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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
* \ingroup draw
*/
#ifndef __DRW_SELECT_BUFFER_H__
#define __DRW_SELECT_BUFFER_H__
#include "BLI_sys_types.h" /* for bool and uint */
struct ARegion;
struct Base;
struct Depsgraph;
struct Object;
struct View3D;
struct ViewLayer;
struct rcti;
struct BaseOffset {
/* For convenience only. */
union {
uint offset;
uint face_start;
};
union {
uint face;
uint edge_start;
};
union {
uint edge;
uint vert_start;
};
uint vert;
};
struct SELECTID_Context {
struct GPUFrameBuffer *framebuffer_select_id;
struct GPUTexture *texture_u32;
struct BaseOffset *index_offsets;
uint objects_len;
uint last_object_drawn;
/** Total number of items `base_array_index_offsets[bases_len - 1].vert`. */
uint last_index_drawn;
short select_mode;
};
/* select_buffer.c */
void DRW_select_buffer_context_create(struct Base **bases,
const uint bases_len,
short select_mode);
bool DRW_select_buffer_elem_get(const uint sel_id,
uint *r_elem,
uint *r_base_index,
char *r_elem_type);
uint DRW_select_buffer_context_offset_for_object_elem(const uint base_index, char elem_type);
uint *DRW_select_buffer_read(const struct rcti *rect, uint *r_buf_len);
void DRW_draw_select_id_object(struct Depsgraph *depsgraph,
struct ViewLayer *view_layer,
struct ARegion *ar,
struct View3D *v3d,
struct Object *ob,
short select_mode);
uint *DRW_select_buffer_bitmap_from_rect(const struct rcti *rect, uint *r_bitmap_len);
uint *DRW_select_buffer_bitmap_from_circle(const int center[2],
const int radius,
uint *r_bitmap_len);
uint *DRW_select_buffer_bitmap_from_poly(const int poly[][2],
const int poly_len,
const struct rcti *rect);
uint DRW_select_buffer_sample_point(const int center[2]);
uint DRW_select_buffer_find_nearest_to_point(const int center[2],
const uint id_min,
const uint id_max,
uint *dist);
/* select_engine.c */
struct SELECTID_Context *DRW_select_engine_context_get(void);
#endif /* __DRW_SELECT_BUFFER_H__ */
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