| File: | multiVis.c |
| Location: | line 536, column 26 |
| Description: | Dereference of null pointer |
| 1 | /** ------------------------------------------------------------------------ | |||||
| 2 | This file contains functions to create a list of regions which | |||||
| 3 | tile a specified window. Each region contains all visible | |||||
| 4 | portions of the window which are drawn with the same visual. | |||||
| 5 | If the window consists of subwindows of two different visual types, | |||||
| 6 | there will be two regions in the list. The list can be traversed | |||||
| 7 | to correctly pull an image of the window using XGetImage or the | |||||
| 8 | Image Library. | |||||
| 9 | ||||||
| 10 | Copyright 1994 Hewlett-Packard Co. | |||||
| 11 | Copyright 1996, 1998 The Open Group | |||||
| 12 | ||||||
| 13 | Permission to use, copy, modify, distribute, and sell this software and its | |||||
| 14 | documentation for any purpose is hereby granted without fee, provided that | |||||
| 15 | the above copyright notice appear in all copies and that both that | |||||
| 16 | copyright notice and this permission notice appear in supporting | |||||
| 17 | documentation. | |||||
| 18 | ||||||
| 19 | The above copyright notice and this permission notice shall be included | |||||
| 20 | in all copies or substantial portions of the Software. | |||||
| 21 | ||||||
| 22 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | |||||
| 23 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |||||
| 24 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | |||||
| 25 | IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR | |||||
| 26 | OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |||||
| 27 | ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |||||
| 28 | OTHER DEALINGS IN THE SOFTWARE. | |||||
| 29 | ||||||
| 30 | Except as contained in this notice, the name of The Open Group shall | |||||
| 31 | not be used in advertising or otherwise to promote the sale, use or | |||||
| 32 | other dealings in this Software without prior written authorization | |||||
| 33 | from The Open Group. | |||||
| 34 | ||||||
| 35 | ------------------------------------------------------------------------ **/ | |||||
| 36 | ||||||
| 37 | #include <stdlib.h> | |||||
| 38 | #include <X11/Xlib.h> | |||||
| 39 | #include <X11/Xutil.h> | |||||
| 40 | #include <X11/X.h> | |||||
| 41 | #include <stdio.h> | |||||
| 42 | #include "list.h" | |||||
| 43 | #include "wsutils.h" | |||||
| 44 | #include "multiVis.h" | |||||
| 45 | /* These structures are copied from X11/region.h. For some reason | |||||
| 46 | * they're invisible from the outside. | |||||
| 47 | */ | |||||
| 48 | typedef struct { | |||||
| 49 | short x1, x2, y1, y2; | |||||
| 50 | } myBox, myBOX, myBoxRec, *myBoxPtr; | |||||
| 51 | ||||||
| 52 | typedef struct my_XRegion { | |||||
| 53 | long size; | |||||
| 54 | long numRects; | |||||
| 55 | myBOX *rects; | |||||
| 56 | myBOX extents; | |||||
| 57 | } myREGION; | |||||
| 58 | ||||||
| 59 | /* Items in long list of windows that have some part in the grabbed area */ | |||||
| 60 | typedef struct { | |||||
| 61 | Window win; | |||||
| 62 | Visual *vis; | |||||
| 63 | Colormap cmap; | |||||
| 64 | int x_rootrel, y_rootrel; /* root relative location of window */ | |||||
| 65 | int x_vis, y_vis; /* rt rel x,y of vis part, not parent clipped */ | |||||
| 66 | int width, height; /* width and height of visible part */ | |||||
| 67 | int border_width; /* border width of the window */ | |||||
| 68 | Window parent; /* id of parent (for debugging) */ | |||||
| 69 | } image_win_type; | |||||
| 70 | ||||||
| 71 | /* Items in short list of regions that tile the grabbed area. May have | |||||
| 72 | multiple windows in the region. | |||||
| 73 | */ | |||||
| 74 | typedef struct { | |||||
| 75 | Window win; /* lowest window of this visual */ | |||||
| 76 | Visual *vis; | |||||
| 77 | Colormap cmap; | |||||
| 78 | int x_rootrel, y_rootrel; /* root relative location of bottom window */ | |||||
| 79 | int x_vis, y_vis; /* rt rel x,y of vis part, not parent clipped */ | |||||
| 80 | int width, height; /* w & h of visible rect of bottom window */ | |||||
| 81 | int border; /* border width of the window */ | |||||
| 82 | Region visible_region; | |||||
| 83 | } image_region_type; | |||||
| 84 | ||||||
| 85 | /** ------------------------------------------------------------------------ | |||||
| 86 | Returns TRUE if the two structs pointed to have the same "vis" & | |||||
| 87 | "cmap" fields and s2 lies completely within s1. s1 and s2 can | |||||
| 88 | point to structs of image_win_type or image_region_type. | |||||
| 89 | ------------------------------------------------------------------------ **/ | |||||
| 90 | #define SAME_REGIONS( s1, s2)((s1)->vis == (s2)->vis && (s1)->cmap == (s2 )->cmap && (s1)->x_vis <= (s2)->x_vis && (s1)->y_vis <= (s2)->y_vis && (s1)->x_vis + (s1)->width >= (s2)->x_vis + (s2)->width && (s1)->y_vis + (s1)->height >= (s2)->y_vis + (s2) ->height) \ | |||||
| 91 | ((s1)->vis == (s2)->vis && (s1)->cmap == (s2)->cmap && \ | |||||
| 92 | (s1)->x_vis <= (s2)->x_vis && \ | |||||
| 93 | (s1)->y_vis <= (s2)->y_vis && \ | |||||
| 94 | (s1)->x_vis + (s1)->width >= (s2)->x_vis + (s2)->width && \ | |||||
| 95 | (s1)->y_vis + (s1)->height >= (s2)->y_vis + (s2)->height) | |||||
| 96 | ||||||
| 97 | #ifndef MIN | |||||
| 98 | #define MIN( a, b)((a) < (b) ? a : b) ((a) < (b) ? a : b) | |||||
| 99 | #define MAX( a, b)((a) > (b) ? a : b) ((a) > (b) ? a : b) | |||||
| 100 | #endif | |||||
| 101 | ||||||
| 102 | #define RED_SHIFT16 16 | |||||
| 103 | #define GREEN_SHIFT8 8 | |||||
| 104 | #define BLUE_SHIFT0 0 | |||||
| 105 | ||||||
| 106 | /* | |||||
| 107 | extern list_ptr new_list(); | |||||
| 108 | extern list_ptr dup_list_head(); | |||||
| 109 | extern void * first_in_list(); | |||||
| 110 | extern void * next_in_list(); | |||||
| 111 | extern int add_to_list(); | |||||
| 112 | extern void zero_list(); | |||||
| 113 | extern void delete_list(); | |||||
| 114 | extern void delete_list_destroying(); | |||||
| 115 | extern unsigned int list_length(); | |||||
| 116 | */ | |||||
| 117 | ||||||
| 118 | /* Prototype Declarations for Static Functions */ | |||||
| 119 | static void QueryColorMap( | |||||
| 120 | Display *, Colormap , Visual *, | |||||
| 121 | XColor **, int *, int *, int * | |||||
| 122 | ); | |||||
| 123 | static void TransferImage( | |||||
| 124 | Display *, XImage *,int, int , image_region_type*, | |||||
| 125 | XImage *,int ,int | |||||
| 126 | ); | |||||
| 127 | static XImage * ReadRegionsInList( | |||||
| 128 | Display *, Visual *, int, int, unsigned int, | |||||
| 129 | unsigned int, XRectangle, list_ptr | |||||
| 130 | ); | |||||
| 131 | ||||||
| 132 | static list_ptr make_region_list( | |||||
| 133 | Display*, Window, XRectangle*, | |||||
| 134 | int*, int, XVisualInfo**, int * | |||||
| 135 | ); | |||||
| 136 | ||||||
| 137 | static void destroy_region_list( | |||||
| 138 | list_ptr | |||||
| 139 | ) ; | |||||
| 140 | static void subtr_rect_from_image_region( | |||||
| 141 | image_region_type *, int , int , int , int | |||||
| 142 | ); | |||||
| 143 | static void add_rect_to_image_region( | |||||
| 144 | image_region_type *, | |||||
| 145 | int , int , int , int | |||||
| 146 | ); | |||||
| 147 | static int src_in_region_list( | |||||
| 148 | image_win_type *, list_ptr | |||||
| 149 | ); | |||||
| 150 | static void add_window_to_list( | |||||
| 151 | list_ptr, Window, int, int , | |||||
| 152 | int , int , int , int, int, | |||||
| 153 | Visual*, Colormap, Window | |||||
| 154 | ); | |||||
| 155 | static int src_in_image( | |||||
| 156 | image_win_type *, int , XVisualInfo** | |||||
| 157 | ); | |||||
| 158 | static int src_in_overlay( | |||||
| 159 | image_region_type *, int, OverlayInfo *, int*, int* | |||||
| 160 | ); | |||||
| 161 | static void make_src_list( | |||||
| 162 | Display *, list_ptr, XRectangle *, Window, | |||||
| 163 | int, int, XWindowAttributes *, XRectangle * | |||||
| 164 | ); | |||||
| 165 | static void destroy_image_region( | |||||
| 166 | image_region_type * | |||||
| 167 | ); | |||||
| 168 | ||||||
| 169 | /* End of Prototype Declarations */ | |||||
| 170 | ||||||
| 171 | void initFakeVisual(Visual *Vis) | |||||
| 172 | { | |||||
| 173 | Vis->ext_data=NULL((void*)0); | |||||
| 174 | Vis->class = DirectColor5 ; | |||||
| 175 | Vis->red_mask = 0x00FF0000; | |||||
| 176 | Vis->green_mask = 0x0000FF00 ; | |||||
| 177 | Vis->blue_mask = 0x000000FF ; | |||||
| 178 | Vis->map_entries = 256 ; | |||||
| 179 | Vis->bits_per_rgb = 8 ; | |||||
| 180 | } | |||||
| 181 | ||||||
| 182 | static void | |||||
| 183 | QueryColorMap(Display *disp, Colormap src_cmap, Visual *src_vis, | |||||
| 184 | XColor **src_colors, int *rShift, int *gShift, int *bShift) | |||||
| 185 | { | |||||
| 186 | unsigned int ncolors,i ; | |||||
| 187 | unsigned long redMask, greenMask, blueMask; | |||||
| 188 | int redShift, greenShift, blueShift; | |||||
| 189 | XColor *colors ; | |||||
| 190 | ||||||
| 191 | ncolors = (unsigned) src_vis->map_entries ; | |||||
| 192 | *src_colors = colors = (XColor *)malloc(ncolors * sizeof(XColor) ) ; | |||||
| 193 | ||||||
| 194 | if(src_vis->class != TrueColor4 && src_vis->class != DirectColor5) | |||||
| 195 | { | |||||
| 196 | for(i=0 ; i < ncolors ; i++) | |||||
| 197 | { | |||||
| 198 | colors[i].pixel = i ; | |||||
| 199 | colors[i].pad = 0; | |||||
| 200 | colors[i].flags = DoRed(1<<0)|DoGreen(1<<1)|DoBlue(1<<2); | |||||
| 201 | } | |||||
| 202 | } | |||||
| 203 | else /** src is decomposed rgb ***/ | |||||
| 204 | { | |||||
| 205 | /* Get the X colormap */ | |||||
| 206 | redMask = src_vis->red_mask; | |||||
| 207 | greenMask = src_vis->green_mask; | |||||
| 208 | blueMask = src_vis->blue_mask; | |||||
| 209 | redShift = 0; while (!(redMask&0x1)) { | |||||
| 210 | redShift++; | |||||
| 211 | redMask = redMask>>1; | |||||
| 212 | } | |||||
| 213 | greenShift = 0; while (!(greenMask&0x1)) { | |||||
| 214 | greenShift++; | |||||
| 215 | greenMask = greenMask>>1; | |||||
| 216 | } | |||||
| 217 | blueShift = 0; while (!(blueMask&0x1)) { | |||||
| 218 | blueShift++; | |||||
| 219 | blueMask = blueMask>>1; | |||||
| 220 | } | |||||
| 221 | *rShift = redShift ; | |||||
| 222 | *gShift = greenShift ; | |||||
| 223 | *bShift = blueShift ; | |||||
| 224 | for (i=0; i<ncolors; i++) { | |||||
| 225 | if( i <= redMask)colors[i].pixel = (i<<redShift) ; | |||||
| 226 | if( i <= greenMask)colors[i].pixel |= (i<<greenShift) ; | |||||
| 227 | if( i <= blueMask)colors[i].pixel |= (i<<blueShift) ; | |||||
| 228 | /***** example :for gecko's 3-3-2 map, blue index should be <= 3. | |||||
| 229 | colors[i].pixel = (i<<redShift)|(i<<greenShift)|(i<<blueShift); | |||||
| 230 | *****/ | |||||
| 231 | colors[i].pad = 0; | |||||
| 232 | colors[i].flags = DoRed(1<<0)|DoGreen(1<<1)|DoBlue(1<<2); | |||||
| 233 | } | |||||
| 234 | } | |||||
| 235 | ||||||
| 236 | XQueryColors(disp, src_cmap, colors, (int) ncolors); | |||||
| 237 | } | |||||
| 238 | ||||||
| 239 | int | |||||
| 240 | GetMultiVisualRegions(Display *disp, | |||||
| 241 | /* root win on which grab was done */ | |||||
| 242 | Window srcRootWinid, | |||||
| 243 | /* root rel UL corner of bounding box of grab */ | |||||
| 244 | int x, int y, | |||||
| 245 | /* size of bounding box of grab */ | |||||
| 246 | unsigned int width, unsigned int height, | |||||
| 247 | int *transparentOverlays, int *numVisuals, | |||||
| 248 | XVisualInfo **pVisuals, int *numOverlayVisuals, | |||||
| 249 | OverlayInfo **pOverlayVisuals, | |||||
| 250 | int *numImageVisuals, XVisualInfo ***pImageVisuals, | |||||
| 251 | /* list of regions to read from */ | |||||
| 252 | list_ptr *vis_regions, | |||||
| 253 | list_ptr *vis_image_regions, int *allImage) | |||||
| 254 | { | |||||
| 255 | int hasNonDefault; | |||||
| 256 | XRectangle bbox; /* bounding box of grabbed area */ | |||||
| 257 | ||||||
| 258 | ||||||
| 259 | bbox.x = x; /* init X rect for bounding box */ | |||||
| 260 | bbox.y = y; | |||||
| 261 | bbox.width = width; | |||||
| 262 | bbox.height = height; | |||||
| 263 | ||||||
| 264 | GetXVisualInfo(disp,DefaultScreen(disp)(((_XPrivDisplay)(disp))->default_screen), | |||||
| 265 | transparentOverlays, | |||||
| 266 | numVisuals, pVisuals, | |||||
| 267 | numOverlayVisuals, pOverlayVisuals, | |||||
| 268 | numImageVisuals, pImageVisuals); | |||||
| 269 | ||||||
| 270 | *vis_regions = *vis_image_regions = NULL((void*)0) ; | |||||
| 271 | if ((*vis_regions = make_region_list( disp, srcRootWinid, &bbox, | |||||
| 272 | &hasNonDefault, *numImageVisuals, | |||||
| 273 | *pImageVisuals, allImage)) == NULL((void*)0)) | |||||
| 274 | return 0 ; | |||||
| 275 | ||||||
| 276 | if (*transparentOverlays) | |||||
| 277 | { | |||||
| 278 | *allImage = 1; /* until proven otherwise, | |||||
| 279 | this flags that it to be an image only list */ | |||||
| 280 | *vis_image_regions = | |||||
| 281 | make_region_list( disp, srcRootWinid, &bbox, &hasNonDefault, | |||||
| 282 | *numImageVisuals, *pImageVisuals, allImage); | |||||
| 283 | } | |||||
| 284 | ||||||
| 285 | /* if there is a second region in any of the two lists return 1 **/ | |||||
| 286 | if ( ( *vis_regions && (*vis_regions)->next && (*vis_regions)->next->next ) || | |||||
| 287 | ( *vis_image_regions && (*vis_image_regions)->next && | |||||
| 288 | (*vis_image_regions)->next->next ) ) return 1 ; | |||||
| 289 | else return 0 ; | |||||
| 290 | ||||||
| 291 | } | |||||
| 292 | ||||||
| 293 | static void TransferImage(Display *disp, XImage *reg_image, | |||||
| 294 | int srcw, int srch, | |||||
| 295 | image_region_type *reg, XImage *target_image, | |||||
| 296 | int dst_x, int dst_y) | |||||
| 297 | { | |||||
| 298 | int i,j,old_pixel,new_pixel,red_ind,green_ind,blue_ind ; | |||||
| 299 | XColor *colors; | |||||
| 300 | int rShift = 0, gShift = 0, bShift = 0; | |||||
| 301 | ||||||
| 302 | QueryColorMap(disp,reg->cmap,reg->vis,&colors, | |||||
| 303 | &rShift,&gShift,&bShift) ; | |||||
| 304 | ||||||
| 305 | switch (reg->vis->class) { | |||||
| 306 | case TrueColor4 : | |||||
| 307 | for(i=0 ; i < srch ; i++) | |||||
| 308 | { | |||||
| 309 | for(j=0 ; j < srcw ; j++) | |||||
| 310 | { | |||||
| 311 | old_pixel = XGetPixel(reg_image,j,i)((*((reg_image)->f.get_pixel))((reg_image), (j), (i))) ; | |||||
| 312 | ||||||
| 313 | if( reg->vis->map_entries == 16) { | |||||
| 314 | ||||||
| 315 | red_ind = (old_pixel & reg->vis->red_mask) >> rShift ; | |||||
| 316 | green_ind = (old_pixel & reg->vis->green_mask) >> gShift ; | |||||
| 317 | blue_ind = (old_pixel & reg->vis->blue_mask) >> bShift ; | |||||
| 318 | ||||||
| 319 | new_pixel = ( | |||||
| 320 | ((colors[red_ind].red >> 8) << RED_SHIFT16) | |||||
| 321 | |((colors[green_ind].green >> 8) << GREEN_SHIFT8) | |||||
| 322 | |((colors[blue_ind].blue >> 8) << BLUE_SHIFT0) | |||||
| 323 | ); | |||||
| 324 | } | |||||
| 325 | else | |||||
| 326 | new_pixel = old_pixel; | |||||
| 327 | ||||||
| 328 | XPutPixel(target_image,dst_x+j, dst_y+i,new_pixel)((*((target_image)->f.put_pixel))((target_image), (dst_x+j ), (dst_y+i), (new_pixel))); | |||||
| 329 | ||||||
| 330 | } | |||||
| 331 | } | |||||
| 332 | break; | |||||
| 333 | case DirectColor5 : | |||||
| 334 | for(i=0 ; i < srch ; i++) | |||||
| 335 | { | |||||
| 336 | ||||||
| 337 | for(j=0 ; j < srcw ; j++) | |||||
| 338 | { | |||||
| 339 | old_pixel = XGetPixel(reg_image,j,i)((*((reg_image)->f.get_pixel))((reg_image), (j), (i))) ; | |||||
| 340 | red_ind = (old_pixel & reg->vis->red_mask) >> rShift ; | |||||
| 341 | green_ind = (old_pixel & reg->vis->green_mask) >> gShift ; | |||||
| 342 | blue_ind = (old_pixel & reg->vis->blue_mask) >> bShift ; | |||||
| 343 | ||||||
| 344 | new_pixel = ( | |||||
| 345 | ((colors[red_ind].red >> 8) << RED_SHIFT16) | |||||
| 346 | |((colors[green_ind].green >> 8) << GREEN_SHIFT8) | |||||
| 347 | |((colors[blue_ind].blue >> 8) << BLUE_SHIFT0) | |||||
| 348 | ); | |||||
| 349 | XPutPixel(target_image,dst_x+j, dst_y+i,new_pixel)((*((target_image)->f.put_pixel))((target_image), (dst_x+j ), (dst_y+i), (new_pixel))); | |||||
| 350 | ||||||
| 351 | } | |||||
| 352 | } | |||||
| 353 | break; | |||||
| 354 | default : | |||||
| 355 | for(i=0 ; i < srch ; i++) | |||||
| 356 | { | |||||
| 357 | for(j=0 ; j < srcw ; j++) | |||||
| 358 | { | |||||
| 359 | old_pixel = XGetPixel(reg_image,j,i)((*((reg_image)->f.get_pixel))((reg_image), (j), (i))) ; | |||||
| 360 | ||||||
| 361 | new_pixel = ( | |||||
| 362 | ((colors[old_pixel].red >> 8) << RED_SHIFT16) | |||||
| 363 | |((colors[old_pixel].green >> 8) << GREEN_SHIFT8) | |||||
| 364 | |((colors[old_pixel].blue >> 8) << BLUE_SHIFT0) | |||||
| 365 | ); | |||||
| 366 | XPutPixel(target_image,dst_x+j, dst_y+i,new_pixel)((*((target_image)->f.put_pixel))((target_image), (dst_x+j ), (dst_y+i), (new_pixel))); | |||||
| 367 | ||||||
| 368 | } | |||||
| 369 | } | |||||
| 370 | break; | |||||
| 371 | } | |||||
| 372 | } | |||||
| 373 | ||||||
| 374 | static XImage * | |||||
| 375 | ReadRegionsInList(Display *disp, Visual *fakeVis, int depth, int format, | |||||
| 376 | unsigned int width, unsigned int height, | |||||
| 377 | XRectangle bbox, /* bounding box of grabbed area */ | |||||
| 378 | list_ptr regions) /* list of regions to read from */ | |||||
| 379 | { | |||||
| 380 | image_region_type *reg; | |||||
| 381 | int dst_x, dst_y; /* where in pixmap to write (UL) */ | |||||
| 382 | int diff; | |||||
| 383 | ||||||
| 384 | XImage *reg_image,*ximage ; | |||||
| 385 | int srcRect_x,srcRect_y,srcRect_width,srcRect_height ; | |||||
| 386 | int bytes_per_line; | |||||
| 387 | ||||||
| 388 | ximage = XCreateImage(disp,fakeVis,depth,format,0,NULL((void*)0),width,height, | |||||
| 389 | 8,0) ; | |||||
| 390 | bytes_per_line = ximage->bytes_per_line; | |||||
| 391 | ||||||
| 392 | if (format == ZPixmap2) | |||||
| 393 | ximage->data = malloc(height*bytes_per_line); | |||||
| 394 | else | |||||
| 395 | ximage->data = malloc(height*bytes_per_line*depth); | |||||
| 396 | ||||||
| 397 | ximage->bits_per_pixel = depth; /** Valid only if format is ZPixmap ***/ | |||||
| 398 | ||||||
| 399 | for (reg = (image_region_type *) first_in_list( regions); reg; | |||||
| 400 | reg = (image_region_type *) next_in_list( regions)) | |||||
| 401 | { | |||||
| 402 | int rect; | |||||
| 403 | struct my_XRegion *vis_reg; | |||||
| 404 | vis_reg = (struct my_XRegion *)(reg->visible_region); | |||||
| 405 | for (rect = 0; | |||||
| 406 | rect < vis_reg->numRects; | |||||
| 407 | rect++) | |||||
| 408 | { | |||||
| 409 | /** ------------------------------------------------------------------------ | |||||
| 410 | Intersect bbox with visible part of region giving src rect & output | |||||
| 411 | location. Width is the min right side minus the max left side. | |||||
| 412 | Similar for height. Offset src rect so x,y are relative to | |||||
| 413 | origin of win, not the root-relative visible rect of win. | |||||
| 414 | ------------------------------------------------------------------------ **/ | |||||
| 415 | srcRect_width = MIN( vis_reg->rects[rect].x2, bbox.width + bbox.x)((vis_reg->rects[rect].x2) < (bbox.width + bbox.x) ? vis_reg ->rects[rect].x2 : bbox.width + bbox.x) - | |||||
| 416 | MAX( vis_reg->rects[rect].x1, bbox.x)((vis_reg->rects[rect].x1) > (bbox.x) ? vis_reg->rects [rect].x1 : bbox.x); | |||||
| 417 | srcRect_height = MIN( vis_reg->rects[rect].y2, bbox.height + bbox.y)((vis_reg->rects[rect].y2) < (bbox.height + bbox.y) ? vis_reg ->rects[rect].y2 : bbox.height + bbox.y) - | |||||
| 418 | MAX( vis_reg->rects[rect].y1, bbox.y)((vis_reg->rects[rect].y1) > (bbox.y) ? vis_reg->rects [rect].y1 : bbox.y); | |||||
| 419 | diff = bbox.x - vis_reg->rects[rect].x1; | |||||
| 420 | srcRect_x = MAX( 0, diff)((0) > (diff) ? 0 : diff) + (vis_reg->rects[rect].x1 - reg->x_rootrel - reg->border); | |||||
| 421 | dst_x = MAX( 0, -diff)((0) > (-diff) ? 0 : -diff) ; | |||||
| 422 | diff = bbox.y - vis_reg->rects[rect].y1; | |||||
| 423 | srcRect_y = MAX( 0, diff)((0) > (diff) ? 0 : diff) + (vis_reg->rects[rect].y1 - reg->y_rootrel - reg->border); | |||||
| 424 | dst_y = MAX( 0, -diff)((0) > (-diff) ? 0 : -diff) ; | |||||
| 425 | reg_image = XGetImage(disp,reg->win,srcRect_x,srcRect_y, | |||||
| 426 | srcRect_width,srcRect_height,AllPlanes((unsigned long)~0L),format) ; | |||||
| 427 | TransferImage(disp,reg_image,srcRect_width, | |||||
| 428 | srcRect_height,reg,ximage,dst_x,dst_y) ; | |||||
| 429 | } | |||||
| 430 | } | |||||
| 431 | return ximage ; | |||||
| 432 | } | |||||
| 433 | ||||||
| 434 | ||||||
| 435 | /** ------------------------------------------------------------------------ | |||||
| 436 | ------------------------------------------------------------------------ **/ | |||||
| 437 | ||||||
| 438 | XImage *ReadAreaToImage(Display *disp, | |||||
| 439 | /* root win on which grab was done */ | |||||
| 440 | Window srcRootWinid, | |||||
| 441 | /* root rel UL corner of bounding box of grab */ | |||||
| 442 | int x, int y, | |||||
| 443 | /* size of bounding box of grab */ | |||||
| 444 | unsigned int width, unsigned int height, | |||||
| 445 | int numVisuals, XVisualInfo *pVisuals, | |||||
| 446 | int numOverlayVisuals, OverlayInfo *pOverlayVisuals, | |||||
| 447 | int numImageVisuals, XVisualInfo **pImageVisuals, | |||||
| 448 | /* list of regions to read from */ | |||||
| 449 | list_ptr vis_regions, | |||||
| 450 | /* list of regions to read from */ | |||||
| 451 | list_ptr vis_image_regions, | |||||
| 452 | int format, int allImage) | |||||
| 453 | { | |||||
| 454 | image_region_type *reg; | |||||
| 455 | XRectangle bbox; /* bounding box of grabbed area */ | |||||
| 456 | int depth ; | |||||
| 457 | XImage *ximage, *ximage_ipm = NULL((void*)0); | |||||
| ||||||
| 458 | Visual fakeVis ; | |||||
| 459 | int x1, y1; | |||||
| 460 | XImage *image; | |||||
| 461 | #if 0 | |||||
| 462 | unsigned char *pmData , *ipmData ; | |||||
| 463 | #endif | |||||
| 464 | int transparentColor, transparentType; | |||||
| 465 | int srcRect_x,srcRect_y,srcRect_width,srcRect_height ; | |||||
| 466 | int diff ; | |||||
| 467 | int dst_x, dst_y; /* where in pixmap to write (UL) */ | |||||
| 468 | int pixel; | |||||
| 469 | ||||||
| 470 | bbox.x = x; /* init X rect for bounding box */ | |||||
| 471 | bbox.y = y; | |||||
| 472 | bbox.width = width; | |||||
| 473 | bbox.height = height; | |||||
| 474 | ||||||
| 475 | ||||||
| 476 | initFakeVisual(&fakeVis) ; | |||||
| 477 | ||||||
| 478 | depth = 24 ; | |||||
| 479 | ximage = ReadRegionsInList(disp,&fakeVis,depth,format,width,height, | |||||
| 480 | bbox,vis_regions) ; | |||||
| 481 | #if 0 | |||||
| 482 | pmData = (unsigned char *)ximage -> data ; | |||||
| 483 | #endif | |||||
| 484 | ||||||
| 485 | /* if transparency possible do it again, but this time for image planes only */ | |||||
| 486 | if (vis_image_regions && (vis_image_regions->next) && !allImage) | |||||
| 487 | { | |||||
| 488 | ximage_ipm = ReadRegionsInList(disp,&fakeVis,depth,format,width,height, | |||||
| 489 | bbox,vis_image_regions) ; | |||||
| 490 | #if 0 | |||||
| 491 | ipmData = (unsigned char *)ximage_ipm -> data ; | |||||
| 492 | #endif | |||||
| 493 | } | |||||
| 494 | /* Now tranverse the overlay visual windows and test for transparency index. */ | |||||
| 495 | /* If you find one, subsitute the value from the matching image plane pixmap. */ | |||||
| 496 | ||||||
| 497 | for (reg = (image_region_type *) first_in_list( vis_regions); reg; | |||||
| 498 | reg = (image_region_type *) next_in_list( vis_regions)) | |||||
| 499 | { | |||||
| 500 | ||||||
| 501 | if (src_in_overlay( reg, numOverlayVisuals, pOverlayVisuals, | |||||
| 502 | &transparentColor, &transparentType)) | |||||
| 503 | { | |||||
| 504 | int test = 0 ; | |||||
| 505 | srcRect_width = MIN( reg->width + reg->x_vis, bbox.width + bbox.x)((reg->width + reg->x_vis) < (bbox.width + bbox.x) ? reg->width + reg->x_vis : bbox.width + bbox.x) | |||||
| 506 | - MAX( reg->x_vis, bbox.x)((reg->x_vis) > (bbox.x) ? reg->x_vis : bbox.x); | |||||
| 507 | srcRect_height = MIN( reg->height + reg->y_vis, bbox.height((reg->height + reg->y_vis) < (bbox.height + bbox.y) ? reg->height + reg->y_vis : bbox.height + bbox.y) | |||||
| 508 | + bbox.y)((reg->height + reg->y_vis) < (bbox.height + bbox.y) ? reg->height + reg->y_vis : bbox.height + bbox.y) - MAX( reg->y_vis, bbox.y)((reg->y_vis) > (bbox.y) ? reg->y_vis : bbox.y); | |||||
| 509 | diff = bbox.x - reg->x_vis; | |||||
| 510 | srcRect_x = MAX( 0, diff)((0) > (diff) ? 0 : diff) + (reg->x_vis - reg->x_rootrel - reg->border); | |||||
| 511 | dst_x = MAX( 0, -diff)((0) > (-diff) ? 0 : -diff) ; | |||||
| 512 | diff = bbox.y - reg->y_vis; | |||||
| 513 | srcRect_y = MAX( 0, diff)((0) > (diff) ? 0 : diff) + (reg->y_vis - reg->y_rootrel - reg->border); | |||||
| 514 | dst_y = MAX( 0, -diff)((0) > (-diff) ? 0 : -diff) ; | |||||
| 515 | /* let's test some pixels for transparency */ | |||||
| 516 | image = XGetImage(disp, reg->win, srcRect_x, srcRect_y, | |||||
| 517 | srcRect_width, srcRect_height, 0xffffffff, ZPixmap2); | |||||
| 518 | ||||||
| 519 | /* let's assume byte per pixel for overlay image for now */ | |||||
| 520 | if ((image->depth == 8) && (transparentType == TransparentPixel1)) | |||||
| 521 | { | |||||
| 522 | unsigned char *pixel_ptr; | |||||
| 523 | unsigned char *start_of_line = (unsigned char *) image->data; | |||||
| 524 | ||||||
| 525 | for (y1 = 0; y1 < srcRect_height; y1++) { | |||||
| 526 | pixel_ptr = start_of_line; | |||||
| 527 | for (x1 = 0; x1 < srcRect_width; x1++) | |||||
| 528 | { | |||||
| 529 | if (*pixel_ptr++ == transparentColor) | |||||
| 530 | { | |||||
| 531 | #if 0 | |||||
| 532 | *pmData++ = *ipmData++; | |||||
| 533 | *pmData++ = *ipmData++; | |||||
| 534 | *pmData++ = *ipmData++; | |||||
| 535 | #endif | |||||
| 536 | pixel = XGetPixel(ximage_ipm,dst_x+x1,dst_y+y1)((*((ximage_ipm)->f.get_pixel))((ximage_ipm), (dst_x+x1), ( dst_y+y1))) ; | |||||
| ||||||
| 537 | XPutPixel(ximage,dst_x+x1, dst_y+y1,pixel)((*((ximage)->f.put_pixel))((ximage), (dst_x+x1), (dst_y+y1 ), (pixel))); | |||||
| 538 | ||||||
| 539 | if(!test){ | |||||
| 540 | test = 1 ; | |||||
| 541 | } | |||||
| 542 | } | |||||
| 543 | #if 0 | |||||
| 544 | else { | |||||
| 545 | pmData +=3; | |||||
| 546 | ipmData +=3; | |||||
| 547 | } | |||||
| 548 | #endif | |||||
| 549 | } | |||||
| 550 | start_of_line += image->bytes_per_line; | |||||
| 551 | } | |||||
| 552 | } else { | |||||
| 553 | if (transparentType == TransparentPixel1) { | |||||
| 554 | for (y1 = 0; y1 < srcRect_height; y1++) { | |||||
| 555 | for (x1 = 0; x1 < srcRect_width; x1++) | |||||
| 556 | { | |||||
| 557 | int pixel_value = XGetPixel(image, x1, y1)((*((image)->f.get_pixel))((image), (x1), (y1))); | |||||
| 558 | if (pixel_value == transparentColor) | |||||
| 559 | { | |||||
| 560 | #if 0 | |||||
| 561 | *pmData++ = *ipmData++; | |||||
| 562 | *pmData++ = *ipmData++; | |||||
| 563 | *pmData++ = *ipmData++; | |||||
| 564 | #endif | |||||
| 565 | pixel = XGetPixel(ximage_ipm,dst_x+x1,dst_y+y1)((*((ximage_ipm)->f.get_pixel))((ximage_ipm), (dst_x+x1), ( dst_y+y1))) ; | |||||
| 566 | XPutPixel(ximage,dst_x+x1, dst_y+y1,pixel)((*((ximage)->f.put_pixel))((ximage), (dst_x+x1), (dst_y+y1 ), (pixel))); | |||||
| 567 | if(!test){ | |||||
| 568 | test = 1 ; | |||||
| 569 | } | |||||
| 570 | } | |||||
| 571 | #if 0 | |||||
| 572 | else { | |||||
| 573 | pmData +=3; | |||||
| 574 | ipmData +=3; | |||||
| 575 | } | |||||
| 576 | #endif | |||||
| 577 | } | |||||
| 578 | } | |||||
| 579 | } else { | |||||
| 580 | for (y1 = 0; y1 < srcRect_height; y1++) { | |||||
| 581 | for (x1 = 0; x1 < srcRect_width; x1++) | |||||
| 582 | { | |||||
| 583 | int pixel_value = XGetPixel(image, x1, y1)((*((image)->f.get_pixel))((image), (x1), (y1))); | |||||
| 584 | if (pixel_value & transparentColor) | |||||
| 585 | { | |||||
| 586 | #if 0 | |||||
| 587 | *pmData++ = *ipmData++; | |||||
| 588 | *pmData++ = *ipmData++; | |||||
| 589 | *pmData++ = *ipmData++; | |||||
| 590 | #endif | |||||
| 591 | pixel = XGetPixel(ximage_ipm,dst_x+x1,dst_y+y1)((*((ximage_ipm)->f.get_pixel))((ximage_ipm), (dst_x+x1), ( dst_y+y1))) ; | |||||
| 592 | XPutPixel(ximage,dst_x+x1, dst_y+y1,pixel)((*((ximage)->f.put_pixel))((ximage), (dst_x+x1), (dst_y+y1 ), (pixel))); | |||||
| 593 | if(!test){ | |||||
| 594 | test = 1 ; | |||||
| 595 | } | |||||
| 596 | } | |||||
| 597 | #if 0 | |||||
| 598 | else { | |||||
| 599 | pmData +=3; | |||||
| 600 | ipmData +=3; | |||||
| 601 | } | |||||
| 602 | #endif | |||||
| 603 | } | |||||
| 604 | } | |||||
| 605 | } | |||||
| 606 | } | |||||
| 607 | XDestroyImage (image)((*((image)->f.destroy_image))((image))); | |||||
| 608 | } /* end of src_in_overlay */ | |||||
| 609 | } /** end transparency **/ | |||||
| 610 | destroy_region_list( vis_regions); | |||||
| 611 | if (vis_image_regions) destroy_region_list( vis_image_regions ); | |||||
| 612 | FreeXVisualInfo(pVisuals, pOverlayVisuals, pImageVisuals); | |||||
| 613 | XSync(disp, 0); | |||||
| 614 | ||||||
| 615 | return ximage; | |||||
| 616 | } | |||||
| 617 | ||||||
| 618 | /** ------------------------------------------------------------------------ | |||||
| 619 | Creates a list of the subwindows of a given window which have a | |||||
| 620 | different visual than their parents. The function is recursive. | |||||
| 621 | This list is used in make_region_list(), which coalesces the | |||||
| 622 | windows with the same visual into a region. | |||||
| 623 | image_wins must point to an existing list struct that's already | |||||
| 624 | been zeroed (zero_list()). | |||||
| 625 | ------------------------------------------------------------------------ **/ | |||||
| 626 | static void make_src_list(Display *disp, list_ptr image_wins, | |||||
| 627 | /* bnding box of area we want */ | |||||
| 628 | XRectangle *bbox, | |||||
| 629 | Window curr, | |||||
| 630 | /* pos of curr WRT root */ | |||||
| 631 | int x_rootrel, int y_rootrel, | |||||
| 632 | XWindowAttributes *curr_attrs, | |||||
| 633 | /* visible part of curr, not obscurred by ancestors */ | |||||
| 634 | XRectangle *pclip) | |||||
| 635 | { | |||||
| 636 | XWindowAttributes child_attrs; | |||||
| 637 | Window root, parent, *child; /* variables for XQueryTree() */ | |||||
| 638 | Window *save_child_list; /* variables for XQueryTree() */ | |||||
| 639 | unsigned int nchild; /* variables for XQueryTree() */ | |||||
| 640 | XRectangle child_clip; /* vis part of child */ | |||||
| 641 | int curr_clipX, curr_clipY, curr_clipRt, curr_clipBt; | |||||
| 642 | ||||||
| 643 | /* check that win is mapped & not outside bounding box */ | |||||
| 644 | if (curr_attrs->map_state == IsViewable2 && | |||||
| 645 | curr_attrs->class == InputOutput1 && | |||||
| 646 | !( pclip->x >= (int) (bbox->x + bbox->width) || | |||||
| 647 | pclip->y >= (int) (bbox->y + bbox->height) || | |||||
| 648 | (int) (pclip->x + pclip->width) <= bbox->x || | |||||
| 649 | (int) (pclip->y + pclip->height) <= bbox->y)) { | |||||
| 650 | ||||||
| 651 | XQueryTree( disp, curr, &root, &parent, &child, &nchild ); | |||||
| 652 | save_child_list = child; /* so we can free list when we're done */ | |||||
| 653 | add_window_to_list( image_wins, curr, x_rootrel, y_rootrel, | |||||
| 654 | pclip->x, pclip->y, | |||||
| 655 | pclip->width, pclip->height, | |||||
| 656 | curr_attrs->border_width,curr_attrs->visual, | |||||
| 657 | curr_attrs->colormap, parent); | |||||
| 658 | ||||||
| 659 | ||||||
| 660 | /** ------------------------------------------------------------------------ | |||||
| 661 | set RR coords of right (Rt), left (X), bottom (Bt) and top (Y) | |||||
| 662 | of rect we clip all children by. This is our own clip rect (pclip) | |||||
| 663 | inflicted on us by our parent plus our own borders. Within the | |||||
| 664 | child loop, we figure the clip rect for each child by adding in | |||||
| 665 | it's rectangle (not taking into account the child's borders). | |||||
| 666 | ------------------------------------------------------------------------ **/ | |||||
| 667 | curr_clipX = MAX( pclip->x, x_rootrel + (int) curr_attrs->border_width)((pclip->x) > (x_rootrel + (int) curr_attrs->border_width ) ? pclip->x : x_rootrel + (int) curr_attrs->border_width ); | |||||
| 668 | curr_clipY = MAX( pclip->y, y_rootrel + (int) curr_attrs->border_width)((pclip->y) > (y_rootrel + (int) curr_attrs->border_width ) ? pclip->y : y_rootrel + (int) curr_attrs->border_width ); | |||||
| 669 | curr_clipRt = MIN( pclip->x + (int) pclip->width,((pclip->x + (int) pclip->width) < (x_rootrel + (int ) curr_attrs->width + 2 * (int) curr_attrs->border_width ) ? pclip->x + (int) pclip->width : x_rootrel + (int) curr_attrs ->width + 2 * (int) curr_attrs->border_width) | |||||
| 670 | x_rootrel + (int) curr_attrs->width +((pclip->x + (int) pclip->width) < (x_rootrel + (int ) curr_attrs->width + 2 * (int) curr_attrs->border_width ) ? pclip->x + (int) pclip->width : x_rootrel + (int) curr_attrs ->width + 2 * (int) curr_attrs->border_width) | |||||
| 671 | 2 * (int) curr_attrs->border_width)((pclip->x + (int) pclip->width) < (x_rootrel + (int ) curr_attrs->width + 2 * (int) curr_attrs->border_width ) ? pclip->x + (int) pclip->width : x_rootrel + (int) curr_attrs ->width + 2 * (int) curr_attrs->border_width); | |||||
| 672 | curr_clipBt = MIN( pclip->y + (int) pclip->height,((pclip->y + (int) pclip->height) < (y_rootrel + (int ) curr_attrs->height + 2 * (int) curr_attrs->border_width ) ? pclip->y + (int) pclip->height : y_rootrel + (int) curr_attrs ->height + 2 * (int) curr_attrs->border_width) | |||||
| 673 | y_rootrel + (int) curr_attrs->height +((pclip->y + (int) pclip->height) < (y_rootrel + (int ) curr_attrs->height + 2 * (int) curr_attrs->border_width ) ? pclip->y + (int) pclip->height : y_rootrel + (int) curr_attrs ->height + 2 * (int) curr_attrs->border_width) | |||||
| 674 | 2 * (int) curr_attrs->border_width)((pclip->y + (int) pclip->height) < (y_rootrel + (int ) curr_attrs->height + 2 * (int) curr_attrs->border_width ) ? pclip->y + (int) pclip->height : y_rootrel + (int) curr_attrs ->height + 2 * (int) curr_attrs->border_width); | |||||
| 675 | ||||||
| 676 | while (nchild--) { | |||||
| 677 | int new_width, new_height; | |||||
| 678 | int child_xrr, child_yrr; /* root relative x & y of child */ | |||||
| 679 | ||||||
| 680 | XGetWindowAttributes( disp, *child, &child_attrs); | |||||
| 681 | ||||||
| 682 | /* intersect parent & child clip rects */ | |||||
| 683 | child_xrr = x_rootrel + child_attrs.x + curr_attrs->border_width; | |||||
| 684 | child_clip.x = MAX( curr_clipX, child_xrr)((curr_clipX) > (child_xrr) ? curr_clipX : child_xrr); | |||||
| 685 | new_width = MIN( curr_clipRt, child_xrr + (int) child_attrs.width((curr_clipRt) < (child_xrr + (int) child_attrs.width + 2 * child_attrs.border_width) ? curr_clipRt : child_xrr + (int) child_attrs .width + 2 * child_attrs.border_width) | |||||
| 686 | + 2 * child_attrs.border_width)((curr_clipRt) < (child_xrr + (int) child_attrs.width + 2 * child_attrs.border_width) ? curr_clipRt : child_xrr + (int) child_attrs .width + 2 * child_attrs.border_width) | |||||
| 687 | - child_clip.x; | |||||
| 688 | if (new_width >= 0) { | |||||
| 689 | child_clip.width = new_width; | |||||
| 690 | ||||||
| 691 | child_yrr = y_rootrel + child_attrs.y + | |||||
| 692 | curr_attrs->border_width; | |||||
| 693 | child_clip.y = MAX( curr_clipY, child_yrr)((curr_clipY) > (child_yrr) ? curr_clipY : child_yrr); | |||||
| 694 | new_height = MIN( curr_clipBt,((curr_clipBt) < (child_yrr + (int) child_attrs.height + 2 * child_attrs.border_width) ? curr_clipBt : child_yrr + (int ) child_attrs.height + 2 * child_attrs.border_width) | |||||
| 695 | child_yrr + (int) child_attrs.height +((curr_clipBt) < (child_yrr + (int) child_attrs.height + 2 * child_attrs.border_width) ? curr_clipBt : child_yrr + (int ) child_attrs.height + 2 * child_attrs.border_width) | |||||
| 696 | 2 * child_attrs.border_width)((curr_clipBt) < (child_yrr + (int) child_attrs.height + 2 * child_attrs.border_width) ? curr_clipBt : child_yrr + (int ) child_attrs.height + 2 * child_attrs.border_width) | |||||
| 697 | - child_clip.y; | |||||
| 698 | if (new_height >= 0) { | |||||
| 699 | child_clip.height = new_height; | |||||
| 700 | make_src_list( disp, image_wins, bbox, *child, | |||||
| 701 | child_xrr, child_yrr, | |||||
| 702 | &child_attrs, &child_clip); | |||||
| 703 | } | |||||
| 704 | } | |||||
| 705 | child++; | |||||
| 706 | } | |||||
| 707 | XFree( save_child_list); | |||||
| 708 | } | |||||
| 709 | } | |||||
| 710 | ||||||
| 711 | ||||||
| 712 | /** ------------------------------------------------------------------------ | |||||
| 713 | This function creates a list of regions which tile a specified | |||||
| 714 | window. Each region contains all visible portions of the window | |||||
| 715 | which are drawn with the same visual. For example, if the | |||||
| 716 | window consists of subwindows of two different visual types, | |||||
| 717 | there will be two regions in the list. | |||||
| 718 | Returns a pointer to the list. | |||||
| 719 | ------------------------------------------------------------------------ **/ | |||||
| 720 | static list_ptr make_region_list(Display *disp, Window win, XRectangle *bbox, | |||||
| 721 | int *hasNonDefault, int numImageVisuals, | |||||
| 722 | XVisualInfo **pImageVisuals, int *allImage) | |||||
| 723 | { | |||||
| 724 | XWindowAttributes win_attrs; | |||||
| 725 | list image_wins; | |||||
| 726 | list_ptr image_regions; | |||||
| 727 | list_ptr srcs_left; | |||||
| 728 | image_region_type *new_reg; | |||||
| 729 | image_win_type *base_src, *src; | |||||
| 730 | Region bbox_region = XCreateRegion(); | |||||
| 731 | XRectangle clip; | |||||
| 732 | int image_only; | |||||
| 733 | ||||||
| 734 | int count=0 ; | |||||
| 735 | ||||||
| 736 | *hasNonDefault = False0; | |||||
| 737 | XUnionRectWithRegion( bbox, bbox_region, bbox_region); | |||||
| 738 | XGetWindowAttributes( disp, win, &win_attrs); | |||||
| 739 | ||||||
| 740 | zero_list( &image_wins); | |||||
| 741 | clip.x = 0; | |||||
| 742 | clip.y = 0; | |||||
| 743 | clip.width = win_attrs.width; | |||||
| 744 | clip.height = win_attrs.height; | |||||
| 745 | make_src_list( disp, &image_wins, bbox, win, | |||||
| 746 | 0 /* x_rootrel */, 0 /* y_rootrel */, &win_attrs, &clip); | |||||
| 747 | ||||||
| 748 | image_regions = new_list(); | |||||
| 749 | image_only = (*allImage) ? True1:False0; | |||||
| 750 | ||||||
| 751 | for (base_src = (image_win_type *) first_in_list( &image_wins); base_src; | |||||
| 752 | base_src = (image_win_type *) next_in_list( &image_wins)) | |||||
| 753 | { | |||||
| 754 | /* test for image visual */ | |||||
| 755 | if (!image_only || src_in_image(base_src, numImageVisuals, pImageVisuals)) | |||||
| 756 | { | |||||
| 757 | /* find a window whose visual hasn't been put in list yet */ | |||||
| 758 | if (!src_in_region_list( base_src, image_regions)) | |||||
| 759 | { | |||||
| 760 | if (! (new_reg = (image_region_type *) | |||||
| 761 | malloc( sizeof( image_region_type)))) { | |||||
| 762 | return (list_ptr) NULL((void*)0); | |||||
| 763 | } | |||||
| 764 | count++; | |||||
| 765 | ||||||
| 766 | new_reg->visible_region = XCreateRegion(); | |||||
| 767 | new_reg->win = base_src->win; | |||||
| 768 | new_reg->vis = base_src->vis; | |||||
| 769 | new_reg->cmap = base_src->cmap; | |||||
| 770 | new_reg->x_rootrel = base_src->x_rootrel; | |||||
| 771 | new_reg->y_rootrel = base_src->y_rootrel; | |||||
| 772 | new_reg->x_vis = base_src->x_vis; | |||||
| 773 | new_reg->y_vis = base_src->y_vis; | |||||
| 774 | new_reg->width = base_src->width; | |||||
| 775 | new_reg->height = base_src->height; | |||||
| 776 | new_reg->border = base_src->border_width; | |||||
| 777 | ||||||
| 778 | srcs_left = (list_ptr) dup_list_head( &image_wins, START_AT_CURR1); | |||||
| 779 | for (src = (image_win_type *) first_in_list( srcs_left); src; | |||||
| 780 | src = (image_win_type *) next_in_list( srcs_left)) { | |||||
| 781 | if (SAME_REGIONS( base_src, src)((base_src)->vis == (src)->vis && (base_src)-> cmap == (src)->cmap && (base_src)->x_vis <= ( src)->x_vis && (base_src)->y_vis <= (src)-> y_vis && (base_src)->x_vis + (base_src)->width >= (src)->x_vis + (src)->width && (base_src)-> y_vis + (base_src)->height >= (src)->y_vis + (src)-> height)) { | |||||
| 782 | add_rect_to_image_region( new_reg, src->x_vis, src->y_vis, | |||||
| 783 | src->width, src->height); | |||||
| 784 | } | |||||
| 785 | else { | |||||
| 786 | if (!image_only || src_in_image(src, numImageVisuals, pImageVisuals)) | |||||
| 787 | { | |||||
| 788 | subtr_rect_from_image_region( new_reg, src->x_vis, | |||||
| 789 | src->y_vis, src->width, src->height); | |||||
| 790 | } | |||||
| 791 | } | |||||
| 792 | } | |||||
| 793 | XIntersectRegion( bbox_region, new_reg->visible_region, | |||||
| 794 | new_reg->visible_region); | |||||
| 795 | if (! XEmptyRegion( new_reg->visible_region)) { | |||||
| 796 | add_to_list( image_regions, new_reg); | |||||
| 797 | if (new_reg->vis != DefaultVisualOfScreen( win_attrs.screen)((win_attrs.screen)->root_visual) || | |||||
| 798 | new_reg->cmap != DefaultColormapOfScreen(((win_attrs.screen)->cmap) | |||||
| 799 | win_attrs.screen)((win_attrs.screen)->cmap)) { | |||||
| 800 | *hasNonDefault = True1; | |||||
| 801 | } | |||||
| 802 | } | |||||
| 803 | else { | |||||
| 804 | XDestroyRegion( new_reg->visible_region); | |||||
| 805 | free( (void *) new_reg); | |||||
| 806 | } | |||||
| 807 | } | |||||
| 808 | } else *allImage = 0; | |||||
| 809 | } | |||||
| 810 | delete_list( &image_wins, True1); | |||||
| 811 | XDestroyRegion( bbox_region); | |||||
| 812 | return image_regions; | |||||
| 813 | } | |||||
| 814 | /** ------------------------------------------------------------------------ | |||||
| 815 | Destructor called from destroy_region_list(). | |||||
| 816 | ------------------------------------------------------------------------ **/ | |||||
| 817 | static void destroy_image_region(image_region_type *image_region) | |||||
| 818 | { | |||||
| 819 | XDestroyRegion( image_region->visible_region); | |||||
| 820 | free( (void *) image_region); | |||||
| 821 | } | |||||
| 822 | ||||||
| 823 | /** ------------------------------------------------------------------------ | |||||
| 824 | Destroys the region list, destroying all the regions contained in it. | |||||
| 825 | ------------------------------------------------------------------------ **/ | |||||
| 826 | static void destroy_region_list(list_ptr rlist) | |||||
| 827 | { | |||||
| 828 | delete_list_destroying( rlist, (DESTRUCT_FUNC_PTR)destroy_image_region); | |||||
| 829 | } | |||||
| 830 | ||||||
| 831 | ||||||
| 832 | /** ------------------------------------------------------------------------ | |||||
| 833 | Subtracts the specified rectangle from the region in image_region. | |||||
| 834 | First converts the rectangle to a region of its own, since X | |||||
| 835 | only provides a way to subtract one region from another, not a | |||||
| 836 | rectangle from a region. | |||||
| 837 | ------------------------------------------------------------------------ **/ | |||||
| 838 | static void subtr_rect_from_image_region(image_region_type *image_region, | |||||
| 839 | int x, int y, int width, int height) | |||||
| 840 | { | |||||
| 841 | XRectangle rect; | |||||
| 842 | Region rect_region; | |||||
| 843 | ||||||
| 844 | rect_region = XCreateRegion(); | |||||
| 845 | rect.x = x; | |||||
| 846 | rect.y = y; | |||||
| 847 | rect.width = width; | |||||
| 848 | rect.height = height; | |||||
| 849 | XUnionRectWithRegion( &rect, rect_region, rect_region); | |||||
| 850 | XSubtractRegion( image_region->visible_region, rect_region, | |||||
| 851 | image_region->visible_region); | |||||
| 852 | XDestroyRegion( rect_region); | |||||
| 853 | } | |||||
| 854 | ||||||
| 855 | ||||||
| 856 | /** ------------------------------------------------------------------------ | |||||
| 857 | Adds the specified rectangle to the region in image_region. | |||||
| 858 | ------------------------------------------------------------------------ **/ | |||||
| 859 | static void add_rect_to_image_region(image_region_type *image_region, | |||||
| 860 | int x, int y, int width, int height) | |||||
| 861 | { | |||||
| 862 | XRectangle rect; | |||||
| 863 | ||||||
| 864 | rect.x = x; | |||||
| 865 | rect.y = y; | |||||
| 866 | rect.width = width; | |||||
| 867 | rect.height = height; | |||||
| 868 | XUnionRectWithRegion( &rect, image_region->visible_region, | |||||
| 869 | image_region->visible_region); | |||||
| 870 | } | |||||
| 871 | ||||||
| 872 | ||||||
| 873 | /** ------------------------------------------------------------------------ | |||||
| 874 | Returns TRUE if the given src's visual is already represented in | |||||
| 875 | the image_regions list, FALSE otherwise. | |||||
| 876 | ------------------------------------------------------------------------ **/ | |||||
| 877 | static int src_in_region_list(image_win_type *src, list_ptr image_regions) | |||||
| 878 | { | |||||
| 879 | image_region_type *ir; | |||||
| 880 | ||||||
| 881 | for (ir = (image_region_type *) first_in_list( image_regions); ir; | |||||
| 882 | ir = (image_region_type *) next_in_list( image_regions)) { | |||||
| 883 | if (SAME_REGIONS( ir, src)((ir)->vis == (src)->vis && (ir)->cmap == (src )->cmap && (ir)->x_vis <= (src)->x_vis && (ir)->y_vis <= (src)->y_vis && (ir)->x_vis + (ir)->width >= (src)->x_vis + (src)->width && (ir)->y_vis + (ir)->height >= (src)->y_vis + (src )->height)) { | |||||
| 884 | ||||||
| 885 | return 1; | |||||
| 886 | } | |||||
| 887 | } | |||||
| 888 | ||||||
| 889 | return 0; | |||||
| 890 | } | |||||
| 891 | ||||||
| 892 | ||||||
| 893 | /** ------------------------------------------------------------------------ | |||||
| 894 | Makes a new entry in image_wins with the given fields filled in. | |||||
| 895 | ------------------------------------------------------------------------ **/ | |||||
| 896 | static void add_window_to_list(list_ptr image_wins, Window w, | |||||
| 897 | int xrr, int yrr, int x_vis, int y_vis, | |||||
| 898 | int width, int height, int border_width, | |||||
| 899 | Visual *vis, Colormap cmap, Window parent) | |||||
| 900 | { | |||||
| 901 | image_win_type *new_src; | |||||
| 902 | ||||||
| 903 | if ((new_src = (image_win_type *) malloc( sizeof( image_win_type))) == NULL((void*)0)) | |||||
| 904 | ||||||
| 905 | return; | |||||
| 906 | ||||||
| 907 | new_src->win = w; | |||||
| 908 | new_src->x_rootrel = xrr; | |||||
| 909 | new_src->y_rootrel = yrr; | |||||
| 910 | new_src->x_vis = x_vis; | |||||
| 911 | new_src->y_vis = y_vis; | |||||
| 912 | new_src->width = width; | |||||
| 913 | new_src->height = height; | |||||
| 914 | new_src->border_width = border_width; | |||||
| 915 | new_src->vis = vis; | |||||
| 916 | new_src->cmap = cmap; | |||||
| 917 | new_src->parent = parent; | |||||
| 918 | add_to_list( image_wins, new_src); | |||||
| 919 | } | |||||
| 920 | ||||||
| 921 | /** ------------------------------------------------------------------------ | |||||
| 922 | Returns TRUE if the given src's visual is in the image planes, | |||||
| 923 | FALSE otherwise. | |||||
| 924 | ------------------------------------------------------------------------ **/ | |||||
| 925 | static int src_in_image(image_win_type *src, int numImageVisuals, | |||||
| 926 | XVisualInfo **pImageVisuals) | |||||
| 927 | { | |||||
| 928 | int i; | |||||
| 929 | ||||||
| 930 | for (i = 0 ; i < numImageVisuals ; i++) | |||||
| 931 | { | |||||
| 932 | if (pImageVisuals[i]->visual == src->vis) | |||||
| 933 | return 1; | |||||
| 934 | } | |||||
| 935 | return 0; | |||||
| 936 | } | |||||
| 937 | ||||||
| 938 | ||||||
| 939 | /** ------------------------------------------------------------------------ | |||||
| 940 | Returns TRUE if the given src's visual is in the overlay planes | |||||
| 941 | and transparency is possible, FALSE otherwise. | |||||
| 942 | ------------------------------------------------------------------------ **/ | |||||
| 943 | static int src_in_overlay(image_region_type *src, int numOverlayVisuals, | |||||
| 944 | OverlayInfo *pOverlayVisuals, | |||||
| 945 | int *transparentColor, int *transparentType) | |||||
| 946 | { | |||||
| 947 | int i; | |||||
| 948 | ||||||
| 949 | for (i = 0 ; i < numOverlayVisuals ; i++) | |||||
| 950 | { | |||||
| 951 | if (((pOverlayVisuals[i].pOverlayVisualInfo)->visual == src->vis) | |||||
| 952 | && (pOverlayVisuals[i].transparentType != None0L)) | |||||
| 953 | { | |||||
| 954 | *transparentColor = pOverlayVisuals[i].value; | |||||
| 955 | *transparentType = pOverlayVisuals[i].transparentType; | |||||
| 956 | return 1; | |||||
| 957 | } | |||||
| 958 | ||||||
| 959 | else { | |||||
| 960 | } | |||||
| 961 | ||||||
| 962 | } | |||||
| 963 | return 0; | |||||
| 964 | } | |||||
| 965 | ||||||
| 966 | ||||||
| 967 | /********************** from wsutils.c ******************************/ | |||||
| 968 | ||||||
| 969 | /****************************************************************************** | |||||
| 970 | * | |||||
| 971 | * This file contains a set of example utility procedures; procedures that can | |||||
| 972 | * help a "window-smart" Starbase or PHIGS program determine information about | |||||
| 973 | * a device, and create image and overlay plane windows. To use these | |||||
| 974 | * utilities, #include "wsutils.h" and compile this file and link the results | |||||
| 975 | * with your program. | |||||
| 976 | * | |||||
| 977 | ******************************************************************************/ | |||||
| 978 | ||||||
| 979 | ||||||
| 980 | ||||||
| 981 | #define STATIC_GRAY0x01 0x01 | |||||
| 982 | #define GRAY_SCALE0x02 0x02 | |||||
| 983 | #define PSEUDO_COLOR0x04 0x04 | |||||
| 984 | #define TRUE_COLOR0x10 0x10 | |||||
| 985 | #define DIRECT_COLOR0x11 0x11 | |||||
| 986 | ||||||
| 987 | ||||||
| 988 | static int weCreateServerOverlayVisualsProperty = False0; | |||||
| 989 | ||||||
| 990 | ||||||
| 991 | /****************************************************************************** | |||||
| 992 | * | |||||
| 993 | * GetXVisualInfo() | |||||
| 994 | * | |||||
| 995 | * This routine takes an X11 Display, screen number, and returns whether the | |||||
| 996 | * screen supports transparent overlays and three arrays: | |||||
| 997 | * | |||||
| 998 | * 1) All of the XVisualInfo struct's for the screen. | |||||
| 999 | * 2) All of the OverlayInfo struct's for the screen. | |||||
| 1000 | * 3) An array of pointers to the screen's image plane XVisualInfo | |||||
| 1001 | * structs. | |||||
| 1002 | * | |||||
| 1003 | * The code below obtains the array of all the screen's visuals, and obtains | |||||
| 1004 | * the array of all the screen's overlay visual information. It then processes | |||||
| 1005 | * the array of the screen's visuals, determining whether the visual is an | |||||
| 1006 | * overlay or image visual. | |||||
| 1007 | * | |||||
| 1008 | * If the routine sucessfully obtained the visual information, it returns zero. | |||||
| 1009 | * If the routine didn't obtain the visual information, it returns non-zero. | |||||
| 1010 | * | |||||
| 1011 | ******************************************************************************/ | |||||
| 1012 | ||||||
| 1013 | int GetXVisualInfo(/* Which X server (aka "display"). */ | |||||
| 1014 | Display *display, | |||||
| 1015 | /* Which screen of the "display". */ | |||||
| 1016 | int screen, | |||||
| 1017 | /* Non-zero if there's at least one overlay visual and | |||||
| 1018 | * if at least one of those supports a transparent pixel. */ | |||||
| 1019 | int *transparentOverlays, | |||||
| 1020 | /* Number of XVisualInfo struct's pointed to by pVisuals. */ | |||||
| 1021 | int *numVisuals, | |||||
| 1022 | /* All of the device's visuals. */ | |||||
| 1023 | XVisualInfo **pVisuals, | |||||
| 1024 | /* Number of OverlayInfo's pointed to by pOverlayVisuals. | |||||
| 1025 | * If this number is zero, the device does not have | |||||
| 1026 | * overlay planes. */ | |||||
| 1027 | int *numOverlayVisuals, | |||||
| 1028 | /* The device's overlay plane visual information. */ | |||||
| 1029 | OverlayInfo **pOverlayVisuals, | |||||
| 1030 | /* Number of XVisualInfo's pointed to by pImageVisuals. */ | |||||
| 1031 | int *numImageVisuals, | |||||
| 1032 | /* The device's image visuals. */ | |||||
| 1033 | XVisualInfo ***pImageVisuals) | |||||
| 1034 | { | |||||
| 1035 | XVisualInfo getVisInfo; /* Paramters of XGetVisualInfo */ | |||||
| 1036 | int mask; | |||||
| 1037 | XVisualInfo *pVis, **pIVis; /* Faster, local copies */ | |||||
| 1038 | OverlayInfo *pOVis; | |||||
| 1039 | OverlayVisualPropertyRec *pOOldVis; | |||||
| 1040 | int nVisuals, nOVisuals; | |||||
| 1041 | Atom overlayVisualsAtom; /* Parameters for XGetWindowProperty */ | |||||
| 1042 | Atom actualType; | |||||
| 1043 | unsigned long numLongs, bytesAfter; | |||||
| 1044 | int actualFormat; | |||||
| 1045 | int nImageVisualsAlloced; /* Values to process the XVisualInfo */ | |||||
| 1046 | int imageVisual; /* array */ | |||||
| 1047 | ||||||
| 1048 | ||||||
| 1049 | /* First, get the list of visuals for this screen. */ | |||||
| 1050 | getVisInfo.screen = screen; | |||||
| 1051 | mask = VisualScreenMask0x2; | |||||
| 1052 | ||||||
| 1053 | *pVisuals = XGetVisualInfo(display, mask, &getVisInfo, numVisuals); | |||||
| 1054 | if ((nVisuals = *numVisuals) <= 0) | |||||
| 1055 | { | |||||
| 1056 | /* Return that the information wasn't sucessfully obtained: */ | |||||
| 1057 | return(1); | |||||
| 1058 | } | |||||
| 1059 | pVis = *pVisuals; | |||||
| 1060 | ||||||
| 1061 | ||||||
| 1062 | /* Now, get the overlay visual information for this screen. To obtain | |||||
| 1063 | * this information, get the SERVER_OVERLAY_VISUALS property. | |||||
| 1064 | */ | |||||
| 1065 | overlayVisualsAtom = XInternAtom(display, "SERVER_OVERLAY_VISUALS", True1); | |||||
| 1066 | if (overlayVisualsAtom != None0L) | |||||
| 1067 | { | |||||
| 1068 | /* Since the Atom exists, we can request the property's contents. The | |||||
| 1069 | * do-while loop makes sure we get the entire list from the X server. | |||||
| 1070 | */ | |||||
| 1071 | bytesAfter = 0; | |||||
| 1072 | numLongs = sizeof(OverlayVisualPropertyRec) / sizeof(long); | |||||
| 1073 | do | |||||
| 1074 | { | |||||
| 1075 | numLongs += bytesAfter * sizeof(long); | |||||
| 1076 | XGetWindowProperty(display, RootWindow(display, screen)((&((_XPrivDisplay)(display))->screens[screen])->root ), | |||||
| 1077 | overlayVisualsAtom, 0, numLongs, False0, | |||||
| 1078 | overlayVisualsAtom, &actualType, &actualFormat, | |||||
| 1079 | &numLongs, &bytesAfter, (unsigned char**) pOverlayVisuals); | |||||
| 1080 | } while (bytesAfter > 0); | |||||
| 1081 | ||||||
| 1082 | ||||||
| 1083 | /* Calculate the number of overlay visuals in the list. */ | |||||
| 1084 | *numOverlayVisuals = numLongs / (sizeof(OverlayVisualPropertyRec) / sizeof(long)); | |||||
| 1085 | } | |||||
| 1086 | else | |||||
| 1087 | { | |||||
| 1088 | /* This screen doesn't have overlay planes. */ | |||||
| 1089 | *numOverlayVisuals = 0; | |||||
| 1090 | *pOverlayVisuals = NULL((void*)0); | |||||
| 1091 | *transparentOverlays = 0; | |||||
| 1092 | } | |||||
| 1093 | ||||||
| 1094 | ||||||
| 1095 | /* Process the pVisuals array. */ | |||||
| 1096 | *numImageVisuals = 0; | |||||
| 1097 | nImageVisualsAlloced = 1; | |||||
| 1098 | pIVis = *pImageVisuals = (XVisualInfo **) malloc(sizeof(XVisualInfo *)); | |||||
| 1099 | while (--nVisuals >= 0) | |||||
| 1100 | { | |||||
| 1101 | nOVisuals = *numOverlayVisuals; | |||||
| 1102 | pOVis = *pOverlayVisuals; | |||||
| 1103 | imageVisual = True1; | |||||
| 1104 | while (--nOVisuals >= 0) | |||||
| 1105 | { | |||||
| 1106 | pOOldVis = (OverlayVisualPropertyRec *) pOVis; | |||||
| 1107 | if (pVis->visualid == pOOldVis->visualID) | |||||
| 1108 | { | |||||
| 1109 | imageVisual = False0; | |||||
| 1110 | pOVis->pOverlayVisualInfo = pVis; | |||||
| 1111 | if (pOVis->transparentType == TransparentPixel1) | |||||
| 1112 | *transparentOverlays = 1; | |||||
| 1113 | } | |||||
| 1114 | pOVis++; | |||||
| 1115 | } | |||||
| 1116 | if (imageVisual) | |||||
| 1117 | { | |||||
| 1118 | if ((*numImageVisuals += 1) > nImageVisualsAlloced) | |||||
| 1119 | { | |||||
| 1120 | nImageVisualsAlloced++; | |||||
| 1121 | *pImageVisuals = (XVisualInfo **) | |||||
| 1122 | realloc(*pImageVisuals, (nImageVisualsAlloced * sizeof(XVisualInfo *))); | |||||
| 1123 | pIVis = *pImageVisuals + (*numImageVisuals - 1); | |||||
| 1124 | } | |||||
| 1125 | *pIVis++ = pVis; | |||||
| 1126 | } | |||||
| 1127 | pVis++; | |||||
| 1128 | } | |||||
| 1129 | ||||||
| 1130 | ||||||
| 1131 | /* Return that the information was sucessfully obtained: */ | |||||
| 1132 | return(0); | |||||
| 1133 | ||||||
| 1134 | } /* GetXVisualInfo() */ | |||||
| 1135 | ||||||
| 1136 | ||||||
| 1137 | /****************************************************************************** | |||||
| 1138 | * | |||||
| 1139 | * FreeXVisualInfo() | |||||
| 1140 | * | |||||
| 1141 | * This routine frees the data that was allocated by GetXVisualInfo(). | |||||
| 1142 | * | |||||
| 1143 | ******************************************************************************/ | |||||
| 1144 | ||||||
| 1145 | void FreeXVisualInfo(XVisualInfo *pVisuals, OverlayInfo *pOverlayVisuals, | |||||
| 1146 | XVisualInfo **pImageVisuals) | |||||
| 1147 | { | |||||
| 1148 | XFree(pVisuals); | |||||
| 1149 | if (weCreateServerOverlayVisualsProperty) | |||||
| 1150 | free(pOverlayVisuals); | |||||
| 1151 | else | |||||
| 1152 | XFree(pOverlayVisuals); | |||||
| 1153 | free(pImageVisuals); | |||||
| 1154 | ||||||
| 1155 | } /* FreeXVisualInfo() */ |