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Sharper icon scaling (#3553)

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* take ceiling instead of truncation for icon scaling

* #include <cmath> and change std::ceilf to std::ceil
This commit is contained in:
Ariel Nogueira Kovaljski
2025-09-05 23:34:28 -03:00
committed by GitHub
parent 3ff6287a82
commit 587e73d71d
1 changed files with 5 additions and 4 deletions
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9
src/duckstation-qt/qtutils.cpp
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@@ -35,6 +35,7 @@
#include <cstdlib>
#include <cstring>
#include <map>
#include <cmath>
#if defined(_WIN32)
#include "common/windows_headers.h"
@@ -330,12 +331,12 @@ template<typename T>
static void ResizeSharpBilinearT(T& pm, int size, int base_size)
{
// Sharp Bilinear scaling
// First, scale the icon by the largest integer size using nearest-neighbor...
const int integer_icon_size = static_cast<int>(size / base_size) * base_size;
// First, scale the icon by the next largest integer size using nearest-neighbor...
const int integer_icon_size = std::ceil(static_cast<float>(size) / base_size) * base_size;
pm = pm.scaled(integer_icon_size, integer_icon_size, Qt::IgnoreAspectRatio, Qt::FastTransformation);
// ...then scale any remainder using bilinear interpolation.
if (size - integer_icon_size > 0)
// ...then scale down any remainder using bilinear interpolation.
if (integer_icon_size - size > 0)
pm = pm.scaled(size, size, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
}