From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- media/libwebp/sharpyuv/sharpyuv_dsp.c | 104 ++++++++++++++++++++++++++++++++++ 1 file changed, 104 insertions(+) create mode 100644 media/libwebp/sharpyuv/sharpyuv_dsp.c (limited to 'media/libwebp/sharpyuv/sharpyuv_dsp.c') diff --git a/media/libwebp/sharpyuv/sharpyuv_dsp.c b/media/libwebp/sharpyuv/sharpyuv_dsp.c new file mode 100644 index 0000000000..0da3efc0b8 --- /dev/null +++ b/media/libwebp/sharpyuv/sharpyuv_dsp.c @@ -0,0 +1,104 @@ +// Copyright 2022 Google Inc. All Rights Reserved. +// +// Use of this source code is governed by a BSD-style license +// that can be found in the COPYING 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. +// ----------------------------------------------------------------------------- +// +// Speed-critical functions for Sharp YUV. +// +// Author: Skal (pascal.massimino@gmail.com) + +#include "sharpyuv/sharpyuv_dsp.h" + +#include +#include + +#include "sharpyuv/sharpyuv_cpu.h" + +//----------------------------------------------------------------------------- + +#if !WEBP_NEON_OMIT_C_CODE +static uint16_t clip(int v, int max) { + return (v < 0) ? 0 : (v > max) ? max : (uint16_t)v; +} + +static uint64_t SharpYuvUpdateY_C(const uint16_t* ref, const uint16_t* src, + uint16_t* dst, int len, int bit_depth) { + uint64_t diff = 0; + int i; + const int max_y = (1 << bit_depth) - 1; + for (i = 0; i < len; ++i) { + const int diff_y = ref[i] - src[i]; + const int new_y = (int)dst[i] + diff_y; + dst[i] = clip(new_y, max_y); + diff += (uint64_t)abs(diff_y); + } + return diff; +} + +static void SharpYuvUpdateRGB_C(const int16_t* ref, const int16_t* src, + int16_t* dst, int len) { + int i; + for (i = 0; i < len; ++i) { + const int diff_uv = ref[i] - src[i]; + dst[i] += diff_uv; + } +} + +static void SharpYuvFilterRow_C(const int16_t* A, const int16_t* B, int len, + const uint16_t* best_y, uint16_t* out, + int bit_depth) { + int i; + const int max_y = (1 << bit_depth) - 1; + for (i = 0; i < len; ++i, ++A, ++B) { + const int v0 = (A[0] * 9 + A[1] * 3 + B[0] * 3 + B[1] + 8) >> 4; + const int v1 = (A[1] * 9 + A[0] * 3 + B[1] * 3 + B[0] + 8) >> 4; + out[2 * i + 0] = clip(best_y[2 * i + 0] + v0, max_y); + out[2 * i + 1] = clip(best_y[2 * i + 1] + v1, max_y); + } +} +#endif // !WEBP_NEON_OMIT_C_CODE + +//----------------------------------------------------------------------------- + +uint64_t (*SharpYuvUpdateY)(const uint16_t* src, const uint16_t* ref, + uint16_t* dst, int len, int bit_depth); +void (*SharpYuvUpdateRGB)(const int16_t* src, const int16_t* ref, int16_t* dst, + int len); +void (*SharpYuvFilterRow)(const int16_t* A, const int16_t* B, int len, + const uint16_t* best_y, uint16_t* out, + int bit_depth); + +extern VP8CPUInfo SharpYuvGetCPUInfo; +extern void InitSharpYuvSSE2(void); +extern void InitSharpYuvNEON(void); + +void SharpYuvInitDsp(void) { +#if !WEBP_NEON_OMIT_C_CODE + SharpYuvUpdateY = SharpYuvUpdateY_C; + SharpYuvUpdateRGB = SharpYuvUpdateRGB_C; + SharpYuvFilterRow = SharpYuvFilterRow_C; +#endif + + if (SharpYuvGetCPUInfo != NULL) { +#if defined(WEBP_HAVE_SSE2) + if (SharpYuvGetCPUInfo(kSSE2)) { + InitSharpYuvSSE2(); + } +#endif // WEBP_HAVE_SSE2 + } + +#if defined(WEBP_HAVE_NEON) + if (WEBP_NEON_OMIT_C_CODE || + (SharpYuvGetCPUInfo != NULL && SharpYuvGetCPUInfo(kNEON))) { + InitSharpYuvNEON(); + } +#endif // WEBP_HAVE_NEON + + assert(SharpYuvUpdateY != NULL); + assert(SharpYuvUpdateRGB != NULL); + assert(SharpYuvFilterRow != NULL); +} -- cgit v1.2.3