webkit/common/gpu/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 WEBKIT_COMMON_GPU_WEBGRAPHICSCONTEXT3D_IN_PROCESS_COMMAND_BUFFER_IMPL_H_
   6 #define WEBKIT_COMMON_GPU_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/command_buffer/client/gl_in_process_context.h"
  13 #include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
  14 #include "third_party/WebKit/public/platform/WebString.h"
  15 #include "ui/gfx/native_widget_types.h"
  16 #include "webkit/common/gpu/webgraphicscontext3d_impl.h"
  17 #include "webkit/common/gpu/webkit_gpu_export.h"
  18
  19 namespace gpu {
  20 class ContextSupport;
  21
  22 namespace gles2 {
  23 class GLES2Interface;
  24 class GLES2Implementation;
  25 struct ContextCreationAttribHelper;
  26 }
  27 }
  28
  29 namespace gpu {
  30 class GLInProcessContext;
  31 }
  32
  33 namespace webkit {
  34 namespace gpu {
  35
  36 class WEBKIT_GPU_EXPORT WebGraphicsContext3DInProcessCommandBufferImpl
  37     : public WebGraphicsContext3DImpl {
  38  public:
  39   enum MappedMemoryReclaimLimit {
  40     kNoLimit = 0,
  41   };
  42
  43   static scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl>
  44       CreateViewContext(
  45           const blink::WebGraphicsContext3D::Attributes& attributes,
  46           bool lose_context_when_out_of_memory,
  47           gfx::AcceleratedWidget window);
  48
  49   static scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl>
  50       CreateOffscreenContext(
  51           const blink::WebGraphicsContext3D::Attributes& attributes,
  52           bool lose_context_when_out_of_memory);
  53
  54   static scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl>
  55       WrapContext(
  56           scoped_ptr< ::gpu::GLInProcessContext> context,
  57           const blink::WebGraphicsContext3D::Attributes& attributes);
  58
  59   virtual ~WebGraphicsContext3DInProcessCommandBufferImpl();
  60
  61   size_t GetMappedMemoryLimit();
  62
  63   // WebGraphicsContext3DImpl methods
  64   virtual bool InitializeOnCurrentThread() OVERRIDE;
  65
  66   //----------------------------------------------------------------------
  67   // WebGraphicsContext3D methods
  68   virtual bool isContextLost();
  69
  70   virtual WGC3Denum getGraphicsResetStatusARB();
  71
  72   ::gpu::ContextSupport* GetContextSupport();
  73
  74   ::gpu::gles2::GLES2Implementation* GetImplementation() {
  75     return real_gl_;
  76   }
  77
  78  private:
  79   WebGraphicsContext3DInProcessCommandBufferImpl(
  80       scoped_ptr< ::gpu::GLInProcessContext> context,
  81       const blink::WebGraphicsContext3D::Attributes& attributes,
  82       bool lose_context_when_out_of_memory,
  83       bool is_offscreen,
  84       gfx::AcceleratedWidget window);
  85
  86   void OnContextLost();
  87
  88   bool MaybeInitializeGL();
  89
  90   // Used to try to find bugs in code that calls gl directly through the gl api
  91   // instead of going through WebGraphicsContext3D.
  92   void ClearContext();
  93
  94   ::gpu::gles2::ContextCreationAttribHelper attribs_;
  95   bool share_resources_;
  96   bool webgl_context_;
  97
  98   bool is_offscreen_;
  99   // Only used when not offscreen.
 100   gfx::AcceleratedWidget window_;
 101
 102   // The context we use for OpenGL rendering.
 103   scoped_ptr< ::gpu::GLInProcessContext> context_;
 104   // The GLES2Implementation we use for OpenGL rendering.
 105   ::gpu::gles2::GLES2Implementation* real_gl_;
 106 };
 107
 108 }  // namespace gpu
 109 }  // namespace webkit
 110
 111 #endif  // WEBKIT_COMMON_GPU_WEBGRAPHICSCONTEXT3D_IN_PROCESS_COMMAND_BUFFER_IMPL_H_