Select BackingStrategy based on GpuPreferences

content/common/gpu/media/android_video_decode_accelerator.cc

 // Copyright (c) 2013 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/android_video_decode_accelerator.h"
 
 #include <stddef.h>
 
 #include "base/android/build_info.h"
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "base/trace_event/trace_event.h"
 #include "content/common/gpu/gpu_channel.h"
 #include "content/common/gpu/media/android_copying_backing_strategy.h"
 #include "content/common/gpu/media/android_deferred_rendering_backing_strategy.h"
 #include "content/common/gpu/media/avda_return_on_failure.h"
 #include "content/common/gpu/media/shared_memory_region.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
-#include "gpu/command_buffer/service/gpu_switches.h"
 #include "gpu/command_buffer/service/mailbox_manager.h"
 #include "media/base/android/media_codec_bridge.h"
 #include "media/base/android/media_codec_util.h"
 #include "media/base/bind_to_current_loop.h"
 #include "media/base/bitstream_buffer.h"
 #include "media/base/limits.h"
 #include "media/base/media.h"
 #include "media/base/timestamp_constants.h"
 #include "media/base/video_decoder_config.h"
 #include "media/video/picture.h"
@@ skipping 225 matching lines @@
       needs_protected_surface_(false),
       state_(NO_ERROR),
       picturebuffers_requested_(false),
       gl_decoder_(decoder),
       media_drm_bridge_cdm_context_(nullptr),
       cdm_registration_id_(0),
       pending_input_buf_index_(-1),
       error_sequence_token_(0),
       defer_errors_(false),
       weak_this_factory_(this) {
-  if (UseDeferredRenderingStrategy()) {
+  const gpu::GpuPreferences& gpu_preferences =
+      gl_decoder_->GetContextGroup()->gpu_preferences();
+  if (UseDeferredRenderingStrategy(gpu_preferences)) {
     // TODO(liberato, watk): Figure out what we want to do about zero copy for
     // fullscreen external SurfaceView in WebView.  http://crbug.com/582170.
     DCHECK(!gl_decoder_->GetContextGroup()->mailbox_manager()->UsesSync());
     DVLOG(1) << __FUNCTION__ << ", using deferred rendering strategy.";
     strategy_.reset(new AndroidDeferredRenderingBackingStrategy(this));
   } else {
     DVLOG(1) << __FUNCTION__ << ", using copy back strategy.";
     strategy_.reset(new AndroidCopyingBackingStrategy(this));
   }
 }
@@ skipping 864 matching lines @@
     most_recent_work_ = now;
   }
 
   if (should_be_running)
     g_avda_timer.Pointer()->StartTimer(this);
   else
     g_avda_timer.Pointer()->StopTimer(this);
 }
 
 // static
-bool AndroidVideoDecodeAccelerator::UseDeferredRenderingStrategy() {
-  const base::CommandLine* cmd_line = base::CommandLine::ForCurrentProcess();
+bool AndroidVideoDecodeAccelerator::UseDeferredRenderingStrategy(
+    const gpu::GpuPreferences& gpu_preferences) {
   // TODO(liberato, watk): Figure out what we want to do about zero copy for
   // fullscreen external SurfaceView in WebView.  http://crbug.com/582170.
-  return !cmd_line->HasSwitch(switches::kEnableThreadedTextureMailboxes);
+  return !gpu_preferences.enable_threaded_texture_mailboxes;
 }
 
 // static
 media::VideoDecodeAccelerator::Capabilities
-AndroidVideoDecodeAccelerator::GetCapabilities() {
+AndroidVideoDecodeAccelerator::GetCapabilities(
+    const gpu::GpuPreferences& gpu_preferences) {
   Capabilities capabilities;
   SupportedProfiles& profiles = capabilities.supported_profiles;
 
   SupportedProfile profile;
 
   if (media::MediaCodecUtil::IsVp8DecoderAvailable()) {
     profile.profile = media::VP8PROFILE_ANY;
     profile.min_resolution.SetSize(0, 0);
     profile.max_resolution.SetSize(1920, 1088);
     // If we know MediaCodec will just create a software codec, prefer our
@@ skipping 24 matching lines @@
     SupportedProfile profile;
     profile.profile = supported_profile;
     profile.min_resolution.SetSize(0, 0);
     // Advertise support for 4k and let the MediaCodec fail when decoding if it
     // doesn't support the resolution. It's assumed that consumers won't have
     // software fallback for H264 on Android anyway.
     profile.max_resolution.SetSize(3840, 2160);
     profiles.push_back(profile);
   }
 
-  if (UseDeferredRenderingStrategy()) {
+  if (UseDeferredRenderingStrategy(gpu_preferences)) {
     capabilities.flags = media::VideoDecodeAccelerator::Capabilities::
                              NEEDS_ALL_PICTURE_BUFFERS_TO_DECODE |
                          media::VideoDecodeAccelerator::Capabilities::
                              SUPPORTS_EXTERNAL_OUTPUT_SURFACE;
   }
 
   return capabilities;
 }
 
 }  // namespace content