src/gpu/effects/post_process_helper.h


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// This file is part of the 64k demo project.
// It declares helper functions for post-processing effects.

#pragma once

#include "gpu/gpu.h"

// Standard post-process bind group layout (group 0):
#define PP_BINDING_SAMPLER 0  // Sampler for input texture
#define PP_BINDING_TEXTURE 1  // Input texture (previous render pass)
#define PP_BINDING_UNIFORMS 2 // Custom uniforms buffer

// Helper to create a standard post-processing pipeline
// Uniforms are accessible to both vertex and fragment shaders
WGPURenderPipeline create_post_process_pipeline(WGPUDevice device,
                                                WGPUTextureFormat format,
                                                const char* shader_code);

// Helper to update bind group for post-processing effects
void pp_update_bind_group(WGPUDevice device, WGPURenderPipeline pipeline,
                          WGPUBindGroup* bind_group, WGPUTextureView input_view,
                          GpuBuffer uniforms);