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![Simon Glass](/assets/img/avatar_default.png)
These three globals relate to image handling. Move them to the image header file. Signed-off-by: Simon Glass <sjg@chromium.org>
279 lines
5.9 KiB
C
279 lines
5.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2002
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* Detlev Zundel, DENX Software Engineering, dzu@denx.de.
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*/
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/*
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* BMP handling routines
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*/
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#include <common.h>
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#include <bmp_layout.h>
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#include <command.h>
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#include <dm.h>
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#include <gzip.h>
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#include <image.h>
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#include <lcd.h>
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#include <malloc.h>
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#include <mapmem.h>
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#include <splash.h>
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#include <video.h>
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#include <asm/byteorder.h>
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static int bmp_info (ulong addr);
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/*
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* Allocate and decompress a BMP image using gunzip().
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*
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* Returns a pointer to the decompressed image data. This pointer is
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* aligned to 32-bit-aligned-address + 2.
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* See doc/README.displaying-bmps for explanation.
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*
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* The allocation address is passed to 'alloc_addr' and must be freed
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* by the caller after use.
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*
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* Returns NULL if decompression failed, or if the decompressed data
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* didn't contain a valid BMP signature.
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*/
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#ifdef CONFIG_VIDEO_BMP_GZIP
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struct bmp_image *gunzip_bmp(unsigned long addr, unsigned long *lenp,
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void **alloc_addr)
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{
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void *dst;
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unsigned long len;
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struct bmp_image *bmp;
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/*
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* Decompress bmp image
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*/
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len = CONFIG_SYS_VIDEO_LOGO_MAX_SIZE;
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/* allocate extra 3 bytes for 32-bit-aligned-address + 2 alignment */
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dst = malloc(CONFIG_SYS_VIDEO_LOGO_MAX_SIZE + 3);
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if (dst == NULL) {
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puts("Error: malloc in gunzip failed!\n");
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return NULL;
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}
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bmp = dst;
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/* align to 32-bit-aligned-address + 2 */
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bmp = (struct bmp_image *)((((uintptr_t)dst + 1) & ~3) + 2);
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if (gunzip(bmp, CONFIG_SYS_VIDEO_LOGO_MAX_SIZE, map_sysmem(addr, 0),
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&len) != 0) {
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free(dst);
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return NULL;
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}
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if (len == CONFIG_SYS_VIDEO_LOGO_MAX_SIZE)
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puts("Image could be truncated"
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" (increase CONFIG_SYS_VIDEO_LOGO_MAX_SIZE)!\n");
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/*
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* Check for bmp mark 'BM'
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*/
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if (!((bmp->header.signature[0] == 'B') &&
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(bmp->header.signature[1] == 'M'))) {
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free(dst);
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return NULL;
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}
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debug("Gzipped BMP image detected!\n");
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*alloc_addr = dst;
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return bmp;
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}
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#else
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struct bmp_image *gunzip_bmp(unsigned long addr, unsigned long *lenp,
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void **alloc_addr)
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{
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return NULL;
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}
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#endif
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static int do_bmp_info(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
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{
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ulong addr;
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switch (argc) {
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case 1: /* use image_load_addr as default address */
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addr = image_load_addr;
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break;
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case 2: /* use argument */
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addr = simple_strtoul(argv[1], NULL, 16);
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break;
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default:
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return CMD_RET_USAGE;
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}
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return (bmp_info(addr));
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}
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static int do_bmp_display(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
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{
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ulong addr;
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int x = 0, y = 0;
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splash_get_pos(&x, &y);
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switch (argc) {
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case 1: /* use image_load_addr as default address */
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addr = image_load_addr;
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break;
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case 2: /* use argument */
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addr = simple_strtoul(argv[1], NULL, 16);
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break;
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case 4:
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addr = simple_strtoul(argv[1], NULL, 16);
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if (!strcmp(argv[2], "m"))
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x = BMP_ALIGN_CENTER;
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else
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x = simple_strtoul(argv[2], NULL, 10);
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if (!strcmp(argv[3], "m"))
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y = BMP_ALIGN_CENTER;
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else
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y = simple_strtoul(argv[3], NULL, 10);
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break;
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default:
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return CMD_RET_USAGE;
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}
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return (bmp_display(addr, x, y));
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}
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static cmd_tbl_t cmd_bmp_sub[] = {
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U_BOOT_CMD_MKENT(info, 3, 0, do_bmp_info, "", ""),
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U_BOOT_CMD_MKENT(display, 5, 0, do_bmp_display, "", ""),
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};
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#ifdef CONFIG_NEEDS_MANUAL_RELOC
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void bmp_reloc(void) {
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fixup_cmdtable(cmd_bmp_sub, ARRAY_SIZE(cmd_bmp_sub));
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}
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#endif
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/*
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* Subroutine: do_bmp
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*
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* Description: Handler for 'bmp' command..
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*
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* Inputs: argv[1] contains the subcommand
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*
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* Return: None
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*
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*/
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static int do_bmp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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cmd_tbl_t *c;
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/* Strip off leading 'bmp' command argument */
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argc--;
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argv++;
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c = find_cmd_tbl(argv[0], &cmd_bmp_sub[0], ARRAY_SIZE(cmd_bmp_sub));
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if (c)
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return c->cmd(cmdtp, flag, argc, argv);
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else
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return CMD_RET_USAGE;
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}
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U_BOOT_CMD(
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bmp, 5, 1, do_bmp,
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"manipulate BMP image data",
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"info <imageAddr> - display image info\n"
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"bmp display <imageAddr> [x y] - display image at x,y"
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);
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/*
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* Subroutine: bmp_info
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*
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* Description: Show information about bmp file in memory
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*
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* Inputs: addr address of the bmp file
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*
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* Return: None
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*
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*/
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static int bmp_info(ulong addr)
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{
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struct bmp_image *bmp = (struct bmp_image *)map_sysmem(addr, 0);
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void *bmp_alloc_addr = NULL;
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unsigned long len;
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if (!((bmp->header.signature[0]=='B') &&
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(bmp->header.signature[1]=='M')))
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bmp = gunzip_bmp(addr, &len, &bmp_alloc_addr);
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if (bmp == NULL) {
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printf("There is no valid bmp file at the given address\n");
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return 1;
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}
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printf("Image size : %d x %d\n", le32_to_cpu(bmp->header.width),
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le32_to_cpu(bmp->header.height));
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printf("Bits per pixel: %d\n", le16_to_cpu(bmp->header.bit_count));
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printf("Compression : %d\n", le32_to_cpu(bmp->header.compression));
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if (bmp_alloc_addr)
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free(bmp_alloc_addr);
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return(0);
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}
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/*
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* Subroutine: bmp_display
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*
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* Description: Display bmp file located in memory
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*
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* Inputs: addr address of the bmp file
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*
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* Return: None
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*
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*/
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int bmp_display(ulong addr, int x, int y)
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{
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#ifdef CONFIG_DM_VIDEO
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struct udevice *dev;
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#endif
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int ret;
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struct bmp_image *bmp = map_sysmem(addr, 0);
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void *bmp_alloc_addr = NULL;
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unsigned long len;
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if (!((bmp->header.signature[0]=='B') &&
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(bmp->header.signature[1]=='M')))
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bmp = gunzip_bmp(addr, &len, &bmp_alloc_addr);
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if (!bmp) {
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printf("There is no valid bmp file at the given address\n");
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return 1;
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}
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addr = map_to_sysmem(bmp);
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#ifdef CONFIG_DM_VIDEO
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ret = uclass_first_device_err(UCLASS_VIDEO, &dev);
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if (!ret) {
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bool align = false;
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if (CONFIG_IS_ENABLED(SPLASH_SCREEN_ALIGN) ||
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x == BMP_ALIGN_CENTER ||
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y == BMP_ALIGN_CENTER)
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align = true;
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ret = video_bmp_display(dev, addr, x, y, align);
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}
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#elif defined(CONFIG_LCD)
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ret = lcd_display_bitmap(addr, x, y);
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#elif defined(CONFIG_VIDEO)
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ret = video_display_bitmap(addr, x, y);
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#else
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# error bmp_display() requires CONFIG_LCD or CONFIG_VIDEO
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#endif
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if (bmp_alloc_addr)
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free(bmp_alloc_addr);
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return ret ? CMD_RET_FAILURE : 0;
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}
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