| Message ID | 20220907062641.23091-1-bin.wang@intel.com |
|---|---|
| State | New |
| Headers | show |
| Series | [FFmpeg-devel,v4] libavfilter/x86/vf_convolution: add sobel filter optimization and unit test with intel AVX512 VNNI | expand |
| Context | Check | Description |
|---|---|---|
| andriy/make_x86 | success | Make finished |
| andriy/make_fate_x86 | success | Make fate finished |
-----Original Message----- From: Wang, Bin <bin.wang@intel.com> Sent: Wednesday, September 7, 2022 2:27 PM To: ffmpeg-devel@ffmpeg.org Cc: Wang, Bin <bin.wang@intel.com> Subject: [FFmpeg-devel] [PATCH v4] libavfilter/x86/vf_convolution: add sobel filter optimization and unit test with intel AVX512 VNNI From: bwang30 <bin.wang@intel.com> This commit enabled assembly code with intel AVX512 VNNI and added unit test for sobel filter sobel_c: 4537 sobel_avx512icl 2136 Signed-off-by: bwang30 <bin.wang@intel.com> --- libavfilter/convolution.h | 2 + libavfilter/vf_convolution.c | 23 ++++ libavfilter/x86/vf_convolution.asm | 150 ++++++++++++++++++++++++++ libavfilter/x86/vf_convolution_init.c | 18 ++++ tests/checkasm/Makefile | 1 + tests/checkasm/checkasm.c | 3 + tests/checkasm/checkasm.h | 1 + tests/checkasm/vf_convolution.c | 103 ++++++++++++++++++ 8 files changed, 301 insertions(+) create mode 100644 tests/checkasm/vf_convolution.c diff --git a/libavfilter/convolution.h b/libavfilter/convolution.h index 88aabe9a20..4520ad13e0 100644 --- a/libavfilter/convolution.h +++ b/libavfilter/convolution.h @@ -61,4 +61,6 @@ typedef struct ConvolutionContext { } ConvolutionContext; void ff_convolution_init_x86(ConvolutionContext *s); +void ff_sobel_init_x86(ConvolutionContext *s); void +ff_convolution_init(ConvolutionContext *s, const char *filter_name); #endif diff --git a/libavfilter/vf_convolution.c b/libavfilter/vf_convolution.c index 9a9c099e6d..0eeaaa9fc3 100644 --- a/libavfilter/vf_convolution.c +++ b/libavfilter/vf_convolution.c @@ -874,6 +874,9 @@ static int param_init(AVFilterContext *ctx) if (s->depth > 8) for (p = 0; p < s->nb_planes; p++) s->filter[p] = filter16_sobel; +#if CONFIG_CONVOLUTION_FILTER && ARCH_X86_64 + ff_sobel_init_x86(s); +#endif } else if (!strcmp(ctx->filter->name, "kirsch")) { if (s->depth > 8) for (p = 0; p < s->nb_planes; p++) @@ -887,6 +890,26 @@ static int param_init(AVFilterContext *ctx) return 0; } +void ff_convolution_init(ConvolutionContext *s, const char +*filter_name) { + if (!strcmp(filter_name, "sobel")) { + for (int i = 0; i < 4; i++) { + s->filter[i] = filter_sobel; + s->copy[i] = !((1 << i) & s->planes); + s->size[i] = 3; + s->setup[i] = setup_3x3; + s->rdiv[i] = s->scale; + s->bias[i] = s->delta; + } + if (s->depth > 8) + for (int i = 0; i < 4; i++) + s->filter[i] = filter16_sobel; #if +CONFIG_CONVOLUTION_FILTER && ARCH_X86_64 + ff_sobel_init_x86(s); +#endif + } +} + static int config_input(AVFilterLink *inlink) { AVFilterContext *ctx = inlink->dst; diff --git a/libavfilter/x86/vf_convolution.asm b/libavfilter/x86/vf_convolution.asm index 754d4d1064..a95d5ad499 100644 --- a/libavfilter/x86/vf_convolution.asm +++ b/libavfilter/x86/vf_convolution.asm @@ -22,6 +22,18 @@ SECTION_RODATA half: dd 0.5 +data_p1: dd 1 +data_n1: dd -1 +data_p2: dd 2 +data_n2: dd -2 + +ALIGN 64 +sobel_perm: db 0, 16, 32, 48, 1, 17, 33, 49, 2, 18, 34, 50, 3, 19, 35, 51 + db 4, 20, 36, 52, 5, 21, 37, 53, 6, 22, 38, 54, 7, 23, 39, 55 + db 8, 24, 40, 56, 9, 25, 41, 57, 10, 26, 42, 58, 11, 27, 43, 59 + db 12, 28, 44, 60, 13, 29, 45, 61, 14, 30, 46, 62, 15, 31, +47, 63 +sobel_mulA: db -1, 1, -2, 2 +sobel_mulB: db 1, -1, 2, -2 SECTION .text @@ -154,3 +166,141 @@ cglobal filter_3x3, 4, 15, 7, dst, width, rdiv, bias, matrix, ptr, c0, c1, c2, c INIT_XMM sse4 FILTER_3X3 %endif + +%macro SOBEL_MUL 2 + movzx ptrd, byte [c%1q + xq] + imul ptrd, [%2] + add rd, ptrd +%endmacro + +%macro SOBEL_ADD 1 + movzx ptrd, byte [c%1q + xq] + add rd, ptrd +%endmacro + +; void filter_sobel_avx512(uint8_t *dst, int width, +; float scale, float delta, const int *const matrix, +; const uint8_t *c[], int peak, int radius, +; int dstride, int stride) +%macro FILTER_SOBEL 0 +%if UNIX64 +cglobal filter_sobel, 4, 15, 7, dst, width, matrix, ptr, c0, c1, c2, +c3, c4, c5, c6, c7, c8, r, x %else cglobal filter_sobel, 4, 15, 7, dst, +width, rdiv, bias, matrix, ptr, c0, c1, c2, c3, c4, c5, c6, c7, c8, r, +x %endif %if WIN64 + SWAP xmm0, xmm2 + SWAP xmm1, xmm3 + mov r2q, matrixmp + mov r3q, ptrmp + DEFINE_ARGS dst, width, matrix, ptr, c0, c1, c2, c3, c4, c5, c6, +c7, c8, r, x %endif + movsxdifnidn widthq, widthd + VBROADCASTSS m0, xmm0 + VBROADCASTSS m1, xmm1 + pxor m6, m6 + mov c0q, [ptrq + 0*gprsize] + mov c1q, [ptrq + 1*gprsize] + mov c2q, [ptrq + 2*gprsize] + mov c3q, [ptrq + 3*gprsize] + mov c4q, [ptrq + 4*gprsize] + mov c5q, [ptrq + 5*gprsize] + mov c6q, [ptrq + 6*gprsize] + mov c7q, [ptrq + 7*gprsize] + mov c8q, [ptrq + 8*gprsize] + + xor xq, xq + cmp widthq, mmsize/4 + jl .loop2 + + mov rq, widthq + and rq, mmsize/4-1 + sub widthq, rq + + mova m6, [sobel_perm] +.loop1: + pxor m4, m4 + pxor m5, m5 + + movu xm3, [c2q + xq] + pmovzxbd m5, [c0q + xq] + vinserti32x4 ym3, [c6q + xq], 1 + pmovzxbd m4, [c8q + xq] + vinserti32x4 m2, m3, [c1q + xq], 2 + vinserti32x4 m3, [c5q + xq], 2 + vinserti32x4 m2, [c7q + xq], 3 + vinserti32x4 m3, [c3q + xq], 3 + vpermb m2, m6, m2 + psubd m4, m5 + vpermb m3, m6, m3 + mova m5, m4 + vpdpbusd m4, m2, [sobel_mulA] {1to16} + vpdpbusd m5, m3, [sobel_mulB] {1to16} + + cvtdq2ps m4, m4 + mulps m4, m4 + + cvtdq2ps m5, m5 + VFMADD231PS m4, m5, m5 + + sqrtps m4, m4 + fmaddps m4, m4, m0, m1 + cvttps2dq m4, m4 + vpmovusdb [dstq + xq], m4 + + add xq, mmsize/4 + cmp xq, widthq + jl .loop1 + + add widthq, rq + cmp xq, widthq + jge .end + +.loop2: + xor rd, rd + pxor m4, m4 + + ;Gx + SOBEL_MUL 0, data_n1 + SOBEL_MUL 1, data_n2 + SOBEL_MUL 2, data_n1 + SOBEL_ADD 6 + SOBEL_MUL 7, data_p2 + SOBEL_ADD 8 + + cvtsi2ss xmm4, rd + mulss xmm4, xmm4 + + xor rd, rd + ;Gy + SOBEL_MUL 0, data_n1 + SOBEL_ADD 2 + SOBEL_MUL 3, data_n2 + SOBEL_MUL 5, data_p2 + SOBEL_MUL 6, data_n1 + SOBEL_ADD 8 + + cvtsi2ss xmm5, rd + fmaddss xmm4, xmm5, xmm5, xmm4 + + sqrtps xmm4, xmm4 + fmaddss xmm4, xmm4, xmm0, xmm1 ;sum = sum * rdiv + bias + cvttps2dq xmm4, xmm4 ; trunc to integer + packssdw xmm4, xmm4 + packuswb xmm4, xmm4 + movd rd, xmm4 + mov [dstq + xq], rb + + add xq, 1 + cmp xq, widthq + jl .loop2 +.end: + RET +%endmacro + +%if ARCH_X86_64 +%if HAVE_AVX512ICL_EXTERNAL +INIT_ZMM avx512icl +FILTER_SOBEL +%endif +%endif diff --git a/libavfilter/x86/vf_convolution_init.c b/libavfilter/x86/vf_convolution_init.c index b78a47d02b..52a3d28991 100644 --- a/libavfilter/x86/vf_convolution_init.c +++ b/libavfilter/x86/vf_convolution_init.c @@ -29,6 +29,11 @@ void ff_filter_3x3_sse4(uint8_t *dst, int width, const uint8_t *c[], int peak, int radius, int dstride, int stride, int size); +void ff_filter_sobel_avx512icl(uint8_t *dst, int width, + float scale, float delta, const int *const matrix, + const uint8_t *c[], int peak, int radius, + int dstride, int stride, int size); + av_cold void ff_convolution_init_x86(ConvolutionContext *s) { #if ARCH_X86_64 @@ -44,3 +49,16 @@ av_cold void ff_convolution_init_x86(ConvolutionContext *s) } #endif } + +av_cold void ff_sobel_init_x86(ConvolutionContext *s) { #if ARCH_X86_64 + int cpu_flags = av_get_cpu_flags(); + for (int i = 0; i < s->nb_planes; i++) { + if (s->depth == 8) { + if (EXTERNAL_AVX512ICL(cpu_flags)) + s->filter[i] = ff_filter_sobel_avx512icl; + } + } +#endif +} diff --git a/tests/checkasm/Makefile b/tests/checkasm/Makefile index 1ac170491b..4e91547fde 100644 --- a/tests/checkasm/Makefile +++ b/tests/checkasm/Makefile @@ -44,6 +44,7 @@ AVFILTEROBJS-$(CONFIG_GBLUR_FILTER) += vf_gblur.o AVFILTEROBJS-$(CONFIG_HFLIP_FILTER) += vf_hflip.o AVFILTEROBJS-$(CONFIG_THRESHOLD_FILTER) += vf_threshold.o AVFILTEROBJS-$(CONFIG_NLMEANS_FILTER) += vf_nlmeans.o +AVFILTEROBJS-$(CONFIG_CONVOLUTION_FILTER) += vf_convolution.o CHECKASMOBJS-$(CONFIG_AVFILTER) += $(AVFILTEROBJS-yes) diff --git a/tests/checkasm/checkasm.c b/tests/checkasm/checkasm.c index e56fd3850e..ae5e9d1143 100644 --- a/tests/checkasm/checkasm.c +++ b/tests/checkasm/checkasm.c @@ -191,6 +191,9 @@ static const struct { #if CONFIG_THRESHOLD_FILTER { "vf_threshold", checkasm_check_vf_threshold }, #endif + #if CONFIG_CONVOLUTION_FILTER + { "vf_convolution", checkasm_check_vf_convolution }, + #endif #endif #if CONFIG_SWSCALE { "sw_gbrp", checkasm_check_sw_gbrp }, diff --git a/tests/checkasm/checkasm.h b/tests/checkasm/checkasm.h index d7645d3730..71c722cf77 100644 --- a/tests/checkasm/checkasm.h +++ b/tests/checkasm/checkasm.h @@ -85,6 +85,7 @@ void checkasm_check_vf_eq(void); void checkasm_check_vf_gblur(void); void checkasm_check_vf_hflip(void); void checkasm_check_vf_threshold(void); +void checkasm_check_vf_convolution(void); void checkasm_check_vp8dsp(void); void checkasm_check_vp9dsp(void); void checkasm_check_videodsp(void); diff --git a/tests/checkasm/vf_convolution.c b/tests/checkasm/vf_convolution.c new file mode 100644 index 0000000000..a10da8b45e --- /dev/null +++ b/tests/checkasm/vf_convolution.c @@ -0,0 +1,103 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License +along + * with FFmpeg; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include <string.h> +#include "checkasm.h" +#include "libavfilter/avfilter.h" +#include "libavfilter/convolution.h" +#include "libavutil/intreadwrite.h" +#include "libavutil/mem_internal.h" + +#define WIDTH 512 +#define HEIGHT 512 +#define SRC_STRIDE 512 +#define PIXELS (WIDTH * HEIGHT) + +#define randomize_buffers(buf, size) \ + do { \ + int j; \ + uint8_t *tmp_buf = (uint8_t *)buf;\ + for (j = 0; j< size; j++) \ + tmp_buf[j] = rnd() & 0xFF; \ + } while (0) + +static void check_sobel(const char * report_name) { + LOCAL_ALIGNED_32(uint8_t, src, [PIXELS]); + LOCAL_ALIGNED_32(uint8_t, dst_ref, [PIXELS]); + LOCAL_ALIGNED_32(uint8_t, dst_new, [PIXELS]); + const int height = WIDTH; + const int width = HEIGHT; + const int stride = SRC_STRIDE; + const int dstride = SRC_STRIDE; + int mode = 0; + const uint8_t *c[49]; + const int radius = 1; + const int bpc = 1; + const int step = mode == MATRIX_COLUMN ? 16 : 1; + const int slice_start = 0; + const int slice_end = height; + int y; + const int sizew = mode == MATRIX_COLUMN ? height : width; + float scale = 2; + float delta = 10; + + ConvolutionContext s; + + s.scale = scale; + s.delta = delta; + s.depth = 8; + s.nb_planes = 3; + ff_convolution_init(&s, "sobel"); + + declare_func(void, uint8_t *dst, int width, float scale, float delta, const int *const matrix, + const uint8_t *c[], int peak, int radius, int dstride, + int stride, int size); + + memset(dst_ref, 0, PIXELS); + memset(dst_new, 0, PIXELS); + randomize_buffers(src, PIXELS); + + if (check_func(s.filter[0], "%s", report_name)) { + for (y = slice_start; y < slice_end; y += step) { + const int xoff = mode == MATRIX_COLUMN ? (y - slice_start) * bpc : radius * bpc; + const int yoff = mode == MATRIX_COLUMN ? radius * dstride : + 0; + + s.setup[0](radius, c, src, stride, radius, width, y, height, bpc); + call_ref(dst_ref + yoff + xoff, sizew - 2 * radius, + scale, delta, NULL, c, 0, radius, + dstride, stride, slice_end - step); + call_new(dst_new + yoff + xoff, sizew - 2 * radius, + scale, delta, NULL, c, 0, radius, + dstride, stride, slice_end - step); + if (memcmp(dst_ref + yoff + xoff, dst_new + yoff + xoff, slice_end - step)) + fail(); + bench_new(dst_new + yoff + xoff, sizew - 2 * radius, + scale, delta, NULL, c, 0, radius, + dstride, stride, slice_end - step); + if (mode != MATRIX_COLUMN) + dst_ref += dstride; + } + } + +} + +void checkasm_check_vf_convolution(void) +{ + check_sobel("sobel"); + report("convolution:sobel"); +} -- 2.27.0 Any new comments on this patch v4, compared with patch v3, I achieved a 13% improvement with Henrik's great suggestion. Thanks Bin
On Wed, Sep 7, 2022 at 8:47 AM <bin.wang-at-intel.com@ffmpeg.org> wrote: > +.loop1: > + pxor m4, m4 > + pxor m5, m5 Those zero-initializations are redundant. Aside from that the asm LGTM.
bin.wang-at-intel.com@ffmpeg.org: > From: bwang30 <bin.wang@intel.com> > > This commit enabled assembly code with intel AVX512 VNNI and added unit test for sobel filter > > sobel_c: 4537 > sobel_avx512icl 2136 > > Signed-off-by: bwang30 <bin.wang@intel.com> > --- > libavfilter/convolution.h | 2 + > libavfilter/vf_convolution.c | 23 ++++ > libavfilter/x86/vf_convolution.asm | 150 ++++++++++++++++++++++++++ > libavfilter/x86/vf_convolution_init.c | 18 ++++ > tests/checkasm/Makefile | 1 + > tests/checkasm/checkasm.c | 3 + > tests/checkasm/checkasm.h | 1 + > tests/checkasm/vf_convolution.c | 103 ++++++++++++++++++ > 8 files changed, 301 insertions(+) > create mode 100644 tests/checkasm/vf_convolution.c > > diff --git a/libavfilter/convolution.h b/libavfilter/convolution.h > index 88aabe9a20..4520ad13e0 100644 > --- a/libavfilter/convolution.h > +++ b/libavfilter/convolution.h > @@ -61,4 +61,6 @@ typedef struct ConvolutionContext { > } ConvolutionContext; > > void ff_convolution_init_x86(ConvolutionContext *s); > +void ff_sobel_init_x86(ConvolutionContext *s); > +void ff_convolution_init(ConvolutionContext *s, const char *filter_name); > #endif > diff --git a/libavfilter/vf_convolution.c b/libavfilter/vf_convolution.c > index 9a9c099e6d..0eeaaa9fc3 100644 > --- a/libavfilter/vf_convolution.c > +++ b/libavfilter/vf_convolution.c > @@ -874,6 +874,9 @@ static int param_init(AVFilterContext *ctx) > if (s->depth > 8) > for (p = 0; p < s->nb_planes; p++) > s->filter[p] = filter16_sobel; > +#if CONFIG_CONVOLUTION_FILTER && ARCH_X86_64 > + ff_sobel_init_x86(s); > +#endif > } else if (!strcmp(ctx->filter->name, "kirsch")) { > if (s->depth > 8) > for (p = 0; p < s->nb_planes; p++) > @@ -887,6 +890,26 @@ static int param_init(AVFilterContext *ctx) > return 0; > } > > +void ff_convolution_init(ConvolutionContext *s, const char *filter_name) > +{ > + if (!strcmp(filter_name, "sobel")) { > + for (int i = 0; i < 4; i++) { > + s->filter[i] = filter_sobel; > + s->copy[i] = !((1 << i) & s->planes); > + s->size[i] = 3; > + s->setup[i] = setup_3x3; > + s->rdiv[i] = s->scale; > + s->bias[i] = s->delta; > + } > + if (s->depth > 8) > + for (int i = 0; i < 4; i++) > + s->filter[i] = filter16_sobel; > +#if CONFIG_CONVOLUTION_FILTER && ARCH_X86_64 > + ff_sobel_init_x86(s); > +#endif > + } > +} The way you are doing this here has two downsides: 1. You are duplicating the sobel init code, so that the two might diverge. 2. ff_convolution_init will exist in vf_convolution.o and even in the binary (unless one uses -ffunction-sections) although it is only used for checkasm. 3. It will make checkasm pull vf_convolution.o in. This will in turn pull all of libavfilter, libavformat and libavcodec in, which is bad in itself and will trigger an issue for MSVC shared builds: checkasm links statically to all libraries (because it needs to access their internals), but the code expected avpriv_cga_font and avpriv_vga16_font to be coming from a different dll, which led to linking failures. The current code splits configuration into two filter-specific phases with filter-agnostic initialization inbetween. I don't see any reason why this is so (it duplicates the checks for nothing); the filter-agnostic initialization can just be performed at the beginning of param_init(), so that the actual filter configuration is one contiguous block. The sobel block could then be moved to a small inline function in vf_convolution.h. > + > static int config_input(AVFilterLink *inlink) > { > AVFilterContext *ctx = inlink->dst; > diff --git a/libavfilter/x86/vf_convolution.asm b/libavfilter/x86/vf_convolution.asm > index 754d4d1064..a95d5ad499 100644 > --- a/libavfilter/x86/vf_convolution.asm > +++ b/libavfilter/x86/vf_convolution.asm > @@ -22,6 +22,18 @@ > > SECTION_RODATA > half: dd 0.5 > +data_p1: dd 1 > +data_n1: dd -1 > +data_p2: dd 2 > +data_n2: dd -2 > + > +ALIGN 64 > +sobel_perm: db 0, 16, 32, 48, 1, 17, 33, 49, 2, 18, 34, 50, 3, 19, 35, 51 > + db 4, 20, 36, 52, 5, 21, 37, 53, 6, 22, 38, 54, 7, 23, 39, 55 > + db 8, 24, 40, 56, 9, 25, 41, 57, 10, 26, 42, 58, 11, 27, 43, 59 > + db 12, 28, 44, 60, 13, 29, 45, 61, 14, 30, 46, 62, 15, 31, 47, 63 > +sobel_mulA: db -1, 1, -2, 2 > +sobel_mulB: db 1, -1, 2, -2 > > SECTION .text > > @@ -154,3 +166,141 @@ cglobal filter_3x3, 4, 15, 7, dst, width, rdiv, bias, matrix, ptr, c0, c1, c2, c > INIT_XMM sse4 > FILTER_3X3 > %endif > + > +%macro SOBEL_MUL 2 > + movzx ptrd, byte [c%1q + xq] > + imul ptrd, [%2] > + add rd, ptrd > +%endmacro > + > +%macro SOBEL_ADD 1 > + movzx ptrd, byte [c%1q + xq] > + add rd, ptrd > +%endmacro > + > +; void filter_sobel_avx512(uint8_t *dst, int width, > +; float scale, float delta, const int *const matrix, > +; const uint8_t *c[], int peak, int radius, > +; int dstride, int stride) > +%macro FILTER_SOBEL 0 > +%if UNIX64 > +cglobal filter_sobel, 4, 15, 7, dst, width, matrix, ptr, c0, c1, c2, c3, c4, c5, c6, c7, c8, r, x > +%else > +cglobal filter_sobel, 4, 15, 7, dst, width, rdiv, bias, matrix, ptr, c0, c1, c2, c3, c4, c5, c6, c7, c8, r, x > +%endif > +%if WIN64 > + SWAP xmm0, xmm2 > + SWAP xmm1, xmm3 > + mov r2q, matrixmp > + mov r3q, ptrmp > + DEFINE_ARGS dst, width, matrix, ptr, c0, c1, c2, c3, c4, c5, c6, c7, c8, r, x > +%endif > + movsxdifnidn widthq, widthd > + VBROADCASTSS m0, xmm0 > + VBROADCASTSS m1, xmm1 > + pxor m6, m6 > + mov c0q, [ptrq + 0*gprsize] > + mov c1q, [ptrq + 1*gprsize] > + mov c2q, [ptrq + 2*gprsize] > + mov c3q, [ptrq + 3*gprsize] > + mov c4q, [ptrq + 4*gprsize] > + mov c5q, [ptrq + 5*gprsize] > + mov c6q, [ptrq + 6*gprsize] > + mov c7q, [ptrq + 7*gprsize] > + mov c8q, [ptrq + 8*gprsize] > + > + xor xq, xq > + cmp widthq, mmsize/4 > + jl .loop2 > + > + mov rq, widthq > + and rq, mmsize/4-1 > + sub widthq, rq > + > + mova m6, [sobel_perm] > +.loop1: > + pxor m4, m4 > + pxor m5, m5 > + > + movu xm3, [c2q + xq] > + pmovzxbd m5, [c0q + xq] > + vinserti32x4 ym3, [c6q + xq], 1 > + pmovzxbd m4, [c8q + xq] > + vinserti32x4 m2, m3, [c1q + xq], 2 > + vinserti32x4 m3, [c5q + xq], 2 > + vinserti32x4 m2, [c7q + xq], 3 > + vinserti32x4 m3, [c3q + xq], 3 > + vpermb m2, m6, m2 > + psubd m4, m5 > + vpermb m3, m6, m3 > + mova m5, m4 > + vpdpbusd m4, m2, [sobel_mulA] {1to16} > + vpdpbusd m5, m3, [sobel_mulB] {1to16} > + > + cvtdq2ps m4, m4 > + mulps m4, m4 > + > + cvtdq2ps m5, m5 > + VFMADD231PS m4, m5, m5 > + > + sqrtps m4, m4 > + fmaddps m4, m4, m0, m1 > + cvttps2dq m4, m4 > + vpmovusdb [dstq + xq], m4 > + > + add xq, mmsize/4 > + cmp xq, widthq > + jl .loop1 > + > + add widthq, rq > + cmp xq, widthq > + jge .end > + > +.loop2: > + xor rd, rd > + pxor m4, m4 > + > + ;Gx > + SOBEL_MUL 0, data_n1 > + SOBEL_MUL 1, data_n2 > + SOBEL_MUL 2, data_n1 > + SOBEL_ADD 6 > + SOBEL_MUL 7, data_p2 > + SOBEL_ADD 8 > + > + cvtsi2ss xmm4, rd > + mulss xmm4, xmm4 > + > + xor rd, rd > + ;Gy > + SOBEL_MUL 0, data_n1 > + SOBEL_ADD 2 > + SOBEL_MUL 3, data_n2 > + SOBEL_MUL 5, data_p2 > + SOBEL_MUL 6, data_n1 > + SOBEL_ADD 8 > + > + cvtsi2ss xmm5, rd > + fmaddss xmm4, xmm5, xmm5, xmm4 > + > + sqrtps xmm4, xmm4 > + fmaddss xmm4, xmm4, xmm0, xmm1 ;sum = sum * rdiv + bias > + cvttps2dq xmm4, xmm4 ; trunc to integer > + packssdw xmm4, xmm4 > + packuswb xmm4, xmm4 > + movd rd, xmm4 > + mov [dstq + xq], rb > + > + add xq, 1 > + cmp xq, widthq > + jl .loop2 > +.end: > + RET > +%endmacro > + > +%if ARCH_X86_64 > +%if HAVE_AVX512ICL_EXTERNAL > +INIT_ZMM avx512icl > +FILTER_SOBEL > +%endif > +%endif > diff --git a/libavfilter/x86/vf_convolution_init.c b/libavfilter/x86/vf_convolution_init.c > index b78a47d02b..52a3d28991 100644 > --- a/libavfilter/x86/vf_convolution_init.c > +++ b/libavfilter/x86/vf_convolution_init.c > @@ -29,6 +29,11 @@ void ff_filter_3x3_sse4(uint8_t *dst, int width, > const uint8_t *c[], int peak, int radius, > int dstride, int stride, int size); > > +void ff_filter_sobel_avx512icl(uint8_t *dst, int width, > + float scale, float delta, const int *const matrix, > + const uint8_t *c[], int peak, int radius, > + int dstride, int stride, int size); > + > av_cold void ff_convolution_init_x86(ConvolutionContext *s) > { > #if ARCH_X86_64 > @@ -44,3 +49,16 @@ av_cold void ff_convolution_init_x86(ConvolutionContext *s) > } > #endif > } > + > +av_cold void ff_sobel_init_x86(ConvolutionContext *s) > +{ > +#if ARCH_X86_64 > + int cpu_flags = av_get_cpu_flags(); > + for (int i = 0; i < s->nb_planes; i++) { > + if (s->depth == 8) { It is IMO cleaner if you pass depth and nb_planes as parameters to this function (this way, one could more easily factor the function pointers out into a ConvolutionDSPContext). > + if (EXTERNAL_AVX512ICL(cpu_flags)) > + s->filter[i] = ff_filter_sobel_avx512icl; > + } > + } > +#endif > +} > diff --git a/tests/checkasm/Makefile b/tests/checkasm/Makefile > index 1ac170491b..4e91547fde 100644 > --- a/tests/checkasm/Makefile > +++ b/tests/checkasm/Makefile > @@ -44,6 +44,7 @@ AVFILTEROBJS-$(CONFIG_GBLUR_FILTER) += vf_gblur.o > AVFILTEROBJS-$(CONFIG_HFLIP_FILTER) += vf_hflip.o > AVFILTEROBJS-$(CONFIG_THRESHOLD_FILTER) += vf_threshold.o > AVFILTEROBJS-$(CONFIG_NLMEANS_FILTER) += vf_nlmeans.o > +AVFILTEROBJS-$(CONFIG_CONVOLUTION_FILTER) += vf_convolution.o > > CHECKASMOBJS-$(CONFIG_AVFILTER) += $(AVFILTEROBJS-yes) > > diff --git a/tests/checkasm/checkasm.c b/tests/checkasm/checkasm.c > index e56fd3850e..ae5e9d1143 100644 > --- a/tests/checkasm/checkasm.c > +++ b/tests/checkasm/checkasm.c > @@ -191,6 +191,9 @@ static const struct { > #if CONFIG_THRESHOLD_FILTER > { "vf_threshold", checkasm_check_vf_threshold }, > #endif > + #if CONFIG_CONVOLUTION_FILTER > + { "vf_convolution", checkasm_check_vf_convolution }, > + #endif > #endif > #if CONFIG_SWSCALE > { "sw_gbrp", checkasm_check_sw_gbrp }, > diff --git a/tests/checkasm/checkasm.h b/tests/checkasm/checkasm.h > index d7645d3730..71c722cf77 100644 > --- a/tests/checkasm/checkasm.h > +++ b/tests/checkasm/checkasm.h > @@ -85,6 +85,7 @@ void checkasm_check_vf_eq(void); > void checkasm_check_vf_gblur(void); > void checkasm_check_vf_hflip(void); > void checkasm_check_vf_threshold(void); > +void checkasm_check_vf_convolution(void); > void checkasm_check_vp8dsp(void); > void checkasm_check_vp9dsp(void); > void checkasm_check_videodsp(void); > diff --git a/tests/checkasm/vf_convolution.c b/tests/checkasm/vf_convolution.c > new file mode 100644 > index 0000000000..a10da8b45e > --- /dev/null > +++ b/tests/checkasm/vf_convolution.c > @@ -0,0 +1,103 @@ > +/* > + * This file is part of FFmpeg. > + * > + * FFmpeg is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License as published by > + * the Free Software Foundation; either version 2 of the License, or > + * (at your option) any later version. > + * > + * FFmpeg is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License along > + * with FFmpeg; if not, write to the Free Software Foundation, Inc., > + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. > + */ > + > +#include <string.h> > +#include "checkasm.h" > +#include "libavfilter/avfilter.h" > +#include "libavfilter/convolution.h" > +#include "libavutil/intreadwrite.h" > +#include "libavutil/mem_internal.h" > + > +#define WIDTH 512 > +#define HEIGHT 512 > +#define SRC_STRIDE 512 > +#define PIXELS (WIDTH * HEIGHT) > + > +#define randomize_buffers(buf, size) \ > + do { \ > + int j; \ > + uint8_t *tmp_buf = (uint8_t *)buf;\ > + for (j = 0; j< size; j++) \ > + tmp_buf[j] = rnd() & 0xFF; \ > + } while (0) > + > +static void check_sobel(const char * report_name) > +{ > + LOCAL_ALIGNED_32(uint8_t, src, [PIXELS]); > + LOCAL_ALIGNED_32(uint8_t, dst_ref, [PIXELS]); > + LOCAL_ALIGNED_32(uint8_t, dst_new, [PIXELS]); > + const int height = WIDTH; > + const int width = HEIGHT; > + const int stride = SRC_STRIDE; > + const int dstride = SRC_STRIDE; > + int mode = 0; > + const uint8_t *c[49]; > + const int radius = 1; > + const int bpc = 1; > + const int step = mode == MATRIX_COLUMN ? 16 : 1; > + const int slice_start = 0; > + const int slice_end = height; > + int y; > + const int sizew = mode == MATRIX_COLUMN ? height : width; > + float scale = 2; > + float delta = 10; > + > + ConvolutionContext s; > + > + s.scale = scale; > + s.delta = delta; > + s.depth = 8; > + s.nb_planes = 3; > + ff_convolution_init(&s, "sobel"); > + > + declare_func(void, uint8_t *dst, int width, float scale, float delta, const int *const matrix, > + const uint8_t *c[], int peak, int radius, int dstride, int stride, int size); > + > + memset(dst_ref, 0, PIXELS); > + memset(dst_new, 0, PIXELS); > + randomize_buffers(src, PIXELS); > + > + if (check_func(s.filter[0], "%s", report_name)) { > + for (y = slice_start; y < slice_end; y += step) { > + const int xoff = mode == MATRIX_COLUMN ? (y - slice_start) * bpc : radius * bpc; > + const int yoff = mode == MATRIX_COLUMN ? radius * dstride : 0; > + > + s.setup[0](radius, c, src, stride, radius, width, y, height, bpc); > + call_ref(dst_ref + yoff + xoff, sizew - 2 * radius, > + scale, delta, NULL, c, 0, radius, > + dstride, stride, slice_end - step); > + call_new(dst_new + yoff + xoff, sizew - 2 * radius, > + scale, delta, NULL, c, 0, radius, > + dstride, stride, slice_end - step); > + if (memcmp(dst_ref + yoff + xoff, dst_new + yoff + xoff, slice_end - step)) > + fail(); > + bench_new(dst_new + yoff + xoff, sizew - 2 * radius, > + scale, delta, NULL, c, 0, radius, > + dstride, stride, slice_end - step); > + if (mode != MATRIX_COLUMN) > + dst_ref += dstride; > + } > + } > + > +} > + > +void checkasm_check_vf_convolution(void) > +{ > + check_sobel("sobel"); > + report("convolution:sobel"); > +}
Thanks for the review, based on the comments, patch v5 is sent out: https://patchwork.ffmpeg.org/project/ffmpeg/patch/20220920103305.7902-1-bin.wang@intel.com/ Changes: 1. Remove redundant zero-initializations in asm code 2. Pass depth and nb_planes as parameters to ff_sobel_init_x86() 3. Filter-agnostic initialization was moved to the beginning of param_init() 4. I also noticed the duplicate configurations. But I think it may not suitable to change other code path in a sobel patch, just change sobel code path. 5. In order to move sobel initialization to convolution.h, I have to move 3 functions to this header file. They are setup_3x3(), filter_sobel() and filter16_sobel() Welcome more advice! --- libavfilter/convolution.h | 74 +++++++++++++ libavfilter/vf_convolution.c | 91 +++------------- libavfilter/x86/vf_convolution.asm | 147 ++++++++++++++++++++++++++ libavfilter/x86/vf_convolution_init.c | 18 ++++ tests/checkasm/Makefile | 1 + tests/checkasm/checkasm.c | 3 + tests/checkasm/checkasm.h | 1 + tests/checkasm/vf_convolution.c | 103 ++++++++++++++++++ 8 files changed, 360 insertions(+), 78 deletions(-) create mode 100644 tests/checkasm/vf_convolution.c Thanks Bin
diff --git a/libavfilter/convolution.h b/libavfilter/convolution.h index 88aabe9a20..4520ad13e0 100644 --- a/libavfilter/convolution.h +++ b/libavfilter/convolution.h @@ -61,4 +61,6 @@ typedef struct ConvolutionContext { } ConvolutionContext; void ff_convolution_init_x86(ConvolutionContext *s); +void ff_sobel_init_x86(ConvolutionContext *s); +void ff_convolution_init(ConvolutionContext *s, const char *filter_name); #endif diff --git a/libavfilter/vf_convolution.c b/libavfilter/vf_convolution.c index 9a9c099e6d..0eeaaa9fc3 100644 --- a/libavfilter/vf_convolution.c +++ b/libavfilter/vf_convolution.c @@ -874,6 +874,9 @@ static int param_init(AVFilterContext *ctx) if (s->depth > 8) for (p = 0; p < s->nb_planes; p++) s->filter[p] = filter16_sobel; +#if CONFIG_CONVOLUTION_FILTER && ARCH_X86_64 + ff_sobel_init_x86(s); +#endif } else if (!strcmp(ctx->filter->name, "kirsch")) { if (s->depth > 8) for (p = 0; p < s->nb_planes; p++) @@ -887,6 +890,26 @@ static int param_init(AVFilterContext *ctx) return 0; } +void ff_convolution_init(ConvolutionContext *s, const char *filter_name) +{ + if (!strcmp(filter_name, "sobel")) { + for (int i = 0; i < 4; i++) { + s->filter[i] = filter_sobel; + s->copy[i] = !((1 << i) & s->planes); + s->size[i] = 3; + s->setup[i] = setup_3x3; + s->rdiv[i] = s->scale; + s->bias[i] = s->delta; + } + if (s->depth > 8) + for (int i = 0; i < 4; i++) + s->filter[i] = filter16_sobel; +#if CONFIG_CONVOLUTION_FILTER && ARCH_X86_64 + ff_sobel_init_x86(s); +#endif + } +} + static int config_input(AVFilterLink *inlink) { AVFilterContext *ctx = inlink->dst; diff --git a/libavfilter/x86/vf_convolution.asm b/libavfilter/x86/vf_convolution.asm index 754d4d1064..a95d5ad499 100644 --- a/libavfilter/x86/vf_convolution.asm +++ b/libavfilter/x86/vf_convolution.asm @@ -22,6 +22,18 @@ SECTION_RODATA half: dd 0.5 +data_p1: dd 1 +data_n1: dd -1 +data_p2: dd 2 +data_n2: dd -2 + +ALIGN 64 +sobel_perm: db 0, 16, 32, 48, 1, 17, 33, 49, 2, 18, 34, 50, 3, 19, 35, 51 + db 4, 20, 36, 52, 5, 21, 37, 53, 6, 22, 38, 54, 7, 23, 39, 55 + db 8, 24, 40, 56, 9, 25, 41, 57, 10, 26, 42, 58, 11, 27, 43, 59 + db 12, 28, 44, 60, 13, 29, 45, 61, 14, 30, 46, 62, 15, 31, 47, 63 +sobel_mulA: db -1, 1, -2, 2 +sobel_mulB: db 1, -1, 2, -2 SECTION .text @@ -154,3 +166,141 @@ cglobal filter_3x3, 4, 15, 7, dst, width, rdiv, bias, matrix, ptr, c0, c1, c2, c INIT_XMM sse4 FILTER_3X3 %endif + +%macro SOBEL_MUL 2 + movzx ptrd, byte [c%1q + xq] + imul ptrd, [%2] + add rd, ptrd +%endmacro + +%macro SOBEL_ADD 1 + movzx ptrd, byte [c%1q + xq] + add rd, ptrd +%endmacro + +; void filter_sobel_avx512(uint8_t *dst, int width, +; float scale, float delta, const int *const matrix, +; const uint8_t *c[], int peak, int radius, +; int dstride, int stride) +%macro FILTER_SOBEL 0 +%if UNIX64 +cglobal filter_sobel, 4, 15, 7, dst, width, matrix, ptr, c0, c1, c2, c3, c4, c5, c6, c7, c8, r, x +%else +cglobal filter_sobel, 4, 15, 7, dst, width, rdiv, bias, matrix, ptr, c0, c1, c2, c3, c4, c5, c6, c7, c8, r, x +%endif +%if WIN64 + SWAP xmm0, xmm2 + SWAP xmm1, xmm3 + mov r2q, matrixmp + mov r3q, ptrmp + DEFINE_ARGS dst, width, matrix, ptr, c0, c1, c2, c3, c4, c5, c6, c7, c8, r, x +%endif + movsxdifnidn widthq, widthd + VBROADCASTSS m0, xmm0 + VBROADCASTSS m1, xmm1 + pxor m6, m6 + mov c0q, [ptrq + 0*gprsize] + mov c1q, [ptrq + 1*gprsize] + mov c2q, [ptrq + 2*gprsize] + mov c3q, [ptrq + 3*gprsize] + mov c4q, [ptrq + 4*gprsize] + mov c5q, [ptrq + 5*gprsize] + mov c6q, [ptrq + 6*gprsize] + mov c7q, [ptrq + 7*gprsize] + mov c8q, [ptrq + 8*gprsize] + + xor xq, xq + cmp widthq, mmsize/4 + jl .loop2 + + mov rq, widthq + and rq, mmsize/4-1 + sub widthq, rq + + mova m6, [sobel_perm] +.loop1: + pxor m4, m4 + pxor m5, m5 + + movu xm3, [c2q + xq] + pmovzxbd m5, [c0q + xq] + vinserti32x4 ym3, [c6q + xq], 1 + pmovzxbd m4, [c8q + xq] + vinserti32x4 m2, m3, [c1q + xq], 2 + vinserti32x4 m3, [c5q + xq], 2 + vinserti32x4 m2, [c7q + xq], 3 + vinserti32x4 m3, [c3q + xq], 3 + vpermb m2, m6, m2 + psubd m4, m5 + vpermb m3, m6, m3 + mova m5, m4 + vpdpbusd m4, m2, [sobel_mulA] {1to16} + vpdpbusd m5, m3, [sobel_mulB] {1to16} + + cvtdq2ps m4, m4 + mulps m4, m4 + + cvtdq2ps m5, m5 + VFMADD231PS m4, m5, m5 + + sqrtps m4, m4 + fmaddps m4, m4, m0, m1 + cvttps2dq m4, m4 + vpmovusdb [dstq + xq], m4 + + add xq, mmsize/4 + cmp xq, widthq + jl .loop1 + + add widthq, rq + cmp xq, widthq + jge .end + +.loop2: + xor rd, rd + pxor m4, m4 + + ;Gx + SOBEL_MUL 0, data_n1 + SOBEL_MUL 1, data_n2 + SOBEL_MUL 2, data_n1 + SOBEL_ADD 6 + SOBEL_MUL 7, data_p2 + SOBEL_ADD 8 + + cvtsi2ss xmm4, rd + mulss xmm4, xmm4 + + xor rd, rd + ;Gy + SOBEL_MUL 0, data_n1 + SOBEL_ADD 2 + SOBEL_MUL 3, data_n2 + SOBEL_MUL 5, data_p2 + SOBEL_MUL 6, data_n1 + SOBEL_ADD 8 + + cvtsi2ss xmm5, rd + fmaddss xmm4, xmm5, xmm5, xmm4 + + sqrtps xmm4, xmm4 + fmaddss xmm4, xmm4, xmm0, xmm1 ;sum = sum * rdiv + bias + cvttps2dq xmm4, xmm4 ; trunc to integer + packssdw xmm4, xmm4 + packuswb xmm4, xmm4 + movd rd, xmm4 + mov [dstq + xq], rb + + add xq, 1 + cmp xq, widthq + jl .loop2 +.end: + RET +%endmacro + +%if ARCH_X86_64 +%if HAVE_AVX512ICL_EXTERNAL +INIT_ZMM avx512icl +FILTER_SOBEL +%endif +%endif diff --git a/libavfilter/x86/vf_convolution_init.c b/libavfilter/x86/vf_convolution_init.c index b78a47d02b..52a3d28991 100644 --- a/libavfilter/x86/vf_convolution_init.c +++ b/libavfilter/x86/vf_convolution_init.c @@ -29,6 +29,11 @@ void ff_filter_3x3_sse4(uint8_t *dst, int width, const uint8_t *c[], int peak, int radius, int dstride, int stride, int size); +void ff_filter_sobel_avx512icl(uint8_t *dst, int width, + float scale, float delta, const int *const matrix, + const uint8_t *c[], int peak, int radius, + int dstride, int stride, int size); + av_cold void ff_convolution_init_x86(ConvolutionContext *s) { #if ARCH_X86_64 @@ -44,3 +49,16 @@ av_cold void ff_convolution_init_x86(ConvolutionContext *s) } #endif } + +av_cold void ff_sobel_init_x86(ConvolutionContext *s) +{ +#if ARCH_X86_64 + int cpu_flags = av_get_cpu_flags(); + for (int i = 0; i < s->nb_planes; i++) { + if (s->depth == 8) { + if (EXTERNAL_AVX512ICL(cpu_flags)) + s->filter[i] = ff_filter_sobel_avx512icl; + } + } +#endif +} diff --git a/tests/checkasm/Makefile b/tests/checkasm/Makefile index 1ac170491b..4e91547fde 100644 --- a/tests/checkasm/Makefile +++ b/tests/checkasm/Makefile @@ -44,6 +44,7 @@ AVFILTEROBJS-$(CONFIG_GBLUR_FILTER) += vf_gblur.o AVFILTEROBJS-$(CONFIG_HFLIP_FILTER) += vf_hflip.o AVFILTEROBJS-$(CONFIG_THRESHOLD_FILTER) += vf_threshold.o AVFILTEROBJS-$(CONFIG_NLMEANS_FILTER) += vf_nlmeans.o +AVFILTEROBJS-$(CONFIG_CONVOLUTION_FILTER) += vf_convolution.o CHECKASMOBJS-$(CONFIG_AVFILTER) += $(AVFILTEROBJS-yes) diff --git a/tests/checkasm/checkasm.c b/tests/checkasm/checkasm.c index e56fd3850e..ae5e9d1143 100644 --- a/tests/checkasm/checkasm.c +++ b/tests/checkasm/checkasm.c @@ -191,6 +191,9 @@ static const struct { #if CONFIG_THRESHOLD_FILTER { "vf_threshold", checkasm_check_vf_threshold }, #endif + #if CONFIG_CONVOLUTION_FILTER + { "vf_convolution", checkasm_check_vf_convolution }, + #endif #endif #if CONFIG_SWSCALE { "sw_gbrp", checkasm_check_sw_gbrp }, diff --git a/tests/checkasm/checkasm.h b/tests/checkasm/checkasm.h index d7645d3730..71c722cf77 100644 --- a/tests/checkasm/checkasm.h +++ b/tests/checkasm/checkasm.h @@ -85,6 +85,7 @@ void checkasm_check_vf_eq(void); void checkasm_check_vf_gblur(void); void checkasm_check_vf_hflip(void); void checkasm_check_vf_threshold(void); +void checkasm_check_vf_convolution(void); void checkasm_check_vp8dsp(void); void checkasm_check_vp9dsp(void); void checkasm_check_videodsp(void); diff --git a/tests/checkasm/vf_convolution.c b/tests/checkasm/vf_convolution.c new file mode 100644 index 0000000000..a10da8b45e --- /dev/null +++ b/tests/checkasm/vf_convolution.c @@ -0,0 +1,103 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with FFmpeg; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include <string.h> +#include "checkasm.h" +#include "libavfilter/avfilter.h" +#include "libavfilter/convolution.h" +#include "libavutil/intreadwrite.h" +#include "libavutil/mem_internal.h" + +#define WIDTH 512 +#define HEIGHT 512 +#define SRC_STRIDE 512 +#define PIXELS (WIDTH * HEIGHT) + +#define randomize_buffers(buf, size) \ + do { \ + int j; \ + uint8_t *tmp_buf = (uint8_t *)buf;\ + for (j = 0; j< size; j++) \ + tmp_buf[j] = rnd() & 0xFF; \ + } while (0) + +static void check_sobel(const char * report_name) +{ + LOCAL_ALIGNED_32(uint8_t, src, [PIXELS]); + LOCAL_ALIGNED_32(uint8_t, dst_ref, [PIXELS]); + LOCAL_ALIGNED_32(uint8_t, dst_new, [PIXELS]); + const int height = WIDTH; + const int width = HEIGHT; + const int stride = SRC_STRIDE; + const int dstride = SRC_STRIDE; + int mode = 0; + const uint8_t *c[49]; + const int radius = 1; + const int bpc = 1; + const int step = mode == MATRIX_COLUMN ? 16 : 1; + const int slice_start = 0; + const int slice_end = height; + int y; + const int sizew = mode == MATRIX_COLUMN ? height : width; + float scale = 2; + float delta = 10; + + ConvolutionContext s; + + s.scale = scale; + s.delta = delta; + s.depth = 8; + s.nb_planes = 3; + ff_convolution_init(&s, "sobel"); + + declare_func(void, uint8_t *dst, int width, float scale, float delta, const int *const matrix, + const uint8_t *c[], int peak, int radius, int dstride, int stride, int size); + + memset(dst_ref, 0, PIXELS); + memset(dst_new, 0, PIXELS); + randomize_buffers(src, PIXELS); + + if (check_func(s.filter[0], "%s", report_name)) { + for (y = slice_start; y < slice_end; y += step) { + const int xoff = mode == MATRIX_COLUMN ? (y - slice_start) * bpc : radius * bpc; + const int yoff = mode == MATRIX_COLUMN ? radius * dstride : 0; + + s.setup[0](radius, c, src, stride, radius, width, y, height, bpc); + call_ref(dst_ref + yoff + xoff, sizew - 2 * radius, + scale, delta, NULL, c, 0, radius, + dstride, stride, slice_end - step); + call_new(dst_new + yoff + xoff, sizew - 2 * radius, + scale, delta, NULL, c, 0, radius, + dstride, stride, slice_end - step); + if (memcmp(dst_ref + yoff + xoff, dst_new + yoff + xoff, slice_end - step)) + fail(); + bench_new(dst_new + yoff + xoff, sizew - 2 * radius, + scale, delta, NULL, c, 0, radius, + dstride, stride, slice_end - step); + if (mode != MATRIX_COLUMN) + dst_ref += dstride; + } + } + +} + +void checkasm_check_vf_convolution(void) +{ + check_sobel("sobel"); + report("convolution:sobel"); +}