GPE Class

The GPE class servers as the base from which concrete drivers can be derived. A GPE object represents a single display device.

Drivers based upon GPE must implement the following methods

    // Configuration methods
    virtual SCODE    GetModeInfo(
                GPEMode *pMode,
                int modeNo )=0;
    virtual int    NumModes()=0;
    virtual SCODE    SetMode(
int modeId )=0;
    // Blt methods
    virtual SCODE    BltPrepare(
GPEBltParms *pBltParms )=0;
    virtual SCODE    BltComplete(
GPEBltParms *pBltParms )=0;
    // Line Method
    virtual SCODE    Line(
                GPELineParms *pLineParms,
                EGPEPhase phase = gpeSingle )=0;
    // Surface creation Method
    virtual SCODE    AllocSurface(
                GPESurf **ppSurf,
                int width,
                int height,
                EGPEFormat format,
                int surfaceFlags )=0;
    // Cursor methods
    virtual SCODE    SetPointerShape(
                GPESurf *pMask,
                GPESurf *pColorSurf,
                int xHot,
                int yHot,
                int cx,
                int cy )=0;
    virtual SCODE    MovePointer(
                int x,
                int y )=0;
    // Palette methods
    virtual SCODE    SetPalette(
                RGBQUAD *src,
                unsigned short firstEntry,
                unsigned short numEntries )=0;
    virtual SCODE    SetPalette(
                PALETTEENTRY *src,
                unsigned short firstEntry,
                unsigned short numEntries )=0;
    // Timing method
    virtual int    InVBlank()=0;