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| author | Måns Rullgård <mans@mansr.com> | 2010-07-03 18:36:10 +0000 |
|---|---|---|
| committer | Måns Rullgård <mans@mansr.com> | 2010-07-03 18:36:10 +0000 |
| commit | a075902f3d98ed33cd5ee0e746978d89999195a3 (patch) | |
| tree | c91576b90ec185db6532e369669301f13a19355b /libavcodec/ppc/fft_altivec_s.S | |
| parent | f054aaf731e5c0cad4967addb59360ecb24b1d47 (diff) | |
| download | ffmpeg-a075902f3d98ed33cd5ee0e746978d89999195a3.tar.gz | |
PPC: add _interleave versions of fft{4,6,16}_altivec
This removes the need for a post-swizzle with the small FFTs.
Originally committed as revision 24025 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/ppc/fft_altivec_s.S')
| -rw-r--r-- | libavcodec/ppc/fft_altivec_s.S | 60 |
1 files changed, 52 insertions, 8 deletions
diff --git a/libavcodec/ppc/fft_altivec_s.S b/libavcodec/ppc/fft_altivec_s.S index ed7b045e40..4c265c554e 100644 --- a/libavcodec/ppc/fft_altivec_s.S +++ b/libavcodec/ppc/fft_altivec_s.S @@ -143,28 +143,53 @@ vaddfp \d0,\s0,\s1 .endm -fft4_altivec: +.macro zip d0,d1,s0,s1 + vmrghw \d0,\s0,\s1 + vmrglw \d1,\s0,\s1 +.endm + +.macro def_fft4 interleave +fft4\interleave\()_altivec: lvx v0, 0,r3 lvx v1,r9,r3 FFT4 v0,v1,v2,v3 +.ifnb \interleave + zip v0,v1,v2,v3 + stvx v0, 0,r3 + stvx v1,r9,r3 +.else stvx v2, 0,r3 stvx v3,r9,r3 +.endif blr +.endm -fft8_altivec: +.macro def_fft8 interleave +fft8\interleave\()_altivec: addi r4,r3,32 lvx v0, 0,r3 lvx v1,r9,r3 lvx v2, 0,r4 lvx v3,r9,r4 FFT8 v0,v1,v2,v3,v4,v5,v6,v7,v8 +.ifnb \interleave + zip v4,v5,v0,v1 + zip v6,v7,v2,v3 + stvx v4, 0,r3 + stvx v5,r9,r3 + stvx v6, 0,r4 + stvx v7,r9,r4 +.else stvx v0, 0,r3 stvx v1,r9,r3 stvx v2, 0,r4 stvx v3,r9,r4 +.endif blr +.endm -fft16_altivec: +.macro def_fft16 interleave +fft16\interleave\()_altivec: addi r5,r3,64 addi r6,r3,96 addi r4,r3,32 @@ -190,17 +215,33 @@ fft16_altivec: BF v11,v13,v9,v11 BF v0,v4,v0,v10 BF v3,v7,v3,v12 + BF v1,v5,v1,v11 + BF v2,v6,v2,v13 +.ifnb \interleave + zip v8, v9,v0,v1 + zip v10,v11,v2,v3 + zip v12,v13,v4,v5 + zip v14,v15,v6,v7 + stvx v8, 0,r3 + stvx v9,r9,r3 + stvx v10, 0,r4 + stvx v11,r9,r4 + stvx v12, 0,r5 + stvx v13,r9,r5 + stvx v14, 0,r6 + stvx v15,r9,r6 +.else stvx v0, 0,r3 stvx v4, 0,r5 stvx v3,r9,r4 stvx v7,r9,r6 - BF v1,v5,v1,v11 - BF v2,v6,v2,v13 stvx v1,r9,r3 stvx v5,r9,r5 stvx v2, 0,r4 stvx v6, 0,r6 +.endif blr +.endm // void pass(float *z, float *wre, int n) .macro PASS interleave, suffix @@ -297,6 +338,9 @@ fft\n\suffix\()_altivec: .macro DECL_FFTS interleave, suffix .text + def_fft4 \suffix + def_fft8 \suffix + def_fft16 \suffix PASS \interleave, \suffix DECL_FFT \suffix, 5, 32, 16, 8 DECL_FFT \suffix, 6, 64, 32, 16 @@ -314,9 +358,9 @@ fft\n\suffix\()_altivec: .rodata .global EXTERN_ASM\()ff_fft_dispatch\suffix\()_altivec EXTERN_ASM\()ff_fft_dispatch\suffix\()_altivec: - PTR fft4_altivec - PTR fft8_altivec - PTR fft16_altivec + PTR fft4\suffix\()_altivec + PTR fft8\suffix\()_altivec + PTR fft16\suffix\()_altivec PTR fft32\suffix\()_altivec PTR fft64\suffix\()_altivec PTR fft128\suffix\()_altivec |