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cellPhotoDecode: optimize get_scaled_image

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This commit is contained in:
Megamouse 2022-07-28 20:57:13 +02:00
parent e6885e25b5
commit 87e628a9e9
4 changed files with 43 additions and 15 deletions
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52
rpcs3/main_application.cpp
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@ -189,11 +189,15 @@ EmuCallbacks main_application::CreateCallbacks()
success = true;
sys_log.notice("get_image_info found image: filename='%s', sub_type='%s', width=%d, height=%d, orientation=%d", filename, sub_type, width, height, orientation);
}
else
{
sys_log.warning("get_image_info failed to read '%s'. Error='%s'", filename, reader.errorString().toStdString());
}
});
return success;
};
callbacks.get_scaled_image = [](const std::string& path, s32 target_width, s32 target_height, s32& width, s32& height, u8* dst) -> bool
callbacks.get_scaled_image = [](const std::string& path, s32 target_width, s32 target_height, s32& width, s32& height, u8* dst, bool force_fit) -> bool
{
width = 0;
height = 0;
@ -206,34 +210,58 @@ EmuCallbacks main_application::CreateCallbacks()
bool success = false;
Emu.BlockingCallFromMainThread([&]()
{
QImage image{};
success = image.load(QString::fromStdString(path)) && !image.isNull();
// We use QImageReader instead of QImage. This way we can load and scale image in one step.
QImageReader reader(QString::fromStdString(path));
if (success)
if (reader.canRead())
{
width = image.width();
height = image.height();
QSize size = reader.size();
width = size.width();
height = size.height();
if (width <= 0 || height <= 0)
{
success = false;
return;
}
if (width > target_width || height > target_height)
if (force_fit || width > target_width || height > target_height)
{
const QSize size(target_width, target_height);
image = image.scaled(QSize(target_width, target_height), Qt::AspectRatioMode::KeepAspectRatio, Qt::TransformationMode::SmoothTransformation);
width = image.width();
height = image.height();
const f32 target_ratio = target_width / static_cast<f32>(target_height);
const f32 image_ratio = width / static_cast<f32>(height);
const f32 convert_ratio = image_ratio / target_ratio;
if (convert_ratio > 1.0f)
{
size = QSize(target_width, target_height / convert_ratio);
}
else if (convert_ratio < 1.0f)
{
size = QSize(target_width * convert_ratio, target_height);
}
else
{
size = QSize(target_width, target_height);
}
reader.setScaledSize(size);
width = size.width();
height = size.height();
}
QImage image = reader.read();
if (image.format() != QImage::Format::Format_RGBA8888)
{
image = image.convertToFormat(QImage::Format::Format_RGBA8888);
}
std::memcpy(dst, image.constBits(), std::min(4 * target_width * target_height, image.height() * image.bytesPerLine()));
success = true;
sys_log.notice("get_scaled_image scaled image: path='%s', width=%d, height=%d", path, width, height);
}
else
{
sys_log.error("get_scaled_image failed to read '%s'. Error='%s'", path, reader.errorString().toStdString());
}
});
return success;