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qt3-devel-doc
qt-3.3.8-libpng15.patch
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File qt-3.3.8-libpng15.patch of Package qt3-devel-doc
$NetBSD: patch-as,v 1.5 2011/03/25 15:28:26 wiz Exp $ --- src/kernel/qpngio.cpp.orig 2007-02-02 10:01:15.000000000 -0400 +++ src/kernel/qpngio.cpp @@ -43,6 +43,7 @@ #include "qiodevice.h" #include <png.h> +#include <zlib.h> #ifdef Q_OS_TEMP @@ -123,9 +124,24 @@ void setup_qt( QImage& image, png_struct png_get_IHDR(png_ptr, info_ptr, &width, &height, &bit_depth, &color_type, 0, 0, 0); + png_colorp info_ptr_palette = NULL; + int info_ptr_num_palette = 0; + if (png_get_valid(png_ptr, info_ptr, PNG_INFO_PLTE)) { + png_get_PLTE(png_ptr, info_ptr, &info_ptr_palette, &info_ptr_num_palette); + } + + png_bytep info_ptr_trans_alpha = NULL; + int info_ptr_num_trans = 0; + png_color_16p info_ptr_trans_color = NULL; + + if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)) { + png_get_tRNS(png_ptr, info_ptr, &info_ptr_trans_alpha, &info_ptr_num_trans, &info_ptr_trans_color); + } + + if ( color_type == PNG_COLOR_TYPE_GRAY ) { // Black & White or 8-bit grayscale - if ( bit_depth == 1 && info_ptr->channels == 1 ) { + if ( bit_depth == 1 && png_get_channels(png_ptr, info_ptr) == 1 ) { png_set_invert_mono( png_ptr ); png_read_update_info( png_ptr, info_ptr ); if (!image.create( width, height, 1, 2, QImage::BigEndian )) @@ -159,7 +175,7 @@ void setup_qt( QImage& image, png_struct image.setColor( i, qRgba(c,c,c,0xff) ); } if ( png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS) ) { - const int g = info_ptr->trans_values.gray; + const int g = info_ptr_trans_color->gray; if (g < ncols) { image.setAlphaBuffer(TRUE); image.setColor(g, image.color(g) & RGB_MASK); @@ -168,7 +184,7 @@ void setup_qt( QImage& image, png_struct } } else if ( color_type == PNG_COLOR_TYPE_PALETTE && png_get_valid(png_ptr, info_ptr, PNG_INFO_PLTE) - && info_ptr->num_palette <= 256 ) + && info_ptr_num_palette <= 256 ) { // 1-bit and 8-bit color if ( bit_depth != 1 ) @@ -176,28 +192,28 @@ void setup_qt( QImage& image, png_struct png_read_update_info( png_ptr, info_ptr ); png_get_IHDR(png_ptr, info_ptr, &width, &height, &bit_depth, &color_type, 0, 0, 0); - if (!image.create(width, height, bit_depth, info_ptr->num_palette, + if (!image.create(width, height, bit_depth, info_ptr_num_palette, QImage::BigEndian)) return; int i = 0; if ( png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS) ) { image.setAlphaBuffer( TRUE ); - while ( i < info_ptr->num_trans ) { + while ( i < info_ptr_num_trans ) { image.setColor(i, qRgba( - info_ptr->palette[i].red, - info_ptr->palette[i].green, - info_ptr->palette[i].blue, - info_ptr->trans[i] + info_ptr_palette[i].red, + info_ptr_palette[i].green, + info_ptr_palette[i].blue, + info_ptr_trans_alpha[i] ) ); i++; } } - while ( i < info_ptr->num_palette ) { + while ( i < info_ptr_num_palette ) { image.setColor(i, qRgba( - info_ptr->palette[i].red, - info_ptr->palette[i].green, - info_ptr->palette[i].blue, + info_ptr_palette[i].red, + info_ptr_palette[i].green, + info_ptr_palette[i].blue, 0xff ) ); @@ -284,7 +300,7 @@ void read_png_image(QImageIO* iio) return; } - if (setjmp(png_ptr->jmpbuf)) { + if (setjmp(png_jmpbuf(png_ptr))) { png_destroy_read_struct(&png_ptr, &info_ptr, &end_info); iio->setStatus(-4); return; @@ -469,7 +485,7 @@ bool QPNGImageWriter::writeImage(const Q return FALSE; } - if (setjmp(png_ptr->jmpbuf)) { + if (setjmp(png_jmpbuf(png_ptr))) { png_destroy_write_struct(&png_ptr, &info_ptr); return FALSE; } @@ -491,10 +507,16 @@ bool QPNGImageWriter::writeImage(const Q png_set_write_fn(png_ptr, (void*)this, qpiw_write_fn, qpiw_flush_fn); +#warning XXXtnn not too sure about this +/* +according to png.h, channels is only used on read, not writes, so we +should be able to comment this out. + info_ptr->channels = (image.depth() == 32) ? (image.hasAlphaBuffer() ? 4 : 3) : 1; +*/ png_set_IHDR(png_ptr, info_ptr, image.width(), image.height(), image.depth() == 1 ? 1 : 8 /* per channel */, @@ -504,11 +526,12 @@ bool QPNGImageWriter::writeImage(const Q : PNG_COLOR_TYPE_RGB : PNG_COLOR_TYPE_PALETTE, 0, 0, 0); + png_color_8 sig_bit; + sig_bit.red = 8; + sig_bit.green = 8; + sig_bit.blue = 8; + png_set_sBIT(png_ptr, info_ptr, &sig_bit); - //png_set_sBIT(png_ptr, info_ptr, 8); - info_ptr->sig_bit.red = 8; - info_ptr->sig_bit.green = 8; - info_ptr->sig_bit.blue = 8; if (image.depth() == 1 && image.bitOrder() == QImage::LittleEndian) png_set_packswap(png_ptr); @@ -522,11 +545,14 @@ bool QPNGImageWriter::writeImage(const Q png_set_PLTE(png_ptr, info_ptr, palette, num_palette); int* trans = new int[num_palette]; int num_trans = 0; + png_colorp info_ptr_palette = NULL; + int tmp; + png_get_PLTE(png_ptr, info_ptr, &info_ptr_palette, &tmp); for (int i=0; i<num_palette; i++) { QRgb rgb=image.color(i); - info_ptr->palette[i].red = qRed(rgb); - info_ptr->palette[i].green = qGreen(rgb); - info_ptr->palette[i].blue = qBlue(rgb); + info_ptr_palette[i].red = qRed(rgb); + info_ptr_palette[i].green = qGreen(rgb); + info_ptr_palette[i].blue = qBlue(rgb); if (image.hasAlphaBuffer()) { trans[i] = rgb >> 24; if (trans[i] < 255) { @@ -534,6 +560,7 @@ bool QPNGImageWriter::writeImage(const Q } } } + png_set_PLTE(png_ptr, info_ptr, info_ptr_palette, num_palette); if (num_trans) { copy_trans = new png_byte[num_trans]; for (int i=0; i<num_trans; i++) @@ -544,7 +571,10 @@ bool QPNGImageWriter::writeImage(const Q } if ( image.hasAlphaBuffer() ) { - info_ptr->sig_bit.alpha = 8; + png_color_8p sig_bit; + png_get_sBIT(png_ptr, info_ptr, &sig_bit); + sig_bit->alpha = 8; + png_set_sBIT(png_ptr, info_ptr, sig_bit); } // Swap ARGB to RGBA (normal PNG format) before saving on @@ -1030,7 +1060,7 @@ int QPNGFormat::decode(QImage& img, QIma return -1; } - if (setjmp((png_ptr)->jmpbuf)) { + if (setjmp(png_jmpbuf(png_ptr))) { png_destroy_read_struct(&png_ptr, &info_ptr, 0); image = 0; return -1; @@ -1057,7 +1087,7 @@ int QPNGFormat::decode(QImage& img, QIma if ( !png_ptr ) return 0; - if (setjmp(png_ptr->jmpbuf)) { + if (setjmp(png_jmpbuf(png_ptr))) { png_destroy_read_struct(&png_ptr, &info_ptr, 0); image = 0; state = MovieStart; @@ -1117,7 +1147,7 @@ void QPNGFormat::end(png_structp png, pn consumer->frameDone(QPoint(offx,offy),r); consumer->end(); state = FrameStart; - unused_data = (int)png->buffer_size; // Since libpng doesn't tell us + unused_data = png_process_data_pause(png, 0); } #ifdef PNG_USER_CHUNKS_SUPPORTED
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