2 * DirectDraw DGA2 interface
4 * Copyright 2001 TransGaming Technologies, Inc.
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #ifdef HAVE_LIBXXF86DGA2
25 #define NONAMELESSUNION
26 #define NONAMELESSSTRUCT
28 #include <X11/extensions/xf86dga.h>
37 #include "wine/debug.h"
39 WINE_DEFAULT_DEBUG_CHANNEL(x11drv
);
43 LPDDHALMODEINFO xf86dga2_modes
;
44 unsigned xf86dga2_mode_count
;
45 static XDGAMode
* modes
;
46 static int dga_event
, dga_error
;
48 static void convert_mode(XDGAMode
*mode
, LPDDHALMODEINFO info
)
50 info
->dwWidth
= mode
->viewportWidth
;
51 info
->dwHeight
= mode
->viewportHeight
;
52 info
->wRefreshRate
= mode
->verticalRefresh
;
53 info
->lPitch
= mode
->bytesPerScanline
;
54 info
->dwBPP
= (mode
->depth
< 24) ? mode
->depth
: mode
->bitsPerPixel
;
55 info
->wFlags
= (mode
->depth
== 8) ? DDMODEINFO_PALETTIZED
: 0;
56 info
->dwRBitMask
= mode
->redMask
;
57 info
->dwGBitMask
= mode
->greenMask
;
58 info
->dwBBitMask
= mode
->blueMask
;
59 info
->dwAlphaBitMask
= 0;
60 TRACE(" width=%ld, height=%ld, bpp=%ld, refresh=%d\n",
61 info
->dwWidth
, info
->dwHeight
, info
->dwBPP
, info
->wRefreshRate
);
64 static int DGA2ErrorHandler(Display
*dpy
, XErrorEvent
*event
, void *arg
)
69 void X11DRV_XF86DGA2_Init(void)
71 int nmodes
, major
, minor
, i
;
76 if (xf86dga2_modes
) return; /* already initialized? */
78 /* if in desktop mode, don't use DGA */
79 if (root_window
!= DefaultRootWindow(gdi_display
)) return;
84 ok
= XDGAQueryExtension(gdi_display
, &dga_event
, &dga_error
);
87 X11DRV_expect_error(gdi_display
, DGA2ErrorHandler
, NULL
);
88 ok
= XDGAQueryVersion(gdi_display
, &major
, &minor
);
89 if (X11DRV_check_error()) ok
= FALSE
;
94 if (major
< 2) return; /* only bother with DGA 2+ */
96 /* test that it works */
98 X11DRV_expect_error(gdi_display
, DGA2ErrorHandler
, NULL
);
99 ok
= XDGAOpenFramebuffer(gdi_display
, DefaultScreen(gdi_display
));
100 if (X11DRV_check_error()) ok
= FALSE
;
103 XDGACloseFramebuffer(gdi_display
, DefaultScreen(gdi_display
));
105 modes
= XDGAQueryModes(gdi_display
, DefaultScreen(gdi_display
), &nmodes
);
106 if (!modes
) ok
= FALSE
;
108 else WARN("disabling XF86DGA2 (insufficient permissions?)\n");
112 TRACE("DGA modes: count=%d\n", nmodes
);
114 xf86dga2_mode_count
= nmodes
+1;
115 xf86dga2_modes
= HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY
, sizeof(DDHALMODEINFO
) * (nmodes
+1));
117 /* make dummy mode for exiting DGA */
118 memset(&xf86dga2_modes
[0], 0, sizeof(xf86dga2_modes
[0]));
120 /* convert modes to DDHALMODEINFO format */
121 for (i
=0; i
<nmodes
; i
++)
122 convert_mode(&modes
[i
], &xf86dga2_modes
[i
+1]);
124 TRACE("Enabling XF86DGA2 mode\n");
127 void X11DRV_XF86DGA2_Cleanup(void)
129 if (modes
) TSXFree(modes
);
132 static XDGADevice
*dga_dev
;
134 static VIDMEM dga_mem
= {
135 VIDMEM_ISRECTANGULAR
| VIDMEM_ISHEAP
138 static DWORD PASCAL
X11DRV_XF86DGA2_SetMode(LPDDHAL_SETMODEDATA data
)
140 LPDDRAWI_DIRECTDRAW_LCL ddlocal
= data
->lpDD
->lpExclusiveOwner
;
142 Display
*display
= gdi_display
;
144 data
->ddRVal
= DD_OK
;
146 if (data
->dwModeIndex
) {
148 XDGADevice
*new_dev
= NULL
;
149 if (dga_dev
|| XDGAOpenFramebuffer(display
, DefaultScreen(display
)))
150 new_dev
= XDGASetMode(display
, DefaultScreen(display
), modes
[data
->dwModeIndex
-1].num
);
152 XDGASetViewport(display
, DefaultScreen(display
), 0, 0, XDGAFlipImmediate
);
154 VirtualFree(dga_dev
->data
, 0, MEM_RELEASE
);
157 XDGASelectInput(display
, DefaultScreen(display
),
158 KeyPressMask
|KeyReleaseMask
|
159 ButtonPressMask
|ButtonReleaseMask
|
161 X11DRV_EVENT_SetDGAStatus((HWND
)ddlocal
->hWnd
, dga_event
);
162 X11DRV_EVENT_SetInputMethod(X11DRV_INPUT_RELATIVE
);
165 vram
= dga_dev
->mode
.bytesPerScanline
* dga_dev
->mode
.imageHeight
;
166 VirtualAlloc(dga_dev
->data
, vram
, MEM_RESERVE
|MEM_SYSTEM
, PAGE_READWRITE
);
167 dga_mem
.fpStart
= (FLATPTR
)dga_dev
->data
;
168 dga_mem
.u1
.dwWidth
= dga_dev
->mode
.bytesPerScanline
;
169 dga_mem
.u2
.dwHeight
= dga_dev
->mode
.imageHeight
;
170 X11DRV_DDHAL_SwitchMode(data
->dwModeIndex
, dga_dev
->data
, &dga_mem
);
171 X11DRV_DD_IsDirect
= TRUE
;
175 if (!dga_dev
) XDGACloseFramebuffer(display
, DefaultScreen(display
));
176 data
->ddRVal
= DDERR_GENERIC
;
181 X11DRV_DD_IsDirect
= FALSE
;
182 X11DRV_DDHAL_SwitchMode(0, NULL
, NULL
);
183 XDGASetMode(display
, DefaultScreen(display
), 0);
184 VirtualFree(dga_dev
->data
, 0, MEM_RELEASE
);
185 X11DRV_EVENT_SetInputMethod(X11DRV_INPUT_ABSOLUTE
);
186 X11DRV_EVENT_SetDGAStatus(0, -1);
188 XDGACloseFramebuffer(display
, DefaultScreen(display
));
192 return DDHAL_DRIVER_HANDLED
;
195 static LPDDHAL_CREATESURFACE X11DRV_XF86DGA2_old_create_surface
;
197 static DWORD PASCAL
X11DRV_XF86DGA2_CreateSurface(LPDDHAL_CREATESURFACEDATA data
)
199 LPDDRAWI_DDRAWSURFACE_LCL lcl
= *data
->lplpSList
;
200 LPDDRAWI_DDRAWSURFACE_GBL gbl
= lcl
->lpGbl
;
201 LPDDSURFACEDESC2 desc
= (LPDDSURFACEDESC2
)data
->lpDDSurfaceDesc
;
202 HRESULT hr
= DDHAL_DRIVER_NOTHANDLED
;
204 if (X11DRV_XF86DGA2_old_create_surface
)
205 hr
= X11DRV_XF86DGA2_old_create_surface(data
);
207 if (desc
->ddsCaps
.dwCaps
& (DDSCAPS_PRIMARYSURFACE
| DDSCAPS_BACKBUFFER
)) {
208 gbl
->fpVidMem
= 0; /* tell ddraw to allocate the memory */
209 hr
= DDHAL_DRIVER_HANDLED
;
214 static DWORD PASCAL
X11DRV_XF86DGA2_CreatePalette(LPDDHAL_CREATEPALETTEDATA data
)
216 Display
*display
= gdi_display
;
218 data
->lpDDPalette
->u1
.dwReserved1
= XDGACreateColormap(display
, DefaultScreen(display
),
221 if (data
->lpColorTable
)
222 X11DRV_DDHAL_SetPalEntries(data
->lpDDPalette
->u1
.dwReserved1
, 0, 256,
224 data
->ddRVal
= DD_OK
;
225 return DDHAL_DRIVER_HANDLED
;
228 static DWORD PASCAL
X11DRV_XF86DGA2_Flip(LPDDHAL_FLIPDATA data
)
230 Display
*display
= gdi_display
;
231 if (data
->lpSurfCurr
== X11DRV_DD_Primary
) {
232 DWORD ofs
= data
->lpSurfCurr
->lpGbl
->fpVidMem
- dga_mem
.fpStart
;
234 XDGASetViewport(display
, DefaultScreen(display
),
235 (ofs
% dga_dev
->mode
.bytesPerScanline
)*8/dga_dev
->mode
.bitsPerPixel
,
236 ofs
/ dga_dev
->mode
.bytesPerScanline
,
240 data
->ddRVal
= DD_OK
;
241 return DDHAL_DRIVER_HANDLED
;
244 static DWORD PASCAL
X11DRV_XF86DGA2_SetPalette(LPDDHAL_SETPALETTEDATA data
)
246 Display
*display
= gdi_display
;
247 if ((data
->lpDDSurface
== X11DRV_DD_Primary
) &&
248 data
->lpDDPalette
&& data
->lpDDPalette
->u1
.dwReserved1
)
251 XDGAInstallColormap(display
, DefaultScreen(display
), data
->lpDDPalette
->u1
.dwReserved1
);
254 data
->ddRVal
= DD_OK
;
255 return DDHAL_DRIVER_HANDLED
;
258 int X11DRV_XF86DGA2_CreateDriver(LPDDHALINFO info
)
260 if (!xf86dga2_mode_count
) return 0; /* no DGA */
262 info
->dwNumModes
= xf86dga2_mode_count
;
263 info
->lpModeInfo
= xf86dga2_modes
;
264 info
->dwModeIndex
= 0;
266 X11DRV_XF86DGA2_old_create_surface
= info
->lpDDCallbacks
->CreateSurface
;
267 info
->lpDDCallbacks
->SetMode
= X11DRV_XF86DGA2_SetMode
;
268 info
->lpDDCallbacks
->CreateSurface
= X11DRV_XF86DGA2_CreateSurface
;
269 info
->lpDDCallbacks
->CreatePalette
= X11DRV_XF86DGA2_CreatePalette
;
270 info
->lpDDSurfaceCallbacks
->Flip
= X11DRV_XF86DGA2_Flip
;
271 info
->lpDDSurfaceCallbacks
->SetPalette
= X11DRV_XF86DGA2_SetPalette
;
275 #endif /* HAVE_LIBXXF86DGA2 */