Add initial support for NV_path_rendering extension to gpu command buffer

gpu/command_buffer/service/context_state_impl_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 35 matching lines @@
   color_mask_alpha = true;
   cull_mode = GL_BACK;
   depth_func = GL_LESS;
   depth_mask = true;
   z_near = 0.0f;
   z_far = 1.0f;
   front_face = GL_CCW;
   hint_generate_mipmap = GL_DONT_CARE;
   hint_fragment_shader_derivative = GL_DONT_CARE;
   line_width = 1.0f;
+  modelview_matrix[0] = 0.0f;
+  modelview_matrix[1] = 0.0f;
+  modelview_matrix[2] = 0.0f;
+  modelview_matrix[3] = 0.0f;
+  modelview_matrix[4] = 0.0f;
+  modelview_matrix[5] = 0.0f;
+  modelview_matrix[6] = 0.0f;
+  modelview_matrix[7] = 0.0f;
+  modelview_matrix[8] = 0.0f;
+  modelview_matrix[9] = 0.0f;
+  modelview_matrix[10] = 0.0f;
+  modelview_matrix[11] = 0.0f;
+  modelview_matrix[12] = 0.0f;
+  modelview_matrix[13] = 0.0f;
+  modelview_matrix[14] = 0.0f;
+  modelview_matrix[15] = 0.0f;
+  projection_matrix[0] = 0.0f;
+  projection_matrix[1] = 0.0f;
+  projection_matrix[2] = 0.0f;
+  projection_matrix[3] = 0.0f;
+  projection_matrix[4] = 0.0f;
+  projection_matrix[5] = 0.0f;
+  projection_matrix[6] = 0.0f;
+  projection_matrix[7] = 0.0f;
+  projection_matrix[8] = 0.0f;
+  projection_matrix[9] = 0.0f;
+  projection_matrix[10] = 0.0f;
+  projection_matrix[11] = 0.0f;
+  projection_matrix[12] = 0.0f;
+  projection_matrix[13] = 0.0f;
+  projection_matrix[14] = 0.0f;
+  projection_matrix[15] = 0.0f;
   pack_alignment = 4;
   unpack_alignment = 4;
   polygon_offset_factor = 0.0f;
   polygon_offset_units = 0.0f;
   sample_coverage_value = 1.0f;
   sample_coverage_invert = false;
   scissor_x = 0;
   scissor_y = 0;
   scissor_width = 1;
   scissor_height = 1;
@@ skipping 106 matching lines @@
       glFrontFace(front_face);
     if (prev_state->hint_generate_mipmap != hint_generate_mipmap)
       glHint(GL_GENERATE_MIPMAP_HINT, hint_generate_mipmap);
     if (feature_info_->feature_flags().oes_standard_derivatives)
       if (prev_state->hint_fragment_shader_derivative !=
           hint_fragment_shader_derivative)
         glHint(GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES,
                hint_fragment_shader_derivative);
     if ((line_width != prev_state->line_width))
       glLineWidth(line_width);
+    if (feature_info_->feature_flags().chromium_path_rendering)
+      if (memcmp(prev_state->modelview_matrix,
+                 modelview_matrix,
+                 sizeof(GLfloat) * 16))
+        glMatrixLoadfEXT(GL_MODELVIEW_CHROMIUM, modelview_matrix);
+    if (feature_info_->feature_flags().chromium_path_rendering)
+      if (memcmp(prev_state->projection_matrix,
+                 projection_matrix,
+                 sizeof(GLfloat) * 16))
+        glMatrixLoadfEXT(GL_PROJECTION_CHROMIUM, projection_matrix);
     if (prev_state->pack_alignment != pack_alignment)
       glPixelStorei(GL_PACK_ALIGNMENT, pack_alignment);
     if (prev_state->unpack_alignment != unpack_alignment)
       glPixelStorei(GL_UNPACK_ALIGNMENT, unpack_alignment);
     if ((polygon_offset_factor != prev_state->polygon_offset_factor) ||
         (polygon_offset_units != prev_state->polygon_offset_units))
       glPolygonOffset(polygon_offset_factor, polygon_offset_units);
     if ((sample_coverage_value != prev_state->sample_coverage_value) ||
         (sample_coverage_invert != prev_state->sample_coverage_invert))
       glSampleCoverage(sample_coverage_value, sample_coverage_invert);
@@ skipping 54 matching lines @@
     glCullFace(cull_mode);
     glDepthFunc(depth_func);
     glDepthMask(depth_mask);
     glDepthRange(z_near, z_far);
     glFrontFace(front_face);
     glHint(GL_GENERATE_MIPMAP_HINT, hint_generate_mipmap);
     if (feature_info_->feature_flags().oes_standard_derivatives)
       glHint(GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES,
              hint_fragment_shader_derivative);
     glLineWidth(line_width);
+    if (feature_info_->feature_flags().chromium_path_rendering)
+      glMatrixLoadfEXT(GL_MODELVIEW_CHROMIUM, modelview_matrix);
+    if (feature_info_->feature_flags().chromium_path_rendering)
+      glMatrixLoadfEXT(GL_PROJECTION_CHROMIUM, projection_matrix);
     glPixelStorei(GL_PACK_ALIGNMENT, pack_alignment);
     glPixelStorei(GL_UNPACK_ALIGNMENT, unpack_alignment);
     glPolygonOffset(polygon_offset_factor, polygon_offset_units);
     glSampleCoverage(sample_coverage_value, sample_coverage_invert);
     glScissor(scissor_x, scissor_y, scissor_width, scissor_height);
     glStencilFuncSeparate(
         GL_FRONT, stencil_front_func, stencil_front_ref, stencil_front_mask);
     glStencilFuncSeparate(
         GL_BACK, stencil_back_func, stencil_back_ref, stencil_back_mask);
     glStencilMaskSeparate(GL_FRONT, stencil_front_writemask);
@@ skipping 156 matching lines @@
       if (params) {
         params[0] = static_cast<GLint>(hint_fragment_shader_derivative);
       }
       return true;
     case GL_LINE_WIDTH:
       *num_written = 1;
       if (params) {
         params[0] = static_cast<GLint>(line_width);
       }
       return true;
+    case GL_MODELVIEW_MATRIX_CHROMIUM:
+      *num_written = 16;
+      if (params) {
+        for (size_t i = 0; i < 16; ++i) {
+          params[i] = static_cast<GLint>(modelview_matrix[i]);
+        }
+      }
+      return true;
+    case GL_PROJECTION_MATRIX_CHROMIUM:
+      *num_written = 16;
+      if (params) {
+        for (size_t i = 0; i < 16; ++i) {
+          params[i] = static_cast<GLint>(projection_matrix[i]);
+        }
+      }
+      return true;
     case GL_PACK_ALIGNMENT:
       *num_written = 1;
       if (params) {
         params[0] = static_cast<GLint>(pack_alignment);
       }
       return true;
     case GL_UNPACK_ALIGNMENT:
       *num_written = 1;
       if (params) {
         params[0] = static_cast<GLint>(unpack_alignment);
@@ skipping 305 matching lines @@
       if (params) {
         params[0] = static_cast<GLfloat>(hint_fragment_shader_derivative);
       }
       return true;
     case GL_LINE_WIDTH:
       *num_written = 1;
       if (params) {
         params[0] = static_cast<GLfloat>(line_width);
       }
       return true;
+    case GL_MODELVIEW_MATRIX_CHROMIUM:
+      *num_written = 16;
+      if (params) {
+        memcpy(params, modelview_matrix, sizeof(GLfloat) * 16);
+      }
+      return true;
+    case GL_PROJECTION_MATRIX_CHROMIUM:
+      *num_written = 16;
+      if (params) {
+        memcpy(params, projection_matrix, sizeof(GLfloat) * 16);
+      }
+      return true;
     case GL_PACK_ALIGNMENT:
       *num_written = 1;
       if (params) {
         params[0] = static_cast<GLfloat>(pack_alignment);
       }
       return true;
     case GL_UNPACK_ALIGNMENT:
       *num_written = 1;
       if (params) {
         params[0] = static_cast<GLfloat>(unpack_alignment);
@@ skipping 177 matching lines @@
       *num_written = 1;
       if (params) {
         params[0] = static_cast<GLfloat>(enable_flags.stencil_test);
       }
       return true;
     default:
       return false;
   }
 }
 #endif  // GPU_COMMAND_BUFFER_SERVICE_CONTEXT_STATE_IMPL_AUTOGEN_H_