/* * Copyright 2013 The LibYuv Project Authors. All rights reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant 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 libyuv { extern "C" { #endif // This module is for GCC x86 and x64. #if !defined(LIBYUV_DISABLE_X86) && \ (defined(__x86_64__) || (defined(__i386__) && !defined(_MSC_VER))) // Offsets for source bytes 0 to 9 static const uvec8 kShuf0 = {0, 1, 3, 4, 5, 7, 8, 9, 128, 128, 128, 128, 128, 128, 128, 128}; // Offsets for source bytes 11 to 20 with 8 subtracted = 3 to 12. static const uvec8 kShuf1 = {3, 4, 5, 7, 8, 9, 11, 12, 128, 128, 128, 128, 128, 128, 128, 128}; // Offsets for source bytes 21 to 31 with 16 subtracted = 5 to 31. static const uvec8 kShuf2 = {5, 7, 8, 9, 11, 12, 13, 15, 128, 128, 128, 128, 128, 128, 128, 128}; // Offsets for source bytes 0 to 10 static const uvec8 kShuf01 = {0, 1, 1, 2, 2, 3, 4, 5, 5, 6, 6, 7, 8, 9, 9, 10}; // Offsets for source bytes 10 to 21 with 8 subtracted = 3 to 13. static const uvec8 kShuf11 = {2, 3, 4, 5, 5, 6, 6, 7, 8, 9, 9, 10, 10, 11, 12, 13}; // Offsets for source bytes 21 to 31 with 16 subtracted = 5 to 31. static const uvec8 kShuf21 = {5, 6, 6, 7, 8, 9, 9, 10, 10, 11, 12, 13, 13, 14, 14, 15}; // Coefficients for source bytes 0 to 10 static const uvec8 kMadd01 = {3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2}; // Coefficients for source bytes 10 to 21 static const uvec8 kMadd11 = {1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1}; // Coefficients for source bytes 21 to 31 static const uvec8 kMadd21 = {2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3}; // Coefficients for source bytes 21 to 31 static const vec16 kRound34 = {2, 2, 2, 2, 2, 2, 2, 2}; static const uvec8 kShuf38a = {0, 3, 6, 8, 11, 14, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128}; static const uvec8 kShuf38b = {128, 128, 128, 128, 128, 128, 0, 3, 6, 8, 11, 14, 128, 128, 128, 128}; // Arrange words 0,3,6 into 0,1,2 static const uvec8 kShufAc = {0, 1, 6, 7, 12, 13, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128}; // Arrange words 0,3,6 into 3,4,5 static const uvec8 kShufAc3 = {128, 128, 128, 128, 128, 128, 0, 1, 6, 7, 12, 13, 128, 128, 128, 128}; // Scaling values for boxes of 3x3 and 2x3 static const uvec16 kScaleAc33 = {65536 / 9, 65536 / 9, 65536 / 6, 65536 / 9, 65536 / 9, 65536 / 6, 0, 0}; // Arrange first value for pixels 0,1,2,3,4,5 static const uvec8 kShufAb0 = {0, 128, 3, 128, 6, 128, 8, 128, 11, 128, 14, 128, 128, 128, 128, 128}; // Arrange second value for pixels 0,1,2,3,4,5 static const uvec8 kShufAb1 = {1, 128, 4, 128, 7, 128, 9, 128, 12, 128, 15, 128, 128, 128, 128, 128}; // Arrange third value for pixels 0,1,2,3,4,5 static const uvec8 kShufAb2 = {2, 128, 5, 128, 128, 128, 10, 128, 13, 128, 128, 128, 128, 128, 128, 128}; // Scaling values for boxes of 3x2 and 2x2 static const uvec16 kScaleAb2 = {65536 / 3, 65536 / 3, 65536 / 2, 65536 / 3, 65536 / 3, 65536 / 2, 0, 0}; // GCC versions of row functions are verbatim conversions from Visual C. // Generated using gcc disassembly on Visual C object file: // objdump -D yuvscaler.obj >yuvscaler.txt void ScaleRowDown2_SSSE3(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { (void)src_stride; asm volatile( // 16 pixel loop. LABELALIGN "1: \n" "movdqu (%0),%%xmm0 \n" "movdqu 0x10(%0),%%xmm1 \n" "lea 0x20(%0),%0 \n" "psrlw $0x8,%%xmm0 \n" "psrlw $0x8,%%xmm1 \n" "packuswb %%xmm1,%%xmm0 \n" "movdqu %%xmm0,(%1) \n" "lea 0x10(%1),%1 \n" "sub $0x10,%2 \n" "jg 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width) // %2 ::"memory", "cc", "xmm0", "xmm1"); } void ScaleRowDown2Linear_SSSE3(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { (void)src_stride; asm volatile( "pcmpeqb %%xmm4,%%xmm4 \n" "psrlw $0xf,%%xmm4 \n" "packuswb %%xmm4,%%xmm4 \n" "pxor %%xmm5,%%xmm5 \n" LABELALIGN "1: \n" "movdqu (%0),%%xmm0 \n" "movdqu 0x10(%0),%%xmm1 \n" "lea 0x20(%0),%0 \n" "pmaddubsw %%xmm4,%%xmm0 \n" "pmaddubsw %%xmm4,%%xmm1 \n" "pavgw %%xmm5,%%xmm0 \n" "pavgw %%xmm5,%%xmm1 \n" "packuswb %%xmm1,%%xmm0 \n" "movdqu %%xmm0,(%1) \n" "lea 0x10(%1),%1 \n" "sub $0x10,%2 \n" "jg 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width) // %2 ::"memory", "cc", "xmm0", "xmm1", "xmm4", "xmm5"); } void ScaleRowDown2Box_SSSE3(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { asm volatile( "pcmpeqb %%xmm4,%%xmm4 \n" "psrlw $0xf,%%xmm4 \n" "packuswb %%xmm4,%%xmm4 \n" "pxor %%xmm5,%%xmm5 \n" LABELALIGN "1: \n" "movdqu (%0),%%xmm0 \n" "movdqu 0x10(%0),%%xmm1 \n" "movdqu 0x00(%0,%3,1),%%xmm2 \n" "movdqu 0x10(%0,%3,1),%%xmm3 \n" "lea 0x20(%0),%0 \n" "pmaddubsw %%xmm4,%%xmm0 \n" "pmaddubsw %%xmm4,%%xmm1 \n" "pmaddubsw %%xmm4,%%xmm2 \n" "pmaddubsw %%xmm4,%%xmm3 \n" "paddw %%xmm2,%%xmm0 \n" "paddw %%xmm3,%%xmm1 \n" "psrlw $0x1,%%xmm0 \n" "psrlw $0x1,%%xmm1 \n" "pavgw %%xmm5,%%xmm0 \n" "pavgw %%xmm5,%%xmm1 \n" "packuswb %%xmm1,%%xmm0 \n" "movdqu %%xmm0,(%1) \n" "lea 0x10(%1),%1 \n" "sub $0x10,%2 \n" "jg 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width) // %2 : "r"((intptr_t)(src_stride)) // %3 : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"); } #ifdef HAS_SCALEROWDOWN2_AVX2 void ScaleRowDown2_AVX2(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { (void)src_stride; asm volatile( LABELALIGN "1: \n" "vmovdqu (%0),%%ymm0 \n" "vmovdqu 0x20(%0),%%ymm1 \n" "lea 0x40(%0),%0 \n" "vpsrlw $0x8,%%ymm0,%%ymm0 \n" "vpsrlw $0x8,%%ymm1,%%ymm1 \n" "vpackuswb %%ymm1,%%ymm0,%%ymm0 \n" "vpermq $0xd8,%%ymm0,%%ymm0 \n" "vmovdqu %%ymm0,(%1) \n" "lea 0x20(%1),%1 \n" "sub $0x20,%2 \n" "jg 1b \n" "vzeroupper \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width) // %2 ::"memory", "cc", "xmm0", "xmm1"); } void ScaleRowDown2Linear_AVX2(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { (void)src_stride; asm volatile( "vpcmpeqb %%ymm4,%%ymm4,%%ymm4 \n" "vpsrlw $0xf,%%ymm4,%%ymm4 \n" "vpackuswb %%ymm4,%%ymm4,%%ymm4 \n" "vpxor %%ymm5,%%ymm5,%%ymm5 \n" LABELALIGN "1: \n" "vmovdqu (%0),%%ymm0 \n" "vmovdqu 0x20(%0),%%ymm1 \n" "lea 0x40(%0),%0 \n" "vpmaddubsw %%ymm4,%%ymm0,%%ymm0 \n" "vpmaddubsw %%ymm4,%%ymm1,%%ymm1 \n" "vpavgw %%ymm5,%%ymm0,%%ymm0 \n" "vpavgw %%ymm5,%%ymm1,%%ymm1 \n" "vpackuswb %%ymm1,%%ymm0,%%ymm0 \n" "vpermq $0xd8,%%ymm0,%%ymm0 \n" "vmovdqu %%ymm0,(%1) \n" "lea 0x20(%1),%1 \n" "sub $0x20,%2 \n" "jg 1b \n" "vzeroupper \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width) // %2 ::"memory", "cc", "xmm0", "xmm1", "xmm4", "xmm5"); } void ScaleRowDown2Box_AVX2(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { asm volatile( "vpcmpeqb %%ymm4,%%ymm4,%%ymm4 \n" "vpsrlw $0xf,%%ymm4,%%ymm4 \n" "vpackuswb %%ymm4,%%ymm4,%%ymm4 \n" "vpxor %%ymm5,%%ymm5,%%ymm5 \n" LABELALIGN "1: \n" "vmovdqu (%0),%%ymm0 \n" "vmovdqu 0x20(%0),%%ymm1 \n" "vmovdqu 0x00(%0,%3,1),%%ymm2 \n" "vmovdqu 0x20(%0,%3,1),%%ymm3 \n" "lea 0x40(%0),%0 \n" "vpmaddubsw %%ymm4,%%ymm0,%%ymm0 \n" "vpmaddubsw %%ymm4,%%ymm1,%%ymm1 \n" "vpmaddubsw %%ymm4,%%ymm2,%%ymm2 \n" "vpmaddubsw %%ymm4,%%ymm3,%%ymm3 \n" "vpaddw %%ymm2,%%ymm0,%%ymm0 \n" "vpaddw %%ymm3,%%ymm1,%%ymm1 \n" "vpsrlw $0x1,%%ymm0,%%ymm0 \n" "vpsrlw $0x1,%%ymm1,%%ymm1 \n" "vpavgw %%ymm5,%%ymm0,%%ymm0 \n" "vpavgw %%ymm5,%%ymm1,%%ymm1 \n" "vpackuswb %%ymm1,%%ymm0,%%ymm0 \n" "vpermq $0xd8,%%ymm0,%%ymm0 \n" "vmovdqu %%ymm0,(%1) \n" "lea 0x20(%1),%1 \n" "sub $0x20,%2 \n" "jg 1b \n" "vzeroupper \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width) // %2 : "r"((intptr_t)(src_stride)) // %3 : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"); } #endif // HAS_SCALEROWDOWN2_AVX2 void ScaleRowDown4_SSSE3(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { (void)src_stride; asm volatile( "pcmpeqb %%xmm5,%%xmm5 \n" "psrld $0x18,%%xmm5 \n" "pslld $0x10,%%xmm5 \n" LABELALIGN "1: \n" "movdqu (%0),%%xmm0 \n" "movdqu 0x10(%0),%%xmm1 \n" "lea 0x20(%0),%0 \n" "pand %%xmm5,%%xmm0 \n" "pand %%xmm5,%%xmm1 \n" "packuswb %%xmm1,%%xmm0 \n" "psrlw $0x8,%%xmm0 \n" "packuswb %%xmm0,%%xmm0 \n" "movq %%xmm0,(%1) \n" "lea 0x8(%1),%1 \n" "sub $0x8,%2 \n" "jg 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width) // %2 ::"memory", "cc", "xmm0", "xmm1", "xmm5"); } void ScaleRowDown4Box_SSSE3(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { intptr_t stridex3; asm volatile( "pcmpeqb %%xmm4,%%xmm4 \n" "psrlw $0xf,%%xmm4 \n" "movdqa %%xmm4,%%xmm5 \n" "packuswb %%xmm4,%%xmm4 \n" "psllw $0x3,%%xmm5 \n" "lea 0x00(%4,%4,2),%3 \n" LABELALIGN "1: \n" "movdqu (%0),%%xmm0 \n" "movdqu 0x10(%0),%%xmm1 \n" "movdqu 0x00(%0,%4,1),%%xmm2 \n" "movdqu 0x10(%0,%4,1),%%xmm3 \n" "pmaddubsw %%xmm4,%%xmm0 \n" "pmaddubsw %%xmm4,%%xmm1 \n" "pmaddubsw %%xmm4,%%xmm2 \n" "pmaddubsw %%xmm4,%%xmm3 \n" "paddw %%xmm2,%%xmm0 \n" "paddw %%xmm3,%%xmm1 \n" "movdqu 0x00(%0,%4,2),%%xmm2 \n" "movdqu 0x10(%0,%4,2),%%xmm3 \n" "pmaddubsw %%xmm4,%%xmm2 \n" "pmaddubsw %%xmm4,%%xmm3 \n" "paddw %%xmm2,%%xmm0 \n" "paddw %%xmm3,%%xmm1 \n" "movdqu 0x00(%0,%3,1),%%xmm2 \n" "movdqu 0x10(%0,%3,1),%%xmm3 \n" "lea 0x20(%0),%0 \n" "pmaddubsw %%xmm4,%%xmm2 \n" "pmaddubsw %%xmm4,%%xmm3 \n" "paddw %%xmm2,%%xmm0 \n" "paddw %%xmm3,%%xmm1 \n" "phaddw %%xmm1,%%xmm0 \n" "paddw %%xmm5,%%xmm0 \n" "psrlw $0x4,%%xmm0 \n" "packuswb %%xmm0,%%xmm0 \n" "movq %%xmm0,(%1) \n" "lea 0x8(%1),%1 \n" "sub $0x8,%2 \n" "jg 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width), // %2 "=&r"(stridex3) // %3 : "r"((intptr_t)(src_stride)) // %4 : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"); } #ifdef HAS_SCALEROWDOWN4_AVX2 void ScaleRowDown4_AVX2(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { (void)src_stride; asm volatile( "vpcmpeqb %%ymm5,%%ymm5,%%ymm5 \n" "vpsrld $0x18,%%ymm5,%%ymm5 \n" "vpslld $0x10,%%ymm5,%%ymm5 \n" LABELALIGN "1: \n" "vmovdqu (%0),%%ymm0 \n" "vmovdqu 0x20(%0),%%ymm1 \n" "lea 0x40(%0),%0 \n" "vpand %%ymm5,%%ymm0,%%ymm0 \n" "vpand %%ymm5,%%ymm1,%%ymm1 \n" "vpackuswb %%ymm1,%%ymm0,%%ymm0 \n" "vpermq $0xd8,%%ymm0,%%ymm0 \n" "vpsrlw $0x8,%%ymm0,%%ymm0 \n" "vpackuswb %%ymm0,%%ymm0,%%ymm0 \n" "vpermq $0xd8,%%ymm0,%%ymm0 \n" "vmovdqu %%xmm0,(%1) \n" "lea 0x10(%1),%1 \n" "sub $0x10,%2 \n" "jg 1b \n" "vzeroupper \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width) // %2 ::"memory", "cc", "xmm0", "xmm1", "xmm5"); } void ScaleRowDown4Box_AVX2(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { asm volatile( "vpcmpeqb %%ymm4,%%ymm4,%%ymm4 \n" "vpsrlw $0xf,%%ymm4,%%ymm4 \n" "vpsllw $0x3,%%ymm4,%%ymm5 \n" "vpackuswb %%ymm4,%%ymm4,%%ymm4 \n" LABELALIGN "1: \n" "vmovdqu (%0),%%ymm0 \n" "vmovdqu 0x20(%0),%%ymm1 \n" "vmovdqu 0x00(%0,%3,1),%%ymm2 \n" "vmovdqu 0x20(%0,%3,1),%%ymm3 \n" "vpmaddubsw %%ymm4,%%ymm0,%%ymm0 \n" "vpmaddubsw %%ymm4,%%ymm1,%%ymm1 \n" "vpmaddubsw %%ymm4,%%ymm2,%%ymm2 \n" "vpmaddubsw %%ymm4,%%ymm3,%%ymm3 \n" "vpaddw %%ymm2,%%ymm0,%%ymm0 \n" "vpaddw %%ymm3,%%ymm1,%%ymm1 \n" "vmovdqu 0x00(%0,%3,2),%%ymm2 \n" "vmovdqu 0x20(%0,%3,2),%%ymm3 \n" "vpmaddubsw %%ymm4,%%ymm2,%%ymm2 \n" "vpmaddubsw %%ymm4,%%ymm3,%%ymm3 \n" "vpaddw %%ymm2,%%ymm0,%%ymm0 \n" "vpaddw %%ymm3,%%ymm1,%%ymm1 \n" "vmovdqu 0x00(%0,%4,1),%%ymm2 \n" "vmovdqu 0x20(%0,%4,1),%%ymm3 \n" "lea 0x40(%0),%0 \n" "vpmaddubsw %%ymm4,%%ymm2,%%ymm2 \n" "vpmaddubsw %%ymm4,%%ymm3,%%ymm3 \n" "vpaddw %%ymm2,%%ymm0,%%ymm0 \n" "vpaddw %%ymm3,%%ymm1,%%ymm1 \n" "vphaddw %%ymm1,%%ymm0,%%ymm0 \n" "vpermq $0xd8,%%ymm0,%%ymm0 \n" "vpaddw %%ymm5,%%ymm0,%%ymm0 \n" "vpsrlw $0x4,%%ymm0,%%ymm0 \n" "vpackuswb %%ymm0,%%ymm0,%%ymm0 \n" "vpermq $0xd8,%%ymm0,%%ymm0 \n" "vmovdqu %%xmm0,(%1) \n" "lea 0x10(%1),%1 \n" "sub $0x10,%2 \n" "jg 1b \n" "vzeroupper \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width) // %2 : "r"((intptr_t)(src_stride)), // %3 "r"((intptr_t)(src_stride * 3)) // %4 : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"); } #endif // HAS_SCALEROWDOWN4_AVX2 void ScaleRowDown34_SSSE3(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { (void)src_stride; asm volatile( "movdqa %0,%%xmm3 \n" "movdqa %1,%%xmm4 \n" "movdqa %2,%%xmm5 \n" : : "m"(kShuf0), // %0 "m"(kShuf1), // %1 "m"(kShuf2) // %2 ); asm volatile( LABELALIGN "1: \n" "movdqu (%0),%%xmm0 \n" "movdqu 0x10(%0),%%xmm2 \n" "lea 0x20(%0),%0 \n" "movdqa %%xmm2,%%xmm1 \n" "palignr $0x8,%%xmm0,%%xmm1 \n" "pshufb %%xmm3,%%xmm0 \n" "pshufb %%xmm4,%%xmm1 \n" "pshufb %%xmm5,%%xmm2 \n" "movq %%xmm0,(%1) \n" "movq %%xmm1,0x8(%1) \n" "movq %%xmm2,0x10(%1) \n" "lea 0x18(%1),%1 \n" "sub $0x18,%2 \n" "jg 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width) // %2 ::"memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"); } void ScaleRowDown34_1_Box_SSSE3(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { asm volatile( "movdqa %0,%%xmm2 \n" // kShuf01 "movdqa %1,%%xmm3 \n" // kShuf11 "movdqa %2,%%xmm4 \n" // kShuf21 : : "m"(kShuf01), // %0 "m"(kShuf11), // %1 "m"(kShuf21) // %2 ); asm volatile( "movdqa %0,%%xmm5 \n" // kMadd01 "movdqa %1,%%xmm0 \n" // kMadd11 "movdqa %2,%%xmm1 \n" // kRound34 : : "m"(kMadd01), // %0 "m"(kMadd11), // %1 "m"(kRound34) // %2 ); asm volatile( LABELALIGN "1: \n" "movdqu (%0),%%xmm6 \n" "movdqu 0x00(%0,%3,1),%%xmm7 \n" "pavgb %%xmm7,%%xmm6 \n" "pshufb %%xmm2,%%xmm6 \n" "pmaddubsw %%xmm5,%%xmm6 \n" "paddsw %%xmm1,%%xmm6 \n" "psrlw $0x2,%%xmm6 \n" "packuswb %%xmm6,%%xmm6 \n" "movq %%xmm6,(%1) \n" "movdqu 0x8(%0),%%xmm6 \n" "movdqu 0x8(%0,%3,1),%%xmm7 \n" "pavgb %%xmm7,%%xmm6 \n" "pshufb %%xmm3,%%xmm6 \n" "pmaddubsw %%xmm0,%%xmm6 \n" "paddsw %%xmm1,%%xmm6 \n" "psrlw $0x2,%%xmm6 \n" "packuswb %%xmm6,%%xmm6 \n" "movq %%xmm6,0x8(%1) \n" "movdqu 0x10(%0),%%xmm6 \n" "movdqu 0x10(%0,%3,1),%%xmm7 \n" "lea 0x20(%0),%0 \n" "pavgb %%xmm7,%%xmm6 \n" "pshufb %%xmm4,%%xmm6 \n" "pmaddubsw %4,%%xmm6 \n" "paddsw %%xmm1,%%xmm6 \n" "psrlw $0x2,%%xmm6 \n" "packuswb %%xmm6,%%xmm6 \n" "movq %%xmm6,0x10(%1) \n" "lea 0x18(%1),%1 \n" "sub $0x18,%2 \n" "jg 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width) // %2 : "r"((intptr_t)(src_stride)), // %3 "m"(kMadd21) // %4 : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"); } void ScaleRowDown34_0_Box_SSSE3(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { asm volatile( "movdqa %0,%%xmm2 \n" // kShuf01 "movdqa %1,%%xmm3 \n" // kShuf11 "movdqa %2,%%xmm4 \n" // kShuf21 : : "m"(kShuf01), // %0 "m"(kShuf11), // %1 "m"(kShuf21) // %2 ); asm volatile( "movdqa %0,%%xmm5 \n" // kMadd01 "movdqa %1,%%xmm0 \n" // kMadd11 "movdqa %2,%%xmm1 \n" // kRound34 : : "m"(kMadd01), // %0 "m"(kMadd11), // %1 "m"(kRound34) // %2 ); asm volatile( LABELALIGN "1: \n" "movdqu (%0),%%xmm6 \n" "movdqu 0x00(%0,%3,1),%%xmm7 \n" "pavgb %%xmm6,%%xmm7 \n" "pavgb %%xmm7,%%xmm6 \n" "pshufb %%xmm2,%%xmm6 \n" "pmaddubsw %%xmm5,%%xmm6 \n" "paddsw %%xmm1,%%xmm6 \n" "psrlw $0x2,%%xmm6 \n" "packuswb %%xmm6,%%xmm6 \n" "movq %%xmm6,(%1) \n" "movdqu 0x8(%0),%%xmm6 \n" "movdqu 0x8(%0,%3,1),%%xmm7 \n" "pavgb %%xmm6,%%xmm7 \n" "pavgb %%xmm7,%%xmm6 \n" "pshufb %%xmm3,%%xmm6 \n" "pmaddubsw %%xmm0,%%xmm6 \n" "paddsw %%xmm1,%%xmm6 \n" "psrlw $0x2,%%xmm6 \n" "packuswb %%xmm6,%%xmm6 \n" "movq %%xmm6,0x8(%1) \n" "movdqu 0x10(%0),%%xmm6 \n" "movdqu 0x10(%0,%3,1),%%xmm7 \n" "lea 0x20(%0),%0 \n" "pavgb %%xmm6,%%xmm7 \n" "pavgb %%xmm7,%%xmm6 \n" "pshufb %%xmm4,%%xmm6 \n" "pmaddubsw %4,%%xmm6 \n" "paddsw %%xmm1,%%xmm6 \n" "psrlw $0x2,%%xmm6 \n" "packuswb %%xmm6,%%xmm6 \n" "movq %%xmm6,0x10(%1) \n" "lea 0x18(%1),%1 \n" "sub $0x18,%2 \n" "jg 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width) // %2 : "r"((intptr_t)(src_stride)), // %3 "m"(kMadd21) // %4 : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"); } void ScaleRowDown38_SSSE3(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { (void)src_stride; asm volatile( "movdqa %3,%%xmm4 \n" "movdqa %4,%%xmm5 \n" LABELALIGN "1: \n" "movdqu (%0),%%xmm0 \n" "movdqu 0x10(%0),%%xmm1 \n" "lea 0x20(%0),%0 \n" "pshufb %%xmm4,%%xmm0 \n" "pshufb %%xmm5,%%xmm1 \n" "paddusb %%xmm1,%%xmm0 \n" "movq %%xmm0,(%1) \n" "movhlps %%xmm0,%%xmm1 \n" "movd %%xmm1,0x8(%1) \n" "lea 0xc(%1),%1 \n" "sub $0xc,%2 \n" "jg 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width) // %2 : "m"(kShuf38a), // %3 "m"(kShuf38b) // %4 : "memory", "cc", "xmm0", "xmm1", "xmm4", "xmm5"); } void ScaleRowDown38_2_Box_SSSE3(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { asm volatile( "movdqa %0,%%xmm2 \n" "movdqa %1,%%xmm3 \n" "movdqa %2,%%xmm4 \n" "movdqa %3,%%xmm5 \n" : : "m"(kShufAb0), // %0 "m"(kShufAb1), // %1 "m"(kShufAb2), // %2 "m"(kScaleAb2) // %3 ); asm volatile( LABELALIGN "1: \n" "movdqu (%0),%%xmm0 \n" "movdqu 0x00(%0,%3,1),%%xmm1 \n" "lea 0x10(%0),%0 \n" "pavgb %%xmm1,%%xmm0 \n" "movdqa %%xmm0,%%xmm1 \n" "pshufb %%xmm2,%%xmm1 \n" "movdqa %%xmm0,%%xmm6 \n" "pshufb %%xmm3,%%xmm6 \n" "paddusw %%xmm6,%%xmm1 \n" "pshufb %%xmm4,%%xmm0 \n" "paddusw %%xmm0,%%xmm1 \n" "pmulhuw %%xmm5,%%xmm1 \n" "packuswb %%xmm1,%%xmm1 \n" "movd %%xmm1,(%1) \n" "psrlq $0x10,%%xmm1 \n" "movd %%xmm1,0x2(%1) \n" "lea 0x6(%1),%1 \n" "sub $0x6,%2 \n" "jg 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width) // %2 : "r"((intptr_t)(src_stride)) // %3 : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6"); } void ScaleRowDown38_3_Box_SSSE3(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { asm volatile( "movdqa %0,%%xmm2 \n" "movdqa %1,%%xmm3 \n" "movdqa %2,%%xmm4 \n" "pxor %%xmm5,%%xmm5 \n" : : "m"(kShufAc), // %0 "m"(kShufAc3), // %1 "m"(kScaleAc33) // %2 ); asm volatile( LABELALIGN "1: \n" "movdqu (%0),%%xmm0 \n" "movdqu 0x00(%0,%3,1),%%xmm6 \n" "movhlps %%xmm0,%%xmm1 \n" "movhlps %%xmm6,%%xmm7 \n" "punpcklbw %%xmm5,%%xmm0 \n" "punpcklbw %%xmm5,%%xmm1 \n" "punpcklbw %%xmm5,%%xmm6 \n" "punpcklbw %%xmm5,%%xmm7 \n" "paddusw %%xmm6,%%xmm0 \n" "paddusw %%xmm7,%%xmm1 \n" "movdqu 0x00(%0,%3,2),%%xmm6 \n" "lea 0x10(%0),%0 \n" "movhlps %%xmm6,%%xmm7 \n" "punpcklbw %%xmm5,%%xmm6 \n" "punpcklbw %%xmm5,%%xmm7 \n" "paddusw %%xmm6,%%xmm0 \n" "paddusw %%xmm7,%%xmm1 \n" "movdqa %%xmm0,%%xmm6 \n" "psrldq $0x2,%%xmm0 \n" "paddusw %%xmm0,%%xmm6 \n" "psrldq $0x2,%%xmm0 \n" "paddusw %%xmm0,%%xmm6 \n" "pshufb %%xmm2,%%xmm6 \n" "movdqa %%xmm1,%%xmm7 \n" "psrldq $0x2,%%xmm1 \n" "paddusw %%xmm1,%%xmm7 \n" "psrldq $0x2,%%xmm1 \n" "paddusw %%xmm1,%%xmm7 \n" "pshufb %%xmm3,%%xmm7 \n" "paddusw %%xmm7,%%xmm6 \n" "pmulhuw %%xmm4,%%xmm6 \n" "packuswb %%xmm6,%%xmm6 \n" "movd %%xmm6,(%1) \n" "psrlq $0x10,%%xmm6 \n" "movd %%xmm6,0x2(%1) \n" "lea 0x6(%1),%1 \n" "sub $0x6,%2 \n" "jg 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width) // %2 : "r"((intptr_t)(src_stride)) // %3 : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"); } // Reads 16xN bytes and produces 16 shorts at a time. void ScaleAddRow_SSE2(const uint8_t* src_ptr, uint16_t* dst_ptr, int src_width) { asm volatile( "pxor %%xmm5,%%xmm5 \n" // 16 pixel loop. LABELALIGN "1: \n" "movdqu (%0),%%xmm3 \n" "lea 0x10(%0),%0 \n" // src_ptr += 16 "movdqu (%1),%%xmm0 \n" "movdqu 0x10(%1),%%xmm1 \n" "movdqa %%xmm3,%%xmm2 \n" "punpcklbw %%xmm5,%%xmm2 \n" "punpckhbw %%xmm5,%%xmm3 \n" "paddusw %%xmm2,%%xmm0 \n" "paddusw %%xmm3,%%xmm1 \n" "movdqu %%xmm0,(%1) \n" "movdqu %%xmm1,0x10(%1) \n" "lea 0x20(%1),%1 \n" "sub $0x10,%2 \n" "jg 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(src_width) // %2 : : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"); } #ifdef HAS_SCALEADDROW_AVX2 // Reads 32 bytes and accumulates to 32 shorts at a time. void ScaleAddRow_AVX2(const uint8_t* src_ptr, uint16_t* dst_ptr, int src_width) { asm volatile( "vpxor %%ymm5,%%ymm5,%%ymm5 \n" LABELALIGN "1: \n" "vmovdqu (%0),%%ymm3 \n" "lea 0x20(%0),%0 \n" // src_ptr += 32 "vpermq $0xd8,%%ymm3,%%ymm3 \n" "vpunpcklbw %%ymm5,%%ymm3,%%ymm2 \n" "vpunpckhbw %%ymm5,%%ymm3,%%ymm3 \n" "vpaddusw (%1),%%ymm2,%%ymm0 \n" "vpaddusw 0x20(%1),%%ymm3,%%ymm1 \n" "vmovdqu %%ymm0,(%1) \n" "vmovdqu %%ymm1,0x20(%1) \n" "lea 0x40(%1),%1 \n" "sub $0x20,%2 \n" "jg 1b \n" "vzeroupper \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(src_width) // %2 : : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"); } #endif // HAS_SCALEADDROW_AVX2 // Constant for making pixels signed to avoid pmaddubsw // saturation. static const uvec8 kFsub80 = {0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80}; // Constant for making pixels unsigned and adding .5 for rounding. static const uvec16 kFadd40 = {0x4040, 0x4040, 0x4040, 0x4040, 0x4040, 0x4040, 0x4040, 0x4040}; // Bilinear column filtering. SSSE3 version. void ScaleFilterCols_SSSE3(uint8_t* dst_ptr, const uint8_t* src_ptr, int dst_width, int x, int dx) { intptr_t x0, x1, temp_pixel; asm volatile( "movd %6,%%xmm2 \n" "movd %7,%%xmm3 \n" "movl $0x04040000,%k2 \n" "movd %k2,%%xmm5 \n" "pcmpeqb %%xmm6,%%xmm6 \n" "psrlw $0x9,%%xmm6 \n" // 0x007f007f "pcmpeqb %%xmm7,%%xmm7 \n" "psrlw $15,%%xmm7 \n" // 0x00010001 "pextrw $0x1,%%xmm2,%k3 \n" "subl $0x2,%5 \n" "jl 29f \n" "movdqa %%xmm2,%%xmm0 \n" "paddd %%xmm3,%%xmm0 \n" "punpckldq %%xmm0,%%xmm2 \n" "punpckldq %%xmm3,%%xmm3 \n" "paddd %%xmm3,%%xmm3 \n" "pextrw $0x3,%%xmm2,%k4 \n" LABELALIGN "2: \n" "movdqa %%xmm2,%%xmm1 \n" "paddd %%xmm3,%%xmm2 \n" "movzwl 0x00(%1,%3,1),%k2 \n" "movd %k2,%%xmm0 \n" "psrlw $0x9,%%xmm1 \n" "movzwl 0x00(%1,%4,1),%k2 \n" "movd %k2,%%xmm4 \n" "pshufb %%xmm5,%%xmm1 \n" "punpcklwd %%xmm4,%%xmm0 \n" "psubb %8,%%xmm0 \n" // make pixels signed. "pxor %%xmm6,%%xmm1 \n" // 128 - f = (f ^ 127 ) + // 1 "paddusb %%xmm7,%%xmm1 \n" "pmaddubsw %%xmm0,%%xmm1 \n" "pextrw $0x1,%%xmm2,%k3 \n" "pextrw $0x3,%%xmm2,%k4 \n" "paddw %9,%%xmm1 \n" // make pixels unsigned. "psrlw $0x7,%%xmm1 \n" "packuswb %%xmm1,%%xmm1 \n" "movd %%xmm1,%k2 \n" "mov %w2,(%0) \n" "lea 0x2(%0),%0 \n" "subl $0x2,%5 \n" "jge 2b \n" LABELALIGN "29: \n" "addl $0x1,%5 \n" "jl 99f \n" "movzwl 0x00(%1,%3,1),%k2 \n" "movd %k2,%%xmm0 \n" "psrlw $0x9,%%xmm2 \n" "pshufb %%xmm5,%%xmm2 \n" "psubb %8,%%xmm0 \n" // make pixels signed. "pxor %%xmm6,%%xmm2 \n" "paddusb %%xmm7,%%xmm2 \n" "pmaddubsw %%xmm0,%%xmm2 \n" "paddw %9,%%xmm2 \n" // make pixels unsigned. "psrlw $0x7,%%xmm2 \n" "packuswb %%xmm2,%%xmm2 \n" "movd %%xmm2,%k2 \n" "mov %b2,(%0) \n" "99: \n" : "+r"(dst_ptr), // %0 "+r"(src_ptr), // %1 "=&a"(temp_pixel), // %2 "=&r"(x0), // %3 "=&r"(x1), // %4 #if defined(__x86_64__) "+rm"(dst_width) // %5 #else "+m"(dst_width) // %5 #endif : "rm"(x), // %6 "rm"(dx), // %7 #if defined(__x86_64__) "x"(kFsub80), // %8 "x"(kFadd40) // %9 #else "m"(kFsub80), // %8 "m"(kFadd40) // %9 #endif : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"); } // Reads 4 pixels, duplicates them and writes 8 pixels. // Alignment requirement: src_argb 16 byte aligned, dst_argb 16 byte aligned. void ScaleColsUp2_SSE2(uint8_t* dst_ptr, const uint8_t* src_ptr, int dst_width, int x, int dx) { (void)x; (void)dx; asm volatile( LABELALIGN "1: \n" "movdqu (%1),%%xmm0 \n" "lea 0x10(%1),%1 \n" "movdqa %%xmm0,%%xmm1 \n" "punpcklbw %%xmm0,%%xmm0 \n" "punpckhbw %%xmm1,%%xmm1 \n" "movdqu %%xmm0,(%0) \n" "movdqu %%xmm1,0x10(%0) \n" "lea 0x20(%0),%0 \n" "sub $0x20,%2 \n" "jg 1b \n" : "+r"(dst_ptr), // %0 "+r"(src_ptr), // %1 "+r"(dst_width) // %2 ::"memory", "cc", "xmm0", "xmm1"); } void ScaleARGBRowDown2_SSE2(const uint8_t* src_argb, ptrdiff_t src_stride, uint8_t* dst_argb, int dst_width) { (void)src_stride; asm volatile( LABELALIGN "1: \n" "movdqu (%0),%%xmm0 \n" "movdqu 0x10(%0),%%xmm1 \n" "lea 0x20(%0),%0 \n" "shufps $0xdd,%%xmm1,%%xmm0 \n" "movdqu %%xmm0,(%1) \n" "lea 0x10(%1),%1 \n" "sub $0x4,%2 \n" "jg 1b \n" : "+r"(src_argb), // %0 "+r"(dst_argb), // %1 "+r"(dst_width) // %2 ::"memory", "cc", "xmm0", "xmm1"); } void ScaleARGBRowDown2Linear_SSE2(const uint8_t* src_argb, ptrdiff_t src_stride, uint8_t* dst_argb, int dst_width) { (void)src_stride; asm volatile( LABELALIGN "1: \n" "movdqu (%0),%%xmm0 \n" "movdqu 0x10(%0),%%xmm1 \n" "lea 0x20(%0),%0 \n" "movdqa %%xmm0,%%xmm2 \n" "shufps $0x88,%%xmm1,%%xmm0 \n" "shufps $0xdd,%%xmm1,%%xmm2 \n" "pavgb %%xmm2,%%xmm0 \n" "movdqu %%xmm0,(%1) \n" "lea 0x10(%1),%1 \n" "sub $0x4,%2 \n" "jg 1b \n" : "+r"(src_argb), // %0 "+r"(dst_argb), // %1 "+r"(dst_width) // %2 ::"memory", "cc", "xmm0", "xmm1"); } void ScaleARGBRowDown2Box_SSE2(const uint8_t* src_argb, ptrdiff_t src_stride, uint8_t* dst_argb, int dst_width) { asm volatile( LABELALIGN "1: \n" "movdqu (%0),%%xmm0 \n" "movdqu 0x10(%0),%%xmm1 \n" "movdqu 0x00(%0,%3,1),%%xmm2 \n" "movdqu 0x10(%0,%3,1),%%xmm3 \n" "lea 0x20(%0),%0 \n" "pavgb %%xmm2,%%xmm0 \n" "pavgb %%xmm3,%%xmm1 \n" "movdqa %%xmm0,%%xmm2 \n" "shufps $0x88,%%xmm1,%%xmm0 \n" "shufps $0xdd,%%xmm1,%%xmm2 \n" "pavgb %%xmm2,%%xmm0 \n" "movdqu %%xmm0,(%1) \n" "lea 0x10(%1),%1 \n" "sub $0x4,%2 \n" "jg 1b \n" : "+r"(src_argb), // %0 "+r"(dst_argb), // %1 "+r"(dst_width) // %2 : "r"((intptr_t)(src_stride)) // %3 : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3"); } // Reads 4 pixels at a time. // Alignment requirement: dst_argb 16 byte aligned. void ScaleARGBRowDownEven_SSE2(const uint8_t* src_argb, ptrdiff_t src_stride, int src_stepx, uint8_t* dst_argb, int dst_width) { intptr_t src_stepx_x4 = (intptr_t)(src_stepx); intptr_t src_stepx_x12; (void)src_stride; asm volatile( "lea 0x00(,%1,4),%1 \n" "lea 0x00(%1,%1,2),%4 \n" LABELALIGN "1: \n" "movd (%0),%%xmm0 \n" "movd 0x00(%0,%1,1),%%xmm1 \n" "punpckldq %%xmm1,%%xmm0 \n" "movd 0x00(%0,%1,2),%%xmm2 \n" "movd 0x00(%0,%4,1),%%xmm3 \n" "lea 0x00(%0,%1,4),%0 \n" "punpckldq %%xmm3,%%xmm2 \n" "punpcklqdq %%xmm2,%%xmm0 \n" "movdqu %%xmm0,(%2) \n" "lea 0x10(%2),%2 \n" "sub $0x4,%3 \n" "jg 1b \n" : "+r"(src_argb), // %0 "+r"(src_stepx_x4), // %1 "+r"(dst_argb), // %2 "+r"(dst_width), // %3 "=&r"(src_stepx_x12) // %4 ::"memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3"); } // Blends four 2x2 to 4x1. // Alignment requirement: dst_argb 16 byte aligned. void ScaleARGBRowDownEvenBox_SSE2(const uint8_t* src_argb, ptrdiff_t src_stride, int src_stepx, uint8_t* dst_argb, int dst_width) { intptr_t src_stepx_x4 = (intptr_t)(src_stepx); intptr_t src_stepx_x12; intptr_t row1 = (intptr_t)(src_stride); asm volatile( "lea 0x00(,%1,4),%1 \n" "lea 0x00(%1,%1,2),%4 \n" "lea 0x00(%0,%5,1),%5 \n" LABELALIGN "1: \n" "movq (%0),%%xmm0 \n" "movhps 0x00(%0,%1,1),%%xmm0 \n" "movq 0x00(%0,%1,2),%%xmm1 \n" "movhps 0x00(%0,%4,1),%%xmm1 \n" "lea 0x00(%0,%1,4),%0 \n" "movq (%5),%%xmm2 \n" "movhps 0x00(%5,%1,1),%%xmm2 \n" "movq 0x00(%5,%1,2),%%xmm3 \n" "movhps 0x00(%5,%4,1),%%xmm3 \n" "lea 0x00(%5,%1,4),%5 \n" "pavgb %%xmm2,%%xmm0 \n" "pavgb %%xmm3,%%xmm1 \n" "movdqa %%xmm0,%%xmm2 \n" "shufps $0x88,%%xmm1,%%xmm0 \n" "shufps $0xdd,%%xmm1,%%xmm2 \n" "pavgb %%xmm2,%%xmm0 \n" "movdqu %%xmm0,(%2) \n" "lea 0x10(%2),%2 \n" "sub $0x4,%3 \n" "jg 1b \n" : "+r"(src_argb), // %0 "+r"(src_stepx_x4), // %1 "+r"(dst_argb), // %2 "+rm"(dst_width), // %3 "=&r"(src_stepx_x12), // %4 "+r"(row1) // %5 ::"memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3"); } void ScaleARGBCols_SSE2(uint8_t* dst_argb, const uint8_t* src_argb, int dst_width, int x, int dx) { intptr_t x0, x1; asm volatile( "movd %5,%%xmm2 \n" "movd %6,%%xmm3 \n" "pshufd $0x0,%%xmm2,%%xmm2 \n" "pshufd $0x11,%%xmm3,%%xmm0 \n" "paddd %%xmm0,%%xmm2 \n" "paddd %%xmm3,%%xmm3 \n" "pshufd $0x5,%%xmm3,%%xmm0 \n" "paddd %%xmm0,%%xmm2 \n" "paddd %%xmm3,%%xmm3 \n" "pshufd $0x0,%%xmm3,%%xmm3 \n" "pextrw $0x1,%%xmm2,%k0 \n" "pextrw $0x3,%%xmm2,%k1 \n" "cmp $0x0,%4 \n" "jl 99f \n" "sub $0x4,%4 \n" "jl 49f \n" LABELALIGN "40: \n" "movd 0x00(%3,%0,4),%%xmm0 \n" "movd 0x00(%3,%1,4),%%xmm1 \n" "pextrw $0x5,%%xmm2,%k0 \n" "pextrw $0x7,%%xmm2,%k1 \n" "paddd %%xmm3,%%xmm2 \n" "punpckldq %%xmm1,%%xmm0 \n" "movd 0x00(%3,%0,4),%%xmm1 \n" "movd 0x00(%3,%1,4),%%xmm4 \n" "pextrw $0x1,%%xmm2,%k0 \n" "pextrw $0x3,%%xmm2,%k1 \n" "punpckldq %%xmm4,%%xmm1 \n" "punpcklqdq %%xmm1,%%xmm0 \n" "movdqu %%xmm0,(%2) \n" "lea 0x10(%2),%2 \n" "sub $0x4,%4 \n" "jge 40b \n" "49: \n" "test $0x2,%4 \n" "je 29f \n" "movd 0x00(%3,%0,4),%%xmm0 \n" "movd 0x00(%3,%1,4),%%xmm1 \n" "pextrw $0x5,%%xmm2,%k0 \n" "punpckldq %%xmm1,%%xmm0 \n" "movq %%xmm0,(%2) \n" "lea 0x8(%2),%2 \n" "29: \n" "test $0x1,%4 \n" "je 99f \n" "movd 0x00(%3,%0,4),%%xmm0 \n" "movd %%xmm0,(%2) \n" "99: \n" : "=&a"(x0), // %0 "=&d"(x1), // %1 "+r"(dst_argb), // %2 "+r"(src_argb), // %3 "+r"(dst_width) // %4 : "rm"(x), // %5 "rm"(dx) // %6 : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4"); } // Reads 4 pixels, duplicates them and writes 8 pixels. // Alignment requirement: src_argb 16 byte aligned, dst_argb 16 byte aligned. void ScaleARGBColsUp2_SSE2(uint8_t* dst_argb, const uint8_t* src_argb, int dst_width, int x, int dx) { (void)x; (void)dx; asm volatile( LABELALIGN "1: \n" "movdqu (%1),%%xmm0 \n" "lea 0x10(%1),%1 \n" "movdqa %%xmm0,%%xmm1 \n" "punpckldq %%xmm0,%%xmm0 \n" "punpckhdq %%xmm1,%%xmm1 \n" "movdqu %%xmm0,(%0) \n" "movdqu %%xmm1,0x10(%0) \n" "lea 0x20(%0),%0 \n" "sub $0x8,%2 \n" "jg 1b \n" : "+r"(dst_argb), // %0 "+r"(src_argb), // %1 "+r"(dst_width) // %2 ::"memory", "cc", "xmm0", "xmm1"); } // Shuffle table for arranging 2 pixels into pairs for pmaddubsw static const uvec8 kShuffleColARGB = { 0u, 4u, 1u, 5u, 2u, 6u, 3u, 7u, // bbggrraa 1st pixel 8u, 12u, 9u, 13u, 10u, 14u, 11u, 15u // bbggrraa 2nd pixel }; // Shuffle table for duplicating 2 fractions into 8 bytes each static const uvec8 kShuffleFractions = { 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 4u, 4u, 4u, 4u, 4u, 4u, 4u, 4u, }; // Bilinear row filtering combines 4x2 -> 4x1. SSSE3 version void ScaleARGBFilterCols_SSSE3(uint8_t* dst_argb, const uint8_t* src_argb, int dst_width, int x, int dx) { intptr_t x0, x1; asm volatile( "movdqa %0,%%xmm4 \n" "movdqa %1,%%xmm5 \n" : : "m"(kShuffleColARGB), // %0 "m"(kShuffleFractions) // %1 ); asm volatile( "movd %5,%%xmm2 \n" "movd %6,%%xmm3 \n" "pcmpeqb %%xmm6,%%xmm6 \n" "psrlw $0x9,%%xmm6 \n" "pextrw $0x1,%%xmm2,%k3 \n" "sub $0x2,%2 \n" "jl 29f \n" "movdqa %%xmm2,%%xmm0 \n" "paddd %%xmm3,%%xmm0 \n" "punpckldq %%xmm0,%%xmm2 \n" "punpckldq %%xmm3,%%xmm3 \n" "paddd %%xmm3,%%xmm3 \n" "pextrw $0x3,%%xmm2,%k4 \n" LABELALIGN "2: \n" "movdqa %%xmm2,%%xmm1 \n" "paddd %%xmm3,%%xmm2 \n" "movq 0x00(%1,%3,4),%%xmm0 \n" "psrlw $0x9,%%xmm1 \n" "movhps 0x00(%1,%4,4),%%xmm0 \n" "pshufb %%xmm5,%%xmm1 \n" "pshufb %%xmm4,%%xmm0 \n" "pxor %%xmm6,%%xmm1 \n" "pmaddubsw %%xmm1,%%xmm0 \n" "psrlw $0x7,%%xmm0 \n" "pextrw $0x1,%%xmm2,%k3 \n" "pextrw $0x3,%%xmm2,%k4 \n" "packuswb %%xmm0,%%xmm0 \n" "movq %%xmm0,(%0) \n" "lea 0x8(%0),%0 \n" "sub $0x2,%2 \n" "jge 2b \n" LABELALIGN "29: \n" "add $0x1,%2 \n" "jl 99f \n" "psrlw $0x9,%%xmm2 \n" "movq 0x00(%1,%3,4),%%xmm0 \n" "pshufb %%xmm5,%%xmm2 \n" "pshufb %%xmm4,%%xmm0 \n" "pxor %%xmm6,%%xmm2 \n" "pmaddubsw %%xmm2,%%xmm0 \n" "psrlw $0x7,%%xmm0 \n" "packuswb %%xmm0,%%xmm0 \n" "movd %%xmm0,(%0) \n" LABELALIGN "99: \n" // clang-format error. : "+r"(dst_argb), // %0 "+r"(src_argb), // %1 "+rm"(dst_width), // %2 "=&r"(x0), // %3 "=&r"(x1) // %4 : "rm"(x), // %5 "rm"(dx) // %6 : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6"); } // Divide num by div and return as 16.16 fixed point result. int FixedDiv_X86(int num, int div) { asm volatile( "cdq \n" "shld $0x10,%%eax,%%edx \n" "shl $0x10,%%eax \n" "idiv %1 \n" "mov %0, %%eax \n" : "+a"(num) // %0 : "c"(div) // %1 : "memory", "cc", "edx"); return num; } // Divide num - 1 by div - 1 and return as 16.16 fixed point result. int FixedDiv1_X86(int num, int div) { asm volatile( "cdq \n" "shld $0x10,%%eax,%%edx \n" "shl $0x10,%%eax \n" "sub $0x10001,%%eax \n" "sbb $0x0,%%edx \n" "sub $0x1,%1 \n" "idiv %1 \n" "mov %0, %%eax \n" : "+a"(num) // %0 : "c"(div) // %1 : "memory", "cc", "edx"); return num; } #ifdef HAS_SCALEUVROWDOWN2BOX_SSSE3 // Shuffle table for splitting UV into upper and lower part of register. static const uvec8 kShuffleSplitUV = {0u, 2u, 4u, 6u, 8u, 10u, 12u, 14u, 1u, 3u, 5u, 7u, 9u, 11u, 13u, 15u}; static const uvec8 kShuffleMergeUV = {0u, 8u, 2u, 10u, 4u, 12u, 6u, 14u, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80}; void ScaleUVRowDown2Box_SSSE3(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { asm volatile( "pcmpeqb %%xmm4,%%xmm4 \n" // 01010101 "psrlw $0xf,%%xmm4 \n" "packuswb %%xmm4,%%xmm4 \n" "pxor %%xmm5, %%xmm5 \n" // zero "movdqa %4,%%xmm1 \n" // split shuffler "movdqa %5,%%xmm3 \n" // merge shuffler LABELALIGN "1: \n" "movdqu (%0),%%xmm0 \n" // 8 UV row 0 "movdqu 0x00(%0,%3,1),%%xmm2 \n" // 8 UV row 1 "lea 0x10(%0),%0 \n" "pshufb %%xmm1,%%xmm0 \n" // uuuuvvvv "pshufb %%xmm1,%%xmm2 \n" "pmaddubsw %%xmm4,%%xmm0 \n" // horizontal add "pmaddubsw %%xmm4,%%xmm2 \n" "paddw %%xmm2,%%xmm0 \n" // vertical add "psrlw $0x1,%%xmm0 \n" // round "pavgw %%xmm5,%%xmm0 \n" "pshufb %%xmm3,%%xmm0 \n" // merge uv "movq %%xmm0,(%1) \n" "lea 0x8(%1),%1 \n" // 4 UV "sub $0x4,%2 \n" "jg 1b \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width) // %2 : "r"((intptr_t)(src_stride)), // %3 "m"(kShuffleSplitUV), // %4 "m"(kShuffleMergeUV) // %5 : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"); } #endif // HAS_SCALEUVROWDOWN2BOX_SSSE3 #ifdef HAS_SCALEUVROWDOWN2BOX_AVX2 void ScaleUVRowDown2Box_AVX2(const uint8_t* src_ptr, ptrdiff_t src_stride, uint8_t* dst_ptr, int dst_width) { asm volatile( "vpcmpeqb %%ymm4,%%ymm4,%%ymm4 \n" // 01010101 "vpsrlw $0xf,%%ymm4,%%ymm4 \n" "vpackuswb %%ymm4,%%ymm4,%%ymm4 \n" "vpxor %%ymm5,%%ymm5,%%ymm5 \n" // zero "vbroadcastf128 %4,%%ymm1 \n" // split shuffler "vbroadcastf128 %5,%%ymm3 \n" // merge shuffler LABELALIGN "1: \n" "vmovdqu (%0),%%ymm0 \n" // 16 UV row 0 "vmovdqu 0x00(%0,%3,1),%%ymm2 \n" // 16 UV row 1 "lea 0x20(%0),%0 \n" "vpshufb %%ymm1,%%ymm0,%%ymm0 \n" // uuuuvvvv "vpshufb %%ymm1,%%ymm2,%%ymm2 \n" "vpmaddubsw %%ymm4,%%ymm0,%%ymm0 \n" // horizontal add "vpmaddubsw %%ymm4,%%ymm2,%%ymm2 \n" "vpaddw %%ymm2,%%ymm0,%%ymm0 \n" // vertical add "vpsrlw $0x1,%%ymm0,%%ymm0 \n" // round "vpavgw %%ymm5,%%ymm0,%%ymm0 \n" "vpshufb %%ymm3,%%ymm0,%%ymm0 \n" // merge uv "vpermq $0xd8,%%ymm0,%%ymm0 \n" // combine qwords "vmovdqu %%xmm0,(%1) \n" "lea 0x10(%1),%1 \n" // 8 UV "sub $0x8,%2 \n" "jg 1b \n" "vzeroupper \n" : "+r"(src_ptr), // %0 "+r"(dst_ptr), // %1 "+r"(dst_width) // %2 : "r"((intptr_t)(src_stride)), // %3 "m"(kShuffleSplitUV), // %4 "m"(kShuffleMergeUV) // %5 : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"); } #endif // HAS_SCALEUVROWDOWN2BOX_AVX2 #endif // defined(__x86_64__) || defined(__i386__) #ifdef __cplusplus } // extern "C" } // namespace libyuv #endif