1 files changed, 88 insertions, 0 deletions
diff --git a/src/effects/cnn_v2_effect.h b/src/effects/cnn_v2_effect.h
new file mode 100644
index 0000000..d530d3b
--- /dev/null
+++ b/src/effects/cnn_v2_effect.h
@@ -0,0 +1,88 @@
+// CNN v2 Effect - Parametric Static Features
+// Multi-pass post-processing with 7D feature input
+// Supports per-layer kernel sizes (e.g., 1×1, 3×3, 5×5)
+
+#pragma once
+#include "gpu/effect.h"
+#include <vector>
+
+struct CNNv2EffectParams {
+  float blend_amount = 1.0f;
+};
+
+class CNNv2Effect : public PostProcessEffect {
+public:
+  explicit CNNv2Effect(const GpuContext& ctx);
+  explicit CNNv2Effect(const GpuContext& ctx, const CNNv2EffectParams& params);
+  ~CNNv2Effect();
+
+  void init(MainSequence* demo) override;
+  void resize(int width, int height) override;
+  void compute(WGPUCommandEncoder encoder,
+               const CommonPostProcessUniforms& uniforms) override;
+  void render(WGPURenderPassEncoder pass,
+              const CommonPostProcessUniforms& uniforms) override;
+  void update_bind_group(WGPUTextureView input_view) override;
+
+  void set_beat_modulation(bool enabled, float scale = 1.0f) {
+    beat_modulated_ = enabled;
+    beat_scale_ = scale;
+  }
+
+private:
+  struct LayerInfo {
+    uint32_t kernel_size;
+    uint32_t in_channels;
+    uint32_t out_channels;
+    uint32_t weight_offset;
+    uint32_t weight_count;
+  };
+
+  struct LayerParams {
+    uint32_t kernel_size;
+    uint32_t in_channels;
+    uint32_t out_channels;
+    uint32_t weight_offset;
+    uint32_t is_output_layer;
+    float blend_amount;
+    uint32_t is_layer_0;
+  };
+
+  struct StaticFeatureParams {
+    uint32_t mip_level;
+    uint32_t padding[3];
+  };
+
+  void create_textures();
+  void create_pipelines();
+  void load_weights();
+  void cleanup();
+
+  // Static features compute
+  WGPUComputePipeline static_pipeline_;
+  WGPUBindGroup static_bind_group_;
+  WGPUBuffer static_params_buffer_;
+  WGPUTexture static_features_tex_;
+  WGPUTextureView static_features_view_;
+  WGPUSampler linear_sampler_;
+
+  // CNN layers (storage buffer architecture)
+  WGPUComputePipeline layer_pipeline_;      // Single pipeline for all layers
+  WGPUBuffer weights_buffer_;               // Storage buffer for weights
+  std::vector<WGPUBuffer> layer_params_buffers_;  // Uniform buffers (one per layer)
+  std::vector<LayerInfo> layer_info_;       // Layer metadata
+  std::vector<WGPUBindGroup> layer_bind_groups_;  // Per-layer bind groups
+  std::vector<WGPUTexture> layer_textures_;       // Ping-pong buffers
+  std::vector<WGPUTextureView> layer_views_;
+
+  // Input mips
+  WGPUTexture input_mip_tex_;
+  WGPUTextureView input_mip_view_[3];
+  WGPUTextureView current_input_view_;
+
+  float blend_amount_ = 1.0f;
+  bool beat_modulated_ = false;
+  float beat_scale_ = 1.0f;
+  uint32_t mip_level_ = 0;
+  bool initialized_;
+};