443 lines
10 KiB
C
443 lines
10 KiB
C
/* $NetBSD: splash.c,v 1.11 2011/02/08 23:28:24 jmcneill Exp $ */
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/*-
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* Copyright (c) 2006 Jared D. McNeill <jmcneill@invisible.ca>
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* 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: splash.c,v 1.11 2011/02/08 23:28:24 jmcneill Exp $");
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#include "opt_splash.h"
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/* XXX */
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#define NSPLASH8 1
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#define NSPLASH16 1
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#define NSPLASH32 1
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/systm.h>
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#include <sys/types.h>
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#include <sys/kernel.h>
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#include <sys/kthread.h>
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#include <dev/splash/splash.h>
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#include <dev/stbi/stbi.h>
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#ifdef SPLASHSCREEN
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static struct {
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const u_char *data;
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size_t datalen;
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} splash_image = { NULL, 0 };
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#define SPLASH_INDEX(r, g, b) \
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((((r) >> 6) << 4) | (((g) >> 6) << 2) | (((b) >> 6) << 0))
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static uint8_t splash_palette[SPLASH_CMAP_SIZE][3] = {
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{ 0x00, 0x00, 0x00 },
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{ 0x00, 0x00, 0x55 },
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{ 0x00, 0x00, 0xaa },
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{ 0x00, 0x00, 0xff },
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{ 0x00, 0x55, 0x00 },
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{ 0x00, 0x55, 0x55 },
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{ 0x00, 0x55, 0xaa },
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{ 0x00, 0x55, 0xff },
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{ 0x00, 0xaa, 0x00 },
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{ 0x00, 0xaa, 0x55 },
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{ 0x00, 0xaa, 0xaa },
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{ 0x00, 0xaa, 0xff },
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{ 0x00, 0xff, 0x00 },
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{ 0x00, 0xff, 0x55 },
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{ 0x00, 0xff, 0xaa },
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{ 0x00, 0xff, 0xff },
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{ 0x55, 0x00, 0x00 },
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{ 0x55, 0x00, 0x55 },
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{ 0x55, 0x00, 0xaa },
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{ 0x55, 0x00, 0xff },
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{ 0x55, 0x55, 0x00 },
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{ 0x55, 0x55, 0x55 },
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{ 0x55, 0x55, 0xaa },
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{ 0x55, 0x55, 0xff },
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{ 0x55, 0xaa, 0x00 },
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{ 0x55, 0xaa, 0x55 },
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{ 0x55, 0xaa, 0xaa },
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{ 0x55, 0xaa, 0xff },
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{ 0x55, 0xff, 0x00 },
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{ 0x55, 0xff, 0x55 },
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{ 0x55, 0xff, 0xaa },
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{ 0x55, 0xff, 0xff },
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{ 0xaa, 0x00, 0x00 },
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{ 0xaa, 0x00, 0x55 },
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{ 0xaa, 0x00, 0xaa },
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{ 0xaa, 0x00, 0xff },
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{ 0xaa, 0x55, 0x00 },
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{ 0xaa, 0x55, 0x55 },
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{ 0xaa, 0x55, 0xaa },
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{ 0xaa, 0x55, 0xff },
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{ 0xaa, 0xaa, 0x00 },
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{ 0xaa, 0xaa, 0x55 },
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{ 0xaa, 0xaa, 0xaa },
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{ 0xaa, 0xaa, 0xff },
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{ 0xaa, 0xff, 0x00 },
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{ 0xaa, 0xff, 0x55 },
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{ 0xaa, 0xff, 0xaa },
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{ 0xaa, 0xff, 0xff },
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{ 0xff, 0x00, 0x00 },
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{ 0xff, 0x00, 0x55 },
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{ 0xff, 0x00, 0xaa },
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{ 0xff, 0x00, 0xff },
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{ 0xff, 0x55, 0x00 },
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{ 0xff, 0x55, 0x55 },
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{ 0xff, 0x55, 0xaa },
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{ 0xff, 0x55, 0xff },
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{ 0xff, 0xaa, 0x00 },
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{ 0xff, 0xaa, 0x55 },
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{ 0xff, 0xaa, 0xaa },
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{ 0xff, 0xaa, 0xff },
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{ 0xff, 0xff, 0x00 },
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{ 0xff, 0xff, 0x55 },
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{ 0xff, 0xff, 0xaa },
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{ 0xff, 0xff, 0xff },
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};
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#if NSPLASH8 > 0
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static void splash_render8(struct splash_info *, const char *, int,
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int, int, int, int);
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#endif
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#if NSPLASH16 > 0
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static void splash_render16(struct splash_info *, const char *, int,
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int, int, int, int);
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#endif
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#if NSPLASH32 > 0
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static void splash_render32(struct splash_info *, const char *, int,
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int, int, int, int);
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#endif
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int
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splash_setimage(const void *imgdata, size_t imgdatalen)
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{
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if (splash_image.data != NULL) {
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aprint_debug("WARNING: %s: already initialized\n", __func__);
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return EBUSY;
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}
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aprint_verbose("%s: splash image @ %p, %zu bytes\n",
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__func__, imgdata, imgdatalen);
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splash_image.data = imgdata;
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splash_image.datalen = imgdatalen;
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return 0;
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}
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int
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splash_get_cmap(int index, uint8_t *r, uint8_t *g, uint8_t *b)
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{
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if (index < SPLASH_CMAP_OFFSET ||
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index >= SPLASH_CMAP_OFFSET + SPLASH_CMAP_SIZE)
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return ERANGE;
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*r = splash_palette[index - SPLASH_CMAP_OFFSET][0];
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*g = splash_palette[index - SPLASH_CMAP_OFFSET][1];
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*b = splash_palette[index - SPLASH_CMAP_OFFSET][2];
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return 0;
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}
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int
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splash_render(struct splash_info *si, int flg)
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{
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char *data = NULL;
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int xoff, yoff, width, height, comp;
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int error = 0;
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if (splash_image.data == NULL) {
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aprint_error("WARNING: %s: not initialized\n", __func__);
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return ENXIO;
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}
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data = stbi_load_from_memory(splash_image.data,
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splash_image.datalen, &width, &height, &comp, STBI_rgb);
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if (data == NULL) {
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aprint_error("WARNING: couldn't load splash image: %s\n",
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stbi_failure_reason());
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return EINVAL;
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}
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aprint_debug("%s: splash loaded, width %d height %d comp %d\n",
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__func__, width, height, comp);
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/* XXX */
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if (flg & SPLASH_F_CENTER) {
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xoff = (si->si_width - width) / 2;
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yoff = (si->si_height - height) / 2;
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} else
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xoff = yoff = 0;
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switch (si->si_depth) {
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#if NSPLASH8 > 0
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case 8:
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splash_render8(si, data, xoff, yoff, width, height, flg);
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break;
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#endif
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#if NSPLASH16 > 0
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case 16:
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splash_render16(si, data, xoff, yoff, width, height, flg);
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break;
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#endif
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#if NSPLASH32 > 0
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case 32:
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splash_render32(si, data, xoff, yoff, width, height, flg);
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break;
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#endif
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default:
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aprint_error("WARNING: Splash not supported at %dbpp\n",
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si->si_depth);
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error = EINVAL;
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}
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if (data)
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stbi_image_free(data);
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return error;
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}
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#if NSPLASH8 > 0
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static void
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splash_render8(struct splash_info *si, const char *data, int xoff, int yoff,
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int swidth, int sheight, int flg)
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{
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const char *d;
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u_char *fb, *p;
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u_char pix[3];
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int x, y, i;
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int filled;
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fb = si->si_bits;
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if (flg & SPLASH_F_FILL)
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filled = 0;
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else
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filled = 1;
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d = data;
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fb += xoff + yoff * si->si_stride;
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for (y = 0; y < sheight; y++) {
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for (x = 0; x < swidth; x++) {
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pix[0] = *d++;
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pix[1] = *d++;
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pix[2] = *d++;
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if (filled == 0) {
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p = si->si_bits;
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i = 0;
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while (i < si->si_height*si->si_stride) {
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p[i] = SPLASH_INDEX(
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pix[0], pix[1], pix[2]) +
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SPLASH_CMAP_OFFSET;
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i++;
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}
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filled = 1;
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}
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fb[x] = SPLASH_INDEX(pix[0], pix[1], pix[2]) +
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SPLASH_CMAP_OFFSET;
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}
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fb += si->si_width;
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}
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/* If we've just written to the shadow fb, copy it to the display */
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if (si->si_hwbits) {
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if (flg & SPLASH_F_FILL) {
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memcpy(si->si_hwbits, si->si_bits,
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si->si_height*si->si_width);
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} else {
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u_char *rp, *hrp;
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rp = si->si_bits + xoff + (yoff * si->si_width);
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hrp = si->si_hwbits + xoff + (yoff * si->si_width);
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for (y = 0; y < sheight; y++) {
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memcpy(hrp, rp, swidth);
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rp += si->si_stride;
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hrp += si->si_stride;
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}
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}
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}
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return;
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}
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#endif /* !NSPLASH8 > 0 */
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#if NSPLASH16 > 0
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#define RGBTO16(b, o, x, c) \
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do { \
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uint16_t *_ptr = (uint16_t *)(&(b)[(o)]); \
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*_ptr = (((c)[(x)*3+0] / 8) << 11) | \
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(((c)[(x)*3+1] / 4) << 5) | \
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(((c)[(x)*3+2] / 8) << 0); \
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} while (0)
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static void
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splash_render16(struct splash_info *si, const char *data, int xoff, int yoff,
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int swidth, int sheight, int flg)
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{
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const char *d;
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u_char *fb, *p;
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u_char pix[3];
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int x, y, i;
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int filled;
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fb = si->si_bits;
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if (flg & SPLASH_F_FILL)
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filled = 0;
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else
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filled = 1;
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d = data;
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fb += xoff * 2 + yoff * si->si_stride;
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for (y = 0; y < sheight; y++) {
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for (x = 0; x < swidth; x++) {
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pix[0] = *d++;
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pix[1] = *d++;
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pix[2] = *d++;
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if (filled == 0) {
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p = si->si_bits;
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i = 0;
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while (i < si->si_height*si->si_stride) {
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RGBTO16(p, i, 0, pix);
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i += 2;
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}
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filled = 1;
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}
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RGBTO16(fb, x*2, 0, pix);
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}
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fb += si->si_stride;
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}
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/* If we've just written to the shadow fb, copy it to the display */
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if (si->si_hwbits) {
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if (flg & SPLASH_F_FILL) {
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memcpy(si->si_hwbits, si->si_bits,
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si->si_height*si->si_stride);
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} else {
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u_char *rp, *hrp;
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rp = si->si_bits + (xoff * 2) + (yoff * si->si_stride);
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hrp = si->si_hwbits + (xoff * 2) +
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(yoff * si->si_stride);
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for (y = 0; y < sheight; y++) {
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memcpy(hrp, rp, swidth * 2);
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rp += si->si_stride;
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hrp += si->si_stride;
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}
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}
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}
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return;
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}
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#undef RGBTO16
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#endif /* !NSPLASH16 > 0 */
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#if NSPLASH32 > 0
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static void
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splash_render32(struct splash_info *si, const char *data, int xoff, int yoff,
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int swidth, int sheight, int flg)
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{
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const char *d;
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u_char *fb, *p;
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u_char pix[3];
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int x, y, i;
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int filled;
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fb = si->si_bits;
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if (flg & SPLASH_F_FILL)
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filled = 0;
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else
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filled = 1;
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d = data;
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fb += xoff * 4 + yoff * si->si_stride;
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for (y = 0; y < sheight; y++) {
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for (x = 0; x < swidth; x++) {
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pix[0] = *d++;
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pix[1] = *d++;
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pix[2] = *d++;
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if (filled == 0) {
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p = si->si_bits;
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i = 0;
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while (i < si->si_height*si->si_stride) {
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p[i++] = pix[2];
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p[i++] = pix[1];
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p[i++] = pix[0];
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p[i++] = 0;
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}
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filled = 1;
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}
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fb[x*4+0] = pix[2];
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fb[x*4+1] = pix[1];
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fb[x*4+2] = pix[0];
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fb[x*4+3] = 0;
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}
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fb += si->si_stride;
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}
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/* If we've just written to the shadow fb, copy it to the display */
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if (si->si_hwbits) {
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if (flg & SPLASH_F_FILL) {
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memcpy(si->si_hwbits, si->si_bits,
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si->si_height*si->si_stride);
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} else {
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u_char *rp, *hrp;
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rp = si->si_bits + (xoff * 4) + (yoff * si->si_stride);
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hrp = si->si_hwbits + (xoff * 4) +
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(yoff * si->si_stride);
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for (y = 0; y < sheight; y++) {
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memcpy(hrp, rp, swidth * 4);
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rp += si->si_stride;
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hrp += si->si_stride;
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}
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}
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}
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return;
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}
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#endif /* !NSPLASH32 > 0 */
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#endif /* !SPLASHSCREEN */
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