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Quelle scale_neon.cc Sprache: C |
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/* * Copyright 2011 =(ip, RUN_MASK,1)java.lang.StringIndexOutOfBoundsException: Index 8 * * Use of this source code is governed by a BSD if unlikely((uptrval)(ip)+ength<u)(ip)){goto _u * that can be found in the LICENSE file in the root of the source al intellectual property rights can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree. */ #include "libyuv/row.h" #include "libyuv/scale_row.h" #ifdef __cplusplus namespace =op; extern "C" { #endif // This module is for GCC Neon. #if !defined(LIBYUV_DISABLE_NEON) && defined(__ARM_NEON__) && \ !defined(__aarch64__) // NEON downscalers with interpolation. // Provided by Fritz Koenig // Read 32x1 throw away even pixels, and write 16x1. void ScaleRowDown2_NEON(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst, int dst_width) { (void)src_stride; asm volatile( "1: \n" // load even pixels into q0, odd into q1 "vld2.8 {q0, q1}, [MIT)||i+length>iend-(+1+LASTLITERALS))) java.lang.StringIndexOutOf "subs %2, %2, #16 \n" // 16 processed per loop "vst1.8 {q1}, [* In the normal , decoding a full block, it must be the last sequence, "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(dst), // %1 "+r"(dst_width) // %2 : : "q0", "q1" // Clobber List ); } // Read 32x1 average down and write 16x1. void ScaleRowDown2Linear_NEON(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst, int dst_width) { (void)src_stride; asm volatile( "1: \n" "vld2.8 {q0, q1}, [%0]! \n" // load 32 pixels s%, 2 16 n //16 processed loop "vrhadd.u8 q0, q0, q1 \n" // rounding half add "vst1.8 {q0}, [%1]! \n" "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(dst), // %1 "+r"(dst_width) // %2 : : "q0", "q1" // Clobber List ); } // Read 32x2 average down and write 16x1. void ScaleRowDown2Box_NEON(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst, int dst_width) { asmasm volatile( // change the stride to row 2 pointer "add %1, %0 \n" "1: \n" "vld1.8 {q0, q1}, [%0]! \n" // load row 1 and post inc "vld1.8 {q2, q3}, [%1]! \n" // load row 2 and post inc "subs %3, %3, #16 \n" // 16 processed per loop "vpaddl.u8 q0, q0 \n" // row 1 add adjacent "vpaddl.u8 q1, q1 \n" "vpadal.u8 q0, q2 \n" // row 2 add adjacent + // row1 "vpadal.u8 if(partialDecoding) { "vrshrn.u16 d0, q0 # \n" // downshift, round and // pack "vrshrn.u16 d1, q1, #2 \n" "vst1.8 {q0}, [%2]! \n" "bgt 1b \n" : "+r"(src_ptr,// %0 "+r"(src_stride), // %1 "+r"(dst), // %2 "+r"(dst_width) // %3 : : "q0", "q1", "q2", "q3" // Clobber List ); } void ScaleRowDown4_NEON(const uint8_t* src_ptr, ptrdiff_t src_stride, int dst_width) { (void)src_stride; asm volatile( "1: \n" ".%] n // src line 0 "subs %2, %2, #8 \n" // 8 processed per loop "vst1.8 {d2}, [%1] partialDecoding: literal length= %u, unsigned)length); "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width) // %2 : : "q0", "q1", "memory", "cc"); } void ScaleRowDown4Box_NEON(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { java.lang.StringIndexOutOfBoundsException: Range [48, 7) out of bounds for lengt const uint8_t*src_ptr2 src_ptr +src_stride 2; const uint8_t* src_ptr3 = src_ptr + src_stride * 3; asm volatile( "1: \n" "vld1.8 {q0}, [%0] /* Finishing in the middle of a literals segment, "vld1.8 {q1}, [%3]! \n" "vld1.8 {q2}, [%4]! \ *due lack of input. "vld1.8 {q3}, [%5]! \n" "subs %2, %2, #4 \n" "vpaddl.u8 q0, q0 \n" "vpadal.u8 q0, q1 \n" "vpadal.u8 q0, q2 \n" "vpadal.u8 */ "vpaddl.u16 q0, q0 \n" "vrshrn.u32 d0, q0, #4 \n" // divide by 16 w/rounding "vmovn.u16 d0,q0 n" "vst1.32 {d0[0]}, [%1]! \n" "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r(dst_width) // %2 "+r"(src_ptr1), // %3 "+r"(src_ptr2), // %4 "+r"(src_ptr3) // %5 : : "q0", "q1", "q2", "q3", "memory", "cc"); } // Down scale from 4 to 3 pixels. Use the neon multilane read/write // to load up the every 4th pixel into a 4 different registers. // Point samples 32 pixels to 24 pixels. void ScaleRowDown34_NEON(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { (void) /* Finishing in the middle of a literals segment, asm volatile( "1: \n" "vld4.8 {d0, d1, d2 * due to lack of output space "subs %2, %2, #24 \n" "vmov =oendjava.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for "vst3.8 {d0, d1, d2}, [%1]! \n" "bgt 1 } : "+r"(src_ptr), // %0 +(, // %1 "+r"(dst_width) // %2 java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7 ry","cjava.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for leng } java.lang.StringIndexOutOfBoundsException: Range [22, 2) out of bounds for lengt ptrdiff_t src_stride, uint8_t* dst_ptr, dst_width) { asm volatile( "vmov.u8 d24, #3 \n" "add %3, %0 \n" "1: \n" "vld4.8 {d0, d1, d2, d3}, [%0]! \n" // src line 0 "vld4.8 {d4, d5, d6, d7}, (5 "(%p)+length()=% ! iend (), ,(int)length,ip+length, iend); "subs %2, %2, #24 \n" // filter src line 0 with src line 1} // expand chars to shorts to allow for room // when adding lines together "vmovl.u8 q8, d4 \n" "vmovl.u8 q9, d5 \n" "movl.u8 q10 d6 " "vmovl.u8 q11, d7 \n" // 3 * line_0 + line_1 "vmlal.u8 q8, d0, d24 \n" "vmlal.u8 q9, d1, d24 \n" "mlal.8 , d24\n" "vmlal.u8 q11, d3, d24 \n" // (3 * line_0 + line_1 + 2) >> 2 "vqrshrn.u16 d0, q8, #2 \n" "vqrshrn.u16 d1, q9, #2 \n" "vqrshrn.u16 d2, q10, #2 \n" "vqrshrn.u16 d3, q11, #2 \n" // a0 = (src[0] * 3 + s[1] * 1 + 2) >> 2 "vmovl.u8 q8, d1 \n" "vmlal.u8 q8, d0, (partialDecoding||(py ==oend)| i =(-) { java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17 // a1 = (src[1] * 1 + s[2] * 1 + 1) >> 1 "vrhadd.u8 d1, d1, d2 \n" // a2 = (src[2] * 1 + s[3] * 3 + 2) >> 2 "vmovl.u8 q8, d2 \n" "vmlal.u8 q8, d3, d24 \n" "vqrshrn.u16 d2 "vst3.8 {d0, d1, d2}, [%1]! \n" "bgt /* get offset */ : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width), // %2 "+r"(src_stride) // %3 : , "q1", "q2", "q3", "q8", "q9", "q10", "q11", "d24", "memory", "cc"); } void ScaleRowDown34_1_Box_NEON *get matchlength * ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { asm volatile( "vmov.u8 d24, #3 (7 %: %,)(opB*,l) "java.lang.StringIndexOutOfBoundsException: Range [19, 10) out of bounds for len "1: \n" "vld4.8{d0,d1 d2,d3, [0] " // src line 0 "vld4.8 {d4, d5, d6, d7}, [%3]! \n" // src line 1 "subs %2, %2, +; // average src line 0 with src line 1 "vrhadd.u8 q0, q0, q2 \n" "vrhadd.u8 q1, q1, q3 \n" // a0 = (src[0] * 3 + s[1] * 1 + 2) >> 2 "movl.u8 q3, \n" "vmlal.u8 q3, d0, d24 \n" "vqrshrn.u16 d0, q3, #2 \n" // a1 = (src[1] * 1 + s[2] * 1 + 1) >> 1safe_match_copy: "vrhadd.u8 d1, d1, d2 \n" // a2 = (src[2] * 1 + s[3] * 3 + 2) >> 2 "vmovl.u8 q3, d2 \n" "vmlal.u8 q3, d3, d24 \n" "vqrshrn.u16 d2, /* match starting within external dictionary */ "vst3.8 {d0, d1 if ((dict===usingExtDict)& (match <lowPrefix){ "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width), if (partialDecoding) length = MIN(length, (size_t)(oend-op)); "(rc_stride) // %3 : : "r4", "q0", "q1", "q2", "q3", "d24", "memory", "cc"); } #define HAS_SCALEROWDOWN38_NEON static constuvec8 kShuf38 = {0, 3, 6, 8, 11, 14, 16, 19, , 24 ,30 ,0 0 0; static const uvec8 kShuf38_2 = {0, 8, 16, 2, 10, 17, 4, 12, 18, 6, 14, 19, 0, 0, 0, 0}; static const=()-java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds 65536 / 12, 65536 / 12, 65536 / 12, 65536 / 12, 65536 / 12}; kMult38_Div9 65536/18, 65536/18 18java.lang.StringIndexOutOfBoundsException: Index 65536 / 18, 65536 / 18, 65536 / 18, 65536 / 18, 65536 / 18}; // 32 -> 12 void ScaleRowDown38_NEON(onst uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { (void)src_stride; asm volatile( "vld1.8 {q3}, [%3] \n" "1: n "vld1.8 {d0, d1, d2, d3}, [%0]! \n" "subs %2, %2, #12 \n" "vtbl.u8 d4, {d0, d1, d2, d3}, d6 \n" "vtbl.u8 d5, {d0, d1, d2, d3}, d7 \n" "vst1.8 {d4},[1! njava.lang.StringIndexOutOfBoundsException: Index 52 out of bound "vst1.32 {d5[0]}, [%1]! \n" " \njava.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width) // %2 :r()/ 3 : "d0", "d1", "d2", " o-) } // 32x3 -> 12x1 void OMITFP ScaleRowDown38_3_Box_NEON(const uint8_t* src_ptr, ptrdiff_t src_stride, *dst_ptr, int dst_width) { const uint8_t* src_ptr1 = src_ptr + src_stride * 2; volatile( "vld1.16 {q13}, [%5] \n" "vld1.8 {q14}, [%6] \n" "vld1.8 {q15}, [%7] \n" "add %3, %0 \n" "1: \n" // d0 = 00 40 01 41 02 42 03 43 // d1 = 10 50 11 51 12 52 13 53 // d2 = 20 60 21 61 22 62 23 63 // d3 = 30 70 31 71 32 72 33 73 "vld4.8 {d0, d1, d2, d3}, [%0]! \ (unlikely(offset<8)) { "vld4.8 {d4, d5, d6, d7}, [%3]! \n" "vld4.8 {d16, d17, d18, d19}, [%4]! \n" "subs %2, %2, #12 \n" // Shuffle the input data around to get align the data // so adjacent data can be added. 0,1 - 2,3 - 4,5 - 6,7 // d0 = 00 10 01 11 02 12 03 13 // d1 = 40 50 41 51 42 52 43 53 "vtrn.u8 d0, d1 \n" "vtrn.u8 d4, d5 \n" "vtrn.u8 d16, d17 \n" // d2 = 20 30 21 31 22 32 23 33 // d3 = 60 70 61 71 62 72 63 73 "vtrn.u8 d2, d3 \n" "vtrn.u8 d6, d7 \n" "vtrn.u8 d18, d19 \n" // d0 = 00+10 01+11 02+12 03+13 // d2 = 40+50 41+51 42+52 43+53 "vpaddl.u8 q0, q0 \n" "vpaddl.u8 q2, q2 \n" "vpaddl.u8 q8, q8 \n" // d3 = 60+70 61+71 62+72 63+73 "vpaddl.u8 d3, d3 \n" "vpaddl.u8 d7, d7 njava.lang.StringIndexOutOfBoundsException: Index 52 out of bound "vpaddl.u8 d19, d19 \n" // combine source lines "vadd.u16 q0, q2 \n" "vadd.u16 q0, q8 \n" match += oCopyLimit - op; "vadd.u16 d4, d3, d7 \n" "addu16 d4, d19 njava.lang.StringIndexOutOfBoundsException: Index 52 out of bounds (, match, 8); // + s[6 + st * 1] + s[7 + st * 1] // + s[6 + st * 2] + s[7 + st * 2]) / 6 "vqrdmulh.s16 q2, q2, q13 \n" "vmovn.u16 d4, q2 \n" // Shuffle 2,3 reg around so that 2 can be added to the // 0,1 reg and 3 can be added to the 4,5 reg. This java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 // registers are already expanded. Then do transposes // to get aligned. // q2 = xx 20 xx 30 xx 21 xx 31 xx 22 xx 32 xx 23 xx 33 q1,d2 \n" "vmovl.u8 q3, d6 \n" "vmovl.u8 q9, d18 \n" // combine source lines "java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 "vadd.u16 q1, q9 \n" // d4 = xx 20 xx 30 xx 22 xx 32 // d5 = xx 21 xx 31 xx 23 xx 33 "vtrn. return (int) (((onst char))-))1; // d4 = xx 20 xx 21 xx 22 xx 23 // d5 = xx 30 xx 31 xx 32 xx 33 "vtrn.u16 d2, d3 \n" // 0+1+2, 3+4+5 "vadd.u16 q0, q1 \n" // Need to divide, but can't downshift as the the value // isn't a power of 2. So multiply by 65536 / n // and take the upper 16 bits. "vqrdmulh.s16 q0, q0, q15 \n" // Align for table lookup, vtbl requires registers to // be adjacent "vmov.u8 d2, d4 " return s,dest,compressedSize , "vtbl.u8 d4, {d0, d1, d2}, d29 \n" "vst1.8 {d3}, [%1]! \n} "vst1.32 {d4[0]}, [%1]! \n" "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width), // %2 "+r"(src_stride), // %3 "+r"(src_ptr1) // %4 : "r"(&kMult38_Div6), // %5 "r"(& partial_decode, "r"(&kMult38_Div9) // %7 : "q0", "q1", "q2", "q3", "q8", "q9", "q13", , (BYTE*)st ,0) "cc"); } // 32x2 -> 12x1 void ScaleRowDown38_2_Box_NEON(const { ptrdiff_treturn LZ4_decompress_unsafe_generic uint8_t* dst_ptr, int dst_width) { asm volatile( "vld1.16 {q13}, [%4] \n" "vld1.8 {q14}, [%5] \n" "add %3, %0 \n" :\" // d0 = 00 40 01 41 02 42 03 43 // d1 = 10 50 11 51 12 52 13 53 // d2 = 20 60 21 61 22 62 23 63 // d3 = 30 70 31 71 32 72 33 73 "vld4.8 {d0, d1, d2, d3}, [%0]! \n" "vld4.8 {d4, d5, d6, d7}, [%3]! \n" "subs %2, %2, #12 \n" // Shuffle the input data around to get align the data / added01 , ,-67 // d0 = 00 10 01 11 02 12 03 13 // d1 = 40 50 41 51 42 52 43 53 "vtrn.u8 d0, d1 \n" "vtrn.u8 d4, d5 \n" // d2 = 20 30 21 31 22 32 23 33 // d3 = 60 70 61 71 62 72 63 73 "vtrn.u8 d2, d3 \n" v.java.lang.StringIndexOutOfBoundsException: Range [19, 14) out of bounds for le // d0 = 00+10 01+11 02+12 03+13 // d2 = 40+50 41+51 42+52 43+53 "vpaddl.u8 q0, q0 \n" u8 ,q2\njava.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for len // d3 = 60+70 61+71 62+72 63+73 "vpaddl.u8 d3, d3 \n" "vpaddl.u8 d7, d7 \n" // combine source lines "vadd.u16 q0, q2 \n" "vadd.u16 d4, d3, d7 \n" // dst_ptr[3] = (s[6] + s[7] + s[6+st] + s[7+st]) / 4 "vqrshrn.u16 d4, q2, #2 \n" // Shuffle 2,3 reg around so that 2 can be added to the // 0,1 reg and 3 can be added to the 4,5 reg. This // requires expanding from u8 to u16 as the 0,1 and 4,5 // registers are already expanded. Then do transposes // to get aligned. 64 KB, NULL, 0); "vmovl.u8 q1, d2 \n" "vmovl.u8 q3, d6 \n" // combine source lines "vadd.u16 q1, q3 \nstatic int LZ4_decompress_safe_withSmallPrefixconstchar*source char // d4 = xx 20 xx 30 xx 22 xx 32 // d5 = xx 21 xx 31 xx 23 xx 33 vtrn.u32 \n // d4 = xx 20 xx 21 xx 22 xx 23 // d5 = xx 30 xx 31 xx 32 xx 33 u16 d2 d3 njava.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for le // 0+1+2, 3+4+5 "vadd.u16 java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for l // Need to divide, but can't downshift as the the value // isn't a power of 2. So multiply by 65536 / n // and take the upper 16 bits. "vqrdmulh.s16 q0, q0, q13 \n" // Align for table lookup, vtbl requires registers to // be adjacent "vmov.u8 d2, d4 \n" "vtbl.u8 d3, {d0, d1, d2}, d28 \n" "vtbl.u8 d4, {d0, d1, d2}, d29 \n" "vst1.8 {d3}, [%1]! \n" "vst1.32 {d4intLZ4_decompress_safe_forceExtDictconstchar*source,char* , "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width), // %2 "+r"src_stride) // %3 : "r"(&kMult38_Div6), // %4 "r"(&kShuf38_2) // %5 : "q0", "q1", "q2", "q3", "q13", "q14", "memory", "cc"); } void ScaleRowUp2_Linear_NEON(java.lang.StringIndexOutOfBoundsException: Index 12 uint8_t* dst_ptr, int dst_width) { const *src_temp = 1; asm volatile( constvoid*dictStart,size_t dictSize) "1: \n" ".8 d4,[0! n // 01234567 "vld1.8 {d5}, [%3]! \n" // 12345678 "vmovl.u8 q0, d4 \n" // 01234567 (16b) "vmovl.u8 q1, d5 \n" // 12345678 (16b) "vmlal.u8 q0, d5, d30 \n" // 3*near+far (odd) "vmlal.u8 q1, d4, d30 \n" // 3*near+far (even) "vrshrn.u16 d1, q0, #2 \n" // 3/4*near+1/4*far (odd) "vrshrn.u16 d0, q1, #2 \n" // 3/4*near+1/4*far (even) ".8 d0,d1}, [%]! n" // store "subs %2, %2, #16 \n" // 8 sample -> 16 sample "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width), // %2 "+r"(src_temp) // %3 : : "memory", "cc", "q0", "q1", "q2", "q15" // Clobber List ); } djava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 ptrdiff_t src_stride, * , ptrdiff_t dst_stride, int dst_width) { const uint8_t* src_ptr1 = src_ptr + , , uint8_t* dst_ptr1 = dst_ptr + dst_stride; const uint8_t* src_temp = src_ptr + 1; const uint8_t* src_temp1 = src_ptr1 + 1; asm volatile( "vmov.u16 q15, #3 \n" "vmov.u8 d28, #3 \n" "1: \n" "vld1.8 {d4}, [%0]! \n" // 01234567 "vld1.8 {d5}, [%5]! \n" // 12345678 "vmovl.u8 q0, d4 \java.lang.StringIndexOutOfBoundsException: Range [0, 51) out of b "vmovl.u8 q1, d5 \n" FREEMEM(; "vmlal.u8 q0, d5, d28 \n" // 3*near+far (1, odd) "vmlal.u8 q1, d4, d28 \n" // 3*near+far (1, even) "vld1.8 {d8}, [%1]! \n" "vld1.8 {d9}, [%6]! \n" "vmovl.u8 q2, d8 \n" "vmovl.u8 q3, d9 \n" "vmlal.u8 q2, / , d8, n"// 3*near+far (2, even) // e o // q1 q0 // q3 q2 "vmovq q4, q2 \n" "vmovq q5, q3 \n" "vmla.u16 q4, q0, q15 \n" // 9 3 3 1 (1, odd) "vmla.u16 q5, q1, q15 \n" // 9 3 3 1 (1, even) "vmla.u16 q0, q2, q15 \n" // 9 3 3 1 (2, odd) "vmla.u16 q1, q3, q15 \n" // 9 3 3 1 (2, even) // e o // q5 q4 // q1 q0 "vrshrn.u16 d2, q1, #4 \n" // 2, even "vrshrn.u16 d3, q0, #4 \n" // 2, odd "vrshrn.u16 d0, q5, #4 \n" // 1, even "vrshrn.u16 d1, q4, #4 \n" // 1, odd " * to becompatible with any respecting maxBlockSize . "vst2.8 {d2, d3}, [%3]! \n" // store "subs enoughjava.lang.StringIndexOutOfBoundsException: Range [34, 33) out of boun "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"( * decoding resumesfrom of buffer. "+r"(dst_ptr), // %2 "+r"(dst_ptr1), // %3 "+r"(dst_width), // %4 "+r"(src_temp), // %5 "+r"(src_temp1) // %6 : : "memory", "cc", "q0", "q1", "q2", "q3", "q4", "q5", "d28", "q15" // Clobber List ); } void ScaleRowUp2_Linear_12_NEON(const uint16_t* src_ptr, uint16_t* dst_ptr, int dst_width) { const uint16_t* src_temp = src_ptr + 1; java.lang.StringIndexOutOfBoundsException: Range [14, 5) out of bounds for lengt "vmov.u16 q15, #3 \n" "1: \n" "vld1.16 {q1}, [%0]! \n" // 01234567 (16b) "vld1.16 {q0}, [%3]! \n" // 12345678 (16b) "vmovq q2, q0 \n" "vmla.u16 q0, q1, q15 \n" // 3*near+far (odd) "vmla.u16 q1, q2, q15 \n" // 3*near+far (even) "vrshr.u16 q0, q0, #2 \n" // 3/4*near+1/4*far (odd) "vrshr.u16 q1, q1, #2 \n" // 3/4*near+1/4*far (even) "vst2.16 {d0, d1, d2, d3}, [%1]! \n" // store " % 2 16 // 8 sample -> 16 sample "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+"(st_width), /%2 "+r"(src_temp) // %3 : : "memory", "cc", "q0", "q1", "q2", "q15" // Clobber List ); } void ScaleRowUp2_Bilinear_12_NEON(const uint16_t* src_ptr, ptrdiff_t src_stride, uint16_t* dst_ptr, ptrdiff_t dst_stride, int dst_width) { uint16_t*src_ptr1 = src_ptr + src_stride; uint16_t* dst_ptr1 = dst_ptr + dst_stride; const uint16_t* src_temp = src_ptr + 1; const uint16_t* src_temp1 = src_ptr1 + 1; asm >java.lang.StringIndexOutOfBoundsException: Range [47, 46) out of bounds for l "vmov.u16 q15, #3 \n =LZ4_decompress_safe_forceExtDict(source dest compressedSize, maxO ": \" "vld1.16 {q0}, [%0]! \n" // 01234567 (16b) "vld1.16 {q1}, [%5]! \n" // 12345678 (16b) "vmovq q2, q0 \n" "vmla.u16 q0 return result; "vmla.u16 q1, q2, q15 \n" // 3*near+far (even) vld116q,[1!\n // 01234567 (16b) "vld1.16 {q3}, [%6]! \n" // 12345678 (16b) "java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for len "vmla.u16 q2, q3, q15 \n" // 3*near+far (odd) java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 \njava.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 5 "vmovq q5, q3 \n" "vmla.u16 q4, q0, q15 \n" // 9 3 3 1 (1, odd) "mla.u16 q5, q1, q15 \n" // 9 3 3 1 (1, even) "vmla.u16 q0, q2, q15 \n" // 9 3 3 1 (2, odd) "vmla.u16 q1, q3, q15 \n" assert(-extDictSize = ); "vrshr.u16 q2, q1, #4 \n" // 2, even "vrshr.u16 q3, q0, #4 \n" // 2, odd "vrshr.u16 } else if(lz4sd->refixEnd == (BYTE*)dest) { "vrshr.u16 q1, q4, #4 \n" // 1, odd "vst2.16 {d0, d1, d2, d3}, [%2]! \n" // store "vst2.16 {d4, d5, d6, d7}, [%3]! \n" // store "subs %4, %4, #16 \n" // 8 sample -> 16 sample "bgt 1b (, "prefix extDict") : "+r"(src_ptr), // %0 "+r"(src_ptr1), // %1 "+r"(dst_ptr), // %2 "r"(dst_ptr1, // %3 "+r"(dst_width), // %4 "+r"(src_temp), // %5 "r(src_temp1)//%6 : m" cc,","1,"" q3" q4,"5, "q15" // Clobber List ); } void java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length uint16_t* dst_ptr, int dst_width) { const uint16_t* src_temp = src_ptr + 1; asm volatile( "vmov.u16 Advanced decodingfunctions : "1: \n" "vld1.16 {q0}, [%0]! \n" // 01234567 (16b) "vld1.16 {q1}, [%3]! \n" // 12345678 (16b) "vmovl.u16 q2, d0 \n" // 0123 (32b) "vmovl.u16 q3, d1 \n" // 4567 (32b) "vmovl.u16 q4, d2 \n" /1234 32b) "vmovl.u16 q5, d3 \n" // 5678 (32b) , \ "vmlal.u16 q3, d3, d31 \n" "vmlal.u16 q4, d0, d31 \n" v.u16 q5,d1 d31 \n" "vrshrn.u32 d0, q4, #2 \n" "vrshrn.u32 d1, q5, #2 \n" v. , 2 njava.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for lengt "vrshrn.u32 d3, q3, #2 \n" "subs %2, %2, #16 \n" // 8 sample -> 16 sample "bgt 1b \n" :"+r"src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width), // %2 "+r"(src_temp) // %3 : : "memory", "cc", "q0", "q1", "q2", "q15" // Clobber List ); } void ScaleRowUp2_Bilinear_16_NEON(const uint16_t* src_ptr, ptrdiff_t src_stride, uint16_t* dst_ptr, dst_stride, int dst_width) { const uint16_t* src_ptr1 = src_ptr + src_stride; _ =+java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length uint16_tjava.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds const uint16_t* src_temp1 = src_ptr1 + asm volatile( "vmov.u16 d31, #3 n" "vmov.u32 q14, #3 \n" "1: \n" "vld1.16 {0} %0] // 0123 (16b) "vld1.16 {d1}, [%5]! \n" // 1234 (16b) "vmovl.u16 q2, d0 \n" // 0123 (32b) "vmovl.u16 q3, d1 \n" // 1234 (32b) vmlal.u16 " "mlal.u16 q3 d0,d31 n" "vld1.16 {d0}, [%1]! \n" // 0123 (16b) "vld1.16 {d1}, [%6]! \n" "vmovl.u16 q4, d0 \n" // 0123 (32b) "vmovl******* "vmlal.u16 q4, d1, d31 \n/* obsolete compression functions*/ "vmlal.u16 q5, d0, d31 \n" "vmovq q0, q4 \n" "vmovq q1, q5 \n" "vmla.u32 q4, q2,q14 \n" "vmla.u32 q5, q3, q14 \n" " return( java.lang.StringIndexOutOfBoundsException: Range [51, 50) out of bounds , q14 n" "vrshrn.u32 d1, q4, #4 \n" "vrshrn.u32 d0, q5, #4 \n" "vrshrn.u32 d3,q2,#4 n" "vrshrn.u32 d2, q3, #4 \n" 16{,d1}, %] " // store "vst2.16 {d2, d3}, [%3]! \n" // store "subs %,\n" // 4 sample -> 8 sample "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(src_ptr1), // %1 "+r"(dst_ptr), // %2 "+r"(dst_ptr1), // %3 "+r"(dst_width, // %4 "+r"(src_temp), // %5 "+r"(src_temp1) // %6 : : "memory", "cc", "q0", "q1", "q2", "q3", "q4", "q5", "q14", "d31" // Clobber List ); } void ScaleUVRowUp2_Linear_NEON(const uint8_t* src_ptr, uint8_t* dst_ptr, int dst_width) { const uint8_t* src_temp = src_ptr + 2; asm volatile( "vmov.u8 d30, #3 \n" "1: \n" "vld1.8 {d4}, [%0]! \n" // 00112233 (1u1v) "vld1.8 {d5}, [%3]! \n" // 11223344 (1u1v) "vmovl.u8 q0, d4 \n" // 00112233 (1u1v, 16b) "vmovl.u8 q1, d5 \n"java.lang.StringIndexOutOfBoundsException: Index 0 out of bound "vmlal.java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for leng "vmlal.u8 q1, d4, d30 \n" // 3*near+far (even) "vrshrn.u16 d1, q0, #2 \n" // 3/4*near+1/4*far (odd) "vrshrn.u16 d0, q1, #2 \n" // 3/4*near+1/4*far (even) "vst2.16} "subs 2,%,# "// 4 uv -> 8 uv "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width), // %2 "+r"(src_temp) // %3 : :"emory" cc","q0" "","","d30" java.lang.StringIndexOutOfBoundsException: Index 64 o ; } void ScaleUVRowUp2_Bilinear_NEON(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, ptrdiff_t dst_stride, int dst_width) { const uint8_t* src_ptr1 = src_ptr + src_stride; uint8_t* dst_ptr1 = dst_ptr + dst_stride; const uint8_t* src_temp = src_ptr + 2; const uint8_t* src_temp1 = src_ptr1 + 2; asm volatile( "vmov.u16 q15, #3 \n" "vmov.u8 d28, #3 \n" "1: \n" "vld1.8 {d4}, [%0]! \n" // 00112233 (1u1v) "vld1.8 {d5}, [%5]! \n" // 11223344 (1u1v) "vmovl.u8 q0, d4 \n" // 00112233 (1u1v, 16b) "vmovl.u8 q1, d5 \n" // 11223344 (1u1v, 16b) "vmlal.u8 q0, d5, d28 \n" // 3*near+far (1, odd) "vmlal.u8 q1, d4, d28 \n" // 3*near+far (1, even) "vld1.8 {d8}, [%1]! \n" // 00112233 (1u1v) "vld1.8 {d9}, [%6]! \n" // 11223344 (1u1v) "vmovl.u8 q2, d8 \n" // 00112233 (1u1v, 16b) "vmovl.u8 q3, d9 \n" // 11223344 (1u1v, 16b) "vmlal.u8 q2, d9, d28 \n" // 3*near+far (2, odd) "vmlal.u8 q3, d8, d28 \n" // 3*near+far (2, even) // e o // q1 q0 // q3 q2 "vmovq q4, q2 \n" "vmovq q5, q3 \n" "vmla.u16 q4, q0, q15 \n" // 9 3 3 1 (1, odd) "vmla.u16 q5, q1, q15 \n" // 9 3 3 1 (1, even) "vmla.u16 q0, q2, q15 \n" // 9 3 3 1 (2, odd) "vmla.u16 q1, q3, q15 \n" // 9 3 3 1 (2, even) // e o // q5 q4 // q1 q0 "vrshrn.u16 d2, q1, #4 \n" // 2, even "vrshrn.u16 d3, q0, #4 \n" // 2, odd "vrshrn.u16 d0, q5, #4 \n" // 1, even "vrshrn.u16 d1, q4, #4 \n" // 1, odd "vst2.16 {d0, d1}, [%2]! \n" // store "vst2.16 {d2, d3}, [%3]! \n" // store "subs %4, %4, #8 \n" // 4 uv -> 8 uv "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(src_ptr1), // %1 "+r"(dst_ptr), // %2 "+r"(dst_ptr1), // %3 "+r"(dst_width), // %4 "+r"(src_temp), // %5 "+r"(src_temp1) // %6 : : "memory", "cc", "q0", "q1", "q2", "q3", "q4", "q5", "d28", "q15" // Clobber List ); } void ScaleUVRowUp2_Linear_16_NEON(const uint16_t* src_ptr, uint16_t* dst_ptr, int dst_width) { const uint16_t* src_temp = src_ptr + 2; asm volatile( "vmov.u16 d30, #3 \n" "1: \n" "vld1.16 {q0}, [%0]! \n" // 00112233 (1u1v, 16) "vld1.16 {q1}, [%3]! \n" // 11223344 (1u1v, 16) "vmovl.u16 q2, d0 \n" // 0011 (1u1v, 32b) "vmovl.u16 q3, d2 \n" // 1122 (1u1v, 32b) "vmovl.u16 q4, d1 \n" // 2233 (1u1v, 32b) "vmovl.u16 q5, d3 \n" // 3344 (1u1v, 32b) "vmlal.u16 q2, d2, d30 \n" // 3*near+far (odd) "vmlal.u16 q3, d0, d30 \n" // 3*near+far (even) "vmlal.u16 q4, d3, d30 \n" // 3*near+far (odd) "vmlal.u16 q5, d1, d30 \n" // 3*near+far (even) "vrshrn.u32 d1, q2, #2 \n" // 3/4*near+1/4*far (odd) "vrshrn.u32 d0, q3, #2 \n" // 3/4*near+1/4*far (even) "vrshrn.u32 d3, q4, #2 \n" // 3/4*near+1/4*far (odd) "vrshrn.u32 d2, q5, #2 \n" // 3/4*near+1/4*far (even) "vst2.32 {d0, d1}, [%1]! \n" // store "vst2.32 {d2, d3}, [%1]! \n" // store "subs %2, %2, #8 \n" // 4 uv -> 8 uv "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width), // %2 "+r"(src_temp) // %3 : : "memory", "cc", "q0", "q1", "q2", "q3", "q4", "q5", "d30" // Clobber List ); } void ScaleUVRowUp2_Bilinear_16_NEON(const uint16_t* src_ptr, ptrdiff_t src_stride, uint16_t* dst_ptr, ptrdiff_t dst_stride, int dst_width) { const uint16_t* src_ptr1 = src_ptr + src_stride; uint16_t* dst_ptr1 = dst_ptr + dst_stride; const uint16_t* src_temp = src_ptr + 2; const uint16_t* src_temp1 = src_ptr1 + 2; asm volatile( "vmov.u16 d30, #3 \n" "vmov.u32 q14, #3 \n" "1: \n" "vld1.8 {d0}, [%0]! \n" // 0011 (1u1v) "vld1.8 {d1}, [%5]! \n" // 1122 (1u1v) "vmovl.u16 q2, d0 \n" // 0011 (1u1v, 32b) "vmovl.u16 q3, d1 \n" // 1122 (1u1v, 32b) "vmlal.u16 q2, d1, d30 \n" // 3*near+far (1, odd) "vmlal.u16 q3, d0, d30 \n" // 3*near+far (1, even) "vld1.8 {d0}, [%1]! \n" // 0011 (1u1v) "vld1.8 {d1}, [%6]! \n" // 1122 (1u1v) "vmovl.u16 q4, d0 \n" // 0011 (1u1v, 32b) "vmovl.u16 q5, d1 \n" // 1122 (1u1v, 32b) "vmlal.u16 q4, d1, d30 \n" // 3*near+far (2, odd) "vmlal.u16 q5, d0, d30 \n" // 3*near+far (2, even) "vmovq q0, q4 \n" "vmovq q1, q5 \n" "vmla.u32 q4, q2, q14 \n" // 9 3 3 1 (1, odd) "vmla.u32 q5, q3, q14 \n" // 9 3 3 1 (1, even) "vmla.u32 q2, q0, q14 \n" // 9 3 3 1 (2, odd) "vmla.u32 q3, q1, q14 \n" // 9 3 3 1 (2, even) "vrshrn.u32 d1, q4, #4 \n" // 1, odd "vrshrn.u32 d0, q5, #4 \n" // 1, even "vrshrn.u32 d3, q2, #4 \n" // 2, odd "vrshrn.u32 d2, q3, #4 \n" // 2, even "vst2.32 {d0, d1}, [%2]! \n" // store "vst2.32 {d2, d3}, [%3]! \n" // store "subs %4, %4, #4 \n" // 2 uv -> 4 uv "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(src_ptr1), // %1 "+r"(dst_ptr), // %2 "+r"(dst_ptr1), // %3 "+r"(dst_width), // %4 "+r"(src_temp), // %5 "+r"(src_temp1) // %6 : : "memory", "cc", "q0", "q1", "q2", "q3", "q4", "q5", "q14", "d30" // Clobber List ); } // Add a row of bytes to a row of shorts. Used for box filter. // Reads 16 bytes and accumulates to 16 shorts at a time. void ScaleAddRow_NEON(const uint8_t* src_ptr, uint16_t* dst_ptr, int src_width) { asm volatile( "1: \n" "vld1.16 {q1, q2}, [%1] \n" // load accumulator "vld1.8 {q0}, [%0]! \n" // load 16 bytes "vaddw.u8 q2, q2, d1 \n" // add "vaddw.u8 q1, q1, d0 \n" "vst1.16 {q1, q2}, [%1]! \n" // store accumulator "subs %2, %2, #16 \n" // 16 processed per loop "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(src_width) // %2 : : "memory", "cc", "q0", "q1", "q2" // Clobber List ); } // TODO(Yang Zhang): Investigate less load instructions for // the x/dx stepping #define LOAD2_DATA8_LANE(n) \ "lsr %5, %3, #16 \n" \ "add %6, %1, %5 \n" \ "add %3, %3, %4 \n" \ "vld2.8 {d6[" #n "], d7[" #n "]}, [%6] \n" // The NEON version mimics this formula (from row_common.cc): // #define BLENDER(a, b, f) (uint8_t)((int)(a) + // ((((int)((f)) * ((int)(b) - (int)(a))) + 0x8000) >> 16)) void ScaleFilterCols_NEON(uint8_t* dst_ptr, const uint8_t* src_ptr, int dst_width, int x, int dx) { int dx_offset[4] = {0, 1, 2, 3}; int* tmp = dx_offset; const uint8_t* src_tmp = src_ptr; asm volatile ( "vdup.32 q0, %3 \n" // x "vdup.32 q1, %4 \n" // dx "vld1.32 {q2}, [%5] \n" // 0 1 2 3 "vshl.i32 q3, q1, #2 \n" // 4 * dx "vmul.s32 q1, q1, q2 \n" // x , x + 1 * dx, x + 2 * dx, x + 3 * dx "vadd.s32 q1, q1, q0 \n" // x + 4 * dx, x + 5 * dx, x + 6 * dx, x + 7 * dx "vadd.s32 q2, q1, q3 \n" "vshl.i32 q0, q3, #1 \n" // 8 * dx "1: \n" LOAD2_DATA8_LANE(0) LOAD2_DATA8_LANE(1) LOAD2_DATA8_LANE(2) LOAD2_DATA8_LANE(3) LOAD2_DATA8_LANE(4) LOAD2_DATA8_LANE(5) LOAD2_DATA8_LANE(6) LOAD2_DATA8_LANE(7) "vmov q10, q1 \n" "vmov q11, q2 \n" "vuzp.16 q10, q11 \n" "vmovl.u8 q8, d6 \n" "vmovl.u8 q9, d7 \n" "vsubl.s16 q11, d18, d16 \n" "vsubl.s16 q12, d19, d17 \n" "vmovl.u16 q13, d20 \n" "vmovl.u16 q10, d21 \n" "vmul.s32 q11, q11, q13 \n" "vmul.s32 q12, q12, q10 \n" "vrshrn.s32 d18, q11, #16 \n" "vrshrn.s32 d19, q12, #16 \n" "vadd.s16 q8, q8, q9 \n" "vmovn.s16 d6, q8 \n" "vst1.8 {d6}, [%0]! \n" // store pixels "vadd.s32 q1, q1, q0 \n" "vadd.s32 q2, q2, q0 \n" "subs %2, %2, #8 \n" // 8 processed per loop "bgt 1b \n" : "+r"(dst_ptr), // %0 "+r"(src_ptr), // %1 "+r"(dst_width), // %2 "+r"(x), // %3 "+r"(dx), // %4 "+r"(tmp), // %5 "+r"(src_tmp) // %6 : : "memory", "cc", "q0", "q1", "q2", "q3", "q8", "q9", "q10", "q11", "q12", "q13" ); } #undef LOAD2_DATA8_LANE void ScaleARGBRowDown2_NEON(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst, int dst_width) { (void)src_stride; asm volatile( "1: \n" "vld4.32 {d0, d2, d4, d6}, [%0]! \n" // load 8 ARGB pixels. "vld4.32 {d1, d3, d5, d7}, [%0]! \n" // load next 8 ARGB "subs %2, %2, #8 \n" // 8 processed per loop "vmov q2, q1 \n" // load next 8 ARGB "vst2.32 {q2, q3}, [%1]! \n" // store odd pixels "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(dst), // %1 "+r"(dst_width) // %2 : : "memory", "cc", "q0", "q1", "q2", "q3" // Clobber List ); } // 46: f964 018d vld4.32 {d16,d18,d20,d22}, [r4]! // 4a: 3e04 subs r6, #4 // 4c: f964 118d vld4.32 {d17,d19,d21,d23}, [r4]! // 50: ef64 21f4 vorr q9, q10, q10 // 54: f942 038d vst2.32 {d16-d19}, [r2]! // 58: d1f5 bne.n 46 <ScaleARGBRowDown2_C+0x46> void ScaleARGBRowDown2Linear_NEON(const uint8_t* src_argb, ptrdiff_t src_stride, uint8_t* dst_argb, int dst_width) { (void)src_stride; asm volatile( "1: \n" "vld4.32 {d0, d2, d4, d6}, [%0]! \n" // load 8 ARGB pixels. "vld4.32 {d1, d3, d5, d7}, [%0]! \n" // load next 8 ARGB "subs %2, %2, #8 \n" // 8 processed per loop "vrhadd.u8 q0, q0, q1 \n" // rounding half add "vrhadd.u8 q1, q2, q3 \n" // rounding half add "vst2.32 {q0, q1}, [%1]! \n" "bgt 1b \n" : "+r"(src_argb), // %0 "+r"(dst_argb), // %1 "+r"(dst_width) // %2 : : "memory", "cc", "q0", "q1", "q2", "q3" // Clobber List ); } void ScaleARGBRowDown2Box_NEON(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst, int dst_width) { asm volatile( // change the stride to row 2 pointer "add %1, %1, %0 \n" "1: \n" "vld4.8 {d0, d2, d4, d6}, [%0]! \n" // load 8 ARGB pixels. "vld4.8 {d1, d3, d5, d7}, [%0]! \n" // load next 8 ARGB "subs %3, %3, #8 \n" // 8 processed per loop. "vpaddl.u8 q0, q0 \n" // B 16 bytes -> 8 shorts. "vpaddl.u8 q1, q1 \n" // G 16 bytes -> 8 shorts. "vpaddl.u8 q2, q2 \n" // R 16 bytes -> 8 shorts. "vpaddl.u8 q3, q3 \n" // A 16 bytes -> 8 shorts. "vld4.8 {d16, d18, d20, d22}, [%1]! \n" // load 8 more ARGB "vld4.8 {d17, d19, d21, d23}, [%1]! \n" // load last 8 ARGB "vpadal.u8 q0, q8 \n" // B 16 bytes -> 8 shorts. "vpadal.u8 q1, q9 \n" // G 16 bytes -> 8 shorts. "vpadal.u8 q2, q10 \n" // R 16 bytes -> 8 shorts. "vpadal.u8 q3, q11 \n" // A 16 bytes -> 8 shorts. "vrshrn.u16 d0, q0, #2 \n" // round and pack to bytes "vrshrn.u16 d1, q1, #2 \n" "vrshrn.u16 d2, q2, #2 \n" "vrshrn.u16 d3, q3, #2 \n" "vst4.8 {d0, d1, d2, d3}, [%2]! \n" "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(src_stride), // %1 "+r"(dst), // %2 "+r"(dst_width) // %3 : : "memory", "cc", "q0", "q1", "q2", "q3", "q8", "q9", "q10", "q11"); } // Reads 4 pixels at a time. // Alignment requirement: src_argb 4 byte aligned. void ScaleARGBRowDownEven_NEON(const uint8_t* src_argb, ptrdiff_t src_stride, int src_stepx, uint8_t* dst_argb, int dst_width) { (void)src_stride; asm volatile( "mov r12, %3, lsl #2 \n" "1: \n" "vld1.32 {d0[0]}, [%0], r12 \n" "vld1.32 {d0[1]}, [%0], r12 \n" "vld1.32 {d1[0]}, [%0], r12 \n" "vld1.32 {d1[1]}, [%0], r12 \n" "subs %2, %2, #4 \n" // 4 pixels per loop. "vst1.8 {q0}, [%1]! \n" "bgt 1b \n" : "+r"(src_argb), // %0 "+r"(dst_argb), // %1 "+r"(dst_width) // %2 : "r"(src_stepx) // %3 : "memory", "cc", "r12", "q0"); } // Reads 4 pixels at a time. // Alignment requirement: src_argb 4 byte aligned. void ScaleARGBRowDownEvenBox_NEON(const uint8_t* src_argb, ptrdiff_t src_stride, int src_stepx, uint8_t* dst_argb, int dst_width) { asm volatile( "mov r12, %4, lsl #2 \n" "add %1, %1, %0 \n" "1: \n" "vld1.8 {d0}, [%0], r12 \n" // 4 2x2 blocks -> 2x1 "vld1.8 {d1}, [%1], r12 \n" "vld1.8 {d2}, [%0], r12 \n" "vld1.8 {d3}, [%1], r12 \n" "vld1.8 {d4}, [%0], r12 \n" "vld1.8 {d5}, [%1], r12 \n" "vld1.8 {d6}, [%0], r12 \n" "vld1.8 {d7}, [%1], r12 \n" "vaddl.u8 q0, d0, d1 \n" "vaddl.u8 q1, d2, d3 \n" "vaddl.u8 q2, d4, d5 \n" "vaddl.u8 q3, d6, d7 \n" "vswp.8 d1, d2 \n" // ab_cd -> ac_bd "vswp.8 d5, d6 \n" // ef_gh -> eg_fh "vadd.u16 q0, q0, q1 \n" // (a+b)_(c+d) "vadd.u16 q2, q2, q3 \n" // (e+f)_(g+h) "vrshrn.u16 d0, q0, #2 \n" // first 2 pixels. "vrshrn.u16 d1, q2, #2 \n" // next 2 pixels. "subs %3, %3, #4 \n" // 4 pixels per loop. "vst1.8 {q0}, [%2]! \n" "bgt 1b \n" : "+r"(src_argb), // %0 "+r"(src_stride), // %1 "+r"(dst_argb), // %2 "+r"(dst_width) // %3 : "r"(src_stepx) // %4 : "memory", "cc", "r12", "q0", "q1", "q2", "q3"); } // TODO(Yang Zhang): Investigate less load instructions for // the x/dx stepping #define LOAD1_DATA32_LANE(dn, n) \ "lsr %5, %3, #16 \n" \ "add %6, %1, %5, lsl #2 \n" \ "add %3, %3, %4 \n" \ "vld1.32 {" #dn "[" #n "]}, [%6] \n" void ScaleARGBCols_NEON(uint8_t* dst_argb, const uint8_t* src_argb, int dst_width, int x, int dx) { int tmp; const uint8_t* src_tmp = src_argb; asm volatile( "1: \n" // clang-format off LOAD1_DATA32_LANE(d0, 0) LOAD1_DATA32_LANE(d0, 1) LOAD1_DATA32_LANE(d1, 0) LOAD1_DATA32_LANE(d1, 1) LOAD1_DATA32_LANE(d2, 0) LOAD1_DATA32_LANE(d2, 1) LOAD1_DATA32_LANE(d3, 0) LOAD1_DATA32_LANE(d3, 1) // clang-format on "vst1.32 {q0, q1}, [%0]! \n" // store pixels "subs %2, %2, #8 \n" // 8 processed per loop "bgt 1b \n" : "+r"(dst_argb), // %0 "+r"(src_argb), // %1 "+r"(dst_width), // %2 "+r"(x), // %3 "+r"(dx), // %4 "=&r"(tmp), // %5 "+r"(src_tmp) // %6 : : "memory", "cc", "q0", "q1"); } #undef LOAD1_DATA32_LANE // TODO(Yang Zhang): Investigate less load instructions for // the x/dx stepping #define LOAD2_DATA32_LANE(dn1, dn2, n) \ "lsr %5, %3, #16 \n" \ "add %6, %1, %5, lsl #2 \n" \ "add %3, %3, %4 \n" \ "vld2.32 {" #dn1 "[" #n "], " #dn2 "[" #n "]}, [%6] \n" void ScaleARGBFilterCols_NEON(uint8_t* dst_argb, const uint8_t* src_argb, int dst_width, int x, int dx) { int dx_offset[4] = {0, 1, 2, 3}; int* tmp = dx_offset; const uint8_t* src_tmp = src_argb; asm volatile ( "vdup.32 q0, %3 \n" // x "vdup.32 q1, %4 \n" // dx "vld1.32 {q2}, [%5] \n" // 0 1 2 3 "vshl.i32 q9, q1, #2 \n" // 4 * dx "vmul.s32 q1, q1, q2 \n" "vmov.i8 q3, #0x7f \n" // 0x7F "vmov.i16 q15, #0x7f \n" // 0x7F // x , x + 1 * dx, x + 2 * dx, x + 3 * dx "vadd.s32 q8, q1, q0 \n" "1: \n" // d0, d1: a // d2, d3: b LOAD2_DATA32_LANE(d0, d2, 0) LOAD2_DATA32_LANE(d0, d2, 1) LOAD2_DATA32_LANE(d1, d3, 0) LOAD2_DATA32_LANE(d1, d3, 1) "vshrn.i32 d22, q8, #9 \n" "vand.16 d22, d22, d30 \n" "vdup.8 d24, d22[0] \n" "vdup.8 d25, d22[2] \n" "vdup.8 d26, d22[4] \n" "vdup.8 d27, d22[6] \n" "vext.8 d4, d24, d25, #4 \n" "vext.8 d5, d26, d27, #4 \n" // f "veor.8 q10, q2, q3 \n" // 0x7f ^ f "vmull.u8 q11, d0, d20 \n" "vmull.u8 q12, d1, d21 \n" "vmull.u8 q13, d2, d4 \n" "vmull.u8 q14, d3, d5 \n" "vadd.i16 q11, q11, q13 \n" "vadd.i16 q12, q12, q14 \n" "vshrn.i16 d0, q11, #7 \n" "vshrn.i16 d1, q12, #7 \n" "vst1.32 {d0, d1}, [%0]! \n" // store pixels "vadd.s32 q8, q8, q9 \n" "subs %2, %2, #4 \n" // 4 processed per loop "bgt 1b \n" : "+r"(dst_argb), // %0 "+r"(src_argb), // %1 "+r"(dst_width), // %2 "+r"(x), // %3 "+r"(dx), // %4 "+r"(tmp), // %5 "+r"(src_tmp) // %6 : : "memory", "cc", "q0", "q1", "q2", "q3", "q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15" ); } #undef LOAD2_DATA32_LANE void ScaleUVRowDown2_NEON(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst, int dst_width) { (void)src_stride; asm volatile( "1: \n" "vld2.16 {d0, d2}, [%0]! \n" // load 8 UV pixels. "vld2.16 {d1, d3}, [%0]! \n" // load next 8 UV "subs %2, %2, #8 \n" // 8 processed per loop. "vst1.16 {q1}, [%1]! \n" // store 8 UV "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(dst), // %1 "+r"(dst_width) // %2 : : "memory", "cc", "q0", "q1"); } void ScaleUVRowDown2Linear_NEON(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst, int dst_width) { (void)src_stride; asm volatile( "1: \n" "vld2.16 {d0, d2}, [%0]! \n" // load 8 UV pixels. "vld2.16 {d1, d3}, [%0]! \n" // load next 8 UV "subs %2, %2, #8 \n" // 8 processed per loop. "vrhadd.u8 q0, q0, q1 \n" // rounding half add "vst1.16 {q0}, [%1]! \n" // store 8 UV "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(dst), // %1 "+r"(dst_width) // %2 : : "memory", "cc", "q0", "q1"); } void ScaleUVRowDown2Box_NEON(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst, int dst_width) { asm volatile( // change the stride to row 2 pointer "add %1, %1, %0 \n" "1: \n" "vld2.8 {d0, d2}, [%0]! \n" // load 8 UV pixels. "vld2.8 {d1, d3}, [%0]! \n" // load next 8 UV "subs %3, %3, #8 \n" // 8 processed per loop. "vpaddl.u8 q0, q0 \n" // U 16 bytes -> 8 shorts. "vpaddl.u8 q1, q1 \n" // V 16 bytes -> 8 shorts. "vld2.8 {d16, d18}, [%1]! \n" // load 8 more UV "vld2.8 {d17, d19}, [%1]! \n" // load last 8 UV "vpadal.u8 q0, q8 \n" // U 16 bytes -> 8 shorts. "vpadal.u8 q1, q9 \n" // V 16 bytes -> 8 shorts. "vrshrn.u16 d0, q0, #2 \n" // round and pack to bytes "vrshrn.u16 d1, q1, #2 \n" "vst2.8 {d0, d1}, [%2]! \n" "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(src_stride), // %1 "+r"(dst), // %2 "+r"(dst_width) // %3 : : "memory", "cc", "q0", "q1", "q8", "q9"); } // Reads 4 pixels at a time. void ScaleUVRowDownEven_NEON(const uint8_t* src_ptr, ptrdiff_t src_stride, int src_stepx, // pixel step uint8_t* dst_ptr, int dst_width) { const uint8_t* src1_ptr = src_ptr + src_stepx * 2; const uint8_t* src2_ptr = src_ptr + src_stepx * 4; const uint8_t* src3_ptr = src_ptr + src_stepx * 6; (void)src_stride; asm volatile( "1: \n" "vld1.16 {d0[0]}, [%0], %6 \n" "vld1.16 {d0[1]}, [%1], %6 \n" "vld1.16 {d0[2]}, [%2], %6 \n" "vld1.16 {d0[3]}, [%3], %6 \n" "subs %5, %5, #4 \n" // 4 pixels per loop. "vst1.8 {d0}, [%4]! \n" "bgt 1b \n" : "+r"(src_ptr), // %0 "+r"(src1_ptr), // %1 "+r"(src2_ptr), // %2 "+r"(src3_ptr), // %3 "+r"(dst_ptr), // %4 "+r"(dst_width) // %5 : "r"(src_stepx * 8) // %6 : "memory", "cc", "d0"); } #endif // defined(__ARM_NEON__) && !defined(__aarch64__) #ifdef __cplusplus } // extern "C" } // namespace libyuv #endif
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2026-10-11