Add image computing oriented builtin functions
The new built-in functions covers inverse DCT, ADST and walsh transforms.
Change-Id: Ie7044da4a5becf2cc80d066a258211721a5939d4
diff --git a/scriptc/rs_idct.rsh b/scriptc/rs_idct.rsh
new file mode 100644
index 0000000..e379736
--- /dev/null
+++ b/scriptc/rs_idct.rsh
@@ -0,0 +1,13 @@
+#ifndef __RS_IDCT_RSH__
+#define __RS_IDCT_RSH__
+
+#if RS_VERSION > 19
+
+extern void idct4x4(const rs_allocation input, rs_allocation dest, int eob, int xoff, int yoff);
+extern void idct8x8(const rs_allocation input, rs_allocation dest, int eob, int xoff, int yoff);
+extern void idct16x16(const rs_allocation input, rs_allocation dest, int eob, int xoff, int yoff);
+extern void idct32x32(const rs_allocation input, rs_allocation dest, int eob, int xoff, int yoff);
+
+#endif
+
+#endif