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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.201 by sf-exg, Sat Feb 4 21:47:06 2012 UTC vs.
Revision 1.238 by sf-exg, Sun Jun 10 15:48:08 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 void
141make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size) 113parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
142{ 114{
143 int src_pos = 0; 115 if (!strcasecmp (style, "tiled"))
144 dst_pos = pos;
145 dst_size = size;
146 if (pos < 0)
147 {
148 src_pos = -pos;
149 dst_pos = 0;
150 dst_size += pos;
151 } 116 {
152 117 flags = IM_TILE;
153 min_it (dst_size, target_size - dst_pos); 118 w = h = noScale;
154 return src_pos; 119 x = y = 0;
120 }
121 else if (!strcasecmp (style, "aspect-stretched"))
122 {
123 flags = IM_KEEP_ASPECT;
124 w = h = windowScale;
125 x = y = centerAlign;
126 }
127 else if (!strcasecmp (style, "stretched"))
128 {
129 flags = 0;
130 w = h = windowScale;
131 x = y = centerAlign;
132 }
133 else if (!strcasecmp (style, "centered"))
134 {
135 flags = 0;
136 w = h = noScale;
137 x = y = centerAlign;
138 }
139 else if (!strcasecmp (style, "root-tiled"))
140 {
141 flags = IM_TILE|IM_ROOT_ALIGN;
142 w = h = noScale;
143 x = y = 0;
144 }
155} 145}
156 146
157bool 147bool
158rxvt_term::bg_set_geometry (const char *geom, bool update) 148rxvt_image::set_geometry (const char *geom, bool update)
159{ 149{
160 bool changed = false; 150 bool changed = false;
161 int geom_flags = 0; 151 int geom_flags = 0;
162 int x = h_align; 152 int x = h_align;
163 int y = v_align; 153 int y = v_align;
164 unsigned int w = h_scale; 154 unsigned int w = h_scale;
165 unsigned int h = v_scale; 155 unsigned int h = v_scale;
166 unsigned long new_flags = 0; 156 uint8_t new_flags = 0;
167 157
168 if (geom == NULL) 158 if (geom == NULL)
169 return false; 159 return false;
170 160
171 if (geom[0]) 161 if (geom[0])
172 { 162 {
173 char **arr = rxvt_strsplit (':', geom); 163 char **arr = rxvt_strsplit (':', geom);
174 164
175 for (int i = 0; arr[i]; i++) 165 for (int i = 0; arr[i]; i++)
176 { 166 {
177 if (!strcasecmp (arr[i], "style=tiled")) 167 if (!strncasecmp (arr[i], "style=", 6))
178 { 168 {
179 new_flags = BG_TILE; 169 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; 170 geom_flags = WidthValue|HeightValue|XValue|YValue;
183 } 171 }
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")) 172 else if (!strcasecmp (arr[i], "op=tile"))
211 new_flags |= BG_TILE; 173 new_flags |= IM_TILE;
212 else if (!strcasecmp (arr[i], "op=keep-aspect")) 174 else if (!strcasecmp (arr[i], "op=keep-aspect"))
213 new_flags |= BG_KEEP_ASPECT; 175 new_flags |= IM_KEEP_ASPECT;
214 else if (!strcasecmp (arr[i], "op=root-align")) 176 else if (!strcasecmp (arr[i], "op=root-align"))
215 new_flags |= BG_ROOT_ALIGN; 177 new_flags |= IM_ROOT_ALIGN;
216 178
217 // deprecated 179 // deprecated
218 else if (!strcasecmp (arr[i], "tile")) 180 else if (!strcasecmp (arr[i], "tile"))
219 { 181 {
220 new_flags |= BG_TILE; 182 new_flags |= IM_TILE;
221 w = h = noScale; 183 w = h = noScale;
222 geom_flags |= WidthValue|HeightValue; 184 geom_flags |= WidthValue|HeightValue;
223 } 185 }
224 else if (!strcasecmp (arr[i], "propscale")) 186 else if (!strcasecmp (arr[i], "propscale"))
225 { 187 {
226 new_flags |= BG_KEEP_ASPECT; 188 new_flags |= IM_KEEP_ASPECT;
227 w = h = windowScale; 189 w = h = windowScale;
228 geom_flags |= WidthValue|HeightValue; 190 geom_flags |= WidthValue|HeightValue;
229 } 191 }
230 else if (!strcasecmp (arr[i], "hscale")) 192 else if (!strcasecmp (arr[i], "hscale"))
231 { 193 {
232 new_flags |= BG_TILE; 194 new_flags |= IM_TILE;
233 w = windowScale; 195 w = windowScale;
234 h = noScale; 196 h = noScale;
235 geom_flags |= WidthValue|HeightValue; 197 geom_flags |= WidthValue|HeightValue;
236 } 198 }
237 else if (!strcasecmp (arr[i], "vscale")) 199 else if (!strcasecmp (arr[i], "vscale"))
238 { 200 {
239 new_flags |= BG_TILE; 201 new_flags |= IM_TILE;
240 h = windowScale; 202 h = windowScale;
241 w = noScale; 203 w = noScale;
242 geom_flags |= WidthValue|HeightValue; 204 geom_flags |= WidthValue|HeightValue;
243 } 205 }
244 else if (!strcasecmp (arr[i], "scale")) 206 else if (!strcasecmp (arr[i], "scale"))
… …
252 x = y = centerAlign; 214 x = y = centerAlign;
253 geom_flags |= WidthValue|HeightValue|XValue|YValue; 215 geom_flags |= WidthValue|HeightValue|XValue|YValue;
254 } 216 }
255 else if (!strcasecmp (arr[i], "root")) 217 else if (!strcasecmp (arr[i], "root"))
256 { 218 {
257 new_flags |= BG_TILE|BG_ROOT_ALIGN; 219 new_flags |= IM_TILE|IM_ROOT_ALIGN;
258 w = h = noScale; 220 w = h = noScale;
259 geom_flags |= WidthValue|HeightValue; 221 geom_flags |= WidthValue|HeightValue;
260 } 222 }
261 223
262 else 224 else
… …
264 } /* done parsing ops */ 226 } /* done parsing ops */
265 227
266 rxvt_free_strsplit (arr); 228 rxvt_free_strsplit (arr);
267 } 229 }
268 230
269 new_flags |= bg_flags & ~BG_GEOMETRY_FLAGS; 231 new_flags |= flags & ~IM_GEOMETRY_FLAGS;
270 232
271 if (!update) 233 if (!update)
272 { 234 {
273 if (!(geom_flags & XValue)) 235 if (!(geom_flags & XValue))
274 x = y = defaultAlign; 236 x = y = defaultAlign;
… …
281 h = w; 243 h = w;
282 else if (!(geom_flags & WidthValue)) 244 else if (!(geom_flags & WidthValue))
283 w = h; 245 w = h;
284 } 246 }
285 247
286 min_it (w, 1000);
287 min_it (h, 1000);
288 clamp_it (x, -100, 200); 248 clamp_it (x, -100, 200);
289 clamp_it (y, -100, 200); 249 clamp_it (y, -100, 200);
290 250
291 if (bg_flags != new_flags 251 if (flags != new_flags
292 || h_scale != w 252 || h_scale != w
293 || v_scale != h 253 || v_scale != h
294 || h_align != x 254 || h_align != x
295 || v_align != y) 255 || v_align != y)
296 { 256 {
297 bg_flags = new_flags; 257 flags = new_flags;
298 h_scale = w; 258 h_scale = w;
299 v_scale = h; 259 v_scale = h;
300 h_align = x; 260 h_align = x;
301 v_align = y; 261 v_align = y;
302 changed = true; 262 changed = true;
303 } 263 }
304 264
265 if (is_size_sensitive ())
266 flags |= IM_IS_SIZE_SENSITIVE;
267 else
268 flags &= ~IM_IS_SIZE_SENSITIVE;
269
305 return changed; 270 return changed;
306} 271}
307 272
308void 273void
309rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y) 274rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
310{ 275{
276 int image_width = image.img->w;
277 int image_height = image.img->h;
311 int target_width = szHint.width; 278 int target_width = szHint.width;
312 int target_height = szHint.height; 279 int target_height = szHint.height;
280 int h_scale = min (image.h_scale, 32767 * 100 / target_width);
281 int v_scale = min (image.v_scale, 32767 * 100 / target_height);
313 282
314 w = h_scale * target_width / 100; 283 w = h_scale * target_width / 100;
315 h = v_scale * target_height / 100; 284 h = v_scale * target_height / 100;
316 285
317 if (bg_flags & BG_KEEP_ASPECT) 286 if (image.flags & IM_KEEP_ASPECT)
318 { 287 {
319 float scale = (float)w / image_width; 288 float scale = (float)w / image_width;
320 min_it (scale, (float)h / image_height); 289 min_it (scale, (float)h / image_height);
321 w = image_width * scale + 0.5; 290 w = image_width * scale + 0.5;
322 h = image_height * scale + 0.5; 291 h = image_height * scale + 0.5;
323 } 292 }
324 293
325 if (!w) w = image_width; 294 if (!w) w = image_width;
326 if (!h) h = image_height; 295 if (!h) h = image_height;
327 296
328 if (bg_flags & BG_ROOT_ALIGN) 297 if (image.flags & IM_ROOT_ALIGN)
329 { 298 {
330 x = -target_x; 299 x = -target_x;
331 y = -target_y; 300 y = -target_y;
332 } 301 }
333 else 302 else
334 { 303 {
335 x = make_align_position (h_align, target_width, w); 304 x = make_align_position (image.h_align, target_width, w);
336 y = make_align_position (v_align, target_height, h); 305 y = make_align_position (image.v_align, target_height, h);
337 }
338
339 bg_flags &= ~BG_IS_SIZE_SENSITIVE;
340 if (!(bg_flags & BG_TILE)
341 || h_scale || v_scale
342 || (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
343 || w > target_width || h > target_height)
344 bg_flags |= BG_IS_SIZE_SENSITIVE;
345}
346
347# ifdef HAVE_PIXBUF
348bool
349rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
350 int src_x, int src_y, int dst_x, int dst_y,
351 unsigned int width, unsigned int height)
352{
353 XImage *ximage;
354 char *data, *line;
355 int bytes_per_pixel;
356 int width_r, width_g, width_b;
357 int sh_r, sh_g, sh_b;
358 int rowstride;
359 int channels;
360 unsigned char *row;
361
362 if (visual->c_class != TrueColor)
363 return false;
364
365 if (depth == 24 || depth == 32)
366 bytes_per_pixel = 4;
367 else if (depth == 15 || depth == 16)
368 bytes_per_pixel = 2;
369 else
370 return false;
371
372 width_r = ecb_popcount32 (visual->red_mask);
373 width_g = ecb_popcount32 (visual->green_mask);
374 width_b = ecb_popcount32 (visual->blue_mask);
375
376 if (width_r > 8 || width_g > 8 || width_b > 8)
377 return false;
378
379 sh_r = ecb_ctz32 (visual->red_mask);
380 sh_g = ecb_ctz32 (visual->green_mask);
381 sh_b = ecb_ctz32 (visual->blue_mask);
382
383 if (width > INT_MAX / height / bytes_per_pixel)
384 return false;
385
386 data = (char *)malloc (width * height * bytes_per_pixel);
387 if (!data)
388 return false;
389
390 ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
391 width, height, bytes_per_pixel * 8, 0);
392 if (!ximage)
393 { 306 }
394 free (data);
395 return false;
396 }
397
398 ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
399
400 rowstride = gdk_pixbuf_get_rowstride (pixbuf);
401 channels = gdk_pixbuf_get_n_channels (pixbuf);
402 row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
403 line = data;
404
405 for (int y = 0; y < height; y++)
406 {
407 for (int x = 0; x < width; x++)
408 {
409 unsigned char *pixel = row + x * channels;
410 uint32_t value;
411
412 value = ((pixel[0] >> (8 - width_r)) << sh_r)
413 | ((pixel[1] >> (8 - width_g)) << sh_g)
414 | ((pixel[2] >> (8 - width_b)) << sh_b);
415
416 if (bytes_per_pixel == 4)
417 ((uint32_t *)line)[x] = value;
418 else
419 ((uint16_t *)line)[x] = value;
420 }
421
422 row += rowstride;
423 line += ximage->bytes_per_line;
424 }
425
426 XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
427 XDestroyImage (ximage);
428 return true;
429} 307}
430 308
431bool 309bool
432rxvt_term::render_image (unsigned long tr_flags) 310rxvt_term::render_image (rxvt_image &image)
433{ 311{
434 if (!pixbuf)
435 return false;
436
437 if (tr_flags
438 && !(bg_flags & BG_HAS_RENDER))
439 return false;
440
441 GdkPixbuf *result;
442
443 int image_width = gdk_pixbuf_get_width (pixbuf);
444 int image_height = gdk_pixbuf_get_height (pixbuf);
445
446 int target_width = szHint.width; 312 int target_width = szHint.width;
447 int target_height = szHint.height; 313 int target_height = szHint.height;
448 int new_pmap_width = target_width;
449 int new_pmap_height = target_height;
450 314
451 int x = 0; 315 int x = 0;
452 int y = 0; 316 int y = 0;
453 int w = 0; 317 int w = 0;
454 int h = 0; 318 int h = 0;
455 319
456 get_image_geometry (image_width, image_height, w, h, x, y); 320 get_image_geometry (image, w, h, x, y);
457 321
458 if (!(bg_flags & BG_ROOT_ALIGN) 322 if (!(image.flags & IM_ROOT_ALIGN)
459 && (x >= target_width 323 && (x >= target_width
460 || y >= target_height 324 || y >= target_height
461 || x + w <= 0 325 || x + w <= 0
462 || y + h <= 0)) 326 || y + h <= 0))
463 return false; 327 return false;
464 328
465 result = pixbuf; 329 rxvt_img *img = image.img->scale (w, h);
466 330
467 if (w != image_width 331 if (image.flags & IM_TILE)
468 || h != image_height) 332 img->repeat_mode (RepeatNormal);
469 {
470 result = gdk_pixbuf_scale_simple (pixbuf,
471 w, h,
472 GDK_INTERP_BILINEAR);
473 }
474
475 if (!result)
476 return false;
477
478 bool ret = false;
479
480 XGCValues gcv;
481 GC gc;
482 Pixmap root_pmap;
483
484 image_width = gdk_pixbuf_get_width (result);
485 image_height = gdk_pixbuf_get_height (result);
486
487 if (tr_flags)
488 {
489 root_pmap = bg_pixmap;
490 bg_pixmap = None;
491 }
492 else 333 else
493 { 334 img->repeat_mode (RepeatNone);
335 img->sub_rect (-x, -y, target_width, target_height)->replace (img);
336
494 if (bg_flags & BG_TILE) 337 if (bg_flags & BG_IS_VALID)
495 {
496 new_pmap_width = min (image_width, target_width);
497 new_pmap_height = min (image_height, target_height);
498 }
499 } 338 {
500 339 double factor = image.alpha * 1. / 0xffff;
501 if (bg_pixmap == None 340 bg_img->blend (img, factor)->replace (img);
502 || bg_pmap_width != new_pmap_width
503 || bg_pmap_height != new_pmap_height)
504 { 341 }
505 if (bg_pixmap)
506 XFreePixmap (dpy, bg_pixmap);
507 bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
508 bg_pmap_width = new_pmap_width;
509 bg_pmap_height = new_pmap_height;
510 }
511 342
512 gcv.foreground = pix_colors[Color_bg];
513 gc = XCreateGC (dpy, vt, GCForeground, &gcv);
514
515 if (gc)
516 {
517 if (bg_flags & BG_TILE)
518 {
519 Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
520 pixbuf_to_pixmap (result, tile, gc,
521 0, 0,
522 0, 0,
523 image_width, image_height);
524
525 gcv.tile = tile;
526 gcv.fill_style = FillTiled;
527 gcv.ts_x_origin = x;
528 gcv.ts_y_origin = y;
529 XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
530
531 XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
532 XFreePixmap (dpy, tile);
533 }
534 else
535 {
536 int src_x, src_y, dst_x, dst_y;
537 int dst_width, dst_height;
538
539 src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
540 src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
541
542 if (dst_x > 0 || dst_y > 0
543 || dst_x + dst_width < new_pmap_width
544 || dst_y + dst_height < new_pmap_height)
545 XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
546
547 if (dst_x < new_pmap_width && dst_y < new_pmap_height)
548 pixbuf_to_pixmap (result, bg_pixmap, gc,
549 src_x, src_y,
550 dst_x, dst_y,
551 dst_width, dst_height);
552 }
553
554#if XRENDER
555 if (tr_flags)
556 {
557 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); 343 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
344 img->convert_format (format, pix_colors [Color_bg])->replace (img);
558 345
559 Picture src = XRenderCreatePicture (dpy, root_pmap, format, 0, 0); 346 delete bg_img;
347 bg_img = img;
560 348
561 Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
562
563 Picture mask = create_xrender_mask (dpy, vt, False, False);
564
565 XRenderColor mask_c;
566
567 mask_c.alpha = 0x8000;
568 mask_c.red =
569 mask_c.green =
570 mask_c.blue = 0;
571 XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
572
573 XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
574
575 XRenderFreePicture (dpy, src);
576 XRenderFreePicture (dpy, dst);
577 XRenderFreePicture (dpy, mask);
578 }
579#endif
580
581 XFreeGC (dpy, gc);
582
583 ret = true;
584 }
585
586 if (result != pixbuf)
587 g_object_unref (result);
588
589 if (tr_flags)
590 XFreePixmap (dpy, root_pmap);
591
592 return ret; 349 return true;
593} 350}
594# endif /* HAVE_PIXBUF */
595 351
352rxvt_image::rxvt_image ()
353{
354 alpha = 0xffff;
355 flags = 0;
356 h_scale =
357 v_scale = defaultScale;
358 h_align =
359 v_align = defaultAlign;
360
361 img = 0;
362}
363
596bool 364bool
597rxvt_term::bg_set_file (const char *file) 365rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
598{ 366{
599 if (!file || !*file) 367 if (!file || !*file)
600 return false; 368 return false;
601 369
602 bool ret = false;
603 const char *p = strchr (file, ';'); 370 const char *p = strchr (file, ';');
604 371
605 if (p) 372 if (p)
606 { 373 {
607 size_t len = p - file; 374 size_t len = p - file;
… …
609 memcpy (f, file, len); 376 memcpy (f, file, len);
610 f[len] = '\0'; 377 f[len] = '\0';
611 file = f; 378 file = f;
612 } 379 }
613 380
614# ifdef HAVE_PIXBUF 381 bool ret = set_file (s, file);
615 GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL); 382 alpha = 0x8000;
616 if (image)
617 {
618 if (pixbuf)
619 g_object_unref (pixbuf);
620 pixbuf = image;
621 bg_flags |= BG_IS_FROM_FILE;
622 ret = true;
623 }
624# endif
625
626 if (ret) 383 if (ret)
627 {
628 if (p)
629 bg_set_geometry (p + 1); 384 set_geometry (p ? p + 1 : "");
630 else
631 bg_set_default_geometry ();
632 }
633
634 return ret; 385 return ret;
635} 386}
636 387
388bool
389rxvt_image::set_file (rxvt_screen *s, const char *file)
390{
391 delete img;
392 img = rxvt_img::new_from_file (s, file);
393 return img != 0;
394}
395
637# endif /* BG_IMAGE_FROM_FILE */ 396# endif /* BG_IMAGE_FROM_FILE */
638 397
639# ifdef ENABLE_TRANSPARENCY
640bool 398bool
641rxvt_term::bg_set_transparent () 399image_effects::set_blur (const char *geom)
642{
643 if (!(bg_flags & BG_IS_TRANSPARENT))
644 {
645 bg_flags |= BG_IS_TRANSPARENT;
646 return true;
647 }
648
649 return false;
650}
651
652bool
653rxvt_term::bg_set_blur (const char *geom)
654{ 400{
655 bool changed = false; 401 bool changed = false;
656 unsigned int hr, vr; 402 unsigned int hr, vr;
657 int junk; 403 int junk;
658 int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr); 404 int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
… …
675 { 421 {
676 changed = true; 422 changed = true;
677 v_blurRadius = vr; 423 v_blurRadius = vr;
678 } 424 }
679 425
680 if (h_blurRadius == 0 || v_blurRadius == 0)
681 bg_flags &= ~BG_NEEDS_BLUR;
682 else
683 bg_flags |= BG_NEEDS_BLUR;
684
685 return changed; 426 return changed;
686} 427}
687 428
688void
689rxvt_term::set_tint_shade_flags ()
690{
691 rgba c;
692 bool has_shade = shade != 100;
693
694 bg_flags &= ~BG_TINT_FLAGS;
695
696 if (bg_flags & BG_TINT_SET)
697 {
698 tint.get (c);
699 if (!has_shade
700 && (c.r <= 0x00ff || c.r >= 0xff00)
701 && (c.g <= 0x00ff || c.g >= 0xff00)
702 && (c.b <= 0x00ff || c.b >= 0xff00))
703 bg_flags |= BG_TINT_BITAND;
704 }
705
706 if (has_shade || (bg_flags & BG_TINT_SET))
707 bg_flags |= BG_NEEDS_TINT;
708}
709
710bool 429bool
711rxvt_term::bg_set_tint (rxvt_color &new_tint) 430image_effects::set_tint (const rxvt_color &new_tint)
712{ 431{
713 if (!(bg_flags & BG_TINT_SET) || tint != new_tint) 432 if (!tint_set || tint != new_tint)
714 { 433 {
715 tint = new_tint; 434 tint = new_tint;
716 bg_flags |= BG_TINT_SET; 435 tint_set = true;
717 set_tint_shade_flags (); 436
718 return true; 437 return true;
719 } 438 }
720 439
721 return false; 440 return false;
722} 441}
723 442
724bool 443bool
725rxvt_term::bg_set_shade (const char *shade_str) 444image_effects::set_shade (const char *shade_str)
726{ 445{
727 int new_shade = atoi (shade_str); 446 int new_shade = atoi (shade_str);
728 447
729 clamp_it (new_shade, -100, 200); 448 clamp_it (new_shade, -100, 200);
730 if (new_shade < 0) 449 if (new_shade < 0)
731 new_shade = 200 - (100 + new_shade); 450 new_shade = 200 - (100 + new_shade);
732 451
733 if (new_shade != shade) 452 if (new_shade != shade)
734 { 453 {
735 shade = new_shade; 454 shade = new_shade;
736 set_tint_shade_flags ();
737 return true; 455 return true;
738 } 456 }
739 457
740 return false; 458 return false;
741} 459}
742 460
743#if XRENDER 461# if ENABLE_TRANSPARENCY
744static void
745get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
746{
747 double sigma = radius / 2.0;
748 double scale = sqrt (2.0 * M_PI) * sigma;
749 double sum = 0.0;
750
751 for (int i = 0; i < width; i++)
752 {
753 double x = i - width / 2;
754 kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
755 sum += kernel[i];
756 }
757
758 params[0] = XDoubleToFixed (width);
759 params[1] = XDoubleToFixed (1);
760
761 for (int i = 0; i < width; i++)
762 params[i+2] = XDoubleToFixed (kernel[i] / sum);
763}
764#endif
765
766bool
767rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height, int depth)
768{
769 bool ret = false;
770#if XRENDER
771 if (!(bg_flags & BG_HAS_RENDER_CONV))
772 return false;
773
774 int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
775 double *kernel = (double *)malloc (size * sizeof (double));
776 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
777
778 XRenderPictureAttributes pa;
779 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
780
781 pa.repeat = RepeatPad;
782 Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
783 Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
784 Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
785 XFreePixmap (dpy, tmp);
786
787 if (kernel && params)
788 {
789 size = h_blurRadius * 2 + 1;
790 get_gaussian_kernel (h_blurRadius, size, kernel, params);
791
792 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
793 XRenderComposite (dpy,
794 PictOpSrc,
795 src,
796 None,
797 dst,
798 0, 0,
799 0, 0,
800 0, 0,
801 width, height);
802
803 ::swap (src, dst);
804
805 size = v_blurRadius * 2 + 1;
806 get_gaussian_kernel (v_blurRadius, size, kernel, params);
807 ::swap (params[0], params[1]);
808
809 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
810 XRenderComposite (dpy,
811 PictOpSrc,
812 src,
813 None,
814 dst,
815 0, 0,
816 0, 0,
817 0, 0,
818 width, height);
819
820 ret = true;
821 }
822
823 free (kernel);
824 free (params);
825 XRenderFreePicture (dpy, src);
826 XRenderFreePicture (dpy, dst);
827#endif
828 return ret;
829}
830
831bool
832rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
833{
834 bool ret = false;
835
836 if (bg_flags & BG_TINT_BITAND)
837 {
838 XGCValues gcv;
839 GC gc;
840
841 /* In this case we can tint image server-side getting significant
842 * performance improvements, as we eliminate XImage transfer
843 */
844 gcv.foreground = Pixel (tint);
845 gcv.function = GXand;
846 gcv.fill_style = FillSolid;
847 gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
848 if (gc)
849 {
850 XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
851 ret = true;
852 XFreeGC (dpy, gc);
853 }
854 }
855# if XRENDER
856 else if (bg_flags & BG_HAS_RENDER)
857 {
858 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
859
860 if (bg_flags & BG_TINT_SET)
861 tint.get (c);
862
863 if (shade <= 100)
864 {
865 c.r = c.r * shade / 100;
866 c.g = c.g * shade / 100;
867 c.b = c.b * shade / 100;
868 }
869 else
870 {
871 c.r = c.r * (200 - shade) / 100;
872 c.g = c.g * (200 - shade) / 100;
873 c.b = c.b * (200 - shade) / 100;
874 }
875
876 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
877
878 Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
879
880 Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
881
882 Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
883
884 XRenderColor mask_c;
885
886 mask_c.alpha = 0xffff;
887 mask_c.red =
888 mask_c.green =
889 mask_c.blue = 0;
890 XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
891
892 mask_c.alpha = 0;
893 mask_c.red = 0xffff - c.r;
894 mask_c.green = 0xffff - c.g;
895 mask_c.blue = 0xffff - c.b;
896 XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
897
898 XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
899
900 if (shade > 100)
901 {
902 mask_c.alpha = 0;
903 mask_c.red =
904 mask_c.green =
905 mask_c.blue = 0xffff * (shade - 100) / 100;
906 XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
907
908 XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
909 }
910
911 ret = true;
912
913 XRenderFreePicture (dpy, mask_pic);
914 XRenderFreePicture (dpy, overlay_pic);
915 XRenderFreePicture (dpy, back_pic);
916 }
917# endif
918
919 return ret;
920}
921
922/* 462/*
923 * Builds a pixmap of the same size as the terminal window that contains 463 * Builds a pixmap of the same size as the terminal window that contains
924 * the tiled portion of the root pixmap that is supposed to be covered by 464 * the tiled portion of the root pixmap that is supposed to be covered by
925 * our window. 465 * our window.
926 */ 466 */
927unsigned long 467bool
928rxvt_term::make_transparency_pixmap () 468rxvt_term::render_root_image ()
929{ 469{
930 unsigned long result = 0;
931
932 /* root dimensions may change from call to call - but Display structure should 470 /* root dimensions may change from call to call - but Display structure should
933 * be always up-to-date, so let's use it : 471 * be always up-to-date, so let's use it :
934 */ 472 */
935 int screen = display->screen; 473 int screen = display->screen;
936 int root_depth = DefaultDepth (dpy, screen);
937 int root_width = DisplayWidth (dpy, screen); 474 int root_width = DisplayWidth (dpy, screen);
938 int root_height = DisplayHeight (dpy, screen); 475 int root_height = DisplayHeight (dpy, screen);
939 unsigned int root_pmap_width, root_pmap_height;
940 int window_width = szHint.width; 476 int window_width = szHint.width;
941 int window_height = szHint.height; 477 int window_height = szHint.height;
942 int sx, sy; 478 int sx, sy;
943 XGCValues gcv;
944 GC gc;
945 479
946 sx = target_x; 480 sx = target_x;
947 sy = target_y; 481 sy = target_y;
482
483 if (!root_img)
484 return false;
948 485
949 /* check if we are outside of the visible part of the virtual screen : */ 486 /* check if we are outside of the visible part of the virtual screen : */
950 if (sx + window_width <= 0 || sy + window_height <= 0 487 if (sx + window_width <= 0 || sy + window_height <= 0
951 || sx >= root_width || sy >= root_height) 488 || sx >= root_width || sy >= root_height)
952 return 0; 489 return 0;
953 490
954 // validate root pixmap and get its size 491 while (sx < 0) sx += root_img->w;
955 if (root_pixmap != None) 492 while (sy < 0) sy += root_img->h;
956 {
957 Window wdummy;
958 int idummy;
959 unsigned int udummy;
960 493
961 allowedxerror = -1; 494 rxvt_img *img = root_img->sub_rect (sx, sy, window_width, window_height);
962 495
963 if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy)) 496 if (root_effects.need_blur ())
964 root_pixmap = None; 497 img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
965 498
966 allowedxerror = 0; 499 if (root_effects.need_tint ())
967 } 500 tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
968 501
969 Pixmap recoded_root_pmap = root_pixmap;
970
971 if (root_pixmap != None && root_depth != depth)
972 {
973#if XRENDER
974 if (bg_flags & BG_HAS_RENDER)
975 {
976 recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
977
978 XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
979 Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
980
981 XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual); 502 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
982 Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0); 503 img->convert_format (format, pix_colors [Color_bg])->replace (img);
983 504
984 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height); 505 delete bg_img;
506 bg_img = img;
985 507
986 XRenderFreePicture (dpy, src);
987 XRenderFreePicture (dpy, dst);
988 }
989 else
990#endif
991 recoded_root_pmap = None;
992 }
993
994 if (recoded_root_pmap == None)
995 return 0;
996
997 if (bg_pixmap == None
998 || bg_pmap_width != window_width
999 || bg_pmap_height != window_height)
1000 {
1001 if (bg_pixmap)
1002 XFreePixmap (dpy, bg_pixmap);
1003 bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1004 bg_pmap_width = window_width;
1005 bg_pmap_height = window_height;
1006 }
1007
1008 /* straightforward pixmap copy */
1009 while (sx < 0) sx += root_pmap_width;
1010 while (sy < 0) sy += root_pmap_height;
1011
1012 gcv.tile = recoded_root_pmap;
1013 gcv.fill_style = FillTiled;
1014 gcv.ts_x_origin = -sx;
1015 gcv.ts_y_origin = -sy;
1016 gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1017
1018 if (gc)
1019 {
1020 XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1021 result |= BG_IS_VALID | (bg_flags & BG_EFFECTS_FLAGS);
1022
1023 if (!(bg_flags & BG_CLIENT_RENDER))
1024 {
1025 if (bg_flags & BG_NEEDS_BLUR)
1026 {
1027 if (blur_pixmap (bg_pixmap, visual, window_width, window_height, depth))
1028 result &= ~BG_NEEDS_BLUR;
1029 }
1030 if (bg_flags & BG_NEEDS_TINT)
1031 {
1032 if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1033 result &= ~BG_NEEDS_TINT;
1034 }
1035 if (result & BG_NEEDS_TINT)
1036 {
1037 XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1038 if (ximage)
1039 {
1040 /* our own client-side tinting */
1041 tint_ximage (DefaultVisual (dpy, display->screen), ximage);
1042
1043 XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
1044 XDestroyImage (ximage);
1045 }
1046 }
1047 } /* server side rendering completed */
1048
1049 XFreeGC (dpy, gc);
1050 }
1051
1052 if (recoded_root_pmap != root_pixmap)
1053 XFreePixmap (dpy, recoded_root_pmap);
1054
1055 return result; 508 return true;
1056} 509}
1057 510
1058void 511void
1059rxvt_term::bg_set_root_pixmap () 512rxvt_term::bg_set_root_pixmap ()
1060{ 513{
1061 Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]); 514 delete root_img;
1062 if (new_root_pixmap == None) 515 root_img = rxvt_img::new_from_root (this);
1063 new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1064
1065 root_pixmap = new_root_pixmap;
1066} 516}
1067# endif /* ENABLE_TRANSPARENCY */ 517# endif /* ENABLE_TRANSPARENCY */
1068 518
1069bool 519void
1070rxvt_term::bg_render () 520rxvt_term::bg_render ()
1071{ 521{
1072 unsigned long tr_flags = 0; 522 if (bg_flags & BG_INHIBIT_RENDER)
523 return;
1073 524
1074 bg_invalidate (); 525 bg_invalidate ();
1075# ifdef ENABLE_TRANSPARENCY 526# if ENABLE_TRANSPARENCY
1076 if (bg_flags & BG_IS_TRANSPARENT) 527 if (bg_flags & BG_IS_TRANSPARENT)
1077 { 528 {
1078 /* we need to re-generate transparency pixmap in that case ! */ 529 /* we need to re-generate transparency pixmap in that case ! */
1079 tr_flags = make_transparency_pixmap (); 530 if (render_root_image ())
1080 if (tr_flags)
1081 bg_flags |= BG_IS_VALID; 531 bg_flags |= BG_IS_VALID;
1082 } 532 }
1083# endif 533# endif
1084 534
1085# ifdef BG_IMAGE_FROM_FILE 535# if BG_IMAGE_FROM_FILE
1086 if ((bg_flags & BG_IS_FROM_FILE) 536 if (fimage.img)
1087 || (tr_flags & BG_EFFECTS_FLAGS))
1088 { 537 {
1089 if (render_image (tr_flags)) 538 if (render_image (fimage))
1090 bg_flags |= BG_IS_VALID; 539 bg_flags |= BG_IS_VALID;
1091 } 540 }
1092# endif 541# endif
1093 542
1094 if (!(bg_flags & BG_IS_VALID)) 543 if (!(bg_flags & BG_IS_VALID))
1095 { 544 {
1096 if (bg_pixmap != None) 545 delete bg_img;
1097 { 546 bg_img = 0;
1098 XFreePixmap (dpy, bg_pixmap);
1099 bg_pixmap = None;
1100 }
1101 } 547 }
1102 548
1103 scr_recolour (false); 549 scr_recolour (false);
1104 bg_flags |= BG_NEEDS_REFRESH; 550 bg_flags |= BG_NEEDS_REFRESH;
1105 551
1106 bg_valid_since = ev::now (); 552 bg_valid_since = ev::now ();
1107
1108 return true;
1109} 553}
1110 554
1111void 555void
1112rxvt_term::bg_init () 556rxvt_term::bg_init ()
1113{ 557{
1114#ifdef ENABLE_TRANSPARENCY 558#if BG_IMAGE_FROM_FILE
1115 shade = 100; 559 if (rs[Rs_backgroundPixmap])
560 {
561 if (fimage.set_file_geometry (this, rs[Rs_backgroundPixmap])
562 && !bg_window_position_sensitive ())
563 update_background ();
564 }
1116#endif 565#endif
1117
1118 bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV);
1119#if XRENDER
1120 int major, minor;
1121 if (XRenderQueryVersion (dpy, &major, &minor))
1122 bg_flags |= BG_HAS_RENDER;
1123 XFilters *filters = XRenderQueryFilters (dpy, vt);
1124 if (filters)
1125 {
1126 for (int i = 0; i < filters->nfilter; i++)
1127 if (!strcmp (filters->filter[i], FilterConvolution))
1128 bg_flags |= BG_HAS_RENDER_CONV;
1129
1130 XFree (filters);
1131 }
1132#endif
1133}
1134
1135#endif /* HAVE_BG_PIXMAP */
1136
1137#ifdef ENABLE_TRANSPARENCY
1138/* based on code from aterm-0.4.2 */
1139
1140static inline void
1141fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1142{
1143 for (int i = 0; i <= mask >> sh; i++)
1144 {
1145 uint32_t tmp;
1146 tmp = i * high;
1147 tmp += (mask >> sh) * low;
1148 lookup[i] = (tmp / 0xffff) << sh;
1149 }
1150} 566}
1151 567
1152void 568void
1153rxvt_term::tint_ximage (Visual *visual, XImage *ximage) 569rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1154{ 570{
1155 int sh_r, sh_g, sh_b;
1156 uint32_t mask_r, mask_g, mask_b;
1157 uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1158 unsigned short low;
1159 int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1160
1161 if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1162
1163 /* for convenience */
1164 mask_r = visual->red_mask;
1165 mask_g = visual->green_mask;
1166 mask_b = visual->blue_mask;
1167
1168 /* boring lookup table pre-initialization */
1169 switch (ximage->depth)
1170 {
1171 case 15:
1172 if ((mask_r != 0x7c00) ||
1173 (mask_g != 0x03e0) ||
1174 (mask_b != 0x001f))
1175 return;
1176 lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+32+32));
1177 lookup_r = lookup;
1178 lookup_g = lookup+32;
1179 lookup_b = lookup+32+32;
1180 sh_r = 10;
1181 sh_g = 5;
1182 sh_b = 0;
1183 break;
1184 case 16:
1185 if ((mask_r != 0xf800) ||
1186 (mask_g != 0x07e0) ||
1187 (mask_b != 0x001f))
1188 return;
1189 lookup = (uint32_t *) malloc (sizeof (uint32_t)*(32+64+32));
1190 lookup_r = lookup;
1191 lookup_g = lookup+32;
1192 lookup_b = lookup+32+64;
1193 sh_r = 11;
1194 sh_g = 5;
1195 sh_b = 0;
1196 break;
1197 case 24:
1198 if ((mask_r != 0xff0000) ||
1199 (mask_g != 0x00ff00) ||
1200 (mask_b != 0x0000ff))
1201 return;
1202 lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1203 lookup_r = lookup;
1204 lookup_g = lookup+256;
1205 lookup_b = lookup+256+256;
1206 sh_r = 16;
1207 sh_g = 8;
1208 sh_b = 0;
1209 break;
1210 case 32:
1211 if ((mask_r != 0xff0000) ||
1212 (mask_g != 0x00ff00) ||
1213 (mask_b != 0x0000ff))
1214 return;
1215 lookup = (uint32_t *) malloc (sizeof (uint32_t)*(256+256+256));
1216 lookup_r = lookup;
1217 lookup_g = lookup+256;
1218 lookup_b = lookup+256+256;
1219 sh_r = 16;
1220 sh_g = 8;
1221 sh_b = 0;
1222 break;
1223 default:
1224 return; /* we do not support this color depth */
1225 }
1226
1227 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC); 571 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1228 572
1229 if (bg_flags & BG_TINT_SET) 573 if (tint_set)
1230 tint.get (c); 574 tint.get (c);
1231 575
1232 /* prepare limits for color transformation (each channel is handled separately) */
1233 if (shade > 100) 576 if (shade > 100)
1234 { 577 {
1235 c.r = c.r * (200 - shade) / 100; 578 c.r = c.r * (200 - shade) / 100;
1236 c.g = c.g * (200 - shade) / 100; 579 c.g = c.g * (200 - shade) / 100;
1237 c.b = c.b * (200 - shade) / 100; 580 c.b = c.b * (200 - shade) / 100;
1238
1239 low = 0xffff * (shade - 100) / 100;
1240 } 581 }
1241 else 582 else
1242 { 583 {
1243 c.r = c.r * shade / 100; 584 c.r = c.r * shade / 100;
1244 c.g = c.g * shade / 100; 585 c.g = c.g * shade / 100;
1245 c.b = c.b * shade / 100; 586 c.b = c.b * shade / 100;
1246
1247 low = 0;
1248 }
1249
1250 /* fill our lookup tables */
1251 fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1252 fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1253 fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1254
1255 /* apply table to input image (replacing colors by newly calculated ones) */
1256 if (ximage->bits_per_pixel == 32
1257 && (ximage->depth == 24 || ximage->depth == 32)
1258 && ximage->byte_order == host_byte_order)
1259 { 587 }
1260 uint32_t *p1, *pf, *p, *pl;
1261 p1 = (uint32_t *) ximage->data;
1262 pf = (uint32_t *) (ximage->data + ximage->height * ximage->bytes_per_line);
1263 588
1264 while (p1 < pf) 589 img->contrast (c.r, c.g, c.b, c.a);
1265 { 590
1266 p = p1; 591 if (shade > 100)
1267 pl = p1 + ximage->width;
1268 for (; p < pl; p++)
1269 {
1270 *p = lookup_r[(*p & 0xff0000) >> 16] |
1271 lookup_g[(*p & 0x00ff00) >> 8] |
1272 lookup_b[(*p & 0x0000ff)] |
1273 (*p & 0xff000000);
1274 }
1275 p1 = (uint32_t *) ((char *) p1 + ximage->bytes_per_line);
1276 }
1277 } 592 {
1278 else 593 c.a = 0xffff;
594 c.r =
595 c.g =
596 c.b = 0xffff * (shade - 100) / 100;
597 img->brightness (c.r, c.g, c.b, c.a);
1279 { 598 }
1280 for (int y = 0; y < ximage->height; y++)
1281 for (int x = 0; x < ximage->width; x++)
1282 {
1283 unsigned long pixel = XGetPixel (ximage, x, y);
1284 pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1285 lookup_g[(pixel & mask_g) >> sh_g] |
1286 lookup_b[(pixel & mask_b) >> sh_b];
1287 XPutPixel (ximage, x, y, pixel);
1288 }
1289 }
1290
1291 free (lookup);
1292} 599}
1293#endif /* ENABLE_TRANSPARENCY */ 600
601#endif /* HAVE_BG_PIXMAP */

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