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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.
*
* Copyright 2016, Blender Foundation.
*/
/** \file draw_instance_data.h
* \ingroup draw
*/
#ifndef __DRAW_INSTANCE_DATA_H__
#define __DRAW_INSTANCE_DATA_H__
#include "BLI_compiler_attrs.h"
#include "BLI_sys_types.h"
#include "GPU_batch.h"
#define MAX_INSTANCE_DATA_SIZE 64 /* Can be adjusted for more */
typedef struct DRWInstanceData DRWInstanceData;
typedef struct DRWInstanceDataList DRWInstanceDataList;
struct DRWShadingGroup;
void *DRW_instance_data_next(DRWInstanceData *idata);
DRWInstanceData *DRW_instance_data_request(
DRWInstanceDataList *idatalist, uint attr_size);
void DRW_batching_buffer_request(
DRWInstanceDataList *idatalist, GPUVertFormat *format, GPUPrimType type, struct DRWShadingGroup *shgroup,
GPUBatch **r_batch, GPUVertBuf **r_vert);
void DRW_instancing_buffer_request(
DRWInstanceDataList *idatalist, GPUVertFormat *format, GPUBatch *instance, struct DRWShadingGroup *shgroup,
GPUBatch **r_batch, GPUVertBuf **r_vert);
/* Upload all instance data to the GPU as soon as possible. */
void DRW_instance_buffer_finish(DRWInstanceDataList *idatalist);
void DRW_instance_data_list_reset(DRWInstanceDataList *idatalist);
void DRW_instance_data_list_free_unused(DRWInstanceDataList *idatalist);
void DRW_instance_data_list_resize(DRWInstanceDataList *idatalist);
#endif /* __DRAW_INSTANCE_DATA_H__ */
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