Optimize GLES2DecoderImpl::ApplyDirtyState.

gpu/command_buffer/service/context_state_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!
 
 // It is included by context_state.h
 #ifndef GPU_COMMAND_BUFFER_SERVICE_CONTEXT_STATE_AUTOGEN_H_
 #define GPU_COMMAND_BUFFER_SERVICE_CONTEXT_STATE_AUTOGEN_H_
 
 struct EnableFlags {
   EnableFlags();
   bool blend;
+  bool cached_blend;
   bool cull_face;
+  bool cached_cull_face;
   bool depth_test;
+  bool cached_depth_test;
   bool dither;
+  bool cached_dither;
   bool polygon_offset_fill;
+  bool cached_polygon_offset_fill;
   bool sample_alpha_to_coverage;
+  bool cached_sample_alpha_to_coverage;
   bool sample_coverage;
+  bool cached_sample_coverage;
   bool scissor_test;
+  bool cached_scissor_test;
   bool stencil_test;
+  bool cached_stencil_test;
 };
 
 GLfloat blend_color_red;
 GLfloat blend_color_green;
 GLfloat blend_color_blue;
 GLfloat blend_color_alpha;
 GLenum blend_equation_rgb;
 GLenum blend_equation_alpha;
 GLenum blend_source_rgb;
 GLenum blend_dest_rgb;
 GLenum blend_source_alpha;
 GLenum blend_dest_alpha;
 GLfloat color_clear_red;
 GLfloat color_clear_green;
 GLfloat color_clear_blue;
 GLfloat color_clear_alpha;
 GLclampf depth_clear;
 GLint stencil_clear;
 GLboolean color_mask_red;
+GLboolean cached_color_mask_red;
 GLboolean color_mask_green;
+GLboolean cached_color_mask_green;
 GLboolean color_mask_blue;
+GLboolean cached_color_mask_blue;
 GLboolean color_mask_alpha;
+GLboolean cached_color_mask_alpha;
 GLenum cull_mode;
 GLenum depth_func;
 GLboolean depth_mask;
+GLboolean cached_depth_mask;
 GLclampf z_near;
 GLclampf z_far;
 GLenum front_face;
 GLenum hint_generate_mipmap;
 GLenum hint_fragment_shader_derivative;
 GLfloat line_width;
 GLint pack_alignment;
 GLint unpack_alignment;
 GLfloat polygon_offset_factor;
 GLfloat polygon_offset_units;
 GLclampf sample_coverage_value;
 GLboolean sample_coverage_invert;
 GLint scissor_x;
 GLint scissor_y;
 GLsizei scissor_width;
 GLsizei scissor_height;
 GLenum stencil_front_func;
 GLint stencil_front_ref;
 GLuint stencil_front_mask;
 GLenum stencil_back_func;
 GLint stencil_back_ref;
 GLuint stencil_back_mask;
 GLuint stencil_front_writemask;
+GLuint cached_stencil_front_writemask;
 GLuint stencil_back_writemask;
+GLuint cached_stencil_back_writemask;
 GLenum stencil_front_fail_op;
 GLenum stencil_front_z_fail_op;
 GLenum stencil_front_z_pass_op;
 GLenum stencil_back_fail_op;
 GLenum stencil_back_z_fail_op;
 GLenum stencil_back_z_pass_op;
 GLint viewport_x;
 GLint viewport_y;
 GLsizei viewport_width;
 GLsizei viewport_height;
 
+inline void SetDeviceCapabilityState(GLenum cap, bool enable) {
+  switch (cap) {
+    case GL_BLEND:
+      if (enable_flags.cached_blend == enable && !ignore_cached_state)
+        return;
+      enable_flags.cached_blend = enable;
+      break;
+    case GL_CULL_FACE:
+      if (enable_flags.cached_cull_face == enable && !ignore_cached_state)
+        return;
+      enable_flags.cached_cull_face = enable;
+      break;
+    case GL_DEPTH_TEST:
+      if (enable_flags.cached_depth_test == enable && !ignore_cached_state)
+        return;
+      enable_flags.cached_depth_test = enable;
+      break;
+    case GL_DITHER:
+      if (enable_flags.cached_dither == enable && !ignore_cached_state)
+        return;
+      enable_flags.cached_dither = enable;
+      break;
+    case GL_POLYGON_OFFSET_FILL:
+      if (enable_flags.cached_polygon_offset_fill == enable &&
+          !ignore_cached_state)
+        return;
+      enable_flags.cached_polygon_offset_fill = enable;
+      break;
+    case GL_SAMPLE_ALPHA_TO_COVERAGE:
+      if (enable_flags.cached_sample_alpha_to_coverage == enable &&
+          !ignore_cached_state)
+        return;
+      enable_flags.cached_sample_alpha_to_coverage = enable;
+      break;
+    case GL_SAMPLE_COVERAGE:
+      if (enable_flags.cached_sample_coverage == enable && !ignore_cached_state)
+        return;
+      enable_flags.cached_sample_coverage = enable;
+      break;
+    case GL_SCISSOR_TEST:
+      if (enable_flags.cached_scissor_test == enable && !ignore_cached_state)
+        return;
+      enable_flags.cached_scissor_test = enable;
+      break;
+    case GL_STENCIL_TEST:
+      if (enable_flags.cached_stencil_test == enable && !ignore_cached_state)
+        return;
+      enable_flags.cached_stencil_test = enable;
+      break;
+    default:
+      NOTREACHED();
+      return;
+  }
+  if (enable)
+    glEnable(cap);
+  else
+    glDisable(cap);
+}
 #endif  // GPU_COMMAND_BUFFER_SERVICE_CONTEXT_STATE_AUTOGEN_H_