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: load_Cur_UV_8x8T.asm
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11 // Load and transpose UV 8x8 block (NV12: 8x8U and 8x8V mixed)
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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_UD: SRC_UD Base=rxx ElementSize=4 SrcRegion=REGION(8,1) Type=ud (U+V for NV12) // 4 GRFs
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19 // Binding table index:
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20 // BI_SRC_UV: Binding table index of UV surface (NV12)
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22 //----------------------------------------------------------------
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24 #if defined(_DEBUG)
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25 mov (1) EntrySignatureC:w 0xDDD1:w
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29 #if defined(_PROGRESSIVE)
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30 mov (1) MSGSRC.0:ud ORIX_CUR:w { NoDDClr } // Block origin
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31 asr (1) MSGSRC.1:ud ORIY_CUR:w 1:w { NoDDClr, NoDDChk } // NV12 U+V block origin y = half of Y comp
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32 mov (1) MSGSRC.2:ud 0x0007000F:ud { NoDDChk } // NV12 U+V block width and height (16x8 bytes)
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34 //send (8) SRC_UD(0)<1> MSGHDRU MSGSRC<8;8,1>:ud DWBRMSGDSC_SC+0x00040000+BI_SRC_UV
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35 mov (1) MSGDSC RESP_LEN(4)+DWBRMSGDSC_SC+BI_SRC_UV:ud
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39 // cmp.z.f0.0 (1) NULLREGW PicTypeC:w 0:w // Get pic type flag
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40 and.nz.f0.1 (1) NULLREGW BitFields:w BotFieldFlag:w // Get bottom field flag
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41 // they are used later in this file
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43 mov (1) MSGSRC.0:ud ORIX_CUR:w { NoDDClr } // Block origin
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44 asr (1) MSGSRC.1:ud ORIY_CUR:w 1:w { NoDDClr, NoDDChk } // NV12 U+V block origin y = half of Y comp
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45 mov (1) MSGSRC.2:ud 0x0007000F:ud { NoDDChk } // NV12 U+V block width and height (16x8 bytes)
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47 // Set message descriptor
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50 // (f0.0) mov (1) MSGDSC RESP_LEN(4)+DWBRMSGDSC_SC+BI_SRC_UV:ud // Read 4 GRFs from SRC_UV
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51 // (f0.0) jmpi load_UV_8x8T
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54 (f0.1) mov (1) MSGDSC RESP_LEN(4)+DWBRMSGDSC_SC_BF+BI_SRC_UV:ud // Read 4 GRFs from SRC_UV bottom field
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55 (-f0.1) mov (1) MSGDSC RESP_LEN(4)+DWBRMSGDSC_SC_TF+BI_SRC_UV:ud // Read 4 GRFs from SRC_UV top field
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61 send (8) SRC_UD(0)<1> MSGHDRU MSGSRC<8;8,1>:ud DAPREAD MSGDSC
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63 // #include "Transpose_Cur_UV_8x8.asm"
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65 // End of load_UV_8x8T
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