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/*
* Copyright (c) 2017, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
// Utility functions used by encoder binaries.
#include <assert.h>
#include <string.h>
#include "./encoder_util.h"
#include "aom/aom_integer.h"
#define mmin(a, b) ((a) < (b) ? (a) : (b))
static void find_mismatch_plane(const aom_image_t *const img1,
const aom_image_t *const img2, int plane,
int use_highbitdepth, int loc[4]) {
const unsigned char *const p1 = img1->planes[plane];
const int p1_stride = img1->stride[plane] >> use_highbitdepth;
const unsigned char *const p2 = img2->planes[plane];
const int p2_stride = img2->stride[plane] >> use_highbitdepth;
const uint32_t bsize = 64;
const int is_y_plane = (plane == AOM_PLANE_Y);
const uint32_t bsizex = is_y_plane ? bsize : bsize >> img1->x_chroma_shift;
const uint32_t bsizey = is_y_plane ? bsize : bsize >> img1->y_chroma_shift;
const uint32_t c_w =
is_y_plane ? img1->d_w
: (img1->d_w + img1->x_chroma_shift) >> img1->x_chroma_shift;
const uint32_t c_h =
is_y_plane ? img1->d_h
: (img1->d_h + img1->y_chroma_shift) >> img1->y_chroma_shift;
assert(img1->d_w == img2->d_w && img1->d_h == img2->d_h);
assert(img1->x_chroma_shift == img2->x_chroma_shift &&
img1->y_chroma_shift == img2->y_chroma_shift);
loc[0] = loc[1] = loc[2] = loc[3] = -1;
int match = 1;
uint32_t i, j;
for (i = 0; match && i < c_h; i += bsizey) {
for (j = 0; match && j < c_w; j += bsizex) {
const int si =
is_y_plane ? mmin(i + bsizey, c_h) - i : mmin(i + bsizey, c_h - i);
const int sj =
is_y_plane ? mmin(j + bsizex, c_w) - j : mmin(j + bsizex, c_w - j);
int k, l;
for (k = 0; match && k < si; ++k) {
for (l = 0; match && l < sj; ++l) {
const int row = i + k;
const int col = j + l;
const int offset1 = row * p1_stride + col;
const int offset2 = row * p2_stride + col;
const int val1 = use_highbitdepth
? p1[2 * offset1] | (p1[2 * offset1 + 1] << 8)
: p1[offset1];
const int val2 = use_highbitdepth
? p2[2 * offset2] | (p2[2 * offset2 + 1] << 8)
: p2[offset2];
if (val1 != val2) {
loc[0] = row;
loc[1] = col;
loc[2] = val1;
loc[3] = val2;
match = 0;
break;
}
}
}
}
}
}
static void find_mismatch_helper(const aom_image_t *const img1,
const aom_image_t *const img2,
int use_highbitdepth, int yloc[4], int uloc[4],
int vloc[4]) {
#if !CONFIG_HIGHBITDEPTH
assert(!use_highbitdepth);
#endif // !CONFIG_HIGHBITDEPTH
find_mismatch_plane(img1, img2, AOM_PLANE_Y, use_highbitdepth, yloc);
find_mismatch_plane(img1, img2, AOM_PLANE_U, use_highbitdepth, uloc);
find_mismatch_plane(img1, img2, AOM_PLANE_V, use_highbitdepth, vloc);
}
#if CONFIG_HIGHBITDEPTH
void aom_find_mismatch_high(const aom_image_t *const img1,
const aom_image_t *const img2, int yloc[4],
int uloc[4], int vloc[4]) {
find_mismatch_helper(img1, img2, 1, yloc, uloc, vloc);
}
#endif
void aom_find_mismatch(const aom_image_t *const img1,
const aom_image_t *const img2, int yloc[4], int uloc[4],
int vloc[4]) {
find_mismatch_helper(img1, img2, 0, yloc, uloc, vloc);
}
int aom_compare_img(const aom_image_t *const img1,
const aom_image_t *const img2) {
uint32_t l_w = img1->d_w;
uint32_t c_w = (img1->d_w + img1->x_chroma_shift) >> img1->x_chroma_shift;
const uint32_t c_h =
(img1->d_h + img1->y_chroma_shift) >> img1->y_chroma_shift;
uint32_t i;
int match = 1;
match &= (img1->fmt == img2->fmt);
match &= (img1->d_w == img2->d_w);
match &= (img1->d_h == img2->d_h);
#if CONFIG_HIGHBITDEPTH
if (img1->fmt & AOM_IMG_FMT_HIGHBITDEPTH) {
l_w *= 2;
c_w *= 2;
}
#endif
for (i = 0; i < img1->d_h; ++i)
match &= (memcmp(img1->planes[AOM_PLANE_Y] + i * img1->stride[AOM_PLANE_Y],
img2->planes[AOM_PLANE_Y] + i * img2->stride[AOM_PLANE_Y],
l_w) == 0);
for (i = 0; i < c_h; ++i)
match &= (memcmp(img1->planes[AOM_PLANE_U] + i * img1->stride[AOM_PLANE_U],
img2->planes[AOM_PLANE_U] + i * img2->stride[AOM_PLANE_U],
c_w) == 0);
for (i = 0; i < c_h; ++i)
match &= (memcmp(img1->planes[AOM_PLANE_V] + i * img1->stride[AOM_PLANE_V],
img2->planes[AOM_PLANE_V] + i * img2->stride[AOM_PLANE_V],
c_w) == 0);
return match;
}
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