2 * Copyright © <2010>, Intel Corporation.
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4 * This program is licensed under the terms and conditions of the
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5 * Eclipse Public License (EPL), version 1.0. The full text of the EPL is at
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6 * http://www.opensource.org/licenses/eclipse-1.0.php.
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9 // Module name: saveNV12_16x16.asm
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11 // Save a NV12 16x16 block
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13 //----------------------------------------------------------------
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14 // Symbols need to be defined before including this module
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16 // Source region in :ud
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17 // SRC_YD: SRC_YD Base=rxx ElementSize=4 SrcRegion=REGION(8,1) Type=ud // 8 GRFs
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18 // SRC_UD: SRC_UD Base=rxx ElementSize=4 SrcRegion=REGION(8,1) Type=ud // 4 GRF
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20 // Binding table index:
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21 // BI_DEST_Y: Binding table index of Y surface
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22 // BI_DEST_UV: Binding table index of UV surface (NV12)
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24 //----------------------------------------------------------------
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26 #if defined(_DEBUG)
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27 mov (1) EntrySignatureC:w 0xDDD4:w
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31 mov (2) MSGSRC.0<1>:ud ORIX_CUR<2;2,1>:w // Block origin
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32 mov (1) MSGSRC.2<1>:ud 0x000F000F:ud // Block width and height (16x16)
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35 mov (16) MSGPAYLOADD(0)<1> SRC_YD(0) // Compressed inst
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36 mov (16) MSGPAYLOADD(2)<1> SRC_YD(2)
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37 mov (16) MSGPAYLOADD(4)<1> SRC_YD(4)
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38 mov (16) MSGPAYLOADD(6)<1> SRC_YD(6)
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40 send (8) NULLREG MSGHDR MSGSRC<8;8,1>:ud DAPWRITE MSG_LEN(8)+DWBWMSGDSC+BI_DEST_Y // Write 8 GRFs
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44 asr (1) MSGSRC.1:ud MSGSRC.1:ud 1:w // NV12 U+V block origin y = half of Y comp
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45 mov (1) MSGSRC.2<1>:ud 0x0007000F:ud // NV12 U+V block width and height (16x8)
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47 mov (16) MSGPAYLOADD(0)<1> SRC_UD(0) // Compressed inst
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48 mov (16) MSGPAYLOADD(2)<1> SRC_UD(2)
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50 send (8) NULLREG MSGHDR MSGSRC<8;8,1>:ud DAPWRITE MSG_LEN(4)+DWBWMSGDSC+BI_DEST_UV // Write 4 GRFs
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53 // End of saveNV12_16x16.asm
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