96 lines
2.8 KiB
C
96 lines
2.8 KiB
C
/* $NetBSD: video_subr.c,v 1.1 2000/05/08 21:57:56 uch Exp $ */
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/*-
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* Copyright (c) 2000 UCHIYAMA Yasushi. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <arch/hpcmips/dev/video_subr.h>
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int
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cmap_work_alloc(r, g, b, rgb, cnt)
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u_int8_t **r, **g, **b;
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u_int32_t **rgb;
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int cnt;
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{
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KASSERT(r && g && b && rgb && LEGAL_CLUT_INDEX(cnt - 1));
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*r = malloc(cnt * sizeof(u_int8_t), M_DEVBUF, M_WAITOK);
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*g = malloc(cnt * sizeof(u_int8_t), M_DEVBUF, M_WAITOK);
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*b = malloc(cnt * sizeof(u_int8_t), M_DEVBUF, M_WAITOK);
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*rgb = malloc(cnt * sizeof(u_int32_t), M_DEVBUF, M_WAITOK);
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return (!(*r && *g && *b && *rgb));
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}
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void
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cmap_work_free(r, g, b, rgb)
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u_int8_t *r, *g, *b;
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u_int32_t *rgb;
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{
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if (r)
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free(r, M_DEVBUF);
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if (g)
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free(g, M_DEVBUF);
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if (b)
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free(b, M_DEVBUF);
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if (rgb)
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free(rgb, M_DEVBUF);
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}
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void
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rgb24_compose(rgb24, r, g, b, cnt)
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u_int32_t *rgb24;
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u_int8_t *r, *g, *b;
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int cnt;
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{
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int i;
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KASSERT(rgb24 && r && g && b && LEGAL_CLUT_INDEX(cnt - 1));
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for (i = 0; i < cnt; i++) {
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*rgb24++ = RGB24(r[i], g[i], b[i]);
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}
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}
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void
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rgb24_decompose(rgb24, r, g, b, cnt)
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u_int32_t *rgb24;
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u_int8_t *r, *g, *b;
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int cnt;
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{
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int i;
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KASSERT(rgb24 && r && g && b && LEGAL_CLUT_INDEX(cnt - 1));
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for (i = 0; i < cnt; i++) {
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u_int32_t rgb = *rgb24++;
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*r++ = (rgb >> 16) & 0xff;
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*g++ = (rgb >> 8) & 0xff;
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*b++ = rgb & 0xff;
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}
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}
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