Initial implementation of the DXVA 2.0 H.264 hardware decoder for pepper for Windows. The decodin...

content/common/gpu/media/gpu_video_decode_accelerator.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 "content/common/gpu/media/gpu_video_decode_accelerator.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/stl_util.h"
+
+#if defined(OS_WIN)
+#include "base/win/windows_version.h"
+#endif  // OS_WIN
+
 #include "gpu/command_buffer/common/command_buffer.h"
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_message_utils.h"
 #include "content/common/gpu/gpu_channel.h"
 #include "content/common/gpu/gpu_command_buffer_stub.h"
 #include "content/common/gpu/gpu_messages.h"
-#if defined(OS_CHROMEOS) && defined(ARCH_CPU_ARMEL)
+#if (defined(OS_CHROMEOS) && defined(ARCH_CPU_ARMEL)) || defined(OS_WIN)
+#if defined(OS_WIN)
+#include "content/common/gpu/media/dxva_video_decode_accelerator.h"
+#else  // OS_WIN
 #include "content/common/gpu/media/omx_video_decode_accelerator.h"
+#endif
 #include "ui/gfx/gl/gl_context.h"
 #include "ui/gfx/gl/gl_surface_egl.h"
 #endif
 #include "gpu/command_buffer/service/texture_manager.h"
 #include "ui/gfx/size.h"
 
 using gpu::gles2::TextureManager;
 
 GpuVideoDecodeAccelerator::GpuVideoDecodeAccelerator(
     IPC::Message::Sender* sender,
@@ skipping 71 matching lines @@
   }
   if (!Send(new AcceleratedVideoDecoderHostMsg_ErrorNotification(
           host_route_id_, error))) {
     DLOG(ERROR) << "Send(AcceleratedVideoDecoderHostMsg_ErrorNotification) "
                 << "failed";
   }
 }
 
 void GpuVideoDecodeAccelerator::Initialize(
     const media::VideoDecodeAccelerator::Profile profile,
-    IPC::Message* init_done_msg) {
+    IPC::Message* init_done_msg,
+    base::ProcessHandle renderer_process) {
   DCHECK(!video_decode_accelerator_.get());
   DCHECK(!init_done_msg_);
   DCHECK(init_done_msg);
-#if defined(OS_CHROMEOS) && defined(ARCH_CPU_ARMEL)
+#if (defined(OS_CHROMEOS) && defined(ARCH_CPU_ARMEL)) || defined(OS_WIN)
   DCHECK(stub_ && stub_->decoder());
   init_done_msg_ = init_done_msg;

[Ami GONE FROM CHROMIUM, 2011/12/13 02:37:12]

This needs to be done outside any of the #if guards to ensure correct error
return in case of unsupported HW.  You should get that for free when merging in
http://codereview.chromium.org/8922010/ (which should hopefully land & stick
tonight).

[ananta, 2011/12/13 02:51:18]

Will merge with your change.

-  OmxVideoDecodeAccelerator* omx_decoder = new OmxVideoDecodeAccelerator(this);
-  omx_decoder->SetEglState(
+#if defined(OS_WIN)
+  if (base::win::GetVersion() < base::win::VERSION_WIN7) {
+    NOTIMPLEMENTED() << "HW video decode acceleration not available.";
+    NotifyError(media::VideoDecodeAccelerator::PLATFORM_FAILURE);
+    return;
+  }
+  DLOG(INFO) << "Initializing DXVA HW decoder for windows.";
+  DXVAVideoDecodeAccelerator* video_decoder =
+      new DXVAVideoDecodeAccelerator(this, renderer_process);
+#else  // OS_WIN
+  OmxVideoDecodeAccelerator* video_decoder =
+      new OmxVideoDecodeAccelerator(this);
+  video_decoder->SetEglState(
       gfx::GLSurfaceEGL::GetHardwareDisplay(),
       stub_->decoder()->GetGLContext()->GetHandle());
-  video_decode_accelerator_ = omx_decoder;
+#endif  // OS_WIN
+  video_decode_accelerator_ = video_decoder;
   video_decode_accelerator_->Initialize(profile);
 #else
   NOTIMPLEMENTED() << "HW video decode acceleration not available.";
   NotifyError(media::VideoDecodeAccelerator::PLATFORM_FAILURE);
 #endif  // defined(OS_CHROMEOS) && defined(ARCH_CPU_ARMEL)
 }
 
 void GpuVideoDecodeAccelerator::OnDecode(
     base::SharedMemoryHandle handle, int32 id, int32 size) {
   DCHECK(video_decode_accelerator_.get());
@@ skipping 76 matching lines @@
 
 void GpuVideoDecodeAccelerator::NotifyResetDone() {
   if (!Send(new AcceleratedVideoDecoderHostMsg_ResetDone(host_route_id_)))
     DLOG(ERROR) << "Send(AcceleratedVideoDecoderHostMsg_ResetDone) failed";
 }
 
 bool GpuVideoDecodeAccelerator::Send(IPC::Message* message) {
   DCHECK(sender_);
   return sender_->Send(message);
 }