* (C) Copyright 2002
* Detlev Zundel, DENX Software Engineering, dzu@denx.de.
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
/*
#include <command.h>
#include <asm/byteorder.h>
#include <malloc.h>
+#include <splash.h>
+#include <video.h>
static int bmp_info (ulong addr);
-static int bmp_display (ulong addr, int x, int y);
/*
* Allocate and decompress a BMP image using gunzip().
*
- * Returns a pointer to the decompressed image data. Must be freed by
- * the caller after use.
+ * Returns a pointer to the decompressed image data. This pointer is
+ * aligned to 32-bit-aligned-address + 2.
+ * See doc/README.displaying-bmps for explanation.
+ *
+ * The allocation address is passed to 'alloc_addr' and must be freed
+ * by the caller after use.
*
* Returns NULL if decompression failed, or if the decompressed data
* didn't contain a valid BMP signature.
*/
#ifdef CONFIG_VIDEO_BMP_GZIP
-bmp_image_t *gunzip_bmp(unsigned long addr, unsigned long *lenp)
+bmp_image_t *gunzip_bmp(unsigned long addr, unsigned long *lenp,
+ void **alloc_addr)
{
void *dst;
unsigned long len;
* Decompress bmp image
*/
len = CONFIG_SYS_VIDEO_LOGO_MAX_SIZE;
- dst = malloc(CONFIG_SYS_VIDEO_LOGO_MAX_SIZE);
+ /* allocate extra 3 bytes for 32-bit-aligned-address + 2 alignment */
+ dst = malloc(CONFIG_SYS_VIDEO_LOGO_MAX_SIZE + 3);
if (dst == NULL) {
puts("Error: malloc in gunzip failed!\n");
return NULL;
}
- if (gunzip(dst, CONFIG_SYS_VIDEO_LOGO_MAX_SIZE, (uchar *)addr, &len) != 0) {
+
+ bmp = dst;
+
+ /* align to 32-bit-aligned-address + 2 */
+ bmp = (bmp_image_t *)((((unsigned int)dst + 1) & ~3) + 2);
+
+ if (gunzip(bmp, CONFIG_SYS_VIDEO_LOGO_MAX_SIZE, (uchar *)addr, &len) != 0) {
free(dst);
return NULL;
}
puts("Image could be truncated"
" (increase CONFIG_SYS_VIDEO_LOGO_MAX_SIZE)!\n");
- bmp = dst;
-
/*
* Check for bmp mark 'BM'
*/
debug("Gzipped BMP image detected!\n");
+ *alloc_addr = dst;
return bmp;
}
#else
-bmp_image_t *gunzip_bmp(unsigned long addr, unsigned long *lenp)
+bmp_image_t *gunzip_bmp(unsigned long addr, unsigned long *lenp,
+ void **alloc_addr)
{
return NULL;
}
addr = simple_strtoul(argv[1], NULL, 16);
break;
default:
- return cmd_usage(cmdtp);
+ return CMD_RET_USAGE;
}
return (bmp_info(addr));
ulong addr;
int x = 0, y = 0;
+ splash_get_pos(&x, &y);
+
switch (argc) {
case 1: /* use load_addr as default address */
addr = load_addr;
y = simple_strtoul(argv[3], NULL, 10);
break;
default:
- return cmd_usage(cmdtp);
+ return CMD_RET_USAGE;
}
return (bmp_display(addr, x, y));
if (c)
return c->cmd(cmdtp, flag, argc, argv);
else
- return cmd_usage(cmdtp);
+ return CMD_RET_USAGE;
}
U_BOOT_CMD(
static int bmp_info(ulong addr)
{
bmp_image_t *bmp=(bmp_image_t *)addr;
+ void *bmp_alloc_addr = NULL;
unsigned long len;
if (!((bmp->header.signature[0]=='B') &&
(bmp->header.signature[1]=='M')))
- bmp = gunzip_bmp(addr, &len);
+ bmp = gunzip_bmp(addr, &len, &bmp_alloc_addr);
if (bmp == NULL) {
printf("There is no valid bmp file at the given address\n");
printf("Bits per pixel: %d\n", le16_to_cpu(bmp->header.bit_count));
printf("Compression : %d\n", le32_to_cpu(bmp->header.compression));
- if ((unsigned long)bmp != addr)
- free(bmp);
+ if (bmp_alloc_addr)
+ free(bmp_alloc_addr);
return(0);
}
* Return: None
*
*/
-static int bmp_display(ulong addr, int x, int y)
+int bmp_display(ulong addr, int x, int y)
{
int ret;
bmp_image_t *bmp = (bmp_image_t *)addr;
+ void *bmp_alloc_addr = NULL;
unsigned long len;
if (!((bmp->header.signature[0]=='B') &&
(bmp->header.signature[1]=='M')))
- bmp = gunzip_bmp(addr, &len);
+ bmp = gunzip_bmp(addr, &len, &bmp_alloc_addr);
if (!bmp) {
printf("There is no valid bmp file at the given address\n");
#if defined(CONFIG_LCD)
ret = lcd_display_bitmap((ulong)bmp, x, y);
#elif defined(CONFIG_VIDEO)
- extern int video_display_bitmap (ulong, int, int);
-
- ret = video_display_bitmap ((unsigned long)bmp, x, y);
+ ret = video_display_bitmap((unsigned long)bmp, x, y);
#else
# error bmp_display() requires CONFIG_LCD or CONFIG_VIDEO
#endif
- if ((unsigned long)bmp != addr)
- free(bmp);
+ if (bmp_alloc_addr)
+ free(bmp_alloc_addr);
return ret;
}
projects / karo-tx-uboot.git / blobdiff