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Diffstat (limited to 'files/source/compare_mmi.cc')
| -rw-r--r-- | files/source/compare_mmi.cc | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/files/source/compare_mmi.cc b/files/source/compare_mmi.cc deleted file mode 100644 index 7640d946..00000000 --- a/files/source/compare_mmi.cc +++ /dev/null @@ -1,123 +0,0 @@ -/* - * 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/compare_row.h" - -#ifdef __cplusplus -namespace libyuv { -extern "C" { -#endif - -// This module is for Mips MMI. -#if !defined(LIBYUV_DISABLE_MMI) && defined(_MIPS_ARCH_LOONGSON3A) - -// Hakmem method for hamming distance. -uint32_t HammingDistance_MMI(const uint8_t* src_a, - const uint8_t* src_b, - int count) { - uint32_t diff = 0u; - - uint64_t temp = 0, temp1 = 0, ta = 0, tb = 0; - uint64_t c1 = 0x5555555555555555; - uint64_t c2 = 0x3333333333333333; - uint64_t c3 = 0x0f0f0f0f0f0f0f0f; - uint32_t c4 = 0x01010101; - uint64_t s1 = 1, s2 = 2, s3 = 4; - __asm__ volatile( - "1: \n\t" - "ldc1 %[ta], 0(%[src_a]) \n\t" - "ldc1 %[tb], 0(%[src_b]) \n\t" - "xor %[temp], %[ta], %[tb] \n\t" - "psrlw %[temp1], %[temp], %[s1] \n\t" // temp1=x>>1 - "and %[temp1], %[temp1], %[c1] \n\t" // temp1&=c1 - "psubw %[temp1], %[temp], %[temp1] \n\t" // x-temp1 - "and %[temp], %[temp1], %[c2] \n\t" // t = (u&c2) - "psrlw %[temp1], %[temp1], %[s2] \n\t" // u>>2 - "and %[temp1], %[temp1], %[c2] \n\t" // u>>2 & c2 - "paddw %[temp1], %[temp1], %[temp] \n\t" // t1 = t1+t - "psrlw %[temp], %[temp1], %[s3] \n\t" // u>>4 - "paddw %[temp1], %[temp1], %[temp] \n\t" // u+(u>>4) - "and %[temp1], %[temp1], %[c3] \n\t" //&c3 - "dmfc1 $t0, %[temp1] \n\t" - "dsrl32 $t0, $t0, 0 \n\t " - "mul $t0, $t0, %[c4] \n\t" - "dsrl $t0, $t0, 24 \n\t" - "dadd %[diff], %[diff], $t0 \n\t" - "dmfc1 $t0, %[temp1] \n\t" - "mul $t0, $t0, %[c4] \n\t" - "dsrl $t0, $t0, 24 \n\t" - "dadd %[diff], %[diff], $t0 \n\t" - "daddiu %[src_a], %[src_a], 8 \n\t" - "daddiu %[src_b], %[src_b], 8 \n\t" - "addiu %[count], %[count], -8 \n\t" - "bgtz %[count], 1b \n\t" - "nop \n\t" - : [diff] "+r"(diff), [src_a] "+r"(src_a), [src_b] "+r"(src_b), - [count] "+r"(count), [ta] "+f"(ta), [tb] "+f"(tb), [temp] "+f"(temp), - [temp1] "+f"(temp1) - : [c1] "f"(c1), [c2] "f"(c2), [c3] "f"(c3), [c4] "r"(c4), [s1] "f"(s1), - [s2] "f"(s2), [s3] "f"(s3) - : "memory"); - return diff; -} - -uint32_t SumSquareError_MMI(const uint8_t* src_a, - const uint8_t* src_b, - int count) { - uint32_t sse = 0u; - uint32_t sse_hi = 0u, sse_lo = 0u; - - uint64_t src1, src2; - uint64_t diff, diff_hi, diff_lo; - uint64_t sse_sum, sse_tmp; - - const uint64_t mask = 0x0ULL; - - __asm__ volatile( - "xor %[sse_sum], %[sse_sum], %[sse_sum] \n\t" - - "1: \n\t" - "ldc1 %[src1], 0x00(%[src_a]) \n\t" - "ldc1 %[src2], 0x00(%[src_b]) \n\t" - "pasubub %[diff], %[src1], %[src2] \n\t" - "punpcklbh %[diff_lo], %[diff], %[mask] \n\t" - "punpckhbh %[diff_hi], %[diff], %[mask] \n\t" - "pmaddhw %[sse_tmp], %[diff_lo], %[diff_lo] \n\t" - "paddw %[sse_sum], %[sse_sum], %[sse_tmp] \n\t" - "pmaddhw %[sse_tmp], %[diff_hi], %[diff_hi] \n\t" - "paddw %[sse_sum], %[sse_sum], %[sse_tmp] \n\t" - - "daddiu %[src_a], %[src_a], 0x08 \n\t" - "daddiu %[src_b], %[src_b], 0x08 \n\t" - "daddiu %[count], %[count], -0x08 \n\t" - "bnez %[count], 1b \n\t" - - "mfc1 %[sse_lo], %[sse_sum] \n\t" - "mfhc1 %[sse_hi], %[sse_sum] \n\t" - "daddu %[sse], %[sse_hi], %[sse_lo] \n\t" - : [sse] "+&r"(sse), [diff] "=&f"(diff), [src1] "=&f"(src1), - [src2] "=&f"(src2), [diff_lo] "=&f"(diff_lo), [diff_hi] "=&f"(diff_hi), - [sse_sum] "=&f"(sse_sum), [sse_tmp] "=&f"(sse_tmp), - [sse_hi] "+&r"(sse_hi), [sse_lo] "+&r"(sse_lo) - : [src_a] "r"(src_a), [src_b] "r"(src_b), [count] "r"(count), - [mask] "f"(mask) - : "memory"); - - return sse; -} - -#endif // !defined(LIBYUV_DISABLE_MMI) && defined(_MIPS_ARCH_LOONGSON3A) - -#ifdef __cplusplus -} // extern "C" -} // namespace libyuv -#endif |