[FFmpeg-cvslog] lavr: x86: optimized 6-channel flt to fltp conversion

[Justin Ruggles]

ffmpeg | branch: master | Justin Ruggles <justin.ruggles at gmail.com> | Wed May  2 18:27:30 2012 -0400| [06e751a40f327ce89eae91b808eb41463f98da66] | committer: Justin Ruggles

lavr: x86: optimized 6-channel flt to fltp conversion

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=06e751a40f327ce89eae91b808eb41463f98da66
---

 libavresample/x86/audio_convert.asm    |   63 ++++++++++++++++++++++++++++++++
 libavresample/x86/audio_convert_init.c |    9 +++++
 2 files changed, 72 insertions(+)

diff --git a/libavresample/x86/audio_convert.asm b/libavresample/x86/audio_convert.asm
index 98bd06b..3db64d2 100644
--- a/libavresample/x86/audio_convert.asm
+++ b/libavresample/x86/audio_convert.asm
@@ -1197,3 +1197,66 @@ CONV_FLT_TO_FLTP_2CH
 INIT_XMM avx
 CONV_FLT_TO_FLTP_2CH
 %endif
+
+;------------------------------------------------------------------------------
+; void ff_conv_flt_to_fltp_6ch(float *const *dst, float *src, int len,
+;                              int channels);
+;------------------------------------------------------------------------------
+
+%macro CONV_FLT_TO_FLTP_6CH 0
+%if ARCH_X86_64
+cglobal conv_flt_to_fltp_6ch, 3,8,7, dst, src, len, dst1, dst2, dst3, dst4, dst5
+%else
+cglobal conv_flt_to_fltp_6ch, 2,7,7, dst, src, dst1, dst2, dst3, dst4, dst5
+%define lend dword r2m
+%endif
+    mov     dst1q, [dstq+  gprsize]
+    mov     dst2q, [dstq+2*gprsize]
+    mov     dst3q, [dstq+3*gprsize]
+    mov     dst4q, [dstq+4*gprsize]
+    mov     dst5q, [dstq+5*gprsize]
+    mov      dstq, [dstq          ]
+    sub     dst1q, dstq
+    sub     dst2q, dstq
+    sub     dst3q, dstq
+    sub     dst4q, dstq
+    sub     dst5q, dstq
+.loop:
+    mova       m0, [srcq+0*mmsize]  ; m0 =  0,  1,  2,  3
+    mova       m1, [srcq+1*mmsize]  ; m1 =  4,  5,  6,  7
+    mova       m2, [srcq+2*mmsize]  ; m2 =  8,  9, 10, 11
+    mova       m3, [srcq+3*mmsize]  ; m3 = 12, 13, 14, 15
+    mova       m4, [srcq+4*mmsize]  ; m4 = 16, 17, 18, 19
+    mova       m5, [srcq+5*mmsize]  ; m5 = 20, 21, 22, 23
+
+    SBUTTERFLY2 dq, 0, 3, 6         ; m0 =  0, 12,  1, 13
+                                    ; m3 =  2, 14,  3, 15
+    SBUTTERFLY2 dq, 1, 4, 6         ; m1 =  4, 16,  5, 17
+                                    ; m4 =  6, 18,  7, 19
+    SBUTTERFLY2 dq, 2, 5, 6         ; m2 =  8, 20,  9, 21
+                                    ; m5 = 10, 22, 11, 23
+    SBUTTERFLY2 dq, 0, 4, 6         ; m0 =  0,  6, 12, 18
+                                    ; m4 =  1,  7, 13, 19
+    SBUTTERFLY2 dq, 3, 2, 6         ; m3 =  2,  8, 14, 20
+                                    ; m2 =  3,  9, 15, 21
+    SBUTTERFLY2 dq, 1, 5, 6         ; m1 =  4, 10, 16, 22
+                                    ; m5 =  5, 11, 17, 23
+    mova [dstq      ], m0
+    mova [dstq+dst1q], m4
+    mova [dstq+dst2q], m3
+    mova [dstq+dst3q], m2
+    mova [dstq+dst4q], m1
+    mova [dstq+dst5q], m5
+    add      srcq, mmsize*6
+    add      dstq, mmsize
+    sub      lend, mmsize/4
+    jg .loop
+    REP_RET
+%endmacro
+
+INIT_XMM sse2
+CONV_FLT_TO_FLTP_6CH
+%if HAVE_AVX
+INIT_XMM avx
+CONV_FLT_TO_FLTP_6CH
+%endif
diff --git a/libavresample/x86/audio_convert_init.c b/libavresample/x86/audio_convert_init.c
index a9fd630..a3589c6 100644
--- a/libavresample/x86/audio_convert_init.c
+++ b/libavresample/x86/audio_convert_init.c
@@ -137,6 +137,11 @@ extern void ff_conv_flt_to_fltp_2ch_sse(float *const *dst, float *src, int len,
 extern void ff_conv_flt_to_fltp_2ch_avx(float *const *dst, float *src, int len,
                                         int channels);
 
+extern void ff_conv_flt_to_fltp_6ch_sse2(float *const *dst, float *src, int len,
+                                         int channels);
+extern void ff_conv_flt_to_fltp_6ch_avx (float *const *dst, float *src, int len,
+                                         int channels);
+
 av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
 {
 #if HAVE_YASM
@@ -198,6 +203,8 @@ av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
                                   2, 16, 8, "SSE2", ff_conv_flt_to_s16p_2ch_sse2);
         ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16P, AV_SAMPLE_FMT_FLT,
                                   6, 16, 4, "SSE2", ff_conv_flt_to_s16p_6ch_sse2);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_FLT,
+                                  6, 16, 4, "SSE2", ff_conv_flt_to_fltp_6ch_sse2);
     }
     if (mm_flags & AV_CPU_FLAG_SSSE3 && HAVE_SSE) {
         ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16P,
@@ -250,6 +257,8 @@ av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
                                   6, 16, 4, "AVX", ff_conv_flt_to_s16p_6ch_avx);
         ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_FLT,
                                   2, 16, 4, "AVX", ff_conv_flt_to_fltp_2ch_avx);
+        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_FLT,
+                                  6, 16, 4, "AVX", ff_conv_flt_to_fltp_6ch_avx);
     }
 #endif
 }