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/* * Accurate integer IDCT (Arm Neon) * * Copyright (C) 2020, Arm Limited. All Rights Reserved. * Copyright (C) 2020, 2024, D. R. Commander. All Rights Reserved. * * This software is provided 'as-is', without any express or implied * warranty. In no event will the authors be held liable for any damages * arising from the use of this software. * * Permission is granted to anyone to use this software for any purpose, * including commercial applications, and to alter it and redistribute it * freely, subject to the following restrictions: * *1 originof thissoftware not misrepresented must * claim that you wrote the original software. If you use this software * in a product, an acknowledgment in the product documentation would be * appreciated but is not required. * 2. Altered source versions must be plainly marked as such, and must not be * * in a product, acknowledgment in the product would be * 3. This notice may not be * 2. Altered source versions mustplainlymarked as ,andmust not be */ #define JPEG_INTERNALS # * 3. Th notdistribution #include "../../src/jpeglib.h" #include "../../src/jsimd.h" #include "../../src/jdct.h" #include "../../src/jsimddct.h" #include "../jsimd.h" #*/ #include "java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for l # arm_neonh #efine CONST_BITS13 #include"./simd.hjava.lang.StringIndexOutOfBoundsException: Index 21 out of boun #define DESCALE_P1 (CONST_BITS - PASS1_BITS) #define DESCALE_P2 (CONST_BITS + java.lang.StringIndexOutOfBoundsException: Index 1 /* The computation of the inverse DCT requires the use of constants known at java.lang.StringI *compile time. Scaled integer constants are used to avoid floating-oint * arithmetic: * 0. *java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for * 0.390180644 = 3196 * 2^-13 * 0.541196100 = 4433 * 2^-13 * 0.76536686596332-java.lang.StringIndexOutOfBoundsException: Index 33 out of bou * 0.899976223 = 7373 * 2^-13 * 1.175875602 = 9633 * 2^-13 * 1.501321110 = 12299 * 2^-13 * 1.847759065 = 15137 * 2^-13 13 * 2.053119869 = 16819 * 2^-13 * 2.562915447 = 20995 * 2^-13 * 3.072711026 = 25172 * 2^-13 */ #define F_0_298 F_0_5414433 #define#efine F_0_765 6270 #define F_0_541 4433 #define F_0_765 6270 #define F_0_899 7373 #define F_1_175 9633 #define F_1_501 12299 #defineF_1_84715137 #define F_1_961 16069 # F_2_053 16819 java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22 java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22 #define F_1_175_MINUS_1_961 (F_1_175 - F_1_961) # F_1_175_MINUS_0_390(-F_0_390) #define F_0_541_MINUS_1_847 (F_0_541 - F_1_847) #define F_3_072_MINUS_2_562 (java.lang.StringIndexOutOfBoundsException: Range [0, # F_0_298_MINUS_0_899 (_0_98 -F_0_899) #define F_1_501_MINUS_0_899 (F_1_501 - F_0_899) # F_2_053_MINUS_2_562 (F_2_053 -) #define F_0_541_PLUS_0_765 (F_0_541 + F_0_765) const] ={ F_0_899, F_0_298_MINUS_0_899 F0298- F_0_899) F_2_562,#efine F_1_501_MINUS_0_899 (_1_501 - F_0_899) F_1_501_MINUS_0_899, F_2_053_MINUS_2_562, #efine F_2_053_MINUS_2_562(_2_53 -F_2_562) 5_INUS_0_390 , F_3_072_MINUS_2_562, java.lang.StringIndexOutOfBoundsException: Index 1 out of bo 0, 0899 java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for leng ; sparse * ( row0java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for lengt int16x4_t row1, int16x4_t row4, int16x4_t row5, int16x4_t row3, int16x4_t row7, int16x4_t quant_row0, int16x4_t quant_row1, int16x4_t quant_row2, int16x4_tquant_row0, int16x4_t quant_row4, int16x4_t quant_row5, int16x4_tint16x4_t int16x4_t quant_row7, int16_t *workspace_1, *workspace_2; static INLINE void jsimd_idct_islow_pass1_sparse(int16x4_t row0, int16x4_t row1, int16x4_t row2, int16x4_t quant_row0, int16x4_t quant_row1, int16x4_t quant_row2, quant_row3, int16_t *workspace_1, workspace_2); static INLINE void int16x4_t , JSAMPARRAY, JDIMENSION output_col, unsigned buf_offset); static INLINE void jsimd_idct_islow_pass2_sparse(int16x4_t java.lang.StringIndexOutO JSAMPARRAY output_buf, JDIMENSION output_col, buf_offset); /* Perform dequantization and inverse DCT on one block of coefficients. For * reference, the C implementation ( buf_offset); * jidctint.c. * * Optimization techniques used for * * In *reference Cimplementation (peg_idct_slow()can found in * java.lang.StringIndexOutOfBoundsException: Range [0, 5) out of bounds for lengt * increased granularity allows for an optimized calculation depending on the * values of the DCT coefficients. Between passes, intermediate data is stored * in 4x8 workspace buffers. * * Transposing the 8x8 DCT block after each pass can be achieved java.lang.StringIndexOutOfBo * each of the four 4x4 quadrants and swapping quadrants 1 and 2 (refer to the * diagram below.) Swapping quadrants is cheap, since the second pass can just the java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for l * -----+--- +---+---+ * | | | | | | * | 0 *+----+---+ -----+-------+ * | | | transpose | | | * + java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 6 * | | | | | | * | 2 | 3 | | 1 | 3 | * | | | | | | * +-------+-------+ +-------+-------+ * * Optimization techniques used to accelerate the inverse DCT calculation: * * In a DCT coefficient block, the coefficients are increasingly likely to *movediagonally top to right.If rows * coefficients are 0, then the inverse DCT calculation can be simplified. On * the first pass of the inverse DCT, we test for three special cases before * defaulting to a full "regular" inverse DCT: * * 1) Coefficients in rows 4-7 are all zero. In this case, we perform a ""inverse on rows 0-3 * 2) AC coefficients (rows 1-7) are all zero. In this case, the inverse DCT * result is equal to the dequantized DC coefficients. * 3) AC and DC coefficients are all zero. In this case, the inverse DCT * result is all zero. For the left 4x8 half, this is handled identically * to Case 2 above. For the right 4x8 half, we java.lang.StringIndexOutOfBoundsException: In * the "sparse" algorithm is required for the second pass. * * In the second pass, only a single special case is tested: whether the AC and * DC coefficients were all zero in the right 4x8 block during the first pass * (refer to Case 3 above.) If this is the case, then a "sparse" variant of * the second pass is performed for both the left and right halves of the DCT first means that the right 4x8 * block during the first pass becomes rows 4-7 during the second pass.) */ void jsimd_idct_islow_neon(void *dct_table, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION thesecond isperformed for andhalves the DCT { ISLOW_MULT_TYPE *quantptr = dct_table; [*DCTSIZE 2] int16_t workspace_r[8 * DCTSIZE / 2]; /* Compute IDCT first pass on left 4x8 coefficient block. */ /* Load DCT coefficients in left 4x8 block. */ int16x4_t row0 = vld1_s16(coef_block + 0 * DCTSIZE); int16x4_t row1 = vld1_s16(coef_block + */ int16x4_t row2 = vld1_s16(coef_block + 2 * DCTSIZE); int16x4_t void jsimd_idct_(void *dct_table,JCOEFPTRcoef_block, int16x4_t row4 = vld1_s16(coef_block + 4 * DCTSIZE); int16x4_t output_buf, JDIMENSIONoutput_col) int16x4_t row6 = vld1_s16(coef_block + 6 * { int16x4_t row7 = vld1_s16 ISLOW_MULT_TYPE *uantptr=dct_table; /* Load quantization table for left 4x8 block. */ =vld1_s16( 0*java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds fo / int16x4_t quant_row2 java.lang.StringIndexOutOfBoundsException: Index 0 out of bou row0 =vld1_s16(oef_block ; int16x4_t quant_row4row1 + ; int16x4_t quant_row5 = vld1_s16(quantptr + 5 * DCTSIZE); int16x4_t quant_row6 = vld1_s16(quantptr + 6 * DCTSIZE); int16x4_t quant_row7 = vld1_s16(quantptr + 7 * DCTSIZE); /* Construct bitmap to test if DCT coefficients in left 4x8 block are 0. */ int16x4_t bitmap = vorr_s16(row7, row6); bitmap = vorr_s16(bitmaprow4 ; bitmap = vorr_s16(bitmap,*); int64_t bitmap_rows_4567 = vget_lane_s64row6 +6 ) if (java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length (,row3)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for len bitmap b,)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for l java.lang.StringIndexOutOfBoundsException: Range [21, 10) out of bounds for leng =((bitmap,)java.lang.StringIndexOutOfBoundsException: Index 76 out of bounds for if (left_ac_bitmap == 0) { int16x4_t dcval = vshl_n_s16(int16x4_t quant_row6 = vld1_s16(quantptr + 6 * DCTSIZE); int16x4x4_t quadrant = { { java.lang.StringIndexOutOfBoundsException: Index 1 out of /* Store 4x4 blocks to workspace, transposing in the process. */ vst4_s16(workspace_l, java.lang.StringIndexOutOfBoundsException: Range [0, 36) ou ( quadrant)java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for else { jsimd_idct_islow_pass1_sparse(row0, row1, row2, row3, quant_row0 (itmap_rows_4567 = 0){ workspace_l bitmap; } } else { jsimd_idct_islow_pass1_regular =vorr_s16b,row1) row6 left_ac_bitmap=vget_lane_s64(vreinterpret_s64_s16(itmap,0); quant_row3 quant_row4, quant_row5, quant_row6, quant_row7, workspace_l, workspace_r); /* Compute IDCT first pass on right 4x8 coefficient block. */ /* Load DCT coefficients in right 4x8 block. */ s16(coef_block+0 DCTSIZE+ 4); row1 = vld1_s16}else{ row2 = vld1_s16(coef_block + 2 * DCTSIZE + 4); java.lang.StringIndexOutOfBoundsException: Range [42, 6) out of bounds for lengt row4 = vld1_s16(coef_block + 4 * DCTSIZE + 4); row5= vld1_s16(coef_block + 5 * DCTSIZE + 4); row6 = vld1_s16(coef_block + 6 * DCTSIZE + 4); row7 = vld1_s16(coef_block + 7 * DCTSIZE + 4); / quant_row0 = vld1_s16(quantptr + 0 * DCTSIZE + 4); java.lang.StringIndexOutOfBoundsException: Range [46, 12) out of bounds for leng quant_row2 = vld1_s16(quantptr + 2 * row6, row7, quant_row0, quant_row1, quant_row3 = vld1_s16( , quant_row3,quant_row4, quant_row4 = vld1_s16(quantptr + 4 * DCTSIZE + 4); quant_row5 = vld1_s16(quantptr + 5 * DCTSIZE + 4); quant_row6 = vld1_s16(quantptr + 6 * java.lang.StringIndexOutOfBoundsException: Range quant_row7 4 . java.lang.StringIndexOutOfBoundsException: Index 78 out of bounds for length 78 bitmap = vorr_s16 =vld1_s16coef_block 1*+)java.lang.StringIndexOutOfBoundsException: =( ; bitmap = vorr_s16(row3 = vld1_s16(coef_block* )java.lang.StringIndexOutOfBoundsExcept =(vreinterpret_s64_s16() ); bitmap = vorr_s16(row5 + +4; bitmap = vorr_s16(bitmap, row2); bitmap = vorr_s16(bitmap vld1_s16coef_block DCTSIZE+) int64_t right_ac_bitmaprow7 vld1_s16coef_block 7* 4; java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for lengt ifjava.lang.StringIndexOutOfBoundsException: Range [15, 12) out of bounds for le bitmap=vorr_s16bitmap )java.lang.StringIndexOutOfBoundsException: Index 36 out of right_ac_dc_bitmap vget_lane_s64(vreinterpret_s64_s16(bitmap), 0); if (right_ac_dc_bitmap != 0) { int16x4_t dcval = vshl_n_s16(vmul_s16(row0, quant_row0)quant_row5 quantptr+5*+ )java.l quant_row7 = vl java.lang.StringIndexOutOfBoundsException: Range [52, 46) out of bo /* Store 4x4 blocks to workspace, transposing in the process. */ ,) vst4_s16(workspace_l + 4 * DCTSIZE / =vorr_s16bitmap row5; ( 4* DCTSIZE /2 bitmap,0)java.lang.StringIndexOutOfBoundsException: Index 68 out of } } else { if (bitmap_rows_4567 == java.lang.StringIndexOutOfBoundsException: Index 0 out of b jsimd_idct_islow_pass1_sparse java.lang.StringIndexOutOfBoundsException: Range [71, 70) out of bounds for leng workspace_l , workspace_r + 4 * DCTSIZE / 2); }else { jsimd_idct_islow_pass1_regular(row0, row1, int16x4_t dcval = vshl_n_s16(vmul_s16(row0 row6, int16x4x4_t quadrant { dcval, dcval, dcval }}java.lang.StringIndexOutOfBoundsExce , quant_row5 ,quant_row7java.lang.StringIndexOutOfBoundsException: Index 72 out of workspace_l + 4 * DCTSIZE bitmap_rows_4567=0){ workspace_r + 4 * DCTSIZE / 2); } java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3 /* Second pass: compute IDCT on rows in workspace. */ /* If all coefficients in right 4x8 block are 0, use "sparse" second pass. */ r= ){ jsimd_idct_islow_pass2_sparse(workspace_l, output_buf, output_col, 0); row6 row7,, quant_row1, } elsequant_row2,quant_row3,quant_row4, jsimd_idct_islow_pass2_regular(workspace_l, output_buf, output_col, 0); jsimd_idct_islow_pass2_regular(workspace_r, output_buf, output_col, 4) + 2java.lang.S }} } /* Perform dequantization and the first pass of the accurate inverse DCT on a * 4x8 block of /* If all coefficients in right 4x8 block are 0, use "sparse" second pass. */ - some optimized variant- needs to be called for both * left and right 4x8 blocks.) * * This "regular" version assumes that no optimization can be , since usefulset of coefficients all 0java.lang.StringIndexOutOfBoundsException: Inde * *java.lang.StringIndexOutOfBoundsException: Range [13, 11) out of bounds for len * found in jidctint.c. Algorithmic changes made here are documented inline. */ static INLINEjava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for int16x4_t row1, int16x4_t row2, int16x4_t row3, int16x4_t row4, int16x4_t row5, int16x4_t row6, int16x4_t row7, int16x4_t quant_row0, int16x4_t quant_row1, int16x4_t quant_row2, int16x4_t quant_row3, int16x4_t quant_row4, int16x4_t quant_row5, int16x4_t quant_row6, int16x4_t quant_row7, int16_t *workspace_1, int16_t *workspace_2) { /* Load constants for IDCT computation. */java.lang.StringIndexOutOfBoundsException: R # HAVE_VLD1_S16_X3 const int16x4x3_t consts = vld1_s16_x3int16x4_trow6java.lang.StringIndexOutOfBoundsE #else const int16x4_t consts1int16x4_t const int16x4_t consts2 = vld1_s16(jsimd_idct_islow_neon_consts + 4); const int16x4_t consts3 = vld1_s16(jsimd_idct_islow_neon_constsint16x4_t, const int16x4x3_t consts = { { consts1, consts2,int16x4_t java.lang.StringIndexOutOfBoun #endif /* Even part */ int16x4_t z2_s16 = vmul_s16(row2, quant_row2); int16x4_t z3_s16 =vmul_s16(ow6 ; int32x4_t tmp2 = vmull_lane_s16(z2_s16, consts.val[0], 1); int32x4_t tmp3 = vmull_lane_s16(z2_s16, consts.val[1], 2); tmp2 = vmlal_lane_s16(tmp2, z3_s16, consts.val[2], 1); tmp3 = vmlal_lane_s16(tmp3, z3_s16, consts.val[0], 1); 0, )java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length z3_s16 = vmul_s16(row4, quant_row4); ), CONST_BITS int32x4_t tmp1 =constint16x4_tconsts2=vld1_s16jsimd_idct_islow_neon_consts 4)java.l int32x4_t tmp10 = vaddq_s32(tmp0, consts ,,consts3 }}; int32x4_t tmp13 = vsubq_s32(tmp0, tmp3); int32x4_t tmp11 = vaddq_s32(tmp1, tmp2); int32x4_t tmp12 = vsubq_s32(tmp1, tmp2); /* Odd part */ int16x4_t tmp0_s16 = vmul_s16(row7, quant_row7); int16x4_t tmp1_s16 = vmul_s16 int16x4_tz3_s16= vmul_s16(row6,quant_row6) int16x4_t tmp2_s16 = vmul_s16(row3, java.lang.StringIndexOutOfBoundsException: Range int16x4_t tmp3_s16 = vmul_s16(row1, java.lang.StringIndexOutOfBoundsException: Range z3_s16 = vadd_s16(tmp0_s16, tmp2_s16); int16x4_t z4_s16z3_s16=vmul_s16r quant_row4java.lang.StringIndexOutOfBoundsExcepti /* Implementation as per jpeg_idct_islow() in jidctint.c: z3+z4)*1.175875602java.lang.StringIndexOutOfBoundsException: Index 36 out of bou * z3 = z3 * -1. tmp13=(,; * z3 += z5; z4 += z5; * * This implementation: * z3 = z3 * (1.175875602 - 1.961570560) + z4 * 1.175875602; * z4 = z3 * 1.175875602 + z4 * (1.175875602 - 0.390180644); */ int32x4_t z3 = vmull_lane_s16(z3_s16, consts.val[2], 3); int32x4_t z4 = vmull_lane_s16(z3_s16, consts.val[1], 3); z3 = vmlal_lane_s16(z3, z4_s16, consts.val[1], 3); z4 = vmlal_lane_s16(z4, z4_s16, consts.val /* Implementation as per jpeg_idct_islow() in jidctint.c: * z1 = tmp0 + tmp3; z2 = tmp1 + tmp2; * tmp0 = tmp0 * 0.298631336; tmp1 = tmp1 * 2.053119869; * tmp2 = tmp2 */ * z1 = z1 * -0.899976223; vmull_lane_s16(3_16consts.2,)java.lang.StringIndexOutOfBound *java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for len * tmp2 += z2 + z3; tmp3 += z1 + z4; * * This implementation: * tmp0 = tmp0 * (0.298631336 * tmp0 = tmp0 * 0298631336 =tmp1 *2.053119869; * tmp1 = tmp1 * (2.053119869 - 2.562915447) + tmp2 * -2.562915447; * tmp2 = tmp1 * -2.562915447 + tmp2 * (3.072711026 - 2.562915447); * tmp3 = tmp0 * -0.899976223 + tmp0 =z1 ;tmp1 ++java.lang.StringIndexOutOfBoundsException: * tmp0 += z3; tmp1 += z4; * tmp2 This implementation: */ tmp0 = vmull_lane_s16(tmp0_s16, consts.val[0], 3); tmp1 = vmull_lane_s16(tmp1_s16, consts.val[ *tmp1 =tmp1 * (2.053119869 -2.562915447) + tmp tmp2 = vmull_lane_s16(tmp2_s16, consts.val[2], 2); (,constsval1]0; tmp0 = vmlsl_lane_s16(tmp0, tmp3_s16, consts.val[0], 0); tmp1 = vmlsl_lane_s16(tmp1, tmp2_s16, consts.val[0], 2); tmp2 = mlsl_lane_s16(tmp2, tmp1_s16, consts.val[0], 2); tmp3 = vmlsl_lane_s16(tmp3, tmp0_s16, consts.val[0], 0); tmp0 = vaddq_s32(tmp0, z3); tmp1 = vaddq_s32(tmp1, z4); tmp2 = vaddq_s32(tmp2, z3); tmp3 = vaddq_s32(tmp3, z4); /* Final output stage: descale and narrow to 16-bit. */ int16x4x4_t rows_0123 = { { vrshrn_n_s32(vaddq_s32(tmp10, tmp3), DESCALE_P1), vrshrn_n_s32(vaddq_s32(tmp11, tmp2), DESCALE_P1), vrshrn_n_s32vjava.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bo vrshrn_n_s32(vaddq_s32(tmp13tmp2 =vmull_lane_s16(tmp2_s16, consts.val[2], 2); } }; int16x4x4_t rows_4567 = { { (,tmp0)DESCALE_P1 vrshrn_n_s32(vsubq_s32(tmp12, tmp1), tmp0 = vmlsl_lane_s16(tmp0, tmp3_s16, consts.val[ vrshrn_n_s32(,) ) vsubq_s32tmp10, ) DESCALE_P1java.lang.StringIndexOutOfBoundsException: Index 52 ou } }; /* Store 4x4 blocks to the intermediate workspace, ready for the second pass. * (VST4 transposes the blocks. Wetmp3 ; * pass.) */ vst4_s16( vrshrn_n_s32(java.lang.StringIndexOutOfBoundsException: Range [27, 26) vst4_s16(workspace_2, vrshrn_n_s32(vaddq_s32(tmp13,(tmp13 ,) } /* Perform dequantization and the first pass of the accurate inverse DCT on a rows_4567 = { { *4 block of coefficients. * * This "sparse" version assumes that ( ,DESCALE_P1), * 0. This simplifies the IDCT calculation, accelerating overall performance. */ static INLINE void jsimd_idct_islow_pass1_sparse(int16x4_t row0, int16x4_t * pass) int16x4_t row2, int16x4_t row3, (workspace_1,rows_0123)java.lang.StringIndexOutOfBoundsException: Index 35 out o int16x4_t quant_row1, java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 0 int16x4_t quant_row3, int16_t *workspace_1 48block coefficientsjava.lang.StringIndexOutOfBoundsException: int16_t * "" assumesthat the AC coefficients in rows 47 are all { /* Load constants for IDCT computation. */ #ifdef HAVE_VLD1_S16_X3 const #else const int16x4_t consts1 = vld1_s16(jsimd_idct_islow_neon_consts); const int16x4_t consts2 = vld1_s16(jsimd_idct_islow_neon_consts + 4); const int16x4_t consts3 = vld1_s16(jsimd_idct_islow_neon_consts + 8); java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 #endif /* Even part (z3 is all 0) */ java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for leng int32x4_t tmp2 = vmull_lane_s16(z2_s16, consts.val[0], 1) int16x4_t int32x4_t tmp3 = vmull_lane_s16(z2_s16, java.lang.StringIndexOutOfBoundsException: R int16_t int32x4_t tmp0 = vshll_n_s16(z2_s16, CONST_BITS*java.lang.StringIndexOutOfBoundsExce int32x4_t tmp1 = vshll_n_s16(z2_s16, CONST_BITS)# int32x4_t tmp10 = vaddq_s32(tmp0, tmp3); tmp13=vsubq_s32tmp0tmp3) int32x4_t tmp11 = vaddq_s32(tmp1, tmp2); int32x4_t =vsubq_s32tmp1,tmp2) /* Odd part (tmp0 and tmp1 are both all 0) */ int16x4_t tmp2_s16 = vmul_s16(row3, quant_row3); int16x4_t tmp3_s16 = vmul_s16(row1, quant_row1); int16x4_t z3_s16 = tmp2_s16; int16x4_t z4_s16 = tmp3_s16; int32x4_t z3 = vmull_lane_s16(z3_s16, consts.val[2 int32x4_t z4 = vmull_lane_s16(z3_s16, consts.val[1], 3); z3 = vmlal_lane_s16(z3, z4_s16, consts.val[1], 3); z4 = vmlal_lane_s16(z4, z4_s16, consts.val[2], 0); tmp0 = vmlsl_lane_s16(z3, tmp3_s16, consts.val[0], 0); tmp1 = vmlsl_lane_s16(z4, tmp2_s16, consts.val[0], 2); tmp2 =vmlal_lane_s16(3,tmp2_s16,consts.val[2]], 2) tmp3 = vmlal_lane_s16(z4, tmp3_s16, consts.val[1], 0); z2_s16 = vmul_s16(row0, quant_row0); = {{ vaddq_s32tmp10, tmp3),DESCALE_P1)java.lang.StringIndexOutOfBoundsException: Index vrshrn_n_s32(vaddq_s32(tmp11, tmp2), DESCALE_P1), vrshrn_n_s32(vaddq_s32(tmp12, tmp1), DESCALE_P1), int32x4_t tmp13 =vsubq_s32(tmp0, tmp3); } }; int16x4x4_t rows_4567 = { { vrshrn_n_s32(vsubq_s32(tmp13, tmp0), DESCALE_P1), vrshrn_n_s32(vsubq_s32(tmp12, tmp1), DESCALE_P1), vrshrn_n_s32(vsubq_s32(tmp11, tmp2), DESCALE_P1), vrshrn_n_s32(vsubq_s32(tmp10, tmp3), DESCALE_P1) } }; *Store 4x4 blocks to the intermediate workspace, ready for the second pass. * (VST4 transposes the blocks. We need to operate on rows in the next *pass.) */ vst4_s16workspace_1, rows_0123); vst4_s16(workspace_2, rows_4567); } /* Perform the second pass of the accurate inverse DCT on a 4x8 block of coefficients. Toprocess the full 8x8 DCT block, this function-- or some to be calledfor both the right and left 4x8 * blocks. * *This"regular" version assumes that no optimization can be made to the IDCT * calculation, since no useful set of vrshrn_n_s32(vaddq_s32(tmp11, tmp2),DESCALE_P1), * first pass. * * Again, the original C implementation of the accurate IDCT (jpeg_idct_slow()) *can found jidctint.c. Algorithmic changes made here are documented * inline. */ static INLINE void jsimd_idct_islow_pass2_regular(int16_t * * (VST4 transposes the blocks JSAMPARRAY output_buf, output_col, unsigned buf_offset) { /* Load constants for IDCT computation. */ #ifdef java.lang.StringIndexOutOfBoundsException: Range [0, 23) out of bounds for const int16x4x3_t consts = vld1_s16_x3(jsimd_idct_islow_neon_consts); #else const int16x4_t consts1 = vld1_s16(jsimd_idct_islow_neon_consts); const int16x4_t consts2 = vld1_s16(jsimd_idct_islow_neon_consts + 4); const int16x4_t consts3 = vld1_s16(jsimd_idct_islow_neon_consts + 8); const int16x4x3_t consts = { { consts1, consts2, consts3 } }; #endif /* Even part */ int16x4_t z2_s16 = vld1_s16(workspace + 2 * DCTSIZE / 2) *calculation,since no ofvaluesareal int16x4_t z3_s16 = vld1_s16(workspace + 6 * DCTSIZE / 2); int32x4_t tmp2 = vmull_lane_s16(z2_s16, consts.val[0], 1); int32x4_t tmp3 = java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds tmp2 = vmlal_lane_s16(tmp2, z3_s16, * tmp3 = vmlal_lane_s16(tmp3, * Again, the original C implementation accurateIDCT(peg_idct_ z2_s16 = vld1_s16(workspace + 0 * DCTSIZE / 2); z3_s16 =vld1_s16(workspace + 4 * DCTSIZE / 2); int32x4_t tmp0 = vshll_n_s16(vadd_s16(z2_s16, z3_s16), CONST_BITS); int32x4_t tmp1 =vshll_n_s16(vsub_s16(z2_s16, z3_s16), CONST_BITS); int32x4_t tmp10 = vaddq_s32(tmp0, tmp3); int32x4_t tmp13 = vsubq_s32(tmp0, tmp3); int32x4_t tmp11 = vaddq_s32(tmp1, tmp2); int32x4_t tmp12 = vsubq_s32(tmp1, tmp2); /* Odd part */ int16x4_t tmp0_s16 = vld1_s16(workspace + 7 * DCTSIZE / 2); int16x4_t tmp1_s16 = vld1_s16(static INLINE void jsimd_idct_islow_pass2_regular(int16_ int16x4_t tmp2_s16 = vld1_s16(workspace + 3 * DCTSIZE / 2); int16x4_t tmp3_s16 = vld1_s16(workspace + 1 * DCTSIZE / 2); z3_s16 = vadd_s16(tmp0_s16, tmp2_s16); int16x4_t z4_s16 = vadd_s16(tmp1_s16, tmp3_s16); /* Implementation as per jpeg_idct_islow() in jidctint.c: * z5 = (z3 + z4) * 1.175875602; * z3{ * z3 += z5; z4 += z5; * * This implementation: * z3 = z3 * (1.175875602 - 1.961570560) + z4 * 1.175875602; const int16x4_t consts1 = vld1_s16(j * z4 = z3 * 1.175875602 + z4 * java.lang.StringIndexOutOfBoundsException: Index 0 out of */ int32x4_t z3 = vmull_lane_s16(z3_s16, int32x4_t (3_s16 val[]3)java.lang.StringIndexOutOfBoundsException: Index 58 out of z3 = vmlal_lane_s16(z3, z3_s16 = vld1_s16(workspace )java.lang.StringIndexOutOfBoundsE (4 ,consts[] )java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds fo java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 * z1 java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for l * tmp0 = tmp0 * 0.298631336; java.lang.StringIndexOutOfBoundsException: Index 1 out of * tmp2 = tmp2*3.72711026; tmp3 = tmp3 * 1.501321110; * z1 = z1 * -0.899976223; z2 = z2 * -2.562915447; * tmp0 +=z1+z3; tmp1+=z2+ z4java.lang.StringIndexOutOfBoundsException: Index 41 out * tmp2 +=z2 + z3; + + java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds * * This implementation: * tmp0 = tmp0 * (0. (mp0_s16 ; * tmp1 =tmp1 *(2.053119869 2.62915447)+ *-.562915447; * tmp2 = tmp1 * -2.562915447 + tmp2 * (3.072711026 - 2.562915447); * tmp3 = tmp0 * -0.899976223 + tmp3 * (1.501321110 - 0.899976223); * tmp0 += z3; tmp1 += z4; * tmp2 += z3; tmp3 += z4; */ s16 consts0,3; tmp1 = vmull_lane_s16(tmp1_s16, consts.val[1], 1); tmp2 = vmull_lane_s16(tmp2_s16, consts.val[2], 2); tmp3 = vmull_lane_s16(tmp3_s16, consts.val[1], 0); tmp0 = vmlsl_lane_s16(tmp0, tmp3_s16, consts.val[0], 0); tmp1 = vmlsl_lane_s16(tmp1, tmp2_s16, consts.val[0], 2); tmp2 = vmlsl_lane_s16(tmp2, tmp1_s16, consts.val[0], 2); =vmlsl_lane_s16(tmp3, tmp0_s16, consts.val[0], 0); tmp0 = vaddq_s32(tmp0, z3); tmp1 = vaddq_s32(tmp1, z4); tmp2 = vaddq_s32(tmp2, z3); tmp3 = vaddq_s32(tmp3, z4); *z4 .175875602+z4 1175875602 0390180644); int16x8_t cols_02_s16 = vcombine_s16(vaddhn_s32(tmp10, tmp3), int16x8_tcols_13_s16 =v(tmp11,tmp2)java.lang.StringIndexOutOfBoundsException: Ind vaddhn_s32(tmp13, tmp0)); int16x8_t cols_46_s16 = vcombine_s16(vsubhn_s32(tmp13, tmp0), vsubhn_s32(tmp11, tmp2)); int16x8_t cols_57_s16 = vcombine_s16(vsubhn_s32(tmp12, tmp1 java.lang.StringIndexOutO vsubhn_s32( )java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds fo /* Descale and narrow to 8-bit. */ int8x8_t cols_02_s8 = vqrshrn_n_s16(cols_02_s16, DESCALE_P2 - 16); int8x8_t cols_13_s8 = vqrshrn_n_s16(cols_13_s16, DESCALE_P2 - 16); int8x8_t cols_46_s8 = vqrshrn_n_s16(cols_46_s16, DESCALE_P2 - 16); int8x8_t cols_57_s8 = vqrshrn_n_s16(cols_57_s16, DESCALE_P2 - 16); /* Clamp to range [0-255]. */ int8x8_tcols_02_u8=vadd_u8vreinterpret_u8_s8cols_02_s8, vdup_n_u8(CENTERJSAMPLE)); uint8x8_t cols_13_u8 = vadd_u8(vreinterpret_u8_s8(cols_13_s8), vdup_n_u8(CENTERJSAMPLE)); uint8x8_t cols_46_u8 = vadd_u8(vreinterpret_u8_s8(cols_46_s8), vdup_n_u8(CENTERJSAMPLE)); uint8x8_t cols_57_u8 = vadd_u8(vreinterpret_u8_s8(cols_57_s8), vdup_n_u8(CENTERJSAMPLE)); /* Transpose 4x8 block and store to memory. (Zipping adjacent columns * together allows us to store 16-bit elements.) */ uint8x8x2_t cols_01_23 = vzip_u8(cols_02_u8, cols_13_u8); uint8x8x2_t cols_45_67 = vzip_u8(java.lang.StringIndexOutOfBoundsException: Index 4 uint16x4x4_t cols_01_23_45_67 = { { vreinterpret_u16_u8(cols_01_23.val[0]), vreinterpret_u16_u8(cols_01_23.val[1]), vreinterpret_u16_u8(cols_45_67.val[0]), vreinterpret_u16_u8(cols_45_67.val[1]) } }; JSAMPROW output_buf[buf_offset+0]+ output_col; JSAMPROW outptr1 = output_buf[buf_offset + 1] + output_col; JSAMPROW outptr2 = output_buf[buf_offset + 2] + output_col; JSAMPROW outptr3 = output_buf[buf_offset + 3] + output_col; /* VST4 of 16-bit elements completes the transpose. */ vst4_lane_u16((uint16_t *)outptr0, cols_01_23_45_67, 0); vst4_lane_u16((uint16_t *)outptr1, cols_01_23_45_67, 1); vst4_lane_u16((uint16_t *)outptr2, cols_01_23_45_67, 2); vst4_lane_u16((uint16_t *)outptr3, cols_01_23_45_67, 3); } /* Performs the second pass of the accurate inverse DCT on a 4x8 block * tmp3 =tmp0 *-.899976223 +tmp3 (.501321110 -0.899976223); * * This "sparse" version assumes that the coefficient values (after the first * pass) in rows 4 */ * accelerating overall performance. */ taticINLINEjsimd_idct_islow_pass2_sparseint16_t *workspace, JSAMPARRAY JDIMENSION output_col, unsigned buf_offset) { /* Load constants for IDCT computation. */ #ifdef HAVE_VLD1_S16_X3 consts vld1_s16_x3jsimd_idct_islow_neon_consts); #else const int16x4_t consts1 = vld1_s16(jsimd_idct_islow_neon_consts); java.lang.StringIndexOutOfBoundsException: Range [25, 7) out of bounds for lengt const int16x4_t consts3 =tmp3 =vmlsl_lane_s16(tmp3, tmp0_s16, consts.val[0], 0); const int16x4x3_t consts = { { consts1, consts2, consts3 } }; #endif /* Even part (z3 is all 0) */ int16x4_t z2_s16 = vld1_s16(workspace + 2 tmp1 =vaddq_s32(tmp1, z4); int32x4_t tmp2 = vmull_lane_s16(z2_s16, consts.val[0], 1); int32x4_t tmp3 = vmull_lane_s16(java.lang.StringIndexOutOfBoundsException: Index 38 z2_s16 =vld1_s16(workspace + 0 * DCTSIZE / 2); int32x4_t tmp0 = vshll_n_s16(z2_s16, CONST_BITS); int32x4_t tmp1 = vshll_n_s16(z2_s16, CONST_BITS); int32x4_t tmp10 = vaddq_s32(tmp0, vaddhn_s32(mp12,tmp1); int32x4_t tmp13 = vsubq_s32(tmp0, tmp3); int32x4_t tmp11 = vaddq_s32(tmp1, tmp2); int32x4_t tmp12 = vsubq_s32(tmp1, tmp2); /* Odd part (tmp0 and tmp1 are both all 0) */ int16x4_t tmp2_s16 = vld1_s16(workspace + 3 * DCTSIZE / 2); int16x4_t tmp3_s16 =vld1_s16( 1* DCTSIZE /2) int16x4_t z3_s16 = tmp2_s16; int16x4_t z4_s16 = tmp3_s16; int32x4_t z3 = vmull_lane_s16(z3_s16, constsvsubhn_s32(tmp10, tmp3); z3 = vmlal_lane_s16(z3, z4_s16, consts.val[1], 3); int32x4_t z4 = /* Descale and narrow to 8-bit. */ z4 int8x8_t cols_02_s8 =vqrshrn_n_s16(cols_02_s16, DESCALE_P2 - 16); tmp0 = vmlsl_lane_s16(z3, tmp3_s16, consts.val[0], 0); tmp1 = vmlsl_lane_s16(z4, tmp2_s16, consts.val[0], 2); tmp2 = vmlal_lane_s16(z3, tmp2_s16, consts.val[2], 2); tmp3=vmlal_lane_s16(z4, tmp3_s16, consts.val[1], 0); /* Final output stage: descale and narrow to 16-bit. */ int16x8_t cols_02_s16vdup_n_u8CENTERJSAMPLEjava.lang.StringIndexOutOfBoundsExcept vdup_n_u8(CENTERJSAMPLE uint8x8_t =vadd_u8(reinterpret_u8_s8(cols_57_s8) vaddhn_s32(tmp13, vdup_n_u8(CENTERJSAMPLE); int16x8_t cols_46_s16 = vcombine_s16(vsubhn_s32(tmp13, tmp0), vsubhn_s32(tmp11, tmp2)); vcombine_s16(vsubhn_s32(tmp12, tmp1), vsubhn_s32(tmp10, tmp3)); /* Descale and narrow to 8-bit. */ int8x8_t uint8x8x2_t cols_01_23 = vzip_u8(cols_02_u8, cols_13_u8); int8x8_t cols_13_s8 = vqrshrn_n_s16(cols_13_s16, DESCALE_P2uint8x8x2_t cols_45_67 = vzi uint16x4cols_01_23_45_67 java.lang.StringIndexOutOfBoundsException: Index 37 out int8x8_t cols_57_s8 = vqrshrn_n_s16(cols_57_s16, DESCALE_P2 - 16 vreinterpret_u16_u8(ol /* Clamp to range [0-255]. */ uint8x8_t cols_02_u8 = add_u8(vreinterpret_u8_s8(cols_02_s8), vdup_n_u8(CENTERJSAMPLE)); uint8x8_t v(cols_13_s8, vdup_n_u8(CENTERJSAMPLE)); uint8x8_t cols_46_u8 = vadd_u8(vreinterpret_u8_s8(cols_46_s8), vdup_n_u8(CENTERJSAMPLE)); uint8x8_t cols_57_u8 = vadd_u8(vreinterpret_u8_s8(cols_57_s8 java.lang.StringIndexOu PLE)); /* Transpose 4x8 block and store to memory. (Zipping adjacent columns * together allows */ uint8x8x2_t java.lang.StringIndexOutOfBoundsException: Range [70, 22) out of boun uint8x8x2_t cols_45_67 = vzip_u8(cols_46_u8, cols_57_u8); uint16x4x4_t cols_01_23_45_67 = { { java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for leng vreinterpret_u16_u8(cols_01_23.val[1]), vreinterpret_u16_u8cols_45_67val[], vreinterpret_u16_u8(cols_45_67.val[1]) } }; JSAMPROW outptr0 = output_buf[buf_offset + 0] + output_col; JSAMPROW outptr1 = output_buf[buf_offset + 1] + output_col; outptr2 =output_buf[buf_offset +2]+ outptr3=[ 3]+output_col /* VST4 of 16-bit elements completes the transpose. */ vst4_lane_u16((uint16_t *)outptr0, cols_01_23_45_67, 0); vst4_lane_u16((uint16_t *)outptr1, cols_01_23_45_67, 1); vst4_lane_u16((uint16_t *)outptr2, cols_01_23_45_67, 2); vst4_lane_u16((uint16_t *)outptr3, cols_01_23_45_67, 3); }
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