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 GifFrame CreateFrameFromNode(Wz_Node frameNode, GlobalFindNodeFunction findNode)
{
if (frameNode == null || frameNode.Value == null)
{
return(null);
}
while (frameNode.Value is Wz_Uol)
{
Wz_Uol uol = frameNode.Value as Wz_Uol;
Wz_Node uolNode = uol.HandleUol(frameNode);
if (uolNode != null)
{
frameNode = uolNode;
}
}
if (frameNode.Value is Wz_Png)
{
var linkNode = frameNode.GetLinkedSourceNode(findNode);
Wz_Png png = linkNode?.GetValue <Wz_Png>() ?? (Wz_Png)frameNode.Value;
var gifFrame = new GifFrame(png.ExtractPng());
foreach (Wz_Node propNode in frameNode.Nodes)
{
switch (propNode.Text)
{
case "origin":
gifFrame.Origin = (propNode.Value as Wz_Vector);
break;
case "delay":
gifFrame.Delay = propNode.GetValue <int>();
break;
case "a0":
gifFrame.A0 = propNode.GetValue <int>();
break;
case "a1":
gifFrame.A1 = propNode.GetValue <int>();
break;
}
}
if (gifFrame.Delay == 0)
{
gifFrame.Delay = 100;//给予默认delay
}
return(gifFrame);
}
return(null);
}
public static BitmapOrigin CreateFromNode(Wz_Node node, GlobalFindNodeFunction findNode)
{
BitmapOrigin bp = new BitmapOrigin();
Wz_Uol uol;
while ((uol = node.GetValue <Wz_Uol>(null)) != null)
{
node = uol.HandleUol(node);
}
//获取linkNode
var linkNode = node.GetLinkedSourceNode(findNode);
Wz_Png png = linkNode?.GetValue <Wz_Png>() ?? (Wz_Png)node.Value;
bp.Bitmap = png?.ExtractPng();
Wz_Node originNode = node.FindNodeByPath("origin");
Wz_Vector vec = (originNode == null) ? null : originNode.GetValue <Wz_Vector>();
bp.Origin = (vec == null) ? new Point() : new Point(vec.X, vec.Y);
return(bp);
}
public static PngInfo ToPngInfo(this Wz_Png wz_Png)
{
string base64;
using (var bmp = wz_Png.ExtractPng())
{
using (var ms = new MemoryStream())
{
bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
byte[] data = ms.ToArray();
base64 = Convert.ToBase64String(data);
}
}
return(new PngInfo
{
Width = wz_Png.Width,
Height = wz_Png.Height,
Base64Data = base64,
DataLength = wz_Png.DataLength,
Form = wz_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);
}
