| /* |
| * 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 |
| |
