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Make palette code faster: replace nested for loops by a single memcpy().

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Change-Id: Ia14df45a35c98d680822454fbb8d1763884c1852
This commit is contained in:
Urvang Joshi
2016-08-03 16:42:11 -07:00
parent 108df24d2a
commit a0a23b7f0c
1 changed files with 3 additions and 10 deletions
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13
vp10/encoder/rdopt.c
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@@ -1949,9 +1949,7 @@ static int rd_pick_palette_intra_sby(VP10_COMP *cpi, MACROBLOCK *x,
pmi->palette_size[0] = k; pmi->palette_size[0] = k;
vp10_calc_indices(data, centroids, indices, rows * cols, k, 1); vp10_calc_indices(data, centroids, indices, rows * cols, k, 1);
for (r = 0; r < rows; ++r) memcpy(color_map, indices, rows * cols * sizeof(*color_map));
for (c = 0; c < cols; ++c)
color_map[r * cols + c] = indices[r * cols + c];
super_block_yrd(cpi, x, &this_rate_tokenonly, &this_distortion, super_block_yrd(cpi, x, &this_rate_tokenonly, &this_distortion,
&s, NULL, bsize, *best_rd); &s, NULL, bsize, *best_rd);
@@ -3825,9 +3823,7 @@ static void rd_pick_palette_intra_sbuv(VP10_COMP *cpi, MACROBLOCK *x,
clip_pixel((int)lroundf(centroids[j * 2 + i - 1])); clip_pixel((int)lroundf(centroids[j * 2 + i - 1]));
} }
} }
for (r = 0; r < rows; ++r) memcpy(color_map, indices, rows * cols * sizeof(*color_map));
for (c = 0; c < cols; ++c)
color_map[r * cols + c] = indices[r * cols + c];
super_block_uvrd(cpi, x, &this_rate_tokenonly, super_block_uvrd(cpi, x, &this_rate_tokenonly,
&this_distortion, &s, &this_sse, bsize, *best_rd); &this_distortion, &s, &this_sse, bsize, *best_rd);
@@ -8343,10 +8339,7 @@ static void restore_uv_color_map(VP10_COMP *cpi, MACROBLOCK *x) {
vp10_calc_indices(data, centroids, indices, rows * cols, vp10_calc_indices(data, centroids, indices, rows * cols,
pmi->palette_size[1], 2); pmi->palette_size[1], 2);
memcpy(color_map, indices, rows * cols * sizeof(*color_map));
for (r = 0; r < rows; ++r)
for (c = 0; c < cols; ++c)
color_map[r * cols + c] = indices[r * cols + c];
} }
#if CONFIG_EXT_INTRA #if CONFIG_EXT_INTRA