Refactor/Rename a bunch of GPU stuff

gpu/command_buffer/service/framebuffer_manager.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 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"
 #include "base/memory/scoped_ptr.h"
 #include "gpu/command_buffer/service/gl_utils.h"
 #include "gpu/command_buffer/service/renderbuffer_manager.h"
 #include "gpu/command_buffer/service/texture_manager.h"
 #include "gpu/gpu_export.h"
 
 namespace gpu {
 namespace gles2 {
 
+class FramebufferManager;
+
+// Info about a particular Framebuffer.
+class GPU_EXPORT Framebuffer : public base::RefCounted<Framebuffer> {
+ public:
+  class Attachment : public base::RefCounted<Attachment> {
+   public:
+    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 SetCleared(
+        RenderbufferManager* renderbuffer_manager,
+        TextureManager* texture_manager,
+        bool cleared) = 0;
+    virtual bool IsTexture(Texture* texture) const = 0;
+    virtual bool IsRenderbuffer(
+        Renderbuffer* renderbuffer) const = 0;
+    virtual bool CanRenderTo() const = 0;
+    virtual void DetachFromFramebuffer() const = 0;
+    virtual bool ValidForAttachmentType(GLenum attachment_type) = 0;
+    virtual void AddToSignature(
+        TextureManager* texture_manager, std::string* signature) const = 0;
+
+   protected:
+    friend class base::RefCounted<Attachment>;
+    virtual ~Attachment() {}
+  };
+
+  Framebuffer(FramebufferManager* manager, GLuint service_id);
+
+  GLuint service_id() const {
+    return service_id_;
+  }
+
+  bool HasUnclearedAttachment(GLenum attachment) const;
+
+  void MarkAttachmentAsCleared(
+    RenderbufferManager* renderbuffer_manager,
+    TextureManager* texture_manager,
+    GLenum attachment,
+    bool cleared);
+
+  // Attaches a renderbuffer to a particlar attachment.
+  // Pass null to detach.
+  void AttachRenderbuffer(
+      GLenum attachment, Renderbuffer* renderbuffer);
+
+  // Attaches a texture to a particlar attachment. Pass null to detach.
+  void AttachTexture(
+      GLenum attachment, Texture* texture, GLenum target,
+      GLint level);
+
+  // Unbinds the given renderbuffer if it is bound.
+  void UnbindRenderbuffer(
+      GLenum target, Renderbuffer* renderbuffer);
+
+  // Unbinds the given texture if it is bound.
+  void UnbindTexture(
+      GLenum target, Texture* texture);
+
+  const Attachment* GetAttachment(GLenum attachment) const;
+
+  bool IsDeleted() const {
+    return deleted_;
+  }
+
+  void MarkAsValid() {
+    has_been_bound_ = true;
+  }
+
+  bool IsValid() const {
+    return has_been_bound_ && !IsDeleted();
+  }
+
+  bool HasDepthAttachment() const;
+  bool HasStencilAttachment() const;
+  GLenum GetColorAttachmentFormat() const;
+
+  // Verify all the rules in OpenGL ES 2.0.25 4.4.5 are followed.
+  // Returns GL_FRAMEBUFFER_COMPLETE if there are no reasons we know we can't
+  // use this combination of attachments. Otherwise returns the value
+  // that glCheckFramebufferStatus should return for this set of attachments.
+  // Note that receiving GL_FRAMEBUFFER_COMPLETE from this function does
+  // not mean the real OpenGL will consider it framebuffer complete. It just
+  // means it passed our tests.
+  GLenum IsPossiblyComplete() const;
+
+  // Implements optimized glGetFramebufferStatus.
+  GLenum GetStatus(TextureManager* texture_manager, GLenum target) const;
+
+  // Check all attachments are cleared
+  bool IsCleared() const;
+
+  static void ClearFramebufferCompleteComboMap();
+
+ private:
+  friend class FramebufferManager;
+  friend class base::RefCounted<Framebuffer>;
+
+  ~Framebuffer();
+
+  void MarkAsDeleted();
+
+  void MarkAttachmentsAsCleared(
+    RenderbufferManager* renderbuffer_manager,
+    TextureManager* texture_manager,
+    bool cleared);
+
+  void MarkAsComplete(unsigned state_id) {
+    framebuffer_complete_state_count_id_ = state_id;
+  }
+
+  unsigned framebuffer_complete_state_count_id() const {
+    return framebuffer_complete_state_count_id_;
+  }
+
+  // The managers that owns this.
+  FramebufferManager* manager_;
+
+  bool deleted_;
+
+  // Service side framebuffer id.
+  GLuint service_id_;
+
+  // Whether this framebuffer has ever been bound.
+  bool has_been_bound_;
+
+  // state count when this framebuffer was last checked for completeness.
+  unsigned framebuffer_complete_state_count_id_;
+
+  // A map of attachments.
+  typedef base::hash_map<GLenum, scoped_refptr<Attachment> > AttachmentMap;
+  AttachmentMap attachments_;
+
+  // A map of successful frame buffer combos. If it's in the map
+  // it should be FRAMEBUFFER_COMPLETE.
+  typedef base::hash_map<std::string, bool> FramebufferComboCompleteMap;
+  static FramebufferComboCompleteMap* framebuffer_combo_complete_map_;
+
+  DISALLOW_COPY_AND_ASSIGN(Framebuffer);
+};
+
 // This class keeps track of the frambebuffers and their attached renderbuffers
 // so we can correctly clear them.
 class GPU_EXPORT FramebufferManager {
  public:
-  // Info about Framebuffers currently in the system.
-  class GPU_EXPORT FramebufferInfo : public base::RefCounted<FramebufferInfo> {
-   public:
-    typedef scoped_refptr<FramebufferInfo> Ref;
-
-    class Attachment : public base::RefCounted<Attachment> {
-     public:
-      typedef scoped_refptr<Attachment> Ref;
-
-      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 SetCleared(
-          RenderbufferManager* renderbuffer_manager,
-          TextureManager* texture_manager,
-          bool cleared) = 0;
-      virtual bool IsTexture(TextureManager::TextureInfo* texture) const = 0;
-      virtual bool IsRenderbuffer(
-          RenderbufferManager::RenderbufferInfo* renderbuffer) const = 0;
-      virtual bool CanRenderTo() const = 0;
-      virtual void DetachFromFramebuffer() const = 0;
-      virtual bool ValidForAttachmentType(GLenum attachment_type) = 0;
-      virtual void AddToSignature(
-          TextureManager* texture_manager, std::string* signature) const = 0;
-
-     protected:
-      friend class base::RefCounted<Attachment>;
-      virtual ~Attachment() {}
-    };
-
-    FramebufferInfo(FramebufferManager* manager, GLuint service_id);
-
-    GLuint service_id() const {
-      return service_id_;
-    }
-
-    bool HasUnclearedAttachment(GLenum attachment) const;
-
-    void MarkAttachmentAsCleared(
-      RenderbufferManager* renderbuffer_manager,
-      TextureManager* texture_manager,
-      GLenum attachment,
-      bool cleared);
-
-    // Attaches a renderbuffer to a particlar attachment.
-    // Pass null to detach.
-    void AttachRenderbuffer(
-        GLenum attachment, RenderbufferManager::RenderbufferInfo* renderbuffer);
-
-    // Attaches a texture to a particlar attachment. Pass null to detach.
-    void AttachTexture(
-        GLenum attachment, TextureManager::TextureInfo* texture, GLenum target,
-        GLint level);
-
-    // Unbinds the given renderbuffer if it is bound.
-    void UnbindRenderbuffer(
-        GLenum target, RenderbufferManager::RenderbufferInfo* renderbuffer);
-
-    // Unbinds the given texture if it is bound.
-    void UnbindTexture(
-        GLenum target, TextureManager::TextureInfo* texture);
-
-    const Attachment* GetAttachment(GLenum attachment) const;
-
-    bool IsDeleted() const {
-      return deleted_;
-    }
-
-    void MarkAsValid() {
-      has_been_bound_ = true;
-    }
-
-    bool IsValid() const {
-      return has_been_bound_ && !IsDeleted();
-    }
-
-    bool HasDepthAttachment() const;
-    bool HasStencilAttachment() const;
-    GLenum GetColorAttachmentFormat() const;
-
-    // Verify all the rules in OpenGL ES 2.0.25 4.4.5 are followed.
-    // Returns GL_FRAMEBUFFER_COMPLETE if there are no reasons we know we can't
-    // use this combination of attachments. Otherwise returns the value
-    // that glCheckFramebufferStatus should return for this set of attachments.
-    // Note that receiving GL_FRAMEBUFFER_COMPLETE from this function does
-    // not mean the real OpenGL will consider it framebuffer complete. It just
-    // means it passed our tests.
-    GLenum IsPossiblyComplete() const;
-
-    // Implements optimized glGetFramebufferStatus.
-    GLenum GetStatus(TextureManager* texture_manager, GLenum target) const;
-
-    // Check all attachments are cleared
-    bool IsCleared() const;
-
-    static void ClearFramebufferCompleteComboMap();
-
-   private:
-    friend class FramebufferManager;
-    friend class base::RefCounted<FramebufferInfo>;
-
-    ~FramebufferInfo();
-
-    void MarkAsDeleted();
-
-    void MarkAttachmentsAsCleared(
-      RenderbufferManager* renderbuffer_manager,
-      TextureManager* texture_manager,
-      bool cleared);
-
-    void MarkAsComplete(unsigned state_id) {
-      framebuffer_complete_state_count_id_ = state_id;
-    }
-
-    unsigned framebuffer_complete_state_count_id() const {
-      return framebuffer_complete_state_count_id_;
-    }
-
-    // The managers that owns this.
-    FramebufferManager* manager_;
-
-    bool deleted_;
-
-    // Service side framebuffer id.
-    GLuint service_id_;
-
-    // Whether this framebuffer has ever been bound.
-    bool has_been_bound_;
-
-    // state count when this framebuffer was last checked for completeness.
-    unsigned framebuffer_complete_state_count_id_;
-
-    // A map of attachments.
-    typedef base::hash_map<GLenum, Attachment::Ref> AttachmentMap;
-    AttachmentMap attachments_;
-
-    // A map of successful frame buffer combos. If it's in the map
-    // it should be FRAMEBUFFER_COMPLETE.
-    typedef base::hash_map<std::string, bool> FramebufferComboCompleteMap;
-    static FramebufferComboCompleteMap* framebuffer_combo_complete_map_;
-
-    DISALLOW_COPY_AND_ASSIGN(FramebufferInfo);
-  };
-
   FramebufferManager();
   ~FramebufferManager();
 
   // Must call before destruction.
   void Destroy(bool have_context);
 
-  // Creates a FramebufferInfo for the given framebuffer.
-  void CreateFramebufferInfo(GLuint client_id, GLuint service_id);
+  // Creates a Framebuffer for the given framebuffer.
+  void CreateFramebuffer(GLuint client_id, GLuint service_id);
 
   // Gets the framebuffer info for the given framebuffer.
-  FramebufferInfo* GetFramebufferInfo(GLuint client_id);
+  Framebuffer* GetFramebuffer(GLuint client_id);
 
   // Removes a framebuffer info for the given framebuffer.
-  void RemoveFramebufferInfo(GLuint client_id);
+  void RemoveFramebuffer(GLuint client_id);
 
   // Gets a client id for a given service id.
   bool GetClientId(GLuint service_id, GLuint* client_id) const;
 
   void MarkAttachmentsAsCleared(
-    FramebufferInfo* framebuffer,
+    Framebuffer* framebuffer,
     RenderbufferManager* renderbuffer_manager,
     TextureManager* texture_manager);
 
-  void MarkAsComplete(FramebufferInfo* framebuffer);
+  void MarkAsComplete(Framebuffer* framebuffer);
 
-  bool IsComplete(FramebufferInfo* framebuffer);
+  bool IsComplete(Framebuffer* framebuffer);
 
   void IncFramebufferStateChangeCount() {
     // make sure this is never 0.
     framebuffer_state_change_count_ =
         (framebuffer_state_change_count_ + 1) | 0x80000000U;
   }
 
  private:
-  void StartTracking(FramebufferInfo* info);
-  void StopTracking(FramebufferInfo* info);
+  friend class Framebuffer;
+
+  void StartTracking(Framebuffer* info);
+  void StopTracking(Framebuffer* info);
 
   // Info for each framebuffer in the system.
-  typedef base::hash_map<GLuint, FramebufferInfo::Ref> FramebufferInfoMap;
+  typedef base::hash_map<GLuint, scoped_refptr<Framebuffer> >
+      FramebufferInfoMap;
   FramebufferInfoMap framebuffer_infos_;
 
   // Incremented anytime anything changes that might effect framebuffer
   // state.
   unsigned framebuffer_state_change_count_;
 
-  // Counts the number of FramebufferInfo allocated with 'this' as its manager.
-  // Allows to check no FramebufferInfo will outlive this.
+  // Counts the number of Framebuffer allocated with 'this' as its manager.
+  // Allows to check no Framebuffer will outlive this.
   unsigned int framebuffer_info_count_;
 
   bool have_context_;
 
   DISALLOW_COPY_AND_ASSIGN(FramebufferManager);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_FRAMEBUFFER_MANAGER_H_