Properly support BGRA textures on desktop GL

webkit/gpu/webgraphicscontext3d_in_process_impl.cc

 // Copyright (c) 2011 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 "webkit/gpu/webgraphicscontext3d_in_process_impl.h"
 
 #include <string.h>
 
 #include <algorithm>
 #include <string>
@@ skipping 1312 matching lines @@
 
 DELEGATE_TO_GL_2(sampleCoverage, SampleCoverage, WGC3Dclampf, WGC3Dboolean)
 
 DELEGATE_TO_GL_4(scissor, Scissor, WGC3Dint, WGC3Dint, WGC3Dsizei, WGC3Dsizei)
 
 void WebGraphicsContext3DInProcessImpl::texImage2D(
     WGC3Denum target, WGC3Dint level, WGC3Denum internalFormat,
     WGC3Dsizei width, WGC3Dsizei height, WGC3Dint border,
     WGC3Denum format, WGC3Denum type, const void* pixels) {
   makeContextCurrent();
+  if (gfx::GetGLImplementation() != gfx::kGLImplementationEGLGLES2) {
+    if (format == GL_BGRA_EXT && internalFormat == GL_BGRA_EXT) {
+      internalFormat = GL_RGBA;
+    } else if (type == GL_FLOAT) {
+      if (format == GL_RGBA) {
+        internalFormat = GL_RGBA32F_ARB;
+      } else if (format == GL_RGB) {
+        internalFormat = GL_RGB32F_ARB;
+      }
+    }
+  }
   glTexImage2D(target, level, internalFormat,
                width, height, border, format, type, pixels);
 }
 
 void WebGraphicsContext3DInProcessImpl::shaderSource(
     WebGLId shader, const WGC3Dchar* source) {
   makeContextCurrent();
   GLint length = source ? strlen(source) : 0;
   ShaderSourceMap::iterator result = shader_source_map_.find(shader);
   if (result != shader_source_map_.end()) {
@@ skipping 287 matching lines @@
   if (length > 1) {
     entry->translated_source.reset(new char[length]);
     ShGetObjectCode(compiler, entry->translated_source.get());
   }
   entry->is_valid = true;
   return true;
 }
 
 }  // namespace gpu
 }  // namespace webkit