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Cleaning up foreach_predicted_block_in_plane() function.

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Change-Id: Ibb3d9667eba56621667412f62097aa7a392659c2
This commit is contained in:
Dmitry Kovalev 2013-10-04 15:53:32 -07:00
parent 56acf7e528
commit ee74054e81
1 changed files with 5 additions and 24 deletions
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29
vp9/common/vp9_reconinter.c
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@ -174,36 +174,17 @@ typedef void (*foreach_predicted_block_visitor)(int plane, int block,
static INLINE void foreach_predicted_block_in_plane(
const MACROBLOCKD* const xd, BLOCK_SIZE bsize, int plane,
foreach_predicted_block_visitor visit, void *arg) {
int i, x, y;
// block sizes in number of 4x4 blocks log 2 ("*_b")
// 4x4=0, 8x8=2, 16x16=4, 32x32=6, 64x64=8
// subsampled size of the block
const int bwl = b_width_log2(bsize) - xd->plane[plane].subsampling_x;
const int bhl = b_height_log2(bsize) - xd->plane[plane].subsampling_y;
// size of the predictor to use.
int pred_w, pred_h;
if (xd->this_mi->mbmi.sb_type < BLOCK_8X8) {
int i = 0, x, y;
assert(bsize == BLOCK_8X8);
pred_w = 0;
pred_h = 0;
for (y = 0; y < 1 << bhl; ++y)
for (x = 0; x < 1 << bwl; ++x)
visit(plane, i++, bsize, 0, 0, arg);
} else {
pred_w = bwl;
pred_h = bhl;
}
assert(pred_w <= bwl);
assert(pred_h <= bhl);
// visit each subblock in raster order
i = 0;
for (y = 0; y < 1 << bhl; y += 1 << pred_h) {
for (x = 0; x < 1 << bwl; x += 1 << pred_w) {
visit(plane, i, bsize, pred_w, pred_h, arg);
i += 1 << pred_w;
}
i += (1 << (bwl + pred_h)) - (1 << bwl);
visit(plane, 0, bsize, bwl, bhl, arg);
}
}