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 "ts_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   if (modes) TSXFree(modes);
 130 }
 131
 132 static XDGADevice *dga_dev;
 133
 134 static VIDMEM dga_mem = {
 135   VIDMEM_ISRECTANGULAR | VIDMEM_ISHEAP
 136 };
 137
 138 static DWORD PASCAL X11DRV_XF86DGA2_SetMode(LPDDHAL_SETMODEDATA data)
 139 {
 140   LPDDRAWI_DIRECTDRAW_LCL ddlocal = data->lpDD->lpExclusiveOwner;
 141   DWORD vram;
 142   Display *display = gdi_display;
 143
 144   data->ddRVal = DD_OK;
 145   wine_tsx11_lock();
 146   if (data->dwModeIndex) {
 147     /* enter DGA */
 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);
 151     if (new_dev) {
 152       XDGASetViewport(display, DefaultScreen(display), 0, 0, XDGAFlipImmediate);
 153       if (dga_dev) {
 154         VirtualFree(dga_dev->data, 0, MEM_RELEASE);
 155         XFree(dga_dev);
 156       } else {
 157         XDGASelectInput(display, DefaultScreen(display),
 158                           KeyPressMask|KeyReleaseMask|
 159                           ButtonPressMask|ButtonReleaseMask|
 160                           PointerMotionMask);
 161         X11DRV_EVENT_SetDGAStatus((HWND)ddlocal->hWnd, dga_event);
 162         X11DRV_EVENT_SetInputMethod(X11DRV_INPUT_RELATIVE);
 163       }
 164       dga_dev = new_dev;
 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;
 172     }
 173     else {
 174       ERR("failed\n");
 175       if (!dga_dev) XDGACloseFramebuffer(display, DefaultScreen(display));
 176       data->ddRVal = DDERR_GENERIC;
 177     }
 178   }
 179   else if (dga_dev) {
 180     /* exit DGA */
 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);
 187     XFree(dga_dev);
 188     XDGACloseFramebuffer(display, DefaultScreen(display));
 189     dga_dev = NULL;
 190   }
 191   wine_tsx11_unlock();
 192   return DDHAL_DRIVER_HANDLED;
 193 }
 194
 195 static LPDDHAL_CREATESURFACE X11DRV_XF86DGA2_old_create_surface;
 196
 197 static DWORD PASCAL X11DRV_XF86DGA2_CreateSurface(LPDDHAL_CREATESURFACEDATA data)
 198 {
 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;
 203
 204   if (X11DRV_XF86DGA2_old_create_surface)
 205     hr = X11DRV_XF86DGA2_old_create_surface(data);
 206
 207   if (desc->ddsCaps.dwCaps & (DDSCAPS_PRIMARYSURFACE | DDSCAPS_BACKBUFFER)) {
 208     gbl->fpVidMem = 0; /* tell ddraw to allocate the memory */
 209     hr = DDHAL_DRIVER_HANDLED;
 210   }
 211   return hr;
 212 }
 213
 214 static DWORD PASCAL X11DRV_XF86DGA2_CreatePalette(LPDDHAL_CREATEPALETTEDATA data)
 215 {
 216   Display *display = gdi_display;
 217   wine_tsx11_lock();
 218   data->lpDDPalette->u1.dwReserved1 = XDGACreateColormap(display, DefaultScreen(display),
 219                                                          dga_dev, AllocAll);
 220   wine_tsx11_unlock();
 221   if (data->lpColorTable)
 222     X11DRV_DDHAL_SetPalEntries(data->lpDDPalette->u1.dwReserved1, 0, 256,
 223                                data->lpColorTable);
 224   data->ddRVal = DD_OK;
 225   return DDHAL_DRIVER_HANDLED;
 226 }
 227
 228 static DWORD PASCAL X11DRV_XF86DGA2_Flip(LPDDHAL_FLIPDATA data)
 229 {
 230   Display *display = gdi_display;
 231   if (data->lpSurfCurr == X11DRV_DD_Primary) {
 232     DWORD ofs = data->lpSurfCurr->lpGbl->fpVidMem - dga_mem.fpStart;
 233     wine_tsx11_lock();
 234     XDGASetViewport(display, DefaultScreen(display),
 235                     (ofs % dga_dev->mode.bytesPerScanline)*8/dga_dev->mode.bitsPerPixel,
 236                     ofs / dga_dev->mode.bytesPerScanline,
 237                     XDGAFlipImmediate);
 238     wine_tsx11_unlock();
 239   }
 240   data->ddRVal = DD_OK;
 241   return DDHAL_DRIVER_HANDLED;
 242 }
 243
 244 static DWORD PASCAL X11DRV_XF86DGA2_SetPalette(LPDDHAL_SETPALETTEDATA data)
 245 {
 246   Display *display = gdi_display;
 247   if ((data->lpDDSurface == X11DRV_DD_Primary) &&
 248       data->lpDDPalette && data->lpDDPalette->u1.dwReserved1)
 249   {
 250       wine_tsx11_lock();
 251       XDGAInstallColormap(display, DefaultScreen(display), data->lpDDPalette->u1.dwReserved1);
 252       wine_tsx11_unlock();
 253   }
 254   data->ddRVal = DD_OK;
 255   return DDHAL_DRIVER_HANDLED;
 256 }
 257
 258 int X11DRV_XF86DGA2_CreateDriver(LPDDHALINFO info)
 259 {
 260   if (!xf86dga2_mode_count) return 0; /* no DGA */
 261
 262   info->dwNumModes = xf86dga2_mode_count;
 263   info->lpModeInfo = xf86dga2_modes;
 264   info->dwModeIndex = 0;
 265
 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;
 272   return TRUE;
 273 }
 274
 275 #endif /* HAVE_LIBXXF86DGA2 */