1 files changed, 46 insertions, 0 deletions
diff --git a/src/shaders/h264/ildb/AVC_ILDB_LumaThrdLimit.asm b/src/shaders/h264/ildb/AVC_ILDB_LumaThrdLimit.asm
new file mode 100644
index 0000000..554a673
--- /dev/null
+++ b/src/shaders/h264/ildb/AVC_ILDB_LumaThrdLimit.asm
@@ -0,0 +1,46 @@
+/*
+ * Copyright © <2010>, Intel Corporation.
+ *
+ * This program is licensed under the terms and conditions of the
+ * Eclipse Public License (EPL), version 1.0.  The full text of the EPL is at
+ * http://www.opensource.org/licenses/eclipse-1.0.php.
+ *
+ */
+//========== Forward message to root thread through gateway ==========
+
+// Chroma root kenrel updates luma thread limit.
+
+#if defined(_DEBUG) 
+mov		(1)		EntrySignatureC:w			0x7788:w
+#endif
+
+// Init payload to r0
+mov (8) 	GatewayPayload<1>:ud 	0:w								{ NoDDClr } 
+
+// Forward a message:
+// Offset = x relative to r50 (defiend in open gataway), x = ORIX >> 4 [bit 28:16]
+// Need to shift left 16
+
+mov	(1)		Offset_Length:ud		THREAD_LIMIT_OFFSET:ud	 			{ NoDDClr, NoDDChk }
+
+// Length = 1 byte,	[bit 10:8 = 000]
+//000 xxxxxxxxxxxxx 00000 000 00000000 ==> 000x xxxx xxxx xxxx 0000 0000 0000 0000
+
+//mov (1) 	DispatchID:ub 			r0.20:ub		// Dispatch ID
+
+//  Copy EUid and Thread ID that we received from the PARENT thread
+mov (1) 	EUID_TID:uw 			r0.6:uw								{ NoDDClr, NoDDChk }
+
+mov (1) 	GatewayPayloadKey:uw 	0x1212:uw							{ NoDDChk }	// Key
+
+//mov	(4)		GatewayPayload<1>:ud	0:ud								{ NoDDClr, NoDDChk }	// Init payload low 4 dword
+
+// Write back one byte (value = 0xFF) to root thread GRF to indicate this child thread is finished
+// All lower 4 bytes must be assigned to the same byte value.
+add	(1)		Temp1_W:w				MaxThreads:uw	-OutstandingThreads:uw
+mov	(4)		GatewayPayload<1>:ub	Temp1_B<0;1,0>:ub 
+
+send (8)  	GatewayResponse:ud 		m0	  		GatewayPayload<8;8,1>:ud    MSG_GW	FWDMSGDSC
+
+//========== Forward Msg Done ========================================
+