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Merge pull request #639 from phire/fix-audio-issues 

Fix audio issues since DTK merge.
This commit is contained in:
Dolphin Bot 2014-07-17 10:13:06 +02:00
parent 11a0f5ddc5 48afab2685
commit ae65b3ba2c
2 changed files with 9 additions and 8 deletions
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15
Source/Core/AudioCommon/Mixer.cpp
View File

@ -51,7 +51,6 @@ unsigned int CMixer::MixerFifo::Mix(short* samples, unsigned int numSamples, boo
aid_sample_rate = aid_sample_rate * (framelimit - 1) * 5 / VideoInterface::TargetRefreshRate;
}
static u32 frac = 0;
const u32 ratio = (u32)( 65536.0f * aid_sample_rate / (float)m_mixer->m_sampleRate );
s32 lvolume = m_LVolume;
@ -63,7 +62,7 @@ unsigned int CMixer::MixerFifo::Mix(short* samples, unsigned int numSamples, boo
s16 l1 = Common::swap16(m_buffer[indexR & INDEX_MASK]); //current
s16 l2 = Common::swap16(m_buffer[indexR2 & INDEX_MASK]); //next
int sampleL = ((l1 << 16) + (l2 - l1) * (u16)frac) >> 16;
int sampleL = ((l1 << 16) + (l2 - l1) * (u16)m_frac) >> 16;
sampleL = (sampleL * lvolume) >> 8;
sampleL += samples[currentSample + 1];
MathUtil::Clamp(&sampleL, -32767, 32767);
@ -71,23 +70,23 @@ unsigned int CMixer::MixerFifo::Mix(short* samples, unsigned int numSamples, boo
s16 r1 = Common::swap16(m_buffer[(indexR + 1) & INDEX_MASK]); //current
s16 r2 = Common::swap16(m_buffer[(indexR2 + 1) & INDEX_MASK]); //next
int sampleR = ((r1 << 16) + (r2 - r1) * (u16)frac) >> 16;
int sampleR = ((r1 << 16) + (r2 - r1) * (u16)m_frac) >> 16;
sampleR = (sampleR * rvolume) >> 8;
sampleR += samples[currentSample];
MathUtil::Clamp(&sampleR, -32767, 32767);
samples[currentSample] = sampleR;
frac += ratio;
indexR += 2 * (u16)(frac >> 16);
frac &= 0xffff;
m_frac += ratio;
indexR += 2 * (u16)(m_frac >> 16);
m_frac &= 0xffff;
}
// Padding
short s[2];
s[0] = Common::swap16(m_buffer[(indexR - 1) & INDEX_MASK]);
s[1] = Common::swap16(m_buffer[(indexR - 2) & INDEX_MASK]);
s[0] = (s[0] * lvolume) >> 8;
s[1] = (s[1] * rvolume) >> 8;
s[0] = (s[0] * rvolume) >> 8;
s[1] = (s[1] * lvolume) >> 8;
for (; currentSample < numSamples * 2; currentSample += 2)
{
int sampleR = s[0] + samples[currentSample];

2
Source/Core/AudioCommon/Mixer.h
View File

@ -91,6 +91,7 @@ protected:
, m_LVolume(256)
, m_RVolume(256)
, m_numLeftI(0.0f)
, m_frac(0)
{
memset(m_buffer, 0, sizeof(m_buffer));
}
@ -107,6 +108,7 @@ protected:
volatile s32 m_LVolume;
volatile s32 m_RVolume;
float m_numLeftI;
u32 m_frac;
};
MixerFifo m_dma_mixer;
MixerFifo m_streaming_mixer;