private static byte[] PixelBytesFromImage(Bitmap bmp, PsbPixelFormat pixelFormat = PsbPixelFormat.None)
{
BitmapData bmpData = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height),
ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
int stride = bmpData.Stride; // 扫描线的宽度
int offset = stride - bmp.Width; // 显示宽度与扫描线宽度的间隙
IntPtr iptr = bmpData.Scan0; // 获取bmpData的内存起始位置
int scanBytes = stride * bmp.Height; // 用stride宽度，表示这是内存区域的大小
var result = new byte[scanBytes];
System.Runtime.InteropServices.Marshal.Copy(iptr, result, 0, scanBytes);
bmp.UnlockBits(bmpData); // 解锁内存区域
switch (pixelFormat)
{
case PsbPixelFormat.WinRGBA4444:
result = Rgba428(result, false);
break;
case PsbPixelFormat.CommonRGBA8:
Rgba2Argb(ref result);
break;
case PsbPixelFormat.DXT5:
//Rgba2Argb(ref result);
result = DxtUtil.Dxt5Encode(result, bmp.Width, bmp.Height);
break;
}
return(result);
}
private static byte[] PixelBytesFromImage(Bitmap bmp, PsbPixelFormat pixelFormat = PsbPixelFormat.None)
{
BitmapData bmpData = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height),
ImageLockMode.ReadOnly, bmp.PixelFormat);
int stride = bmpData.Stride; // 扫描线的宽度
int offset = stride - bmp.Width; // 显示宽度与扫描线宽度的间隙
IntPtr iPtr = bmpData.Scan0; // 获取bmpData的内存起始位置
int scanBytes = stride * bmp.Height; // 用stride宽度，表示这是内存区域的大小
var result = new byte[scanBytes];
Marshal.Copy(iPtr, result, 0, scanBytes);
bmp.UnlockBits(bmpData); // 解锁内存区域
switch (pixelFormat)
{
case PsbPixelFormat.LeRGBA4444:
result = Argb428(result, false);
break;
case PsbPixelFormat.BeRGBA4444:
Argb2Rgba(ref result, true);
result = Argb428(result, false);
break;
case PsbPixelFormat.BeRGBA8:
Switch_0_2(ref result);
break;
case PsbPixelFormat.A8L8:
result = Argb2A8L8(result);
break;
case PsbPixelFormat.A8L8_SW:
result = PostProcessing.SwizzleTexture(result, bmp.Width, bmp.Height, bmp.PixelFormat);
result = Argb2A8L8(result);
break;
case PsbPixelFormat.DXT5:
//Switch_0_2(ref result);
result = DxtUtil.Dxt5Encode(result, bmp.Width, bmp.Height);
break;
case PsbPixelFormat.RGBA8_SW:
result = PostProcessing.SwizzleTexture(result, bmp.Width, bmp.Height, bmp.PixelFormat);
Switch_0_2(ref result);
break;
case PsbPixelFormat.TileRGBA8_SW:
result = PostProcessing.TileTexture(result, bmp.Width, bmp.Height, bmp.PixelFormat);
break;
case PsbPixelFormat.L8:
result = Argb2L8(result);
break;
case PsbPixelFormat.A8_SW:
result = PostProcessing.SwizzleTexture(result, bmp.Width, bmp.Height, bmp.PixelFormat);
result = Argb2A8(result);
break;
case PsbPixelFormat.TileA8_SW:
result = PostProcessing.TileTexture(result, bmp.Width, bmp.Height, bmp.PixelFormat);
result = Argb2A8(result);
break;
case PsbPixelFormat.A8:
result = Argb2A8(result);
break;
case PsbPixelFormat.CI8_SW:
result = PostProcessing.SwizzleTexture(result, bmp.Width, bmp.Height, bmp.PixelFormat);
break;
case PsbPixelFormat.CI4_SW:
result = PostProcessing.SwizzleTexture(result, bmp.Width, bmp.Height, bmp.PixelFormat);
break;
case PsbPixelFormat.L8_SW:
result = PostProcessing.SwizzleTexture(result, bmp.Width, bmp.Height, bmp.PixelFormat);
result = Argb2L8(result);
break;
case PsbPixelFormat.LeRGBA4444_SW:
result = PostProcessing.SwizzleTexture(result, bmp.Width, bmp.Height, bmp.PixelFormat);
result = Argb428(result, false);
break;
case PsbPixelFormat.RGBA5650:
result = Argb2Rgba5650(result);
break;
case PsbPixelFormat.RGBA5650_SW:
result = PostProcessing.SwizzleTexture(result, bmp.Width, bmp.Height, bmp.PixelFormat);
result = Argb2Rgba5650(result);
break;
}
return(result);
}