int start_graph3d() {
int errcode;
// Initialize the device
if((fd = open("/dev/glint3", O_RDWR)) == 0) return GRAPH3D_ERR_OPEN;
if(ioctl(fd, VMODE, V_800x600_60Hz) != 0) return GRAPH3D_ERR_INIT;
if(ioctl(fd, VERSION, &version) != 0) version = 1;
printf("version: %d\n", version);
if(version == 1) {
if(ioctl(fd, BIND_CONTROL, &glint_board.control_base) != 0)
return GRAPH3D_ERR_INIT;
if(ioctl(fd, BIND_DMA, glint_board.dmagob) != 0)
return GRAPH3D_ERR_INIT;
pbuf = dma_data.virt_base = glint_board.dmagob[0].virt_base;
dma_num = 0;
} else {
if(ioctl(fd, BIND_DMA, &glint_board.dmagob[0].virt_base) != 0)
return GRAPH3D_ERR_INIT;
pbuf = dma_data.virt_base = glint_board.dmagob[0].virt_base;
}
// Clear the screen
draw_dma_rect(0, 0, gr_black, 800, 600, gr_black);
flush_dma();
return GRAPH3D_OK;
}
int main(int argc, char *argv[]) {
int i, j, errcode;
int x, y;
int width, height;
Graph3dColor c;
FILE *fp;
unsigned char *image_bytes;
char buf[1024];
char *s, *parse;
int max_color, size;
if((fp = fopen(argv[1], "rb")) == NULL) {
printf("Unable to open file %s\n", argv[1]);
exit(1);
}
printf("Starting Graphics...\n");
if(errcode = start_graph3d()) {
printf("failed! (errcode = %d)\n", errcode);
exit(0);
}
/* Import graphics file */
/* Ignore the comments */
fgets(buf, sizeof(buf), fp);
do {
fgets(buf, sizeof(buf), fp);
} while(buf[0] == '#');
for(parse = s = buf; *parse != ' '; parse++) ;
*parse = 0;
width = atoi(s);
parse++;
for(s = parse; *parse != '\n'; parse++) ;
*parse = 0;
height = atoi(s);
fgets(buf, sizeof(buf), fp);
max_color = atoi(buf);
size = width * height;
image_bytes = (unsigned char *)calloc(3, size);
fread(image_bytes, 1, 3*size, fp);
fclose(fp);
/* Grey background */
draw_dma_rect(0, 0, gr_grey, 800, 600, gr_grey);
/* Draw the image */
for(y = 0; y < height; y++) {
for(x = 0; x < width; x++) {
c.r = image_bytes[(y*width+x)*3 + 0];
c.g = image_bytes[(y*width+x)*3 + 1];
c.b = image_bytes[(y*width+x)*3 + 2];
draw_point(x, y, c);
}
graph3d_flush();
}
printf("Press a key\n");
getchar();
end_graph3d();
free(image_bytes);
printf("Done!!!!\n");
return 0;
}
