50 lines
1.7 KiB
C++
50 lines
1.7 KiB
C++
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#include "helpers.h"
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#include <d3d9.h>
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#include "imgui.h"
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#include "imgui_impl_dx9.h"
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// Data
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static LPDIRECT3D9 g_pD3D = nullptr;
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static LPDIRECT3DDEVICE9 g_pd3dDevice = nullptr;
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static UINT g_ResizeWidth = 0, g_ResizeHeight = 0;
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static D3DPRESENT_PARAMETERS g_d3dpp = {};
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// TODO Figure out if I can move these DirectX helpers into here.
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// If I define _TEST2 into directx9_test.cpp it'll switch everything to using this file
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// It crashes because g_d3dpp is a nullptr though
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bool Helpers::CreateDeviceD3D(HWND hWnd)
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{
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if ((g_pD3D = Direct3DCreate9(D3D_SDK_VERSION)) == nullptr)
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return false;
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// Create the D3DDevice
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ZeroMemory(&g_d3dpp, sizeof(g_d3dpp));
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g_d3dpp.Windowed = TRUE;
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g_d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
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g_d3dpp.BackBufferFormat = D3DFMT_UNKNOWN; // Need to use an explicit format with alpha if needing per-pixel alpha composition.
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g_d3dpp.EnableAutoDepthStencil = TRUE;
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g_d3dpp.AutoDepthStencilFormat = D3DFMT_D16;
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g_d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_ONE; // Present with vsync
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//g_d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE; // Present without vsync, maximum unthrottled framerate
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if (g_pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, D3DCREATE_HARDWARE_VERTEXPROCESSING, &g_d3dpp, &g_pd3dDevice) < 0)
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return false;
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return true;
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}
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void Helpers::CleanupDeviceD3D()
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{
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if (g_pd3dDevice) { g_pd3dDevice->Release(); g_pd3dDevice = nullptr; }
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if (g_pD3D) { g_pD3D->Release(); g_pD3D = nullptr; }
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}
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void Helpers::ResetDevice()
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{
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ImGui_ImplDX9_InvalidateDeviceObjects();
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HRESULT hr = g_pd3dDevice->Reset(&g_d3dpp);
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if (hr == D3DERR_INVALIDCALL)
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IM_ASSERT(0);
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ImGui_ImplDX9_CreateDeviceObjects();
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}
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