Refine info panel metadata display and compare HUD layout

Author: justnullname

QuickView/ImageEngine.cpp

@@ -1108,6 +1108,9 @@ void ImageEngine::FastLane::QueueWorker() {
                 e.metadata.Width = rawFrame.width;
                 e.metadata.Height = rawFrame.height;
                 e.metadata.Format = info.format; // [Scout] Direct from PeekHeader
+                e.metadata.FormatDetails = rawFrame.formatDetails;
+                e.metadata.LoaderName = loaderName;
+                e.metadata.FileSize = info.fileSize;
 
                 // [v5.3] Metadata is now populated by LoadToFrame (Unified path)
                 // We don't call LoadToFrame with pMetadata in FastLane currently, 

QuickView/ImageLoader.cpp

@@ -6800,10 +6800,44 @@ static bool TryReadMetadataNative(LPCWSTR filePath, CImageLoader::ImageMetadata*
 
         bool success = false;
         if (jpeg_read_header(&cinfo, TRUE) == JPEG_HEADER_OK) {
+             pMetadata->Format = L"JPEG";
              // [v10.0] Fix: Always extract dimensions natively to prevent WIC 2633px preview regression
              pMetadata->Width = cinfo.image_width;
              pMetadata->Height = cinfo.image_height;
 
+             // Fill JPEG format details even when there is no EXIF, so the Info Panel can show chroma/Q/progressive.
+             {
+                 int q = GetJpegQualityFromBuffer(header.data(), header.size());
+
+                 std::wstring sub;
+                 if (cinfo.num_components == 3) {
+                     int h0 = cinfo.comp_info[0].h_samp_factor;
+                     int v0 = cinfo.comp_info[0].v_samp_factor;
+                     int h1 = cinfo.comp_info[1].h_samp_factor;
+                     int v1 = cinfo.comp_info[1].v_samp_factor;
+                     int h2 = cinfo.comp_info[2].h_samp_factor;
+                     int v2 = cinfo.comp_info[2].v_samp_factor;
+
+                     if (h0 == 2 && v0 == 2 && h1 == 1 && v1 == 1 && h2 == 1 && v2 == 1) sub = L"4:2:0";
+                     else if (h0 == 2 && v0 == 1 && h1 == 1 && v1 == 1 && h2 == 1 && v2 == 1) sub = L"4:2:2";
+                     else if (h0 == 1 && v0 == 1 && h1 == 1 && v1 == 1 && h2 == 1 && v2 == 1) sub = L"4:4:4";
+                     else sub = L"4:4:0";
+                 } else if (cinfo.num_components == 1) {
+                     sub = L"Gray";
+                 }
+
+                 wchar_t fmtBuf[64]{};
+                 if (q > 0 && !sub.empty()) swprintf_s(fmtBuf, L"%s Q=%d", sub.c_str(), q);
+                 else if (q > 0) swprintf_s(fmtBuf, L"Q=%d", q);
+                 else if (!sub.empty()) swprintf_s(fmtBuf, L"%s", sub.c_str());
+
+                 pMetadata->FormatDetails = fmtBuf;
+                 if (jpeg_has_multiple_scans(&cinfo)) {
+                     if (!pMetadata->FormatDetails.empty()) pMetadata->FormatDetails += L" ";
+                     pMetadata->FormatDetails += L"Prog";
+                 }
+             }
+
              std::vector<uint8_t> iccData;
 
              for (jpeg_saved_marker_ptr marker = cinfo.marker_list; marker; marker = marker->next) {
@@ -6828,7 +6862,7 @@ static bool TryReadMetadataNative(LPCWSTR filePath, CImageLoader::ImageMetadata*
              }
         }
         jpeg_destroy_decompress(&cinfo);
-        return success;
+        return success || !pMetadata->FormatDetails.empty() || pMetadata->Width > 0;
     }
 
     // 2. WebP

QuickView/ImageLoader.h

@@ -392,6 +392,8 @@ class CImageLoader {
     ComPtr<IWICImagingFactory> m_wicFactory;
 
     // [JXL Global Runner] Static singleton
+    static void* s_jxlRunner;
+    static std::mutex s_jxlRunnerMutex;
 
     // Specialized High-Performance Loaders
     HRESULT LoadThumbJPEG(LPCWSTR filePath, int targetSize, ThumbData* pData); // New TurboJPEG Scaled Loader