/* $NetBSD: splash.c,v 1.13 2016/04/25 22:26:50 khorben Exp $ */
/*-
* Copyright (c) 2006 Jared D. McNeill <jmcneill@invisible.ca>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: splash.c,v 1.13 2016/04/25 22:26:50 khorben Exp $");
#include "opt_splash.h"
/* XXX */
#define NSPLASH8 1
#define NSPLASH16 1
#define NSPLASH32 1
#include <sys/param.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <sys/types.h>
#include <sys/kernel.h>
#include <sys/kthread.h>
#include <dev/splash/splash.h>
#include <dev/stbi/stbi.h>
#ifdef SPLASHSCREEN
static struct {
const u_char *data;
size_t datalen;
} splash_image = { NULL, 0 };
#define SPLASH_INDEX(r, g, b) \
((((r) >> 6) << 4) | (((g) >> 6) << 2) | (((b) >> 6) << 0))
static uint8_t splash_palette[SPLASH_CMAP_SIZE][3] = {
{ 0x00, 0x00, 0x00 },
{ 0x00, 0x00, 0x55 },
{ 0x00, 0x00, 0xaa },
{ 0x00, 0x00, 0xff },
{ 0x00, 0x55, 0x00 },
{ 0x00, 0x55, 0x55 },
{ 0x00, 0x55, 0xaa },
{ 0x00, 0x55, 0xff },
{ 0x00, 0xaa, 0x00 },
{ 0x00, 0xaa, 0x55 },
{ 0x00, 0xaa, 0xaa },
{ 0x00, 0xaa, 0xff },
{ 0x00, 0xff, 0x00 },
{ 0x00, 0xff, 0x55 },
{ 0x00, 0xff, 0xaa },
{ 0x00, 0xff, 0xff },
{ 0x55, 0x00, 0x00 },
{ 0x55, 0x00, 0x55 },
{ 0x55, 0x00, 0xaa },
{ 0x55, 0x00, 0xff },
{ 0x55, 0x55, 0x00 },
{ 0x55, 0x55, 0x55 },
{ 0x55, 0x55, 0xaa },
{ 0x55, 0x55, 0xff },
{ 0x55, 0xaa, 0x00 },
{ 0x55, 0xaa, 0x55 },
{ 0x55, 0xaa, 0xaa },
{ 0x55, 0xaa, 0xff },
{ 0x55, 0xff, 0x00 },
{ 0x55, 0xff, 0x55 },
{ 0x55, 0xff, 0xaa },
{ 0x55, 0xff, 0xff },
{ 0xaa, 0x00, 0x00 },
{ 0xaa, 0x00, 0x55 },
{ 0xaa, 0x00, 0xaa },
{ 0xaa, 0x00, 0xff },
{ 0xaa, 0x55, 0x00 },
{ 0xaa, 0x55, 0x55 },
{ 0xaa, 0x55, 0xaa },
{ 0xaa, 0x55, 0xff },
{ 0xaa, 0xaa, 0x00 },
{ 0xaa, 0xaa, 0x55 },
{ 0xaa, 0xaa, 0xaa },
{ 0xaa, 0xaa, 0xff },
{ 0xaa, 0xff, 0x00 },
{ 0xaa, 0xff, 0x55 },
{ 0xaa, 0xff, 0xaa },
{ 0xaa, 0xff, 0xff },
{ 0xff, 0x00, 0x00 },
{ 0xff, 0x00, 0x55 },
{ 0xff, 0x00, 0xaa },
{ 0xff, 0x00, 0xff },
{ 0xff, 0x55, 0x00 },
{ 0xff, 0x55, 0x55 },
{ 0xff, 0x55, 0xaa },
{ 0xff, 0x55, 0xff },
{ 0xff, 0xaa, 0x00 },
{ 0xff, 0xaa, 0x55 },
{ 0xff, 0xaa, 0xaa },
{ 0xff, 0xaa, 0xff },
{ 0xff, 0xff, 0x00 },
{ 0xff, 0xff, 0x55 },
{ 0xff, 0xff, 0xaa },
{ 0xff, 0xff, 0xff },
};
#if NSPLASH8 > 0
static void splash_render8(struct splash_info *, const char *, int,
int, int, int, int);
#endif
#if NSPLASH16 > 0
static void splash_render16(struct splash_info *, const char *, int,
int, int, int, int);
#endif
#if NSPLASH32 > 0
static void splash_render32(struct splash_info *, const char *, int,
int, int, int, int);
#endif
int
splash_setimage(const void *imgdata, size_t imgdatalen)
{
if (splash_image.data != NULL) {
aprint_debug("WARNING: %s: already initialized\n", __func__);
return EBUSY;
}
aprint_verbose("%s: splash image @ %p, %zu bytes\n",
__func__, imgdata, imgdatalen);
splash_image.data = imgdata;
splash_image.datalen = imgdatalen;
return 0;
}
int
splash_get_cmap(int index, uint8_t *r, uint8_t *g, uint8_t *b)
{
if (index < SPLASH_CMAP_OFFSET ||
index >= SPLASH_CMAP_OFFSET + SPLASH_CMAP_SIZE)
return ERANGE;
*r = splash_palette[index - SPLASH_CMAP_OFFSET][0];
*g = splash_palette[index - SPLASH_CMAP_OFFSET][1];
*b = splash_palette[index - SPLASH_CMAP_OFFSET][2];
return 0;
}
int
splash_render(struct splash_info *si, int flg)
{
char *data = NULL;
int xoff, yoff, width, height, comp;
int error = 0;
if (splash_image.data == NULL) {
aprint_error("WARNING: %s: not initialized\n", __func__);
return ENXIO;
}
data = stbi_load_from_memory(splash_image.data,
splash_image.datalen, &width, &height, &comp, STBI_rgb);
if (data == NULL) {
aprint_error("WARNING: couldn't load splash image: %s\n",
stbi_failure_reason());
return EINVAL;
}
aprint_debug("%s: splash loaded, width %d height %d comp %d\n",
__func__, width, height, comp);
if ((width > si->si_width) || (height > si->si_height)) {
aprint_error(
"WARNING: splash size (%dx%d) too big for framebuffer (%dx%d)\n",
width, height, si->si_width, si->si_height);
stbi_image_free(data);
return EINVAL;
}
/* XXX */
if (flg & SPLASH_F_CENTER) {
xoff = (si->si_width - width) / 2;
yoff = (si->si_height - height) / 2;
} else
xoff = yoff = 0;
switch (si->si_depth) {
#if NSPLASH8 > 0
case 8:
splash_render8(si, data, xoff, yoff, width, height, flg);
break;
#endif
#if NSPLASH16 > 0
case 16:
splash_render16(si, data, xoff, yoff, width, height, flg);
break;
#endif
#if NSPLASH32 > 0
case 32:
splash_render32(si, data, xoff, yoff, width, height, flg);
break;
#endif
default:
aprint_error("WARNING: Splash not supported at %dbpp\n",
si->si_depth);
error = EINVAL;
}
if (data)
stbi_image_free(data);
return error;
}
#if NSPLASH8 > 0
static void
splash_render8(struct splash_info *si, const char *data, int xoff, int yoff,
int swidth, int sheight, int flg)
{
const char *d;
u_char *fb, *p;
u_char pix[3];
int x, y, i;
int filled;
fb = si->si_bits;
if (flg & SPLASH_F_FILL)
filled = 0;
else
filled = 1;
d = data;
fb += xoff + yoff * si->si_stride;
for (y = 0; y < sheight; y++) {
for (x = 0; x < swidth; x++) {
pix[0] = *d++;
pix[1] = *d++;
pix[2] = *d++;
if (filled == 0) {
p = si->si_bits;
i = 0;
while (i < si->si_height*si->si_stride) {
p[i] = SPLASH_INDEX(
pix[0], pix[1], pix[2]) +
SPLASH_CMAP_OFFSET;
i++;
}
filled = 1;
}
fb[x] = SPLASH_INDEX(pix[0], pix[1], pix[2]) +
SPLASH_CMAP_OFFSET;
}
fb += si->si_stride;
}
/* If we've just written to the shadow fb, copy it to the display */
if (si->si_hwbits) {
if (flg & SPLASH_F_FILL) {
memcpy(si->si_hwbits, si->si_bits,
si->si_height*si->si_width);
} else {
u_char *rp, *hrp;
rp = si->si_bits + xoff + (yoff * si->si_width);
hrp = si->si_hwbits + xoff + (yoff * si->si_width);
for (y = 0; y < sheight; y++) {
memcpy(hrp, rp, swidth);
rp += si->si_stride;
hrp += si->si_stride;
}
}
}
return;
}
#endif /* !NSPLASH8 > 0 */
#if NSPLASH16 > 0
#define RGBTO16(b, o, x, c) \
do { \
uint16_t *_ptr = (uint16_t *)(&(b)[(o)]); \
*_ptr = (((c)[(x)*3+0] / 8) << 11) | \
(((c)[(x)*3+1] / 4) << 5) | \
(((c)[(x)*3+2] / 8) << 0); \
} while (0)
static void
splash_render16(struct splash_info *si, const char *data, int xoff, int yoff,
int swidth, int sheight, int flg)
{
const char *d;
u_char *fb, *p;
u_char pix[3];
int x, y, i;
int filled;
fb = si->si_bits;
if (flg & SPLASH_F_FILL)
filled = 0;
else
filled = 1;
d = data;
fb += xoff * 2 + yoff * si->si_stride;
for (y = 0; y < sheight; y++) {
for (x = 0; x < swidth; x++) {
pix[0] = *d++;
pix[1] = *d++;
pix[2] = *d++;
if (filled == 0) {
p = si->si_bits;
i = 0;
while (i < si->si_height*si->si_stride) {
RGBTO16(p, i, 0, pix);
i += 2;
}
filled = 1;
}
RGBTO16(fb, x*2, 0, pix);
}
fb += si->si_stride;
}
/* If we've just written to the shadow fb, copy it to the display */
if (si->si_hwbits) {
if (flg & SPLASH_F_FILL) {
memcpy(si->si_hwbits, si->si_bits,
si->si_height*si->si_stride);
} else {
u_char *rp, *hrp;
rp = si->si_bits + (xoff * 2) + (yoff * si->si_stride);
hrp = si->si_hwbits + (xoff * 2) +
(yoff * si->si_stride);
for (y = 0; y < sheight; y++) {
memcpy(hrp, rp, swidth * 2);
rp += si->si_stride;
hrp += si->si_stride;
}
}
}
return;
}
#undef RGBTO16
#endif /* !NSPLASH16 > 0 */
#if NSPLASH32 > 0
static void
splash_render32(struct splash_info *si, const char *data, int xoff, int yoff,
int swidth, int sheight, int flg)
{
const char *d;
u_char *fb, *p;
u_char pix[3];
int x, y, i;
int filled;
fb = si->si_bits;
if (flg & SPLASH_F_FILL)
filled = 0;
else
filled = 1;
d = data;
fb += xoff * 4 + yoff * si->si_stride;
for (y = 0; y < sheight; y++) {
for (x = 0; x < swidth; x++) {
pix[0] = *d++;
pix[1] = *d++;
pix[2] = *d++;
if (filled == 0) {
p = si->si_bits;
i = 0;
while (i < si->si_height*si->si_stride) {
p[i++] = pix[2];
p[i++] = pix[1];
p[i++] = pix[0];
p[i++] = 0;
}
filled = 1;
}
fb[x*4+0] = pix[2];
fb[x*4+1] = pix[1];
fb[x*4+2] = pix[0];
fb[x*4+3] = 0;
}
fb += si->si_stride;
}
/* If we've just written to the shadow fb, copy it to the display */
if (si->si_hwbits) {
if (flg & SPLASH_F_FILL) {
memcpy(si->si_hwbits, si->si_bits,
si->si_height*si->si_stride);
} else {
u_char *rp, *hrp;
rp = si->si_bits + (xoff * 4) + (yoff * si->si_stride);
hrp = si->si_hwbits + (xoff * 4) +
(yoff * si->si_stride);
for (y = 0; y < sheight; y++) {
memcpy(hrp, rp, swidth * 4);
rp += si->si_stride;
hrp += si->si_stride;
}
}
}
return;
}
#endif /* !NSPLASH32 > 0 */
#endif /* !SPLASHSCREEN */