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Qt: Sharp Bilinear scaling for memcard icons (#3536)

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This commit is contained in:
Ariel Nogueira Kovaljski
2025-08-27 09:18:46 -03:00
committed by GitHub
parent f303d57447
commit b0a63f95c9
1 changed files with 13 additions and 2 deletions
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15
src/duckstation-qt/memorycardeditorwindow.cpp
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@@ -37,7 +37,7 @@ static constexpr std::array<std::pair<ConsoleRegion, const char*>, 3> MEMORY_CAR
{ConsoleRegion::NTSC_J, "BI"},
{ConsoleRegion::PAL, "BE"},
}};
static constexpr int MEMORY_CARD_ICON_SIZE = 32;
static constexpr int MEMORY_CARD_ICON_SIZE = MemoryCardImage::ICON_HEIGHT * 2;
static constexpr int MEMORY_CARD_ICON_FRAME_DURATION_MS = 200;
namespace {
@@ -97,7 +97,18 @@ public:
QImage src_image = QImage(reinterpret_cast<const uchar*>(frame.pixels), MemoryCardImage::ICON_WIDTH,
MemoryCardImage::ICON_HEIGHT, QImage::Format_RGBA8888);
if (src_image.width() != icon_size || src_image.height() != icon_size)
src_image = src_image.scaled(icon_size, icon_size, Qt::IgnoreAspectRatio, Qt::FastTransformation);
{
// Sharp Bilinear scaling
// First, scale the icon by the largest integer size using nearest-neighbor...
const float scaled_icon_size = MEMORY_CARD_ICON_SIZE * dpr;
const int integer_icon_size = static_cast<int>(scaled_icon_size / MemoryCardImage::ICON_HEIGHT) * MemoryCardImage::ICON_HEIGHT;
src_image = src_image.scaled(integer_icon_size, integer_icon_size, Qt::IgnoreAspectRatio, Qt::FastTransformation);
// ...then scale any remainder using bilinear interpolation.
if (scaled_icon_size - integer_icon_size > 0)
src_image = src_image.scaled(icon_size, icon_size, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
}
src_image.setDevicePixelRatio(dpr);
pixmap = QPixmap(pixmap_width, pixmap_height);