262 lines
8.6 KiB
C++
262 lines
8.6 KiB
C++
// Copyright (c) 2016-2018 Kiwano - Nomango
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#pragma once
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#include <kiwano/core/Component.h>
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#include <kiwano/render/Font.h>
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#include <kiwano/render/GifImage.h>
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#include <kiwano/render/TextStyle.hpp>
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#include <kiwano/render/RenderContext.h>
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#include <kiwano/render/TextureRenderContext.h>
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namespace kiwano
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{
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/**
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* \~chinese
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* \defgroup Render 渲染引擎
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*/
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/**
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* \addtogroup Render
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* @{
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*/
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/**
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* \~chinese
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* @brief 渲染器
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*/
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class KGE_API Renderer : public EventComponent
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{
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public:
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/// \~chinese
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/// @brief 获取实例
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static Renderer& GetInstance();
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/// \~chinese
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/// @brief 获取清屏颜色
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virtual Color GetClearColor() const;
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/// \~chinese
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/// @brief 设置清屏颜色
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virtual void SetClearColor(Color const& clear_color);
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/// \~chinese
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/// @brief 开启或关闭垂直同步
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virtual void SetVSyncEnabled(bool enabled);
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/// \~chinese
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/// @brief 创建纹理内部资源
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/// @param[out] texture 纹理
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/// @param[in] file_path 图片路径
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/// @throw kiwano::SystemException 创建失败时抛出
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virtual void CreateTexture(Texture& texture, String const& file_path) = 0;
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/// \~chinese
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/// @brief 创建纹理内部资源
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/// @param[out] texture 纹理
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/// @param[in] resource 图片资源
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/// @throw kiwano::SystemException 创建失败时抛出
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virtual void CreateTexture(Texture& texture, Resource const& resource) = 0;
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/// \~chinese
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/// @brief 创建GIF图像内部资源
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/// @param[out] gif GIF图像
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/// @param[in] file_path 图片路径
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/// @throw kiwano::SystemException 创建失败时抛出
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virtual void CreateGifImage(GifImage& gif, String const& file_path) = 0;
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/// \~chinese
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/// @brief 创建GIF图像内部资源
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/// @param[out] gif GIF图像
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/// @param[in] resource 图片资源
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/// @throw kiwano::SystemException 创建失败时抛出
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virtual void CreateGifImage(GifImage& gif, Resource const& resource) = 0;
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/// \~chinese
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/// @brief 创建GIF图像帧内部资源
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/// @param[out] frame GIF图像帧
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/// @param[in] gif GIF图像
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/// @param[in] frame_index 帧下标
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/// @throw kiwano::SystemException 创建失败时抛出
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virtual void CreateGifImageFrame(GifImage::Frame& frame, GifImage const& gif, size_t frame_index) = 0;
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/// \~chinese
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/// @brief 创建字体集内部资源
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/// @param[out] font 字体
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/// @param[in] file_paths 字体文件路径
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/// @throw kiwano::SystemException 创建失败时抛出
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virtual void CreateFontCollection(Font& font, String const& file_path) = 0;
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/// \~chinese
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/// @brief 创建字体集内部资源
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/// @param[out] font 字体
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/// @param[in] res_arr 字体资源
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/// @throw kiwano::SystemException 创建失败时抛出
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virtual void CreateFontCollection(Font& font, Resource const& res) = 0;
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/// \~chinese
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/// @brief 创建文字格式内部资源
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/// @param[out] layout 字体布局
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/// @throw kiwano::SystemException 创建失败时抛出
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virtual void CreateTextFormat(TextLayout& layout) = 0;
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/// \~chinese
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/// @brief 创建文字布局内部资源
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/// @param[out] layout 字体布局
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/// @throw kiwano::SystemException 创建失败时抛出
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virtual void CreateTextLayout(TextLayout& layout) = 0;
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/// \~chinese
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/// @brief 创建线段形状内部资源
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/// @param[out] shape 形状
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/// @param[in] begin_pos 线段起点
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/// @param[in] end_pos 线段终点
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/// @throw kiwano::SystemException 创建失败时抛出
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virtual void CreateLineShape(Shape& shape, Point const& begin_pos, Point const& end_pos) = 0;
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/// \~chinese
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/// @brief 创建矩形形状内部资源
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/// @param[out] shape 形状
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/// @param[in] rect 矩形大小
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/// @throw kiwano::SystemException 创建失败时抛出
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virtual void CreateRectShape(Shape& shape, Rect const& rect) = 0;
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/// \~chinese
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/// @brief 创建圆角矩形形状内部资源
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/// @param[out] shape 形状
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/// @param[in] rect 矩形大小
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/// @param[in] radius 圆角半径
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/// @throw kiwano::SystemException 创建失败时抛出
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virtual void CreateRoundedRectShape(Shape& shape, Rect const& rect, Vec2 const& radius) = 0;
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/// \~chinese
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/// @brief 创建椭圆形状内部资源
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/// @param[out] shape 形状
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/// @param[in] center 椭圆圆心
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/// @param[in] radius 椭圆半径
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/// @throw kiwano::SystemException 创建失败时抛出
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virtual void CreateEllipseShape(Shape& shape, Point const& center, Vec2 const& radius) = 0;
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/// \~chinese
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/// @brief 创建几何图形生成器内部资源
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/// @param[out] sink 形状生成器
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/// @throw kiwano::SystemException 创建失败时抛出
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virtual void CreateShapeSink(ShapeSink& sink) = 0;
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/// \~chinese
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/// @brief 创建纯色画刷内部资源
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/// @param[out] brush 画刷
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/// @param[in] color 颜色
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/// @throw kiwano::SystemException 创建失败时抛出
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virtual void CreateBrush(Brush& brush, Color const& color) = 0;
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/// \~chinese
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/// @brief 创建线性渐变画刷内部资源
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/// @param[out] brush 画刷
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/// @param[in] style 线性渐变样式
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/// @throw kiwano::SystemException 创建失败时抛出
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virtual void CreateBrush(Brush& brush, LinearGradientStyle const& style) = 0;
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/// \~chinese
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/// @brief 创建径向渐变画刷内部资源
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/// @param[out] brush 画刷
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/// @param[in] style 径向渐变样式
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/// @throw kiwano::SystemException 创建失败时抛出
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virtual void CreateBrush(Brush& brush, RadialGradientStyle const& style) = 0;
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/// \~chinese
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/// @brief 创建线条样式内部资源
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/// @param[out] stroke_style 线条样式
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/// @param[in] cap 线段端点样式
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/// @param[in] line_join 线段相交样式
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/// @param[in] dash_array 虚线长度与间隙数组
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/// @param[in] dash_size 虚线数组大小
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/// @param[in] dash_offset 虚线偏移量
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/// @throw kiwano::SystemException 创建失败时抛出
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virtual void CreateStrokeStyle(StrokeStyle& stroke_style, CapStyle cap, LineJoinStyle line_join,
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const float* dash_array, size_t dash_size, float dash_offset) = 0;
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/// \~chinese
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/// @brief 创建纹理渲染上下文
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/// @param[in] desired_size 期望的输出大小
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/// @return 纹理渲染上下文
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/// @throw kiwano::SystemException 创建失败时抛出
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virtual TextureRenderContextPtr CreateTextureRenderContext(const Size* desired_size = nullptr) = 0;
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public:
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/// \~chinese
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/// @brief 开始渲染
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virtual void BeginDraw() = 0;
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/// \~chinese
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/// @brief 结束渲染
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virtual void EndDraw() = 0;
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/// \~chinese
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/// @brief 清除绘制内容
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virtual void Clear() = 0;
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/// \~chinese
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/// @brief 将绘制内容呈现至窗口
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/// @throw kiwano::SystemException 呈现失败时抛出
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virtual void Present() = 0;
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/// \~chinese
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/// @brief 获取渲染上下文
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virtual RenderContext& GetContext() = 0;
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/// \~chinese
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/// @brief 获取渲染输出大小
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virtual Size GetOutputSize() const;
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protected:
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Renderer();
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protected:
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bool vsync_;
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Color clear_color_;
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Size output_size_;
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};
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/** @} */
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inline Size Renderer::GetOutputSize() const
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{
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return output_size_;
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}
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inline Color Renderer::GetClearColor() const
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{
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return clear_color_;
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}
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inline void Renderer::SetVSyncEnabled(bool enabled)
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{
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vsync_ = enabled;
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}
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inline void Renderer::SetClearColor(const Color& color)
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{
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clear_color_ = color;
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}
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} // namespace kiwano
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