Implemented new fence syncs which replaces the old sync points.

gpu/command_buffer/client/gles2_implementation.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.
 
 // A class to emulate GLES2 over command buffers.
 
 #include "gpu/command_buffer/client/gles2_implementation.h"
 
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
@@ skipping 5351 matching lines @@
 
 void GLES2Implementation::RetireSyncPointCHROMIUM(GLuint sync_point) {
   GPU_CLIENT_SINGLE_THREAD_CHECK();
   GPU_CLIENT_LOG("[" << GetLogPrefix() << "] glRetireSyncPointCHROMIUM("
                      << sync_point << ")");
   DCHECK(capabilities_.future_sync_points);
   helper_->CommandBufferHelper::Flush();
   gpu_control_->RetireSyncPoint(sync_point);
 }
 
+GLuint GLES2Implementation::InsertFenceSyncCHROMIUM() {
+  const uint32_t release = helper_->GenerateFenceSyncRelease();
+  helper_->InsertFenceSyncCHROMIUM(release);
+  return release;
+}
+
+void GLES2Implementation::GenSyncTokenCHROMIUM(GLuint fence_sync,
+                                               GLbyte* sync_token) {
+  if (!sync_token) {
+    SetGLError(GL_INVALID_VALUE, "glGenSyncTokenCHROMIUM", "empty sync_token");
+    return;
+  } else if (!helper_->IsFenceSyncRelease(fence_sync)) {
+    SetGLError(GL_INVALID_VALUE, "glGenSyncTokenCHROMIUM",
+               "invalid fence sync");
+    return;
+  } else if (!helper_->IsFenceSyncFlushed(fence_sync)) {
+    SetGLError(GL_INVALID_OPERATION, "glGenSyncTokenCHROMIUM",
+               "fence sync must be flushed before generating sync token");
+    return;
+  }
+
+  int channel_id = 0;
+  uint32_t route_id = 0;
+  helper_->command_buffer()->GetRouteInformation(&channel_id, &route_id);
+
+  SyncToken* sync_token_data = reinterpret_cast<SyncToken*>(sync_token);
+  memset(sync_token_data, 0, sizeof(SyncToken));
+  sync_token_data->channel_client_id = channel_id;
+  sync_token_data->route_id = route_id;
+  sync_token_data->release_count = fence_sync;
+}
+
+void GLES2Implementation::WaitSyncTokenCHROMIUM(const GLbyte* sync_token) {
+  if (!sync_token) {
+    SetGLError(GL_INVALID_VALUE, "glWaitSyncTokenCHROMIUM", "empty sync_token");
+    return;
+  };
+
+  const SyncToken* sync_token_data =
+      reinterpret_cast<const SyncToken*>(sync_token);
+  helper_->WaitSyncTokenCHROMIUM(sync_token_data->channel_client_id,
+                                 sync_token_data->route_id,
+                                 sync_token_data->release_count);
+}
+
 namespace {
 
 bool ValidImageFormat(GLenum internalformat,
                       const Capabilities& capabilities) {
   switch (internalformat) {
     case GL_ATC_RGB_AMD:
     case GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD:
       return capabilities.texture_format_atc;
     case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
       return capabilities.texture_format_dxt1;
@@ skipping 505 matching lines @@
   CheckGLError();
 }
 
 // Include the auto-generated part of this file. We split this because it means
 // we can easily edit the non-auto generated parts right here in this file
 // instead of having to edit some template or the code generator.
 #include "gpu/command_buffer/client/gles2_implementation_impl_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu