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assimp/samples/SimpleTexturedDirectx11/SimpleTexturedDirectx11/main.cpp

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// ---------------------------------------------------------------------------
// Simple Assimp Directx11 Sample
// This is a very basic sample and only reads diffuse texture
// but this can load both embedded textures in fbx and non-embedded textures
//
//
// Replace ourModel->Load(hwnd, dev, devcon, "Models/myModel.fbx") this with your
// model name (line 480)
// If your model isn't a fbx with embedded textures make sure your model's
// textures are in same directory as your model
//
//
// Written by IAS. :)
// ---------------------------------------------------------------------------
#include <Windows.h>
#include <shellapi.h>
#include <stdexcept>
#include <windowsx.h>
#include <d3d11_1.h>
#include <dxgi1_2.h>
#include <DirectXMath.h>
#include <d3dcompiler.h>
#include "ModelLoader.h"
#include "UTFConverter.h"
#include "SafeRelease.hpp"
#ifdef _MSC_VER
#pragma comment (lib, "d3d11.lib")
#pragma comment (lib, "Dxgi.lib")
#pragma comment(lib,"d3dcompiler.lib")
#pragma comment (lib, "dxguid.lib")
#endif // _MSC_VER
using namespace DirectX;
using namespace AssimpSamples::SharedCode;
#define VERTEX_SHADER_FILE L"VertexShader.hlsl"
#define PIXEL_SHADER_FILE L"PixelShader.hlsl"
// ------------------------------------------------------------
// Structs
// ------------------------------------------------------------
struct ConstantBuffer {
XMMATRIX mWorld;
XMMATRIX mView;
XMMATRIX mProjection;
};
// ------------------------------------------------------------
// Window Variables
// ------------------------------------------------------------
#define SCREEN_WIDTH 800
#define SCREEN_HEIGHT 600
const char g_szClassName[] = "directxWindowClass";
static std::string g_ModelPath;
UINT width, height;
HWND g_hwnd = nullptr;
// ------------------------------------------------------------
// DirectX Variables
// ------------------------------------------------------------
D3D_DRIVER_TYPE g_driverType = D3D_DRIVER_TYPE_NULL;
D3D_FEATURE_LEVEL g_featureLevel = D3D_FEATURE_LEVEL_11_0;
ID3D11Device *dev = nullptr;
ID3D11Device1 *dev1 = nullptr;
ID3D11DeviceContext *devcon = nullptr;
ID3D11DeviceContext1 *devcon1 = nullptr;
IDXGISwapChain *swapchain = nullptr;
IDXGISwapChain1 *swapchain1 = nullptr;
ID3D11RenderTargetView *backbuffer = nullptr;
ID3D11VertexShader *pVS = nullptr;
ID3D11PixelShader *pPS = nullptr;
ID3D11InputLayout *pLayout = nullptr;
ID3D11Buffer *pConstantBuffer = nullptr;
ID3D11Texture2D *g_pDepthStencil = nullptr;
ID3D11DepthStencilView *g_pDepthStencilView = nullptr;
ID3D11SamplerState *TexSamplerState = nullptr;
ID3D11RasterizerState *rasterstate = nullptr;
ID3D11Debug* d3d11debug = nullptr;
XMMATRIX m_World;
XMMATRIX m_View;
XMMATRIX m_Projection;
// ------------------------------------------------------------
// Function identifiers
// ------------------------------------------------------------
void InitD3D(HINSTANCE hinstance, HWND hWnd);
void CleanD3D(void);
void RenderFrame(void);
void InitPipeline();
void InitGraphics();
HRESULT CompileShaderFromFile(LPCWSTR pFileName, const D3D_SHADER_MACRO* pDefines, LPCSTR pEntryPoint, LPCSTR pShaderModel, ID3DBlob** ppBytecodeBlob);
void Throwanerror(LPCSTR errormessage);
// ------------------------------------------------------------
// Our Model
// ------------------------------------------------------------
ModelLoader *ourModel = nullptr;
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch (msg)
{
case WM_CLOSE:
DestroyWindow(hwnd);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hwnd, msg, wParam, lParam);
}
return 0;
}
int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE /*hPrevInstance*/,
LPWSTR /*lpCmdLine*/, int nCmdShow)
{
int argc;
LPWSTR* argv = CommandLineToArgvW(GetCommandLineW(), &argc);
if (!argv) {
MessageBox(nullptr,
TEXT("An error occured while reading command line arguments."),
TEXT("Error!"),
MB_ICONERROR | MB_OK);
return EXIT_FAILURE;
}
// Free memory allocated from CommandLineToArgvW.
auto free_command_line_allocated_memory = [&argv]() {
if (argv) {
LocalFree(argv);
argv = nullptr;
}
};
// Ensure that a model file has been specified.
if (argc < 2) {
MessageBox(nullptr,
TEXT("No model file specified. The program will now close."),
TEXT("Error!"),
MB_ICONERROR | MB_OK);
free_command_line_allocated_memory();
return EXIT_FAILURE;
}
// Retrieve the model file path.
g_ModelPath = UTFConverter(argv[1]).str();
free_command_line_allocated_memory();
WNDCLASSEX wc;
MSG msg;
wc.cbSize = sizeof(WNDCLASSEX);
wc.style = 0;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(nullptr, IDI_APPLICATION);
wc.hCursor = LoadCursor(nullptr, IDC_ARROW);
wc.hbrBackground = nullptr;
wc.lpszMenuName = nullptr;
wc.lpszClassName = g_szClassName;
wc.hIconSm = LoadIcon(nullptr, IDI_APPLICATION);
if (!RegisterClassEx(&wc))
{
MessageBox(nullptr, "Window Registration Failed!", "Error!",
MB_ICONEXCLAMATION | MB_OK);
return 0;
}
RECT wr = { 0,0, SCREEN_WIDTH, SCREEN_HEIGHT };
AdjustWindowRect(&wr, WS_OVERLAPPEDWINDOW, FALSE);
g_hwnd = CreateWindowEx(
WS_EX_CLIENTEDGE,
g_szClassName,
" Simple Textured Directx11 Sample ",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT, wr.right - wr.left, wr.bottom - wr.top,
nullptr, nullptr, hInstance, nullptr
);
if (g_hwnd == nullptr)
{
MessageBox(nullptr, "Window Creation Failed!", "Error!",
MB_ICONEXCLAMATION | MB_OK);
return 0;
}
ShowWindow(g_hwnd, nCmdShow);
UpdateWindow(g_hwnd);
width = wr.right - wr.left;
height = wr.bottom - wr.top;
try {
InitD3D(hInstance, g_hwnd);
while (true)
{
if (PeekMessage(&msg, nullptr, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
if (msg.message == WM_QUIT)
break;
}
RenderFrame();
}
CleanD3D();
return static_cast<int>(msg.wParam);
} catch (const std::exception& e) {
MessageBox(g_hwnd, e.what(), TEXT("Error!"), MB_ICONERROR | MB_OK);
CleanD3D();
return EXIT_FAILURE;
} catch (...) {
MessageBox(g_hwnd, TEXT("Caught an unknown exception."), TEXT("Error!"), MB_ICONERROR | MB_OK);
CleanD3D();
return EXIT_FAILURE;
}
}
void InitD3D(HINSTANCE /*hinstance*/, HWND hWnd)
{
HRESULT hr;
UINT createDeviceFlags = 0;
#ifdef _DEBUG
createDeviceFlags |= D3D11_CREATE_DEVICE_DEBUG;
#endif
D3D_DRIVER_TYPE driverTypes[] =
{
D3D_DRIVER_TYPE_HARDWARE,
D3D_DRIVER_TYPE_WARP,
D3D_DRIVER_TYPE_REFERENCE,
};
UINT numDriverTypes = ARRAYSIZE(driverTypes);
D3D_FEATURE_LEVEL featureLevels[] =
{
D3D_FEATURE_LEVEL_11_1,
D3D_FEATURE_LEVEL_11_0,
D3D_FEATURE_LEVEL_10_1,
D3D_FEATURE_LEVEL_10_0,
};
UINT numFeatureLevels = ARRAYSIZE(featureLevels);
for (UINT driverTypeIndex = 0; driverTypeIndex < numDriverTypes; driverTypeIndex++)
{
g_driverType = driverTypes[driverTypeIndex];
hr = D3D11CreateDevice(nullptr, g_driverType, nullptr, createDeviceFlags, featureLevels, numFeatureLevels,
D3D11_SDK_VERSION, &dev, &g_featureLevel, &devcon);
if (hr == E_INVALIDARG)
{
// DirectX 11.0 platforms will not recognize D3D_FEATURE_LEVEL_11_1 so we need to retry without it
hr = D3D11CreateDevice(nullptr, g_driverType, nullptr, createDeviceFlags, &featureLevels[1], numFeatureLevels - 1,
D3D11_SDK_VERSION, &dev, &g_featureLevel, &devcon);
}
if (SUCCEEDED(hr))
break;
}
if (FAILED(hr))
Throwanerror("Directx Device Creation Failed!");
#if _DEBUG
hr = dev->QueryInterface(IID_PPV_ARGS(&d3d11debug));
if (FAILED(hr))
OutputDebugString(TEXT("Failed to retrieve DirectX 11 debug interface.\n"));
#endif
UINT m4xMsaaQuality;
dev->CheckMultisampleQualityLevels(
DXGI_FORMAT_R8G8B8A8_UNORM, 4, &m4xMsaaQuality);
// Obtain DXGI factory from device (since we used nullptr for pAdapter above)
IDXGIFactory1* dxgiFactory = nullptr;
{
IDXGIDevice* dxgiDevice = nullptr;
hr = dev->QueryInterface(__uuidof(IDXGIDevice), reinterpret_cast<void**>(&dxgiDevice));
if (SUCCEEDED(hr))
{
IDXGIAdapter* adapter = nullptr;
hr = dxgiDevice->GetAdapter(&adapter);
if (SUCCEEDED(hr))
{
hr = adapter->GetParent(__uuidof(IDXGIFactory1), reinterpret_cast<void**>(&dxgiFactory));
adapter->Release();
}
dxgiDevice->Release();
}
}
if (FAILED(hr))
Throwanerror("DXGI Factory couldn't be obtained!");
// Create swap chain
IDXGIFactory2* dxgiFactory2 = nullptr;
hr = dxgiFactory->QueryInterface(__uuidof(IDXGIFactory2), reinterpret_cast<void**>(&dxgiFactory2));
if (dxgiFactory2)
{
// DirectX 11.1 or later
hr = dev->QueryInterface(__uuidof(ID3D11Device1), reinterpret_cast<void**>(&dev1));
if (SUCCEEDED(hr))
{
(void)devcon->QueryInterface(__uuidof(ID3D11DeviceContext1), reinterpret_cast<void**>(&devcon1));
}
DXGI_SWAP_CHAIN_DESC1 sd;
ZeroMemory(&sd, sizeof(sd));
sd.Width = SCREEN_WIDTH;
sd.Height = SCREEN_HEIGHT;
sd.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
sd.SampleDesc.Count = 4;
sd.SampleDesc.Quality = m4xMsaaQuality - 1;
sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
sd.BufferCount = 1;
hr = dxgiFactory2->CreateSwapChainForHwnd(dev, hWnd, &sd, nullptr, nullptr, &swapchain1);
if (SUCCEEDED(hr))
{
hr = swapchain1->QueryInterface(__uuidof(IDXGISwapChain), reinterpret_cast<void**>(&swapchain));
}
dxgiFactory2->Release();
}
else
{
// DirectX 11.0 systems
DXGI_SWAP_CHAIN_DESC sd;
ZeroMemory(&sd, sizeof(sd));
sd.BufferCount = 1;
sd.BufferDesc.Width = SCREEN_WIDTH;
sd.BufferDesc.Height = SCREEN_HEIGHT;
sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
sd.BufferDesc.RefreshRate.Numerator = 60;
sd.BufferDesc.RefreshRate.Denominator = 1;
sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
sd.OutputWindow = hWnd;
sd.SampleDesc.Count = 1;
sd.SampleDesc.Quality = m4xMsaaQuality - 1;
sd.Windowed = TRUE;
hr = dxgiFactory->CreateSwapChain(dev, &sd, &swapchain);
}
// Note this tutorial doesn't handle full-screen swapchains so we block the ALT+ENTER shortcut
dxgiFactory->MakeWindowAssociation(g_hwnd, DXGI_MWA_NO_ALT_ENTER);
dxgiFactory->Release();
if (FAILED(hr))
Throwanerror("Swapchain Creation Failed!");
ID3D11Texture2D *pBackBuffer;
swapchain->GetBuffer(0, __uuidof(ID3D11Texture2D), (LPVOID*)&pBackBuffer);
dev->CreateRenderTargetView(pBackBuffer, nullptr, &backbuffer);
pBackBuffer->Release();
D3D11_TEXTURE2D_DESC descDepth;
ZeroMemory(&descDepth, sizeof(descDepth));
descDepth.Width = SCREEN_WIDTH;
descDepth.Height = SCREEN_HEIGHT;
descDepth.MipLevels = 1;
descDepth.ArraySize = 1;
descDepth.Format = DXGI_FORMAT_D24_UNORM_S8_UINT;
descDepth.SampleDesc.Count = 4;
descDepth.SampleDesc.Quality = m4xMsaaQuality - 1;
descDepth.Usage = D3D11_USAGE_DEFAULT;
descDepth.BindFlags = D3D11_BIND_DEPTH_STENCIL;
descDepth.CPUAccessFlags = 0;
descDepth.MiscFlags = 0;
hr = dev->CreateTexture2D(&descDepth, nullptr, &g_pDepthStencil);
if (FAILED(hr))
Throwanerror("Depth Stencil Texture couldn't be created!");
// Create the depth stencil view
D3D11_DEPTH_STENCIL_VIEW_DESC descDSV;
ZeroMemory(&descDSV, sizeof(descDSV));
descDSV.Format = descDepth.Format;
descDSV.ViewDimension = D3D11_DSV_DIMENSION_TEXTURE2D;
descDSV.Texture2D.MipSlice = 0;
hr = dev->CreateDepthStencilView(g_pDepthStencil, 0, &g_pDepthStencilView);
if (FAILED(hr))
{
Throwanerror("Depth Stencil View couldn't be created!");
}
devcon->OMSetRenderTargets(1, &backbuffer, g_pDepthStencilView);
D3D11_RASTERIZER_DESC rasterDesc;
rasterDesc.AntialiasedLineEnable = false;
rasterDesc.CullMode = D3D11_CULL_BACK;
rasterDesc.DepthBias = 0;
rasterDesc.DepthBiasClamp = 0.0f;
rasterDesc.DepthClipEnable = true;
rasterDesc.FillMode = D3D11_FILL_SOLID;
rasterDesc.FrontCounterClockwise = false;
rasterDesc.MultisampleEnable = false;
rasterDesc.ScissorEnable = false;
rasterDesc.SlopeScaledDepthBias = 0.0f;
dev->CreateRasterizerState(&rasterDesc, &rasterstate);
devcon->RSSetState(rasterstate);
D3D11_VIEWPORT viewport;
ZeroMemory(&viewport, sizeof(D3D11_VIEWPORT));
viewport.TopLeftX = 0;
viewport.TopLeftY = 0;
viewport.MinDepth = 0.0f;
viewport.MaxDepth = 1.0f;
viewport.Width = SCREEN_WIDTH;
viewport.Height = SCREEN_HEIGHT;
devcon->RSSetViewports(1, &viewport);
InitPipeline();
InitGraphics();
}
void CleanD3D(void)
{
if (swapchain)
swapchain->SetFullscreenState(FALSE, nullptr);
if (ourModel) {
ourModel->Close();
delete ourModel;
ourModel = nullptr;
}
SafeRelease(TexSamplerState);
SafeRelease(pConstantBuffer);
SafeRelease(pLayout);
SafeRelease(pVS);
SafeRelease(pPS);
SafeRelease(rasterstate);
SafeRelease(g_pDepthStencilView);
SafeRelease(g_pDepthStencil);
SafeRelease(backbuffer);
SafeRelease(swapchain);
SafeRelease(swapchain1);
SafeRelease(devcon1);
SafeRelease(dev1);
SafeRelease(devcon);
#if _DEBUG
if (d3d11debug) {
OutputDebugString(TEXT("Dumping DirectX 11 live objects.\n"));
d3d11debug->ReportLiveDeviceObjects(D3D11_RLDO_DETAIL);
SafeRelease(d3d11debug);
} else {
OutputDebugString(TEXT("Unable to dump live objects: no DirectX 11 debug interface available.\n"));
}
#endif
SafeRelease(dev);
}
void RenderFrame(void)
{
static float t = 0.0f;
static ULONGLONG timeStart = 0;
ULONGLONG timeCur = GetTickCount64();
if (timeStart == 0)
timeStart = timeCur;
t = (timeCur - timeStart) / 1000.0f;
float clearColor[4] = { 0.0f, 0.2f, 0.4f, 1.0f };
devcon->ClearRenderTargetView(backbuffer, clearColor);
devcon->ClearDepthStencilView(g_pDepthStencilView, D3D11_CLEAR_DEPTH | D3D11_CLEAR_STENCIL, 1.0f, 0);
devcon->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
m_World = XMMatrixRotationY(-t);
ConstantBuffer cb;
cb.mWorld = XMMatrixTranspose(m_World);
cb.mView = XMMatrixTranspose(m_View);
cb.mProjection = XMMatrixTranspose(m_Projection);
devcon->UpdateSubresource(pConstantBuffer, 0, nullptr, &cb, 0, 0);
devcon->VSSetShader(pVS, 0, 0);
devcon->VSSetConstantBuffers(0, 1, &pConstantBuffer);
devcon->PSSetShader(pPS, 0, 0);
devcon->PSSetSamplers(0, 1, &TexSamplerState);
ourModel->Draw(devcon);
swapchain->Present(0, 0);
}
void InitPipeline()
{
ID3DBlob *VS, *PS;
if(FAILED(CompileShaderFromFile(SHADER_PATH VERTEX_SHADER_FILE, 0, "main", "vs_4_0", &VS)))
Throwanerror(UTFConverter(L"Failed to compile shader from file " VERTEX_SHADER_FILE).c_str());
if(FAILED(CompileShaderFromFile(SHADER_PATH PIXEL_SHADER_FILE, 0, "main", "ps_4_0", &PS)))
Throwanerror(UTFConverter(L"Failed to compile shader from file " PIXEL_SHADER_FILE).c_str());
dev->CreateVertexShader(VS->GetBufferPointer(), VS->GetBufferSize(), nullptr, &pVS);
dev->CreatePixelShader(PS->GetBufferPointer(), PS->GetBufferSize(), nullptr, &pPS);
D3D11_INPUT_ELEMENT_DESC ied[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, D3D11_APPEND_ALIGNED_ELEMENT, D3D11_INPUT_PER_VERTEX_DATA, 0 }
};
dev->CreateInputLayout(ied, 2, VS->GetBufferPointer(), VS->GetBufferSize(), &pLayout);
devcon->IASetInputLayout(pLayout);
}
void InitGraphics()
{
HRESULT hr;
m_Projection = XMMatrixPerspectiveFovLH(XM_PIDIV4, SCREEN_WIDTH / (float)SCREEN_HEIGHT, 0.01f, 1000.0f);
D3D11_BUFFER_DESC bd;
ZeroMemory(&bd, sizeof(bd));
bd.Usage = D3D11_USAGE_DEFAULT;
bd.ByteWidth = sizeof(ConstantBuffer);
bd.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
bd.CPUAccessFlags = 0;
hr = dev->CreateBuffer(&bd, nullptr, &pConstantBuffer);
if (FAILED(hr))
Throwanerror("Constant buffer couldn't be created");
D3D11_SAMPLER_DESC sampDesc;
ZeroMemory(&sampDesc, sizeof(sampDesc));
sampDesc.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR;
sampDesc.AddressU = D3D11_TEXTURE_ADDRESS_WRAP;
sampDesc.AddressV = D3D11_TEXTURE_ADDRESS_WRAP;
sampDesc.AddressW = D3D11_TEXTURE_ADDRESS_WRAP;
sampDesc.ComparisonFunc = D3D11_COMPARISON_NEVER;
sampDesc.MinLOD = 0;
sampDesc.MaxLOD = D3D11_FLOAT32_MAX;
hr = dev->CreateSamplerState(&sampDesc, &TexSamplerState);
if (FAILED(hr))
Throwanerror("Texture sampler state couldn't be created");
XMVECTOR Eye = XMVectorSet(0.0f, 5.0f, -300.0f, 0.0f);
XMVECTOR At = XMVectorSet(0.0f, 100.0f, 0.0f, 0.0f);
XMVECTOR Up = XMVectorSet(0.0f, 1.0f, 0.0f, 0.0f);
m_View = XMMatrixLookAtLH(Eye, At, Up);
ourModel = new ModelLoader;
if (!ourModel->Load(g_hwnd, dev, devcon, g_ModelPath))
Throwanerror("Model couldn't be loaded");
}
HRESULT CompileShaderFromFile(LPCWSTR pFileName, const D3D_SHADER_MACRO* pDefines, LPCSTR pEntryPoint, LPCSTR pShaderModel, ID3DBlob** ppBytecodeBlob)
{
UINT compileFlags = D3DCOMPILE_ENABLE_STRICTNESS | D3DCOMPILE_PACK_MATRIX_COLUMN_MAJOR;
#ifdef _DEBUG
compileFlags |= D3DCOMPILE_DEBUG;
#endif
ID3DBlob* pErrorBlob = nullptr;
HRESULT result = D3DCompileFromFile(pFileName, pDefines, D3D_COMPILE_STANDARD_FILE_INCLUDE, pEntryPoint, pShaderModel, compileFlags, 0, ppBytecodeBlob, &pErrorBlob);
if (FAILED(result))
{
if (pErrorBlob != nullptr)
OutputDebugStringA((LPCSTR)pErrorBlob->GetBufferPointer());
}
if (pErrorBlob != nullptr)
pErrorBlob->Release();
return result;
}
void Throwanerror(LPCSTR errormessage)
{
throw std::runtime_error(errormessage);
}
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