graphics/x11drv/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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include "config.h"
  23
  24 #include "ts_xlib.h"
  25 #include "ts_xutil.h"
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include "gdi.h"
  30 #include "bitmap.h"
  31 #include "wine/debug.h"
  32 #include "x11drv.h"
  33 #include "wingdi.h"
  34 #include "windef.h"
  35 #include "wine/winuser16.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(x11drv);
  38
  39   /* GCs used for B&W and color bitmap operations */
  40 GC BITMAP_monoGC = 0, BITMAP_colorGC = 0;
  41
  42 extern const DC_FUNCTIONS *X11DRV_DC_Funcs;  /* hack */
  43
  44 /***********************************************************************
  45  *           X11DRV_BITMAP_Init
  46  */
  47 BOOL X11DRV_BITMAP_Init(void)
  48 {
  49     Pixmap tmpPixmap;
  50
  51       /* Create the necessary GCs */
  52
  53     wine_tsx11_lock();
  54     if ((tmpPixmap = XCreatePixmap( gdi_display, root_window, 1, 1, 1 )))
  55     {
  56         BITMAP_monoGC = XCreateGC( gdi_display, tmpPixmap, 0, NULL );
  57         XSetGraphicsExposures( gdi_display, BITMAP_monoGC, False );
  58         XSetSubwindowMode( gdi_display, BITMAP_monoGC, IncludeInferiors );
  59         XFreePixmap( gdi_display, tmpPixmap );
  60     }
  61
  62     if (screen_depth != 1)
  63     {
  64         if ((tmpPixmap = XCreatePixmap( gdi_display, root_window, 1, 1, screen_depth )))
  65         {
  66             BITMAP_colorGC = XCreateGC( gdi_display, tmpPixmap, 0, NULL );
  67             XSetGraphicsExposures( gdi_display, BITMAP_colorGC, False );
  68             XSetSubwindowMode( gdi_display, BITMAP_colorGC, IncludeInferiors );
  69             XFreePixmap( gdi_display, tmpPixmap );
  70         }
  71     }
  72     wine_tsx11_unlock();
  73     return TRUE;
  74 }
  75
  76 /***********************************************************************
  77  *           X11DRV_BITMAP_SelectObject
  78  */
  79 HBITMAP X11DRV_BITMAP_SelectObject( DC * dc, HBITMAP hbitmap )
  80 {
  81     BITMAPOBJ *bmp;
  82     HRGN hrgn;
  83     HBITMAP prevHandle = dc->hBitmap;
  84     X11DRV_PDEVICE *physDev = (X11DRV_PDEVICE *)dc->physDev;
  85
  86     if (!(dc->flags & DC_MEMORY)) return 0;
  87     if (hbitmap == dc->hBitmap) return hbitmap;  /* nothing to do */
  88     if (!(bmp = GDI_GetObjPtr( hbitmap, BITMAP_MAGIC ))) return 0;
  89
  90     if (bmp->header.dwCount && (hbitmap != GetStockObject(DEFAULT_BITMAP)))
  91     {
  92         WARN( "Bitmap already selected in another DC\n" );
  93         GDI_ReleaseObj( hbitmap );
  94         return 0;
  95     }
  96
  97     if(!bmp->physBitmap)
  98     {
  99         if(!X11DRV_CreateBitmap(hbitmap))
 100         {
 101             GDI_ReleaseObj( hbitmap );
 102             return 0;
 103         }
 104     }
 105
 106     if(bmp->funcs != dc->funcs) {
 107         WARN("Trying to select non-X11 DDB into an X11 dc\n");
 108         GDI_ReleaseObj( hbitmap );
 109         return 0;
 110     }
 111
 112     if (!(hrgn = CreateRectRgn(0, 0, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight)))
 113     {
 114         GDI_ReleaseObj( hbitmap );
 115         return 0;
 116     }
 117
 118     dc->totalExtent.left   = 0;
 119     dc->totalExtent.top    = 0;
 120     dc->totalExtent.right  = bmp->bitmap.bmWidth;
 121     dc->totalExtent.bottom = bmp->bitmap.bmHeight;
 122
 123     physDev->drawable = (Pixmap)bmp->physBitmap;
 124     dc->hBitmap     = hbitmap;
 125
 126     SelectVisRgn16( dc->hSelf, hrgn );
 127     DeleteObject( hrgn );
 128
 129       /* Change GC depth if needed */
 130
 131     if (dc->bitsPerPixel != bmp->bitmap.bmBitsPixel)
 132     {
 133         wine_tsx11_lock();
 134         XFreeGC( gdi_display, physDev->gc );
 135         physDev->gc = XCreateGC( gdi_display, physDev->drawable, 0, NULL );
 136         XSetGraphicsExposures( gdi_display, physDev->gc, False );
 137         XSetSubwindowMode( gdi_display, physDev->gc, IncludeInferiors );
 138         XFlush( gdi_display );
 139         wine_tsx11_unlock();
 140         dc->bitsPerPixel = bmp->bitmap.bmBitsPixel;
 141         DC_InitDC( dc );
 142     }
 143     GDI_ReleaseObj( hbitmap );
 144     return prevHandle;
 145 }
 146
 147
 148 /****************************************************************************
 149  *
 150  *        X11DRV_CreateBitmap
 151  *
 152  * Create a device dependent X11 bitmap
 153  *
 154  * Returns TRUE on success else FALSE
 155  *
 156  */
 157
 158 BOOL X11DRV_CreateBitmap( HBITMAP hbitmap )
 159 {
 160     BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
 161
 162     if(!bmp) {
 163         WARN("Bad bitmap handle %08x\n", hbitmap);
 164         return FALSE;
 165     }
 166
 167       /* Check parameters */
 168     if (bmp->bitmap.bmPlanes != 1)
 169     {
 170         GDI_ReleaseObj( hbitmap );
 171         return 0;
 172     }
 173     if ((bmp->bitmap.bmBitsPixel != 1) && (bmp->bitmap.bmBitsPixel != screen_depth))
 174     {
 175         ERR("Trying to make bitmap with planes=%d, bpp=%d\n",
 176             bmp->bitmap.bmPlanes, bmp->bitmap.bmBitsPixel);
 177         GDI_ReleaseObj( hbitmap );
 178         return FALSE;
 179     }
 180
 181     TRACE("(%08x) %dx%d %d bpp\n", hbitmap, bmp->bitmap.bmWidth,
 182           bmp->bitmap.bmHeight, bmp->bitmap.bmBitsPixel);
 183
 184       /* Create the pixmap */
 185     if (!(bmp->physBitmap = (void *)TSXCreatePixmap(gdi_display, root_window,
 186                                                     bmp->bitmap.bmWidth, bmp->bitmap.bmHeight,
 187                                                     bmp->bitmap.bmBitsPixel)))
 188     {
 189         WARN("Can't create Pixmap\n");
 190         GDI_ReleaseObj( hbitmap );
 191         return FALSE;
 192     }
 193     bmp->funcs = X11DRV_DC_Funcs;
 194
 195     if (bmp->bitmap.bmBits) /* Set bitmap bits */
 196         X11DRV_BitmapBits( hbitmap, bmp->bitmap.bmBits,
 197                            bmp->bitmap.bmHeight * bmp->bitmap.bmWidthBytes,
 198                            DDB_SET );
 199
 200     GDI_ReleaseObj( hbitmap );
 201     return TRUE;
 202 }
 203
 204
 205 /***********************************************************************
 206  *           X11DRV_GetBitmapBits
 207  *
 208  * RETURNS
 209  *    Success: Number of bytes copied
 210  *    Failure: 0
 211  */
 212 static LONG X11DRV_GetBitmapBits(BITMAPOBJ *bmp, void *buffer, LONG count)
 213 {
 214     LONG old_height, height;
 215     XImage *image;
 216     LPBYTE tbuf, startline;
 217     int h, w;
 218
 219     TRACE("(bmp=%p, buffer=%p, count=0x%lx)\n", bmp, buffer, count);
 220
 221     wine_tsx11_lock();
 222
 223     /* Hack: change the bitmap height temporarily to avoid */
 224     /*       getting unnecessary bitmap rows. */
 225
 226     old_height = bmp->bitmap.bmHeight;
 227     height = bmp->bitmap.bmHeight = count / bmp->bitmap.bmWidthBytes;
 228
 229     image = XGetImage( gdi_display, (Pixmap)bmp->physBitmap,
 230                        0, 0, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight,
 231                        AllPlanes, ZPixmap );
 232     bmp->bitmap.bmHeight = old_height;
 233
 234     /* copy XImage to 16 bit padded image buffer with real bitsperpixel */
 235
 236     startline = buffer;
 237     switch (bmp->bitmap.bmBitsPixel)
 238     {
 239     case 1:
 240         for (h=0;h<height;h++)
 241         {
 242             tbuf = startline;
 243             *tbuf = 0;
 244             for (w=0;w<bmp->bitmap.bmWidth;w++)
 245             {
 246                 if ((w%8) == 0)
 247                     *tbuf = 0;
 248                 *tbuf |= XGetPixel(image,w,h)<<(7-(w&7));
 249                 if ((w&7) == 7) ++tbuf;
 250             }
 251             startline += bmp->bitmap.bmWidthBytes;
 252         }
 253         break;
 254     case 4:
 255         for (h=0;h<height;h++)
 256         {
 257             tbuf = startline;
 258             for (w=0;w<bmp->bitmap.bmWidth;w++)
 259             {
 260                 if (!(w & 1)) *tbuf = XGetPixel( image, w, h) << 4;
 261                 else *tbuf++ |= XGetPixel( image, w, h) & 0x0f;
 262             }
 263             startline += bmp->bitmap.bmWidthBytes;
 264         }
 265         break;
 266     case 8:
 267         for (h=0;h<height;h++)
 268         {
 269             tbuf = startline;
 270             for (w=0;w<bmp->bitmap.bmWidth;w++)
 271                 *tbuf++ = XGetPixel(image,w,h);
 272             startline += bmp->bitmap.bmWidthBytes;
 273         }
 274         break;
 275     case 15:
 276     case 16:
 277         for (h=0;h<height;h++)
 278         {
 279             tbuf = startline;
 280             for (w=0;w<bmp->bitmap.bmWidth;w++)
 281             {
 282                 long pixel = XGetPixel(image,w,h);
 283
 284                 *tbuf++ = pixel & 0xff;
 285                 *tbuf++ = (pixel>>8) & 0xff;
 286             }
 287             startline += bmp->bitmap.bmWidthBytes;
 288         }
 289         break;
 290     case 24:
 291         for (h=0;h<height;h++)
 292         {
 293             tbuf = startline;
 294             for (w=0;w<bmp->bitmap.bmWidth;w++)
 295             {
 296                 long pixel = XGetPixel(image,w,h);
 297
 298                 *tbuf++ = pixel & 0xff;
 299                 *tbuf++ = (pixel>> 8) & 0xff;
 300                 *tbuf++ = (pixel>>16) & 0xff;
 301             }
 302             startline += bmp->bitmap.bmWidthBytes;
 303         }
 304         break;
 305
 306     case 32:
 307         for (h=0;h<height;h++)
 308         {
 309             tbuf = startline;
 310             for (w=0;w<bmp->bitmap.bmWidth;w++)
 311             {
 312                 long pixel = XGetPixel(image,w,h);
 313
 314                 *tbuf++ = pixel & 0xff;
 315                 *tbuf++ = (pixel>> 8) & 0xff;
 316                 *tbuf++ = (pixel>>16) & 0xff;
 317                 *tbuf++ = (pixel>>24) & 0xff;
 318             }
 319             startline += bmp->bitmap.bmWidthBytes;
 320         }
 321         break;
 322     default:
 323         FIXME("Unhandled bits:%d\n", bmp->bitmap.bmBitsPixel);
 324     }
 325     XDestroyImage( image );
 326     wine_tsx11_unlock();
 327     return count;
 328 }
 329
 330
 331
 332 /******************************************************************************
 333  *             X11DRV_SetBitmapBits
 334  *
 335  * RETURNS
 336  *    Success: Number of bytes used in setting the bitmap bits
 337  *    Failure: 0
 338  */
 339 static LONG X11DRV_SetBitmapBits(BITMAPOBJ *bmp, void *bits, LONG count)
 340 {
 341     LONG height;
 342     XImage *image;
 343     LPBYTE sbuf, startline;
 344     int w, h;
 345
 346     TRACE("(bmp=%p, bits=%p, count=0x%lx)\n", bmp, bits, count);
 347
 348     height = count / bmp->bitmap.bmWidthBytes;
 349
 350     wine_tsx11_lock();
 351     image = XCreateImage( gdi_display, visual, bmp->bitmap.bmBitsPixel, ZPixmap, 0, NULL,
 352                           bmp->bitmap.bmWidth, height, 32, 0 );
 353     if (!(image->data = (LPBYTE)malloc(image->bytes_per_line * height)))
 354     {
 355         WARN("No memory to create image data.\n");
 356         XDestroyImage( image );
 357         wine_tsx11_unlock();
 358         return 0;
 359     }
 360
 361     /* copy 16 bit padded image buffer with real bitsperpixel to XImage */
 362
 363     startline = bits;
 364
 365     switch (bmp->bitmap.bmBitsPixel)
 366     {
 367     case 1:
 368         for (h=0;h<height;h++)
 369         {
 370             sbuf = startline;
 371             for (w=0;w<bmp->bitmap.bmWidth;w++)
 372             {
 373                 XPutPixel(image,w,h,(sbuf[0]>>(7-(w&7))) & 1);
 374                 if ((w&7) == 7)
 375                     sbuf++;
 376             }
 377             startline += bmp->bitmap.bmWidthBytes;
 378         }
 379         break;
 380     case 4:
 381         for (h=0;h<height;h++)
 382         {
 383             sbuf = startline;
 384             for (w=0;w<bmp->bitmap.bmWidth;w++)
 385             {
 386                 if (!(w & 1)) XPutPixel( image, w, h, *sbuf >> 4 );
 387                 else XPutPixel( image, w, h, *sbuf++ & 0xf );
 388             }
 389             startline += bmp->bitmap.bmWidthBytes;
 390         }
 391         break;
 392     case 8:
 393         for (h=0;h<height;h++)
 394         {
 395             sbuf = startline;
 396             for (w=0;w<bmp->bitmap.bmWidth;w++)
 397                 XPutPixel(image,w,h,*sbuf++);
 398             startline += bmp->bitmap.bmWidthBytes;
 399         }
 400         break;
 401     case 15:
 402     case 16:
 403         for (h=0;h<height;h++)
 404         {
 405             sbuf = startline;
 406             for (w=0;w<bmp->bitmap.bmWidth;w++)
 407             {
 408                 XPutPixel(image,w,h,sbuf[1]*256+sbuf[0]);
 409                 sbuf+=2;
 410             }
 411             startline += bmp->bitmap.bmWidthBytes;
 412         }
 413         break;
 414     case 24:
 415         for (h=0;h<height;h++)
 416         {
 417             sbuf = startline;
 418             for (w=0;w<bmp->bitmap.bmWidth;w++)
 419             {
 420                 XPutPixel(image,w,h,(sbuf[2]<<16)+(sbuf[1]<<8)+sbuf[0]);
 421                 sbuf += 3;
 422             }
 423             startline += bmp->bitmap.bmWidthBytes;
 424         }
 425         break;
 426     case 32:
 427         for (h=0;h<height;h++)
 428         {
 429             sbuf = startline;
 430             for (w=0;w<bmp->bitmap.bmWidth;w++)
 431             {
 432                 XPutPixel(image,w,h,(sbuf[3]<<24)+(sbuf[2]<<16)+(sbuf[1]<<8)+sbuf[0]);
 433                 sbuf += 4;
 434             }
 435             startline += bmp->bitmap.bmWidthBytes;
 436         }
 437         break;
 438     default:
 439       FIXME("Unhandled bits:%d\n", bmp->bitmap.bmBitsPixel);
 440
 441     }
 442     XPutImage( gdi_display, (Pixmap)bmp->physBitmap, BITMAP_GC(bmp),
 443                image, 0, 0, 0, 0, bmp->bitmap.bmWidth, height );
 444     XDestroyImage( image ); /* frees image->data too */
 445     wine_tsx11_unlock();
 446     return count;
 447 }
 448
 449 /***********************************************************************
 450  *           X11DRV_BitmapBits
 451  */
 452 LONG X11DRV_BitmapBits(HBITMAP hbitmap, void *bits, LONG count, WORD flags)
 453 {
 454     BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
 455     LONG ret;
 456     if(!bmp) {
 457         WARN("Bad bitmap handle %08x\n", hbitmap);
 458         return FALSE;
 459     }
 460
 461     if(flags == DDB_GET)
 462         ret = X11DRV_GetBitmapBits(bmp, bits, count);
 463     else if(flags == DDB_SET)
 464         ret = X11DRV_SetBitmapBits(bmp, bits, count);
 465     else {
 466         ERR("Unknown flags value %d\n", flags);
 467         ret = 0;
 468     }
 469     GDI_ReleaseObj( hbitmap );
 470     return ret;
 471 }
 472
 473 /***********************************************************************
 474  *           X11DRV_BITMAP_DeleteObject
 475  */
 476 BOOL X11DRV_BITMAP_DeleteObject( HBITMAP hbitmap )
 477 {
 478     BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
 479     if (bmp)
 480     {
 481         TSXFreePixmap( gdi_display, (Pixmap)bmp->physBitmap );
 482         bmp->physBitmap = NULL;
 483         bmp->funcs = NULL;
 484         GDI_ReleaseObj( hbitmap );
 485     }
 486     return TRUE;
 487 }
 488
 489 /**************************************************************************
 490  *              X11DRV_BITMAP_CreateBitmapHeaderFromPixmap
 491  *
 492  *  Allocates an HBITMAP which references the Pixmap passed in.
 493  *  Note: This function makes the bitmap an owner of the Pixmap so subsequently
 494  *  calling DeleteObject on this will free the Pixmap as well.
 495  */
 496 HBITMAP X11DRV_BITMAP_CreateBitmapHeaderFromPixmap(Pixmap pixmap)
 497 {
 498     HBITMAP hBmp = 0;
 499     BITMAPOBJ *pBmp = NULL;
 500     Window root;
 501     int x,y;               /* Unused */
 502     unsigned border_width; /* Unused */
 503     unsigned int depth, width, height;
 504
 505     /* Get the Pixmap dimensions and bit depth */
 506     if ( 0 == TSXGetGeometry(gdi_display, pixmap, &root, &x, &y, &width, &height,
 507                              &border_width, &depth) )
 508         goto END;
 509
 510     TRACE("\tPixmap properties: width=%d, height=%d, depth=%d\n",
 511           width, height, depth);
 512
 513     /*
 514      * Create an HBITMAP with the same dimensions and BPP as the pixmap,
 515      * and make it a container for the pixmap passed.
 516      */
 517     hBmp = CreateBitmap( width, height, 1, depth, NULL );
 518
 519     pBmp = (BITMAPOBJ *)GDI_GetObjPtr( hBmp, BITMAP_MAGIC );
 520
 521     pBmp->funcs = X11DRV_DC_Funcs;
 522     pBmp->physBitmap = (void *)pixmap;
 523     GDI_ReleaseObj( hBmp );
 524
 525 END:
 526     TRACE("\tReturning HBITMAP %x\n", hBmp);
 527     return hBmp;
 528 }
 529
 530
 531 /**************************************************************************
 532  *              X11DRV_BITMAP_CreateBitmapFromPixmap
 533  *
 534  *  Allocates an HBITMAP and copies the Pixmap data into it.
 535  *  If bDeletePixmap is TRUE, the Pixmap passed in is deleted after the conversion.
 536  */
 537 HBITMAP X11DRV_BITMAP_CreateBitmapFromPixmap(Pixmap pixmap, BOOL bDeletePixmap)
 538 {
 539     HBITMAP hBmp = 0, hBmpCopy = 0;
 540     BITMAPOBJ *pBmp = NULL;
 541     unsigned int width, height;
 542
 543     /* Allocate an HBITMAP which references the Pixmap passed to us */
 544     hBmp = X11DRV_BITMAP_CreateBitmapHeaderFromPixmap(pixmap);
 545     if (!hBmp)
 546     {
 547         TRACE("\tCould not create bitmap header for Pixmap\n");
 548         goto END;
 549     }
 550
 551     /* Get the bitmap dimensions */
 552     width = pBmp->bitmap.bmWidth;
 553     height = pBmp->bitmap.bmHeight;
 554
 555     hBmpCopy = CopyImage(hBmp, IMAGE_BITMAP, width, height, LR_CREATEDIBSECTION);
 556
 557     /* We can now get rid of the HBITMAP wrapper we created earlier.
 558      * Note: Simply calling DeleteObject will free the embedded Pixmap as well.
 559      */
 560     if (!bDeletePixmap)
 561     {
 562         /* Manually clear the bitmap internals to prevent the Pixmap
 563          * from being deleted by DeleteObject.
 564          */
 565         pBmp->physBitmap = NULL;
 566         pBmp->funcs = NULL;
 567     }
 568     DeleteObject(hBmp);
 569
 570 END:
 571     TRACE("\tReturning HBITMAP %x\n", hBmpCopy);
 572     return hBmpCopy;
 573 }
 574
 575
 576 /**************************************************************************
 577  *                 X11DRV_BITMAP_CreatePixmapFromBitmap
 578  *
 579  *    Creates a Pixmap from a bitmap
 580  */
 581 Pixmap X11DRV_BITMAP_CreatePixmapFromBitmap( HBITMAP hBmp, HDC hdc )
 582 {
 583     HGLOBAL hPackedDIB = 0;
 584     Pixmap pixmap = 0;
 585
 586     /*
 587      * Create a packed DIB from the bitmap passed to us.
 588      * A packed DIB contains a BITMAPINFO structure followed immediately by
 589      * an optional color palette and the pixel data.
 590      */
 591     hPackedDIB = DIB_CreateDIBFromBitmap(hdc, hBmp);
 592
 593     /* Create a Pixmap from the packed DIB */
 594     pixmap = X11DRV_DIB_CreatePixmapFromDIB( hPackedDIB, hdc );
 595
 596     /* Free the temporary packed DIB */
 597     GlobalFree(hPackedDIB);
 598
 599     return pixmap;
 600 }
 601
 602
 603 /***********************************************************************
 604  *           X11DRV_BITMAP_Pixmap
 605  *
 606  * This function exists solely for x11 driver of the window system.
 607  */
 608 Pixmap X11DRV_BITMAP_Pixmap(HBITMAP hbitmap)
 609 {
 610     Pixmap pixmap;
 611     BITMAPOBJ *bmp = (BITMAPOBJ *) GDI_GetObjPtr( hbitmap, BITMAP_MAGIC );
 612     if (bmp) {
 613       pixmap = (Pixmap)bmp->physBitmap;
 614       GDI_ReleaseObj( hbitmap );
 615     }
 616     else {
 617       ERR("handle %08x returned no obj\n", hbitmap);
 618       pixmap = 0;
 619     }
 620     return pixmap;
 621 }
 622