| // 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. |
| |
| #include "cobalt/renderer/rasterizer/egl/draw_object_manager.h" |
| |
| namespace cobalt { |
| namespace renderer { |
| namespace rasterizer { |
| namespace egl { |
| |
| void DrawObjectManager::AddOpaqueDraw(scoped_ptr<DrawObject> object, |
| DrawType type) { |
| draw_objects_[type].push_back(object.release()); |
| } |
| |
| void DrawObjectManager::AddTransparentDraw(scoped_ptr<DrawObject> object, |
| DrawType type, |
| const math::RectF& bounds) { |
| // Try to sort the transparent object next to another object of its type. |
| // However, this can only be done as long as its bounds do not overlap with |
| // the other object while swapping draw order. |
| size_t position = transparent_object_info_.size(); |
| while (position > 0) { |
| if (transparent_object_info_[position - 1].type <= type) { |
| break; |
| } |
| if (transparent_object_info_[position - 1].bounds.Intersects(bounds)) { |
| break; |
| } |
| --position; |
| } |
| |
| transparent_object_info_.insert( |
| transparent_object_info_.begin() + position, |
| TransparentObjectInfo(type, bounds)); |
| draw_objects_[kDrawTransparent].insert( |
| draw_objects_[kDrawTransparent].begin() + position, |
| object.release()); |
| } |
| |
| void DrawObjectManager::ExecuteUpdateVertexBuffer(GraphicsState* graphics_state, |
| ShaderProgramManager* program_manager) { |
| for (int type = 0; type < kDrawCount; ++type) { |
| for (size_t index = 0; index < draw_objects_[type].size(); ++index) { |
| draw_objects_[type][index]->ExecuteUpdateVertexBuffer(graphics_state, |
| program_manager); |
| } |
| } |
| } |
| |
| void DrawObjectManager::ExecuteRasterizeOffscreen(GraphicsState* graphics_state, |
| ShaderProgramManager* program_manager) { |
| for (int type = 0; type < kDrawCount; ++type) { |
| for (size_t index = 0; index < draw_objects_[type].size(); ++index) { |
| draw_objects_[type][index]->ExecuteRasterizeOffscreen(graphics_state, |
| program_manager); |
| } |
| } |
| } |
| |
| void DrawObjectManager::ExecuteRasterizeNormal(GraphicsState* graphics_state, |
| ShaderProgramManager* program_manager) { |
| for (int type = 0; type < kDrawCount; ++type) { |
| if (type == kDrawTransparent) { |
| graphics_state->EnableBlend(); |
| graphics_state->DisableDepthWrite(); |
| } else { |
| graphics_state->DisableBlend(); |
| graphics_state->EnableDepthWrite(); |
| } |
| |
| for (size_t index = 0; index < draw_objects_[type].size(); ++index) { |
| draw_objects_[type][index]->ExecuteRasterizeNormal(graphics_state, |
| program_manager); |
| } |
| } |
| } |
| |
| } // namespace egl |
| } // namespace rasterizer |
| } // namespace renderer |
| } // namespace cobalt |