Lazy initialize WGC3DInProcessCommandBufferImpl

webkit/gpu/webgraphicscontext3d_in_process_command_buffer_impl.h

 // 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.
 
 #ifndef WEBKIT_GPU_WEBGRAPHICSCONTEXT3D_IN_PROCESS_COMMAND_BUFFER_IMPL_H_
 #define WEBKIT_GPU_WEBGRAPHICSCONTEXT3D_IN_PROCESS_COMMAND_BUFFER_IMPL_H_
 
 #if defined(ENABLE_GPU)
 
 #include <vector>
@@ skipping 28 matching lines @@
 
 namespace webkit {
 namespace gpu {
 
 class GLInProcessContext;
 
 class WEBKIT_GPU_EXPORT WebGraphicsContext3DInProcessCommandBufferImpl
     : public NON_EXPORTED_BASE(WebKit::WebGraphicsContext3D) {
  public:
 
-  WebGraphicsContext3DInProcessCommandBufferImpl();
+  explicit WebGraphicsContext3DInProcessCommandBufferImpl(
+      const WebKit::WebGraphicsContext3D::Attributes& attributes);
   virtual ~WebGraphicsContext3DInProcessCommandBufferImpl();
 
-  bool Initialize(WebKit::WebGraphicsContext3D::Attributes attributes,
-                  WebKit::WebGraphicsContext3D* view_context);
-
   //----------------------------------------------------------------------
   // WebGraphicsContext3D methods
   virtual bool makeContextCurrent();
 
   virtual int width();
   virtual int height();
 
   virtual bool isGLES2Compliant();
 
   virtual bool setParentContext(WebGraphicsContext3D* parent_context);
@@ skipping 460 matching lines @@
   virtual void drawBuffersEXT(WGC3Dsizei n, const WGC3Denum* bufs);
 
  protected:
   virtual GrGLInterface* onCreateGrGLInterface();
 
  private:
   // SwapBuffers callback.
   void OnSwapBuffersComplete();
   virtual void OnContextLost();
 
+  bool MaybeInitializeGL();
+
   // Used to try to find bugs in code that calls gl directly through the gl api
   // instead of going through WebGraphicsContext3D.
   void ClearContext();
 
+  bool initialized_;
+  bool initialize_failed_;
+
   // The context we use for OpenGL rendering.
   GLInProcessContext* context_;
   // The GLES2Implementation we use for OpenGL rendering.
   ::gpu::gles2::GLES2Implementation* gl_;
 
   WebGraphicsContext3D::WebGraphicsContextLostCallback* context_lost_callback_;
   WGC3Denum context_lost_reason_;
 
   WebKit::WebGraphicsContext3D::Attributes attributes_;
   int cached_width_, cached_height_;
 
   // For tracking which FBO is bound.
   WebGLId bound_fbo_;
 
   // Errors raised by synthesizeGLError().
   std::vector<WGC3Denum> synthetic_errors_;
 
   std::vector<uint8> scanline_;
   void FlipVertically(uint8* framebuffer,
                       unsigned int width,
                       unsigned int height);
 };
 
 }  // namespace gpu
 }  // namespace webkit
 
 #endif  // defined(ENABLE_GPU)
 #endif  // WEBKIT_GPU_WEBGRAPHICSCONTEXT3D_IN_PROCESS_COMMAND_BUFFER_IMPL_H_