debug-depth-video-with-copy-texture

third_party/WebKit/Source/modules/webgl/WebGL2RenderingContextBase.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "modules/webgl/WebGL2RenderingContextBase.h"
 
 #include "bindings/modules/v8/WebGLAny.h"
 #include "core/frame/ImageBitmap.h"
 #include "core/html/HTMLCanvasElement.h"
 #include "core/html/HTMLImageElement.h"
@@ skipping 619 matching lines @@
     GLsizei width,
     GLsizei height) {
   return IntRect(m_unpackSkipPixels, m_unpackSkipRows, width, height);
 }
 
 bool WebGL2RenderingContextBase::canUseTexImageByGPU(
     TexImageFunctionID functionID,
     GLint internalformat,
     GLenum type) {
   switch (internalformat) {
-    case GL_RGB565:
-    case GL_RGBA4:
+#if OS(MACOSX)
+    // RGB5_A1 is not color-renderable on NVIDIA Mac, see crbug.com/676209.
     case GL_RGB5_A1:
-      // FIXME: ES3 limitation that CopyTexImage with sized internalformat,
-      // component sizes have to match the source color format.
+#endif
+    // TODO(qiankun.miao@intel.com): in ES3, component sizes have to match the
+    // source color format for CopyTexImage with sized internalformat.
+    case GL_RGB9_E5:
       return false;
     default:
       break;
   }
   return WebGLRenderingContextBase::canUseTexImageByGPU(functionID,
                                                         internalformat, type);
 }
 
 void WebGL2RenderingContextBase::invalidateFramebuffer(
     GLenum target,
@@ skipping 5012 matching lines @@
 
 void WebGL2RenderingContextBase::
     DrawingBufferClientRestorePixelUnpackBufferBinding() {
   if (!contextGL())
     return;
   contextGL()->BindBuffer(GL_PIXEL_UNPACK_BUFFER,
                           objectOrZero(m_boundPixelUnpackBuffer.get()));
 }
 
 }  // namespace blink