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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.78 by sf-exg, Wed Oct 13 10:27:22 2010 UTC vs.
Revision 1.83 by sf-exg, Thu Oct 14 17:39:42 2010 UTC

… …
3 *----------------------------------------------------------------------* 3 *----------------------------------------------------------------------*
4 * 4 *
5 * All portions of code are copyright by their respective author/s. 5 * All portions of code are copyright by their respective author/s.
6 * Copyright (c) 2005-2008 Marc Lehmann <pcg@goof.com> 6 * Copyright (c) 2005-2008 Marc Lehmann <pcg@goof.com>
7 * Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net> 7 * Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net>
8 * Copyright (c) 2010 Emanuele Giaquinta <e.giaquinta@glauco.it>
8 * 9 *
9 * This program is free software; you can redistribute it and/or modify 10 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by 11 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or 12 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version. 13 * (at your option) any later version.
… …
19 * You should have received a copy of the GNU General Public License 20 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software 21 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *---------------------------------------------------------------------*/ 23 *---------------------------------------------------------------------*/
23 24
25#include <cmath>
24#include "../config.h" /* NECESSARY */ 26#include "../config.h" /* NECESSARY */
25#include "rxvt.h" /* NECESSARY */ 27#include "rxvt.h" /* NECESSARY */
26 28
27#define DO_TIMING_TEST 0 29#define DO_TIMING_TEST 0
28 30
… …
174{ 176{
175# ifdef HAVE_AFTERIMAGE 177# ifdef HAVE_AFTERIMAGE
176 if (original_asim) 178 if (original_asim)
177 return true; 179 return true;
178# endif 180# endif
179# ifdef ENABLE_TRANSPARENCY
180 if (flags & isTransparent)
181 {
182# ifdef HAVE_AFTERIMAGE // can't blur without libAI anyways
183 if ((flags & blurNeeded) && !(flags & blurServerSide))
184 return true;
185# endif
186 if ((flags & tintNeeded) && !(flags & tintServerSide))
187 return true;
188 }
189# endif
190 return false; 181 return false;
191} 182}
192 183
193# ifdef BG_IMAGE_FROM_FILE 184# ifdef BG_IMAGE_FROM_FILE
194static inline bool 185static inline bool
… …
744 return false; 735 return false;
745 736
746 if (!pixbuf) 737 if (!pixbuf)
747 return false; 738 return false;
748 739
749 // TODO: add alpha blending 740#if !XFT
750 if (background_flags) 741 if (background_flags)
751 return false; 742 return false;
743#endif
752 744
753 GdkPixbuf *result; 745 GdkPixbuf *result;
754 746
755 int image_width = gdk_pixbuf_get_width (pixbuf); 747 int image_width = gdk_pixbuf_get_width (pixbuf);
756 int image_height = gdk_pixbuf_get_height (pixbuf); 748 int image_height = gdk_pixbuf_get_height (pixbuf);
… …
788 780
789 if (result) 781 if (result)
790 { 782 {
791 XGCValues gcv; 783 XGCValues gcv;
792 GC gc; 784 GC gc;
785 Pixmap root_pmap;
793 786
794 image_width = gdk_pixbuf_get_width (result); 787 image_width = gdk_pixbuf_get_width (result);
795 image_height = gdk_pixbuf_get_height (result); 788 image_height = gdk_pixbuf_get_height (result);
796 789
790 if (background_flags)
791 {
792 root_pmap = pixmap;
793 pixmap = None;
794 }
795 else
796 {
797 if (h_scale == 0 || v_scale == 0) 797 if (h_scale == 0 || v_scale == 0)
798 { 798 {
799 new_pmap_width = min (image_width, target_width); 799 new_pmap_width = min (image_width, target_width);
800 new_pmap_height = min (image_height, target_height); 800 new_pmap_height = min (image_height, target_height);
801 }
801 } 802 }
802 803
803 if (pixmap) 804 if (pixmap)
804 { 805 {
805 if (pmap_width != new_pmap_width 806 if (pmap_width != new_pmap_width
… …
861 dst_width, dst_height, 862 dst_width, dst_height,
862 XLIB_RGB_DITHER_NONE, 863 XLIB_RGB_DITHER_NONE,
863 0, 0); 864 0, 0);
864 } 865 }
865 866
867#if XFT
868 if (background_flags)
869 {
870 Display *dpy = target->dpy;
871 XRenderPictureAttributes pa;
872
873 XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, target->display->screen));
874 Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);
875
876 XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, target->visual);
877 Picture dst = XRenderCreatePicture (dpy, pixmap, dst_format, 0, &pa);
878
879 pa.repeat = True;
880 Pixmap mask_pmap = XCreatePixmap (dpy, target->vt, 1, 1, 8);
881 XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
882 Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
883 XFreePixmap (dpy, mask_pmap);
884
885 if (src && dst && mask)
886 {
887 XRenderColor mask_c;
888
889 mask_c.alpha = 0x8000;
890 mask_c.red = 0;
891 mask_c.green = 0;
892 mask_c.blue = 0;
893 XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
894 XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
895 }
896
897 XRenderFreePicture (dpy, src);
898 XRenderFreePicture (dpy, dst);
899 XRenderFreePicture (dpy, mask);
900
901 XFreePixmap (dpy, root_pmap);
902 }
903#endif
904
866 if (result != pixbuf) 905 if (result != pixbuf)
867 g_object_unref (result); 906 g_object_unref (result);
868 907
869 XFreeGC (target->dpy, gc); 908 XFreeGC (target->dpy, gc);
870 909
… …
892 } 931 }
893 932
894# ifdef HAVE_AFTERIMAGE 933# ifdef HAVE_AFTERIMAGE
895 if (!target->asimman) 934 if (!target->asimman)
896 target->asimman = create_generic_imageman (target->rs[Rs_path]); 935 target->asimman = create_generic_imageman (target->rs[Rs_path]);
897 original_asim = get_asimage (target->asimman, file, 0xFFFFFFFF, 100); 936 ASImage *image = get_asimage (target->asimman, file, 0xFFFFFFFF, 100);
937 if (image)
938 {
898 if (original_asim) 939 if (original_asim)
940 safe_asimage_destroy (original_asim);
941 original_asim = image;
899 have_image = true; 942 have_image = true;
900 return have_image; 943 return true;
944 }
901# endif 945# endif
902 946
903# ifdef HAVE_PIXBUF 947# ifdef HAVE_PIXBUF
904 pixbuf = gdk_pixbuf_new_from_file (file, NULL); 948 GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL);
949 if (image)
950 {
905 if (pixbuf) 951 if (pixbuf)
952 g_object_unref (pixbuf);
953 pixbuf = image;
906 have_image = true; 954 have_image = true;
907 return have_image; 955 return true;
956 }
908# endif 957# endif
909 } 958 }
910 959
911 return false; 960 return false;
912} 961}
… …
937 if (!(geom_flags & WidthValue)) 986 if (!(geom_flags & WidthValue))
938 hr = 1; 987 hr = 1;
939 if (!(geom_flags & HeightValue)) 988 if (!(geom_flags & HeightValue))
940 vr = hr; 989 vr = hr;
941 990
991 min_it (hr, 128);
992 min_it (vr, 128);
993
942 if (h_blurRadius != hr) 994 if (h_blurRadius != hr)
943 { 995 {
944 ++changed; 996 ++changed;
945 h_blurRadius = hr; 997 h_blurRadius = hr;
946 } 998 }
… …
953 1005
954 if (v_blurRadius == 0 && h_blurRadius == 0) 1006 if (v_blurRadius == 0 && h_blurRadius == 0)
955 flags &= ~blurNeeded; 1007 flags &= ~blurNeeded;
956 else 1008 else
957 flags |= blurNeeded; 1009 flags |= blurNeeded;
1010
1011#if XFT
1012 XFilters *filters = XRenderQueryFilters (target->dpy, target->display->root);
1013 if (filters)
1014 {
1015 for (int i = 0; i < filters->nfilter; i++)
1016 if (!strcmp (filters->filter[i], FilterConvolution))
1017 flags |= bgPixmap_t::blurServerSide;
1018
1019 XFree (filters);
1020 }
1021#endif
958 1022
959 return (changed > 0); 1023 return (changed > 0);
960} 1024}
961 1025
962static inline unsigned long 1026static inline unsigned long
… …
1047 flags = (flags & (~tintFlags | tintSet)) | new_flags; 1111 flags = (flags & (~tintFlags | tintSet)) | new_flags;
1048 return true; 1112 return true;
1049 } 1113 }
1050 1114
1051 return false; 1115 return false;
1116}
1117
1118static void
1119get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
1120{
1121 double sigma = radius / 2.0;
1122 double scale = sqrt (2.0 * M_PI) * sigma;
1123 double sum = 0.0;
1124
1125 for (int i = 0; i < width; i++)
1126 {
1127 double x = i - width / 2;
1128 kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
1129 sum += kernel[i];
1130 }
1131
1132 params[0] = XDoubleToFixed (width);
1133 params[1] = XDoubleToFixed (1);
1134
1135 for (int i = 0; i < width; i++)
1136 params[i+2] = XDoubleToFixed (kernel[i] / sum);
1137}
1138
1139bool
1140bgPixmap_t::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1141{
1142 bool ret = false;
1143#if XFT
1144 int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1145 double *kernel = (double *)malloc (size * sizeof (double));
1146 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1147
1148 Display *dpy = target->dpy;
1149 XRenderPictureAttributes pa;
1150 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, target->visual);
1151
1152 Picture src = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1153 Picture dst = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1154
1155 if (kernel && params && src && dst)
1156 {
1157 if (h_blurRadius)
1158 {
1159 size = h_blurRadius * 2 + 1;
1160 get_gaussian_kernel (h_blurRadius, size, kernel, params);
1161
1162 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1163 XRenderComposite (dpy,
1164 PictOpSrc,
1165 src,
1166 None,
1167 dst,
1168 0, 0,
1169 0, 0,
1170 0, 0,
1171 width, height);
1172 }
1173
1174 if (v_blurRadius)
1175 {
1176 size = v_blurRadius * 2 + 1;
1177 get_gaussian_kernel (v_blurRadius, size, kernel, params);
1178 swap (params[0], params[1]);
1179
1180 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
1181 XRenderComposite (dpy,
1182 PictOpSrc,
1183 src,
1184 None,
1185 dst,
1186 0, 0,
1187 0, 0,
1188 0, 0,
1189 width, height);
1190 }
1191
1192 ret = true;
1193 }
1194
1195 free (kernel);
1196 free (params);
1197 XRenderFreePicture (dpy, src);
1198 XRenderFreePicture (dpy, dst);
1199#endif
1200 return ret;
1052} 1201}
1053 1202
1054bool 1203bool
1055bgPixmap_t::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height) 1204bgPixmap_t::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1056{ 1205{
… …
1167 unsigned int root_pmap_width, root_pmap_height; 1316 unsigned int root_pmap_width, root_pmap_height;
1168 int window_width = target->szHint.width; 1317 int window_width = target->szHint.width;
1169 int window_height = target->szHint.height; 1318 int window_height = target->szHint.height;
1170 int sx, sy; 1319 int sx, sy;
1171 XGCValues gcv; 1320 XGCValues gcv;
1321 GC gc;
1172 1322
1173 TIMING_TEST_START (tp); 1323 TIMING_TEST_START (tp);
1174 target->get_window_origin (sx, sy); 1324 target->get_window_origin (sx, sy);
1175 1325
1176 /* check if we are outside of the visible part of the virtual screen : */ 1326 /* check if we are outside of the visible part of the virtual screen : */
… …
1190 root_pixmap = None; 1340 root_pixmap = None;
1191 1341
1192 target->allowedxerror = 0; 1342 target->allowedxerror = 0;
1193 } 1343 }
1194 1344
1345 if (root_pixmap == None)
1346 return 0;
1347
1195 Pixmap tiled_root_pmap = XCreatePixmap (dpy, root, window_width, window_height, root_depth); 1348 Pixmap tiled_root_pmap = XCreatePixmap (dpy, root, window_width, window_height, root_depth);
1196 GC gc = NULL;
1197 1349
1198 if (tiled_root_pmap == None) /* something really bad happened - abort */ 1350 if (tiled_root_pmap == None) /* something really bad happened - abort */
1199 return 0; 1351 return 0;
1200 1352
1201 if (root_pixmap == None)
1202 {
1203 /* use tricks to obtain the root background image :*/
1204 /* we want to create Overrideredirect window overlapping out window
1205 with background type of Parent Relative and then grab it */
1206 XSetWindowAttributes attr;
1207 Window src;
1208 bool success = false;
1209
1210 attr.background_pixmap = ParentRelative;
1211 attr.backing_store = Always;
1212 attr.event_mask = ExposureMask;
1213 attr.override_redirect = True;
1214 src = XCreateWindow (dpy, root, sx, sy, window_width, window_height, 0,
1215 CopyFromParent, CopyFromParent, CopyFromParent,
1216 CWBackPixmap|CWBackingStore|CWOverrideRedirect|CWEventMask,
1217 &attr);
1218
1219 if (src != None)
1220 {
1221 XEvent event;
1222 int ev_count = 0;
1223 XGrabServer (dpy);
1224 XMapRaised (dpy, src);
1225 XSync (dpy, False);
1226
1227 /* XSync should get window where it's properly exposed,
1228 * but to be on the safe side - let's check for the actual event to arrive : */
1229 while (XCheckWindowEvent (dpy, src, ExposureMask, &event))
1230 ++ev_count;
1231
1232 if (ev_count > 0);
1233 {
1234 /* hooray! - we can grab the image! */
1235 gc = XCreateGC (dpy, root, 0, NULL);
1236 if (gc)
1237 {
1238 XCopyArea (dpy, src, tiled_root_pmap, gc, 0, 0, window_width, window_height, 0, 0);
1239 success = true;
1240 }
1241 }
1242
1243 XDestroyWindow (dpy, src);
1244 XUngrabServer (dpy);
1245 //fprintf (stderr, "%s:%d: ev_count = %d\n", __FUNCTION__, __LINE__, ev_count);
1246 }
1247
1248 if (!success)
1249 {
1250 XFreePixmap (dpy, tiled_root_pmap);
1251 tiled_root_pmap = None;
1252 }
1253 else
1254 result |= transpPmapTiled;
1255 }
1256 else
1257 {
1258 /* straightforward pixmap copy */ 1353 /* straightforward pixmap copy */
1259 gcv.tile = root_pixmap; 1354 gcv.tile = root_pixmap;
1260 gcv.fill_style = FillTiled; 1355 gcv.fill_style = FillTiled;
1261 1356
1262 while (sx < 0) sx += (int)root_width; 1357 while (sx < 0) sx += (int)root_width;
1263 while (sy < 0) sy += (int)root_height; 1358 while (sy < 0) sy += (int)root_height;
1264 1359
1265 gcv.ts_x_origin = -sx; 1360 gcv.ts_x_origin = -sx;
1266 gcv.ts_y_origin = -sy; 1361 gcv.ts_y_origin = -sy;
1267 gc = XCreateGC (dpy, root, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv); 1362 gc = XCreateGC (dpy, root, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1268 1363
1269 if (gc) 1364 if (gc)
1270 { 1365 {
1271 XFillRectangle (dpy, tiled_root_pmap, gc, 0, 0, window_width, window_height); 1366 XFillRectangle (dpy, tiled_root_pmap, gc, 0, 0, window_width, window_height);
1272 result |= transpPmapTiled; 1367 result |= transpPmapTiled;
1273 } 1368 XFreeGC (dpy, gc);
1274 } 1369 }
1275 TIMING_TEST_PRINT_RESULT (tp); 1370 TIMING_TEST_PRINT_RESULT (tp);
1276 1371
1277 if (tiled_root_pmap != None) 1372 if (tiled_root_pmap != None)
1278 { 1373 {
1279 if (!need_client_side_rendering ()) 1374 if (!need_client_side_rendering ())
1280 { 1375 {
1376 if (flags & (blurNeeded | blurServerSide))
1377 {
1378 if (blur_pixmap (tiled_root_pmap, DefaultVisual (dpy, target->display->screen), window_width, window_height))
1379 result |= transpPmapBlurred;
1380 }
1281 if ((flags & tintNeeded)) 1381 if (flags & (tintNeeded | tintServerSide))
1282 { 1382 {
1283 if (tint_pixmap (tiled_root_pmap, DefaultVisual (dpy, target->display->screen), window_width, window_height)) 1383 if (tint_pixmap (tiled_root_pmap, DefaultVisual (dpy, target->display->screen), window_width, window_height))
1284 result |= transpPmapTinted; 1384 result |= transpPmapTinted;
1285 } 1385 }
1286 } /* server side rendering completed */ 1386 } /* server side rendering completed */
… …
1291 pixmap = tiled_root_pmap; 1391 pixmap = tiled_root_pmap;
1292 pmap_width = window_width; 1392 pmap_width = window_width;
1293 pmap_height = window_height; 1393 pmap_height = window_height;
1294 pmap_depth = root_depth; 1394 pmap_depth = root_depth;
1295 } 1395 }
1296
1297 if (gc)
1298 XFreeGC (dpy, gc);
1299 1396
1300 TIMING_TEST_PRINT_RESULT (tp); 1397 TIMING_TEST_PRINT_RESULT (tp);
1301 1398
1302 return result; 1399 return result;
1303} 1400}

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