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-rw-r--r--src/shaders/h264/ildb/load_Cur_UV_8x8T_Mbaff.asm62
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diff --git a/src/shaders/h264/ildb/load_Cur_UV_8x8T_Mbaff.asm b/src/shaders/h264/ildb/load_Cur_UV_8x8T_Mbaff.asm
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+++ b/src/shaders/h264/ildb/load_Cur_UV_8x8T_Mbaff.asm
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+/*
+ * 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.
+ *
+ */
+// Module name: load_Cur_UV_8x8T.asm
+//
+// Load and transpose UV 8x8 block (NV12: 8x8U and 8x8V mixed)
+//
+//----------------------------------------------------------------
+// Symbols need to be defined before including this module
+//
+// Source region in :ud
+// SRC_UD: SRC_UD Base=rxx ElementSize=4 SrcRegion=REGION(8,1) Type=ud (U+V for NV12) // 4 GRFs
+//
+// Binding table index:
+// BI_SRC_UV: Binding table index of UV surface (NV12)
+//
+//----------------------------------------------------------------
+
+#if defined(_DEBUG)
+ mov (1) EntrySignatureC:w 0xDDD1:w
+#endif
+ // FieldModeCurrentMbFlag determines how to access left MB
+ and.z.f0.0 (1) null:w r[ECM_AddrReg, BitFlags]:ub FieldModeCurrentMbFlag:w
+
+ and.nz.f0.1 (1) NULLREGW BitFields:w BotFieldFlag:w // Get bottom field flag
+
+ // Read U+V
+ mov (1) MSGSRC.0:ud ORIX_CUR:w { NoDDClr } // Block origin
+ asr (1) MSGSRC.1:ud ORIY_CUR:w 1:w { NoDDClr, NoDDChk } // NV12 U+V block origin y = half of Y comp
+ mov (1) MSGSRC.2:ud 0x0007000F:ud { NoDDChk } // NV12 U+V block width and height (16x8 bytes)
+
+ // Set message descriptor
+
+ (f0.0) if (1) ILDB_LABEL(ELSE_UV_8X8T)
+
+ // Frame picture
+ mov (1) MSGDSC RESP_LEN(4)+DWBRMSGDSC_SC+BI_SRC_UV:ud // Read 4 GRFs from SRC_UV
+
+ (f0.1) add (1) MSGSRC.1:d MSGSRC.1:d 8:w // Add vertical offset 8 for bot MB in MBAFF mode
+
+ILDB_LABEL(ELSE_UV_8X8T):
+ else (1) ILDB_LABEL(ENDIF_UV_8X8T)
+
+ // Field picture
+ (f0.1) mov (1) MSGDSC RESP_LEN(4)+DWBRMSGDSC_SC_BF+BI_SRC_UV:ud // Read 4 GRFs from SRC_UV bottom field
+ (-f0.1) mov (1) MSGDSC RESP_LEN(4)+DWBRMSGDSC_SC_TF+BI_SRC_UV:ud // Read 4 GRFs from SRC_UV top field
+
+ asr (1) MSGSRC.1:d MSGSRC.1:d 1:w // Reduce y by half in field access mode
+
+ endif
+ILDB_LABEL(ENDIF_UV_8X8T):
+
+ send (8) SRC_UD(0)<1> MSGHDRU MSGSRC<8;8,1>:ud DAPREAD MSGDSC
+
+// #include "Transpose_Cur_UV_8x8.asm"
+
+// End of load_UV_8x8T