chromium/third_party/dav1d/libdav1d/src/qm.c

/*
 * Copyright © 2018, VideoLAN and dav1d authors
 * Copyright © 2018, Two Orioles, LLC
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"

#include <string.h>

#include "common/attributes.h"

#include "src/qm.h"

static const uint8_t qm_tbl_32x16[][2][512] = …;

static const uint8_t qm_tbl_32x32_t[][2][528] = …;

const uint8_t *dav1d_qm_tbl[16][2][N_RECT_TX_SIZES];
static uint8_t qm_tbl_4x4[15][2][16];
static uint8_t qm_tbl_4x8[15][2][32];
static uint8_t qm_tbl_4x16[15][2][64];
static uint8_t qm_tbl_8x4[15][2][32];
static uint8_t qm_tbl_8x8[15][2][64];
static uint8_t qm_tbl_8x16[15][2][128];
static uint8_t qm_tbl_8x32[15][2][256];
static uint8_t qm_tbl_16x4[15][2][64];
static uint8_t qm_tbl_16x8[15][2][128];
static uint8_t qm_tbl_16x16[15][2][256];
static uint8_t qm_tbl_16x32[15][2][512];
static uint8_t qm_tbl_32x8[15][2][256];
static uint8_t qm_tbl_32x32[15][2][1024];

static void subsample(uint8_t *dst, const uint8_t *const src,
                      const int h, const int hstep, const int vstep)
{ … }

static void transpose(uint8_t *const dst, const uint8_t *const src,
                      const int w, const int h)
{ … }

static void untriangle(uint8_t *dst, const uint8_t *src, const int sz) { … }

COLD void dav1d_init_qm_tables(void) { … }