internal GifskiError AddFrame(IntPtr handle, uint index, string path, int delay, double lastTimestamp = 0, bool isLast = false)
{
if (Version.Major == 0 && Version.Minor < 9)
{
return(_addPngFrame(handle, index, path, (ushort)(delay / 10)));
}
//var aa = new FormatConvertedBitmap(path.SourceFrom(), PixelFormats.Rgb24, null, 0);
var util = new PixelUtil(new FormatConvertedBitmap(path.SourceFrom(), PixelFormats.Rgb24, null, 0));
util.LockBitsAndUnpad();
var bytesPerRow = util.Width * 3; //Was ((util.Width * 24 + 31) / 32) * 3
//if (bytesPerRow % 4 != 0)
// bytesPerRow += (4 - (bytesPerRow % 4));
//Pin the buffer in order to pass the address as parameter later.
var pinnedBuffer = GCHandle.Alloc(util.Pixels, GCHandleType.Pinned);
var address = pinnedBuffer.AddrOfPinnedObject();
GifskiError result;
if (Version > new Version(0, 10, 4))
{
//First frame receives the delay set of the last frame.
result = AddFrame2Pixels(handle, index, (uint)util.Width, (uint)bytesPerRow, (uint)util.Height, address, index == 0 ? lastTimestamp : _timeStamp);
_timeStamp += (delay / 1000d);
}
else if (Version.Major == 0 && Version.Minor >= 10)
{
result = AddFrame2Pixels(handle, index, (uint)util.Width, (uint)bytesPerRow, (uint)util.Height, address, _timeStamp);
//As a dirty fix for Gifski 0.10.2, the last frame must be duplicated to preserve the timings.
if (isLast)
{
_timeStamp += ((delay / 1000d) / 2d);
result = AddFrame2Pixels(handle, index + 1, (uint)util.Width, (uint)bytesPerRow, (uint)util.Height, address, _timeStamp);
}
//Frames can't be more than 1 second apart. TODO: Add support for dealing with this issue.
_timeStamp += (delay / 1000d);
}
else
{
//Normal delay.
result = AddFramePixels(handle, index, (uint)util.Width, (uint)bytesPerRow, (uint)util.Height, address, (ushort)delay);
}
//The buffer must be unpinned, to free resources.
pinnedBuffer.Free();
util.UnlockBitsWithoutCommit();
return(result);
}
