119 lines
3.0 KiB
C++
119 lines
3.0 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/renderer/win32/D2DDeviceResources.h>
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#include <kiwano/core/ObjectBase.h>
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namespace kiwano
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{
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class RenderTarget;
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class TextureRenderTarget;
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class Renderer;
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// 插值模式
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// 插值模式指定了位图在缩放和旋转时像素颜色的计算方式
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// Linear (双线性插值): 对周围四个像素进行两次线性插值计算, 在图像放大时可能会模糊（默认）
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// Nearest (最邻近插值): 取最邻近的像素点的颜色值
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enum class InterpolationMode
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{
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Linear, // 双线性插值
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Nearest, // 最邻近插值
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};
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KGE_DECLARE_SMART_PTR(Texture);
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// 纹理
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class KGE_API Texture
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: public ObjectBase
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{
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friend class RenderTarget;
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friend class TextureRenderTarget;
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friend class Renderer;
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public:
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Texture();
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virtual ~Texture();
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// 加载本地文件
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bool Load(
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String const& file_path
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);
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// 加载资源
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bool Load(
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Resource const& res
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);
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// 资源是否有效
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bool IsValid() const;
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// 获取宽度
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float GetWidth() const;
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// 获取高度
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float GetHeight() const;
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// 获取大小
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Size GetSize() const;
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// 获取像素宽度
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uint32_t GetWidthInPixels() const;
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// 获取像素高度
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uint32_t GetHeightInPixels() const;
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// 获取像素大小
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math::Vec2T<uint32_t> GetSizeInPixels() const;
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// 获取像素插值方式
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InterpolationMode GetBitmapInterpolationMode() const;
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// 获取像素格式
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D2D1_PIXEL_FORMAT GetPixelFormat() const;
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// 拷贝位图内存
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void CopyFrom(TexturePtr copy_from);
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// 拷贝位图内存
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void CopyFrom(TexturePtr copy_from, Rect const& src_rect, Point const& dest_point);
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// 设置像素插值方式
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void SetInterpolationMode(InterpolationMode mode);
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// 设置默认的像素插值方式
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static void SetDefaultInterpolationMode(InterpolationMode mode);
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private:
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// 获取源位图
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ComPtr<ID2D1Bitmap> GetBitmap() const;
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// 设置源位图
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void SetBitmap(ComPtr<ID2D1Bitmap> bitmap);
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private:
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ComPtr<ID2D1Bitmap> bitmap_;
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InterpolationMode interpolation_mode_;
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static InterpolationMode default_interpolation_mode_;
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};
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}
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