extern "C" {
#endif
-void gfxdevice_rescale_init(gfxdevice_t*self, gfxdevice_t*dest, int targetwidth, int targetheight);
+/* either:
+ width,height = desired output size
+ or:
+ scale = desired zoom factor
+*/
+void gfxdevice_rescale_init(gfxdevice_t*dev, gfxdevice_t*out, int width, int height, double scale);
+void gfxdevice_rescale_setzoom(gfxdevice_t*dev, double scale);
+void gfxdevice_rescale_setdevice(gfxdevice_t*dev, gfxdevice_t*out);
#ifdef __cplusplus
}