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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_Y_16X4.asm
//
// Load Y 16X4 Block to PREV_MB_YD
//
//----------------------------------------------------------------
// Symbols Need To Be Defined Before Including This Module
//
// Source Region In :Ud
// Src_YD: Src_Yd Base=Rxx Elementsize=4 Srcregion=Region(8,1) Type=Ud // 3 Grfs (2 For Y, 1 For U+V)
//
// Source Region Is :Ub. The Same Region As :Ud Region
// Src_YB: Src_Yb Base=Rxx Elementsize=1 Srcregion=Region(16,1) Type=Ub // 2 Grfs
//
// Binding Table Index:
// Bi_Src_Y: Binding Table Index Of Y Surface
//
// Temp Buffer:
// Buf_D: Buf_D Base=Rxx Elementsize=4 Srcregion=Region(8,1) Type=Ud
// Buf_B: Buf_B Base=Rxx Elementsize=1 Srcregion=Region(16,1) Type=Ub
//
//----------------------------------------------------------------
#if defined(_DEBUG)
mov (1) EntrySignatureC:w 0xDDD2:w
#endif
#if defined(_PROGRESSIVE)
// Read Y
mov (2) MSGSRC.0<1>:ud ORIX_TOP<2;2,1>:w { NoDDClr } // Block origin
mov (1) MSGSRC.2<1>:ud 0x0003000F:ud { NoDDChk } // Block width and height (16x4)
mov (1) MSGDSC RESP_LEN(2)+DWBRMSGDSC_RC+BI_DEST_Y:ud // Read 2 GRFs from SRC_Y
#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
mov (2) MSGSRC.0<1>:ud ORIX_TOP<2;2,1>:w { NoDDClr } // Block origin
mov (1) MSGSRC.2<1>:ud 0x0003000F:ud { NoDDChk } // Block width and height (16x4)
// Set message descriptor
// Frame picture
// (f0.0) mov (1) MSGDSC DWBRMSGDSC_RC+0x00020000+BI_DEST_Y:ud // Read 2 GRFs from SRC_Y
// (f0.0) jmpi load_Y_16x4
// Field picture
(f0.1) mov (1) MSGDSC RESP_LEN(2)+DWBRMSGDSC_RC_BF+BI_DEST_Y:ud // Read 2 GRFs from SRC_Y bottom field
(-f0.1) mov (1) MSGDSC RESP_LEN(2)+DWBRMSGDSC_RC_TF+BI_DEST_Y:ud // Read 2 GRFs from SRC_Y top field
//load_Y_16x4:
// Read 2 GRFs from DEST surface, as the above MB has been deblocked
// send (8) PREV_MB_YD(0)<1> MSGHDRY MSGSRC<8;8,1>:ud MSGDSC
#endif
send (8) TOP_MB_YD(0)<1> MSGHDRT MSGSRC<8;8,1>:ud DAPREAD MSGDSC
// End of load_Y_16x4.asm
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