From 678702573531f19ae36847a6a07257aaae623fbe Mon Sep 17 00:00:00 2001 From: Sadaf Ebrahimi Date: Fri, 25 Aug 2023 16:27:50 +0000 Subject: Move libyuv/files/ directly under libyuv Test: TreeHugger Merged-In: I773d1ae01539cc5d200768b526f10b2922567f72 Change-Id: I4ba1f1e781d7fd3ad96639dfdc08f654e45ae3d3 --- util/psnr.cc | 291 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 291 insertions(+) create mode 100644 util/psnr.cc (limited to 'util/psnr.cc') diff --git a/util/psnr.cc b/util/psnr.cc new file mode 100644 index 00000000..c7bee7f9 --- /dev/null +++ b/util/psnr.cc @@ -0,0 +1,291 @@ +/* + * 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 "./psnr.h" // NOLINT + +#ifdef _OPENMP +#include +#endif +#ifdef _MSC_VER +#include // For __cpuid() +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +typedef unsigned int uint32_t; // NOLINT +#ifdef _MSC_VER +typedef unsigned __int64 uint64_t; +#else // COMPILER_MSVC +#if defined(__LP64__) && !defined(__OpenBSD__) && !defined(__APPLE__) +typedef unsigned long uint64_t; // NOLINT +#else // defined(__LP64__) && !defined(__OpenBSD__) && !defined(__APPLE__) +typedef unsigned long long uint64_t; // NOLINT +#endif // __LP64__ +#endif // _MSC_VER + +// libyuv provides this function when linking library for jpeg support. +#if !defined(HAVE_JPEG) + +#if !defined(LIBYUV_DISABLE_NEON) && defined(__ARM_NEON__) && \ + !defined(__aarch64__) +#define HAS_SUMSQUAREERROR_NEON +static uint32_t SumSquareError_NEON(const uint8_t* src_a, + const uint8_t* src_b, + int count) { + volatile uint32_t sse; + asm volatile( + "vmov.u8 q7, #0 \n" + "vmov.u8 q9, #0 \n" + "vmov.u8 q8, #0 \n" + "vmov.u8 q10, #0 \n" + + "1: \n" + "vld1.u8 {q0}, [%0]! \n" + "vld1.u8 {q1}, [%1]! \n" + "vsubl.u8 q2, d0, d2 \n" + "vsubl.u8 q3, d1, d3 \n" + "vmlal.s16 q7, d4, d4 \n" + "vmlal.s16 q8, d6, d6 \n" + "vmlal.s16 q8, d5, d5 \n" + "vmlal.s16 q10, d7, d7 \n" + "subs %2, %2, #16 \n" + "bhi 1b \n" + + "vadd.u32 q7, q7, q8 \n" + "vadd.u32 q9, q9, q10 \n" + "vadd.u32 q10, q7, q9 \n" + "vpaddl.u32 q1, q10 \n" + "vadd.u64 d0, d2, d3 \n" + "vmov.32 %3, d0[0] \n" + : "+r"(src_a), "+r"(src_b), "+r"(count), "=r"(sse) + : + : "memory", "cc", "q0", "q1", "q2", "q3", "q7", "q8", "q9", "q10"); + return sse; +} +#elif !defined(LIBYUV_DISABLE_NEON) && defined(__aarch64__) +#define HAS_SUMSQUAREERROR_NEON +static uint32_t SumSquareError_NEON(const uint8_t* src_a, + const uint8_t* src_b, + int count) { + volatile uint32_t sse; + asm volatile( + "eor v16.16b, v16.16b, v16.16b \n" + "eor v18.16b, v18.16b, v18.16b \n" + "eor v17.16b, v17.16b, v17.16b \n" + "eor v19.16b, v19.16b, v19.16b \n" + + "1: \n" + "ld1 {v0.16b}, [%0], #16 \n" + "ld1 {v1.16b}, [%1], #16 \n" + "subs %w2, %w2, #16 \n" + "usubl v2.8h, v0.8b, v1.8b \n" + "usubl2 v3.8h, v0.16b, v1.16b \n" + "smlal v16.4s, v2.4h, v2.4h \n" + "smlal v17.4s, v3.4h, v3.4h \n" + "smlal2 v18.4s, v2.8h, v2.8h \n" + "smlal2 v19.4s, v3.8h, v3.8h \n" + "b.gt 1b \n" + + "add v16.4s, v16.4s, v17.4s \n" + "add v18.4s, v18.4s, v19.4s \n" + "add v19.4s, v16.4s, v18.4s \n" + "addv s0, v19.4s \n" + "fmov %w3, s0 \n" + : "+r"(src_a), "+r"(src_b), "+r"(count), "=r"(sse) + : + : "cc", "v0", "v1", "v2", "v3", "v16", "v17", "v18", "v19"); + return sse; +} +#elif !defined(LIBYUV_DISABLE_X86) && defined(_M_IX86) && defined(_MSC_VER) +#define HAS_SUMSQUAREERROR_SSE2 +__declspec(naked) static uint32_t SumSquareError_SSE2(const uint8_t* /*src_a*/, + const uint8_t* /*src_b*/, + int /*count*/) { + __asm { + mov eax, [esp + 4] // src_a + mov edx, [esp + 8] // src_b + mov ecx, [esp + 12] // count + pxor xmm0, xmm0 + pxor xmm5, xmm5 + sub edx, eax + + wloop: + movdqu xmm1, [eax] + movdqu xmm2, [eax + edx] + lea eax, [eax + 16] + movdqu xmm3, xmm1 + psubusb xmm1, xmm2 + psubusb xmm2, xmm3 + por xmm1, xmm2 + movdqu xmm2, xmm1 + punpcklbw xmm1, xmm5 + punpckhbw xmm2, xmm5 + pmaddwd xmm1, xmm1 + pmaddwd xmm2, xmm2 + paddd xmm0, xmm1 + paddd xmm0, xmm2 + sub ecx, 16 + ja wloop + + pshufd xmm1, xmm0, 0EEh + paddd xmm0, xmm1 + pshufd xmm1, xmm0, 01h + paddd xmm0, xmm1 + movd eax, xmm0 + ret + } +} +#elif !defined(LIBYUV_DISABLE_X86) && (defined(__x86_64__) || defined(__i386__)) +#define HAS_SUMSQUAREERROR_SSE2 +static uint32_t SumSquareError_SSE2(const uint8_t* src_a, + const uint8_t* src_b, + int count) { + uint32_t sse; + asm volatile( // NOLINT + "pxor %%xmm0,%%xmm0 \n" + "pxor %%xmm5,%%xmm5 \n" + "sub %0,%1 \n" + + "1: \n" + "movdqu (%0),%%xmm1 \n" + "movdqu (%0,%1,1),%%xmm2 \n" + "lea 0x10(%0),%0 \n" + "movdqu %%xmm1,%%xmm3 \n" + "psubusb %%xmm2,%%xmm1 \n" + "psubusb %%xmm3,%%xmm2 \n" + "por %%xmm2,%%xmm1 \n" + "movdqu %%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" + "ja 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" +#if defined(__SSE2__) + , + "xmm0", "xmm1", "xmm2", "xmm3", "xmm5" +#endif + ); // NOLINT + return sse; +} +#endif // LIBYUV_DISABLE_X86 etc + +#if defined(HAS_SUMSQUAREERROR_SSE2) +#if (defined(__pic__) || defined(__APPLE__)) && defined(__i386__) +static __inline void __cpuid(int cpu_info[4], int info_type) { + asm volatile( // NOLINT + "mov %%ebx, %%edi \n" + "cpuid \n" + "xchg %%edi, %%ebx \n" + : "=a"(cpu_info[0]), "=D"(cpu_info[1]), "=c"(cpu_info[2]), + "=d"(cpu_info[3]) + : "a"(info_type)); +} +// For gcc/clang but not clangcl. +#elif !defined(_MSC_VER) && (defined(__i386__) || defined(__x86_64__)) +static __inline void __cpuid(int cpu_info[4], int info_type) { + asm volatile( // NOLINT + "cpuid \n" + : "=a"(cpu_info[0]), "=b"(cpu_info[1]), "=c"(cpu_info[2]), + "=d"(cpu_info[3]) + : "a"(info_type)); +} +#endif + +static int CpuHasSSE2() { +#if defined(__i386__) || defined(__x86_64__) || defined(_M_IX86) + int cpu_info[4]; + __cpuid(cpu_info, 1); + if (cpu_info[3] & 0x04000000) { + return 1; + } +#endif + return 0; +} +#endif // HAS_SUMSQUAREERROR_SSE2 + +static uint32_t SumSquareError_C(const uint8_t* src_a, + const uint8_t* src_b, + int count) { + uint32_t sse = 0u; + for (int x = 0; x < count; ++x) { + int diff = src_a[x] - src_b[x]; + sse += static_cast(diff * diff); + } + return sse; +} + +double ComputeSumSquareError(const uint8_t* src_a, + const uint8_t* src_b, + int count) { + uint32_t (*SumSquareError)(const uint8_t* src_a, const uint8_t* src_b, + int count) = SumSquareError_C; +#if defined(HAS_SUMSQUAREERROR_NEON) + SumSquareError = SumSquareError_NEON; +#endif +#if defined(HAS_SUMSQUAREERROR_SSE2) + if (CpuHasSSE2()) { + SumSquareError = SumSquareError_SSE2; + } +#endif + const int kBlockSize = 1 << 15; + uint64_t sse = 0; +#ifdef _OPENMP +#pragma omp parallel for reduction(+ : sse) +#endif + for (int i = 0; i < (count - (kBlockSize - 1)); i += kBlockSize) { + sse += SumSquareError(src_a + i, src_b + i, kBlockSize); + } + src_a += count & ~(kBlockSize - 1); + src_b += count & ~(kBlockSize - 1); + int remainder = count & (kBlockSize - 1) & ~15; + if (remainder) { + sse += SumSquareError(src_a, src_b, remainder); + src_a += remainder; + src_b += remainder; + } + remainder = count & 15; + if (remainder) { + sse += SumSquareError_C(src_a, src_b, remainder); + } + return static_cast(sse); +} +#endif + +// PSNR formula: psnr = 10 * log10 (Peak Signal^2 * size / sse) +// Returns 128.0 (kMaxPSNR) if sse is 0 (perfect match). +double ComputePSNR(double sse, double size) { + const double kMINSSE = 255.0 * 255.0 * size / pow(10.0, kMaxPSNR / 10.0); + if (sse <= kMINSSE) { + sse = kMINSSE; // Produces max PSNR of 128 + } + return 10.0 * log10(255.0 * 255.0 * size / sse); +} + +#ifdef __cplusplus +} // extern "C" +#endif -- cgit v1.2.3