From: hackbard Date: Tue, 19 Oct 2004 15:22:55 +0000 (+0000) Subject: grab cut function implemented (memcpy data to leave orig untouched) X-Git-Url: https://hackdaworld.org/gitweb/?a=commitdiff_plain;h=a21023e93104fb6e96b57afa23ab4628c8e5e055;p=my-code%2Fapi.git grab cut function implemented (memcpy data to leave orig untouched) --- diff --git a/bmp/bmp.c b/bmp/bmp.c index 520b283..cc53c7c 100644 --- a/bmp/bmp.c +++ b/bmp/bmp.c @@ -138,7 +138,9 @@ int bmp_write_file(t_bmp *bmp) { return B_SUCCESS; } -int bmp_cut_bottom(t_bmp *dst,t_bmp *src,int dz) { +int bmp_cut_grab_bottom(t_bmp *dst,t_bmp *src,int dz,unsigned char m) { + + int off; dst->width=src->width; dst->height=dz; @@ -148,18 +150,13 @@ int bmp_cut_bottom(t_bmp *dst,t_bmp *src,int dz) { return B_E_GEOMETRY; } - /* obsolete - we point to wanted memory instead if(bmp_alloc_map(dst)!=B_SUCCESS) { dprintf(dst->outfd,"[bmp] no map memory\n"); return B_E_MEM; } - */ - /* obsolete - we point to wanted memory instead - memcpy(dst->map,src->map+(src->height-dz)*src->width, - dz*src->width*sizeof(t_pixel)); - */ - dst->map=src->map+(src->height-dz)*src->width; + off=(m==GRAB)?0:(src->height-dz)*src->width; + memcpy(dst->map,src->map+off,dz*src->width*sizeof(t_pixel)); return B_SUCCESS; } diff --git a/bmp/bmp.h b/bmp/bmp.h index 40e6df4..f9216a8 100644 --- a/bmp/bmp.h +++ b/bmp/bmp.h @@ -28,6 +28,7 @@ #define MAX_CHARS_FILE 32 #define BMP_H_SIZE 14 #define BMP_I_SIZE 40 +#define GRAB 'g' /* bmp specific variables */ typedef struct s_bmp_hdr { @@ -78,7 +79,7 @@ int bmp_shutdown(t_bmp *bmp); int bmp_check_header_and_info(t_bmp *bmp); int bmp_alloc_map(t_bmp *bmp); int bmp_write_file(t_bmp *bmp); -int bmp_cut_bottom(t_bmp *dst,t_bmp *src,int dz); +int bmp_cut_grab_bottom(t_bmp *dst,t_bmp *src,int dz,unsigned char m); int bmp_read_file(t_bmp *bmp); #endif