如何在DirectX中檢索紋理信息？

Question

如何檢索已在DirectX中創建的紋理的紋理寬度，高度，mipmap級別的數量？它的API是什麼？

Answer 1

使用ID3D10Texture2D::GetDesc，假設pTexture是一個有效的指針ID3D10Texture2D，然後

D3D10_TEXTURE2D_DESC texDesc; 
pTexture->GetDesc(&texDesc); 

這裏是你可以從texDesc

typedef struct D3D10_TEXTURE2D_DESC { 
    UINT    Width; 
    UINT    Height; 
    UINT    MipLevels; 
    UINT    ArraySize; 
    DXGI_FORMAT  Format; 
    DXGI_SAMPLE_DESC SampleDesc; 
    D3D10_USAGE  Usage; 
    UINT    BindFlags; 
    UINT    CPUAccessFlags; 
    UINT    MiscFlags; 
} D3D10_TEXTURE2D_DESC;