DepthViz.h

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#pragma once
 
#include "../GraphicsPipeline.h"
#include "../Camera.h"
#include <SDL3/SDL_gpu.h>
 
namespace candlewick {
 
struct DepthDebugPass {
  enum VizStyle : int { VIZ_GRAYSCALE, VIZ_HEATMAP };
  struct Options {
    VizStyle mode;
    float near;
    float far;
    CameraProjection cam_proj = CameraProjection::PERSPECTIVE;
  };
  SDL_GPUTexture *depthTexture;
  SDL_GPUSampler *sampler;
  GraphicsPipeline pipeline{NoInit};
 
  static DepthDebugPass create(const RenderContext &renderer,
                               SDL_GPUTexture *depthTexture);
 
  void release(SDL_GPUDevice *device);
};
 
inline void DepthDebugPass::release(SDL_GPUDevice *device) {
  if (sampler) {
    SDL_ReleaseGPUSampler(device, sampler);
    sampler = NULL;
  }
  pipeline.release();
}
 
void renderDepthDebug(const RenderContext &renderer, CommandBuffer &cmdBuf,
                      const DepthDebugPass &pass,
                      const DepthDebugPass::Options &opts);
 
} // namespace candlewick