Make invalidateFramebuffer no-op for DEPTH_STENCIL attachment

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 <stddef.h>
 #include <stdint.h>
 
@@ skipping 23 matching lines @@
 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 GLenum texture_type() const = 0;
     virtual GLsizei samples() const = 0;
     virtual GLuint object_name() const = 0;
+    virtual GLenum attachment() const = 0;
     virtual bool cleared() const = 0;
     virtual void SetCleared(
         RenderbufferManager* renderbuffer_manager,
         TextureManager* texture_manager,
         bool cleared) = 0;
+    virtual bool IsDepthStencil() const = 0;
     virtual bool IsPartiallyCleared() const = 0;
     virtual bool IsTextureAttachment() const = 0;
     virtual bool IsRenderbufferAttachment() const = 0;
     virtual bool IsTexture(TextureRef* texture) const = 0;
     virtual bool IsRenderbuffer(
         Renderbuffer* renderbuffer) const = 0;
     virtual bool Is3D() const = 0;
 
     // If it's a 3D texture attachment, return true if
     // FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER is smaller than the number of
@@ skipping 18 matching lines @@
 
   Framebuffer(FramebufferManager* manager, GLuint service_id);
 
   GLuint service_id() const {
     return service_id_;
   }
 
   bool HasUnclearedAttachment(GLenum attachment) const;
   bool HasUnclearedColorAttachments() const;
 
+  static bool IsDepthStencilFormat(GLenum internal_format) {
+    return internal_format == GL_DEPTH24_STENCIL8 ||
+           internal_format == GL_DEPTH32F_STENCIL8;
+  }
+
   bool HasSRGBAttachments() const;
 
   void ClearUnclearedIntOr3DTexturesOrPartiallyClearedTextures(
       GLES2Decoder* decoder,
       TextureManager* texture_manager);
 
   bool HasUnclearedIntRenderbufferAttachments() const;
 
   void ClearUnclearedIntRenderbufferAttachments(
     RenderbufferManager* renderbuffer_manager);
@@ skipping 236 matching lines @@
 
   scoped_refptr<FramebufferCompletenessCache> framebuffer_combo_complete_cache_;
 
   DISALLOW_COPY_AND_ASSIGN(FramebufferManager);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_FRAMEBUFFER_MANAGER_H_