DRW_select_buffer.h File Reference

#include "BLI_sys_types.h"

Go to the source code of this file.

Classes
struct	SELECTID_ObjectData
struct	ObjectOffsets
struct	SELECTID_Context

Typedefs
typedef struct SELECTID_ObjectData	SELECTID_ObjectData
typedef struct SELECTID_Context	SELECTID_Context

Functions
bool	DRW_select_buffer_elem_get (uint sel_id, uint *r_elem, uint *r_base_index, char *r_elem_type)
uint	DRW_select_buffer_context_offset_for_object_elem (struct Depsgraph *depsgraph, struct Object *object, char elem_type)
uint *	DRW_select_buffer_read (struct Depsgraph *depsgraph, struct ARegion *region, struct View3D *v3d, const rcti *rect, uint *r_buf_len)
uint *	DRW_select_buffer_bitmap_from_rect (struct Depsgraph *depsgraph, struct ARegion *region, struct View3D *v3d, const struct rcti *rect, uint *r_bitmap_len)
uint *	DRW_select_buffer_bitmap_from_circle (struct Depsgraph *depsgraph, struct ARegion *region, struct View3D *v3d, const int center[2], int radius, uint *r_bitmap_len)
uint *	DRW_select_buffer_bitmap_from_poly (struct Depsgraph *depsgraph, struct ARegion *region, struct View3D *v3d, const int poly[][2], int poly_len, const struct rcti *rect, uint *r_bitmap_len)
uint	DRW_select_buffer_sample_point (struct Depsgraph *depsgraph, struct ARegion *region, struct View3D *v3d, const int center[2])
uint	DRW_select_buffer_find_nearest_to_point (struct Depsgraph *depsgraph, struct ARegion *region, struct View3D *v3d, const int center[2], uint id_min, uint id_max, uint *dist)
void	DRW_select_buffer_context_create (struct Base **bases, uint bases_len, short select_mode)

Typedef Documentation

SELECTID_Context

typedef struct SELECTID_Context SELECTID_Context

SELECTID_ObjectData

typedef struct SELECTID_ObjectData SELECTID_ObjectData

Function Documentation

DRW_select_buffer_bitmap_from_circle()

uint* DRW_select_buffer_bitmap_from_circle	(	struct Depsgraph *	depsgraph,
		struct ARegion *	region,
		struct View3D *	v3d,
		const int	center[2],
		int	radius,
		uint *	r_bitmap_len
	)

Parameters

center	Circle center.
radius	Circle radius.
r_bitmap_len	Number of indices in the selection id buffer.

Returns

a BLI_bitmap the length of r_bitmap_len or NULL on failure.

Definition at line 148 of file draw_select_buffer.c.

References BLI_assert, BLI_BITMAP_ENABLE, BLI_BITMAP_NEW, center, depsgraph, DRW_select_buffer_read(), DRW_select_engine_context_get(), SELECTID_Context::index_drawn_len, MEM_freeN, NULL, and rcti::xmin.

Referenced by mesh_circle_select(), paint_facesel_circle_select(), and paint_vertsel_circle_select().

DRW_select_buffer_bitmap_from_poly()

uint* DRW_select_buffer_bitmap_from_poly	(	struct Depsgraph *	depsgraph,
		struct ARegion *	region,
		struct View3D *	v3d,
		const int	poly[][2],
		int	poly_len,
		const struct rcti *	rect,
		uint *	r_bitmap_len
	)

Parameters

poly	The polygon coordinates.
poly_len	Length of the polygon.
rect	Polygon boundaries.

Returns

a BLI_bitmap.

Referenced by do_lasso_select_mesh(), do_lasso_select_paintface(), and do_lasso_select_paintvert().

DRW_select_buffer_bitmap_from_rect()

uint* DRW_select_buffer_bitmap_from_rect	(	struct Depsgraph *	depsgraph,
		struct ARegion *	region,
		struct View3D *	v3d,
		const struct rcti *	rect,
		uint *	r_bitmap_len
	)

Parameters

rect	The rectangle to sample indices from (min/max inclusive).

Returns

a BLI_bitmap the length of bitmap_len or NULL on failure.

Referenced by do_mesh_box_select(), do_paintface_box_select(), and do_paintvert_box_select().

DRW_select_buffer_context_create()

void DRW_select_buffer_context_create	(	struct Base **	bases,
		uint	bases_len,
		short	select_mode
	)

Definition at line 460 of file draw_select_buffer.c.

References DRW_select_engine_context_get(), SELECTID_Context::index_offsets, MEM_reallocN, Base::object, SELECTID_Context::objects, SELECTID_Context::objects_drawn, SELECTID_Context::objects_len, SELECTID_Context::persmat, Object::runtime, Object_Runtime::select_id, and SELECTID_Context::select_mode.

Referenced by EDBM_edge_find_nearest_ex(), EDBM_face_find_nearest_ex(), EDBM_vert_find_nearest_ex(), editselect_buf_cache_init(), and validate_object_select_id().

DRW_select_buffer_context_offset_for_object_elem()

uint DRW_select_buffer_context_offset_for_object_elem	(	struct Depsgraph *	depsgraph,
		struct Object *	object,
		char	elem_type
	)

Definition at line 424 of file draw_select_buffer.c.

References BLI_assert, DEG_get_evaluated_object(), depsgraph, draw_engine_select_type, SELECTID_ObjectData::drawn_index, DRW_drawdata_get(), DRW_select_engine_context_get(), ObjectOffsets::edge_start, ObjectOffsets::face_start, Object::id, SELECTID_Context::index_offsets, SELECTID_ObjectData::is_drawn, SCE_SELECT_EDGE, SCE_SELECT_FACE, SCE_SELECT_VERTEX, and ObjectOffsets::vert_start.

Referenced by do_lasso_select_mesh(), do_mesh_box_select(), edbm_backbuf_check_and_select_edges(), edbm_backbuf_check_and_select_faces(), and edbm_backbuf_check_and_select_verts().

DRW_select_buffer_elem_get()

bool DRW_select_buffer_elem_get	(	uint	sel_id,
		uint *	r_elem,
		uint *	r_base_index,
		char *	r_elem_type
	)

Definition at line 375 of file draw_select_buffer.c.

References DEG_get_original_object(), DRW_select_engine_context_get(), ObjectOffsets::edge, ObjectOffsets::edge_start, ObjectOffsets::face, ObjectOffsets::face_start, SELECTID_Context::index_offsets, SELECTID_Context::objects_drawn, SELECTID_Context::objects_drawn_len, Object::runtime, SCE_SELECT_EDGE, SCE_SELECT_FACE, SCE_SELECT_VERTEX, Object_Runtime::select_id, ObjectOffsets::vert, and ObjectOffsets::vert_start.

Referenced by edbm_select_id_bm_elem_get().

DRW_select_buffer_find_nearest_to_point()

uint DRW_select_buffer_find_nearest_to_point	(	struct Depsgraph *	depsgraph,
		struct ARegion *	region,
		struct View3D *	v3d,
		const int	center[2],
		uint	id_min,
		uint	id_max,
		uint *	dist
	)

Find the selection id closest to center.

Parameters

dist	Use to initialize the distance, when found, this value is set to the distance of the selection that's returned.

Definition at line 325 of file draw_select_buffer.c.

References blender::math::abs(), BLI_array_iter_spiral_square, BLI_rcti_init_pt_radius(), BLI_rcti_size_x(), center, data, depsgraph, DRW_select_buffer_read(), height, SelectReadData::id_max, SelectReadData::id_min, MEM_freeN, NULL, offset, select_buffer_test_fn(), width, rcti::xmax, and rcti::ymax.

Referenced by ED_mesh_pick_face(), ED_mesh_pick_vert(), EDBM_edge_find_nearest_ex(), EDBM_face_find_nearest_ex(), and EDBM_vert_find_nearest_ex().

DRW_select_buffer_read()

uint* DRW_select_buffer_read	(	struct Depsgraph *	depsgraph,
		struct ARegion *	region,
		struct View3D *	v3d,
		const rcti *	rect,
		uint *	r_buf_len
	)

Main function to read a block of pixels from the select frame buffer.

Definition at line 35 of file draw_select_buffer.c.

References BLI_assert, BLI_rcti_compare(), BLI_rcti_isect(), BLI_rcti_size_x(), BLI_rcti_size_y(), depsgraph, DRW_draw_select_id(), DRW_engine_select_framebuffer_get(), DRW_engine_select_texture_get(), DRW_opengl_context_disable(), DRW_opengl_context_enable(), DRW_select_engine_context_get(), GPU_DATA_UINT, GPU_framebuffer_bind(), GPU_framebuffer_read_color(), GPU_framebuffer_restore(), GPU_select_buffer_stride_realign(), GPU_texture_height(), GPU_texture_width(), SELECTID_Context::index_drawn_len, MEM_mallocN, NULL, r, ARegion::winx, ARegion::winy, rcti::xmin, and rcti::ymin.

Referenced by DRW_select_buffer_bitmap_from_circle(), DRW_select_buffer_bitmap_from_poly(), DRW_select_buffer_bitmap_from_rect(), DRW_select_buffer_find_nearest_to_point(), and DRW_select_buffer_sample_point().

DRW_select_buffer_sample_point()

uint DRW_select_buffer_sample_point	(	struct Depsgraph *	depsgraph,
		struct ARegion *	region,
		struct View3D *	v3d,
		const int	center[2]
	)

Samples a single pixel.

Definition at line 280 of file draw_select_buffer.c.

References BLI_assert, center, depsgraph, DRW_select_buffer_read(), MEM_freeN, ret, and rcti::xmin.

Referenced by ED_mesh_pick_face(), ED_mesh_pick_vert(), EDBM_face_find_nearest_ex(), and imapaint_pick_face().