Change renderer compositor command buffer to be 64kB

content/renderer/render_widget.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/renderer/render_widget.h"
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 987 matching lines @@
   const base::CommandLine& command_line =
       *base::CommandLine::ForCurrentProcess();
   bool use_software = fallback;
   if (command_line.HasSwitch(switches::kDisableGpuCompositing))
     use_software = true;
 
   scoped_refptr<ContextProviderCommandBuffer> context_provider;
   scoped_refptr<ContextProviderCommandBuffer> worker_context_provider;
   if (!use_software) {
     context_provider = ContextProviderCommandBuffer::Create(
-        CreateGraphicsContext3D(), RENDER_COMPOSITOR_CONTEXT);
+        CreateGraphicsContext3D(true), RENDER_COMPOSITOR_CONTEXT);
     if (!context_provider.get()) {
       // Cause the compositor to wait and try again.
       return scoped_ptr<cc::OutputSurface>();
     }
 
     worker_context_provider = ContextProviderCommandBuffer::Create(
-        CreateGraphicsContext3D(), RENDER_WORKER_CONTEXT);
+        CreateGraphicsContext3D(false), RENDER_WORKER_CONTEXT);
     if (!worker_context_provider.get()) {
       // Cause the compositor to wait and try again.
       return scoped_ptr<cc::OutputSurface>();
     }
   }
 
   uint32 output_surface_id = next_output_surface_id_++;
   if (command_line.HasSwitch(switches::kEnableDelegatedRenderer)) {
     DCHECK(compositor_deps_->GetCompositorImplThreadTaskRunner());
     return scoped_ptr<cc::OutputSurface>(new DelegatedCompositorOutputSurface(
@@ skipping 1325 matching lines @@
 #if defined(OS_ANDROID)
   text_field_is_dirty_ = true;
 #endif
 }
 
 bool RenderWidget::HasTouchEventHandlersAt(const gfx::Point& point) const {
   return true;
 }
 
 scoped_ptr<WebGraphicsContext3DCommandBufferImpl>
-RenderWidget::CreateGraphicsContext3D() {
+RenderWidget::CreateGraphicsContext3D(bool compositor) {
   if (!webwidget_)
     return scoped_ptr<WebGraphicsContext3DCommandBufferImpl>();
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDisableGpuCompositing))
     return scoped_ptr<WebGraphicsContext3DCommandBufferImpl>();
   if (!RenderThreadImpl::current())
     return scoped_ptr<WebGraphicsContext3DCommandBufferImpl>();
   CauseForGpuLaunch cause =
       CAUSE_FOR_GPU_LAUNCH_WEBGRAPHICSCONTEXT3DCOMMANDBUFFERIMPL_INITIALIZE;
   scoped_refptr<GpuChannelHost> gpu_channel_host(
@@ skipping 34 matching lines @@
   const size_t kMillisecondsPerFrame = 16;
   // Assuming a two frame deep pipeline between the CPU and the GPU.
   size_t max_transfer_buffer_usage_mb =
       static_cast<size_t>(2 * kMillisecondsPerFrame * max_mb_uploaded_per_ms);
   static const size_t kBytesPerMegabyte = 1024 * 1024;
   // We keep the MappedMemoryReclaimLimit the same as the upload limit
   // to avoid unnecessarily stalling the compositor thread.
   limits.mapped_memory_reclaim_limit =
       max_transfer_buffer_usage_mb * kBytesPerMegabyte;
 #endif
+  if (compositor)
+    limits.command_buffer_size = 64 * 1024;
 
   scoped_ptr<WebGraphicsContext3DCommandBufferImpl> context(
       new WebGraphicsContext3DCommandBufferImpl(surface_id(),
                                                 GetURLForGraphicsContext3D(),
                                                 gpu_channel_host.get(),
                                                 attributes,
                                                 lose_context_when_out_of_memory,
                                                 limits,
                                                 NULL));
   return context.Pass();
@@ skipping 19 matching lines @@
 void RenderWidget::RegisterVideoHoleFrame(RenderFrameImpl* frame) {
   video_hole_frames_.AddObserver(frame);
 }
 
 void RenderWidget::UnregisterVideoHoleFrame(RenderFrameImpl* frame) {
   video_hole_frames_.RemoveObserver(frame);
 }
 #endif  // defined(VIDEO_HOLE)
 
 }  // namespace content