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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_16x16.asm
//
// Save a NV12 16x16 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 // 8 GRFs
// SRC_UD: SRC_UD Base=rxx ElementSize=4 SrcRegion=REGION(8,1) Type=ud // 4 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 0xDDD4:w
#endif
mov (2) MSGSRC.0<1>:ud ORIX_CUR<2;2,1>:w // Block origin
mov (1) MSGSRC.2<1>:ud 0x000F000F:ud // Block width and height (16x16)
// Pack Y
mov (16) MSGPAYLOADD(0)<1> SRC_YD(0) // Compressed inst
mov (16) MSGPAYLOADD(2)<1> SRC_YD(2)
mov (16) MSGPAYLOADD(4)<1> SRC_YD(4)
mov (16) MSGPAYLOADD(6)<1> SRC_YD(6)
send (8) NULLREG MSGHDR MSGSRC<8;8,1>:ud DAPWRITE MSG_LEN(8)+DWBWMSGDSC+BI_DEST_Y // Write 8 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 0x0007000F:ud // NV12 U+V block width and height (16x8)
mov (16) MSGPAYLOADD(0)<1> SRC_UD(0) // Compressed inst
mov (16) MSGPAYLOADD(2)<1> SRC_UD(2)
send (8) NULLREG MSGHDR MSGSRC<8;8,1>:ud DAPWRITE MSG_LEN(4)+DWBWMSGDSC+BI_DEST_UV // Write 4 GRFs
// End of saveNV12_16x16.asm
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