-void Image_MipReduce(qbyte *in, qbyte *out, int *width, int *height, int *depth, int destwidth, int destheight, int destdepth, int bytesperpixel);
+void Image_MipReduce32(const unsigned char *in, unsigned char *out, int *width, int *height, int *depth, int destwidth, int destheight, int destdepth);
+
+void Image_HeightmapToNormalmap_BGRA(const unsigned char *inpixels, unsigned char *outpixels, int width, int height, int clamp, float bumpscale);
+
+// console command to fix the colors of transparent pixels (to prevent weird borders)
+void Image_FixTransparentPixels_f(void);
+extern cvar_t r_fixtrans_auto;
+
+#define Image_LinearFloatFromsRGB(c) (((c) < 11) ? (c) * 0.000302341331f : (float)pow(((c)*(1.0f/256.0f) + 0.055f)*(1.0f/1.0555f), 2.4f))