Acceleration and support provided by VideoHWVF
The VideoHWVF module 0.47 provides hardware acceleration using the features of an AGP graphics card, accessed through the ViewFinder podule. The acceleration provided is described below. It covers the vast majority of common operations which are used by applications. The operations are broken down into the core components for the abstracted video system.
All features which are not supported by the hardware driver will be deferred to the software driver which will use direct screen access to provide the required operation, or update its internal state.
Text (VDU4-style text output)
VideoV_Text_ChangeDestination : Supported VideoV_Text_DefineChar : Supported VideoV_Text_SetTextColour : Supported VideoV_Text_WriteTextChar : Accelerated VideoV_Text_TextCursor : Accelerated VideoV_Text_ClearBox : Accelerated
VDU graphics operations
VideoV_Graf_SetColour1 : Accelerated  VideoV_Graf_SetColour2 : Accelerated  VideoV_Graf_ChangeDestination : Supported VideoV_Graf_ChangeBase : Supported VideoV_Graf_ReadPrimitives : Supported VideoV_Graf_Rectangle : Accelerated VideoV_Graf_Triangle : Accelerated  VideoV_Graf_Parallelogram : Accelerated  VideoV_Graf_BlockCopy : Accelerated VideoV_Graf_CircleOutline : Accelerated  VideoV_Graf_CircleFill : Accelerated  VideoV_Graf_CircleArc : Accelerated  VideoV_Graf_CircleSegment : Accelerated  VideoV_Graf_CircleSector : Accelerated  VideoV_Graf_EllipseOutline : Accelerated  VideoV_Graf_EllipseFill : Accelerated  VideoV_Graf_FillRight : Not supported VideoV_Graf_FillLeftAndRight : Not supported VideoV_Graf_FillFlood : Not supported VideoV_Graf_PolyHLine : Accelerated
HLine : Accelerated VLine : Accelerated Point : Accelerated
Mouse pointer operations
VideoV_Pointer_Define : Supported VideoV_Pointer_Select : Supported VideoV_Pointer_Update : Supported VideoV_Pointer_Remove : Supported VideoV_Pointer_SetPalette : Supported 
Mode / screen operations
VideoV_Mode_VetMode : Supported VideoV_Mode_SetMode : Supported VideoV_Mode_Scroll : Accelerated VideoV_Mode_SetPalette : Supported VideoV_Mode_Enable : Supported VideoV_Mode_Disable : Supported VideoV_Mode_PowerSave : Supported VideoV_Mode_SetRGBTable : Supported VideoV_Mode_AccelConfigure : Supported  VideoV_Mode_AccelControl : Supported  VideoV_Mode_DisplaySelect : Supported VideoV_Mode_BankCount : Supported VideoV_Mode_BankDisplay : Supported VideoV_Mode_BankDriver : Supported VideoV_Mode_BankCopy : Accelerated
Mode change fade : Supported VSync IRQ provision : Supported Monitor EDID acquisition : Supported
1. Multi-operation ECF's cannot be supported.
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HTML document version 1.02 27th April 2007