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fix: wrong pfim image format
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Signed-off-by: leo <longshuang@msn.cn>
This commit is contained in:
leo 2025-06-06 20:50:37 +08:00
parent 47012e29dc
commit 203c50350e
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1 changed files with 8 additions and 36 deletions
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44
src/ViewModels/ImageSource.cs
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@ -100,59 +100,31 @@ namespace SourceGit.ViewModels
var data = pfiImage.Data;
var stride = pfiImage.Stride;
var pixelFormat = PixelFormats.Rgba8888;
var pixelFormat = PixelFormats.Bgra8888;
var alphaFormat = AlphaFormat.Opaque;
switch (pfiImage.Format)
{
case ImageFormat.Rgb8:
pixelFormat = PixelFormats.Gray8;
break;
case ImageFormat.R5g6b5:
pixelFormat = PixelFormats.Rgb565;
break;
case ImageFormat.Rgba16:
var pixels = pfiImage.DataLen / 2;
var newSize = pfiImage.DataLen * 2;
data = new byte[newSize];
stride = 4 * pfiImage.Width;
for (int i = 0; i < pixels; i++)
{
var rg = pfiImage.Data[i * 2];
var ba = pfiImage.Data[i * 2 + 1];
data[i * 4 + 0] = (byte)Math.Round((rg >> 4) / 15.0 * 255);
data[i * 4 + 1] = (byte)Math.Round((rg & 0xF) / 15.0 * 255);
data[i * 4 + 2] = (byte)Math.Round((ba >> 4) / 15.0 * 255);
data[i * 4 + 3] = (byte)Math.Round((ba & 0xF) / 15.0 * 255);
}
alphaFormat = AlphaFormat.Premul;
break;
case ImageFormat.R5g5b5:
case ImageFormat.R5g5b5a1:
var pixels2 = pfiImage.DataLen / 2;
var newSize2 = pfiImage.DataLen * 2;
data = new byte[newSize2];
stride = 4 * pfiImage.Width;
for (int i = 0; i < pixels2; i++)
{
var v = (int)pfiImage.Data[i * 2] << 8 + pfiImage.Data[i * 2 + 1];
data[i * 4 + 0] = (byte)Math.Round(((v & 0b1111100000000000) >> 11) / 31.0 * 255);
data[i * 4 + 1] = (byte)Math.Round(((v & 0b11111000000) >> 6) / 31.0 * 255);
data[i * 4 + 2] = (byte)Math.Round(((v & 0b111110) >> 1) / 31.0 * 255);
data[i * 4 + 3] = (byte)((v & 1) == 1 ? 255 : 0);
}
alphaFormat = AlphaFormat.Premul;
pixelFormat = PixelFormats.Bgr555;
break;
case ImageFormat.R5g6b5:
pixelFormat = PixelFormats.Bgr565;
break;
case ImageFormat.Rgb24:
pixelFormat = PixelFormats.Rgb24;
pixelFormat = PixelFormats.Bgr24;
break;
case ImageFormat.Rgba32:
pixelFormat = PixelFormat.Rgba8888;
alphaFormat = AlphaFormat.Premul;
break;
default:
return new ImageSource(null, 0);
}
var ptr = Marshal.UnsafeAddrOfPinnedArrayElement(pfiImage.Data, 0);
var ptr = Marshal.UnsafeAddrOfPinnedArrayElement(data, 0);
var pixelSize = new PixelSize(pfiImage.Width, pfiImage.Height);
var dpi = new Vector(96, 96);
var bitmap = new Bitmap(pixelFormat, alphaFormat, ptr, pixelSize, dpi, stride);