File xf86-video-intel-xvmc_i915_i945.diff of Package xorg-x11-driver-video

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File xf86-video-intel-xvmc_i915_i945.diff of Package xorg-x11-driver-video (Revision a271f0c2c57517d06888df449e2825f6)

Currently displaying revision a271f0c2c57517d06888df449e2825f6 , Show latest

diff --git a/src/Makefile.am b/src/Makefile.am
index 858ffd1..028dcfd 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -59,6 +59,8 @@ INTEL_DRI_SRCS = \
          i810_dri.h \
          i830_dri.c \
          i810_hwmc.c \
+         i915_hwmc.c \
+         i915_hwmc.h \
          i830_dri.h
 
 intel_drv_la_SOURCES = \
diff --git a/src/common.h b/src/common.h
index fa96a5d..cc07e49 100644
diff --git a/src/i830.h b/src/i830.h
index aa2b240..a792f38 100644
--- a/src/i830.h
+++ b/src/i830.h
@@ -309,6 +309,12 @@ typedef struct _I830Rec {
    /* For Xvideo */
    i830_memory *overlay_regs;
 #endif
+   
+   /* For XvMC */
+   void *xvmc;
+   Bool XvMCEnabled;
+   Bool IsXvMCSurface;
+ 
    XF86ModReqInfo shadowReq; /* to test for later libshadow */
    Rotation rotation;
    void (*PointerMoved)(int, int, int);
@@ -644,7 +650,8 @@ extern long I830CheckAvailableMemory(ScrnInfoPtr pScrn);
 Bool i830_allocate_2d_memory(ScrnInfoPtr pScrn);
 Bool i830_allocate_texture_memory(ScrnInfoPtr pScrn);
 Bool i830_allocate_3d_memory(ScrnInfoPtr pScrn);
-
+Bool i830_allocate_xvmc_buffer(ScrnInfoPtr pScrn, const char *name,
+                               i830_memory **buffer, unsigned long size, int flags);
 extern Bool I830IsPrimary(ScrnInfoPtr pScrn);
 
 extern Bool I830I2CInit(ScrnInfoPtr pScrn, I2CBusPtr *bus_ptr, int i2c_reg,
@@ -738,6 +745,11 @@ static inline int i830_fb_compression_supported(I830Ptr pI830)
     return TRUE;
 }
 
+/* i915 XvMC */
+Bool I915XvMCInit(ScreenPtr, XF86VideoAdaptorPtr);
+Bool I915XvMCScreenInit(ScreenPtr);
+unsigned long I915XvMCPutImageSize(ScrnInfoPtr);
+
 extern const int I830PatternROP[16];
 extern const int I830CopyROP[16];
 
diff --git a/src/i830_driver.c b/src/i830_driver.c
index 9bb12c6..7957e26 100644
--- a/src/i830_driver.c
+++ b/src/i830_driver.c
@@ -2720,6 +2720,7 @@ I830ScreenInit(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
    if (pI830->directRenderingEnabled) {
       pI830->directRenderingEnabled = I830DRIFinishScreenInit(pScreen);
    }
+
 #endif
 
    /* Setup 3D engine, needed for rotation too */
diff --git a/src/i830_memory.c b/src/i830_memory.c
index b38a5df..b2c5149 100644
--- a/src/i830_memory.c
+++ b/src/i830_memory.c
@@ -1758,4 +1758,24 @@ i830_xf86AllocateOffscreenLinear(ScreenPtr pScreen, int length,
 
     return linear;
 }
+
 #endif
+
+/*
+ * Allocate memory for MC compensation
+ */
+Bool i830_allocate_xvmc_buffer(ScrnInfoPtr pScrn, const char *name,
+                               i830_memory **buffer, unsigned long size,
+                               int flags)
+{
+    *buffer = i830_allocate_memory(pScrn, name, size,
+                                   GTT_PAGE_SIZE, flags);
+
+    if (!*buffer) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "Failed to allocate memory for %s.\n", name);
+        return FALSE;
+    }
+
+    return TRUE;
+}
diff --git a/src/i830_video.c b/src/i830_video.c
index b4f9e74..ed68104 100644
--- a/src/i830_video.c
+++ b/src/i830_video.c
@@ -74,6 +74,8 @@
 #include "dixstruct.h"
 #include "fourcc.h"
 
+#include "i915_hwmc.h"
+
 #ifndef USE_USLEEP_FOR_VIDEO
 #define USE_USLEEP_FOR_VIDEO 0
 #endif
@@ -257,13 +259,37 @@ static XF86AttributeRec GammaAttributes[GAMMA_ATTRIBUTES] = {
     {XvSettable | XvGettable, 0, 0xffffff, "XV_GAMMA5"}
 };
 
-#define NUM_IMAGES 4
+#define NUM_IMAGES 5
 
 static XF86ImageRec Images[NUM_IMAGES] = {
     XVIMAGE_YUY2,
     XVIMAGE_YV12,
     XVIMAGE_I420,
-    XVIMAGE_UYVY
+    XVIMAGE_UYVY,
+    {
+        /*
+         * Below, a dummy picture type that is used in XvPutImage only to do
+         * an overlay update. Introduced for the XvMC client lib.
+         * Defined to have a zero data size.
+         */
+        FOURCC_XVMC,
+        XvYUV,
+        LSBFirst,
+        {'X', 'V', 'M', 'C',
+         0x00, 0x00, 0x00, 0x10, 0x80, 0x00, 0x00, 0xAA, 0x00,
+         0x38, 0x9B, 0x71},
+        12,
+        XvPlanar,
+        3,
+        0, 0, 0, 0,
+        8, 8, 8,
+        1, 2, 2,
+        1, 2, 2,
+        {'Y', 'V', 'U',
+         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+         0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+        XvTopToBottom
+    },
 };
 
 typedef struct {
@@ -534,6 +560,7 @@ I830InitVideo(ScreenPtr pScreen)
     XF86VideoAdaptorPtr *adaptors, *newAdaptors = NULL;
     XF86VideoAdaptorPtr overlayAdaptor = NULL, texturedAdaptor = NULL;
     int num_adaptors;
+    Bool xvmc_init = FALSE;
 
 #if 0
     {
@@ -597,10 +624,18 @@ I830InitVideo(ScreenPtr pScreen)
 	I830InitOffscreenImages(pScreen);
     }
 
+#ifdef XvMCExtension
+    if (texturedAdaptor)
+	xvmc_init = I915XvMCInit(pScreen, texturedAdaptor);
+#endif
     if (num_adaptors)
 	xf86XVScreenInit(pScreen, adaptors, num_adaptors);
 
     xfree(adaptors);
+#ifdef XvMCExtension
+    if (xvmc_init)
+	I915XvMCScreenInit(pScreen);
+#endif
 }
 
 static void
@@ -2351,8 +2386,14 @@ I830PutImage(ScrnInfoPtr pScrn,
     switch (id) {
     case FOURCC_YV12:
     case FOURCC_I420:
-	srcPitch = (width + 3) & ~3;
-	srcPitch2 = ((width >> 1) + 3) & ~3;
+        if (pI830->IsXvMCSurface) {
+            srcPitch = (width + 0x3ff) & ~0x3ff;
+            srcPitch2 = ((width >> 1) + 0x3ff) & ~0x3ff;
+        } else {
+            srcPitch = (width + 0x3) & ~0x3;
+            srcPitch2 = ((width >> 1) + 0x3) & ~0x3;
+        }
+
 	if (pPriv->textured && IS_I965G(pI830))
 	    destId = FOURCC_YUY2;
 	break;
@@ -2587,6 +2628,12 @@ I830QueryImageAttributes(ScrnInfoPtr pScrn,
 	    ErrorF("size is %d\n", size);
 #endif
 	break;
+    case FOURCC_XVMC:
+        *h = (*h + 1) & ~1;
+        size = I915XvMCPutImageSize(pScrn);
+        if (pitches)
+            pitches[0] = size;
+        break;
     case FOURCC_UYVY:
     case FOURCC_YUY2:
     default:
diff --git a/src/i915_hwmc.c b/src/i915_hwmc.c
new file mode 100644
index 0000000..b6865c6
--- /dev/null
+++ b/src/i915_hwmc.c
@@ -0,0 +1,918 @@
+/*
+ * Copyright © 2006 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Authors:
+ *    Xiang Haihao <haihao.xiang@intel.com>
+ *
+ */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <string.h>
+
+#include "xf86.h"
+#include "xf86_OSproc.h"
+#include "xf86Resources.h"
+#include "compiler.h"
+#include "xf86PciInfo.h"
+#include "xf86Pci.h"
+#include "xf86fbman.h"
+#include "regionstr.h"
+
+#include "i830.h"
+#include "i830_dri.h"
+#include "i830_video.h"
+#include "xf86xv.h"
+#include "xf86xvmc.h"
+#include <X11/extensions/Xv.h>
+#include <X11/extensions/XvMC.h>
+#include "xaa.h"
+#include "xaalocal.h"
+#include "dixstruct.h"
+#include "fourcc.h"
+
+#if defined(X_NEED_XVPRIV_H) || defined (_XF86_FOURCC_H_)
+#include "xf86xvpriv.h"
+#endif
+
+#include "i915_hwmc.h"
+
+#define I915_XVMC_MAX_BUFFERS 2
+#define I915_XVMC_MAX_CONTEXTS 4
+#define I915_XVMC_MAX_SURFACES 20
+
+typedef struct _I915XvMCSurfacePriv
+{
+    i830_memory *surface;
+    unsigned long offsets[I915_XVMC_MAX_BUFFERS];
+    drm_handle_t surface_handle;
+} I915XvMCSurfacePriv;
+
+typedef struct _I915XvMCContextPriv
+{
+    i830_memory *mcStaticIndirectState;
+    drm_handle_t sis_handle;
+    i830_memory *mcSamplerState;
+    drm_handle_t ssb_handle;
+    i830_memory *mcMapState;
+    drm_handle_t msb_handle;
+    i830_memory *mcPixelShaderProgram;
+    drm_handle_t psp_handle;
+    i830_memory *mcPixelShaderConstants;
+    drm_handle_t psc_handle;
+    i830_memory *mcCorrdata;
+    drm_handle_t corrdata_handle;
+    i830_memory *mcBatchBuffer;
+    drm_handle_t batchbuffer_handle;
+} I915XvMCContextPriv;
+
+typedef struct _I915XvMC 
+{
+    XID contexts[I915_XVMC_MAX_CONTEXTS];
+    XID surfaces[I915_XVMC_MAX_SURFACES];
+    I915XvMCSurfacePriv *sfprivs[I915_XVMC_MAX_SURFACES];
+    I915XvMCContextPriv *ctxprivs[I915_XVMC_MAX_CONTEXTS];
+    int ncontexts,nsurfaces;
+    PutImageFuncPtr savePutImage;
+} I915XvMC, *I915XvMCPtr;
+
+#define ARRARY_SIZE(a) (sizeof(a) / sizeof(a[0]))
+static int I915XvMCCreateContext (ScrnInfoPtr pScrn, XvMCContextPtr pContext,
+                                  int *num_priv, long **priv );
+static void I915XvMCDestroyContext (ScrnInfoPtr pScrn, XvMCContextPtr pContext);
+
+static int I915XvMCCreateSurface (ScrnInfoPtr pScrn, XvMCSurfacePtr pSurf,
+                                  int *num_priv, long **priv );
+static void I915XvMCDestroySurface (ScrnInfoPtr pScrn, XvMCSurfacePtr pSurf);
+
+static int I915XvMCCreateSubpicture (ScrnInfoPtr pScrn, XvMCSubpicturePtr pSurf,
+                                     int *num_priv, long **priv );
+static void I915XvMCDestroySubpicture (ScrnInfoPtr pScrn, XvMCSubpicturePtr pSurf);
+
+static int yv12_subpicture_index_list[2] = 
+{
+    FOURCC_IA44,
+    FOURCC_AI44
+};
+
+static XF86MCImageIDList yv12_subpicture_list =
+{
+    ARRARY_SIZE(yv12_subpicture_index_list),
+    yv12_subpicture_index_list
+};
+ 
+static XF86MCSurfaceInfoRec i915_YV12_mpg2_surface =
+{
+    FOURCC_YV12,  
+    XVMC_CHROMA_FORMAT_420,
+    0,
+    720,
+    576,
+    720,
+    576,
+    XVMC_MPEG_2,
+    XVMC_OVERLAID_SURFACE | XVMC_SUBPICTURE_INDEPENDENT_SCALING,
+    &yv12_subpicture_list
+};
+
+static XF86MCSurfaceInfoRec i915_YV12_mpg1_surface =
+{
+    FOURCC_YV12,  
+    XVMC_CHROMA_FORMAT_420,
+    0,
+    720,
+    576,
+    720,
+    576,
+    XVMC_MPEG_1,
+    XVMC_OVERLAID_SURFACE | XVMC_SUBPICTURE_INDEPENDENT_SCALING,
+    &yv12_subpicture_list
+};
+
+static XF86MCSurfaceInfoPtr ppSI[2] = 
+{
+    (XF86MCSurfaceInfoPtr)&i915_YV12_mpg2_surface,
+    (XF86MCSurfaceInfoPtr)&i915_YV12_mpg1_surface
+};
+
+/* List of subpicture types that we support */
+static XF86ImageRec ia44_subpicture = XVIMAGE_IA44;
+static XF86ImageRec ai44_subpicture = XVIMAGE_AI44;
+
+static XF86ImagePtr i915_subpicture_list[2] =
+{
+    (XF86ImagePtr)&ia44_subpicture,
+    (XF86ImagePtr)&ai44_subpicture
+};
+
+/* Fill in the device dependent adaptor record. 
+ * This is named "Intel(R) Textured Video" because this code falls under the
+ * XV extenstion, the name must match or it won't be used.
+ *
+ * Surface and Subpicture - see above
+ * Function pointers to functions below
+ */
+static XF86MCAdaptorRec pAdapt = 
+{
+    "Intel(R) Textured Video",		                        /* name */
+    ARRARY_SIZE(ppSI),                                          /* num_surfaces */
+    ppSI,				                        /* surfaces */
+    ARRARY_SIZE(i915_subpicture_list),                          /* num_subpictures */
+    i915_subpicture_list,		                        /* subpictures */
+    (xf86XvMCCreateContextProcPtr)I915XvMCCreateContext,
+    (xf86XvMCDestroyContextProcPtr)I915XvMCDestroyContext,
+    (xf86XvMCCreateSurfaceProcPtr)I915XvMCCreateSurface,
+    (xf86XvMCDestroySurfaceProcPtr)I915XvMCDestroySurface,
+    (xf86XvMCCreateSubpictureProcPtr)I915XvMCCreateSubpicture,
+    (xf86XvMCDestroySubpictureProcPtr)I915XvMCDestroySubpicture
+};
+
+static XF86MCAdaptorPtr ppAdapt[1] = 
+{
+    (XF86MCAdaptorPtr)&pAdapt
+};
+
+/*
+ * Init and clean up the screen private parts of XvMC.
+ */
+static void initI915XvMC(I915XvMCPtr xvmc)
+{
+    unsigned int i;
+
+    for (i = 0; i < I915_XVMC_MAX_CONTEXTS; i++) {
+        xvmc->contexts[i] = 0;
+        xvmc->ctxprivs[i] = NULL;
+    }
+
+    for (i = 0; i < I915_XVMC_MAX_SURFACES; i++) {
+        xvmc->surfaces[i] = 0;
+        xvmc->sfprivs[i] = NULL;
+    }
+    xvmc->ncontexts = 0;
+    xvmc->nsurfaces = 0;
+}
+
+//XXX
+static void cleanupI915XvMC(I915XvMCPtr xvmc, XF86VideoAdaptorPtr * XvAdaptors, int XvAdaptorCount)
+{
+    unsigned int i;
+
+    for (i = 0; i < I915_XVMC_MAX_CONTEXTS; i++) {
+        xvmc->contexts[i] = 0;
+
+        if (xvmc->ctxprivs[i]) {
+            xfree(xvmc->ctxprivs[i]);
+            xvmc->ctxprivs[i] = NULL;
+        }
+    }
+
+    for (i = 0; i < I915_XVMC_MAX_SURFACES; i++) {
+        xvmc->surfaces[i] = 0;
+        
+        if (xvmc->sfprivs[i]) {
+            xfree(xvmc->sfprivs[i]);
+            xvmc->sfprivs[i] = NULL;
+        }
+    }
+}
+
+static Bool i915_map_xvmc_buffers(ScrnInfoPtr pScrn, I915XvMCContextPriv *ctxpriv)
+{
+    I830Ptr pI830 = I830PTR(pScrn);
+
+    if (drmAddMap(pI830->drmSubFD,
+                  (drm_handle_t)(ctxpriv->mcStaticIndirectState->offset + pI830->LinearAddr),
+                  ctxpriv->mcStaticIndirectState->size, DRM_AGP, 0,
+                  (drmAddress)&ctxpriv->sis_handle) < 0) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[drm] drmAddMap(sis_handle) failed!\n");
+        return FALSE;
+    }
+
+    if (drmAddMap(pI830->drmSubFD,
+                  (drm_handle_t)(ctxpriv->mcSamplerState->offset + pI830->LinearAddr),
+                  ctxpriv->mcSamplerState->size, DRM_AGP, 0,
+                  (drmAddress)&ctxpriv->ssb_handle) < 0) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[drm] drmAddMap(ssb_handle) failed!\n");
+        return FALSE;
+    }
+
+    if (drmAddMap(pI830->drmSubFD,
+                  (drm_handle_t)(ctxpriv->mcMapState->offset + pI830->LinearAddr),
+                  ctxpriv->mcMapState->size, DRM_AGP, 0,
+                  (drmAddress)&ctxpriv->msb_handle) < 0) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[drm] drmAddMap(msb_handle) failed!\n");
+        return FALSE;
+    }
+
+    if (drmAddMap(pI830->drmSubFD,
+                  (drm_handle_t)(ctxpriv->mcPixelShaderProgram->offset + pI830->LinearAddr),
+                  ctxpriv->mcPixelShaderProgram->size, DRM_AGP, 0,
+                  (drmAddress)&ctxpriv->psp_handle) < 0) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[drm] drmAddMap(psp_handle) failed!\n");
+        return FALSE;
+    }
+
+    if (drmAddMap(pI830->drmSubFD,
+                  (drm_handle_t)(ctxpriv->mcPixelShaderConstants->offset + pI830->LinearAddr),
+                  ctxpriv->mcPixelShaderConstants->size, DRM_AGP, 0,
+                  (drmAddress)&ctxpriv->psc_handle) < 0) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[drm] drmAddMap(psc_handle) failed!\n");
+        return FALSE;
+    }
+
+    if (drmAddMap(pI830->drmSubFD,
+                  (drm_handle_t)(ctxpriv->mcCorrdata->offset + pI830->LinearAddr),
+                  ctxpriv->mcCorrdata->size, DRM_AGP, 0,
+                  (drmAddress)&ctxpriv->corrdata_handle) < 0) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[drm] drmAddMap(corrdata_handle) failed!\n");
+        return FALSE;
+    }
+
+    if (drmAddMap(pI830->drmSubFD,
+                  (drm_handle_t)(ctxpriv->mcBatchBuffer->offset + pI830->LinearAddr),
+                  ctxpriv->mcBatchBuffer->size, DRM_AGP, 0,
+                  (drmAddress)&ctxpriv->batchbuffer_handle) < 0) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[drm] drmAddMap(batchbuffer_handle) failed!\n");
+        return FALSE;
+    }
+        
+    return TRUE;
+}
+
+static void i915_unmap_xvmc_buffers(ScrnInfoPtr pScrn, I915XvMCContextPriv *ctxpriv)
+{
+    I830Ptr pI830 = I830PTR(pScrn);
+    
+    if (ctxpriv->sis_handle) {
+        drmRmMap(pI830->drmSubFD, ctxpriv->sis_handle);
+        ctxpriv->sis_handle = 0;
+    }
+
+    if (ctxpriv->ssb_handle) {
+        drmRmMap(pI830->drmSubFD, ctxpriv->ssb_handle);
+        ctxpriv->ssb_handle = 0;
+    }
+
+    if (ctxpriv->msb_handle) {
+        drmRmMap(pI830->drmSubFD, ctxpriv->msb_handle);
+        ctxpriv->msb_handle = 0;
+    }
+
+    if (ctxpriv->psp_handle) {
+        drmRmMap(pI830->drmSubFD, ctxpriv->psp_handle);
+        ctxpriv->psp_handle = 0;
+    }
+
+    if (ctxpriv->psc_handle) {
+        drmRmMap(pI830->drmSubFD, ctxpriv->psc_handle);
+        ctxpriv->psc_handle = 0;
+    }
+
+    if (ctxpriv->corrdata_handle) {
+        drmRmMap(pI830->drmSubFD, ctxpriv->corrdata_handle);
+        ctxpriv->corrdata_handle = 0;
+    }
+
+    if (ctxpriv->batchbuffer_handle) {
+        drmRmMap(pI830->drmSubFD, ctxpriv->batchbuffer_handle);
+        ctxpriv->batchbuffer_handle = 0;
+    }
+}
+
+static Bool i915_allocate_xvmc_buffers(ScrnInfoPtr pScrn, I915XvMCContextPriv *ctxpriv)
+{
+    I830Ptr pI830 = I830PTR(pScrn);
+    int flags = (IS_I915G(pI830) || IS_I915GM(pI830) || IS_I945G(pI830) || IS_I945GM(pI830)) ? 
+        (ALIGN_BOTH_ENDS | NEED_PHYSICAL_ADDR) : ALIGN_BOTH_ENDS;
+    
+    if (!i830_allocate_xvmc_buffer(pScrn, "[XvMC]Static Indirect State",
+                                  &(ctxpriv->mcStaticIndirectState), 4 * 1024,
+                                  flags)) {
+        return FALSE;
+    }
+
+    if (!i830_allocate_xvmc_buffer(pScrn, "[XvMC]Sampler State",
+                                  &(ctxpriv->mcSamplerState), 4 * 1024,
+                                  flags)) {
+        return FALSE;
+    }
+
+    if (!i830_allocate_xvmc_buffer(pScrn, "[XvMC]Map State",
+                                  &(ctxpriv->mcMapState), 4 * 1024,
+                                  flags)) {
+        return FALSE;
+    }
+
+    if (!i830_allocate_xvmc_buffer(pScrn, "[XvMC]Pixel Shader Program",
+                                  &(ctxpriv->mcPixelShaderProgram), 4 * 1024,
+                                  flags)) {
+        return FALSE;
+    }
+
+    if (!i830_allocate_xvmc_buffer(pScrn, "[XvMC]Pixel Shader Constants",
+                                  &(ctxpriv->mcPixelShaderConstants), 4 * 1024,
+                                  flags)) {
+        return FALSE;
+    }
+
+    if (!i830_allocate_xvmc_buffer(pScrn, "[XvMC]Correction Data Buffer", 
+                                   &(ctxpriv->mcCorrdata), 512 * 1024,
+                                   ALIGN_BOTH_ENDS)) {
+        return FALSE;
+    }
+
+    if (!i830_allocate_xvmc_buffer(pScrn, "[XvMC]batch buffer",
+                                   &(ctxpriv->mcBatchBuffer), 8 * 1024,
+                                   ALIGN_BOTH_ENDS)) {
+        return FALSE;
+    }
+
+    i830_describe_allocations(pScrn, 1, "");
+    return TRUE;
+}
+
+static void i915_free_xvmc_buffers(ScrnInfoPtr pScrn, I915XvMCContextPriv *ctxpriv)
+{
+    if (ctxpriv->mcStaticIndirectState) {
+        i830_free_memory(pScrn, ctxpriv->mcStaticIndirectState);
+        ctxpriv->mcStaticIndirectState = NULL;
+    }
+
+    if (ctxpriv->mcSamplerState) {
+        i830_free_memory(pScrn, ctxpriv->mcSamplerState);
+        ctxpriv->mcSamplerState = NULL;
+    }
+
+    if (ctxpriv->mcMapState) {
+        i830_free_memory(pScrn, ctxpriv->mcMapState);
+        ctxpriv->mcMapState = NULL;
+    }
+
+    if (ctxpriv->mcPixelShaderProgram) {
+        i830_free_memory(pScrn, ctxpriv->mcPixelShaderProgram);
+        ctxpriv->mcPixelShaderProgram = NULL;
+    }
+
+    if (ctxpriv->mcPixelShaderConstants) {
+        i830_free_memory(pScrn, ctxpriv->mcPixelShaderConstants);
+        ctxpriv->mcPixelShaderConstants = NULL;
+    }
+
+    if (ctxpriv->mcCorrdata) {
+        i830_free_memory(pScrn, ctxpriv->mcCorrdata);
+        ctxpriv->mcCorrdata = NULL;
+    }
+
+    if (ctxpriv->mcBatchBuffer) {
+        i830_free_memory(pScrn, ctxpriv->mcBatchBuffer);
+        ctxpriv->mcBatchBuffer = NULL;
+    }
+}
+
+/**************************************************************************
+ *
+ *  I915XvMCCreateContext
+ *
+ *  Some info about the private data:
+ *
+ *  Set *num_priv to the number of 32bit words that make up the size of
+ *  of the data that priv will point to.
+ *
+ *  *priv = (long *) xcalloc (elements, sizeof(element))
+ *  *num_priv = (elements * sizeof(element)) >> 2;
+ *
+ **************************************************************************/
+
+static int I915XvMCCreateContext (ScrnInfoPtr pScrn, XvMCContextPtr pContext,
+                                  int *num_priv, long **priv )
+{
+    I830Ptr pI830 = I830PTR(pScrn);
+    DRIInfoPtr pDRIInfo = pI830->pDRIInfo;
+    I830DRIPtr pI830DRI = pDRIInfo->devPrivate;
+    I915XvMCCreateContextRec *contextRec = NULL;
+    I915XvMCPtr pXvMC = pI830->xvmc;
+    I915XvMCContextPriv *ctxpriv = NULL;
+    int i;
+
+    *priv = NULL;
+    *num_priv = 0;
+
+    if (!pI830->XvMCEnabled) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[XvMC] I915XvMCCreateContext: Cannot use XvMC!\n");
+        return BadAlloc;
+    }
+
+    for (i = 0; i < I915_XVMC_MAX_CONTEXTS; i++) {
+        if (!pXvMC->contexts[i])
+            break;
+    }
+
+    if (i == I915_XVMC_MAX_CONTEXTS || 
+	    pXvMC->ncontexts >= I915_XVMC_MAX_CONTEXTS) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[XvMC] I915XvMCCreateContext: Out of contexts.\n");
+        return BadAlloc;
+    }
+
+    *priv = xcalloc(1, sizeof(I915XvMCCreateContextRec));
+    contextRec = (I915XvMCCreateContextRec *)*priv;
+
+    if (!*priv) {
+        *num_priv = 0;
+        return BadAlloc;
+    }
+
+    *num_priv = sizeof(I915XvMCCreateContextRec) >> 2;
+
+    ctxpriv = (I915XvMCContextPriv *)xcalloc(1, sizeof(I915XvMCContextPriv));
+
+    if (!ctxpriv) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[XvMC] I915XvMCCreateContext: Unable to allocate memory!\n");
+        xfree(*priv);
+        *priv = NULL;
+        *num_priv = 0;
+        return BadAlloc;
+    }
+
+    if (!i915_allocate_xvmc_buffers(pScrn, ctxpriv)) {
+        i915_free_xvmc_buffers(pScrn, ctxpriv);
+        xfree(ctxpriv);
+        ctxpriv = NULL;
+        xfree(*priv);
+        *priv = NULL;
+        *num_priv = 0;
+        return BadAlloc;
+    }
+
+    if (!i915_map_xvmc_buffers(pScrn, ctxpriv)) {
+        i915_unmap_xvmc_buffers(pScrn, ctxpriv);
+        i915_free_xvmc_buffers(pScrn, ctxpriv);
+        xfree(ctxpriv);
+        ctxpriv = NULL;
+        xfree(*priv);
+        *priv = NULL;
+        *num_priv = 0;
+        return BadAlloc;
+    }
+
+    contextRec->ctxno = i;
+    contextRec->sis.handle = ctxpriv->sis_handle;
+    contextRec->sis.offset = ctxpriv->mcStaticIndirectState->offset;
+    contextRec->sis.size = ctxpriv->mcStaticIndirectState->size;
+    contextRec->sis.bus_addr = ctxpriv->mcStaticIndirectState->bus_addr;
+    contextRec->ssb.handle = ctxpriv->ssb_handle;
+    contextRec->ssb.offset = ctxpriv->mcSamplerState->offset;
+    contextRec->ssb.size = ctxpriv->mcSamplerState->size;
+    contextRec->ssb.bus_addr = ctxpriv->mcSamplerState->bus_addr;
+    contextRec->msb.handle = ctxpriv->msb_handle;
+    contextRec->msb.offset = ctxpriv->mcMapState->offset;
+    contextRec->msb.size = ctxpriv->mcMapState->size;
+    contextRec->msb.bus_addr = ctxpriv->mcMapState->bus_addr;
+    contextRec->psp.handle = ctxpriv->psp_handle;
+    contextRec->psp.offset = ctxpriv->mcPixelShaderProgram->offset;
+    contextRec->psp.size = ctxpriv->mcPixelShaderProgram->size;
+    contextRec->psp.bus_addr = ctxpriv->mcPixelShaderProgram->bus_addr;
+    contextRec->psc.handle = ctxpriv->psc_handle;
+    contextRec->psc.offset = ctxpriv->mcPixelShaderConstants->offset;
+    contextRec->psc.size = ctxpriv->mcPixelShaderConstants->size;
+    contextRec->psc.bus_addr = ctxpriv->mcPixelShaderConstants->bus_addr;
+    contextRec->corrdata.handle = ctxpriv->corrdata_handle;
+    contextRec->corrdata.offset = ctxpriv->mcCorrdata->offset;
+    contextRec->corrdata.size = ctxpriv->mcCorrdata->size;
+    contextRec->batchbuffer.handle = ctxpriv->batchbuffer_handle;
+    contextRec->batchbuffer.offset = ctxpriv->mcBatchBuffer->offset;
+    contextRec->batchbuffer.size = ctxpriv->mcBatchBuffer->size;
+    contextRec->sarea_size = pDRIInfo->SAREASize;
+    contextRec->sarea_priv_offset = sizeof(XF86DRISAREARec);
+    contextRec->screen = pScrn->pScreen->myNum;
+    contextRec->depth = pScrn->bitsPerPixel;
+    contextRec->deviceID = pI830DRI->deviceID;
+
+    pXvMC->ncontexts++;
+    pXvMC->contexts[i] = pContext->context_id;
+    pXvMC->ctxprivs[i] = ctxpriv;
+
+    return Success;
+}
+
+static int I915XvMCCreateSurface(ScrnInfoPtr pScrn, XvMCSurfacePtr pSurf,
+                                 int *num_priv, long **priv )
+{
+    I830Ptr pI830 = I830PTR(pScrn);
+    I915XvMCPtr pXvMC = pI830->xvmc;
+    I915XvMCSurfacePriv *sfpriv = NULL;
+    I915XvMCCreateSurfaceRec *surfaceRec = NULL;
+    XvMCContextPtr ctx = NULL;
+    unsigned int srfno;
+    unsigned long bufsize;
+
+    if (!pI830->XvMCEnabled) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[XvMC] I915XvMCCreateContext: Cannot use XvMC!\n");
+        return BadAlloc;
+    }
+
+    *priv = NULL;
+    *num_priv = 0;
+
+    for (srfno = 0; srfno < I915_XVMC_MAX_SURFACES; ++srfno) {
+        if (!pXvMC->surfaces[srfno])
+            break;
+    }
+
+    if (srfno == I915_XVMC_MAX_SURFACES ||
+	    pXvMC->nsurfaces >= I915_XVMC_MAX_SURFACES) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[XvMC] I915XvMCCreateSurface: Too many surfaces !\n");
+        return BadAlloc;
+    }
+
+    *priv = xcalloc(1, sizeof(I915XvMCCreateSurfaceRec));
+    surfaceRec = (I915XvMCCreateSurfaceRec *)*priv;     
+
+    if (!*priv) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[XvMC] I915XvMCCreateSurface: Unable to allocate memory!\n");
+        return BadAlloc;
+    }
+
+    *num_priv = sizeof(I915XvMCCreateSurfaceRec) >> 2;
+    sfpriv = (I915XvMCSurfacePriv *)xcalloc(1, sizeof(I915XvMCSurfacePriv));
+
+    if (!sfpriv) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[XvMC] I915XvMCCreateSurface: Unable to allocate memory!\n");
+        xfree(*priv);
+        *priv = NULL;
+        *num_priv = 0;
+        return BadAlloc;
+    }
+
+    ctx = pSurf->context;
+    bufsize = SIZE_YUV420(ctx->width, ctx->height);
+
+    if (!i830_allocate_xvmc_buffer(pScrn, "XvMC surface", 
+                                   &(sfpriv->surface), bufsize,
+                                   ALIGN_BOTH_ENDS)) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[XvMC] I915XvMCCreateSurface: Failed to allocate XvMC surface space!\n");
+        xfree(sfpriv);
+        xfree(*priv);
+        *priv = NULL;
+        *num_priv = 0;
+        return BadAlloc;
+    }
+    i830_describe_allocations(pScrn, 1, "");
+    if (drmAddMap(pI830->drmSubFD,
+                  (drm_handle_t)(sfpriv->surface->offset + pI830->LinearAddr),
+                  sfpriv->surface->size, DRM_AGP, 0,
+                  (drmAddress)&sfpriv->surface_handle) < 0) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[drm] drmAddMap(surface_handle) failed!\n");
+        i830_free_memory(pScrn, sfpriv->surface);
+        xfree(sfpriv);
+        xfree(*priv);
+        *priv = NULL;
+        *num_priv = 0;
+        return BadAlloc;
+    }
+
+    surfaceRec->srfno = srfno;
+    surfaceRec->srf.handle = sfpriv->surface_handle;
+    surfaceRec->srf.offset = sfpriv->surface->offset;
+    surfaceRec->srf.size = sfpriv->surface->size;
+
+    pXvMC->surfaces[srfno] = pSurf->surface_id;
+    pXvMC->sfprivs[srfno]= sfpriv;
+    pXvMC->nsurfaces++;
+
+    return Success;
+}
+
+static int I915XvMCCreateSubpicture (ScrnInfoPtr pScrn, XvMCSubpicturePtr pSubp,
+                                     int *num_priv, long **priv )
+{
+    I830Ptr pI830 = I830PTR(pScrn);
+    I915XvMCPtr pXvMC = pI830->xvmc;
+    I915XvMCSurfacePriv *sfpriv = NULL;
+    I915XvMCCreateSurfaceRec *surfaceRec = NULL;
+    XvMCContextPtr ctx = NULL;
+    unsigned int srfno;
+    unsigned int bufsize;
+
+    *priv = NULL;
+    *num_priv = 0;
+
+    for (srfno = 0; srfno < I915_XVMC_MAX_SURFACES; ++srfno) {
+        if (!pXvMC->surfaces[srfno])
+            break;
+    }
+
+    if (srfno == I915_XVMC_MAX_SURFACES ||
+	    pXvMC->nsurfaces >= I915_XVMC_MAX_SURFACES) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[XvMC] I915XvMCCreateSubpicture: Too many surfaces !\n");
+        return BadAlloc;
+    }
+
+    *priv = xcalloc(1, sizeof(I915XvMCCreateSurfaceRec));
+    surfaceRec = (I915XvMCCreateSurfaceRec *)*priv;     
+
+    if (!*priv) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[XvMC] I915XvMCCreateSubpicture: Unable to allocate memory!\n");
+        return BadAlloc;
+    }
+
+    *num_priv = sizeof(I915XvMCCreateSurfaceRec) >> 2;
+    sfpriv = (I915XvMCSurfacePriv *)xcalloc(1, sizeof(I915XvMCSurfacePriv));
+
+    if (!sfpriv) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[XvMC] I915XvMCCreateSubpicture: Unable to allocate memory!\n");
+        xfree(*priv);
+        *priv = NULL;
+        *num_priv = 0;
+        return BadAlloc;
+    }
+
+    ctx = pSubp->context;
+    bufsize = SIZE_XX44(ctx->width, ctx->height);
+
+    if (!i830_allocate_xvmc_buffer(pScrn, "XvMC surface", 
+                                   &(sfpriv->surface), bufsize,
+                                   ALIGN_BOTH_ENDS)) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[XvMC] I915XvMCCreateSurface: Failed to allocate XvMC surface space!\n");
+        xfree(sfpriv);
+        xfree(*priv);
+        *priv = NULL;
+        *num_priv = 0;
+        return BadAlloc;
+    }
+
+    if (drmAddMap(pI830->drmSubFD,
+                  (drm_handle_t)(sfpriv->surface->offset + pI830->LinearAddr),
+                  sfpriv->surface->size, DRM_AGP, 0,
+                  (drmAddress)&sfpriv->surface_handle) < 0) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+                   "[drm] drmAddMap(surface_handle) failed!\n");
+        i830_free_memory(pScrn, sfpriv->surface);
+        xfree(sfpriv);
+        xfree(*priv);
+        *priv = NULL;
+        *num_priv = 0;
+        return BadAlloc;
+    }
+
+    surfaceRec->srfno = srfno;
+    surfaceRec->srf.handle = sfpriv->surface_handle;
+    surfaceRec->srf.offset = sfpriv->surface->offset;
+    surfaceRec->srf.size = sfpriv->surface->size;
+
+    pXvMC->sfprivs[srfno] = sfpriv;
+    pXvMC->surfaces[srfno] = pSubp->subpicture_id;
+    pXvMC->nsurfaces++;
+
+    return Success;
+}
+
+static void I915XvMCDestroyContext (ScrnInfoPtr pScrn, XvMCContextPtr pContext)
+{
+    I830Ptr pI830 = I830PTR(pScrn);
+    I915XvMCPtr pXvMC = pI830->xvmc;
+    int i;
+
+    for (i = 0; i < I915_XVMC_MAX_CONTEXTS; i++) {
+        if (pXvMC->contexts[i] == pContext->context_id) {
+            i915_unmap_xvmc_buffers(pScrn, pXvMC->ctxprivs[i]);
+            i915_free_xvmc_buffers(pScrn, pXvMC->ctxprivs[i]);
+            xfree(pXvMC->ctxprivs[i]);
+            pXvMC->ctxprivs[i] = 0;
+            pXvMC->ncontexts--;
+            pXvMC->contexts[i] = 0;
+            return;
+        }
+    }
+
+    return;
+}
+
+static void I915XvMCDestroySurface (ScrnInfoPtr pScrn, XvMCSurfacePtr pSurf)
+{
+    I830Ptr pI830 = I830PTR(pScrn);
+    I915XvMCPtr pXvMC = pI830->xvmc;
+    int i;
+
+    for (i = 0; i < I915_XVMC_MAX_SURFACES; i++) {
+        if (pXvMC->surfaces[i] == pSurf->surface_id) {
+            drmRmMap(pI830->drmSubFD, pXvMC->sfprivs[i]->surface_handle);
+            i830_free_memory(pScrn, pXvMC->sfprivs[i]->surface);            
+            xfree(pXvMC->sfprivs[i]);
+            pXvMC->nsurfaces--;
+            pXvMC->sfprivs[i] = 0;
+            pXvMC->surfaces[i] = 0;
+            return;
+        }
+    }
+
+    return;
+}
+
+static void I915XvMCDestroySubpicture (ScrnInfoPtr pScrn, XvMCSubpicturePtr pSubp)
+{
+    I830Ptr pI830 = I830PTR(pScrn);
+    I915XvMCPtr pXvMC = pI830->xvmc;
+    int i;
+
+    for (i = 0; i < I915_XVMC_MAX_SURFACES; i++) {
+        if (pXvMC->surfaces[i] == pSubp->subpicture_id) {
+            drmRmMap(pI830->drmSubFD, pXvMC->sfprivs[i]->surface_handle);
+            i830_free_memory(pScrn, pXvMC->sfprivs[i]->surface);            
+            xfree(pXvMC->sfprivs[i]);
+            pXvMC->nsurfaces--;
+            pXvMC->sfprivs[i] = 0;
+            pXvMC->surfaces[i] = 0;
+            return;
+        }
+    }
+
+    return;
+}
+
+static int I915XvMCPutImage(ScrnInfoPtr pScrn, short src_x, short src_y,
+                                     short drw_x, short drw_y, short src_w,
+                                     short src_h, short drw_w, short drw_h,
+                                     int id, unsigned char *buf, short width,
+                                     short height, Bool sync, RegionPtr clipBoxes, pointer data,
+                                     DrawablePtr pDraw)
+{
+    I830Ptr pI830 = I830PTR(pScrn);
+    I915XvMCPtr pXvMC = pI830->xvmc;
+    I915XvMCCommandBuffer *i915XvMCData = (I915XvMCCommandBuffer *)buf;
+    int ret;
+
+    if (pI830->XvMCEnabled) {
+        if (FOURCC_XVMC == id) {
+            switch (i915XvMCData->command) {
+            case I915_XVMC_COMMAND_DISPLAY:
+		if ((i915XvMCData->srfNo >= I915_XVMC_MAX_SURFACES) ||
+			!pXvMC->surfaces[i915XvMCData->srfNo] ||
+			!pXvMC->sfprivs[i915XvMCData->srfNo]) {
+		    xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+			    "[XvMC] I915XvMCPutImage: Invalid parameters !\n");
+		    return 1;
+		}
+
+		buf = pI830->FbBase + pXvMC->sfprivs[i915XvMCData->srfNo]->surface->offset;
+		id = i915XvMCData->real_id;
+		pI830->IsXvMCSurface = 1;
+		break;
+            default:
+                return 0;
+            }
+        }
+    }
+
+    ret = pXvMC->savePutImage(pScrn, src_x, src_y, drw_x, drw_y, src_w, src_h,
+                        drw_w, drw_h, id, buf, width, height, sync, clipBoxes, data, pDraw);
+    pI830->IsXvMCSurface = 0;
+    return ret;
+}
+
+/*********************************** Public Function **************************************/
+
+/**************************************************************************
+ *
+ *  I915InitMC
+ *
+ *  Inputs:
+ *    Screen pointer
+ *
+ *  Outputs:
+ *    None
+ *  
+ **************************************************************************/
+
+Bool I915XvMCInit(ScreenPtr pScreen, XF86VideoAdaptorPtr XvAdapt)
+{
+    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
+    I830Ptr pI830 = I830PTR(pScrn);
+    I915XvMCPtr pXvMC;
+
+    if (!IS_I9XX(pI830) || IS_I965G(pI830))
+	return FALSE;
+
+    pXvMC = (I915XvMCPtr)xcalloc(1, sizeof(I915XvMC));
+    if (!pXvMC) {
+        xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
+                   "[XvMC] alloc driver private failed!\n");
+        return FALSE;
+    }
+    pI830->xvmc = pXvMC;
+    initI915XvMC(pXvMC);
+
+    /* set up wrappers */
+    pXvMC->savePutImage = XvAdapt->PutImage;
+    XvAdapt->PutImage = I915XvMCPutImage;
+    return TRUE;
+}
+
+Bool I915XvMCScreenInit(ScreenPtr pScreen)
+{
+    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
+    I830Ptr pI830 = I830PTR(pScrn);
+
+    if (xf86XvMCScreenInit(pScreen, 1, ppAdapt)) {
+	xf86DrvMsg(pScrn->scrnIndex, X_INFO,
+		"[XvMC] Initialized XvMC.\n");
+	pI830->XvMCEnabled = TRUE;
+    } else {
+        xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
+		"[XvMC] xf86 XvMC initial failed\n");
+	pI830->XvMCEnabled = FALSE;
+	xfree(pI830->xvmc);
+	pI830->xvmc = NULL;
+	return FALSE;
+    }
+    return TRUE;
+}
+
+unsigned long I915XvMCPutImageSize(ScrnInfoPtr pScrn)
+{
+    I830Ptr pI830 = I830PTR(pScrn);
+
+    if (pI830->XvMCEnabled)
+        return sizeof(I915XvMCCommandBuffer);
+
+    return 0;
+}
diff --git a/src/i915_hwmc.h b/src/i915_hwmc.h
new file mode 100644
index 0000000..597d30c
--- /dev/null
+++ b/src/i915_hwmc.h
@@ -0,0 +1,88 @@
+/*
+ * Copyright © 2006 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Authors:
+ *    Xiang Haihao <haihao.xiang@intel.com>
+ *
+ */
+#ifndef _I915_HWMC_H
+#define _I915_HWMC_H
+
+#define STRIDE(w)               (((w) + 0x3ff) & ~0x3ff)
+#define SIZE_Y420(w, h)         (h * STRIDE(w))
+#define SIZE_UV420(w, h)        ((h >> 1) * STRIDE(w >> 1))
+#define SIZE_YUV420(w, h)       (h * (STRIDE(w) + STRIDE(w >> 1)))
+#define SIZE_XX44(w, h)         (h * STRIDE(w))
+
+#define FOURCC_XVMC     (('C' << 24) + ('M' << 16) + ('V' << 8) + 'X')
+
+#define I915_NUM_XVMC_ATTRIBUTES       0x02
+#define I915_XVMC_VALID 0x80000000
+
+/*
+ * Commands that client submits through XvPutImage:
+ */
+
+#define I915_XVMC_COMMAND_DISPLAY      0x00
+#define I915_XVMC_COMMAND_UNDISPLAY    0x01
+
+typedef struct
+{
+    unsigned int command;
+    unsigned int ctxNo;
+    unsigned int srfNo;
+    unsigned int subPicNo;
+    int real_id;
+} I915XvMCCommandBuffer;
+
+struct hwmc_buffer
+{
+    drm_handle_t handle;
+    unsigned long offset;
+    unsigned long size;
+    unsigned long bus_addr;
+};
+
+typedef struct 
+{
+    unsigned int ctxno; /* XvMC private context reference number */
+    struct hwmc_buffer sis;
+    struct hwmc_buffer ssb;
+    struct hwmc_buffer msb;
+    struct hwmc_buffer psp;
+    struct hwmc_buffer psc;
+    struct hwmc_buffer corrdata;/* Correction Data Buffer */
+    struct hwmc_buffer batchbuffer;
+    unsigned int sarea_size;
+    unsigned int sarea_priv_offset;
+    unsigned int screen;
+    unsigned int depth;
+    int deviceID;
+} I915XvMCCreateContextRec;
+
+typedef struct 
+{
+    unsigned int srfno;
+    struct hwmc_buffer srf;
+} I915XvMCCreateSurfaceRec;
+
+#endif /* _I915_HWMC_H */
diff --git a/src/i915_render.c b/src/i915_render.c
index 9c937f2..9d5bc0a 100644
diff --git a/src/xvmc/I915XvMC.c b/src/xvmc/I915XvMC.c
new file mode 100644
index 0000000..22718de
--- /dev/null
+++ b/src/xvmc/I915XvMC.c
@@ -0,0 +1,3303 @@
+/*
+ * Copyright © 2006 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Authors:
+ *    Xiang Haihao <haihao.xiang@intel.com>
+ *
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <string.h>
+#include <assert.h>
+
+#include <pthread.h>
+#include <sys/ioctl.h>
+#include <X11/Xlibint.h>
+#include <fourcc.h>
+#include <X11/extensions/Xv.h>
+#include <X11/extensions/Xvlib.h>
+#include <X11/extensions/XvMC.h>
+#include <X11/extensions/XvMClib.h>
+#include <xf86drm.h>
+#include <drm_sarea.h>
+
+#include "I915XvMC.h"
+#include "i915_structs.h"
+#include "i915_program.h"
+#include "intel_batchbuffer.h"
+#include "xf86dri.h"
+#include "driDrawable.h"
+
+#define _STATIC_ static
+
+#define SAREAPTR(ctx) ((drmI830Sarea *)                     \
+                       (((CARD8 *)(ctx)->sarea_address) +   \
+                        (ctx)->sarea_priv_offset))
+
+#define YOFFSET(surface)        (surface->srf.offset)
+#define UOFFSET(surface)        (surface->srf.offset + \
+                                 SIZE_Y420(surface->width, surface->height) + \
+                                 SIZE_UV420(surface->width, surface->height))
+#define VOFFSET(surface)        (surface->srf.offset + \
+                                 SIZE_Y420(surface->width, surface->height))
+
+/* Lookup tables to speed common calculations */
+_STATIC_ unsigned int mb_bytes[] = {
+    000, 128, 128, 256, 128, 256, 256, 384,  // 0
+    128, 256, 256, 384, 256, 384, 384, 512,  // 1
+    128, 256, 256, 384, 256, 384, 384, 512,  // 10
+    256, 384, 384, 512, 384, 512, 512, 640,  // 11
+    128, 256, 256, 384, 256, 384, 384, 512,  // 100
+    256, 384, 384, 512, 384, 512, 512, 640,  // 101    
+    256, 384, 384, 512, 384, 512, 512, 640,  // 110
+    384, 512, 512, 640, 512, 640, 640, 768   // 111
+};
+
+typedef union {
+    short s[4];
+    uint  u[2];
+} su_t;
+
+_STATIC_ char I915KernelDriverName[] = "i915";
+_STATIC_ int error_base;
+_STATIC_ int event_base;
+
+_STATIC_ int findOverlap(unsigned int width, unsigned int height,
+                       short *dstX, short *dstY,
+                       short *srcX, short *srcY, 
+                       unsigned short *areaW, unsigned short *areaH)
+{
+    int w, h;
+    unsigned int mWidth, mHeight;
+
+    w = *areaW;
+    h = *areaH;
+
+    if ((*dstX >= width) || (*dstY >= height))
+        return 1;
+
+    if (*dstX < 0) {
+        w += *dstX;
+        *srcX -= *dstX;
+        *dstX = 0;
+    }
+
+    if (*dstY < 0) {
+        h += *dstY;
+        *srcY -= *dstY;
+        *dstY = 0;
+    }
+
+    if ((w <= 0) || ((h <= 0)))
+        return 1;
+
+    mWidth = width - *dstX;
+    mHeight = height - *dstY;
+    *areaW = (w <= mWidth) ? w : mWidth;
+    *areaH = (h <= mHeight) ? h : mHeight;
+    return 0;
+}
+
+_STATIC_ __inline__ void renderError(void) 
+{
+    printf("Invalid Macroblock Parameters found.\n");
+    return;
+}
+
+_STATIC_ void I915XvMCContendedLock(i915XvMCContext *pI915XvMC, drmLockFlags flags)
+{
+    drmGetLock(pI915XvMC->fd, pI915XvMC->hHWContext, flags);
+}
+
+#define SET_BLOCKED_SIGSET(pI915XvMC)   do {    \
+        sigset_t bl_mask;                       \
+        sigfillset(&bl_mask);           \
+        sigdelset(&bl_mask, SIGFPE);    \
+        sigdelset(&bl_mask, SIGILL);    \
+        sigdelset(&bl_mask, SIGSEGV);   \
+        sigdelset(&bl_mask, SIGBUS);    \
+        sigdelset(&bl_mask, SIGKILL);   \
+        pthread_sigmask(SIG_SETMASK, &bl_mask, &pI915XvMC->sa_mask); \
+    } while (0)
+
+#define RESTORE_BLOCKED_SIGSET(pI915XvMC) do {    \
+        pthread_sigmask(SIG_SETMASK, &pI915XvMC->sa_mask, NULL); \
+    } while (0)
+
+#define PPTHREAD_MUTEX_LOCK(pI915XvMC) do {             \
+        SET_BLOCKED_SIGSET(pI915XvMC);                  \
+        pthread_mutex_lock(&pI915XvMC->ctxmutex);       \
+    } while (0)
+
+#define PPTHREAD_MUTEX_UNLOCK(pI915XvMC) do {           \
+        pthread_mutex_unlock(&pI915XvMC->ctxmutex);     \
+        RESTORE_BLOCKED_SIGSET(pI915XvMC);              \
+    } while (0)
+
+/* Lock the hardware and validate our state.
+ */
+_STATIC_ void LOCK_HARDWARE(i915XvMCContext  *pI915XvMC)
+{
+    char __ret = 0;
+
+    PPTHREAD_MUTEX_LOCK(pI915XvMC);
+    assert(!pI915XvMC->locked);
+
+    DRM_CAS(pI915XvMC->driHwLock, pI915XvMC->hHWContext,
+            (DRM_LOCK_HELD|pI915XvMC->hHWContext), __ret);
+
+    if (__ret)
+        I915XvMCContendedLock(pI915XvMC, 0);
+
+    pI915XvMC->locked = 1;
+}
+
+/* Unlock the hardware using the global current context
+ */
+_STATIC_ void UNLOCK_HARDWARE(i915XvMCContext *pI915XvMC)
+{
+    pI915XvMC->locked = 0;
+    DRM_UNLOCK(pI915XvMC->fd, pI915XvMC->driHwLock, 
+               pI915XvMC->hHWContext);
+    PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
+}
+
+_STATIC_ void i915_flush(i915XvMCContext *pI915XvMC, int map, int render)
+{
+    struct i915_mi_flush mi_flush;
+
+    memset(&mi_flush, 0, sizeof(mi_flush));
+    mi_flush.dw0.type = CMD_MI;
+    mi_flush.dw0.opcode = OPC_MI_FLUSH;
+    mi_flush.dw0.map_cache_invalidate = map;
+    mi_flush.dw0.render_cache_flush_inhibit = render;
+
+    intelBatchbufferData(pI915XvMC, &mi_flush, sizeof(mi_flush), 0);
+}
+
+/* for MC picture rendering */
+_STATIC_ void i915_mc_static_indirect_state_buffer(XvMCContext *context, 
+                                                   XvMCSurface *surface,
+                                                   unsigned int picture_structure,
+                                                   unsigned int flags,
+                                                   unsigned int picture_coding_type)
+{
+    struct i915_3dstate_buffer_info *buffer_info;
+    struct i915_3dstate_dest_buffer_variables *dest_buffer_variables;
+    struct i915_3dstate_dest_buffer_variables_mpeg *dest_buffer_variables_mpeg;
+    i915XvMCSurface *pI915Surface = (i915XvMCSurface *)surface->privData;
+    i915XvMCContext *pI915XvMC = (i915XvMCContext *)context->privData;
+    unsigned int w = surface->width, h = surface->height;
+
+    /* 3DSTATE_BUFFER_INFO */
+    /* DEST Y */
+    buffer_info = (struct i915_3dstate_buffer_info *)pI915XvMC->sis.map;
+    memset(buffer_info, 0, sizeof(*buffer_info));
+    buffer_info->dw0.type = CMD_3D;
+    buffer_info->dw0.opcode = OPC_3DSTATE_BUFFER_INFO;
+    buffer_info->dw0.length = 1;
+    buffer_info->dw1.aux_id = 0;
+    buffer_info->dw1.buffer_id = BUFFERID_COLOR_BACK;
+    buffer_info->dw1.fence_regs = 0;    /* disabled */ /* FIXME: tiled y for performance */
+    buffer_info->dw1.tiled_surface = 0; /* linear */
+    buffer_info->dw1.walk = TILEWALK_XMAJOR;
+    buffer_info->dw1.pitch = (pI915Surface->yStride >> 2);      /* in DWords */
+    buffer_info->dw2.base_address = (YOFFSET(pI915Surface) >> 2);    /* starting DWORD address */
+
+    /* DEST U */
+    ++buffer_info;
+    memset(buffer_info, 0, sizeof(*buffer_info));
+    buffer_info->dw0.type = CMD_3D;
+    buffer_info->dw0.opcode = OPC_3DSTATE_BUFFER_INFO;
+    buffer_info->dw0.length = 1;
+    buffer_info->dw1.aux_id = 0;
+    buffer_info->dw1.buffer_id = BUFFERID_COLOR_AUX;
+    buffer_info->dw1.fence_regs = 0;
+    buffer_info->dw1.tiled_surface = 0;
+    buffer_info->dw1.walk = TILEWALK_XMAJOR; 
+    buffer_info->dw1.pitch = (pI915Surface->uvStride >> 2);      /* in DWords */
+    buffer_info->dw2.base_address = (UOFFSET(pI915Surface) >> 2);      /* starting DWORD address */
+
+    /* DEST V */
+    ++buffer_info;
+    memset(buffer_info, 0, sizeof(*buffer_info));
+    buffer_info->dw0.type = CMD_3D;
+    buffer_info->dw0.opcode = OPC_3DSTATE_BUFFER_INFO;
+    buffer_info->dw0.length = 1;
+    buffer_info->dw1.aux_id = 1;
+    buffer_info->dw1.buffer_id = BUFFERID_COLOR_AUX;
+    buffer_info->dw1.fence_regs = 0;
+    buffer_info->dw1.tiled_surface = 0;
+    buffer_info->dw1.walk = TILEWALK_XMAJOR; 
+    buffer_info->dw1.pitch = (pI915Surface->uvStride >> 2);      /* in Dwords */
+    buffer_info->dw2.base_address = (VOFFSET(pI915Surface) >> 2);      /* starting DWORD address */
+
+    /* 3DSTATE_DEST_BUFFER_VARIABLES */
+    dest_buffer_variables = (struct i915_3dstate_dest_buffer_variables *)(++buffer_info);
+    memset(dest_buffer_variables, 0, sizeof(*dest_buffer_variables));
+    dest_buffer_variables->dw0.type = CMD_3D;
+    dest_buffer_variables->dw0.opcode = OPC_3DSTATE_DEST_BUFFER_VARIABLES;
+    dest_buffer_variables->dw0.length = 0;
+    dest_buffer_variables->dw1.dest_v_bias = 8; /* 0.5 */
+    dest_buffer_variables->dw1.dest_h_bias = 8; /* 0.5 */
+    dest_buffer_variables->dw1.color_fmt = COLORBUFFER_8BIT;
+    dest_buffer_variables->dw1.v_ls = 0;    
+    dest_buffer_variables->dw1.v_ls_offset = 0;
+
+    if ((picture_structure & XVMC_FRAME_PICTURE) == XVMC_FRAME_PICTURE) {
+        ;
+    } else if ((picture_structure & XVMC_FRAME_PICTURE) == XVMC_TOP_FIELD) {
+        dest_buffer_variables->dw1.v_ls = 1;
+    } else if ((picture_structure & XVMC_FRAME_PICTURE) == XVMC_BOTTOM_FIELD) {
+        dest_buffer_variables->dw1.v_ls = 1;
+        dest_buffer_variables->dw1.v_ls_offset = 1;
+    }
+
+    /* 3DSTATE_DEST_BUFFER_VARIABLES_MPEG */
+    dest_buffer_variables_mpeg = (struct i915_3dstate_dest_buffer_variables_mpeg *)(++dest_buffer_variables);
+    memset(dest_buffer_variables_mpeg, 0, sizeof(*dest_buffer_variables_mpeg));
+    dest_buffer_variables_mpeg->dw0.type = CMD_3D;
+    dest_buffer_variables_mpeg->dw0.opcode = OPC_3DSTATE_DEST_BUFFER_VARIABLES_MPEG;
+    dest_buffer_variables_mpeg->dw0.length = 1;
+    dest_buffer_variables_mpeg->dw1.decode_mode = MPEG_DECODE_MC;
+    dest_buffer_variables_mpeg->dw1.rcontrol = 0;               /* for MPEG-1/MPEG-2 */
+    dest_buffer_variables_mpeg->dw1.bidir_avrg_control = 0;     /* for MPEG-1/MPEG-2/MPEG-4 */ 
+    dest_buffer_variables_mpeg->dw1.abort_on_error = 1;
+    dest_buffer_variables_mpeg->dw1.intra8 = 0;         /* 16-bit formatted correction data */
+    dest_buffer_variables_mpeg->dw1.tff = 1;            
+
+    if (picture_structure & XVMC_FRAME_PICTURE) {
+        ;
+    } else if (picture_structure & XVMC_TOP_FIELD) {
+        if (flags & XVMC_SECOND_FIELD)
+            dest_buffer_variables_mpeg->dw1.tff = 0;
+        else
+            dest_buffer_variables_mpeg->dw1.tff = 1;
+    } else if (picture_structure & XVMC_BOTTOM_FIELD) {
+        if (flags & XVMC_SECOND_FIELD)
+            dest_buffer_variables_mpeg->dw1.tff = 1;
+        else
+            dest_buffer_variables_mpeg->dw1.tff = 0;
+    }
+        
+    dest_buffer_variables_mpeg->dw1.v_subsample_factor = MC_SUB_1V;
+    dest_buffer_variables_mpeg->dw1.h_subsample_factor = MC_SUB_1H;
+    dest_buffer_variables_mpeg->dw1.picture_width = (w >> 4);     /* in macroblocks */
+    dest_buffer_variables_mpeg->dw2.picture_coding_type = picture_coding_type;
+
+    /* 3DSATE_BUFFER_INFO */
+    /* CORRECTION DATA */
+    buffer_info = (struct i915_3dstate_buffer_info *)(++dest_buffer_variables_mpeg);
+    memset(buffer_info, 0, sizeof(*buffer_info));
+    buffer_info->dw0.type = CMD_3D;
+    buffer_info->dw0.opcode = OPC_3DSTATE_BUFFER_INFO;
+    buffer_info->dw0.length = 1;
+    buffer_info->dw1.aux_id = 0;
+    buffer_info->dw1.buffer_id = BUFFERID_MC_INTRA_CORR;
+    buffer_info->dw1.aux_id = 0;
+    buffer_info->dw1.fence_regs = 0; 
+    buffer_info->dw1.tiled_surface = 0; 
+    buffer_info->dw1.walk = 0;
+    buffer_info->dw1.pitch = 0;
+    buffer_info->dw2.base_address = (pI915XvMC->corrdata.offset >> 2);  /* starting DWORD address */
+}
+
+_STATIC_ void i915_mc_map_state_buffer(XvMCContext *context, 
+                                       i915XvMCSurface *privTarget,
+                                       i915XvMCSurface *privPast,
+                                       i915XvMCSurface *privFuture)
+{
+    struct i915_3dstate_map_state *map_state;
+    struct texture_map *tm;
+    i915XvMCContext *pI915XvMC = (i915XvMCContext *)context->privData;
+    unsigned int w = context->width, h = context->height;
+ 
+    /* 3DSATE_MAP_STATE: Y */
+    map_state = (struct i915_3dstate_map_state *)pI915XvMC->msb.map;
+    memset(map_state, 0, sizeof(*map_state));
+    map_state->dw0.type = CMD_3D;
+    map_state->dw0.opcode = OPC_3DSTATE_MAP_STATE;
+    map_state->dw0.retain = 1;
+    map_state->dw0.length = 6;
+    map_state->dw1.map_mask = MAP_MAP0 | MAP_MAP1;
+
+    /* texture map: Forward (Past) */
+    tm = (struct texture_map *)(++map_state);
+    memset(tm, 0, sizeof(*tm));
+    tm->tm0.v_ls_offset = 0;
+    tm->tm0.v_ls = 0;
+    tm->tm0.base_address = (YOFFSET(privPast) >> 2);
+    tm->tm1.tile_walk = TILEWALK_XMAJOR;        /* FIXME: tiled y for performace */
+    tm->tm1.tiled_surface = 0;
+    tm->tm1.utilize_fence_regs = 0;
+    tm->tm1.texel_fmt = 0;      /* 8bit */
+    tm->tm1.surface_fmt = 1;    /* 8bit */
+    tm->tm1.width = w - 1;
+    tm->tm1.height = h - 1;
+    tm->tm2.depth = 0;
+    tm->tm2.max_lod = 0;
+    tm->tm2.cube_face = 0;
+    tm->tm2.pitch = (privPast->yStride >> 2) - 1;       /* in DWords - 1 */
+
+    /* texture map: Backward (Future) */
+    ++tm;
+    memset(tm, 0, sizeof(*tm));
+    tm->tm0.v_ls_offset = 0;
+    tm->tm0.v_ls = 0;
+    tm->tm0.base_address = (YOFFSET(privFuture) >> 2);
+    tm->tm1.tile_walk = TILEWALK_XMAJOR;
+    tm->tm1.tiled_surface = 0;
+    tm->tm1.utilize_fence_regs = 0;
+    tm->tm1.texel_fmt = 0;      /* 8bit */
+    tm->tm1.surface_fmt = 1;    /* 8bit */
+    tm->tm1.width = w - 1;
+    tm->tm1.height = h - 1;
+    tm->tm2.depth = 0;
+    tm->tm2.max_lod = 0;
+    tm->tm2.cube_face = 0;
+    tm->tm2.pitch = (privFuture->yStride >> 2) - 1;
+
+    /* 3DSATE_MAP_STATE: U */
+    map_state = (struct i915_3dstate_map_state *)(++tm);
+    memset(map_state, 0, sizeof(*map_state));
+    map_state->dw0.type = CMD_3D;
+    map_state->dw0.opcode = OPC_3DSTATE_MAP_STATE;
+    map_state->dw0.retain = 1;
+    map_state->dw0.length = 6;
+    map_state->dw1.map_mask = MAP_MAP0 | MAP_MAP1;
+
+    /* texture map: Forward */
+    tm = (struct texture_map *)(++map_state);
+    memset(tm, 0, sizeof(*tm));
+    tm->tm0.v_ls_offset = 0;
+    tm->tm0.v_ls = 0;
+    tm->tm0.base_address = (UOFFSET(privPast) >> 2);
+    tm->tm1.tile_walk = TILEWALK_XMAJOR;
+    tm->tm1.tiled_surface = 0;
+    tm->tm1.utilize_fence_regs = 0;
+    tm->tm1.texel_fmt = 0;      /* 8bit */
+    tm->tm1.surface_fmt = 1;    /* 8bit */
+    tm->tm1.width = (w >> 1) - 1;
+    tm->tm1.height = (h >> 1) - 1;
+    tm->tm2.depth = 0;
+    tm->tm2.max_lod = 0;
+    tm->tm2.cube_face = 0;
+    tm->tm2.pitch = (privPast->uvStride >> 2) - 1;       /* in DWords - 1 */
+
+    /* texture map: Backward */
+    ++tm;
+    memset(tm, 0, sizeof(*tm));
+    tm->tm0.v_ls_offset = 0;
+    tm->tm0.v_ls = 0;
+    tm->tm0.base_address = (UOFFSET(privFuture) >> 2);
+    tm->tm1.tile_walk = TILEWALK_XMAJOR;
+    tm->tm1.tiled_surface = 0;
+    tm->tm1.utilize_fence_regs = 0;
+    tm->tm1.texel_fmt = 0;
+    tm->tm1.surface_fmt = 1;
+    tm->tm1.width = (w >> 1) - 1;
+    tm->tm1.height = (h >> 1) - 1;
+    tm->tm2.depth = 0;
+    tm->tm2.max_lod = 0;
+    tm->tm2.cube_face = 0;
+    tm->tm2.pitch = (privFuture->uvStride >> 2) - 1;     
+
+    /* 3DSATE_MAP_STATE: V */
+    map_state = (struct i915_3dstate_map_state *)(++tm);
+    memset(map_state, 0, sizeof(*map_state));
+    map_state->dw0.type = CMD_3D;
+    map_state->dw0.opcode = OPC_3DSTATE_MAP_STATE;
+    map_state->dw0.retain = 1;
+    map_state->dw0.length = 6;
+    map_state->dw1.map_mask = MAP_MAP0 | MAP_MAP1;
+
+    /* texture map: Forward */
+    tm = (struct texture_map *)(++map_state);
+    memset(tm, 0, sizeof(*tm));
+    tm->tm0.v_ls_offset = 0;
+    tm->tm0.v_ls = 0;
+    tm->tm0.base_address = (VOFFSET(privPast) >> 2);
+    tm->tm1.tile_walk = TILEWALK_XMAJOR;
+    tm->tm1.tiled_surface = 0;
+    tm->tm1.utilize_fence_regs = 0;
+    tm->tm1.texel_fmt = 0;
+    tm->tm1.surface_fmt = 1;
+    tm->tm1.width = (w >> 1) - 1;
+    tm->tm1.height = (h >> 1) - 1;
+    tm->tm2.depth = 0;
+    tm->tm2.max_lod = 0;
+    tm->tm2.cube_face = 0;
+    tm->tm2.pitch = (privPast->uvStride >> 2) - 1;       /* in DWords - 1 */
+
+    /* texture map: Backward */
+    ++tm;
+    memset(tm, 0, sizeof(*tm));
+    tm->tm0.v_ls_offset = 0;
+    tm->tm0.v_ls = 0;
+    tm->tm0.base_address = (VOFFSET(privFuture) >> 2);
+    tm->tm1.tile_walk = TILEWALK_XMAJOR;
+    tm->tm1.tiled_surface = 0;
+    tm->tm1.utilize_fence_regs = 0;
+    tm->tm1.texel_fmt = 0;
+    tm->tm1.surface_fmt = 1;
+    tm->tm1.width = (w >> 1) - 1;
+    tm->tm1.height = (h >> 1) - 1;
+    tm->tm2.depth = 0;
+    tm->tm2.max_lod = 0;
+    tm->tm2.cube_face = 0;
+    tm->tm2.pitch = (privFuture->uvStride >> 2) - 1;
+}
+
+_STATIC_ void i915_mc_load_sis_msb_buffers(XvMCContext *context)
+{
+    struct i915_3dstate_load_indirect *load_indirect;
+    sis_state *sis = NULL;
+    msb_state *msb = NULL;
+    i915XvMCContext *pI915XvMC = (i915XvMCContext *)context->privData;
+    void *base = NULL;
+    unsigned int size;
+    int mem_select = 1;
+
+    /* 3DSTATE_LOAD_INDIRECT */
+    size = sizeof(*load_indirect) + sizeof(*sis) + sizeof(*msb);
+    base = calloc(1, size);
+    load_indirect = (struct i915_3dstate_load_indirect *)base;
+    load_indirect->dw0.type = CMD_3D;
+    load_indirect->dw0.opcode = OPC_3DSTATE_LOAD_INDIRECT;
+    load_indirect->dw0.block_mask = BLOCK_SIS | BLOCK_MSB;
+    load_indirect->dw0.length = (size >> 2) - 2;
+
+    if (pI915XvMC->deviceID == PCI_CHIP_I915_G ||
+        pI915XvMC->deviceID == PCI_CHIP_I915_GM ||
+        pI915XvMC->deviceID == PCI_CHIP_I945_G ||
+        pI915XvMC->deviceID == PCI_CHIP_I945_GM)
+        mem_select = 0;
+
+    load_indirect->dw0.mem_select = mem_select;
+
+    /* SIS */
+    sis = (sis_state *)(++load_indirect);
+    sis->dw0.valid = 1;
+    sis->dw0.force = 1;
+    sis->dw1.length = 16; // 4 * 3 + 2 + 3 - 1
+
+    if (mem_select)
+        sis->dw0.buffer_address = (pI915XvMC->sis.offset >> 2);
+    else
+        sis->dw0.buffer_address = (pI915XvMC->sis.bus_addr >> 2);
+
+    /* MSB */
+    msb = (msb_state *)(++sis);
+    msb->dw0.valid = 1;
+    msb->dw0.force = 1;
+    msb->dw1.length = 23; // 3 * 8 - 1
+
+    if (mem_select)
+        msb->dw0.buffer_address = (pI915XvMC->msb.offset >> 2);
+    else
+        msb->dw0.buffer_address = (pI915XvMC->msb.bus_addr >> 2);
+
+    intelBatchbufferData(pI915XvMC, base, size, 0);
+    free(base);
+}
+
+_STATIC_ void i915_mc_mpeg_set_origin(XvMCContext *context, XvMCMacroBlock *mb)
+{
+    struct i915_3dmpeg_set_origin set_origin;
+    i915XvMCContext *pI915XvMC = (i915XvMCContext *)context->privData;
+
+    /* 3DMPEG_SET_ORIGIN */
+    memset(&set_origin, 0, sizeof(set_origin));
+    set_origin.dw0.type = CMD_3D;
+    set_origin.dw0.opcode = OPC_3DMPEG_SET_ORIGIN;
+    set_origin.dw0.length = 0;
+    set_origin.dw1.h_origin = mb->x;
+    set_origin.dw1.v_origin = mb->y;
+
+    intelBatchbufferData(pI915XvMC, &set_origin, sizeof(set_origin), 0);
+}
+
+_STATIC_ void i915_mc_mpeg_macroblock_ipicture(XvMCContext *context, XvMCMacroBlock *mb)
+{
+    struct i915_3dmpeg_macroblock_ipicture macroblock_ipicture;
+    i915XvMCContext *pI915XvMC = (i915XvMCContext *)context->privData;
+
+    /* 3DMPEG_MACROBLOCK_IPICTURE */
+    memset(&macroblock_ipicture, 0, sizeof(macroblock_ipicture));
+    macroblock_ipicture.dw0.type = CMD_3D;
+    macroblock_ipicture.dw0.opcode = OPC_3DMPEG_MACROBLOCK_IPICTURE;
+    macroblock_ipicture.dw0.dct_type = (mb->dct_type == XVMC_DCT_TYPE_FIELD);
+
+    intelBatchbufferData(pI915XvMC, &macroblock_ipicture, sizeof(macroblock_ipicture), 0);
+}
+
+
+_STATIC_ void i915_mc_mpeg_macroblock_0mv(XvMCContext *context, XvMCMacroBlock *mb)
+{
+    struct i915_3dmpeg_macroblock_0mv macroblock_0mv;
+    i915XvMCContext *pI915XvMC = (i915XvMCContext *)context->privData;
+
+    /* 3DMPEG_MACROBLOCK(0mv) */
+    memset(&macroblock_0mv, 0, sizeof(macroblock_0mv));
+    macroblock_0mv.header.dw0.type = CMD_3D;
+    macroblock_0mv.header.dw0.opcode = OPC_3DMPEG_MACROBLOCK;
+    macroblock_0mv.header.dw0.length = 0;
+    macroblock_0mv.header.dw1.mb_intra = 1;     /* should be 1 */ 
+    macroblock_0mv.header.dw1.forward = 0;      /* should be 0 */
+    macroblock_0mv.header.dw1.backward = 0;     /* should be 0 */
+    macroblock_0mv.header.dw1.h263_4mv = 0;     /* should be 0 */
+    macroblock_0mv.header.dw1.dct_type = (mb->dct_type == XVMC_DCT_TYPE_FIELD);
+    
+/*
+    if (!mb->coded_block_pattern)
+        macroblock_0mv.header.dw1.dct_type = XVMC_DCT_TYPE_FRAME;
+*/
+
+    macroblock_0mv.header.dw1.motion_type = 0; // (mb->motion_type & 0x3);
+    macroblock_0mv.header.dw1.vertical_field_select = 0; // mb->motion_vertical_field_select & 0xf;
+    macroblock_0mv.header.dw1.coded_block_pattern = mb->coded_block_pattern;
+    macroblock_0mv.header.dw1.skipped_macroblocks = 0;
+
+    intelBatchbufferData(pI915XvMC, &macroblock_0mv, sizeof(macroblock_0mv), 0);
+}
+
+_STATIC_ void i915_mc_mpeg_macroblock_1fbmv(XvMCContext *context, XvMCMacroBlock *mb)
+{
+    struct i915_3dmpeg_macroblock_1fbmv macroblock_1fbmv;
+    i915XvMCContext *pI915XvMC = (i915XvMCContext *)context->privData;
+    
+    /* Motion Vectors */
+    su_t fmv;
+    su_t bmv;
+
+    /* 3DMPEG_MACROBLOCK(1fbmv) */
+    memset(&macroblock_1fbmv, 0, sizeof(macroblock_1fbmv));
+    macroblock_1fbmv.header.dw0.type = CMD_3D;
+    macroblock_1fbmv.header.dw0.opcode = OPC_3DMPEG_MACROBLOCK;
+    macroblock_1fbmv.header.dw0.length = 2;
+    macroblock_1fbmv.header.dw1.mb_intra = 0;   /* should be 0 */ 
+    macroblock_1fbmv.header.dw1.forward = ((mb->macroblock_type & XVMC_MB_TYPE_MOTION_FORWARD) ? 1 : 0);
+    macroblock_1fbmv.header.dw1.backward = ((mb->macroblock_type & XVMC_MB_TYPE_MOTION_BACKWARD) ? 1 : 0);
+    macroblock_1fbmv.header.dw1.h263_4mv = 0;   /* should be 0 */
+    macroblock_1fbmv.header.dw1.dct_type = (mb->dct_type == XVMC_DCT_TYPE_FIELD);
+    
+    if (!(mb->coded_block_pattern & 0x3f))
+        macroblock_1fbmv.header.dw1.dct_type = XVMC_DCT_TYPE_FRAME;
+
+    macroblock_1fbmv.header.dw1.motion_type = (mb->motion_type & 0x03);
+    macroblock_1fbmv.header.dw1.vertical_field_select = (mb->motion_vertical_field_select & 0x0f);
+    macroblock_1fbmv.header.dw1.coded_block_pattern = mb->coded_block_pattern; 
+    macroblock_1fbmv.header.dw1.skipped_macroblocks = 0;      
+
+    fmv.s[0] = mb->PMV[0][0][0];
+    fmv.s[1] = mb->PMV[0][0][1];
+    bmv.s[0] = mb->PMV[0][1][0];
+    bmv.s[1] = mb->PMV[0][1][1];
+
+    macroblock_1fbmv.dw2 = fmv.u[0];
+    macroblock_1fbmv.dw3 = bmv.u[0];
+    
+    intelBatchbufferData(pI915XvMC, &macroblock_1fbmv, sizeof(macroblock_1fbmv), 0);
+}
+
+_STATIC_ void i915_mc_mpeg_macroblock_2fbmv(XvMCContext *context, XvMCMacroBlock *mb, unsigned int ps)
+{
+    struct i915_3dmpeg_macroblock_2fbmv macroblock_2fbmv;
+    i915XvMCContext *pI915XvMC = (i915XvMCContext *)context->privData;
+    
+    /* Motion Vectors */
+    su_t fmv;
+    su_t bmv;
+
+    /* 3DMPEG_MACROBLOCK(2fbmv) */
+    memset(&macroblock_2fbmv, 0, sizeof(macroblock_2fbmv));
+    macroblock_2fbmv.header.dw0.type = CMD_3D;
+    macroblock_2fbmv.header.dw0.opcode = OPC_3DMPEG_MACROBLOCK;
+    macroblock_2fbmv.header.dw0.length = 4;
+    macroblock_2fbmv.header.dw1.mb_intra = 0;   /* should be 0 */
+    macroblock_2fbmv.header.dw1.forward = ((mb->macroblock_type & XVMC_MB_TYPE_MOTION_FORWARD) ? 1 : 0);
+    macroblock_2fbmv.header.dw1.backward = ((mb->macroblock_type & XVMC_MB_TYPE_MOTION_BACKWARD) ? 1 : 0);
+    macroblock_2fbmv.header.dw1.h263_4mv = 0;   /* should be 0 */
+    macroblock_2fbmv.header.dw1.dct_type = (mb->dct_type == XVMC_DCT_TYPE_FIELD);
+    
+    if (!(mb->coded_block_pattern & 0x3f))
+        macroblock_2fbmv.header.dw1.dct_type = XVMC_DCT_TYPE_FRAME;
+
+    macroblock_2fbmv.header.dw1.motion_type = (mb->motion_type & 0x03);
+    macroblock_2fbmv.header.dw1.vertical_field_select = (mb->motion_vertical_field_select & 0x0f);
+    macroblock_2fbmv.header.dw1.coded_block_pattern = mb->coded_block_pattern;
+    macroblock_2fbmv.header.dw1.skipped_macroblocks = 0;
+
+    fmv.s[0] = mb->PMV[0][0][0];
+    fmv.s[1] = mb->PMV[0][0][1];
+    fmv.s[2] = mb->PMV[1][0][0];
+    fmv.s[3] = mb->PMV[1][0][1];
+    bmv.s[0] = mb->PMV[0][1][0];
+    bmv.s[1] = mb->PMV[0][1][1];
+    bmv.s[2] = mb->PMV[1][1][0];
+    bmv.s[3] = mb->PMV[1][1][1];
+
+    if ((ps & XVMC_FRAME_PICTURE) == XVMC_FRAME_PICTURE) {
+        if ((mb->motion_type & 3) == XVMC_PREDICTION_FIELD) {
+            fmv.s[0] = mb->PMV[0][0][0];
+            fmv.s[1] = mb->PMV[0][0][1] >> 1;
+            fmv.s[2] = mb->PMV[1][0][0];
+            fmv.s[3] = mb->PMV[1][0][1] >> 1;
+            bmv.s[0] = mb->PMV[0][1][0];
+            bmv.s[1] = mb->PMV[0][1][1] >> 1;
+            bmv.s[2] = mb->PMV[1][1][0];
+            bmv.s[3] = mb->PMV[1][1][1] >> 1;
+        } else if ((mb->motion_type & 3) == XVMC_PREDICTION_DUAL_PRIME) {
+            fmv.s[0] = mb->PMV[0][0][0];
+            fmv.s[1] = mb->PMV[0][0][1] >> 1;
+            fmv.s[2] = mb->PMV[0][0][0];
+            fmv.s[3] = mb->PMV[0][0][1] >> 1;  // MPEG2 MV[0][1] isn't used
+            bmv.s[0] = mb->PMV[1][0][0];
+            bmv.s[1] = mb->PMV[1][0][1] >> 1;
+            bmv.s[2] = mb->PMV[1][1][0];
+            bmv.s[3] = mb->PMV[1][1][1] >> 1;
+        }
+    }
+
+    macroblock_2fbmv.dw2 = fmv.u[0];
+    macroblock_2fbmv.dw3 = bmv.u[0];
+    macroblock_2fbmv.dw4 = fmv.u[1];
+    macroblock_2fbmv.dw5 = bmv.u[1];
+
+    intelBatchbufferData(pI915XvMC, &macroblock_2fbmv, sizeof(macroblock_2fbmv), 0);
+}
+
+/* for MC context initialization */
+_STATIC_ void i915_mc_sampler_state_buffer(XvMCContext *context)
+{
+    struct i915_3dstate_sampler_state *sampler_state;
+    struct texture_sampler *ts;
+    i915XvMCContext *pI915XvMC = (i915XvMCContext *)context->privData;
+    
+    /* 3DSATE_SAMPLER_STATE */
+    sampler_state = (struct i915_3dstate_sampler_state *)pI915XvMC->ssb.map;
+    memset(sampler_state, 0, sizeof(*sampler_state));
+    sampler_state->dw0.type = CMD_3D;
+    sampler_state->dw0.opcode = OPC_3DSTATE_SAMPLER_STATE;
+    sampler_state->dw0.length = 6;
+    sampler_state->dw1.sampler_masker = SAMPLER_SAMPLER0 | SAMPLER_SAMPLER1;
+
+    /* Sampler 0 */
+    ts = (struct texture_sampler *)(++sampler_state);
+    memset(ts, 0, sizeof(*ts));
+    ts->ts0.reverse_gamma = 0;
+    ts->ts0.planar2packet = 0;
+    ts->ts0.color_conversion = 0;
+    ts->ts0.chromakey_index = 0;
+    ts->ts0.base_level = 0;
+    ts->ts0.mip_filter = MIPFILTER_NONE;        /* NONE */
+    ts->ts0.mag_filter = MAPFILTER_LINEAR;      /* LINEAR */
+    ts->ts0.min_filter = MAPFILTER_LINEAR;      /* LINEAR */
+    ts->ts0.lod_bias = 0;       /* 0.0 */
+    ts->ts0.shadow_enable = 0;
+    ts->ts0.max_anisotropy = ANISORATIO_2;
+    ts->ts0.shadow_function = PREFILTEROP_ALWAYS;
+    ts->ts1.min_lod = 0;        /* 0.0 Maximum Mip Level */
+    ts->ts1.kill_pixel = 0;
+    ts->ts1.keyed_texture_filter = 0;
+    ts->ts1.chromakey_enable = 0;
+    ts->ts1.tcx_control = TEXCOORDMODE_CLAMP;
+    ts->ts1.tcy_control = TEXCOORDMODE_CLAMP;
+    ts->ts1.tcz_control = TEXCOORDMODE_CLAMP;
+    ts->ts1.normalized_coor = 0;
+    ts->ts1.map_index = 0;
+    ts->ts1.east_deinterlacer = 0;
+    ts->ts2.default_color = 0;
+
+    /* Sampler 1 */
+    ++ts;
+    memset(ts, 0, sizeof(*ts));
+    ts->ts0.reverse_gamma = 0;
+    ts->ts0.planar2packet = 0;
+    ts->ts0.color_conversion = 0;
+    ts->ts0.chromakey_index = 0;
+    ts->ts0.base_level = 0;
+    ts->ts0.mip_filter = MIPFILTER_NONE;        /* NONE */
+    ts->ts0.mag_filter = MAPFILTER_LINEAR;      /* LINEAR */
+    ts->ts0.min_filter = MAPFILTER_LINEAR;      /* LINEAR */
+    ts->ts0.lod_bias = 0;       /* 0.0 */
+    ts->ts0.shadow_enable = 0;
+    ts->ts0.max_anisotropy = ANISORATIO_2;
+    ts->ts0.shadow_function = PREFILTEROP_ALWAYS;
+    ts->ts1.min_lod = 0;        /* 0.0 Maximum Mip Level */
+    ts->ts1.kill_pixel = 0;
+    ts->ts1.keyed_texture_filter = 0;
+    ts->ts1.chromakey_enable = 0;
+    ts->ts1.tcx_control = TEXCOORDMODE_CLAMP;
+    ts->ts1.tcy_control = TEXCOORDMODE_CLAMP;
+    ts->ts1.tcz_control = TEXCOORDMODE_CLAMP;
+    ts->ts1.normalized_coor = 0;
+    ts->ts1.map_index = 1;
+    ts->ts1.east_deinterlacer = 0;
+    ts->ts2.default_color = 0;
+}
+
+_STATIC_ void i915_inst_arith(unsigned int *inst,
+                            unsigned int op,
+                            unsigned int dest,
+                            unsigned int mask,
+                            unsigned int saturate,
+                            unsigned int src0, unsigned int src1, unsigned int src2)
+{
+    dest = UREG(GET_UREG_TYPE(dest), GET_UREG_NR(dest));
+    *inst = (op | A0_DEST(dest) | mask | saturate | A0_SRC0(src0));
+    inst++;
+    *inst = (A1_SRC0(src0) | A1_SRC1(src1));
+    inst++;
+    *inst = (A2_SRC1(src1) | A2_SRC2(src2));
+}
+
+_STATIC_ void i915_inst_decl(unsigned int *inst, 
+                           unsigned int type,
+                           unsigned int nr,
+                           unsigned int d0_flags)
+{
+    unsigned int reg = UREG(type, nr);
+    
+    *inst = (D0_DCL | D0_DEST(reg) | d0_flags);
+    inst++;
+    *inst = D1_MBZ;
+    inst++;
+    *inst = D2_MBZ;
+}
+
+_STATIC_ void i915_inst_texld(unsigned int *inst,
+                              unsigned int op,
+                              unsigned int dest,
+                              unsigned int coord,
+                              unsigned int sampler)
+{
+   dest = UREG(GET_UREG_TYPE(dest), GET_UREG_NR(dest));
+   *inst = (op | T0_DEST(dest) | T0_SAMPLER(sampler));
+   inst++;
+   *inst = T1_ADDRESS_REG(coord);
+   inst++;
+   *inst = T2_MBZ;
+}
+
+_STATIC_ void i915_mc_pixel_shader_program_buffer(XvMCContext *context)
+{
+    struct i915_3dstate_pixel_shader_program *pixel_shader_program;
+    i915XvMCContext *pI915XvMC = (i915XvMCContext *)context->privData;
+    unsigned int *inst;
+    unsigned int dest, src0, src1, src2;
+
+    /* Shader 0 */
+    pixel_shader_program = (struct i915_3dstate_pixel_shader_program *)pI915XvMC->psp.map;
+    memset(pixel_shader_program, 0, sizeof(*pixel_shader_program));
+    pixel_shader_program->dw0.type = CMD_3D;
+    pixel_shader_program->dw0.opcode = OPC_3DSTATE_PIXEL_SHADER_PROGRAM;
+    pixel_shader_program->dw0.retain = 1;
+    pixel_shader_program->dw0.length = 2;
+    /* mov oC, c0.0000 */
+    inst = (unsigned int*)(++pixel_shader_program);
+    dest = UREG(REG_TYPE_OC, 0);
+    src0 = UREG(REG_TYPE_CONST, 0);
+    src1 = 0;
+    src2 = 0;
+    i915_inst_arith(inst, A0_MOV, dest, A0_DEST_CHANNEL_ALL,
+                    A0_DEST_SATURATE, src0, src1, src2);
+    inst += 3;
+
+    /* Shader 1 */
+    pixel_shader_program = (struct i915_3dstate_pixel_shader_program *)inst;
+    memset(pixel_shader_program, 0, sizeof(*pixel_shader_program));
+    pixel_shader_program->dw0.type = CMD_3D;
+    pixel_shader_program->dw0.opcode = OPC_3DSTATE_PIXEL_SHADER_PROGRAM;
+    pixel_shader_program->dw0.retain = 1;
+    pixel_shader_program->dw0.length = 14;
+    /* dcl t0.xy */
+    inst = (unsigned int*)(++pixel_shader_program);
+    i915_inst_decl(inst, REG_TYPE_T, T_TEX0, D0_CHANNEL_XY);
+    /* dcl t1.xy */
+    inst += 3;
+    i915_inst_decl(inst, REG_TYPE_T, T_TEX1, D0_CHANNEL_XY);
+    /* dcl_2D s0 */
+    inst += 3;
+    i915_inst_decl(inst, REG_TYPE_S, 0, D0_SAMPLE_TYPE_2D);
+    /* texld r0, t0, s0 */
+    inst += 3;
+    dest = UREG(REG_TYPE_R, 0); 
+    src0 = UREG(REG_TYPE_T, 0); /* COORD */
+    src1 = UREG(REG_TYPE_S, 0); /* SAMPLER */
+    i915_inst_texld(inst, T0_TEXLD, dest, src0, src1);
+    /* mov oC, r0 */
+    inst += 3;
+    dest = UREG(REG_TYPE_OC, 0);
+    src0 = UREG(REG_TYPE_R, 0);
+    src1 = src2 = 0;
+    i915_inst_arith(inst, A0_MOV, dest, A0_DEST_CHANNEL_ALL,
+                    A0_DEST_SATURATE, src0, src1, src2);
+    inst += 3;
+
+    /* Shader 2 */
+    pixel_shader_program = (struct i915_3dstate_pixel_shader_program *)inst;
+    memset(pixel_shader_program, 0, sizeof(*pixel_shader_program));
+    pixel_shader_program->dw0.type = CMD_3D;
+    pixel_shader_program->dw0.opcode = OPC_3DSTATE_PIXEL_SHADER_PROGRAM;
+    pixel_shader_program->dw0.retain = 1;
+    pixel_shader_program->dw0.length = 14;
+    /* dcl t2.xy */
+    inst = (unsigned int*)(++pixel_shader_program);
+    i915_inst_decl(inst, REG_TYPE_T, T_TEX2, D0_CHANNEL_XY);
+    /* dcl t3.xy */
+    inst += 3;
+    i915_inst_decl(inst, REG_TYPE_T, T_TEX3, D0_CHANNEL_XY);
+    /* dcl_2D s1 */
+    inst += 3;
+    i915_inst_decl(inst, REG_TYPE_S, 1, D0_SAMPLE_TYPE_2D);
+    /* texld r0, t2, s1 */
+    inst += 3;
+    dest = UREG(REG_TYPE_R, 0); 
+    src0 = UREG(REG_TYPE_T, 2); /* COORD */
+    src1 = UREG(REG_TYPE_S, 1); /* SAMPLER */
+    i915_inst_texld(inst, T0_TEXLD, dest, src0, src1);
+    /* mov oC, r0 */
+    inst += 3;
+    dest = UREG(REG_TYPE_OC, 0);
+    src0 = UREG(REG_TYPE_R, 0);
+    src1 = src2 = 0;
+    i915_inst_arith(inst, A0_MOV, dest, A0_DEST_CHANNEL_ALL,
+                    A0_DEST_SATURATE, src0, src1, src2);
+    inst += 3;
+
+    /* Shader 3 */
+    pixel_shader_program = (struct i915_3dstate_pixel_shader_program *)inst;
+    memset(pixel_shader_program, 0, sizeof(*pixel_shader_program));
+    pixel_shader_program->dw0.type = CMD_3D;
+    pixel_shader_program->dw0.opcode = OPC_3DSTATE_PIXEL_SHADER_PROGRAM;
+    pixel_shader_program->dw0.retain = 1;
+    pixel_shader_program->dw0.length = 29;
+    /* dcl t0.xy */
+    inst = (unsigned int*)(++pixel_shader_program);
+    i915_inst_decl(inst, REG_TYPE_T, T_TEX0, D0_CHANNEL_XY);
+    /* dcl t1.xy */
+    inst += 3;
+    i915_inst_decl(inst, REG_TYPE_T, T_TEX1, D0_CHANNEL_XY);
+    /* dcl t2.xy */
+    inst += 3;
+    i915_inst_decl(inst, REG_TYPE_T, T_TEX2, D0_CHANNEL_XY);
+    /* dcl t3.xy */
+    inst += 3;
+    i915_inst_decl(inst, REG_TYPE_T, T_TEX3, D0_CHANNEL_XY);
+    /* dcl_2D s0 */
+    inst += 3;
+    i915_inst_decl(inst, REG_TYPE_S, 0, D0_SAMPLE_TYPE_2D);
+    /* dcl_2D s1 */
+    inst += 3;
+    i915_inst_decl(inst, REG_TYPE_S, 1, D0_SAMPLE_TYPE_2D);
+    /* texld r0, t0, s0 */
+    inst += 3;
+    dest = UREG(REG_TYPE_R, 0); 
+    src0 = UREG(REG_TYPE_T, 0); /* COORD */
+    src1 = UREG(REG_TYPE_S, 0); /* SAMPLER */
+    i915_inst_texld(inst, T0_TEXLD, dest, src0, src1);
+    /* texld r1, t2, s1 */
+    inst += 3;
+    dest = UREG(REG_TYPE_R, 1); 
+    src0 = UREG(REG_TYPE_T, 2); /* COORD */
+    src1 = UREG(REG_TYPE_S, 1); /* SAMPLER */
+    i915_inst_texld(inst, T0_TEXLD, dest, src0, src1);
+    /* add r0, r0, r1 */
+    inst += 3;
+    dest = UREG(REG_TYPE_R, 0);
+    src0 = UREG(REG_TYPE_R, 0);
+    src1 = UREG(REG_TYPE_R, 1);
+    src2 = 0;
+    i915_inst_arith(inst, A0_ADD, dest, A0_DEST_CHANNEL_ALL,
+                    0 /* A0_DEST_SATURATE */, src0, src1, src2);
+    /* mul oC, r0, c0 */
+    inst += 3;
+    dest = UREG(REG_TYPE_OC, 0);
+    src0 = UREG(REG_TYPE_R, 0);
+    src1 = UREG(REG_TYPE_CONST, 0);
+    src2 = 0;
+    i915_inst_arith(inst, A0_MUL, dest, A0_DEST_CHANNEL_ALL,
+                    A0_DEST_SATURATE, src0, src1, src2);
+    inst += 3;
+}
+
+_STATIC_ void i915_mc_pixel_shader_constants_buffer(XvMCContext *context)
+{
+    struct i915_3dstate_pixel_shader_constants *pixel_shader_constants;
+    i915XvMCContext *pI915XvMC = (i915XvMCContext *)context->privData;
+    float *value;
+
+    pixel_shader_constants = (struct i915_3dstate_pixel_shader_constants *)pI915XvMC->psc.map;
+    memset(pixel_shader_constants, 0, sizeof(*pixel_shader_constants));
+    pixel_shader_constants->dw0.type = CMD_3D;
+    pixel_shader_constants->dw0.opcode = OPC_3DSTATE_PIXEL_SHADER_CONSTANTS;
+    pixel_shader_constants->dw0.length = 4;
+    pixel_shader_constants->dw1.reg_mask = REG_CR0;
+    value = (float *)(++pixel_shader_constants);
+    *(value++) = 0.5;
+    *(value++) = 0.5;
+    *(value++) = 0.5;
+    *(value++) = 0.5;
+}
+
+_STATIC_ void i915_mc_one_time_state_initialization(XvMCContext *context)
+{
+    struct i915_3dstate_load_state_immediate_1 *load_state_immediate_1 = NULL;
+    struct s3_dword *s3 = NULL;
+    struct s6_dword *s6 = NULL;
+    struct i915_3dstate_load_indirect *load_indirect = NULL;
+    dis_state *dis = NULL;
+    ssb_state *ssb = NULL;
+    psp_state *psp = NULL;
+    psc_state *psc = NULL;
+    i915XvMCContext *pI915XvMC = (i915XvMCContext *)context->privData;
+    unsigned int size;
+    void *base = NULL;
+    int mem_select = 1;
+
+    /* 3DSTATE_LOAD_STATE_IMMEDIATE_1 */
+    size = sizeof(*load_state_immediate_1) + sizeof(*s3) + sizeof(*s6);
+    base = calloc(1, size);
+    load_state_immediate_1 = (struct i915_3dstate_load_state_immediate_1 *)base;
+    load_state_immediate_1->dw0.type = CMD_3D;
+    load_state_immediate_1->dw0.opcode = OPC_3DSTATE_LOAD_STATE_IMMEDIATE_1;
+    load_state_immediate_1->dw0.load_s3 = 1;
+    load_state_immediate_1->dw0.load_s6 = 1;
+    load_state_immediate_1->dw0.length = (size >> 2) - 2;
+
+    s3 = (struct s3_dword *)(++load_state_immediate_1);
+    s3->set0_pcd = 1;
+    s3->set1_pcd = 1;
+    s3->set2_pcd = 1;
+    s3->set3_pcd = 1;
+    s3->set4_pcd = 1;
+    s3->set5_pcd = 1;
+    s3->set6_pcd = 1;
+    s3->set7_pcd = 1;
+
+    s6 = (struct s6_dword *)(++s3);
+    s6->alpha_test_enable = 0;
+    s6->alpha_test_function = 0;
+    s6->alpha_reference_value = 0;
+    s6->depth_test_enable = 1;
+    s6->depth_test_function = 0;
+    s6->color_buffer_blend = 0;
+    s6->color_blend_function = 0;
+    s6->src_blend_factor = 1;
+    s6->dest_blend_factor = 1;
+    s6->depth_buffer_write = 0;
+    s6->color_buffer_write = 1;
+    s6->triangle_pv = 0;
+
+    intelBatchbufferData(pI915XvMC, base, size, 0);
+    free(base);
+
+    /* 3DSTATE_LOAD_INDIRECT */
+    size = sizeof(*load_indirect) + sizeof(*dis) + sizeof(*ssb) + sizeof(*psp) + sizeof(*psc);
+    base = calloc(1, size);
+    load_indirect = (struct i915_3dstate_load_indirect *)base;
+    load_indirect->dw0.type = CMD_3D;
+    load_indirect->dw0.opcode = OPC_3DSTATE_LOAD_INDIRECT;
+    load_indirect->dw0.block_mask = BLOCK_DIS | BLOCK_SSB | BLOCK_PSP | BLOCK_PSC;
+    load_indirect->dw0.length = (size >> 2) - 2;
+
+    if (pI915XvMC->deviceID == PCI_CHIP_I915_G ||
+        pI915XvMC->deviceID == PCI_CHIP_I915_GM ||
+        pI915XvMC->deviceID == PCI_CHIP_I945_G ||
+        pI915XvMC->deviceID == PCI_CHIP_I945_GM)
+        mem_select = 0;
+
+    load_indirect->dw0.mem_select = mem_select;
+
+    /* DIS */
+    dis = (dis_state *)(++load_indirect);
+    dis->dw0.valid = 0;
+    dis->dw0.reset = 0;
+    dis->dw0.buffer_address = 0;
+
+    /* SSB */
+    ssb = (ssb_state *)(++dis);
+    ssb->dw0.valid = 1;
+    ssb->dw0.force = 1;
+    ssb->dw1.length = 7; /* 8 - 1 */
+
+    if (mem_select)
+        ssb->dw0.buffer_address = (pI915XvMC->ssb.offset >> 2);
+    else
+        ssb->dw0.buffer_address = (pI915XvMC->ssb.bus_addr >> 2);
+
+    /* PSP */
+    psp = (psp_state *)(++ssb);
+    psp->dw0.valid = 1;
+    psp->dw0.force = 1;
+    psp->dw1.length = 66; /* 4 + 16 + 16 + 31 - 1 */
+    
+    if (mem_select)
+        psp->dw0.buffer_address = (pI915XvMC->psp.offset >> 2);
+    else
+        psp->dw0.buffer_address = (pI915XvMC->psp.bus_addr >> 2);
+
+    /* PSC */
+    psc = (psc_state *)(++psp);
+    psc->dw0.valid = 1;
+    psc->dw0.force = 1;
+    psc->dw1.length = 5; /* 6 - 1 */
+
+    if (mem_select)
+        psc->dw0.buffer_address = (pI915XvMC->psc.offset >> 2);
+    else
+        psc->dw0.buffer_address = (pI915XvMC->psc.bus_addr >> 2);
+
+    intelBatchbufferData(pI915XvMC, base, size, 0);
+    free(base);
+}
+
+_STATIC_ void i915_mc_invalidate_subcontext_buffers(XvMCContext *context, unsigned int mask)
+{
+    struct i915_3dstate_load_indirect *load_indirect = NULL;
+    sis_state *sis = NULL;
+    dis_state *dis = NULL;
+    ssb_state *ssb = NULL;
+    msb_state *msb = NULL;
+    psp_state *psp = NULL;
+    psc_state *psc = NULL;
+    i915XvMCContext *pI915XvMC = (i915XvMCContext *)context->privData;
+    unsigned int size;
+    void *base = NULL, *ptr = NULL;
+
+    size = sizeof(*load_indirect);
+    if (mask & BLOCK_SIS)
+        size += sizeof(*sis);
+    if (mask & BLOCK_DIS)
+        size += sizeof(*dis);
+    if (mask & BLOCK_SSB)
+        size += sizeof(*ssb);
+    if (mask & BLOCK_MSB)
+        size += sizeof(*msb);
+    if (mask & BLOCK_PSP)
+        size += sizeof(*psp);
+    if (mask & BLOCK_PSC)
+        size += sizeof(*psc);
+
+    if (size == sizeof(*load_indirect)) {
+        printf("There must be at least one bit set\n");
+        return;
+    }
+
+    /* 3DSTATE_LOAD_INDIRECT */
+    base = calloc(1, size);
+    load_indirect = (struct i915_3dstate_load_indirect *)base;
+    load_indirect->dw0.type = CMD_3D;
+    load_indirect->dw0.opcode = OPC_3DSTATE_LOAD_INDIRECT;
+
+    if (pI915XvMC->deviceID == PCI_CHIP_I915_G ||
+        pI915XvMC->deviceID == PCI_CHIP_I915_GM ||
+        pI915XvMC->deviceID == PCI_CHIP_I945_G ||
+        pI915XvMC->deviceID == PCI_CHIP_I945_GM)
+        load_indirect->dw0.mem_select = 0;
+    else
+        load_indirect->dw0.mem_select = 1;
+
+    load_indirect->dw0.block_mask = mask;
+    load_indirect->dw0.length = (size >> 2) - 2;
+    ptr = ++load_indirect;
+
+    /* SIS */
+    if (mask & BLOCK_SIS) {
+        sis = (sis_state *)ptr;
+        sis->dw0.valid = 0;
+        sis->dw0.buffer_address = 0;
+        sis->dw1.length = 0;
+        ptr = ++sis;
+    }
+
+    /* DIS */
+    if (mask & BLOCK_DIS) {
+        dis = (dis_state *)ptr;
+        dis->dw0.valid = 0;
+        dis->dw0.reset = 0;
+        dis->dw0.buffer_address = 0;
+        ptr = ++dis;
+    }
+
+    /* SSB */
+    if (mask & BLOCK_SSB) {
+        ssb = (ssb_state *)ptr;
+        ssb->dw0.valid = 0;
+        ssb->dw0.buffer_address = 0;
+        ssb->dw1.length = 0;
+        ptr = ++ssb;
+    }
+
+    /* MSB */
+    if (mask & BLOCK_MSB) {
+        msb = (msb_state *)ptr;
+        msb->dw0.valid = 0;
+        msb->dw0.buffer_address = 0;
+        msb->dw1.length = 0;
+        ptr = ++msb;
+    }
+
+    /* PSP */
+    if (mask & BLOCK_PSP) {
+        psp = (psp_state *)ptr;
+        psp->dw0.valid = 0;
+        psp->dw0.buffer_address = 0;
+        psp->dw1.length = 0;
+        ptr = ++psp;
+    }
+
+    /* PSC */
+    if (mask & BLOCK_PSC) {
+        psc = (psc_state *)ptr;
+        psc->dw0.valid = 0;
+        psc->dw0.buffer_address = 0;
+        psc->dw1.length = 0;
+        ptr = ++psc;
+    }
+
+    intelBatchbufferData(pI915XvMC, base, size, 0);
+    free(base);
+}
+
+_STATIC_ int i915_xvmc_map_buffers(i915XvMCContext *pI915XvMC)
+{
+    if (drmMap(pI915XvMC->fd,
+               pI915XvMC->sis.handle,
+               pI915XvMC->sis.size,
+               (drmAddress *)&pI915XvMC->sis.map) != 0) {
+        return -1;
+    }
+
+    if (drmMap(pI915XvMC->fd,
+               pI915XvMC->ssb.handle,
+               pI915XvMC->ssb.size,
+               (drmAddress *)&pI915XvMC->ssb.map) != 0) {
+        return -1;
+    }
+
+    if (drmMap(pI915XvMC->fd,
+               pI915XvMC->msb.handle,
+               pI915XvMC->msb.size,
+               (drmAddress *)&pI915XvMC->msb.map) != 0) {
+        return -1;
+    }
+
+    if (drmMap(pI915XvMC->fd,
+               pI915XvMC->psp.handle,
+               pI915XvMC->psp.size,
+               (drmAddress *)&pI915XvMC->psp.map) != 0) {
+        return -1;
+    }
+
+    if (drmMap(pI915XvMC->fd,
+               pI915XvMC->psc.handle,
+               pI915XvMC->psc.size,
+               (drmAddress *)&pI915XvMC->psc.map) != 0) {
+        return -1;
+    }
+
+    if (drmMap(pI915XvMC->fd,
+               pI915XvMC->corrdata.handle,
+               pI915XvMC->corrdata.size,
+               (drmAddress *)&pI915XvMC->corrdata.map) != 0) {
+        return -1;
+    }
+    
+    if (drmMap(pI915XvMC->fd,
+               pI915XvMC->batchbuffer.handle,
+               pI915XvMC->batchbuffer.size,
+               (drmAddress *)&pI915XvMC->batchbuffer.map) != 0) {
+        return -1;
+    }
+
+    return 0;
+}
+
+_STATIC_ void i915_xvmc_unmap_buffers(i915XvMCContext *pI915XvMC)
+{
+    if (pI915XvMC->sis.map) {
+        drmUnmap(pI915XvMC->sis.map, pI915XvMC->sis.size);
+        pI915XvMC->sis.map = NULL;
+    }
+
+    if (pI915XvMC->ssb.map) {
+        drmUnmap(pI915XvMC->ssb.map, pI915XvMC->ssb.size);
+        pI915XvMC->ssb.map = NULL;
+    }
+
+    if (pI915XvMC->msb.map) {
+        drmUnmap(pI915XvMC->msb.map, pI915XvMC->msb.size);
+        pI915XvMC->msb.map = NULL;
+    }
+
+    if (pI915XvMC->psp.map) {
+        drmUnmap(pI915XvMC->psp.map, pI915XvMC->psp.size);
+        pI915XvMC->psp.map = NULL;
+    }
+
+    if (pI915XvMC->psc.map) {
+        drmUnmap(pI915XvMC->psc.map, pI915XvMC->psc.size);
+        pI915XvMC->psc.map = NULL;
+    }
+
+    if (pI915XvMC->corrdata.map) {
+        drmUnmap(pI915XvMC->corrdata.map, pI915XvMC->corrdata.size);
+        pI915XvMC->corrdata.map = NULL;
+    }
+
+    if (pI915XvMC->batchbuffer.map) {
+        drmUnmap(pI915XvMC->batchbuffer.map, pI915XvMC->batchbuffer.size);
+        pI915XvMC->batchbuffer.map = NULL;
+    }
+}
+
+/*
+ * Video post processing 
+ */
+_STATIC_ void i915_yuv2rgb_map_state_buffer(XvMCSurface *target_surface)
+{
+    struct i915_3dstate_map_state *map_state;
+    struct texture_map *tm;
+    i915XvMCSurface *privTarget = NULL;
+    i915XvMCContext *pI915XvMC = NULL;
+    unsigned int w = target_surface->width, h = target_surface->height;
+
+    privTarget = (i915XvMCSurface *)target_surface->privData;
+    pI915XvMC = (i915XvMCContext *)privTarget->privContext;
+    /* 3DSATE_MAP_STATE */
+    map_state = (struct i915_3dstate_map_state *)pI915XvMC->msb.map;
+    memset(map_state, 0, sizeof(*map_state));
+    map_state->dw0.type = CMD_3D;
+    map_state->dw0.opcode = OPC_3DSTATE_MAP_STATE;
+    map_state->dw0.retain = 0;
+    map_state->dw0.length = 9;
+    map_state->dw1.map_mask = MAP_MAP0 | MAP_MAP1 | MAP_MAP2;
+
+    /* texture map 0: V Plane */
+    tm = (struct texture_map *)(++map_state);
+    memset(tm, 0, sizeof(*tm));
+    tm->tm0.v_ls_offset = 0;
+    tm->tm0.v_ls = 0;
+    tm->tm0.base_address = VOFFSET(privTarget);
+    tm->tm1.tile_walk = TILEWALK_XMAJOR;
+    tm->tm1.tiled_surface = 0;
+    tm->tm1.utilize_fence_regs = 1;
+    tm->tm1.texel_fmt = 0;
+    tm->tm1.surface_fmt = 1;
+    tm->tm1.width = (w >> 1) - 1;
+    tm->tm1.height = (h >> 1) - 1;
+    tm->tm2.depth = 0;
+    tm->tm2.max_lod = 0;
+    tm->tm2.cube_face = 0;
+    tm->tm2.pitch = (privTarget->uvStride >> 2) - 1;    /* in DWords - 1 */
+
+    /* texture map 1: Y Plane */
+    ++tm;
+    memset(tm, 0, sizeof(*tm));
+    tm->tm0.v_ls_offset = 0;
+    tm->tm0.v_ls = 0;
+    tm->tm0.base_address = YOFFSET(privTarget);
+    tm->tm1.tile_walk = TILEWALK_XMAJOR;
+    tm->tm1.tiled_surface = 0;
+    tm->tm1.utilize_fence_regs = 1;
+    tm->tm1.texel_fmt = 0;
+    tm->tm1.surface_fmt = 1;
+    tm->tm1.width = w - 1;
+    tm->tm1.height = h - 1;
+    tm->tm2.depth = 0;
+    tm->tm2.max_lod = 0;
+    tm->tm2.cube_face = 0;
+    tm->tm2.pitch = (privTarget->yStride >> 2) - 1;     /* in DWords - 1 */
+
+    /* texture map 2: U Plane */
+    ++tm;
+    memset(tm, 0, sizeof(*tm));
+    tm->tm0.v_ls_offset = 0;
+    tm->tm0.v_ls = 0;
+    tm->tm0.base_address = UOFFSET(privTarget);
+    tm->tm1.tile_walk = TILEWALK_XMAJOR;
+    tm->tm1.tiled_surface = 0;
+    tm->tm1.utilize_fence_regs = 1;
+    tm->tm1.texel_fmt = 0;
+    tm->tm1.surface_fmt = 1;
+    tm->tm1.width = (w >> 1) - 1;
+    tm->tm1.height = (h >> 1) - 1;
+    tm->tm2.depth = 0;
+    tm->tm2.max_lod = 0;
+    tm->tm2.cube_face = 0;
+    tm->tm2.pitch = (privTarget->uvStride >> 2) - 1;    /* in DWords - 1 */
+}
+
+_STATIC_ void i915_yuv2rgb_sampler_state_buffer(XvMCSurface *surface)
+{
+    struct i915_3dstate_sampler_state *sampler_state;
+    struct texture_sampler *ts;
+    i915XvMCSurface *privSurface = (i915XvMCSurface *)surface->privData;
+    i915XvMCContext *pI915XvMC = (i915XvMCContext *)privSurface->privContext;
+    
+    /* 3DSATE_SAMPLER_STATE */
+    sampler_state = (struct i915_3dstate_sampler_state *)pI915XvMC->ssb.map;
+    memset(sampler_state, 0, sizeof(*sampler_state));
+    sampler_state->dw0.type = CMD_3D;
+    sampler_state->dw0.opcode = OPC_3DSTATE_SAMPLER_STATE;
+    sampler_state->dw0.length = 9;
+    sampler_state->dw1.sampler_masker = SAMPLER_SAMPLER0 | SAMPLER_SAMPLER1 | SAMPLER_SAMPLER2;
+
+    /* Sampler 0 */
+    ts = (struct texture_sampler *)(++sampler_state);
+    memset(ts, 0, sizeof(*ts));
+    ts->ts0.reverse_gamma = 0;
+    ts->ts0.planar2packet = 1;
+    ts->ts0.color_conversion = 1;
+    ts->ts0.chromakey_index = 0;
+    ts->ts0.base_level = 0;
+    ts->ts0.mip_filter = MIPFILTER_NONE;        /* NONE */
+    ts->ts0.mag_filter = MAPFILTER_LINEAR;      /* LINEAR */
+    ts->ts0.min_filter = MAPFILTER_LINEAR;      /* LINEAR */
+    ts->ts0.lod_bias = 0;
+    ts->ts0.shadow_enable = 0;
+    ts->ts0.max_anisotropy = ANISORATIO_2;
+    ts->ts0.shadow_function = PREFILTEROP_ALWAYS;
+    ts->ts1.min_lod = 0;        /* Maximum Mip Level */
+    ts->ts1.kill_pixel = 0;
+    ts->ts1.keyed_texture_filter = 0;
+    ts->ts1.chromakey_enable = 0;
+    ts->ts1.tcx_control = TEXCOORDMODE_CLAMP;
+    ts->ts1.tcy_control = TEXCOORDMODE_CLAMP;
+    ts->ts1.tcz_control = TEXCOORDMODE_CLAMP;
+    ts->ts1.normalized_coor = 0;
+    ts->ts1.map_index = 0;
+    ts->ts1.east_deinterlacer = 0;
+    ts->ts2.default_color = 0;
+
+    /* Sampler 1 */
+    ++ts;
+    memset(ts, 0, sizeof(*ts));
+    ts->ts0.reverse_gamma = 0;
+    ts->ts0.planar2packet = 1;
+    ts->ts0.color_conversion = 1;
+    ts->ts0.chromakey_index = 0;
+    ts->ts0.base_level = 0;
+    ts->ts0.mip_filter = MIPFILTER_NONE;        /* NONE */
+    ts->ts0.mag_filter = MAPFILTER_LINEAR;      /* LINEAR */
+    ts->ts0.min_filter = MAPFILTER_LINEAR;      /* LINEAR */
+    ts->ts0.lod_bias = 0;
+    ts->ts0.shadow_enable = 0;
+    ts->ts0.max_anisotropy = ANISORATIO_2;
+    ts->ts0.shadow_function = PREFILTEROP_ALWAYS;
+    ts->ts1.min_lod = 0;        /* Maximum Mip Level */
+    ts->ts1.kill_pixel = 0;
+    ts->ts1.keyed_texture_filter = 0;
+    ts->ts1.chromakey_enable = 0;
+    ts->ts1.tcx_control = TEXCOORDMODE_CLAMP;
+    ts->ts1.tcy_control = TEXCOORDMODE_CLAMP;
+    ts->ts1.tcz_control = TEXCOORDMODE_CLAMP;
+    ts->ts1.normalized_coor = 0;
+    ts->ts1.map_index = 1;
+    ts->ts1.east_deinterlacer = 0;
+    ts->ts2.default_color = 0;
+
+    /* Sampler 2 */
+    ++ts;
+    memset(ts, 0, sizeof(*ts));
+    ts->ts0.reverse_gamma = 0;
+    ts->ts0.planar2packet = 1;
+    ts->ts0.color_conversion = 1;
+    ts->ts0.chromakey_index = 0;
+    ts->ts0.base_level = 0;
+    ts->ts0.mip_filter = MIPFILTER_NONE;        /* NONE */
+    ts->ts0.mag_filter = MAPFILTER_LINEAR;      /* LINEAR */
+    ts->ts0.min_filter = MAPFILTER_LINEAR;      /* LINEAR */
+    ts->ts0.lod_bias = 0;
+    ts->ts0.shadow_enable = 0;
+    ts->ts0.max_anisotropy = ANISORATIO_2;
+    ts->ts0.shadow_function = PREFILTEROP_ALWAYS;
+    ts->ts1.min_lod = 0;        /* Maximum Mip Level */
+    ts->ts1.kill_pixel = 0;
+    ts->ts1.keyed_texture_filter = 0;
+    ts->ts1.chromakey_enable = 0;
+    ts->ts1.tcx_control = TEXCOORDMODE_CLAMP;
+    ts->ts1.tcy_control = TEXCOORDMODE_CLAMP;
+    ts->ts1.tcz_control = TEXCOORDMODE_CLAMP;
+    ts->ts1.normalized_coor = 0;
+    ts->ts1.map_index = 2;
+    ts->ts1.east_deinterlacer = 0;
+    ts->ts2.default_color = 0;
+}
+
+_STATIC_ void i915_yuv2rgb_static_indirect_state_buffer(XvMCSurface *surface,
+                                                      unsigned int dstaddr, 
+                                                      int dstpitch)
+{
+    struct i915_3dstate_buffer_info *buffer_info;
+    struct i915_3dstate_dest_buffer_variables *dest_buffer_variables;
+    i915XvMCSurface *privSurface = (i915XvMCSurface *)surface->privData;
+    i915XvMCContext *pI915XvMC = (i915XvMCContext *)privSurface->privContext;
+
+    /* 3DSTATE_BUFFER_INFO */
+    buffer_info = (struct i915_3dstate_buffer_info *)pI915XvMC->sis.map;
+    memset(buffer_info, 0, sizeof(*buffer_info));
+    buffer_info->dw0.type = CMD_3D;
+    buffer_info->dw0.opcode = OPC_3DSTATE_BUFFER_INFO;
+    buffer_info->dw0.length = 1;
+    buffer_info->dw1.aux_id = 0;
+    buffer_info->dw1.buffer_id = BUFFERID_COLOR_BACK;
+    buffer_info->dw1.fence_regs = 1;   
+    buffer_info->dw1.tiled_surface = 0;   /* linear */
+    buffer_info->dw1.walk = TILEWALK_XMAJOR;
+    buffer_info->dw1.pitch = dstpitch;
+    buffer_info->dw2.base_address = dstaddr;
+
+    /* 3DSTATE_DEST_BUFFER_VARIABLES */
+    dest_buffer_variables = (struct i915_3dstate_dest_buffer_variables *)(++buffer_info);
+    memset(dest_buffer_variables, 0, sizeof(*dest_buffer_variables));
+    dest_buffer_variables->dw0.type = CMD_3D;
+    dest_buffer_variables->dw0.opcode = OPC_3DSTATE_DEST_BUFFER_VARIABLES;
+    dest_buffer_variables->dw0.length = 0;
+    dest_buffer_variables->dw1.dest_v_bias = 8; /* FIXME 0x1000 .5 ??? */
+    dest_buffer_variables->dw1.dest_h_bias = 8;
+    dest_buffer_variables->dw1.color_fmt = COLORBUFFER_A8R8G8B8;  /* FIXME */
+}
+
+_STATIC_ void i915_yuv2rgb_pixel_shader_program_buffer(XvMCSurface *surface)
+{
+    struct i915_3dstate_pixel_shader_program *pixel_shader_program;
+    i915XvMCSurface *privSurface = (i915XvMCSurface *)surface->privData;
+    i915XvMCContext *pI915XvMC = (i915XvMCContext *)privSurface->privContext;
+    unsigned int *inst;
+    unsigned int dest, src0, src1;
+
+    /* Shader 0 */
+    pixel_shader_program = (struct i915_3dstate_pixel_shader_program *)pI915XvMC->psp.map;
+    memset(pixel_shader_program, 0, sizeof(*pixel_shader_program));
+    pixel_shader_program->dw0.type = CMD_3D;
+    pixel_shader_program->dw0.opcode = OPC_3DSTATE_PIXEL_SHADER_PROGRAM;
+    pixel_shader_program->dw0.retain = 0;
+    pixel_shader_program->dw0.length = 23;
+    /* dcl      t0.xy */
+    inst = (unsigned int*)(++pixel_shader_program);
+    i915_inst_decl(inst, REG_TYPE_T, T_TEX0, D0_CHANNEL_XY);
+    /* dcl         t1.xy */
+    inst += 3;
+    i915_inst_decl(inst, REG_TYPE_T, T_TEX1, D0_CHANNEL_XY);
+    /* dcl_2D   s0 */
+    inst += 3;
+    i915_inst_decl(inst, REG_TYPE_S, 0, D0_SAMPLE_TYPE_2D);
+    /* dcl_2D   s1 */
+    inst += 3;
+    i915_inst_decl(inst, REG_TYPE_S, 1, D0_SAMPLE_TYPE_2D);
+    /* dcl_2D   s2 */
+    inst += 3;
+    i915_inst_decl(inst, REG_TYPE_S, 2, D0_SAMPLE_TYPE_2D);
+    /* texld    r0 t1 s0 */
+    inst += 3;
+    dest = UREG(REG_TYPE_R, 0); 
+    src0 = UREG(REG_TYPE_T, 1); /* COORD */
+    src1 = UREG(REG_TYPE_S, 0); /* SAMPLER */
+    i915_inst_texld(inst, T0_TEXLD, dest, src0, src1);
+    /* texld    r0 t0 s1 */
+    inst += 3;
+    dest = UREG(REG_TYPE_R, 0); 
+    src0 = UREG(REG_TYPE_T, 0); /* COORD */
+    src1 = UREG(REG_TYPE_S, 1); /* SAMPLER */
+    i915_inst_texld(inst, T0_TEXLD, dest, src0, src1);
+    /* texld    oC t1 s2 */
+    inst += 3;
+    dest = UREG(REG_TYPE_OC, 0);
+    src0 = UREG(REG_TYPE_T, 1); /* COORD */
+    src1 = UREG(REG_TYPE_S, 2); /* SAMPLER */
+    i915_inst_texld(inst, T0_TEXLD, dest, src0, src1);
+}
+
+_STATIC_ void i915_yuv2rgb_proc(XvMCSurface *surface)
+{
+    i915XvMCSurface *privSurface = (i915XvMCSurface *)surface->privData;
+    i915XvMCContext *pI915XvMC = (i915XvMCContext *)privSurface->privContext;
+    struct i915_3dstate_load_state_immediate_1 *load_state_immediate_1 = NULL;
+    struct s2_dword *s2 = NULL;
+    struct s3_dword *s3 = NULL;
+    struct s4_dword *s4 = NULL;
+    struct s5_dword *s5 = NULL;
+    struct s6_dword *s6 = NULL;
+    struct s7_dword *s7 = NULL;
+    struct i915_3dstate_scissor_rectangle scissor_rectangle;
+    struct i915_3dstate_load_indirect *load_indirect = NULL;
+    sis_state *sis = NULL;
+    ssb_state *ssb = NULL;
+    msb_state *msb = NULL;
+    psp_state *psp = NULL;
+    struct i915_3dprimitive *_3dprimitive = NULL;
+    struct vertex_data *vd = NULL;
+    unsigned int size;
+    void *base = NULL;
+
+    /* 3DSTATE_LOAD_STATE_IMMEDIATE_1 */
+    size = sizeof(*load_state_immediate_1) + sizeof(*s2) + sizeof(*s3) +
+        sizeof(*s4) + sizeof(*s5) + sizeof(*s6) + sizeof(*s7);
+    base = calloc(1, size);
+    load_state_immediate_1 = (struct i915_3dstate_load_state_immediate_1 *)base;
+    load_state_immediate_1->dw0.type = CMD_3D;
+    load_state_immediate_1->dw0.opcode = OPC_3DSTATE_LOAD_STATE_IMMEDIATE_1;
+    load_state_immediate_1->dw0.load_s2 = 1;
+    load_state_immediate_1->dw0.load_s3 = 1;
+    load_state_immediate_1->dw0.load_s4 = 1;
+    load_state_immediate_1->dw0.load_s5 = 1;
+    load_state_immediate_1->dw0.load_s6 = 1;
+    load_state_immediate_1->dw0.load_s7 = 1;
+    load_state_immediate_1->dw0.length = 5;
+
+    s2 = (struct s2_dword *)(++load_state_immediate_1);
+    s2->set0_texcoord_fmt = TEXCOORDFMT_2FP;
+    s2->set1_texcoord_fmt = TEXCOORDFMT_2FP;
+    s2->set2_texcoord_fmt = TEXCOORDFMT_NOT_PRESENT;
+    s2->set3_texcoord_fmt = TEXCOORDFMT_NOT_PRESENT;
+    s2->set4_texcoord_fmt = TEXCOORDFMT_NOT_PRESENT;
+    s2->set5_texcoord_fmt = TEXCOORDFMT_NOT_PRESENT;
+    s2->set6_texcoord_fmt = TEXCOORDFMT_NOT_PRESENT;
+    s2->set7_texcoord_fmt = TEXCOORDFMT_NOT_PRESENT;
+
+    s3 = (struct s3_dword *)(++s2);
+    s4 = (struct s4_dword *)(++s3);
+    s4->position_mask = VERTEXHAS_XY;
+    s4->cull_mode = CULLMODE_NONE;
+    s4->color_shade_mode = SHADEMODE_FLAT;
+    s4->specular_shade_mode = SHADEMODE_FLAT;
+    s4->fog_shade_mode = SHADEMODE_FLAT;
+    s4->alpha_shade_mode = SHADEMODE_FLAT;
+    s4->line_width = 0x2;     /* FIXME: 1.0??? */
+    s4->point_width = 0x1; 
+
+    s5 = (struct s5_dword *)(++s4);
+    s6 = (struct s6_dword *)(++s5);
+    s6->src_blend_factor = 1;
+    s6->dest_blend_factor = 1;
+    s6->color_buffer_write = 1;
+
+    s7 = (struct s7_dword *)(++s6);
+    intelBatchbufferData(pI915XvMC, base, size, 0);
+    free(base);
+
+    /* 3DSTATE_3DSTATE_SCISSOR_RECTANGLE */
+    scissor_rectangle.dw0.type = CMD_3D;
+    scissor_rectangle.dw0.opcode = OPC_3DSTATE_SCISSOR_RECTANGLE;
+    scissor_rectangle.dw0.length = 1;
+    scissor_rectangle.dw1.min_x = 0;
+    scissor_rectangle.dw1.min_y = 0;
+    scissor_rectangle.dw2.max_x = 2047;
+    scissor_rectangle.dw2.max_y = 2047;
+    intelBatchbufferData(pI915XvMC, &scissor_rectangle, sizeof(scissor_rectangle), 0);
+
+    /* 3DSTATE_LOAD_INDIRECT */
+    size = sizeof(*load_indirect) + sizeof(*sis) + sizeof(*ssb) + sizeof(*msb) + sizeof(*psp);
+    base = calloc(1, size);
+    load_indirect = (struct i915_3dstate_load_indirect *)base;
+    load_indirect->dw0.type = CMD_3D;
+    load_indirect->dw0.opcode = OPC_3DSTATE_LOAD_INDIRECT;
+    load_indirect->dw0.mem_select = 1;  /* Bearlake only */
+    load_indirect->dw0.block_mask = BLOCK_SIS | BLOCK_SSB | BLOCK_MSB | BLOCK_PSP;
+    load_indirect->dw0.length = 7;
+
+    /* SIS */
+    sis = (sis_state *)(++load_indirect);
+    sis->dw0.valid = 1;
+    sis->dw0.buffer_address = pI915XvMC->sis.offset;
+    sis->dw1.length = ((sizeof(struct i915_3dstate_buffer_info) +
+                        sizeof(struct i915_3dstate_dest_buffer_variables)) >> 2) - 1;
+
+    /* SSB */
+    ssb = (ssb_state *)(++sis);
+    ssb->dw0.valid = 1;
+    ssb->dw0.buffer_address = pI915XvMC->ssb.offset;
+    ssb->dw1.length = ((sizeof(struct i915_3dstate_sampler_state) + 
+                        sizeof(struct texture_sampler) * 3) >> 2) - 1;
+
+    /* MSB */
+    msb = (msb_state *)(++ssb);
+    msb->dw0.valid = 1;
+    msb->dw0.buffer_address = pI915XvMC->msb.offset;
+    msb->dw1.length = ((sizeof(struct i915_3dstate_map_state) + 
+                        sizeof(struct texture_map) * 3) >> 2) - 1;
+
+    /* PSP */
+    psp = (psp_state *)(++msb);
+    psp->dw0.valid = 1;
+    psp->dw0.buffer_address = pI915XvMC->psp.offset;
+    psp->dw1.length = ((sizeof(struct i915_3dstate_pixel_shader_program) +
+                        sizeof(union shader_inst)) >> 2) - 1;
+
+    intelBatchbufferData(pI915XvMC, base, size, 0);
+    free(base);
+
+    /* 3DPRIMITIVE */
+    size = sizeof(*_3dprimitive) + sizeof(*vd) * 3;
+    base = calloc(1, size);
+    _3dprimitive = (struct i915_3dprimitive *)base;
+    _3dprimitive->dw0.inline_prim.type = CMD_3D;
+    _3dprimitive->dw0.inline_prim.opcode = OPC_3DPRIMITIVE;
+    _3dprimitive->dw0.inline_prim.vertex_location = VERTEX_INLINE;
+    _3dprimitive->dw0.inline_prim.prim = PRIM_RECTLIST;
+    _3dprimitive->dw0.inline_prim.length = size - 2;
+
+    vd = (struct vertex_data *)(++_3dprimitive);
+    vd->x = 0;          /* FIXME!!! */
+    vd->x = 0;          /* FIXME */
+    vd->tc0.tcx = 0;
+    vd->tc0.tcy = 0;
+    vd->tc1.tcx = 0;
+    vd->tc1.tcy = 0;
+
+    ++vd;
+    vd->x = 0;          /* FIXME!!! */
+    vd->x = 0;          /* FIXME */
+    vd->tc0.tcx = 0;
+    vd->tc0.tcy = 0;
+    vd->tc1.tcx = 0;
+    vd->tc1.tcy = 0;
+
+    ++vd;
+    vd->x = 0;          /* FIXME!!! */
+    vd->x = 0;          /* FIXME */
+    vd->tc0.tcx = 0;
+    vd->tc0.tcy = 0;
+    vd->tc1.tcx = 0;
+    vd->tc1.tcy = 0;
+
+    intelBatchbufferData(pI915XvMC, base, size, 0);
+    free(base);
+}
+
+/***************************************************************************
+// Function: i915_release_resource
+// Description:
+***************************************************************************/
+_STATIC_ void i915_release_resource(Display *display, XvMCContext *context)
+{
+    i915XvMCContext *pI915XvMC;
+
+    if (!display || !context)
+        return;
+
+    if (!(pI915XvMC = context->privData))
+        return;
+
+    pI915XvMC->ref--;
+    i915_xvmc_unmap_buffers(pI915XvMC);
+
+    driDestroyHashContents(pI915XvMC->drawHash);
+    drmHashDestroy(pI915XvMC->drawHash);
+
+    pthread_mutex_destroy(&pI915XvMC->ctxmutex);
+
+    XLockDisplay(display);
+    uniDRIDestroyContext(display, pI915XvMC->screen, pI915XvMC->id);
+    XUnlockDisplay(display);
+
+    intelDestroyBatchBuffer(pI915XvMC);
+    drmUnmap(pI915XvMC->sarea_address, pI915XvMC->sarea_size);
+
+    if (pI915XvMC->fd >= 0)
+        drmClose(pI915XvMC->fd);
+    pI915XvMC->fd = -1;
+
+    XLockDisplay(display);
+    uniDRICloseConnection(display, pI915XvMC->screen);
+    _xvmc_destroy_context(display, context);
+    XUnlockDisplay(display);
+
+    free(pI915XvMC);
+    context->privData = NULL;
+}
+
+/***************************************************************************
+// Function: XvMCCreateContext
+// Description: Create a XvMC context for the given surface parameters.
+// Arguments:
+//   display - Connection to the X server.
+//   port - XvPortID to use as avertised by the X connection.
+//   surface_type_id - Unique identifier for the Surface type.
+//   width - Width of the surfaces.
+//   height - Height of the surfaces.
+//   flags - one or more of the following
+//      XVMC_DIRECT - A direct rendered context is requested.
+//
+// Notes: surface_type_id and width/height parameters must match those
+//        returned by XvMCListSurfaceTypes.
+// Returns: Status
+***************************************************************************/
+Status XvMCCreateContext(Display *display, XvPortID port,
+                         int surface_type_id, int width, int height, 
+                         int flags, XvMCContext *context) 
+{  
+    i915XvMCContext *pI915XvMC = NULL;
+    I915XvMCCreateContextRec *tmpComm = NULL;
+    Status ret;
+    drm_sarea_t *pSAREA;
+    char *curBusID;
+    uint *priv_data = NULL;
+    uint magic;
+    int major, minor;
+    int priv_count;
+    int isCapable;
+
+    /* Verify Obvious things first */
+    if (!display || !context)
+        return BadValue;
+
+    if (!(flags & XVMC_DIRECT)) {
+        /* Indirect */
+        printf("Indirect Rendering not supported! Using Direct.\n");
+        return BadAccess;
+    }
+
+    /* Limit use to root for now */
+    /* FIXME: remove it ??? */
+/*
+    if (geteuid()) {
+        printf("Use of XvMC on i915 is currently limited to root\n");
+        return BadAccess;
+    }
+*/
+    /*
+     *FIXME: Check $DISPLAY for legal values here
+     */
+    context->surface_type_id = surface_type_id;
+    context->width = (unsigned short)((width + 15) & ~15);
+    context->height = (unsigned short)((height + 15) & ~15);
+    context->flags = flags;
+    context->port = port;
+
+    /* 
+       Width, Height, and flags are checked against surface_type_id
+       and port for validity inside the X server, no need to check
+       here.
+    */
+
+    /* Verify the XvMC extension exists */
+    XLockDisplay(display);
+    if (!XvMCQueryExtension(display, &event_base, &error_base)) {
+        XUnlockDisplay(display);
+        printf("XvMCExtension is not available!\n");
+        return BadAlloc;
+    }
+    /* Verify XvMC version */
+    ret = XvMCQueryVersion(display, &major, &minor);
+    if (ret) {
+        printf("XvMCQueryVersion Failed, unable to determine protocol version\n");
+    }
+    XUnlockDisplay(display);
+    /* FIXME: Check Major and Minor here */
+
+    /* Allocate private Context data */
+    context->privData = (void *)calloc(1, sizeof(i915XvMCContext));
+    if (!context->privData) {
+        printf("Unable to allocate resources for XvMC context.\n");
+        return BadAlloc;
+    }
+    pI915XvMC = (i915XvMCContext *)context->privData;
+
+    /* Check for drm */
+    if (!drmAvailable()) {
+        printf("Direct Rendering is not avilable on this system!\n");
+        free(pI915XvMC);
+        context->privData = NULL;
+        return BadAccess;
+    }
+
+    /*
+      Pass control to the X server to create a drm_context_t for us and
+      validate the with/height and flags.
+    */
+    XLockDisplay(display);
+    if ((ret = _xvmc_create_context(display, context, &priv_count, &priv_data))) {
+        XUnlockDisplay(display);
+        printf("Unable to create XvMC Context.\n");
+        free(pI915XvMC);
+        context->privData = NULL;
+        return ret;
+    }
+    XUnlockDisplay(display);
+
+    if (priv_count != (sizeof(I915XvMCCreateContextRec) >> 2)) {
+        printf("_xvmc_create_context() returned incorrect data size!\n");
+        printf("\tExpected %d, got %d\n", 
+               (int)(sizeof(I915XvMCCreateContextRec) >> 2),priv_count);
+        _xvmc_destroy_context(display, context);
+        free(priv_data);
+        free(pI915XvMC);
+        context->privData = NULL;
+        return BadAlloc;
+    }
+
+    tmpComm = (I915XvMCCreateContextRec *)priv_data;
+    pI915XvMC->ctxno = tmpComm->ctxno;
+    pI915XvMC->deviceID = tmpComm->deviceID;
+    pI915XvMC->sis.handle = tmpComm->sis.handle;
+    pI915XvMC->sis.offset = tmpComm->sis.offset;
+    pI915XvMC->sis.size = tmpComm->sis.size;
+    pI915XvMC->ssb.handle = tmpComm->ssb.handle;
+    pI915XvMC->ssb.offset = tmpComm->ssb.offset;
+    pI915XvMC->ssb.size = tmpComm->ssb.size;
+    pI915XvMC->msb.handle = tmpComm->msb.handle;
+    pI915XvMC->msb.offset = tmpComm->msb.offset;
+    pI915XvMC->msb.size = tmpComm->msb.size;
+    pI915XvMC->psp.handle = tmpComm->psp.handle;
+    pI915XvMC->psp.offset = tmpComm->psp.offset;
+    pI915XvMC->psp.size = tmpComm->psp.size;
+    pI915XvMC->psc.handle = tmpComm->psc.handle;
+    pI915XvMC->psc.offset = tmpComm->psc.offset;
+    pI915XvMC->psc.size = tmpComm->psc.size;
+
+    if (pI915XvMC->deviceID == PCI_CHIP_I915_G ||
+        pI915XvMC->deviceID == PCI_CHIP_I915_GM ||
+        pI915XvMC->deviceID == PCI_CHIP_I945_G ||
+        pI915XvMC->deviceID == PCI_CHIP_I945_GM) {
+        pI915XvMC->sis.bus_addr = tmpComm->sis.bus_addr;
+        pI915XvMC->ssb.bus_addr = tmpComm->ssb.bus_addr;
+        pI915XvMC->msb.bus_addr = tmpComm->msb.bus_addr;
+        pI915XvMC->psp.bus_addr = tmpComm->psp.bus_addr;
+        pI915XvMC->psc.bus_addr = tmpComm->psc.bus_addr;
+    }
+
+    pI915XvMC->corrdata.handle = tmpComm->corrdata.handle;
+    pI915XvMC->corrdata.offset = tmpComm->corrdata.offset;
+    pI915XvMC->corrdata.size = tmpComm->corrdata.size;
+    pI915XvMC->batchbuffer.handle = tmpComm->batchbuffer.handle;
+    pI915XvMC->batchbuffer.offset = tmpComm->batchbuffer.offset;
+    pI915XvMC->batchbuffer.size = tmpComm->batchbuffer.size;
+    pI915XvMC->sarea_size = tmpComm->sarea_size;
+    pI915XvMC->sarea_priv_offset = tmpComm->sarea_priv_offset;
+    pI915XvMC->screen = tmpComm->screen;
+    pI915XvMC->depth = tmpComm->depth;
+
+    /* Must free the private data we were passed from X */
+    free(priv_data);
+    priv_data = NULL;
+
+    XLockDisplay(display);
+    ret = uniDRIQueryDirectRenderingCapable(display, pI915XvMC->screen,
+                                            &isCapable);
+    if (!ret || !isCapable) {
+        XUnlockDisplay(display);
+        fprintf(stderr,
+                "Direct Rendering is not available on this system!\n");
+        free(pI915XvMC);
+        context->privData = NULL;
+        return BadAlloc;
+    }
+
+    if (!uniDRIOpenConnection(display, pI915XvMC->screen,
+                              &pI915XvMC->hsarea, &curBusID)) {
+        XUnlockDisplay(display);
+        fprintf(stderr, "Could not open DRI connection to X server!\n");
+        free(pI915XvMC);
+        context->privData = NULL;
+        return BadAlloc;
+    }
+    XUnlockDisplay(display);
+
+    strncpy(pI915XvMC->busIdString, curBusID, 20);
+    pI915XvMC->busIdString[20] = '\0';
+    free(curBusID);
+
+    /* Open DRI Device */
+    if((pI915XvMC->fd = drmOpen(I915KernelDriverName, NULL)) < 0) {
+        printf("DRM Device for %s could not be opened.\n", I915KernelDriverName);
+        free(pI915XvMC);
+        context->privData = NULL;
+        return BadAccess;
+    } /* !pI915XvMC->fd */
+
+    /* Get magic number */
+    drmGetMagic(pI915XvMC->fd, &magic);
+    // context->flags = (unsigned long)magic;
+
+    XLockDisplay(display);
+    if (!uniDRIAuthConnection(display, pI915XvMC->screen, magic)) {
+        XUnlockDisplay(display);
+        fprintf(stderr,
+                "[XvMC]: X server did not allow DRI. Check permissions.\n");
+        free(pI915XvMC);
+        context->privData = NULL;
+        return BadAlloc;
+    }
+    XUnlockDisplay(display);
+
+    /*
+     * Map DRI Sarea.
+     */
+    if (drmMap(pI915XvMC->fd, pI915XvMC->hsarea,
+               pI915XvMC->sarea_size, &pI915XvMC->sarea_address) < 0) {
+        fprintf(stderr, "Unable to map DRI SAREA.\n");
+        free(pI915XvMC);
+        context->privData = NULL;
+        return BadAlloc;
+    }
+
+    pSAREA = (drm_sarea_t *)pI915XvMC->sarea_address;
+    pI915XvMC->driHwLock = (drmLock *)&pSAREA->lock;
+    pI915XvMC->sarea = SAREAPTR(pI915XvMC);
+    XLockDisplay(display);
+    ret = XMatchVisualInfo(display, pI915XvMC->screen,
+                           (pI915XvMC->depth == 32) ? 24 : pI915XvMC->depth, TrueColor,
+                           &pI915XvMC->visualInfo);
+    XUnlockDisplay(display);
+
+    if (!ret) {
+        fprintf(stderr,
+                "[XvMC]: Could not find a matching TrueColor visual.\n");
+        free(pI915XvMC);
+        context->privData = NULL;
+        drmUnmap(pI915XvMC->sarea_address, pI915XvMC->sarea_size);
+        return BadAlloc;
+    }
+
+    if (!uniDRICreateContext(display, pI915XvMC->screen,
+                             pI915XvMC->visualInfo.visual, &pI915XvMC->id,
+                             &pI915XvMC->hHWContext)) {
+
+        fprintf(stderr, "[XvMC]: Could not create DRI context.\n");
+        free(pI915XvMC);
+        context->privData = NULL;
+        drmUnmap(pI915XvMC->sarea_address, pI915XvMC->sarea_size);
+        return BadAlloc;
+    }
+
+    if (NULL == (pI915XvMC->drawHash = drmHashCreate())) {
+        fprintf(stderr, 
+                "[XvMC]: Could not allocate drawable hash table.\n");
+        free(pI915XvMC);
+        context->privData = NULL;
+        drmUnmap(pI915XvMC->sarea_address, pI915XvMC->sarea_size);
+        return BadAlloc;
+    }
+
+    if (i915_xvmc_map_buffers(pI915XvMC)) {
+        i915_xvmc_unmap_buffers(pI915XvMC);
+        free(pI915XvMC);
+        context->privData = NULL;
+        drmUnmap(pI915XvMC->sarea_address, pI915XvMC->sarea_size);
+        return BadAlloc;
+    }
+
+    /* Initialize private context values */
+    pI915XvMC->yStride = STRIDE(width);
+    pI915XvMC->uvStride = STRIDE(width >> 1);
+    pI915XvMC->haveXv = 0;
+    pI915XvMC->dual_prime = 0;
+    pI915XvMC->last_flip = 0;
+    pI915XvMC->locked = 0;
+    pI915XvMC->port = context->port;
+    pthread_mutex_init(&pI915XvMC->ctxmutex, NULL);
+    intelInitBatchBuffer(pI915XvMC);
+    pI915XvMC->ref = 1;
+    return Success;
+}
+
+/***************************************************************************
+// Function: XvMCDestroyContext
+// Description: Destorys the specified context.
+//
+// Arguments:
+//   display - Specifies the connection to the server.
+//   context - The context to be destroyed.
+//
+// Returns: Status
+***************************************************************************/
+Status XvMCDestroyContext(Display *display, XvMCContext *context)
+{
+    i915XvMCContext *pI915XvMC;
+
+    if (!display || !context)
+        return BadValue;
+
+    if (!(pI915XvMC = context->privData))
+        return (error_base + XvMCBadContext);
+
+    /* Pass Control to the X server to destroy the drm_context_t */
+    i915_release_resource(display,context);
+    return Success;
+}
+
+/***************************************************************************
+// Function: XvMCCreateSurface
+***************************************************************************/
+Status XvMCCreateSurface(Display *display, XvMCContext *context, XvMCSurface *surface) 
+{
+    Status ret;
+    i915XvMCContext *pI915XvMC;
+    i915XvMCSurface *pI915Surface;
+    I915XvMCCreateSurfaceRec *tmpComm = NULL;
+    int priv_count;
+    uint *priv_data;
+
+    if (!display || !context || !display)
+        return BadValue;
+
+    if (!(pI915XvMC = context->privData))
+        return (error_base + XvMCBadContext);
+
+    PPTHREAD_MUTEX_LOCK(pI915XvMC);
+    surface->privData = (i915XvMCSurface *)malloc(sizeof(i915XvMCSurface));
+
+    if (!(pI915Surface = surface->privData)) {
+        PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
+        return BadAlloc;
+    }
+
+    /* Initialize private values */
+    pI915Surface->last_render = 0;
+    pI915Surface->last_flip = 0;
+    pI915Surface->yStride = pI915XvMC->yStride;
+    pI915Surface->uvStride = pI915XvMC->uvStride;
+    pI915Surface->width = context->width;
+    pI915Surface->height = context->height;
+    pI915Surface->privContext = pI915XvMC;
+    pI915Surface->privSubPic = NULL;
+    pI915Surface->srf.map = NULL;
+    XLockDisplay(display);
+
+    if ((ret = _xvmc_create_surface(display, context, surface,
+                                    &priv_count, &priv_data))) {
+        XUnlockDisplay(display);
+        printf("Unable to create XvMCSurface.\n");
+        free(pI915Surface);
+        surface->privData = NULL;
+        PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
+        return ret;
+    }
+
+    XUnlockDisplay(display);
+
+    if (priv_count != (sizeof(I915XvMCCreateSurfaceRec) >> 2)) {
+        printf("_xvmc_create_surface() returned incorrect data size!\n");
+        printf("\tExpected %d, got %d\n", 
+               (int)(sizeof(I915XvMCCreateSurfaceRec) >> 2), priv_count);
+        _xvmc_destroy_surface(display, surface);
+        free(priv_data);
+        free(pI915Surface);
+        surface->privData = NULL;
+        PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
+        return BadAlloc;
+    }
+
+    tmpComm = (I915XvMCCreateSurfaceRec *)priv_data;
+
+    pI915Surface->srfNo = tmpComm->srfno;
+    pI915Surface->srf.handle = tmpComm->srf.handle;
+    pI915Surface->srf.offset = tmpComm->srf.offset;
+    pI915Surface->srf.size = tmpComm->srf.size;
+    free(priv_data);
+
+    if (drmMap(pI915XvMC->fd,
+               pI915Surface->srf.handle,
+               pI915Surface->srf.size,
+               (drmAddress *)&pI915Surface->srf.map) != 0) {
+        _xvmc_destroy_surface(display, surface);
+        free(pI915Surface);
+        surface->privData = NULL;
+        PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
+        return BadAlloc;
+    }
+
+    pI915XvMC->ref++;
+    PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
+    return Success;
+}
+
+
+/***************************************************************************
+// Function: XvMCDestroySurface
+***************************************************************************/
+Status XvMCDestroySurface(Display *display, XvMCSurface *surface) 
+{
+    i915XvMCSurface *pI915Surface;
+    i915XvMCContext *pI915XvMC;
+
+    if (!display || !surface)
+        return BadValue;
+
+    if (!(pI915Surface = surface->privData))
+        return (error_base + XvMCBadSurface);
+
+    if (!(pI915XvMC = pI915Surface->privContext))
+        return (error_base + XvMCBadSurface);
+
+    if (pI915Surface->last_flip)
+        XvMCSyncSurface(display,surface);
+
+    if (pI915Surface->srf.map)
+        drmUnmap(pI915Surface->srf.map, pI915Surface->srf.size);
+
+    XLockDisplay(display);
+    _xvmc_destroy_surface(display, surface);
+    XUnlockDisplay(display);
+
+    free(pI915Surface);
+    surface->privData = NULL;
+    pI915XvMC->ref--;
+
+    return Success;
+}
+
+/***************************************************************************
+// Function: XvMCCreateBlocks
+***************************************************************************/
+Status XvMCCreateBlocks(Display *display, XvMCContext *context,
+                        unsigned int num_blocks, 
+                        XvMCBlockArray *block) 
+{
+    if (!display || !context || !num_blocks || !block)
+        return BadValue;
+
+    memset(block, 0, sizeof(XvMCBlockArray));
+
+    if (!(block->blocks = (short *)malloc(num_blocks << 6 * sizeof(short))))
+        return BadAlloc;
+
+    block->num_blocks = num_blocks;
+    block->context_id = context->context_id;
+    block->privData = NULL;
+
+    return Success;
+}
+
+/***************************************************************************
+// Function: XvMCDestroyBlocks
+***************************************************************************/
+Status XvMCDestroyBlocks(Display *display, XvMCBlockArray *block) 
+{
+    if (!display || block)
+        return BadValue;
+
+    if (block->blocks)
+        free(block->blocks);
+
+    block->context_id = 0;
+    block->num_blocks = 0;
+    block->blocks = NULL;
+    block->privData = NULL;
+
+    return Success;
+}
+
+/***************************************************************************
+// Function: XvMCCreateMacroBlocks
+***************************************************************************/
+Status XvMCCreateMacroBlocks(Display *display, XvMCContext *context,
+                             unsigned int num_blocks,
+                             XvMCMacroBlockArray *blocks) 
+{
+    if (!display || !context || !blocks || !num_blocks)
+        return BadValue;
+
+    memset(blocks, 0, sizeof(XvMCMacroBlockArray));
+    blocks->macro_blocks = (XvMCMacroBlock *)malloc(num_blocks * sizeof(XvMCMacroBlock));
+
+    if (!blocks->macro_blocks)
+        return BadAlloc;
+
+    blocks->num_blocks = num_blocks;
+    blocks->context_id = context->context_id;
+    blocks->privData = NULL;
+
+    return Success;
+}
+
+/***************************************************************************
+// Function: XvMCDestroyMacroBlocks
+***************************************************************************/
+Status XvMCDestroyMacroBlocks(Display *display, XvMCMacroBlockArray *block) 
+{
+    if (!display || !block)
+        return BadValue;
+    if (block->macro_blocks)
+        free(block->macro_blocks);
+
+    block->context_id = 0;
+    block->num_blocks = 0;
+    block->macro_blocks = NULL;
+    block->privData = NULL;
+
+    return Success;
+}
+
+/***************************************************************************
+// Function: XvMCRenderSurface
+// Description: This function does the actual HWMC. Given a list of
+//  macroblock structures it dispatched the hardware commands to execute
+//  them. 
+***************************************************************************/
+Status XvMCRenderSurface(Display *display, XvMCContext *context,
+                         unsigned int picture_structure,
+                         XvMCSurface *target_surface,
+                         XvMCSurface *past_surface,
+                         XvMCSurface *future_surface,
+                         unsigned int flags,
+                         unsigned int num_macroblocks,
+                         unsigned int first_macroblock,
+                         XvMCMacroBlockArray *macroblock_array,
+                         XvMCBlockArray *blocks) 
+{
+    int i;
+    int picture_coding_type = MPEG_I_PICTURE;
+    /* correction data buffer */
+    char *corrdata_ptr;
+    int corrdata_size = 0;
+
+    /* Block Pointer */
+    short *block_ptr;
+    /* Current Macroblock Pointer */
+    XvMCMacroBlock *mb;
+
+    i915XvMCSurface *privTarget = NULL;
+    i915XvMCSurface *privFuture = NULL;
+    i915XvMCSurface *privPast = NULL;
+    i915XvMCContext *pI915XvMC = NULL;
+
+    /* Check Parameters for validity */
+    if (!display) {
+        printf("Error, Invalid display!\n");
+        return BadValue;
+    }
+
+    if (!display || !context || !target_surface) {
+        printf("Error, Invalid Display, Context or Target!\n");
+        return BadValue;
+    }
+
+    if (!num_macroblocks)
+        return Success;
+
+    if (!macroblock_array || !blocks) {
+        printf("Error, Invalid block data!\n");
+        return BadValue;
+    }
+
+    if (macroblock_array->num_blocks < (num_macroblocks + first_macroblock)) {
+        printf("Error, Too many macroblocks requested for MB array size.\n");
+        return BadValue;
+    }
+
+    if (!(pI915XvMC = context->privData))
+        return (error_base + XvMCBadContext);
+
+    if (!(privTarget = target_surface->privData))
+        return (error_base + XvMCBadSurface);
+
+    /* Test For YV12 Surface */
+    if (context->surface_type_id != FOURCC_YV12) {
+        printf("Error, HWMC only possible on YV12 Surfaces\n");
+        return BadValue;
+    }
+
+    /* P Frame Test */
+    if (!past_surface) {
+        /* Just to avoid some ifs later. */
+        privPast = privTarget;
+    } else {
+        if (!(privPast = past_surface->privData)) {
+            printf("Error, Invalid Past Surface!\n");
+            return (error_base + XvMCBadSurface);
+        }
+        
+        picture_coding_type = MPEG_P_PICTURE;
+    }
+
+    /* B Frame Test */
+    if (!future_surface) {
+        privFuture = privPast; // privTarget;
+    } else {
+        if (!past_surface) {
+            printf("Error, No Past Surface!\n");
+            return BadValue;
+        }
+
+        if (!(privFuture = future_surface->privData)) {
+            printf("Error, Invalid Future Surface!\n");
+            return (error_base + XvMCBadSurface);
+        }
+
+        picture_coding_type = MPEG_B_PICTURE;
+    }
+
+    LOCK_HARDWARE(pI915XvMC);
+    corrdata_ptr = pI915XvMC->corrdata.map;
+    corrdata_size = 0;
+
+    for (i = first_macroblock; i < (num_macroblocks + first_macroblock); i++) {
+        int bspm = 0;
+        mb = &macroblock_array->macro_blocks[i];
+        block_ptr = &(blocks->blocks[mb->index << 6]);
+
+        /* Lockup can happen if the coordinates are too far out of range */
+        if (mb->x > (target_surface->width >> 4)) {
+            mb->x = 0;
+            printf("reset x\n");
+        }
+
+        if (mb->y > (target_surface->height >> 4)) {
+            mb->y = 0;
+            printf("reset y\n");
+        }
+
+        /* Catch no pattern case */
+        if (!(mb->macroblock_type & XVMC_MB_TYPE_PATTERN) &&
+            !(mb->macroblock_type & XVMC_MB_TYPE_INTRA) &&
+            mb->coded_block_pattern) {
+            mb->coded_block_pattern = 0;
+            printf("no coded blocks present!\n");
+        }
+        
+        bspm = mb_bytes[mb->coded_block_pattern];
+
+        if (!bspm)
+            continue;
+
+        corrdata_size += bspm;
+
+        if (corrdata_size > pI915XvMC->corrdata.size) {
+            printf("Error, correction data buffer overflow\n");
+            break;
+        }
+        memcpy(corrdata_ptr, block_ptr, bspm);
+        corrdata_ptr += bspm;
+    } 
+
+    i915_flush(pI915XvMC, 1, 0);
+    // i915_mc_invalidate_subcontext_buffers(context, BLOCK_SIS | BLOCK_DIS | BLOCK_SSB 
+    // | BLOCK_MSB | BLOCK_PSP | BLOCK_PSC);
+
+    i915_mc_sampler_state_buffer(context);
+    i915_mc_pixel_shader_program_buffer(context);
+    i915_mc_pixel_shader_constants_buffer(context);
+    i915_mc_one_time_state_initialization(context);
+
+    i915_mc_static_indirect_state_buffer(context, target_surface, 
+                                         picture_structure, flags,
+                                         picture_coding_type);
+    i915_mc_map_state_buffer(context, privTarget, privPast, privFuture);
+    i915_mc_load_sis_msb_buffers(context);
+    i915_mc_mpeg_set_origin(context, &macroblock_array->macro_blocks[first_macroblock]);
+
+    for (i = first_macroblock; i < (num_macroblocks + first_macroblock); i++) {
+        mb = &macroblock_array->macro_blocks[i];
+
+        /* Intra Blocks */
+        if (mb->macroblock_type & XVMC_MB_TYPE_INTRA) {
+            i915_mc_mpeg_macroblock_ipicture(context, mb);
+        } else if ((picture_structure & XVMC_FRAME_PICTURE) == XVMC_FRAME_PICTURE) { /* Frame Picture */
+            switch (mb->motion_type & 3) {
+            case XVMC_PREDICTION_FIELD: /* Field Based */
+                i915_mc_mpeg_macroblock_2fbmv(context, mb, picture_structure);
+                break;
+
+            case XVMC_PREDICTION_FRAME: /* Frame Based */
+                i915_mc_mpeg_macroblock_1fbmv(context, mb);
+                break;
+
+            case XVMC_PREDICTION_DUAL_PRIME:    /* Dual Prime */
+                i915_mc_mpeg_macroblock_2fbmv(context, mb, picture_structure);
+                break;
+
+            default:    /* No Motion Type */
+                renderError();
+                break;
+            }   
+        } else {        /* Frame Picture */
+            switch (mb->motion_type & 3) {
+            case XVMC_PREDICTION_FIELD: /* Field Based */
+                i915_mc_mpeg_macroblock_1fbmv(context, mb);
+                break;
+
+            case XVMC_PREDICTION_16x8:  /* 16x8 MC */
+                i915_mc_mpeg_macroblock_2fbmv(context, mb, picture_structure);
+                break;
+                
+            case XVMC_PREDICTION_DUAL_PRIME:    /* Dual Prime */
+                i915_mc_mpeg_macroblock_1fbmv(context, mb);
+                break;
+
+            default:    /* No Motion Type */
+                renderError();
+                break;
+            }
+        }       /* Field Picture */
+    }
+
+    intelFlushBatch(pI915XvMC, TRUE);
+    pI915XvMC->last_render = pI915XvMC->alloc.irq_emitted;
+    privTarget->last_render = pI915XvMC->last_render;
+
+    UNLOCK_HARDWARE(pI915XvMC);
+    return Success;
+}
+
+/***************************************************************************
+// Function: XvMCPutSurface
+// Description:
+// Arguments:
+//  display: Connection to X server
+//  surface: Surface to be displayed
+//  draw: X Drawable on which to display the surface
+//  srcx: X coordinate of the top left corner of the region to be
+//          displayed within the surface.
+//  srcy: Y coordinate of the top left corner of the region to be
+//          displayed within the surface.
+//  srcw: Width of the region to be displayed.
+//  srch: Height of the region to be displayed.
+//  destx: X cordinate of the top left corner of the destination region
+//         in the drawable coordinates.
+//  desty: Y cordinate of the top left corner of the destination region
+//         in the drawable coordinates.
+//  destw: Width of the destination region.
+//  desth: Height of the destination region.
+//  flags: One or more of the following.
+//     XVMC_TOP_FIELD - Display only the Top field of the surface.
+//     XVMC_BOTTOM_FIELD - Display only the Bottom Field of the surface.
+//     XVMC_FRAME_PICTURE - Display both fields or frame.
+//
+// Info: Portions of this function derived from i915_video.c (XFree86)
+//
+//   This function is organized so that we wait as long as possible before
+//   touching the overlay registers. Since we don't know that the last
+//   flip has happened yet we want to give the overlay as long as
+//   possible to catch up before we have to check on its progress. This
+//   makes it unlikely that we have to wait on the last flip.
+***************************************************************************/
+Status XvMCPutSurface(Display *display,XvMCSurface *surface,
+                      Drawable draw, short srcx, short srcy,
+                      unsigned short srcw, unsigned short srch,
+                      short destx, short desty,
+                      unsigned short destw, unsigned short desth,
+                      int flags) 
+{
+    i915XvMCContext *pI915XvMC;
+    i915XvMCSurface *pI915Surface;
+    i915XvMCSubpicture *pI915SubPic;
+    I915XvMCCommandBuffer buf;
+
+    // drawableInfo *drawInfo;
+    Status ret;
+
+    if (!display || !surface)
+        return BadValue;
+
+    if (!(pI915Surface = surface->privData))
+        return (error_base + XvMCBadSurface);
+
+    if (!(pI915XvMC = pI915Surface->privContext))
+        return (error_base + XvMCBadSurface);
+
+    PPTHREAD_MUTEX_LOCK(pI915XvMC);
+    /*
+    if (getDRIDrawableInfoLocked(pI915XvMC->drawHash, display,
+                                 pI915XvMC->screen, draw, 0, pI915XvMC->fd, pI915XvMC->hHWContext,
+                                 pI915XvMC->sarea_address, FALSE, &drawInfo, sizeof(*drawInfo))) {
+        PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
+        return BadAccess;
+    }
+    */
+    if (!pI915XvMC->haveXv) {
+        pI915XvMC->xvImage =
+            XvCreateImage(display, pI915XvMC->port, FOURCC_XVMC,
+                          (char *)&buf, pI915Surface->width, pI915Surface->height);
+        pI915XvMC->gc = XCreateGC(display, draw, 0, 0);
+        pI915XvMC->haveXv = 1;
+    }
+
+    pI915XvMC->draw = draw;
+    pI915XvMC->xvImage->data = (char *)&buf;
+
+    buf.command = I915_XVMC_COMMAND_DISPLAY;
+    buf.ctxNo = pI915XvMC->ctxno;
+    buf.srfNo = pI915Surface->srfNo;
+    pI915SubPic = pI915Surface->privSubPic;
+    buf.subPicNo = (!pI915SubPic ? 0 : pI915SubPic->srfNo);
+    buf.real_id = FOURCC_YV12;
+
+    XLockDisplay(display);
+
+    if ((ret = XvPutImage(display, pI915XvMC->port, draw, pI915XvMC->gc,
+                          pI915XvMC->xvImage, srcx, srcy, srcw, srch,
+                          destx, desty, destw, desth))) {
+        XUnlockDisplay(display);
+        PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
+
+        return ret;
+    }
+
+    XSync(display, 0);
+    XUnlockDisplay(display);
+    PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
+
+    return Success;
+}
+
+/***************************************************************************
+// Function: XvMCSyncSurface
+// Arguments:
+//   display - Connection to the X server
+//   surface - The surface to synchronize
+// Info:
+// Returns: Status
+***************************************************************************/
+Status XvMCSyncSurface(Display *display, XvMCSurface *surface) 
+{
+    Status ret;
+    int stat = 0;
+
+    do {
+        ret = XvMCGetSurfaceStatus(display, surface, &stat);
+    } while (!ret && (stat & XVMC_RENDERING));
+
+    return ret;
+}
+
+/***************************************************************************
+// Function: XvMCFlushSurface
+// Description:
+//   This function commits pending rendering requests to ensure that they
+//   wll be completed in a finite amount of time.
+// Arguments:
+//   display - Connection to X server
+//   surface - Surface to flush
+// Returns: Status
+***************************************************************************/
+Status XvMCFlushSurface(Display * display, XvMCSurface *surface) 
+{
+    return Success;
+}
+
+/***************************************************************************
+// Function: XvMCGetSurfaceStatus
+// Description:
+// Arguments:
+//  display: connection to X server
+//  surface: The surface to query
+//  stat: One of the Following
+//    XVMC_RENDERING - The last XvMCRenderSurface command has not
+//                     completed.
+//    XVMC_DISPLAYING - The surface is currently being displayed or a
+//                     display is pending.
+***************************************************************************/
+Status XvMCGetSurfaceStatus(Display *display, XvMCSurface *surface, int *stat) 
+{
+    i915XvMCSurface *pI915Surface;
+    i915XvMCContext *pI915XvMC;
+
+    if (!display || !surface || !stat)
+        return BadValue;
+    
+    *stat = 0;
+
+    if (!(pI915Surface = surface->privData))
+        return (error_base + XvMCBadSurface);
+
+    if (!(pI915XvMC = pI915Surface->privContext))
+        return (error_base + XvMCBadSurface);
+
+    // LOCK_HARDWARE(pI915XvMC);
+    PPTHREAD_MUTEX_LOCK(pI915XvMC);
+    if (pI915Surface->last_flip) {
+        /* This can not happen */
+        if (pI915XvMC->last_flip < pI915Surface->last_flip) {
+            printf("Error: Context last flip is less than surface last flip.\n");
+            PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
+            return BadValue;
+        }
+
+        /*
+          If the context has 2 or more flips after this surface it
+          cannot be displaying. Don't bother to check.
+        */
+        if (!(pI915XvMC->last_flip > (pI915Surface->last_flip + 1))) {
+            /*
+              If this surface was the last flipped it is either displaying
+              or about to be so don't bother checking.
+            */
+            if (pI915XvMC->last_flip == pI915Surface->last_flip) {
+                *stat |= XVMC_DISPLAYING;
+            }
+        }
+    }
+
+    if (pI915Surface->last_render &&
+        (pI915Surface->last_render > pI915XvMC->sarea->last_dispatch)) {
+        *stat |= XVMC_RENDERING;
+    }
+
+    // UNLOCK_HARDWARE(pI915XvMC);
+    PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
+    return Success;
+}
+
+/***************************************************************************
+// 
+//  Surface manipulation functions
+//
+***************************************************************************/
+
+/***************************************************************************
+// Function: XvMCHideSurface
+// Description: Stops the display of a surface.
+// Arguments:
+//   display - Connection to the X server.
+//   surface - surface to be hidden.
+//
+// Returns: Status
+***************************************************************************/
+Status XvMCHideSurface(Display *display, XvMCSurface *surface) 
+{
+    i915XvMCSurface *pI915Surface;
+    i915XvMCContext *pI915XvMC;
+    int stat = 0, ret;
+
+    if (!display || !surface)
+        return BadValue;
+
+    if (!(pI915Surface = surface->privData))
+        return (error_base + XvMCBadSurface);
+
+    /* Get the associated context pointer */
+    if (!(pI915XvMC = pI915Surface->privContext))
+        return (error_base + XvMCBadSurface);
+
+    XvMCSyncSurface(display, surface);
+
+    /*
+      Get the status of the surface, if it is not currently displayed
+      we don't need to worry about it.
+    */
+    if ((ret = XvMCGetSurfaceStatus(display, surface, &stat)) != Success)
+        return ret;
+
+    if (!(stat & XVMC_DISPLAYING))
+        return Success;
+
+    /* FIXME: */
+    return Success;
+}
+
+/***************************************************************************
+//
+// Functions that deal with subpictures
+//
+***************************************************************************/
+
+
+
+/***************************************************************************
+// Function: XvMCCreateSubpicture
+// Description: This creates a subpicture by filling out the XvMCSubpicture
+//              structure passed to it and returning Success.
+// Arguments:
+//   display - Connection to the X server.
+//   context - The context to create the subpicture for.
+//   subpicture - Pre-allocated XvMCSubpicture structure to be filled in.
+//   width - of subpicture
+//   height - of subpicture
+//   xvimage_id - The id describing the XvImage format.
+//
+// Returns: Status
+***************************************************************************/
+Status XvMCCreateSubpicture(Display *display, XvMCContext *context,
+                            XvMCSubpicture *subpicture,
+                            unsigned short width, unsigned short height,
+                            int xvimage_id) 
+{
+    Status ret;
+    i915XvMCContext *pI915XvMC;
+    i915XvMCSubpicture *pI915Subpicture;
+    I915XvMCCreateSurfaceRec *tmpComm = NULL;
+    int priv_count;
+    uint *priv_data;
+
+    if (!subpicture || !context || !display)
+        return BadValue;
+  
+    pI915XvMC = (i915XvMCContext *)context->privData;
+
+    if (!pI915XvMC)
+        return (error_base + XvMCBadContext);
+
+    subpicture->privData =
+        (i915XvMCSubpicture *)malloc(sizeof(i915XvMCSubpicture));
+
+    if (!subpicture->privData)
+        return BadAlloc;
+
+    PPTHREAD_MUTEX_LOCK(pI915XvMC);
+    subpicture->context_id = context->context_id;
+    subpicture->xvimage_id = xvimage_id;
+    subpicture->width = width;
+    subpicture->height = height;
+    pI915Subpicture = (i915XvMCSubpicture *)subpicture->privData;
+
+    XLockDisplay(display);
+    if ((ret = _xvmc_create_subpicture(display, context, subpicture,
+                                       &priv_count, &priv_data))) {
+        XUnlockDisplay(display);
+        printf("Unable to create XvMCSubpicture.\n");
+        free(pI915Subpicture);
+        subpicture->privData = NULL;
+        PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
+        return ret;
+    }
+    XUnlockDisplay(display);
+
+    if (priv_count != (sizeof(I915XvMCCreateSurfaceRec) >> 2)) {
+        printf("_xvmc_create_subpicture() returned incorrect data size!\n");
+        printf("\tExpected %d, got %d\n", 
+               (int)(sizeof(I915XvMCCreateSurfaceRec) >> 2), priv_count);
+        XLockDisplay(display);
+        _xvmc_destroy_subpicture(display, subpicture);
+        XUnlockDisplay(display);
+        free(priv_data);
+        free(pI915Subpicture);
+        subpicture->privData = NULL;
+        PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
+        return BadAlloc;
+    }
+
+    tmpComm = (I915XvMCCreateSurfaceRec *)priv_data;
+    pI915Subpicture->srfNo = tmpComm->srfno;
+    pI915Subpicture->srf.handle = tmpComm->srf.handle;
+    pI915Subpicture->srf.offset = tmpComm->srf.offset;
+    pI915Subpicture->srf.size = tmpComm->srf.size;
+    free(priv_data);
+
+    if (drmMap(pI915XvMC->fd,
+               pI915Subpicture->srf.handle,
+               pI915Subpicture->srf.size,
+               (drmAddress *)&pI915Subpicture->srf.map) != 0) {
+        XLockDisplay(display);
+        _xvmc_destroy_subpicture(display, subpicture);
+        XUnlockDisplay(display);
+        free(pI915Subpicture);
+        subpicture->privData = NULL;
+        PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
+        return BadAlloc;
+    }
+
+    /* subpicture */
+    subpicture->num_palette_entries = I915_SUBPIC_PALETTE_SIZE;
+    subpicture->entry_bytes = 3;
+    strncpy(subpicture->component_order, "YUV", 4);
+
+    /* Initialize private values */
+    pI915Subpicture->privContext = pI915XvMC;
+    pI915Subpicture->last_render= 0;
+    pI915Subpicture->last_flip = 0;
+    pI915Subpicture->pitch = ((subpicture->width + 3) & ~3);
+
+    switch(subpicture->xvimage_id) {
+    case FOURCC_IA44:
+    case FOURCC_AI44:
+        break;
+
+    default:
+        drmUnmap(pI915Subpicture->srf.map, pI915Subpicture->srf.size);
+        XLockDisplay(display);
+        _xvmc_destroy_subpicture(display, subpicture);
+        XUnlockDisplay(display);
+        free(pI915Subpicture);
+        subpicture->privData = NULL;
+        PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
+        return BadMatch;
+    }
+
+    pI915XvMC->ref++;
+    PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
+    return Success;
+}
+
+/***************************************************************************
+// Function: XvMCClearSubpicture
+// Description: Clear the area of the given subpicture to "color".
+//              structure passed to it and returning Success.
+// Arguments:
+//   display - Connection to the X server.
+//   subpicture - Subpicture to clear.
+//   x, y, width, height - rectangle in the subpicture to clear.
+//   color - The data to file the rectangle with.
+//
+// Returns: Status
+***************************************************************************/
+Status XvMCClearSubpicture(Display *display, XvMCSubpicture *subpicture,
+                           short x, short y,
+                           unsigned short width, unsigned short height,
+                           unsigned int color) 
+{
+    i915XvMCContext *pI915XvMC;
+    i915XvMCSubpicture *pI915Subpicture;
+
+    if (!display || !subpicture)
+        return BadValue;
+
+    if (!(pI915Subpicture = subpicture->privData))
+        return (error_base + XvMCBadSubpicture);
+
+    if (!(pI915XvMC = pI915Subpicture->privContext))
+        return (error_base + XvMCBadSubpicture);
+
+    if ((x < 0) || (x + width) > subpicture->width)
+        return BadValue;
+
+    if ((y < 0) || (y + height) > subpicture->height)
+        return BadValue;
+
+    /* FIXME: clear the area */
+
+    return Success;
+}
+
+/***************************************************************************
+// Function: XvMCCompositeSubpicture
+// Description: Composite the XvImae on the subpicture. This composit uses
+//              non-premultiplied alpha. Destination alpha is utilized
+//              except for with indexed subpictures. Indexed subpictures
+//              use a simple "replace".
+// Arguments:
+//   display - Connection to the X server.
+//   subpicture - Subpicture to clear.
+//   image - the XvImage to be used as the source of the composite.
+//   srcx, srcy, width, height - The rectangle from the image to be used.
+//   dstx, dsty - location in the subpicture to composite the source.
+//
+// Returns: Status
+***************************************************************************/
+Status XvMCCompositeSubpicture(Display *display, XvMCSubpicture *subpicture,
+                               XvImage *image,
+                               short srcx, short srcy,
+                               unsigned short width, unsigned short height,
+                               short dstx, short dsty) 
+{
+    i915XvMCContext *pI915XvMC;
+    i915XvMCSubpicture *pI915Subpicture;
+
+    if (!display || !subpicture)
+        return BadValue;
+
+    if (!(pI915Subpicture = subpicture->privData))
+        return (error_base + XvMCBadSubpicture);
+
+    if (!(pI915XvMC = pI915Subpicture->privContext))
+        return (error_base + XvMCBadSubpicture);
+
+    if ((srcx < 0) || (srcx + width) > subpicture->width)
+        return BadValue;
+
+    if ((srcy < 0) || (srcy + height) > subpicture->height)
+        return BadValue;
+
+    if ((dstx < 0) || (dstx + width) > subpicture->width)
+        return BadValue;
+
+    if ((dsty < 0) || (dsty + width) > subpicture->height)
+        return BadValue;
+
+    if (image->id != subpicture->xvimage_id)
+        return BadMatch;
+
+    /* FIXME */
+    return Success;
+}
+
+
+/***************************************************************************
+// Function: XvMCDestroySubpicture
+// Description: Destroys the specified subpicture.
+// Arguments:
+//   display - Connection to the X server.
+//   subpicture - Subpicture to be destroyed.
+//
+// Returns: Status
+***************************************************************************/
+Status XvMCDestroySubpicture(Display *display, XvMCSubpicture *subpicture) 
+{
+    i915XvMCSubpicture *pI915Subpicture;
+    i915XvMCContext *pI915XvMC;
+
+    if (!display || !subpicture)
+        return BadValue;
+
+    if (!(pI915Subpicture = subpicture->privData))
+        return (error_base + XvMCBadSubpicture);
+
+    if (!(pI915XvMC = pI915Subpicture->privContext))
+        return (error_base + XvMCBadSubpicture);
+
+    if (pI915Subpicture->last_render)
+        XvMCSyncSubpicture(display, subpicture);
+
+    if (pI915Subpicture->srf.map)
+        drmUnmap(pI915Subpicture->srf.map, pI915Subpicture->srf.size);
+
+    PPTHREAD_MUTEX_LOCK(pI915XvMC);
+    XLockDisplay(display);
+    _xvmc_destroy_subpicture(display,subpicture);
+    XUnlockDisplay(display);
+
+    free(pI915Subpicture);
+    subpicture->privData = NULL;
+    pI915XvMC->ref--;
+    PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
+
+    return Success;
+}
+
+
+/***************************************************************************
+// Function: XvMCSetSubpicturePalette
+// Description: Set the subpictures palette
+// Arguments:
+//   display - Connection to the X server.
+//   subpicture - Subpiture to set palette for.
+//   palette - A pointer to an array holding the palette data. The array
+//     is num_palette_entries * entry_bytes in size.
+// Returns: Status
+***************************************************************************/
+
+Status XvMCSetSubpicturePalette(Display *display, XvMCSubpicture *subpicture,
+                                unsigned char *palette) 
+{
+    i915XvMCSubpicture *pI915Subpicture;
+    int i, j;
+
+    if (!display || !subpicture)
+        return BadValue;
+
+    if (!(pI915Subpicture = subpicture->privData))
+        return (error_base + XvMCBadSubpicture);
+
+    j = 0;
+    for (i = 0; i < 16; i++) {
+        pI915Subpicture->palette[0][i] = palette[j++];
+        pI915Subpicture->palette[1][i] = palette[j++];
+        pI915Subpicture->palette[2][i] = palette[j++];
+    }
+
+    /* FIXME: Update the subpicture with the new palette */
+    return Success;
+}
+
+/***************************************************************************
+// Function: XvMCBlendSubpicture
+// Description: 
+//    The behavior of this function is different depending on whether
+//    or not the XVMC_BACKEND_SUBPICTURE flag is set in the XvMCSurfaceInfo.
+//    i915 only support frontend behavior.
+//  
+//    XVMC_BACKEND_SUBPICTURE not set ("frontend" behavior):
+//   
+//    XvMCBlendSubpicture is a no-op in this case.
+//   
+// Arguments:
+//   display - Connection to the X server.
+//   subpicture - The subpicture to be blended into the video.
+//   target_surface - The surface to be displayed with the blended subpic.
+//   source_surface - Source surface prior to blending.
+//   subx, suby, subw, subh - The rectangle from the subpicture to use.
+//   surfx, surfy, surfw, surfh - The rectangle in the surface to blend
+//      blend the subpicture rectangle into. Scaling can ocure if 
+//      XVMC_SUBPICTURE_INDEPENDENT_SCALING is set.
+//
+// Returns: Status
+***************************************************************************/
+Status XvMCBlendSubpicture(Display *display, XvMCSurface *target_surface,
+                           XvMCSubpicture *subpicture,
+                           short subx, short suby,
+                           unsigned short subw, unsigned short subh,
+                           short surfx, short surfy,
+                           unsigned short surfw, unsigned short surfh) 
+{
+    i915XvMCSubpicture *pI915Subpicture;
+    i915XvMCSurface *privTargetSurface;
+
+    if (!display || !target_surface)
+        return BadValue;
+
+    if (!(privTargetSurface = target_surface->privData))
+        return (error_base + XvMCBadSurface);
+
+    if (subpicture) {
+        if (!(pI915Subpicture = subpicture->privData))
+            return (error_base + XvMCBadSubpicture);
+
+        if ((FOURCC_AI44 != subpicture->xvimage_id) &&
+            (FOURCC_IA44 != subpicture->xvimage_id))
+            return (error_base + XvMCBadSubpicture);
+
+        privTargetSurface->privSubPic = pI915Subpicture;
+    } else {
+        privTargetSurface->privSubPic = NULL;
+    }
+
+    return Success;
+}
+
+/***************************************************************************
+// Function: XvMCBlendSubpicture2
+// Description: 
+//    The behavior of this function is different depending on whether
+//    or not the XVMC_BACKEND_SUBPICTURE flag is set in the XvMCSurfaceInfo.
+//    i915 only supports frontend blending.
+//  
+//    XVMC_BACKEND_SUBPICTURE not set ("frontend" behavior):
+//   
+//    XvMCBlendSubpicture2 blends the source_surface and subpicture and
+//    puts it in the target_surface.  This does not effect the status of
+//    the source surface but will cause the target_surface to query
+//    XVMC_RENDERING until the blend is completed.
+//   
+// Arguments:
+//   display - Connection to the X server.
+//   subpicture - The subpicture to be blended into the video.
+//   target_surface - The surface to be displayed with the blended subpic.
+//   source_surface - Source surface prior to blending.
+//   subx, suby, subw, subh - The rectangle from the subpicture to use.
+//   surfx, surfy, surfw, surfh - The rectangle in the surface to blend
+//      blend the subpicture rectangle into. Scaling can ocure if 
+//      XVMC_SUBPICTURE_INDEPENDENT_SCALING is set.
+//
+// Returns: Status
+***************************************************************************/
+Status XvMCBlendSubpicture2(Display *display, 
+                            XvMCSurface *source_surface,
+                            XvMCSurface *target_surface,
+                            XvMCSubpicture *subpicture,
+                            short subx, short suby,
+                            unsigned short subw, unsigned short subh,
+                            short surfx, short surfy,
+                            unsigned short surfw, unsigned short surfh)
+{
+    i915XvMCContext *pI915XvMC;
+    i915XvMCSubpicture *pI915Subpicture;
+    i915XvMCSurface *privSourceSurface;
+    i915XvMCSurface *privTargetSurface;
+
+    if (!display || !source_surface || !target_surface)
+        return BadValue;
+
+    if (!(privSourceSurface = source_surface->privData))
+        return (error_base + XvMCBadSurface);
+
+    if (!(privTargetSurface = target_surface->privData))
+        return (error_base + XvMCBadSurface);
+
+    if (!(pI915XvMC = privTargetSurface->privContext))
+        return (error_base + XvMCBadSurface);
+
+    if (((surfx + surfw) > privTargetSurface->width) ||
+        ((surfy + surfh) > privTargetSurface->height))
+        return BadValue;
+
+    if ((privSourceSurface->width != privTargetSurface->width) ||
+        (privTargetSurface->height != privTargetSurface->height))
+        return BadValue;
+
+    if (XvMCSyncSurface(display, source_surface))
+        return BadValue;
+
+    /* FIXME: update Target Surface */
+
+    if (subpicture) {
+        if (((subx + subw) > subpicture->width) ||
+            ((suby + subh) > subpicture->height))
+            return BadValue;
+
+        if (!(pI915Subpicture = subpicture->privData))
+            return (error_base + XvMCBadSubpicture);
+
+        if ((FOURCC_AI44 != subpicture->xvimage_id) &&
+            (FOURCC_IA44 != subpicture->xvimage_id))
+            return (error_base + XvMCBadSubpicture);
+
+        privTargetSurface->privSubPic = pI915Subpicture;
+    } else {
+        privTargetSurface->privSubPic = NULL;
+    }
+
+    return Success;
+}
+
+/***************************************************************************
+// Function: XvMCSyncSubpicture
+// Description: This function blocks until all composite/clear requests on
+//              the subpicture have been complete.
+// Arguments:
+//   display - Connection to the X server.
+//   subpicture - The subpicture to synchronize
+//
+// Returns: Status
+***************************************************************************/
+Status XvMCSyncSubpicture(Display *display, XvMCSubpicture *subpicture) 
+{
+    Status ret;
+    int stat = 0;
+
+    if (!display || !subpicture)
+        return BadValue;
+
+    do {
+        ret = XvMCGetSubpictureStatus(display, subpicture, &stat);
+    } while(!ret && (stat & XVMC_RENDERING));
+
+    return ret;
+}
+
+/***************************************************************************
+// Function: XvMCFlushSubpicture
+// Description: This function commits pending composite/clear requests to
+//              ensure that they will be completed in a finite amount of
+//              time.
+// Arguments:
+//   display - Connection to the X server.
+//   subpicture - The subpicture whos compsiting should be flushed
+//
+// Returns: Status
+***************************************************************************/
+Status XvMCFlushSubpicture(Display *display, XvMCSubpicture *subpicture) 
+{
+    i915XvMCSubpicture *pI915Subpicture;
+
+    if (!display || !subpicture)
+        return BadValue;
+
+    if (!(pI915Subpicture = subpicture->privData))
+        return (error_base + XvMCBadSubpicture);
+
+    return Success;
+}
+
+/***************************************************************************
+// Function: XvMCGetSubpictureStatus
+// Description: This function gets the current status of a subpicture
+//
+// Arguments:
+//   display - Connection to the X server.
+//   subpicture - The subpicture whos status is being queried
+//   stat - The status of the subpicture. It can be any of the following
+//          OR'd together:
+//          XVMC_RENDERING  - Last composite or clear request not completed
+//          XVMC_DISPLAYING - Suppicture currently being displayed.
+//
+// Returns: Status
+***************************************************************************/
+Status XvMCGetSubpictureStatus(Display *display, XvMCSubpicture *subpicture,
+                               int *stat) 
+{
+    i915XvMCSubpicture *pI915Subpicture;
+    i915XvMCContext *pI915XvMC;
+
+    if (!display || !subpicture || stat)
+        return BadValue;
+
+    *stat = 0;
+
+    if (!(pI915Subpicture = subpicture->privData))
+        return (error_base + XvMCBadSubpicture);
+
+    if (!(pI915XvMC = pI915Subpicture->privContext))
+        return (error_base + XvMCBadSubpicture);
+
+    // LOCK_HARDWARE(pI915XvMC);
+    PPTHREAD_MUTEX_LOCK(pI915XvMC);
+    /* FIXME: */
+    if (pI915Subpicture->last_render &&
+        (pI915Subpicture->last_render > pI915XvMC->sarea->last_dispatch)) {
+        *stat |= XVMC_RENDERING;
+    }
+
+    // UNLOCK_HARDWARE(pI915XvMC);
+    PPTHREAD_MUTEX_UNLOCK(pI915XvMC);
+    return Success;
+}
+
+/***************************************************************************
+// Function: XvMCQueryAttributes
+// Description: An array of XvAttributes of size "number" is returned by
+//   this function. If there are no attributes, NULL is returned and number
+//   is set to 0. The array may be freed with xfree().
+//
+// Arguments:
+//   display - Connection to the X server.
+//   context - The context whos attributes we are querying.
+//   number - The returned number of recognized atoms
+//
+// Returns:
+//  An array of XvAttributes.
+***************************************************************************/
+XvAttribute *XvMCQueryAttributes(Display *display, XvMCContext *context,
+                                 int *number) 
+{
+    /* now XvMC has no extra attribs than Xv */
+    *number = 0;
+    return NULL;
+}
+
+/***************************************************************************
+// Function: XvMCSetAttribute
+// Description: This function sets a context-specific attribute.
+//
+// Arguments:
+//   display - Connection to the X server.
+//   context - The context whos attributes we are querying.
+//   attribute - The X atom of the attribute to be changed.
+//   value - The new value for the attribute.
+//
+// Returns:
+//  Status
+***************************************************************************/
+Status XvMCSetAttribute(Display *display, XvMCContext *context,
+                        Atom attribute, int value)
+{
+    return Success;
+}
+
+/***************************************************************************
+// Function: XvMCGetAttribute
+// Description: This function queries a context-specific attribute and
+//   returns the value.
+//
+// Arguments:
+//   display - Connection to the X server.
+//   context - The context whos attributes we are querying.
+//   attribute - The X atom of the attribute to be queried
+//   value - The returned attribute value
+//
+// Returns:
+//  Status
+// Notes:
+***************************************************************************/
+Status XvMCGetAttribute(Display *display, XvMCContext *context,
+                        Atom attribute, int *value) 
+{
+    return Success;
+}
diff --git a/src/xvmc/I915XvMC.h b/src/xvmc/I915XvMC.h
new file mode 100644
index 0000000..78aea7d
--- /dev/null
+++ b/src/xvmc/I915XvMC.h
@@ -0,0 +1,191 @@
+/*
+ * Copyright © 2006 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Authors:
+ *    Xiang Haihao <haihao.xiang@intel.com>
+ *
+ */
+
+#ifndef _I915XVMC_H
+#define _I915XVMC_H
+
+/* #define XVMC_DEBUG(x) do {x; }while(0); */
+#define XVMC_DEBUG(x)
+
+#include "xf86drm.h"
+#include "i830_common.h"
+#include "i915_hwmc.h"
+#include <X11/Xlibint.h>
+#include <X11/Xutil.h>
+#include <signal.h>
+
+#define I915_SUBPIC_PALETTE_SIZE        16
+#define MAX_SUBCONTEXT_LEN              1024
+
+#define PCI_CHIP_I915_G                 0x2582
+#define PCI_CHIP_I915_GM                0x2592
+#define PCI_CHIP_I945_G                 0x2772
+#define PCI_CHIP_I945_GM                0x27A2
+#define PCI_CHIP_I945_GME               0x27AE
+#define PCI_CHIP_G33_G                  0x29C2
+#define PCI_CHIP_Q35_G                  0x29B2
+#define PCI_CHIP_Q33_G                  0x29D2
+
+/***************************************************************************
+// i915XvMCDrmMap: Holds the data about the DRM maps
+***************************************************************************/
+typedef struct _i915XvMCDrmMap {
+    drm_handle_t handle;
+    unsigned long offset;
+    unsigned long size;
+    unsigned long bus_addr;
+    drmAddress map;
+} i915XvMCDrmMap, *i915XvMCDrmMapPtr;
+
+/***************************************************************************
+// i915XvMCContext: Private Context data referenced via the privData
+//  pointer in the XvMCContext structure.
+***************************************************************************/
+typedef struct _i915XvMCContext {
+    unsigned int ctxno;
+    int fd;   /* File descriptor for /dev/dri */
+    unsigned int last_render;
+    unsigned int last_flip;
+    unsigned int dual_prime; /* Flag to identify when dual prime is in use. */
+    unsigned int yStride;
+    unsigned int uvStride;
+    unsigned short ref;
+    pthread_mutex_t ctxmutex;
+    char busIdString[21]; /* PCI:0:1:0 or PCI:0:2:0 */
+    int lock;   /* Lightweight lock to avoid locking twice */
+    int locked;
+    volatile drmI830Sarea *sarea;
+    
+    drmLock *driHwLock;
+    drm_context_t hHWContext; /* drmcontext; */
+    drm_handle_t hsarea;                /* Handle to drm shared memory area */
+    drmAddress sarea_address;	        /* Virtual address of shared memory area */
+    unsigned int sarea_size;                /* Size of drm shared memory area */
+    unsigned int sarea_priv_offset;	        /* Offset in sarea to private part */
+    unsigned int screen;
+    unsigned int depth;
+    XvPortID port;		       /* Xv Port ID when displaying */
+    int haveXv;                        /* Have I initialized the Xv
+                                        * connection for this surface? */
+    XvImage *xvImage;                  /* Fake Xv Image used for command
+                                        * buffer transport to the X server */
+    GC  gc;                            /* X GC needed for displaying */
+    Drawable draw;                     /* Drawable to undisplay from */
+    XID id;
+    XVisualInfo visualInfo;
+    void *drawHash;
+    int deviceID;
+
+    i915XvMCDrmMap sis;
+    i915XvMCDrmMap msb;
+    i915XvMCDrmMap ssb;
+    i915XvMCDrmMap psp;
+    i915XvMCDrmMap psc;
+
+    i915XvMCDrmMap corrdata;
+    i915XvMCDrmMap batchbuffer;
+
+    sigset_t sa_mask;
+
+    struct {
+        unsigned int start_offset;
+        unsigned int size;
+        unsigned int space;
+        unsigned char *ptr;
+    } batch;
+
+    struct 
+    {
+        void *ptr;
+        unsigned int size;
+        unsigned int offset;
+        unsigned int active_buf;
+        unsigned int irq_emitted;
+    } alloc;
+} i915XvMCContext;
+
+/***************************************************************************
+// i915XvMCSubpicture: Private data structure for each XvMCSubpicture. This
+//  structure is referenced by the privData pointer in the XvMCSubpicture
+//  structure.
+***************************************************************************/
+typedef struct _i915XvMCSubpicture {
+    unsigned int srfNo;
+    unsigned int last_render;
+    unsigned int last_flip;
+    unsigned int pitch;
+    unsigned char palette[3][16];
+    i915XvMCDrmMap srf;
+    i915XvMCContext *privContext;
+} i915XvMCSubpicture;
+
+/***************************************************************************
+// i915XvMCSurface: Private data structure for each XvMCSurface. This
+//  structure is referenced by the privData pointer in the XvMCSurface
+//  structure.
+***************************************************************************/
+#define I830_MAX_BUFS 2                   /*Number of YUV buffers per surface */
+typedef struct _i915XvMCSurface {
+    unsigned int srfNo;                    /* XvMC private surface numbers */
+    unsigned int last_render;
+    unsigned int last_flip;
+    unsigned int yStride;                  /* Stride of YUV420 Y component. */
+    unsigned int uvStride;
+    unsigned int width;                    /* Dimensions */
+    unsigned int height;
+    i915XvMCDrmMap srf;
+    i915XvMCContext *privContext;
+    i915XvMCSubpicture *privSubPic;     /* Subpicture to be blended when
+                                         * displaying. NULL if none. */
+} i915XvMCSurface;
+
+/* Subpicture fourcc */
+#define FOURCC_IA44 0x34344149
+
+/*
+  Definitions for temporary wire protocol hooks to be replaced
+  when a HW independent libXvMC is created.
+*/
+extern Status _xvmc_create_context(Display *dpy, XvMCContext *context,
+				   int *priv_count, uint **priv_data);
+
+extern Status _xvmc_destroy_context(Display *dpy, XvMCContext *context);
+
+extern Status _xvmc_create_surface(Display *dpy, XvMCContext *context,
+				   XvMCSurface *surface, int *priv_count,
+				   uint **priv_data);
+
+extern Status _xvmc_destroy_surface(Display *dpy, XvMCSurface *surface);
+
+extern Status  _xvmc_create_subpicture(Display *dpy, XvMCContext *context,
+				       XvMCSubpicture *subpicture,
+				       int *priv_count, uint **priv_data);
+
+extern Status   _xvmc_destroy_subpicture(Display *dpy,
+					 XvMCSubpicture *subpicture);
+
+#endif /* _I915XVMC_H */
diff --git a/src/xvmc/Makefile.am b/src/xvmc/Makefile.am
index b5c9db9..6733809 100644
--- a/src/xvmc/Makefile.am
+++ b/src/xvmc/Makefile.am
@@ -1,5 +1,6 @@
 if DRI
-lib_LTLIBRARIES=libI810XvMC.la
+lib_LTLIBRARIES=libI810XvMC.la libI915XvMC.la
+
 libI810XvMC_la_SOURCES = I810XvMC.c \
 			 I810XvMC.h
 
@@ -7,4 +8,17 @@ libI810XvMC_la_CFLAGS = @WARN_CFLAGS@ @XORG_CFLAGS@ @DRI_CFLAGS@ \
 	-I$(top_srcdir)/src -DTRUE=1 -DFALSE=0
 libI810XvMC_la_LDFLAGS = -version-number 1:0:0
 libI810XvMC_la_LIBADD = @DRI_LIBS@ 
+
+libI915XvMC_la_SOURCES = I915XvMC.c \
+                         I915XvMC.h \
+                         intel_batchbuffer.c \
+                         intel_batchbuffer.h \
+                         xf86dri.c \
+                         xf86dri.h \
+                         xf86dristr.h \
+                         driDrawable.c \
+                         driDrawable.h
+libI915XvMC_la_CFLAGS = @XORG_CFLAGS@ @DRI_CFLAGS@ -I$(top_srcdir)/src -DTRUE=1 -DFALSE=0
+libI915XvMC_la_LDFLAGS = -version-number 1:0:0
+libI915XvMC_la_LIBADD = @DRI_LIBS@
 endif
diff --git a/src/xvmc/driDrawable.c b/src/xvmc/driDrawable.c
new file mode 100644
index 0000000..8386334
--- /dev/null
+++ b/src/xvmc/driDrawable.c
@@ -0,0 +1,174 @@
+/*****************************************************************************
+ * driDrawable.c: Lean Version of DRI utilities.
+ *
+ * Copyright (c) 2005 Thomas Hellstrom. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHOR(S) OR COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+
+#include <X11/Xlibint.h>
+#include <X11/Xutil.h>
+#include "xf86drm.h"
+#include "drm.h"
+#include "xf86dri.h"
+#include "drm_sarea.h"
+#include "driDrawable.h"
+
+static unsigned
+drawStamp(volatile drm_sarea_t * pSarea, int index)
+{
+    return pSarea->drawableTable[index].stamp;
+}
+
+int
+getDRIDrawableInfoLocked(void *drawHash, Display * display, int screen,
+    Drawable draw, unsigned lockFlags, int drmFD, drm_context_t drmContext,
+    drmAddress sarea, Bool updateInfo, drawableInfo ** info,
+    unsigned long infoSize)
+{
+    drawableInfo *drawInfo;
+    void *res;
+    drm_drawable_t drmDraw = 0;
+    volatile drm_sarea_t *pSarea = (drm_sarea_t *) sarea;
+    drm_clip_rect_t *clipFront, *clipBack;
+
+    int ret;
+
+    if (drmHashLookup(drawHash, (unsigned long)draw, &res)) {
+
+	/*
+	 * The drawable is unknown to us. Create it and put it in the
+	 * hash table.
+	 */
+
+	DRM_UNLOCK(drmFD, &pSarea->lock, drmContext);
+	if (!uniDRICreateDrawable(display, screen, draw, &drmDraw)) {
+	    DRM_LOCK(drmFD, &pSarea->lock, drmContext, lockFlags);
+	    return 1;
+	}
+	DRM_LOCK(drmFD, &pSarea->lock, drmContext, lockFlags);
+
+	drawInfo = (drawableInfo *) malloc(infoSize);
+	if (!drawInfo)
+	    return 1;
+
+	drawInfo->drmDraw = drmDraw;
+	drawInfo->stamp = 0;
+	drawInfo->clipFront = 0;
+	drawInfo->clipBack = 0;
+
+	drmHashInsert(drawHash, (unsigned long)draw, drawInfo);
+
+    } else {
+	drawInfo = res;
+    }
+
+    drawInfo->touched = FALSE;
+    while (!drawInfo->clipFront
+	|| drawInfo->stamp != drawStamp(pSarea, drawInfo->index)) {
+
+	/*
+	 * The drawable has been touched since we last got info about it.
+	 * obtain new info from the X server.
+	 */
+
+	drawInfo->touched = TRUE;
+
+	if (updateInfo || !drawInfo->clipFront) {
+	    DRM_UNLOCK(drmFD, &pSarea->lock, drmContext);
+
+	    ret = uniDRIGetDrawableInfo(display, screen, draw,
+		&drawInfo->index, &drawInfo->stamp, &drawInfo->x,
+		&drawInfo->y, &drawInfo->w, &drawInfo->h,
+		&drawInfo->numClipFront, &clipFront,
+		&drawInfo->backX, &drawInfo->backY,
+		&drawInfo->numClipBack, &clipBack);
+
+	    DRM_LIGHT_LOCK(drmFD, &pSarea->lock, drmContext);
+
+	    /*
+	     * Error. Probably the drawable is destroyed. Return error and old values.
+	     */
+
+	    if (!ret) {
+		free(drawInfo);
+		drawInfo = NULL;
+		drmHashDelete(drawHash, (unsigned long)draw);
+
+		DRM_UNLOCK(drmFD, &pSarea->lock, drmContext);
+		uniDRIDestroyDrawable(display, screen, draw);
+		DRM_LOCK(drmFD, &pSarea->lock, drmContext, lockFlags);
+
+		return 1;
+	    }
+
+	    if (drawInfo->stamp != drawStamp(pSarea, drawInfo->index)) {
+
+		/*
+		 * The info is already outdated. Sigh. Have another go.
+		 */
+
+		XFree(clipFront);
+		XFree(clipBack);
+		continue;
+	    }
+
+	    if (drawInfo->clipFront)
+		XFree(drawInfo->clipFront);
+	    drawInfo->clipFront = clipFront;
+	    if (drawInfo->clipBack)
+		XFree(drawInfo->clipBack);
+	    drawInfo->clipBack = clipBack;
+	} else {
+	    if (!drawInfo->clipFront)
+		drawInfo->clipFront = (drm_clip_rect_t *) ~ 0UL;
+	    drawInfo->stamp = drawStamp(pSarea, drawInfo->index);
+	}
+    }
+    *info = drawInfo;
+    return 0;
+}
+
+void
+driDestroyHashContents(void *drawHash)
+{
+    unsigned long key;
+    void *content;
+    drawableInfo *drawInfo;
+
+    if (drmHashFirst(drawHash, &key, &content) < 1)
+	return;
+    drawInfo = (drawableInfo *) content;
+    if (drawInfo->clipBack)
+	XFree(drawInfo->clipBack);
+    if (drawInfo->clipFront)
+	XFree(drawInfo->clipFront);
+    free(drawInfo);
+    while (drmHashNext(drawHash, &key, &content) == 1) {
+	drawInfo = (drawableInfo *) content;
+	if (drawInfo->clipBack)
+	    XFree(drawInfo->clipBack);
+	if (drawInfo->clipFront)
+	    XFree(drawInfo->clipFront);
+	free(drawInfo);
+    }
+
+    return;
+}
diff --git a/src/xvmc/driDrawable.h b/src/xvmc/driDrawable.h
new file mode 100644
index 0000000..a758c7c
--- /dev/null
+++ b/src/xvmc/driDrawable.h
@@ -0,0 +1,64 @@
+/*****************************************************************************
+ * driDrawable.h: Lean Version of DRI utilities.
+ *
+ * Copyright (c) 2005 Thomas Hellstrom. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHOR(S) OR COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _DRIDRAWABLE_H
+#define _DRIDRAWABLE_H
+
+typedef struct _drawableInfo
+{
+    drm_drawable_t drmDraw;
+    unsigned stamp;
+    unsigned index;
+    drm_clip_rect_t *clipFront;
+    drm_clip_rect_t *clipBack;
+    int x;
+    int y;
+    int w;
+    int h;
+    int backX;
+    int backY;
+    int numClipFront;
+    int numClipBack;
+    Bool touched;
+} drawableInfo;
+
+/*
+ * Get updated info about the drawable "draw". The drawableInfo record returned is malloced
+ * and administrated internally. Never free it unless you know exactly what you are doing.
+ * The drm hash table "drawHash" needs to be initialized externally.
+ */
+
+extern int
+getDRIDrawableInfoLocked(void *drawHash, Display * display, int screen,
+    Drawable draw, unsigned lockFlags, int drmFD, drm_context_t drmContext,
+    drmAddress sarea, Bool updateInfo, drawableInfo ** info,
+    unsigned long infoSize);
+
+/*
+ * Free all resources created by the above function. Typically done on exit.
+ */
+
+extern void driDestroyHashContents(void *drawHash);
+
+#endif
diff --git a/src/xvmc/i915_program.h b/src/xvmc/i915_program.h
new file mode 100644
index 0000000..82c920e
--- /dev/null
+++ b/src/xvmc/i915_program.h
@@ -0,0 +1,276 @@
+#ifndef _I915_PROGRAM_H
+#define _I915_PROGRAM_H
+
+#define REG_TYPE_R                 0    /* temporary regs, no need to
+                                         * dcl, must be written before
+                                         * read -- Preserved between
+                                         * phases.
+                                         */
+#define REG_TYPE_T                 1    /* Interpolated values, must be
+                                         * dcl'ed before use.
+                                         *
+                                         * 0..7: texture coord,
+                                         * 8: diffuse spec,
+                                         * 9: specular color,
+                                         * 10: fog parameter in w.
+                                         */
+#define REG_TYPE_CONST             2    /* Restriction: only one const
+                                         * can be referenced per
+                                         * instruction, though it may be
+                                         * selected for multiple inputs.
+                                         * Constants not initialized
+                                         * default to zero.
+                                         */
+#define REG_TYPE_S                 3    /* sampler */
+#define REG_TYPE_OC                4    /* output color (rgba) */
+#define REG_TYPE_OD                5    /* output depth (w), xyz are
+                                         * temporaries.  If not written,
+                                         * interpolated depth is used?
+                                         */
+#define REG_TYPE_U                 6    /* unpreserved temporaries */
+#define REG_TYPE_MASK              0x7
+#define REG_NR_MASK                0xf
+
+/* REG_TYPE_T:
+ */
+#define T_TEX0     0
+#define T_TEX1     1
+#define T_TEX2     2
+#define T_TEX3     3
+#define T_TEX4     4
+#define T_TEX5     5
+#define T_TEX6     6
+#define T_TEX7     7
+#define T_DIFFUSE  8
+#define T_SPECULAR 9
+#define T_FOG_W    10           /* interpolated fog is in W coord */
+
+/* Arithmetic instructions */
+
+/* .replicate_swizzle == selection and replication of a particular
+ * scalar channel, ie., .xxxx, .yyyy, .zzzz or .wwww
+ */
+#define A0_NOP    (0x0<<24)     /* no operation */
+#define A0_ADD    (0x1<<24)     /* dst = src0 + src1 */
+#define A0_MOV    (0x2<<24)     /* dst = src0 */
+#define A0_MUL    (0x3<<24)     /* dst = src0 * src1 */
+#define A0_MAD    (0x4<<24)     /* dst = src0 * src1 + src2 */
+#define A0_DP2ADD (0x5<<24)     /* dst.xyzw = src0.xy dot src1.xy + src2.replicate_swizzle */
+#define A0_DP3    (0x6<<24)     /* dst.xyzw = src0.xyz dot src1.xyz */
+#define A0_DP4    (0x7<<24)     /* dst.xyzw = src0.xyzw dot src1.xyzw */
+#define A0_FRC    (0x8<<24)     /* dst = src0 - floor(src0) */
+#define A0_RCP    (0x9<<24)     /* dst.xyzw = 1/(src0.replicate_swizzle) */
+#define A0_RSQ    (0xa<<24)     /* dst.xyzw = 1/(sqrt(abs(src0.replicate_swizzle))) */
+#define A0_EXP    (0xb<<24)     /* dst.xyzw = exp2(src0.replicate_swizzle) */
+#define A0_LOG    (0xc<<24)     /* dst.xyzw = log2(abs(src0.replicate_swizzle)) */
+#define A0_CMP    (0xd<<24)     /* dst = (src0 >= 0.0) ? src1 : src2 */
+#define A0_MIN    (0xe<<24)     /* dst = (src0 < src1) ? src0 : src1 */
+#define A0_MAX    (0xf<<24)     /* dst = (src0 >= src1) ? src0 : src1 */
+#define A0_FLR    (0x10<<24)    /* dst = floor(src0) */
+#define A0_MOD    (0x11<<24)    /* dst = src0 fmod 1.0 */
+#define A0_TRC    (0x12<<24)    /* dst = int(src0) */
+#define A0_SGE    (0x13<<24)    /* dst = src0 >= src1 ? 1.0 : 0.0 */
+#define A0_SLT    (0x14<<24)    /* dst = src0 < src1 ? 1.0 : 0.0 */
+#define A0_DEST_SATURATE                 (1<<22)
+#define A0_DEST_TYPE_SHIFT                19
+/* Allow: R, OC, OD, U */
+#define A0_DEST_NR_SHIFT                 14
+/* Allow R: 0..15, OC,OD: 0..0, U: 0..2 */
+#define A0_DEST_CHANNEL_X                (1<<10)
+#define A0_DEST_CHANNEL_Y                (2<<10)
+#define A0_DEST_CHANNEL_Z                (4<<10)
+#define A0_DEST_CHANNEL_W                (8<<10)
+#define A0_DEST_CHANNEL_ALL              (0xf<<10)
+#define A0_DEST_CHANNEL_SHIFT            10
+#define A0_SRC0_TYPE_SHIFT               7
+#define A0_SRC0_NR_SHIFT                 2
+
+#define A0_DEST_CHANNEL_XY              (A0_DEST_CHANNEL_X|A0_DEST_CHANNEL_Y)
+#define A0_DEST_CHANNEL_XYZ             (A0_DEST_CHANNEL_XY|A0_DEST_CHANNEL_Z)
+
+#define SRC_X        0
+#define SRC_Y        1
+#define SRC_Z        2
+#define SRC_W        3
+#define SRC_ZERO     4
+#define SRC_ONE      5
+
+#define A1_SRC0_CHANNEL_X_NEGATE         (1<<31)
+#define A1_SRC0_CHANNEL_X_SHIFT          28
+#define A1_SRC0_CHANNEL_Y_NEGATE         (1<<27)
+#define A1_SRC0_CHANNEL_Y_SHIFT          24
+#define A1_SRC0_CHANNEL_Z_NEGATE         (1<<23)
+#define A1_SRC0_CHANNEL_Z_SHIFT          20
+#define A1_SRC0_CHANNEL_W_NEGATE         (1<<19)
+#define A1_SRC0_CHANNEL_W_SHIFT          16
+#define A1_SRC1_TYPE_SHIFT               13
+#define A1_SRC1_NR_SHIFT                 8
+#define A1_SRC1_CHANNEL_X_NEGATE         (1<<7)
+#define A1_SRC1_CHANNEL_X_SHIFT          4
+#define A1_SRC1_CHANNEL_Y_NEGATE         (1<<3)
+#define A1_SRC1_CHANNEL_Y_SHIFT          0
+
+#define A2_SRC1_CHANNEL_Z_NEGATE         (1<<31)
+#define A2_SRC1_CHANNEL_Z_SHIFT          28
+#define A2_SRC1_CHANNEL_W_NEGATE         (1<<27)
+#define A2_SRC1_CHANNEL_W_SHIFT          24
+#define A2_SRC2_TYPE_SHIFT               21
+#define A2_SRC2_NR_SHIFT                 16
+#define A2_SRC2_CHANNEL_X_NEGATE         (1<<15)
+#define A2_SRC2_CHANNEL_X_SHIFT          12
+#define A2_SRC2_CHANNEL_Y_NEGATE         (1<<11)
+#define A2_SRC2_CHANNEL_Y_SHIFT          8
+#define A2_SRC2_CHANNEL_Z_NEGATE         (1<<7)
+#define A2_SRC2_CHANNEL_Z_SHIFT          4
+#define A2_SRC2_CHANNEL_W_NEGATE         (1<<3)
+#define A2_SRC2_CHANNEL_W_SHIFT          0
+
+/* Declaration instructions */
+#define D0_DCL       (0x19<<24) /* Declare a t (interpolated attrib)
+                                 * register or an s (sampler)
+                                 * register. */
+#define D0_SAMPLE_TYPE_SHIFT              22
+#define D0_SAMPLE_TYPE_2D                 (0x0<<22)
+#define D0_SAMPLE_TYPE_CUBE               (0x1<<22)
+#define D0_SAMPLE_TYPE_VOLUME             (0x2<<22)
+#define D0_SAMPLE_TYPE_MASK               (0x3<<22)
+
+#define D0_TYPE_SHIFT                19
+/* Allow: T, S */
+#define D0_NR_SHIFT                  14
+/* Allow T: 0..10, S: 0..15 */
+#define D0_CHANNEL_X                (1<<10)
+#define D0_CHANNEL_Y                (2<<10)
+#define D0_CHANNEL_Z                (4<<10)
+#define D0_CHANNEL_W                (8<<10)
+#define D0_CHANNEL_ALL              (0xf<<10)
+#define D0_CHANNEL_NONE             (0<<10)
+
+#define D0_CHANNEL_XY               (D0_CHANNEL_X|D0_CHANNEL_Y)
+#define D0_CHANNEL_XYZ              (D0_CHANNEL_XY|D0_CHANNEL_Z)
+
+/* I915 Errata: Do not allow (xz), (xw), (xzw) combinations for diffuse
+ * or specular declarations.
+ *
+ * For T dcls, only allow: (x), (xy), (xyz), (w), (xyzw)
+ *
+ * Must be zero for S (sampler) dcls
+ */
+#define D1_MBZ                          0
+#define D2_MBZ                          0
+
+/* Texture instructions */
+#define T0_TEXLD     (0x15<<24) /* Sample texture using predeclared
+                                 * sampler and address, and output
+                                 * filtered texel data to destination
+                                 * register */
+#define T0_TEXLDP    (0x16<<24) /* Same as texld but performs a
+                                 * perspective divide of the texture
+                                 * coordinate .xyz values by .w before
+                                 * sampling. */
+#define T0_TEXLDB    (0x17<<24) /* Same as texld but biases the
+                                 * computed LOD by w.  Only S4.6 two's
+                                 * comp is used.  This implies that a
+                                 * float to fixed conversion is
+                                 * done. */
+#define T0_TEXKILL   (0x18<<24) /* Does not perform a sampling
+                                 * operation.  Simply kills the pixel
+                                 * if any channel of the address
+                                 * register is < 0.0. */
+#define T0_DEST_TYPE_SHIFT                19
+/* Allow: R, OC, OD, U */
+/* Note: U (unpreserved) regs do not retain their values between
+ * phases (cannot be used for feedback)
+ *
+ * Note: oC and OD registers can only be used as the destination of a
+ * texture instruction once per phase (this is an implementation
+ * restriction).
+ */
+#define T0_DEST_NR_SHIFT                 14
+/* Allow R: 0..15, OC,OD: 0..0, U: 0..2 */
+#define T0_SAMPLER_NR_SHIFT              0      /* This field ignored for TEXKILL */
+#define T0_SAMPLER_NR_MASK               (0xf<<0)
+
+#define T1_ADDRESS_REG_TYPE_SHIFT        24     /* Reg to use as texture coord */
+/* Allow R, T, OC, OD -- R, OC, OD are 'dependent' reads, new program phase */
+#define T1_ADDRESS_REG_NR_SHIFT          17
+#define T2_MBZ                           0
+
+
+/* Having zero and one in here makes the definition of swizzle a lot
+ * easier.
+ */
+#define UREG_TYPE_SHIFT               29
+#define UREG_NR_SHIFT                 24
+#define UREG_CHANNEL_X_NEGATE_SHIFT   23
+#define UREG_CHANNEL_X_SHIFT          20
+#define UREG_CHANNEL_Y_NEGATE_SHIFT   19
+#define UREG_CHANNEL_Y_SHIFT          16
+#define UREG_CHANNEL_Z_NEGATE_SHIFT   15
+#define UREG_CHANNEL_Z_SHIFT          12
+#define UREG_CHANNEL_W_NEGATE_SHIFT   11
+#define UREG_CHANNEL_W_SHIFT          8
+#define UREG_CHANNEL_ZERO_NEGATE_MBZ  5
+#define UREG_CHANNEL_ZERO_SHIFT       4
+#define UREG_CHANNEL_ONE_NEGATE_MBZ   1
+#define UREG_CHANNEL_ONE_SHIFT        0
+
+#define UREG_BAD          0xffffffff    /* not a valid ureg */
+
+#define X    SRC_X
+#define Y    SRC_Y
+#define Z    SRC_Z
+#define W    SRC_W
+#define ZERO SRC_ZERO
+#define ONE  SRC_ONE
+
+/* Construct a ureg:
+ */
+#define UREG(type, nr) (((type) << UREG_TYPE_SHIFT) |           \
+                        ((nr)  << UREG_NR_SHIFT) |              \
+                        (X     << UREG_CHANNEL_X_SHIFT) |       \
+                        (Y     << UREG_CHANNEL_Y_SHIFT) |       \
+                        (Z     << UREG_CHANNEL_Z_SHIFT) |       \
+                        (W     << UREG_CHANNEL_W_SHIFT) |       \
+                        (ZERO  << UREG_CHANNEL_ZERO_SHIFT) |    \
+                        (ONE   << UREG_CHANNEL_ONE_SHIFT))
+
+#define GET_CHANNEL_SRC( reg, channel ) ((reg<<(channel*4)) & (0xf<<20))
+#define CHANNEL_SRC( src, channel ) (src>>(channel*4))
+
+#define GET_UREG_TYPE(reg) (((reg) >> UREG_TYPE_SHIFT) & REG_TYPE_MASK)
+#define GET_UREG_NR(reg)   (((reg) >> UREG_NR_SHIFT) & REG_NR_MASK)
+
+#define UREG_XYZW_CHANNEL_MASK 0x00ffff00
+
+#define A0_DEST(reg) (((reg) & UREG_TYPE_NR_MASK) >> UREG_A0_DEST_SHIFT_LEFT)
+#define D0_DEST(reg) (((reg) & UREG_TYPE_NR_MASK) >> UREG_A0_DEST_SHIFT_LEFT)
+#define T0_DEST(reg) (((reg) & UREG_TYPE_NR_MASK) >> UREG_A0_DEST_SHIFT_LEFT)
+#define A0_SRC0(reg) (((reg) & UREG_MASK) >> UREG_A0_SRC0_SHIFT_LEFT)
+#define A1_SRC0(reg) (((reg) & UREG_MASK) << UREG_A1_SRC0_SHIFT_RIGHT)
+#define A1_SRC1(reg) (((reg) & UREG_MASK) >> UREG_A1_SRC1_SHIFT_LEFT)
+#define A2_SRC1(reg) (((reg) & UREG_MASK) << UREG_A2_SRC1_SHIFT_RIGHT)
+#define A2_SRC2(reg) (((reg) & UREG_MASK) >> UREG_A2_SRC2_SHIFT_LEFT)
+
+/* These are special, and don't have swizzle/negate bits.
+ */
+#define T0_SAMPLER( reg )     (GET_UREG_NR(reg) << T0_SAMPLER_NR_SHIFT)
+#define T1_ADDRESS_REG( reg ) ((GET_UREG_NR(reg) << T1_ADDRESS_REG_NR_SHIFT) | \
+                               (GET_UREG_TYPE(reg) << T1_ADDRESS_REG_TYPE_SHIFT))
+
+
+/* Macros for translating UREG's into the various register fields used
+ * by the I915 programmable unit.
+ */
+#define UREG_A0_DEST_SHIFT_LEFT  (UREG_TYPE_SHIFT - A0_DEST_TYPE_SHIFT)
+#define UREG_A0_SRC0_SHIFT_LEFT  (UREG_TYPE_SHIFT - A0_SRC0_TYPE_SHIFT)
+#define UREG_A1_SRC0_SHIFT_RIGHT (A1_SRC0_CHANNEL_W_SHIFT - UREG_CHANNEL_W_SHIFT)
+#define UREG_A1_SRC1_SHIFT_LEFT  (UREG_TYPE_SHIFT - A1_SRC1_TYPE_SHIFT)
+#define UREG_A2_SRC1_SHIFT_RIGHT (A2_SRC1_CHANNEL_W_SHIFT - UREG_CHANNEL_W_SHIFT)
+#define UREG_A2_SRC2_SHIFT_LEFT  (UREG_TYPE_SHIFT - A2_SRC2_TYPE_SHIFT)
+
+#define UREG_MASK         0xffffff00
+#define UREG_TYPE_NR_MASK ((REG_TYPE_MASK << UREG_TYPE_SHIFT) | \
+                           (REG_NR_MASK << UREG_NR_SHIFT))
+
+#endif
diff --git a/src/xvmc/i915_structs.h b/src/xvmc/i915_structs.h
new file mode 100644
index 0000000..a25d734
--- /dev/null
+++ b/src/xvmc/i915_structs.h
@@ -0,0 +1,973 @@
+/*
+ * Copyright © 2006 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Authors:
+ *    Xiang Haihao <haihao.xiang@intel.com>
+ *
+ */
+
+#ifndef _I915_STRUCTS_H
+#define _I915_STRUCTS_H
+
+/* MI_INSTRUCTION */
+#define CMD_MI          0x00
+
+#define OPC_MI_FLUSH                            (0x04)
+
+struct i915_mi_flush
+{
+    struct {
+        unsigned map_cache_invalidate : 1;
+        unsigned pad0 : 1;
+        unsigned render_cache_flush_inhibit : 1;
+        unsigned scene_count : 1;
+        unsigned end_scene : 1;
+        unsigned pad1 : 18;
+        unsigned opcode : 6;
+        unsigned type : 3;
+    } dw0;
+};
+
+/* BLT */
+#define CMD_2D          0x02
+#define OPC_COLOR_BLT                           (0x40)
+
+struct i915_color_blt
+{
+    struct {
+        unsigned length : 5;
+        unsigned pad0 : 15;
+        unsigned bpp_mask : 2;
+        unsigned opcode : 7;
+        unsigned type : 3;
+    } dw0;
+
+    struct {
+        unsigned pitch : 16;
+        unsigned rop : 8;
+        unsigned color_depth : 2;
+        unsigned pad0 : 6;
+    } dw1;
+
+    struct {
+        unsigned width : 16;
+        unsigned height : 16;
+    } dw2;
+
+    struct {
+        unsigned address;
+    } dw3;
+
+    struct {
+        unsigned pattern;
+    } dw4;
+};
+
+/* 3D_INSTRUCTION */
+#define CMD_3D          0x03
+
+#define OPC_3DMPEG_MACROBLOCK_IPICTURE          (0x01 + (0x1e << 5))
+#define OPC_3DMPEG_SET_ORIGIN                   (0x10 + (0x1e << 5))
+#define OPC_3DMPEG_MACROBLOCK                   (0x11 + (0x1e << 5))        
+#define OPC_3DMPEG_SLICE                        (0x12 + (0x1e << 5))
+#define OPC_3DMPEG_QM_PALETTE_LOAD              (0x13 + (0x1e << 5))
+
+#define OPC_3DSTATE_SCISSOR_ENABLE              (0x10 + (0x1c << 5))
+
+#define OPC_3DSTATE_MAP_STATE                   (0x00 + (0x1d << 8))
+#define OPC_3DSTATE_SAMPLER_STATE               (0x01 + (0x1d << 8))
+#define OPC_3DSTATE_LOAD_STATE_IMMEDIATE_1      (0x04 + (0x1d << 8))
+#define OPC_3DSTATE_PIXEL_SHADER_PROGRAM        (0x05 + (0x1d << 8))
+#define OPC_3DSTATE_PIXEL_SHADER_CONSTANTS      (0x06 + (0x1d << 8))
+#define OPC_3DSTATE_LOAD_INDIRECT               (0x07 + (0x1d << 8))
+
+#define OPC_3DSTATE_MODES_5                     (0x0c)
+#define OPC_3DSTATE_COORD_SET_BINDINGS          (0x16)
+#define OPC_3DPRIMITIVE                         (0x1f)
+
+#define OPC_3DSTATE_DRAWING_RECTANGLE           (0x80 + (0x1d << 8))
+#define OPC_3DSTATE_SCISSOR_RECTANGLE           (0x81 + (0x1d << 8))
+#define OPC_3DSTATE_DEST_BUFFER_VARIABLES       (0x85 + (0x1d << 8))
+#define OPC_3DSTATE_DEST_BUFFER_VARIABLES_MPEG  (0x87 + (0x1d << 8))
+#define OPC_3DSTATE_BUFFER_INFO                 (0x8e + (0x1d << 8))
+
+/*
+ * 3DMPEG instructions
+ */
+struct i915_3dmpeg_macroblock_header
+{
+    struct {
+        unsigned length : 19;
+        unsigned opcode : 10;
+        unsigned type : 3;
+    } dw0;
+    
+    struct {
+        unsigned mb_intra : 1;
+        unsigned forward : 1;
+        unsigned backward : 1;
+        unsigned h263_4mv : 1;
+        unsigned pad0 : 1;
+        unsigned dct_type : 1;
+        unsigned pad1 : 2;
+        unsigned motion_type : 2;
+        unsigned pad2 : 2;
+        unsigned vertical_field_select : 4;
+        unsigned coded_block_pattern : 6;
+        unsigned pad3 : 2;
+        unsigned skipped_macroblocks : 7;
+        unsigned pad4 : 1;
+    } dw1;
+};
+
+struct i915_3dmpeg_macroblock_0mv
+{
+    struct i915_3dmpeg_macroblock_header header;
+};
+
+struct i915_3dmpeg_macroblock_1fbmv
+{
+    struct i915_3dmpeg_macroblock_header header;    
+    unsigned dw2;
+    unsigned dw3;
+};
+struct i915_3dmpeg_macroblock_2fbmv
+{
+    struct i915_3dmpeg_macroblock_header header;
+    unsigned dw2;
+    unsigned dw3;
+    unsigned dw4;
+    unsigned dw5;
+};
+
+struct i915_3dmpeg_macroblock_5fmv
+{
+    struct i915_3dmpeg_macroblock_header header;
+    unsigned dw2;
+    unsigned dw3;
+    unsigned dw4;
+    unsigned dw5;
+    unsigned dw6;
+};
+  
+struct i915_3dmpeg_macroblock_ipicture
+{
+    struct {
+        unsigned pad0 : 5;
+        unsigned dct_type : 1;
+        unsigned pad1 : 13;
+        unsigned opcode : 10;
+        unsigned type : 3;
+    } dw0;
+};
+
+struct i915_3dmpeg_set_origin
+{
+    struct {
+        unsigned length : 19;
+        unsigned opcode : 10;
+        unsigned type : 3;
+    } dw0;
+
+    struct {
+        unsigned v_origin : 7;
+        unsigned pad0 : 1;
+        unsigned h_origin : 7;
+        unsigned pad1 : 17;
+    } dw1;
+};
+      
+struct i915_3dmpeg_slice
+{
+    struct {
+        unsigned length : 19;
+        unsigned opcode : 10;
+        unsigned type : 3;
+    } dw0;
+    
+    struct {
+        unsigned fst_mb_bit_off : 3;
+        unsigned pad0 : 5;
+        unsigned mb_count : 7;
+        unsigned pad1 : 1;
+        unsigned v_position : 7;
+        unsigned pad2 : 1;
+        unsigned h_position : 7;
+        unsigned pad3 : 1;
+    } dw1;
+
+    struct {
+        unsigned length_minus_one : 17;
+        unsigned pad0 : 7;
+        unsigned qt_scale_code : 5;
+        unsigned pad1 : 3;
+    } dw2;
+};
+
+struct i915_3dmpeg_qm_palette_load
+{
+    struct {
+        unsigned length : 4;
+        unsigned pad0 : 15;
+        unsigned opcode : 10;
+        unsigned type : 3;
+    } dw0;
+    
+    unsigned quantmatrix[16];    
+};        
+
+
+/*
+ * 3DSTATE instruction
+ */
+#define BUFFERID_COLOR_BACK     3
+#define BUFFERID_COLOR_AUX      4
+#define BUFFERID_MC_INTRA_CORR  5
+#define BUFFERID_DEPTH          7
+
+#define TILEWALK_XMAJOR         0
+#define TILEWALK_YMAJOR         1
+
+struct i915_3dstate_buffer_info
+{
+    struct {
+        unsigned length : 16;
+        unsigned opcode : 13;
+        unsigned type : 3;
+    } dw0;
+
+    struct {
+        unsigned pad0 : 2;
+        unsigned pitch : 12;
+        unsigned pad1 : 7;
+        unsigned walk : 1;
+        unsigned tiled_surface : 1;
+        unsigned fence_regs : 1;
+        unsigned buffer_id : 4;
+        unsigned aux_id : 1;
+        unsigned pad2 : 3;
+    } dw1;
+
+    struct {
+        unsigned pad0 : 2;
+        unsigned base_address : 27;
+        unsigned pad1 : 3;
+    } dw2;
+};
+
+#define COLORBUFFER_8BIT         0x00
+#define COLORBUFFER_X1R5G5B5     0x01
+#define COLORBUFFER_R5G6B5       0x02
+#define COLORBUFFER_A8R8G8B8     0x03
+#define COLORBUFFER_YCRCB_SWAP   0x04
+#define COLORBUFFER_YCRCB_NORMAL 0x05
+#define COLORBUFFER_YCRCB_SWAPUV 0x06
+#define COLORBUFFER_YCRCB_SWAPUVY   0x07
+#define COLORBUFFER_A4R4G4B4     0x08
+#define COLORBUFFER_A1R5G5B5     0x09
+#define COLORBUFFER_A2R10G10B10  0x0a
+
+
+struct i915_3dstate_dest_buffer_variables
+{
+    struct {
+        unsigned length : 16;
+        unsigned opcode : 13;
+        unsigned type : 3;
+    } dw0;
+    
+    struct {
+        unsigned v_ls_offset : 1;
+        unsigned v_ls : 1;
+        unsigned depth_fmt : 2;
+        unsigned pad0 : 4;
+        unsigned color_fmt : 4;
+        unsigned yuv422_select : 3;
+        unsigned pad1 : 1;
+        unsigned dest_v_bias : 4;
+        unsigned dest_h_bias : 4;
+        unsigned dither_enhancement : 1;
+        unsigned linear_gamma : 1;
+        unsigned dither_pattern : 2;
+        unsigned lod_preclamp : 1;
+        unsigned edt_zone : 1;          /* early depth test in zone rendering */
+        unsigned texture_default_color : 1;
+        unsigned edt_classic : 1;       /* early depth test in classic mode */
+    } dw1;
+};
+
+#define MPEG_DECODE_MC          0
+#define MPEG_DECODE_VLD_IDCT_MC 1
+
+#define MPEG_I_PICTURE          1
+#define MPEG_P_PICTURE          2
+#define MPEG_B_PICTURE          3
+
+#define MC_SUB_1H               0
+#define MC_SUB_2H               1
+#define MC_SUB_4H               2
+
+#define MC_SUB_1V               0
+#define MC_SUB_2V               1
+
+struct i915_3dstate_dest_buffer_variables_mpeg
+{
+    struct {
+        unsigned length : 16;
+        unsigned opcode : 13;
+        unsigned type : 3;
+    } dw0;
+
+    struct {
+        unsigned picture_width : 7;
+        unsigned pad0 : 1;
+        unsigned v_subsample_factor : 2;
+        unsigned h_subsample_factor : 2;
+        unsigned tff : 1;
+        unsigned mismatch : 1;
+        unsigned pad1 : 1;
+        unsigned intra8 : 1;
+        unsigned abort_on_error : 8;
+        unsigned pad2 : 4;
+        unsigned bidir_avrg_control : 1;
+        unsigned rcontrol : 1;
+        unsigned decode_mode : 2;
+    } dw1;
+        
+    struct {
+        unsigned pad0 : 1;
+        unsigned picture_coding_type : 2;
+        unsigned pad1 : 2;
+        unsigned scan_order : 1;
+        unsigned pad2 : 2;
+        unsigned q_scale_type : 1;
+        unsigned concealment : 1;
+        unsigned fpf_dct : 1;
+        unsigned pad3 : 2;
+        unsigned intra_dc : 2;
+        unsigned intra_vlc : 1;
+        unsigned f_code00 : 4;
+        unsigned f_code01 : 4;
+        unsigned f_code10 : 4;
+        unsigned f_code11 : 4;
+    } dw2;
+};
+
+#define MAP_MAP0        0x0001
+#define MAP_MAP1        0x0002
+#define MAP_MAP2        0x0004
+#define MAP_MAP3        0x0008
+#define MAP_MAP4        0x0010
+#define MAP_MAP5        0x0020
+#define MAP_MAP6        0x0040
+#define MAP_MAP7        0x0080
+#define MAP_MAP8        0x0100
+#define MAP_MAP9        0x0200
+#define MAP_MAP10       0x0400
+#define MAP_MAP11       0x0800
+#define MAP_MAP12       0x1000
+#define MAP_MAP13       0x2000
+#define MAP_MAP14       0x4000
+#define MAP_MAP15       0x8000
+
+struct texture_map
+{
+    struct {
+        unsigned v_ls_offset : 1;
+        unsigned v_ls : 1;
+        unsigned base_address : 27;
+        unsigned pad0 : 2;
+        unsigned untrusted : 1;
+    } tm0;
+
+    struct {
+        unsigned tile_walk : 1;
+        unsigned tiled_surface : 1;
+        unsigned utilize_fence_regs : 1;
+        unsigned texel_fmt : 4;
+        unsigned surface_fmt : 3;
+        unsigned width : 11;
+        unsigned height : 11;
+    } tm1;
+    
+    struct {
+        unsigned depth : 8;
+        unsigned mipmap_layout : 1;
+        unsigned max_lod : 6;
+        unsigned cube_face : 6;
+        unsigned pitch : 11;
+    } tm2;
+};
+
+struct i915_3dstate_map_state
+{
+    struct {
+        unsigned length : 6;
+        unsigned pad0 : 9;
+        unsigned retain : 1;
+        unsigned opcode : 13;
+        unsigned type : 3;
+    } dw0;
+
+    struct {
+        unsigned map_mask : 16;
+        unsigned pad0 : 16;
+    } dw1;
+//    struct texture_map *tms;
+};
+
+#define SAMPLER_SAMPLER0        0x0001
+#define SAMPLER_SAMPLER1        0x0002
+#define SAMPLER_SAMPLER2        0x0004
+#define SAMPLER_SAMPLER3        0x0008
+#define SAMPLER_SAMPLER4        0x0010
+#define SAMPLER_SAMPLER5        0x0020
+#define SAMPLER_SAMPLER6        0x0040
+#define SAMPLER_SAMPLER7        0x0080
+#define SAMPLER_SAMPLER8        0x0100
+#define SAMPLER_SAMPLER9        0x0200
+#define SAMPLER_SAMPLER10       0x0400
+#define SAMPLER_SAMPLER11       0x0800
+#define SAMPLER_SAMPLER12       0x1000
+#define SAMPLER_SAMPLER13       0x2000
+#define SAMPLER_SAMPLER14       0x4000
+#define SAMPLER_SAMPLER15       0x8000
+
+#define MIPFILTER_NONE          0
+#define MIPFILTER_NEAREST       1
+#define MIPFILTER_LINEAR        3
+
+#define MAPFILTER_NEAREST       0
+#define MAPFILTER_LINEAR        1
+#define MAPFILTER_ANISOTROPIC   2
+#define MAPFILTER_4X4_1         3
+#define MAPFILTER_4X4_2         4
+#define MAPFILTER_4X4_FLAT      5
+#define MAPFILTER_MONO          6
+
+#define ANISORATIO_2            0
+#define ANISORATIO_4            1
+
+#define PREFILTEROP_ALWAYS      0
+#define PREFILTEROP_NEVER       1
+#define PREFILTEROP_LESS        2
+#define PREFILTEROP_EQUAL       3
+#define PREFILTEROP_LEQUAL      4
+#define PREFILTEROP_GREATER     5
+#define PREFILTEROP_NOTEQUAL    6
+#define PREFILTEROP_GEQUAL      7
+
+#define TEXCOORDMODE_WRAP       0
+#define TEXCOORDMODE_MIRROR     1
+#define TEXCOORDMODE_CLAMP      2
+#define TEXCOORDMODE_CUBE       3
+#define TEXCOORDMODE_CLAMP_BORDER       4
+#define TEXCOORDMODE_MIRROR_ONCE        5
+
+struct texture_sampler
+{
+    struct {
+        unsigned shadow_function : 3;
+        unsigned max_anisotropy : 1;
+        unsigned shadow_enable : 1;
+        unsigned lod_bias : 9;
+        unsigned min_filter : 3;
+        unsigned mag_filter : 3;
+        unsigned mip_filter : 2;
+        unsigned base_level : 5;
+        unsigned chromakey_index : 2;
+        unsigned color_conversion : 1;
+        unsigned planar2packet : 1;
+        unsigned reverse_gamma : 1;
+    } ts0;
+
+    struct {
+        unsigned east_deinterlacer : 1;
+        unsigned map_index : 4;
+        unsigned normalized_coor : 1;
+        unsigned tcz_control : 3;
+        unsigned tcy_control : 3;
+        unsigned tcx_control : 3;
+        unsigned chromakey_enable : 1;
+        unsigned keyed_texture_filter : 1;
+        unsigned kill_pixel : 1;
+        unsigned pad0 : 6;
+        unsigned min_lod : 8;
+    } ts1;
+
+    struct {
+        unsigned default_color;
+    } ts2;
+};
+
+struct i915_3dstate_sampler_state
+{
+    struct {
+        unsigned length : 6;
+        unsigned pad0 : 10;
+        unsigned opcode : 13;
+        unsigned type : 3;
+    } dw0;
+
+    struct {
+        unsigned sampler_masker : 16;
+        unsigned pad0 : 16;
+    } dw1;
+};
+
+struct arithmetic_inst
+{
+    struct {
+        unsigned pad0 : 2;
+        unsigned src0_reg : 5;
+        unsigned src0_reg_t : 3;
+        unsigned dest_channel_mask : 4;
+        unsigned dest_reg : 4;
+        unsigned pad1 : 1;
+        unsigned dest_reg_t: 3;
+        unsigned dest_saturate : 1;
+        unsigned pad2 : 1;
+        unsigned opcode : 5;
+        unsigned pad3 : 3;
+    } dw0;
+
+    struct {
+        unsigned src1_y_select : 3;
+        unsigned src1_y_negate : 1;
+        unsigned src1_x_select : 3;
+        unsigned src1_x_negate : 1;
+        unsigned src1_reg : 5;
+        unsigned src1_reg_t : 3;
+        unsigned src0_w_select : 3;
+        unsigned src0_w_negate : 1;
+        unsigned src0_z_select : 3;
+        unsigned src0_z_negate : 1;
+        unsigned src0_y_select : 3;
+        unsigned src0_y_negate : 1;
+        unsigned src0_x_select : 3;
+        unsigned src0_x_negate : 1;
+    } dw1;
+
+    struct {
+        unsigned src2_w_select : 3;
+        unsigned src2_w_negate : 1;
+        unsigned src2_z_select : 3;
+        unsigned src2_z_negate : 1;
+        unsigned src2_y_select : 3;
+        unsigned src2_y_negate : 1;
+        unsigned src2_x_select : 3;
+        unsigned src2_x_negate : 1;
+        unsigned src2_reg : 5;
+        unsigned src2_reg_t : 3;
+        unsigned src1_w_select : 3;
+        unsigned src1_w_negate : 1;
+        unsigned src1_z_select : 3;
+        unsigned src1_z_negate : 1;
+    } dw2;
+};
+
+struct texture_inst
+{
+    struct {
+        unsigned sampler_reg : 4;
+        unsigned pad0 : 10;
+        unsigned dest_reg : 4;
+        unsigned pad1 : 1;
+        unsigned dest_reg_t : 3;
+        unsigned pad2 : 2;
+        unsigned opcode : 5;
+        unsigned pad3 : 3;
+    } dw0;
+
+    struct {
+        unsigned pad0 : 16;
+        unsigned address_reg : 5;
+        unsigned pad1 : 3;
+        unsigned address_reg_t : 3;
+        unsigned pad2 : 5;
+    } dw1;
+
+    struct {
+        unsigned pad0;
+    } dw2;
+};
+
+struct declaration_inst
+{
+    struct {
+        unsigned pad0 : 10;
+        unsigned decl_channel_mask : 4;
+        unsigned decl_reg : 4;
+        unsigned pad1 : 1;
+        unsigned decl_reg_t : 2;
+        unsigned pad2 : 1;
+        unsigned sampler_type : 2;
+        unsigned opcode : 5;
+        unsigned pad3 : 3;
+    } dw0;
+
+    struct {
+        unsigned pad0;
+    } dw1;
+
+    struct {
+        unsigned pad0;
+    } dw2;
+};
+
+union shader_inst 
+{
+    struct arithmetic_inst a;
+    struct texture_inst t;
+    struct declaration_inst d;
+};
+
+struct i915_3dstate_pixel_shader_program
+{
+    struct {
+        unsigned length : 9;
+        unsigned pad0 : 6;
+        unsigned retain : 1;
+        unsigned opcode : 13;
+        unsigned type : 3;
+    } dw0;
+
+    // union shader_inst *insts;
+};
+
+#define REG_CR0         0x00000001
+#define REG_CR1         0x00000002
+#define REG_CR2         0x00000004
+#define REG_CR3         0x00000008
+#define REG_CR4         0x00000010
+#define REG_CR5         0x00000020
+#define REG_CR6         0x00000040
+#define REG_CR7         0x00000080
+#define REG_CR8         0x00000100
+#define REG_CR9         0x00000200
+#define REG_CR10        0x00000400
+#define REG_CR11        0x00000800
+#define REG_CR12        0x00001000
+#define REG_CR13        0x00002000
+#define REG_CR14        0x00004000
+#define REG_CR15        0x00008000
+#define REG_CR16        0x00010000
+#define REG_CR17        0x00020000
+#define REG_CR18        0x00040000
+#define REG_CR19        0x00080000
+#define REG_CR20        0x00100000
+#define REG_CR21        0x00200000
+#define REG_CR22        0x00400000
+#define REG_CR23        0x00800000
+#define REG_CR24        0x01000000
+#define REG_CR25        0x02000000
+#define REG_CR26        0x04000000
+#define REG_CR27        0x08000000
+#define REG_CR28        0x10000000
+#define REG_CR29        0x20000000
+#define REG_CR30        0x40000000
+#define REG_CR31        0x80000000
+
+struct shader_constant
+{
+    float x;
+    float y;
+    float z;
+    float w;
+};
+
+struct i915_3dstate_pixel_shader_constants
+{
+    struct {
+        unsigned length : 8;
+        unsigned pad0 : 8;
+        unsigned opcode : 13;
+        unsigned type : 3;
+    } dw0;
+
+    struct {
+        unsigned reg_mask;
+    } dw1;
+    // struct shader_constant *consts;
+};
+
+#define BLOCK_SIS       0x01
+#define BLOCK_DIS       0x02
+#define BLOCK_SSB       0x04
+#define BLOCK_MSB       0x08
+#define BLOCK_PSP       0x10
+#define BLOCK_PSC       0x20
+
+typedef struct _state_ddword
+{
+    struct {
+        unsigned valid : 1;
+        unsigned force : 1;
+        unsigned buffer_address : 30;
+    } dw0;
+
+    struct {
+        unsigned length : 9;
+        unsigned pad0 : 23;
+    } dw1;
+} sis_state, ssb_state, msb_state, psp_state, psc_state;
+
+typedef struct _state_dword
+{
+    struct {
+        unsigned valid : 1;
+        unsigned reset : 1;
+        unsigned buffer_address : 30;
+    } dw0;
+} dis_state;
+
+struct i915_3dstate_load_indirect
+{
+    struct {
+        unsigned length : 8;
+        unsigned block_mask : 6;
+        unsigned mem_select : 1;
+        unsigned pad0 : 1;
+        unsigned opcode : 13;
+        unsigned type : 3;
+    } dw0;
+};
+
+#define TEXCOORDFMT_2FP       0x00
+#define TEXCOORDFMT_3FP       0x01
+#define TEXCOORDFMT_4FP       0x02
+#define TEXCOORDFMT_1FP       0x03
+#define TEXCOORDFMT_2FP_16    0x04
+#define TEXCOORDFMT_4FP_16    0x05
+#define TEXCOORDFMT_NOT_PRESENT  0x0f
+struct s2_dword
+{
+    unsigned set0_texcoord_fmt : 4;
+    unsigned set1_texcoord_fmt : 4;
+    unsigned set2_texcoord_fmt : 4;
+    unsigned set3_texcoord_fmt : 4;
+    unsigned set4_texcoord_fmt : 4;
+    unsigned set5_texcoord_fmt : 4;
+    unsigned set6_texcoord_fmt : 4;
+    unsigned set7_texcoord_fmt : 4;
+};
+
+struct s3_dword
+{
+    unsigned set0_pcd : 1;
+    unsigned set0_ws_tcz : 1;
+    unsigned set0_ws_tcy : 1;
+    unsigned set0_ws_tcx : 1;
+    unsigned set1_pcd : 1;
+    unsigned set1_ws_tcz : 1;
+    unsigned set1_ws_tcy : 1;
+    unsigned set1_ws_tcx : 1;
+    unsigned set2_pcd : 1;
+    unsigned set2_ws_tcz : 1;
+    unsigned set2_ws_tcy : 1;
+    unsigned set2_ws_tcx : 1;
+    unsigned set3_pcd : 1;
+    unsigned set3_ws_tcz : 1;
+    unsigned set3_ws_tcy : 1;
+    unsigned set3_ws_tcx : 1;
+    unsigned set4_pcd : 1;
+    unsigned set4_ws_tcz : 1;
+    unsigned set4_ws_tcy : 1;
+    unsigned set4_ws_tcx : 1;
+    unsigned set5_pcd : 1;
+    unsigned set5_ws_tcz : 1;
+    unsigned set5_ws_tcy : 1;
+    unsigned set5_ws_tcx : 1;
+    unsigned set6_pcd : 1;
+    unsigned set6_ws_tcz : 1;
+    unsigned set6_ws_tcy : 1;
+    unsigned set6_ws_tcx : 1;
+    unsigned set7_pcd : 1;
+    unsigned set7_ws_tcz : 1;
+    unsigned set7_ws_tcy : 1;
+    unsigned set7_ws_tcx : 1;
+};
+
+#define VERTEXHAS_XYZ      1
+#define VERTEXHAS_XYZW     2
+#define VERTEXHAS_XY       3
+#define VERTEXHAS_XYW      4
+
+#define CULLMODE_BOTH      0
+#define CULLMODE_NONE      1
+#define CULLMODE_CW        2
+#define CULLMODE_CCW       3
+
+#define SHADEMODE_LINEAR   0
+#define SHADEMODE_FLAT     1
+struct s4_dword
+{
+    unsigned anti_aliasing_enable : 1;
+    unsigned sprite_point_enable : 1;
+    unsigned fog_parameter_present : 1;
+    unsigned local_depth_offset_enable : 1;
+    unsigned force_specular_diffuse_color : 1;
+    unsigned force_default_diffuse_color : 1;
+    unsigned position_mask : 3;
+    unsigned local_depth_offset_present : 1;
+    unsigned diffuse_color_presetn : 1;
+    unsigned specular_color_fog_factor_present : 1;
+    unsigned point_width_present : 1;
+    unsigned cull_mode : 2;
+    unsigned color_shade_mode : 1;
+    unsigned specular_shade_mode : 1;
+    unsigned fog_shade_mode : 1;
+    unsigned alpha_shade_mode : 1;
+    unsigned line_width : 4;
+    unsigned point_width : 9;
+};
+
+struct s5_dword 
+{
+    unsigned logic_op_enable : 1;
+    unsigned color_dither_enable  : 1;
+    unsigned stencil_test_enable : 1;
+    unsigned stencil_buffer_write_enable : 1;
+    unsigned stencil_pass_depth_pass_op : 3;
+    unsigned stencil_pass_depth_fail_op : 3;
+    unsigned stencil_fail_op : 3;
+    unsigned stencil_test_function : 3;
+    unsigned stencil_reference_value : 8;
+    unsigned fog_enable : 1;
+    unsigned global_depth_offset_enable : 1;
+    unsigned last_pixel_enable : 1;
+    unsigned force_default_point_width : 1;
+    unsigned color_buffer_component_write_disable : 4;
+};
+
+struct s6_dword
+{
+    unsigned triangle_pv : 2;
+    unsigned color_buffer_write : 1;
+    unsigned depth_buffer_write : 1;
+    unsigned dest_blend_factor : 4;
+    unsigned src_blend_factor : 4;
+    unsigned color_blend_function : 3;
+    unsigned color_buffer_blend : 1;
+    unsigned depth_test_function : 3;
+    unsigned depth_test_enable : 1;
+    unsigned alpha_reference_value : 8;
+    unsigned alpha_test_function : 3;
+    unsigned alpha_test_enable : 1;
+    
+};
+
+struct s7_dword
+{
+    unsigned global_depth_offset_const;
+};
+
+struct i915_3dstate_load_state_immediate_1
+{
+    struct {
+        unsigned length : 4;
+        unsigned load_s0 : 1;
+        unsigned load_s1 : 1;
+        unsigned load_s2 : 1;
+        unsigned load_s3 : 1;
+        unsigned load_s4 : 1;
+        unsigned load_s5 : 1;
+        unsigned load_s6 : 1;
+        unsigned load_s7 : 1;
+        unsigned pad0 : 4;
+        unsigned opcode : 13;
+        unsigned type : 3;
+    } dw0;
+};
+
+struct i915_3dstate_scissor_rectangle
+{
+    struct {
+        unsigned length : 16;
+        unsigned opcode : 13;
+        unsigned type : 3;
+    } dw0;
+
+    struct {
+        unsigned min_x : 16;
+        unsigned min_y : 16;
+    } dw1;
+
+    struct {
+        unsigned max_x : 16;
+        unsigned max_y : 16;
+    } dw2;
+};
+
+#define VERTEX_INLINE         0x00
+#define VERTEX_INDIRECT       0x01
+
+#define PRIM_TRILIST          0x00
+#define PRIM_TRISTRIP         0x01
+#define PRIM_TRISTRIP_REVERSE 0x02
+#define PRIM_TRIFAN           0x03
+#define PRIM_POLYGON          0x04
+#define PRIM_LINELIST         0x05
+#define PRIM_LINESTRIP        0x06
+#define PRIM_RECTLIST         0x07
+#define PRIM_POINTLIST        0x08
+#define PRIM_DIB              0x09
+#define PRIM_CLEAR_RECT       0x0a
+#define PRIM_ZONE_INIT        0x0d
+
+struct texture_coordinate_set
+{
+    unsigned tcx;
+    unsigned tcy;
+};
+
+struct vertex_data
+{
+    unsigned x;
+    unsigned y;
+    struct texture_coordinate_set tc0;
+    struct texture_coordinate_set tc1;
+};
+
+struct i915_3dprimitive
+{
+    union {
+        struct {
+            unsigned length : 18;
+            unsigned prim : 5;
+            unsigned vertex_location : 1;
+            unsigned opcode : 5;
+            unsigned type : 3;
+        } inline_prim;
+
+        struct {
+            unsigned vertex_count : 16;
+            unsigned pad0 : 1;
+            unsigned vertex_access_mode : 1;
+            unsigned prim : 5;
+            unsigned vertex_location : 1;
+            unsigned opcode : 5;
+            unsigned type : 3;
+        } indirect_prim;            
+    } dw0;
+};
+#endif /*_I915_STRUCTS_H */
diff --git a/src/xvmc/intel_batchbuffer.c b/src/xvmc/intel_batchbuffer.c
new file mode 100644
index 0000000..ecd57b5
--- /dev/null
+++ b/src/xvmc/intel_batchbuffer.c
@@ -0,0 +1,255 @@
+/**************************************************************************
+ *
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <string.h>
+#include <assert.h>
+
+#include <sys/ioctl.h>
+#include <X11/Xlibint.h>
+#include <fourcc.h>
+#include <X11/extensions/Xv.h>
+#include <X11/extensions/Xvlib.h>
+#include <X11/extensions/XvMC.h>
+#include <X11/extensions/XvMClib.h>
+
+#include "I915XvMC.h"
+#include "intel_batchbuffer.h"
+
+#define MI_BATCH_BUFFER_END     (0xA << 23)
+
+int intelEmitIrqLocked(i915XvMCContext *pI915XvMC)
+{
+   drmI830IrqEmit ie;
+   int ret, seq;
+
+   ie.irq_seq = &seq;
+   ret = drmCommandWriteRead(pI915XvMC->fd, DRM_I830_IRQ_EMIT,
+                             &ie, sizeof(ie));
+
+   if ( ret ) {
+      fprintf(stderr, "%s: drmI830IrqEmit: %d\n", __FUNCTION__, ret);
+      exit(1);
+   }
+
+   return seq;
+}
+
+void intelWaitIrq(i915XvMCContext *pI915XvMC, int seq)
+{
+   int ret;
+   drmI830IrqWait iw;
+
+   iw.irq_seq = seq;
+
+   do {
+      ret = drmCommandWrite(pI915XvMC->fd, DRM_I830_IRQ_WAIT, &iw, sizeof(iw) );
+   } while (ret == -EAGAIN || ret == -EINTR);
+
+   if (ret) {
+      fprintf(stderr, "%s: drmI830IrqWait: %d\n", __FUNCTION__, ret);
+      exit(1);
+   }
+}
+
+void intelDestroyBatchBuffer(i915XvMCContext *pI915XvMC)
+{
+   if (pI915XvMC->alloc.offset) {
+       pI915XvMC->alloc.ptr = NULL;
+       pI915XvMC->alloc.offset = 0;
+   } else if (pI915XvMC->alloc.ptr) {
+      free(pI915XvMC->alloc.ptr);
+      pI915XvMC->alloc.ptr = NULL;
+   }
+
+   memset(&pI915XvMC->batch, 0, sizeof(pI915XvMC->batch));
+}
+
+
+void intelInitBatchBuffer(i915XvMCContext  *pI915XvMC)
+{
+    if (pI915XvMC->batchbuffer.map) {
+        pI915XvMC->alloc.size = pI915XvMC->batchbuffer.size;
+        pI915XvMC->alloc.offset = pI915XvMC->batchbuffer.offset;
+        pI915XvMC->alloc.ptr = pI915XvMC->batchbuffer.map;
+    } else {
+        pI915XvMC->alloc.size = 8 * 1024;
+        pI915XvMC->alloc.offset = 0;
+        pI915XvMC->alloc.ptr = malloc(pI915XvMC->alloc.size);
+    }
+
+   pI915XvMC->alloc.active_buf = 0;
+   assert(pI915XvMC->alloc.ptr);
+}
+
+void intelBatchbufferRequireSpace(i915XvMCContext *pI915XvMC, unsigned sz)
+{
+   if (pI915XvMC->batch.space < sz)
+      intelFlushBatch(pI915XvMC, TRUE);
+}
+
+void intelBatchbufferData(i915XvMCContext *pI915XvMC, const void *data, 
+                          unsigned bytes, unsigned flags)
+{
+   assert((bytes & 0x3) == 0);
+
+   intelBatchbufferRequireSpace(pI915XvMC, bytes);
+   memcpy(pI915XvMC->batch.ptr, data, bytes);
+   pI915XvMC->batch.ptr += bytes;
+   pI915XvMC->batch.space -= bytes;
+
+   assert(pI915XvMC->batch.space >= 0);
+}
+
+#define MI_FLUSH                ((0 << 29) | (4 << 23))
+#define FLUSH_MAP_CACHE         (1 << 0)
+#define FLUSH_RENDER_CACHE      (0 << 2)
+#define FLUSH_WRITE_DIRTY_STATE (1 << 4)
+void intelRefillBatchLocked(i915XvMCContext *pI915XvMC, Bool allow_unlock )
+{
+   unsigned half = pI915XvMC->alloc.size >> 1;
+   unsigned buf = (pI915XvMC->alloc.active_buf ^= 1);
+   unsigned dword[2];
+
+   dword[0] = MI_FLUSH | FLUSH_WRITE_DIRTY_STATE | FLUSH_RENDER_CACHE | FLUSH_MAP_CACHE;
+   dword[1] = 0;
+   intelCmdIoctl(pI915XvMC, (char *)&dword[0], sizeof(dword));
+   pI915XvMC->alloc.irq_emitted = intelEmitIrqLocked(pI915XvMC);
+
+   if (pI915XvMC->alloc.irq_emitted) {
+       intelWaitIrq(pI915XvMC, pI915XvMC->alloc.irq_emitted);
+   }
+
+   pI915XvMC->batch.start_offset = pI915XvMC->alloc.offset + buf * half;
+   pI915XvMC->batch.ptr = (unsigned char *)pI915XvMC->alloc.ptr + buf * half;
+   pI915XvMC->batch.size = half - 8;
+   pI915XvMC->batch.space = half - 8;
+   assert(pI915XvMC->batch.space >= 0);
+}
+
+
+void intelFlushBatchLocked(i915XvMCContext *pI915XvMC,
+                           Bool ignore_cliprects,
+                           Bool refill,
+                           Bool allow_unlock)
+{
+   drmI830BatchBuffer batch;
+
+   if (pI915XvMC->batch.space != pI915XvMC->batch.size) {
+
+      batch.start = pI915XvMC->batch.start_offset;
+      batch.used = pI915XvMC->batch.size - pI915XvMC->batch.space;
+      batch.cliprects = 0;
+      batch.num_cliprects = 0;
+      batch.DR1 = 0;
+      batch.DR4 = 0;
+
+      if (pI915XvMC->alloc.offset) {
+          if ((batch.used & 0x4) == 0) {
+              ((int *)pI915XvMC->batch.ptr)[0] = 0;
+              ((int *)pI915XvMC->batch.ptr)[1] = MI_BATCH_BUFFER_END;
+              batch.used += 0x8;
+              pI915XvMC->batch.ptr += 0x8;
+          } else {
+              ((int *)pI915XvMC->batch.ptr)[0] = MI_BATCH_BUFFER_END;
+              batch.used += 0x4;
+              pI915XvMC->batch.ptr += 0x4;
+          }
+      }
+
+      pI915XvMC->batch.start_offset += batch.used;
+      pI915XvMC->batch.size -= batch.used;
+
+      if (pI915XvMC->batch.size < 8) {
+         refill = TRUE;
+         pI915XvMC->batch.space = pI915XvMC->batch.size = 0;
+      }
+      else {
+         pI915XvMC->batch.size -= 8;
+         pI915XvMC->batch.space = pI915XvMC->batch.size;
+      }
+
+      assert(pI915XvMC->batch.space >= 0);
+      assert(batch.start >= pI915XvMC->alloc.offset);
+      assert(batch.start < pI915XvMC->alloc.offset + pI915XvMC->alloc.size);
+      assert(batch.start + batch.used > pI915XvMC->alloc.offset);
+      assert(batch.start + batch.used <= pI915XvMC->alloc.offset + pI915XvMC->alloc.size);
+
+      if (pI915XvMC->alloc.offset) {
+          if (drmCommandWrite(pI915XvMC->fd, DRM_I830_BATCHBUFFER, &batch, sizeof(batch))) {
+              fprintf(stderr, "DRM_I830_BATCHBUFFER: %d\n",  -errno);
+              exit(1);
+          }
+      } else {
+         drmI830CmdBuffer cmd;
+         cmd.buf = (char *)pI915XvMC->alloc.ptr + batch.start;
+         cmd.sz = batch.used;
+         cmd.DR1 = batch.DR1;
+         cmd.DR4 = batch.DR4;
+         cmd.num_cliprects = batch.num_cliprects;
+         cmd.cliprects = batch.cliprects;
+
+         if (drmCommandWrite(pI915XvMC->fd, DRM_I830_CMDBUFFER, 
+                             &cmd, sizeof(cmd))) {
+            fprintf(stderr, "DRM_I915_CMDBUFFER: %d\n",  -errno);
+            exit(1);
+         }
+      }
+   }
+
+   if (refill)
+      intelRefillBatchLocked(pI915XvMC, allow_unlock);
+}
+
+void intelFlushBatch(i915XvMCContext *pI915XvMC, Bool refill )
+{
+   intelFlushBatchLocked(pI915XvMC, FALSE, refill, TRUE);
+}
+
+void intelCmdIoctl(i915XvMCContext *pI915XvMC, char *buf, unsigned used)
+{
+   drmI830CmdBuffer cmd;
+
+   cmd.buf = buf;
+   cmd.sz = used;
+   cmd.cliprects = 0;
+   cmd.num_cliprects = 0;
+   cmd.DR1 = 0;
+   cmd.DR4 = 0;
+
+   if (drmCommandWrite(pI915XvMC->fd, DRM_I830_CMDBUFFER, 
+                       &cmd, sizeof(cmd))) {
+      fprintf(stderr, "DRM_I830_CMDBUFFER: %d\n",  -errno);
+      exit(1);
+   }
+}
diff --git a/src/xvmc/intel_batchbuffer.h b/src/xvmc/intel_batchbuffer.h
new file mode 100644
index 0000000..5b3e8e1
--- /dev/null
+++ b/src/xvmc/intel_batchbuffer.h
@@ -0,0 +1,42 @@
+#ifndef _INTEL_BATCHBUFFER_H
+#define _INTEL_BATCHBUFFER_H
+
+/* #define VERBOSE 0 */
+#ifndef VERBOSE
+extern int VERBOSE;
+#endif
+
+#define BATCH_LOCALS    char *batch_ptr;
+
+#define BEGIN_BATCH(n)                                                  \
+    do {                                                                \
+        if (VERBOSE) fprintf(stderr,                                    \
+                             "BEGIN_BATCH(%ld) in %s, %d dwords free\n", \
+                             ((unsigned long)n), __FUNCTION__,          \
+                             pI915XvMC->batch.space/4);                     \
+        if (pI915XvMC->batch.space < (n)*4)                                 \
+            intelFlushBatch(pI915XvMC, TRUE);                            \
+        batch_ptr = pI915XvMC->batch.ptr;                                   \
+    } while (0)
+
+#define OUT_BATCH(n)                                                    \
+    do {                                                                \
+        *(GLuint *)batch_ptr = (n);                                     \
+        if (VERBOSE) fprintf(stderr, " -- %08x at %s/%d\n", (n), __FILE__, __LINE__); \
+        batch_ptr += 4;                                                 \
+    } while (0)
+
+#define ADVANCE_BATCH()                                        \
+    do {                                                       \
+        if (VERBOSE) fprintf(stderr, "ADVANCE_BATCH()\n");     \
+        pI915XvMC->batch.space -= (batch_ptr - pI915XvMC->batch.ptr);  \
+        pI915XvMC->batch.ptr = batch_ptr;                          \
+        assert(pI915XvMC->batch.space >= 0);                       \
+    } while(0)
+
+extern void intelFlushBatch(i915XvMCContext *, Bool);
+extern void intelBatchbufferData(i915XvMCContext *, const void *, unsigned, unsigned);
+extern void intelInitBatchBuffer(i915XvMCContext *);
+extern void intelDestroyBatchBuffer(i915XvMCContext *);
+extern void intelCmdIoctl(i915XvMCContext *, char *, unsigned);
+#endif /* _INTEL_BATCHBUFFER_H */
diff --git a/src/xvmc/xf86dri.c b/src/xvmc/xf86dri.c
new file mode 100644
index 0000000..1feb232
--- /dev/null
+++ b/src/xvmc/xf86dri.c
@@ -0,0 +1,599 @@
+/* $XFree86: xc/lib/GL/dri/XF86dri.c,v 1.13 2002/10/30 12:51:25 alanh Exp $ */
+/**************************************************************************
+
+Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
+Copyright 2000 VA Linux Systems, Inc.
+All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sub license, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice (including the
+next paragraph) shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+**************************************************************************/
+
+/*
+ * Authors:
+ *   Kevin E. Martin <martin@valinux.com>
+ *   Jens Owen <jens@tungstengraphics.com>
+ *   Rickard E. (Rik) Faith <faith@valinux.com>
+ *
+ */
+
+/* THIS IS NOT AN X CONSORTIUM STANDARD */
+
+#define NEED_REPLIES
+#include <X11/Xlibint.h>
+#include <X11/extensions/Xext.h>
+#include <X11/extensions/extutil.h>
+#include "xf86dristr.h"
+
+static XExtensionInfo _xf86dri_info_data;
+static XExtensionInfo *xf86dri_info = &_xf86dri_info_data;
+static char xf86dri_extension_name[] = XF86DRINAME;
+
+#define uniDRICheckExtension(dpy,i,val) \
+  XextCheckExtension (dpy, i, xf86dri_extension_name, val)
+
+/*****************************************************************************
+ *                                                                           *
+ *			   private utility routines                          *
+ *                                                                           *
+ *****************************************************************************/
+
+static int close_display(Display * dpy, XExtCodes * extCodes);
+static /* const */ XExtensionHooks xf86dri_extension_hooks = {
+    NULL,			       /* create_gc */
+    NULL,			       /* copy_gc */
+    NULL,			       /* flush_gc */
+    NULL,			       /* free_gc */
+    NULL,			       /* create_font */
+    NULL,			       /* free_font */
+    close_display,		       /* close_display */
+    NULL,			       /* wire_to_event */
+    NULL,			       /* event_to_wire */
+    NULL,			       /* error */
+    NULL,			       /* error_string */
+};
+
+static
+XEXT_GENERATE_FIND_DISPLAY(find_display, xf86dri_info,
+    xf86dri_extension_name, &xf86dri_extension_hooks, 0, NULL)
+
+    static XEXT_GENERATE_CLOSE_DISPLAY(close_display, xf86dri_info)
+
+/*****************************************************************************
+ *                                                                           *
+ *		    public XFree86-DRI Extension routines                    *
+ *                                                                           *
+ *****************************************************************************/
+#if 0
+#include <stdio.h>
+#define TRACE(msg)  fprintf(stderr,"uniDRI%s\n", msg);
+#else
+#define TRACE(msg)
+#endif
+    Bool uniDRIQueryExtension(dpy, event_basep, error_basep)
+    Display *dpy;
+    int *event_basep, *error_basep;
+{
+    XExtDisplayInfo *info = find_display(dpy);
+
+    TRACE("QueryExtension...");
+    if (XextHasExtension(info)) {
+	*event_basep = info->codes->first_event;
+	*error_basep = info->codes->first_error;
+	TRACE("QueryExtension... return True");
+	return True;
+    } else {
+	TRACE("QueryExtension... return False");
+	return False;
+    }
+}
+
+Bool
+uniDRIQueryVersion(dpy, majorVersion, minorVersion, patchVersion)
+    Display *dpy;
+    int *majorVersion;
+    int *minorVersion;
+    int *patchVersion;
+{
+    XExtDisplayInfo *info = find_display(dpy);
+    xXF86DRIQueryVersionReply rep;
+    xXF86DRIQueryVersionReq *req;
+
+    TRACE("QueryVersion...");
+    uniDRICheckExtension(dpy, info, False);
+
+    LockDisplay(dpy);
+    GetReq(XF86DRIQueryVersion, req);
+    req->reqType = info->codes->major_opcode;
+    req->driReqType = X_XF86DRIQueryVersion;
+    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
+	UnlockDisplay(dpy);
+	SyncHandle();
+	TRACE("QueryVersion... return False");
+	return False;
+    }
+    *majorVersion = rep.majorVersion;
+    *minorVersion = rep.minorVersion;
+    *patchVersion = rep.patchVersion;
+    UnlockDisplay(dpy);
+    SyncHandle();
+    TRACE("QueryVersion... return True");
+    return True;
+}
+
+Bool
+uniDRIQueryDirectRenderingCapable(dpy, screen, isCapable)
+    Display *dpy;
+    int screen;
+    Bool *isCapable;
+{
+    XExtDisplayInfo *info = find_display(dpy);
+    xXF86DRIQueryDirectRenderingCapableReply rep;
+    xXF86DRIQueryDirectRenderingCapableReq *req;
+
+    TRACE("QueryDirectRenderingCapable...");
+    uniDRICheckExtension(dpy, info, False);
+
+    LockDisplay(dpy);
+    GetReq(XF86DRIQueryDirectRenderingCapable, req);
+    req->reqType = info->codes->major_opcode;
+    req->driReqType = X_XF86DRIQueryDirectRenderingCapable;
+    req->screen = screen;
+    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
+	UnlockDisplay(dpy);
+	SyncHandle();
+	TRACE("QueryDirectRenderingCapable... return False");
+	return False;
+    }
+    *isCapable = rep.isCapable;
+    UnlockDisplay(dpy);
+    SyncHandle();
+    TRACE("QueryDirectRenderingCapable... return True");
+    return True;
+}
+
+Bool
+uniDRIOpenConnection(dpy, screen, hSAREA, busIdString)
+    Display *dpy;
+    int screen;
+    drm_handle_t *hSAREA;
+    char **busIdString;
+{
+    XExtDisplayInfo *info = find_display(dpy);
+    xXF86DRIOpenConnectionReply rep;
+    xXF86DRIOpenConnectionReq *req;
+
+    TRACE("OpenConnection...");
+    uniDRICheckExtension(dpy, info, False);
+
+    LockDisplay(dpy);
+    GetReq(XF86DRIOpenConnection, req);
+    req->reqType = info->codes->major_opcode;
+    req->driReqType = X_XF86DRIOpenConnection;
+    req->screen = screen;
+    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
+	UnlockDisplay(dpy);
+	SyncHandle();
+	TRACE("OpenConnection... return False");
+	return False;
+    }
+
+    *hSAREA = rep.hSAREALow;
+#ifdef LONG64
+    if (sizeof(drm_handle_t) == 8) {
+	*hSAREA |= ((unsigned long)rep.hSAREAHigh) << 32;
+    }
+#endif
+    if (rep.length) {
+	if (!(*busIdString = (char *)Xcalloc(rep.busIdStringLength + 1, 1))) {
+	    _XEatData(dpy, ((rep.busIdStringLength + 3) & ~3));
+	    UnlockDisplay(dpy);
+	    SyncHandle();
+	    TRACE("OpenConnection... return False");
+	    return False;
+	}
+	_XReadPad(dpy, *busIdString, rep.busIdStringLength);
+    } else {
+	*busIdString = NULL;
+    }
+    UnlockDisplay(dpy);
+    SyncHandle();
+    TRACE("OpenConnection... return True");
+    return True;
+}
+
+Bool
+uniDRIAuthConnection(dpy, screen, magic)
+    Display *dpy;
+    int screen;
+    drm_magic_t magic;
+{
+    XExtDisplayInfo *info = find_display(dpy);
+    xXF86DRIAuthConnectionReq *req;
+    xXF86DRIAuthConnectionReply rep;
+
+    TRACE("AuthConnection...");
+    uniDRICheckExtension(dpy, info, False);
+
+    LockDisplay(dpy);
+    GetReq(XF86DRIAuthConnection, req);
+    req->reqType = info->codes->major_opcode;
+    req->driReqType = X_XF86DRIAuthConnection;
+    req->screen = screen;
+    req->magic = magic;
+    rep.authenticated = 0;
+    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse) || !rep.authenticated) {
+	UnlockDisplay(dpy);
+	SyncHandle();
+	TRACE("AuthConnection... return False");
+	return False;
+    }
+    UnlockDisplay(dpy);
+    SyncHandle();
+    TRACE("AuthConnection... return True");
+    return True;
+}
+
+Bool
+uniDRICloseConnection(dpy, screen)
+    Display *dpy;
+    int screen;
+{
+    XExtDisplayInfo *info = find_display(dpy);
+    xXF86DRICloseConnectionReq *req;
+
+    TRACE("CloseConnection...");
+
+    uniDRICheckExtension(dpy, info, False);
+
+    LockDisplay(dpy);
+    GetReq(XF86DRICloseConnection, req);
+    req->reqType = info->codes->major_opcode;
+    req->driReqType = X_XF86DRICloseConnection;
+    req->screen = screen;
+    UnlockDisplay(dpy);
+    SyncHandle();
+    TRACE("CloseConnection... return True");
+    return True;
+}
+
+Bool
+uniDRIGetClientDriverName(dpy, screen, ddxDriverMajorVersion,
+    ddxDriverMinorVersion, ddxDriverPatchVersion, clientDriverName)
+    Display *dpy;
+    int screen;
+    int *ddxDriverMajorVersion;
+    int *ddxDriverMinorVersion;
+    int *ddxDriverPatchVersion;
+    char **clientDriverName;
+{
+    XExtDisplayInfo *info = find_display(dpy);
+    xXF86DRIGetClientDriverNameReply rep;
+    xXF86DRIGetClientDriverNameReq *req;
+
+    TRACE("GetClientDriverName...");
+    uniDRICheckExtension(dpy, info, False);
+
+    LockDisplay(dpy);
+    GetReq(XF86DRIGetClientDriverName, req);
+    req->reqType = info->codes->major_opcode;
+    req->driReqType = X_XF86DRIGetClientDriverName;
+    req->screen = screen;
+    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
+	UnlockDisplay(dpy);
+	SyncHandle();
+	TRACE("GetClientDriverName... return False");
+	return False;
+    }
+
+    *ddxDriverMajorVersion = rep.ddxDriverMajorVersion;
+    *ddxDriverMinorVersion = rep.ddxDriverMinorVersion;
+    *ddxDriverPatchVersion = rep.ddxDriverPatchVersion;
+
+    if (rep.length) {
+	if (!(*clientDriverName =
+		(char *)Xcalloc(rep.clientDriverNameLength + 1, 1))) {
+	    _XEatData(dpy, ((rep.clientDriverNameLength + 3) & ~3));
+	    UnlockDisplay(dpy);
+	    SyncHandle();
+	    TRACE("GetClientDriverName... return False");
+	    return False;
+	}
+	_XReadPad(dpy, *clientDriverName, rep.clientDriverNameLength);
+    } else {
+	*clientDriverName = NULL;
+    }
+    UnlockDisplay(dpy);
+    SyncHandle();
+    TRACE("GetClientDriverName... return True");
+    return True;
+}
+
+Bool
+uniDRICreateContextWithConfig(dpy, screen, configID, context, hHWContext)
+    Display *dpy;
+    int screen;
+    int configID;
+    XID *context;
+    drm_context_t *hHWContext;
+{
+    XExtDisplayInfo *info = find_display(dpy);
+    xXF86DRICreateContextReply rep;
+    xXF86DRICreateContextReq *req;
+
+    TRACE("CreateContext...");
+    uniDRICheckExtension(dpy, info, False);
+
+    LockDisplay(dpy);
+    GetReq(XF86DRICreateContext, req);
+    req->reqType = info->codes->major_opcode;
+    req->driReqType = X_XF86DRICreateContext;
+    req->visual = configID;
+    req->screen = screen;
+    *context = XAllocID(dpy);
+    req->context = *context;
+    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
+	UnlockDisplay(dpy);
+	SyncHandle();
+	TRACE("CreateContext... return False");
+	return False;
+    }
+    *hHWContext = rep.hHWContext;
+    UnlockDisplay(dpy);
+    SyncHandle();
+    TRACE("CreateContext... return True");
+    return True;
+}
+
+Bool
+uniDRICreateContext(dpy, screen, visual, context, hHWContext)
+    Display *dpy;
+    int screen;
+    Visual *visual;
+    XID *context;
+    drm_context_t *hHWContext;
+{
+    return uniDRICreateContextWithConfig(dpy, screen, visual->visualid,
+	context, hHWContext);
+}
+
+Bool
+uniDRIDestroyContext(Display * ndpy, int screen, XID context)
+{
+    Display *const dpy = (Display *) ndpy;
+    XExtDisplayInfo *info = find_display(dpy);
+    xXF86DRIDestroyContextReq *req;
+
+    TRACE("DestroyContext...");
+    uniDRICheckExtension(dpy, info, False);
+
+    LockDisplay(dpy);
+    GetReq(XF86DRIDestroyContext, req);
+    req->reqType = info->codes->major_opcode;
+    req->driReqType = X_XF86DRIDestroyContext;
+    req->screen = screen;
+    req->context = context;
+    UnlockDisplay(dpy);
+    SyncHandle();
+    TRACE("DestroyContext... return True");
+    return True;
+}
+
+Bool
+uniDRICreateDrawable(Display * ndpy, int screen,
+    Drawable drawable, drm_drawable_t * hHWDrawable)
+{
+    Display *const dpy = (Display *) ndpy;
+    XExtDisplayInfo *info = find_display(dpy);
+    xXF86DRICreateDrawableReply rep;
+    xXF86DRICreateDrawableReq *req;
+
+    TRACE("CreateDrawable...");
+    uniDRICheckExtension(dpy, info, False);
+
+    LockDisplay(dpy);
+    GetReq(XF86DRICreateDrawable, req);
+    req->reqType = info->codes->major_opcode;
+    req->driReqType = X_XF86DRICreateDrawable;
+    req->screen = screen;
+    req->drawable = drawable;
+    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
+	UnlockDisplay(dpy);
+	SyncHandle();
+	TRACE("CreateDrawable... return False");
+	return False;
+    }
+    *hHWDrawable = rep.hHWDrawable;
+    UnlockDisplay(dpy);
+    SyncHandle();
+    TRACE("CreateDrawable... return True");
+    return True;
+}
+
+Bool
+uniDRIDestroyDrawable(Display * ndpy, int screen, Drawable drawable)
+{
+    Display *const dpy = (Display *) ndpy;
+    XExtDisplayInfo *info = find_display(dpy);
+    xXF86DRIDestroyDrawableReq *req;
+
+    TRACE("DestroyDrawable...");
+    uniDRICheckExtension(dpy, info, False);
+
+    LockDisplay(dpy);
+    GetReq(XF86DRIDestroyDrawable, req);
+    req->reqType = info->codes->major_opcode;
+    req->driReqType = X_XF86DRIDestroyDrawable;
+    req->screen = screen;
+    req->drawable = drawable;
+    UnlockDisplay(dpy);
+    SyncHandle();
+    TRACE("DestroyDrawable... return True");
+    return True;
+}
+
+Bool
+uniDRIGetDrawableInfo(Display * dpy, int screen, Drawable drawable,
+    unsigned int *index, unsigned int *stamp,
+    int *X, int *Y, int *W, int *H,
+    int *numClipRects, drm_clip_rect_t ** pClipRects,
+    int *backX, int *backY,
+    int *numBackClipRects, drm_clip_rect_t ** pBackClipRects)
+{
+    XExtDisplayInfo *info = find_display(dpy);
+    xXF86DRIGetDrawableInfoReply rep;
+    xXF86DRIGetDrawableInfoReq *req;
+    int total_rects;
+
+    TRACE("GetDrawableInfo...");
+    uniDRICheckExtension(dpy, info, False);
+
+    LockDisplay(dpy);
+    GetReq(XF86DRIGetDrawableInfo, req);
+    req->reqType = info->codes->major_opcode;
+    req->driReqType = X_XF86DRIGetDrawableInfo;
+    req->screen = screen;
+    req->drawable = drawable;
+
+    if (!_XReply(dpy, (xReply *) & rep, 1, xFalse)) {
+	UnlockDisplay(dpy);
+	SyncHandle();
+	TRACE("GetDrawableInfo... return False");
+	return False;
+    }
+    *index = rep.drawableTableIndex;
+    *stamp = rep.drawableTableStamp;
+    *X = (int)rep.drawableX;
+    *Y = (int)rep.drawableY;
+    *W = (int)rep.drawableWidth;
+    *H = (int)rep.drawableHeight;
+    *numClipRects = rep.numClipRects;
+    total_rects = *numClipRects;
+
+    *backX = rep.backX;
+    *backY = rep.backY;
+    *numBackClipRects = rep.numBackClipRects;
+    total_rects += *numBackClipRects;
+
+#if 0
+    /* Because of the fix in Xserver/GL/dri/xf86dri.c, this check breaks
+     * backwards compatibility (Because of the >> 2 shift) but the fix
+     * enables multi-threaded apps to work.
+     */
+    if (rep.length != ((((SIZEOF(xXF86DRIGetDrawableInfoReply) -
+			SIZEOF(xGenericReply) +
+			total_rects * sizeof(drm_clip_rect_t)) +
+		    3) & ~3) >> 2)) {
+	_XEatData(dpy, rep.length);
+	UnlockDisplay(dpy);
+	SyncHandle();
+	TRACE("GetDrawableInfo... return False");
+	return False;
+    }
+#endif
+
+    if (*numClipRects) {
+	int len = sizeof(drm_clip_rect_t) * (*numClipRects);
+
+	*pClipRects = (drm_clip_rect_t *) Xcalloc(len, 1);
+	if (*pClipRects)
+	    _XRead(dpy, (char *)*pClipRects, len);
+    } else {
+	*pClipRects = NULL;
+    }
+
+    if (*numBackClipRects) {
+	int len = sizeof(drm_clip_rect_t) * (*numBackClipRects);
+
+	*pBackClipRects = (drm_clip_rect_t *) Xcalloc(len, 1);
+	if (*pBackClipRects)
+	    _XRead(dpy, (char *)*pBackClipRects, len);
+    } else {
+	*pBackClipRects = NULL;
+    }
+
+    UnlockDisplay(dpy);
+    SyncHandle();
+    TRACE("GetDrawableInfo... return True");
+    return True;
+}
+
+Bool
+uniDRIGetDeviceInfo(dpy, screen, hFrameBuffer,
+    fbOrigin, fbSize, fbStride, devPrivateSize, pDevPrivate)
+    Display *dpy;
+    int screen;
+    drm_handle_t *hFrameBuffer;
+    int *fbOrigin;
+    int *fbSize;
+    int *fbStride;
+    int *devPrivateSize;
+    void **pDevPrivate;
+{
+    XExtDisplayInfo *info = find_display(dpy);
+    xXF86DRIGetDeviceInfoReply rep;
+    xXF86DRIGetDeviceInfoReq *req;
+
+    TRACE("GetDeviceInfo...");
+    uniDRICheckExtension(dpy, info, False);
+
+    LockDisplay(dpy);
+    GetReq(XF86DRIGetDeviceInfo, req);
+    req->reqType = info->codes->major_opcode;
+    req->driReqType = X_XF86DRIGetDeviceInfo;
+    req->screen = screen;
+    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
+	UnlockDisplay(dpy);
+	SyncHandle();
+	TRACE("GetDeviceInfo... return False");
+	return False;
+    }
+
+    *hFrameBuffer = rep.hFrameBufferLow;
+#ifdef LONG64
+    if (sizeof(drm_handle_t) == 8) {
+	*hFrameBuffer |= ((unsigned long)rep.hFrameBufferHigh) << 32;
+    }
+#endif
+
+    *fbOrigin = rep.framebufferOrigin;
+    *fbSize = rep.framebufferSize;
+    *fbStride = rep.framebufferStride;
+    *devPrivateSize = rep.devPrivateSize;
+
+    if (rep.length) {
+	if (!(*pDevPrivate = (void *)Xcalloc(rep.devPrivateSize, 1))) {
+	    _XEatData(dpy, ((rep.devPrivateSize + 3) & ~3));
+	    UnlockDisplay(dpy);
+	    SyncHandle();
+	    TRACE("GetDeviceInfo... return False");
+	    return False;
+	}
+	_XRead(dpy, (char *)*pDevPrivate, rep.devPrivateSize);
+    } else {
+	*pDevPrivate = NULL;
+    }
+
+    UnlockDisplay(dpy);
+    SyncHandle();
+    TRACE("GetDeviceInfo... return True");
+    return True;
+}
diff --git a/src/xvmc/xf86dri.h b/src/xvmc/xf86dri.h
new file mode 100644
index 0000000..d7580a1
--- /dev/null
+++ b/src/xvmc/xf86dri.h
@@ -0,0 +1,109 @@
+/* $XFree86: xc/lib/GL/dri/xf86dri.h,v 1.8 2002/10/30 12:51:25 alanh Exp $ */
+/**************************************************************************
+
+Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
+Copyright 2000 VA Linux Systems, Inc.
+All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sub license, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice (including the
+next paragraph) shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+**************************************************************************/
+
+/**
+ * \file xf86dri.h
+ * Protocol numbers and function prototypes for DRI X protocol.
+ *
+ * \author Kevin E. Martin <martin@valinux.com>
+ * \author Jens Owen <jens@tungstengraphics.com>
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ */
+
+#ifndef _XF86DRI_H_
+#define _XF86DRI_H_
+
+#include <X11/Xfuncproto.h>
+#include <xf86drm.h>
+
+#define X_XF86DRIQueryVersion			0
+#define X_XF86DRIQueryDirectRenderingCapable	1
+#define X_XF86DRIOpenConnection			2
+#define X_XF86DRICloseConnection		3
+#define X_XF86DRIGetClientDriverName		4
+#define X_XF86DRICreateContext			5
+#define X_XF86DRIDestroyContext			6
+#define X_XF86DRICreateDrawable			7
+#define X_XF86DRIDestroyDrawable		8
+#define X_XF86DRIGetDrawableInfo		9
+#define X_XF86DRIGetDeviceInfo			10
+#define X_XF86DRIAuthConnection                 11
+#define X_XF86DRIOpenFullScreen                 12	/* Deprecated */
+#define X_XF86DRICloseFullScreen                13	/* Deprecated */
+
+#define XF86DRINumberEvents		0
+
+#define XF86DRIClientNotLocal		0
+#define XF86DRIOperationNotSupported	1
+#define XF86DRINumberErrors		(XF86DRIOperationNotSupported + 1)
+
+#ifndef _XF86DRI_SERVER_
+
+_XFUNCPROTOBEGIN
+    Bool uniDRIQueryExtension(Display * dpy, int *event_base,
+    int *error_base);
+
+Bool uniDRIQueryVersion(Display * dpy, int *majorVersion, int *minorVersion,
+    int *patchVersion);
+
+Bool uniDRIQueryDirectRenderingCapable(Display * dpy, int screen,
+    Bool * isCapable);
+
+Bool uniDRIOpenConnection(Display * dpy, int screen, drm_handle_t * hSAREA,
+    char **busIDString);
+
+Bool uniDRIAuthConnection(Display * dpy, int screen, drm_magic_t magic);
+
+Bool uniDRICloseConnection(Display * dpy, int screen);
+
+Bool uniDRIGetClientDriverName(Display * dpy, int screen,
+    int *ddxDriverMajorVersion, int *ddxDriverMinorVersion,
+    int *ddxDriverPatchVersion, char **clientDriverName);
+
+Bool uniDRICreateContext(Display * dpy, int screen, Visual * visual,
+    XID * ptr_to_returned_context_id, drm_context_t * hHWContext);
+
+Bool uniDRICreateContextWithConfig(Display * dpy, int screen, int configID,
+    XID * ptr_to_returned_context_id, drm_context_t * hHWContext);
+
+extern Bool uniDRIDestroyContext(Display * dpy, int screen, XID context_id);
+
+extern Bool uniDRICreateDrawable(Display * dpy, int screen,
+    Drawable drawable, drm_drawable_t * hHWDrawable);
+
+extern Bool uniDRIDestroyDrawable(Display * dpy, int screen,
+    Drawable drawable);
+
+Bool uniDRIGetDeviceInfo(Display * dpy, int screen,
+    drm_handle_t * hFrameBuffer, int *fbOrigin, int *fbSize,
+    int *fbStride, int *devPrivateSize, void **pDevPrivate);
+
+_XFUNCPROTOEND
+#endif /* _XF86DRI_SERVER_ */
+#endif /* _XF86DRI_H_ */
diff --git a/src/xvmc/xf86dristr.h b/src/xvmc/xf86dristr.h
new file mode 100644
index 0000000..3b43438
--- /dev/null
+++ b/src/xvmc/xf86dristr.h
@@ -0,0 +1,390 @@
+/* $XFree86: xc/lib/GL/dri/xf86dristr.h,v 1.10 2002/10/30 12:51:25 alanh Exp $ */
+/**************************************************************************
+
+Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
+Copyright 2000 VA Linux Systems, Inc.
+All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sub license, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice (including the
+next paragraph) shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+**************************************************************************/
+
+/*
+ * Authors:
+ *   Kevin E. Martin <martin@valinux.com>
+ *   Jens Owen <jens@tungstengraphics.com>
+ *   Rickard E. (Rik) Fiath <faith@valinux.com>
+ *
+ */
+
+#ifndef _XF86DRISTR_H_
+#define _XF86DRISTR_H_
+
+#include "xf86dri.h"
+
+#define XF86DRINAME "XFree86-DRI"
+
+/* The DRI version number.  This was originally set to be the same of the
+ * XFree86 version number.  However, this version is really indepedent of
+ * the XFree86 version.
+ *
+ * Version History:
+ *    4.0.0: Original
+ *    4.0.1: Patch to bump clipstamp when windows are destroyed, 28 May 02
+ *    4.1.0: Add transition from single to multi in DRMInfo rec, 24 Jun 02
+ */
+#define XF86DRI_MAJOR_VERSION	4
+#define XF86DRI_MINOR_VERSION	1
+#define XF86DRI_PATCH_VERSION	0
+
+typedef struct _XF86DRIQueryVersion
+{
+    CARD8 reqType;		       /* always DRIReqCode */
+    CARD8 driReqType;		       /* always X_DRIQueryVersion */
+    CARD16 length B16;
+} xXF86DRIQueryVersionReq;
+
+#define sz_xXF86DRIQueryVersionReq	4
+
+typedef struct
+{
+    BYTE type;			       /* X_Reply */
+    BOOL pad1;
+    CARD16 sequenceNumber B16;
+    CARD32 length B32;
+    CARD16 majorVersion B16;	       /* major version of DRI protocol */
+    CARD16 minorVersion B16;	       /* minor version of DRI protocol */
+    CARD32 patchVersion B32;	       /* patch version of DRI protocol */
+    CARD32 pad3 B32;
+    CARD32 pad4 B32;
+    CARD32 pad5 B32;
+    CARD32 pad6 B32;
+} xXF86DRIQueryVersionReply;
+
+#define sz_xXF86DRIQueryVersionReply	32
+
+typedef struct _XF86DRIQueryDirectRenderingCapable
+{
+    CARD8 reqType;		       /* always DRIReqCode */
+    CARD8 driReqType;		       /* X_DRIQueryDirectRenderingCapable */
+    CARD16 length B16;
+    CARD32 screen B32;
+} xXF86DRIQueryDirectRenderingCapableReq;
+
+#define sz_xXF86DRIQueryDirectRenderingCapableReq	8
+
+typedef struct
+{
+    BYTE type;			       /* X_Reply */
+    BOOL pad1;
+    CARD16 sequenceNumber B16;
+    CARD32 length B32;
+    BOOL isCapable;
+    BOOL pad2;
+    BOOL pad3;
+    BOOL pad4;
+    CARD32 pad5 B32;
+    CARD32 pad6 B32;
+    CARD32 pad7 B32;
+    CARD32 pad8 B32;
+    CARD32 pad9 B32;
+} xXF86DRIQueryDirectRenderingCapableReply;
+
+#define sz_xXF86DRIQueryDirectRenderingCapableReply	32
+
+typedef struct _XF86DRIOpenConnection
+{
+    CARD8 reqType;		       /* always DRIReqCode */
+    CARD8 driReqType;		       /* always X_DRIOpenConnection */
+    CARD16 length B16;
+    CARD32 screen B32;
+} xXF86DRIOpenConnectionReq;
+
+#define sz_xXF86DRIOpenConnectionReq	8
+
+typedef struct
+{
+    BYTE type;			       /* X_Reply */
+    BOOL pad1;
+    CARD16 sequenceNumber B16;
+    CARD32 length B32;
+    CARD32 hSAREALow B32;
+    CARD32 hSAREAHigh B32;
+    CARD32 busIdStringLength B32;
+    CARD32 pad6 B32;
+    CARD32 pad7 B32;
+    CARD32 pad8 B32;
+} xXF86DRIOpenConnectionReply;
+
+#define sz_xXF86DRIOpenConnectionReply	32
+
+typedef struct _XF86DRIAuthConnection
+{
+    CARD8 reqType;		       /* always DRIReqCode */
+    CARD8 driReqType;		       /* always X_DRICloseConnection */
+    CARD16 length B16;
+    CARD32 screen B32;
+    CARD32 magic B32;
+} xXF86DRIAuthConnectionReq;
+
+#define sz_xXF86DRIAuthConnectionReq	12
+
+typedef struct
+{
+    BYTE type;
+    BOOL pad1;
+    CARD16 sequenceNumber B16;
+    CARD32 length B32;
+    CARD32 authenticated B32;
+    CARD32 pad2 B32;
+    CARD32 pad3 B32;
+    CARD32 pad4 B32;
+    CARD32 pad5 B32;
+    CARD32 pad6 B32;
+} xXF86DRIAuthConnectionReply;
+
+#define zx_xXF86DRIAuthConnectionReply  32
+
+typedef struct _XF86DRICloseConnection
+{
+    CARD8 reqType;		       /* always DRIReqCode */
+    CARD8 driReqType;		       /* always X_DRICloseConnection */
+    CARD16 length B16;
+    CARD32 screen B32;
+} xXF86DRICloseConnectionReq;
+
+#define sz_xXF86DRICloseConnectionReq	8
+
+typedef struct _XF86DRIGetClientDriverName
+{
+    CARD8 reqType;		       /* always DRIReqCode */
+    CARD8 driReqType;		       /* always X_DRIGetClientDriverName */
+    CARD16 length B16;
+    CARD32 screen B32;
+} xXF86DRIGetClientDriverNameReq;
+
+#define sz_xXF86DRIGetClientDriverNameReq	8
+
+typedef struct
+{
+    BYTE type;			       /* X_Reply */
+    BOOL pad1;
+    CARD16 sequenceNumber B16;
+    CARD32 length B32;
+    CARD32 ddxDriverMajorVersion B32;
+    CARD32 ddxDriverMinorVersion B32;
+    CARD32 ddxDriverPatchVersion B32;
+    CARD32 clientDriverNameLength B32;
+    CARD32 pad5 B32;
+    CARD32 pad6 B32;
+} xXF86DRIGetClientDriverNameReply;
+
+#define sz_xXF86DRIGetClientDriverNameReply	32
+
+typedef struct _XF86DRICreateContext
+{
+    CARD8 reqType;		       /* always DRIReqCode */
+    CARD8 driReqType;		       /* always X_DRICreateContext */
+    CARD16 length B16;
+    CARD32 screen B32;
+    CARD32 visual B32;
+    CARD32 context B32;
+} xXF86DRICreateContextReq;
+
+#define sz_xXF86DRICreateContextReq	16
+
+typedef struct
+{
+    BYTE type;			       /* X_Reply */
+    BOOL pad1;
+    CARD16 sequenceNumber B16;
+    CARD32 length B32;
+    CARD32 hHWContext B32;
+    CARD32 pad2 B32;
+    CARD32 pad3 B32;
+    CARD32 pad4 B32;
+    CARD32 pad5 B32;
+    CARD32 pad6 B32;
+} xXF86DRICreateContextReply;
+
+#define sz_xXF86DRICreateContextReply	32
+
+typedef struct _XF86DRIDestroyContext
+{
+    CARD8 reqType;		       /* always DRIReqCode */
+    CARD8 driReqType;		       /* always X_DRIDestroyContext */
+    CARD16 length B16;
+    CARD32 screen B32;
+    CARD32 context B32;
+} xXF86DRIDestroyContextReq;
+
+#define sz_xXF86DRIDestroyContextReq	12
+
+typedef struct _XF86DRICreateDrawable
+{
+    CARD8 reqType;		       /* always DRIReqCode */
+    CARD8 driReqType;		       /* always X_DRICreateDrawable */
+    CARD16 length B16;
+    CARD32 screen B32;
+    CARD32 drawable B32;
+} xXF86DRICreateDrawableReq;
+
+#define sz_xXF86DRICreateDrawableReq	12
+
+typedef struct
+{
+    BYTE type;			       /* X_Reply */
+    BOOL pad1;
+    CARD16 sequenceNumber B16;
+    CARD32 length B32;
+    CARD32 hHWDrawable B32;
+    CARD32 pad2 B32;
+    CARD32 pad3 B32;
+    CARD32 pad4 B32;
+    CARD32 pad5 B32;
+    CARD32 pad6 B32;
+} xXF86DRICreateDrawableReply;
+
+#define sz_xXF86DRICreateDrawableReply	32
+
+typedef struct _XF86DRIDestroyDrawable
+{
+    CARD8 reqType;		       /* always DRIReqCode */
+    CARD8 driReqType;		       /* always X_DRIDestroyDrawable */
+    CARD16 length B16;
+    CARD32 screen B32;
+    CARD32 drawable B32;
+} xXF86DRIDestroyDrawableReq;
+
+#define sz_xXF86DRIDestroyDrawableReq	12
+
+typedef struct _XF86DRIGetDrawableInfo
+{
+    CARD8 reqType;		       /* always DRIReqCode */
+    CARD8 driReqType;		       /* always X_DRIGetDrawableInfo */
+    CARD16 length B16;
+    CARD32 screen B32;
+    CARD32 drawable B32;
+} xXF86DRIGetDrawableInfoReq;
+
+#define sz_xXF86DRIGetDrawableInfoReq	12
+
+typedef struct
+{
+    BYTE type;			       /* X_Reply */
+    BOOL pad1;
+    CARD16 sequenceNumber B16;
+    CARD32 length B32;
+    CARD32 drawableTableIndex B32;
+    CARD32 drawableTableStamp B32;
+    INT16 drawableX B16;
+    INT16 drawableY B16;
+    INT16 drawableWidth B16;
+    INT16 drawableHeight B16;
+    CARD32 numClipRects B32;
+    INT16 backX B16;
+    INT16 backY B16;
+    CARD32 numBackClipRects B32;
+} xXF86DRIGetDrawableInfoReply;
+
+#define sz_xXF86DRIGetDrawableInfoReply	36
+
+typedef struct _XF86DRIGetDeviceInfo
+{
+    CARD8 reqType;		       /* always DRIReqCode */
+    CARD8 driReqType;		       /* always X_DRIGetDeviceInfo */
+    CARD16 length B16;
+    CARD32 screen B32;
+} xXF86DRIGetDeviceInfoReq;
+
+#define sz_xXF86DRIGetDeviceInfoReq	8
+
+typedef struct
+{
+    BYTE type;			       /* X_Reply */
+    BOOL pad1;
+    CARD16 sequenceNumber B16;
+    CARD32 length B32;
+    CARD32 hFrameBufferLow B32;
+    CARD32 hFrameBufferHigh B32;
+    CARD32 framebufferOrigin B32;
+    CARD32 framebufferSize B32;
+    CARD32 framebufferStride B32;
+    CARD32 devPrivateSize B32;
+} xXF86DRIGetDeviceInfoReply;
+
+#define sz_xXF86DRIGetDeviceInfoReply	32
+
+typedef struct _XF86DRIOpenFullScreen
+{
+    CARD8 reqType;		       /* always DRIReqCode */
+    CARD8 driReqType;		       /* always X_DRIOpenFullScreen */
+    CARD16 length B16;
+    CARD32 screen B32;
+    CARD32 drawable B32;
+} xXF86DRIOpenFullScreenReq;
+
+#define sz_xXF86DRIOpenFullScreenReq    12
+
+typedef struct
+{
+    BYTE type;
+    BOOL pad1;
+    CARD16 sequenceNumber B16;
+    CARD32 length B32;
+    CARD32 isFullScreen B32;
+    CARD32 pad2 B32;
+    CARD32 pad3 B32;
+    CARD32 pad4 B32;
+    CARD32 pad5 B32;
+    CARD32 pad6 B32;
+} xXF86DRIOpenFullScreenReply;
+
+#define sz_xXF86DRIOpenFullScreenReply  32
+
+typedef struct _XF86DRICloseFullScreen
+{
+    CARD8 reqType;		       /* always DRIReqCode */
+    CARD8 driReqType;		       /* always X_DRICloseFullScreen */
+    CARD16 length B16;
+    CARD32 screen B32;
+    CARD32 drawable B32;
+} xXF86DRICloseFullScreenReq;
+
+#define sz_xXF86DRICloseFullScreenReq   12
+
+typedef struct
+{
+    BYTE type;
+    BOOL pad1;
+    CARD16 sequenceNumber B16;
+    CARD32 length B32;
+    CARD32 pad2 B32;
+    CARD32 pad3 B32;
+    CARD32 pad4 B32;
+    CARD32 pad5 B32;
+    CARD32 pad6 B32;
+    CARD32 pad7 B32;
+} xXF86DRICloseFullScreenReply;
+
+#define sz_xXF86DRICloseFullScreenReply  32
+
+#endif /* _XF86DRISTR_H_ */

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File xf86-video-intel-xvmc_i915_i945.diff of Package xorg-x11-driver-video (Revision a271f0c2c57517d06888df449e2825f6)

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