// Copyright 2020 The Dawn & Tint Authors
//
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// modification, are permitted provided that the following conditions are met:
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// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
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#include "dawn/native/opengl/BindGroupGL.h"

#include "dawn/native/Texture.h"
#include "dawn/native/opengl/BindGroupLayoutGL.h"
#include "dawn/native/opengl/DeviceGL.h"

namespace dawn::native::opengl {

// static
ResultOrError<Ref<BindGroup>> BindGroup::Create(
    Device* device,
    const UnpackedPtr<BindGroupDescriptor>& descriptor) {
    Ref<BindGroup> bindGroup = ToBackend(descriptor->layout->GetInternalBindGroupLayout())
                                   ->AllocateBindGroup(device, descriptor);
    DAWN_TRY(bindGroup->Initialize(descriptor));
    return bindGroup;
}

BindGroup::BindGroup(Device* device, const UnpackedPtr<BindGroupDescriptor>& descriptor)
    : BindGroupBase(this, device, descriptor) {}

BindGroup::~BindGroup() = default;

MaybeError BindGroup::InitializeImpl() {
    return {};
}

void BindGroup::DeleteThis() {
    // This function must first run the destructor and then deallocate memory. Take a reference to
    // the BindGroupLayout+SlabAllocator before running the destructor so this function can access
    // it afterwards and it's not destroyed prematurely.
    Ref<BindGroupLayout> layout = ToBackend(GetLayout());
    BindGroupBase::DeleteThis();
    layout->DeallocateBindGroup(this);
}

}  // namespace dawn::native::opengl