gpu: Mailbox emulation with EGLImage

gpu/command_buffer/service/framebuffer_manager.cc

 // 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.
 
 #include "gpu/command_buffer/service/framebuffer_manager.h"
 #include "base/logging.h"
 #include "base/strings/stringprintf.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
 #include "gpu/command_buffer/service/renderbuffer_manager.h"
 #include "gpu/command_buffer/service/texture_manager.h"
@@ skipping 101 matching lines @@
   Renderbuffer* renderbuffer() const {
     return renderbuffer_.get();
   }
 
   virtual void AddToSignature(
       TextureManager* texture_manager, std::string* signature) const OVERRIDE {
     DCHECK(signature);
     renderbuffer_->AddToSignature(signature);
   }
 
+  virtual void OnWillRenderTo() const OVERRIDE {}
+  virtual void OnDidRenderTo() const OVERRIDE {}
+
  protected:
   virtual ~RenderbufferAttachment() { }
 
  private:
   scoped_refptr<Renderbuffer> renderbuffer_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderbufferAttachment);
 };
 
 class TextureAttachment
@@ skipping 104 matching lines @@
     return (need & have) != 0;
   }
 
   virtual void AddToSignature(
       TextureManager* texture_manager, std::string* signature) const OVERRIDE {
     DCHECK(signature);
     texture_manager->AddToSignature(
         texture_ref_.get(), target_, level_, signature);
   }
 
+  virtual void OnWillRenderTo() const OVERRIDE {
+    texture_ref_->texture()->OnWillModifyPixels();
+  }
+
+  virtual void OnDidRenderTo() const OVERRIDE {
+    texture_ref_->texture()->OnDidModifyPixels();
+  }
+
  protected:
   virtual ~TextureAttachment() {}
 
  private:
   scoped_refptr<TextureRef> texture_ref_;
   GLenum target_;
   GLint level_;
   GLsizei samples_;
 
   DISALLOW_COPY_AND_ASSIGN(TextureAttachment);
@@ skipping 352 matching lines @@
   if (it != attachments_.end()) {
     return it->second.get();
   }
   return NULL;
 }
 
 void Framebuffer::OnTextureRefDetached(TextureRef* texture) {
   manager_->OnTextureRefDetached(texture);
 }
 
+void Framebuffer::OnWillRenderTo() const {
+  for (AttachmentMap::const_iterator it = attachments_.begin();
+       it != attachments_.end(); ++it) {
+    it->second->OnWillRenderTo();
+  }
+}
+
+void Framebuffer::OnDidRenderTo() const {
+  for (AttachmentMap::const_iterator it = attachments_.begin();
+       it != attachments_.end(); ++it) {
+    it->second->OnDidRenderTo();
+  }
+}
+
 bool FramebufferManager::GetClientId(
     GLuint service_id, GLuint* client_id) const {
   // This doesn't need to be fast. It's only used during slow queries.
   for (FramebufferMap::const_iterator it = framebuffers_.begin();
        it != framebuffers_.end(); ++it) {
     if (it->second->service_id() == service_id) {
       *client_id = it->first;
       return true;
     }
   }
@@ skipping 31 matching lines @@
        ++it) {
     TextureDetachObserver* observer = *it;
     observer->OnTextureRefDetachedFromFramebuffer(texture);
   }
 }
 
 }  // namespace gles2
 }  // namespace gpu