r_render.cc - master - astro_ramirez/astro_engine

r_render.cc
61 строка2 KB
astro_ramirez
бновлён движок
19 ноя 2024, 16:20
19 ноя 2024, 16:2049c627d
#include "r_render.h"

HRESULT Render::InitDirectX(HWND hWnd)
{
    DXGI_SWAP_CHAIN_DESC1 sd;
    ZeroMemory(&sd, sizeof(sd));
    sd.Width = W;
    sd.Height = H;
    sd.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
    sd.SampleDesc.Count = 1;
    sd.SampleDesc.Quality = 0;
    sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
    sd.BufferCount = 1;
    sd.Scaling = DXGI_SCALING_NONE;
    sd.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
    sd.Flags = 0;

    UINT createDeviceFlags = 0;
    D3D_FEATURE_LEVEL featureLevels[] = {D3D_FEATURE_LEVEL_11_1, D3D_FEATURE_LEVEL_11_0};
    HRESULT hr = D3D11CreateDeviceAndSwapChain(
        nullptr,
        D3D_DRIVER_TYPE_HARDWARE,
        nullptr,
        createDeviceFlags,
        featureLevels,
        ARRAYSIZE(featureLevels),
        D3D11_SDK_VERSION,
        &sd,
        &Render::SwapChain,
        &Render::Device,
        nullptr,
        &Render::ImmediateContext
    );

    if(SUCCEEDED(hr))
    {
        ID3D11Texture2D* BackBuffer;
        hr = Render::SwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), (LPVOID*)&BackBuffer);
        if(SUCCEEDED(hr))
        {
            hr = Render::Device->CreateRenderTargetView(BackBuffer, nullptr, &Render::RenderTargetView);
            BackBuffer->Release();
        }
    }
    return hr;
}

void Render::CleanDirectX(void)
{
    if(Render::RenderTargetView) Render::RenderTargetView->Release();
    if(Render::ImmediateContext) Render::ImmediateContext->Release();
    if(Render::Device)           Render::Device->Release();
    if(Render::SwapChain)        Render::SwapChain->Release();
}

void Render::Render(void)
{
    Render::ImmediateContext->OMSetRenderTargets(1, &Render::RenderTargetView, nullptr);
    Render::ImmediateContext->ClearRenderTargetView(Render::RenderTargetView, D3DCOLOR_XRGB(0, 0, 255));
    Render::SwapChain->Present(1, 0);
}