From a67c21f093202f142438689d3f7cfbdf4ea82eea Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Sun, 28 Oct 2007 19:13:50 +0000
Subject: merge 'lennart' branch back into trunk.

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1971 fefdeb5f-60dc-0310-8127-8f9354f1896f
---
 src/pulsecore/sconv-s16le.c | 65 +++++++++++++++++++++++++++++----------------
 1 file changed, 42 insertions(+), 23 deletions(-)

(limited to 'src/pulsecore/sconv-s16le.c')

diff --git a/src/pulsecore/sconv-s16le.c b/src/pulsecore/sconv-s16le.c
index 5f45ef66..6925052c 100644
--- a/src/pulsecore/sconv-s16le.c
+++ b/src/pulsecore/sconv-s16le.c
@@ -25,12 +25,12 @@
 #include <config.h>
 #endif
 
-#include <assert.h>
 #include <inttypes.h>
 
 #include <liboil/liboilfuncs.h>
 
 #include <pulsecore/sconv.h>
+#include <pulsecore/macro.h>
 #include <pulsecore/log.h>
 
 #include "endianmacros.h"
@@ -38,11 +38,11 @@
 #include "sconv-s16le.h"
 
 #ifndef INT16_FROM
-#define INT16_FROM INT16_FROM_LE
+#define INT16_FROM PA_INT16_FROM_LE
 #endif
 
 #ifndef INT16_TO
-#define INT16_TO INT16_TO_LE
+#define INT16_TO PA_INT16_TO_LE
 #endif
 
 #ifndef SWAP_WORDS
@@ -53,32 +53,28 @@
 #endif
 #endif
 
-void pa_sconv_s16le_to_float32ne(unsigned n, const void *a, float *b) {
-    const int16_t *ca = a;
-
-    assert(a);
-    assert(b);
+void pa_sconv_s16le_to_float32ne(unsigned n, const int16_t *a, float *b) {
+    pa_assert(a);
+    pa_assert(b);
 
 #if SWAP_WORDS == 1
 
     for (; n > 0; n--) {
-        int16_t s = *(ca++);
+        int16_t s = *(a++);
         *(b++) = ((float) INT16_FROM(s))/0x7FFF;
     }
 
 #else
 {
     static const double add = 0, factor = 1.0/0x7FFF;
-    oil_scaleconv_f32_s16(b, ca, n, &add, &factor);
+    oil_scaleconv_f32_s16(b, a, n, &add, &factor);
 }
 #endif
 }
 
-void pa_sconv_s16le_from_float32ne(unsigned n, const float *a, void *b) {
-    int16_t *cb = b;
-
-    assert(a);
-    assert(b);
+void pa_sconv_s16le_from_float32ne(unsigned n, const float *a, int16_t *b) {
+    pa_assert(a);
+    pa_assert(b);
 
 #if SWAP_WORDS == 1
 
@@ -86,20 +82,43 @@ void pa_sconv_s16le_from_float32ne(unsigned n, const float *a, void *b) {
         int16_t s;
         float v = *(a++);
 
-        if (v > 1)
-            v = 1;
-
-        if (v < -1)
-            v = -1;
-
+        v = CLAMP(v, -1, 1);
         s = (int16_t) (v * 0x7FFF);
-        *(cb++) = INT16_TO(s);
+        *(b++) = INT16_TO(s);
     }
 
 #else
 {
     static const double add = 0, factor = 0x7FFF;
-    oil_scaleconv_s16_f32(cb, a, n, &add, &factor);
+    oil_scaleconv_s16_f32(b, a, n, &add, &factor);
 }
 #endif
 }
+
+void pa_sconv_s16le_to_float32re(unsigned n, const int16_t *a, float *b) {
+    pa_assert(a);
+    pa_assert(b);
+
+    for (; n > 0; n--) {
+        int16_t s = *(a++);
+        float k = ((float) INT16_FROM(s))/0x7FFF;
+        uint32_t *j = (uint32_t*) &k;
+        *j = PA_UINT32_SWAP(*j);
+        *(b++) = k;
+    }
+}
+
+void pa_sconv_s16le_from_float32re(unsigned n, const float *a, int16_t *b) {
+    pa_assert(a);
+    pa_assert(b);
+
+    for (; n > 0; n--) {
+        int16_t s;
+        float v = *(a++);
+        uint32_t *j = (uint32_t*) &v;
+        *j = PA_UINT32_SWAP(*j);
+        v = CLAMP(v, -1, 1);
+        s = (int16_t) (v * 0x7FFF);
+        *(b++) = INT16_TO(s);
+    }
+}
-- 
cgit