1 files changed, 54 insertions, 0 deletions
diff --git a/cogl/driver/drm/brw/brw_sf.c b/cogl/driver/drm/brw/brw_sf.c
new file mode 100644
index 00000000..6f821719
--- /dev/null
+++ b/cogl/driver/drm/brw/brw_sf.c
@@ -0,0 +1,54 @@
+#include "brw.h"
+
+bool brw_sf_kernel__nomask(struct brw_compile *p)
+{
+	struct brw_reg inv, v0, v1, v2, delta;
+
+	v0 = brw_vec4_grf(3, 0);
+	v1 = brw_vec4_grf(4, 0);
+	v2 = brw_vec4_grf(5, 0);
+	delta = brw_vec8_grf(7, 0);
+
+	inv = brw_vec4_grf(6, 0);
+	brw_math_invert(p, inv, brw_vec4_grf(1, 11));
+
+	brw_MOV(p, brw_message_reg(3), v0);
+
+	brw_ADD(p, delta, v1, brw_negate(v2));
+	brw_MUL(p, brw_message_reg(1), delta, brw_vec1_grf(6,0));
+
+	brw_ADD(p, delta, v2, brw_negate(v0));
+	brw_MUL(p, brw_message_reg(2), delta, brw_vec1_grf(6,2));
+
+	brw_urb_WRITE(p, brw_null_reg(), 0, brw_vec8_grf(0 ,0),
+		      false, true, 4, 0, true, true, 0,
+		      BRW_URB_SWIZZLE_TRANSPOSE);
+
+	return true;
+}
+
+bool brw_sf_kernel__mask(struct brw_compile *p)
+{
+	struct brw_reg inv, v0, v1, v2;
+
+	v0 = brw_vec8_grf(3, 0);
+	v1 = brw_vec8_grf(4, 0);
+	v2 = brw_vec8_grf(5, 0);
+
+	inv = brw_vec4_grf(6, 0);
+	brw_math_invert(p, inv, brw_vec4_grf(1, 11));
+
+	brw_MOV(p, brw_message_reg(3), v0);
+
+	brw_ADD(p, brw_vec8_grf(7, 0), v1, brw_negate(v2));
+	brw_MUL(p, brw_message_reg(1), brw_vec8_grf(7, 0), brw_vec1_grf(6,0));
+
+	brw_ADD(p, brw_vec8_grf(7, 0), v2, brw_negate(v0));
+	brw_MUL(p, brw_message_reg(2), brw_vec8_grf(7, 0), brw_vec1_grf(6,2));
+
+	brw_urb_WRITE(p, brw_null_reg(), 0, brw_vec8_grf(0 ,0),
+		      false, true, 4, 0, true, true, 0,
+		      BRW_URB_SWIZZLE_TRANSPOSE);
+
+	return true;
+}