Scaled down and converted images before sending them to AI models (#1101)

app/MindWork AI Studio/Tools/Rust/ModelImageErrorCode.cs

@@ -0,0 +1,63 @@
+namespace AIStudio.Tools.Rust;
+
+/// <summary>
+/// Why the Rust runtime could not prepare an image for an AI model.
+/// </summary>
+/// <remarks>
+/// UNKNOWN comes first on purpose. The converter for the enums of the runtime falls back to the
+/// default value for a code it does not know, e.g., from a newer runtime, and such a code must
+/// never read as a prepared image.
+/// </remarks>
+public enum ModelImageErrorCode
+{
+    /// <summary>
+    /// The runtime answered with a code this version does not know, or it could not be asked at all.
+    /// </summary>
+    UNKNOWN,
+
+    /// <summary>
+    /// No failure happened: the image was prepared.
+    /// </summary>
+    NONE,
+
+    //
+    // Codes reported by the Rust runtime:
+    //
+
+    FILE_NOT_FOUND,
+
+    /// <summary>
+    /// The file exists, but could not be opened, e.g., for lack of permission.
+    /// </summary>
+    FILE_NOT_READABLE,
+
+    /// <summary>
+    /// AI Studio cannot decode this image format, e.g., HEIC, AVIF, or SVG.
+    /// </summary>
+    UNSUPPORTED_FORMAT,
+
+    /// <summary>
+    /// The content of the file does not match its file extension.
+    /// </summary>
+    CONTENT_MISMATCH,
+
+    /// <summary>
+    /// The file is damaged or uses a variant of its format which cannot be decoded.
+    /// </summary>
+    NOT_DECODABLE,
+
+    /// <summary>
+    /// Decoding the image would need more memory than the runtime allows.
+    /// </summary>
+    TOO_MANY_PIXELS,
+
+    /// <summary>
+    /// Not even the smallest size and lowest quality the runtime accepts fit into the byte budget.
+    /// </summary>
+    BUDGET_NOT_REACHABLE,
+
+    /// <summary>
+    /// Any failure in the runtime which does not carry a code of its own.
+    /// </summary>
+    INTERNAL,
+}