Better handle thumbnail generation of extreme aspect ratio images (fixes #3794)

* Backport fix taken from ART * Enforce minimal thumbnail size of 1x1 px in two places, prevents divison by zero and empty image generation
2020-10-25 18:24:30 +01:00
parent b4f68adb64
commit 1318935a87
11 changed files with 82 additions and 57 deletions
--- a/rtgui/options.h
+++ b/rtgui/options.h
@@ -281,6 +281,7 @@ public:
    CPBKeyType CPBKeys; // Custom Profile Builder's key type
    int editorToSendTo;
    int maxThumbnailHeight;
+    int maxThumbnailWidth;
    std::size_t maxCacheEntries;
    int thumbInterp; // 0: nearest, 1: bilinear
    std::vector<Glib::ustring> parseExtensions;   // List containing all extensions type