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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
143 lines
3.2 KiB
C
143 lines
3.2 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 <log.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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/*
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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 or decompression is not enabled in
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* Kconfig.
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*/
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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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if (!CONFIG_IS_ENABLED(VIDEO_BMP_GZIP))
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return NULL;
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/*
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* Decompress bmp image
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*/
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len = CONFIG_VAL(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_VAL(VIDEO_LOGO_MAX_SIZE) + 3);
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if (!dst) {
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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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/* align to 32-bit-aligned-address + 2 */
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bmp = dst + 2;
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if (gunzip(bmp, CONFIG_VAL(VIDEO_LOGO_MAX_SIZE), map_sysmem(addr, 0),
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&len)) {
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free(dst);
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return NULL;
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}
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if (len == CONFIG_VAL(VIDEO_LOGO_MAX_SIZE))
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puts("Image could be truncated (increase CONFIG_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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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) {
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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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int bmp_display(ulong addr, int x, int y)
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{
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struct udevice *dev;
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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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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 (x == BMP_ALIGN_CENTER || 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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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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