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Unify decode_sb for >16x16 in vp9_decodframe.c 

First patch to make sb decoding based on the transform size. This patch
is working for the sb modes, combining the parts of decode_mb that fit
into this framework will come as a second patch.

Change-Id: I26123416a7a87e096bbdb5eb944ce5bb198384f8
This commit is contained in:
John Koleszar 2013-04-26 17:52:35 -07:00
Родитель fb3e4ed9eb
Коммит d8a120c196
1 изменённых файлов: 51 добавлений и 190 удалений
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241
vp9/decoder/vp9_decodframe.c
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@ -383,183 +383,60 @@ static void decode_4x4(VP9D_COMP *pbi, MACROBLOCKD *xd, vp9_reader *r) {
}
}
static INLINE void decode_sby_32x32(MACROBLOCKD *mb, BLOCK_SIZE_TYPE bsize) {
const int bwl = b_width_log2(bsize) - 3, bw = 1 << bwl;
const int bhl = b_height_log2(bsize) - 3, bh = 1 << bhl;
const int y_count = bw * bh;
int n;
static int txfrm_block_to_raster_block(MACROBLOCKD *xd,
BLOCK_SIZE_TYPE bsize,
int plane, int block,
int ss_txfrm_size) {
const int bwl = b_width_log2(bsize) - xd->plane[plane].subsampling_x;
const int txwl = ss_txfrm_size / 2;
const int tx_cols_lg2 = bwl - txwl;
const int tx_cols = 1 << tx_cols_lg2;
const int raster_mb = block >> ss_txfrm_size;
const int x = (raster_mb & (tx_cols - 1)) << (txwl);
const int y = raster_mb >> tx_cols_lg2 << (txwl);
return x + (y << bwl);
}
for (n = 0; n < y_count; n++) {
const int x_idx = n & (bw - 1);
const int y_idx = n >> bwl;
const int y_offset = (y_idx * 32) * mb->plane[0].dst.stride + (x_idx * 32);
vp9_idct_add_32x32(BLOCK_OFFSET(mb->plane[0].qcoeff, n, 1024),
mb->plane[0].dst.buf + y_offset,
mb->plane[0].dst.stride,
mb->plane[0].eobs[n * 64]);
static void decode_block(int plane, int block, BLOCK_SIZE_TYPE bsize,
int ss_txfrm_size, void *arg) {
MACROBLOCKD* const xd = arg;
int16_t* const qcoeff = BLOCK_OFFSET(xd->plane[plane].qcoeff, block, 16);
const int stride = xd->plane[plane].dst.stride;
const int raster_block = txfrm_block_to_raster_block(xd, bsize, plane,
block, ss_txfrm_size);
uint8_t* const dst = raster_block_offset_uint8(xd, bsize, plane,
raster_block,
xd->plane[plane].dst.buf,
stride);
TX_TYPE tx_type;
switch (ss_txfrm_size / 2) {
case TX_4X4:
tx_type = plane == 0 ? get_tx_type_4x4(xd, raster_block) : DCT_DCT;
if (tx_type == DCT_DCT)
xd->itxm_add(qcoeff, dst, stride, xd->plane[plane].eobs[block]);
else
vp9_iht_add_c(tx_type, qcoeff, dst, stride,
xd->plane[plane].eobs[block]);
break;
case TX_8X8:
tx_type = plane == 0 ? get_tx_type_8x8(xd, raster_block) : DCT_DCT;
vp9_iht_add_8x8_c(tx_type, qcoeff, dst, stride,
xd->plane[plane].eobs[block]);
break;
case TX_16X16:
tx_type = plane == 0 ? get_tx_type_16x16(xd, raster_block) : DCT_DCT;
vp9_iht_add_16x16_c(tx_type, qcoeff, dst, stride,
xd->plane[plane].eobs[block]);
break;
case TX_32X32:
vp9_idct_add_32x32(qcoeff, dst, stride, xd->plane[plane].eobs[block]);
break;
}
}
static INLINE void decode_sbuv_32x32(MACROBLOCKD *mb, BLOCK_SIZE_TYPE bsize) {
const int bwl = b_width_log2(bsize) - 3, bw = (1 << bwl) / 2;
const int bhl = b_height_log2(bsize) - 3, bh = (1 << bhl) / 2;
const int uv_count = bw * bh;
int n;
for (n = 0; n < uv_count; n++) {
const int x_idx = n & (bw - 1);
const int y_idx = n >> (bwl - 1);
const int uv_offset = (y_idx * 32) * mb->plane[1].dst.stride +
(x_idx * 32);
vp9_idct_add_32x32(BLOCK_OFFSET(mb->plane[1].qcoeff, n, 1024),
mb->plane[1].dst.buf + uv_offset,
mb->plane[1].dst.stride,
mb->plane[1].eobs[n * 64]);
vp9_idct_add_32x32(BLOCK_OFFSET(mb->plane[2].qcoeff, n, 1024),
mb->plane[2].dst.buf + uv_offset,
mb->plane[1].dst.stride,
mb->plane[2].eobs[n * 64]);
}
}
static INLINE void decode_sby_16x16(MACROBLOCKD *mb, BLOCK_SIZE_TYPE bsize) {
const int bwl = b_width_log2(bsize) - 2, bw = 1 << bwl;
const int bhl = b_height_log2(bsize) - 2, bh = 1 << bhl;
const int y_count = bw * bh;
int n;
for (n = 0; n < y_count; n++) {
const int x_idx = n & (bw - 1);
const int y_idx = n >> bwl;
const int y_offset = (y_idx * 16) * mb->plane[0].dst.stride + (x_idx * 16);
const TX_TYPE tx_type = get_tx_type_16x16(mb,
(y_idx * (4 * bw) + x_idx) * 4);
vp9_iht_add_16x16_c(tx_type, BLOCK_OFFSET(mb->plane[0].qcoeff, n, 256),
mb->plane[0].dst.buf + y_offset,
mb->plane[0].dst.stride, mb->plane[0].eobs[n * 16]);
}
}
static INLINE void decode_sbuv_16x16(MACROBLOCKD *mb, BLOCK_SIZE_TYPE bsize) {
const int bwl = b_width_log2(bsize) - 2, bw = (1 << bwl) / 2;
const int bhl = b_height_log2(bsize) - 2, bh = (1 << bhl) / 2;
const int uv_count = bw * bh;
int n;
assert(bsize >= BLOCK_SIZE_SB32X32);
for (n = 0; n < uv_count; n++) {
const int x_idx = n & (bw - 1);
const int y_idx = n >> (bwl - 1);
const int uv_offset = (y_idx * 16) * mb->plane[1].dst.stride + (x_idx * 16);
vp9_idct_add_16x16(BLOCK_OFFSET(mb->plane[1].qcoeff, n, 256),
mb->plane[1].dst.buf + uv_offset,
mb->plane[1].dst.stride, mb->plane[1].eobs[n * 16]);
vp9_idct_add_16x16(BLOCK_OFFSET(mb->plane[2].qcoeff, n, 256),
mb->plane[2].dst.buf + uv_offset,
mb->plane[1].dst.stride, mb->plane[2].eobs[n * 16]);
}
}
static INLINE void decode_sby_8x8(MACROBLOCKD *xd, BLOCK_SIZE_TYPE bsize) {
const int bwl = b_width_log2(bsize) - 1, bw = 1 << bwl;
const int bhl = b_height_log2(bsize) - 1, bh = 1 << bhl;
const int y_count = bw * bh;
int n;
// luma
for (n = 0; n < y_count; n++) {
const int x_idx = n & (bw - 1);
const int y_idx = n >> bwl;
const int y_offset = (y_idx * 8) * xd->plane[0].dst.stride + (x_idx * 8);
const TX_TYPE tx_type = get_tx_type_8x8(xd,
(y_idx * (2 * bw) + x_idx) * 2);
vp9_iht_add_8x8_c(tx_type, BLOCK_OFFSET(xd->plane[0].qcoeff, n, 64),
xd->plane[0].dst.buf + y_offset, xd->plane[0].dst.stride,
xd->plane[0].eobs[n * 4]);
}
}
static INLINE void decode_sbuv_8x8(MACROBLOCKD *xd, BLOCK_SIZE_TYPE bsize) {
const int bwl = b_width_log2(bsize) - 1, bw = 1 << (bwl - 1);
const int bhl = b_height_log2(bsize) - 1, bh = 1 << (bhl - 1);
const int uv_count = bw * bh;
int n;
// chroma
for (n = 0; n < uv_count; n++) {
const int x_idx = n & (bw - 1);
const int y_idx = n >> (bwl - 1);
const int uv_offset = (y_idx * 8) * xd->plane[1].dst.stride + (x_idx * 8);
vp9_idct_add_8x8(BLOCK_OFFSET(xd->plane[1].qcoeff, n, 64),
xd->plane[1].dst.buf + uv_offset, xd->plane[1].dst.stride,
xd->plane[1].eobs[n * 4]);
vp9_idct_add_8x8(BLOCK_OFFSET(xd->plane[2].qcoeff, n, 64),
xd->plane[2].dst.buf + uv_offset, xd->plane[1].dst.stride,
xd->plane[2].eobs[n * 4]);
}
}
static INLINE void decode_sby_4x4(MACROBLOCKD *xd, BLOCK_SIZE_TYPE bsize) {
const int bwl = b_width_log2(bsize), bw = 1 << bwl;
const int bhl = b_height_log2(bsize), bh = 1 << bhl;
const int y_count = bw * bh;
int n;
for (n = 0; n < y_count; n++) {
const int x_idx = n & (bw - 1);
const int y_idx = n >> bwl;
const int y_offset = (y_idx * 4) * xd->plane[0].dst.stride + (x_idx * 4);
const TX_TYPE tx_type = get_tx_type_4x4(xd, n);
if (tx_type == DCT_DCT) {
xd->itxm_add(BLOCK_OFFSET(xd->plane[0].qcoeff, n, 16),
xd->plane[0].dst.buf + y_offset, xd->plane[0].dst.stride,
xd->plane[0].eobs[n]);
} else {
vp9_iht_add_c(tx_type, BLOCK_OFFSET(xd->plane[0].qcoeff, n, 16),
xd->plane[0].dst.buf + y_offset, xd->plane[0].dst.stride,
xd->plane[0].eobs[n]);
}
}
}
static INLINE void decode_sbuv_4x4(MACROBLOCKD *xd, BLOCK_SIZE_TYPE bsize) {
const int bwl = b_width_log2(bsize), bw = 1 << (bwl - 1);
const int bhl = b_height_log2(bsize), bh = 1 << (bhl - 1);
const int uv_count = bw * bh;
int n;
for (n = 0; n < uv_count; n++) {
const int x_idx = n & (bw - 1);
const int y_idx = n >> (bwl - 1);
const int uv_offset = (y_idx * 4) * xd->plane[1].dst.stride + (x_idx * 4);
xd->itxm_add(BLOCK_OFFSET(xd->plane[1].qcoeff, n, 16),
xd->plane[1].dst.buf + uv_offset, xd->plane[1].dst.stride,
xd->plane[1].eobs[n]);
xd->itxm_add(BLOCK_OFFSET(xd->plane[2].qcoeff, n, 16),
xd->plane[2].dst.buf + uv_offset, xd->plane[1].dst.stride,
xd->plane[2].eobs[n]);
}
}
// TODO(jingning): combine luma and chroma dequantization and inverse
// transform into a single function looping over planes.
static void decode_sb_32x32(MACROBLOCKD *mb, BLOCK_SIZE_TYPE bsize) {
decode_sby_32x32(mb, bsize);
if (bsize == BLOCK_SIZE_SB64X64)
decode_sbuv_32x32(mb, bsize);
else
decode_sbuv_16x16(mb, bsize);
}
static void decode_sb_16x16(MACROBLOCKD *mb, BLOCK_SIZE_TYPE bsize) {
decode_sby_16x16(mb, bsize);
if (bsize >= BLOCK_SIZE_SB32X32)
decode_sbuv_16x16(mb, bsize);
else
decode_sbuv_8x8(mb, bsize);
}
static void decode_sb(VP9D_COMP *pbi, MACROBLOCKD *xd, int mi_row, int mi_col,
vp9_reader *r, BLOCK_SIZE_TYPE bsize) {
const int bwl = mi_width_log2(bsize), bhl = mi_height_log2(bsize);
@ -600,23 +477,7 @@ static void decode_sb(VP9D_COMP *pbi, MACROBLOCKD *xd, int mi_row, int mi_col,
mi[y_idx * mis + x_idx].mbmi.mb_skip_coeff = 1;
}
} else {
switch (mbmi->txfm_size) {
case TX_32X32:
decode_sb_32x32(xd, bsize);
break;
case TX_16X16:
decode_sb_16x16(xd, bsize);
break;
case TX_8X8:
decode_sby_8x8(xd, bsize);
decode_sbuv_8x8(xd, bsize);
break;
case TX_4X4:
decode_sby_4x4(xd, bsize);
decode_sbuv_4x4(xd, bsize);
break;
default: assert(0);
}
foreach_transformed_block(xd, bsize, decode_block, xd);
}
}
}