ref: a0eb045cd4af0b43cd8a4d954a726048fa6bb85d
parent: 60869f8ad97f43b2bcb9eb82fbdf28dc77678c95
author: Luca Barbato <lu_zero@gentoo.org>
date: Wed Jul 17 15:31:47 EDT 2019
vsx: Add cdef_filter clang-8: cdef_filter_4x4_8bpc_c: 436.6 cdef_filter_4x4_8bpc_vsx: 101.1 cdef_filter_4x8_8bpc_c: 827.7 cdef_filter_4x8_8bpc_vsx: 183.5 cdef_filter_8x8_8bpc_c: 1510.2 cdef_filter_8x8_8bpc_vsx: 289.1 gcc-9: cdef_filter_4x4_8bpc_c: 403.2 cdef_filter_4x4_8bpc_vsx: 105.6 cdef_filter_4x8_8bpc_c: 825.5 cdef_filter_4x8_8bpc_vsx: 192.2 cdef_filter_8x8_8bpc_c: 1586.3 cdef_filter_8x8_8bpc_vsx: 295.0
--- a/src/cdef.h
+++ b/src/cdef.h
@@ -67,6 +67,7 @@
bitfn_decls(void dav1d_cdef_dsp_init, Dav1dCdefDSPContext *c);
bitfn_decls(void dav1d_cdef_dsp_init_arm, Dav1dCdefDSPContext *c);
+bitfn_decls(void dav1d_cdef_dsp_init_ppc, Dav1dCdefDSPContext *c);
bitfn_decls(void dav1d_cdef_dsp_init_x86, Dav1dCdefDSPContext *c);
#endif /* DAV1D_SRC_CDEF_H */
--- a/src/cdef_tmpl.c
+++ b/src/cdef_tmpl.c
@@ -263,6 +263,8 @@
#if HAVE_ASM
#if ARCH_AARCH64 || ARCH_ARM
bitfn(dav1d_cdef_dsp_init_arm)(c);
+#elif ARCH_PPC64LE
+ bitfn(dav1d_cdef_dsp_init_ppc)(c);
#elif ARCH_X86
bitfn(dav1d_cdef_dsp_init_x86)(c);
#endif
--- a/src/meson.build
+++ b/src/meson.build
@@ -67,6 +67,10 @@
'recon_tmpl.c',
)
+libdav1d_arch_tmpl_sources = []
+
+libdav1d_bitdepth_objs = []
+
# libdav1d entrypoint source files
# These source files contain library entry points and are
# built with the stack-realign flag set, where necessary.
@@ -77,6 +81,8 @@
# ASM specific sources
libdav1d_nasm_objs = []
+# Arch-specific flags
+arch_flags = []
if is_asm_enabled
if (host_machine.cpu_family() == 'aarch64' or
host_machine.cpu_family().startswith('arm'))@@ -151,9 +157,13 @@
# Compile the ASM sources with NASM
libdav1d_nasm_objs = nasm_gen.process(libdav1d_sources_asm)
elif host_machine.cpu() == 'ppc64le'
+ arch_flags = ['-maltivec', '-mvsx']
libdav1d_sources += files(
'ppc/cpu.c',
)
+ libdav1d_arch_tmpl_sources += files(
+ 'ppc/cdef_init_tmpl.c',
+ )
endif
endif
@@ -218,6 +228,19 @@
include_directories: dav1d_inc_dirs,
dependencies : [stdatomic_dependency],
c_args : ['-DBITDEPTH=@0@'.format(bitdepth)] + stackalign_flag,
+ install : false,
+ build_by_default : false,
+ ).extract_all_objects()
+endforeach
+
+# Helper library for each bitdepth and architecture-specific flags
+foreach bitdepth : dav1d_bitdepths
+ libdav1d_bitdepth_objs += static_library(
+ 'dav1d_arch_bitdepth_@0@'.format(bitdepth),
+ libdav1d_arch_tmpl_sources, config_h_target,
+ include_directories: dav1d_inc_dirs,
+ dependencies : [stdatomic_dependency],
+ c_args : ['-DBITDEPTH=@0@'.format(bitdepth)] + stackalign_flag + arch_flags,
install : false,
build_by_default : false,
).extract_all_objects()
--- /dev/null
+++ b/src/ppc/cdef_init_tmpl.c
@@ -1,0 +1,489 @@
+/*
+ * Copyright © 2019, Luca Barbato
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <assert.h>
+#include <stdlib.h>
+
+#include "src/ppc/types.h"
+
+#include "common/bitdepth.h"
+
+#include "src/cpu.h"
+#include "src/cdef.h"
+#include "common/intops.h"
+
+#if BITDEPTH == 8
+static inline i16x8 vconstrain(const i16x8 diff, const int16_t threshold,
+ const int damping)
+{+ const i16x8 zero = vec_splat_s16(0);
+ if (!threshold) return zero;
+ const uint16_t shift = imax(0, damping - ulog2(threshold));
+ const i16x8 abs_diff = vec_abs(diff);
+ const b16x8 mask = vec_cmplt(diff, zero);
+ const i16x8 thr = vec_splats(threshold);
+ const i16x8 sub = vec_sub(thr, vec_sra(abs_diff, vec_splats(shift)));
+ const i16x8 max = vec_max(zero, sub);
+ const i16x8 min = vec_min(abs_diff, max);
+ const i16x8 neg = vec_sub(zero, min);
+ return vec_sel(min, neg, mask);
+}
+
+static inline void copy4xN(uint16_t *tmp, const ptrdiff_t tmp_stride,
+ const uint8_t *src, const ptrdiff_t src_stride,
+ const uint8_t (*left)[2], uint8_t *const top[2],
+ const int w, const int h,
+ const enum CdefEdgeFlags edges)
+{+ const u16x8 fill = vec_splats((uint16_t)INT16_MAX);
+
+ u16x8 l0;
+ u16x8 l1;
+
+ int y_start = -2, y_end = h + 2;
+
+ // Copy top and bottom first
+ if (!(edges & CDEF_HAVE_TOP)) {+ l0 = fill;
+ l1 = fill;
+ y_start = 0;
+ } else {+ l0 = u8h_to_u16(vec_vsx_ld(0, top[0] - 2));
+ l1 = u8h_to_u16(vec_vsx_ld(0, top[1] - 2));
+ }
+
+ vec_st(l0, 0, tmp - 2 * 8);
+ vec_st(l1, 0, tmp - 1 * 8);
+
+ if (!(edges & CDEF_HAVE_BOTTOM)) {+ l0 = fill;
+ l1 = fill;
+ y_end -= 2;
+ } else {+ l0 = u8h_to_u16(vec_vsx_ld(0, src - 2 + (h + 0) * src_stride));
+ l1 = u8h_to_u16(vec_vsx_ld(0, src - 2 + (h + 1) * src_stride));
+ }
+
+ vec_st(l0, 0, tmp + (h + 0) * 8);
+ vec_st(l1, 0, tmp + (h + 1) * 8);
+
+ for (int y = 0; y < h; y++) {+ u16x8 l = u8h_to_u16(vec_vsx_ld(0, src - 2 + y * src_stride));
+ vec_st(l, 0, tmp + y * 8);
+ }
+
+ if (!(edges & CDEF_HAVE_LEFT)) {+ for (int y = y_start; y < y_end; y++) {+ tmp[y * 8] = INT16_MAX;
+ tmp[1 + y * 8] = INT16_MAX;
+ }
+ } else {+ for (int y = 0; y < h; y++) {+ tmp[y * 8] = left[y][0];
+ tmp[1 + y * 8] = left[y][1];
+ }
+ }
+ if (!(edges & CDEF_HAVE_RIGHT)) {+ for (int y = y_start; y < y_end; y++) {+ tmp[- 2 + (y + 1) * 8] = INT16_MAX;
+ tmp[- 1 + (y + 1) * 8] = INT16_MAX;
+ }
+ }
+}
+
+static inline void copy8xN(uint16_t *tmp, const ptrdiff_t tmp_stride,
+ const uint8_t *src, const ptrdiff_t src_stride,
+ const uint8_t (*left)[2], uint8_t *const top[2],
+ const int w, const int h,
+ const enum CdefEdgeFlags edges)
+{+ const u16x8 fill = vec_splats((uint16_t)INT16_MAX);
+
+ u16x8 l0h, l0l;
+ u16x8 l1h, l1l;
+
+ int y_start = -2, y_end = h + 2;
+
+ // Copy top and bottom first
+ if (!(edges & CDEF_HAVE_TOP)) {+ l0h = fill;
+ l0l = fill;
+ l1h = fill;
+ l1l = fill;
+ y_start = 0;
+ } else {+ u8x16 l0 = vec_vsx_ld(0, top[0] - 2);
+ u8x16 l1 = vec_vsx_ld(0, top[1] - 2);
+ l0h = u8h_to_u16(l0);
+ l0l = u8l_to_u16(l0);
+ l1h = u8h_to_u16(l1);
+ l1l = u8l_to_u16(l1);
+ }
+
+ vec_st(l0h, 0, tmp - 4 * 8);
+ vec_st(l0l, 0, tmp - 3 * 8);
+ vec_st(l1h, 0, tmp - 2 * 8);
+ vec_st(l1l, 0, tmp - 1 * 8);
+
+ if (!(edges & CDEF_HAVE_BOTTOM)) {+ l0h = fill;
+ l0l = fill;
+ l1h = fill;
+ l1l = fill;
+ y_end -= 2;
+ } else {+ u8x16 l0 = vec_vsx_ld(0, src - 2 + (h + 0) * src_stride);
+ u8x16 l1 = vec_vsx_ld(0, src - 2 + (h + 1) * src_stride);
+ l0h = u8h_to_u16(l0);
+ l0l = u8l_to_u16(l0);
+ l1h = u8h_to_u16(l1);
+ l1l = u8l_to_u16(l1);
+ }
+
+ vec_st(l0h, 0, tmp + (h + 0) * 16);
+ vec_st(l0l, 0, tmp + (h + 0) * 16 + 8);
+ vec_st(l1h, 0, tmp + (h + 1) * 16);
+ vec_st(l1l, 0, tmp + (h + 1) * 16 + 8);
+
+ for (int y = 0; y < h; y++) {+ u8x16 l = vec_vsx_ld(0, src - 2 + y * src_stride);
+ u16x8 lh = u8h_to_u16(l);
+ u16x8 ll = u8l_to_u16(l);
+ vec_st(lh, 0, tmp + y * 16);
+ vec_st(ll, 0, tmp + 8 + y * 16);
+ }
+
+ if (!(edges & CDEF_HAVE_LEFT)) {+ for (int y = y_start; y < y_end; y++) {+ tmp[y * 16] = INT16_MAX;
+ tmp[1 + y * 16] = INT16_MAX;
+ }
+ } else {+ for (int y = 0; y < h; y++) {+ tmp[y * 16] = left[y][0];
+ tmp[1 + y * 16] = left[y][1];
+ }
+ }
+ if (!(edges & CDEF_HAVE_RIGHT)) {+ for (int y = y_start; y < y_end; y++) {+ tmp[- 6 + (y + 1) * 16] = INT16_MAX;
+ tmp[- 5 + (y + 1) * 16] = INT16_MAX;
+ }
+ }
+}
+
+static inline i16x8 max_mask(i16x8 a, i16x8 b) {+ const i16x8 I16X8_INT16_MAX = vec_splats((int16_t)INT16_MAX);
+
+ const b16x8 mask = vec_cmpeq(a, I16X8_INT16_MAX);
+
+ const i16x8 val = vec_sel(a, b, mask);
+
+ return vec_max(val, b);
+}
+
+#define LOAD_PIX(addr) \
+ const i16x8 px = (i16x8)vec_vsx_ld(0, addr); \
+ i16x8 max = px; \
+ i16x8 min = px; \
+ i16x8 sum = vec_splat_s16(0);
+
+#define LOAD_PIX4(addr) \
+ const i16x8 a = (i16x8)vec_vsx_ld(0, addr); \
+ const i16x8 b = (i16x8)vec_vsx_ld(0, addr + tmp_stride); \
+ const i16x8 px = vec_xxpermdi(a, b, 0); \
+ i16x8 max = px; \
+ i16x8 min = px; \
+ i16x8 sum = vec_splat_s16(0);
+
+#define LOAD_DIR(p, addr, o0, o1) \
+ const i16x8 p ## 0 = (i16x8)vec_vsx_ld(0, addr + o0); \
+ const i16x8 p ## 1 = (i16x8)vec_vsx_ld(0, addr - o0); \
+ const i16x8 p ## 2 = (i16x8)vec_vsx_ld(0, addr + o1); \
+ const i16x8 p ## 3 = (i16x8)vec_vsx_ld(0, addr - o1);
+
+#define LOAD_DIR4(p, addr, o0, o1) \
+ LOAD_DIR(p ## a, addr, o0, o1) \
+ LOAD_DIR(p ## b, addr + tmp_stride, o0, o1) \
+ const i16x8 p ## 0 = vec_xxpermdi(p ## a ## 0, p ## b ## 0, 0); \
+ const i16x8 p ## 1 = vec_xxpermdi(p ## a ## 1, p ## b ## 1, 0); \
+ const i16x8 p ## 2 = vec_xxpermdi(p ## a ## 2, p ## b ## 2, 0); \
+ const i16x8 p ## 3 = vec_xxpermdi(p ## a ## 3, p ## b ## 3, 0);
+
+#define CONSTRAIN(p, strength) \
+ const i16x8 p ## _d0 = vec_sub(p ## 0, px); \
+ const i16x8 p ## _d1 = vec_sub(p ## 1, px); \
+ const i16x8 p ## _d2 = vec_sub(p ## 2, px); \
+ const i16x8 p ## _d3 = vec_sub(p ## 3, px); \
+\
+ i16x8 p ## _c0 = vconstrain(p ## _d0, strength, damping); \
+ i16x8 p ## _c1 = vconstrain(p ## _d1, strength, damping); \
+ i16x8 p ## _c2 = vconstrain(p ## _d2, strength, damping); \
+ i16x8 p ## _c3 = vconstrain(p ## _d3, strength, damping);
+
+#define MIN_MAX(p) \
+ max = max_mask(p ## 0, max); \
+ min = vec_min(p ## 0, min); \
+ max = max_mask(p ## 1, max); \
+ min = vec_min(p ## 1, min); \
+ max = max_mask(p ## 2, max); \
+ min = vec_min(p ## 2, min); \
+ max = max_mask(p ## 3, max); \
+ min = vec_min(p ## 3, min);
+
+#define PRI_0(p) \
+ p ## _c0 = vec_add(vec_sl(p ## _c0, vec_splat_u16(1)), vec_sl(p ## _c0, vec_splats(tap_even))); \
+ p ## _c1 = vec_add(vec_sl(p ## _c1, vec_splat_u16(1)), vec_sl(p ## _c1, vec_splats(tap_even)));
+
+#define PRI_1(p) \
+ p ## _c2 = vec_sub(vec_sl(p ## _c2, vec_splat_u16(2)), vec_sl(p ## _c2, vec_splats(tap_even))); \
+ p ## _c3 = vec_sub(vec_sl(p ## _c3, vec_splat_u16(2)), vec_sl(p ## _c3, vec_splats(tap_even)));
+
+#define SEC_0(p) \
+ p ## _c0 = vec_sl(p ## _c0, vec_splat_u16(1)); \
+ p ## _c1 = vec_sl(p ## _c1, vec_splat_u16(1)); \
+ p ## _c2 = vec_sl(p ## _c2, vec_splat_u16(1)); \
+ p ## _c3 = vec_sl(p ## _c3, vec_splat_u16(1));
+
+#define UPDATE_SUM(p) \
+ const i16x8 p ## sum0 = vec_add(p ## _c0, p ## _c1); \
+ const i16x8 p ## sum1 = vec_add(p ## _c2, p ## _c3); \
+ sum = vec_add(sum, p ## sum0); \
+ sum = vec_add(sum, p ## sum1);
+
+static inline void
+filter_4xN(pixel *dst, const ptrdiff_t dst_stride,
+ const pixel (*left)[2], /*const*/ pixel *const top[2],
+ const int w, const int h, const int pri_strength,
+ const int sec_strength, const int dir,
+ const int damping, const enum CdefEdgeFlags edges,
+ const ptrdiff_t tmp_stride, uint16_t *tmp)
+{+ const int8_t cdef_directions[8 /* dir */][2 /* pass */] = {+ { -1 * tmp_stride + 1, -2 * tmp_stride + 2 },+ { 0 * tmp_stride + 1, -1 * tmp_stride + 2 },+ { 0 * tmp_stride + 1, 0 * tmp_stride + 2 },+ { 0 * tmp_stride + 1, 1 * tmp_stride + 2 },+ { 1 * tmp_stride + 1, 2 * tmp_stride + 2 },+ { 1 * tmp_stride + 0, 2 * tmp_stride + 1 },+ { 1 * tmp_stride + 0, 2 * tmp_stride + 0 },+ { 1 * tmp_stride + 0, 2 * tmp_stride - 1 }+ };
+ const int bitdepth_min_8 = bitdepth_from_max(bitdepth_max) - 8;
+ const uint16_t tap_even = !((pri_strength >> bitdepth_min_8) & 1);
+ const int off1 = cdef_directions[dir][0];
+ const int off1_1 = cdef_directions[dir][1];
+
+ const int off2 = cdef_directions[(dir + 2) & 7][0];
+ const int off3 = cdef_directions[(dir + 6) & 7][0];
+
+ const int off2_1 = cdef_directions[(dir + 2) & 7][1];
+ const int off3_1 = cdef_directions[(dir + 6) & 7][1];
+
+
+ copy4xN(tmp - 2, tmp_stride, dst, dst_stride, left, top, w, h, edges);
+ for (int y = 0; y < h / 2; y++) {+ LOAD_PIX4(tmp)
+
+ // Primary pass
+ LOAD_DIR4(p, tmp, off1, off1_1)
+
+ CONSTRAIN(p, pri_strength)
+
+ MIN_MAX(p)
+
+ PRI_0(p)
+ PRI_1(p)
+
+ UPDATE_SUM(p)
+
+ // Secondary pass 1
+ LOAD_DIR4(s, tmp, off2, off3)
+
+ CONSTRAIN(s, sec_strength)
+
+ MIN_MAX(s)
+
+ SEC_0(s)
+
+ UPDATE_SUM(s)
+
+ // Secondary pass 2
+ LOAD_DIR4(s2, tmp, off2_1, off3_1)
+
+ CONSTRAIN(s2, sec_strength)
+
+ MIN_MAX(s2)
+
+ UPDATE_SUM(s2)
+
+ // Store
+ i16x8 bias = vec_and((i16x8)vec_cmplt(sum, vec_splat_s16(0)), vec_splat_s16(1));
+ bias = vec_sub(vec_splat_s16(8), bias);
+ i16x8 unclamped = vec_add(px, vec_sra(vec_add(sum, bias), vec_splat_u16(4)));
+ i16x8 vdst = vec_max(vec_min(unclamped, max), min);
+
+ dst[0] = vdst[0];
+ dst[1] = vdst[1];
+ dst[2] = vdst[2];
+ dst[3] = vdst[3];
+
+ tmp += tmp_stride;
+ dst += PXSTRIDE(dst_stride);
+ dst[0] = vdst[4];
+ dst[1] = vdst[5];
+ dst[2] = vdst[6];
+ dst[3] = vdst[7];
+
+ tmp += tmp_stride;
+ dst += PXSTRIDE(dst_stride);
+ }
+}
+
+static inline void
+filter_8xN(pixel *dst, const ptrdiff_t dst_stride,
+ const pixel (*left)[2], /*const*/ pixel *const top[2],
+ const int w, const int h, const int pri_strength,
+ const int sec_strength, const int dir,
+ const int damping, const enum CdefEdgeFlags edges,
+ const ptrdiff_t tmp_stride, uint16_t *tmp)
+{+ const int8_t cdef_directions[8 /* dir */][2 /* pass */] = {+ { -1 * tmp_stride + 1, -2 * tmp_stride + 2 },+ { 0 * tmp_stride + 1, -1 * tmp_stride + 2 },+ { 0 * tmp_stride + 1, 0 * tmp_stride + 2 },+ { 0 * tmp_stride + 1, 1 * tmp_stride + 2 },+ { 1 * tmp_stride + 1, 2 * tmp_stride + 2 },+ { 1 * tmp_stride + 0, 2 * tmp_stride + 1 },+ { 1 * tmp_stride + 0, 2 * tmp_stride + 0 },+ { 1 * tmp_stride + 0, 2 * tmp_stride - 1 }+ };
+ const int bitdepth_min_8 = bitdepth_from_max(bitdepth_max) - 8;
+
+
+ const uint16_t tap_even = !((pri_strength >> bitdepth_min_8) & 1);
+ const int off1 = cdef_directions[dir][0];
+ const int off1_1 = cdef_directions[dir][1];
+
+ const int off2 = cdef_directions[(dir + 2) & 7][0];
+ const int off3 = cdef_directions[(dir + 6) & 7][0];
+
+ const int off2_1 = cdef_directions[(dir + 2) & 7][1];
+ const int off3_1 = cdef_directions[(dir + 6) & 7][1];
+
+ copy8xN(tmp - 2, tmp_stride, dst, dst_stride, left, top, w, h, edges);
+
+ for (int y = 0; y < h; y++) {+ LOAD_PIX(tmp)
+
+ // Primary pass
+ LOAD_DIR(p, tmp, off1, off1_1)
+
+ CONSTRAIN(p, pri_strength)
+
+ MIN_MAX(p)
+
+ PRI_0(p)
+ PRI_1(p)
+
+ UPDATE_SUM(p)
+
+ // Secondary pass 1
+ LOAD_DIR(s, tmp, off2, off3)
+
+ CONSTRAIN(s, sec_strength)
+
+ MIN_MAX(s)
+
+ SEC_0(s)
+
+ UPDATE_SUM(s)
+
+ // Secondary pass 2
+ LOAD_DIR(s2, tmp, off2_1, off3_1)
+
+ CONSTRAIN(s2, sec_strength)
+
+ MIN_MAX(s2)
+
+ UPDATE_SUM(s2)
+
+ // Store
+ i16x8 bias = vec_and((i16x8)vec_cmplt(sum, vec_splat_s16(0)), vec_splat_s16(1));
+ bias = vec_sub(vec_splat_s16(8), bias);
+ i16x8 unclamped = vec_add(px, vec_sra(vec_add(sum, bias), vec_splat_u16(4)));
+ i16x8 vdst = vec_max(vec_min(unclamped, max), min);
+
+ dst[0] = vdst[0];
+ dst[1] = vdst[1];
+ dst[2] = vdst[2];
+ dst[3] = vdst[3];
+ dst[4] = vdst[4];
+ dst[5] = vdst[5];
+ dst[6] = vdst[6];
+ dst[7] = vdst[7];
+
+ tmp += tmp_stride;
+ dst += PXSTRIDE(dst_stride);
+ }
+
+}
+
+
+#define cdef_fn(w, h, tmp_stride) \
+static void cdef_filter_##w##x##h##_vsx(pixel *const dst, \
+ const ptrdiff_t dst_stride, \
+ const pixel (*left)[2], \
+ /*const*/ pixel *const top[2], \
+ const int pri_strength, \
+ const int sec_strength, \
+ const int dir, \
+ const int damping, \
+ const enum CdefEdgeFlags edges) \
+{ \+ ALIGN_STK_16(uint16_t, tmp_buf, 12 * tmp_stride,); \
+ uint16_t *tmp = tmp_buf + 2 * tmp_stride + 2; \
+ filter_##w##xN(dst, dst_stride, left, top, w, h, pri_strength, sec_strength, \
+ dir, damping, edges, tmp_stride, tmp); \
+}
+
+cdef_fn(4, 4, 8);
+cdef_fn(4, 8, 8);
+cdef_fn(8, 8, 16);
+#endif
+
+COLD void bitfn(dav1d_cdef_dsp_init_ppc)(Dav1dCdefDSPContext *const c) {+ const unsigned flags = dav1d_get_cpu_flags();
+
+ if (!(flags & DAV1D_PPC_CPU_FLAG_VSX)) return;
+
+#if BITDEPTH == 8
+ // c->dir = dav1d_cdef_find_dir_vsx;
+ c->fb[0] = cdef_filter_8x8_vsx;
+ c->fb[1] = cdef_filter_4x8_vsx;
+ c->fb[2] = cdef_filter_4x4_vsx;
+#endif
+}