command_buffer: Implement CHROMIUM_framebuffer_mixed_samples extension

gpu/command_buffer/service/gles2_cmd_validation_implementation_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 153 matching lines @@
     GL_COMPRESSED_RG11_EAC,
     GL_COMPRESSED_SIGNED_RG11_EAC,
     GL_COMPRESSED_RGB8_ETC2,
     GL_COMPRESSED_SRGB8_ETC2,
     GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2,
     GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2,
     GL_COMPRESSED_RGBA8_ETC2_EAC,
     GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC,
 };
 
+static const GLenum valid_coverage_modulation_components_table[] = {
+    GL_RGB, GL_RGBA, GL_ALPHA, GL_NONE,
+};
+
 bool Validators::DrawModeValidator::IsValid(const GLenum value) const {
   switch (value) {
     case GL_POINTS:
     case GL_LINE_STRIP:
     case GL_LINE_LOOP:
     case GL_LINES:
     case GL_TRIANGLE_STRIP:
     case GL_TRIANGLE_FAN:
     case GL_TRIANGLES:
       return true;
@@ skipping 1121 matching lines @@
 static const GLenum valid_vertex_pointer_table[] = {
     GL_VERTEX_ATTRIB_ARRAY_POINTER,
 };
 
 Validators::Validators()
     : attachment(valid_attachment_table, arraysize(valid_attachment_table)),
       bufferfi(valid_bufferfi_table, arraysize(valid_bufferfi_table)),
       bufferuiv(valid_bufferuiv_table, arraysize(valid_bufferuiv_table)),
       capability(valid_capability_table, arraysize(valid_capability_table)),
       compressed_texture_format(),
+      coverage_modulation_components(
+          valid_coverage_modulation_components_table,
+          arraysize(valid_coverage_modulation_components_table)),
       dst_blend_factor(valid_dst_blend_factor_table,
                        arraysize(valid_dst_blend_factor_table)),
       equation(valid_equation_table, arraysize(valid_equation_table)),
       frame_buffer_parameter(valid_frame_buffer_parameter_table,
                              arraysize(valid_frame_buffer_parameter_table)),
       frame_buffer_target(valid_frame_buffer_target_table,
                           arraysize(valid_frame_buffer_target_table)),
       g_l_state(valid_g_l_state_table, arraysize(valid_g_l_state_table)),
       get_tex_param_target(valid_get_tex_param_target_table,
                            arraysize(valid_get_tex_param_target_table)),
@@ skipping 105 matching lines @@
       arraysize(valid_texture_internal_format_storage_table_es3));
   texture_parameter.AddValues(valid_texture_parameter_table_es3,
                               arraysize(valid_texture_parameter_table_es3));
   vertex_attrib_type.AddValues(valid_vertex_attrib_type_table_es3,
                                arraysize(valid_vertex_attrib_type_table_es3));
   vertex_attribute.AddValues(valid_vertex_attribute_table_es3,
                              arraysize(valid_vertex_attribute_table_es3));
 }
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_VALIDATION_IMPLEMENTATION_AUTOGEN_H_