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// This file is part of the 64k demo project.
// It defines the public interface for the GPU rendering system.
// Coordinates WebGPU lifecycle and draw calls.
#pragma once
#include <webgpu.h>
struct GLFWwindow;
// Basic wrapper for WebGPU buffers
struct GpuBuffer {
WGPUBuffer buffer;
size_t size;
};
// Encapsulates a compute operation
struct ComputePass {
WGPUComputePipeline pipeline;
WGPUBindGroup bind_group;
uint32_t workgroup_size_x;
uint32_t workgroup_size_y;
uint32_t workgroup_size_z;
};
// Encapsulates a render operation
struct RenderPass {
WGPURenderPipeline pipeline;
WGPUBindGroup bind_group;
uint32_t vertex_count;
uint32_t instance_count;
};
void gpu_init(GLFWwindow *window);
void gpu_draw(float audio_peak, float aspect_ratio, float time, float beat);
void gpu_shutdown();
// Helper functions (exposed for internal/future use)
struct ResourceBinding {
GpuBuffer buffer;
WGPUBufferBindingType type; // e.g., WGPUBufferBindingType_Uniform,
// WGPUBufferBindingType_Storage
};
GpuBuffer gpu_create_buffer(WGPUDevice device, size_t size, uint32_t usage,
const void *data = nullptr);
ComputePass gpu_create_compute_pass(WGPUDevice device, const char *shader_code,
ResourceBinding *bindings,
int num_bindings);
RenderPass gpu_create_render_pass(WGPUDevice device,
WGPUTextureFormat format, // Needed for render pipeline
const char *shader_code,
ResourceBinding *bindings, int num_bindings);
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