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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2016 by Mike Erwin. All rights reserved. */
/** \file
* \ingroup gpu
*
* This interface allow GPU to manage VAOs for multiple context and threads.
*/
#pragma once
#include "GPU_batch.h"
#include "GPU_common.h"
#include "GPU_platform.h"
#ifdef __cplusplus
extern "C" {
#endif
void GPU_backend_init(eGPUBackendType backend);
void GPU_backend_exit(void);
bool GPU_backend_supported(eGPUBackendType type);
eGPUBackendType GPU_backend_get_type(void);
/** Opaque type hiding blender::gpu::Context. */
typedef struct GPUContext GPUContext;
GPUContext *GPU_context_create(void *ghost_window);
/**
* To be called after #GPU_context_active_set(ctx_to_destroy).
*/
void GPU_context_discard(GPUContext *);
/**
* Ctx can be NULL.
*/
void GPU_context_active_set(GPUContext *);
GPUContext *GPU_context_active_get(void);
/* Legacy GPU (Intel HD4000 series) do not support sharing GPU objects between GPU
* contexts. EEVEE/Workbench can create different contexts for image/preview rendering, baking or
* compiling. When a legacy GPU is detected (`GPU_use_main_context_workaround()`) any worker
* threads should use the draw manager opengl context and make sure that they are the only one
* using it by locking the main context using these two functions. */
void GPU_context_main_lock(void);
void GPU_context_main_unlock(void);
/* GPU Begin/end work blocks */
void GPU_render_begin();
void GPU_render_end();
/* For operations which need to run exactly once per frame -- even if there are no render updates. */
void GPU_render_step();
#ifdef __cplusplus
}
#endif
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