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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:13:33 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:13:33 +0000
commit086c044dc34dfc0f74fbe41f4ecb402b2cd34884 (patch)
treea4f824bd33cb075dd5aa3eb5a0a94af221bbe83a /media/libopus/src/mlp.c
parentAdding debian version 124.0.1-1. (diff)
downloadfirefox-086c044dc34dfc0f74fbe41f4ecb402b2cd34884.tar.xz
firefox-086c044dc34dfc0f74fbe41f4ecb402b2cd34884.zip
Merging upstream version 125.0.1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'media/libopus/src/mlp.c')
-rw-r--r--media/libopus/src/mlp.c42
1 files changed, 15 insertions, 27 deletions
diff --git a/media/libopus/src/mlp.c b/media/libopus/src/mlp.c
index 964c6a98f6..e658ccde0d 100644
--- a/media/libopus/src/mlp.c
+++ b/media/libopus/src/mlp.c
@@ -33,35 +33,23 @@
#include "opus_types.h"
#include "opus_defines.h"
#include "arch.h"
-#include "tansig_table.h"
#include "mlp.h"
+#define fmadd(a, b, c) ((a)*(b)+(c))
static OPUS_INLINE float tansig_approx(float x)
{
- int i;
- float y, dy;
- float sign=1;
- /* Tests are reversed to catch NaNs */
- if (!(x<8))
- return 1;
- if (!(x>-8))
- return -1;
-#ifndef FIXED_POINT
- /* Another check in case of -ffast-math */
- if (celt_isnan(x))
- return 0;
-#endif
- if (x<0)
- {
- x=-x;
- sign=-1;
- }
- i = (int)floor(.5f+25*x);
- x -= .04f*i;
- y = tansig_table[i];
- dy = 1-y*y;
- y = y + x*dy*(1 - y*x);
- return sign*y;
+ const float N0 = 952.52801514f;
+ const float N1 = 96.39235687f;
+ const float N2 = 0.60863042f;
+ const float D0 = 952.72399902f;
+ const float D1 = 413.36801147f;
+ const float D2 = 11.88600922f;
+ float X2, num, den;
+ X2 = x*x;
+ num = fmadd(fmadd(N2, X2, N1), X2, N0);
+ den = fmadd(fmadd(D2, X2, D1), X2, D0);
+ num = num*x/den;
+ return MAX32(-1.f, MIN32(1.f, num));
}
static OPUS_INLINE float sigmoid_approx(float x)
@@ -79,7 +67,7 @@ static void gemm_accum(float *out, const opus_int8 *weights, int rows, int cols,
}
}
-void compute_dense(const DenseLayer *layer, float *output, const float *input)
+void analysis_compute_dense(const AnalysisDenseLayer *layer, float *output, const float *input)
{
int i;
int N, M;
@@ -101,7 +89,7 @@ void compute_dense(const DenseLayer *layer, float *output, const float *input)
}
}
-void compute_gru(const GRULayer *gru, float *state, const float *input)
+void analysis_compute_gru(const AnalysisGRULayer *gru, float *state, const float *input)
{
int i;
int N, M;