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The last of the changes, I hope.

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This commit is contained in:
Steve Checkoway
2006-05-14 07:04:28 +00:00
parent ea19495a50
commit f39e79efed
5 changed files with 292 additions and 3 deletions
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stepmania/src/RageSoundMixBuffer.cpp
+32
View File
@@ -2,12 +2,21 @@
#include "RageSoundMixBuffer.h"
#include "RageUtil.h"
#if defined(MACOSX)
#include "archutils/Darwin/VectorHelper.h"
static bool g_bVector;
#endif
RageSoundMixBuffer::RageSoundMixBuffer()
{
m_iBufSize = m_iBufUsed = 0;
m_pMixbuf = NULL;
m_iOffset = 0;
SetVolume( 1.0f );
#ifdef USE_VEC
g_bVector = Vector::CheckForVector();
#endif
}
RageSoundMixBuffer::~RageSoundMixBuffer()
@@ -49,6 +58,13 @@ void RageSoundMixBuffer::write( const int16_t *buf, unsigned size )
/* Scale volume and add. */
int32_t *pBuf = m_pMixbuf+m_iOffset;
#ifdef USE_VEC
if( g_bVector )
{
Vector::FastSoundWrite( pBuf, buf, size, m_iVolumeFactor );
return;
}
#endif
for( unsigned pos = 0; pos < size; ++pos )
{
*pBuf += buf[pos] * m_iVolumeFactor; ++pBuf;
@@ -57,6 +73,14 @@ void RageSoundMixBuffer::write( const int16_t *buf, unsigned size )
void RageSoundMixBuffer::read( int16_t *buf )
{
#ifdef USE_VEC
if( g_bVector )
{
Vector::FastSoundRead( buf, m_pMixbuf, m_iBufUsed );
m_iBufUsed = 0;
return;
}
#endif
for( unsigned pos = 0; pos < m_iBufUsed; ++pos )
{
int32_t out = (m_pMixbuf[pos]) / 256;
@@ -67,6 +91,14 @@ void RageSoundMixBuffer::read( int16_t *buf )
void RageSoundMixBuffer::read( float *buf )
{
#ifdef USE_VEC
if( g_bVector )
{
Vector::FastSoundRead( buf, m_pMixbuf, m_iBufUsed );
m_iBufUsed = 0;
return;
}
#endif
const int Minimum = -32768 * 256;
const int Maximum = 32767 * 256;