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Fix hardware cursors on systems with >150% DPI scaling.

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This commit is contained in:
Paul Chote
2019-12-07 18:27:43 +00:00
committed by teinarss
parent 79aac08a48
commit 010fafc6d3
1 changed files with 20 additions and 16 deletions
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36
OpenRA.Platforms.Default/Sdl2PlatformWindow.cs
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@@ -245,6 +245,24 @@ namespace OpenRA.Platforms.Default
input = new Sdl2Input();
}
byte[] DoublePixelData(byte[] data, Size size)
{
var scaledData = new byte[4 * data.Length];
for (var y = 0; y < size.Height; y++)
{
for (var x = 0; x < size.Width; x++)
{
var a = 4 * (y * size.Width + x);
var b = 8 * (2 * y * size.Width + x);
var c = b + 8 * size.Width;
for (var i = 0; i < 4; i++)
scaledData[b + i] = scaledData[b + 4 + i] = scaledData[c + i] = scaledData[c + 4 + i] = data[a + i];
}
}
return scaledData;
}
public IHardwareCursor CreateHardwareCursor(string name, Size size, byte[] data, int2 hotspot)
{
VerifyThreadAffinity();
@@ -254,23 +272,9 @@ namespace OpenRA.Platforms.Default
// OSX does this for us automatically
if (Platform.CurrentPlatform != PlatformType.OSX && WindowScale > 1.5)
{
var scaledData = new byte[4 * data.Length];
for (var y = 0; y < size.Height * 4; y += 4)
{
for (var x = 0; x < size.Width * 4; x += 4)
{
var a = 4 * (y * size.Width + x);
var b = 4 * ((y + 1) * size.Width + x);
for (var i = 0; i < 4; i++)
{
scaledData[2 * a + i] = scaledData[2 * a + 4 + i] = data[a + i];
scaledData[2 * b + i] = scaledData[2 * b + 4 + i] = data[b + i];
}
}
}
data = DoublePixelData(data, size);
size = new Size(2 * size.Width, 2 * size.Height);
data = scaledData;
hotspot *= 2;
}
return new Sdl2HardwareCursor(size, data, hotspot);