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_Left_UV_2X8T.Asm
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11 // Load UV 8X2 Block
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13 //----------------------------------------------------------------
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14 // Symbols ceed To be defined before including this module
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16 // Source Region Is :UB
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17 // BUF_D: BUF_D Base=Rxx Elementsize=4 Srcregion=Region(8,1) Type=UD
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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 0xDDD0:w
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28 #if defined(_PROGRESSIVE)
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30 mov (1) MSGSRC.0:ud ORIX_LEFT:w { NoDDClr } // Block origin
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31 asr (1) MSGSRC.1:ud ORIY_LEFT: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 0x00070003:ud { NoDDChk } // NV12 U+V block width and height (4x8)
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34 send (8) LEFT_TEMP_D(0)<1> MSGHDRU MSGSRC<8;8,1>:ud DAPREAD RESP_LEN(1)+DWBRMSGDSC_RC+BI_DEST_UV
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37 #if defined(_FIELD) || defined(_MBAFF)
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39 // FieldModeCurrentMbFlag determines how to access left MB
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40 and.z.f0.0 (1) null:w r[ECM_AddrReg, BitFlags]:ub FieldModeCurrentMbFlag:w
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42 and.nz.f0.1 (1) NULLREGW BitFields:w BotFieldFlag:w // Get bottom field flag
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45 mov (1) MSGSRC.0:ud ORIX_LEFT:w { NoDDClr } // Block origin
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46 asr (1) MSGSRC.1:ud ORIY_LEFT:w 1:w { NoDDClr, NoDDChk } // NV12 U+V block origin y = half of Y comp
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47 mov (1) MSGSRC.2:ud 0x00070003:ud { NoDDChk } // NV12 U+V block width and height (4x8)
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51 // Set message descriptor
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53 (f0.0) if (1) ILDB_LABEL(ELSE_Y_2x8T)
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56 mov (1) MSGDSC RESP_LEN(1)+DWBRMSGDSC_RC+BI_DEST_UV:ud // Read 1 GRF from SRC_UV
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58 (f0.1) add (1) MSGSRC.1:d MSGSRC.1:d 8:w // Add vertical offset 8 for bot MB in MBAFF mode
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60 ILDB_LABEL(ELSE_Y_2x8T):
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61 else (1) ILDB_LABEL(ENDIF_Y_2x8T)
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64 (f0.1) mov (1) MSGDSC RESP_LEN(1)+DWBRMSGDSC_RC_BF+BI_DEST_UV:ud // Read 1 GRF from SRC_Y bottom field
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65 (-f0.1) mov (1) MSGDSC RESP_LEN(1)+DWBRMSGDSC_RC_TF+BI_DEST_UV:ud // Read 1 GRF from SRC_Y top field
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68 ILDB_LABEL(ENDIF_Y_2x8T):
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70 // Read 1 GRF from DEST surface as the above MB has been deblocked.
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71 // send (8) BUF_D(0)<1> MSGHDRU MSGSRC<8;8,1>:ud MSGDSC
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72 send (8) LEFT_TEMP_D(0)<1> MSGHDRU MSGSRC<8;8,1>:ud DAPREAD MSGDSC
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76 // End of load_Left_UV_2x8T.asm
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