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audiovis: proper bars thickness and gap for a sleeker look

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This commit is contained in:
Lemmy
2026-05-06 13:58:32 -04:00
parent e7668fc7cd
commit 8cb73cb09f
1 changed files with 10 additions and 8 deletions
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src/render/programs/audio_spectrum_program.cpp
+10 -8
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@@ -134,11 +134,15 @@ void AudioSpectrumProgram::draw(float surfaceWidth, float surfaceHeight, float p
const float crossAxisLen = horizontal ? height : width;
const int gapCount = std::max(0, barCount - 1);
const float weightedSlots = static_cast<float>(barCount) + static_cast<float>(gapCount) * kGapToBarRatio;
const float barThickness = mainAxisLen / std::max(1.0f, weightedSlots);
const float gapThickness = gapCount > 0 ? barThickness * kGapToBarRatio : 0.0f;
const float used = barThickness * static_cast<float>(barCount) + gapThickness * static_cast<float>(gapCount);
const float startOffset = std::floor(std::max(0.0f, (mainAxisLen - used) * 0.5f));
const float devicePixel = 1.0f / mainPixelScale;
const float barThickness =
std::max(devicePixel, std::floor(mainAxisLen / std::max(1.0f, weightedSlots) * mainPixelScale) / mainPixelScale);
const float gapThickness =
gapCount > 0 ? std::max(devicePixel, std::floor(barThickness * kGapToBarRatio * mainPixelScale) / mainPixelScale)
: 0.0f;
const float stride = barThickness + gapThickness;
const float used = barThickness * static_cast<float>(barCount) + gapThickness * static_cast<float>(gapCount);
const float startOffset = std::floor(std::max(0.0f, (mainAxisLen - used) * 0.5f) * mainPixelScale) / mainPixelScale;
m_vertices.clear();
m_vertices.reserve(static_cast<std::size_t>(barCount) * 6U * 6U);
@@ -154,10 +158,8 @@ void AudioSpectrumProgram::draw(float surfaceWidth, float surfaceHeight, float p
}
const float crossSize = crossPixels / crossPixelScale;
const float mainPos = startOffset + static_cast<float>(i) * stride;
const float mainStart = std::max(0.0f, snapToPixel(mainPos, mainPixelScale));
const float mainEnd = std::min(mainAxisLen, std::max(mainStart + (1.0f / mainPixelScale),
snapToPixel(mainPos + barThickness, mainPixelScale)));
const float mainStart = snapToPixel(startOffset + static_cast<float>(i) * stride, mainPixelScale);
const float mainEnd = mainStart + barThickness;
float crossStart =
snapToPixel(style.centered ? (crossAxisLen - crossSize) * 0.5f : crossAxisLen - crossSize, crossPixelScale);
float crossEnd = crossStart + crossSize;