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 #include "ts_xlib.h"
  26 #include <X11/extensions/xf86dga.h>
  27
  28 #include "x11drv.h"
  29 #include "x11ddraw.h"
  30 #include "dga2.h"
  31
  32 #include "windef.h"
  33 #include "wingdi.h"
  34 #include "ddrawi.h"
  35 #include "wine/debug.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(x11drv);
  38
  39 extern int usedga;
  40
  41 LPDDHALMODEINFO xf86dga2_modes;
  42 unsigned xf86dga2_mode_count;
  43 static XDGAMode* modes;
  44 static int dga_event, dga_error;
  45
  46 static void convert_mode(XDGAMode *mode, LPDDHALMODEINFO info)
  47 {
  48   info->dwWidth        = mode->viewportWidth;
  49   info->dwHeight       = mode->viewportHeight;
  50   info->wRefreshRate   = mode->verticalRefresh;
  51   info->lPitch         = mode->bytesPerScanline;
  52   info->dwBPP          = (mode->depth < 24) ? mode->depth : mode->bitsPerPixel;
  53   info->wFlags         = (mode->depth == 8) ? DDMODEINFO_PALETTIZED : 0;
  54   info->dwRBitMask     = mode->redMask;
  55   info->dwGBitMask     = mode->greenMask;
  56   info->dwBBitMask     = mode->blueMask;
  57   info->dwAlphaBitMask = 0;
  58   TRACE(" width=%ld, height=%ld, bpp=%ld, refresh=%d\n",
  59         info->dwWidth, info->dwHeight, info->dwBPP, info->wRefreshRate);
  60 }
  61
  62 static int DGA2ErrorHandler(Display *dpy, XErrorEvent *event, void *arg)
  63 {
  64     return 1;
  65 }
  66
  67 void X11DRV_XF86DGA2_Init(void)
  68 {
  69   int nmodes, major, minor, i;
  70   Bool ok;
  71
  72   TRACE("\n");
  73
  74   if (xf86dga2_modes) return; /* already initialized? */
  75
  76   /* if in desktop mode, don't use DGA */
  77   if (root_window != DefaultRootWindow(gdi_display)) return;
  78
  79   if (!usedga) return;
  80
  81   wine_tsx11_lock();
  82   ok = XDGAQueryExtension(gdi_display, &dga_event, &dga_error);
  83   if (ok)
  84   {
  85       X11DRV_expect_error(gdi_display, DGA2ErrorHandler, NULL);
  86       ok = XDGAQueryVersion(gdi_display, &major, &minor);
  87       if (X11DRV_check_error()) ok = FALSE;
  88   }
  89   wine_tsx11_unlock();
  90   if (!ok) return;
  91
  92   if (major < 2) return; /* only bother with DGA 2+ */
  93
  94   /* test that it works */
  95   wine_tsx11_lock();
  96   X11DRV_expect_error(gdi_display, DGA2ErrorHandler, NULL);
  97   ok = XDGAOpenFramebuffer(gdi_display, DefaultScreen(gdi_display));
  98   if (X11DRV_check_error()) ok = FALSE;
  99   if (ok)
 100   {
 101       XDGACloseFramebuffer(gdi_display, DefaultScreen(gdi_display));
 102       /* retrieve modes */
 103       modes = XDGAQueryModes(gdi_display, DefaultScreen(gdi_display), &nmodes);
 104       if (!modes) ok = FALSE;
 105   }
 106   else WARN("disabling XF86DGA2 (insufficient permissions?)\n");
 107   wine_tsx11_unlock();
 108   if (!ok) return;
 109
 110   TRACE("DGA modes: count=%d\n", nmodes);
 111
 112   xf86dga2_mode_count = nmodes+1;
 113   xf86dga2_modes = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(DDHALMODEINFO) * (nmodes+1));
 114
 115   /* make dummy mode for exiting DGA */
 116   memset(&xf86dga2_modes[0], 0, sizeof(xf86dga2_modes[0]));
 117
 118   /* convert modes to DDHALMODEINFO format */
 119   for (i=0; i<nmodes; i++)
 120     convert_mode(&modes[i], &xf86dga2_modes[i+1]);
 121
 122   TRACE("Enabling XF86DGA2 mode\n");
 123 }
 124
 125 void X11DRV_XF86DGA2_Cleanup(void)
 126 {
 127   if (modes) TSXFree(modes);
 128 }
 129
 130 static XDGADevice *dga_dev;
 131
 132 static VIDMEM dga_mem = {
 133   VIDMEM_ISRECTANGULAR | VIDMEM_ISHEAP
 134 };
 135
 136 static DWORD PASCAL X11DRV_XF86DGA2_SetMode(LPDDHAL_SETMODEDATA data)
 137 {
 138   LPDDRAWI_DIRECTDRAW_LCL ddlocal = data->lpDD->lpExclusiveOwner;
 139   DWORD vram;
 140   Display *display = gdi_display;
 141
 142   data->ddRVal = DD_OK;
 143   wine_tsx11_lock();
 144   if (data->dwModeIndex) {
 145     /* enter DGA */
 146     XDGADevice *new_dev = NULL;
 147     if (dga_dev || XDGAOpenFramebuffer(display, DefaultScreen(display)))
 148       new_dev = XDGASetMode(display, DefaultScreen(display), modes[data->dwModeIndex-1].num);
 149     if (new_dev) {
 150       XDGASetViewport(display, DefaultScreen(display), 0, 0, XDGAFlipImmediate);
 151       if (dga_dev) {
 152         VirtualFree(dga_dev->data, 0, MEM_RELEASE);
 153         XFree(dga_dev);
 154       } else {
 155         XDGASelectInput(display, DefaultScreen(display),
 156                           KeyPressMask|KeyReleaseMask|
 157                           ButtonPressMask|ButtonReleaseMask|
 158                           PointerMotionMask);
 159         X11DRV_EVENT_SetDGAStatus((HWND)ddlocal->hWnd, dga_event);
 160         X11DRV_EVENT_SetInputMethod(X11DRV_INPUT_RELATIVE);
 161       }
 162       dga_dev = new_dev;
 163       vram = dga_dev->mode.bytesPerScanline * dga_dev->mode.imageHeight;
 164       VirtualAlloc(dga_dev->data, vram, MEM_RESERVE|MEM_SYSTEM, PAGE_READWRITE);
 165       dga_mem.fpStart = (FLATPTR)dga_dev->data;
 166       dga_mem.u1.dwWidth = dga_dev->mode.bytesPerScanline;
 167       dga_mem.u2.dwHeight = dga_dev->mode.imageHeight;
 168       X11DRV_DDHAL_SwitchMode(data->dwModeIndex, dga_dev->data, &dga_mem);
 169       X11DRV_DD_IsDirect = TRUE;
 170     }
 171     else {
 172       ERR("failed\n");
 173       if (!dga_dev) XDGACloseFramebuffer(display, DefaultScreen(display));
 174       data->ddRVal = DDERR_GENERIC;
 175     }
 176   }
 177   else if (dga_dev) {
 178     /* exit DGA */
 179     X11DRV_DD_IsDirect = FALSE;
 180     X11DRV_DDHAL_SwitchMode(0, NULL, NULL);
 181     XDGASetMode(display, DefaultScreen(display), 0);
 182     VirtualFree(dga_dev->data, 0, MEM_RELEASE);
 183     X11DRV_EVENT_SetInputMethod(X11DRV_INPUT_ABSOLUTE);
 184     X11DRV_EVENT_SetDGAStatus(0, -1);
 185     XFree(dga_dev);
 186     XDGACloseFramebuffer(display, DefaultScreen(display));
 187     dga_dev = NULL;
 188   }
 189   wine_tsx11_unlock();
 190   return DDHAL_DRIVER_HANDLED;
 191 }
 192
 193 static LPDDHAL_CREATESURFACE X11DRV_XF86DGA2_old_create_surface;
 194
 195 static DWORD PASCAL X11DRV_XF86DGA2_CreateSurface(LPDDHAL_CREATESURFACEDATA data)
 196 {
 197   LPDDRAWI_DDRAWSURFACE_LCL lcl = *data->lplpSList;
 198   LPDDRAWI_DDRAWSURFACE_GBL gbl = lcl->lpGbl;
 199   LPDDSURFACEDESC2 desc = (LPDDSURFACEDESC2)data->lpDDSurfaceDesc;
 200   HRESULT hr = DDHAL_DRIVER_NOTHANDLED;
 201
 202   if (X11DRV_XF86DGA2_old_create_surface)
 203     hr = X11DRV_XF86DGA2_old_create_surface(data);
 204
 205   if (desc->ddsCaps.dwCaps & (DDSCAPS_PRIMARYSURFACE | DDSCAPS_BACKBUFFER)) {
 206     gbl->fpVidMem = 0; /* tell ddraw to allocate the memory */
 207     hr = DDHAL_DRIVER_HANDLED;
 208   }
 209   return hr;
 210 }
 211
 212 static DWORD PASCAL X11DRV_XF86DGA2_CreatePalette(LPDDHAL_CREATEPALETTEDATA data)
 213 {
 214   Display *display = gdi_display;
 215   wine_tsx11_lock();
 216   data->lpDDPalette->u1.dwReserved1 = XDGACreateColormap(display, DefaultScreen(display),
 217                                                          dga_dev, AllocAll);
 218   wine_tsx11_unlock();
 219   if (data->lpColorTable)
 220     X11DRV_DDHAL_SetPalEntries(data->lpDDPalette->u1.dwReserved1, 0, 256,
 221                                data->lpColorTable);
 222   data->ddRVal = DD_OK;
 223   return DDHAL_DRIVER_HANDLED;
 224 }
 225
 226 static DWORD PASCAL X11DRV_XF86DGA2_Flip(LPDDHAL_FLIPDATA data)
 227 {
 228   Display *display = gdi_display;
 229   if (data->lpSurfCurr == X11DRV_DD_Primary) {
 230     DWORD ofs = data->lpSurfCurr->lpGbl->fpVidMem - dga_mem.fpStart;
 231     wine_tsx11_lock();
 232     XDGASetViewport(display, DefaultScreen(display),
 233                     (ofs % dga_dev->mode.bytesPerScanline)*8/dga_dev->mode.bitsPerPixel,
 234                     ofs / dga_dev->mode.bytesPerScanline,
 235                     XDGAFlipImmediate);
 236     wine_tsx11_unlock();
 237   }
 238   data->ddRVal = DD_OK;
 239   return DDHAL_DRIVER_HANDLED;
 240 }
 241
 242 static DWORD PASCAL X11DRV_XF86DGA2_SetPalette(LPDDHAL_SETPALETTEDATA data)
 243 {
 244   Display *display = gdi_display;
 245   if ((data->lpDDSurface == X11DRV_DD_Primary) &&
 246       data->lpDDPalette && data->lpDDPalette->u1.dwReserved1)
 247   {
 248       wine_tsx11_lock();
 249       XDGAInstallColormap(display, DefaultScreen(display), data->lpDDPalette->u1.dwReserved1);
 250       wine_tsx11_unlock();
 251   }
 252   data->ddRVal = DD_OK;
 253   return DDHAL_DRIVER_HANDLED;
 254 }
 255
 256 int X11DRV_XF86DGA2_CreateDriver(LPDDHALINFO info)
 257 {
 258   if (!xf86dga2_mode_count) return 0; /* no DGA */
 259
 260   info->dwNumModes = xf86dga2_mode_count;
 261   info->lpModeInfo = xf86dga2_modes;
 262   info->dwModeIndex = 0;
 263
 264   X11DRV_XF86DGA2_old_create_surface = info->lpDDCallbacks->CreateSurface;
 265   info->lpDDCallbacks->SetMode = X11DRV_XF86DGA2_SetMode;
 266   info->lpDDCallbacks->CreateSurface = X11DRV_XF86DGA2_CreateSurface;
 267   info->lpDDCallbacks->CreatePalette = X11DRV_XF86DGA2_CreatePalette;
 268   info->lpDDSurfaceCallbacks->Flip = X11DRV_XF86DGA2_Flip;
 269   info->lpDDSurfaceCallbacks->SetPalette = X11DRV_XF86DGA2_SetPalette;
 270   return TRUE;
 271 }
 272
 273 #endif /* HAVE_LIBXXF86DGA2 */