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269 lines
5.7 KiB
269 lines
5.7 KiB
// 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, [email protected]. |
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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 <dm.h> |
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#include <lcd.h> |
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#include <mapmem.h> |
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#include <bmp_layout.h> |
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#include <command.h> |
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#include <asm/byteorder.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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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 *)((((unsigned int)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 load_addr as default address */ |
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addr = 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 load_addr as default address */ |
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addr = 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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x = simple_strtoul(argv[2], NULL, 10); |
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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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# ifdef CONFIG_SPLASH_SCREEN_ALIGN |
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align = true; |
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# endif /* CONFIG_SPLASH_SCREEN_ALIGN */ |
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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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