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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: saveNV12_16x4.asm
//
// Save a NV12 16x4 block
//
//----------------------------------------------------------------
// 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 // 2 GRFs
// SRC_UD: SRC_UD Base=rxx ElementSize=4 SrcRegion=REGION(8,1) Type=ud // 1 GRF
//
// Binding table index:
// BI_DEST_Y: Binding table index of Y surface
// BI_DEST_UV: Binding table index of UV surface (NV12)
//
//----------------------------------------------------------------
#if defined(_DEBUG)
mov (1) EntrySignatureC:w 0xDDD5:w
#endif
mov (2) MSGSRC.0<1>:ud ORIX_TOP<2;2,1>:w // Block origin
mov (1) MSGSRC.2<1>:ud 0x0003000F:ud // Block width and height (16x4)
// Pack Y
mov (16) MSGPAYLOADD(0)<1> SRC_YD(0) // Compressed inst
send (8) NULLREG MSGHDR MSGSRC<8;8,1>:ud DAPWRITE MSG_LEN(2)+DWBWMSGDSC+BI_DEST_Y // Write 2 GRFs
asr (1) MSGSRC.1:ud MSGSRC.1:ud 1:w // NV12 U+V block origin y = half of Y comp
mov (1) MSGSRC.2<1>:ud 0x0001000F:ud // NV12 U+V block width and height (16x2)
// Pack U and V
// mov (16) MSGPAYLOADB(0,0)<2> SRC_UB(0,0)
// mov (16) MSGPAYLOADB(0,1)<2> SRC_VB(0,0)
mov (8) MSGPAYLOADD(0,0)<1> SRC_UD(0)
send (8) NULLREG MSGHDR MSGSRC<8;8,1>:ud DAPWRITE MSG_LEN(1)+DWBWMSGDSC+BI_DEST_UV // Write 1 GRF
// End of saveNV12_16x4.asm
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