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Use max_element rather than a loop

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Thomas Goyne 2012-12-22 20:26:43 -08:00
parent 6e3cc883b3
commit 44323cef6d
1 changed files with 1 additions and 3 deletions
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aegisub/src/audio_renderer_spectrum.cpp
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@ -294,9 +294,7 @@ void AudioSpectrumRenderer::Render(wxBitmap &bmp, int start, AudioRenderingStyle
assert(px < imgdata + imgheight*stride); assert(px < imgdata + imgheight*stride);
int sample1 = std::max(0, maxband * y/imgheight + minband); int sample1 = std::max(0, maxband * y/imgheight + minband);
int sample2 = std::min((1<<derivation_size)-1, maxband * (y+1)/imgheight + minband); int sample2 = std::min((1<<derivation_size)-1, maxband * (y+1)/imgheight + minband);
float maxval = 0; float maxval = *std::max_element(&power[sample1], &power[sample2 + 1]);
for (int samp = sample1; samp <= sample2; samp++)
if (power[samp] > maxval) maxval = power[samp];
pal->map(maxval*amplitude_scale, px); pal->map(maxval*amplitude_scale, px);
px -= stride; px -= stride;
} }