public void replaceImage(string strImgSize, string fileToReplace, string archiveDir) { ImageSize imgSize = ImageSize.stringToSize(strImgSize); if (!imgList.Exists(img => img.imgSize == imgSize)) { throw new FileNotFoundException("Image with resolution " + imgSize + " isn't found"); } int imageIdx = imgList.FindIndex(img => img.imgSize == imgSize); ImageInfo imgInfo = imgList[imageIdx]; if (!File.Exists(fileToReplace)) { throw new FileNotFoundException("invalid file to replace: " + fileToReplace); } // check if replacing image is supported ImageFile imgFile; string fileFormat = Path.GetExtension(fileToReplace); switch (fileFormat) { case ".dds": imgFile = new DDS(fileToReplace, null); break; case ".tga": imgFile = new TGA(fileToReplace, null); break; default: throw new FileFormatException(fileFormat + " image extension not supported"); } // check if images have same format type if (texFormat != imgFile.format) { DialogResult selection = MessageBox.Show("Warning, replacing image has format " + imgFile.subtype() + " while original has " + texFormat + ", would you like to replace it anyway?", "Warning, different image format found", MessageBoxButtons.YesNo, MessageBoxIcon.Warning); if (selection == DialogResult.Yes) { imgFile.format = texFormat; } else { return; } //throw new FormatException("Different image format, original is " + texFormat + ", new is " + imgFile.subtype()); } byte[] imgBuffer; // if the image is empty then recover the archive compression from the image list if (imgInfo.storageType == storage.empty) { imgInfo.storageType = imgList.Find(img => img.storageType != storage.empty && img.storageType != storage.pccSto).storageType; imgInfo.uncSize = imgFile.resize().Length; imgInfo.cprSize = imgFile.resize().Length; } switch (imgInfo.storageType) { case storage.arcCpr: case storage.arcUnc: string archivePath = archiveDir + "\\" + arcName + ".tfc"; if (!File.Exists(archivePath)) { throw new FileNotFoundException("Texture archive not found in " + archivePath); } if (getFileFormat() == ".tga") { imgBuffer = imgFile.resize(); // shrink image to essential data } else { imgBuffer = imgFile.imgData; } if (imgBuffer.Length != imgInfo.uncSize) { throw new FormatException("image sizes do not match, original is " + imgInfo.uncSize + ", new is " + imgBuffer.Length); } using (FileStream archiveStream = new FileStream(archivePath, FileMode.Append, FileAccess.Write)) { int newOffset = (int)archiveStream.Position; if (imgInfo.storageType == storage.arcCpr) { imgBuffer = ZBlock.Compress(imgBuffer); /*byte[] compressed = ZBlock.Compress(imgBuffer); * archiveStream.Write(compressed, 0, compressed.Length);*/ imgInfo.cprSize = imgBuffer.Length; } //else archiveStream.Write(imgBuffer, 0, imgBuffer.Length); imgInfo.offset = newOffset; } break; case storage.pccSto: imgBuffer = imgFile.imgData; // copy image data as-is if (imgBuffer.Length != imgInfo.uncSize) { throw new FormatException("image sizes do not match, original is " + imgInfo.uncSize + ", new is " + imgBuffer.Length); } using (MemoryStream dataStream = new MemoryStream(imageData)) { dataStream.Seek(imgInfo.offset, SeekOrigin.Begin); dataStream.Write(imgBuffer, 0, imgBuffer.Length); } break; } imgList[imageIdx] = imgInfo; }