gpu: Make GPU command decoder know right format of a GPU video texture in Win.

content/common/gpu/media/dxva_video_decode_accelerator.cc

 // Copyright (c) 2012 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 "content/common/gpu/media/dxva_video_decode_accelerator.h"
 
 #if !defined(OS_WIN)
 #error This file should only be built on Windows.
 #endif   // !defined(OS_WIN)
 
@@ skipping 280 matching lines @@
   EGLBoolean ret = eglQuerySurfacePointerANGLE(
       egl_display,
       picture_buffer->decoding_surface_,
       EGL_D3D_TEXTURE_2D_SHARE_HANDLE_ANGLE,
       &share_handle);
 
   RETURN_ON_FAILURE(share_handle && ret == EGL_TRUE,
                     "Failed to query ANGLE surface pointer",
                     linked_ptr<DXVAPictureBuffer>(NULL));
 
+  // TODO(dshwang): after moving to D3D11, use RGBA surface. crbug.com/438691
   HRESULT hr = decoder.device_->CreateTexture(
       buffer.size().width(),
       buffer.size().height(),
       1,
       D3DUSAGE_RENDERTARGET,
       use_rgb ? D3DFMT_X8R8G8B8 : D3DFMT_A8R8G8B8,
       D3DPOOL_DEFAULT,
       picture_buffer->decoding_texture_.Receive(),
       &share_handle);
 
@@ skipping 405 matching lines @@
 void DXVAVideoDecodeAccelerator::Destroy() {
   DCHECK(main_thread_task_runner_->BelongsToCurrentThread());
   Invalidate();
   delete this;
 }
 
 bool DXVAVideoDecodeAccelerator::CanDecodeOnIOThread() {
   return false;
 }
 
+GLenum DXVAVideoDecodeAccelerator::GetSurfaceInternalFormat() const {
+  return GL_BGRA_EXT;
+}
+
 bool DXVAVideoDecodeAccelerator::InitDecoder(media::VideoCodecProfile profile) {
   HMODULE decoder_dll = NULL;
 
   // Profile must fall within the valid range for one of the supported codecs.
   if (profile >= media::H264PROFILE_MIN && profile <= media::H264PROFILE_MAX) {
     // We mimic the steps CoCreateInstance uses to instantiate the object. This
     // was previously done because it failed inside the sandbox, and now is done
     // as a more minimal approach to avoid other side-effects CCI might have (as
     // we are still in a reduced sandbox).
     decoder_dll = ::LoadLibrary(L"msmpeg2vdec.dll");
@@ skipping 710 matching lines @@
   decoder_thread_.Start();
   decoder_thread_task_runner_ = decoder_thread_.task_runner();
 }
 
 bool DXVAVideoDecodeAccelerator::OutputSamplesPresent() {
   base::AutoLock lock(decoder_lock_);
   return !pending_output_samples_.empty();
 }
 
 }  // namespace content