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OS2DDRAW.CPP@ 210

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Last change on this file since 210 was 210, checked in by hugh, 26 years ago
DX 6 Version of ddraw rel files
File size: 47.5 KB

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1	#include <memory.h>
2
3	#define INITGUID
4	#include "os2ddraw.h"
5	#include "os2clipper.h"
6	#include "os2palette.h"
7	#include "os2surface.h"
8	#define _OS2WIN_H
9	#define FAR
10	#include "misc.h"
11	#include <winreg.h>
12	#include <winuser.h>
13	#include <winerror.h>
14	#include <builtin.h>
15	#include "cio2.h"
16
17	// include with the videomodes we support
18	// better would be to get these modes from the card
19	// But for now we use standard VESA 2.0 modes with 70Hz
20	#include "os2ddrawmodes.h"
21	#include "os2DDWindow.h"
22
23	#define KEY_DIRECT2 "\\Software\\Win32OS2\\Direct2"
24	#define KEY_DIRECT2DRAW "\\Software\\Win32OS2\\Direct2\\Draw"
25
26	FOURCC SupportedFourCCs[] = {FOURCC_LUT8,FOURCC_R565,FOURCC_RGB3,FOURCC_RGB4};
27	//******************************************************************************
28	//******************************************************************************
29	OS2IDirectDraw::OS2IDirectDraw(GUID *lpGUID) :
30	Referenced(0), lastError(DD_OK),
31	pFrameBuffer(NULL), hwndClient(0), screenwidth(640),
32	screenheight(480), screenbpp(8),PrimaryExists(false)
33
34	{
35	HKEY hkDirectDraw2;
36	DWORD dwVSize, dwVType;
37
38	// Setup table for 3d devices
39	Vtbl3D.AddRef = D3DAddRef;
40	Vtbl3D.Release = D3DRelease;
41	Vtbl3D.QueryInterface = D3DQueryInterface;
42	Vtbl3D.Initialize = D3DInitialize;
43	Vtbl3D.EnumDevices = D3DEnumDevices;
44	Vtbl3D.CreateLight = D3DCreateLight;
45	Vtbl3D.CreateMaterial = D3DCreateMaterial;
46	Vtbl3D.CreateViewport = D3DCreateViewport;
47	Vtbl3D.FindDevice = D3DFindDevice;
48
49	// old V2 Interface
50	Vtbl.AddRef = DrawAddRef;
51	Vtbl.Release = DrawRelease;
52	Vtbl.QueryInterface = DrawQueryInterface;
53	Vtbl.Compact = DrawCompact;
54	Vtbl.CreateClipper = DrawCreateClipper;
55	Vtbl.CreatePalette = DrawCreatePalette;
56	Vtbl.CreateSurface = DrawCreateSurface;
57	Vtbl.DuplicateSurface = DrawDuplicateSurface;
58	Vtbl.EnumDisplayModes = DrawEnumDisplayModes;
59	Vtbl.EnumSurfaces = DrawEnumSurfaces;
60	Vtbl.FlipToGDISurface = DrawFlipToGDISurface;
61	Vtbl.GetCaps = DrawGetCaps;
62	Vtbl.GetDisplayMode = DrawGetDisplayMode;
63	Vtbl.GetFourCCCodes = DrawGetFourCCCodes;
64	Vtbl.GetGDISurface = DrawGetGDISurface;
65	Vtbl.GetMonitorFrequency = DrawGetMonitorFrequency;
66	Vtbl.GetScanLine = DrawGetScanLine;
67	Vtbl.GetVerticalBlankStatus = DrawGetVerticalBlankStatus;
68	Vtbl.Initialize = DrawInitialize;
69	Vtbl.RestoreDisplayMode = DrawRestoreDisplayMode;
70	Vtbl.SetCooperativeLevel = DrawSetCooperativeLevel;
71	if(lpGUID && *lpGUID == IID_IDirectDraw2)
72	(ULONG )&Vtbl.SetDisplayMode = (ULONG)DrawSetDisplayMode2;
73	else
74	(ULONG )&Vtbl.SetDisplayMode = (ULONG)DrawSetDisplayMode;
75	Vtbl.WaitForVerticalBlank = DrawWaitForVerticalBlank;
76	Vtbl.GetAvailableVidMem = DrawGetAvailableVidMem;
77
78	// New V4 interface
79	Vtbl4.AddRef = DrawAddRef; // todo change to a DrawAddRef4 as handling this has changed
80	Vtbl4.Release = DrawRelease; // see above
81	Vtbl4.QueryInterface = DrawQueryInterface;
82	Vtbl4.Compact = DrawCompact;
83	Vtbl4.CreateClipper = DrawCreateClipper;
84	Vtbl4.CreateSurface = DrawCreateSurface4;//
85	Vtbl4.DuplicateSurface = DrawDuplicateSurface4;//
86	Vtbl4.EnumDisplayModes = DrawEnumDisplayModes4;//
87	Vtbl4.EnumSurfaces = DrawEnumSurfaces4; //
88	Vtbl4.FlipToGDISurface = DrawFlipToGDISurface;
89	Vtbl4.GetCaps = DrawGetCaps;
90	Vtbl4.GetDisplayMode = DrawGetDisplayMode4;//
91	Vtbl4.GetFourCCCodes = DrawGetFourCCCodes;
92	Vtbl4.GetGDISurface = DrawGetGDISurface4;//
93	Vtbl4.GetMonitorFrequency = DrawGetMonitorFrequency;
94	Vtbl4.GetScanLine = DrawGetScanLine;
95	Vtbl4.GetVerticalBlankStatus = DrawGetVerticalBlankStatus;
96	Vtbl4.Initialize = DrawInitialize;
97	Vtbl4.RestoreDisplayMode = DrawRestoreDisplayMode;
98	Vtbl4.SetCooperativeLevel = DrawSetCooperativeLevel;
99	Vtbl4.SetDisplayMode = DrawSetDisplayMode2;
100	Vtbl4.WaitForVerticalBlank = DrawWaitForVerticalBlank;
101	Vtbl4.GetAvailableVidMem = DrawGetAvailableVidMem4;
102	Vtbl4.GetSurfaceFromDC = DrawGetSurfaceFromDC;
103	Vtbl4.RestoreAllSurfaces = DrawRestoreAllSurfaces;
104	Vtbl4.TestCooperativeLevel = DrawTestCooperativeLevel;
105	Vtbl4.GetDeviceIdentifier = DrawGetDeviceIdentifier;
106
107	if(lpGUID && *lpGUID == IID_IDirect3D)
108	{
109	WriteLog("D3D Interface\n");
110
111	lpVtbl = (IDirectDraw4Vtbl *)&Vtbl3D;
112	}
113	else
114	{
115	if(lpGUID && *lpGUID == IID_IDirectDraw4)
116	{
117	WriteLog("V4 Interface\n");
118	lpVtbl = &Vtbl4;
119	}
120	else
121	{
122	WriteLog("<V4 Interface\n");
123	lpVtbl = (IDirectDraw4Vtbl *) &Vtbl;
124	}
125	}
126
127	ULONG rc = DiveOpen(&hDive, FALSE, &pFrameBuffer);
128	if(rc)
129	{
130	WriteLog("ERROR: DiveOpen returned %d\n", rc);
131	lastError = DDERR_GENERIC;
132	hDive = NULL;
133	}
134	else
135	{
136	rc = DiveQueryCaps(&dCaps,DIVE_BUFFER_SCREEN);
137	}
138
139	// Shall we run in FS mode ?
140	if(ERROR_SUCCESS==RegOpenKeyA(HKEY_LOCAL_MACHINE,KEY_DIRECT2DRAW,&hkDirectDraw2))
141	{
142	dwVSize = 4;
143	dwVType = REG_DWORD;
144	if(ERROR_SUCCESS!=RegQueryValueExA(hkDirectDraw2,"Fullscreen",NULL,&dwVType,(LPBYTE)&bScale,&dwVSize))
145	bScale = FALSE;
146	}
147	else
148	bScale = FALSE;
149	}
150	//******************************************************************************
151	//******************************************************************************
152	OS2IDirectDraw::~OS2IDirectDraw()
153	{
154	dprintf(("OS2IDirectDraw::~OS2IDirectDraw()\n"));
155	if(hDive)
156	DiveClose(hDive);
157	}
158	//******************************************************************************
159	//******************************************************************************
160	FOURCC OS2IDirectDraw::GetScreenFourCC()
161	{
162	return SupportedFourCCs[screenbpp>>3];
163	}
164	//******************************************************************************
165	//******************************************************************************
166	HRESULT __stdcall DrawQueryInterface(THIS This, REFIID riid, LPVOID FAR * ppvObj)
167	{
168	OS2IDirectDraw me = (OS2IDirectDraw )This;
169	#ifdef DEBUG
170	WriteLog("OS2IDirectDraw::QueryInterface\n");
171	#endif
172
173	*ppvObj = NULL;
174
175	if(!IsEqualGUID(riid, CLSID_DirectDraw) &&
176	!IsEqualGUID(riid, IID_IDirectDraw) &&
177	!IsEqualGUID(riid, IID_IDirectDraw2) &&
178	!IsEqualGUID(riid, IID_IDirectDraw4))
179	//&& !IsEqualGUID(riid, IID_IUnknown))
180	return E_NOINTERFACE;
181
182	// ToDo Better way of returning differnent intterfaces for same class
183
184	if(IsEqualGUID(riid, IID_IDirectDraw4))
185	{
186	WriteLog("IID_IDirectDraw4 Interface\n");
187	me->lpVtbl = &me->Vtbl4;
188	}
189	else
190	{
191	WriteLog("No IID_IDirectDraw4 Interface\n");
192	me->lpVtbl = (IDirectDraw4Vtbl *) &me->Vtbl;
193	}
194	*ppvObj = This;
195	DrawAddRef(This);
196	return(DD_OK);
197	}
198	//******************************************************************************
199	//******************************************************************************
200	ULONG __stdcall DrawAddRef(THIS This)
201	{
202	OS2IDirectDraw me = (OS2IDirectDraw )This;
203
204	#ifdef DEBUG
205	WriteLog("OS2IDirectDraw::AddRef %d\n", me->Referenced+1);
206	#endif
207
208	return ++me->Referenced;
209	}
210	//******************************************************************************
211	//******************************************************************************
212	ULONG __stdcall DrawRelease(THIS This)
213	{
214	OS2IDirectDraw me = (OS2IDirectDraw )This;
215
216	#ifdef DEBUG
217	WriteLog("OS2IDirectDraw::Release %d\n", me->Referenced-1);
218	WriteLog("OS2IDirectDraw::%X \n", me);
219	#endif
220
221	if(me->Referenced)
222	{
223
224	me->Referenced--;
225	if(me->Referenced == 0)
226	{
227	delete me;
228	return(0);
229	}
230	else
231	return me->Referenced;
232	}
233	else
234	return(0);
235	}
236	//******************************************************************************
237	//******************************************************************************
238	HRESULT __stdcall DrawCompact(THIS)
239	{
240	#ifdef DEBUG
241	WriteLog("Compact\n");
242	#endif
243
244	return(DD_OK);
245	}
246	//******************************************************************************
247	//******************************************************************************
248	HRESULT __stdcall DrawCreateClipper(THIS This, DWORD, LPDIRECTDRAWCLIPPER FAR lplpDD, IUnknown FAR )
249	{
250	OS2IDirectDraw me = (OS2IDirectDraw )This;
251	OS2IDirectDrawClipper *newclip = new OS2IDirectDrawClipper(me);
252	HRESULT rc;
253
254	#ifdef DEBUG
255	WriteLog("CreateClipper\n");
256	#endif
257
258	if(newclip == NULL)
259	return(DDERR_OUTOFMEMORY);
260
261	newclip->Vtbl.AddRef((IDirectDrawClipper *)newclip);
262	rc = newclip->GetLastError();
263	if(rc != DD_OK)
264	{
265	*lplpDD = NULL;
266	delete newclip;
267	}
268	else
269	lplpDD = (IDirectDrawClipper )newclip;
270
271	return(rc);
272	}
273	//******************************************************************************
274	//******************************************************************************
275	HRESULT __stdcall DrawCreatePalette(THIS This, DWORD dwFlags,
276	LPPALETTEENTRY lpColorTable,
277	LPDIRECTDRAWPALETTE FAR *lplpDD,
278	IUnknown FAR *pUnkOuter)
279	{
280	OS2IDirectDraw me = (OS2IDirectDraw )This;
281	OS2IDirectDrawPalette *newpal;
282	HRESULT rc;
283	int palsize = 0;
284
285	if(dwFlags & DDPCAPS_8BITENTRIES)
286	{
287	// We Don't support Indexed palettes...
288
289	return DDERR_INVALIDPARAMS;
290	}
291
292	if(dwFlags & DDPCAPS_2BIT)
293	palsize = 4;
294	if(dwFlags & DDPCAPS_4BIT)
295	palsize = 16;
296	if(dwFlags & DDPCAPS_8BIT)
297	palsize = 256;
298	if(dwFlags & DDPCAPS_ALLOW256)
299	palsize = 256;
300
301	if(palsize == 0)
302	return DDERR_INVALIDPARAMS;
303
304	#ifdef DEBUG
305	WriteLog("CreatePalette with %d colors\n", palsize);
306	#endif
307
308	newpal = new OS2IDirectDrawPalette(me, palsize, lpColorTable, dwFlags);
309	if(newpal == NULL)
310	return(DDERR_OUTOFMEMORY);
311
312	newpal->Vtbl.AddRef((IDirectDrawPalette *)newpal);
313	rc = newpal->GetLastError();
314	if(rc != DD_OK)
315	{
316	*lplpDD = NULL;
317	delete newpal;
318	}
319	else
320	lplpDD = (IDirectDrawPalette )newpal;
321
322	return(rc);
323	}
324	//******************************************************************************
325	//******************************************************************************
326	HRESULT __stdcall DrawCreateSurface(THIS This, LPDDSURFACEDESC lpDDSurfaceDesc,
327	LPDIRECTDRAWSURFACE FAR *lplpDD,
328	IUnknown FAR *pUnkOuter)
329	{
330	OS2IDirectDraw me = (OS2IDirectDraw )This;
331	OS2IDirectDrawSurface *newsurf;
332	HRESULT rc;
333
334	#ifdef DEBUG
335	WriteLog("CreateSurface\n");
336	WriteLog("dwSize %d\n", lpDDSurfaceDesc->dwSize);
337	WriteLog("dwFlags %X\n", lpDDSurfaceDesc->dwFlags);
338	WriteLog("dwHeight %d\n", lpDDSurfaceDesc->dwHeight);
339	WriteLog("dwWidth %d\n", lpDDSurfaceDesc->dwWidth);
340	WriteLog("lPitch %d\n", lpDDSurfaceDesc->lPitch);
341	WriteLog("dwBackBufferCount %d\n", lpDDSurfaceDesc->dwBackBufferCount);
342	WriteLog("dwMipMapCount %d\n", lpDDSurfaceDesc->dwMipMapCount);
343	WriteLog("dwAlphaBitDepth %d\n", lpDDSurfaceDesc->dwAlphaBitDepth);
344	WriteLog("ddsCaps.dwCaps %X\n", lpDDSurfaceDesc->ddsCaps.dwCaps);
345	#endif
346
347	newsurf = new OS2IDirectDrawSurface(me, (LPDDSURFACEDESC2)lpDDSurfaceDesc);
348
349	if(newsurf == NULL)
350	return(DDERR_OUTOFMEMORY);
351
352	newsurf->Vtbl.AddRef((IDirectDrawSurface *)newsurf);
353	rc = newsurf->GetLastError();
354	if(rc != DD_OK)
355	{
356	WriteLog("Error createing Surface");
357	*lplpDD = NULL;
358	delete newsurf;
359	}
360	else
361	lplpDD = (IDirectDrawSurface )newsurf;
362
363	return(rc);
364	}
365	//******************************************************************************
366	//******************************************************************************
367	HRESULT __stdcall DrawCreateSurface4(THIS This, LPDDSURFACEDESC2 lpDDSurfaceDesc2,
368	LPDIRECTDRAWSURFACE4 FAR *lplpDD,
369	IUnknown FAR *pUnkOuter)
370	{
371	OS2IDirectDraw me = (OS2IDirectDraw )This;
372	OS2IDirectDrawSurface *newsurf;
373	HRESULT rc;
374
375	#ifdef DEBUG
376	WriteLog("CreateSurface4\n");
377	WriteLog("dwSize %d\n", lpDDSurfaceDesc2->dwSize);
378	WriteLog("dwHeight %d\n", lpDDSurfaceDesc2->dwHeight);
379	WriteLog("dwWidth %d\n", lpDDSurfaceDesc2->dwWidth);
380	WriteLog("lPitch %d\n", lpDDSurfaceDesc2->lPitch);
381	WriteLog("dwBackBufferCount %d\n", lpDDSurfaceDesc2->dwBackBufferCount);
382	WriteLog("dwMipMapCount %d\n", lpDDSurfaceDesc2->dwMipMapCount);
383	WriteLog("dwAlphaBitDepth %d\n", lpDDSurfaceDesc2->dwAlphaBitDepth);
384	WriteLog("ddsCaps.dwCaps %X\n", lpDDSurfaceDesc2->ddsCaps.dwCaps);
385	#endif
386
387	newsurf = new OS2IDirectDrawSurface(me, lpDDSurfaceDesc2);
388
389	if(newsurf == NULL)
390	return(DDERR_OUTOFMEMORY);
391
392	newsurf->Vtbl.AddRef((IDirectDrawSurface *)newsurf);
393	rc = newsurf->GetLastError();
394	if(rc != DD_OK)
395	{
396	WriteLog("Error createing Surface");
397	*lplpDD = NULL;
398	delete newsurf;
399	}
400	else
401	lplpDD = (IDirectDrawSurface4 )newsurf;
402
403	return(rc);
404	}
405	//******************************************************************************
406	//******************************************************************************
407	HRESULT __stdcall DrawDuplicateSurface(THIS, LPDIRECTDRAWSURFACE, LPDIRECTDRAWSURFACE FAR * )
408	{
409	#ifdef DEBUG
410	WriteLog("DuplicateSurface\n");
411	#endif
412	return(DD_OK);
413	}
414	//******************************************************************************
415	//******************************************************************************
416	HRESULT __stdcall DrawDuplicateSurface4(THIS, LPDIRECTDRAWSURFACE4, LPDIRECTDRAWSURFACE4 FAR * )
417	{
418	#ifdef DEBUG
419	WriteLog("DuplicateSurface\n");
420	#endif
421
422	return(DD_OK);
423	}
424	//******************************************************************************
425	//******************************************************************************
426	HRESULT __stdcall DrawEnumDisplayModes(THIS This, DWORD dwFlags, LPDDSURFACEDESC lpDDSurfaceDesc,
427	LPVOID lpContext, LPDDENUMMODESCALLBACK lpDDEnumModesCallback)
428	{
429	int iMode = 0;
430	DDSURFACEDESC DDSurfAct;
431	BOOL fCallAgain;
432	OS2IDirectDraw me = (OS2IDirectDraw )This;
433
434	#ifdef DEBUG
435	WriteLog("EnumDisplayModes\n");
436	#endif
437
438	// Check for Pointer to callback function
439	if (NULL == lpDDEnumModesCallback)
440	{
441	#ifdef DEBUG
442	WriteLog("EnumDisplayModes : Error NO EnumFunction passed in\n");
443	#endif
444
445	return(DDERR_GENERIC);
446	}
447
448
449	// Setting up the surface
450	// During enum we report resolution and bitdepth, maybe we should
451	// also report back : Caps and Pitch
452	memset(&DDSurfAct,0,sizeof(DDSURFACEDESC));
453	DDSurfAct.dwSize = sizeof(DDSURFACEDESC);
454	DDSurfAct.dwFlags = DDSD_HEIGHT \| DDSD_WIDTH \| DDSD_PIXELFORMAT ;
455	// Only report the bitdepth hope this is ok this way, we must set the BitMask fields
456
457	DDSurfAct.ddpfPixelFormat.dwSize = sizeof (DDPIXELFORMAT);
458	DDSurfAct.ddpfPixelFormat.dwFlags = DDPF_RGB;
459	// Check if we use DIVE or Voodoo
460	if(me->lpVtbl != (IDirectDraw4Vtbl *) &(me->Vtbl3D))
461	{
462	// DIVE modes
463
464	// Enumerate all modes ?
465	if (NULL==lpDDSurfaceDesc)
466	{
467	// Check if we shall report 320x200 mode
468
469	if(dwFlags && DDEDM_STANDARDVGAMODES)
470	{
471	DDSurfAct.dwHeight = ModesDive[0].iYRes;
472	DDSurfAct.dwWidth = ModesDive[0].iXRes;
473	DDSurfAct.ddpfPixelFormat.dwRGBBitCount = ModesDive[0].iBits;
474	if(!lpDDEnumModesCallback(&DDSurfAct,lpContext))
475	return (DD_OK);
476	}
477	// Don't know the flag for Mode X so we skip reporting it
478
479	// Now report all our modes
480	iMode = 2;
481	fCallAgain = TRUE;
482	do
483	{
484	// if the mode fits in the current resolution report it
485	// Change this if we support Fullscreen later !!!
486	if(ModesDive[iMode].iXRes < me->dCaps.ulHorizontalResolution)
487	{
488	DDSurfAct.dwHeight = ModesDive[iMode].iYRes;
489	DDSurfAct.dwWidth = ModesDive[iMode].iXRes;
490	DDSurfAct.ddpfPixelFormat.dwRGBBitCount = ModesDive[iMode].iBits;
491	switch(ModesDive[iMode].iBits)
492	{
493	case 16:
494	// VESA uses 565 encoding in 16 bit modes
495	lpDDSurfaceDesc->ddpfPixelFormat.dwRBitMask = 0x0000F800;
496	lpDDSurfaceDesc->ddpfPixelFormat.dwGBitMask = 0x000007E0;
497	lpDDSurfaceDesc->ddpfPixelFormat.dwBBitMask = 0x0000001F;
498	break;
499	case 24:
500	// VESA uses per default RGB4
501	lpDDSurfaceDesc->ddpfPixelFormat.dwRBitMask = 0x00FF0000;
502	lpDDSurfaceDesc->ddpfPixelFormat.dwGBitMask = 0x0000FF00;
503	lpDDSurfaceDesc->ddpfPixelFormat.dwBBitMask = 0x000000FF;
504	break;
505	default:
506	break;
507	}
508	fCallAgain = lpDDEnumModesCallback(&DDSurfAct,lpContext);
509	}
510	iMode++;
511	}
512	while((ModesDive[iMode].iBits <= me->dCaps.ulDepth) &&
513	(iMode < NUM_MODES_DIVE) && (TRUE==fCallAgain));
514	}
515	else
516	{
517	// No, so filter modes with lpDDSurfaceDesc
518
519	// Return Error if the program want to use other than the 3 supported values
520	// for filtering
521
522	if (lpDDSurfaceDesc->dwFlags & !(DDSD_WIDTH\|DDSD_HEIGHT\|DDSD_PIXELFORMAT))
523	return(DDERR_INVALIDPARAMS);
524
525	iMode = 0;
526	if( (dwFlags && DDEDM_STANDARDVGAMODES) &&
527	(
528	(((lpDDSurfaceDesc->dwFlags & DDSD_WIDTH)&&
529	(ModesDive[iMode].iXRes==lpDDSurfaceDesc->dwWidth)
530	)\|\|(!(lpDDSurfaceDesc->dwFlags & DDSD_WIDTH)))&&
531	(((lpDDSurfaceDesc->dwFlags & DDSD_HEIGHT)&&
532	(ModesDive[iMode].iYRes==lpDDSurfaceDesc->dwHeight))\|\|
533	(!(lpDDSurfaceDesc->dwFlags & DDSD_HEIGHT)))&&
534	(((lpDDSurfaceDesc->dwFlags & DDSD_PIXELFORMAT) &&
535	(ModesDive[iMode].iBits==lpDDSurfaceDesc->ddpfPixelFormat.dwRGBBitCount))\|\|
536	(!(lpDDSurfaceDesc->dwFlags & DDSD_PIXELFORMAT)))
537	)
538	)
539	{
540	DDSurfAct.dwHeight = ModesDive[0].iYRes;
541	DDSurfAct.dwWidth = ModesDive[0].iXRes;
542	DDSurfAct.ddpfPixelFormat.dwRGBBitCount = ModesDive[0].iBits;
543	if(!lpDDEnumModesCallback(&DDSurfAct,lpContext))
544	return (DD_OK);
545	}
546	// Don't know the flag for Mode X so we skip reporting it
547
548	// Now report all our modes
549	iMode = 2;
550	fCallAgain = TRUE;
551	do
552	{
553	// if the mode fits in the current resolution and the filter applies report it
554	// Change this if we support Fullscreen later !!!
555	if( (ModesDive[iMode].iXRes < me->dCaps.ulHorizontalResolution)&&
556	(
557	(((lpDDSurfaceDesc->dwFlags & DDSD_WIDTH)&&
558	(ModesDive[iMode].iXRes==lpDDSurfaceDesc->dwWidth))\|\|
559	(!(lpDDSurfaceDesc->dwFlags & DDSD_WIDTH)))&&
560	(((lpDDSurfaceDesc->dwFlags & DDSD_HEIGHT)&&
561	(ModesDive[iMode].iYRes==lpDDSurfaceDesc->dwHeight))\|\|
562	(!(lpDDSurfaceDesc->dwFlags & DDSD_HEIGHT)))&&
563	(((lpDDSurfaceDesc->dwFlags & DDSD_PIXELFORMAT) &&
564	(ModesDive[iMode].iBits==lpDDSurfaceDesc->ddpfPixelFormat.dwRGBBitCount))\|\|
565	(!(lpDDSurfaceDesc->dwFlags & DDSD_PIXELFORMAT)))
566	)
567	)
568	{
569	DDSurfAct.dwHeight = ModesDive[iMode].iYRes;
570	DDSurfAct.dwWidth = ModesDive[iMode].iXRes;
571	DDSurfAct.ddpfPixelFormat.dwRGBBitCount = ModesDive[iMode].iBits;
572
573	fCallAgain = lpDDEnumModesCallback(&DDSurfAct,lpContext);
574	}
575	iMode++;
576	}
577	while((ModesDive[iMode].iBits <= me->dCaps.ulDepth) &&
578	(iMode < NUM_MODES_DIVE) && (TRUE==fCallAgain));
579
580	}
581	}
582	else
583	{
584
585	// VOODOO modes
586
587	// Enumerate all modes ?
588	if (NULL==lpDDSurfaceDesc)
589	{
590
591	// report all our modes
592	iMode = 0;
593	fCallAgain = TRUE;
594	do
595	{
596	DDSurfAct.dwHeight = ModesVoodoo[iMode].iYRes;
597	DDSurfAct.dwWidth = ModesVoodoo[iMode].iXRes;
598	DDSurfAct.ddpfPixelFormat.dwRGBBitCount = ModesVoodoo[iMode].iBits;
599
600	fCallAgain = lpDDEnumModesCallback(&DDSurfAct,lpContext);
601	iMode++;
602	}
603	while((iMode < NUM_MODES_VOODOO) && (TRUE==fCallAgain));
604	}
605	else
606	{
607	// No, so filter modes with lpDDSurfaceDesc
608
609	// Return Error if the program want to use other than the 3 supported values
610	// for filtering
611
612	if (lpDDSurfaceDesc->dwFlags & !(DDSD_WIDTH\|DDSD_HEIGHT\|DDSD_PIXELFORMAT))
613	return(DDERR_INVALIDPARAMS);
614
615	iMode = 2;
616	fCallAgain = TRUE;
617	do
618	{
619	// if the mode fits the filter applies report it
620	if(
621	(((lpDDSurfaceDesc->dwFlags & DDSD_WIDTH)&&
622	(ModesVoodoo[iMode].iXRes==lpDDSurfaceDesc->dwWidth))\|\|
623	(!(lpDDSurfaceDesc->dwFlags & DDSD_WIDTH)))&&
624	(((lpDDSurfaceDesc->dwFlags & DDSD_HEIGHT)&&
625	(ModesVoodoo[iMode].iYRes==lpDDSurfaceDesc->dwHeight))\|\|
626	(!(lpDDSurfaceDesc->dwFlags & DDSD_HEIGHT)))&&
627	(((lpDDSurfaceDesc->dwFlags & DDSD_PIXELFORMAT) &&
628	(ModesVoodoo[iMode].iBits==lpDDSurfaceDesc->ddpfPixelFormat.dwRGBBitCount))\|\|
629	(!(lpDDSurfaceDesc->dwFlags & DDSD_PIXELFORMAT)))
630	)
631	{
632	DDSurfAct.dwHeight = ModesVoodoo[iMode].iYRes;
633	DDSurfAct.dwWidth = ModesVoodoo[iMode].iXRes;
634	DDSurfAct.ddpfPixelFormat.dwRGBBitCount = ModesVoodoo[iMode].iBits;
635
636	fCallAgain = lpDDEnumModesCallback(&DDSurfAct,lpContext);
637	}
638	iMode++;
639	}
640	while((iMode < NUM_MODES_VOODOO) && (TRUE==fCallAgain));
641
642	}
643
644	}
645
646	return(DD_OK);
647	}
648	//******************************************************************************
649	//******************************************************************************
650	HRESULT __stdcall DrawEnumDisplayModes4(THIS This, DWORD dwFlags, LPDDSURFACEDESC2 lpDDSurfaceDesc2,
651	LPVOID lpContext, LPDDENUMMODESCALLBACK2 lpDDEnumModesCallback2)
652	{
653	int iMode = 0;
654	DDSURFACEDESC DDSurfAct;
655	BOOL fCallAgain;
656	OS2IDirectDraw me = (OS2IDirectDraw )This;
657
658	#ifdef DEBUG
659	WriteLog("EnumDisplayModes4\n");
660	#endif
661	return(DD_OK);
662	}
663	//******************************************************************************
664	//******************************************************************************
665	HRESULT __stdcall DrawEnumSurfaces(THIS, DWORD, LPDDSURFACEDESC, LPVOID,LPDDENUMSURFACESCALLBACK )
666	{
667	#ifdef DEBUG
668	WriteLog("EnumSurfaces\n");
669	#endif
670
671	return(DD_OK);
672	}
673	//******************************************************************************
674	//******************************************************************************
675	HRESULT __stdcall DrawEnumSurfaces4(THIS, DWORD, LPDDSURFACEDESC2, LPVOID,LPDDENUMSURFACESCALLBACK2 )
676	{
677	#ifdef DEBUG
678	WriteLog("EnumSurfaces4\n");
679	#endif
680
681	return(DD_OK);
682	}
683	//******************************************************************************
684	//******************************************************************************
685	HRESULT __stdcall DrawFlipToGDISurface(THIS)
686	{
687	#ifdef DEBUG
688	WriteLog("FlipToGDISurface\n");
689	#endif
690
691	return(DD_OK);
692	}
693	//******************************************************************************
694	//******************************************************************************
695	HRESULT __stdcall DrawGetCaps(THIS, LPDDCAPS lpDDDriverCaps, LPDDCAPS lpDDHELCaps)
696	{
697	#ifdef DEBUG
698	WriteLog("GetCaps\n");
699	#endif
700
701	if( (NULL==lpDDDriverCaps) && (NULL==lpDDHELCaps) )
702	return(DDERR_INVALIDPARAMS);
703
704	if(NULL!=lpDDDriverCaps)
705	{
706	// Caller want Driver Caps
707
708	if(sizeof(DDCAPS)!=lpDDDriverCaps->dwSize)
709	return(DDERR_INVALIDPARAMS);
710
711	// Clear structure so we only have to set the supported flags
712	memset(lpDDDriverCaps,0,sizeof(DDCAPS));
713
714	// Reset the size
715	lpDDDriverCaps->dwSize = sizeof(DDCAPS);
716
717	// Now report the CAPs back which we support
718	lpDDDriverCaps->dwCaps = DDCAPS_BLT \| // We do blitting
719	DDCAPS_BLTCOLORFILL \| // We do colorfills
720	DDCAPS_COLORKEY \| // We support Colorkeying
721	DDCAPS_COLORKEYHWASSIST \| // But we (may) use the CPU
722	DDCAPS_GDI \| // Maybe check if we are on Voodoo ?
723	DDCAPS_PALETTEVSYNC; // Got VSync
724
725	lpDDDriverCaps->dwCaps2 = DDCAPS2_CERTIFIED \| // Who cares so say yes
726	DDCAPS2_CANRENDERWINDOWED \| // Better check for Voodoo ?!
727	DDCAPS2_COPYFOURCC \| // yepp memcpy will do this
728	DDCAPS2_NONLOCALVIDMEM \| // All surfaces are in memory
729	DDCAPS2_WIDESURFACES; // Any size you want!
730
731	lpDDDriverCaps->dwCKeyCaps = DDCKEYCAPS_SRCBLT; // Only source transparent blitting
732
733	// lpDDDriverCaps->dwFXCaps = DDFXCAPS_BLTMIRRORUPDOWN; // DIVE supports this, do we also ?
734	// Maybe later add stretching support?
735
736	lpDDDriverCaps->dwPalCaps = DDPCAPS_8BIT \| // Only 8 Bits pals
737	DDPCAPS_ALLOW256 \| // But all 256 colors
738	DDPCAPS_VSYNC \| // Vsync yet
739	DDPCAPS_PRIMARYSURFACE; //
740	lpDDDriverCaps->dwVidMemTotal = 2048*1024; // total video memory
741	lpDDDriverCaps->dwVidMemFree = 2048*1024; // total free video memory
742	lpDDDriverCaps->dwNumFourCCCodes; // number of supported FOURCC codes
743	lpDDDriverCaps->dwRops[DD_ROP_SPACE]; // supported raster ops
744	lpDDDriverCaps->dwSVBCaps = DDCAPS_BLT \| // We do blitting
745	DDCAPS_BLTCOLORFILL \| // We do colorfills
746	DDCAPS_COLORKEY \| // We support Colorkeying
747	DDCAPS_COLORKEYHWASSIST;
748	lpDDDriverCaps->dwSVBCKeyCaps = DDCKEYCAPS_SRCBLT; // Only source transparent blitting
749	lpDDDriverCaps->dwSVBFXCaps; // .
750	lpDDDriverCaps->dwSVBRops[DD_ROP_SPACE]; // .
751	lpDDDriverCaps->dwVSBCaps = DDCAPS_BLT \| // We do blitting
752	DDCAPS_BLTCOLORFILL \| // We do colorfills
753	DDCAPS_COLORKEY \| // We support Colorkeying
754	DDCAPS_COLORKEYHWASSIST;
755	lpDDDriverCaps->dwVSBCKeyCaps = DDCKEYCAPS_SRCBLT; // Only source transparent blitting
756	lpDDDriverCaps->dwVSBFXCaps; // .
757	lpDDDriverCaps->dwVSBRops[DD_ROP_SPACE]; // .
758	lpDDDriverCaps->dwSSBCaps = DDCAPS_BLT \| // We do blitting
759	DDCAPS_BLTCOLORFILL \| // We do colorfills
760	DDCAPS_COLORKEY \| // We support Colorkeying
761	DDCAPS_COLORKEYHWASSIST;
762	lpDDDriverCaps->dwSSBCKeyCaps = DDCKEYCAPS_SRCBLT; // Only source transparent blitting
763	lpDDDriverCaps->dwSSBFXCaps; // .
764	lpDDDriverCaps->dwSSBRops[DD_ROP_SPACE]; // .
765	lpDDDriverCaps->dwSVBCaps2 = DDCAPS2_CANRENDERWINDOWED \| // Better check for Voodoo ?!
766	DDCAPS2_COPYFOURCC \| // yepp memcpy will do this
767	DDCAPS2_WIDESURFACES; // Any size you want!
768	lpDDDriverCaps->dwNLVBCaps = DDCAPS_BLT \| // We do blitting
769	DDCAPS_BLTCOLORFILL \| // We do colorfills
770	DDCAPS_COLORKEY \| // We support Colorkeying
771	DDCAPS_COLORKEYHWASSIST;
772	lpDDDriverCaps->dwNLVBCaps2 = DDCAPS2_CANRENDERWINDOWED \| // Better check for Voodoo ?!
773	DDCAPS2_COPYFOURCC \| // yepp memcpy will do this
774	DDCAPS2_WIDESURFACES; // Any size you want!
775	lpDDDriverCaps->dwNLVBCKeyCaps = DDCKEYCAPS_SRCBLT; // Only source transparent blitting
776	lpDDDriverCaps->dwNLVBFXCaps; // .
777	lpDDDriverCaps->dwNLVBRops[DD_ROP_SPACE];// .
778	DDSCAPS2 ddsCaps; // general surface caps
779
780	}
781
782	if(NULL!=lpDDHELCaps)
783	{
784	// Caler wants HEL Caps
785	if(sizeof(DDCAPS)!=lpDDHELCaps->dwSize)
786	return(DDERR_INVALIDPARAMS);
787
788	}
789
790	return(DD_OK);
791	}
792	//******************************************************************************
793	//******************************************************************************
794	HRESULT __stdcall DrawGetDisplayMode(THIS This, LPDDSURFACEDESC lpDDSurfaceDesc)
795	{
796	OS2IDirectDraw me = (OS2IDirectDraw )This;
797	#ifdef DEBUG
798	WriteLog("GetDisplayMode\n");
799	#endif
800
801	// Check Parameter
802	if(NULL==lpDDSurfaceDesc)
803	return(DDERR_INVALIDPARAMS);
804
805	if(sizeof(DDSURFACEDESC)!=lpDDSurfaceDesc->dwSize)
806	return(DDERR_INVALIDPARAMS);
807
808	// We report back the DIVE caps. maybe we should set up a local DDSURFACEDESC
809	// for the object so we can change the values when we switch modes (or say so)
810	// as a program may use this function to check the values after a mode change
811	// An other reason to to so is Voodoo supports maybe more functions
812
813	// Tell what we report
814	lpDDSurfaceDesc->dwFlags = DDSD_HEIGHT \| DDSD_WIDTH \| DDSD_PIXELFORMAT;
815	lpDDSurfaceDesc->dwHeight = me->dCaps.ulHorizontalResolution;
816	lpDDSurfaceDesc->dwWidth = me->dCaps.ulVerticalResolution;
817	// Set the PixelFormat
818	lpDDSurfaceDesc->ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
819
820	lpDDSurfaceDesc->ddpfPixelFormat.dwFourCC = me->dCaps.fccColorEncoding;
821	lpDDSurfaceDesc->ddpfPixelFormat.dwRGBBitCount = me->dCaps.ulDepth;
822	lpDDSurfaceDesc->ddpfPixelFormat.dwRGBAlphaBitMask = 0; // No Alpha support
823	switch(me->dCaps.ulDepth)
824	{
825	case 4:
826	// Assume that no one will run OS/2 PM with less then 16 colors and try
827	// to start a DirectX program ;)
828	lpDDSurfaceDesc->ddpfPixelFormat.dwFlags = DDPF_RGB \| DDPF_PALETTEINDEXED4;
829	lpDDSurfaceDesc->ddpfPixelFormat.dwRBitMask = 0;
830	lpDDSurfaceDesc->ddpfPixelFormat.dwGBitMask = 0;
831	lpDDSurfaceDesc->ddpfPixelFormat.dwBBitMask = 0;
832	break;
833	case 8:
834	lpDDSurfaceDesc->ddpfPixelFormat.dwFlags = DDPF_RGB \| DDPF_PALETTEINDEXED8 \|
835	DDPF_FOURCC;
836	lpDDSurfaceDesc->ddpfPixelFormat.dwRBitMask = 0;
837	lpDDSurfaceDesc->ddpfPixelFormat.dwGBitMask = 0;
838	lpDDSurfaceDesc->ddpfPixelFormat.dwBBitMask = 0;
839	break;
840	case 15:
841	case 16:
842	lpDDSurfaceDesc->ddpfPixelFormat.dwRGBBitCount = 16; // No sure about 15Bit modes
843	lpDDSurfaceDesc->ddpfPixelFormat.dwFlags = DDPF_RGB \| DDPF_FOURCC;
844	if (FOURCC_R555 == me->dCaps.fccColorEncoding)
845	{
846	lpDDSurfaceDesc->ddpfPixelFormat.dwRBitMask = 0x00007C00;
847	lpDDSurfaceDesc->ddpfPixelFormat.dwGBitMask = 0x000003E0;
848	lpDDSurfaceDesc->ddpfPixelFormat.dwBBitMask = 0x0000001F;
849	}
850	else
851	{
852	if(FOURCC_R565 == me->dCaps.fccColorEncoding)
853	{
854	lpDDSurfaceDesc->ddpfPixelFormat.dwRBitMask = 0x0000F800;
855	lpDDSurfaceDesc->ddpfPixelFormat.dwGBitMask = 0x000007E0;
856	lpDDSurfaceDesc->ddpfPixelFormat.dwBBitMask = 0x0000001F;
857	}
858	else
859	{
860	// R664
861	lpDDSurfaceDesc->ddpfPixelFormat.dwRBitMask = 0x0000F800;
862	lpDDSurfaceDesc->ddpfPixelFormat.dwGBitMask = 0x000003F0;
863	lpDDSurfaceDesc->ddpfPixelFormat.dwBBitMask = 0x0000000F;
864	}
865	}
866	break;
867	case 24:
868	lpDDSurfaceDesc->ddpfPixelFormat.dwFlags = DDPF_RGB \| DDPF_FOURCC;
869	if(FOURCC_RGB3 == me->dCaps.fccColorEncoding)
870	{
871	lpDDSurfaceDesc->ddpfPixelFormat.dwRBitMask = 0x00FF0000;
872	lpDDSurfaceDesc->ddpfPixelFormat.dwGBitMask = 0x0000FF00;
873	lpDDSurfaceDesc->ddpfPixelFormat.dwBBitMask = 0x000000FF;
874	}
875	else
876	{
877	// BGR3
878	lpDDSurfaceDesc->ddpfPixelFormat.dwRBitMask = 0x000000FF;
879	lpDDSurfaceDesc->ddpfPixelFormat.dwGBitMask = 0x0000FF00;
880	lpDDSurfaceDesc->ddpfPixelFormat.dwBBitMask = 0x00FF0000;
881	}
882	break;
883	case 32:
884	lpDDSurfaceDesc->ddpfPixelFormat.dwFlags = DDPF_RGB \| DDPF_FOURCC;
885	if(FOURCC_RGB4 == me->dCaps.fccColorEncoding)
886	{
887	lpDDSurfaceDesc->ddpfPixelFormat.dwRBitMask = 0x00FF0000;
888	lpDDSurfaceDesc->ddpfPixelFormat.dwGBitMask = 0x0000FF00;
889	lpDDSurfaceDesc->ddpfPixelFormat.dwBBitMask = 0x000000FF;
890	}
891	else
892	{
893	// BGR4
894	lpDDSurfaceDesc->ddpfPixelFormat.dwRBitMask = 0x000000FF;
895	lpDDSurfaceDesc->ddpfPixelFormat.dwGBitMask = 0x0000FF00;
896	lpDDSurfaceDesc->ddpfPixelFormat.dwBBitMask = 0x00FF0000;
897	}
898	break;
899	default:
900	#ifdef DEBUG
901	WriteLog("Unsupported mode\n");
902	#endif
903	return(DDERR_UNSUPPORTEDMODE);
904	}
905
906	return(DD_OK);
907	}
908	//******************************************************************************
909	//******************************************************************************
910	HRESULT __stdcall DrawGetDisplayMode4(THIS This, LPDDSURFACEDESC2 lpDDSurfaceDesc2)
911	{
912	OS2IDirectDraw me = (OS2IDirectDraw )This;
913	#ifdef DEBUG
914	WriteLog("GetDisplayMode\n");
915	#endif
916
917	// Check Parameter
918	if(NULL==lpDDSurfaceDesc2)
919	return(DDERR_INVALIDPARAMS);
920
921	if(sizeof(DDSURFACEDESC)!=lpDDSurfaceDesc2->dwSize)
922	return(DDERR_INVALIDPARAMS);
923
924	// We report back the DIVE caps. maybe we should set up a local DDSURFACEDESC
925	// for the object so we can change the values when we switch modes (or say so)
926	// as a program may use this function to check the values after a mode change
927	// An other reason to to so is Voodoo supports maybe more functions
928
929	// Tell what we report
930	lpDDSurfaceDesc2->dwFlags = DDSD_HEIGHT \| DDSD_WIDTH \| DDSD_PIXELFORMAT;
931	lpDDSurfaceDesc2->dwHeight = me->dCaps.ulHorizontalResolution;
932	lpDDSurfaceDesc2->dwWidth = me->dCaps.ulVerticalResolution;
933	// Set the PixelFormat
934	lpDDSurfaceDesc2->ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
935
936	lpDDSurfaceDesc2->ddpfPixelFormat.dwFourCC = me->dCaps.fccColorEncoding;
937	lpDDSurfaceDesc2->ddpfPixelFormat.dwRGBBitCount = me->dCaps.ulDepth;
938	lpDDSurfaceDesc2->ddpfPixelFormat.dwRGBAlphaBitMask = 0; // No Alpha support
939	switch(me->dCaps.ulDepth)
940	{
941	case 4:
942	// Assume that no one will run OS/2 PM with less then 16 colors and try
943	// to start a DirectX program ;)
944	lpDDSurfaceDesc2->ddpfPixelFormat.dwFlags = DDPF_RGB \| DDPF_PALETTEINDEXED4;
945	lpDDSurfaceDesc2->ddpfPixelFormat.dwRBitMask = 0;
946	lpDDSurfaceDesc2->ddpfPixelFormat.dwGBitMask = 0;
947	lpDDSurfaceDesc2->ddpfPixelFormat.dwBBitMask = 0;
948	break;
949	case 8:
950	lpDDSurfaceDesc2->ddpfPixelFormat.dwFlags = DDPF_RGB \| DDPF_PALETTEINDEXED8 \|
951	DDPF_FOURCC;
952	lpDDSurfaceDesc2->ddpfPixelFormat.dwRBitMask = 0;
953	lpDDSurfaceDesc2->ddpfPixelFormat.dwGBitMask = 0;
954	lpDDSurfaceDesc2->ddpfPixelFormat.dwBBitMask = 0;
955	break;
956	case 15:
957	case 16:
958	lpDDSurfaceDesc2->ddpfPixelFormat.dwRGBBitCount = 16; // No sure about 15Bit modes
959	lpDDSurfaceDesc2->ddpfPixelFormat.dwFlags = DDPF_RGB \| DDPF_FOURCC;
960	if (FOURCC_R555 == me->dCaps.ulDepth)
961	{
962	lpDDSurfaceDesc2->ddpfPixelFormat.dwRBitMask = 0x00007C00;
963	lpDDSurfaceDesc2->ddpfPixelFormat.dwGBitMask = 0x000003E0;
964	lpDDSurfaceDesc2->ddpfPixelFormat.dwBBitMask = 0x0000001F;
965	}
966	else
967	{
968	if(FOURCC_R565 == me->dCaps.fccColorEncoding)
969	{
970	lpDDSurfaceDesc2->ddpfPixelFormat.dwRBitMask = 0x0000F800;
971	lpDDSurfaceDesc2->ddpfPixelFormat.dwGBitMask = 0x000007E0;
972	lpDDSurfaceDesc2->ddpfPixelFormat.dwBBitMask = 0x0000001F;
973	}
974	else
975	{
976	// R664
977	lpDDSurfaceDesc2->ddpfPixelFormat.dwRBitMask = 0x0000F800;
978	lpDDSurfaceDesc2->ddpfPixelFormat.dwGBitMask = 0x000003F0;
979	lpDDSurfaceDesc2->ddpfPixelFormat.dwBBitMask = 0x0000000F;
980	}
981	}
982	break;
983	case 24:
984	lpDDSurfaceDesc2->ddpfPixelFormat.dwFlags = DDPF_RGB \| DDPF_FOURCC;
985	if(FOURCC_RGB3 == me->dCaps.fccColorEncoding)
986	{
987	lpDDSurfaceDesc2->ddpfPixelFormat.dwRBitMask = 0x00FF0000;
988	lpDDSurfaceDesc2->ddpfPixelFormat.dwGBitMask = 0x0000FF00;
989	lpDDSurfaceDesc2->ddpfPixelFormat.dwBBitMask = 0x000000FF;
990	}
991	else
992	{
993	// BGR3
994	lpDDSurfaceDesc2->ddpfPixelFormat.dwRBitMask = 0x000000FF;
995	lpDDSurfaceDesc2->ddpfPixelFormat.dwGBitMask = 0x0000FF00;
996	lpDDSurfaceDesc2->ddpfPixelFormat.dwBBitMask = 0x00FF0000;
997	}
998	break;
999	case 32:
1000	lpDDSurfaceDesc2->ddpfPixelFormat.dwFlags = DDPF_RGB \| DDPF_FOURCC;
1001	if(FOURCC_RGB4 == me->dCaps.fccColorEncoding)
1002	{
1003	lpDDSurfaceDesc2->ddpfPixelFormat.dwRBitMask = 0x00FF0000;
1004	lpDDSurfaceDesc2->ddpfPixelFormat.dwGBitMask = 0x0000FF00;
1005	lpDDSurfaceDesc2->ddpfPixelFormat.dwBBitMask = 0x000000FF;
1006	}
1007	else
1008	{
1009	// BGR4
1010	lpDDSurfaceDesc2->ddpfPixelFormat.dwRBitMask = 0x000000FF;
1011	lpDDSurfaceDesc2->ddpfPixelFormat.dwGBitMask = 0x0000FF00;
1012	lpDDSurfaceDesc2->ddpfPixelFormat.dwBBitMask = 0x00FF0000;
1013	}
1014	break;
1015	default:
1016	#ifdef DEBUG
1017	WriteLog("Unsupported mode\n");
1018	#endif
1019	return(DDERR_UNSUPPORTEDMODE);
1020	}
1021
1022	return(DD_OK);
1023	}
1024	//******************************************************************************
1025	//******************************************************************************
1026	HRESULT __stdcall DrawGetFourCCCodes(THIS, LPDWORD lpNumCodes, LPDWORD lpCodes)
1027	{
1028	DWORD dwFCC[3] = {FOURCC_LUT8,FOURCC_R565,FOURCC_RGB3};
1029	#ifdef DEBUG
1030	WriteLog("GetFourCCCodes\n");
1031	#endif
1032
1033	if(NULL==lpNumCodes)
1034	return(DDERR_INVALIDPARAMS);
1035
1036	if(NULL==lpCodes)
1037	{
1038	*lpNumCodes = 3; // LUT8, R565, RGB3 are the FourCC we support for now
1039	}
1040	else
1041	{
1042	for(int i=0;(i<3)&&(i<*lpNumCodes);i++)
1043	{
1044	*lpCodes = dwFCC[i];
1045	lpCodes +=4;
1046	}
1047	if(*lpNumCodes < 3)
1048	*lpNumCodes = 3;
1049	}
1050	return(DD_OK);
1051	}
1052	//******************************************************************************
1053	//******************************************************************************
1054	HRESULT __stdcall DrawGetGDISurface(THIS, LPDIRECTDRAWSURFACE FAR *)
1055	{
1056	#ifdef DEBUG
1057	WriteLog("GetGDISurface\n");
1058	#endif
1059
1060	return(DD_OK);
1061	}
1062	//******************************************************************************
1063	//******************************************************************************
1064	HRESULT __stdcall DrawGetGDISurface4(THIS, LPDIRECTDRAWSURFACE4 FAR *)
1065	{
1066	#ifdef DEBUG
1067	WriteLog("GetGDISurface\n");
1068	#endif
1069
1070	return(DD_OK);
1071	}
1072	//******************************************************************************
1073	//******************************************************************************
1074	HRESULT __stdcall DrawGetMonitorFrequency(THIS This, LPDWORD lpdwFreq)
1075	{
1076	ULONG ulTime1, ulTime2;
1077	DWORD dwFlags = DDWAITVB_BLOCKBEGIN;
1078	#ifdef DEBUG
1079	WriteLog("GetMonitorFrequency\n");
1080	#endif
1081	if(NULL==lpdwFreq)
1082	return(DDERR_INVALIDPARAMS);
1083
1084	if(DD_OK==DrawWaitForVerticalBlank(This, dwFlags, 0))
1085	{
1086	ulTime1 = GetTickCount();
1087	// Timer has an accuracy of 4 ms so call it al least 4 times
1088	DrawWaitForVerticalBlank(This, dwFlags, 0);
1089	DrawWaitForVerticalBlank(This, dwFlags, 0);
1090	DrawWaitForVerticalBlank(This, dwFlags, 0);
1091	DrawWaitForVerticalBlank(This, dwFlags, 0);
1092	ulTime2 = GetTickCount();
1093	ulTime2 -= ulTime1;
1094	if(ulTime2) // paranoid check to avoid DIV0
1095	*lpdwFreq = 4000 / ulTime2;
1096	else
1097	*lpdwFreq = 70;
1098	}
1099	else
1100	{
1101	// Assume 70 Hz maybe better return DDERR_UNSUPPORTED if this function isn't mandatory
1102	*lpdwFreq = 70;
1103	}
1104	return(DD_OK);
1105	}
1106	//******************************************************************************
1107	//******************************************************************************
1108	HRESULT __stdcall DrawGetScanLine(THIS, LPDWORD lpdwLine)
1109	{
1110	BOOL bVertBlank;
1111	#ifdef DEBUG
1112	WriteLog("GetScanLine\n");
1113	#endif
1114	// ToDO find a way to get this position, so for now simply return DDERR_UNSUPPORTED
1115	// as we indicated in DDCAPS we don't support this.
1116
1117	return(DDERR_UNSUPPORTED);
1118
1119	//the following code could be used if we implement this
1120	/*
1121	if(NULL==lpdwLine)
1122	return(DDERR_INVALIDPARAMS);
1123	DrawGetVertcalBlackStatus(This,&bVertBlank);
1124	if(bVertBlank)
1125	return (DDERR_VERTICALBLANKINPROGRESS);
1126	*lpdwLine = GetLine(); // GetLine would be the function which gets us the line
1127	return(DD_OK);
1128	*/
1129	}
1130	//******************************************************************************
1131	//******************************************************************************
1132	HRESULT __stdcall DrawGetVerticalBlankStatus(THIS , LPBOOL lpbIsInVB)
1133	{
1134	#ifdef DEBUG
1135	WriteLog("GetVerticalBlankStatus\n");
1136	#endif
1137	if(NULL==lpbIsInVB)
1138	return(DDERR_INVALIDPARAMS);
1139	if(0==io_init1()) // try to get IOPL for the thread
1140	{
1141	*lpbIsInVB = (c_inb1(0x3da)&0x08)!=0;
1142	io_exit1(); // reset IOPL
1143	return(DD_OK);
1144	}
1145
1146	return(DDERR_UNSUPPORTED);
1147	}
1148	//******************************************************************************
1149	//******************************************************************************
1150	HRESULT __stdcall DrawInitialize(THIS, GUID FAR *)
1151	{
1152	#ifdef DEBUG
1153	WriteLog("Initialize\n");
1154	#endif
1155
1156	return(DD_OK);
1157	}
1158	//******************************************************************************
1159	//******************************************************************************
1160	HRESULT __stdcall DrawRestoreDisplayMode(THIS)
1161	{
1162	#ifdef DEBUG
1163	WriteLog("RestoreDisplayMod\n");
1164	#endif
1165
1166	return(DD_OK);
1167	}
1168	//******************************************************************************
1169	//******************************************************************************
1170	HRESULT __stdcall DrawSetCooperativeLevel(THIS This, HWND hwndClient, DWORD dwFlags)
1171	{
1172	OS2IDirectDraw me = (OS2IDirectDraw )This;
1173
1174	#ifdef DEBUG
1175	WriteLog("SetCooperativeLevel: hwnd %X, Flags %X\n", hwndClient, dwFlags);
1176	#endif
1177
1178	me->hwndClient = hwndClient;
1179	#if 0
1180	OS2DDSubclassWindow(hwndClient);
1181	#endif
1182	return(DD_OK);
1183	}
1184	//******************************************************************************
1185	//Backwards compatibility, what's that??
1186	//******************************************************************************
1187	HRESULT __stdcall DrawSetDisplayMode2(THIS This, DWORD dwWidth, DWORD dwHeight,
1188	DWORD dwBPP, DWORD dwRefreshRate,
1189	DWORD dwFlags)
1190	{
1191	OS2IDirectDraw me = (OS2IDirectDraw )This;
1192
1193	#ifdef DEBUG
1194	WriteLog("SetDisplayMode2 to %dx%d with %d bits colors\n", dwWidth, dwHeight, dwBPP);
1195	#endif
1196	me->screenwidth = dwWidth;
1197	me->screenheight = dwHeight;
1198	me->screenbpp = dwBPP;
1199	// _interrupt(3);
1200	return(DD_OK);
1201	}
1202	//******************************************************************************
1203	//******************************************************************************
1204	HRESULT __stdcall DrawSetDisplayMode(THIS This, DWORD dwWidth, DWORD dwHeight,
1205	DWORD dwBPP)
1206	{
1207	OS2IDirectDraw me = (OS2IDirectDraw )This;
1208
1209	#ifdef DEBUG
1210	WriteLog("SetDisplayMode to %dx%d with %d bits colors\n", dwWidth, dwHeight, dwBPP);
1211	#endif
1212	me->screenwidth = dwWidth;
1213	me->screenheight = dwHeight;
1214	me->screenbpp = dwBPP;
1215	// _interrupt(3);
1216	return(DD_OK);
1217	}
1218	//******************************************************************************
1219	//******************************************************************************
1220	HRESULT __stdcall DrawWaitForVerticalBlank(THIS, DWORD dwFlags, HANDLE hEvent)
1221	{
1222	HRESULT rc;
1223	#ifdef DEBUG
1224	WriteLog("WaitForVerticalBlank\n");
1225	#endif
1226
1227	if(DDWAITVB_BLOCKBEGINEVENT == dwFlags) // This parameter isn't support in DX
1228	return (DDERR_UNSUPPORTED);
1229
1230	if(io_init1()) // try to get IOPL for the thread
1231	return (DDERR_UNSUPPORTED); // we failed so return error that we don't support this
1232
1233	// AT this point we should have IOPL so lets use it!
1234
1235	rc = DDERR_INVALIDPARAMS; // set returnvalue to fail
1236
1237	if(DDWAITVB_BLOCKBEGIN == dwFlags)
1238	{
1239	while ((c_inb1(0x3da)&0x08)!=0); // Wait for end of vert. retrace if one is running
1240	while ((c_inb1(0x3da)&0x08)==0); // Wait for new start of retrace
1241	rc = DD_OK;
1242	}
1243
1244	if(DDWAITVB_BLOCKEND == dwFlags)
1245	{
1246	rc = DD_OK;
1247	if((c_inb1(0x3da)&0x08)!=0) // Are we in a vert. retrace
1248	{
1249	while ((c_inb1(0x3da)&0x08)!=0); // Wait for end of retrace
1250	}
1251	else
1252	{
1253	while ((c_inb1(0x3da)&0x08)==0); // Wait for new start of retrace
1254	while ((c_inb1(0x3da)&0x08)!=0); // Wait for end of vert. retrace
1255	}
1256
1257	}
1258
1259	io_exit1();
1260
1261	return (rc);
1262
1263	}
1264	//******************************************************************************
1265	//* Added in the v2 interface *
1266	//******************************************************************************
1267	HRESULT __stdcall DrawGetAvailableVidMem(THIS, LPDDSCAPS lpDDSCaps,
1268	LPDWORD lpdwTotal, LPDWORD lpdwFree)
1269	{
1270	#ifdef DEBUG
1271	WriteLog("GetAvailableVidMem\n");
1272	#endif
1273
1274	// Check parameters
1275	if(NULL==lpDDSCaps)
1276	return(DDERR_INVALIDPARAMS);
1277
1278	if((NULL==lpdwTotal)&&(NULL==lpdwFree))
1279	return(DDERR_INVALIDPARAMS);
1280
1281	if(NULL!=lpdwTotal)
1282	lpdwTotal = 2048 1024;
1283
1284	if(NULL!=lpdwFree)
1285	lpdwFree = 2048 1024;
1286
1287	return(DD_OK);
1288	}
1289	//******************************************************************************
1290	//
1291	//******************************************************************************
1292	HRESULT __stdcall DrawGetAvailableVidMem4(THIS, LPDDSCAPS2 lpDDSCaps2,
1293	LPDWORD lpdwTotal, LPDWORD lpdwFree)
1294	{
1295	#ifdef DEBUG
1296	WriteLog("GetAvailableVidMem\n");
1297	#endif
1298
1299	// Check parameters
1300	if(NULL==lpDDSCaps2)
1301	return(DDERR_INVALIDPARAMS);
1302
1303	if((NULL==lpdwTotal)&&(NULL==lpdwFree))
1304	return(DDERR_INVALIDPARAMS);
1305
1306	if(NULL!=lpdwTotal)
1307	lpdwTotal = 2048 1024;
1308
1309	if(NULL!=lpdwFree)
1310	lpdwFree = 2048 1024;
1311
1312	return(DD_OK);
1313	}
1314	//******************************************************************************
1315	//* Added in the v4 interface *
1316	//******************************************************************************
1317	HRESULT __stdcall DrawGetSurfaceFromDC(THIS, HDC hdc, LPDIRECTDRAWSURFACE4 *)
1318	{
1319	#ifdef DEBUG
1320	WriteLog("GetSurfaceFromDC Unimplemented Stub\n");
1321	#endif
1322
1323	return(DD_OK);
1324	}
1325	//******************************************************************************
1326	//******************************************************************************
1327	HRESULT __stdcall DrawRestoreAllSurfaces(THIS)
1328	{
1329	#ifdef DEBUG
1330	WriteLog("RestoreAllSurfaces\n");
1331	#endif
1332
1333	return(DD_OK);
1334	}
1335	//******************************************************************************
1336	//******************************************************************************
1337	HRESULT __stdcall DrawTestCooperativeLevel(THIS)
1338	{
1339	#ifdef DEBUG
1340	WriteLog("TestCooperativeLevel\n");
1341	#endif
1342
1343	return(DD_OK);
1344	}
1345	//******************************************************************************
1346	//******************************************************************************
1347	HRESULT __stdcall DrawGetDeviceIdentifier( THIS, LPDDDEVICEIDENTIFIER lpdddi,
1348	DWORD dwFlags)
1349	{
1350	#ifdef DEBUG
1351	WriteLog("GetDeviceIdentifier Flags = %d\n",dwFlags);
1352	#endif
1353	if(NULL==lpdddi)
1354	return DDERR_INVALIDPARAMS;
1355
1356	memset( lpdddi,
1357	0,
1358	sizeof(DDDEVICEIDENTIFIER));
1359	// ToDo: Cretae a GUID and put some better data inside
1360	strcpy( lpdddi->szDriver,
1361	"OS/2 DIVE Driver");
1362	strcpy( lpdddi->szDescription,
1363	"ODIN DD Emulation Driver");
1364	return(DD_OK);
1365	}
1366	//******************************************************************************
1367	//******************************************************************************
1368	VOID OS2IDirectDraw::SwitchDisplay(HWND hwnd)
1369	{
1370	DWORD dwVType, dwVSize;
1371	HKEY hkDirectDraw2;
1372
1373	if (bScale)
1374	{
1375	if (ERROR_SUCCESS==RegOpenKeyA(HKEY_LOCAL_MACHINE,KEY_DIRECT2DRAW,&hkDirectDraw2))
1376	{
1377	dwVSize = 4;
1378	dwVType = REG_DWORD;
1379	if (ERROR_SUCCESS!=RegQueryValueExA( hkDirectDraw2, "Fullscreen", NULL, &dwVType,
1380	(LPBYTE)&bScale, &dwVSize))
1381	bScale = FALSE;
1382	}
1383	else
1384	bScale = FALSE;
1385	}
1386	}
1387	//******************************************************************************
1388	//******************************************************************************
1389

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