static void aom_img_copy_tile(const aom_image_t *src, const aom_image_t *dst,
int dst_row_offset, int dst_col_offset) {
const int shift = (src->fmt & AOM_IMG_FMT_HIGHBITDEPTH) ? 1 : 0;
int plane;
for (plane = 0; plane < 3; ++plane) {
const unsigned char *src_buf = src->planes[plane];
const int src_stride = src->stride[plane];
unsigned char *dst_buf = dst->planes[plane];
const int dst_stride = dst->stride[plane];
const int roffset =
(plane > 0) ? dst_row_offset >> dst->y_chroma_shift : dst_row_offset;
const int coffset =
(plane > 0) ? dst_col_offset >> dst->x_chroma_shift : dst_col_offset;
// col offset needs to be adjusted for HBD.
dst_buf += roffset * dst_stride + (coffset << shift);
const int w = (aom_img_plane_width(src, plane) << shift);
const int h = aom_img_plane_height(src, plane);
int y;
for (y = 0; y < h; ++y) {
memcpy(dst_buf, src_buf, w);
src_buf += src_stride;
dst_buf += dst_stride;
}
}
}
static int aom_img_size_bytes(aom_image_t *img) {
int image_size_bytes = 0;
int plane;
for (plane = 0; plane < 3; ++plane) {
const int w = aom_img_plane_width(img, plane) *
((img->fmt & AOM_IMG_FMT_HIGHBITDEPTH) ? 2 : 1);
const int h = aom_img_plane_height(img, plane);
image_size_bytes += w * h;
}
return image_size_bytes;
}
static void update_image_md5(const aom_image_t *img, const int planes[3],
MD5Context *md5) {
int i, y;
for (i = 0; i < 3; ++i) {
const int plane = planes[i];
const unsigned char *buf = img->planes[plane];
const int stride = img->stride[plane];
const int w = aom_img_plane_width(img, plane) *
((img->fmt & AOM_IMG_FMT_HIGHBITDEPTH) ? 2 : 1);
const int h = aom_img_plane_height(img, plane);
for (y = 0; y < h; ++y) {
MD5Update(md5, buf, w);
buf += stride;
}
}
}
static void write_image_file(const aom_image_t *img, const int planes[3],
FILE *file) {
int i, y;
#if CONFIG_AOM_HIGHBITDEPTH
const int bytes_per_sample = ((img->fmt & AOM_IMG_FMT_HIGHBITDEPTH) ? 2 : 1);
#else
const int bytes_per_sample = 1;
#endif
for (i = 0; i < 3; ++i) {
const int plane = planes[i];
const unsigned char *buf = img->planes[plane];
const int stride = img->stride[plane];
const int w = aom_img_plane_width(img, plane);
const int h = aom_img_plane_height(img, plane);
for (y = 0; y < h; ++y) {
fwrite(buf, bytes_per_sample, w, file);
buf += stride;
}
}
}
EMSCRIPTEN_KEEPALIVE
int get_plane_height(int plane) {
return aom_img_plane_height(img, plane);
}
