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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_Top_UV_8X2.Asm
//
// Load UV 8X2 Block
//
//----------------------------------------------------------------
// Symbols ceed To be defined before including this module
//
// Source Region Is :UB
// BUF_D: BUF_D Base=Rxx Elementsize=4 Srcregion=Region(8,1) Type=UD
// Binding Table Index:
// BI_SRC_UV: Binding Table Index Of UV Surface (NV12)
//
//----------------------------------------------------------------
#if defined(_DEBUG)
mov (1) EntrySignatureC:w 0xDDD2:w
#endif
#if defined(_PROGRESSIVE)
// Read U+V
mov (1) MSGSRC.0:ud ORIX_TOP:w { NoDDClr } // Block origin
asr (1) MSGSRC.1:ud ORIY_TOP:w 1:w { NoDDClr, NoDDChk } // NV12 U+V block origin y = half of Y comp
mov (1) MSGSRC.2:ud 0x0001000F:ud { NoDDChk } // NV12 U+V block width and height (16x2)
// Read 1 GRF from DEST surface as the above MB has been deblocked.
//send (8) TOP_MB_UD(0)<1> MSGHDRU MSGSRC<8;8,1>:ud RESP_LEN(1)+DWBRMSGDSC_RC+BI_DEST_UV
mov (1) MSGDSC RESP_LEN(1)+DWBRMSGDSC_RC+BI_DEST_UV:ud
#endif
#if defined(_FIELD)
// cmp.z.f0.0 (1) NULLREGW PicTypeC:w 0:w // Get pic type flag
and.nz.f0.1 (1) NULLREGW BitFields:w BotFieldFlag:w // Get bottom field flag
// They are used later in this file
// Read U+V
mov (1) MSGSRC.0:ud ORIX_TOP:w { NoDDClr } // Block origin
asr (1) MSGSRC.1:ud ORIY_TOP:w 1:w { NoDDClr, NoDDChk } // NV12 U+V block origin y = half of Y comp
mov (1) MSGSRC.2:ud 0x0001000F:ud { NoDDChk } // NV12 U+V block width and height (16x2)
// Load NV12 U+V
// Set message descriptor
// Frame picture
// (f0.0) mov (1) MSGDSC DWBRMSGDSC_RC+0x00010000+BI_DEST_UV:ud // Read 1 GRF from SRC_UV
// (f0.0) jmpi Load_Top_UV_8x2
// Field picture
(f0.1) mov (1) MSGDSC RESP_LEN(1)+DWBRMSGDSC_RC_BF+BI_DEST_UV:ud // Read 1 GRF from SRC_Y bottom field
(-f0.1) mov (1) MSGDSC RESP_LEN(1)+DWBRMSGDSC_RC_TF+BI_DEST_UV:ud // Read 1 GRF from SRC_Y top field
//Load_Top_UV_8x2:
// Read 1 GRF from DEST surface as the above MB has been deblocked.
// send (8) PREV_MB_UD(0)<1> MSGHDRU MSGSRC<8;8,1>:ud MSGDSC
#endif
send (8) TOP_MB_UD(0)<1> MSGHDRU MSGSRC<8;8,1>:ud DAPREAD MSGDSC
// End of load_Top_UV_8x2.asm
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