Fix composite with mask using new compositing thread code

Clean up register allocation to never overlap
Always write 4 values for each texture vertex.

1 files changed, 47 insertions, 0 deletions

diff --git a/src/exa_wm_src_sample_a.g4a b/src/exa_wm_src_sample_a.g4a
new file mode 100644
index 00000000..803c358a
--- /dev/null
+++ b/src/exa_wm_src_sample_a.g4a
@@ -0,0 +1,47 @@
+/*
+ * Copyright © 2006 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Wang Zhenyu <zhenyu.z.wang@intel.com>
+ *    Keith Packard <keithp@keithp.com>
+ */
+
+/* Sample the src surface */
+
+include(`exa_wm.g4i')
+
+/* prepare sampler read back gX register, which would be written back to output */
+
+/* use simd16 sampler, param 0 is u, param 1 is v. */
+/* 'payload' loading, assuming tex coord start from g4 */
+
+/* load alpha */
+mov (1) g0.8<1>UD	0x00007000UD { align1 mask_disable };
+
+/* src_msg will be copied with g0, as it contains send desc */
+/* emit sampler 'send' cmd */
+send (16) src_msg_ind		/* msg reg index */
+	src_sample6<1>UW 	/* readback */
+	g0<8,8,1>UW		/* copy to msg start reg*/
+	sampler (1,0,F)		/* sampler message description, (binding_table,sampler_index,datatype)
+				/* here(src->dst) we should use src_sampler and src_surface */
+	mlen 5 rlen 2 { align1 };   /* required message len 5, readback len 8 */