Implement basic visualisation for pooling layers.

src/PoolingLayerAnimation.hpp

@@ -0,0 +1,26 @@
+#pragma once
+
+#include "Animation.hpp"
+#include "LayerData.hpp"
+#include "Texture.hpp"
+
+namespace fmri
+{
+    class PoolingLayerAnimation : public Animation
+    {
+    public:
+        PoolingLayerAnimation(const LayerData& prevData, const LayerData& curData, const std::vector<float>& prevPositions, const std::vector<float>& curPositions, float xDist);
+
+        void draw(float timeStep) override;
+
+    private:
+        Texture original;
+        Texture downSampled;
+        std::vector<float> startingPositions;
+        std::vector<float> deltas;
+        std::vector<float> textureCoordinates;
+
+        static Texture loadTextureForData(const LayerData& data);
+        static std::vector<float> computePositions(const std::vector<float> &nodePositions, float scaling = 1);
+    };
+}