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Diffstat (limited to 'media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/armVCM4P2_DecodeVLCZigzag_AC_unsafe_s.s')
| -rwxr-xr-x | media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/armVCM4P2_DecodeVLCZigzag_AC_unsafe_s.s | 398 |
1 files changed, 0 insertions, 398 deletions
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/armVCM4P2_DecodeVLCZigzag_AC_unsafe_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/armVCM4P2_DecodeVLCZigzag_AC_unsafe_s.s deleted file mode 100755 index e4a7f33..0000000 --- a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/armVCM4P2_DecodeVLCZigzag_AC_unsafe_s.s +++ /dev/null @@ -1,398 +0,0 @@ -;/** -; * -; * File Name: armVCM4P2_DecodeVLCZigzag_AC_unsafe_s.s -; * OpenMAX DL: v1.0.2 -; * Revision: 12290 -; * Date: Wednesday, April 9, 2008 -; * -; * (c) Copyright 2007-2008 ARM Limited. All Rights Reserved. -; * -; * -; * -; * Description: -; * Contains modules for zigzag scanning and VLC decoding -; * for inter, intra block. -; * -; * -; * -; * Function: omxVCM4P2_DecodeVLCZigzag_AC_unsafe -; * -; * Description: -; * Performs VLC decoding and inverse zigzag scan -; * -; * -; * -; * -; */ - - - INCLUDE omxtypes_s.h - INCLUDE armCOMM_s.h - INCLUDE armCOMM_BitDec_s.h - - - M_VARIANTS ARM1136JS - - - - - - IF ARM1136JS - - - - - -;//Input Arguments - -ppBitStream RN 0 -pBitOffset RN 1 -pDst RN 2 -shortVideoHeader RN 3 - - -;//Local Variables - -Return RN 0 - -pVlcTableL0L1 RN 4 -pLMAXTableL0L1 RN 4 -pRMAXTableL0L1 RN 4 -pZigzagTable RN 4 - -ftype RN 0 -temp3 RN 4 -temp RN 5 -Count RN 6 -Escape RN 5 - -;// armVCM4P2_FillVLDBuffer -zigzag RN 0 -storeLevel RN 1 -temp2 RN 4 -temp1 RN 5 -sign RN 5 -Last RN 7 -storeRun RN 14 - - -packRetIndex RN 5 - - -markerbit RN 5 - -;// Scratch Registers - -RBitStream RN 8 -RBitBuffer RN 9 -RBitCount RN 10 - -T1 RN 11 -T2 RN 12 -LR RN 14 - - - - M_ALLOC4 pppBitStream,4 - M_ALLOC4 ppOffset,4 - M_ALLOC4 pLinkRegister,4 - - M_START armVCM4P2_DecodeVLCZigzag_AC_unsafe - - ;// get the table addresses from stack - M_ARG ppVlcTableL0L1,4 - M_ARG ppLMAXTableL0L1,4 - M_ARG ppRMAXTableL0L1,4 - M_ARG ppZigzagTable,4 - - ;// Store ALL zeros at pDst - - MOV temp1,#0 ;// Initialize Count to zero - MOV Last,#0 - M_STR LR,pLinkRegister ;// Store Link Register on Stack - MOV temp2,#0 - MOV LR,#0 - - ;// Initialize the Macro and Store all zeros to pDst - - STM pDst!,{temp2,temp1,Last,LR} - M_BD_INIT0 ppBitStream, pBitOffset, RBitStream, RBitBuffer, RBitCount - STM pDst!,{temp2,temp1,Last,LR} - M_BD_INIT1 T1, T2, T2 - STM pDst!,{temp2,temp1,Last,LR} - M_BD_INIT2 T1, T2, T2 - STM pDst!,{temp2,temp1,Last,LR} - M_STR ppBitStream,pppBitStream ;// Store ppBitstream on stack - STM pDst!,{temp2,temp1,Last,LR} - M_STR pBitOffset,ppOffset ;// Store pBitOffset on stack - STM pDst!,{temp2,temp1,Last,LR} - - STM pDst!,{temp2,temp1,Last,LR} - STM pDst!,{temp2,temp1,Last,LR} - - - SUB pDst,pDst,#128 ;// Restore pDst - - ;// The armVCM4P2_GetVLCBits begins - -getVLCbits - - M_BD_LOOK8 Escape,7 ;// Load Escape Value - LSR Escape,Escape,#25 - CMP Escape,#3 ;// check for escape mode - MOVNE ftype,#0 - BNE notEscapemode ;// Branch if not in Escape mode 3 - - M_BD_VSKIP8 #7,T1 - CMP shortVideoHeader,#0 ;// Check shortVideoHeader flag to know the type of Escape mode - BEQ endFillVLD - - ;// Escape Mode 4 - - M_BD_READ8 Last,1,T1 - M_BD_READ8 storeRun,6,T1 - M_BD_READ8 storeLevel,8,T1 - - - ;// Check whether the Reserved values for Level are used and Exit with an Error Message if it is so - - TEQ storeLevel,#0 - TEQNE storeLevel,#128 - BEQ ExitError - - ADD temp2,storeRun,Count - CMP temp2,#64 - BGE ExitError ;// error if Count+storeRun >= 64 - - - ;// Load address of zigzagTable - - M_LDR pZigzagTable,ppZigzagTable ;// Loading the Address of Zigzag table - - - ;// armVCM4P2_FillVLDBuffer - - SXTB storeLevel,storeLevel ;// Sign Extend storeLevel to 32 bits - - - ;// To Reflect Runlength - - ADD Count,Count,storeRun - LDRB zigzag,[pZigzagTable,Count] - ADD Count,Count,#1 - STRH storeLevel,[pDst,zigzag] ;// store Level - - B ExitOk - - - -endFillVLD - - - ;// Load Ftype( Escape Mode) value based on the two successive bits in the bitstream - - M_BD_READ8 temp1,1,T1 - CMP temp1,#0 - MOVEQ ftype,#1 - BEQ notEscapemode - M_BD_READ8 temp1,1,T1 - CMP temp1,#1 - MOVEQ ftype,#3 - MOVNE ftype,#2 - - -notEscapemode - - ;// Load optimized packed VLC table with last=0 and Last=1 - - M_LDR pVlcTableL0L1,ppVlcTableL0L1 ;// Load Combined VLC Table - - - CMP ftype,#3 ;// If ftype >=3 get perform Fixed Length Decoding (Escape Mode 3) - BGE EscapeMode3 ;// Else continue normal VLC Decoding - - ;// Variable lengh decoding, "armUnPackVLC32" - - - M_BD_VLD packRetIndex,T1,T2,pVlcTableL0L1,4,2 - - - LDR temp3,=0xFFF - - CMP packRetIndex,temp3 ;// Check for invalid symbol - BEQ ExitError ;// if invalid symbol occurs exit with an error message - - AND Last,packRetIndex,#2 ;// Get Last from packed Index - - - - - LSR storeRun,packRetIndex,#7 ;// Get Run Value from Packed index - AND storeLevel,packRetIndex,#0x7c ;// storeLevel=packRetIndex[2-6],storeLevel[0-1]=0 - - - M_LDR pLMAXTableL0L1,ppLMAXTableL0L1 ;// Load LMAX table - - - LSR storeLevel,storeLevel,#2 ;// Level value - - CMP ftype,#1 - BNE ftype2 - - ;// ftype==1; Escape mode =1 - - - ADD temp1, pLMAXTableL0L1, Last, LSL#4 ;// If the Last=1 add 32 to table address - LDRB temp1,[temp1,storeRun] - - - ADD storeLevel,temp1,storeLevel - -ftype2 - - ;// ftype =2; Escape mode =2 - - M_LDR pRMAXTableL0L1,ppRMAXTableL0L1 ;// Load RMAX Table - - CMP ftype,#2 - BNE FillVLDL1 - - ADD temp1, pRMAXTableL0L1, Last, LSL#4 ;// If Last=1 add 32 to table address - SUB temp2,storeLevel,#1 - LDRB temp1,[temp1,temp2] - - - ADD storeRun,storeRun,#1 - ADD storeRun,temp1 - -FillVLDL1 - - - ;// armVCM4P2_FillVLDBuffer - - M_LDR pZigzagTable,ppZigzagTable ;// Load address of zigzagTable - - M_BD_READ8 sign,1,T1 - - CMP sign,#1 - RSBEQ storeLevel,storeLevel,#0 - - ADD temp1,storeRun,Count ;// Exit with an error message if Run + Count exceeds 63 - CMP temp1,#64 - BGE ExitError - - - - - - - ;// To Reflect Runlenght - - ADD Count,Count,storeRun - -storeLevelL1 - - LDRB zigzag,[pZigzagTable,Count] - CMP Last,#2 ;// Check if the Level val is Last non zero val - ADD Count,Count,#1 - LSR Last,Last,#1 - STRH storeLevel,[pDst,zigzag] - - BNE end - - B ExitOk - - - - ;// Fixed Lengh Decoding Escape Mode 3 - -EscapeMode3 - - M_BD_READ8 Last,1,T1 - M_BD_READ8 storeRun,6,T1 - - ADD temp2,storeRun,Count ;// Exit with an error message if Run + Count exceeds 63 - CMP temp2,#64 - BGE ExitError - - M_BD_READ8 markerbit,1,T1 - TEQ markerbit,#0 ;// Exit with an error message if marker bit is zero - BEQ ExitError - - M_BD_READ16 storeLevel,12,T1 - - TST storeLevel,#0x800 ;// test if the level is negative - SUBNE storeLevel,storeLevel,#4096 - CMP storeLevel,#0 - CMPNE storeLevel,#-2048 - BEQ ExitError ;// Exit with an error message if Level==0 or -2048 - - M_LDR pZigzagTable,ppZigzagTable ;// Load address of zigzagTable - - M_BD_READ8 markerbit,1,T1 - - - ;// armVCM4P2_FillVLDBuffer ( Sign not used as storeLevel is preprocessed) - - - - ;// To Reflect Run Length - - ADD Count,Count,storeRun - - - -storeLevelLast - - LDRB zigzag,[pZigzagTable,Count] - CMP Last,#1 - ADD Count,Count,#1 - STRH storeLevel,[pDst,zigzag] - - BNE end - - B ExitOk - -end - - CMP Count,#64 ;//Run the Loop untill Count reaches 64 - - BLT getVLCbits - - -ExitOk - ;// Exit When VLC Decoding is done Successfully - - ;// Loading ppBitStream and pBitOffset from stack - - CMP Last,#1 - M_LDR ppBitStream,pppBitStream - M_LDR pBitOffset,ppOffset - - ;//Ending the macro - - M_BD_FINI ppBitStream,pBitOffset - - MOVEQ Return,#OMX_Sts_NoErr - MOVNE Return,#OMX_Sts_Err - M_LDR LR,pLinkRegister ;// Load the Link Register Back - B exit2 - -ExitError - ;// Exit When an Error occurs - - M_LDR ppBitStream,pppBitStream - M_LDR pBitOffset,ppOffset - ;//Ending the macro - - M_BD_FINI ppBitStream,pBitOffset - M_LDR LR,pLinkRegister - MOV Return,#OMX_Sts_Err - -exit2 - - - M_END - ENDIF - - END |