?? io.c
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#include"sim.h"void WriteImage(PictImage *image, char *filename){ int status; FILE *f_out; /* Opening file */ if ((f_out = fopen(filename,"ab")) == NULL)
{ fprintf(stderr,"%s%s\n","Error in opening file: ",filename); exit(-1); } /* Writing lum to file */ if ((status = fwrite(image->lum,sizeof(char),pels*lines,f_out)) != pels*lines)
{ fprintf(stderr,"%s%s\n","Error in writing to file: ",filename); exit(-1); } /* Writing Cb to file */ if ((status = fwrite(image->Cb,sizeof(char),pels*lines/4,f_out)) != pels*lines/4)
{ fprintf(stderr,"%s%s\n","Error in writing to file: ",filename); exit(-1); } /* Writing Cr to file */ if ((status = fwrite(image->Cr,sizeof(char),pels*lines/4,f_out)) != pels*lines/4)
{ fprintf(stderr,"%s%s\n","Error in writing to file: ",filename); exit(-1); } fclose(f_out); return;}PictImage *InitImage(int size){ PictImage *newpic; if ((newpic = (PictImage *)malloc(sizeof(PictImage))) == NULL)
{ fprintf(stderr,"Couldn't allocate (PictImage *)\n"); exit(-1); } if ((newpic->lum = (unsigned char *)malloc(sizeof(char)*size)) == NULL)
{ fprintf(stderr,"Couldn't allocate memory for luminance\n"); exit(-1); } if ((newpic->Cr = (unsigned char *)malloc(sizeof(char)*size/4)) == NULL)
{ fprintf(stderr,"Couldn't allocate memory for Cr\n"); exit(-1); } if ((newpic->Cb = (unsigned char *)malloc(sizeof(char)*size/4)) == NULL)
{ fprintf(stderr,"Couldn't allocate memory for Cb\n"); exit(-1); } return newpic;}void FreeImage(PictImage *image){ free(image->lum); free(image->Cr); free(image->Cb); free(image);}?? 快捷鍵說明
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