Commit 87c21a95 authored by hkuang's avatar hkuang
Browse files

Optimize the decode_partition. About 0.7% gain on N10.

Change-Id: Ia689c254bd2d4f274abcc451a9b758f62e3a2b1f
parent 9c6eea35
......@@ -381,6 +381,15 @@ static void decode_block(VP9Decoder *const pbi, MACROBLOCKD *const xd,
VP9_COMMON *const cm = &pbi->common;
const int less8x8 = bsize < BLOCK_8X8;
MB_MODE_INFO *mbmi = set_offsets(cm, xd, tile, bsize, mi_row, mi_col);
if (bsize >= BLOCK_8X8 && (cm->subsampling_x || cm->subsampling_y)) {
const BLOCK_SIZE uv_subsize =
ss_size_lookup[bsize][cm->subsampling_x][cm->subsampling_y];
if (uv_subsize == BLOCK_INVALID)
vpx_internal_error(xd->error_info,
VPX_CODEC_CORRUPT_FRAME, "Invalid block size.");
}
vp9_read_mode_info(pbi, xd, tile, mi_row, mi_col, r);
if (less8x8)
......@@ -444,18 +453,14 @@ static void decode_partition(VP9Decoder *const pbi, MACROBLOCKD *const xd,
VP9_COMMON *const cm = &pbi->common;
const int hbs = num_8x8_blocks_wide_lookup[bsize] / 2;
PARTITION_TYPE partition;
BLOCK_SIZE subsize, uv_subsize;
BLOCK_SIZE subsize;
if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols)
return;
partition = read_partition(cm, xd, hbs, mi_row, mi_col, bsize, r);
subsize = get_subsize(bsize, partition);
uv_subsize = ss_size_lookup[subsize][cm->subsampling_x][cm->subsampling_y];
if (subsize >= BLOCK_8X8 && uv_subsize == BLOCK_INVALID)
vpx_internal_error(xd->error_info,
VPX_CODEC_CORRUPT_FRAME, "Invalid block size.");
if (subsize < BLOCK_8X8) {
if (bsize == BLOCK_8X8) {
decode_block(pbi, xd, tile, mi_row, mi_col, r, subsize);
} else {
switch (partition) {
......
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