mirror of
https://github.com/love2d/love.git
synced 2026-08-15 15:51:12 +02:00
Alex Szpakowski
121 lines
2.9 KiB
C++
121 lines
2.9 KiB
C++
/**
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* Copyright (c) 2006-2019 LOVE Development Team
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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**/
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#ifndef LOVE_GRAPHICS_OPENGL_CANVAS_H
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#define LOVE_GRAPHICS_OPENGL_CANVAS_H
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#include "common/config.h"
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#include "common/Color.h"
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#include "common/int.h"
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#include "graphics/Canvas.h"
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#include "graphics/Volatile.h"
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#include "OpenGL.h"
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namespace love
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{
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namespace graphics
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{
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namespace opengl
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{
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class Canvas final : public love::graphics::Canvas, public Volatile
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{
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public:
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Canvas(const Settings &settings);
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virtual ~Canvas();
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// Implements Volatile.
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bool loadVolatile() override;
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void unloadVolatile() override;
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// Implements Texture.
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void setFilter(const Texture::Filter &f) override;
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bool setWrap(const Texture::Wrap &w) override;
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bool setMipmapSharpness(float sharpness) override;
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void setDepthSampleMode(Optional<CompareMode> mode) override;
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ptrdiff_t getHandle() const override;
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love::image::ImageData *newImageData(love::image::Image *module, int slice, int mipmap, const Rect &rect) override;
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void generateMipmaps() override;
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int getMSAA() const override
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{
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return actualSamples;
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}
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ptrdiff_t getRenderTargetHandle() const override
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{
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return renderbuffer != 0 ? renderbuffer : texture;
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}
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inline GLuint getFBO() const
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{
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return fbo;
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}
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static PixelFormat getSizedFormat(PixelFormat format);
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static bool isSupported();
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static bool isMultiFormatMultiCanvasSupported();
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static bool isFormatSupported(PixelFormat format, bool readable);
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static bool isFormatSupported(PixelFormat format);
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static void resetFormatSupport();
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private:
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struct SupportedFormat
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{
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bool readable = false;
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bool nonreadable = false;
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bool get(bool getreadable)
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{
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return getreadable ? readable : nonreadable;
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}
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void set(bool setreadable, bool val)
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{
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if (setreadable)
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readable = val;
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else
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nonreadable = val;
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}
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};
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GLuint fbo;
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GLuint texture;
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GLuint renderbuffer;
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GLenum status;
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int actualSamples;
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static SupportedFormat supportedFormats[PIXELFORMAT_MAX_ENUM];
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static SupportedFormat checkedFormats[PIXELFORMAT_MAX_ENUM];
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}; // Canvas
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} // opengl
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} // graphics
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} // love
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#endif // LOVE_GRAPHICS_OPENGL_CANVAS_H
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