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// WGPU Resource RAII Wrapper
// Automatic release on destruction
//
// IMPORTANT: Field ordering matters for destruction order.
// Members are destroyed in reverse declaration order.
// Declare dependencies before dependents:
// RenderPipeline pipeline_; // Destroyed last
// BindGroup bind_group_; // Destroyed first (may reference pipeline)
#pragma once
#include "platform/platform.h"
#include "util/fatal_error.h"
template <typename T, void (*Release)(T)> class WGPUResource {
public:
WGPUResource() : ptr_(nullptr) {
}
~WGPUResource() {
if (ptr_)
Release(ptr_);
}
void set(T ptr) {
FATAL_ASSERT(ptr_ == nullptr);
ptr_ = ptr;
}
void replace(T ptr) {
if (ptr_)
Release(ptr_);
ptr_ = ptr;
}
T get() const {
return ptr_;
}
T* get_address() {
return &ptr_;
}
private:
T ptr_;
WGPUResource(const WGPUResource&) = delete;
WGPUResource& operator=(const WGPUResource&) = delete;
};
using BindGroup = WGPUResource<WGPUBindGroup, wgpuBindGroupRelease>;
using RenderPipeline =
WGPUResource<WGPURenderPipeline, wgpuRenderPipelineRelease>;
using ComputePipeline =
WGPUResource<WGPUComputePipeline, wgpuComputePipelineRelease>;
using Sampler = WGPUResource<WGPUSampler, wgpuSamplerRelease>;
using Texture = WGPUResource<WGPUTexture, wgpuTextureRelease>;
using TextureView = WGPUResource<WGPUTextureView, wgpuTextureViewRelease>;
using Buffer = WGPUResource<WGPUBuffer, wgpuBufferRelease>;
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