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Diffstat (limited to 'source/blender/render/intern/zbuf.h')
-rw-r--r-- | source/blender/render/intern/zbuf.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/source/blender/render/intern/zbuf.h b/source/blender/render/intern/zbuf.h new file mode 100644 index 00000000000..41fa15c594f --- /dev/null +++ b/source/blender/render/intern/zbuf.h @@ -0,0 +1,48 @@ +/* + * 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 render + */ + +#pragma once + +#ifdef __cplusplus +extern "C" { +#endif + +/* span fill in method, is also used to localize data for zbuffering */ +typedef struct ZSpan { + int rectx, recty; /* range for clipping */ + + int miny1, maxy1, miny2, maxy2; /* actual filled in range */ + const float *minp1, *maxp1, *minp2, *maxp2; /* vertex pointers detect min/max range in */ + float *span1, *span2; +} ZSpan; + +void zbuf_alloc_span(struct ZSpan *zspan, int rectx, int recty); +void zbuf_free_span(struct ZSpan *zspan); + +void zspan_scanconvert(struct ZSpan *zspan, + void *handle, + float *v1, + float *v2, + float *v3, + void (*func)(void *, int, int, float, float)); + +#ifdef __cplusplus +} +#endif |