gpu: Make pack/unpack alignment part of autogenerated state

gpu/command_buffer/service/context_state_impl_autogen.h

Index: gpu/command_buffer/service/context_state_impl_autogen.h
diff --git a/gpu/command_buffer/service/context_state_impl_autogen.h b/gpu/command_buffer/service/context_state_impl_autogen.h
index bd71bddf7e4b7b24faf1aa5f64120e69036654f4..ef81ff2d39c410552a3528d46307c1f43d603a4a 100644
--- a/gpu/command_buffer/service/context_state_impl_autogen.h
+++ b/gpu/command_buffer/service/context_state_impl_autogen.h
@@ -52,6 +52,8 @@ void ContextState::Initialize() {
   hint_generate_mipmap = GL_DONT_CARE;
   hint_fragment_shader_derivative = GL_DONT_CARE;
   line_width = 1.0f;
+  pack_alignment = 4;
+  unpack_alignment = 4;
   polygon_offset_factor = 0.0f;
   polygon_offset_units = 0.0f;
   sample_coverage_value = 1.0f;
@@ -115,6 +117,8 @@ void ContextState::InitState() const {
     glHint(
       GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES, hint_fragment_shader_derivative);
   glLineWidth(line_width);
+  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);
@@ -161,37 +165,28 @@ bool ContextState::GetEnabled(GLenum cap) const {
 bool ContextState::GetStateAsGLint(
     GLenum pname, GLint* params, GLsizei* num_written) const {
   switch (pname) {
-    case GL_VIEWPORT:
-      *num_written = 4;
-      if (params) {
-        params[0] = static_cast<GLint>(viewport_x);
-        params[1] = static_cast<GLint>(viewport_y);
-        params[2] = static_cast<GLint>(viewport_width);
-        params[3] = static_cast<GLint>(viewport_height);
-      }
-      return true;
-    case GL_BLEND_SRC_RGB:
+    case GL_GENERATE_MIPMAP_HINT:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(blend_source_rgb);
+        params[0] = static_cast<GLint>(hint_generate_mipmap);
       }
       return true;
-    case GL_BLEND_DST_RGB:
+    case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(blend_dest_rgb);
+        params[0] = static_cast<GLint>(hint_fragment_shader_derivative);
       }
       return true;
-    case GL_BLEND_SRC_ALPHA:
+    case GL_DEPTH_CLEAR_VALUE:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(blend_source_alpha);
+        params[0] = static_cast<GLint>(depth_clear);
       }
       return true;
-    case GL_BLEND_DST_ALPHA:
+    case GL_CULL_FACE_MODE:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(blend_dest_alpha);
+        params[0] = static_cast<GLint>(cull_mode);
       }
       return true;
     case GL_LINE_WIDTH:
@@ -215,16 +210,37 @@ bool ContextState::GetStateAsGLint(
         params[0] = static_cast<GLint>(stencil_clear);
       }
       return true;
-    case GL_GENERATE_MIPMAP_HINT:
+    case GL_PACK_ALIGNMENT:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(hint_generate_mipmap);
+        params[0] = static_cast<GLint>(pack_alignment);
       }
       return true;
-    case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES:
+    case GL_UNPACK_ALIGNMENT:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(hint_fragment_shader_derivative);
+        params[0] = static_cast<GLint>(unpack_alignment);
+      }
+      return true;
+    case GL_STENCIL_WRITEMASK:
+      *num_written = 1;
+      if (params) {
+        params[0] = static_cast<GLint>(stencil_front_writemask);
+      }
+      return true;
+    case GL_STENCIL_BACK_WRITEMASK:
+      *num_written = 1;
+      if (params) {
+        params[0] = static_cast<GLint>(stencil_back_writemask);
+      }
+      return true;
+    case GL_VIEWPORT:
+      *num_written = 4;
+      if (params) {
+        params[0] = static_cast<GLint>(viewport_x);
+        params[1] = static_cast<GLint>(viewport_y);
+        params[2] = static_cast<GLint>(viewport_width);
+        params[3] = static_cast<GLint>(viewport_height);
       }
       return true;
     case GL_COLOR_WRITEMASK:
@@ -252,163 +268,163 @@ bool ContextState::GetStateAsGLint(
         params[1] = static_cast<GLint>(z_far);
       }
       return true;
-    case GL_DEPTH_CLEAR_VALUE:
-      *num_written = 1;
+    case GL_SCISSOR_BOX:
+      *num_written = 4;
       if (params) {
-        params[0] = static_cast<GLint>(depth_clear);
+        params[0] = static_cast<GLint>(scissor_x);
+        params[1] = static_cast<GLint>(scissor_y);
+        params[2] = static_cast<GLint>(scissor_width);
+        params[3] = static_cast<GLint>(scissor_height);
       }
       return true;
-    case GL_STENCIL_FAIL:
+    case GL_POLYGON_OFFSET_FACTOR:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(stencil_front_fail_op);
+        params[0] = static_cast<GLint>(polygon_offset_factor);
       }
       return true;
-    case GL_STENCIL_PASS_DEPTH_FAIL:
+    case GL_POLYGON_OFFSET_UNITS:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(stencil_front_z_fail_op);
+        params[0] = static_cast<GLint>(polygon_offset_units);
       }
       return true;
-    case GL_STENCIL_PASS_DEPTH_PASS:
+    case GL_SAMPLE_COVERAGE_VALUE:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(stencil_front_z_pass_op);
+        params[0] = static_cast<GLint>(sample_coverage_value);
       }
       return true;
-    case GL_STENCIL_BACK_FAIL:
+    case GL_SAMPLE_COVERAGE_INVERT:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(stencil_back_fail_op);
+        params[0] = static_cast<GLint>(sample_coverage_invert);
       }
       return true;
-    case GL_STENCIL_BACK_PASS_DEPTH_FAIL:
+    case GL_STENCIL_FUNC:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(stencil_back_z_fail_op);
+        params[0] = static_cast<GLint>(stencil_front_func);
       }
       return true;
-    case GL_STENCIL_BACK_PASS_DEPTH_PASS:
+    case GL_STENCIL_REF:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(stencil_back_z_pass_op);
+        params[0] = static_cast<GLint>(stencil_front_ref);
       }
       return true;
-    case GL_SCISSOR_BOX:
-      *num_written = 4;
+    case GL_STENCIL_VALUE_MASK:
+      *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(scissor_x);
-        params[1] = static_cast<GLint>(scissor_y);
-        params[2] = static_cast<GLint>(scissor_width);
-        params[3] = static_cast<GLint>(scissor_height);
+        params[0] = static_cast<GLint>(stencil_front_mask);
       }
       return true;
-    case GL_FRONT_FACE:
+    case GL_STENCIL_BACK_FUNC:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(front_face);
+        params[0] = static_cast<GLint>(stencil_back_func);
       }
       return true;
-    case GL_SAMPLE_COVERAGE_VALUE:
+    case GL_STENCIL_BACK_REF:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(sample_coverage_value);
+        params[0] = static_cast<GLint>(stencil_back_ref);
       }
       return true;
-    case GL_SAMPLE_COVERAGE_INVERT:
+    case GL_STENCIL_BACK_VALUE_MASK:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(sample_coverage_invert);
+        params[0] = static_cast<GLint>(stencil_back_mask);
       }
       return true;
-    case GL_POLYGON_OFFSET_FACTOR:
+    case GL_BLEND_SRC_RGB:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(polygon_offset_factor);
+        params[0] = static_cast<GLint>(blend_source_rgb);
       }
       return true;
-    case GL_POLYGON_OFFSET_UNITS:
+    case GL_BLEND_DST_RGB:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(polygon_offset_units);
+        params[0] = static_cast<GLint>(blend_dest_rgb);
       }
       return true;
-    case GL_CULL_FACE_MODE:
+    case GL_BLEND_SRC_ALPHA:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(cull_mode);
+        params[0] = static_cast<GLint>(blend_source_alpha);
       }
       return true;
-    case GL_DEPTH_FUNC:
+    case GL_BLEND_DST_ALPHA:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(depth_func);
+        params[0] = static_cast<GLint>(blend_dest_alpha);
       }
       return true;
-    case GL_STENCIL_FUNC:
+    case GL_DEPTH_FUNC:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(stencil_front_func);
+        params[0] = static_cast<GLint>(depth_func);
       }
       return true;
-    case GL_STENCIL_REF:
+    case GL_DEPTH_WRITEMASK:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(stencil_front_ref);
+        params[0] = static_cast<GLint>(depth_mask);
       }
       return true;
-    case GL_STENCIL_VALUE_MASK:
+    case GL_STENCIL_FAIL:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(stencil_front_mask);
+        params[0] = static_cast<GLint>(stencil_front_fail_op);
       }
       return true;
-    case GL_STENCIL_BACK_FUNC:
+    case GL_STENCIL_PASS_DEPTH_FAIL:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(stencil_back_func);
+        params[0] = static_cast<GLint>(stencil_front_z_fail_op);
       }
       return true;
-    case GL_STENCIL_BACK_REF:
+    case GL_STENCIL_PASS_DEPTH_PASS:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(stencil_back_ref);
+        params[0] = static_cast<GLint>(stencil_front_z_pass_op);
       }
       return true;
-    case GL_STENCIL_BACK_VALUE_MASK:
+    case GL_STENCIL_BACK_FAIL:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(stencil_back_mask);
+        params[0] = static_cast<GLint>(stencil_back_fail_op);
       }
       return true;
-    case GL_DEPTH_WRITEMASK:
+    case GL_STENCIL_BACK_PASS_DEPTH_FAIL:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(depth_mask);
+        params[0] = static_cast<GLint>(stencil_back_z_fail_op);
       }
       return true;
-    case GL_BLEND_EQUATION_RGB:
+    case GL_STENCIL_BACK_PASS_DEPTH_PASS:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(blend_equation_rgb);
+        params[0] = static_cast<GLint>(stencil_back_z_pass_op);
       }
       return true;
-    case GL_BLEND_EQUATION_ALPHA:
+    case GL_FRONT_FACE:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(blend_equation_alpha);
+        params[0] = static_cast<GLint>(front_face);
       }
       return true;
-    case GL_STENCIL_WRITEMASK:
+    case GL_BLEND_EQUATION_RGB:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(stencil_front_writemask);
+        params[0] = static_cast<GLint>(blend_equation_rgb);
       }
       return true;
-    case GL_STENCIL_BACK_WRITEMASK:
+    case GL_BLEND_EQUATION_ALPHA:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLint>(stencil_back_writemask);
+        params[0] = static_cast<GLint>(blend_equation_alpha);
       }
       return true;
     case GL_BLEND:
@@ -473,37 +489,28 @@ bool ContextState::GetStateAsGLint(
 bool ContextState::GetStateAsGLfloat(
     GLenum pname, GLfloat* params, GLsizei* num_written) const {
   switch (pname) {
-    case GL_VIEWPORT:
-      *num_written = 4;
-      if (params) {
-        params[0] = static_cast<GLfloat>(viewport_x);
-        params[1] = static_cast<GLfloat>(viewport_y);
-        params[2] = static_cast<GLfloat>(viewport_width);
-        params[3] = static_cast<GLfloat>(viewport_height);
-      }
-      return true;
-    case GL_BLEND_SRC_RGB:
+    case GL_GENERATE_MIPMAP_HINT:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(blend_source_rgb);
+        params[0] = static_cast<GLfloat>(hint_generate_mipmap);
       }
       return true;
-    case GL_BLEND_DST_RGB:
+    case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(blend_dest_rgb);
+        params[0] = static_cast<GLfloat>(hint_fragment_shader_derivative);
       }
       return true;
-    case GL_BLEND_SRC_ALPHA:
+    case GL_DEPTH_CLEAR_VALUE:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(blend_source_alpha);
+        params[0] = static_cast<GLfloat>(depth_clear);
       }
       return true;
-    case GL_BLEND_DST_ALPHA:
+    case GL_CULL_FACE_MODE:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(blend_dest_alpha);
+        params[0] = static_cast<GLfloat>(cull_mode);
       }
       return true;
     case GL_LINE_WIDTH:
@@ -527,16 +534,37 @@ bool ContextState::GetStateAsGLfloat(
         params[0] = static_cast<GLfloat>(stencil_clear);
       }
       return true;
-    case GL_GENERATE_MIPMAP_HINT:
+    case GL_PACK_ALIGNMENT:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(hint_generate_mipmap);
+        params[0] = static_cast<GLfloat>(pack_alignment);
       }
       return true;
-    case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES:
+    case GL_UNPACK_ALIGNMENT:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(hint_fragment_shader_derivative);
+        params[0] = static_cast<GLfloat>(unpack_alignment);
+      }
+      return true;
+    case GL_STENCIL_WRITEMASK:
+      *num_written = 1;
+      if (params) {
+        params[0] = static_cast<GLfloat>(stencil_front_writemask);
+      }
+      return true;
+    case GL_STENCIL_BACK_WRITEMASK:
+      *num_written = 1;
+      if (params) {
+        params[0] = static_cast<GLfloat>(stencil_back_writemask);
+      }
+      return true;
+    case GL_VIEWPORT:
+      *num_written = 4;
+      if (params) {
+        params[0] = static_cast<GLfloat>(viewport_x);
+        params[1] = static_cast<GLfloat>(viewport_y);
+        params[2] = static_cast<GLfloat>(viewport_width);
+        params[3] = static_cast<GLfloat>(viewport_height);
       }
       return true;
     case GL_COLOR_WRITEMASK:
@@ -564,163 +592,163 @@ bool ContextState::GetStateAsGLfloat(
         params[1] = static_cast<GLfloat>(z_far);
       }
       return true;
-    case GL_DEPTH_CLEAR_VALUE:
-      *num_written = 1;
+    case GL_SCISSOR_BOX:
+      *num_written = 4;
       if (params) {
-        params[0] = static_cast<GLfloat>(depth_clear);
+        params[0] = static_cast<GLfloat>(scissor_x);
+        params[1] = static_cast<GLfloat>(scissor_y);
+        params[2] = static_cast<GLfloat>(scissor_width);
+        params[3] = static_cast<GLfloat>(scissor_height);
       }
       return true;
-    case GL_STENCIL_FAIL:
+    case GL_POLYGON_OFFSET_FACTOR:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(stencil_front_fail_op);
+        params[0] = static_cast<GLfloat>(polygon_offset_factor);
       }
       return true;
-    case GL_STENCIL_PASS_DEPTH_FAIL:
+    case GL_POLYGON_OFFSET_UNITS:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(stencil_front_z_fail_op);
+        params[0] = static_cast<GLfloat>(polygon_offset_units);
       }
       return true;
-    case GL_STENCIL_PASS_DEPTH_PASS:
+    case GL_SAMPLE_COVERAGE_VALUE:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(stencil_front_z_pass_op);
+        params[0] = static_cast<GLfloat>(sample_coverage_value);
       }
       return true;
-    case GL_STENCIL_BACK_FAIL:
+    case GL_SAMPLE_COVERAGE_INVERT:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(stencil_back_fail_op);
+        params[0] = static_cast<GLfloat>(sample_coverage_invert);
       }
       return true;
-    case GL_STENCIL_BACK_PASS_DEPTH_FAIL:
+    case GL_STENCIL_FUNC:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(stencil_back_z_fail_op);
+        params[0] = static_cast<GLfloat>(stencil_front_func);
       }
       return true;
-    case GL_STENCIL_BACK_PASS_DEPTH_PASS:
+    case GL_STENCIL_REF:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(stencil_back_z_pass_op);
+        params[0] = static_cast<GLfloat>(stencil_front_ref);
       }
       return true;
-    case GL_SCISSOR_BOX:
-      *num_written = 4;
+    case GL_STENCIL_VALUE_MASK:
+      *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(scissor_x);
-        params[1] = static_cast<GLfloat>(scissor_y);
-        params[2] = static_cast<GLfloat>(scissor_width);
-        params[3] = static_cast<GLfloat>(scissor_height);
+        params[0] = static_cast<GLfloat>(stencil_front_mask);
       }
       return true;
-    case GL_FRONT_FACE:
+    case GL_STENCIL_BACK_FUNC:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(front_face);
+        params[0] = static_cast<GLfloat>(stencil_back_func);
       }
       return true;
-    case GL_SAMPLE_COVERAGE_VALUE:
+    case GL_STENCIL_BACK_REF:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(sample_coverage_value);
+        params[0] = static_cast<GLfloat>(stencil_back_ref);
       }
       return true;
-    case GL_SAMPLE_COVERAGE_INVERT:
+    case GL_STENCIL_BACK_VALUE_MASK:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(sample_coverage_invert);
+        params[0] = static_cast<GLfloat>(stencil_back_mask);
       }
       return true;
-    case GL_POLYGON_OFFSET_FACTOR:
+    case GL_BLEND_SRC_RGB:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(polygon_offset_factor);
+        params[0] = static_cast<GLfloat>(blend_source_rgb);
       }
       return true;
-    case GL_POLYGON_OFFSET_UNITS:
+    case GL_BLEND_DST_RGB:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(polygon_offset_units);
+        params[0] = static_cast<GLfloat>(blend_dest_rgb);
       }
       return true;
-    case GL_CULL_FACE_MODE:
+    case GL_BLEND_SRC_ALPHA:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(cull_mode);
+        params[0] = static_cast<GLfloat>(blend_source_alpha);
       }
       return true;
-    case GL_DEPTH_FUNC:
+    case GL_BLEND_DST_ALPHA:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(depth_func);
+        params[0] = static_cast<GLfloat>(blend_dest_alpha);
       }
       return true;
-    case GL_STENCIL_FUNC:
+    case GL_DEPTH_FUNC:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(stencil_front_func);
+        params[0] = static_cast<GLfloat>(depth_func);
       }
       return true;
-    case GL_STENCIL_REF:
+    case GL_DEPTH_WRITEMASK:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(stencil_front_ref);
+        params[0] = static_cast<GLfloat>(depth_mask);
       }
       return true;
-    case GL_STENCIL_VALUE_MASK:
+    case GL_STENCIL_FAIL:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(stencil_front_mask);
+        params[0] = static_cast<GLfloat>(stencil_front_fail_op);
       }
       return true;
-    case GL_STENCIL_BACK_FUNC:
+    case GL_STENCIL_PASS_DEPTH_FAIL:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(stencil_back_func);
+        params[0] = static_cast<GLfloat>(stencil_front_z_fail_op);
       }
       return true;
-    case GL_STENCIL_BACK_REF:
+    case GL_STENCIL_PASS_DEPTH_PASS:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(stencil_back_ref);
+        params[0] = static_cast<GLfloat>(stencil_front_z_pass_op);
       }
       return true;
-    case GL_STENCIL_BACK_VALUE_MASK:
+    case GL_STENCIL_BACK_FAIL:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(stencil_back_mask);
+        params[0] = static_cast<GLfloat>(stencil_back_fail_op);
       }
       return true;
-    case GL_DEPTH_WRITEMASK:
+    case GL_STENCIL_BACK_PASS_DEPTH_FAIL:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(depth_mask);
+        params[0] = static_cast<GLfloat>(stencil_back_z_fail_op);
       }
       return true;
-    case GL_BLEND_EQUATION_RGB:
+    case GL_STENCIL_BACK_PASS_DEPTH_PASS:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(blend_equation_rgb);
+        params[0] = static_cast<GLfloat>(stencil_back_z_pass_op);
       }
       return true;
-    case GL_BLEND_EQUATION_ALPHA:
+    case GL_FRONT_FACE:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(blend_equation_alpha);
+        params[0] = static_cast<GLfloat>(front_face);
       }
       return true;
-    case GL_STENCIL_WRITEMASK:
+    case GL_BLEND_EQUATION_RGB:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(stencil_front_writemask);
+        params[0] = static_cast<GLfloat>(blend_equation_rgb);
       }
       return true;
-    case GL_STENCIL_BACK_WRITEMASK:
+    case GL_BLEND_EQUATION_ALPHA:
       *num_written = 1;
       if (params) {
-        params[0] = static_cast<GLfloat>(stencil_back_writemask);
+        params[0] = static_cast<GLfloat>(blend_equation_alpha);
       }
       return true;
     case GL_BLEND: