[FFmpeg-cvslog] swr: mix_2_1_float SSE/AVX

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Tue Jun 12 16:24:49 2012 +0200| [52afa43691116bf35b6398ef3087f3a1508ef9a6] | committer: Michael Niedermayer

swr: mix_2_1_float SSE/AVX

Based-on code by Justin Ruggles
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=52afa43691116bf35b6398ef3087f3a1508ef9a6
---

 libswresample/x86/rematrix.asm     |   48 ++++++++++++++++++++++++++++++++++++
 libswresample/x86/swresample_x86.c |    2 ++
 2 files changed, 50 insertions(+)

diff --git a/libswresample/x86/rematrix.asm b/libswresample/x86/rematrix.asm
index aacd316..e6f0b2f 100644
--- a/libswresample/x86/rematrix.asm
+++ b/libswresample/x86/rematrix.asm
@@ -23,6 +23,50 @@
 
 SECTION .text
 
+%macro MIX2_FLT 1
+cglobal mix_2_1_%1_float, 7, 7, 6, out, in1, in2, coeffp, index1, index2, len
+%ifidn %1, a
+    test in1q, mmsize-1
+        jne mix_2_1_float_u_int %+ SUFFIX
+    test in2q, mmsize-1
+        jne mix_2_1_float_u_int %+ SUFFIX
+    test outq, mmsize-1
+        jne mix_2_1_float_u_int %+ SUFFIX
+%else
+mix_2_1_float_u_int %+ SUFFIX
+%endif
+    VBROADCASTSS m4, [coeffpq + 4*index1q]
+    VBROADCASTSS m5, [coeffpq + 4*index2q]
+    shl lenq    , 2
+    add in1q    , lenq
+    add in2q    , lenq
+    add outq    , lenq
+    neg lenq
+.next:
+%ifidn %1, a
+    mulps        m0, m4, [in1q + lenq         ]
+    mulps        m1, m5, [in2q + lenq         ]
+    mulps        m2, m4, [in1q + lenq + mmsize]
+    mulps        m3, m5, [in2q + lenq + mmsize]
+%else
+    movu         m0, [in1q + lenq         ]
+    movu         m1, [in2q + lenq         ]
+    movu         m2, [in1q + lenq + mmsize]
+    movu         m3, [in2q + lenq + mmsize]
+    mulps        m0, m0, m4
+    mulps        m1, m1, m5
+    mulps        m2, m2, m4
+    mulps        m3, m3, m5
+%endif
+    addps        m0, m0, m1
+    addps        m2, m2, m3
+    mov%1  [outq + lenq         ], m0
+    mov%1  [outq + lenq + mmsize], m2
+    add        lenq, mmsize*2
+        jl .next
+    REP_RET
+%endmacro
+
 %macro MIX1_FLT 1
 cglobal mix_1_1_%1_float, 5, 5, 3, out, in, coeffp, index, len
 %ifidn %1, a
@@ -56,11 +100,15 @@ mix_1_1_float_u_int %+ SUFFIX
 %endmacro
 
 INIT_XMM sse
+MIX2_FLT u
+MIX2_FLT a
 MIX1_FLT u
 MIX1_FLT a
 
 %if HAVE_AVX
 INIT_YMM avx
+MIX2_FLT u
+MIX2_FLT a
 MIX1_FLT u
 MIX1_FLT a
 %endif
diff --git a/libswresample/x86/swresample_x86.c b/libswresample/x86/swresample_x86.c
index f523dd0..18c601f 100644
--- a/libswresample/x86/swresample_x86.c
+++ b/libswresample/x86/swresample_x86.c
@@ -166,9 +166,11 @@ void swri_rematrix_init_x86(struct SwrContext *s){
     } else if(s->midbuf.fmt == AV_SAMPLE_FMT_FLTP){
         if(mm_flags & AV_CPU_FLAG_SSE) {
             s->mix_1_1_simd = ff_mix_1_1_a_float_sse;
+            s->mix_2_1_simd = ff_mix_2_1_a_float_sse;
         }
         if(HAVE_AVX && mm_flags & AV_CPU_FLAG_AVX) {
             s->mix_1_1_simd = ff_mix_1_1_a_float_avx;
+            s->mix_2_1_simd = ff_mix_2_1_a_float_avx;
         }
         s->native_simd_matrix = av_mallocz(num * sizeof(float));
         memcpy(s->native_simd_matrix, s->native_matrix, num * sizeof(float));