public static void ToTexture(this Wz_Png png, Texture2D texture, Point origin)
{
Rectangle rect = new Rectangle(origin, new Point(png.Width, png.Height));
//检查大小
if (rect.X < 0 || rect.Y < 0 || rect.Right > texture.Width || rect.Bottom > texture.Height)
{
throw new ArgumentException("Png rectangle is out of bounds.");
}
//检查像素格式
var format = GetTextureFormatOfPng(png.Form);
if (texture.Format == SurfaceFormat.Bgra32)
{
using (var bmp = png.ExtractPng())
{
bmp.ToTexture(texture, origin);
}
}
else if (texture.Format != format)
{
throw new ArgumentException($"Texture format({texture.Format}) does not fit the png form({png.Form}).");
}
else
{
byte[] plainData = png.GetRawData();
if (plainData == null)
{
throw new Exception("png decoding failed.");
}
switch (png.Form)
{
case 1:
case 2:
case 257:
case 513:
case 1026:
case 2050:
texture.SetData(0, 0, rect, plainData, 0, plainData.Length);
break;
case 3:
var pixel = Wz_Png.GetPixelDataForm3(plainData, png.Width, png.Height);
texture.SetData(0, 0, rect, pixel, 0, pixel.Length);
break;
case 517:
pixel = Wz_Png.GetPixelDataForm517(plainData, png.Width, png.Height);
texture.SetData(0, 0, rect, pixel, 0, pixel.Length);
break;
default:
throw new Exception($"unknown png form ({png.Form}).");
}
}
}
public static Texture2D ToTexture(this Wz_Png png, GraphicsDevice graphicsDevice)
{
byte[] plainData = png.GetRawData();
if (plainData == null)
{
return(null);
}
Texture2D t2d;
switch (png.Form)
{
case 1:
t2d = null;
try
{
t2d = MonogameUtils.CreateTexture_BGRA4444(graphicsDevice, png.Width, png.Height);
t2d.SetData(plainData);
}
catch //monogame并不支持这个format 用gdi+转
{
if (t2d != null)
{
t2d.Dispose();
}
goto default;
}
break;
case 2:
t2d = new Texture2D(graphicsDevice, png.Width, png.Height, false, SurfaceFormat.Color);
MonogameUtils.BgraToColor(plainData);
t2d.SetData(plainData);
break;
case 513:
t2d = new Texture2D(graphicsDevice, png.Width, png.Height, false, SurfaceFormat.Bgr565);
t2d.SetData(plainData);
break;
case 517:
t2d = new Texture2D(graphicsDevice, png.Width, png.Height, false, SurfaceFormat.Bgr565);
byte[] texData = new byte[png.Width * png.Height * 2];
for (int j0 = 0, j1 = png.Height / 16; j0 < j1; j0++)
{
int idxTex = j0 * 16 * png.Width * 2;
for (int i0 = 0, i1 = png.Width / 16; i0 < i1; i0++)
{
int idx = (i0 + j0 * i1) * 2;
for (int k = 0; k < 16; k++)
{
texData[idxTex + i0 * 32 + k * 2] = plainData[idx];
texData[idxTex + i0 * 32 + k * 2 + 1] = plainData[idx + 1];
}
}
for (int k = 1; k < 16; k++)
{
System.Buffer.BlockCopy(texData, idxTex, texData, idxTex + k * png.Width * 2, png.Width * 2);
}
}
t2d.SetData(texData);
break;
case 1026:
t2d = new Texture2D(graphicsDevice, png.Width, png.Height, false, SurfaceFormat.Dxt3);
t2d.SetData(plainData);
break;
case 2050:
t2d = new Texture2D(graphicsDevice, png.Width, png.Height, false, SurfaceFormat.Dxt5);
t2d.SetData(plainData);
break;
default: //默认从bitmap复制 二次转换
var bitmap = png.ExtractPng();
t2d = bitmap.ToTexture(graphicsDevice);
bitmap.Dispose();
break;
}
return(t2d);
}
/// <summary>
/// 比较两个节点绑定的值是否相同。
/// </summary>
/// <param Name="dataNew">新的值。</param>
/// <param Name="dataOld">旧的值。</param>
/// <returns></returns>
public virtual bool CompareData(object dataNew, object dataOld)
{
// skip virtual dir
{
if (dataNew is Wz_File fileNew && fileNew.IsSubDir)
{
dataNew = null;
}
if (dataOld is Wz_File fileOld && fileOld.IsSubDir)
{
dataNew = null;
}
}
if (dataNew == null && dataOld == null)
{
return(true);
}
if (dataNew == null ^ dataOld == null)
{
return(false);
}
Type type = dataNew.GetType();
if (type != dataOld.GetType())
{
return(false);
}
if (type.IsClass)
{
switch (dataNew)
{
case string str:
return(str == (string)dataOld);
case Wz_Image img:
Wz_Image imgOld = (Wz_Image)dataOld;
return(img.Size == imgOld.Size && img.Checksum == imgOld.Checksum);
case Wz_File file:
Wz_File fileOld = (Wz_File)dataOld;
return(file.Type == fileOld.Type);
case Wz_Png png:
Wz_Png pngOld = (Wz_Png)dataOld;
switch (this.PngComparison)
{
case WzPngComparison.SizeOnly:
return(png.Width == pngOld.Width && png.Height == pngOld.Height);
case WzPngComparison.SizeAndDataLength:
return(png.Width == pngOld.Width &&
png.Height == pngOld.Height &&
png.DataLength == pngOld.DataLength);
case WzPngComparison.Pixel:
if (!(png.Width == pngOld.Width && png.Height == pngOld.Height && png.Form == pngOld.Form))
{
return(false);
}
byte[] pixelNew = png.GetRawData();
byte[] pixelOld = pngOld.GetRawData();
if (pixelNew == null || pixelOld == null || pixelNew.Length != pixelOld.Length)
{
return(false);
}
for (int i = 0, i1 = pixelNew.Length; i < i1; i++)
{
if (pixelNew[i] != pixelOld[i])
{
return(false);
}
}
return(true);
default:
goto case WzPngComparison.SizeAndDataLength;
}
break;
case Wz_Vector vector:
Wz_Vector vectorOld = (Wz_Vector)dataOld;
return(vector.X == vectorOld.X && vector.Y == vectorOld.Y);
case Wz_Uol uol:
return(uol.Uol == ((Wz_Uol)dataOld).Uol);
case Wz_Sound sound:
Wz_Sound soundOld = (Wz_Sound)dataOld;
return(sound.Ms == soundOld.Ms && sound.DataLength == soundOld.DataLength);
}
}
return(object.Equals(dataNew, dataOld));
}