e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
145 lines
4.7 KiB
C
145 lines
4.7 KiB
C
/* SPDX-FileCopyrightText: 2016 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup draw
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*/
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#pragma once
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#include "BLI_sys_types.h" /* for bool and uint */
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct ARegion;
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struct Base;
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struct Depsgraph;
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struct Object;
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struct View3D;
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struct rcti;
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typedef struct SELECTID_ObjectData {
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DrawData dd;
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uint drawn_index;
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bool is_drawn;
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} SELECTID_ObjectData;
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struct ObjectOffsets {
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/* For convenience only. */
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union {
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uint offset;
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uint face_start;
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};
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union {
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uint face;
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uint edge_start;
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};
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union {
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uint edge;
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uint vert_start;
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};
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uint vert;
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};
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typedef struct SELECTID_Context {
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/* All context objects */
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struct Object **objects;
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/* Array with only drawn objects. When a new object is found within the rect,
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* it is added to the end of the list.
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* The list is reset to any viewport or context update. */
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struct Object **objects_drawn;
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struct ObjectOffsets *index_offsets;
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uint objects_len;
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uint objects_drawn_len;
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/** Total number of element indices `index_offsets[object_drawn_len - 1].vert`. */
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uint index_drawn_len;
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short select_mode;
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/* rect is used to check which objects whose indexes need to be drawn. */
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rcti last_rect;
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/* To check for updates. */
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float persmat[4][4];
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bool is_dirty;
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} SELECTID_Context;
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/* `draw_select_buffer.cc` */
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bool DRW_select_buffer_elem_get(uint sel_id, uint *r_elem, uint *r_base_index, char *r_elem_type);
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uint DRW_select_buffer_context_offset_for_object_elem(struct Depsgraph *depsgraph,
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struct Object *object,
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char elem_type);
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/**
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* Main function to read a block of pixels from the select frame buffer.
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*/
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uint *DRW_select_buffer_read(struct Depsgraph *depsgraph,
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struct ARegion *region,
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struct View3D *v3d,
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const rcti *rect,
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uint *r_buf_len);
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/**
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* \param rect: The rectangle to sample indices from (min/max inclusive).
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* \returns a #BLI_bitmap the length of \a bitmap_len or NULL on failure.
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*/
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uint *DRW_select_buffer_bitmap_from_rect(struct Depsgraph *depsgraph,
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struct ARegion *region,
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struct View3D *v3d,
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const struct rcti *rect,
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uint *r_bitmap_len);
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/**
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* \param center: Circle center.
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* \param radius: Circle radius.
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* \param r_bitmap_len: Number of indices in the selection id buffer.
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* \returns a #BLI_bitmap the length of \a r_bitmap_len or NULL on failure.
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*/
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uint *DRW_select_buffer_bitmap_from_circle(struct Depsgraph *depsgraph,
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struct ARegion *region,
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struct View3D *v3d,
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const int center[2],
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int radius,
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uint *r_bitmap_len);
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/**
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* \param poly: The polygon coordinates.
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* \param face_len: Length of the polygon.
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* \param rect: Polygon boundaries.
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* \returns a #BLI_bitmap.
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*/
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uint *DRW_select_buffer_bitmap_from_poly(struct Depsgraph *depsgraph,
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struct ARegion *region,
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struct View3D *v3d,
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const int poly[][2],
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int face_len,
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const struct rcti *rect,
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uint *r_bitmap_len);
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/**
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* Samples a single pixel.
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*/
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uint DRW_select_buffer_sample_point(struct Depsgraph *depsgraph,
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struct ARegion *region,
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struct View3D *v3d,
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const int center[2]);
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/**
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* Find the selection id closest to \a center.
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* \param dist: Use to initialize the distance,
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* when found, this value is set to the distance of the selection that's returned.
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*/
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uint DRW_select_buffer_find_nearest_to_point(struct Depsgraph *depsgraph,
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struct ARegion *region,
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struct View3D *v3d,
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const int center[2],
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uint id_min,
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uint id_max,
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uint *dist);
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void DRW_select_buffer_context_create(struct Base **bases, uint bases_len, short select_mode);
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#ifdef __cplusplus
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}
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#endif
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