void write_bmp(void)
{
char header[HEADER_SIZE];
FILE *output;
int x, y;
unsigned int *p;
output = fopen(file_name, "wb");
if (!output)
G_fatal_error("PNG: couldn't open output file %s", file_name);
memset(header, 0, sizeof(header));
make_bmp_header(header);
fwrite(header, sizeof(header), 1, output);
for (y = 0, p = grid; y < height; y++) {
for (x = 0; x < width; x++, p++) {
unsigned int c = *p;
int r, g, b, a;
get_pixel(c, &r, &g, &b, &a);
fputc((unsigned char)b, output);
fputc((unsigned char)g, output);
fputc((unsigned char)r, output);
fputc((unsigned char)a, output);
}
}
fclose(output);
}
int main(void)
{
t_bmp_header header;
t_bmp_info_header info;
unsigned int *buffer;
unsigned int **img;
t_point p = {0, 0};
size_t size = 64;
int d;
buffer = malloc(size * size * sizeof(*buffer));
img = malloc(size * sizeof(*img));
memset(buffer, 0, size * size * sizeof(*buffer));
for (size_t i = 0; i < size; ++i)
img[i] = buffer + i * size;
make_bmp_header(&header, size);
make_bmp_info_header(&info, size);
draw_square(img, &p, size, 0x0000FFFF);
p.x = 10;
p.y = 10;
draw_square(img, &p, 22, 0x00FF0000);
d = open("square.bmp", O_CREAT | O_TRUNC | O_WRONLY, 0644);
write(d, &header, sizeof(header));
write(d, &info, sizeof(info));
write(d, buffer, size * size * sizeof(*buffer));
close(d);
return EXIT_SUCCESS;
}
int main(void)
{
t_bmp_header header;
t_bmp_info_header info;
int d;
uint32_t pixel = 0x00FFFFFF;
make_bmp_header(&header, 32);
make_bmp_info_header(&info, 32);
d = open("32px.bmp", O_CREAT | O_TRUNC | O_WRONLY, 0644);
write(d, &header, sizeof(header));
write(d, &info, sizeof(info));
for (size_t i = 0; i < 32 * 32; ++i)
write(d, &pixel, sizeof(pixel));
close(d);
return EXIT_SUCCESS;
}