command_buffer: Implement CHROMIUM_framebuffer_mixed_samples extension

gpu/command_buffer/common/gles2_cmd_format_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 15472 matching lines @@
     offsetof(ProgramPathFragmentInputGenCHROMIUM, components) == 16,
     "offset of ProgramPathFragmentInputGenCHROMIUM components should be 16");
 static_assert(
     offsetof(ProgramPathFragmentInputGenCHROMIUM, coeffs_shm_id) == 20,
     "offset of ProgramPathFragmentInputGenCHROMIUM coeffs_shm_id should be 20");
 static_assert(offsetof(ProgramPathFragmentInputGenCHROMIUM,
                        coeffs_shm_offset) == 24,
               "offset of ProgramPathFragmentInputGenCHROMIUM coeffs_shm_offset "
               "should be 24");
 
+struct CoverageModulationCHROMIUM {
+  typedef CoverageModulationCHROMIUM ValueType;
+  static const CommandId kCmdId = kCoverageModulationCHROMIUM;
+  static const cmd::ArgFlags kArgFlags = cmd::kFixed;
+  static const uint8 cmd_flags = CMD_FLAG_SET_TRACE_LEVEL(3);
+
+  static uint32_t ComputeSize() {
+    return static_cast<uint32_t>(sizeof(ValueType));  // NOLINT
+  }
+
+  void SetHeader() { header.SetCmd<ValueType>(); }
+
+  void Init(GLenum _components) {
+    SetHeader();
+    components = _components;
+  }
+
+  void* Set(void* cmd, GLenum _components) {
+    static_cast<ValueType*>(cmd)->Init(_components);
+    return NextCmdAddress<ValueType>(cmd);
+  }
+
+  gpu::CommandHeader header;
+  uint32_t components;
+};
+
+static_assert(sizeof(CoverageModulationCHROMIUM) == 8,
+              "size of CoverageModulationCHROMIUM should be 8");
+static_assert(offsetof(CoverageModulationCHROMIUM, header) == 0,
+              "offset of CoverageModulationCHROMIUM header should be 0");
+static_assert(offsetof(CoverageModulationCHROMIUM, components) == 4,
+              "offset of CoverageModulationCHROMIUM components should be 4");
+
 struct BlendBarrierKHR {
   typedef BlendBarrierKHR ValueType;
   static const CommandId kCmdId = kBlendBarrierKHR;
   static const cmd::ArgFlags kArgFlags = cmd::kFixed;
   static const uint8 cmd_flags = CMD_FLAG_SET_TRACE_LEVEL(3);
 
   static uint32_t ComputeSize() {
     return static_cast<uint32_t>(sizeof(ValueType));  // NOLINT
   }
 
@@ skipping 196 matching lines @@
 static_assert(offsetof(GetFragDataIndexEXT, program) == 4,
               "offset of GetFragDataIndexEXT program should be 4");
 static_assert(offsetof(GetFragDataIndexEXT, name_bucket_id) == 8,
               "offset of GetFragDataIndexEXT name_bucket_id should be 8");
 static_assert(offsetof(GetFragDataIndexEXT, index_shm_id) == 12,
               "offset of GetFragDataIndexEXT index_shm_id should be 12");
 static_assert(offsetof(GetFragDataIndexEXT, index_shm_offset) == 16,
               "offset of GetFragDataIndexEXT index_shm_offset should be 16");
 
 #endif  // GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_FORMAT_AUTOGEN_H_