Modify Copy{Sub}TextureCHROMIUM entry point to add level argument

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 <limits.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <stdio.h>
@@ skipping 934 matching lines @@
       GLsizei height);
 
   // Wrapper for glCopyBufferSubData.
   void DoCopyBufferSubData(GLenum readtarget,
                            GLenum writetarget,
                            GLintptr readoffset,
                            GLintptr writeoffset,
                            GLsizeiptr size);
 
   void DoCopyTextureCHROMIUM(GLuint source_id,
+                             GLint source_level,
                              GLuint dest_id,
+                             GLint dest_level,
                              GLenum internal_format,
                              GLenum dest_type,
                              GLboolean unpack_flip_y,
                              GLboolean unpack_premultiply_alpha,
                              GLboolean unpack_unmultiply_alpha);
 
   void DoCopySubTextureCHROMIUM(GLuint source_id,
+                                GLint source_level,
                                 GLuint dest_id,
+                                GLint dest_level,
                                 GLint xoffset,
                                 GLint yoffset,
                                 GLint x,
                                 GLint y,
                                 GLsizei width,
                                 GLsizei height,
                                 GLboolean unpack_flip_y,
                                 GLboolean unpack_premultiply_alpha,
                                 GLboolean unpack_unmultiply_alpha);
 
@@ skipping 15366 matching lines @@
     LOCAL_SET_GL_ERROR(GL_INVALID_OPERATION, function_name,
                        "invalid internal format");
     return false;
   }
 
   return true;
 }
 
 void GLES2DecoderImpl::DoCopyTextureCHROMIUM(
     GLuint source_id,
+    GLint source_level,
     GLuint dest_id,
+    GLint dest_level,
     GLenum internal_format,
     GLenum dest_type,
     GLboolean unpack_flip_y,
     GLboolean unpack_premultiply_alpha,
     GLboolean unpack_unmultiply_alpha) {
   TRACE_EVENT0("gpu", "GLES2DecoderImpl::DoCopyTextureCHROMIUM");
   static const char kFunctionName[] = "glCopyTextureCHROMIUM";
 
+  // TODO(qiankun.miao@intel.com): Remove this after level > 0 support is
+  // implemented. See: https://crbug.com/612542.
+  DCHECK(source_level == 0);
+  DCHECK(dest_level == 0);
+
   TextureRef* source_texture_ref = GetTexture(source_id);
   TextureRef* dest_texture_ref = GetTexture(dest_id);
 
   if (!ValidateCopyTextureCHROMIUMTextures(kFunctionName, source_texture_ref,
                                            dest_texture_ref)) {
     return;
   }
 
   Texture* source_texture = source_texture_ref->texture();
   Texture* dest_texture = dest_texture_ref->texture();
@@ skipping 146 matching lines @@
   copy_texture_CHROMIUM_->DoCopyTexture(
       this, source_target, source_texture->service_id(), source_internal_format,
       dest_target, dest_texture->service_id(), internal_format, source_width,
       source_height, unpack_flip_y == GL_TRUE,
       unpack_premultiply_alpha == GL_TRUE, unpack_unmultiply_alpha == GL_TRUE,
       method);
 }
 
 void GLES2DecoderImpl::DoCopySubTextureCHROMIUM(
     GLuint source_id,
+    GLint source_level,
     GLuint dest_id,
+    GLint dest_level,
     GLint xoffset,
     GLint yoffset,
     GLint x,
     GLint y,
     GLsizei width,
     GLsizei height,
     GLboolean unpack_flip_y,
     GLboolean unpack_premultiply_alpha,
     GLboolean unpack_unmultiply_alpha) {
   TRACE_EVENT0("gpu", "GLES2DecoderImpl::DoCopySubTextureCHROMIUM");
 
+  // TODO(qiankun.miao@intel.com): Remove this after level > 0 support is
+  // implemented. See: https://crbug.com/612542.
+  DCHECK(source_level == 0);
+  DCHECK(dest_level == 0);
+
   static const char kFunctionName[] = "glCopySubTextureCHROMIUM";
   TextureRef* source_texture_ref = GetTexture(source_id);
   TextureRef* dest_texture_ref = GetTexture(dest_id);
 
   if (!ValidateCopyTextureCHROMIUMTextures(kFunctionName, source_texture_ref,
                                            dest_texture_ref)) {
     return;
   }
 
   Texture* source_texture = source_texture_ref->texture();
@@ skipping 2586 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 "base/macros.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu