dct32: Add AVX implementation of 32-point DCT

3 files changed, 222 insertions, 117 deletions

diff --git a/libavcodec/x86/dct32_sse.asm b/libavcodec/x86/dct32_sse.asm
index fa0a502acf..2e1176cd84 100644
--- a/libavcodec/x86/dct32_sse.asm
+++ b/libavcodec/x86/dct32_sse.asm
@@ -20,31 +20,41 @@
 ;******************************************************************************
 
 %include "x86inc.asm"
+%include "config.asm"
 
 SECTION_RODATA 32
 
 align 32
 ps_cos_vec: dd   0.500603,  0.505471,  0.515447,  0.531043
             dd   0.553104,  0.582935,  0.622504,  0.674808
-            dd  -1.169440, -0.972568, -0.839350, -0.744536
             dd -10.190008, -3.407609, -2.057781, -1.484165
+            dd  -1.169440, -0.972568, -0.839350, -0.744536
             dd   0.502419,  0.522499,  0.566944,  0.646822
             dd   0.788155,  1.060678,  1.722447,  5.101149
             dd   0.509796,  0.601345,  0.899976,  2.562916
+            dd   0.509796,  0.601345,  0.899976,  2.562916
             dd   1.000000,  1.000000,  1.306563,  0.541196
+            dd   1.000000,  1.000000,  1.306563,  0.541196
+            dd   1.000000,  0.707107,  1.000000, -0.707107
             dd   1.000000,  0.707107,  1.000000, -0.707107
 
 
-ps_p1p1m1m1: dd 0, 0, 0x80000000, 0x80000000
+ps_p1p1m1m1: dd 0, 0, 0x80000000, 0x80000000, 0, 0, 0x80000000, 0x80000000
 
-%macro BUTTERFLY 4
+%macro BUTTERFLY_SSE 4
     movaps %4, %1
     subps  %1, %2
     addps  %2, %4
     mulps  %1, %3
 %endmacro
 
-%macro BUTTERFLY0 5
+%macro BUTTERFLY_AVX 4
+    vsubps  %4, %1, %2
+    vaddps  %2, %2, %1
+    vmulps  %1, %4, %3
+%endmacro
+
+%macro BUTTERFLY0_SSE 5
     movaps %4, %1
     shufps %1, %1, %5
     xorps  %4, %2
@@ -52,6 +62,13 @@ ps_p1p1m1m1: dd 0, 0, 0x80000000, 0x80000000
     mulps  %1, %3
 %endmacro
 
+%macro BUTTERFLY0_AVX 5
+    vshufps %4, %1, %1, %5
+    vxorps  %1, %1, %2
+    vaddps  %4, %4, %1
+    vmulps  %1, %4, %3
+%endmacro
+
 %macro BUTTERFLY2 4
     BUTTERFLY0 %1, %2, %3, %4, 0x1b
 %endmacro
@@ -60,8 +77,199 @@ ps_p1p1m1m1: dd 0, 0, 0x80000000, 0x80000000
     BUTTERFLY0 %1, %2, %3, %4, 0xb1
 %endmacro
 
-INIT_XMM
+%macro PASS6_AND_PERMUTE 0
+    mov         tmpd, [outq+4]
+    movss         m7, [outq+72]
+    addss         m7, [outq+76]
+    movss         m3, [outq+56]
+    addss         m3, [outq+60]
+    addss         m4, m3
+    movss         m2, [outq+52]
+    addss         m2, m3
+    movss         m3, [outq+104]
+    addss         m3, [outq+108]
+    addss         m1, m3
+    addss         m5, m4
+    movss [outq+ 16], m1
+    movss         m1, [outq+100]
+    addss         m1, m3
+    movss         m3, [outq+40]
+    movss [outq+ 48], m1
+    addss         m3, [outq+44]
+    movss         m1, [outq+100]
+    addss         m4, m3
+    addss         m3, m2
+    addss         m1, [outq+108]
+    movss [outq+ 40], m3
+    addss         m2, [outq+36]
+    movss         m3, [outq+8]
+    movss [outq+ 56], m2
+    addss         m3, [outq+12]
+    movss [outq+ 32], m3
+    movss         m3, [outq+80]
+    movss [outq+  8], m5
+    movss [outq+ 80], m1
+    movss         m2, [outq+52]
+    movss         m5, [outq+120]
+    addss         m5, [outq+124]
+    movss         m1, [outq+64]
+    addss         m2, [outq+60]
+    addss         m0, m5
+    addss         m5, [outq+116]
+    mov    [outq+64], tmpd
+    addss         m6, m0
+    addss         m1, m6
+    mov         tmpd, [outq+12]
+    mov   [outq+ 96], tmpd
+    movss [outq+  4], m1
+    movss         m1, [outq+24]
+    movss [outq+ 24], m4
+    movss         m4, [outq+88]
+    addss         m4, [outq+92]
+    addss         m3, m4
+    addss         m4, [outq+84]
+    mov         tmpd, [outq+108]
+    addss         m1, [outq+28]
+    addss         m0, m1
+    addss         m1, m5
+    addss         m6, m3
+    addss         m3, m0
+    addss         m0, m7
+    addss         m5, [outq+20]
+    addss         m7, m1
+    movss [outq+ 12], m6
+    mov   [outq+112], tmpd
+    movss         m6, [outq+28]
+    movss [outq+ 28], m0
+    movss         m0, [outq+36]
+    movss [outq+ 36], m7
+    addss         m1, m4
+    movss         m7, [outq+116]
+    addss         m0, m2
+    addss         m7, [outq+124]
+    movss [outq+ 72], m0
+    movss         m0, [outq+44]
+    addss         m2, m0
+    movss [outq+ 44], m1
+    movss [outq+ 88], m2
+    addss         m0, [outq+60]
+    mov         tmpd, [outq+60]
+    mov   [outq+120], tmpd
+    movss [outq+104], m0
+    addss         m4, m5
+    addss         m5, [outq+68]
+    movss  [outq+52], m4
+    movss  [outq+60], m5
+    movss         m4, [outq+68]
+    movss         m5, [outq+20]
+    movss [outq+ 20], m3
+    addss         m5, m7
+    addss         m7, m6
+    addss         m4, m5
+    movss         m2, [outq+84]
+    addss         m2, [outq+92]
+    addss         m5, m2
+    movss [outq+ 68], m4
+    addss         m2, m7
+    movss         m4, [outq+76]
+    movss [outq+ 84], m2
+    movss [outq+ 76], m5
+    addss         m7, m4
+    addss         m6, [outq+124]
+    addss         m4, m6
+    addss         m6, [outq+92]
+    movss [outq+100], m4
+    movss [outq+108], m6
+    movss         m6, [outq+92]
+    movss  [outq+92], m7
+    addss         m6, [outq+124]
+    movss [outq+116], m6
+%endmacro
+
+%define BUTTERFLY  BUTTERFLY_AVX
+%define BUTTERFLY0 BUTTERFLY0_AVX
+
+INIT_YMM
 section .text align=16
+%ifdef HAVE_AVX
+; void ff_dct32_float_avx(FFTSample *out, const FFTSample *in)
+cglobal dct32_float_avx, 2,3,8, out, in, tmp
+    ; pass 1
+    vmovaps     m4, [inq+0]
+    vinsertf128 m5, m5, [inq+96], 1
+    vinsertf128 m5, m5, [inq+112], 0
+    vshufps     m5, m5, m5, 0x1b
+    BUTTERFLY   m4, m5, [ps_cos_vec], m6
+
+    vmovaps     m2, [inq+64]
+    vinsertf128 m6, m6, [inq+32], 1
+    vinsertf128 m6, m6, [inq+48], 0
+    vshufps     m6, m6, m6, 0x1b
+    BUTTERFLY   m2, m6, [ps_cos_vec+32], m0
+
+    ; pass 2
+
+    BUTTERFLY  m5, m6, [ps_cos_vec+64], m0
+    BUTTERFLY  m4, m2, [ps_cos_vec+64], m7
+
+
+    ; pass 3
+    vperm2f128  m3, m6, m4, 0x31
+    vperm2f128  m1, m6, m4, 0x20
+    vshufps     m3, m3, m3, 0x1b
+
+    BUTTERFLY   m1, m3, [ps_cos_vec+96], m6
+
+
+    vperm2f128  m4, m5, m2, 0x20
+    vperm2f128  m5, m5, m2, 0x31
+    vshufps     m5, m5, m5, 0x1b
+
+    BUTTERFLY   m4, m5, [ps_cos_vec+96], m6
+
+    ; pass 4
+    vmovaps m6, [ps_p1p1m1m1+0]
+    vmovaps m2, [ps_cos_vec+128]
+
+    BUTTERFLY2  m5, m6, m2, m7
+    BUTTERFLY2  m4, m6, m2, m7
+    BUTTERFLY2  m1, m6, m2, m7
+    BUTTERFLY2  m3, m6, m2, m7
+
+
+    ; pass 5
+    vshufps m6, m6, m6, 0xcc
+    vmovaps m2, [ps_cos_vec+160]
+
+    BUTTERFLY3  m5, m6, m2, m7
+    BUTTERFLY3  m4, m6, m2, m7
+    BUTTERFLY3  m1, m6, m2, m7
+    BUTTERFLY3  m3, m6, m2, m7
+
+    vperm2f128  m6, m3, m3, 0x31
+    vmovaps [outq], m3
+
+    vextractf128  [outq+64], m5, 1
+    vextractf128  [outq+32], m5, 0
+
+    vextractf128  [outq+80], m4, 1
+    vextractf128  [outq+48], m4, 0
+
+    vperm2f128  m0, m1, m1, 0x31
+    vmovaps [outq+96], m1
+
+    vzeroupper
+
+    ;    pass 6, no SIMD...
+INIT_XMM
+    PASS6_AND_PERMUTE
+    RET
+%endif
+
+%define BUTTERFLY  BUTTERFLY_SSE
+%define BUTTERFLY0 BUTTERFLY0_SSE
+
+INIT_XMM
 ; void ff_dct32_float_sse(FFTSample *out, const FFTSample *in)
 cglobal dct32_float_sse, 2,3,8, out, in, tmp
     ; pass 1
@@ -74,8 +282,7 @@ cglobal dct32_float_sse, 2,3,8, out, in, tmp
     movaps      m7, [inq+64]
     movaps      m4, [inq+48]
     shufps      m4, m4, 0x1b
-    BUTTERFLY   m7,  m4, [ps_cos_vec+48], m3
-
+    BUTTERFLY   m7, m4, [ps_cos_vec+32], m3
 
     ; pass 2
     movaps      m2, [ps_cos_vec+64]
@@ -92,7 +299,7 @@ cglobal dct32_float_sse, 2,3,8, out, in, tmp
     movaps      m4, [inq+80]
     movaps      m5, [inq+32]
     shufps      m5, m5, 0x1b
-    BUTTERFLY   m4, m5, [ps_cos_vec+32], m3
+    BUTTERFLY   m4, m5, [ps_cos_vec+48], m3
 
     ; pass 2
     BUTTERFLY   m0, m7, m2, m3
@@ -123,7 +330,7 @@ cglobal dct32_float_sse, 2,3,8, out, in, tmp
 
     ; pass 4
     movaps      m3, [ps_p1p1m1m1+0]
-    movaps      m2, [ps_cos_vec+112]
+    movaps      m2, [ps_cos_vec+128]
 
     BUTTERFLY2  m5, m3, m2, m1
 
@@ -148,7 +355,7 @@ cglobal dct32_float_sse, 2,3,8, out, in, tmp
     BUTTERFLY2  m0, m3, m2, m1
 
     ; pass 5
-    movaps      m2, [ps_cos_vec+128]
+    movaps      m2, [ps_cos_vec+160]
     shufps      m3, m3, 0xcc
 
     BUTTERFLY3  m5, m3, m2, m1
@@ -180,110 +387,5 @@ cglobal dct32_float_sse, 2,3,8, out, in, tmp
 
 
     ;    pass 6, no SIMD...
-    mov         tmpd, [outq+4]
-    movss         m7, [outq+72]
-    addss         m7, [outq+76]
-    movss         m3, [outq+56]
-    addss         m3, [outq+60]
-    addss         m4, m3
-    movss         m2, [outq+52]
-    addss         m2, m3
-    movss         m3, [outq+104]
-    addss         m3, [outq+108]
-    addss         m1, m3
-    addss         m5, m4
-    movss [outq+ 16], m1
-    movss         m1, [outq+100]
-    addss         m1, m3
-    movss         m3, [outq+40]
-    movss [outq+ 48], m1
-    addss         m3, [outq+44]
-    movss         m1, [outq+100]
-    addss         m4, m3
-    addss         m3, m2
-    addss         m1, [outq+108]
-    movss [outq+ 40], m3
-    addss         m2, [outq+36]
-    movss         m3, [outq+8]
-    movss [outq+ 56], m2
-    addss         m3, [outq+12]
-    movss [outq+ 32], m3
-    movss         m3, [outq+80]
-    movss [outq+  8], m5
-    movss [outq+ 80], m1
-    movss         m2, [outq+52]
-    movss         m5, [outq+120]
-    addss         m5, [outq+124]
-    movss         m1, [outq+64]
-    addss         m2, [outq+60]
-    addss         m0, m5
-    addss         m5, [outq+116]
-    mov    [outq+64], tmpd
-    addss         m6, m0
-    addss         m1, m6
-    mov         tmpd, [outq+12]
-    mov   [outq+ 96], tmpd
-    movss [outq+  4], m1
-    movss         m1, [outq+24]
-    movss [outq+ 24], m4
-    movss         m4, [outq+88]
-    addss         m4, [outq+92]
-    addss         m3, m4
-    addss         m4, [outq+84]
-    mov         tmpd, [outq+108]
-    addss         m1, [outq+28]
-    addss         m0, m1
-    addss         m1, m5
-    addss         m6, m3
-    addss         m3, m0
-    addss         m0, m7
-    addss         m5, [outq+20]
-    addss         m7, m1
-    movss [outq+ 12], m6
-    mov   [outq+112], tmpd
-    movss         m6, [outq+28]
-    movss [outq+ 28], m0
-    movss         m0, [outq+36]
-    movss [outq+ 36], m7
-    addss         m1, m4
-    movss         m7, [outq+116]
-    addss         m0, m2
-    addss         m7, [outq+124]
-    movss [outq+ 72], m0
-    movss         m0, [outq+44]
-    addss         m2, m0
-    movss [outq+ 44], m1
-    movss [outq+ 88], m2
-    addss         m0, [outq+60]
-    mov         tmpd, [outq+60]
-    mov   [outq+120], tmpd
-    movss [outq+104], m0
-    addss         m4, m5
-    addss         m5, [outq+68]
-    movss  [outq+52], m4
-    movss  [outq+60], m5
-    movss         m4, [outq+68]
-    movss         m5, [outq+20]
-    movss [outq+ 20], m3
-    addss         m5, m7
-    addss         m7, m6
-    addss         m4, m5
-    movss         m2, [outq+84]
-    addss         m2, [outq+92]
-    addss         m5, m2
-    movss [outq+ 68], m4
-    addss         m2, m7
-    movss         m4, [outq+76]
-    movss [outq+ 84], m2
-    movss [outq+ 76], m5
-    addss         m7, m4
-    addss         m6, [outq+124]
-    addss         m4, m6
-    addss         m6, [outq+92]
-    movss [outq+100], m4
-    movss [outq+108], m6
-    movss         m6, [outq+92]
-    movss  [outq+92], m7
-    addss         m6, [outq+124]
-    movss [outq+116], m6
+    PASS6_AND_PERMUTE
     RET
diff --git a/libavcodec/x86/fft.c b/libavcodec/x86/fft.c
index b29412c1dc..8eef4214a2 100644
--- a/libavcodec/x86/fft.c
+++ b/libavcodec/x86/fft.c
@@ -57,7 +57,9 @@ av_cold void ff_fft_init_mmx(FFTContext *s)
 av_cold void ff_dct_init_mmx(DCTContext *s)
 {
     int has_vectors = av_get_cpu_flags();
-    if (has_vectors & AV_CPU_FLAG_SSE && HAVE_SSE)
+    if (has_vectors & AV_CPU_FLAG_AVX && HAVE_AVX)
+        s->dct32 = ff_dct32_float_avx;
+    else if (has_vectors & AV_CPU_FLAG_SSE && HAVE_SSE)
         s->dct32 = ff_dct32_float_sse;
 }
 #endif
diff --git a/libavcodec/x86/fft.h b/libavcodec/x86/fft.h
index c6379050d9..0ade2b2e7b 100644
--- a/libavcodec/x86/fft.h
+++ b/libavcodec/x86/fft.h
@@ -35,5 +35,6 @@ void ff_imdct_calc_sse(FFTContext *s, FFTSample *output, const FFTSample *input)
 void ff_imdct_half_sse(FFTContext *s, FFTSample *output, const FFTSample *input);
 void ff_imdct_half_avx(FFTContext *s, FFTSample *output, const FFTSample *input);
 void ff_dct32_float_sse(FFTSample *out, const FFTSample *in);
+void ff_dct32_float_avx(FFTSample *out, const FFTSample *in);
 
 #endif /* AVCODEC_X86_FFT_H */