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