From 04ba40981f559a1847403f4ef2975cd7c50761ff Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Sun, 1 Dec 2013 20:37:30 +0100
Subject: pcm/PcmMix: use the SampleTraits library
---
src/pcm/PcmMix.cxx | 50 +++++++++++++++++++++++++++++---------------------
1 file changed, 29 insertions(+), 21 deletions(-)
diff --git a/src/pcm/PcmMix.cxx b/src/pcm/PcmMix.cxx
index 21080bc5f..d7183f01d 100644
--- a/src/pcm/PcmMix.cxx
+++ b/src/pcm/PcmMix.cxx
@@ -22,40 +22,48 @@
#include "PcmVolume.hxx"
#include "PcmUtils.hxx"
#include "AudioFormat.hxx"
+#include "Traits.hxx"
#include <assert.h>
#include <math.h>
-template<typename T, typename U, unsigned bits>
-static T
-PcmAddVolume(T _a, T _b, int volume1, int volume2)
+template<SampleFormat F, class Traits=SampleTraits<F>>
+static typename Traits::value_type
+PcmAddVolume(typename Traits::value_type _a, typename Traits::value_type _b,
+ int volume1, int volume2)
{
- U a(_a), b(_b);
+ typename Traits::long_type a(_a), b(_b);
- U c = ((a * volume1 + b * volume2) +
+ typename Traits::value_type c = ((a * volume1 + b * volume2) +
pcm_volume_dither() + PCM_VOLUME_1 / 2)
/ PCM_VOLUME_1;
- return PcmClamp<T, U, bits>(c);
+ return PcmClamp<typename Traits::value_type,
+ typename Traits::long_type,
+ Traits::BITS>(c);
}
-template<typename T, typename U, unsigned bits>
+template<SampleFormat F, class Traits=SampleTraits<F>>
static void
-PcmAddVolume(T *a, const T *b, unsigned n, int volume1, int volume2)
+PcmAddVolume(typename Traits::pointer_type a,
+ typename Traits::const_pointer_type b,
+ size_t n, int volume1, int volume2)
{
for (size_t i = 0; i != n; ++i)
- a[i] = PcmAddVolume<T, U, bits>(a[i], b[i], volume1, volume2);
+ a[i] = PcmAddVolume<F, Traits>(a[i], b[i], volume1, volume2);
}
-template<typename T, typename U, unsigned bits>
+template<SampleFormat F, class Traits=SampleTraits<F>>
static void
PcmAddVolumeVoid(void *a, const void *b, size_t size, int volume1, int volume2)
{
- constexpr size_t sample_size = sizeof(T);
+ constexpr size_t sample_size = Traits::SAMPLE_SIZE;
assert(size % sample_size == 0);
- PcmAddVolume<T, U, bits>((T *)a, (const T *)b, size / sample_size,
- volume1, volume2);
+ PcmAddVolume<F, Traits>(typename Traits::pointer_type(a),
+ typename Traits::const_pointer_type(b),
+ size / sample_size,
+ volume1, volume2);
}
static void
@@ -84,23 +92,23 @@ pcm_add_vol(void *buffer1, const void *buffer2, size_t size,
return false;
case SampleFormat::S8:
- PcmAddVolumeVoid<int8_t, int32_t, 8>(buffer1, buffer2, size,
- vol1, vol2);
+ PcmAddVolumeVoid<SampleFormat::S8>(buffer1, buffer2, size,
+ vol1, vol2);
return true;
case SampleFormat::S16:
- PcmAddVolumeVoid<int16_t, int32_t, 16>(buffer1, buffer2, size,
- vol1, vol2);
+ PcmAddVolumeVoid<SampleFormat::S16>(buffer1, buffer2, size,
+ vol1, vol2);
return true;
case SampleFormat::S24_P32:
- PcmAddVolumeVoid<int32_t, int64_t, 24>(buffer1, buffer2, size,
- vol1, vol2);
+ PcmAddVolumeVoid<SampleFormat::S24_P32>(buffer1, buffer2, size,
+ vol1, vol2);
return true;
case SampleFormat::S32:
- PcmAddVolumeVoid<int32_t, int64_t, 32>(buffer1, buffer2, size,
- vol1, vol2);
+ PcmAddVolumeVoid<SampleFormat::S32>(buffer1, buffer2, size,
+ vol1, vol2);
return true;
case SampleFormat::FLOAT:
--
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