public static ConvertBitmapToBitmapImage ( |
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bitmap | ||
리턴 |
public static ImageSource CreateImage(string filename, int depthSlice, int width, int height, bool ignoreAlpha = false, IPixelEffect effect = null) { var extension = Path.GetExtension(filename).ToLower(); if (extension == ".png") { // TODO: rescale the bitmap to specified width/height. try { return(ImageHelper.ConvertBitmapToBitmapImage((Bitmap)Image.FromFile(filename, true))); } catch { return(null); } } else if (extension == ".dds") { uint fourCC; var pixelChannel = ReadTextureFile(filename, depthSlice, ref width, ref height, out fourCC); if (pixelChannel == null) { return(null); } try { if (fourCC == (uint)DDS_FOURCC.DXT3 || fourCC == (uint)DDS_FOURCC.DXT5) { return(DxtUtil.DecompressDxt5TextureToImageSource(pixelChannel, width, height, ignoreAlpha, effect)); } } catch { return(null); } } return(null); }
internal static ImageSource DecompressTextureToImageSource(byte[] imageData, int width, int height, bool ignoreAlpha, IPixelEffect effect, uint fourCC, ImageTextureUtil.DXGI_FORMAT dxgiFormat) { using (var imageStream = new MemoryStream(imageData)) { byte[] pixelColors; if (fourCC == (uint)ImageTextureUtil.DDS_FOURCC.DXT1) { pixelColors = DxtUtil.DecompressDxt1(imageStream, width, height); } else if (fourCC == (uint)ImageTextureUtil.DDS_FOURCC.DXT3) { pixelColors = DxtUtil.DecompressDxt3(imageStream, width, height); } else { pixelColors = DxtUtil.DecompressDxt5(imageStream, width, height, dxgiFormat); } // Copy the pixel colors into a byte array const int bytesPerPixel = 4; var stride = width * bytesPerPixel; var pixelRgba = new byte[pixelColors.Length]; for (var i = 0; i < pixelColors.Length; i += bytesPerPixel) { pixelRgba[i + 0] = pixelColors[i + 2]; pixelRgba[i + 1] = pixelColors[i + 1]; pixelRgba[i + 2] = pixelColors[i + 0]; pixelRgba[i + 3] = ignoreAlpha ? (byte)0xff : pixelColors[i + 3]; } if (effect == null) { return(System.Windows.Media.Imaging.BitmapSource.Create(width, height, 96, 96, PixelFormats.Bgra32, null, pixelRgba, stride)); } var bmp = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format32bppArgb); var bmpData = bmp.LockBits(new Rectangle(0, 0, width, height), ImageLockMode.ReadWrite, bmp.PixelFormat); //Copy the data from the byte array into BitmapData.Scan0 Marshal.Copy(pixelRgba, 0, bmpData.Scan0, pixelRgba.Length); // Unlock the pixels bmp.UnlockBits(bmpData); bmp = effect.Quantize(bmp); return(ImageHelper.ConvertBitmapToBitmapImage(bmp)); } }
public static ImageSource CreateImage(string filename, int depthSlice, int width, int height, bool ignoreAlpha = false, IPixelEffect effect = null) { var extension = Path.GetExtension(filename).ToLower(); if (extension == ".png") { // TODO: rescale the bitmap to specified width/height. try { return(ImageHelper.ConvertBitmapToBitmapImage((Bitmap)Image.FromFile(filename, true))); } catch { return(null); } } else if (extension == ".dds") { using (var stream = File.OpenRead(filename)) { return(CreateImage(stream, depthSlice, width, height, ignoreAlpha, effect)); } } return(null); }