chromium/third_party/libwebp/src/sharpyuv/sharpyuv_dsp.c

// 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 ([email protected])

#include "sharpyuv/sharpyuv_dsp.h"

#include <assert.h>
#include <stdlib.h>

#include "sharpyuv/sharpyuv_cpu.h"
#include "src/webp/types.h"

//-----------------------------------------------------------------------------

#if !WEBP_NEON_OMIT_C_CODE
static uint16_t clip(int v, int max) { … }

static uint64_t SharpYuvUpdateY_C(const uint16_t* ref, const uint16_t* src,
                                  uint16_t* dst, int len, int bit_depth) { … }

static void SharpYuvUpdateRGB_C(const int16_t* ref, const int16_t* src,
                                int16_t* dst, int len) { … }

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) { … }
#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) { … }