From 1978b143ebdffb885fbfed1f9c0c40c7ba36b3de Mon Sep 17 00:00:00 2001
From: Lynne <dev@lynne.ee>
Date: Sat, 10 Apr 2021 03:53:38 +0200
Subject: checkasm: add av_tx FFT SIMD testing code

This sadly required making changes to the code itself,
due to the same context needing to be reused for both versions.
The lookup table had to be duplicated for both versions.
---
 libavutil/tx_template.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

(limited to 'libavutil/tx_template.c')

diff --git a/libavutil/tx_template.c b/libavutil/tx_template.c
index a68a84dcd5..cad66a8bc0 100644
--- a/libavutil/tx_template.c
+++ b/libavutil/tx_template.c
@@ -593,7 +593,7 @@ static void compound_fft_##N##xM(AVTXContext *s, void *_out,                   \
     for (int i = 0; i < m; i++) {                                              \
         for (int j = 0; j < N; j++)                                            \
             fft##N##in[j] = in[in_map[i*N + j]];                               \
-        fft##N(s->tmp + s->revtab[i], fft##N##in, m);                          \
+        fft##N(s->tmp + s->revtab_c[i], fft##N##in, m);                        \
     }                                                                          \
                                                                                \
     for (int i = 0; i < N; i++)                                                \
@@ -624,16 +624,16 @@ static void split_radix_fft(AVTXContext *s, void *_out, void *_in,
 
         do {
             tmp = out[src];
-            dst = s->revtab[src];
+            dst = s->revtab_c[src];
             do {
                 FFSWAP(FFTComplex, tmp, out[dst]);
-                dst = s->revtab[dst];
+                dst = s->revtab_c[dst];
             } while (dst != src); /* Can be > as well, but is less predictable */
             out[dst] = tmp;
         } while ((src = *inplace_idx++));
     } else {
         for (int i = 0; i < m; i++)
-            out[i] = in[s->revtab[i]];
+            out[i] = in[s->revtab_c[i]];
     }
 
     fft_dispatch[mb](out);
@@ -685,7 +685,7 @@ static void compound_imdct_##N##xM(AVTXContext *s, void *_dst, void *_src,     \
             FFTComplex tmp = { in2[-k*stride], in1[k*stride] };                \
             CMUL3(fft##N##in[j], tmp, exp[k >> 1]);                            \
         }                                                                      \
-        fft##N(s->tmp + s->revtab[i], fft##N##in, m);                          \
+        fft##N(s->tmp + s->revtab_c[i], fft##N##in, m);                        \
     }                                                                          \
                                                                                \
     for (int i = 0; i < N; i++)                                                \
@@ -733,7 +733,7 @@ static void compound_mdct_##N##xM(AVTXContext *s, void *_dst, void *_src,      \
             CMUL(fft##N##in[j].im, fft##N##in[j].re, tmp.re, tmp.im,           \
                  exp[k >> 1].re, exp[k >> 1].im);                              \
         }                                                                      \
-        fft##N(s->tmp + s->revtab[i], fft##N##in, m);                          \
+        fft##N(s->tmp + s->revtab_c[i], fft##N##in, m);                        \
     }                                                                          \
                                                                                \
     for (int i = 0; i < N; i++)                                                \
@@ -772,7 +772,7 @@ static void monolithic_imdct(AVTXContext *s, void *_dst, void *_src,
 
     for (int i = 0; i < m; i++) {
         FFTComplex tmp = { in2[-2*i*stride], in1[2*i*stride] };
-        CMUL3(z[s->revtab[i]], tmp, exp[i]);
+        CMUL3(z[s->revtab_c[i]], tmp, exp[i]);
     }
 
     fftp(z);
@@ -806,7 +806,7 @@ static void monolithic_mdct(AVTXContext *s, void *_dst, void *_src,
             tmp.re = FOLD(-src[ len4 + k], -src[5*len4 - 1 - k]);
             tmp.im = FOLD( src[-len4 + k], -src[1*len3 - 1 - k]);
         }
-        CMUL(z[s->revtab[i]].im, z[s->revtab[i]].re, tmp.re, tmp.im,
+        CMUL(z[s->revtab_c[i]].im, z[s->revtab_c[i]].re, tmp.re, tmp.im,
              exp[i].re, exp[i].im);
     }
 
@@ -1005,7 +1005,7 @@ int TX_NAME(ff_tx_init_mdct_fft)(AVTXContext *s, av_tx_fn *tx,
         if (flags & AV_TX_INPLACE) {
             if (is_mdct) /* In-place MDCTs are not supported yet */
                 return AVERROR(ENOSYS);
-            if ((err = ff_tx_gen_ptwo_inplace_revtab_idx(s)))
+            if ((err = ff_tx_gen_ptwo_inplace_revtab_idx(s, s->revtab_c)))
                 return err;
         }
         for (int i = 4; i <= av_log2(m); i++)
-- 
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