1 files changed, 113 insertions, 0 deletions
diff --git a/media/libeffects/lvm/lib/Common/src/DelayAllPass_Sat_32x16To32.c b/media/libeffects/lvm/lib/Common/src/DelayAllPass_Sat_32x16To32.c
new file mode 100755
index 0000000..cda72ac
--- /dev/null
+++ b/media/libeffects/lvm/lib/Common/src/DelayAllPass_Sat_32x16To32.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2004-2010 NXP Software
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/************************************************************************/
+/*                                                                      */
+/*     Project::                                                        */
+/*     $Author: beq07716 $*/
+/*     $Revision: 1000 $*/
+/*     $Date: 2010-06-28 13:08:20 +0200 (Mon, 28 Jun 2010) $*/
+/*                                                                      */
+/************************************************************************/
+
+/**********************************************************************************
+   INCLUDE FILES
+***********************************************************************************/
+
+#include "LVM_Types.h"
+#include "LVM_Macros.h"
+#include "VectorArithmetic.h"
+
+/**********************************************************************************
+   FUNCTION DelayAllPass_32x32
+***********************************************************************************/
+
+void DelayAllPass_Sat_32x16To32(  LVM_INT32  *delay,                    /* Delay buffer */
+                                  LVM_UINT16 size,                      /* Delay size */
+                                  LVM_INT16 coeff,                      /* All pass filter coefficient */
+                                  LVM_UINT16 DelayOffset,               /* Simple delay offset */
+                                  LVM_UINT16 *pAllPassOffset,           /* All pass filter delay offset */
+                                  LVM_INT32  *dst,                      /* Source/destination */
+                                  LVM_INT16 n)                          /* Number of  samples */
+{
+    LVM_INT16   i;
+    LVM_UINT16   AllPassOffset = *pAllPassOffset;
+    LVM_INT32    temp;
+    LVM_INT32    a,b,c;
+
+    for (i = 0; i < n; i++)
+    {
+
+        MUL32x16INTO32(delay[AllPassOffset], coeff, temp, 15)
+        a = temp;
+        b = delay[DelayOffset];
+        DelayOffset++;
+
+        c = a + b;
+        if ((((c ^ a) & (c ^ b)) >> 31) != 0)  /* overflow / underflow */
+        {
+            if(a < 0)
+            {
+                c = 0x80000000l;
+            }
+            else
+            {
+                c = 0x7FFFFFFFl;
+            }
+        }
+        *dst = c;
+        dst++;
+
+
+        MUL32x16INTO32(c, -coeff, temp, 15)
+        a = temp;
+        b = delay[AllPassOffset];
+        c = a + b;
+        if ((((c ^ a) & (c ^ b)) >> 31)!=0)  /* overflow / underflow */
+        {
+            if(a < 0)
+            {
+                c = 0x80000000l;
+            }
+            else
+            {
+                c = 0x7FFFFFFFl;
+            }
+        }
+        delay[AllPassOffset] = c;
+        AllPassOffset++;
+
+        /* Make the delay buffer a circular buffer */
+        if (DelayOffset >= size)
+        {
+            DelayOffset = 0;
+        }
+
+        if (AllPassOffset >= size)
+        {
+            AllPassOffset = 0;
+        }
+    }
+
+    /* Update the offset */
+    *pAllPassOffset = AllPassOffset;
+
+    return;
+}
+
+/**********************************************************************************/
+