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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 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"
#ifdef __cplusplus
extern "C" {
#endif
typedef enum eGPUBackendType {
GPU_BACKEND_NONE = 0,
GPU_BACKEND_OPENGL,
} eGPUBackendType;
void GPU_backend_init(eGPUBackendType backend);
void GPU_backend_exit(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);
#ifdef __cplusplus
}
#endif
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