DXGL Features

API

ddraw.dll functions

Function	Implemented	Notes
DirectDrawCreate	Partial	Only supports primary display
DirectDrawCreateEx	Partial	Same as DirectDrawCreate
DirectDrawCreateClipper	Yes
DirectDrawEnumerateA	Partial
DirectDrawEnumerateW	Partial
DirectDrawEnumerateExA	Partial
DirectDrawEnumerateExW	Partial	Supports other DirectDrawEnumerate functions Only returns Primary Display Driver
DllCanUnloadNow	No	Returns S_FALSE
DllGetClassObject	Partial	Class Factory not yet written

IClassFactory functions

Function	Implemented	Notes
AddRef	Yes
CreateInstance	Yes
LockServer	Yes
QueryInterface	Yes
Release	Yes

IDirectDraw7 functions

Function	Implemented	Notes
Compact	N/A	Not implemented in `real` DirectDraw.
CreteClipper	Yes
CreatePalette	Partial	Currently only creates 256-color palettes
CreateSurface	Partial	See other tables
DuplicateSurface	No
EnumDisplayModes	Yes	Enhanced with extra modes and color depths
EnumSurfaces	No
EvaluateMode	No
FlipToGDISurface	Broken	Currently crashes program
GetAvailableVidMem	No
GetCaps	Yes	See caps tables
GetDeviceIdentifier	Partial	Creates `dummy` identifier
GetDisplayMode	Yes
GetFourCCCodes	No
GetGDISurface	No
GetMonitorFrequency	Partial	Only supports primary display
GetScanLine	No
GetSurfaceFromDC	No
GetVerticalBlankStatus	No
Initialize	Yes
RestoreAllSurfaces	No
RestoreDisplayMode	Broken	Has no effect under certain circumstances
SetCooperativeLevel	Partial	Does not support null HWND
SetDisplayMode	Yes	Enhanced with extra modes and color depths
StartModeTest	No
TestCooperativeLevel	No
WaitForVerticalBlank	Partial	Timing not correct

IDirectDrawClipper functions

Function	Implemented	Notes
GetClipList	No
GetHWnd	Yes
Initialize	Yes
IsClipListChanged	No
SetClipList	No
SetHWnd	Yes

IDirectDrawColorControl functions

Not yet implemented

IDirectDrawGammaControl functions

Not yet implemented

IDirectDrawPalette functions

Function	Implemented	Notes
GetCaps	Yes
GetEntries	Yes
Initialize	Yes	Always returns DDERR_ALREADYINITIALIZED
SetEntries	Yes

IDirectDrawSurface functions

Function	Implemented	Notes
AddAttachedSurface	Partial	Can only attach one Z buffer.
AddOverlayDirtyRect	No
Blt	Partial	Does not support DDBLTFX
BltBatch	No	Unimplemented in Microsoft DDraw
BltFast	Yes	Wrapper for Blt function
ChangeUniquenessValue	No
DeleteAttachedSurface	Partial	Can only attach one Z buffer.
EnumAttachedSurfaces	No
EnumOverlayZOrders	No
Flip	Partial	No vsync support
FreePrivateData	No
GetAttachedSurface	Partial	Gets backbuffer or zbuffer only.
GetBltStatus	No
GetCaps	Yes
GetClipper	No
GetColorKey	Yes
GetDC	Partial	Currently slow
GetDDInterface	No
GetFlipStatus	No
GetLOD	No
GetOverlayPosition	No
GetPalette	Yes
GetPixelFormat	Yes
GetPriority	No
GetPrivateData	No
GetSurfaceDesc	Yes
GetUniquenessValue	No
Initialize	Yes	Always returns DDERR_ALREADYINITIALIZED
IsLost	No
Lock	Partial	Does not support rects
PageLock	Yes	Only increments an internal counter
PageUnlock	Yes	Only decrements an internal counter
ReleaseDC	No	Currently inefficient
Restore	Partial	Fails if surface is lost
SetClipper	Partial	Currently has no effect
SetColorKey	Yes
SetLOD	No
SetOverlayPosition	No
SetPalette	Yes
SetPriority	No
SetPrivateData	No
SetSurfaceDesc	No
Unlock	No	Does not support rects
UpdateOverlay	No
UpdateOverlayDisplay	No	Not implemented in Microsoft DDraw
UpdateOverlayZOrder	No

IDDVideoPortContainer functions

Not yet implemented

IDirectDrawVideoPort functions

Not yet implemented

IDirect3D functions

Function	Implemented	Notes
CreateDevice	Yes
CreateVertexBuffer	No
EnumDevices	No
EnumZBufferFormats	Partial	Formats not yet validated
EvictManagedTextures	No

IDirect3DDevice functions

Function	Implemented	Notes
ApplyStateBlock	No
BeginScene	No
BeginStateBlock	No
CaptureStateBlock	No
CreateStateBlock	No
Clear	No
ComputeSphereVisibility	No
DeleteStateBlock	No
DrawIndexedPrimitive	No
DrawIndexedPrimitiveStrided	No
DrawIndexedPrimitiveVB	No
DrawPrimitive	No
DrawPrimitiveStrided	No
DrawPrimitiveVB	No
EndScene	No
EndStateBlock	No
EnumTextureFormats	No
GetCaps	No
GetClipPlane	No
GetClipStatus	No
GetDirect3D	Yes
GetInfo	No
GetLight	No
GetLightEnable	No
GetMaterial	Yes
GetRenderState	Yes
GetRenderTarget	No
GetStateData	No	Not in system D3D
GetTexture	No
GetTexureStageState	No
GetTransform	No
GetViewport	Yes
LightEnable	No
Load	No
MultiplyTransform	No
PreLoad	No
SetClipPlane	No
SetClipStatus	No
SetLight	No
SetMaterial	Yes
SetRenderState	Partial	Only supports some states.
SetRenderTarget	No
SetStateData	No	Not in system D3D
SetTexture	No
SetTextureStageState	No
SetTransform	No
SetViewport	Partial	Doesn't validate parameters
ValidateDevice	No

IDirect3DExecuteBuffer functions

Not yet implemented

IDirect3DLight functions

Not yet implemented

IDirect3DMaterial functions

Not yet implemented

IDirect3DTexture functions

Not yet implemented

IDirect3DVertexBuffer functions

Not yet implemented

IDirect3DViewport functions

Not yet implemented

Capabilites

DDCAPS

Member	Implemented	Notes
dwSize	Yes
dwCaps	Partial
dwCaps2	Partial
dwCKeyCaps	Partial
dwFXCaps	Partial
dwFXAlphaCaps	No
dwPalCaps	Partial
dwSVCaps	No
dwAlphaBltConstBitDepths	No
dwAlphaBltPixelBitDepths	No
dwAlphaBltSurfaceBitDepths	No
dwAlphaOverlayConstBitDepths	No
dwAlphaOverlayPixelBitDepths	No
dwAlphaOverlaySurfaceBitDepths	No
dwZBufferBitDepths	No
dwVidMemTotal	No
dwVidMemTotal	No
dwMaxVisibleOverlays	0
dwCurrVisibleOverlays	No
dwNumFourCCCodes	0
dwAlignBoundarySrc	No
dwAlignSizeSrc	No
dwAlignBoundaryDest	No
dwAlignSizeDest	No
dwAlignStrideAlign	No
dwRops[DD_ROP_SPACE]	No
ddsOldCaps	Partial
dwMinOverlayStretch	No
dwMaxOverlayStretch	No
dwMinLiveVideoStretch	No
dwMaxLiveVideoStretch	No
dwMinHwCodecStretch	No
dwMaxHwCodecStretch	No
dwReserved1	N/A	placeholder
dwReserved2	N/A	placeholder
dwReserved3	N/A	placeholder
dwSVBCaps	No
dwSVBCKeyCaps	No
dwSVBFXCaps	No
dwSVBRops[DD_ROP_SPACE]	No
dwVSBCaps	No
dwVSBCKeyCaps	No
dwVSBFXCaps	No
dwVSBRops[DD_ROP_SPACE]	No
dwSSBCaps	No
dwSSBCKeyCaps	No
dwSSBFXCaps	No
dwSSBRops[DD_ROP_SPACE]	No
dwMaxVideoPorts	0
dwCurrVideoPorts	0
dwSVBCaps2	No
dwNLVBCaps	No
dwNLVBCaps2	No
dwNLVBCKeyCaps	No
dwNLVBFXCaps	No
dwNLVBRops[DD_ROP_SPACE]	No
ddsCaps	Partial

DDCAPS.dwCaps

Bit	Set	Notes
DDCAPS_3D	No
DDCAPS_ALIGNBOUNDARYDEST	No
DDCAPS_ALIGNBOUNDARYSRC	No
DDCAPS_ALIGNSIZEDEST	No
DDCAPS_ALIGNSIZESRC	No
DDCAPS_ALIGNSTRIDE	No
DDCAPS_ALPHA	No
DDCAPS_BANKSWITCHED	No
DDCAPS_BLT	Partial	Blt() is not yet complete.
DDCAPS_BLTCOLORFILL	Yes
DDCAPS_BLTDEPTHFILL	No
DDCAPS_BLTFOURCC	No
DDCAPS_BLTQUEUE	No
DDCAPS_BLTSTRETCH	Yes
DDCAPS_CANBLTSYSMEM	Yes	Irrelevent in DXGL's architecture.
DDCAPS_CANCLIP	No
DDCAPS_CANCLIPSTRETCHED	No
DDCAPS_COLORKEY	Yes
DDCAPS_COLORKEYHWASSIST	No
DDCAPS_GDI	Partial	Can create DC's
DDCAPS_NOHARDWARE	No
DDCAPS_OVERLAY	No
DDCAPS_OVERLAYCANTCLIP	No
DDCAPS_OVERLAYFOURCC	No
DDCAPS_OVERLAYSTRETCH	No
DDCAPS_PALETTE	Yes
DDCAPS_PALETTEVSYNC	No
DDCAPS_READSCANLINE	No
DDCAPS_VBI	No
DDCAPS_ZBLTS	No
DDCAPS_ZOVERLAYS	No

DDCAPS.dwCaps2

Bit	Set	Notes
DDCAPS2_AUTOFLIPOVERLAY	No
DDCAPS2_CANBOBHARDWARE	No
DDCAPS2_CANBOBINTERLEAVED	No
DDCAPS2_CANBOBNONINTERLEAVED	No
DDCAPS2_CANCALIBRATEGAMMA	No
DDCAPS2_CANDROPZ16BIT	No
DDCAPS2_CANFLIPODDEVEN	No
DDCAPS2_CANMANAGETEXTURE	No
DDCAPS2_CANRENDERWINDOWED	Yes
DDCAPS2_CERTIFIED	No
DDCAPS2_COLORCONTROLPRIMARY	No
DDCAPS2_COLORCONTROLOVERLAY	No
DDCAPS2_COPYFOURCC	No
DDCAPS2_FLIPINTERVAL	Yes
DDCAPS2_FLIPNOVSYNC	Yes
DDCAPS2_NO2DDURING3DSCENE	No
DDCAPS2_NONLOCALVIDMEM	No
DDCAPS2_NONLOCALVIDMEMCAPS	No
DDCAPS2_NOPAGELOCKREQUIRED	Yes
DDCAPS2_PRIMARYGAMMA	No
DDCAPS2_STEREO	No
DDCAPS2_TEXMANINNONLOCALVIDMEM	No
DDCAPS2_VIDEOPORT	No
DDCAPS2_WIDESURFACES	Yes

DDCAPS.dwCKeyCaps

Bit	Set	Notes
DDCKEYCAPS_DESTBLT	No
DDCKEYCAPS_DESTBLTCLRSPACE	No
DDCKEYCAPS_DESTBLTCLRSPACEYUV	No
DDCKEYCAPS_DESTBLTYUV	No
DDCKEYCAPS_DESTOVERLAY	No
DDCKEYCAPS_DESTOVERLAYCLRSPACE	No
DDCKEYCAPS_DESTOVERLAYCLRSPACEYUV	No
DDCKEYCAPS_DESTOVERLAYONEACTIVE	No
DDCKEYCAPS_DESTOVERLAYYUV	No
DDCKEYCAPS_NOCOSTOVERLAY	No
DDCKEYCAPS_SRCBLT	Yes
DDCKEYCAPS_SRCBLTCLRSPACE	No
DDCKEYCAPS_SRCBLTCLRSPACEYUV	No
DDCKEYCAPS_SRCBLTYUV	No
DDCKEYCAPS_SRCOVERLAY	No
DDCKEYCAPS_SRCOVERLAYCLRSPACE	No
DDCKEYCAPS_SRCOVERLAYCLRSPACEYUV	No
DDCKEYCAPS_SRCOVERLAYONEACTIVE	No
DDCKEYCAPS_SRCOVERLAYYUV	No

DDCAPS.dwFXCaps

Bit	Set	Notes
DDFXCAPS_BLTALPHA	No
DDFXCAPS_BLTARITHSTRETCHY	No
DDFXCAPS_BLTARITHSTRETCHYN	No
DDFXCAPS_BLTFILTER	No
DDFXCAPS_BLTMIRRORLEFTRIGHT	No
DDFXCAPS_BLTMIRRORUPDOWN	No
DDFXCAPS_BLTROTATION	No
DDFXCAPS_BLTROTATION90	No
DDFXCAPS_BLTSHRINKX	Yes
DDFXCAPS_BLTSHRINKXN	No
DDFXCAPS_BLTSHRINKY	Yes
DDFXCAPS_BLTSHRINKYN	No
DDFXCAPS_BLTSTRETCHX	Yes
DDFXCAPS_BLTSTRETCHXN	No
DDFXCAPS_BLTSTRETCHY	Yes
DDFXCAPS_BLTSTRETCHYN	No
DDFXCAPS_BLTTRANSFORM	No
DDFXCAPS_OVERLAYFILTER	No
DDFXCAPS_OVERLAYMIRRORLEFTRIGHT	No
DDFXCAPS_OVERLAYMIRRORUPDOWN	No
DDFXCAPS_OVERLAYSHRINKX	No
DDFXCAPS_OVERLAYSHRINKXN	No
DDFXCAPS_OVERLAYSHRINKY	No
DDFXCAPS_OVERLAYSHRINKYN	No
DDFXCAPS_OVERLAYSTRETCHX	No
DDFXCAPS_OVERLAYSTRETCHXN	No
DDFXCAPS_OVERLAYSTRETCHY	No
DDFXCAPS_OVERLAYSTRETCHYN	No
DDFXCAPS_OVERLAYTRANSFORM	No

DDCAPS.dwFXAlphaCaps

Bit	Set	Notes
DDFXALPHACAPS_BLTALPHAEDGEBLEND	No
DDFXALPHACAPS_BLTALPHAPIXELS	No
DDFXALPHACAPS_BLTALPHAPIXELSNEG	No
DDFXALPHACAPS_BLTALPHASURFACES	No
DDFXALPHACAPS_BLTALPHASURFACESNEG	No
DDFXALPHACAPS_OVERLAYALPHAEDGEBLEND	No
DDFXALPHACAPS_OVERLAYALPHAPIXELS	No
DDFXALPHACAPS_OVERLAYALPHAPIXELSNEG	No
DDFXALPHACAPS_OVERLAYALPHASURFACES	No
DDFXALPHACAPS_OVERLAYALPHASURFACESNEG	No

DDCAPS.dwPalCaps

Bit	Set	Notes
DDPCAPS_1BIT	No
DDPCAPS_2BIT	No
DDPCAPS_4BIT	No
DDPCAPS_8BIT	Yes
DDPCAPS_8BITENTRIES	No
DDPCAPS_ALPHA	No
DDPCAPS_ALLOW256	No
DDPCAPS_PRIMARYSURFACE	Yes
DDPCAPS_PRIMARYSURFACELEFT	No
DDPCAPS_VSYNC	No

DDSCAPS2

Member	Implemented	Notes
dwCaps	Partial
dwCaps2	No
dwCaps3	N/A
dwCaps4	N/A

DDSCAPS2.dwCaps

Bit	Set	Notes
DDSCAPS_3D	N/A	Unused
DDSCAPS_3DDEVICE	No
DDSCAPS_ALLOCONLOAD	N/A
DDSCAPS_ALPHA	No
DDSCAPS_BACKBUFFER	Yes
DDSCAPS_COMPLEX	Partial	Only supports flipped surfaces
DDSCAPS_FLIP	Yes
DDSCAPS_FRONTBUFFER	Yes
DDSCAPS_HWCODEC	No
DDSCAPS_LIVEVIDEO	No
DDSCAPS_LOCALVIDMEM	No
DDSCAPS_MIPMAP	No
DDSCAPS_MODEX	No	Bit is ignored
DDSCAPS_NONLOCALVIDMEM	No
DDSCAPS_OFFSCREENPLAIN	Yes
DDSCAPS_OPTIMIZED	N/A
DDSCAPS_OVERLAY	No
DDSCAPS_OWNDC	No
DDSCAPS_PALETTE	Partial	Only supports 256 color palettes.
DDSCAPS_PRIMARYSURFACE	Yes
DDSCAPS_STANDARDVGAMODE	No	Bit is ignored.
DDSCAPS_SYSTEMMEMORY	Yes	Makes memory allocation occur at creation instead of first locking
DDSCAPS_TEXTURE	No
DDSCAPS_VIDEOMEMORY	Yes	Copied to system memory when locked.
DDSCAPS_VIDEOPORT	No
DDSCAPS_VISIBLE	No
DDSCAPS_WRITEONLY	No
DDSCAPS_ZBUFFER	No