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Merge pull request #3026 from lioncash/constexpr

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MathUtil: Make Clamp and IsPow2 constexpr functions.
This commit is contained in:
Ryan Houdek
2015-09-12 02:28:38 -04:00
parent 4d5baa4772 3f4852a03d
commit f121d7a8cd
14 changed files with 46 additions and 70 deletions
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3
Source/Core/AudioCommon/DPL2Decoder.cpp
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@ -134,7 +134,8 @@ static float* DesignFIR(unsigned int *n, float* fc, float opt)
// Sanity check
if (*n == 0)
return nullptr;
MathUtil::Clamp(&fc[0], float(0.001), float(1));
fc[0] = MathUtil::Clamp(fc[0], 0.001f, 1.0f);
float *w = (float*)calloc(sizeof(float), *n);

15
Source/Core/AudioCommon/Mixer.cpp
View File

@ -65,16 +65,14 @@ unsigned int CMixer::MixerFifo::Mix(short* samples, unsigned int numSamples, boo
int sampleL = ((l1 << 16) + (l2 - l1) * (u16)m_frac) >> 16;
sampleL = (sampleL * lvolume) >> 8;
sampleL += samples[currentSample + 1];
MathUtil::Clamp(&sampleL, -32767, 32767);
samples[currentSample + 1] = sampleL;
samples[currentSample + 1] = MathUtil::Clamp(sampleL, -32767, 32767);
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)m_frac) >> 16;
sampleR = (sampleR * rvolume) >> 8;
sampleR += samples[currentSample];
MathUtil::Clamp(&sampleR, -32767, 32767);
samples[currentSample] = sampleR;
samples[currentSample] = MathUtil::Clamp(sampleR, -32767, 32767);
m_frac += ratio;
indexR += 2 * (u16)(m_frac >> 16);
@ -89,11 +87,10 @@ unsigned int CMixer::MixerFifo::Mix(short* samples, unsigned int numSamples, boo
s[1] = (s[1] * lvolume) >> 8;
for (; currentSample < numSamples * 2; currentSample += 2)
{
int sampleR = s[0] + samples[currentSample];
MathUtil::Clamp(&sampleR, -32767, 32767);
samples[currentSample] = sampleR;
int sampleL = s[1] + samples[currentSample + 1];
MathUtil::Clamp(&sampleL, -32767, 32767);
int sampleR = MathUtil::Clamp(s[0] + samples[currentSample + 0], -32767, 32767);
int sampleL = MathUtil::Clamp(s[1] + samples[currentSample + 1], -32767, 32767);
samples[currentSample + 0] = sampleR;
samples[currentSample + 1] = sampleL;
}