9ab356fe6e
This simplifies code using these functions because of RAII, range based for loops, and the lack of output arguments. Also pass object pointer array as a span in more cases. Pull Request: https://projects.blender.org/blender/blender/pulls/117482
132 lines
4.1 KiB
C++
132 lines
4.1 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 "DNA_ID.h"
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#include "BLI_array.hh"
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#include "BLI_sys_types.h" /* for bool and uint */
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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 RegionView3D;
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struct View3D;
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struct rcti;
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struct SELECTID_ObjectData {
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DrawData dd;
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uint drawn_index;
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/* Used to avoid adding to the pass more than once. */
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bool in_pass;
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/* Used to detect and remove objects that are not included in the array. */
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bool is_drawn;
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};
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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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struct SELECTID_Context {
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/* All context objects */
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blender::Array<Object *> objects;
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blender::Array<ObjectOffsets> index_offsets;
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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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/* To check for updates. */
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float persmat[4][4];
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bool is_dirty(RegionView3D *rv3d);
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};
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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(Depsgraph *depsgraph,
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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(
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Depsgraph *depsgraph, ARegion *region, View3D *v3d, const rcti *rect, 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(
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Depsgraph *depsgraph, ARegion *region, View3D *v3d, const rcti *rect, 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(Depsgraph *depsgraph,
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ARegion *region,
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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(Depsgraph *depsgraph,
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ARegion *region,
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View3D *v3d,
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const int poly[][2],
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int face_len,
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const 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(Depsgraph *depsgraph,
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ARegion *region,
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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(Depsgraph *depsgraph,
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ARegion *region,
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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(Depsgraph *depsgraph,
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blender::Span<Base *> bases,
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short select_mode);
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