OpenEnroth_PreHistory/DirectX11.cpp at master · OpenEnroth/OpenEnroth_PreHistory · GitHub

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/*#define _CRTDBG_MAP_ALLOC
#include <stdlib.h>
#include <crtdbg.h>

#define _CRT_SECURE_NO_WARNINGS
#define WIN32_LEAN_AND_MEAN

#include "DirectX11.h"
#include "RenderStruct.h"

HRESULT D3D11::InitDevice()
{
  HRESULT hr = S_OK;
  RECT rc;
  GetClientRect( g_hWnd, &rc );
  UINT width = rc.right - rc.left;           // ïîëó÷àåì øèðèíó
  UINT height = rc.bottom - rc.top;          // è âûñîòó îêíà
  UINT createDeviceFlags = 0;
  D3D_DRIVER_TYPE driverTypes[] =
  {
    D3D_DRIVER_TYPE_HARDWARE,
    D3D_DRIVER_TYPE_WARP,
    D3D_DRIVER_TYPE_REFERENCE,
  };
  UINT numDriverTypes = ARRAYSIZE( driverTypes );

 // Òóò ìû ñîçäàåì ñïèñîê ïîääåðæèâàåìûõ âåðñèé DirectX
  D3D_FEATURE_LEVEL featureLevels[] =
  {
    D3D_FEATURE_LEVEL_11_0,
    D3D_FEATURE_LEVEL_10_1,
    D3D_FEATURE_LEVEL_10_0,
  };
  UINT numFeatureLevels = ARRAYSIZE( featureLevels );

  // Ñåé÷àñ ìû ñîçäàäèì óñòðîéñòâà DirectX. Äëÿ íà÷àëà çàïîëíèì ñòðóêòóðó,
  // êîòîðàÿ îïèñûâàåò ñâîéñòâà ïåðåäíåãî áóôåðà è ïðèâÿçûâàåò åãî ê íàøåìó îêíó.
  DXGI_SWAP_CHAIN_DESC sd;            // Ñòðóêòóðà, îïèñûâàþùàÿ öåïü ñâÿçè (Swap Chain)
  ZeroMemory( &sd, sizeof( sd ) );    // î÷èùàåì åå
  sd.BufferCount = 1;                               // ó íàñ îäèí çàäíèé áóôåð
  sd.BufferDesc.Width = width;                     // øèðèíà áóôåðà
  sd.BufferDesc.Height = height;                          // âûñîòà áóôåðà
  sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;      // ôîðìàò ïèêñåëÿ â áóôåðå
  sd.BufferDesc.RefreshRate.Numerator = 75;         // ÷àñòîòà îáíîâëåíèÿ ýêðàíà
  sd.BufferDesc.RefreshRate.Denominator = 1;
  sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT; // íàçíà÷åíèå áóôåðà - çàäíèé áóôåð
  sd.OutputWindow = g_hWnd;                               // ïðèâÿçûâàåì ê íàøåìó îêíó
  sd.SampleDesc.Count = 1;
  sd.SampleDesc.Quality = 0;
  sd.Windowed = TRUE;                               // íå ïîëíîýêðàííûé ðåæèì

  for( UINT driverTypeIndex = 0; driverTypeIndex < numDriverTypes; driverTypeIndex++ )
  {
    g_driverType = driverTypes[driverTypeIndex];
    hr = D3D11CreateDeviceAndSwapChain ( NULL, g_driverType, NULL, createDeviceFlags, featureLevels, numFeatureLevels, D3D11_SDK_VERSION, &sd, &g_pSwapChain, &g_pd3dDevice, &g_featureLevel, &g_pImmediateContext );
    if (SUCCEEDED(hr)) // Åñëè óñòðîéñòâà ñîçäàíû óñïåøíî, òî âûõîäèì èç öèêëà
      break;
  }
  if (FAILED(hr)) return hr;

  // Òåïåðü ñîçäàåì çàäíèé áóôåð. Îáðàòèòå âíèìàíèå, â SDK
  // RenderTargetOutput - ýòî ïåðåäíèé áóôåð, à RenderTargetView - çàäíèé.
  pBackBuffer = NULL;
  hr = g_pSwapChain->GetBuffer( 0, __uuidof(ID3D11Texture2D), (LPVOID*)&pBackBuffer );
  if (FAILED(hr)) return hr;

  // èíòåðôåéñ g_pd3dDevice áóäåò èñïîëüçîâàòüñÿ äëÿ ñîçäàíèÿ îñòàëüíûõ îáúåêòîâ
  hr = g_pd3dDevice->CreateRenderTargetView( pBackBuffer, NULL, &g_pRenderTargetView );
  pBackBuffer->Release();
  if (FAILED(hr)) return hr;

  // Ïîäêëþ÷àåì îáúåêò çàäíåãî áóôåðà ê êîíòåêñòó óñòðîéñòâà
  g_pImmediateContext->OMSetRenderTargets( 1, &g_pRenderTargetView, NULL );

  // Íàñòðîéêà âüþïîðòà
  D3D11_VIEWPORT vp;
  vp.Width = (FLOAT)width;
  vp.Height = (FLOAT)height;
  vp.MinDepth = 0.0f;
  vp.MaxDepth = 1.0f;
  vp.TopLeftX = 0;
  vp.TopLeftY = 0;

  // Ïîäêëþ÷àåì âüþïîðò ê êîíòåêñòó óñòðîéñòâà
  g_pImmediateContext->RSSetViewports (1, &vp);

  return S_OK;
}

//--------------------------------------------------------------------------------------
// Óäàëèòü âñå ñîçäàííûå îáúåêòû
//--------------------------------------------------------------------------------------
void D3D11::CleanupDevice()
{
  // Ñíà÷àëà îòêëþ÷èì êîíòåêñò óñòðîéñòâà, ïîòîì îòïóñòèì îáúåêòû.
  if( g_pImmediateContext ) g_pImmediateContext->ClearState();

  //  óäàëåÿì îáúåêòû â ïîðÿäêå, îáðàòíîì òîìó, â êîòîðîì ñîçäàâàëè.
  if( g_pRenderTargetView ) g_pRenderTargetView->Release();

  if( g_pSwapChain ) g_pSwapChain->Release();

  if( g_pImmediateContext ) g_pImmediateContext->Release();

  if( g_pd3dDevice ) g_pd3dDevice->Release();
}

void Render()
{

}*/