__inline__ int write_gray256(char * filename,
u8* pixel,
int width,
int height)
{
int i;
bmp_t bmp;
int lwidth = real_width(width);
int sizeImage = lwidth * height * (int)sizeof(u8);
bmp.file_header.type = 19778;
bmp.file_header.reserved1 = bmp.file_header.reserved2 = 0;
bmp.file_header.offsetbytes = 54 + 1024;
bmp.file_header.fsize = 54 + 1024 + sizeImage;
bmp.info_header.hsize = sizeof(bitmapInfoHeader_t);
bmp.info_header.width = width;
bmp.info_header.height = height;
bmp.info_header.planes = 1;
bmp.info_header.bitcount = 8;
bmp.info_header.compression = 0;
bmp.info_header.sizeimage = sizeImage;
bmp.info_header.xpelspermeter = 0;
bmp.info_header.ypelspermeter = 0;
bmp.info_header.colorsused = 0;
bmp.info_header.colorsimportant = 0;
bmp.data= pixel;
bmp.color_table= (RGBQUAD*)malloc(((size_t)1<< (size_t)bmp.info_header.bitcount)*sizeof(RGBQUAD));
for(i=0;i<(1<< bmp.info_header.bitcount);i++){
bmp.color_table[i].B= (u8)i;
bmp.color_table[i].G= (u8)i;
bmp.color_table[i].R= (u8)i;
bmp.color_table[i].Reserved=(u8)i;
}
return write_gray256(filename, &bmp, pixel);
}
__inline__ int write_bmp(char * filename, bmp_t* bmp,
rgb_t * pixel)
{
if(!pixel)
pixel = (rgb_t*) bmp->data;
if(bmp->bitcount == 8 && bmp->color_table == NULL){
return write_gray256(filename, (u8*)pixel, bmp->width, bmp->height);
}
FILE * file = fopen(filename, "wb");
if (!file) {
printf("File open error: %s\n", filename);
return -1;
}
if(!pixel)
return -1;
fwrite((void *)&(bmp->file_header), sizeof(bitmapFileHeader_t), 1, file);
fwrite((void *)&(bmp->info_header), sizeof(bitmapInfoHeader_t), 1, file);
if(bmp->color_table !=NULL)
fwrite((void *)bmp->color_table, sizeof(RGBQUAD)*256, 1, file);
fwrite((void *)pixel, bmp->info_header.sizeimage, 1, file);
fclose(file);
return 0;
}
