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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2022 Blender Foundation. All rights reserved. */
/** \file
* \ingroup gpu
*/
#pragma once
#include "MEM_guardedalloc.h"
#include "gpu_storage_buffer_private.hh"
namespace blender {
namespace gpu {
/**
* Implementation of Storage Buffers using OpenGL.
*/
class GLStorageBuf : public StorageBuf {
private:
/** Slot to which this UBO is currently bound. -1 if not bound. */
int slot_ = -1;
/** OpenGL Object handle. */
GLuint ssbo_id_ = 0;
/** Usage type. */
GPUUsageType usage_;
public:
GLStorageBuf(size_t size, GPUUsageType usage, const char *name);
~GLStorageBuf();
void update(const void *data) override;
void bind(int slot) override;
void unbind() override;
void clear(eGPUTextureFormat internal_format, eGPUDataFormat data_format, void *data) override;
void copy_sub(VertBuf *src, uint dst_offset, uint src_offset, uint copy_size) override;
/* Special internal function to bind SSBOs to indirect argument targets. */
void bind_as(GLenum target);
private:
void init();
MEM_CXX_CLASS_ALLOC_FUNCS("GLStorageBuf");
};
} // namespace gpu
} // namespace blender
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