32 lines
1.4 KiB
C++
32 lines
1.4 KiB
C++
#pragma once
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#include "frame/Frame_2D.hpp"
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#include "export/export.h"
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#include "model/Model.hpp"
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#include "model/attachment/dirty/Dirty_Concurrent.hpp"
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#include "model/attachment/dag/Dag_Relation.hpp"
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#include "rely_facade.h"
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#include <exception>
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#include <functional>
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#include "scene/src/Scene.hpp"
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namespace aethera::render_2d {
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/* 执行二维 Renderable DAG 并向调用方拥有的物理帧合成像素。 */
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struct Render_Scene_2D : Def<Render_Scene_2D, Scene, Dirty_Import_Struct_Concurrent<Prop_Tag>> {
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using Scene_Renderable_Facade = scene::Renderable;
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struct Prop : Prev<Prop_Tag> {
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Size viewport{}; /* 最终帧像素尺寸；空尺寸不提交渲染。 */
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Color background{Color::black()}; /* 每帧绘制 Renderable 前写入的背景颜色。 */
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bool view_active{}; /* true 时允许产生新的完成帧。 */
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};
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struct Private;
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using Completion = std::function<void(Frame_2D *, std::exception_ptr)>;
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Render_Scene_2D();
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~Render_Scene_2D() noexcept;
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/* frame 是非拥有借用，并须存活到 completion 返回；同一 Scene 仅允许一帧在途。 */
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[[nodiscard]] Render_Scene_2D_Result render(Frame_2D* frame, Completion completion);
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void activate_view();
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void deactivate_view();
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};
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} // namespace aethera::render_2d
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#include "Render_Scene_2D.ipp"
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