dlls/x11drv/dga2.c

   1 /*
   2  * DirectDraw DGA2 interface
   3  *
   4  * Copyright 2001 TransGaming Technologies, Inc.
   5  *
   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.
  10  *
  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.
  15  *
  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
  19  */
  20
  21 #include "config.h"
  22
  23 #ifdef HAVE_LIBXXF86DGA2
  24
  25 #define NONAMELESSUNION
  26 #define NONAMELESSSTRUCT
  27 #include <X11/Xlib.h>
  28 #include <X11/extensions/xf86dga.h>
  29
  30 #include "x11drv.h"
  31 #include "x11ddraw.h"
  32 #include "dga2.h"
  33
  34 #include "windef.h"
  35 #include "wingdi.h"
  36 #include "ddrawi.h"
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(x11drv);
  40
  41 extern int usedga;
  42
  43 LPDDHALMODEINFO xf86dga2_modes;
  44 unsigned xf86dga2_mode_count;
  45 static XDGAMode* modes;
  46 static int dga_event, dga_error;
  47
  48 static void convert_mode(XDGAMode *mode, LPDDHALMODEINFO info)
  49 {
  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);
  62 }
  63
  64 static int DGA2ErrorHandler(Display *dpy, XErrorEvent *event, void *arg)
  65 {
  66     return 1;
  67 }
  68
  69 void X11DRV_XF86DGA2_Init(void)
  70 {
  71   int nmodes, major, minor, i;
  72   Bool ok;
  73
  74   TRACE("\n");
  75
  76   if (xf86dga2_modes) return; /* already initialized? */
  77
  78   /* if in desktop mode, don't use DGA */
  79   if (root_window != DefaultRootWindow(gdi_display)) return;
  80
  81   if (!usedga) return;
  82
  83   wine_tsx11_lock();
  84   ok = XDGAQueryExtension(gdi_display, &dga_event, &dga_error);
  85   if (ok)
  86   {
  87       X11DRV_expect_error(gdi_display, DGA2ErrorHandler, NULL);
  88       ok = XDGAQueryVersion(gdi_display, &major, &minor);
  89       if (X11DRV_check_error()) ok = FALSE;
  90   }
  91   wine_tsx11_unlock();
  92   if (!ok) return;
  93
  94   if (major < 2) return; /* only bother with DGA 2+ */
  95
  96   /* test that it works */
  97   wine_tsx11_lock();
  98   X11DRV_expect_error(gdi_display, DGA2ErrorHandler, NULL);
  99   ok = XDGAOpenFramebuffer(gdi_display, DefaultScreen(gdi_display));
 100   if (X11DRV_check_error()) ok = FALSE;
 101   if (ok)
 102   {
 103       XDGACloseFramebuffer(gdi_display, DefaultScreen(gdi_display));
 104       /* retrieve modes */
 105       modes = XDGAQueryModes(gdi_display, DefaultScreen(gdi_display), &nmodes);
 106       if (!modes) ok = FALSE;
 107   }
 108   else WARN("disabling XF86DGA2 (insufficient permissions?)\n");
 109   wine_tsx11_unlock();
 110   if (!ok) return;
 111
 112   TRACE("DGA modes: count=%d\n", nmodes);
 113
 114   xf86dga2_mode_count = nmodes+1;
 115   xf86dga2_modes = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(DDHALMODEINFO) * (nmodes+1));
 116
 117   /* make dummy mode for exiting DGA */
 118   memset(&xf86dga2_modes[0], 0, sizeof(xf86dga2_modes[0]));
 119
 120   /* convert modes to DDHALMODEINFO format */
 121   for (i=0; i<nmodes; i++)
 122     convert_mode(&modes[i], &xf86dga2_modes[i+1]);
 123
 124   TRACE("Enabling XF86DGA2 mode\n");
 125 }
 126
 127 void X11DRV_XF86DGA2_Cleanup(void)
 128 {
 129     wine_tsx11_lock();
 130     if (modes) XFree(modes);
 131     wine_tsx11_unlock();
 132 }
 133
 134 static XDGADevice *dga_dev;
 135
 136 static VIDMEM dga_mem = {
 137   VIDMEM_ISRECTANGULAR | VIDMEM_ISHEAP
 138 };
 139
 140 static DWORD PASCAL X11DRV_XF86DGA2_SetMode(LPDDHAL_SETMODEDATA data)
 141 {
 142   LPDDRAWI_DIRECTDRAW_LCL ddlocal = data->lpDD->lpExclusiveOwner;
 143   DWORD vram;
 144   Display *display = gdi_display;
 145
 146   data->ddRVal = DD_OK;
 147   wine_tsx11_lock();
 148   if (data->dwModeIndex) {
 149     /* enter DGA */
 150     XDGADevice *new_dev = NULL;
 151     if (dga_dev || XDGAOpenFramebuffer(display, DefaultScreen(display)))
 152       new_dev = XDGASetMode(display, DefaultScreen(display), modes[data->dwModeIndex-1].num);
 153     if (new_dev) {
 154       XDGASetViewport(display, DefaultScreen(display), 0, 0, XDGAFlipImmediate);
 155       if (dga_dev) {
 156         VirtualFree(dga_dev->data, 0, MEM_RELEASE);
 157         XFree(dga_dev);
 158       } else {
 159         XDGASelectInput(display, DefaultScreen(display),
 160                           KeyPressMask|KeyReleaseMask|
 161                           ButtonPressMask|ButtonReleaseMask|
 162                           PointerMotionMask);
 163         X11DRV_EVENT_SetDGAStatus((HWND)ddlocal->hWnd, dga_event);
 164         X11DRV_EVENT_SetInputMethod(X11DRV_INPUT_RELATIVE);
 165       }
 166       dga_dev = new_dev;
 167       vram = dga_dev->mode.bytesPerScanline * dga_dev->mode.imageHeight;
 168       VirtualAlloc(dga_dev->data, vram, MEM_SYSTEM, PAGE_READWRITE);
 169       dga_mem.fpStart = (FLATPTR)dga_dev->data;
 170       dga_mem.u1.dwWidth = dga_dev->mode.bytesPerScanline;
 171       dga_mem.u2.dwHeight = dga_dev->mode.imageHeight;
 172       X11DRV_DDHAL_SwitchMode(data->dwModeIndex, dga_dev->data, &dga_mem);
 173       X11DRV_DD_IsDirect = TRUE;
 174     }
 175     else {
 176       ERR("failed\n");
 177       if (!dga_dev) XDGACloseFramebuffer(display, DefaultScreen(display));
 178       data->ddRVal = DDERR_GENERIC;
 179     }
 180   }
 181   else if (dga_dev) {
 182     /* exit DGA */
 183     X11DRV_DD_IsDirect = FALSE;
 184     X11DRV_DDHAL_SwitchMode(0, NULL, NULL);
 185     XDGASetMode(display, DefaultScreen(display), 0);
 186     VirtualFree(dga_dev->data, 0, MEM_RELEASE);
 187     X11DRV_EVENT_SetInputMethod(X11DRV_INPUT_ABSOLUTE);
 188     X11DRV_EVENT_SetDGAStatus(0, -1);
 189     XFree(dga_dev);
 190     XDGACloseFramebuffer(display, DefaultScreen(display));
 191     dga_dev = NULL;
 192   }
 193   wine_tsx11_unlock();
 194   return DDHAL_DRIVER_HANDLED;
 195 }
 196
 197 static LPDDHAL_CREATESURFACE X11DRV_XF86DGA2_old_create_surface;
 198
 199 static DWORD PASCAL X11DRV_XF86DGA2_CreateSurface(LPDDHAL_CREATESURFACEDATA data)
 200 {
 201   LPDDRAWI_DDRAWSURFACE_LCL lcl = *data->lplpSList;
 202   LPDDRAWI_DDRAWSURFACE_GBL gbl = lcl->lpGbl;
 203   LPDDSURFACEDESC2 desc = (LPDDSURFACEDESC2)data->lpDDSurfaceDesc;
 204   HRESULT hr = DDHAL_DRIVER_NOTHANDLED;
 205
 206   if (X11DRV_XF86DGA2_old_create_surface)
 207     hr = X11DRV_XF86DGA2_old_create_surface(data);
 208
 209   if (desc->ddsCaps.dwCaps & (DDSCAPS_PRIMARYSURFACE | DDSCAPS_BACKBUFFER)) {
 210     gbl->fpVidMem = 0; /* tell ddraw to allocate the memory */
 211     hr = DDHAL_DRIVER_HANDLED;
 212   }
 213   return hr;
 214 }
 215
 216 static DWORD PASCAL X11DRV_XF86DGA2_CreatePalette(LPDDHAL_CREATEPALETTEDATA data)
 217 {
 218   Display *display = gdi_display;
 219   wine_tsx11_lock();
 220   data->lpDDPalette->u1.dwReserved1 = XDGACreateColormap(display, DefaultScreen(display),
 221                                                          dga_dev, AllocAll);
 222   wine_tsx11_unlock();
 223   if (data->lpColorTable)
 224     X11DRV_DDHAL_SetPalEntries(data->lpDDPalette->u1.dwReserved1, 0, 256,
 225                                data->lpColorTable);
 226   data->ddRVal = DD_OK;
 227   return DDHAL_DRIVER_HANDLED;
 228 }
 229
 230 static DWORD PASCAL X11DRV_XF86DGA2_Flip(LPDDHAL_FLIPDATA data)
 231 {
 232   Display *display = gdi_display;
 233   if (data->lpSurfCurr == X11DRV_DD_Primary) {
 234     DWORD ofs = data->lpSurfCurr->lpGbl->fpVidMem - dga_mem.fpStart;
 235     wine_tsx11_lock();
 236     XDGASetViewport(display, DefaultScreen(display),
 237                     (ofs % dga_dev->mode.bytesPerScanline)*8/dga_dev->mode.bitsPerPixel,
 238                     ofs / dga_dev->mode.bytesPerScanline,
 239                     XDGAFlipImmediate);
 240     wine_tsx11_unlock();
 241   }
 242   data->ddRVal = DD_OK;
 243   return DDHAL_DRIVER_HANDLED;
 244 }
 245
 246 static DWORD PASCAL X11DRV_XF86DGA2_SetPalette(LPDDHAL_SETPALETTEDATA data)
 247 {
 248   Display *display = gdi_display;
 249   if ((data->lpDDSurface == X11DRV_DD_Primary) &&
 250       data->lpDDPalette && data->lpDDPalette->u1.dwReserved1)
 251   {
 252       wine_tsx11_lock();
 253       XDGAInstallColormap(display, DefaultScreen(display), data->lpDDPalette->u1.dwReserved1);
 254       wine_tsx11_unlock();
 255   }
 256   data->ddRVal = DD_OK;
 257   return DDHAL_DRIVER_HANDLED;
 258 }
 259
 260 int X11DRV_XF86DGA2_CreateDriver(LPDDHALINFO info)
 261 {
 262   if (!xf86dga2_mode_count) return 0; /* no DGA */
 263
 264   info->dwNumModes = xf86dga2_mode_count;
 265   info->lpModeInfo = xf86dga2_modes;
 266   info->dwModeIndex = 0;
 267
 268   X11DRV_XF86DGA2_old_create_surface = info->lpDDCallbacks->CreateSurface;
 269   info->lpDDCallbacks->SetMode = X11DRV_XF86DGA2_SetMode;
 270   info->lpDDCallbacks->CreateSurface = X11DRV_XF86DGA2_CreateSurface;
 271   info->lpDDCallbacks->CreatePalette = X11DRV_XF86DGA2_CreatePalette;
 272   info->lpDDSurfaceCallbacks->Flip = X11DRV_XF86DGA2_Flip;
 273   info->lpDDSurfaceCallbacks->SetPalette = X11DRV_XF86DGA2_SetPalette;
 274   return TRUE;
 275 }
 276
 277 #endif /* HAVE_LIBXXF86DGA2 */