// This file is part of the 64k demo project.
// It defines the CircleMaskEffect class for masking system demonstration.
// Creates a circular mask and renders green outside the circle.

#ifndef CIRCLE_MASK_EFFECT_H_
#define CIRCLE_MASK_EFFECT_H_

#include "gpu/effect.h"
#include "gpu/effects/post_process_helper.h"
#include "gpu/uniform_helper.h"

class CircleMaskEffect : public Effect {
 public:
  CircleMaskEffect(const GpuContext& ctx, float radius = 0.4f);
  ~CircleMaskEffect() override;

  void init(MainSequence* demo) override;
  void compute(WGPUCommandEncoder encoder, float time, float beat,
               float intensity, float aspect_ratio) override;
  void render(WGPURenderPassEncoder pass, float time, float beat,
              float intensity, float aspect_ratio) override;

 private:
  struct CircleMaskParams {
    float radius;
    float _pad[3];
  };
  static_assert(sizeof(CircleMaskParams) == 16,
                "CircleMaskParams must be 16 bytes for WGSL alignment");

  MainSequence* demo_ = nullptr;
  float radius_;

  WGPURenderPipeline compute_pipeline_ = nullptr;
  WGPUBindGroup compute_bind_group_ = nullptr;
  UniformBuffer<CircleMaskParams> compute_params_;

  WGPURenderPipeline render_pipeline_ = nullptr;
  WGPUBindGroup render_bind_group_ = nullptr;
  WGPUSampler mask_sampler_ = nullptr;
};

#endif /* CIRCLE_MASK_EFFECT_H_ */