| /* |
| * Copyright 2015 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_BROWSER_RENDER_TREE_COMBINER_H_ |
| #define COBALT_BROWSER_RENDER_TREE_COMBINER_H_ |
| |
| #include "cobalt/renderer/renderer_module.h" |
| #include "cobalt/renderer/submission.h" |
| |
| namespace cobalt { |
| namespace browser { |
| |
| // Combines the main and debug console render trees. Caches the individual |
| // trees as they are produced. Re-renders when either tree changes. |
| // This class is only fully implemented when ENABLE_DEBUG_CONSOLE is defined, |
| // otherwise (e.g. in release builds) a stub implementation is used. |
| class RenderTreeCombiner { |
| public: |
| explicit RenderTreeCombiner(renderer::RendererModule* renderer_module, |
| const math::Size& viewport_size); |
| ~RenderTreeCombiner(); |
| |
| void Reset(); |
| |
| // Update the main web module render tree. |
| void UpdateMainRenderTree(const renderer::Submission& render_tree_submission); |
| |
| // Update the debug console render tree. |
| void UpdateDebugConsoleRenderTree( |
| const base::optional<renderer::Submission>& render_tree_submission); |
| |
| #if defined(ENABLE_DEBUG_CONSOLE) |
| bool render_debug_console() const { return render_debug_console_; } |
| void set_render_debug_console(bool render_debug_console) { |
| render_debug_console_ = render_debug_console; |
| } |
| #else // ENABLE_DEBUG_CONSOLE |
| bool render_debug_console() const { return false; } |
| void set_render_debug_console(bool render_debug_console) { |
| UNREFERENCED_PARAMETER(render_debug_console); |
| } |
| #endif // ENABLE_DEBUG_CONSOLE |
| |
| private: |
| #if defined(ENABLE_DEBUG_CONSOLE) |
| // Combines the two cached render trees (main/debug) and renders the result. |
| void SubmitToRenderer(); |
| |
| bool render_debug_console_; |
| |
| // Local reference to the render pipeline, so we can submit the combined tree. |
| // Reference counted pointer not necessary here. |
| renderer::RendererModule* renderer_module_; |
| |
| // The size of the output viewport. |
| math::Size viewport_size_; |
| |
| // Local references to the main and debug console render trees/animation maps |
| // so we can combine them. |
| base::optional<renderer::Submission> main_render_tree_; |
| |
| // This is the time that we received the last main render tree submission. |
| // used so that we know what time to forward the submission to the pipeline |
| // with. |
| base::optional<base::TimeTicks> main_render_tree_receipt_time_; |
| |
| // The debug console render tree submission. |
| base::optional<renderer::Submission> debug_console_render_tree_; |
| #else // ENABLE_DEBUG_CONSOLE |
| // Use this local reference even in release builds to submit the main tree. |
| renderer::RendererModule* renderer_module_; |
| #endif // ENABLE_DEBUG_CONSOLE |
| }; |
| |
| } // namespace browser |
| } // namespace cobalt |
| |
| #endif // COBALT_BROWSER_RENDER_TREE_COMBINER_H_ |