[FFmpeg-devel] [PATCH] avfilter/vf_transpose: add x86 SIMD

Paul B Mahol onemda at gmail.com
Mon Oct 21 18:45:04 EEST 2019


Signed-off-by: Paul B Mahol <onemda at gmail.com>
---
 libavfilter/transpose.h             |  10 +++
 libavfilter/vf_transpose.c          |  18 ++---
 libavfilter/x86/Makefile            |   2 +
 libavfilter/x86/vf_transpose.asm    | 104 ++++++++++++++++++++++++++++
 libavfilter/x86/vf_transpose_init.c |  49 +++++++++++++
 5 files changed, 174 insertions(+), 9 deletions(-)
 create mode 100644 libavfilter/x86/vf_transpose.asm
 create mode 100644 libavfilter/x86/vf_transpose_init.c

diff --git a/libavfilter/transpose.h b/libavfilter/transpose.h
index aa262b9487..f73a42864f 100644
--- a/libavfilter/transpose.h
+++ b/libavfilter/transpose.h
@@ -34,4 +34,14 @@ enum TransposeDir {
     TRANSPOSE_VFLIP,
 };
 
+typedef struct TransVtable {
+    void (*transpose_8x8)(uint8_t *src, ptrdiff_t src_linesize,
+                          uint8_t *dst, ptrdiff_t dst_linesize);
+    void (*transpose_block)(uint8_t *src, ptrdiff_t src_linesize,
+                            uint8_t *dst, ptrdiff_t dst_linesize,
+                            int w, int h);
+} TransVtable;
+
+void ff_transpose_init_x86(TransVtable *v, int pixstep);
+
 #endif
diff --git a/libavfilter/vf_transpose.c b/libavfilter/vf_transpose.c
index dd54947bd9..16ac6c311a 100644
--- a/libavfilter/vf_transpose.c
+++ b/libavfilter/vf_transpose.c
@@ -40,14 +40,6 @@
 #include "video.h"
 #include "transpose.h"
 
-typedef struct TransVtable {
-    void (*transpose_8x8)(uint8_t *src, ptrdiff_t src_linesize,
-                          uint8_t *dst, ptrdiff_t dst_linesize);
-    void (*transpose_block)(uint8_t *src, ptrdiff_t src_linesize,
-                            uint8_t *dst, ptrdiff_t dst_linesize,
-                            int w, int h);
-} TransVtable;
-
 typedef struct TransContext {
     const AVClass *class;
     int hsub, vsub;
@@ -243,7 +235,15 @@ static int config_props_output(AVFilterLink *outlink)
         }
     }
 
-    av_log(ctx, AV_LOG_VERBOSE,
+    if (ARCH_X86) {
+        for (int i = 0; i < 4; i++) {
+            TransVtable *v = &s->vtables[i];
+
+            ff_transpose_init_x86(v, s->pixsteps[i]);
+        }
+    }
+
+     av_log(ctx, AV_LOG_VERBOSE,
            "w:%d h:%d dir:%d -> w:%d h:%d rotation:%s vflip:%d\n",
            inlink->w, inlink->h, s->dir, outlink->w, outlink->h,
            s->dir == 1 || s->dir == 3 ? "clockwise" : "counterclockwise",
diff --git a/libavfilter/x86/Makefile b/libavfilter/x86/Makefile
index 06f832e36c..8d97e46c3f 100644
--- a/libavfilter/x86/Makefile
+++ b/libavfilter/x86/Makefile
@@ -31,6 +31,7 @@ OBJS-$(CONFIG_STEREO3D_FILTER)               += x86/vf_stereo3d_init.o
 OBJS-$(CONFIG_TBLEND_FILTER)                 += x86/vf_blend_init.o
 OBJS-$(CONFIG_THRESHOLD_FILTER)              += x86/vf_threshold_init.o
 OBJS-$(CONFIG_TINTERLACE_FILTER)             += x86/vf_tinterlace_init.o
+OBJS-$(CONFIG_TRANSPOSE_FILTER)              += x86/vf_transpose_init.o
 OBJS-$(CONFIG_VOLUME_FILTER)                 += x86/af_volume_init.o
 OBJS-$(CONFIG_V360_FILTER)                   += x86/vf_v360_init.o
 OBJS-$(CONFIG_W3FDIF_FILTER)                 += x86/vf_w3fdif_init.o
@@ -69,6 +70,7 @@ X86ASM-OBJS-$(CONFIG_STEREO3D_FILTER)        += x86/vf_stereo3d.o
 X86ASM-OBJS-$(CONFIG_TBLEND_FILTER)          += x86/vf_blend.o
 X86ASM-OBJS-$(CONFIG_THRESHOLD_FILTER)       += x86/vf_threshold.o
 X86ASM-OBJS-$(CONFIG_TINTERLACE_FILTER)      += x86/vf_interlace.o
+X86ASM-OBJS-$(CONFIG_TRANSPOSE_FILTER)       += x86/vf_transpose.o
 X86ASM-OBJS-$(CONFIG_VOLUME_FILTER)          += x86/af_volume.o
 X86ASM-OBJS-$(CONFIG_V360_FILTER)            += x86/vf_v360.o
 X86ASM-OBJS-$(CONFIG_W3FDIF_FILTER)          += x86/vf_w3fdif.o
diff --git a/libavfilter/x86/vf_transpose.asm b/libavfilter/x86/vf_transpose.asm
new file mode 100644
index 0000000000..6d925d5d97
--- /dev/null
+++ b/libavfilter/x86/vf_transpose.asm
@@ -0,0 +1,104 @@
+;*****************************************************************************
+;* x86-optimized functions for transpose filter
+;*
+;* Copyright (C) 2019 Paul B Mahol
+;*
+;* This file is part of FFmpeg.
+;*
+;* FFmpeg is free software; you can redistribute it and/or
+;* modify it under the terms of the GNU Lesser General Public
+;* License as published by the Free Software Foundation; either
+;* version 2.1 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
+;* Lesser General Public License for more details.
+;*
+;* You should have received a copy of the GNU Lesser 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 "libavutil/x86/x86util.asm"
+
+SECTION .text
+
+;------------------------------------------------------------------------------
+; void ff_transpose_8x8(uint8_t *src, ptrdiff_t src_linesize,
+;                       uint8_t *dst, ptrdiff_t dst_linesize)
+;------------------------------------------------------------------------------
+
+INIT_XMM sse4
+cglobal transpose_8x8_8, 4,4,8, src, src_linesize, dst, dst_linesize
+    movu    m0, [srcq]
+    add    srcq, src_linesizeq
+    movu    m1, [srcq]
+    add    srcq, src_linesizeq
+    movu    m2, [srcq]
+    add    srcq, src_linesizeq
+    movu    m3, [srcq]
+    add    srcq, src_linesizeq
+    movu    m4, [srcq]
+    add    srcq, src_linesizeq
+    movu    m5, [srcq]
+    add    srcq, src_linesizeq
+    movu    m6, [srcq]
+    add    srcq, src_linesizeq
+    movu    m7, [srcq]
+
+    TRANSPOSE_8X8B 0, 1, 2, 3, 4, 5, 6, 7
+
+    movq [dstq], m0
+    add    dstq, dst_linesizeq
+    movq [dstq], m1
+    add    dstq, dst_linesizeq
+    movq [dstq], m2
+    add    dstq, dst_linesizeq
+    movq [dstq], m3
+    add    dstq, dst_linesizeq
+    movq [dstq], m4
+    add    dstq, dst_linesizeq
+    movq [dstq], m5
+    add    dstq, dst_linesizeq
+    movq [dstq], m6
+    add    dstq, dst_linesizeq
+    movq [dstq], m7
+    RET
+
+INIT_XMM sse4
+cglobal transpose_8x8_16, 4,4,9, src, src_linesize, dst, dst_linesize
+    movu    m0, [srcq]
+    add    srcq, src_linesizeq
+    movu    m1, [srcq]
+    add    srcq, src_linesizeq
+    movu    m2, [srcq]
+    add    srcq, src_linesizeq
+    movu    m3, [srcq]
+    add    srcq, src_linesizeq
+    movu    m4, [srcq]
+    add    srcq, src_linesizeq
+    movu    m5, [srcq]
+    add    srcq, src_linesizeq
+    movu    m6, [srcq]
+    add    srcq, src_linesizeq
+    movu    m7, [srcq]
+
+    TRANSPOSE8x8W 0, 1, 2, 3, 4, 5, 6, 7, 8
+
+    movu [dstq], m0
+    add    dstq, dst_linesizeq
+    movu [dstq], m1
+    add    dstq, dst_linesizeq
+    movu [dstq], m2
+    add    dstq, dst_linesizeq
+    movu [dstq], m3
+    add    dstq, dst_linesizeq
+    movu [dstq], m4
+    add    dstq, dst_linesizeq
+    movu [dstq], m5
+    add    dstq, dst_linesizeq
+    movu [dstq], m6
+    add    dstq, dst_linesizeq
+    movu [dstq], m7
+    RET
diff --git a/libavfilter/x86/vf_transpose_init.c b/libavfilter/x86/vf_transpose_init.c
new file mode 100644
index 0000000000..4f5acd5e56
--- /dev/null
+++ b/libavfilter/x86/vf_transpose_init.c
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2019 Paul B Mahol
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser 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 "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/mem.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavfilter/transpose.h"
+
+void ff_transpose_8x8_8_sse4(uint8_t *src,
+                             ptrdiff_t src_linesize,
+                             uint8_t *dst,
+                             ptrdiff_t dst_linesize);
+
+void ff_transpose_8x8_16_sse4(uint8_t *src,
+                              ptrdiff_t src_linesize,
+                              uint8_t *dst,
+                              ptrdiff_t dst_linesize);
+
+av_cold void ff_transpose_init_x86(TransVtable *v, int pixstep)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (EXTERNAL_SSE4(cpu_flags) && pixstep == 1) {
+        v->transpose_8x8 = ff_transpose_8x8_8_sse4;
+    }
+
+    if (EXTERNAL_SSE4(cpu_flags) && pixstep == 2) {
+        v->transpose_8x8 = ff_transpose_8x8_16_sse4;
+    }
+}
-- 
2.17.1



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