ref: 8fd5dc3a5cea402114d59e509b52d869d6a86cb4
parent: 63f96a1f9b5e62d2dd53c1435765e21ffb84ad23
author: Ronald S. Bultje <rsbultje@gmail.com>
date: Fri Mar 27 04:38:01 EDT 2020
Make dav1d_resize_filter[] negative so it fits in int8_t
--- a/src/mc_tmpl.c
+++ b/src/mc_tmpl.c
@@ -891,15 +891,15 @@
do {int mx = mx0, src_x = -1;
for (int x = 0; x < dst_w; x++) {- const int16_t *const F = dav1d_resize_filter[mx >> 8];
- dst[x] = iclip_pixel((F[0] * src[iclip(src_x - 3, 0, src_w - 1)] +
- F[1] * src[iclip(src_x - 2, 0, src_w - 1)] +
- F[2] * src[iclip(src_x - 1, 0, src_w - 1)] +
- F[3] * src[iclip(src_x + 0, 0, src_w - 1)] +
- F[4] * src[iclip(src_x + 1, 0, src_w - 1)] +
- F[5] * src[iclip(src_x + 2, 0, src_w - 1)] +
- F[6] * src[iclip(src_x + 3, 0, src_w - 1)] +
- F[7] * src[iclip(src_x + 4, 0, src_w - 1)] +
+ const int8_t *const F = dav1d_resize_filter[mx >> 8];
+ dst[x] = iclip_pixel((-(F[0] * src[iclip(src_x - 3, 0, src_w - 1)] +
+ F[1] * src[iclip(src_x - 2, 0, src_w - 1)] +
+ F[2] * src[iclip(src_x - 1, 0, src_w - 1)] +
+ F[3] * src[iclip(src_x + 0, 0, src_w - 1)] +
+ F[4] * src[iclip(src_x + 1, 0, src_w - 1)] +
+ F[5] * src[iclip(src_x + 2, 0, src_w - 1)] +
+ F[6] * src[iclip(src_x + 3, 0, src_w - 1)] +
+ F[7] * src[iclip(src_x + 4, 0, src_w - 1)]) +
64) >> 7);
mx += dx;
src_x += mx >> 14;
--- a/src/tables.c
+++ b/src/tables.c
@@ -636,39 +636,39 @@
W( 0, 0, 0, 0, 2, 127, - 1, 0 ),
};
-const int16_t dav1d_resize_filter[64][8] = {- { 0, 0, 0, 128, 0, 0, 0, 0 }, { 0, 0, -1, 128, 2, -1, 0, 0 },- { 0, 1, -3, 127, 4, -2, 1, 0 }, { 0, 1, -4, 127, 6, -3, 1, 0 },- { 0, 2, -6, 126, 8, -3, 1, 0 }, { 0, 2, -7, 125, 11, -4, 1, 0 },- { -1, 2, -8, 125, 13, -5, 2, 0 }, { -1, 3, -9, 124, 15, -6, 2, 0 },- { -1, 3, -10, 123, 18, -6, 2, -1 }, { -1, 3, -11, 122, 20, -7, 3, -1 },- { -1, 4, -12, 121, 22, -8, 3, -1 }, { -1, 4, -13, 120, 25, -9, 3, -1 },- { -1, 4, -14, 118, 28, -9, 3, -1 }, { -1, 4, -15, 117, 30, -10, 4, -1 },- { -1, 5, -16, 116, 32, -11, 4, -1 }, { -1, 5, -16, 114, 35, -12, 4, -1 },- { -1, 5, -17, 112, 38, -12, 4, -1 }, { -1, 5, -18, 111, 40, -13, 5, -1 },- { -1, 5, -18, 109, 43, -14, 5, -1 }, { -1, 6, -19, 107, 45, -14, 5, -1 },- { -1, 6, -19, 105, 48, -15, 5, -1 }, { -1, 6, -19, 103, 51, -16, 5, -1 },- { -1, 6, -20, 101, 53, -16, 6, -1 }, { -1, 6, -20, 99, 56, -17, 6, -1 },- { -1, 6, -20, 97, 58, -17, 6, -1 }, { -1, 6, -20, 95, 61, -18, 6, -1 },- { -2, 7, -20, 93, 64, -18, 6, -2 }, { -2, 7, -20, 91, 66, -19, 6, -1 },- { -2, 7, -20, 88, 69, -19, 6, -1 }, { -2, 7, -20, 86, 71, -19, 6, -1 },- { -2, 7, -20, 84, 74, -20, 7, -2 }, { -2, 7, -20, 81, 76, -20, 7, -1 },- { -2, 7, -20, 79, 79, -20, 7, -2 }, { -1, 7, -20, 76, 81, -20, 7, -2 },- { -2, 7, -20, 74, 84, -20, 7, -2 }, { -1, 6, -19, 71, 86, -20, 7, -2 },- { -1, 6, -19, 69, 88, -20, 7, -2 }, { -1, 6, -19, 66, 91, -20, 7, -2 },- { -2, 6, -18, 64, 93, -20, 7, -2 }, { -1, 6, -18, 61, 95, -20, 6, -1 },- { -1, 6, -17, 58, 97, -20, 6, -1 }, { -1, 6, -17, 56, 99, -20, 6, -1 },- { -1, 6, -16, 53, 101, -20, 6, -1 }, { -1, 5, -16, 51, 103, -19, 6, -1 },- { -1, 5, -15, 48, 105, -19, 6, -1 }, { -1, 5, -14, 45, 107, -19, 6, -1 },- { -1, 5, -14, 43, 109, -18, 5, -1 }, { -1, 5, -13, 40, 111, -18, 5, -1 },- { -1, 4, -12, 38, 112, -17, 5, -1 }, { -1, 4, -12, 35, 114, -16, 5, -1 },- { -1, 4, -11, 32, 116, -16, 5, -1 }, { -1, 4, -10, 30, 117, -15, 4, -1 },- { -1, 3, -9, 28, 118, -14, 4, -1 }, { -1, 3, -9, 25, 120, -13, 4, -1 },- { -1, 3, -8, 22, 121, -12, 4, -1 }, { -1, 3, -7, 20, 122, -11, 3, -1 },- { -1, 2, -6, 18, 123, -10, 3, -1 }, { 0, 2, -6, 15, 124, -9, 3, -1 },- { 0, 2, -5, 13, 125, -8, 2, -1 }, { 0, 1, -4, 11, 125, -7, 2, 0 },- { 0, 1, -3, 8, 126, -6, 2, 0 }, { 0, 1, -3, 6, 127, -4, 1, 0 },- { 0, 1, -2, 4, 127, -3, 1, 0 }, { 0, 0, -1, 2, 128, -1, 0, 0 },+const int8_t dav1d_resize_filter[64][8] = {+ { 0, 0, 0, -128, 0, 0, 0, 0 }, { 0, 0, 1, -128, -2, 1, 0, 0 },+ { 0, -1, 3, -127, -4, 2, -1, 0 }, { 0, -1, 4, -127, -6, 3, -1, 0 },+ { 0, -2, 6, -126, -8, 3, -1, 0 }, { 0, -2, 7, -125, -11, 4, -1, 0 },+ { 1, -2, 8, -125, -13, 5, -2, 0 }, { 1, -3, 9, -124, -15, 6, -2, 0 },+ { 1, -3, 10, -123, -18, 6, -2, 1 }, { 1, -3, 11, -122, -20, 7, -3, 1 },+ { 1, -4, 12, -121, -22, 8, -3, 1 }, { 1, -4, 13, -120, -25, 9, -3, 1 },+ { 1, -4, 14, -118, -28, 9, -3, 1 }, { 1, -4, 15, -117, -30, 10, -4, 1 },+ { 1, -5, 16, -116, -32, 11, -4, 1 }, { 1, -5, 16, -114, -35, 12, -4, 1 },+ { 1, -5, 17, -112, -38, 12, -4, 1 }, { 1, -5, 18, -111, -40, 13, -5, 1 },+ { 1, -5, 18, -109, -43, 14, -5, 1 }, { 1, -6, 19, -107, -45, 14, -5, 1 },+ { 1, -6, 19, -105, -48, 15, -5, 1 }, { 1, -6, 19, -103, -51, 16, -5, 1 },+ { 1, -6, 20, -101, -53, 16, -6, 1 }, { 1, -6, 20, -99, -56, 17, -6, 1 },+ { 1, -6, 20, -97, -58, 17, -6, 1 }, { 1, -6, 20, -95, -61, 18, -6, 1 },+ { 2, -7, 20, -93, -64, 18, -6, 2 }, { 2, -7, 20, -91, -66, 19, -6, 1 },+ { 2, -7, 20, -88, -69, 19, -6, 1 }, { 2, -7, 20, -86, -71, 19, -6, 1 },+ { 2, -7, 20, -84, -74, 20, -7, 2 }, { 2, -7, 20, -81, -76, 20, -7, 1 },+ { 2, -7, 20, -79, -79, 20, -7, 2 }, { 1, -7, 20, -76, -81, 20, -7, 2 },+ { 2, -7, 20, -74, -84, 20, -7, 2 }, { 1, -6, 19, -71, -86, 20, -7, 2 },+ { 1, -6, 19, -69, -88, 20, -7, 2 }, { 1, -6, 19, -66, -91, 20, -7, 2 },+ { 2, -6, 18, -64, -93, 20, -7, 2 }, { 1, -6, 18, -61, -95, 20, -6, 1 },+ { 1, -6, 17, -58, -97, 20, -6, 1 }, { 1, -6, 17, -56, -99, 20, -6, 1 },+ { 1, -6, 16, -53, -101, 20, -6, 1 }, { 1, -5, 16, -51, -103, 19, -6, 1 },+ { 1, -5, 15, -48, -105, 19, -6, 1 }, { 1, -5, 14, -45, -107, 19, -6, 1 },+ { 1, -5, 14, -43, -109, 18, -5, 1 }, { 1, -5, 13, -40, -111, 18, -5, 1 },+ { 1, -4, 12, -38, -112, 17, -5, 1 }, { 1, -4, 12, -35, -114, 16, -5, 1 },+ { 1, -4, 11, -32, -116, 16, -5, 1 }, { 1, -4, 10, -30, -117, 15, -4, 1 },+ { 1, -3, 9, -28, -118, 14, -4, 1 }, { 1, -3, 9, -25, -120, 13, -4, 1 },+ { 1, -3, 8, -22, -121, 12, -4, 1 }, { 1, -3, 7, -20, -122, 11, -3, 1 },+ { 1, -2, 6, -18, -123, 10, -3, 1 }, { 0, -2, 6, -15, -124, 9, -3, 1 },+ { 0, -2, 5, -13, -125, 8, -2, 1 }, { 0, -1, 4, -11, -125, 7, -2, 0 },+ { 0, -1, 3, -8, -126, 6, -2, 0 }, { 0, -1, 3, -6, -127, 4, -1, 0 },+ { 0, -1, 2, -4, -127, 3, -1, 0 }, { 0, 0, 1, -2, -128, 1, 0, 0 },};
const uint8_t dav1d_sm_weights[128] = {--- a/src/tables.h
+++ b/src/tables.h
@@ -112,7 +112,7 @@
extern const int8_t dav1d_mc_subpel_filters[5][15][8];
extern const int8_t dav1d_mc_warp_filter[193][8];
-extern const int16_t dav1d_resize_filter[64][8];
+extern const int8_t dav1d_resize_filter[64][8];
extern const uint8_t dav1d_sm_weights[128];
extern const uint16_t dav1d_dr_intra_derivative[44];