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/cvs/rxvt-unicode/src/background.C
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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.77 by sf-exg, Tue Oct 12 22:14:04 2010 UTC vs.
Revision 1.80 by sf-exg, Wed Oct 13 23:04:57 2010 UTC

… …
19 * You should have received a copy of the GNU General Public License 19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software 20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *---------------------------------------------------------------------*/ 22 *---------------------------------------------------------------------*/
23 23
24#include <cmath>
24#include "../config.h" /* NECESSARY */ 25#include "../config.h" /* NECESSARY */
25#include "rxvt.h" /* NECESSARY */ 26#include "rxvt.h" /* NECESSARY */
26 27
27#define DO_TIMING_TEST 0 28#define DO_TIMING_TEST 0
28 29
… …
177 return true; 178 return true;
178# endif 179# endif
179# ifdef ENABLE_TRANSPARENCY 180# ifdef ENABLE_TRANSPARENCY
180 if (flags & isTransparent) 181 if (flags & isTransparent)
181 { 182 {
182# ifdef HAVE_AFTERIMAGE // can't blur without libAI anyways 183# ifdef HAVE_AFTERIMAGE
183 if ((flags & blurNeeded) && !(flags & blurServerSide)) 184 if ((flags & blurNeeded) && !(flags & blurServerSide))
184 return true; 185 return true;
185# endif 186# endif
186 if ((flags & tintNeeded) && !(flags & tintServerSide)) 187 if ((flags & tintNeeded) && !(flags & tintServerSide))
187 return true; 188 return true;
… …
744 return false; 745 return false;
745 746
746 if (!pixbuf) 747 if (!pixbuf)
747 return false; 748 return false;
748 749
749 // TODO: add alpha blending 750#if !XFT
750 if (background_flags) 751 if (background_flags)
751 return false; 752 return false;
753#endif
752 754
753 GdkPixbuf *result; 755 GdkPixbuf *result;
754 756
755 int image_width = gdk_pixbuf_get_width (pixbuf); 757 int image_width = gdk_pixbuf_get_width (pixbuf);
756 int image_height = gdk_pixbuf_get_height (pixbuf); 758 int image_height = gdk_pixbuf_get_height (pixbuf);
… …
788 790
789 if (result) 791 if (result)
790 { 792 {
791 XGCValues gcv; 793 XGCValues gcv;
792 GC gc; 794 GC gc;
795 Pixmap root_pmap;
793 796
794 image_width = gdk_pixbuf_get_width (result); 797 image_width = gdk_pixbuf_get_width (result);
795 image_height = gdk_pixbuf_get_height (result); 798 image_height = gdk_pixbuf_get_height (result);
796 799
800 if (background_flags)
801 {
802 root_pmap = pixmap;
803 pixmap = None;
804 }
805 else
806 {
797 if (h_scale == 0 || v_scale == 0) 807 if (h_scale == 0 || v_scale == 0)
798 { 808 {
799 new_pmap_width = min (image_width, target_width); 809 new_pmap_width = min (image_width, target_width);
800 new_pmap_height = min (image_height, target_height); 810 new_pmap_height = min (image_height, target_height);
811 }
801 } 812 }
802 813
803 if (pixmap) 814 if (pixmap)
804 { 815 {
805 if (pmap_width != new_pmap_width 816 if (pmap_width != new_pmap_width
… …
860 dst_x, dst_y, 871 dst_x, dst_y,
861 dst_width, dst_height, 872 dst_width, dst_height,
862 XLIB_RGB_DITHER_NONE, 873 XLIB_RGB_DITHER_NONE,
863 0, 0); 874 0, 0);
864 } 875 }
876
877#if XFT
878 if (background_flags)
879 {
880 Display *dpy = target->dpy;
881 XRenderPictureAttributes pa;
882
883 XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, target->display->screen));
884 Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);
885
886 XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, target->visual);
887 Picture dst = XRenderCreatePicture (dpy, pixmap, dst_format, 0, &pa);
888
889 pa.repeat = True;
890 Pixmap mask_pmap = XCreatePixmap (dpy, target->vt, 1, 1, 8);
891 XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
892 Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
893 XFreePixmap (dpy, mask_pmap);
894
895 if (src && dst && mask)
896 {
897 XRenderColor mask_c;
898
899 mask_c.alpha = 0x8000;
900 mask_c.red = 0;
901 mask_c.green = 0;
902 mask_c.blue = 0;
903 XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
904 XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
905 }
906
907 XRenderFreePicture (dpy, src);
908 XRenderFreePicture (dpy, dst);
909 XRenderFreePicture (dpy, mask);
910
911 XFreePixmap (dpy, root_pmap);
912 }
913#endif
865 914
866 if (result != pixbuf) 915 if (result != pixbuf)
867 g_object_unref (result); 916 g_object_unref (result);
868 917
869 XFreeGC (target->dpy, gc); 918 XFreeGC (target->dpy, gc);
… …
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{
… …
1178 || sx >= root_width || sy >= root_height) 1327 || sx >= root_width || sy >= root_height)
1179 return 0; 1328 return 0;
1180 1329
1181 if (root_pixmap != None) 1330 if (root_pixmap != None)
1182 { 1331 {
1183 /* we want to validate the pixmap and get it's size at the same time : */ 1332 /* we want to validate the pixmap and get its size at the same time : */
1184 int junk; 1333 int junk;
1185 unsigned int ujunk; 1334 unsigned int ujunk;
1186 /* root pixmap may be bad - allow a error */ 1335 /* root pixmap may be bad - allow a error */
1187 target->allowedxerror = -1; 1336 target->allowedxerror = -1;
1188 1337
… …
1276 1425
1277 if (tiled_root_pmap != None) 1426 if (tiled_root_pmap != None)
1278 { 1427 {
1279 if (!need_client_side_rendering ()) 1428 if (!need_client_side_rendering ())
1280 { 1429 {
1430 if ((flags & blurNeeded))
1431 {
1432 if (blur_pixmap (tiled_root_pmap, DefaultVisual (dpy, target->display->screen), window_width, window_height))
1433 result |= transpPmapBlurred;
1434 }
1281 if ((flags & tintNeeded)) 1435 if ((flags & tintNeeded))
1282 { 1436 {
1283 if (tint_pixmap (tiled_root_pmap, DefaultVisual (dpy, target->display->screen), window_width, window_height)) 1437 if (tint_pixmap (tiled_root_pmap, DefaultVisual (dpy, target->display->screen), window_width, window_height))
1284 result |= transpPmapTinted; 1438 result |= transpPmapTinted;
1285 } 1439 }

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