mirror of
https://github.com/love2d/love.git
synced 2026-08-16 08:11:02 +02:00
Alex Szpakowski
86 lines
2.3 KiB
C++
86 lines
2.3 KiB
C++
/**
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* Copyright (c) 2006-2022 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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#pragma once
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// LOVE
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#include "common/config.h"
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#include "common/Range.h"
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#include "graphics/Buffer.h"
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#include "graphics/Volatile.h"
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// OpenGL
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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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class Graphics;
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namespace opengl
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{
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class Buffer final : public love::graphics::Buffer, public Volatile
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{
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public:
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Buffer(love::graphics::Graphics *gfx, const Settings &settings, const std::vector<DataDeclaration> &format, const void *data, size_t size, size_t arraylength);
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virtual ~Buffer();
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// Implements Volatile.
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bool loadVolatile() override;
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void unloadVolatile() override;
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void *map(MapType map, size_t offset, size_t size) override;
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void unmap(size_t usedoffset, size_t usedsize) override;
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void fill(size_t offset, size_t size, const void *data) override;
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void copyTo(love::graphics::Buffer *dest, size_t sourceoffset, size_t destoffset, size_t size) override;
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ptrdiff_t getHandle() const override { return buffer; };
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ptrdiff_t getTexelBufferHandle() const override { return texture; };
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private:
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bool load(const void *initialdata);
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bool supportsOrphan() const;
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BufferUsage mapUsage = BUFFERUSAGE_VERTEX;
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GLenum target = 0;
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// The buffer object identifier. Assigned by OpenGL.
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GLuint buffer = 0;
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// Used for Texel Buffer types.
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GLuint texture = 0;
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// A pointer to mapped memory.
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char *memoryMap = nullptr;
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bool ownsMemoryMap = false;
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Range mappedRange;
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}; // Buffer
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} // opengl
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} // graphics
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} // love
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