X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Fgfxutil.h;h=603c11da3014d4b02539ff5126724a1adf28d827;hb=9b942b99fe10222bee50c47bfc809de268d331ec;hp=8de560704c860a7f9cf1b4dafe89535fd4f56510;hpb=757e7697c9a4434df6f3fdf3234de504bb4636bc;p=dosdemo

diff --git a/src/gfxutil.h b/src/gfxutil.h
index 8de5607..603c11d 100644
--- a/src/gfxutil.h
+++ b/src/gfxutil.h
@@ -1,6 +1,16 @@
 #ifndef GFXUTIL_H_
 #define GFXUTIL_H_
 
+#define PACK_RGB16(r, g, b) \
+	(((((r) >> 3) & 0x1f) << 11) | ((((g) >> 2) & 0x3f) << 5) | (((b) >> 3) & 0x1f))
+
+#define UNPACK_R16(c)	(((c) >> 8) & 0xf8)
+#define UNPACK_G16(c)	(((c) >> 3) & 0xfc)
+#define UNPACK_B16(c)	(((c) << 3) & 0xf8)
+
+#define PACK_RGB32(r, g, b) \
+	((((r) & 0xff) << 16) | (((g) & 0xff) << 8) | ((b) & 0xff))
+
 int clip_line(int *x0, int *y0, int *x1, int *y1, int xmin, int ymin, int xmax, int ymax);
 void draw_line(int x0, int y0, int x1, int y1, unsigned short color);