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DirectDraw to Direct3D9 Conversion Status

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Elisha Riedlinger edited this page Jul 2, 2025 · 28 revisions

Dd7to9 Status

For this page I will be talking about the status of the work to convert DirectX 1-7 to DirectX 9. This is a more technical discussion. For game compatibility check out this page here: Dd7to9 Compatibility

Table Key

Note --Status--
The function is fully implemented. #22863a Full
The function is partially implemented. It may work in some circumstances but not all. #ffcc01 Partial
The function is either not implemented at all or not enough to work correctly. #f03c15 None

DirectDraw Interfaces

IDirectDraw

Function Notes -Support-
Compact() Not implemented in DirectDraw. #22863a Full
CreateClipper() #22863a Full
CreatePalette() Using Direct3D9 pixel shader for handling the palette colors. Does not support DDPCAPS_PRIMARYSURFACELEFT flag. #ffcc01 Partial
CreateSurface() Does not support: CubeMaps, zPixels, BumpDUDV, BumpLuminance, Linear #ffcc01 Partial
DuplicateSurface() #22863a Full
EnumDisplayModes() #22863a Full
EnumSurfaces() Does not support: DDENUMSURFACES_DOESEXIST, DDENUMSURFACES_MATCH, DDENUMSURFACES_CANBECREATED #ffcc01 Partial
FlipToGDISurface() Does not properly flip to GDI surface. #ffcc01 Partial
GetCaps() #22863a Full
GetDisplayMode() #22863a Full
GetFourCCCodes() #22863a Full
GetGDISurface() Does not properly get the GDI surface. #ffcc01 Partial
GetMonitorFrequency() #22863a Full
GetScanLine() #22863a Full
GetVerticalBlankStatus() #22863a Full
Initialize() #22863a Full
RestoreDisplayMode() #22863a Full
SetCooperativeLevel() #22863a Full
SetDisplayMode() #22863a Full
WaitForVerticalBlank() Loops until vertical blink. #22863a Full
GetAvailableVidMem() Does not correctly get the available video memory. #ffcc01 Partial
GetSurfaceFromDC() Not implemented. #f03c15 None
RestoreAllSurfaces() #22863a Full
TestCooperativeLevel() #22863a Full
GetDeviceIdentifier() #22863a Full
StartModeTest() Not implemented. #f03c15 None
EvaluateMode() Not implemented. #f03c15 None

IDirectDrawSurface

Function Notes -Support-
AddAttachedSurface() This function is emulated. Does not support adding MipMaps through this function. #ffcc01 Partial
AddOverlayDirtyRect() #f03c15 None
Blt() Partially emulated. Does not support non-Windows raster operations and alpha flags. #ffcc01 Partial
BltBatch() Same as Blt() #ffcc01 Partial
BltFast() #22863a Full
DeleteAttachedSurface() #22863a Full
EnumAttachedSurfaces() #22863a Full
EnumOverlayZOrders() #f03c15 None
Flip() This function is emulated. Doesn't support DDFLIP_EVEN, DDFLIP_ODD and interval flipping. #ffcc01 Partial
GetAttachedSurface() This function is emulated. #22863a Full
GetBltStatus() #22863a Full
GetCaps() #22863a Full
GetClipper() #22863a Full
GetColorKey() #22863a Full
GetDC() #22863a Full
GetFlipStatus() #22863a Full
GetOverlayPosition() #22863a Full
GetPalette() #22863a Full
GetPixelFormat() #22863a Full
GetSurfaceDesc() #22863a Full
Initialize() #22863a Full
IsLost() #22863a Full
Lock() May have issues with concurrent locks to the same surface #ffcc01 Partial
ReleaseDC() #22863a Full
Restore() #22863a Full
SetClipper() #22863a Full
SetColorKey() #22863a Full
SetOverlayPosition() Just stores the position value #ffcc01 Partial
SetPalette() #22863a Full
Unlock() #22863a Full
UpdateOverlay() Uses Blt to emulate this. Does not support DDOVER_AUTOFLIP, alpha flags, BOB, interleaving, scale factors, dirty rect or refreashing overlay #ffcc01 Partial
UpdateOverlayDisplay() #f03c15 None
UpdateOverlayZOrder() #f03c15 None
GetDDInterface() #22863a Full
PageLock() #22863a Full
PageUnlock() #22863a Full
SetSurfaceDesc() Doesn't support updating all surface flags. #ffcc01 Partial
SetPrivateData() Private Data may be deleted prematurely in some cases. #ffcc01 Partial
GetPrivateData() Private Data may be deleted prematurely in some cases. #ffcc01 Partial
FreePrivateData() #22863a Full
GetUniquenessValue() #22863a Full
ChangeUniquenessValue() #22863a Full
SetPriority() Priority can be set, but is not used. #ffcc01 Partial
GetPriority() #22863a Full
SetLOD() LOD can be set, but is not used. #ffcc01 Partial
GetLOD() Not always getting the correct LOD #ffcc01 Partial

IDirectDrawClipper

Function Notes -Support-
GetClipList() #22863a Full
GetHWnd() #22863a Full
Initialize() #22863a Full
IsClipListChanged() Emulated and does not always report the true state of the cliplist. #ffcc01 Partial
SetClipList() #22863a Full
SetHWnd() #22863a Full

IDirectDrawPalette

Function Notes -Support-
GetCaps() #22863a Full
GetEntries() #22863a Full
Initialize() #22863a Full
SetEntries() Does not support DDPCAPS_PRIMARYSURFACELEFT or DDPCAPS_ALPHA #ffcc01 Partial

IDirectDrawColorControl

Function Notes -Support-
GetColorControls() #22863a Full
SetColorControls() Color can be set, but is not used. #ffcc01 Partial

IDirectDrawGammaControl

Function Notes -Support-
GetGammaRamp() #22863a Full
SetGammaRamp() Using a shader for gamma support. #22863a Full

Direct3D Interfaces

IDirect3D

Function Notes -Support-
Initialize() #22863a Full
EnumDevices() #22863a Full
CreateLight() #22863a Full
CreateMaterial() #22863a Full
CreateViewport() #22863a Full
FindDevice() #22863a Full
CreateDevice() Does not properly handle the CLSID sent in to this function. #ffcc01 Partial
CreateVertexBuffer() #22863a Full
EnumZBufferFormats() #22863a Full
EvictManagedTextures() Just returns OK, as texture eviction happens automatically in Direct3D9. #22863a Full

IDirect3DDevice

Function Notes -Support-
Initialize() #22863a Full
GetCaps() #22863a Full
SwapTextureHandles() This function is emulated. #22863a Full
CreateExecuteBuffer() #22863a Full
GetStats() #f03c15 None
Execute() Does not support D3DOP_PROCESSVERTICES and D3DOP_SPAN. Partial support for D3DOP_SETSTATUS and D3DOP_BRANCHFORWARD #ffcc01 Partial
AddViewport() #22863a Full
DeleteViewport() #22863a Full
NextViewport() #22863a Full
Pick() #f03c15 None
GetPickRecords() #f03c15 None
EnumTextureFormats() #22863a Full
CreateMatrix() #22863a Full
SetMatrix() #22863a Full
GetMatrix() #22863a Full
DeleteMatrix() #22863a Full
BeginScene() #22863a Full
EndScene() #22863a Full
GetDirect3D() #22863a Full
SetCurrentViewport() #22863a Full
GetCurrentViewport() #22863a Full
SetRenderTarget() #22863a Full
GetRenderTarget() #22863a Full
Begin() #f03c15 None
BeginIndexed() #f03c15 None
Vertex() #f03c15 None
Index() #f03c15 None
End() #f03c15 None
GetRenderState() #22863a Full
SetRenderState() Does not support D3DRENDERSTATE_FLUSHBATCH, D3DRENDERSTATE_COLORKEYBLENDENABLE, D3DRENDERSTATE_LINEPATTERN, D3DRENDERSTATE_ZVISIBLE, D3DRENDERSTATE_STIPPLE, D3DRENDERSTATE_EXTENTS, among others #ffcc01 Partial
GetLightState() #22863a Full
SetLightState() #22863a Full
SetTransform() #22863a Full
GetTransform() #22863a Full
MultiplyTransform() #22863a Full
DrawPrimitive() #22863a Full
DrawIndexedPrimitive() #22863a Full
SetClipStatus() Just stored the status, does nothing with it. Does not support D3DCLIPSTATUS_EXTENTS2 or D3DCLIPSTATUS_EXTENTS3 #ffcc01 Partial
GetClipStatus() #22863a Full
DrawPrimitiveStrided() #22863a Full
DrawIndexedPrimitiveStrided() #22863a Full
DrawPrimitiveVB() #22863a Full
DrawIndexedPrimitiveVB() #22863a Full
ComputeSphereVisibility() Just returns OK, indicating that all is visible. #ffcc01 Partial
GetTexture() #22863a Full
SetTexture() #22863a Full
GetTextureStageState() #22863a Full
SetTextureStageState() Does not support D3DTSS_SRGBTEXTURE, D3DTSS_ELEMENTINDEX, D3DTSS_DMAPOFFSET #ffcc01 Partial
ValidateDevice() #22863a Full
Clear() #22863a Full
SetViewport() #22863a Full
GetViewport() #22863a Full
SetMaterial() #22863a Full
GetMaterial() #22863a Full
SetLight() #22863a Full
GetLight() #22863a Full
BeginStateBlock() #22863a Full
EndStateBlock() #22863a Full
PreLoad() Just returns OK, as texture as there is no need to preload textures in Direct3D9. #22863a Full
ApplyStateBlock() #22863a Full
CaptureStateBlock() #22863a Full
DeleteStateBlock() #22863a Full
CreateStateBlock() #22863a Full
Load() #22863a Full
LightEnable() #22863a Full
GetLightEnable() #22863a Full
SetClipPlane() #22863a Full
GetClipPlane() #22863a Full
GetInfo() #22863a Full

IDirect3DViewport

Function Notes -Support-
Initialize() #22863a Full
GetViewport() #22863a Full
SetViewport() #22863a Full
TransformVertices() 'D3DTRANSFORM_CLIPPED' Not Implemented #ffcc01 Partial
LightElements() #22863a Full
SetBackground() #22863a Full
GetBackground() #22863a Full
SetBackgroundDepth() #f03c15 None
GetBackgroundDepth() #f03c15 None
Clear() #22863a Full
AddLight() #22863a Full
DeleteLight() #22863a Full
NextLight() #22863a Full
GetViewport2() #22863a Full
SetViewport2() 'clip volume' Not Implemented #ffcc01 Partial
SetBackgroundDepth2() #f03c15 None
GetBackgroundDepth2() #f03c15 None
Clear2() #22863a Full

IDirect3DTexture

Function Notes -Support-
Initialize() #22863a Full
GetHandle() #22863a Full
PaletteChanged() Just returns OK, as there is no need to notify a texture about the palette change as it happens automatically with the current implementation. #22863a Full
Load() #22863a Full
Unload() Just returns OK, as texture unloading happens automatically in Direct3D9. #22863a Full

IDirect3DMaterial

Function Notes -Support-
Initialize() #22863a Full
SetMaterial() RampSize Not Implemented #ffcc01 Partial
GetMaterial() #22863a Full
GetHandle() #22863a Full
Reserve() #22863a Full
Unreserve() #22863a Full

IDirect3DLight

Function Notes -Support-
Initialize() #22863a Full
SetLight() #22863a Full
GetLight() #22863a Full

IDirect3DExecuteBuffer

Function Notes -Support-
Initialize() #22863a Full
Lock() #22863a Full
Unlock() #22863a Full
SetExecuteData() #22863a Full
GetExecuteData() #22863a Full
Validate() #22863a Full
Optimize() #22863a Full

IDirect3DVertexBuffer

Function Notes -Support-
Lock() #22863a Full
Unlock() #22863a Full
ProcessVertices() #22863a Full
GetVertexBufferDesc() #22863a Full
Optimize() Just returns ok, as may not be needed for Direct3D9 #22863a Full
ProcessVerticesStrided() #22863a Full
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