Move per-arch fft init bits into the corresponding subdirs

Originally committed as revision 19864 to svn://svn.ffmpeg.org/ffmpeg/trunk

9 files changed, 139 insertions, 50 deletions

diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 68387d614f..69f9702d9a 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -465,6 +465,7 @@ OBJS-$(HAVE_MMX)                       += x86/cpuid.o                   \
                                           x86/dnxhd_mmx.o               \
                                           x86/dsputil_mmx.o             \
                                           x86/fdct_mmx.o                \
+                                          x86/fft.o                     \
                                           x86/idct_mmx_xvid.o           \
                                           x86/idct_sse2_xvid.o          \
                                           x86/motion_est_mmx.o          \
@@ -480,6 +481,7 @@ OBJS-$(ARCH_ALPHA)                     += alpha/dsputil_alpha.o         \
 
 OBJS-$(ARCH_ARM)                       += arm/dsputil_arm.o             \
                                           arm/dsputil_arm_s.o           \
+                                          arm/fft_init_arm.o            \
                                           arm/jrevdct_arm.o             \
                                           arm/mpegvideo_arm.o           \
                                           arm/simple_idct_arm.o         \
diff --git a/libavcodec/arm/fft_init_arm.c b/libavcodec/arm/fft_init_arm.c
new file mode 100644
index 0000000000..6bb3686eab
--- /dev/null
+++ b/libavcodec/arm/fft_init_arm.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
+ *
+ * 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 "libavcodec/dsputil.h"
+
+void ff_fft_permute_neon(FFTContext *s, FFTComplex *z);
+void ff_fft_calc_neon(FFTContext *s, FFTComplex *z);
+
+void ff_imdct_calc_neon(MDCTContext *s, FFTSample *output, const FFTSample *input);
+void ff_imdct_half_neon(MDCTContext *s, FFTSample *output, const FFTSample *input);
+void ff_mdct_calc_neon(MDCTContext *s, FFTSample *output, const FFTSample *input);
+
+av_cold void ff_fft_init_arm(FFTContext *s)
+{
+    if (HAVE_NEON) {
+        s->fft_permute  = ff_fft_permute_neon;
+        s->fft_calc     = ff_fft_calc_neon;
+        s->imdct_calc   = ff_imdct_calc_neon;
+        s->imdct_half   = ff_imdct_half_neon;
+        s->mdct_calc    = ff_mdct_calc_neon;
+    }
+}
diff --git a/libavcodec/dsputil.h b/libavcodec/dsputil.h
index cdfdb9bd14..d100d5f731 100644
--- a/libavcodec/dsputil.h
+++ b/libavcodec/dsputil.h
@@ -683,6 +683,7 @@ typedef struct FFTContext {
     void (*imdct_calc)(struct MDCTContext *s, FFTSample *output, const FFTSample *input);
     void (*imdct_half)(struct MDCTContext *s, FFTSample *output, const FFTSample *input);
     void (*mdct_calc)(struct MDCTContext *s, FFTSample *output, const FFTSample *input);
+    int split_radix;
 } FFTContext;
 
 extern FFTSample* const ff_cos_tabs[13];
@@ -694,14 +695,11 @@ extern FFTSample* const ff_cos_tabs[13];
  */
 int ff_fft_init(FFTContext *s, int nbits, int inverse);
 void ff_fft_permute_c(FFTContext *s, FFTComplex *z);
-void ff_fft_permute_sse(FFTContext *s, FFTComplex *z);
-void ff_fft_permute_neon(FFTContext *s, FFTComplex *z);
 void ff_fft_calc_c(FFTContext *s, FFTComplex *z);
-void ff_fft_calc_sse(FFTContext *s, FFTComplex *z);
-void ff_fft_calc_3dn(FFTContext *s, FFTComplex *z);
-void ff_fft_calc_3dn2(FFTContext *s, FFTComplex *z);
-void ff_fft_calc_altivec(FFTContext *s, FFTComplex *z);
-void ff_fft_calc_neon(FFTContext *s, FFTComplex *z);
+
+void ff_fft_init_altivec(FFTContext *s);
+void ff_fft_init_mmx(FFTContext *s);
+void ff_fft_init_neon(FFTContext *s);
 
 /**
  * Do the permutation needed BEFORE calling ff_fft_calc().
@@ -774,15 +772,6 @@ int ff_mdct_init(MDCTContext *s, int nbits, int inverse, double scale);
 void ff_imdct_calc_c(MDCTContext *s, FFTSample *output, const FFTSample *input);
 void ff_imdct_half_c(MDCTContext *s, FFTSample *output, const FFTSample *input);
 void ff_mdct_calc_c(MDCTContext *s, FFTSample *output, const FFTSample *input);
-void ff_imdct_calc_3dn(MDCTContext *s, FFTSample *output, const FFTSample *input);
-void ff_imdct_half_3dn(MDCTContext *s, FFTSample *output, const FFTSample *input);
-void ff_imdct_calc_3dn2(MDCTContext *s, FFTSample *output, const FFTSample *input);
-void ff_imdct_half_3dn2(MDCTContext *s, FFTSample *output, const FFTSample *input);
-void ff_imdct_calc_sse(MDCTContext *s, FFTSample *output, const FFTSample *input);
-void ff_imdct_half_sse(MDCTContext *s, FFTSample *output, const FFTSample *input);
-void ff_imdct_calc_neon(MDCTContext *s, FFTSample *output, const FFTSample *input);
-void ff_imdct_half_neon(MDCTContext *s, FFTSample *output, const FFTSample *input);
-void ff_mdct_calc_neon(MDCTContext *s, FFTSample *output, const FFTSample *input);
 void ff_mdct_end(MDCTContext *s);
 
 /* Real Discrete Fourier Transform */
diff --git a/libavcodec/fft.c b/libavcodec/fft.c
index 538f66858b..c827139faf 100644
--- a/libavcodec/fft.c
+++ b/libavcodec/fft.c
@@ -62,7 +62,6 @@ av_cold int ff_fft_init(FFTContext *s, int nbits, int inverse)
 {
     int i, j, m, n;
     float alpha, c1, s1, s2;
-    int split_radix = 1;
     int av_unused has_vectors;
 
     if (nbits < 2 || nbits > 16)
@@ -87,41 +86,13 @@ av_cold int ff_fft_init(FFTContext *s, int nbits, int inverse)
     s->imdct_half  = ff_imdct_half_c;
     s->mdct_calc   = ff_mdct_calc_c;
     s->exptab1     = NULL;
+    s->split_radix = 1;
 
-#if HAVE_MMX && HAVE_YASM
-    has_vectors = mm_support();
-    if (has_vectors & FF_MM_SSE && HAVE_SSE) {
-        /* SSE for P3/P4/K8 */
-        s->imdct_calc  = ff_imdct_calc_sse;
-        s->imdct_half  = ff_imdct_half_sse;
-        s->fft_permute = ff_fft_permute_sse;
-        s->fft_calc    = ff_fft_calc_sse;
-    } else if (has_vectors & FF_MM_3DNOWEXT && HAVE_AMD3DNOWEXT) {
-        /* 3DNowEx for K7 */
-        s->imdct_calc = ff_imdct_calc_3dn2;
-        s->imdct_half = ff_imdct_half_3dn2;
-        s->fft_calc   = ff_fft_calc_3dn2;
-    } else if (has_vectors & FF_MM_3DNOW && HAVE_AMD3DNOW) {
-        /* 3DNow! for K6-2/3 */
-        s->imdct_calc = ff_imdct_calc_3dn;
-        s->imdct_half = ff_imdct_half_3dn;
-        s->fft_calc   = ff_fft_calc_3dn;
-    }
-#elif HAVE_ALTIVEC
-    has_vectors = mm_support();
-    if (has_vectors & FF_MM_ALTIVEC) {
-        s->fft_calc = ff_fft_calc_altivec;
-        split_radix = 0;
-    }
-#elif HAVE_NEON
-    s->fft_permute = ff_fft_permute_neon;
-    s->fft_calc    = ff_fft_calc_neon;
-    s->imdct_calc  = ff_imdct_calc_neon;
-    s->imdct_half  = ff_imdct_half_neon;
-    s->mdct_calc   = ff_mdct_calc_neon;
-#endif
+    if (ARCH_ARM)     ff_fft_init_arm(s);
+    if (HAVE_ALTIVEC) ff_fft_init_altivec(s);
+    if (HAVE_MMX)     ff_fft_init_mmx(s);
 
-    if (split_radix) {
+    if (s->split_radix) {
         for(j=4; j<=nbits; j++) {
             int m = 1<<j;
             double freq = 2*M_PI/m;
diff --git a/libavcodec/ppc/fft_altivec.c b/libavcodec/ppc/fft_altivec.c
index 7391131a73..83b2b7f07b 100644
--- a/libavcodec/ppc/fft_altivec.c
+++ b/libavcodec/ppc/fft_altivec.c
@@ -133,3 +133,9 @@ POWERPC_PERF_START_COUNT(altivec_fft_num, s->nbits >= 6);
 
 POWERPC_PERF_STOP_COUNT(altivec_fft_num, s->nbits >= 6);
 }
+
+av_cold void ff_fft_init_altivec(FFTContext *s)
+{
+    s->fft_calc = ff_fft_calc_altivec;
+    s->split_radix = 0;
+}
diff --git a/libavcodec/x86/fft.c b/libavcodec/x86/fft.c
new file mode 100644
index 0000000000..2c46c6361b
--- /dev/null
+++ b/libavcodec/x86/fft.c
@@ -0,0 +1,44 @@
+/*
+ * 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 "libavcodec/dsputil.h"
+#include "fft.h"
+
+av_cold void ff_fft_init_mmx(FFTContext *s)
+{
+#if HAVE_YASM
+    int has_vectors = mm_support();
+    if (has_vectors & FF_MM_SSE && HAVE_SSE) {
+        /* SSE for P3/P4/K8 */
+        s->imdct_calc  = ff_imdct_calc_sse;
+        s->imdct_half  = ff_imdct_half_sse;
+        s->fft_permute = ff_fft_permute_sse;
+        s->fft_calc    = ff_fft_calc_sse;
+    } else if (has_vectors & FF_MM_3DNOWEXT && HAVE_AMD3DNOWEXT) {
+        /* 3DNowEx for K7 */
+        s->imdct_calc = ff_imdct_calc_3dn2;
+        s->imdct_half = ff_imdct_half_3dn2;
+        s->fft_calc   = ff_fft_calc_3dn2;
+    } else if (has_vectors & FF_MM_3DNOW && HAVE_AMD3DNOW) {
+        /* 3DNow! for K6-2/3 */
+        s->imdct_calc = ff_imdct_calc_3dn;
+        s->imdct_half = ff_imdct_half_3dn;
+        s->fft_calc   = ff_fft_calc_3dn;
+    }
+#endif
+}
diff --git a/libavcodec/x86/fft.h b/libavcodec/x86/fft.h
new file mode 100644
index 0000000000..1345144741
--- /dev/null
+++ b/libavcodec/x86/fft.h
@@ -0,0 +1,36 @@
+/*
+ * 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
+ */
+
+#ifndef AVCODEC_X86_FFT_H
+#define AVCODEC_X86_FFT_H
+
+#include "libavcodec/dsputil.h"
+
+void ff_fft_permute_sse(FFTContext *s, FFTComplex *z);
+void ff_fft_calc_sse(FFTContext *s, FFTComplex *z);
+void ff_fft_calc_3dn(FFTContext *s, FFTComplex *z);
+void ff_fft_calc_3dn2(FFTContext *s, FFTComplex *z);
+
+void ff_imdct_calc_3dn(MDCTContext *s, FFTSample *output, const FFTSample *input);
+void ff_imdct_half_3dn(MDCTContext *s, FFTSample *output, const FFTSample *input);
+void ff_imdct_calc_3dn2(MDCTContext *s, FFTSample *output, const FFTSample *input);
+void ff_imdct_half_3dn2(MDCTContext *s, FFTSample *output, const FFTSample *input);
+void ff_imdct_calc_sse(MDCTContext *s, FFTSample *output, const FFTSample *input);
+void ff_imdct_half_sse(MDCTContext *s, FFTSample *output, const FFTSample *input);
+
+#endif
diff --git a/libavcodec/x86/fft_3dn2.c b/libavcodec/x86/fft_3dn2.c
index 1f30edc99d..c20e2dd2c8 100644
--- a/libavcodec/x86/fft_3dn2.c
+++ b/libavcodec/x86/fft_3dn2.c
@@ -21,6 +21,7 @@
 
 #include "libavutil/x86_cpu.h"
 #include "libavcodec/dsputil.h"
+#include "fft.h"
 
 DECLARE_ALIGNED_8(static const int, m1m1[2]) = { 1<<31, 1<<31 };
 
diff --git a/libavcodec/x86/fft_sse.c b/libavcodec/x86/fft_sse.c
index e6cb3dce65..cf2c48b1fa 100644
--- a/libavcodec/x86/fft_sse.c
+++ b/libavcodec/x86/fft_sse.c
@@ -21,6 +21,7 @@
 
 #include "libavutil/x86_cpu.h"
 #include "libavcodec/dsputil.h"
+#include "fft.h"
 
 DECLARE_ALIGNED(16, static const int, m1m1m1m1[4]) =
     { 1 << 31, 1 << 31, 1 << 31, 1 << 31 };