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Diffstat (limited to 'source/blender/makesdna/DNA_curves_types.h')
-rw-r--r-- | source/blender/makesdna/DNA_curves_types.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/source/blender/makesdna/DNA_curves_types.h b/source/blender/makesdna/DNA_curves_types.h new file mode 100644 index 00000000000..c7f31557e48 --- /dev/null +++ b/source/blender/makesdna/DNA_curves_types.h @@ -0,0 +1,108 @@ +/* + * 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. + */ + +/** \file + * \ingroup DNA + */ + +#pragma once + +#include "DNA_ID.h" +#include "DNA_customdata_types.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * A reusable data structure for geometry consisting of many curves. All control point data is + * stored contiguously for better efficiency. Data for each curve is stored as a slice of the + * main #point_data array. + * + * The data structure is meant to be embedded in other data-blocks to allow reusing + * curve-processing algorithms for multiple Blender data-block types. + */ +typedef struct CurvesGeometry { + /** + * A runtime pointer to the "position" attribute data. + * \note This data is owned by #point_data. + */ + float (*position)[3]; + /** + * A runtime pointer to the "radius" attribute data. + * \note This data is owned by #point_data. + */ + float *radius; + + /** + * The start index of each curve in the point data. The size of each curve can be calculated by + * subtracting the offset from the next offset. That is valid even for the last curve because + * this array is allocated with a length one larger than the number of splines. + * + * \note This is *not* stored in #CustomData because its size is one larger than #curve_data. + */ + int *offsets; + + /** + * All attributes stored on control points (#ATTR_DOMAIN_POINT). + */ + CustomData point_data; + + /** + * All attributes stored on curves (#ATTR_DOMAIN_CURVE). + */ + CustomData curve_data; + + /** + * The total number of control points in all curves. + */ + int point_size; + /** + * The number of curves in the data-block. + */ + int curve_size; +} CurvesGeometry; + +typedef struct Curves { + ID id; + /* Animation data (must be immediately after id). */ + struct AnimData *adt; + + CurvesGeometry geometry; + + int flag; + int attributes_active_index; + + /* Materials. */ + struct Material **mat; + short totcol; + short _pad2[3]; + + /* Draw Cache. */ + void *batch_cache; +} Curves; + +/* Curves.flag */ +enum { + HA_DS_EXPAND = (1 << 0), +}; + +/* Only one material supported currently. */ +#define CURVES_MATERIAL_NR 1 + +#ifdef __cplusplus +} +#endif |