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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.204 by sf-exg, Tue Apr 10 15:19:22 2012 UTC vs.
Revision 1.237 by root, Sun Jun 10 15:01:14 2012 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 <schmorp@schmorp.de> 6 * Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de>
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 * Copyright (c) 2010-2012 Emanuele Giaquinta <e.giaquinta@glauco.it>
9 * 9 *
10 * 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
11 * 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
12 * the Free Software Foundation; either version 2 of the License, or 12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version. 13 * (at your option) any later version.
… …
20 * 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
21 * along with this program; if not, write to the Free Software 21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 *---------------------------------------------------------------------*/ 23 *---------------------------------------------------------------------*/
24 24
25#include <math.h>
26#include "../config.h" /* NECESSARY */ 25#include "../config.h" /* NECESSARY */
27#include "rxvt.h" /* NECESSARY */ 26#include "rxvt.h" /* NECESSARY */
28 27
29#if XRENDER
30# include <X11/extensions/Xrender.h>
31#endif
32
33#ifndef FilterConvolution
34#define FilterConvolution "convolution"
35#endif
36
37#ifndef RepeatPad
38#define RepeatPad True
39#endif
40
41#ifdef HAVE_BG_PIXMAP 28#ifdef HAVE_BG_PIXMAP
42# if XRENDER
43static Picture
44create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha)
45{
46 Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);
47
48 XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);
49 XRenderPictureAttributes pa;
50 pa.repeat = True;
51 pa.component_alpha = component_alpha;
52 Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa);
53
54 XFreePixmap (dpy, pixmap);
55
56 return mask;
57}
58# endif
59 29
60void 30void
61rxvt_term::bg_destroy () 31rxvt_term::bg_destroy ()
62{ 32{
63#ifdef HAVE_PIXBUF 33# if ENABLE_TRANSPARENCY
64 if (pixbuf) 34 delete root_img;
65 g_object_unref (pixbuf); 35 root_img = 0;
66#endif 36# endif
67 37
68 if (bg_pixmap) 38# if BG_IMAGE_FROM_FILE
69 XFreePixmap (dpy, bg_pixmap); 39 fimage.destroy ();
40# endif
41
42 delete bg_img;
43 bg_img = 0;
70} 44}
71 45
72bool 46bool
73rxvt_term::bg_set_position (int x, int y) 47rxvt_term::bg_set_position (int x, int y)
74{ 48{
… …
84} 58}
85 59
86bool 60bool
87rxvt_term::bg_window_size_sensitive () 61rxvt_term::bg_window_size_sensitive ()
88{ 62{
89# ifdef ENABLE_TRANSPARENCY 63# if ENABLE_TRANSPARENCY
90 if (bg_flags & BG_IS_TRANSPARENT) 64 if (bg_flags & BG_IS_TRANSPARENT)
91 return true; 65 return true;
92# endif 66# endif
93 67
94# ifdef BG_IMAGE_FROM_FILE 68# if BG_IMAGE_FROM_FILE
95 if (bg_flags & BG_IS_FROM_FILE) 69 if (fimage.img)
96 { 70 {
97 if (bg_flags & BG_IS_SIZE_SENSITIVE) 71 if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
72 || fimage.img->w > szHint.width
73 || fimage.img->h > szHint.height)
98 return true; 74 return true;
99 } 75 }
100# endif 76# endif
101 77
102 return false; 78 return false;
103} 79}
104 80
105bool 81bool
106rxvt_term::bg_window_position_sensitive () 82rxvt_term::bg_window_position_sensitive ()
107{ 83{
108# ifdef ENABLE_TRANSPARENCY 84# if ENABLE_TRANSPARENCY
109 if (bg_flags & BG_IS_TRANSPARENT) 85 if (bg_flags & BG_IS_TRANSPARENT)
110 return true; 86 return true;
111# endif 87# endif
112 88
113# ifdef BG_IMAGE_FROM_FILE 89# if BG_IMAGE_FROM_FILE
114 if (bg_flags & BG_IS_FROM_FILE) 90 if (fimage.img)
115 { 91 {
116 if (bg_flags & BG_ROOT_ALIGN) 92 if (fimage.flags & IM_ROOT_ALIGN)
117 return true; 93 return true;
118 } 94 }
119# endif 95# endif
120 96
121 return false; 97 return false;
122} 98}
123 99
124# ifdef BG_IMAGE_FROM_FILE 100# if BG_IMAGE_FROM_FILE
125static inline int 101static inline int
126make_align_position (int align, int window_size, int image_size) 102make_align_position (int align, int window_size, int image_size)
127{ 103{
128 int diff = window_size - image_size;
129 int smaller = min (image_size, window_size);
130
131 if (align >= 0 && align <= 100) 104 if (align >= 0 && align <= 100)
132 return diff * align / 100; 105 return lerp (0, window_size - image_size, align);
133 else if (align > 100 && align <= 200) 106 else if (align > 100)
134 return (align - 100) * smaller / 100 + window_size - smaller; 107 return lerp (window_size - image_size, window_size, align - 100);
135 else if (align >= -100 && align < 0) 108 else
136 return (align + 100) * smaller / 100 - image_size; 109 return lerp (-image_size, 0, align + 100);
137 return 0;
138} 110}
139 111
140static inline int 112static inline int
141make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size) 113make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size)
142{ 114{
… …
152 124
153 min_it (dst_size, target_size - dst_pos); 125 min_it (dst_size, target_size - dst_pos);
154 return src_pos; 126 return src_pos;
155} 127}
156 128
129static void
130parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
131{
132 if (!strcasecmp (style, "tiled"))
133 {
134 flags = IM_TILE;
135 w = h = noScale;
136 x = y = 0;
137 }
138 else if (!strcasecmp (style, "aspect-stretched"))
139 {
140 flags = IM_KEEP_ASPECT;
141 w = h = windowScale;
142 x = y = centerAlign;
143 }
144 else if (!strcasecmp (style, "stretched"))
145 {
146 flags = 0;
147 w = h = windowScale;
148 x = y = centerAlign;
149 }
150 else if (!strcasecmp (style, "centered"))
151 {
152 flags = 0;
153 w = h = noScale;
154 x = y = centerAlign;
155 }
156 else if (!strcasecmp (style, "root-tiled"))
157 {
158 flags = IM_TILE|IM_ROOT_ALIGN;
159 w = h = noScale;
160 x = y = 0;
161 }
162}
163
157bool 164bool
158rxvt_term::bg_set_geometry (const char *geom, bool update) 165rxvt_image::set_geometry (const char *geom, bool update)
159{ 166{
160 bool changed = false; 167 bool changed = false;
161 int geom_flags = 0; 168 int geom_flags = 0;
162 int x = h_align; 169 int x = h_align;
163 int y = v_align; 170 int y = v_align;
164 unsigned int w = h_scale; 171 unsigned int w = h_scale;
165 unsigned int h = v_scale; 172 unsigned int h = v_scale;
166 unsigned long new_flags = 0; 173 uint8_t new_flags = 0;
167 174
168 if (geom == NULL) 175 if (geom == NULL)
169 return false; 176 return false;
170 177
171 if (geom[0]) 178 if (geom[0])
172 { 179 {
173 char **arr = rxvt_strsplit (':', geom); 180 char **arr = rxvt_strsplit (':', geom);
174 181
175 for (int i = 0; arr[i]; i++) 182 for (int i = 0; arr[i]; i++)
176 { 183 {
177 if (!strcasecmp (arr[i], "style=tiled")) 184 if (!strncasecmp (arr[i], "style=", 6))
178 { 185 {
179 new_flags = BG_TILE; 186 parse_style (arr[i] + 6, x, y, w, h, new_flags);
180 w = h = noScale;
181 x = y = 0;
182 geom_flags = WidthValue|HeightValue|XValue|YValue; 187 geom_flags = WidthValue|HeightValue|XValue|YValue;
183 } 188 }
184 else if (!strcasecmp (arr[i], "style=aspect-stretched"))
185 {
186 new_flags = BG_KEEP_ASPECT;
187 w = h = windowScale;
188 x = y = centerAlign;
189 geom_flags = WidthValue|HeightValue|XValue|YValue;
190 }
191 else if (!strcasecmp (arr[i], "style=stretched"))
192 {
193 new_flags = 0;
194 w = h = windowScale;
195 geom_flags = WidthValue|HeightValue;
196 }
197 else if (!strcasecmp (arr[i], "style=centered"))
198 {
199 new_flags = 0;
200 w = h = noScale;
201 x = y = centerAlign;
202 geom_flags = WidthValue|HeightValue|XValue|YValue;
203 }
204 else if (!strcasecmp (arr[i], "style=root-tiled"))
205 {
206 new_flags = BG_TILE|BG_ROOT_ALIGN;
207 w = h = noScale;
208 geom_flags = WidthValue|HeightValue;
209 }
210 else if (!strcasecmp (arr[i], "op=tile")) 189 else if (!strcasecmp (arr[i], "op=tile"))
211 new_flags |= BG_TILE; 190 new_flags |= IM_TILE;
212 else if (!strcasecmp (arr[i], "op=keep-aspect")) 191 else if (!strcasecmp (arr[i], "op=keep-aspect"))
213 new_flags |= BG_KEEP_ASPECT; 192 new_flags |= IM_KEEP_ASPECT;
214 else if (!strcasecmp (arr[i], "op=root-align")) 193 else if (!strcasecmp (arr[i], "op=root-align"))
215 new_flags |= BG_ROOT_ALIGN; 194 new_flags |= IM_ROOT_ALIGN;
216 195
217 // deprecated 196 // deprecated
218 else if (!strcasecmp (arr[i], "tile")) 197 else if (!strcasecmp (arr[i], "tile"))
219 { 198 {
220 new_flags |= BG_TILE; 199 new_flags |= IM_TILE;
221 w = h = noScale; 200 w = h = noScale;
222 geom_flags |= WidthValue|HeightValue; 201 geom_flags |= WidthValue|HeightValue;
223 } 202 }
224 else if (!strcasecmp (arr[i], "propscale")) 203 else if (!strcasecmp (arr[i], "propscale"))
225 { 204 {
226 new_flags |= BG_KEEP_ASPECT; 205 new_flags |= IM_KEEP_ASPECT;
227 w = h = windowScale; 206 w = h = windowScale;
228 geom_flags |= WidthValue|HeightValue; 207 geom_flags |= WidthValue|HeightValue;
229 } 208 }
230 else if (!strcasecmp (arr[i], "hscale")) 209 else if (!strcasecmp (arr[i], "hscale"))
231 { 210 {
232 new_flags |= BG_TILE; 211 new_flags |= IM_TILE;
233 w = windowScale; 212 w = windowScale;
234 h = noScale; 213 h = noScale;
235 geom_flags |= WidthValue|HeightValue; 214 geom_flags |= WidthValue|HeightValue;
236 } 215 }
237 else if (!strcasecmp (arr[i], "vscale")) 216 else if (!strcasecmp (arr[i], "vscale"))
238 { 217 {
239 new_flags |= BG_TILE; 218 new_flags |= IM_TILE;
240 h = windowScale; 219 h = windowScale;
241 w = noScale; 220 w = noScale;
242 geom_flags |= WidthValue|HeightValue; 221 geom_flags |= WidthValue|HeightValue;
243 } 222 }
244 else if (!strcasecmp (arr[i], "scale")) 223 else if (!strcasecmp (arr[i], "scale"))
… …
252 x = y = centerAlign; 231 x = y = centerAlign;
253 geom_flags |= WidthValue|HeightValue|XValue|YValue; 232 geom_flags |= WidthValue|HeightValue|XValue|YValue;
254 } 233 }
255 else if (!strcasecmp (arr[i], "root")) 234 else if (!strcasecmp (arr[i], "root"))
256 { 235 {
257 new_flags |= BG_TILE|BG_ROOT_ALIGN; 236 new_flags |= IM_TILE|IM_ROOT_ALIGN;
258 w = h = noScale; 237 w = h = noScale;
259 geom_flags |= WidthValue|HeightValue; 238 geom_flags |= WidthValue|HeightValue;
260 } 239 }
261 240
262 else 241 else
… …
264 } /* done parsing ops */ 243 } /* done parsing ops */
265 244
266 rxvt_free_strsplit (arr); 245 rxvt_free_strsplit (arr);
267 } 246 }
268 247
269 new_flags |= bg_flags & ~BG_GEOMETRY_FLAGS; 248 new_flags |= flags & ~IM_GEOMETRY_FLAGS;
270 249
271 if (!update) 250 if (!update)
272 { 251 {
273 if (!(geom_flags & XValue)) 252 if (!(geom_flags & XValue))
274 x = y = defaultAlign; 253 x = y = defaultAlign;
… …
281 h = w; 260 h = w;
282 else if (!(geom_flags & WidthValue)) 261 else if (!(geom_flags & WidthValue))
283 w = h; 262 w = h;
284 } 263 }
285 264
286 min_it (w, 1000);
287 min_it (h, 1000);
288 clamp_it (x, -100, 200); 265 clamp_it (x, -100, 200);
289 clamp_it (y, -100, 200); 266 clamp_it (y, -100, 200);
290 267
291 if (bg_flags != new_flags 268 if (flags != new_flags
292 || h_scale != w 269 || h_scale != w
293 || v_scale != h 270 || v_scale != h
294 || h_align != x 271 || h_align != x
295 || v_align != y) 272 || v_align != y)
296 { 273 {
297 bg_flags = new_flags; 274 flags = new_flags;
298 h_scale = w; 275 h_scale = w;
299 v_scale = h; 276 v_scale = h;
300 h_align = x; 277 h_align = x;
301 v_align = y; 278 v_align = y;
302 changed = true; 279 changed = true;
303 } 280 }
304 281
282 if (is_size_sensitive ())
283 flags |= IM_IS_SIZE_SENSITIVE;
284 else
285 flags &= ~IM_IS_SIZE_SENSITIVE;
286
305 return changed; 287 return changed;
306} 288}
307 289
308void 290void
309rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y) 291rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
310{ 292{
293 int image_width = image.img->w;
294 int image_height = image.img->h;
311 int target_width = szHint.width; 295 int target_width = szHint.width;
312 int target_height = szHint.height; 296 int target_height = szHint.height;
297 int h_scale = min (image.h_scale, 32767 * 100 / target_width);
298 int v_scale = min (image.v_scale, 32767 * 100 / target_height);
313 299
314 w = h_scale * target_width / 100; 300 w = h_scale * target_width / 100;
315 h = v_scale * target_height / 100; 301 h = v_scale * target_height / 100;
316 302
317 if (bg_flags & BG_KEEP_ASPECT) 303 if (image.flags & IM_KEEP_ASPECT)
318 { 304 {
319 float scale = (float)w / image_width; 305 float scale = (float)w / image_width;
320 min_it (scale, (float)h / image_height); 306 min_it (scale, (float)h / image_height);
321 w = image_width * scale + 0.5; 307 w = image_width * scale + 0.5;
322 h = image_height * scale + 0.5; 308 h = image_height * scale + 0.5;
323 } 309 }
324 310
325 if (!w) w = image_width; 311 if (!w) w = image_width;
326 if (!h) h = image_height; 312 if (!h) h = image_height;
327 313
328 if (bg_flags & BG_ROOT_ALIGN) 314 if (image.flags & IM_ROOT_ALIGN)
329 { 315 {
330 x = -target_x; 316 x = -target_x;
331 y = -target_y; 317 y = -target_y;
332 } 318 }
333 else 319 else
334 { 320 {
335 x = make_align_position (h_align, target_width, w); 321 x = make_align_position (image.h_align, target_width, w);
336 y = make_align_position (v_align, target_height, h); 322 y = make_align_position (image.v_align, target_height, h);
337 }
338
339 if (!(bg_flags & BG_TILE)
340 || h_scale || v_scale
341 || (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
342 || image_width > target_width || image_height > target_height)
343 bg_flags |= BG_IS_SIZE_SENSITIVE;
344 else
345 bg_flags &= ~BG_IS_SIZE_SENSITIVE;
346}
347
348# ifdef HAVE_PIXBUF
349bool
350rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
351 int src_x, int src_y, int dst_x, int dst_y,
352 unsigned int width, unsigned int height)
353{
354 XImage *ximage;
355 char *data, *line;
356 int bytes_per_pixel;
357 int width_r, width_g, width_b;
358 int sh_r, sh_g, sh_b;
359 int rowstride;
360 int channels;
361 unsigned char *row;
362
363 if (visual->c_class != TrueColor)
364 return false;
365
366 if (depth == 24 || depth == 32)
367 bytes_per_pixel = 4;
368 else if (depth == 15 || depth == 16)
369 bytes_per_pixel = 2;
370 else
371 return false;
372
373 width_r = ecb_popcount32 (visual->red_mask);
374 width_g = ecb_popcount32 (visual->green_mask);
375 width_b = ecb_popcount32 (visual->blue_mask);
376
377 if (width_r > 8 || width_g > 8 || width_b > 8)
378 return false;
379
380 sh_r = ecb_ctz32 (visual->red_mask);
381 sh_g = ecb_ctz32 (visual->green_mask);
382 sh_b = ecb_ctz32 (visual->blue_mask);
383
384 if (width > INT_MAX / height / bytes_per_pixel)
385 return false;
386
387 data = (char *)malloc (width * height * bytes_per_pixel);
388 if (!data)
389 return false;
390
391 ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
392 width, height, bytes_per_pixel * 8, 0);
393 if (!ximage)
394 { 323 }
395 free (data);
396 return false;
397 }
398
399 ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
400
401 rowstride = gdk_pixbuf_get_rowstride (pixbuf);
402 channels = gdk_pixbuf_get_n_channels (pixbuf);
403 row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
404 line = data;
405
406 for (int y = 0; y < height; y++)
407 {
408 for (int x = 0; x < width; x++)
409 {
410 unsigned char *pixel = row + x * channels;
411 uint32_t value;
412
413 value = ((pixel[0] >> (8 - width_r)) << sh_r)
414 | ((pixel[1] >> (8 - width_g)) << sh_g)
415 | ((pixel[2] >> (8 - width_b)) << sh_b);
416
417 if (bytes_per_pixel == 4)
418 ((uint32_t *)line)[x] = value;
419 else
420 ((uint16_t *)line)[x] = value;
421 }
422
423 row += rowstride;
424 line += ximage->bytes_per_line;
425 }
426
427 XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
428 XDestroyImage (ximage);
429 return true;
430} 324}
431 325
432bool 326bool
433rxvt_term::render_image (bool transparent) 327rxvt_term::render_image (rxvt_image &image)
434{ 328{
435 if (!pixbuf)
436 return false;
437
438 if (transparent
439 && !(bg_flags & BG_HAS_RENDER))
440 return false;
441
442 GdkPixbuf *result;
443
444 int image_width = gdk_pixbuf_get_width (pixbuf);
445 int image_height = gdk_pixbuf_get_height (pixbuf);
446
447 int target_width = szHint.width; 329 int target_width = szHint.width;
448 int target_height = szHint.height; 330 int target_height = szHint.height;
449 int new_pmap_width = target_width;
450 int new_pmap_height = target_height;
451 331
452 int x = 0; 332 int x = 0;
453 int y = 0; 333 int y = 0;
454 int w = 0; 334 int w = 0;
455 int h = 0; 335 int h = 0;
456 336
457 get_image_geometry (image_width, image_height, w, h, x, y); 337 get_image_geometry (image, w, h, x, y);
458 338
459 if (!(bg_flags & BG_ROOT_ALIGN) 339 if (!(image.flags & IM_ROOT_ALIGN)
460 && (x >= target_width 340 && (x >= target_width
461 || y >= target_height 341 || y >= target_height
462 || x + w <= 0 342 || x + w <= 0
463 || y + h <= 0)) 343 || y + h <= 0))
464 return false; 344 return false;
465 345
466 result = pixbuf; 346 rxvt_img *img = image.img->scale (w, h);
467 347
468 if (w != image_width 348 if (image.flags & IM_TILE)
469 || h != image_height) 349 img->repeat_mode (RepeatNormal);
470 {
471 result = gdk_pixbuf_scale_simple (pixbuf,
472 w, h,
473 GDK_INTERP_BILINEAR);
474 }
475
476 if (!result)
477 return false;
478
479 bool ret = false;
480
481 XGCValues gcv;
482 GC gc;
483 Pixmap root_pmap;
484
485 image_width = gdk_pixbuf_get_width (result);
486 image_height = gdk_pixbuf_get_height (result);
487
488 if (transparent)
489 {
490 root_pmap = bg_pixmap;
491 bg_pixmap = None;
492 }
493 else 350 else
494 { 351 img->repeat_mode (RepeatNone);
352 img->sub_rect (-x, -y, target_width, target_height)->replace (img);
353
495 if (bg_flags & BG_TILE) 354 if (bg_flags & BG_IS_VALID)
496 {
497 new_pmap_width = min (image_width, target_width);
498 new_pmap_height = min (image_height, target_height);
499 }
500 } 355 {
501 356 double factor = image.alpha * 1. / 0xffff;
502 if (bg_pixmap == None 357 bg_img->blend (img, factor)->replace (img);
503 || bg_pmap_width != new_pmap_width
504 || bg_pmap_height != new_pmap_height)
505 { 358 }
506 if (bg_pixmap)
507 XFreePixmap (dpy, bg_pixmap);
508 bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
509 bg_pmap_width = new_pmap_width;
510 bg_pmap_height = new_pmap_height;
511 }
512 359
513 gcv.foreground = pix_colors[Color_bg];
514 gc = XCreateGC (dpy, vt, GCForeground, &gcv);
515
516 if (gc)
517 {
518 if (bg_flags & BG_TILE)
519 {
520 Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
521 pixbuf_to_pixmap (result, tile, gc,
522 0, 0,
523 0, 0,
524 image_width, image_height);
525
526 gcv.tile = tile;
527 gcv.fill_style = FillTiled;
528 gcv.ts_x_origin = x;
529 gcv.ts_y_origin = y;
530 XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
531
532 XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
533 XFreePixmap (dpy, tile);
534 }
535 else
536 {
537 int src_x, src_y, dst_x, dst_y;
538 int dst_width, dst_height;
539
540 src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
541 src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
542
543 if (dst_x > 0 || dst_y > 0
544 || dst_x + dst_width < new_pmap_width
545 || dst_y + dst_height < new_pmap_height)
546 XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
547
548 if (dst_x < new_pmap_width && dst_y < new_pmap_height)
549 pixbuf_to_pixmap (result, bg_pixmap, gc,
550 src_x, src_y,
551 dst_x, dst_y,
552 dst_width, dst_height);
553 }
554
555#if XRENDER
556 if (transparent)
557 {
558 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); 360 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
361 img->convert_format (format, pix_colors [Color_bg])->replace (img);
559 362
560 Picture src = XRenderCreatePicture (dpy, root_pmap, format, 0, 0); 363 delete bg_img;
364 bg_img = img;
561 365
562 Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
563
564 Picture mask = create_xrender_mask (dpy, vt, False, False);
565
566 XRenderColor mask_c;
567
568 mask_c.alpha = 0x8000;
569 mask_c.red =
570 mask_c.green =
571 mask_c.blue = 0;
572 XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
573
574 XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
575
576 XRenderFreePicture (dpy, src);
577 XRenderFreePicture (dpy, dst);
578 XRenderFreePicture (dpy, mask);
579 }
580#endif
581
582 XFreeGC (dpy, gc);
583
584 ret = true;
585 }
586
587 if (result != pixbuf)
588 g_object_unref (result);
589
590 if (transparent)
591 XFreePixmap (dpy, root_pmap);
592
593 return ret; 366 return true;
594} 367}
595# endif /* HAVE_PIXBUF */
596 368
369rxvt_image::rxvt_image ()
370{
371 alpha = 0xffff;
372 flags = 0;
373 h_scale =
374 v_scale = defaultScale;
375 h_align =
376 v_align = defaultAlign;
377
378 img = 0;
379}
380
597bool 381bool
598rxvt_term::bg_set_file (const char *file) 382rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
599{ 383{
600 if (!file || !*file) 384 if (!file || !*file)
601 return false; 385 return false;
602 386
603 bool ret = false;
604 const char *p = strchr (file, ';'); 387 const char *p = strchr (file, ';');
605 388
606 if (p) 389 if (p)
607 { 390 {
608 size_t len = p - file; 391 size_t len = p - file;
… …
610 memcpy (f, file, len); 393 memcpy (f, file, len);
611 f[len] = '\0'; 394 f[len] = '\0';
612 file = f; 395 file = f;
613 } 396 }
614 397
615# ifdef HAVE_PIXBUF 398 bool ret = set_file (s, file);
616 GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL); 399 alpha = 0x8000;
617 if (image)
618 {
619 if (pixbuf)
620 g_object_unref (pixbuf);
621 pixbuf = image;
622 bg_flags |= BG_IS_FROM_FILE;
623 ret = true;
624 }
625# endif
626
627 if (ret) 400 if (ret)
628 {
629 if (p)
630 bg_set_geometry (p + 1); 401 set_geometry (p ? p + 1 : "");
631 else
632 bg_set_default_geometry ();
633 }
634
635 return ret; 402 return ret;
636} 403}
637 404
405bool
406rxvt_image::set_file (rxvt_screen *s, const char *file)
407{
408 delete img;
409 img = rxvt_img::new_from_file (s, file);
410 return img != 0;
411}
412
638# endif /* BG_IMAGE_FROM_FILE */ 413# endif /* BG_IMAGE_FROM_FILE */
639 414
640# ifdef ENABLE_TRANSPARENCY
641bool 415bool
642rxvt_term::bg_set_transparent () 416image_effects::set_blur (const char *geom)
643{
644 if (!(bg_flags & BG_IS_TRANSPARENT))
645 {
646 bg_flags |= BG_IS_TRANSPARENT;
647 return true;
648 }
649
650 return false;
651}
652
653bool
654rxvt_term::bg_set_blur (const char *geom)
655{ 417{
656 bool changed = false; 418 bool changed = false;
657 unsigned int hr, vr; 419 unsigned int hr, vr;
658 int junk; 420 int junk;
659 int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr); 421 int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
… …
676 { 438 {
677 changed = true; 439 changed = true;
678 v_blurRadius = vr; 440 v_blurRadius = vr;
679 } 441 }
680 442
681 if (h_blurRadius && v_blurRadius)
682 bg_flags |= BG_NEEDS_BLUR;
683 else
684 bg_flags &= ~BG_NEEDS_BLUR;
685
686 return changed; 443 return changed;
687} 444}
688 445
689void
690rxvt_term::set_tint_shade_flags ()
691{
692 if (shade != 100 || (bg_flags & BG_TINT_SET))
693 bg_flags |= BG_NEEDS_TINT;
694 else
695 bg_flags &= ~BG_NEEDS_TINT;
696}
697
698bool 446bool
699rxvt_term::bg_set_tint (rxvt_color &new_tint) 447image_effects::set_tint (const rxvt_color &new_tint)
700{ 448{
701 if (!(bg_flags & BG_TINT_SET) || tint != new_tint) 449 if (!tint_set || tint != new_tint)
702 { 450 {
703 tint = new_tint; 451 tint = new_tint;
704 bg_flags |= BG_TINT_SET; 452 tint_set = true;
705 453
706 rgba c;
707 tint.get (c);
708 if ((c.r <= 0x00ff || c.r >= 0xff00)
709 && (c.g <= 0x00ff || c.g >= 0xff00)
710 && (c.b <= 0x00ff || c.b >= 0xff00))
711 bg_flags |= BG_TINT_BITAND;
712 else
713 bg_flags &= ~BG_TINT_BITAND;
714
715 set_tint_shade_flags ();
716 return true; 454 return true;
717 } 455 }
718 456
719 return false; 457 return false;
720} 458}
721 459
722bool 460bool
723rxvt_term::bg_set_shade (const char *shade_str) 461image_effects::set_shade (const char *shade_str)
724{ 462{
725 int new_shade = atoi (shade_str); 463 int new_shade = atoi (shade_str);
726 464
727 clamp_it (new_shade, -100, 200); 465 clamp_it (new_shade, -100, 200);
728 if (new_shade < 0) 466 if (new_shade < 0)
729 new_shade = 200 - (100 + new_shade); 467 new_shade = 200 - (100 + new_shade);
730 468
731 if (new_shade != shade) 469 if (new_shade != shade)
732 { 470 {
733 shade = new_shade; 471 shade = new_shade;
734 set_tint_shade_flags ();
735 return true; 472 return true;
736 } 473 }
737 474
738 return false; 475 return false;
739} 476}
740 477
741#if XRENDER 478# if ENABLE_TRANSPARENCY
742static void
743get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
744{
745 double sigma = radius / 2.0;
746 double scale = sqrt (2.0 * M_PI) * sigma;
747 double sum = 0.0;
748
749 for (int i = 0; i < width; i++)
750 {
751 double x = i - width / 2;
752 kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
753 sum += kernel[i];
754 }
755
756 params[0] = XDoubleToFixed (width);
757 params[1] = XDoubleToFixed (1);
758
759 for (int i = 0; i < width; i++)
760 params[i+2] = XDoubleToFixed (kernel[i] / sum);
761}
762#endif
763
764bool
765rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height, int depth)
766{
767 bool ret = false;
768#if XRENDER
769 if (!(bg_flags & BG_HAS_RENDER_CONV))
770 return false;
771
772 int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
773 double *kernel = (double *)malloc (size * sizeof (double));
774 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
775
776 XRenderPictureAttributes pa;
777 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
778
779 pa.repeat = RepeatPad;
780 Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
781 Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
782 Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
783 XFreePixmap (dpy, tmp);
784
785 if (kernel && params)
786 {
787 size = h_blurRadius * 2 + 1;
788 get_gaussian_kernel (h_blurRadius, size, kernel, params);
789
790 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
791 XRenderComposite (dpy,
792 PictOpSrc,
793 src,
794 None,
795 dst,
796 0, 0,
797 0, 0,
798 0, 0,
799 width, height);
800
801 ::swap (src, dst);
802
803 size = v_blurRadius * 2 + 1;
804 get_gaussian_kernel (v_blurRadius, size, kernel, params);
805 ::swap (params[0], params[1]);
806
807 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
808 XRenderComposite (dpy,
809 PictOpSrc,
810 src,
811 None,
812 dst,
813 0, 0,
814 0, 0,
815 0, 0,
816 width, height);
817
818 ret = true;
819 }
820
821 free (kernel);
822 free (params);
823 XRenderFreePicture (dpy, src);
824 XRenderFreePicture (dpy, dst);
825#endif
826 return ret;
827}
828
829bool
830rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
831{
832 bool ret = false;
833
834 if (shade == 100 && (bg_flags & BG_TINT_BITAND))
835 {
836 XGCValues gcv;
837 GC gc;
838
839 /* In this case we can tint image server-side getting significant
840 * performance improvements, as we eliminate XImage transfer
841 */
842 gcv.foreground = Pixel (tint);
843 gcv.function = GXand;
844 gcv.fill_style = FillSolid;
845 gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
846 if (gc)
847 {
848 XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
849 ret = true;
850 XFreeGC (dpy, gc);
851 }
852 }
853# if XRENDER
854 else if (bg_flags & BG_HAS_RENDER)
855 {
856 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
857
858 if (bg_flags & BG_TINT_SET)
859 tint.get (c);
860
861 if (shade <= 100)
862 {
863 c.r = c.r * shade / 100;
864 c.g = c.g * shade / 100;
865 c.b = c.b * shade / 100;
866 }
867 else
868 {
869 c.r = c.r * (200 - shade) / 100;
870 c.g = c.g * (200 - shade) / 100;
871 c.b = c.b * (200 - shade) / 100;
872 }
873
874 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
875
876 Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
877
878 Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
879
880 Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
881
882 XRenderColor mask_c;
883
884 mask_c.alpha = 0xffff;
885 mask_c.red =
886 mask_c.green =
887 mask_c.blue = 0;
888 XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
889
890 mask_c.alpha = 0;
891 mask_c.red = 0xffff - c.r;
892 mask_c.green = 0xffff - c.g;
893 mask_c.blue = 0xffff - c.b;
894 XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
895
896 XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
897
898 if (shade > 100)
899 {
900 mask_c.alpha = 0;
901 mask_c.red =
902 mask_c.green =
903 mask_c.blue = 0xffff * (shade - 100) / 100;
904 XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
905
906 XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
907 }
908
909 ret = true;
910
911 XRenderFreePicture (dpy, mask_pic);
912 XRenderFreePicture (dpy, overlay_pic);
913 XRenderFreePicture (dpy, back_pic);
914 }
915# endif
916
917 return ret;
918}
919
920/* 479/*
921 * Builds a pixmap of the same size as the terminal window that contains 480 * Builds a pixmap of the same size as the terminal window that contains
922 * the tiled portion of the root pixmap that is supposed to be covered by 481 * the tiled portion of the root pixmap that is supposed to be covered by
923 * our window. 482 * our window.
924 */ 483 */
925bool 484bool
926rxvt_term::make_transparency_pixmap () 485rxvt_term::render_root_image ()
927{ 486{
928 bool ret = false;
929
930 /* root dimensions may change from call to call - but Display structure should 487 /* root dimensions may change from call to call - but Display structure should
931 * be always up-to-date, so let's use it : 488 * be always up-to-date, so let's use it :
932 */ 489 */
933 int screen = display->screen; 490 int screen = display->screen;
934 int root_depth = DefaultDepth (dpy, screen);
935 int root_width = DisplayWidth (dpy, screen); 491 int root_width = DisplayWidth (dpy, screen);
936 int root_height = DisplayHeight (dpy, screen); 492 int root_height = DisplayHeight (dpy, screen);
937 unsigned int root_pmap_width, root_pmap_height;
938 int window_width = szHint.width; 493 int window_width = szHint.width;
939 int window_height = szHint.height; 494 int window_height = szHint.height;
940 int sx, sy; 495 int sx, sy;
941 XGCValues gcv;
942 GC gc;
943 496
944 sx = target_x; 497 sx = target_x;
945 sy = target_y; 498 sy = target_y;
499
500 if (!root_img)
501 return false;
946 502
947 /* check if we are outside of the visible part of the virtual screen : */ 503 /* check if we are outside of the visible part of the virtual screen : */
948 if (sx + window_width <= 0 || sy + window_height <= 0 504 if (sx + window_width <= 0 || sy + window_height <= 0
949 || sx >= root_width || sy >= root_height) 505 || sx >= root_width || sy >= root_height)
950 return 0; 506 return 0;
951 507
952 // validate root pixmap and get its size 508 while (sx < 0) sx += root_img->w;
953 if (root_pixmap != None) 509 while (sy < 0) sy += root_img->h;
954 {
955 Window wdummy;
956 int idummy;
957 unsigned int udummy;
958 510
959 allowedxerror = -1; 511 rxvt_img *img = root_img->sub_rect (sx, sy, window_width, window_height);
960 512
961 if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy)) 513 if (root_effects.need_blur ())
962 root_pixmap = None; 514 img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
963 515
964 allowedxerror = 0; 516 if (root_effects.need_tint ())
965 } 517 tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
966 518
967 Pixmap recoded_root_pmap = root_pixmap;
968
969 if (root_pixmap != None && root_depth != depth)
970 {
971#if XRENDER
972 if (bg_flags & BG_HAS_RENDER)
973 {
974 recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
975
976 XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
977 Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
978
979 XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual); 519 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
980 Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0); 520 img->convert_format (format, pix_colors [Color_bg])->replace (img);
981 521
982 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height); 522 delete bg_img;
523 bg_img = img;
983 524
984 XRenderFreePicture (dpy, src);
985 XRenderFreePicture (dpy, dst);
986 }
987 else
988#endif
989 recoded_root_pmap = None;
990 }
991
992 if (recoded_root_pmap == None)
993 return 0;
994
995 if (bg_pixmap == None
996 || bg_pmap_width != window_width
997 || bg_pmap_height != window_height)
998 {
999 if (bg_pixmap)
1000 XFreePixmap (dpy, bg_pixmap);
1001 bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1002 bg_pmap_width = window_width;
1003 bg_pmap_height = window_height;
1004 }
1005
1006 /* straightforward pixmap copy */
1007 while (sx < 0) sx += root_pmap_width;
1008 while (sy < 0) sy += root_pmap_height;
1009
1010 gcv.tile = recoded_root_pmap;
1011 gcv.fill_style = FillTiled;
1012 gcv.ts_x_origin = -sx;
1013 gcv.ts_y_origin = -sy;
1014 gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1015
1016 if (gc)
1017 {
1018 XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1019 ret = true;
1020 unsigned long tr_flags = bg_flags & BG_EFFECTS_FLAGS;
1021
1022 if (!(bg_flags & BG_CLIENT_RENDER))
1023 {
1024 if (bg_flags & BG_NEEDS_BLUR)
1025 {
1026 if (blur_pixmap (bg_pixmap, visual, window_width, window_height, depth))
1027 tr_flags &= ~BG_NEEDS_BLUR;
1028 }
1029 if (bg_flags & BG_NEEDS_TINT)
1030 {
1031 if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1032 tr_flags &= ~BG_NEEDS_TINT;
1033 }
1034 if (tr_flags & BG_NEEDS_TINT)
1035 {
1036 XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1037 if (ximage)
1038 {
1039 /* our own client-side tinting */
1040 tint_ximage (DefaultVisual (dpy, display->screen), ximage);
1041
1042 XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
1043 XDestroyImage (ximage);
1044 }
1045 }
1046 } /* server side rendering completed */
1047
1048 XFreeGC (dpy, gc);
1049 }
1050
1051 if (recoded_root_pmap != root_pixmap)
1052 XFreePixmap (dpy, recoded_root_pmap);
1053
1054 return ret; 525 return true;
1055} 526}
1056 527
1057void 528void
1058rxvt_term::bg_set_root_pixmap () 529rxvt_term::bg_set_root_pixmap ()
1059{ 530{
1060 Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]); 531 delete root_img;
1061 if (new_root_pixmap == None) 532 root_img = rxvt_img::new_from_root (this);
1062 new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1063
1064 root_pixmap = new_root_pixmap;
1065} 533}
1066# endif /* ENABLE_TRANSPARENCY */ 534# endif /* ENABLE_TRANSPARENCY */
1067 535
1068bool 536void
1069rxvt_term::bg_render () 537rxvt_term::bg_render ()
1070{ 538{
1071 bool transparent = false; 539 if (bg_flags & BG_INHIBIT_RENDER)
540 return;
1072 541
1073 bg_invalidate (); 542 bg_invalidate ();
1074# ifdef ENABLE_TRANSPARENCY 543# if ENABLE_TRANSPARENCY
1075 if (bg_flags & BG_IS_TRANSPARENT) 544 if (bg_flags & BG_IS_TRANSPARENT)
1076 { 545 {
1077 /* we need to re-generate transparency pixmap in that case ! */ 546 /* we need to re-generate transparency pixmap in that case ! */
1078 transparent = make_transparency_pixmap (); 547 if (render_root_image ())
1079 if (transparent)
1080 bg_flags |= BG_IS_VALID; 548 bg_flags |= BG_IS_VALID;
1081 } 549 }
1082# endif 550# endif
1083 551
1084# ifdef BG_IMAGE_FROM_FILE 552# if BG_IMAGE_FROM_FILE
1085 if (bg_flags & BG_IS_FROM_FILE) 553 if (fimage.img)
1086 { 554 {
1087 if (render_image (transparent)) 555 if (render_image (fimage))
1088 bg_flags |= BG_IS_VALID; 556 bg_flags |= BG_IS_VALID;
1089 } 557 }
1090# endif 558# endif
1091 559
1092 if (!(bg_flags & BG_IS_VALID)) 560 if (!(bg_flags & BG_IS_VALID))
1093 { 561 {
1094 if (bg_pixmap != None) 562 delete bg_img;
1095 { 563 bg_img = 0;
1096 XFreePixmap (dpy, bg_pixmap);
1097 bg_pixmap = None;
1098 }
1099 } 564 }
1100 565
1101 scr_recolour (false); 566 scr_recolour (false);
1102 bg_flags |= BG_NEEDS_REFRESH; 567 bg_flags |= BG_NEEDS_REFRESH;
1103 568
1104 bg_valid_since = ev::now (); 569 bg_valid_since = ev::now ();
1105
1106 return true;
1107} 570}
1108 571
1109void 572void
1110rxvt_term::bg_init () 573rxvt_term::bg_init ()
1111{ 574{
1112#ifdef ENABLE_TRANSPARENCY 575#if BG_IMAGE_FROM_FILE
1113 shade = 100; 576 if (rs[Rs_backgroundPixmap])
577 {
578 if (fimage.set_file_geometry (this, rs[Rs_backgroundPixmap])
579 && !bg_window_position_sensitive ())
580 update_background ();
581 }
1114#endif 582#endif
1115
1116 bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);
1117#if XRENDER
1118 int major, minor;
1119 if (XRenderQueryVersion (dpy, &major, &minor))
1120 bg_flags |= BG_HAS_RENDER;
1121 XFilters *filters = XRenderQueryFilters (dpy, vt);
1122 if (filters)
1123 {
1124 for (int i = 0; i < filters->nfilter; i++)
1125 if (!strcmp (filters->filter[i], FilterConvolution))
1126 bg_flags |= BG_HAS_RENDER_CONV;
1127
1128 XFree (filters);
1129 }
1130#endif
1131}
1132
1133#endif /* HAVE_BG_PIXMAP */
1134
1135#ifdef ENABLE_TRANSPARENCY
1136/* based on code from aterm-0.4.2 */
1137
1138static inline void
1139fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1140{
1141 for (int i = 0; i <= mask >> sh; i++)
1142 {
1143 uint32_t tmp;
1144 tmp = i * high;
1145 tmp += (mask >> sh) * low;
1146 lookup[i] = (tmp / 0xffff) << sh;
1147 }
1148} 583}
1149 584
1150void 585void
1151rxvt_term::tint_ximage (Visual *visual, XImage *ximage) 586rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1152{ 587{
1153 int sh_r, sh_g, sh_b;
1154 uint32_t mask_r, mask_g, mask_b;
1155 uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1156 unsigned short low;
1157 int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1158
1159 if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1160
1161 /* for convenience */
1162 mask_r = visual->red_mask;
1163 mask_g = visual->green_mask;
1164 mask_b = visual->blue_mask;
1165
1166 /* boring lookup table pre-initialization */
1167 switch (ximage->depth)
1168 {
1169 case 15:
1170 if ((mask_r != 0x7c00) ||
1171 (mask_g != 0x03e0) ||
1172 (mask_b != 0x001f))
1173 return;
1174 lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1175 lookup_r = lookup;
1176 lookup_g = lookup+32;
1177 lookup_b = lookup+32+32;
1178 sh_r = 10;
1179 sh_g = 5;
1180 sh_b = 0;
1181 break;
1182 case 16:
1183 if ((mask_r != 0xf800) ||
1184 (mask_g != 0x07e0) ||
1185 (mask_b != 0x001f))
1186 return;
1187 lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1188 lookup_r = lookup;
1189 lookup_g = lookup+32;
1190 lookup_b = lookup+32+64;
1191 sh_r = 11;
1192 sh_g = 5;
1193 sh_b = 0;
1194 break;
1195 case 24:
1196 if ((mask_r != 0xff0000) ||
1197 (mask_g != 0x00ff00) ||
1198 (mask_b != 0x0000ff))
1199 return;
1200 lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1201 lookup_r = lookup;
1202 lookup_g = lookup+256;
1203 lookup_b = lookup+256+256;
1204 sh_r = 16;
1205 sh_g = 8;
1206 sh_b = 0;
1207 break;
1208 case 32:
1209 if ((mask_r != 0xff0000) ||
1210 (mask_g != 0x00ff00) ||
1211 (mask_b != 0x0000ff))
1212 return;
1213 lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1214 lookup_r = lookup;
1215 lookup_g = lookup+256;
1216 lookup_b = lookup+256+256;
1217 sh_r = 16;
1218 sh_g = 8;
1219 sh_b = 0;
1220 break;
1221 default:
1222 return; /* we do not support this color depth */
1223 }
1224
1225 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC); 588 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1226 589
1227 if (bg_flags & BG_TINT_SET) 590 if (tint_set)
1228 tint.get (c); 591 tint.get (c);
1229 592
1230 /* prepare limits for color transformation (each channel is handled separately) */
1231 if (shade > 100) 593 if (shade > 100)
1232 { 594 {
1233 c.r = c.r * (200 - shade) / 100; 595 c.r = c.r * (200 - shade) / 100;
1234 c.g = c.g * (200 - shade) / 100; 596 c.g = c.g * (200 - shade) / 100;
1235 c.b = c.b * (200 - shade) / 100; 597 c.b = c.b * (200 - shade) / 100;
1236
1237 low = 0xffff * (shade - 100) / 100;
1238 } 598 }
1239 else 599 else
1240 { 600 {
1241 c.r = c.r * shade / 100; 601 c.r = c.r * shade / 100;
1242 c.g = c.g * shade / 100; 602 c.g = c.g * shade / 100;
1243 c.b = c.b * shade / 100; 603 c.b = c.b * shade / 100;
1244
1245 low = 0;
1246 }
1247
1248 /* fill our lookup tables */
1249 fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1250 fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1251 fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1252
1253 /* apply table to input image (replacing colors by newly calculated ones) */
1254 if (ximage->bits_per_pixel == 32
1255 && (ximage->depth == 24 || ximage->depth == 32)
1256 && ximage->byte_order == host_byte_order)
1257 { 604 }
1258 uint32_t *p1, *pf, *p, *pl;
1259 p1 = (uint32_t *) ximage->data;
1260 pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1261 605
1262 while (p1 < pf) 606 img->contrast (c.r, c.g, c.b, c.a);
1263 { 607
1264 p = p1; 608 if (shade > 100)
1265 pl = p1 + ximage->width;
1266 for (; p < pl; p++)
1267 {
1268 *p = lookup_r[(*p & 0xff0000) >> 16] |
1269 lookup_g[(*p & 0x00ff00) >> 8] |
1270 lookup_b[(*p & 0x0000ff)] |
1271 (*p & 0xff000000);
1272 }
1273 p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1274 }
1275 } 609 {
1276 else 610 c.a = 0xffff;
611 c.r =
612 c.g =
613 c.b = 0xffff * (shade - 100) / 100;
614 img->brightness (c.r, c.g, c.b, c.a);
1277 { 615 }
1278 for (int y = 0; y < ximage->height; y++)
1279 for (int x = 0; x < ximage->width; x++)
1280 {
1281 unsigned long pixel = XGetPixel (ximage, x, y);
1282 pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1283 lookup_g[(pixel & mask_g) >> sh_g] |
1284 lookup_b[(pixel & mask_b) >> sh_b];
1285 XPutPixel (ximage, x, y, pixel);
1286 }
1287 }
1288
1289 free (lookup);
1290} 616}
1291#endif /* ENABLE_TRANSPARENCY */ 617
618#endif /* HAVE_BG_PIXMAP */

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