XCEngine/tests/RHI/D3D12/unit/test_descriptor_heap.cpp

#include "fixtures/D3D12TestFixture.h"

TEST_F(D3D12TestFixture, DescriptorHeap_Create_CBV_SRV_UAV) {
    D3D12_DESCRIPTOR_HEAP_DESC heapDesc = {};
    heapDesc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV;
    heapDesc.NumDescriptors = 10;
    heapDesc.Flags = D3D12_DESCRIPTOR_HEAP_FLAG_SHADER_VISIBLE;
    
    ComPtr<ID3D12DescriptorHeap> descriptorHeap;
    HRESULT hr = GetDevice()->CreateDescriptorHeap(&heapDesc, IID_PPV_ARGS(&descriptorHeap));
    ASSERT_HRESULT_SUCCEEDED(hr);
    ASSERT_NE(descriptorHeap.Get(), nullptr);
    
    D3D12_DESCRIPTOR_HEAP_DESC desc = descriptorHeap->GetDesc();
    EXPECT_EQ(desc.Type, D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV);
    EXPECT_EQ(desc.NumDescriptors, 10);
}

TEST_F(D3D12TestFixture, DescriptorHeap_Create_Sampler) {
    D3D12_DESCRIPTOR_HEAP_DESC heapDesc = {};
    heapDesc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER;
    heapDesc.NumDescriptors = 5;
    heapDesc.Flags = D3D12_DESCRIPTOR_HEAP_FLAG_SHADER_VISIBLE;
    
    ComPtr<ID3D12DescriptorHeap> descriptorHeap;
    HRESULT hr = GetDevice()->CreateDescriptorHeap(&heapDesc, IID_PPV_ARGS(&descriptorHeap));
    ASSERT_HRESULT_SUCCEEDED(hr);
    
    D3D12_DESCRIPTOR_HEAP_DESC desc = descriptorHeap->GetDesc();
    EXPECT_EQ(desc.Type, D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER);
}

TEST_F(D3D12TestFixture, DescriptorHeap_Create_RTV) {
    D3D12_DESCRIPTOR_HEAP_DESC heapDesc = {};
    heapDesc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_RTV;
    heapDesc.NumDescriptors = 4;
    heapDesc.Flags = D3D12_DESCRIPTOR_HEAP_FLAG_NONE;
    
    ComPtr<ID3D12DescriptorHeap> descriptorHeap;
    HRESULT hr = GetDevice()->CreateDescriptorHeap(&heapDesc, IID_PPV_ARGS(&descriptorHeap));
    ASSERT_HRESULT_SUCCEEDED(hr);
    
    D3D12_DESCRIPTOR_HEAP_DESC desc = descriptorHeap->GetDesc();
    EXPECT_EQ(desc.Type, D3D12_DESCRIPTOR_HEAP_TYPE_RTV);
}

TEST_F(D3D12TestFixture, DescriptorHeap_Create_DSV) {
    D3D12_DESCRIPTOR_HEAP_DESC heapDesc = {};
    heapDesc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_DSV;
    heapDesc.NumDescriptors = 2;
    heapDesc.Flags = D3D12_DESCRIPTOR_HEAP_FLAG_NONE;
    
    ComPtr<ID3D12DescriptorHeap> descriptorHeap;
    HRESULT hr = GetDevice()->CreateDescriptorHeap(&heapDesc, IID_PPV_ARGS(&descriptorHeap));
    ASSERT_HRESULT_SUCCEEDED(hr);
    
    D3D12_DESCRIPTOR_HEAP_DESC desc = descriptorHeap->GetDesc();
    EXPECT_EQ(desc.Type, D3D12_DESCRIPTOR_HEAP_TYPE_DSV);
}

TEST_F(D3D12TestFixture, DescriptorHeap_Get_HandleIncrementSize) {
    UINT cbvSrvUavSize = GetDevice()->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV);
    UINT samplerSize = GetDevice()->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_SAMPLER);
    UINT rtvSize = GetDevice()->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_RTV);
    UINT dsvSize = GetDevice()->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_DSV);
    
    EXPECT_GT(cbvSrvUavSize, 0);
    EXPECT_GT(samplerSize, 0);
    EXPECT_GT(rtvSize, 0);
    EXPECT_GT(dsvSize, 0);
}