Fix batch mode JPG Alpha, Rename Fast model & Fix tooltip z-index

common/models-list.ts

@@ -2,7 +2,7 @@ export const defaultModelsList = [
   { label: "General Photo (Real-ESRGAN)", value: "realesrgan-x4plus" },
   {
     label: "General Photo (Fast Real-ESRGAN)",
-    value: "RealESRGAN_General_x4_v3",
+    value: "realesrgan-x4fast",
   },
   { label: "General Photo (Remacri)", value: "remacri" },
   { label: "General Photo (Ultramix Balanced)", value: "ultramix_balanced" },

electron/commands/batch-upscayl.ts

@@ -53,7 +53,7 @@ const batchUpscayl = async (event, payload: BatchUpscaylPayload) => {
     ? customWidth || payload.scale
     : payload.scale;
 
-  const outputFolderName = `upscayl_${model}_${noImageProcessing ? initialScale : desiredScale}${useCustomWidth ? "px_" : "x_"}`;
+  const outputFolderName = `upscayl_${saveImageAs}_${model}_${noImageProcessing ? initialScale : desiredScale}${useCustomWidth ? "px" : "x"}`;
   outputFolderPath += slash + outputFolderName;
   if (!fs.existsSync(outputFolderPath)) {
     fs.mkdirSync(outputFolderPath, { recursive: true });
@@ -148,6 +148,7 @@ const batchUpscayl = async (event, payload: BatchUpscaylPayload) => {
           let upscaledImagePath = `${outputFolderPath}${slash}${removeFileExtension(
             file,
           )}.${saveImageAs}`;
+          let imageIsAlpha = false;
           if (
             isAlpha &&
             saveImageAs === "jpg" &&
@@ -155,6 +156,7 @@ const batchUpscayl = async (event, payload: BatchUpscaylPayload) => {
               `${outputFolderPath}${slash}${removeFileExtension(file)}.jpg.png`,
             )
           ) {
+            imageIsAlpha = true;
             console.log("This is an Alpha image!");
             upscaledImagePath = `${outputFolderPath}${slash}${removeFileExtension(file)}.jpg.png`;
           }
@@ -166,6 +168,7 @@ const batchUpscayl = async (event, payload: BatchUpscaylPayload) => {
             )}.${saveImageAs}`,
             desiredScale,
             saveImageAs,
+            imageIsAlpha,
           );
           if (
             isAlpha &&

electron/utils/convert-and-scale.ts

@@ -10,11 +10,30 @@ const convertAndScale = async (
   processedImagePath: string,
   scale: string,
   saveImageAs: ImageFormat,
+  imageIsAlpha?: boolean,
 ) => {
-  if (!customWidth && scale === "4" && compression === 0) {
+  // Skip conversion when the scale is 4x and compression is 0
+  // - When output format is WebP or PNG
+  // - When the image is not alpha and the output format is JPEG
+  if (
+    !customWidth &&
+    (saveImageAs === "png" || saveImageAs === "webp") &&
+    scale === "4" &&
+    compression === 0
+  ) {
+    logit("Skipping compression for 4x scale and 0% compression");
+    return;
+  } else if (
+    !customWidth &&
+    saveImageAs === "jpg" &&
+    scale === "4" &&
+    compression === 0 &&
+    !imageIsAlpha
+  ) {
     logit("Skipping compression for 4x scale and 0% compression");
     return;
   }
+
   let originalImage: Metadata | undefined;
 
   try {

renderer/components/upscayl-tab/config/LeftPaneImageSteps.tsx

@@ -311,7 +311,7 @@ function LeftPaneImageSteps({
         </button>
       </div>
 
-      <Tooltip className="max-w-sm" id="tooltip" />
+      <Tooltip className="z-50 max-w-sm" id="tooltip" />
     </div>
   );
 }