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/******************************Module*Header*******************************\
* Module Name: mcd.h** Common data structures for MCD driver interface.** Copyright (c) 1996 Microsoft Corporation*\**************************************************************************/
#ifndef _MCD_H
#define _MCD_H
//
// Maximum MCD scanline size assumed by OpenGL generic implementation.
//
#define MCD_MAX_SCANLINE 4096
#define MCD_MEM_READY 0x0001
#define MCD_MEM_BUSY 0x0002
#define MCD_MEM_INVALID 0x0003
#define MCD_MAXMIPMAPLEVEL 12
typedef struct _MCDCONTEXT { HDC hdc; MCDHANDLE hMCDContext; LONG ipfd; LONG iLayer; ULONG_PTR dwMcdWindow;} MCDCONTEXT;
typedef struct _MCDRCINFOPRIV { MCDRCINFO mri; ULONG_PTR dwMcdWindow;} MCDRCINFOPRIV;
typedef struct _GENMCDSWAP{ struct GLGENwindowRec *pwnd; WGLSWAP *pwswap;} GENMCDSWAP;
typedef struct _GENMCDSTATE_ GENMCDSTATE;
//
// Shared memory allocated/freed via MCDAlloc and MCDFree, respectively.
//
typedef struct _GENMCDBUF_ { PVOID pv; ULONG size; HANDLE hmem;} GENMCDBUF;
//
// The GENMCDSURFACE retains information about the state of the MCD buffers
// or surface. It exists per-WNDOBJ (window).
//
typedef struct _GENMCDSURFACE_ { GENMCDBUF McdColorBuf; // Color and depth span buffers used to
GENMCDBUF McdDepthBuf; // read/write MCD buffers if not directly
// accessible.
ULONG *pDepthSpan; // Interchange buffer to present z-span in
// generic format. If McdDepthBuf is 32-bit,
// then this points to it (reformatted in
// place). If 16-bit, then the interchange
// buffer is allocated separately.
ULONG depthBitMask;
struct GLGENwindowRec *pwnd; // WNDOBJ this surface is bound to.
} GENMCDSURFACE;
//
// The GENMCDSTATE retains information about the state of the MCD context.
// It exists per-context.
//
typedef struct _GENMCDSTATE_ { MCDCONTEXT McdContext; // Created via MCDCreateContext.
// NOTE: This must be the first field.
GENMCDSURFACE *pMcdSurf; // pointer to MCD surface
GENMCDBUF *pMcdPrimBatch; // Current shared memory window for batching
// primitives
GENMCDBUF McdCmdBatch; // Used to pass state to MCD driver.
ULONG mcdDirtyState; // Set of flags that tracks when MCD state
// is out of sync (i.e., "dirty") with respect
// to generic state.
ULONG *pDepthSpan; // Cached copy of the one in GENMCDSURFACE.
// Fallback z-test span function.
void *softZSpanFuncPtr;
GENMCDBUF McdBuf1; // If using DMA, we swap pMcdPrimBatch
GENMCDBUF McdBuf2; // between these two buffers. Otherwise,
// only McdBuf1 is initialized.
MCDRCINFO McdRcInfo; // Cache a copy of the MCD RC info structure.
MCDRECTBUFFERS McdBuffers; // Describes accessibility of MCD buffers.
ULONG mcdFlags; // Misc. other state flags.
MCDPIXELFORMAT McdPixelFmt; // Cache a copy of the MCD pixel format.
HANDLE hDdColor; // Kernel-mode handles for DirectDraw
HANDLE hDdDepth;} GENMCDSTATE;
//
// Misc. flags for GENMCDSTATE.mcdFlags:
//
#define MCD_STATE_FORCEPICK 0x00000001
#define MCD_STATE_FORCERESIZE 0x00000002
//
// Dirty state flags for GENMCDSTATE.mcdDirtyState:
//
#define MCD_DIRTY_ENABLES 0x00000001
#define MCD_DIRTY_TEXTURE 0x00000002
#define MCD_DIRTY_FOG 0x00000004
#define MCD_DIRTY_SHADEMODEL 0x00000008
#define MCD_DIRTY_POINTDRAW 0x00000010
#define MCD_DIRTY_LINEDRAW 0x00000020
#define MCD_DIRTY_POLYDRAW 0x00000040
#define MCD_DIRTY_ALPHATEST 0x00000080
#define MCD_DIRTY_DEPTHTEST 0x00000100
#define MCD_DIRTY_BLEND 0x00000200
#define MCD_DIRTY_LOGICOP 0x00000400
#define MCD_DIRTY_FBUFCTRL 0x00000800
#define MCD_DIRTY_LIGHTMODEL 0x00001000
#define MCD_DIRTY_HINTS 0x00002000
#define MCD_DIRTY_VIEWPORT 0x00004000
#define MCD_DIRTY_SCISSOR 0x00008000
#define MCD_DIRTY_CLIPCTRL 0x00010000
#define MCD_DIRTY_STENCILTEST 0x00020000
#define MCD_DIRTY_PIXELSTATE 0x00040000
#define MCD_DIRTY_TEXENV 0x00080000
#define MCD_DIRTY_TEXTRANSFORM 0x00100000
#define MCD_DIRTY_TEXGEN 0x00200000
#define MCD_DIRTY_MATERIAL 0x00400000
#define MCD_DIRTY_LIGHTS 0x00800000
#define MCD_DIRTY_COLORMATERIAL 0x01000000
#define MCD_DIRTY_RENDERSTATE 0x0003ffff
#define MCD_DIRTY_ALL 0x01ffffff
// Internal driver information structure
typedef struct _MCDDRIVERINFOI { MCDDRIVERINFO mcdDriverInfo; MCDDRIVER mcdDriver;} MCDDRIVERINFOI;
//
// Return values for MCDLock.
// Zero must be used for the system error because it may be returned
// from ExtEscape if the system is unable to make the escape call.
//
#define MCD_LOCK_SYSTEM_ERROR 0
#define MCD_LOCK_BUSY 1
#define MCD_LOCK_TAKEN 2
BOOL APIENTRY MCDGetDriverInfo(HDC hdc, struct _MCDDRIVERINFOI *pMCDDriverInfo);LONG APIENTRY MCDDescribeMcdPixelFormat(HDC hdc, LONG iPixelFormat, MCDPIXELFORMAT *pMcdPixelFmt);LONG APIENTRY MCDDescribePixelFormat(HDC hdc, LONG iPixelFormat, LPPIXELFORMATDESCRIPTOR ppfd);BOOL APIENTRY MCDCreateContext(MCDCONTEXT *pMCDContext, MCDRCINFOPRIV *pDrvRcInfo, struct _GLSURF *pgsurf, int ipfd, ULONG flags);BOOL APIENTRY MCDDeleteContext(MCDCONTEXT *pMCDContext);UCHAR * APIENTRY MCDAlloc(MCDCONTEXT *pMCDContext, ULONG numBytes, MCDHANDLE *pMCDHandle, ULONG flags);BOOL APIENTRY MCDFree(MCDCONTEXT *pMCDContext, VOID *pMCDMem);VOID APIENTRY MCDBeginState(MCDCONTEXT *pMCDContext, VOID *pMCDMem);BOOL APIENTRY MCDFlushState(VOID *pMCDMem);BOOL APIENTRY MCDAddState(VOID *pMCDMem, ULONG stateToChange, ULONG stateValue);BOOL APIENTRY MCDAddStateStruct(VOID *pMCDMem, ULONG stateToChange, VOID *pStateValue, ULONG stateValueSize);BOOL APIENTRY MCDSetViewport(MCDCONTEXT *pMCDContext, VOID *pMCDMem, MCDVIEWPORT *pMCDViewport);BOOL APIENTRY MCDSetScissorRect(MCDCONTEXT *pMCDContext, RECTL *pRect, BOOL bEnabled);ULONG APIENTRY MCDQueryMemStatus(VOID *pMCDMem);PVOID APIENTRY MCDProcessBatch(MCDCONTEXT *pMCDContext, VOID *pMCDMem, ULONG batchSize, VOID *pMCDFirstCmd, int cExtraSurfaces, struct IDirectDrawSurface **pddsExtra);BOOL APIENTRY MCDReadSpan(MCDCONTEXT *pMCDContext, VOID *pMCDMem, ULONG x, ULONG y, ULONG numPixels, ULONG type);BOOL APIENTRY MCDWriteSpan(MCDCONTEXT *pMCDContext, VOID *pMCDMem, ULONG x, ULONG y, ULONG numPixels, ULONG type);BOOL APIENTRY MCDClear(MCDCONTEXT *pMCDContext, RECTL rect, ULONG buffers);BOOL APIENTRY MCDSwap(MCDCONTEXT *pMCDContext, ULONG flags);BOOL APIENTRY MCDGetBuffers(MCDCONTEXT *pMCDContext, MCDRECTBUFFERS *pMCDBuffers);BOOL APIENTRY MCDAllocBuffers(MCDCONTEXT *pMCDContext, RECTL *pWndRect);BOOL APIENTRY MCDBindContext(MCDCONTEXT *pMCDContext, HDC hdc, struct GLGENwindowRec *pwnd);BOOL APIENTRY MCDSync(MCDCONTEXT *pMCDContext);MCDHANDLE APIENTRY MCDCreateTexture(MCDCONTEXT *pMCDContext, MCDTEXTUREDATA *pTexData, ULONG flags, VOID *pSurface);BOOL APIENTRY MCDDeleteTexture(MCDCONTEXT *pMCDContext, MCDHANDLE hTex);BOOL APIENTRY MCDUpdateSubTexture(MCDCONTEXT *pMCDContext, MCDTEXTUREDATA *pTexData, MCDHANDLE hTex, ULONG lod, RECTL *pRect);BOOL APIENTRY MCDUpdateTexturePalette(MCDCONTEXT *pMCDContext, MCDTEXTUREDATA *pTexData, MCDHANDLE hTex, ULONG start, ULONG numEntries);BOOL APIENTRY MCDUpdateTexturePriority(MCDCONTEXT *pMCDContext, MCDTEXTUREDATA *pTexData, MCDHANDLE hTex);BOOL APIENTRY MCDUpdateTextureState(MCDCONTEXT *pMCDContext, MCDTEXTUREDATA *pTexData, MCDHANDLE hTex);ULONG APIENTRY MCDTextureStatus(MCDCONTEXT *pMCDContext, MCDHANDLE hTex);ULONG APIENTRY MCDTextureKey(MCDCONTEXT *pMCDContext, MCDHANDLE hTex);BOOL APIENTRY MCDDescribeMcdLayerPlane(HDC hdc, LONG iPixelFormat, LONG iLayerPlane, MCDLAYERPLANE *pMcdPixelFmt);BOOL APIENTRY MCDDescribeLayerPlane(HDC hdc, LONG iPixelFormat, LONG iLayerPlane, LPLAYERPLANEDESCRIPTOR ppfd);LONG APIENTRY MCDSetLayerPalette(HDC hdc, LONG iLayerPlane, BOOL bRealize, LONG cEntries, COLORREF *pcr);ULONG APIENTRY MCDDrawPixels(MCDCONTEXT *pMCDContext, ULONG width, ULONG height, ULONG format, ULONG type, VOID *pPixels, BOOL packed);ULONG APIENTRY MCDReadPixels(MCDCONTEXT *pMCDContext, LONG x, LONG y, ULONG width, ULONG height, ULONG format, ULONG type, VOID *pPixels);ULONG APIENTRY MCDCopyPixels(MCDCONTEXT *pMCDContext, LONG x, LONG y, ULONG width, ULONG height, ULONG type);ULONG APIENTRY MCDPixelMap(MCDCONTEXT *pMCDContext, ULONG mapType, ULONG mapSize, VOID *pMap);void APIENTRY MCDDestroyWindow(HDC hdc, ULONG_PTR dwMcdWindow);int APIENTRY MCDGetTextureFormats(MCDCONTEXT *pMCDContext, int nFmts, struct _DDSURFACEDESC *pddsd);ULONG APIENTRY MCDLock(MCDCONTEXT *pMCDContext);VOID APIENTRY MCDUnlock(MCDCONTEXT *pMCDContext);
#ifdef MCD95
typedef LPCRITICAL_SECTION (APIENTRY *MCDGETMCDCRITSECTFUNC)(void);#endif
#endif
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