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Diffstat (limited to 'media/libstagefright/codecs/on2/h264dec/omxdl/arm11/vc/m4p10/src/armVCM4P10_DecodeCoeffsToPair_s.s')
| -rw-r--r-- | media/libstagefright/codecs/on2/h264dec/omxdl/arm11/vc/m4p10/src/armVCM4P10_DecodeCoeffsToPair_s.s | 325 |
1 files changed, 0 insertions, 325 deletions
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm11/vc/m4p10/src/armVCM4P10_DecodeCoeffsToPair_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm11/vc/m4p10/src/armVCM4P10_DecodeCoeffsToPair_s.s deleted file mode 100644 index ac448a0..0000000 --- a/media/libstagefright/codecs/on2/h264dec/omxdl/arm11/vc/m4p10/src/armVCM4P10_DecodeCoeffsToPair_s.s +++ /dev/null @@ -1,325 +0,0 @@ -;// -;// -;// File Name: armVCM4P10_DecodeCoeffsToPair_s.s -;// OpenMAX DL: v1.0.2 -;// Revision: 9641 -;// Date: Thursday, February 7, 2008 -;// -;// (c) Copyright 2007-2008 ARM Limited. All Rights Reserved. -;// -;// -;// - - INCLUDE omxtypes_s.h - INCLUDE armCOMM_s.h - INCLUDE armCOMM_BitDec_s.h - - IMPORT armVCM4P10_CAVLCCoeffTokenTables - IMPORT armVCM4P10_CAVLCTotalZeroTables - IMPORT armVCM4P10_CAVLCTotalZeros2x2Tables - IMPORT armVCM4P10_CAVLCRunBeforeTables - IMPORT armVCM4P10_SuffixToLevel - IMPORT armVCM4P10_ZigZag_4x4 - IMPORT armVCM4P10_ZigZag_2x2 - - M_VARIANTS ARM1136JS - -;//DEBUG_ON SETL {TRUE} - -LAST_COEFF EQU 0x20 ;// End of block flag -TWO_BYTE_COEFF EQU 0x10 - -;// Declare input registers - -ppBitStream RN 0 -pOffset RN 1 -pNumCoeff RN 2 -ppPosCoefbuf RN 3 -nC RN 4 ;// number of coeffs or 17 for chroma -sMaxNumCoeff RN 5 - -;// Declare inner loop registers - -;// Level loop -Count RN 0 -TrailingOnes RN 1 -pLevel RN 2 -LevelSuffix RN 3 -SuffixLength RN 4 -TotalCoeff RN 5 - -pVLDTable RN 6 -Symbol RN 7 -T1 RN 8 -T2 RN 9 -RBitStream RN 10 -RBitBuffer RN 11 -RBitCount RN 12 -lr RN 14 - -;// Run loop -Count RN 0 -ZerosLeft RN 1 -pLevel RN 2 -ppRunTable RN 3 -pRun RN 4 -TotalCoeff RN 5 - -pVLDTable RN 6 -Symbol RN 7 -T1 RN 8 -T2 RN 9 -RBitStream RN 10 -RBitBuffer RN 11 -RBitCount RN 12 -lr RN 14 - -;// Fill in coefficients loop -pPosCoefbuf RN 0 -temp RN 1 -pLevel RN 2 -ppPosCoefbuf RN 3 -pRun RN 4 -TotalCoeff RN 5 -pZigZag RN 6 - -T1 RN 8 -T2 RN 9 -RBitStream RN 10 -RBitBuffer RN 11 -RBitCount RN 12 -CoeffNum RN 14 - - - - IF ARM1136JS - - ;// Allocate stack memory required by the function - M_ALLOC4 pppBitStream, 4 - M_ALLOC4 ppOffset, 4 - M_ALLOC4 pppPosCoefbuf, 4 - M_ALLOC4 ppLevel, 16*2 - M_ALLOC4 ppRun, 16 - - ;// Write function header - M_START armVCM4P10_DecodeCoeffsToPair, r11 - - ;// Define stack arguments - M_ARG pNC, 4 - M_ARG pSMaxNumCoeff,4 - - ;// Code start - M_BD_INIT0 ppBitStream, pOffset, RBitStream, RBitBuffer, RBitCount - LDR pVLDTable, =armVCM4P10_CAVLCCoeffTokenTables - M_LDR nC, pNC - - M_BD_INIT1 T1, T2, lr - LDR pVLDTable, [pVLDTable, nC, LSL #2] ;// Find VLD table - - M_BD_INIT2 T1, T2, lr - - ;// Decode Symbol = TotalCoeff*4 + TrailingOnes - M_BD_VLD Symbol, T1, T2, pVLDTable, 4, 2 - - MOVS TotalCoeff, Symbol, LSR #2 - STRB TotalCoeff, [pNumCoeff] - M_PRINTF "TotalCoeff=%d\n", TotalCoeff - BEQ.W EndNoError ;// Finished if no coefficients - - CMP Symbol, #17*4 - BGE.W EndBadSymbol ;// Error if bad symbol - - ;// Save bitstream pointers - M_STR ppBitStream, pppBitStream - M_STR pOffset, ppOffset - M_STR ppPosCoefbuf, pppPosCoefbuf - - ;// Decode Trailing Ones - ANDS TrailingOnes, Symbol, #3 - M_ADR pLevel, ppLevel - M_PRINTF "TrailingOnes=%d\n", TrailingOnes - BEQ TrailingOnesDone - MOV Count, TrailingOnes -TrailingOnesLoop - M_BD_READ8 Symbol, 1, T1 - SUBS Count, Count, #1 - MOV T1, #1 - SUB T1, T1, Symbol, LSL #1 - M_PRINTF "Level=%d\n", T1 - STRH T1, [pLevel], #2 - BGT TrailingOnesLoop -TrailingOnesDone - - ;// Decode level values - SUBS Count, TotalCoeff, TrailingOnes ;// Number of levels to read - BEQ DecodeRuns ;// None left - - MOV SuffixLength, #1 - CMP TotalCoeff, #10 - MOVLE SuffixLength, #0 - CMP TrailingOnes, #3 ;// if (TrailingOnes<3) - MOVLT TrailingOnes, #4 ;// then TrailingOnes = +4 - MOVGE TrailingOnes, #2 ;// else TrailingOnes = +2 - MOVGE SuffixLength, #0 ;// SuffixLength = 0 - -LevelLoop - M_BD_CLZ16 Symbol, T1, T2 ;// Symbol=LevelPrefix - CMP Symbol,#16 - BGE EndBadSymbol - - MOVS lr, SuffixLength ;// if LevelSuffixSize==0 - TEQEQ Symbol, #14 ;// and LevelPrefix==14 - MOVEQ lr, #4 ;// then LevelSuffixSize=4 - TEQ Symbol, #15 ;// if LevelSuffixSize==15 - MOVEQ lr, #12 ;// then LevelSuffixSize=12 - - TEQEQ SuffixLength,#0 - ADDEQ Symbol,Symbol,#15 - - TEQ lr, #0 ;// if LevelSuffixSize==0 - BEQ LevelCodeRead ;// LevelCode = LevelPrefix - - M_BD_VREAD16 LevelSuffix, lr, T1, T2 ;// Read Level Suffix - - MOV Symbol, Symbol, LSL SuffixLength - ADD Symbol, LevelSuffix, Symbol - -LevelCodeRead - ;// Symbol = LevelCode - ADD Symbol, Symbol, TrailingOnes ;// +4 if level cannot be +/-1, +2 o/w - MOV TrailingOnes, #2 - MOVS T1, Symbol, LSR #1 - RSBCS T1, T1, #0 ;// If Symbol odd then negate - M_PRINTF "Level=%d\n", T1 - STRH T1, [pLevel], #2 ;// Store level. - - LDR T2, =armVCM4P10_SuffixToLevel - LDRSB T1, [T2, SuffixLength] ;// Find increment level - TEQ SuffixLength, #0 - MOVEQ SuffixLength, #1 - CMP Symbol, T1 - ADDCS SuffixLength, SuffixLength, #1 - SUBS Count, Count, #1 - BGT LevelLoop - -DecodeRuns - ;// Find number of zeros - M_LDR T1, pSMaxNumCoeff ;// sMaxNumCoeff - SUB Count, TotalCoeff, #1 ;// Number of runs excluding last - SUBS ZerosLeft, T1, TotalCoeff ;// Maximum number of zeros there could be - M_ADR pRun, ppRun - MOV CoeffNum,TotalCoeff - SUB CoeffNum,CoeffNum,#1 - BEQ NoZerosLeft - - ;// Unpack number of zeros from bitstream - TEQ T1, #4 - LDREQ pVLDTable, =(armVCM4P10_CAVLCTotalZeros2x2Tables-4) - LDRNE pVLDTable, =(armVCM4P10_CAVLCTotalZeroTables-4) - LDR pVLDTable, [pVLDTable, TotalCoeff, LSL #2] - - M_BD_VLD Symbol, T1, T2, pVLDTable, 4, 2 ;// Symbol = ZerosLeft - CMP Symbol,#16 - BGE EndBadSymbol - - LDR ppRunTable, =(armVCM4P10_CAVLCRunBeforeTables-4) - M_ADR pRun, ppRun - MOVS ZerosLeft, Symbol - - ADD CoeffNum,CoeffNum,ZerosLeft - - BEQ NoZerosLeft - - ;// Decode runs while zeros are left and more than one coefficient -RunLoop - SUBS Count, Count, #1 - LDR pVLDTable, [ppRunTable, ZerosLeft, LSL#2] - BLT LastRun - M_BD_VLD Symbol, T1, T2, pVLDTable, 3, 2 ;// Symbol = Run - CMP Symbol,#15 - BGE EndBadSymbol - - SUBS ZerosLeft, ZerosLeft, Symbol - M_PRINTF "Run=%d\n", Symbol - STRB Symbol, [pRun], #1 - BGT RunLoop - - ;// Decode runs while no zeros are left -NoZerosLeft - SUBS Count, Count, #1 - M_PRINTF "Run=%d\n", ZerosLeft - STRGEB ZerosLeft, [pRun], #1 - BGT NoZerosLeft - -LastRun - ;// Final run length is remaining zeros - M_PRINTF "LastRun=%d\n", ZerosLeft - STRB ZerosLeft, [pRun], #1 - - ;// Write coefficients to output array - M_LDR T1, pSMaxNumCoeff ;// sMaxNumCoeff - TEQ T1, #15 - ADDEQ CoeffNum,CoeffNum,#1 - - - SUB pRun,pRun,TotalCoeff - SUB pLevel,pLevel,TotalCoeff - SUB pLevel,pLevel,TotalCoeff - - M_LDR ppPosCoefbuf, pppPosCoefbuf - LDR pPosCoefbuf, [ppPosCoefbuf] - TEQ T1, #4 - LDREQ pZigZag, =armVCM4P10_ZigZag_2x2 - LDRNE pZigZag, =armVCM4P10_ZigZag_4x4 - - - -OutputLoop - - LDRB T2, [pRun],#1 - LDRB T1, [pZigZag, CoeffNum] - SUB CoeffNum, CoeffNum, #1 ;// Skip Non zero - SUB CoeffNum, CoeffNum, T2 ;// Skip Zero run - - LDRSH T2, [pLevel],#2 - - SUBS TotalCoeff, TotalCoeff, #1 - ORREQ T1, T1, #LAST_COEFF - - ADD temp, T2, #128 - CMP temp, #256 - ORRCS T1, T1, #TWO_BYTE_COEFF - - - TEQ TotalCoeff, #0 ;// Preserves carry - - M_PRINTF "Output=%02x %04x\n", T1, T2 - STRB T1, [pPosCoefbuf], #1 - STRB T2, [pPosCoefbuf], #1 - MOV T2, T2, LSR #8 - STRCSB T2, [pPosCoefbuf], #1 - BNE OutputLoop - - ;// Finished - STR pPosCoefbuf, [ppPosCoefbuf] - M_LDR ppBitStream, pppBitStream - M_LDR pOffset, ppOffset - B EndNoError - -EndBadSymbol - MOV r0, #OMX_Sts_Err - B End - -EndNoError - ;// Finished reading from the bitstream - M_BD_FINI ppBitStream, pOffset - - ;// Set return value - MOV r0, #OMX_Sts_NoErr -End - M_END - - ENDIF - - END - |