| // Copyright 2017 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef COBALT_RENDERER_RASTERIZER_EGL_DRAW_POLY_COLOR_H_ |
| #define COBALT_RENDERER_RASTERIZER_EGL_DRAW_POLY_COLOR_H_ |
| |
| #include <vector> |
| |
| #include "base/optional.h" |
| #include "cobalt/math/rect_f.h" |
| #include "cobalt/render_tree/color_rgba.h" |
| #include "cobalt/renderer/rasterizer/egl/draw_object.h" |
| |
| namespace cobalt { |
| namespace renderer { |
| namespace rasterizer { |
| namespace egl { |
| |
| // Handles drawing various colored polygons. |
| class DrawPolyColor : public DrawObject { |
| public: |
| DrawPolyColor(GraphicsState* graphics_state, |
| const BaseState& base_state, |
| const math::RectF& rect, |
| const render_tree::ColorRGBA& color); |
| |
| bool TryMerge(DrawObject* other) OVERRIDE; |
| void ExecuteUpdateVertexBuffer(GraphicsState* graphics_state, |
| ShaderProgramManager* program_manager) OVERRIDE; |
| void ExecuteRasterize(GraphicsState* graphics_state, |
| ShaderProgramManager* program_manager) OVERRIDE; |
| base::TypeId GetTypeId() const OVERRIDE; |
| |
| protected: |
| explicit DrawPolyColor(const BaseState& base_state); |
| void SetupShader(GraphicsState* graphics_state, |
| ShaderProgramManager* program_manager); |
| void AddRectVertices(const math::RectF& rect, uint32_t color); |
| void AddRectIndices(uint16_t top_left, uint16_t top_right, |
| uint16_t bottom_left, uint16_t bottom_right); |
| bool PrepareForMerge(); |
| |
| struct VertexAttributes { |
| VertexAttributes(float x, float y, uint32_t color32) { |
| position[0] = x; |
| position[1] = y; |
| color = color32; |
| } |
| float position[2]; |
| uint32_t color; |
| }; |
| std::vector<VertexAttributes> attributes_; |
| std::vector<uint16_t> indices_; |
| |
| uint16_t* index_buffer_; |
| uint8_t* vertex_buffer_; |
| base::optional<bool> can_merge_; |
| }; |
| |
| } // namespace egl |
| } // namespace rasterizer |
| } // namespace renderer |
| } // namespace cobalt |
| |
| #endif // COBALT_RENDERER_RASTERIZER_EGL_DRAW_POLY_COLOR_H_ |