Add glTransformFeedbackVaryings to GPU command buffer.

gpu/command_buffer/service/gles2_cmd_decoder.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/gles2_cmd_decoder.h"
 
 #include <stdio.h>
 
 #include <algorithm>
 #include <list>
@@ skipping 1156 matching lines @@
     const std::string& name_str);
 
   error::Error GetUniformLocationHelper(
     GLuint client_id, uint32 location_shm_id, uint32 location_shm_offset,
     const std::string& name_str);
 
   // Wrapper for glShaderSource.
   void DoShaderSource(
       GLuint client_id, GLsizei count, const char** data, const GLint* length);
 
+  // Wrapper for glShaderSource.

[Ken Russell (switch to Gerrit), 2015/01/24 03:15:36]

Comment needs to be updated.

[Zhenyao Mo, 2015/01/26 23:24:53]

Done.

+  void DoTransformFeedbackVaryings(
+      GLuint client_program_id, GLsizei count, const char* const* varyings,
+      GLenum buffer_mode);
+
   // Clear any textures used by the current program.
   bool ClearUnclearedTextures();
 
   // Clears any uncleared attachments attached to the given frame buffer.
   // Returns false if there was a generated GL error.
   void ClearUnclearedAttachments(GLenum target, Framebuffer* framebuffer);
 
   // overridden from GLES2Decoder
   bool ClearLevel(unsigned service_id,
                   unsigned bind_target,
@@ skipping 5859 matching lines @@
   }
   Shader* shader = GetShaderInfoNotProgram(client_id, "glShaderSource");
   if (!shader) {
     return;
   }
   // Note: We don't actually call glShaderSource here. We wait until
   // the call to glCompileShader.
   shader->set_source(str);
 }
 
+void GLES2DecoderImpl::DoTransformFeedbackVaryings(
+    GLuint client_program_id, GLsizei count, const char* const* varyings,
+    GLenum buffer_mode) {
+  Program* program = GetProgramInfoNotShader(
+      client_program_id, "glTransformFeedbackVaryings");
+  if (!program) {
+    return;
+  }
+  glTransformFeedbackVaryings(
+      program->service_id(), count, varyings, buffer_mode);
+}
+
 void GLES2DecoderImpl::DoCompileShader(GLuint client_id) {
   TRACE_EVENT0("gpu", "GLES2DecoderImpl::DoCompileShader");
   Shader* shader = GetShaderInfoNotProgram(client_id, "glCompileShader");
   if (!shader) {
     return;
   }
   ShaderTranslator* translator = NULL;
   if (use_shader_translator_) {
     translator = shader->shader_type() == GL_VERTEX_SHADER ?
         vertex_translator_.get() : fragment_translator_.get();
@@ skipping 4540 matching lines @@
   }
 }
 
 // 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/service/gles2_cmd_decoder_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu