//*********************************************************
//
// Copyright (c) Microsoft. All rights reserved.
// This code is licensed under the MIT License (MIT).
// THIS CODE IS PROVIDED *AS IS* WITHOUT WARRANTY OF
// ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY
// IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR
// PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.
//
//*********************************************************
#include "stdafx.h"
#include "D3D12HelloWindow.h"
D3D12HelloWindow::D3D12HelloWindow(UINT width, UINT height, std::wstring name) :
DXSample(width, height, name),
m_frameIndex(0),
m_rtvDescriptorSize(0)
{
}
void D3D12HelloWindow::OnInit()
{
LoadPipeline();
LoadAssets();
}
// Load the rendering pipeline dependencies.
void D3D12HelloWindow::LoadPipeline()
{
UINT dxgiFactoryFlags = 0;
#if defined(_DEBUG)
// Enable the debug layer (requires the Graphics Tools "optional feature").
// NOTE: Enabling the debug layer after device creation will invalidate the active device.
{
ComPtr<ID3D12Debug> debugController;
if (SUCCEEDED(D3D12GetDebugInterface(IID_PPV_ARGS(&debugController))))
{
debugController->EnableDebugLayer();
// Enable additional debug layers.
dxgiFactoryFlags |= DXGI_CREATE_FACTORY_DEBUG;
}
}
#endif
ComPtr<IDXGIFactory4> factory;
ThrowIfFailed(CreateDXGIFactory2(dxgiFactoryFlags, IID_PPV_ARGS(&factory)));
if (m_useWarpDevice)
{
ComPtr<IDXGIAdapter> warpAdapter;
ThrowIfFailed(factory->EnumWarpAdapter(IID_PPV_ARGS(&warpAdapter)));
ThrowIfFailed(D3D12CreateDevice(
warpAdapter.Get(),
D3D_FEATURE_LEVEL_11_0,
IID_PPV_ARGS(&m_device)
));
}
else
{
ComPtr<IDXGIAdapter1> hardwareAdapter;
GetHardwareAdapter(factory.Get(), &hardwareAdapter);
ThrowIfFailed(D3D12CreateDevice(
hardwareAdapter.Get(),
D3D_FEATURE_LEVEL_11_0,
IID_PPV_ARGS(&m_device)
));
}
// Describe and create the command queue.
D3D12_COMMAND_QUEUE_DESC queueDesc = {};
queueDesc.Flags = D3D12_COMMAND_QUEUE_FLAG_NONE;
queueDesc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
ThrowIfFailed(m_device->CreateCommandQueue(&queueDesc, IID_PPV_ARGS(&m_commandQueue)));
// Describe and create the swap chain.
DXGI_SWAP_CHAIN_DESC1 swapChainDesc = {};
swapChainDesc.BufferCount = FrameCount;
swapChainDesc.Width = m_width;
swapChainDesc.Height = m_height;
swapChainDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
swapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_DISCARD;
swapChainDesc.SampleDesc.Count = 1;
ComPtr<IDXGISwapChain1> swapChain;
ThrowIfFailed(factory->CreateSwapChainForHwnd(
m_commandQueue.Get(), // Swap chain needs the queue so that it can force a flush on it.
Win32Application::GetHwnd(),
&swapChainDesc,
nullptr,
nullptr,
&swapChain
));
// This sample does not support fullscreen transitions.
ThrowIfFailed(factory->MakeWindowAssociation(Win32Application::GetHwnd(), DXGI_MWA_NO_ALT_ENTER));
ThrowIfFailed(swapChain.As(&m_swapChain));
m_frameIndex = m_swapChain->GetCurrentBackBufferIndex();
// Create descriptor heaps.
{
// Describe and create a render target view (RTV) descriptor heap.
D3D12_DESCRIPTOR_HEAP_DESC rtvHeapDesc = {};
rtvHeapDesc.NumDescriptors = FrameCount;
rtvHeapDesc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_RTV;
rtvHeapDesc.Flags = D3D12_DESCRIPTOR_HEAP_FLAG_NONE;
ThrowIfFailed(m_device->CreateDescriptorHeap(&rtvHeapDesc, IID_PPV_ARGS(&m_rtvHeap)));
m_rtvDescriptorSize = m_device->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_RTV);
}
// Create frame resources.
{
CD3DX12_CPU_DESCRIPTOR_HANDLE rtvHandle(m_rtvHeap->GetCPUDescriptorHandleForHeapStart());
// Create a RTV for each frame.
for (UINT n = 0; n < FrameCount; n++)
{
ThrowIfFailed(m_swapChain->GetBuffer(n, IID_PPV_ARGS(&m_renderTargets[n])));
m_device->CreateRenderTargetView(m_renderTargets[n].Get(), nullptr, rtvHandle);
rtvHandle.Offset(1, m_rtvDescriptorSize);
}
}
ThrowIfFailed(m_device->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(&m_commandAllocator)));
}
// Load the sample assets.
void D3D12HelloWindow::LoadAssets()
{
// Create the command list.
ThrowIfFailed(m_device->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, m_commandAllocator.Get(), nullptr, IID_PPV_ARGS(&m_commandList)));
// Command lists are created in the recording state, but there is nothing
// to record yet. The main loop expects it to be closed, so close it now.
ThrowIfFailed(m_commandList->Close());
// Create synchronization objects.
{
ThrowIfFailed(m_device->CreateFence(0, D3D12_FENCE_FLAG_NONE, IID_PPV_ARGS(&m_fence)));
m_fenceValue = 1;
// Create an event handle to use for frame synchronization.
m_fenceEvent = CreateEvent(nullptr, FALSE, FALSE, nullptr);
if (m_fenceEvent == nullptr)
{
ThrowIfFailed(HRESULT_FROM_WIN32(GetLastError()));
}
}
}
// Update frame-based values.
void D3D12HelloWindow::OnUpdate()
{
}
// Render the scene.
void D3D12HelloWindow::OnRender()
{
// Record all the commands we need to render the scene into the command list.
PopulateCommandList();
// Execute the command list.
ID3D12CommandList* ppCommandLists[] = { m_commandList.Get() };
m_commandQueue->ExecuteCommandLists(_countof(ppCommandLists), ppCommandLists);
// Present the frame.
ThrowIfFailed(m_swapChain->Present(1, 0));
WaitForPreviousFrame();
}
void D3D12HelloWindow::OnDestroy()
{
// Ensure that the GPU is no longer referencing resources that are about to be
// cleaned up by the destructor.
WaitForPreviousFrame();
CloseHandle(m_fenceEvent);
}
void D3D12HelloWindow::PopulateCommandList()
{
// Command list allocators can only be reset when the associated
// command lists have finished execution on the GPU; apps should use
// fences to determine GPU execution progress.
ThrowIfFailed(m_commandAllocator->Reset());
// However, when ExecuteCommandList() is called on a particular command
// list, that command list can then be reset at any time and must be before
// re-recording.
ThrowIfFailed(m_commandList->Reset(m_commandAllocator.Get(), m_pipelineState.Get()));
// Indicate that the back buffer will be used as a render target.
m_commandList->ResourceBarrier(1, &CD3DX12_RESOURCE_BARRIER::Transition(m_renderTargets[m_frameIndex].Get(), D3D12_RESOURCE_STATE_PRESENT, D3D12_RESOURCE_STATE_RENDER_TARGET));
CD3DX12_CPU_DESCRIPTOR_HANDLE rtvHandle(m_rtvHeap->GetCPUDescriptorHandleForHeapStart(), m_frameIndex, m_rtvDescriptorSize);
// Record commands.
const float clearColor[] = { 0.0f, 0.8f, 0.8f, 1.0f };
m_commandList->ClearRenderTargetView(rtvHandle, clearColor, 0, nullptr);
// Indicate that the back buffer will now be used to present.
m_commandList->ResourceBarrier(1, &CD3DX12_RESOURCE_BARRIER::Transition(m_renderTargets[m_frameIndex].Get(), D3D12_RESOURCE_STATE_RENDER_TARGET, D3D12_RESOURCE_STATE_PRESENT));
ThrowIfFailed(m_commandList->Close());
}
void D3D12HelloWindow::WaitForPreviousFrame()
{
// WAITING FOR THE FRAME TO COMPLETE BEFORE CONTINUING IS NOT BEST PRACTICE.
// This is code implemented as such for simplicity. The D3D12HelloFrameBuffering
// sample illustrates how to use fences for efficient resource usage and to
// maximize GPU utilization.
// Signal and increment the fence value.
const UINT64 fence = m_fenceValue;
ThrowIfFailed(m_commandQueue->Signal(m_fence.Get(), fence));
m_fenceValue++;
// Wait until the previous frame is finished.
if (m_fence->GetCompletedValue() < fence)
{
ThrowIfFailed(m_fence->SetEventOnCompletion(fence, m_fenceEvent));
WaitForSingleObject(m_fenceEvent, INFINITE);
}
m_frameIndex = m_swapChain->GetCurrentBackBufferIndex();
}
//
// Copyright (c) Microsoft. All rights reserved.
// This code is licensed under the MIT License (MIT).
// THIS CODE IS PROVIDED *AS IS* WITHOUT WARRANTY OF
// ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY
// IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR
// PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.
//
//*********************************************************
#include "stdafx.h"
#include "D3D12HelloWindow.h"
D3D12HelloWindow::D3D12HelloWindow(UINT width, UINT height, std::wstring name) :
DXSample(width, height, name),
m_frameIndex(0),
m_rtvDescriptorSize(0)
{
}
void D3D12HelloWindow::OnInit()
{
LoadPipeline();
LoadAssets();
}
// Load the rendering pipeline dependencies.
void D3D12HelloWindow::LoadPipeline()
{
UINT dxgiFactoryFlags = 0;
#if defined(_DEBUG)
// Enable the debug layer (requires the Graphics Tools "optional feature").
// NOTE: Enabling the debug layer after device creation will invalidate the active device.
{
ComPtr<ID3D12Debug> debugController;
if (SUCCEEDED(D3D12GetDebugInterface(IID_PPV_ARGS(&debugController))))
{
debugController->EnableDebugLayer();
// Enable additional debug layers.
dxgiFactoryFlags |= DXGI_CREATE_FACTORY_DEBUG;
}
}
#endif
ComPtr<IDXGIFactory4> factory;
ThrowIfFailed(CreateDXGIFactory2(dxgiFactoryFlags, IID_PPV_ARGS(&factory)));
if (m_useWarpDevice)
{
ComPtr<IDXGIAdapter> warpAdapter;
ThrowIfFailed(factory->EnumWarpAdapter(IID_PPV_ARGS(&warpAdapter)));
ThrowIfFailed(D3D12CreateDevice(
warpAdapter.Get(),
D3D_FEATURE_LEVEL_11_0,
IID_PPV_ARGS(&m_device)
));
}
else
{
ComPtr<IDXGIAdapter1> hardwareAdapter;
GetHardwareAdapter(factory.Get(), &hardwareAdapter);
ThrowIfFailed(D3D12CreateDevice(
hardwareAdapter.Get(),
D3D_FEATURE_LEVEL_11_0,
IID_PPV_ARGS(&m_device)
));
}
// Describe and create the command queue.
D3D12_COMMAND_QUEUE_DESC queueDesc = {};
queueDesc.Flags = D3D12_COMMAND_QUEUE_FLAG_NONE;
queueDesc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
ThrowIfFailed(m_device->CreateCommandQueue(&queueDesc, IID_PPV_ARGS(&m_commandQueue)));
// Describe and create the swap chain.
DXGI_SWAP_CHAIN_DESC1 swapChainDesc = {};
swapChainDesc.BufferCount = FrameCount;
swapChainDesc.Width = m_width;
swapChainDesc.Height = m_height;
swapChainDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
swapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_DISCARD;
swapChainDesc.SampleDesc.Count = 1;
ComPtr<IDXGISwapChain1> swapChain;
ThrowIfFailed(factory->CreateSwapChainForHwnd(
m_commandQueue.Get(), // Swap chain needs the queue so that it can force a flush on it.
Win32Application::GetHwnd(),
&swapChainDesc,
nullptr,
nullptr,
&swapChain
));
// This sample does not support fullscreen transitions.
ThrowIfFailed(factory->MakeWindowAssociation(Win32Application::GetHwnd(), DXGI_MWA_NO_ALT_ENTER));
ThrowIfFailed(swapChain.As(&m_swapChain));
m_frameIndex = m_swapChain->GetCurrentBackBufferIndex();
// Create descriptor heaps.
{
// Describe and create a render target view (RTV) descriptor heap.
D3D12_DESCRIPTOR_HEAP_DESC rtvHeapDesc = {};
rtvHeapDesc.NumDescriptors = FrameCount;
rtvHeapDesc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_RTV;
rtvHeapDesc.Flags = D3D12_DESCRIPTOR_HEAP_FLAG_NONE;
ThrowIfFailed(m_device->CreateDescriptorHeap(&rtvHeapDesc, IID_PPV_ARGS(&m_rtvHeap)));
m_rtvDescriptorSize = m_device->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_RTV);
}
// Create frame resources.
{
CD3DX12_CPU_DESCRIPTOR_HANDLE rtvHandle(m_rtvHeap->GetCPUDescriptorHandleForHeapStart());
// Create a RTV for each frame.
for (UINT n = 0; n < FrameCount; n++)
{
ThrowIfFailed(m_swapChain->GetBuffer(n, IID_PPV_ARGS(&m_renderTargets[n])));
m_device->CreateRenderTargetView(m_renderTargets[n].Get(), nullptr, rtvHandle);
rtvHandle.Offset(1, m_rtvDescriptorSize);
}
}
ThrowIfFailed(m_device->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(&m_commandAllocator)));
}
// Load the sample assets.
void D3D12HelloWindow::LoadAssets()
{
// Create the command list.
ThrowIfFailed(m_device->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, m_commandAllocator.Get(), nullptr, IID_PPV_ARGS(&m_commandList)));
// Command lists are created in the recording state, but there is nothing
// to record yet. The main loop expects it to be closed, so close it now.
ThrowIfFailed(m_commandList->Close());
// Create synchronization objects.
{
ThrowIfFailed(m_device->CreateFence(0, D3D12_FENCE_FLAG_NONE, IID_PPV_ARGS(&m_fence)));
m_fenceValue = 1;
// Create an event handle to use for frame synchronization.
m_fenceEvent = CreateEvent(nullptr, FALSE, FALSE, nullptr);
if (m_fenceEvent == nullptr)
{
ThrowIfFailed(HRESULT_FROM_WIN32(GetLastError()));
}
}
}
// Update frame-based values.
void D3D12HelloWindow::OnUpdate()
{
}
// Render the scene.
void D3D12HelloWindow::OnRender()
{
// Record all the commands we need to render the scene into the command list.
PopulateCommandList();
// Execute the command list.
ID3D12CommandList* ppCommandLists[] = { m_commandList.Get() };
m_commandQueue->ExecuteCommandLists(_countof(ppCommandLists), ppCommandLists);
// Present the frame.
ThrowIfFailed(m_swapChain->Present(1, 0));
WaitForPreviousFrame();
}
void D3D12HelloWindow::OnDestroy()
{
// Ensure that the GPU is no longer referencing resources that are about to be
// cleaned up by the destructor.
WaitForPreviousFrame();
CloseHandle(m_fenceEvent);
}
void D3D12HelloWindow::PopulateCommandList()
{
// Command list allocators can only be reset when the associated
// command lists have finished execution on the GPU; apps should use
// fences to determine GPU execution progress.
ThrowIfFailed(m_commandAllocator->Reset());
// However, when ExecuteCommandList() is called on a particular command
// list, that command list can then be reset at any time and must be before
// re-recording.
ThrowIfFailed(m_commandList->Reset(m_commandAllocator.Get(), m_pipelineState.Get()));
// Indicate that the back buffer will be used as a render target.
m_commandList->ResourceBarrier(1, &CD3DX12_RESOURCE_BARRIER::Transition(m_renderTargets[m_frameIndex].Get(), D3D12_RESOURCE_STATE_PRESENT, D3D12_RESOURCE_STATE_RENDER_TARGET));
CD3DX12_CPU_DESCRIPTOR_HANDLE rtvHandle(m_rtvHeap->GetCPUDescriptorHandleForHeapStart(), m_frameIndex, m_rtvDescriptorSize);
// Record commands.
const float clearColor[] = { 0.0f, 0.8f, 0.8f, 1.0f };
m_commandList->ClearRenderTargetView(rtvHandle, clearColor, 0, nullptr);
// Indicate that the back buffer will now be used to present.
m_commandList->ResourceBarrier(1, &CD3DX12_RESOURCE_BARRIER::Transition(m_renderTargets[m_frameIndex].Get(), D3D12_RESOURCE_STATE_RENDER_TARGET, D3D12_RESOURCE_STATE_PRESENT));
ThrowIfFailed(m_commandList->Close());
}
void D3D12HelloWindow::WaitForPreviousFrame()
{
// WAITING FOR THE FRAME TO COMPLETE BEFORE CONTINUING IS NOT BEST PRACTICE.
// This is code implemented as such for simplicity. The D3D12HelloFrameBuffering
// sample illustrates how to use fences for efficient resource usage and to
// maximize GPU utilization.
// Signal and increment the fence value.
const UINT64 fence = m_fenceValue;
ThrowIfFailed(m_commandQueue->Signal(m_fence.Get(), fence));
m_fenceValue++;
// Wait until the previous frame is finished.
if (m_fence->GetCompletedValue() < fence)
{
ThrowIfFailed(m_fence->SetEventOnCompletion(fence, m_fenceEvent));
WaitForSingleObject(m_fenceEvent, INFINITE);
}
m_frameIndex = m_swapChain->GetCurrentBackBufferIndex();
}
0 件のコメント:
コメントを投稿