automate more GL state handling

gpu/command_buffer/service/context_state.cc

Index: gpu/command_buffer/service/context_state.cc
diff --git a/gpu/command_buffer/service/context_state.cc b/gpu/command_buffer/service/context_state.cc
index 866abf44f241b447c83a5dbf05532b6373e0194f..f0524abb5722ebb6a8e5771b07ede0c5450edce4 100644
--- a/gpu/command_buffer/service/context_state.cc
+++ b/gpu/command_buffer/service/context_state.cc
@@ -4,9 +4,23 @@
 
 #include "gpu/command_buffer/service/context_state.h"
 
+#include "gpu/command_buffer/common/gles2_cmd_utils.h"
+
 namespace gpu {
 namespace gles2 {
 
+namespace {
+
+void EnableDisable(GLenum pname, bool enable) {
+  if (enable) {
+    glEnable(pname);
+  } else {
+    glDisable(pname);
+  }
+}
+
+}  // anonymous namespace.
+
 TextureUnit::TextureUnit()
     : bind_target(GL_TEXTURE_2D) {
 }
@@ -18,78 +32,22 @@ ContextState::ContextState()
     : pack_alignment(4),
       unpack_alignment(4),
       active_texture_unit(0),
-      color_clear_red(0),
-      color_clear_green(0),
-      color_clear_blue(0),
-      color_clear_alpha(0),
-      color_mask_red(true),
-      color_mask_green(true),
-      color_mask_blue(true),
-      color_mask_alpha(true),
-      depth_clear(1.0f),
-      depth_mask(true),
-      depth_func(GL_LESS),
-      z_near(0.0f),
-      z_far(1.0f),
-      enable_blend(false),
-      enable_cull_face(false),
-      enable_scissor_test(false),
-      enable_depth_test(false),
-      enable_stencil_test(false),
-      enable_polygon_offset_fill(false),
-      enable_dither(true),
-      enable_sample_alpha_to_coverage(false),
-      enable_sample_coverage(false),
-      viewport_x(0),
-      viewport_y(0),
-      viewport_width(0),
-      viewport_height(0),
       viewport_max_width(0),
       viewport_max_height(0),
-      scissor_x(0),
-      scissor_y(0),
-      scissor_width(0),
-      scissor_height(0),
-      cull_mode(GL_BACK),
-      front_face(GL_CCW),
-      blend_source_rgb(GL_ONE),
-      blend_dest_rgb(GL_ZERO),
-      blend_source_alpha(GL_ONE),
-      blend_dest_alpha(GL_ZERO),
-      blend_equation_rgb(GL_FUNC_ADD),
-      blend_equation_alpha(GL_FUNC_ADD),
-      blend_color_red(0),
-      blend_color_green(0),
-      blend_color_blue(0),
-      blend_color_alpha(0),
-      stencil_clear(0),
-      stencil_front_writemask(0xFFFFFFFFU),
-      stencil_front_func(GL_ALWAYS),
-      stencil_front_ref(0),
-      stencil_front_mask(0xFFFFFFFFU),
-      stencil_front_fail_op(GL_KEEP),
-      stencil_front_z_fail_op(GL_KEEP),
-      stencil_front_z_pass_op(GL_KEEP),
-      stencil_back_writemask(0xFFFFFFFFU),
-      stencil_back_func(GL_ALWAYS),
-      stencil_back_ref(0),
-      stencil_back_mask(0xFFFFFFFFU),
-      stencil_back_fail_op(GL_KEEP),
-      stencil_back_z_fail_op(GL_KEEP),
-      stencil_back_z_pass_op(GL_KEEP),
-      polygon_offset_factor(0.0f),
-      polygon_offset_units(0.0f),
-      sample_coverage_value(1.0f),
-      sample_coverage_invert(false),
-      line_width(1.0),
       hint_generate_mipmap(GL_DONT_CARE),
       hint_fragment_shader_derivative(GL_DONT_CARE),
       pack_reverse_row_order(false) {
+  Initialize();
 }
 
 ContextState::~ContextState() {
 }
 
+// Include the auto-generated part of this file. We split this because it means
+// we can easily edit the non-auto generated parts right here in this file
+// instead of having to edit some template or the code generator.
+#include "gpu/command_buffer/service/context_state_impl_autogen.h"
+
 }  // namespace gles2
 }  // namespace gpu