ref: ad43a73883b2e18e07fc30f82486e83bf1746cdb
dir: /third_party/libyuv/source/compare_gcc.cc/
/* * Copyright 2012 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/basic_types.h" #include "libyuv/row.h" #ifdef __cplusplus namespace libyuv { extern "C" { #endif #if !defined(LIBYUV_DISABLE_X86) && (defined(__x86_64__) || defined(__i386__)) uint32 SumSquareError_SSE2(const uint8* src_a, const uint8* src_b, int count) { uint32 sse; asm volatile ( // NOLINT "pxor %%xmm0,%%xmm0 \n" "pxor %%xmm5,%%xmm5 \n" LABELALIGN "1: \n" "movdqu " MEMACCESS(0) ",%%xmm1 \n" "lea " MEMLEA(0x10, 0) ",%0 \n" "movdqu " MEMACCESS(1) ",%%xmm2 \n" "lea " MEMLEA(0x10, 1) ",%1 \n" "movdqa %%xmm1,%%xmm3 \n" "psubusb %%xmm2,%%xmm1 \n" "psubusb %%xmm3,%%xmm2 \n" "por %%xmm2,%%xmm1 \n" "movdqa %%xmm1,%%xmm2 \n" "punpcklbw %%xmm5,%%xmm1 \n" "punpckhbw %%xmm5,%%xmm2 \n" "pmaddwd %%xmm1,%%xmm1 \n" "pmaddwd %%xmm2,%%xmm2 \n" "paddd %%xmm1,%%xmm0 \n" "paddd %%xmm2,%%xmm0 \n" "sub $0x10,%2 \n" "jg 1b \n" "pshufd $0xee,%%xmm0,%%xmm1 \n" "paddd %%xmm1,%%xmm0 \n" "pshufd $0x1,%%xmm0,%%xmm1 \n" "paddd %%xmm1,%%xmm0 \n" "movd %%xmm0,%3 \n" : "+r"(src_a), // %0 "+r"(src_b), // %1 "+r"(count), // %2 "=g"(sse) // %3 :: "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5" ); // NOLINT return sse; } #endif // defined(__x86_64__) || defined(__i386__) #if !defined(LIBYUV_DISABLE_X86) && \ (defined(__x86_64__) || (defined(__i386__) && !defined(__pic__))) #define HAS_HASHDJB2_SSE41 static uvec32 kHash16x33 = { 0x92d9e201, 0, 0, 0 }; // 33 ^ 16 static uvec32 kHashMul0 = { 0x0c3525e1, // 33 ^ 15 0xa3476dc1, // 33 ^ 14 0x3b4039a1, // 33 ^ 13 0x4f5f0981, // 33 ^ 12 }; static uvec32 kHashMul1 = { 0x30f35d61, // 33 ^ 11 0x855cb541, // 33 ^ 10 0x040a9121, // 33 ^ 9 0x747c7101, // 33 ^ 8 }; static uvec32 kHashMul2 = { 0xec41d4e1, // 33 ^ 7 0x4cfa3cc1, // 33 ^ 6 0x025528a1, // 33 ^ 5 0x00121881, // 33 ^ 4 }; static uvec32 kHashMul3 = { 0x00008c61, // 33 ^ 3 0x00000441, // 33 ^ 2 0x00000021, // 33 ^ 1 0x00000001, // 33 ^ 0 }; uint32 HashDjb2_SSE41(const uint8* src, int count, uint32 seed) { uint32 hash; asm volatile ( // NOLINT "movd %2,%%xmm0 \n" "pxor %%xmm7,%%xmm7 \n" "movdqa %4,%%xmm6 \n" LABELALIGN "1: \n" "movdqu " MEMACCESS(0) ",%%xmm1 \n" "lea " MEMLEA(0x10, 0) ",%0 \n" "pmulld %%xmm6,%%xmm0 \n" "movdqa %5,%%xmm5 \n" "movdqa %%xmm1,%%xmm2 \n" "punpcklbw %%xmm7,%%xmm2 \n" "movdqa %%xmm2,%%xmm3 \n" "punpcklwd %%xmm7,%%xmm3 \n" "pmulld %%xmm5,%%xmm3 \n" "movdqa %6,%%xmm5 \n" "movdqa %%xmm2,%%xmm4 \n" "punpckhwd %%xmm7,%%xmm4 \n" "pmulld %%xmm5,%%xmm4 \n" "movdqa %7,%%xmm5 \n" "punpckhbw %%xmm7,%%xmm1 \n" "movdqa %%xmm1,%%xmm2 \n" "punpcklwd %%xmm7,%%xmm2 \n" "pmulld %%xmm5,%%xmm2 \n" "movdqa %8,%%xmm5 \n" "punpckhwd %%xmm7,%%xmm1 \n" "pmulld %%xmm5,%%xmm1 \n" "paddd %%xmm4,%%xmm3 \n" "paddd %%xmm2,%%xmm1 \n" "paddd %%xmm3,%%xmm1 \n" "pshufd $0xe,%%xmm1,%%xmm2 \n" "paddd %%xmm2,%%xmm1 \n" "pshufd $0x1,%%xmm1,%%xmm2 \n" "paddd %%xmm2,%%xmm1 \n" "paddd %%xmm1,%%xmm0 \n" "sub $0x10,%1 \n" "jg 1b \n" "movd %%xmm0,%3 \n" : "+r"(src), // %0 "+r"(count), // %1 "+rm"(seed), // %2 "=g"(hash) // %3 : "m"(kHash16x33), // %4 "m"(kHashMul0), // %5 "m"(kHashMul1), // %6 "m"(kHashMul2), // %7 "m"(kHashMul3) // %8 : "memory", "cc" , "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7" ); // NOLINT return hash; } #endif // defined(__x86_64__) || (defined(__i386__) && !defined(__pic__))) #ifdef __cplusplus } // extern "C" } // namespace libyuv #endif