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Commit bb505b3e authored by Henrik Gramner's avatar Henrik Gramner Committed by Jean-Baptiste Kempf
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Intra prediction DSP refactoring 

Also remove some redundant clips in DC pred.
parent 7e693a1d
Pipeline #928 passed with stage
in 1 minute and 52 seconds
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src/decode.c
View file @ bb505b3e
......@@ -2713,7 +2713,7 @@ int dav1d_submit_frame(Dav1dContext *const c) {
const int bd_idx = (f->seq_hdr.bpc - 8) >> 1;
f->dsp = &c->dsp[bd_idx];
if (!f->dsp->ipred.intra_pred[TX_4X4][DC_PRED]) {
if (!f->dsp->ipred.intra_pred[DC_PRED]) {
Dav1dDSPContext *const dsp = &c->dsp[bd_idx];
switch (f->seq_hdr.bpc) {
......
src/ipred.c
View file @ bb505b3e
......@@ -35,104 +35,60 @@
#include "common/intops.h"
#include "src/ipred.h"
#define sz_grid(l_fn) \
l_fn( 4, 4) \
l_fn( 4, 8) \
l_fn( 4, 16) \
l_fn( 8, 4) \
l_fn( 8, 8) \
l_fn( 8, 16) \
l_fn( 8, 32) \
l_fn(16, 4) \
l_fn(16, 8) \
l_fn(16, 16) \
l_fn(16, 32) \
l_fn(16, 64) \
l_fn(32, 8) \
l_fn(32, 16) \
l_fn(32, 32) \
l_fn(32, 64) \
l_fn(64, 16) \
l_fn(64, 32) \
l_fn(64, 64)
#include "src/tables.h"
static NOINLINE void
splat_dc_c(pixel *dst, const ptrdiff_t stride,
const int w, const int h, const unsigned dc)
splat_dc(pixel *dst, const ptrdiff_t stride,
const int width, const int height, const unsigned dc)
{
assert(dc <= (1 << BITDEPTH) - 1);
#if BITDEPTH == 8
if (w > 4) {
if (width > 4) {
const uint64_t dcN = dc * 0x0101010101010101ULL;
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x += sizeof(dcN))
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x += sizeof(dcN))
*((uint64_t *) &dst[x]) = dcN;
dst += PXSTRIDE(stride);
}
} else {
const unsigned dcN = dc * 0x01010101U;
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x += sizeof(dcN))
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x += sizeof(dcN))
*((unsigned *) &dst[x]) = dcN;
dst += PXSTRIDE(stride);
}
}
#else
const uint64_t dcN = dc * 0x0001000100010001ULL;
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x += sizeof(dcN) >> 1)
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x += sizeof(dcN) >> 1)
*((uint64_t *) &dst[x]) = dcN;
dst += PXSTRIDE(stride);
}
#endif
}
#define dc_lfn(w, h, dir, dc_gen) \
static void dc##dir##_##w##x##h##_c(pixel *dst, const ptrdiff_t stride, \
const pixel *const topleft, const int a) \
{ \
dc_gen; \
splat_dc_c(dst, stride, w, h, dc); \
static void ipred_dc_top_c(pixel *dst, const ptrdiff_t stride,
const pixel *const topleft,
const int width, const int height, const int a)
{
unsigned dc = width >> 1;
for (int i = 0; i < width; i++)
dc += topleft[1 + i];
splat_dc(dst, stride, width, height, dc >> ctz(width));
}
#define dc1d_lfns(width, height, sh1, sh2) \
dc_lfn(width, height, top, unsigned dc = width >> 1; \
for (int i = 0; i < width; i++) \
dc += topleft[1 + i]; \
dc >>= sh1) \
dc_lfn(width, height, left, unsigned dc = height >> 1; \
for (int i = 0; i < height; i++) \
dc += topleft[-(1 + i)]; \
dc >>= sh2)
dc1d_lfns( 4, 4, 2, 2)
dc1d_lfns( 4, 8, 2, 3)
dc1d_lfns( 4, 16, 2, 4)
dc1d_lfns( 8, 4, 3, 2)
dc1d_lfns( 8, 8, 3, 3)
dc1d_lfns( 8, 16, 3, 4)
dc1d_lfns( 8, 32, 3, 5)
dc1d_lfns(16, 4, 4, 2)
dc1d_lfns(16, 8, 4, 3)
dc1d_lfns(16, 16, 4, 4)
dc1d_lfns(16, 32, 4, 5)
dc1d_lfns(16, 64, 4, 6)
dc1d_lfns(32, 8, 5, 3)
dc1d_lfns(32, 16, 5, 4)
dc1d_lfns(32, 32, 5, 5)
dc1d_lfns(32, 64, 5, 6)
dc1d_lfns(64, 16, 6, 4)
dc1d_lfns(64, 32, 6, 5)
dc1d_lfns(64, 64, 6, 6)
#define dc2d_lfn(width, height, dc_gen) \
dc_lfn(width, height,, unsigned dc = (width + height) >> 1; \
for (int i = 0; i < width; i++) \
dc += topleft[i + 1]; \
for (int i = 0; i < height; i++) \
dc += topleft[-(i + 1)]; \
dc_gen)
static void ipred_dc_left_c(pixel *dst, const ptrdiff_t stride,
const pixel *const topleft,
const int width, const int height, const int a)
{
unsigned dc = height >> 1;
for (int i = 0; i < height; i++)
dc += topleft[-(1 + i)];
splat_dc(dst, stride, width, height, dc >> ctz(height));
}
#if BITDEPTH == 8
#define MULTIPLIER_1x2 0x5556
......@@ -144,38 +100,40 @@ dc_lfn(width, height,, unsigned dc = (width + height) >> 1; \
#define BASE_SHIFT 17
#endif
dc2d_lfn( 4, 4, dc >>= 3)
dc2d_lfn( 4, 8, dc = iclip_pixel(MULTIPLIER_1x2 * (dc >> 2) >> BASE_SHIFT))
dc2d_lfn( 4, 16, dc = iclip_pixel(MULTIPLIER_1x4 * (dc >> 2) >> BASE_SHIFT))
dc2d_lfn( 8, 4, dc = iclip_pixel(MULTIPLIER_1x2 * (dc >> 2) >> BASE_SHIFT))
dc2d_lfn( 8, 8, dc >>= 4)
dc2d_lfn( 8, 16, dc = iclip_pixel(MULTIPLIER_1x2 * (dc >> 3) >> BASE_SHIFT))
dc2d_lfn( 8, 32, dc = iclip_pixel(MULTIPLIER_1x4 * (dc >> 3) >> BASE_SHIFT))
dc2d_lfn(16, 4, dc = iclip_pixel(MULTIPLIER_1x4 * (dc >> 2) >> BASE_SHIFT))
dc2d_lfn(16, 8, dc = iclip_pixel(MULTIPLIER_1x2 * (dc >> 3) >> BASE_SHIFT))
dc2d_lfn(16, 16, dc >>= 5)
dc2d_lfn(16, 32, dc = iclip_pixel(MULTIPLIER_1x2 * (dc >> 4) >> BASE_SHIFT))
dc2d_lfn(16, 64, dc = iclip_pixel(MULTIPLIER_1x4 * (dc >> 4) >> BASE_SHIFT))
dc2d_lfn(32, 8, dc = iclip_pixel(MULTIPLIER_1x4 * (dc >> 3) >> BASE_SHIFT))
dc2d_lfn(32, 16, dc = iclip_pixel(MULTIPLIER_1x2 * (dc >> 4) >> BASE_SHIFT))
dc2d_lfn(32, 32, dc >>= 6)
dc2d_lfn(32, 64, dc = iclip_pixel(MULTIPLIER_1x2 * (dc >> 5) >> BASE_SHIFT))
dc2d_lfn(64, 16, dc = iclip_pixel(MULTIPLIER_1x4 * (dc >> 4) >> BASE_SHIFT))
dc2d_lfn(64, 32, dc = iclip_pixel(MULTIPLIER_1x2 * (dc >> 5) >> BASE_SHIFT))
dc2d_lfn(64, 64, dc >>= 7)
static void ipred_dc_c(pixel *dst, const ptrdiff_t stride,
const pixel *const topleft,
const int width, const int height, const int a)
{
unsigned dc = (width + height) >> 1;
for (int i = 0; i < width; i++)
dc += topleft[i + 1];
for (int i = 0; i < height; i++)
dc += topleft[-(i + 1)];
dc >>= ctz(width + height);
if (width != height) {
dc *= (width > height * 2 || height > width * 2) ? MULTIPLIER_1x4 :
MULTIPLIER_1x2;
dc >>= BASE_SHIFT;
}
splat_dc(dst, stride, width, height, dc);
}
#undef MULTIPLIER_1x2
#undef MULTIPLIER_1x4
#undef BASE_SHIFT
#define dc128_lfn(width, height) \
dc_lfn(width, height, 128, const unsigned dc = (1 << BITDEPTH) >> 1)
sz_grid(dc128_lfn)
static void ipred_dc_128_c(pixel *dst, const ptrdiff_t stride,
const pixel *const topleft,
const int width, const int height, const int a)
{
splat_dc(dst, stride, width, height, 1 << (BITDEPTH - 1));
}
static NOINLINE void
v_c(pixel *dst, const ptrdiff_t stride,
const pixel *const topleft, const int width, const int height)
static void ipred_v_c(pixel *dst, const ptrdiff_t stride,
const pixel *const topleft,
const int width, const int height, const int a)
{
for (int y = 0; y < height; y++) {
pixel_copy(dst, topleft + 1, width);
......@@ -183,18 +141,9 @@ v_c(pixel *dst, const ptrdiff_t stride,
}
}
#define v_lfn(width, height) \
static void v_##width##x##height##_##c(pixel *dst, const ptrdiff_t stride, \
const pixel *const topleft, const int a) \
{ \
v_c(dst, stride, topleft, width, height); \
}
sz_grid(v_lfn)
static NOINLINE void
h_c(pixel *dst, const ptrdiff_t stride,
const pixel *const topleft, const int width, const int height)
static void ipred_h_c(pixel *dst, const ptrdiff_t stride,
const pixel *const topleft,
const int width, const int height, const int a)
{
for (int y = 0; y < height; y++) {
pixel_set(dst, topleft[-(1 + y)], width);
......@@ -202,18 +151,9 @@ h_c(pixel *dst, const ptrdiff_t stride,
}
}
#define h_lfn(width, height) \
static void h_##width##x##height##_c(pixel *dst, const ptrdiff_t stride, \
const pixel *const topleft, const int a) \
{ \
h_c(dst, stride, topleft, width, height); \
}
sz_grid(h_lfn)
static NOINLINE void
paeth_c(pixel *dst, const ptrdiff_t stride, const pixel *const tl_ptr,
const int width, const int height)
static void ipred_paeth_c(pixel *dst, const ptrdiff_t stride,
const pixel *const tl_ptr,
const int width, const int height, const int a)
{
const int topleft = tl_ptr[0];
for (int y = 0; y < height; y++) {
......@@ -232,43 +172,12 @@ paeth_c(pixel *dst, const ptrdiff_t stride, const pixel *const tl_ptr,
}
}
#define paeth_lfn(width, height) \
static void paeth_##width##x##height##_c(pixel *dst, const ptrdiff_t stride, \
const pixel *const topleft, \
const int a) \
{ \
paeth_c(dst, stride, topleft, width, height); \
}
sz_grid(paeth_lfn)
static const uint8_t sm_weight_arrays[] = {
// Unused, because we always offset by bs, which is at least 2.
0, 0,
// bs = 2
255, 128,
// bs = 4
255, 149, 85, 64,
// bs = 8
255, 197, 146, 105, 73, 50, 37, 32,
// bs = 16
255, 225, 196, 170, 145, 123, 102, 84, 68, 54, 43, 33, 26, 20, 17, 16,
// bs = 32
255, 240, 225, 210, 196, 182, 169, 157, 145, 133, 122, 111, 101, 92, 83, 74,
66, 59, 52, 45, 39, 34, 29, 25, 21, 17, 14, 12, 10, 9, 8, 8,
// bs = 64
255, 248, 240, 233, 225, 218, 210, 203, 196, 189, 182, 176, 169, 163, 156,
150, 144, 138, 133, 127, 121, 116, 111, 106, 101, 96, 91, 86, 82, 77, 73, 69,
65, 61, 57, 54, 50, 47, 44, 41, 38, 35, 32, 29, 27, 25, 22, 20, 18, 16, 15,
13, 12, 10, 9, 8, 7, 6, 6, 5, 5, 4, 4, 4,
};
static NOINLINE void
smooth_c(pixel *dst, const ptrdiff_t stride, const pixel *const topleft,
const int width, const int height)
static void ipred_smooth_c(pixel *dst, const ptrdiff_t stride,
const pixel *const topleft,
const int width, const int height, const int a)
{
const uint8_t *const weights_hor = &sm_weight_arrays[width];
const uint8_t *const weights_ver = &sm_weight_arrays[height];
const uint8_t *const weights_hor = &dav1d_sm_weights[width];
const uint8_t *const weights_ver = &dav1d_sm_weights[height];
const int right = topleft[width], bottom = topleft[-height];
for (int y = 0; y < height; y++) {
......@@ -283,21 +192,11 @@ smooth_c(pixel *dst, const ptrdiff_t stride, const pixel *const topleft,
}
}
#define smooth_lfn(width, height) \
static void smooth_##width##x##height##_c(pixel *dst, const ptrdiff_t stride, \
const pixel *const topleft, \
const int a) \
{ \
smooth_c(dst, stride, topleft, width, height); \
}
sz_grid(smooth_lfn)
static NOINLINE void
smooth_v_c(pixel *dst, const ptrdiff_t stride, const pixel *const topleft,
const int width, const int height)
static void ipred_smooth_v_c(pixel *dst, const ptrdiff_t stride,
const pixel *const topleft,
const int width, const int height, const int a)
{
const uint8_t *const weights_ver = &sm_weight_arrays[height];
const uint8_t *const weights_ver = &dav1d_sm_weights[height];
const int bottom = topleft[-height];
for (int y = 0; y < height; y++) {
......@@ -310,21 +209,11 @@ smooth_v_c(pixel *dst, const ptrdiff_t stride, const pixel *const topleft,
}
}
#define smooth_v_lfn(width, height) \
static void smooth_v_##width##x##height##_c(pixel *dst, const ptrdiff_t stride, \
const pixel *const topleft, \
const int a) \
{ \
smooth_v_c(dst, stride, topleft, width, height); \
}
sz_grid(smooth_v_lfn)
static NOINLINE void
smooth_h_c(pixel *dst, const ptrdiff_t stride, const pixel *const topleft,
const int width, const int height)
static void ipred_smooth_h_c(pixel *dst, const ptrdiff_t stride,
const pixel *const topleft,
const int width, const int height, const int a)
{
const uint8_t *const weights_hor = &sm_weight_arrays[width];
const uint8_t *const weights_hor = &dav1d_sm_weights[width];
const int right = topleft[width];
for (int y = 0; y < height; y++) {
......@@ -337,50 +226,6 @@ smooth_h_c(pixel *dst, const ptrdiff_t stride, const pixel *const topleft,
}
}
#define smooth_h_lfn(width, height) \
static void smooth_h_##width##x##height##_c(pixel *dst, const ptrdiff_t stride, \
const pixel *const topleft, \
const int a) \
{ \
smooth_h_c(dst, stride, topleft, width, height); \
}
sz_grid(smooth_h_lfn)
static const int16_t dr_intra_derivative[90] = {
// More evenly spread out angles and limited to 10-bit
// Values that are 0 will never be used
// Approx angle
0, 0, 0, //
1023, 0, 0, // 3, ...
547, 0, 0, // 6, ...
372, 0, 0, 0, 0, // 9, ...
273, 0, 0, // 14, ...
215, 0, 0, // 17, ...
178, 0, 0, // 20, ...
151, 0, 0, // 23, ... (113 & 203 are base angles)
132, 0, 0, // 26, ...
116, 0, 0, // 29, ...
102, 0, 0, 0, // 32, ...
90, 0, 0, // 36, ...
80, 0, 0, // 39, ...
71, 0, 0, // 42, ...
64, 0, 0, // 45, ... (45 & 135 are base angles)
57, 0, 0, // 48, ...
51, 0, 0, // 51, ...
45, 0, 0, 0, // 54, ...
40, 0, 0, // 58, ...
35, 0, 0, // 61, ...
31, 0, 0, // 64, ...
27, 0, 0, // 67, ... (67 & 157 are base angles)
23, 0, 0, // 70, ...
19, 0, 0, // 73, ...
15, 0, 0, 0, 0, // 76, ...
11, 0, 0, // 81, ...
7, 0, 0, // 84, ...
3, 0, 0, // 87, ...
};
static int get_filter_strength(const unsigned blk_wh, const unsigned d,
const int type)
{
......@@ -421,11 +266,10 @@ static int get_filter_strength(const unsigned blk_wh, const unsigned d,
return strength;
}
static void filter_edge(pixel *const out, const int sz,
const pixel *const in, const int from, const int to,
const unsigned strength)
static void filter_edge(pixel *const out, const int sz, const pixel *const in,
const int from, const int to, const unsigned strength)
{
const uint8_t kernel[3][5] = {
static const uint8_t kernel[3][5] = {
{ 0, 4, 8, 4, 0 },
{ 0, 5, 6, 5, 0 },
{ 2, 4, 4, 4, 2 }
......@@ -448,7 +292,7 @@ static int get_upsample(const int blk_wh, const unsigned d, const int type) {
static void upsample_edge(pixel *const out, const int hsz,
const pixel *const in, const int from, const int to)
{
const int8_t kernel[4] = { -1, 9, 9, -1 };
static const int8_t kernel[4] = { -1, 9, 9, -1 };
int i;
for (i = 0; i < hsz - 1; i++) {
out[i * 2] = in[iclip(i, from, to - 1)];
......@@ -461,14 +305,14 @@ static void upsample_edge(pixel *const out, const int hsz,
out[i * 2] = in[iclip(i, from, to - 1)];
}
static NOINLINE void
z1_c(pixel *dst, const ptrdiff_t stride, const pixel *const topleft_in,
int angle, const int width, const int height)
static void ipred_z1_c(pixel *dst, const ptrdiff_t stride,
const pixel *const topleft_in,
const int width, const int height, int angle)
{
const int is_sm = angle >> 9;
angle &= 511;
assert(angle < 90);
const int dx = dr_intra_derivative[angle];
const int dx = dav1d_dr_intra_derivative[angle];
pixel top_out[(64 + 64) * 2];
const pixel *top;
int max_base_x;
......@@ -513,25 +357,15 @@ z1_c(pixel *dst, const ptrdiff_t stride, const pixel *const topleft_in,
}
}
#define z1_lfn(width, height) \
static void z1_##width##x##height##_c(pixel *dst, const ptrdiff_t stride, \
const pixel *const topleft, \
const int angle) \
{ \
z1_c(dst, stride, topleft, angle, width, height); \
}
sz_grid(z1_lfn)
static NOINLINE void
z2_c(pixel *dst, const ptrdiff_t stride, const pixel *const topleft_in,
int angle, const int width, const int height)
static void ipred_z2_c(pixel *dst, const ptrdiff_t stride,
const pixel *const topleft_in,
const int width, const int height, int angle)
{
const int is_sm = angle >> 9;
angle &= 511;
assert(angle > 90 && angle < 180);
const int dy = dr_intra_derivative[angle - 90];
const int dx = dr_intra_derivative[180 - angle];
const int dy = dav1d_dr_intra_derivative[angle - 90];
const int dx = dav1d_dr_intra_derivative[180 - angle];
const int upsample_left = get_upsample(width + height, 180 - angle, is_sm);
const int upsample_above = get_upsample(width + height, angle - 90, is_sm);
pixel edge[64 * 2 + 64 * 2 + 1];
......@@ -594,24 +428,14 @@ z2_c(pixel *dst, const ptrdiff_t stride, const pixel *const topleft_in,
}
}
#define z2_lfn(width, height) \
static void z2_##width##x##height##_c(pixel *dst, const ptrdiff_t stride, \
const pixel *const topleft, \
const int angle) \
{ \
z2_c(dst, stride, topleft, angle, width, height); \
}
sz_grid(z2_lfn)
static NOINLINE void
z3_c(pixel *dst, const ptrdiff_t stride, const pixel *const topleft_in,
int angle, const int width, const int height)
static void ipred_z3_c(pixel *dst, const ptrdiff_t stride,
const pixel *const topleft_in,
const int width, const int height, int angle)
{
const int is_sm = angle >> 9;
angle &= 511;
assert(angle > 180);
const int dy = dr_intra_derivative[270 - angle];
const int dy = dav1d_dr_intra_derivative[270 - angle];
pixel left_out[(64 + 64) * 2];
const pixel *left;
int max_base_y;
......@@ -659,74 +483,15 @@ z3_c(pixel *dst, const ptrdiff_t stride, const pixel *const topleft_in,
}
}
#define z3_lfn(width, height) \
static void z3_##width##x##height##_c(pixel *dst, const ptrdiff_t stride, \
const pixel *const topleft, \
const int angle) \
{ \
z3_c(dst, stride, topleft, angle, width, height); \
}
sz_grid(z3_lfn)
static const int8_t av1_filter_intra_taps[5][8][8] = {
{
{ -6, 10, 0, 0, 0, 12, 0, 0 },
{ -5, 2, 10, 0, 0, 9, 0, 0 },
{ -3, 1, 1, 10, 0, 7, 0, 0 },
{ -3, 1, 1, 2, 10, 5, 0, 0 },
{ -4, 6, 0, 0, 0, 2, 12, 0 },
{ -3, 2, 6, 0, 0, 2, 9, 0 },
{ -3, 2, 2, 6, 0, 2, 7, 0 },
{ -3, 1, 2, 2, 6, 3, 5, 0 },
}, {
{ -10, 16, 0, 0, 0, 10, 0, 0 },
{ -6, 0, 16, 0, 0, 6, 0, 0 },
{ -4, 0, 0, 16, 0, 4, 0, 0 },
{ -2, 0, 0, 0, 16, 2, 0, 0 },
{ -10, 16, 0, 0, 0, 0, 10, 0 },
{ -6, 0, 16, 0, 0, 0, 6, 0 },
{ -4, 0, 0, 16, 0, 0, 4, 0 },
{ -2, 0, 0, 0, 16, 0, 2, 0 },
}, {
{ -8, 8, 0, 0, 0, 16, 0, 0 },
{ -8, 0, 8, 0, 0, 16, 0, 0 },
{ -8, 0, 0, 8, 0, 16, 0, 0 },
{ -8, 0, 0, 0, 8, 16, 0, 0 },
{ -4, 4, 0, 0, 0, 0, 16, 0 },
{ -4, 0, 4, 0, 0, 0, 16, 0 },
{ -4, 0, 0, 4, 0, 0, 16, 0 },
{ -4, 0, 0, 0, 4, 0, 16, 0 },
}, {
{ -2, 8, 0, 0, 0, 10, 0, 0 },
{ -1, 3, 8, 0, 0, 6, 0, 0 },
{ -1, 2, 3, 8, 0, 4, 0, 0 },
{ 0, 1, 2, 3, 8, 2, 0, 0 },
{ -1, 4, 0, 0, 0, 3, 10, 0 },
{ -1, 3, 4, 0, 0, 4, 6, 0 },
{ -1, 2, 3, 4, 0, 4, 4, 0 },
{ -1, 2, 2, 3, 4, 3, 3, 0 },
}, {
{ -12, 14, 0, 0, 0, 14, 0, 0 },
{ -10, 0, 14, 0, 0, 12, 0, 0 },
{ -9, 0, 0, 14, 0, 11, 0, 0 },
{ -8, 0, 0, 0, 14, 10, 0, 0 },
{ -10, 12, 0, 0, 0, 0, 14, 0 },
{ -9, 1, 12, 0, 0, 0, 12, 0 },
{ -8, 0, 0, 12, 0, 1, 11, 0 },
{ -7, 0, 0, 1, 12, 1, 9, 0 },
},
};
static NOINLINE void
filter_intra_c(pixel *dst, const ptrdiff_t stride,
const pixel *const topleft_in,
int filt_idx, const int width, const int height)
/* Up to 32x32 only */
static void ipred_filter_c(pixel *dst, const ptrdiff_t stride,
const pixel *const topleft_in,
const int width, const int height, int filt_idx)
{
filt_idx &= 511;
assert(filt_idx < 5);
const int8_t (*const filter)[8] = av1_filter_intra_taps[filt_idx];
const int8_t (*const filter)[8] = dav1d_filter_intra_taps[filt_idx];
int x, y;
ptrdiff_t left_stride;
const pixel *left, *topleft, *top;
......@@ -764,30 +529,6 @@ filter_intra_c(pixel *dst, const ptrdiff_t stride,
}
}
#define filter_lfn(width, height) \
static void filter_##width##x##height##_c(pixel *const dst, \