X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavutil%2Ffloat_dsp.c;h=3707e066947b8c2f7e84368b93be5c5f618cef13;hb=06e7a20244453a53db9b83d798b116a9a9f64bdc;hp=22139defe4035b73ade7454b24c6832b46f3be9a;hpb=ac7eb4cb20ea84cfc911794722695d501b354ee9;p=ffmpeg

diff --git a/libavutil/float_dsp.c b/libavutil/float_dsp.c
index 22139defe40..3707e066947 100644
--- a/libavutil/float_dsp.c
+++ b/libavutil/float_dsp.c
@@ -17,7 +17,7 @@
  */
 
 #include "config.h"
-
+#include "attributes.h"
 #include "float_dsp.h"
 
 static void vector_fmul_c(float *dst, const float *src0, const float *src1,
@@ -52,12 +52,77 @@ static void vector_dmul_scalar_c(double *dst, const double *src, double mul,
         dst[i] = src[i] * mul;
 }
 
-void avpriv_float_dsp_init(AVFloatDSPContext *fdsp, int bit_exact)
+static void vector_fmul_window_c(float *dst, const float *src0,
+                                 const float *src1, const float *win, int len)
+{
+    int i, j;
+
+    dst  += len;
+    win  += len;
+    src0 += len;
+
+    for (i = -len, j = len - 1; i < 0; i++, j--) {
+        float s0 = src0[i];
+        float s1 = src1[j];
+        float wi = win[i];
+        float wj = win[j];
+        dst[i] = s0 * wj - s1 * wi;
+        dst[j] = s0 * wi + s1 * wj;
+    }
+}
+
+static void vector_fmul_add_c(float *dst, const float *src0, const float *src1,
+                              const float *src2, int len){
+    int i;
+
+    for (i = 0; i < len; i++)
+        dst[i] = src0[i] * src1[i] + src2[i];
+}
+
+static void vector_fmul_reverse_c(float *dst, const float *src0,
+                                  const float *src1, int len)
+{
+    int i;
+
+    src1 += len-1;
+    for (i = 0; i < len; i++)
+        dst[i] = src0[i] * src1[-i];
+}
+
+static void butterflies_float_c(float *restrict v1, float *restrict v2,
+                                int len)
+{
+    int i;
+
+    for (i = 0; i < len; i++) {
+        float t = v1[i] - v2[i];
+        v1[i] += v2[i];
+        v2[i] = t;
+    }
+}
+
+float avpriv_scalarproduct_float_c(const float *v1, const float *v2, int len)
+{
+    float p = 0.0;
+    int i;
+
+    for (i = 0; i < len; i++)
+        p += v1[i] * v2[i];
+
+    return p;
+}
+
+av_cold void avpriv_float_dsp_init(AVFloatDSPContext *fdsp, int bit_exact)
 {
     fdsp->vector_fmul = vector_fmul_c;
     fdsp->vector_fmac_scalar = vector_fmac_scalar_c;
     fdsp->vector_fmul_scalar = vector_fmul_scalar_c;
     fdsp->vector_dmul_scalar = vector_dmul_scalar_c;
+    fdsp->vector_fmul_window = vector_fmul_window_c;
+    fdsp->vector_fmul_add = vector_fmul_add_c;
+    fdsp->vector_fmul_reverse = vector_fmul_reverse_c;
+    fdsp->butterflies_float = butterflies_float_c;
+    fdsp->scalarproduct_float = avpriv_scalarproduct_float_c;
 
 #if ARCH_ARM
     ff_float_dsp_init_arm(fdsp);