File 0001-platforms-drm-only-use-glDrawBuffer-with-d... of Package kwin5

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File 0001-platforms-drm-only-use-glDrawBuffer-with-desktop-GL.patch of Package kwin5 (Revision f6ed985e1b78943f91439c9247afae7b)

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From c4c03e2559f1ecf6f80ae965230bf0a19e17e210 Mon Sep 17 00:00:00 2001
From: Xaver Hugl <xaver.hugl@gmail.com>
Date: Wed, 27 Oct 2021 11:45:06 +0200
Subject: [PATCH] platforms/drm: only use glDrawBuffer with desktop GL

That function is not available with GLES, and calling it is only necessary
for NVidia.

(cherry picked from commit 1626d7a51a0170fac3a54bca2f736eb50147fb77)
---
 src/plugins/platforms/drm/egl_gbm_backend.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/plugins/platforms/drm/egl_gbm_backend.cpp b/src/plugins/platforms/drm/egl_gbm_backend.cpp
index 8e3761eb4..c13c707a7 100644
--- a/src/plugins/platforms/drm/egl_gbm_backend.cpp
+++ b/src/plugins/platforms/drm/egl_gbm_backend.cpp
@@ -359,7 +359,9 @@ bool EglGbmBackend::makeContextCurrent(const Output::RenderData &render) const
         qCCritical(KWIN_DRM) << "eglMakeCurrent failed:" << getEglErrorString();
         return false;
     }
-    glDrawBuffer(GL_BACK);
+    if (!GLPlatform::instance()->isGLES()) {
+        glDrawBuffer(GL_BACK);
+    }
     return true;
 }
 
-- 
2.33.1

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File 0001-platforms-drm-only-use-glDrawBuffer-with-desktop-GL.patch of Package kwin5 (Revision f6ed985e1b78943f91439c9247afae7b)

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