Clear render buffers

gpu/command_buffer/service/framebuffer_manager.cc

 // Copyright (c) 2010 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 "gpu/command_buffer/common/gles2_cmd_utils.h"
 
 namespace gpu {
 namespace gles2 {
@@ skipping 19 matching lines @@
 void FramebufferManager::CreateFramebufferInfo(
     GLuint client_id, GLuint service_id) {
   std::pair<FramebufferInfoMap::iterator, bool> result =
       framebuffer_infos_.insert(
           std::make_pair(
               client_id,
               FramebufferInfo::Ref(new FramebufferInfo(service_id))));
   DCHECK(result.second);
 }
 
+bool FramebufferManager::FramebufferInfo::HasUnclearedAttachment(
+    GLenum attachment) const {
+  AttachmentToRenderbufferMap::const_iterator it =
+      renderbuffers_.find(attachment);
+  if (it != renderbuffers_.end()) {
+    RenderbufferManager::RenderbufferInfo* info = it->second;
+    return !info->cleared();
+  }
+  return false;
+}
+
+void FramebufferManager::FramebufferInfo::MarkAttachedRenderbuffersAsCleared() {
+  for (AttachmentToRenderbufferMap::iterator it = renderbuffers_.begin();
+       it != renderbuffers_.end(); ++it) {
+    RenderbufferManager::RenderbufferInfo* info = it->second;
+    info->set_cleared();
+  }
+}
+
 FramebufferManager::FramebufferInfo* FramebufferManager::GetFramebufferInfo(
     GLuint client_id) {
   FramebufferInfoMap::iterator it = framebuffer_infos_.find(client_id);
   return it != framebuffer_infos_.end() ? it->second : NULL;
 }
 
 void FramebufferManager::RemoveFramebufferInfo(GLuint client_id) {
   FramebufferInfoMap::iterator it = framebuffer_infos_.find(client_id);
   if (it != framebuffer_infos_.end()) {
     it->second->MarkAsDeleted();
     framebuffer_infos_.erase(it);
   }
 }
 
 void FramebufferManager::FramebufferInfo::AttachRenderbuffer(
     GLenum attachment, RenderbufferManager::RenderbufferInfo* renderbuffer) {
   DCHECK(attachment == GL_COLOR_ATTACHMENT0 ||
          attachment == GL_DEPTH_ATTACHMENT ||
-         attachment == GL_STENCIL_ATTACHMENT);
+         attachment == GL_STENCIL_ATTACHMENT ||
+         attachment == GL_DEPTH_STENCIL_ATTACHMENT);
   if (renderbuffer) {
     renderbuffers_[attachment] =
         RenderbufferManager::RenderbufferInfo::Ref(renderbuffer);
   } else {
     renderbuffers_.erase(attachment);
   }
 }
 
 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 (FramebufferInfoMap::const_iterator it = framebuffer_infos_.begin();
        it != framebuffer_infos_.end(); ++it) {
     if (it->second->service_id() == service_id) {
       *client_id = it->first;
       return true;
     }
   }
   return false;
 }
 
 }  // namespace gles2
 }  // namespace gpu