added LottieBigSize for performance measurement

Author: hermet

res/lottie/extensions/bigsize.json

@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2026 ThorVG project. All rights reserved.
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "Example.h"
+
+/************************************************************************/
+/* ThorVG Drawing Contents                                              */
+/************************************************************************/
+
+struct UserExample : tvgexam::Example
+{
+    unique_ptr<tvg::Animation> animation;
+
+    bool content(tvg::Canvas* canvas, uint32_t w, uint32_t h) override
+    {
+        //The default font for fallback in case
+        tvg::Text::load(EXAMPLE_DIR"/font/PublicSans-Regular.ttf");
+
+        //Animation Controller
+        animation = unique_ptr<tvg::Animation>(tvg::Animation::gen());
+        auto picture = animation->picture();
+        picture->origin(0.5f, 0.5f);  //center origin
+
+        //Background
+        auto shape = tvg::Shape::gen();
+        shape->appendRect(0, 0, w, h);
+        shape->fill(50, 50, 50);
+
+        canvas->add(shape);
+
+        if (!tvgexam::verify(picture->load(EXAMPLE_DIR"/lottie/extensions/bigsize.json"))) return false;
+
+        //image scaling preserving its aspect ratio
+        float w2, h2;
+        picture->size(&w2, &h2);
+        auto scale = (w2 > h2) ? w / w2 : h / h2;
+        picture->scale(scale);
+        picture->translate(float(w) * 0.5f, float(h) * 0.5f);
+
+        canvas->add(picture);
+
+        return true;
+    }
+
+    bool update(tvg::Canvas* canvas, uint32_t elapsed) override
+    {
+        auto progress = tvgexam::progress(elapsed, animation->duration());
+
+        //Update animation frame only when it's changed
+        if (animation->frame(animation->totalFrame() * progress) == tvg::Result(0)) {
+            canvas->update();
+            return true;
+        }
+
+        return false;
+    }
+};
+
+
+/************************************************************************/
+/* Entry Point                                                          */
+/************************************************************************/
+
+int main(int argc, char **argv)
+{
+    return tvgexam::main(new UserExample, argc, argv, false, 1280, 1280, 4, true);
+}

src/LottieBigSize.cpp

@@ -101,6 +101,7 @@ if cc.links(lottie_example, dependencies : thorvg_dep, include_directories : tho
         'LottieExpressions.cpp',
         'LottieExtension.cpp',
         'LottieInteraction.cpp',
+        'LottieBigSize.cpp',
         'LottieTweening.cpp'
     ]
     message('ThorVG Lottie found. Enabled Lottie examples.')