private void TransferChannel(Bitmap srcBitmap, ChannelARGB srcChannel, Bitmap dstBitmap, ChannelARGB dstChannel)
{
var srcData = srcBitmap.LockBits(new Rectangle(0, 0, srcBitmap.Width, srcBitmap.Height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
try
{
var dstData = dstBitmap.LockBits(new Rectangle(0, 0, dstBitmap.Width, dstBitmap.Height), ImageLockMode.ReadWrite, PixelFormat.Format32bppArgb);
try
{
var ret = WallSwitchImgProc.TransferChannel32(srcData.Scan0, (int)srcChannel, srcData.Stride,
dstData.Scan0, (int)dstChannel, dstData.Stride,
srcBitmap.Width, srcBitmap.Height);
if (ret != 0)
{
Log.Write(LogLevel.Error, "Error when transferring bitmap channel: {0}", ret);
}
}
finally
{
dstBitmap.UnlockBits(dstData);
}
}
finally
{
srcBitmap.UnlockBits(srcData);
}
}
private static Image LoadWebpFile(string pathName)
{
var fileBytes = File.ReadAllBytes(pathName);
var fileLen = fileBytes.Length;
var filePtr = Marshal.AllocHGlobal(fileLen);
try
{
Marshal.Copy(fileBytes, 0, filePtr, fileBytes.Length);
var packedSize = WallSwitchImgProc.webpGetSize(filePtr, (uint)fileLen);
if (packedSize == 0)
{
// This might not be a webp file, but just has the wrong extension. Try loading conventionally.
try
{
using (var stream = new MemoryStream(fileBytes))
{
return(Image.FromStream(stream));
}
}
catch (Exception ex)
{
Log.Error(ex, "Webp file could not be loaded as a webp or conventional image: {0}", pathName);
throw new WebpLoadException($"Invalid webp image: {pathName}");
}
}
var width = (int)(packedSize >> 16);
var height = (int)(packedSize & 0xffff);
var bmp = new Bitmap(width, height);
var bmpData = bmp.LockBits(new Rectangle(0, 0, width, height),
System.Drawing.Imaging.ImageLockMode.ReadWrite,
System.Drawing.Imaging.PixelFormat.Format32bppArgb);
try
{
if (WallSwitchImgProc.webpLoadARGB(filePtr, (uint)fileLen, bmpData.Scan0,
(uint)(bmpData.Stride * bmpData.Height), (uint)bmpData.Stride) != 0)
{
throw new WebpLoadException($"Failed to decode webp image: {pathName}");
}
}
finally
{
bmp.UnlockBits(bmpData);
}
return(bmp);
}
finally
{
Marshal.FreeHGlobal(filePtr);
}
}
private void BlurImage(Bitmap img, int blurDist)
{
var imgData = img.LockBits(new Rectangle(0, 0, img.Width, img.Height), ImageLockMode.ReadWrite, PixelFormat.Format32bppArgb);
try
{
WallSwitchImgProc.BlurImage(imgData.Scan0, img.Width, img.Height, 0, imgData.Stride, blurDist);
}
finally
{
img.UnlockBits(imgData);
}
}
public static void ExploreFile(string fileName)
{
WallSwitchImgProc.ShowFileInExplorer(fileName);
}
