diff options
Diffstat (limited to 'bmp.c')
| -rw-r--r-- | bmp.c | 23 |
1 files changed, 8 insertions, 15 deletions
@@ -27,27 +27,23 @@ int fh_bmp_id(char *name) { int fd; char id[2]; - fd = open(name, O_RDONLY); - if (fd == -1) { - return(0); - } - + if (fd == -1) return(0); read(fd, id, 2); close(fd); - if ( id[0]=='B' && id[1]=='M' ) { - return(1); - } + if ( id[0]=='B' && id[1]=='M' ) return(1); return(0); } + void fetch_pallete(int fd, struct color pallete[], int count) { unsigned char buff[4]; int i; lseek(fd, BMP_COLOR_OFFSET, SEEK_SET); - for (i=0; i<count; i++) { + for (i=0; i<count; i++) + { read(fd, buff, 4); pallete[i].red = buff[2]; pallete[i].green = buff[1]; @@ -56,6 +52,7 @@ void fetch_pallete(int fd, struct color pallete[], int count) return; } + int fh_bmp_load(char *name,unsigned char *buffer, unsigned char **alpha, int x,int y) { int fd, bpp, raster, i, j, k, skip; @@ -203,12 +200,8 @@ int fh_bmp_getsize(char *name,int *x,int *y) unsigned char size[4]; fd = open(name, O_RDONLY); - if (fd == -1) { - return(FH_ERROR_FILE); - } - if (lseek(fd, BMP_SIZE_OFFSET, SEEK_SET) == -1) { - return(FH_ERROR_FORMAT); - } + if (fd == -1) return(FH_ERROR_FILE); + if (lseek(fd, BMP_SIZE_OFFSET, SEEK_SET) == -1) return(FH_ERROR_FORMAT); read(fd, size, 4); *x = size[0] + (size[1]<<8) + (size[2]<<16) + (size[3]<<24); |
