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75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
/*
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* Copyright (c) 2020 - 2024 the ThorVG project. All rights reserved.
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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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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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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 THE
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* SOFTWARE.
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*/
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#ifndef _TVG_GL_GPU_BUFFER_H_
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#define _TVG_GL_GPU_BUFFER_H_
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#include <memory>
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#include "tvgGlCommon.h"
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class GlGpuBuffer
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{
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public:
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enum class Target
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{
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ARRAY_BUFFER = GL_ARRAY_BUFFER,
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ELEMENT_ARRAY_BUFFER = GL_ELEMENT_ARRAY_BUFFER,
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UNIFORM_BUFFER = GL_UNIFORM_BUFFER,
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};
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GlGpuBuffer();
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~GlGpuBuffer();
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void updateBufferData(Target target, uint32_t size, const void* data);
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void bind(Target target);
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void unbind(Target target);
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uint32_t getBufferId() { return mGlBufferId; }
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private:
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uint32_t mGlBufferId = 0;
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};
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class GlStageBuffer {
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public:
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GlStageBuffer();
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~GlStageBuffer();
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uint32_t push(void* data, uint32_t size, bool alignGpuOffset = false);
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void flushToGPU();
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void bind();
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void unbind();
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GLuint getBufferId();
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private:
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void alignOffset(uint32_t size);
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private:
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GLuint mVao = 0;
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unique_ptr<GlGpuBuffer> mGpuBuffer = {};
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Array<uint8_t> mStageBuffer = {};
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};
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#endif /* _TVG_GL_GPU_BUFFER_H_ */
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