Add initial support for NV_path_rendering extension to gpu command buffer

gpu/command_buffer/service/gles2_cmd_decoder_autogen.h

 // Copyright 2014 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.
 
 // This file is auto-generated from
 // gpu/command_buffer/build_gles2_cmd_buffer.py
 // It's formatted by clang-format using chromium coding style:
 //    clang-format -i -style=chromium filename
 // DO NOT EDIT!
 
@@ skipping 3415 matching lines @@
     LOCAL_SET_GL_ERROR(GL_INVALID_VALUE, "glDrawBuffersEXT", "count < 0");
     return error::kNoError;
   }
   if (bufs == NULL) {
     return error::kOutOfBounds;
   }
   DoDrawBuffersEXT(count, bufs);
   return error::kNoError;
 }
 
+error::Error GLES2DecoderImpl::HandleMatrixMode(
+    uint32 immediate_data_size,
+    const gles2::cmds::MatrixMode& c) {
+  GLenum mode = static_cast<GLenum>(c.mode);
+  if (!validators_->matrix_mode.IsValid(mode)) {
+    LOCAL_SET_GL_ERROR_INVALID_ENUM("glMatrixMode", mode, "mode");
+    return error::kNoError;
+  }
+  if (state_.matrix_mode != mode) {
+    state_.matrix_mode = mode;
+    glMatrixMode(mode);
+  }
+  return error::kNoError;
+}
+
+error::Error GLES2DecoderImpl::HandleLoadMatrixf(
+    uint32 immediate_data_size,
+    const gles2::cmds::LoadMatrixf& c) {
+  uint32 data_size;
+  if (!ComputeDataSize(1, sizeof(GLfloat), 16, &data_size)) {
+    return error::kOutOfBounds;
+  }
+  const GLfloat* m =
+      GetSharedMemoryAs<const GLfloat*>(c.m_shm_id, c.m_shm_offset, data_size);
+  if (m == NULL) {
+    return error::kOutOfBounds;
+  }
+  glLoadMatrixf(m);
+  return error::kNoError;
+}
+
+error::Error GLES2DecoderImpl::HandleLoadMatrixfImmediate(
+    uint32 immediate_data_size,
+    const gles2::cmds::LoadMatrixfImmediate& c) {
+  uint32 data_size;
+  if (!ComputeDataSize(1, sizeof(GLfloat), 16, &data_size)) {
+    return error::kOutOfBounds;
+  }
+  if (data_size > immediate_data_size) {
+    return error::kOutOfBounds;
+  }
+  const GLfloat* m =
+      GetImmediateDataAs<const GLfloat*>(c, data_size, immediate_data_size);
+  if (m == NULL) {
+    return error::kOutOfBounds;
+  }
+  glLoadMatrixf(m);
+  return error::kNoError;
+}
+
+error::Error GLES2DecoderImpl::HandleLoadIdentity(
+    uint32 immediate_data_size,
+    const gles2::cmds::LoadIdentity& c) {
+  glLoadIdentity();
+  return error::kNoError;
+}
+
 bool GLES2DecoderImpl::SetCapabilityState(GLenum cap, bool enabled) {
   switch (cap) {
     case GL_BLEND:
       state_.enable_flags.blend = enabled;
       return true;
     case GL_CULL_FACE:
       state_.enable_flags.cull_face = enabled;
       return true;
     case GL_DEPTH_TEST:
       if (state_.enable_flags.depth_test != enabled) {
@@ skipping 24 matching lines @@
         state_.enable_flags.stencil_test = enabled;
         framebuffer_state_.clear_state_dirty = true;
       }
       return false;
     default:
       NOTREACHED();
       return false;
   }
 }
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_AUTOGEN_H_