c1bc70b711
A lot of files were missing copyright field in the header and
the Blender Foundation contributed to them in a sense of bug
fixing and general maintenance.
This change makes it explicit that those files are at least
partially copyrighted by the Blender Foundation.
Note that this does not make it so the Blender Foundation is
the only holder of the copyright in those files, and developers
who do not have a signed contract with the foundation still
hold the copyright as well.
Another aspect of this change is using SPDX format for the
header. We already used it for the license specification,
and now we state it for the copyright as well, following the
FAQ:
https://reuse.software/faq/
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/* SPDX-FileCopyrightText: 2023 Blender Foundation
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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 render
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*/
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#pragma once
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** Span fill in method, is also used to localize data for Z-buffering. */
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typedef struct ZSpan {
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int rectx, recty; /* range for clipping */
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int miny1, maxy1, miny2, maxy2; /* actual filled in range */
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const float *minp1, *maxp1, *minp2, *maxp2; /* vertex pointers detect min/max range in */
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float *span1, *span2;
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} ZSpan;
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/**
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* Each Z-buffer has coordinates transformed to local rect coordinates, so we can simply clip.
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*/
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void zbuf_alloc_span(struct ZSpan *zspan, int rectx, int recty);
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void zbuf_free_span(struct ZSpan *zspan);
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/**
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* Scan-convert for strand triangles, calls function for each x, y coordinate
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* and gives UV barycentrics and z.
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*/
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void zspan_scanconvert(struct ZSpan *zspan,
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void *handle,
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float *v1,
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float *v2,
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float *v3,
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void (*func)(void *, int, int, float, float));
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#ifdef __cplusplus
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}
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#endif
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