android_webview/browser/deferred_gpu_command_service.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef ANDROID_WEBVIEW_BROWSER_DEFERRED_GPU_COMMAND_SERVICE_H_
   6 #define ANDROID_WEBVIEW_BROWSER_DEFERRED_GPU_COMMAND_SERVICE_H_
   7
   8 #include <queue>
   9
  10 #include "base/lazy_instance.h"
  11 #include "base/memory/ref_counted.h"
  12 #include "base/threading/thread_local.h"
  13 #include "gpu/command_buffer/service/in_process_command_buffer.h"
  14
  15 namespace android_webview {
  16
  17 class ScopedAllowGL {
  18  public:
  19   ScopedAllowGL();
  20   ~ScopedAllowGL();
  21
  22   static bool IsAllowed();
  23
  24  private:
  25   static base::LazyInstance<base::ThreadLocalBoolean> allow_gl;
  26
  27   DISALLOW_COPY_AND_ASSIGN(ScopedAllowGL);
  28 };
  29
  30 class DeferredGpuCommandService
  31     : public gpu::InProcessCommandBuffer::Service,
  32       public base::RefCountedThreadSafe<DeferredGpuCommandService> {
  33  public:
  34   static void SetInstance();
  35   static DeferredGpuCommandService* GetInstance();
  36
  37   virtual void ScheduleTask(const base::Closure& task) OVERRIDE;
  38   virtual void ScheduleIdleWork(const base::Closure& task) OVERRIDE;
  39   virtual bool UseVirtualizedGLContexts() OVERRIDE;
  40   virtual scoped_refptr<gpu::gles2::ShaderTranslatorCache>
  41       shader_translator_cache() OVERRIDE;
  42
  43   void RunTasks();
  44
  45   virtual void AddRef() const OVERRIDE;
  46   virtual void Release() const OVERRIDE;
  47
  48  protected:
  49   virtual ~DeferredGpuCommandService();
  50   friend class base::RefCountedThreadSafe<DeferredGpuCommandService>;
  51
  52  private:
  53   static void RequestProcessGL();
  54
  55   DeferredGpuCommandService();
  56
  57   base::Lock tasks_lock_;
  58   std::queue<base::Closure> tasks_;
  59
  60   scoped_refptr<gpu::gles2::ShaderTranslatorCache> shader_translator_cache_;
  61   DISALLOW_COPY_AND_ASSIGN(DeferredGpuCommandService);
  62 };
  63
  64 }  // namespace android_webview
  65
  66 #endif  // ANDROID_WEBVIEW_BROWSER_DEFERRED_GPU_COMMAND_SERVICE_H_