Enforce RGB even on buggy drivers.

gpu/command_buffer/service/framebuffer_manager.h

 // Copyright (c) 2011 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 GPU_COMMAND_BUFFER_SERVICE_FRAMEBUFFER_MANAGER_H_
 #define GPU_COMMAND_BUFFER_SERVICE_FRAMEBUFFER_MANAGER_H_
 
 #include "base/basictypes.h"
 #include "base/hash_tables.h"
 #include "base/memory/ref_counted.h"
@@ skipping 18 matching lines @@
      public:
       typedef scoped_refptr<Attachment> Ref;
 
       virtual ~Attachment() { }
       virtual GLsizei width() const = 0;
       virtual GLsizei height() const = 0;
       virtual GLenum internal_format() const = 0;
       virtual GLsizei samples() const = 0;
       virtual bool cleared() const = 0;
       virtual void set_cleared() = 0;
+      virtual bool IsTexture(TextureManager::TextureInfo* texture) const = 0;
     };
 
     explicit FramebufferInfo(GLuint service_id);
 
     GLuint service_id() const {
       return service_id_;
     }
 
     bool HasUnclearedAttachment(GLenum attachment) const;
 
@@ skipping 16 matching lines @@
     }
 
     void MarkAsValid() {
       has_been_bound_ = true;
     }
 
     bool IsValid() const {
       return has_been_bound_ && !IsDeleted();
     }
 
+    bool HasDepthAttachment() const;
+    bool HasStencilAttachment() const;
+    GLenum GetColorAttachmentFormat() const;
+
     // We can't know if the frame buffer is complete since that is
-    // implementation  dependent and we'd have to check after every glTexImage
+    // implementation dependent and we'd have to check after every glTexImage
     // call but we can know in certain cases that it's NOT complete which we
     // need to enforce the OpenGL ES 2.0 spec on top of DesktopGL.
     bool IsNotComplete() const;
 
    private:
     friend class FramebufferManager;
     friend class base::RefCounted<FramebufferInfo>;
 
     ~FramebufferInfo();
 
@@ skipping 38 matching lines @@
   typedef base::hash_map<GLuint, FramebufferInfo::Ref> FramebufferInfoMap;
   FramebufferInfoMap framebuffer_infos_;
 
   DISALLOW_COPY_AND_ASSIGN(FramebufferManager);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_FRAMEBUFFER_MANAGER_H_