Fixed linux dependency donwloads, fixed slow download speeds

Editor/Core/PCSXReduxDownloader.cs

@@ -94,34 +94,20 @@ namespace SplashEdit.EditorCode
 
                 // Step 3: Download the file
                 string tempFile = Path.Combine(Path.GetTempPath(), $"pcsx-redux-{latestBuildId}.zip");
-                
                 EditorUtility.DisplayProgressBar("Downloading PCSX-Redux", "Downloading...", 0.1f);
 
-                using (var response = await _http.GetAsync(downloadUrl, HttpCompletionOption.ResponseHeadersRead))
+                using (var client = new System.Net.WebClient())
                 {
-                    response.EnsureSuccessStatusCode();
-                    long? totalBytes = response.Content.Headers.ContentLength;
-                    long downloadedBytes = 0;
-
-                    using (var fileStream = File.Create(tempFile))
-                    using (var downloadStream = await response.Content.ReadAsStreamAsync())
+                    client.Headers.Add("User-Agent", "SplashEdit/1.0");
+                    
+                    client.DownloadProgressChanged += (s, e) =>
                     {
-                        byte[] buffer = new byte[81920];
-                        int bytesRead;
-                        while ((bytesRead = await downloadStream.ReadAsync(buffer, 0, buffer.Length)) > 0)
-                        {
-                            await fileStream.WriteAsync(buffer, 0, bytesRead);
-                            downloadedBytes += bytesRead;
+                        float progress = 0.1f + 0.8f * (e.ProgressPercentage / 100f);
+                        string sizeMB = $"{e.BytesReceived / (1024 * 1024)}/{e.TotalBytesToReceive / (1024 * 1024)} MB";
+                        EditorUtility.DisplayProgressBar("Downloading PCSX-Redux", $"Downloading... {sizeMB}", progress);
+                    };
 
-                            if (totalBytes.HasValue)
-                            {
-                                float progress = (float)downloadedBytes / totalBytes.Value;
-                                string sizeMB = $"{downloadedBytes / (1024 * 1024)}/{totalBytes.Value / (1024 * 1024)} MB";
-                                EditorUtility.DisplayProgressBar("Downloading PCSX-Redux",
-                                    $"Downloading... {sizeMB}", progress);
-                            }
-                        }
-                    }
+                    await client.DownloadFileTaskAsync(new Uri(downloadUrl), tempFile);
                 }
 
                 log?.Invoke($"Downloaded to {tempFile}");
@@ -144,6 +130,7 @@ namespace SplashEdit.EditorCode
                     };
                     var proc = Process.Start(psi);
                     proc?.WaitForExit();
+
                 }
                 else
                 {
@@ -151,6 +138,20 @@ namespace SplashEdit.EditorCode
                     log?.Invoke($"Extracted to {installDir}");
                 }
 
+                // Make executable
+
+                if(Application.platform == RuntimePlatform.LinuxEditor) {
+                    var psi = new ProcessStartInfo
+                    {
+                        FileName = "chmod",
+                        Arguments = $"+x \"{SplashBuildPaths.PCSXReduxBinary}\"",
+                        UseShellExecute = false,
+                        CreateNoWindow = true
+                    };
+                    var proc = Process.Start(psi);
+                    proc?.WaitForExit();
+                }
+
                 // Clean up temp file
                 try { File.Delete(tempFile); } catch { }