Update code to v1.0.14 (10)

android/app/src/main/cpp/ClientEx.h

@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2022  Gaurav Ujjwal.
+ *
+ * SPDX-License-Identifier:  GPL-3.0-or-later
+ *
+ * See COPYING.txt for more details.
+ */
+
+#ifndef AVNC_CLIENTEX_H
+#define AVNC_CLIENTEX_H
+
+#include <jni.h>
+#include "Cursor.h"
+
+/**
+ * We attach some additional data to every rfbClient.
+ * ClientEx is used as wrapper for this data.
+ */
+struct ClientEx {
+    // Reference to managed `VncClient`
+    jobject managedClient;
+
+    // Although frame width & height are maintained in rfbClient, those values
+    // are modified before our MallocFrameBuffer callback is triggered, and
+    // we cannot protect them with a mutex. So we maintain the framebuffer
+    // size here, protected with fbMutex.
+    int fbRealWidth;
+    int fbRealHeight;
+
+    // Cursor data used for client-side cursor rendering
+    Cursor *cursor;
+
+    // Protects modification to framebuffer & cursor
+    MUTEX(mutex);
+};
+
+const int ClientExTag = 1;
+
+ClientEx *getClientExtension(rfbClient *client) {
+    return (ClientEx *) rfbClientGetClientData(client, (void *) &ClientExTag);
+}
+
+void setClientExtension(rfbClient *client, ClientEx *ex) {
+    rfbClientSetClientData(client, (void *) &ClientExTag, ex);
+}
+
+/**
+ * Returns reference to managed `VncClient` associated with given rfbClient.
+ */
+jobject getManagedClient(rfbClient *client) {
+    return getClientExtension(client)->managedClient;
+}
+
+/**
+ * Associate given rfbClient & managed `VncClient`.
+ */
+void setManagedClient(rfbClient *client, jobject managedClient) {
+    getClientExtension(client)->managedClient = managedClient;
+}
+
+/**
+ * Create new ClientEx and assign it to given client.
+ */
+ClientEx *assignClientExtension(rfbClient *client) {
+    auto ex = (ClientEx *) malloc(sizeof(ClientEx));
+    if (ex) {
+        INIT_MUTEX(ex->mutex);
+        ex->cursor = nullptr;
+        setClientExtension(client, ex);
+    }
+    return ex;
+}
+
+/**
+ * Free all resources related to client extension.
+ */
+void freeClientExtension(rfbClient *client) {
+    auto ex = getClientExtension(client);
+    if (ex) {
+        TINI_MUTEX(ex->mutex);
+        freeCursor(ex->cursor);
+        free(ex);
+        setClientExtension(client, nullptr);
+    }
+}
+
+#endif //AVNC_CLIENTEX_H