src/effects/gaussian_blur_effect.h


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// Gaussian blur effect v2 - single-pass blur

#pragma once

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

struct GaussianBlurParams {
  float strength = 1.0f;
  float strength_audio = 0.5f;
  float stretch = 1.0f;
  float _pad = 0.0f;
};
static_assert(sizeof(GaussianBlurParams) == 16,
              "GaussianBlurParams must be 16 bytes");

class GaussianBlurEffect : public Effect {
 public:
  GaussianBlurEffect(const GpuContext& ctx,
                       const std::vector<std::string>& inputs,
                       const std::vector<std::string>& outputs);

  void render(WGPUCommandEncoder encoder, const UniformsSequenceParams& params,
              NodeRegistry& nodes) override;

 private:
  WGPURenderPipeline pipeline_;
  WGPUBindGroup bind_group_;
  WGPUSampler sampler_;
  GaussianBlurParams blur_params_;
  UniformBuffer<GaussianBlurParams> params_buffer_;
  UniformBuffer<UniformsSequenceParams> uniforms_buffer_;
};