- XGCValues gcv;
- gcv.cap_style = CapProjecting;
-
- int w = 255, h = 32;
- Pixmap p = XCreatePixmap(**display, d, w, h, _screen->depth());
- XImage *im = XCreateImage(**display, _screen->visual(), _screen->depth(),
- ZPixmap, 0, NULL, w, h, 32, 0);
- //GC gc = XCreateGC(**display, _screen->rootWindow(), GCCapStyle, &gcv);
-
- im->data = new char[im->bytes_per_line * (h + 1)]; // XXX + 1?
- char *dp = im->data;
-
- for (int x = 0; x < w; ++x, ++dp)
- *dp = 0;
- for (int y = 0; y < 10; ++h)
- for (int x = 0; x < w; ++x, ++dp)
- *dp = _red_color_table[x] << _red_offset;
- for (int y = 0; y < 10; ++h)
- for (int x = 0; x < w; ++x, ++dp)
- *dp = _green_color_table[x] << _green_offset;
- for (int y = 0; y < 10; ++h)
- for (int x = 0; x < w; ++x, ++dp)
- *dp = _blue_color_table[x] << _blue_offset;
- for (int x = 0; x < w; ++x, ++dp)
- *dp = 0;
-
- XPutImage(**display, p, DefaultGC(**display, _screen->screen()),
- im, 0, 0, 0, 0, w, h);
-
- //delete [] image->data;
- //image->data = NULL;
- XDestroyImage(im);
-
- XCopyArea(**display, p, d, DefaultGC(**display, _screen->screen()),
- 0, 0, w, h, 0, 0);
+ // since pixel32 is the largest possible pixel size, we can share the array
+ int r, g, b;
+ int x,y;
+ pixel32 *data = sf.pixelData();
+ pixel32 *ret = (pixel32*)malloc(im->width * im->height * 4);
+ pixel16 *p = (pixel16*) ret;
+ switch (im->bits_per_pixel) {
+ case 32:
+ if ((_red_offset != default_red_shift) ||
+ (_blue_offset != default_blue_shift) ||
+ (_green_offset != default_green_shift)) {
+ printf("cross endian conversion\n");
+ for (y = 0; y < im->height; y++) {
+ for (x = 0; x < im->width; x++) {
+ r = (data[x] >> default_red_shift) & 0xFF;
+ g = (data[x] >> default_green_shift) & 0xFF;
+ b = (data[x] >> default_blue_shift) & 0xFF;
+ ret[x] = (r << _red_offset) + (g << _green_offset) +
+ (b << _blue_offset);
+ }
+ data += im->width;
+ }
+ } else {
+ memcpy(ret, data, im->width * im->height * 4);
+ }
+ break;
+ case 16:
+ for (y = 0; y < im->height; y++) {
+ for (x = 0; x < im->width; x++) {
+ r = (data[x] >> default_red_shift) & 0xFF;
+ r = r >> _red_shift;
+ g = (data[x] >> default_green_shift) & 0xFF;
+ g = g >> _green_shift;
+ b = (data[x] >> default_blue_shift) & 0xFF;
+ b = b >> _blue_shift;
+ p[x] = (r << _red_offset) + (g << _green_offset) + (b << _blue_offset);
+ }
+ data += im->width;
+ p += im->bytes_per_line/2;
+ }
+ break;
+ default:
+ printf("your bit depth is currently unhandled\n");
+ }
+ im->data = (char*)ret;
+}