gpu/blink/webgraphicscontext3d_in_process_command_buffer_impl.h

   1 // Copyright (c) 2012 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 GPU_BLINK_WEBGRAPHICSCONTEXT3D_IN_PROCESS_COMMAND_BUFFER_IMPL_H_
   6 #define GPU_BLINK_WEBGRAPHICSCONTEXT3D_IN_PROCESS_COMMAND_BUFFER_IMPL_H_
   7
   8 #include <vector>
   9
  10 #include "base/compiler_specific.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "gpu/blink/gpu_blink_export.h"
  13 #include "gpu/blink/webgraphicscontext3d_impl.h"
  14 #include "gpu/command_buffer/client/gl_in_process_context.h"
  15 #include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
  16 #include "third_party/WebKit/public/platform/WebString.h"
  17 #include "ui/gfx/native_widget_types.h"
  18
  19 namespace gpu {
  20 class ContextSupport;
  21 class GLInProcessContext;
  22
  23 namespace gles2 {
  24 class GLES2Interface;
  25 class GLES2Implementation;
  26 struct ContextCreationAttribHelper;
  27 }
  28 }
  29
  30 namespace gpu_blink {
  31
  32 class GPU_BLINK_EXPORT WebGraphicsContext3DInProcessCommandBufferImpl
  33     : public WebGraphicsContext3DImpl {
  34  public:
  35   enum MappedMemoryReclaimLimit {
  36     kNoLimit = 0,
  37   };
  38
  39   static scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl>
  40       CreateViewContext(
  41           const blink::WebGraphicsContext3D::Attributes& attributes,
  42           bool lose_context_when_out_of_memory,
  43           gfx::AcceleratedWidget window);
  44
  45   static scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl>
  46       CreateOffscreenContext(
  47           const blink::WebGraphicsContext3D::Attributes& attributes,
  48           bool lose_context_when_out_of_memory);
  49
  50   static scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl>
  51       WrapContext(
  52           scoped_ptr< ::gpu::GLInProcessContext> context,
  53           const blink::WebGraphicsContext3D::Attributes& attributes);
  54
  55   virtual ~WebGraphicsContext3DInProcessCommandBufferImpl();
  56
  57   size_t GetMappedMemoryLimit();
  58
  59   bool InitializeOnCurrentThread();
  60
  61   //----------------------------------------------------------------------
  62   // WebGraphicsContext3D methods
  63   virtual bool isContextLost();
  64
  65   virtual WGC3Denum getGraphicsResetStatusARB();
  66
  67   ::gpu::ContextSupport* GetContextSupport();
  68
  69   ::gpu::gles2::GLES2Implementation* GetImplementation() {
  70     return real_gl_;
  71   }
  72
  73  private:
  74   WebGraphicsContext3DInProcessCommandBufferImpl(
  75       scoped_ptr< ::gpu::GLInProcessContext> context,
  76       const blink::WebGraphicsContext3D::Attributes& attributes,
  77       bool lose_context_when_out_of_memory,
  78       bool is_offscreen,
  79       gfx::AcceleratedWidget window);
  80
  81   void OnContextLost();
  82
  83   bool MaybeInitializeGL();
  84
  85   // Used to try to find bugs in code that calls gl directly through the gl api
  86   // instead of going through WebGraphicsContext3D.
  87   void ClearContext();
  88
  89   ::gpu::gles2::ContextCreationAttribHelper attribs_;
  90   bool share_resources_;
  91   bool webgl_context_;
  92
  93   bool is_offscreen_;
  94   // Only used when not offscreen.
  95   gfx::AcceleratedWidget window_;
  96
  97   // The context we use for OpenGL rendering.
  98   scoped_ptr< ::gpu::GLInProcessContext> context_;
  99   // The GLES2Implementation we use for OpenGL rendering.
 100   ::gpu::gles2::GLES2Implementation* real_gl_;
 101 };
 102
 103 }  // namespace gpu_blink
 104
 105 #endif  // GPU_BLINK_WEBGRAPHICSCONTEXT3D_IN_PROCESS_COMMAND_BUFFER_IMPL_H_