dlls/winex11.drv/bitmap.c

   1 /*
   2  * X11DRV bitmap objects
   3  *
   4  * Copyright 1993 Alexandre Julliard
   5  *           1999 Noel Borthwick
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include "windef.h"
  27 #include "wingdi.h"
  28 #include "wine/debug.h"
  29 #include "x11drv.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(x11drv);
  32
  33   /* GCs used for B&W and color bitmap operations */
  34 static GC bitmap_gc[32];
  35 X_PHYSBITMAP BITMAP_stock_phys_bitmap = { 0 };  /* phys bitmap for the default stock bitmap */
  36
  37 static XContext bitmap_context;  /* X context to associate a phys bitmap to a handle */
  38
  39 GC get_bitmap_gc(int depth)
  40 {
  41     if(depth < 1 || depth > 32)
  42         return 0;
  43
  44     return bitmap_gc[depth-1];
  45 }
  46
  47 /***********************************************************************
  48  *           X11DRV_BITMAP_Init
  49  */
  50 void X11DRV_BITMAP_Init(void)
  51 {
  52     int depth_count, index, i;
  53     int *depth_list;
  54     Pixmap tmpPixmap;
  55
  56     wine_tsx11_lock();
  57     bitmap_context = XUniqueContext();
  58     BITMAP_stock_phys_bitmap.depth = 1;
  59     BITMAP_stock_phys_bitmap.pixmap = XCreatePixmap( gdi_display, root_window, 1, 1, 1 );
  60     bitmap_gc[0] = XCreateGC( gdi_display, BITMAP_stock_phys_bitmap.pixmap, 0, NULL );
  61     XSetGraphicsExposures( gdi_display, bitmap_gc[0], False );
  62     XSetSubwindowMode( gdi_display, bitmap_gc[0], IncludeInferiors );
  63
  64     /* Create a GC for all available depths. GCs at depths other than 1-bit/screen_depth are for use
  65      * in combination with XRender which allows us to create dibsections at more depths.
  66      */
  67     depth_list = XListDepths(gdi_display, DefaultScreen(gdi_display), &depth_count);
  68     for (i = 0; i < depth_count; i++)
  69     {
  70         index = depth_list[i] - 1;
  71         if (bitmap_gc[index]) continue;
  72         if ((tmpPixmap = XCreatePixmap( gdi_display, root_window, 1, 1, depth_list[i])))
  73         {
  74             if ((bitmap_gc[index] = XCreateGC( gdi_display, tmpPixmap, 0, NULL )))
  75             {
  76                 XSetGraphicsExposures( gdi_display, bitmap_gc[index], False );
  77                 XSetSubwindowMode( gdi_display, bitmap_gc[index], IncludeInferiors );
  78             }
  79             XFreePixmap( gdi_display, tmpPixmap );
  80         }
  81     }
  82     XFree( depth_list );
  83
  84     wine_tsx11_unlock();
  85 }
  86
  87 /***********************************************************************
  88  *           SelectBitmap   (X11DRV.@)
  89  */
  90 HBITMAP X11DRV_SelectBitmap( PHYSDEV dev, HBITMAP hbitmap )
  91 {
  92     X11DRV_PDEVICE *physDev = get_x11drv_dev( dev );
  93     X_PHYSBITMAP *physBitmap;
  94     BITMAP bitmap;
  95
  96     if (!GetObjectW( hbitmap, sizeof(bitmap), &bitmap )) return 0;
  97
  98     if (hbitmap == BITMAP_stock_phys_bitmap.hbitmap) physBitmap = &BITMAP_stock_phys_bitmap;
  99     else if (!(physBitmap = X11DRV_get_phys_bitmap( hbitmap ))) return 0;
 100
 101     physDev->bitmap = physBitmap;
 102     physDev->drawable = physBitmap->pixmap;
 103     physDev->color_shifts = physBitmap->trueColor ? &physBitmap->color_shifts : NULL;
 104     SetRect( &physDev->drawable_rect, 0, 0, bitmap.bmWidth, bitmap.bmHeight );
 105     physDev->dc_rect = physDev->drawable_rect;
 106
 107       /* Change GC depth if needed */
 108
 109     if (physDev->depth != physBitmap->depth)
 110     {
 111         physDev->depth = physBitmap->depth;
 112         wine_tsx11_lock();
 113         XFreeGC( gdi_display, physDev->gc );
 114         physDev->gc = XCreateGC( gdi_display, physDev->drawable, 0, NULL );
 115         XSetGraphicsExposures( gdi_display, physDev->gc, False );
 116         XSetSubwindowMode( gdi_display, physDev->gc, IncludeInferiors );
 117         XFlush( gdi_display );
 118         wine_tsx11_unlock();
 119     }
 120
 121     return hbitmap;
 122 }
 123
 124
 125 /***********************************************************************
 126  *           X11DRV_create_phys_bitmap
 127  */
 128 BOOL X11DRV_create_phys_bitmap( HBITMAP hbitmap, const BITMAP *bitmap, int depth,
 129                                 int true_color, const ColorShifts *shifts )
 130 {
 131     X_PHYSBITMAP *physBitmap;
 132
 133     if (!(physBitmap = X11DRV_init_phys_bitmap( hbitmap ))) return FALSE;
 134
 135     physBitmap->depth = depth;
 136     physBitmap->trueColor = true_color;
 137     if (true_color) physBitmap->color_shifts = *shifts;
 138
 139     wine_tsx11_lock();
 140     physBitmap->pixmap = XCreatePixmap( gdi_display, root_window,
 141                                         bitmap->bmWidth, bitmap->bmHeight, physBitmap->depth );
 142     if (physBitmap->pixmap)
 143     {
 144         GC gc = get_bitmap_gc( depth );
 145         XSetFunction( gdi_display, gc, GXclear );
 146         XFillRectangle( gdi_display, physBitmap->pixmap, gc, 0, 0, bitmap->bmWidth, bitmap->bmHeight );
 147         XSetFunction( gdi_display, gc, GXcopy );
 148     }
 149     wine_tsx11_unlock();
 150     if (!physBitmap->pixmap)
 151     {
 152         WARN("Can't create Pixmap\n");
 153         HeapFree( GetProcessHeap(), 0, physBitmap );
 154         return FALSE;
 155     }
 156     return TRUE;
 157 }
 158
 159
 160 /****************************************************************************
 161  *        CreateBitmap   (X11DRV.@)
 162  *
 163  * Create a device dependent X11 bitmap
 164  *
 165  * Returns TRUE on success else FALSE
 166  */
 167 BOOL X11DRV_CreateBitmap( PHYSDEV dev, HBITMAP hbitmap )
 168 {
 169     BITMAP bitmap;
 170
 171     if (!GetObjectW( hbitmap, sizeof(bitmap), &bitmap )) return FALSE;
 172
 173       /* Check parameters */
 174     if (bitmap.bmPlanes != 1) return FALSE;
 175
 176     /* check if bpp is compatible with screen depth */
 177     if (!((bitmap.bmBitsPixel == 1) || (bitmap.bmBitsPixel == screen_bpp)))
 178     {
 179         WARN("Trying to make bitmap with planes=%d, bpp=%d\n",
 180             bitmap.bmPlanes, bitmap.bmBitsPixel);
 181         return FALSE;
 182     }
 183
 184     TRACE("(%p) %dx%d %d bpp\n", hbitmap, bitmap.bmWidth, bitmap.bmHeight, bitmap.bmBitsPixel);
 185
 186     if (bitmap.bmBitsPixel == 1)
 187     {
 188         if (hbitmap == BITMAP_stock_phys_bitmap.hbitmap)
 189         {
 190             ERR( "called for stock bitmap, please report\n" );
 191             return FALSE;
 192         }
 193         return X11DRV_create_phys_bitmap( hbitmap, &bitmap, 1, FALSE, NULL );
 194     }
 195
 196     return X11DRV_create_phys_bitmap( hbitmap, &bitmap, screen_depth,
 197                                       (visual->class == TrueColor || visual->class == DirectColor),
 198                                       &X11DRV_PALETTE_default_shifts );
 199 }
 200
 201
 202 /***********************************************************************
 203  *           DeleteBitmap   (X11DRV.@)
 204  */
 205 BOOL X11DRV_DeleteBitmap( HBITMAP hbitmap )
 206 {
 207     X_PHYSBITMAP *physBitmap = X11DRV_get_phys_bitmap( hbitmap );
 208
 209     if (physBitmap)
 210     {
 211         DIBSECTION dib;
 212
 213         if (GetObjectW( hbitmap, sizeof(dib), &dib ) == sizeof(dib))
 214             X11DRV_DIB_DeleteDIBSection( physBitmap, &dib );
 215
 216         if (physBitmap->glxpixmap)
 217             destroy_glxpixmap( gdi_display, physBitmap->glxpixmap );
 218         wine_tsx11_lock();
 219         if (physBitmap->pixmap) XFreePixmap( gdi_display, physBitmap->pixmap );
 220         XDeleteContext( gdi_display, (XID)hbitmap, bitmap_context );
 221         wine_tsx11_unlock();
 222         HeapFree( GetProcessHeap(), 0, physBitmap );
 223     }
 224     return TRUE;
 225 }
 226
 227
 228 /***********************************************************************
 229  *           X11DRV_get_phys_bitmap
 230  *
 231  * Retrieve the X physical bitmap info.
 232  */
 233 X_PHYSBITMAP *X11DRV_get_phys_bitmap( HBITMAP hbitmap )
 234 {
 235     X_PHYSBITMAP *ret;
 236
 237     wine_tsx11_lock();
 238     if (XFindContext( gdi_display, (XID)hbitmap, bitmap_context, (char **)&ret )) ret = NULL;
 239     wine_tsx11_unlock();
 240     return ret;
 241 }
 242
 243
 244 /***********************************************************************
 245  *           X11DRV_init_phys_bitmap
 246  *
 247  * Initialize the X physical bitmap info.
 248  */
 249 X_PHYSBITMAP *X11DRV_init_phys_bitmap( HBITMAP hbitmap )
 250 {
 251     X_PHYSBITMAP *ret;
 252
 253     if ((ret = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*ret) )) != NULL)
 254     {
 255         ret->hbitmap = hbitmap;
 256         wine_tsx11_lock();
 257         XSaveContext( gdi_display, (XID)hbitmap, bitmap_context, (char *)ret );
 258         wine_tsx11_unlock();
 259     }
 260     return ret;
 261 }
 262
 263
 264 /***********************************************************************
 265  *           X11DRV_get_pixmap
 266  *
 267  * Retrieve the pixmap associated to a bitmap.
 268  */
 269 Pixmap X11DRV_get_pixmap( HBITMAP hbitmap )
 270 {
 271     X_PHYSBITMAP *physBitmap = X11DRV_get_phys_bitmap( hbitmap );
 272
 273     if (!physBitmap) return 0;
 274     return physBitmap->pixmap;
 275 }