command_buffer: Implement path rendering functions for CHROMIUM_path_rendering

gpu/command_buffer/service/context_state_impl_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 82 matching lines @@
   projection_matrix[6] = 0.0f;
   projection_matrix[7] = 0.0f;
   projection_matrix[8] = 0.0f;
   projection_matrix[9] = 0.0f;
   projection_matrix[10] = 1.0f;
   projection_matrix[11] = 0.0f;
   projection_matrix[12] = 0.0f;
   projection_matrix[13] = 0.0f;
   projection_matrix[14] = 0.0f;
   projection_matrix[15] = 1.0f;
+  stencil_path_func = GL_ALWAYS;
+  stencil_path_ref = 0;
+  stencil_path_mask = 0xFFFFFFFFU;
   pack_alignment = 4;
   unpack_alignment = 4;
   polygon_offset_factor = 0.0f;
   polygon_offset_units = 0.0f;
   sample_coverage_value = 1.0f;
   sample_coverage_invert = false;
   scissor_x = 0;
   scissor_y = 0;
   scissor_width = 1;
   scissor_height = 1;
@@ skipping 133 matching lines @@
         glMatrixLoadfEXT(GL_PATH_MODELVIEW_CHROMIUM, modelview_matrix);
       }
     }
     if (feature_info_->feature_flags().chromium_path_rendering) {
       if (memcmp(prev_state->projection_matrix,
                  projection_matrix,
                  sizeof(GLfloat) * 16)) {
         glMatrixLoadfEXT(GL_PATH_PROJECTION_CHROMIUM, projection_matrix);
       }
     }
+    if (feature_info_->feature_flags().chromium_path_rendering)
+      if ((stencil_path_func != prev_state->stencil_path_func) ||
+          (stencil_path_ref != prev_state->stencil_path_ref) ||
+          (stencil_path_mask != prev_state->stencil_path_mask))
+        glPathStencilFuncNV(
+            stencil_path_func, stencil_path_ref, stencil_path_mask);
     if (prev_state->pack_alignment != pack_alignment) {
       glPixelStorei(GL_PACK_ALIGNMENT, pack_alignment);
     }
     if (prev_state->unpack_alignment != unpack_alignment) {
       glPixelStorei(GL_UNPACK_ALIGNMENT, unpack_alignment);
     }
     if ((polygon_offset_factor != prev_state->polygon_offset_factor) ||
         (polygon_offset_units != prev_state->polygon_offset_units))
       glPolygonOffset(polygon_offset_factor, polygon_offset_units);
     if ((sample_coverage_value != prev_state->sample_coverage_value) ||
@@ skipping 67 matching lines @@
       glHint(GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES,
              hint_fragment_shader_derivative);
     }
     glLineWidth(line_width);
     if (feature_info_->feature_flags().chromium_path_rendering) {
       glMatrixLoadfEXT(GL_PATH_MODELVIEW_CHROMIUM, modelview_matrix);
     }
     if (feature_info_->feature_flags().chromium_path_rendering) {
       glMatrixLoadfEXT(GL_PATH_PROJECTION_CHROMIUM, projection_matrix);
     }
+    if (feature_info_->feature_flags().chromium_path_rendering)
+      glPathStencilFuncNV(
+          stencil_path_func, stencil_path_ref, stencil_path_mask);
     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);
     glStencilFuncSeparate(
         GL_FRONT, stencil_front_func, stencil_front_ref, stencil_front_mask);
     glStencilFuncSeparate(
         GL_BACK, stencil_back_func, stencil_back_ref, stencil_back_mask);
     glStencilMaskSeparate(GL_FRONT, cached_stencil_front_writemask);
@@ skipping 172 matching lines @@
       }
       return true;
     case GL_PATH_PROJECTION_MATRIX_CHROMIUM:
       *num_written = 16;
       if (params) {
         for (size_t i = 0; i < 16; ++i) {
           params[i] = static_cast<GLint>(round(projection_matrix[i]));
         }
       }
       return true;
+    case GL_PATH_STENCIL_FUNC_CHROMIUM:
+      *num_written = 1;
+      if (params) {
+        params[0] = static_cast<GLint>(stencil_path_func);
+      }
+      return true;
+    case GL_PATH_STENCIL_REF_CHROMIUM:
+      *num_written = 1;
+      if (params) {
+        params[0] = static_cast<GLint>(stencil_path_ref);
+      }
+      return true;
+    case GL_PATH_STENCIL_VALUE_MASK_CHROMIUM:
+      *num_written = 1;
+      if (params) {
+        params[0] = static_cast<GLint>(stencil_path_mask);
+      }
+      return true;
     case GL_PACK_ALIGNMENT:
       *num_written = 1;
       if (params) {
         params[0] = static_cast<GLint>(pack_alignment);
       }
       return true;
     case GL_UNPACK_ALIGNMENT:
       *num_written = 1;
       if (params) {
         params[0] = static_cast<GLint>(unpack_alignment);
@@ skipping 317 matching lines @@
       if (params) {
         memcpy(params, modelview_matrix, sizeof(GLfloat) * 16);
       }
       return true;
     case GL_PATH_PROJECTION_MATRIX_CHROMIUM:
       *num_written = 16;
       if (params) {
         memcpy(params, projection_matrix, sizeof(GLfloat) * 16);
       }
       return true;
+    case GL_PATH_STENCIL_FUNC_CHROMIUM:
+      *num_written = 1;
+      if (params) {
+        params[0] = static_cast<GLfloat>(stencil_path_func);
+      }
+      return true;
+    case GL_PATH_STENCIL_REF_CHROMIUM:
+      *num_written = 1;
+      if (params) {
+        params[0] = static_cast<GLfloat>(stencil_path_ref);
+      }
+      return true;
+    case GL_PATH_STENCIL_VALUE_MASK_CHROMIUM:
+      *num_written = 1;
+      if (params) {
+        params[0] = static_cast<GLfloat>(stencil_path_mask);
+      }
+      return true;
     case GL_PACK_ALIGNMENT:
       *num_written = 1;
       if (params) {
         params[0] = static_cast<GLfloat>(pack_alignment);
       }
       return true;
     case GL_UNPACK_ALIGNMENT:
       *num_written = 1;
       if (params) {
         params[0] = static_cast<GLfloat>(unpack_alignment);
@@ skipping 177 matching lines @@
       *num_written = 1;
       if (params) {
         params[0] = static_cast<GLfloat>(enable_flags.stencil_test);
       }
       return true;
     default:
       return false;
   }
 }
 #endif  // GPU_COMMAND_BUFFER_SERVICE_CONTEXT_STATE_IMPL_AUTOGEN_H_