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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.173 by sf-exg, Sun Nov 20 11:09:21 2011 UTC vs.
Revision 1.188 by sf-exg, Thu Dec 29 12:25:50 2011 UTC

… …
33#ifndef FilterConvolution 33#ifndef FilterConvolution
34#define FilterConvolution "convolution" 34#define FilterConvolution "convolution"
35#endif 35#endif
36 36
37#ifdef HAVE_BG_PIXMAP 37#ifdef HAVE_BG_PIXMAP
38# if XRENDER
39static Picture
40create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha)
41{
42 Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);
43
44 XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);
45 XRenderPictureAttributes pa;
46 pa.repeat = True;
47 pa.component_alpha = component_alpha;
48 Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa);
49
50 XFreePixmap (dpy, pixmap);
51
52 return mask;
53}
54# endif
55
38void 56void
39rxvt_term::bg_destroy () 57rxvt_term::bg_destroy ()
40{ 58{
41#ifdef HAVE_AFTERIMAGE 59#ifdef HAVE_AFTERIMAGE
42 if (original_asim) 60 if (original_asim)
… …
181{ 199{
182 bool changed = false; 200 bool changed = false;
183 int geom_flags = 0; 201 int geom_flags = 0;
184 int x = 0, y = 0; 202 int x = 0, y = 0;
185 unsigned int w = 0, h = 0; 203 unsigned int w = 0, h = 0;
186 unsigned long new_flags = bg_flags & ~BG_GEOMETRY_FLAGS; 204 unsigned long new_flags = 0;
187 205
188 if (geom == NULL) 206 if (geom == NULL)
189 return false; 207 return false;
190 208
191 if (geom[0]) 209 if (geom[0])
… …
201 x = y = 0; 219 x = y = 0;
202 geom_flags = WidthValue|HeightValue|XValue|YValue; 220 geom_flags = WidthValue|HeightValue|XValue|YValue;
203 } 221 }
204 else if (!strcasecmp (arr[i], "style=aspect-stretched")) 222 else if (!strcasecmp (arr[i], "style=aspect-stretched"))
205 { 223 {
206 new_flags = BG_PROP_SCALE; 224 new_flags = BG_KEEP_ASPECT;
207 w = h = windowScale; 225 w = h = windowScale;
208 x = y = centerAlign; 226 x = y = centerAlign;
209 geom_flags = WidthValue|HeightValue|XValue|YValue; 227 geom_flags = WidthValue|HeightValue|XValue|YValue;
210 } 228 }
211 else if (!strcasecmp (arr[i], "style=stretched")) 229 else if (!strcasecmp (arr[i], "style=stretched"))
… …
227 w = h = noScale; 245 w = h = noScale;
228 geom_flags = WidthValue|HeightValue; 246 geom_flags = WidthValue|HeightValue;
229 } 247 }
230 else if (!strcasecmp (arr[i], "op=tile")) 248 else if (!strcasecmp (arr[i], "op=tile"))
231 new_flags |= BG_TILE; 249 new_flags |= BG_TILE;
232 else if (!strcasecmp (arr[i], "op=pscale")) 250 else if (!strcasecmp (arr[i], "op=keep-aspect"))
233 new_flags |= BG_PROP_SCALE; 251 new_flags |= BG_KEEP_ASPECT;
234 else if (!strcasecmp (arr[i], "op=root")) 252 else if (!strcasecmp (arr[i], "op=root-align"))
235 new_flags |= BG_ROOT_ALIGN; 253 new_flags |= BG_ROOT_ALIGN;
236 254
237 // deprecated 255 // deprecated
238 else if (!strcasecmp (arr[i], "tile")) 256 else if (!strcasecmp (arr[i], "tile"))
239 { 257 {
… …
241 w = h = noScale; 259 w = h = noScale;
242 geom_flags |= WidthValue|HeightValue; 260 geom_flags |= WidthValue|HeightValue;
243 } 261 }
244 else if (!strcasecmp (arr[i], "propscale")) 262 else if (!strcasecmp (arr[i], "propscale"))
245 { 263 {
246 new_flags |= BG_PROP_SCALE; 264 new_flags |= BG_KEEP_ASPECT;
265 w = h = windowScale;
266 geom_flags |= WidthValue|HeightValue;
247 } 267 }
248 else if (!strcasecmp (arr[i], "hscale")) 268 else if (!strcasecmp (arr[i], "hscale"))
249 { 269 {
250 new_flags |= BG_TILE; 270 new_flags |= BG_TILE;
251 w = windowScale; 271 w = windowScale;
… …
281 geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h); 301 geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h);
282 } /* done parsing ops */ 302 } /* done parsing ops */
283 303
284 rxvt_free_strsplit (arr); 304 rxvt_free_strsplit (arr);
285 } 305 }
306
307 new_flags |= bg_flags & ~BG_GEOMETRY_FLAGS;
286 308
287 if (!update) 309 if (!update)
288 { 310 {
289 if (!(geom_flags & XValue)) 311 if (!(geom_flags & XValue))
290 x = y = defaultAlign; 312 x = y = defaultAlign;
… …
322 int target_height = szHint.height; 344 int target_height = szHint.height;
323 345
324 w = h_scale * target_width / 100; 346 w = h_scale * target_width / 100;
325 h = v_scale * target_height / 100; 347 h = v_scale * target_height / 100;
326 348
327 if (bg_flags & BG_PROP_SCALE) 349 if (bg_flags & BG_KEEP_ASPECT)
328 { 350 {
329 float scale = (float)w / image_width; 351 float scale = (float)w / image_width;
330 min_it (scale, (float)h / image_height); 352 min_it (scale, (float)h / image_height);
331 w = image_width * scale + 0.5; 353 w = image_width * scale + 0.5;
332 h = image_height * scale + 0.5; 354 h = image_height * scale + 0.5;
… …
370 if (tr_flags & BG_NEEDS_TINT) 392 if (tr_flags & BG_NEEDS_TINT)
371 { 393 {
372 ShadingInfo as_shade; 394 ShadingInfo as_shade;
373 as_shade.shading = shade; 395 as_shade.shading = shade;
374 396
375 rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC); 397 rgba c;
376 if (bg_flags & BG_TINT_SET)
377 tint.get (c); 398 tint.get (c);
378 as_shade.tintColor.red = c.r; 399 as_shade.tintColor.red = c.r;
379 as_shade.tintColor.green = c.g; 400 as_shade.tintColor.green = c.g;
380 as_shade.tintColor.blue = c.b; 401 as_shade.tintColor.blue = c.b;
381 402
382 background_tint = shading2tint32 (&as_shade); 403 background_tint = shading2tint32 (&as_shade);
… …
806 Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa); 827 Picture src = XRenderCreatePicture (dpy, root_pmap, src_format, 0, &pa);
807 828
808 XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual); 829 XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual);
809 Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa); 830 Picture dst = XRenderCreatePicture (dpy, bg_pixmap, dst_format, 0, &pa);
810 831
811 pa.repeat = True; 832 Picture mask = create_xrender_mask (dpy, vt, False, False);
812 Pixmap mask_pmap = XCreatePixmap (dpy, vt, 1, 1, 8);
813 XRenderPictFormat *mask_format = XRenderFindStandardFormat (dpy, PictStandardA8);
814 Picture mask = XRenderCreatePicture (dpy, mask_pmap, mask_format, CPRepeat, &pa);
815 XFreePixmap (dpy, mask_pmap);
816 833
817 XRenderColor mask_c; 834 XRenderColor mask_c;
818 835
819 mask_c.alpha = 0x8000; 836 mask_c.alpha = 0x8000;
820 mask_c.red = 0; 837 mask_c.red = 0;
… …
951} 968}
952 969
953void 970void
954rxvt_term::set_tint_shade_flags () 971rxvt_term::set_tint_shade_flags ()
955{ 972{
956 rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC); 973 rgba c;
957 bool has_shade = shade != 100; 974 bool has_shade = shade != 100;
958 975
959 bg_flags &= ~BG_TINT_FLAGS; 976 bg_flags &= ~BG_TINT_FLAGS;
960 977
961 if (bg_flags & BG_TINT_SET)
962 {
963 tint.get (c); 978 tint.get (c);
979
964 if (!has_shade 980 if (!has_shade
965 && (c.r <= 0x00ff || c.r >= 0xff00) 981 && (c.r <= 0x00ff || c.r >= 0xff00)
966 && (c.g <= 0x00ff || c.g >= 0xff00) 982 && (c.g <= 0x00ff || c.g >= 0xff00)
967 && (c.b <= 0x00ff || c.b >= 0xff00)) 983 && (c.b <= 0x00ff || c.b >= 0xff00))
968 bg_flags |= BG_TINT_BITAND; 984 bg_flags |= BG_TINT_BITAND;
969 }
970 985
971 if (has_shade || (bg_flags & BG_TINT_SET)) 986 if (has_shade
987 || c.r < 0xff00
988 || c.g < 0xff00
989 || c.b < 0xff00)
972 bg_flags |= BG_NEEDS_TINT; 990 bg_flags |= BG_NEEDS_TINT;
973} 991}
974 992
975bool 993bool
976rxvt_term::bg_set_tint (rxvt_color &new_tint) 994rxvt_term::bg_set_tint (rxvt_color &new_tint)
977{ 995{
978 if (!(bg_flags & BG_TINT_SET) || tint != new_tint) 996 if (tint != new_tint)
979 { 997 {
980 tint = new_tint; 998 tint = new_tint;
981 bg_flags |= BG_TINT_SET;
982 set_tint_shade_flags (); 999 set_tint_shade_flags ();
983 return true; 1000 return true;
984 } 1001 }
985 1002
986 return false; 1003 return false;
987} 1004}
988 1005
989bool 1006bool
990rxvt_term::bg_set_shade (const char *shade_str) 1007rxvt_term::bg_set_shade (const char *shade_str)
991{ 1008{
992 int new_shade = (shade_str) ? atoi (shade_str) : 100; 1009 int new_shade = atoi (shade_str);
993 1010
994 clamp_it (new_shade, -100, 200); 1011 clamp_it (new_shade, -100, 200);
995 if (new_shade < 0) 1012 if (new_shade < 0)
996 new_shade = 200 - (100 + new_shade); 1013 new_shade = 200 - (100 + new_shade);
997 1014
… …
1031bool 1048bool
1032rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height) 1049rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
1033{ 1050{
1034 bool ret = false; 1051 bool ret = false;
1035#if XRENDER 1052#if XRENDER
1053 if (!(bg_flags & BG_HAS_RENDER_CONV))
1054 return false;
1055
1036 int size = max (h_blurRadius, v_blurRadius) * 2 + 1; 1056 int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
1037 double *kernel = (double *)malloc (size * sizeof (double)); 1057 double *kernel = (double *)malloc (size * sizeof (double));
1038 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); 1058 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
1039 1059
1040 XRenderPictureAttributes pa; 1060 XRenderPictureAttributes pa;
… …
1113 XFillRectangle (dpy, pixmap, gc, 0, 0, width, height); 1133 XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
1114 ret = true; 1134 ret = true;
1115 XFreeGC (dpy, gc); 1135 XFreeGC (dpy, gc);
1116 } 1136 }
1117 } 1137 }
1118 else
1119 {
1120# if XRENDER 1138# if XRENDER
1121 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC); 1139 else if (bg_flags & BG_HAS_RENDER)
1140 {
1141 rgba c;
1122 1142
1123 if (bg_flags & BG_TINT_SET)
1124 tint.get (c); 1143 tint.get (c);
1125 1144
1126 if (shade <= 100) 1145 if (shade <= 100)
1127 { 1146 {
1128 c.r = c.r * shade / 100; 1147 c.r = c.r * shade / 100;
1129 c.g = c.g * shade / 100; 1148 c.g = c.g * shade / 100;
… …
1134 c.r = c.r * (200 - shade) / 100; 1153 c.r = c.r * (200 - shade) / 100;
1135 c.g = c.g * (200 - shade) / 100; 1154 c.g = c.g * (200 - shade) / 100;
1136 c.b = c.b * (200 - shade) / 100; 1155 c.b = c.b * (200 - shade) / 100;
1137 } 1156 }
1138 1157
1139 XRenderPictFormat *solid_format = XRenderFindStandardFormat (dpy, PictStandardARGB32);
1140 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); 1158 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1141 XRenderPictureAttributes pa; 1159 XRenderPictureAttributes pa;
1142 1160
1143 Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa); 1161 Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, &pa);
1144 1162
1145 pa.repeat = True; 1163 Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
1146 1164
1147 Pixmap overlay_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32); 1165 Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
1148 Picture overlay_pic = XRenderCreatePicture (dpy, overlay_pmap, solid_format, CPRepeat, &pa);
1149 XFreePixmap (dpy, overlay_pmap);
1150
1151 pa.component_alpha = True;
1152 Pixmap mask_pmap = XCreatePixmap (dpy, pixmap, 1, 1, 32);
1153 Picture mask_pic = XRenderCreatePicture (dpy, mask_pmap, solid_format, CPRepeat | CPComponentAlpha, &pa);
1154 XFreePixmap (dpy, mask_pmap);
1155 1166
1156 XRenderColor mask_c; 1167 XRenderColor mask_c;
1157 1168
1158 mask_c.alpha = 0xffff; 1169 mask_c.alpha = 0xffff;
1159 mask_c.red = 1170 mask_c.red =
… …
1180 ret = true; 1191 ret = true;
1181 1192
1182 XRenderFreePicture (dpy, mask_pic); 1193 XRenderFreePicture (dpy, mask_pic);
1183 XRenderFreePicture (dpy, overlay_pic); 1194 XRenderFreePicture (dpy, overlay_pic);
1184 XRenderFreePicture (dpy, back_pic); 1195 XRenderFreePicture (dpy, back_pic);
1196 }
1185# endif 1197# endif
1186 }
1187 1198
1188 return ret; 1199 return ret;
1189} 1200}
1190 1201
1191/* 1202/*
… …
1275 bg_pmap_width = window_width; 1286 bg_pmap_width = window_width;
1276 bg_pmap_height = window_height; 1287 bg_pmap_height = window_height;
1277 } 1288 }
1278 1289
1279 /* straightforward pixmap copy */ 1290 /* straightforward pixmap copy */
1280 while (sx < 0) sx += root_width; 1291 while (sx < 0) sx += root_pmap_width;
1281 while (sy < 0) sy += root_height; 1292 while (sy < 0) sy += root_pmap_height;
1282 1293
1283 gcv.tile = recoded_root_pmap; 1294 gcv.tile = recoded_root_pmap;
1284 gcv.fill_style = FillTiled; 1295 gcv.fill_style = FillTiled;
1285 gcv.ts_x_origin = -sx; 1296 gcv.ts_x_origin = -sx;
1286 gcv.ts_y_origin = -sy; 1297 gcv.ts_y_origin = -sy;
… …
1292 result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS); 1303 result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1293 XFreeGC (dpy, gc); 1304 XFreeGC (dpy, gc);
1294 1305
1295 if (!(bg_flags & BG_CLIENT_RENDER)) 1306 if (!(bg_flags & BG_CLIENT_RENDER))
1296 { 1307 {
1297 if ((bg_flags & BG_NEEDS_BLUR) 1308 if (bg_flags & BG_NEEDS_BLUR)
1298 && (bg_flags & BG_HAS_RENDER_CONV))
1299 { 1309 {
1300 if (blur_pixmap (bg_pixmap, visual, window_width, window_height)) 1310 if (blur_pixmap (bg_pixmap, visual, window_width, window_height))
1301 result &= ~BG_NEEDS_BLUR; 1311 result &= ~BG_NEEDS_BLUR;
1302 } 1312 }
1303 if ((bg_flags & BG_NEEDS_TINT) 1313 if (bg_flags & BG_NEEDS_TINT)
1304 && (bg_flags & (BG_TINT_BITAND | BG_HAS_RENDER)))
1305 { 1314 {
1306 if (tint_pixmap (bg_pixmap, visual, window_width, window_height)) 1315 if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1307 result &= ~BG_NEEDS_TINT; 1316 result &= ~BG_NEEDS_TINT;
1308 } 1317 }
1309 } /* server side rendering completed */ 1318 } /* server side rendering completed */
… …
1323 new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]); 1332 new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1324 1333
1325 root_pixmap = new_root_pixmap; 1334 root_pixmap = new_root_pixmap;
1326} 1335}
1327# endif /* ENABLE_TRANSPARENCY */ 1336# endif /* ENABLE_TRANSPARENCY */
1328
1329#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1330static void shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c);
1331# endif
1332 1337
1333bool 1338bool
1334rxvt_term::bg_render () 1339rxvt_term::bg_render ()
1335{ 1340{
1336 unsigned long tr_flags = 0; 1341 unsigned long tr_flags = 0;
… …
1367 if (result) 1372 if (result)
1368 { 1373 {
1369 /* our own client-side tinting */ 1374 /* our own client-side tinting */
1370 //if (tr_flags & BG_NEEDS_TINT) 1375 //if (tr_flags & BG_NEEDS_TINT)
1371 if (1) 1376 if (1)
1372 {
1373 rgba c (rgba::MAX_CC,rgba::MAX_CC,rgba::MAX_CC);
1374 if (bg_flags & BG_TINT_SET)
1375 tint.get (c);
1376 shade_ximage (DefaultVisual (dpy, display->screen), result, shade, c); 1377 tint_ximage (DefaultVisual (dpy, display->screen), result);
1377 }
1378 1378
1379 GC gc = XCreateGC (dpy, vt, 0UL, NULL); 1379 GC gc = XCreateGC (dpy, vt, 0UL, NULL);
1380 1380
1381 if (gc) 1381 if (gc)
1382 { 1382 {
… …
1408 1408
1409void 1409void
1410rxvt_term::bg_init () 1410rxvt_term::bg_init ()
1411{ 1411{
1412#ifdef ENABLE_TRANSPARENCY 1412#ifdef ENABLE_TRANSPARENCY
1413 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1414 tint.set (this, c);
1413 shade = 100; 1415 shade = 100;
1414#endif 1416#endif
1415 1417
1416 bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV); 1418 bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);
1417#if XRENDER 1419#if XRENDER
… …
1433#endif /* HAVE_BG_PIXMAP */ 1435#endif /* HAVE_BG_PIXMAP */
1434 1436
1435#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE) 1437#if defined(ENABLE_TRANSPARENCY) && !defined(HAVE_AFTERIMAGE)
1436/* based on code from aterm-0.4.2 */ 1438/* based on code from aterm-0.4.2 */
1437 1439
1438static void 1440static inline void
1439shade_ximage (Visual *visual, XImage *ximage, int shade, const rgba &c) 1441fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1442{
1443 for (int i = 0; i <= mask >> sh; i++)
1444 {
1445 uint32_t tmp;
1446 tmp = i * high;
1447 tmp += (mask >> sh) * low;
1448 lookup[i] = (tmp / 0xffff) << sh;
1449 }
1450}
1451
1452void
1453rxvt_term::tint_ximage (Visual *visual, XImage *ximage)
1440{ 1454{
1441 int sh_r, sh_g, sh_b; 1455 int sh_r, sh_g, sh_b;
1442 uint32_t mask_r, mask_g, mask_b; 1456 uint32_t mask_r, mask_g, mask_b;
1443 uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b; 1457 uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1444 rgba low; 1458 unsigned short low;
1445 rgba high;
1446 int i;
1447 int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; 1459 int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1448 1460
1449 if (visual->c_class != TrueColor || ximage->format != ZPixmap) return; 1461 if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1450 1462
1451 /* for convenience */ 1463 /* for convenience */
… …
1510 break; 1522 break;
1511 default: 1523 default:
1512 return; /* we do not support this color depth */ 1524 return; /* we do not support this color depth */
1513 } 1525 }
1514 1526
1527 rgba c;
1528
1529 tint.get (c);
1530
1515 /* prepare limits for color transformation (each channel is handled separately) */ 1531 /* prepare limits for color transformation (each channel is handled separately) */
1516 if (shade > 100) 1532 if (shade > 100)
1517 { 1533 {
1518 shade = 200 - shade;
1519
1520 high.r = c.r * shade / 100;
1521 high.g = c.g * shade / 100;
1522 high.b = c.b * shade / 100;
1523
1524 low.r = 65535 * (100 - shade) / 100; 1534 c.r = c.r * (200 - shade) / 100;
1525 low.g = 65535 * (100 - shade) / 100; 1535 c.g = c.g * (200 - shade) / 100;
1526 low.b = 65535 * (100 - shade) / 100; 1536 c.b = c.b * (200 - shade) / 100;
1537
1538 low = 0xffff * (shade - 100) / 100;
1527 } 1539 }
1528 else 1540 else
1529 { 1541 {
1530 high.r = c.r * shade / 100; 1542 c.r = c.r * shade / 100;
1531 high.g = c.g * shade / 100; 1543 c.g = c.g * shade / 100;
1532 high.b = c.b * shade / 100; 1544 c.b = c.b * shade / 100;
1533 1545
1534 low.r = low.g = low.b = 0; 1546 low = 0;
1535 } 1547 }
1536 1548
1537 /* fill our lookup tables */ 1549 /* fill our lookup tables */
1538 for (i = 0; i <= mask_r>>sh_r; i++) 1550 fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1539 { 1551 fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1540 uint32_t tmp; 1552 fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1541 tmp = i * high.r;
1542 tmp += (mask_r>>sh_r) * low.r;
1543 lookup_r[i] = (tmp/65535)<<sh_r;
1544 }
1545 for (i = 0; i <= mask_g>>sh_g; i++)
1546 {
1547 uint32_t tmp;
1548 tmp = i * high.g;
1549 tmp += (mask_g>>sh_g) * low.g;
1550 lookup_g[i] = (tmp/65535)<<sh_g;
1551 }
1552 for (i = 0; i <= mask_b>>sh_b; i++)
1553 {
1554 uint32_t tmp;
1555 tmp = i * high.b;
1556 tmp += (mask_b>>sh_b) * low.b;
1557 lookup_b[i] = (tmp/65535)<<sh_b;
1558 }
1559 1553
1560 /* apply table to input image (replacing colors by newly calculated ones) */ 1554 /* apply table to input image (replacing colors by newly calculated ones) */
1561 if (ximage->bits_per_pixel == 32 1555 if (ximage->bits_per_pixel == 32
1562 && (ximage->depth == 24 || ximage->depth == 32) 1556 && (ximage->depth == 24 || ximage->depth == 32)
1563 && ximage->byte_order == host_byte_order) 1557 && ximage->byte_order == host_byte_order)

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