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Convert audio samples to doubles rather than floats when using FFTW

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Originally committed to SVN as r5975.
This commit is contained in:
Thomas Goyne 2011-12-06 19:58:54 +00:00
parent 5d8a802e8a
commit 6ff233b5ac
2 changed files with 4 additions and 4 deletions
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6
aegisub/src/audio_renderer_spectrum.cpp
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@ -185,10 +185,10 @@ void AudioSpectrumRenderer::SetResolution(size_t _derivation_size, size_t _deriv
} }
template<class T> template<class T>
void AudioSpectrumRenderer::ConvertToFloat(size_t count, T &dest) { void AudioSpectrumRenderer::ConvertToFloat(size_t count, T *dest) {
for (size_t si = 0; si < count; ++si) for (size_t si = 0; si < count; ++si)
{ {
dest[si] = (float)(audio_scratch[si]) / 32768.f; dest[si] = (T)(audio_scratch[si]) / 32768.0;
} }
} }
@ -214,7 +214,7 @@ void AudioSpectrumRenderer::FillBlock(size_t block_index, float *block)
o++; o++;
} }
#else #else
ConvertToFloat(2 << derivation_size, fft_scratch); ConvertToFloat(2 << derivation_size, &fft_scratch[0]);
float *fft_input = &fft_scratch[0]; float *fft_input = &fft_scratch[0];
float *fft_real = &fft_scratch[0] + (2 << derivation_size); float *fft_real = &fft_scratch[0] + (2 << derivation_size);

2
aegisub/src/audio_renderer_spectrum.h
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@ -99,7 +99,7 @@ class AudioSpectrumRenderer : public AudioRendererBitmapProvider {
/// @param count Samples to convert /// @param count Samples to convert
/// @param dest Buffer to fill /// @param dest Buffer to fill
template<class T> template<class T>
void ConvertToFloat(size_t count, T &dest); void ConvertToFloat(size_t count, T *dest);
#ifdef WITH_FFTW #ifdef WITH_FFTW
/// FFTW plan data /// FFTW plan data