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Use new PDPC filtering for planar and DC modes

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This commit is contained in:
RLamm 2019-08-29 12:51:34 +03:00
parent cb0d7c340a
commit 83ac39094a
1 changed files with 39 additions and 40 deletions
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79
src/intra.c
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@ -246,7 +246,7 @@ void kvz_intra_predict(
} else {
// Angular modes use smoothed reference pixels, unless the mode is close
// to being either vertical or horizontal.
static const int kvz_intra_hor_ver_dist_thres[10] = {24, 24, 24, 14, 2, 0, 20, 0, 0, 0 };
static const int kvz_intra_hor_ver_dist_thres[8] = {24, 24, 24, 14, 2, 0, 0, 0 };
int filter_threshold = kvz_intra_hor_ver_dist_thres[kvz_math_floor_log2(width)];
int dist_from_vert_or_hor = MIN(abs(mode - 50), abs(mode - 18));
if (dist_from_vert_or_hor > filter_threshold) {
@ -273,53 +273,52 @@ void kvz_intra_predict(
// TODO: replace latter log2_width with log2_height
const int scale = ((log2_width - 2 + log2_width - 2 + 2) >> 2);
if (mode == 0) { // planar
if (mode == 0 || mode == 1) { // planar or DC
// TODO: replace width with height
for (int y = 0; y < width; y++) {
int wT = 32 >> MIN(31, ((y << 1) >> scale));
for (int x = 0; x < width; x++) {
int wL = 32 >> MIN(31, ((x << 1) >> scale));
dst[x + y * width] = CLIP_TO_PIXEL((wL * used_ref->left[y + 1]
+ wT * used_ref->top[x + 1]
+ (64 - wL - wT) * dst[x + y * width] + 32) >> 6);
}
}
}
else if (mode == 1) { // DC
for (int y = 0; y < width; y++) {
int wT = 32 >> MIN(31, ((y << 1) >> scale));
for (int x = 0; x < width; x++) {
int wL = 32 >> MIN(31, ((x << 1) >> scale));
int wTL = (wL >> 4) + (wT >> 4);
dst[x + y * width] = CLIP_TO_PIXEL((wL * used_ref->left[y + 1]
+ wT * used_ref->top[x + 1]
- wTL * used_ref->top[0]
+ (64 - wL - wT + wTL) * dst[x + y * width] + 32) >> 6);
}
}
}
else if (mode == 18) { // horizontal
for (int y = 0; y < width; y++) {
int wT = 32 >> MIN(31, ((y << 1) >> scale));
for (int x = 0; x < width; x++) {
int wTL = wT;
dst[x + y * width] = CLIP_TO_PIXEL((wT * used_ref->top[x + 1]
- wTL * used_ref->top[0]
+ (64 - wT + wTL) * dst[x + y * width] + 32) >> 6);
}
}
}
else if (mode == 50) { // vertical
for (int y = 0; y < width; y++) {
for (int x = 0; x < width; x++) {
int wL = 32 >> MIN(31, ((x << 1) >> scale));
int wTL = wL;
dst[x + y * width] = CLIP_TO_PIXEL((wL * used_ref->left[y + 1]
- wTL * used_ref->top[0]
+ (64 - wL + wTL) * dst[x + y * width] + 32) >> 6);
dst[x + y * width] = dst[x + y * width] + ((wL * (used_ref->left[y + 1] - dst[x + y * width])
+ wT * (used_ref->top[x + 1] - dst[x + y * width]) + 32) >> 6);
}
}
}
//else if (mode == 1) { // DC
// for (int y = 0; y < width; y++) {
// int wT = 32 >> MIN(31, ((y << 1) >> scale));
// for (int x = 0; x < width; x++) {
// int wL = 32 >> MIN(31, ((x << 1) >> scale));
// int wTL = (wL >> 4) + (wT >> 4);
// dst[x + y * width] = CLIP_TO_PIXEL((wL * used_ref->left[y + 1]
// + wT * used_ref->top[x + 1]
// - wTL * used_ref->top[0]
// + (64 - wL - wT + wTL) * dst[x + y * width] + 32) >> 6);
// }
// }
//}
//else if (mode == 18) { // horizontal
// for (int y = 0; y < width; y++) {
// int wT = 32 >> MIN(31, ((y << 1) >> scale));
// for (int x = 0; x < width; x++) {
// int wTL = wT;
// dst[x + y * width] = CLIP_TO_PIXEL((wT * used_ref->top[x + 1]
// - wTL * used_ref->top[0]
// + (64 - wT + wTL) * dst[x + y * width] + 32) >> 6);
// }
// }
//}
//else if (mode == 50) { // vertical
// for (int y = 0; y < width; y++) {
// for (int x = 0; x < width; x++) {
// int wL = 32 >> MIN(31, ((x << 1) >> scale));
// int wTL = wL;
// dst[x + y * width] = CLIP_TO_PIXEL((wL * used_ref->left[y + 1]
// - wTL * used_ref->top[0]
// + (64 - wL + wTL) * dst[x + y * width] + 32) >> 6);
// }
// }
//}
}
}