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187 lines
6.1 KiB
187 lines
6.1 KiB
/******************************Module*Header*******************************\
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* Module Name: glp.h
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*
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* GL system routines shared between the front and back end
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*
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* Created: 12-Nov-1993 17:36:00
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* Author: Gilman Wong [gilmanw]
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*
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* Copyright (c) 1992-1995 Microsoft Corporation
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*
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\**************************************************************************/
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#ifndef _glp_
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#define _glp_
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// Calls into the back end
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typedef struct GLGENwindowRec GLGENwindow;
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// Fake object type for DirectDraw. BITMAP is used because it
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// shouldn't come up in the places we use GetObjectType.
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#define OBJ_DDRAW OBJ_BITMAP
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// Surface flags
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// HDC available
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#define GLSURF_HDC 0x00000001
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// DirectDraw surfaces available
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#define GLSURF_DIRECTDRAW 0x00000002
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// Metafile-based
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#define GLSURF_METAFILE 0x00000004
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// Direct memory access possible
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#define GLSURF_DIRECT_ACCESS 0x00000008
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// Screen surface, only set for HDC surfaces
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#define GLSURF_SCREEN 0x00000010
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// Direct DC surface
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#define GLSURF_DIRECTDC 0x00000020
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// Surface is in video memory
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#define GLSURF_VIDEO_MEMORY 0x00000040
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// Special surface types
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// Memory DC
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#define GLSURF_IS_MEMDC(dwFlags) \
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(((dwFlags) & (GLSURF_HDC | GLSURF_DIRECTDC | GLSURF_METAFILE)) == \
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GLSURF_HDC)
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// Non-memory, non-info DC
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#define GLSURF_IS_DIRECTDC(dwFlags) \
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(((dwFlags) & (GLSURF_HDC | GLSURF_DIRECTDC | GLSURF_METAFILE)) == \
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(GLSURF_HDC | GLSURF_DIRECTDC))
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// Direct DC for the screen
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#define GLSURF_IS_SCREENDC(dwFlags) \
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(((dwFlags) & (GLSURF_HDC | GLSURF_DIRECTDC | GLSURF_METAFILE | \
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GLSURF_SCREEN)) == \
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(GLSURF_HDC | GLSURF_DIRECTDC | GLSURF_SCREEN))
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typedef struct IDirectDrawSurface *LPDIRECTDRAWSURFACE;
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typedef struct _GLDDSURF
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{
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LPDIRECTDRAWSURFACE pdds;
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DDSURFACEDESC ddsd;
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DWORD dwBitDepth;
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} GLDDSURF;
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typedef struct _GLDDSURFACES
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{
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GLDDSURF gddsFront;
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GLDDSURF gddsZ;
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} GLDDSURFACES;
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typedef struct _GLSURF
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{
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DWORD dwFlags;
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int iLayer;
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int ipfd;
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PIXELFORMATDESCRIPTOR pfd;
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// Needed for ExtEscape calls for hardware even for surfaces, like
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// DirectDraw surfaces, which don't need a DC for access
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HDC hdc;
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// Source-specific fields
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union
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{
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HWND hwnd;
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GLDDSURFACES dd;
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};
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} GLSURF;
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DWORD APIENTRY DdbdToCount(DWORD ddbd);
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// The documentation says that depths returned in DDPIXELFORMATs are
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// DDBD_ constants, but they seem to be real numbers. Hide the conversion
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// necessary in case it needs to change.
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#define DdPixDepthToCount(ddpd) (ddpd)
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BYTE APIENTRY DdPixelDepth(DDSURFACEDESC *pddsd);
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void APIENTRY MaskToBitsAndShift(DWORD dwMask, BYTE *pbBits, BYTE *pbShift);
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BOOL APIENTRY InitDeviceSurface(HDC hdc, int ipfd, int iLayer,
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DWORD dwObjectType, BOOL bUpdatePfd,
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GLSURF *pgsurf);
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BOOL APIENTRY IsDirectDrawDevice(HDC hdc);
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BOOL APIENTRY glsrvAttention(PVOID, PVOID, PVOID, HANDLE);
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PVOID APIENTRY glsrvCreateContext(struct _GLWINDOWID *, GLSURF *);
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BOOL APIENTRY glsrvMakeCurrent(struct _GLWINDOWID *, PVOID, GLGENwindow *);
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VOID APIENTRY glsrvLoseCurrent(PVOID);
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BOOL APIENTRY glsrvDeleteContext(PVOID);
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BOOL APIENTRY glsrvSwapBuffers(HDC, GLGENwindow *);
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VOID APIENTRY glsrvThreadExit(void);
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VOID APIENTRY glsrvCleanupWindow(PVOID, GLGENwindow *);
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ULONG APIENTRY glsrvShareLists(PVOID, PVOID);
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BOOL APIENTRY glsrvCopyContext(PVOID, PVOID, UINT);
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BOOL APIENTRY glsrvBindDirectDrawTexture(struct __GLcontextRec *, int,
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LPDIRECTDRAWSURFACE *,
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DDSURFACEDESC *, ULONG);
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void APIENTRY glsrvUnbindDirectDrawTexture(struct __GLcontextRec *);
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BOOL APIENTRY __wglGetBitfieldColorFormat(HDC hdc, UINT cColorBits,
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PIXELFORMATDESCRIPTOR *ppfd,
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BOOL bDescribeSurf);
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BOOL APIENTRY wglIsDirectDevice(HDC hdc);
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// Cleans up any orphaned window information
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VOID APIENTRY wglValidateWindows(void);
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// GL metafile support function
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DWORD APIENTRY wglObjectType(HDC hdc);
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// Find pixel format counts
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VOID APIENTRY wglNumHardwareFormats(HDC hdc, DWORD dwType,
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int *piMcd, int *piIcd);
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// Calls from the back end to the front end
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int WINAPI __DrvDescribePixelFormat(HDC hdc, int ipfd, UINT cjpfd,
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LPPIXELFORMATDESCRIPTOR ppfd);
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BOOL WINAPI __DrvSetPixelFormat(HDC hdc, int ipfd, PVOID *pwnd);
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BOOL WINAPI __DrvSwapBuffers(HDC hdc, BOOL bFinish);
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extern CRITICAL_SECTION gcsPixelFormat;
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extern CRITICAL_SECTION gcsPaletteWatcher;
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extern DWORD tidPaletteWatcherThread;
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extern ULONG ulPaletteWatcherCount;
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extern HWND hwndPaletteWatcher;
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extern DWORD dwPlatformId;
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#define NT_PLATFORM ( dwPlatformId == VER_PLATFORM_WIN32_NT )
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#define WIN95_PLATFORM ( dwPlatformId == VER_PLATFORM_WIN32_WINDOWS )
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extern LONG lThreadsAttached;
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typedef HRESULT (WINAPI *PFN_GETSURFACEFROMDC)(HDC, LPDIRECTDRAWSURFACE *,
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HDC *);
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extern PFN_GETSURFACEFROMDC pfnGetSurfaceFromDC;
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#ifdef GL_METAFILE
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// OpenGL metafile support routines in GDI, dynamically linked
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// so the DLL can be run on platforms without metafile support
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extern BOOL (APIENTRY *pfnGdiAddGlsRecord)(HDC hdc, DWORD cb, BYTE *pb,
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LPRECTL prclBounds);
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extern BOOL (APIENTRY *pfnGdiAddGlsBounds)(HDC hdc, LPRECTL prclBounds);
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extern BOOL (APIENTRY *pfnGdiIsMetaPrintDC)(HDC hdc);
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#if DBG
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// Use NULL-checking thunks in debug mode to check erroneous DLL usage
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BOOL APIENTRY GlGdiAddGlsRecord(HDC hdc, DWORD cb, BYTE *pb,
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LPRECTL prclBounds);
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BOOL APIENTRY GlGdiAddGlsBounds(HDC hdc, LPRECTL prclBounds);
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BOOL APIENTRY GlGdiIsMetaPrintDC(HDC hdc);
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#else
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// Call directly through points in retail builds
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#define GlGdiAddGlsRecord(hdc, cb, pb, prcl) \
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pfnGdiAddGlsRecord(hdc, cb, pb, prcl)
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#define GlGdiAddGlsBounds(hdc, prcl) \
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pfnGdiAddGlsBounds(hdc, prcl)
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#define GlGdiIsMetaPrintDC(hdc) \
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pfnGdiIsMetaPrintDC(hdc)
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#endif
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#endif
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#include <alloc.h>
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#include <debug.h>
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#endif // _glp_
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