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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.209 by sf-exg, Fri May 11 12:21:22 2012 UTC vs.
Revision 1.256 by sf-exg, Mon Dec 31 12:05:46 2012 UTC

1/*----------------------------------------------------------------------* 1/*----------------------------------------------------------------------*
2 * File: background.C - former xpm.C 2 * File: background.C
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>
… …
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 BG_IMAGE_FROM_ROOT
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 ();
70} 40# endif
71
72bool
73rxvt_term::bg_set_position (int x, int y)
74{
75
76 if (target_x != x
77 || target_y != y)
78 {
79 target_x = x;
80 target_y = y;
81 return true;
82 }
83 return false;
84} 41}
85 42
86bool 43bool
87rxvt_term::bg_window_size_sensitive () 44rxvt_term::bg_window_size_sensitive ()
88{ 45{
89# ifdef ENABLE_TRANSPARENCY 46# if BG_IMAGE_FROM_ROOT
90 if (bg_flags & BG_IS_TRANSPARENT) 47 if (root_img)
91 return true; 48 return true;
92# endif 49# endif
93 50
94# ifdef BG_IMAGE_FROM_FILE 51# if BG_IMAGE_FROM_FILE
95 if (bg_flags & BG_IS_FROM_FILE) 52 if (fimage.img)
96 { 53 {
97 if (bg_flags & BG_IS_SIZE_SENSITIVE) 54 if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
55 || fimage.img->w > szHint.width
56 || fimage.img->h > szHint.height)
98 return true; 57 return true;
99 } 58 }
100# endif 59# endif
101 60
102 return false; 61 return false;
103} 62}
104 63
105bool 64bool
106rxvt_term::bg_window_position_sensitive () 65rxvt_term::bg_window_position_sensitive ()
107{ 66{
108# ifdef ENABLE_TRANSPARENCY 67# if BG_IMAGE_FROM_ROOT
109 if (bg_flags & BG_IS_TRANSPARENT) 68 if (root_img)
110 return true; 69 return true;
111# endif 70# endif
112 71
113# ifdef BG_IMAGE_FROM_FILE 72# if BG_IMAGE_FROM_FILE
114 if (bg_flags & BG_IS_FROM_FILE) 73 if (fimage.img)
115 { 74 {
116 if (bg_flags & BG_ROOT_ALIGN) 75 if (fimage.flags & IM_ROOT_ALIGN)
117 return true; 76 return true;
118 } 77 }
119# endif 78# endif
120 79
121 return false; 80 return false;
122} 81}
123 82
124# ifdef BG_IMAGE_FROM_FILE 83# if BG_IMAGE_FROM_FILE
125static inline int 84static inline int
126make_align_position (int align, int window_size, int image_size) 85make_align_position (int align, int window_size, int image_size)
127{ 86{
128 if (align >= 0 && align <= 100) 87 if (align >= 0 && align <= 100)
129 return lerp (0, window_size - image_size, align); 88 return lerp (0, window_size - image_size, align);
… …
131 return lerp (window_size - image_size, window_size, align - 100); 90 return lerp (window_size - image_size, window_size, align - 100);
132 else 91 else
133 return lerp (-image_size, 0, align + 100); 92 return lerp (-image_size, 0, align + 100);
134} 93}
135 94
136static inline int 95static void
137make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size) 96parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags)
138{ 97{
139 int src_pos = 0; 98 if (!strcasecmp (style, "tiled"))
140 dst_pos = pos;
141 dst_size = size;
142 if (pos < 0)
143 {
144 src_pos = -pos;
145 dst_pos = 0;
146 dst_size += pos;
147 } 99 {
148 100 flags = IM_TILE;
149 min_it (dst_size, target_size - dst_pos); 101 w = h = noScale;
150 return src_pos; 102 x = y = 0;
103 }
104 else if (!strcasecmp (style, "aspect-stretched"))
105 {
106 flags = IM_KEEP_ASPECT;
107 w = h = windowScale;
108 x = y = centerAlign;
109 }
110 else if (!strcasecmp (style, "stretched"))
111 {
112 flags = 0;
113 w = h = windowScale;
114 x = y = centerAlign;
115 }
116 else if (!strcasecmp (style, "centered"))
117 {
118 flags = 0;
119 w = h = noScale;
120 x = y = centerAlign;
121 }
122 else if (!strcasecmp (style, "root-tiled"))
123 {
124 flags = IM_TILE|IM_ROOT_ALIGN;
125 w = h = noScale;
126 x = y = 0;
127 }
151} 128}
152 129
153bool 130bool
154rxvt_term::bg_set_geometry (const char *geom, bool update) 131rxvt_image::set_geometry (const char *geom, bool update)
155{ 132{
156 bool changed = false; 133 bool changed = false;
157 int geom_flags = 0; 134 int geom_flags = 0;
158 int x = h_align; 135 int x = h_align;
159 int y = v_align; 136 int y = v_align;
160 unsigned int w = h_scale; 137 unsigned int w = h_scale;
161 unsigned int h = v_scale; 138 unsigned int h = v_scale;
162 unsigned long new_flags = 0; 139 uint8_t new_flags = 0;
163 140
164 if (geom == NULL) 141 if (geom == NULL)
165 return false; 142 return false;
166 143
167 if (geom[0]) 144 if (geom[0])
168 { 145 {
169 char **arr = rxvt_strsplit (':', geom); 146 char **arr = rxvt_strsplit (':', geom);
170 147
171 for (int i = 0; arr[i]; i++) 148 for (int i = 0; arr[i]; i++)
172 { 149 {
173 if (!strcasecmp (arr[i], "style=tiled")) 150 if (!strncasecmp (arr[i], "style=", 6))
174 { 151 {
175 new_flags = BG_TILE; 152 parse_style (arr[i] + 6, x, y, w, h, new_flags);
176 w = h = noScale;
177 x = y = 0;
178 geom_flags = WidthValue|HeightValue|XValue|YValue; 153 geom_flags = WidthValue|HeightValue|XValue|YValue;
179 } 154 }
180 else if (!strcasecmp (arr[i], "style=aspect-stretched"))
181 {
182 new_flags = BG_KEEP_ASPECT;
183 w = h = windowScale;
184 x = y = centerAlign;
185 geom_flags = WidthValue|HeightValue|XValue|YValue;
186 }
187 else if (!strcasecmp (arr[i], "style=stretched"))
188 {
189 new_flags = 0;
190 w = h = windowScale;
191 geom_flags = WidthValue|HeightValue;
192 }
193 else if (!strcasecmp (arr[i], "style=centered"))
194 {
195 new_flags = 0;
196 w = h = noScale;
197 x = y = centerAlign;
198 geom_flags = WidthValue|HeightValue|XValue|YValue;
199 }
200 else if (!strcasecmp (arr[i], "style=root-tiled"))
201 {
202 new_flags = BG_TILE|BG_ROOT_ALIGN;
203 w = h = noScale;
204 geom_flags = WidthValue|HeightValue;
205 }
206 else if (!strcasecmp (arr[i], "op=tile")) 155 else if (!strcasecmp (arr[i], "op=tile"))
207 new_flags |= BG_TILE; 156 new_flags |= IM_TILE;
208 else if (!strcasecmp (arr[i], "op=keep-aspect")) 157 else if (!strcasecmp (arr[i], "op=keep-aspect"))
209 new_flags |= BG_KEEP_ASPECT; 158 new_flags |= IM_KEEP_ASPECT;
210 else if (!strcasecmp (arr[i], "op=root-align")) 159 else if (!strcasecmp (arr[i], "op=root-align"))
211 new_flags |= BG_ROOT_ALIGN; 160 new_flags |= IM_ROOT_ALIGN;
212 161
213 // deprecated 162 // deprecated
214 else if (!strcasecmp (arr[i], "tile")) 163 else if (!strcasecmp (arr[i], "tile"))
215 { 164 {
216 new_flags |= BG_TILE; 165 new_flags |= IM_TILE;
217 w = h = noScale; 166 w = h = noScale;
218 geom_flags |= WidthValue|HeightValue; 167 geom_flags |= WidthValue|HeightValue;
219 } 168 }
220 else if (!strcasecmp (arr[i], "propscale")) 169 else if (!strcasecmp (arr[i], "propscale"))
221 { 170 {
222 new_flags |= BG_KEEP_ASPECT; 171 new_flags |= IM_KEEP_ASPECT;
223 w = h = windowScale; 172 w = h = windowScale;
224 geom_flags |= WidthValue|HeightValue; 173 geom_flags |= WidthValue|HeightValue;
225 } 174 }
226 else if (!strcasecmp (arr[i], "hscale")) 175 else if (!strcasecmp (arr[i], "hscale"))
227 { 176 {
228 new_flags |= BG_TILE; 177 new_flags |= IM_TILE;
229 w = windowScale; 178 w = windowScale;
230 h = noScale; 179 h = noScale;
231 geom_flags |= WidthValue|HeightValue; 180 geom_flags |= WidthValue|HeightValue;
232 } 181 }
233 else if (!strcasecmp (arr[i], "vscale")) 182 else if (!strcasecmp (arr[i], "vscale"))
234 { 183 {
235 new_flags |= BG_TILE; 184 new_flags |= IM_TILE;
236 h = windowScale; 185 h = windowScale;
237 w = noScale; 186 w = noScale;
238 geom_flags |= WidthValue|HeightValue; 187 geom_flags |= WidthValue|HeightValue;
239 } 188 }
240 else if (!strcasecmp (arr[i], "scale")) 189 else if (!strcasecmp (arr[i], "scale"))
… …
248 x = y = centerAlign; 197 x = y = centerAlign;
249 geom_flags |= WidthValue|HeightValue|XValue|YValue; 198 geom_flags |= WidthValue|HeightValue|XValue|YValue;
250 } 199 }
251 else if (!strcasecmp (arr[i], "root")) 200 else if (!strcasecmp (arr[i], "root"))
252 { 201 {
253 new_flags |= BG_TILE|BG_ROOT_ALIGN; 202 new_flags |= IM_TILE|IM_ROOT_ALIGN;
254 w = h = noScale; 203 w = h = noScale;
255 geom_flags |= WidthValue|HeightValue; 204 geom_flags |= WidthValue|HeightValue;
256 } 205 }
257 206
258 else 207 else
… …
260 } /* done parsing ops */ 209 } /* done parsing ops */
261 210
262 rxvt_free_strsplit (arr); 211 rxvt_free_strsplit (arr);
263 } 212 }
264 213
265 new_flags |= bg_flags & ~BG_GEOMETRY_FLAGS; 214 new_flags |= flags & ~IM_GEOMETRY_FLAGS;
266 215
267 if (!update) 216 if (!update)
268 { 217 {
269 if (!(geom_flags & XValue)) 218 if (!(geom_flags & XValue))
270 x = y = defaultAlign; 219 x = y = defaultAlign;
… …
277 h = w; 226 h = w;
278 else if (!(geom_flags & WidthValue)) 227 else if (!(geom_flags & WidthValue))
279 w = h; 228 w = h;
280 } 229 }
281 230
282 min_it (w, 1000);
283 min_it (h, 1000);
284 clamp_it (x, -100, 200); 231 clamp_it (x, -100, 200);
285 clamp_it (y, -100, 200); 232 clamp_it (y, -100, 200);
286 233
287 if (bg_flags != new_flags 234 if (flags != new_flags
288 || h_scale != w 235 || h_scale != w
289 || v_scale != h 236 || v_scale != h
290 || h_align != x 237 || h_align != x
291 || v_align != y) 238 || v_align != y)
292 { 239 {
293 bg_flags = new_flags; 240 flags = new_flags;
294 h_scale = w; 241 h_scale = w;
295 v_scale = h; 242 v_scale = h;
296 h_align = x; 243 h_align = x;
297 v_align = y; 244 v_align = y;
298 changed = true; 245 changed = true;
299 } 246 }
300 247
248 if (is_size_sensitive ())
249 flags |= IM_IS_SIZE_SENSITIVE;
250 else
251 flags &= ~IM_IS_SIZE_SENSITIVE;
252
301 return changed; 253 return changed;
302} 254}
303 255
304void 256void
305rxvt_term::get_image_geometry (int image_width, int image_height, int &w, int &h, int &x, int &y) 257rxvt_term::render_image (rxvt_image &image)
306{ 258{
259 int image_width = image.img->w;
260 int image_height = image.img->h;
307 int target_width = szHint.width; 261 int parent_width = szHint.width;
308 int target_height = szHint.height; 262 int parent_height = szHint.height;
263 int h_scale = min (image.h_scale, 32767 * 100 / parent_width);
264 int v_scale = min (image.v_scale, 32767 * 100 / parent_height);
309 265
266 int w;
267 int h;
268 int x;
269 int y;
270
310 w = h_scale * target_width / 100; 271 w = h_scale * parent_width / 100;
311 h = v_scale * target_height / 100; 272 h = v_scale * parent_height / 100;
312 273
313 if (bg_flags & BG_KEEP_ASPECT) 274 if (image.flags & IM_KEEP_ASPECT)
314 { 275 {
315 float scale = (float)w / image_width; 276 float scale = (float)w / image_width;
316 min_it (scale, (float)h / image_height); 277 min_it (scale, (float)h / image_height);
317 w = image_width * scale + 0.5; 278 w = image_width * scale + 0.5;
318 h = image_height * scale + 0.5; 279 h = image_height * scale + 0.5;
319 } 280 }
320 281
321 if (!w) w = image_width; 282 if (!w) w = image_width;
322 if (!h) h = image_height; 283 if (!h) h = image_height;
323 284
324 if (bg_flags & BG_ROOT_ALIGN) 285 if (image.flags & IM_ROOT_ALIGN)
325 { 286 {
326 x = -target_x; 287 x = -parent_x;
327 y = -target_y; 288 y = -parent_y;
328 } 289 }
329 else 290 else
330 { 291 {
331 x = make_align_position (h_align, target_width, w); 292 x = make_align_position (image.h_align, parent_width, w);
332 y = make_align_position (v_align, target_height, h); 293 y = make_align_position (image.v_align, parent_height, h);
333 }
334
335 if (!(bg_flags & BG_TILE)
336 || h_scale || v_scale
337 || (!(bg_flags & BG_ROOT_ALIGN) && (h_align || v_align))
338 || image_width > target_width || image_height > target_height)
339 bg_flags |= BG_IS_SIZE_SENSITIVE;
340 else
341 bg_flags &= ~BG_IS_SIZE_SENSITIVE;
342}
343
344# ifdef HAVE_PIXBUF
345bool
346rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc,
347 int src_x, int src_y, int dst_x, int dst_y,
348 unsigned int width, unsigned int height)
349{
350 XImage *ximage;
351 char *data, *line;
352 int bytes_per_pixel;
353 int width_r, width_g, width_b, width_a;
354 int sh_r, sh_g, sh_b, sh_a;
355 uint32_t alpha_mask;
356 int rowstride;
357 int channels;
358 unsigned char *row;
359
360 if (visual->c_class != TrueColor)
361 return false;
362
363#if XRENDER
364 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
365 if (format)
366 alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;
367 else
368#endif
369 alpha_mask = 0;
370
371 if (depth == 24 || depth == 32)
372 bytes_per_pixel = 4;
373 else if (depth == 15 || depth == 16)
374 bytes_per_pixel = 2;
375 else
376 return false;
377
378 width_r = ecb_popcount32 (visual->red_mask);
379 width_g = ecb_popcount32 (visual->green_mask);
380 width_b = ecb_popcount32 (visual->blue_mask);
381 width_a = ecb_popcount32 (alpha_mask);
382
383 if (width_r > 8 || width_g > 8 || width_b > 8 || width_a > 8)
384 return false;
385
386 sh_r = ecb_ctz32 (visual->red_mask);
387 sh_g = ecb_ctz32 (visual->green_mask);
388 sh_b = ecb_ctz32 (visual->blue_mask);
389 sh_a = ecb_ctz32 (alpha_mask);
390
391 if (width > INT_MAX / height / bytes_per_pixel)
392 return false;
393
394 data = (char *)malloc (width * height * bytes_per_pixel);
395 if (!data)
396 return false;
397
398 ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, data,
399 width, height, bytes_per_pixel * 8, 0);
400 if (!ximage)
401 { 294 }
402 free (data);
403 return false;
404 }
405 295
406 ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
407
408 rowstride = gdk_pixbuf_get_rowstride (pixbuf);
409 channels = gdk_pixbuf_get_n_channels (pixbuf);
410 row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
411 line = data;
412
413 rgba c (0, 0, 0);
414
415 if (channels == 4 && alpha_mask == 0)
416 {
417 pix_colors[Color_bg].get (c);
418 c.r >>= 8;
419 c.g >>= 8;
420 c.b >>= 8;
421 }
422
423 for (int y = 0; y < height; y++)
424 {
425 for (int x = 0; x < width; x++)
426 {
427 unsigned char *pixel = row + x * channels;
428 uint32_t value;
429 unsigned char r, g, b, a;
430
431 if (channels == 4)
432 {
433 a = pixel[3];
434 r = (pixel[0] * a + c.r * (0xff - a)) / 0xff;
435 g = (pixel[1] * a + c.g * (0xff - a)) / 0xff;
436 b = (pixel[2] * a + c.b * (0xff - a)) / 0xff;
437 }
438 else
439 {
440 a = 0xff;
441 r = pixel[0];
442 g = pixel[1];
443 b = pixel[2];
444 }
445
446 value = ((r >> (8 - width_r)) << sh_r)
447 | ((g >> (8 - width_g)) << sh_g)
448 | ((b >> (8 - width_b)) << sh_b)
449 | ((a >> (8 - width_a)) << sh_a);
450
451 if (bytes_per_pixel == 4)
452 ((uint32_t *)line)[x] = value;
453 else
454 ((uint16_t *)line)[x] = value;
455 }
456
457 row += rowstride;
458 line += ximage->bytes_per_line;
459 }
460
461 XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
462 XDestroyImage (ximage);
463 return true;
464}
465
466bool
467rxvt_term::render_image (bool transparent)
468{
469 if (!pixbuf)
470 return false;
471
472 if (transparent
473 && !(bg_flags & BG_HAS_RENDER))
474 return false;
475
476 GdkPixbuf *result;
477
478 int image_width = gdk_pixbuf_get_width (pixbuf);
479 int image_height = gdk_pixbuf_get_height (pixbuf);
480
481 int target_width = szHint.width;
482 int target_height = szHint.height;
483 int new_pmap_width = target_width;
484 int new_pmap_height = target_height;
485
486 int x = 0;
487 int y = 0;
488 int w = 0;
489 int h = 0;
490
491 get_image_geometry (image_width, image_height, w, h, x, y);
492
493 if (!(bg_flags & BG_ROOT_ALIGN) 296 if (!(image.flags & IM_ROOT_ALIGN)
494 && (x >= target_width 297 && (x >= parent_width
495 || y >= target_height 298 || y >= parent_height
496 || x + w <= 0 299 || x + w <= 0
497 || y + h <= 0)) 300 || y + h <= 0))
498 return false; 301 return;
499 302
500 result = pixbuf; 303 rxvt_img *img = image.img->scale (w, h);
501 304
502 if (w != image_width 305 if (image.flags & IM_TILE)
503 || h != image_height) 306 img->repeat_mode (RepeatNormal);
504 {
505 result = gdk_pixbuf_scale_simple (pixbuf,
506 w, h,
507 GDK_INTERP_BILINEAR);
508 }
509
510 if (!result)
511 return false;
512
513 bool ret = false;
514
515 XGCValues gcv;
516 GC gc;
517 Pixmap root_pmap;
518
519 image_width = gdk_pixbuf_get_width (result);
520 image_height = gdk_pixbuf_get_height (result);
521
522 if (transparent)
523 {
524 root_pmap = bg_pixmap;
525 bg_pixmap = None;
526 }
527 else 307 else
528 { 308 img->repeat_mode (RepeatNone);
529 if (bg_flags & BG_TILE) 309 img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
530 {
531 new_pmap_width = min (image_width, target_width);
532 new_pmap_height = min (image_height, target_height);
533 }
534 }
535 310
536 if (bg_pixmap == None 311 if (bg_img)
537 || bg_pmap_width != new_pmap_width 312 img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
538 || bg_pmap_height != new_pmap_height)
539 {
540 if (bg_pixmap)
541 XFreePixmap (dpy, bg_pixmap);
542 bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
543 bg_pmap_width = new_pmap_width;
544 bg_pmap_height = new_pmap_height;
545 }
546 313
547 gcv.foreground = pix_colors[Color_bg];
548 gc = XCreateGC (dpy, vt, GCForeground, &gcv);
549
550 if (gc)
551 {
552 if (bg_flags & BG_TILE)
553 {
554 Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
555 pixbuf_to_pixmap (result, tile, gc,
556 0, 0,
557 0, 0,
558 image_width, image_height);
559
560 gcv.tile = tile;
561 gcv.fill_style = FillTiled;
562 gcv.ts_x_origin = x;
563 gcv.ts_y_origin = y;
564 XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
565
566 XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
567 XFreePixmap (dpy, tile);
568 }
569 else
570 {
571 int src_x, src_y, dst_x, dst_y;
572 int dst_width, dst_height;
573
574 src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
575 src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
576
577 if (dst_x > 0 || dst_y > 0
578 || dst_x + dst_width < new_pmap_width
579 || dst_y + dst_height < new_pmap_height)
580 XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
581
582 if (dst_x < new_pmap_width && dst_y < new_pmap_height)
583 pixbuf_to_pixmap (result, bg_pixmap, gc,
584 src_x, src_y,
585 dst_x, dst_y,
586 dst_width, dst_height);
587 }
588
589#if XRENDER
590 if (transparent)
591 {
592 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); 314 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
315 img->convert_format (format, pix_colors [Color_bg])->replace (img);
593 316
594 Picture src = XRenderCreatePicture (dpy, root_pmap, format, 0, 0); 317 delete bg_img;
595 318 bg_img = img;
596 Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
597
598 Picture mask = create_xrender_mask (dpy, vt, False, False);
599
600 XRenderColor mask_c;
601
602 mask_c.alpha = 0x8000;
603 mask_c.red =
604 mask_c.green =
605 mask_c.blue = 0;
606 XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
607
608 XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
609
610 XRenderFreePicture (dpy, src);
611 XRenderFreePicture (dpy, dst);
612 XRenderFreePicture (dpy, mask);
613 }
614#endif
615
616 XFreeGC (dpy, gc);
617
618 ret = true;
619 }
620
621 if (result != pixbuf)
622 g_object_unref (result);
623
624 if (transparent)
625 XFreePixmap (dpy, root_pmap);
626
627 return ret;
628} 319}
629# endif /* HAVE_PIXBUF */
630 320
631bool 321rxvt_image::rxvt_image ()
632rxvt_term::bg_set_file (const char *file) 322{
323 alpha = 0xffff;
324 flags = 0;
325 h_scale =
326 v_scale = defaultScale;
327 h_align =
328 v_align = defaultAlign;
329
330 img = 0;
331}
332
333void
334rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
633{ 335{
634 if (!file || !*file) 336 if (!file || !*file)
635 return false; 337 return;
636 338
637 bool ret = false;
638 const char *p = strchr (file, ';'); 339 const char *p = strchr (file, ';');
639 340
640 if (p) 341 if (p)
641 { 342 {
642 size_t len = p - file; 343 size_t len = p - file;
… …
644 memcpy (f, file, len); 345 memcpy (f, file, len);
645 f[len] = '\0'; 346 f[len] = '\0';
646 file = f; 347 file = f;
647 } 348 }
648 349
649# ifdef HAVE_PIXBUF 350 set_file (s, file);
650 GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL); 351 alpha = 0x8000;
651 if (image) 352 set_geometry (p ? p + 1 : "");
652 { 353}
653 if (pixbuf)
654 g_object_unref (pixbuf);
655 pixbuf = image;
656 bg_flags |= BG_IS_FROM_FILE;
657 ret = true;
658 }
659# endif
660 354
661 if (ret) 355void
662 { 356rxvt_image::set_file (rxvt_screen *s, const char *file)
663 if (p) 357{
664 bg_set_geometry (p + 1); 358 rxvt_img *img2 = rxvt_img::new_from_file (s, file);
665 else 359 delete img;
666 bg_set_default_geometry (); 360 img = img2;
667 }
668
669 return ret;
670} 361}
671 362
672# endif /* BG_IMAGE_FROM_FILE */ 363# endif /* BG_IMAGE_FROM_FILE */
673 364
674# ifdef ENABLE_TRANSPARENCY
675bool 365bool
676rxvt_term::bg_set_transparent () 366image_effects::set_blur (const char *geom)
677{
678 if (!(bg_flags & BG_IS_TRANSPARENT))
679 {
680 bg_flags |= BG_IS_TRANSPARENT;
681 return true;
682 }
683
684 return false;
685}
686
687bool
688rxvt_term::bg_set_blur (const char *geom)
689{ 367{
690 bool changed = false; 368 bool changed = false;
691 unsigned int hr, vr; 369 unsigned int hr, vr;
692 int junk; 370 int junk;
693 int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr); 371 int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
… …
710 { 388 {
711 changed = true; 389 changed = true;
712 v_blurRadius = vr; 390 v_blurRadius = vr;
713 } 391 }
714 392
715 if (h_blurRadius && v_blurRadius)
716 bg_flags |= BG_NEEDS_BLUR;
717 else
718 bg_flags &= ~BG_NEEDS_BLUR;
719
720 return changed; 393 return changed;
721} 394}
722 395
723void
724rxvt_term::set_tint_shade_flags ()
725{
726 if (shade != 100 || (bg_flags & BG_TINT_SET))
727 bg_flags |= BG_NEEDS_TINT;
728 else
729 bg_flags &= ~BG_NEEDS_TINT;
730}
731
732bool 396bool
733rxvt_term::bg_set_tint (rxvt_color &new_tint) 397image_effects::set_tint (const rxvt_color &new_tint)
734{ 398{
735 if (!(bg_flags & BG_TINT_SET) || tint != new_tint) 399 if (!tint_set || tint != new_tint)
736 { 400 {
737 tint = new_tint; 401 tint = new_tint;
738 bg_flags |= BG_TINT_SET; 402 tint_set = true;
739 403
740 rgba c;
741 tint.get (c);
742 if ((c.r <= 0x00ff || c.r >= 0xff00)
743 && (c.g <= 0x00ff || c.g >= 0xff00)
744 && (c.b <= 0x00ff || c.b >= 0xff00))
745 bg_flags |= BG_TINT_BITAND;
746 else
747 bg_flags &= ~BG_TINT_BITAND;
748
749 set_tint_shade_flags ();
750 return true; 404 return true;
751 } 405 }
752 406
753 return false; 407 return false;
754} 408}
755 409
756bool 410bool
757rxvt_term::bg_set_shade (const char *shade_str) 411image_effects::set_shade (const char *shade_str)
758{ 412{
759 int new_shade = atoi (shade_str); 413 int new_shade = atoi (shade_str);
760 414
761 clamp_it (new_shade, -100, 200); 415 clamp_it (new_shade, -100, 200);
762 if (new_shade < 0) 416 if (new_shade < 0)
763 new_shade = 200 - (100 + new_shade); 417 new_shade = 200 - (100 + new_shade);
764 418
765 if (new_shade != shade) 419 if (new_shade != shade)
766 { 420 {
767 shade = new_shade; 421 shade = new_shade;
768 set_tint_shade_flags ();
769 return true; 422 return true;
770 } 423 }
771 424
772 return false; 425 return false;
773} 426}
774 427
775#if XRENDER 428# if BG_IMAGE_FROM_ROOT
776static void
777get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
778{
779 double sigma = radius / 2.0;
780 double scale = sqrt (2.0 * M_PI) * sigma;
781 double sum = 0.0;
782
783 for (int i = 0; i < width; i++)
784 {
785 double x = i - width / 2;
786 kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
787 sum += kernel[i];
788 }
789
790 params[0] = XDoubleToFixed (width);
791 params[1] = XDoubleToFixed (1);
792
793 for (int i = 0; i < width; i++)
794 params[i+2] = XDoubleToFixed (kernel[i] / sum);
795}
796#endif
797
798bool
799rxvt_term::blur_pixmap (Pixmap pixmap, Visual *visual, int width, int height, int depth)
800{
801 bool ret = false;
802#if XRENDER
803 if (!(bg_flags & BG_HAS_RENDER_CONV))
804 return false;
805
806 int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
807 double *kernel = (double *)malloc (size * sizeof (double));
808 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
809
810 XRenderPictureAttributes pa;
811 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
812
813 pa.repeat = RepeatPad;
814 Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
815 Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
816 Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
817 XFreePixmap (dpy, tmp);
818
819 if (kernel && params)
820 {
821 size = h_blurRadius * 2 + 1;
822 get_gaussian_kernel (h_blurRadius, size, kernel, params);
823
824 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
825 XRenderComposite (dpy,
826 PictOpSrc,
827 src,
828 None,
829 dst,
830 0, 0,
831 0, 0,
832 0, 0,
833 width, height);
834
835 ::swap (src, dst);
836
837 size = v_blurRadius * 2 + 1;
838 get_gaussian_kernel (v_blurRadius, size, kernel, params);
839 ::swap (params[0], params[1]);
840
841 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
842 XRenderComposite (dpy,
843 PictOpSrc,
844 src,
845 None,
846 dst,
847 0, 0,
848 0, 0,
849 0, 0,
850 width, height);
851
852 ret = true;
853 }
854
855 free (kernel);
856 free (params);
857 XRenderFreePicture (dpy, src);
858 XRenderFreePicture (dpy, dst);
859#endif
860 return ret;
861}
862
863bool
864rxvt_term::tint_pixmap (Pixmap pixmap, Visual *visual, int width, int height)
865{
866 bool ret = false;
867
868 if (shade == 100 && (bg_flags & BG_TINT_BITAND))
869 {
870 XGCValues gcv;
871 GC gc;
872
873 /* In this case we can tint image server-side getting significant
874 * performance improvements, as we eliminate XImage transfer
875 */
876 gcv.foreground = Pixel (tint);
877 gcv.function = GXand;
878 gcv.fill_style = FillSolid;
879 gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
880 if (gc)
881 {
882 XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
883 ret = true;
884 XFreeGC (dpy, gc);
885 }
886 }
887# if XRENDER
888 else if (bg_flags & BG_HAS_RENDER)
889 {
890 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
891
892 if (bg_flags & BG_TINT_SET)
893 tint.get (c);
894
895 if (shade <= 100)
896 {
897 c.r = c.r * shade / 100;
898 c.g = c.g * shade / 100;
899 c.b = c.b * shade / 100;
900 }
901 else
902 {
903 c.r = c.r * (200 - shade) / 100;
904 c.g = c.g * (200 - shade) / 100;
905 c.b = c.b * (200 - shade) / 100;
906 }
907
908 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
909
910 Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
911
912 Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
913
914 Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
915
916 XRenderColor mask_c;
917
918 mask_c.alpha = 0xffff;
919 mask_c.red =
920 mask_c.green =
921 mask_c.blue = 0;
922 XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
923
924 mask_c.alpha = 0;
925 mask_c.red = 0xffff - c.r;
926 mask_c.green = 0xffff - c.g;
927 mask_c.blue = 0xffff - c.b;
928 XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
929
930 XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
931
932 if (shade > 100)
933 {
934 mask_c.alpha = 0;
935 mask_c.red =
936 mask_c.green =
937 mask_c.blue = 0xffff * (shade - 100) / 100;
938 XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
939
940 XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
941 }
942
943 ret = true;
944
945 XRenderFreePicture (dpy, mask_pic);
946 XRenderFreePicture (dpy, overlay_pic);
947 XRenderFreePicture (dpy, back_pic);
948 }
949# endif
950
951 return ret;
952}
953
954/* 429/*
955 * Builds a pixmap of the same size as the terminal window that contains 430 * Builds a pixmap of the same size as the terminal window that contains
956 * the tiled portion of the root pixmap that is supposed to be covered by 431 * the tiled portion of the root pixmap that is supposed to be covered by
957 * our window. 432 * our window.
958 */ 433 */
959bool 434void
960rxvt_term::make_transparency_pixmap () 435rxvt_term::render_root_image ()
961{ 436{
962 bool ret = false;
963
964 /* root dimensions may change from call to call - but Display structure should 437 /* root dimensions may change from call to call - but Display structure should
965 * be always up-to-date, so let's use it : 438 * be always up-to-date, so let's use it :
966 */ 439 */
967 int screen = display->screen; 440 int screen = display->screen;
968 int root_depth = DefaultDepth (dpy, screen);
969 int root_width = DisplayWidth (dpy, screen); 441 int root_width = DisplayWidth (dpy, screen);
970 int root_height = DisplayHeight (dpy, screen); 442 int root_height = DisplayHeight (dpy, screen);
971 unsigned int root_pmap_width, root_pmap_height;
972 int window_width = szHint.width; 443 int parent_width = szHint.width;
973 int window_height = szHint.height; 444 int parent_height = szHint.height;
974 int sx, sy; 445 int sx, sy;
975 XGCValues gcv;
976 GC gc;
977 446
978 sx = target_x; 447 sx = parent_x;
979 sy = target_y; 448 sy = parent_y;
980 449
981 /* check if we are outside of the visible part of the virtual screen : */ 450 /* check if we are outside of the visible part of the virtual screen : */
982 if (sx + window_width <= 0 || sy + window_height <= 0 451 if (sx + parent_width <= 0 || sy + parent_height <= 0
983 || sx >= root_width || sy >= root_height) 452 || sx >= root_width || sy >= root_height)
984 return 0; 453 return;
985 454
986 // validate root pixmap and get its size 455 while (sx < 0) sx += root_img->w;
987 if (root_pixmap != None) 456 while (sy < 0) sy += root_img->h;
988 {
989 Window wdummy;
990 int idummy;
991 unsigned int udummy;
992 457
993 allowedxerror = -1; 458 rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
994 459
995 if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy)) 460 if (root_effects.need_blur ())
996 root_pixmap = None; 461 img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
997 462
998 allowedxerror = 0; 463 if (root_effects.need_tint ())
999 } 464 tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
1000 465
1001 Pixmap recoded_root_pmap = root_pixmap;
1002
1003 if (root_pixmap != None && root_depth != depth)
1004 {
1005#if XRENDER
1006 if (bg_flags & BG_HAS_RENDER)
1007 {
1008 recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
1009
1010 XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
1011 Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
1012
1013 XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual); 466 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
1014 Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0); 467 img->convert_format (format, pix_colors [Color_bg])->replace (img);
1015 468
1016 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height); 469 delete bg_img;
1017 470 bg_img = img;
1018 XRenderFreePicture (dpy, src);
1019 XRenderFreePicture (dpy, dst);
1020 }
1021 else
1022#endif
1023 recoded_root_pmap = None;
1024 }
1025
1026 if (recoded_root_pmap == None)
1027 return 0;
1028
1029 if (bg_pixmap == None
1030 || bg_pmap_width != window_width
1031 || bg_pmap_height != window_height)
1032 {
1033 if (bg_pixmap)
1034 XFreePixmap (dpy, bg_pixmap);
1035 bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1036 bg_pmap_width = window_width;
1037 bg_pmap_height = window_height;
1038 }
1039
1040 /* straightforward pixmap copy */
1041 while (sx < 0) sx += root_pmap_width;
1042 while (sy < 0) sy += root_pmap_height;
1043
1044 gcv.tile = recoded_root_pmap;
1045 gcv.fill_style = FillTiled;
1046 gcv.ts_x_origin = -sx;
1047 gcv.ts_y_origin = -sy;
1048 gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1049
1050 if (gc)
1051 {
1052 XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1053 ret = true;
1054 unsigned long tr_flags = bg_flags & BG_EFFECTS_FLAGS;
1055
1056 if (!(bg_flags & BG_CLIENT_RENDER))
1057 {
1058 if (bg_flags & BG_NEEDS_BLUR)
1059 {
1060 if (blur_pixmap (bg_pixmap, visual, window_width, window_height, depth))
1061 tr_flags &= ~BG_NEEDS_BLUR;
1062 }
1063 if (bg_flags & BG_NEEDS_TINT)
1064 {
1065 if (tint_pixmap (bg_pixmap, visual, window_width, window_height))
1066 tr_flags &= ~BG_NEEDS_TINT;
1067 }
1068 if (tr_flags & BG_NEEDS_TINT)
1069 {
1070 XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1071 if (ximage)
1072 {
1073 /* our own client-side tinting */
1074 tint_ximage (DefaultVisual (dpy, display->screen), ximage);
1075
1076 XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
1077 XDestroyImage (ximage);
1078 }
1079 }
1080 } /* server side rendering completed */
1081
1082 XFreeGC (dpy, gc);
1083 }
1084
1085 if (recoded_root_pmap != root_pixmap)
1086 XFreePixmap (dpy, recoded_root_pmap);
1087
1088 return ret;
1089} 471}
472# endif /* BG_IMAGE_FROM_ROOT */
1090 473
1091void 474void
1092rxvt_term::bg_set_root_pixmap ()
1093{
1094 Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]);
1095 if (new_root_pixmap == None)
1096 new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1097
1098 root_pixmap = new_root_pixmap;
1099}
1100# endif /* ENABLE_TRANSPARENCY */
1101
1102bool
1103rxvt_term::bg_render () 475rxvt_term::bg_render ()
1104{ 476{
1105 bool transparent = false; 477 if (bg_flags & BG_INHIBIT_RENDER)
478 return;
1106 479
1107 bg_invalidate (); 480 delete bg_img;
1108# ifdef ENABLE_TRANSPARENCY 481 bg_img = 0;
482 bg_flags = 0;
483
484 if (!mapped)
485 return;
486
487# if BG_IMAGE_FROM_ROOT
488 if (root_img)
489 {
490 render_root_image ();
1109 if (bg_flags & BG_IS_TRANSPARENT) 491 bg_flags |= BG_IS_TRANSPARENT;
1110 { 492 }
1111 /* we need to re-generate transparency pixmap in that case ! */
1112 transparent = make_transparency_pixmap ();
1113 if (transparent)
1114 bg_flags |= BG_IS_VALID;
1115 }
1116# endif 493# endif
1117 494
1118# ifdef BG_IMAGE_FROM_FILE 495# if BG_IMAGE_FROM_FILE
1119 if (bg_flags & BG_IS_FROM_FILE) 496 if (fimage.img)
1120 { 497 render_image (fimage);
1121 if (render_image (transparent))
1122 bg_flags |= BG_IS_VALID;
1123 }
1124# endif 498# endif
1125
1126 if (!(bg_flags & BG_IS_VALID))
1127 {
1128 if (bg_pixmap != None)
1129 {
1130 XFreePixmap (dpy, bg_pixmap);
1131 bg_pixmap = None;
1132 }
1133 }
1134 499
1135 scr_recolour (false); 500 scr_recolour (false);
1136 bg_flags |= BG_NEEDS_REFRESH; 501 bg_flags |= BG_NEEDS_REFRESH;
1137 502
1138 bg_valid_since = ev::now (); 503 bg_valid_since = ev::now ();
1139
1140 return true;
1141} 504}
1142 505
1143void 506void
1144rxvt_term::bg_init () 507rxvt_term::bg_init ()
1145{ 508{
1146#ifdef ENABLE_TRANSPARENCY 509#if BG_IMAGE_FROM_ROOT
1147 shade = 100; 510 if (option (Opt_transparent))
511 {
512 if (rs [Rs_blurradius])
513 root_effects.set_blur (rs [Rs_blurradius]);
514
515 if (ISSET_PIXCOLOR (Color_tint))
516 root_effects.set_tint (pix_colors_focused [Color_tint]);
517
518 if (rs [Rs_shade])
519 root_effects.set_shade (rs [Rs_shade]);
520
521 rxvt_img::new_from_root (this)->replace (root_img);
522 XSelectInput (dpy, display->root, PropertyChangeMask);
523 rootwin_ev.start (display, display->root);
524 }
1148#endif 525#endif
1149 526
1150 bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV); 527#if BG_IMAGE_FROM_FILE
1151#if XRENDER 528 if (rs[Rs_backgroundPixmap])
1152 int major, minor;
1153 if (XRenderQueryVersion (dpy, &major, &minor))
1154 bg_flags |= BG_HAS_RENDER;
1155 XFilters *filters = XRenderQueryFilters (dpy, vt);
1156 if (filters)
1157 { 529 {
1158 for (int i = 0; i < filters->nfilter; i++) 530 fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1159 if (!strcmp (filters->filter[i], FilterConvolution)) 531 if (!bg_window_position_sensitive ())
1160 bg_flags |= BG_HAS_RENDER_CONV; 532 update_background ();
1161
1162 XFree (filters);
1163 } 533 }
1164#endif 534#endif
1165} 535}
1166 536
1167#endif /* HAVE_BG_PIXMAP */
1168
1169#ifdef ENABLE_TRANSPARENCY
1170/* based on code from aterm-0.4.2 */
1171
1172static inline void
1173fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1174{
1175 for (int i = 0; i <= mask >> sh; i++)
1176 {
1177 uint32_t tmp;
1178 tmp = i * high;
1179 tmp += (mask >> sh) * low;
1180 lookup[i] = (tmp / 0xffff) << sh;
1181 }
1182}
1183
1184void 537void
1185rxvt_term::tint_ximage (Visual *visual, XImage *ximage) 538rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1186{ 539{
1187 unsigned int size_r, size_g, size_b;
1188 int sh_r, sh_g, sh_b;
1189 uint32_t mask_r, mask_g, mask_b;
1190 uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1191 unsigned short low;
1192 int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1193
1194 if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1195
1196 /* for convenience */
1197 mask_r = visual->red_mask;
1198 mask_g = visual->green_mask;
1199 mask_b = visual->blue_mask;
1200
1201 /* boring lookup table pre-initialization */
1202 sh_r = ecb_ctz32 (mask_r);
1203 sh_g = ecb_ctz32 (mask_g);
1204 sh_b = ecb_ctz32 (mask_b);
1205
1206 size_r = mask_r >> sh_r;
1207 size_g = mask_g >> sh_g;
1208 size_b = mask_b >> sh_b;
1209
1210 if (size_r++ > 255 || size_g++ > 255 || size_b++ > 255)
1211 return;
1212
1213 lookup = (uint32_t *)malloc (sizeof (uint32_t) * (size_r + size_g + size_b));
1214 lookup_r = lookup;
1215 lookup_g = lookup + size_r;
1216 lookup_b = lookup + size_r + size_g;
1217
1218 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC); 540 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1219 541
1220 if (bg_flags & BG_TINT_SET) 542 if (tint_set)
1221 tint.get (c); 543 tint.get (c);
1222 544
1223 /* prepare limits for color transformation (each channel is handled separately) */
1224 if (shade > 100) 545 if (shade > 100)
1225 { 546 {
1226 c.r = c.r * (200 - shade) / 100; 547 c.r = c.r * (200 - shade) / 100;
1227 c.g = c.g * (200 - shade) / 100; 548 c.g = c.g * (200 - shade) / 100;
1228 c.b = c.b * (200 - shade) / 100; 549 c.b = c.b * (200 - shade) / 100;
1229
1230 low = 0xffff * (shade - 100) / 100;
1231 } 550 }
1232 else 551 else
1233 { 552 {
1234 c.r = c.r * shade / 100; 553 c.r = c.r * shade / 100;
1235 c.g = c.g * shade / 100; 554 c.g = c.g * shade / 100;
1236 c.b = c.b * shade / 100; 555 c.b = c.b * shade / 100;
1237
1238 low = 0;
1239 }
1240
1241 /* fill our lookup tables */
1242 fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1243 fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1244 fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1245
1246 /* apply table to input image (replacing colors by newly calculated ones) */
1247 if (ximage->bits_per_pixel == 32
1248 && ximage->byte_order == host_byte_order)
1249 { 556 }
1250 char *line = ximage->data;
1251 557
1252 for (int y = 0; y < ximage->height; y++) 558 img->contrast (c.r, c.g, c.b, c.a);
1253 { 559
1254 uint32_t *p = (uint32_t *)line; 560 if (shade > 100)
1255 for (int x = 0; x < ximage->width; x++)
1256 {
1257 *p = lookup_r[(*p & mask_r) >> sh_r] |
1258 lookup_g[(*p & mask_g) >> sh_g] |
1259 lookup_b[(*p & mask_b) >> sh_b];
1260 p++;
1261 }
1262 line += ximage->bytes_per_line;
1263 }
1264 } 561 {
1265 else 562 c.a = 0xffff;
563 c.r =
564 c.g =
565 c.b = 0xffff * (shade - 100) / 100;
566 img->brightness (c.r, c.g, c.b, c.a);
1266 { 567 }
1267 for (int y = 0; y < ximage->height; y++)
1268 for (int x = 0; x < ximage->width; x++)
1269 {
1270 unsigned long pixel = XGetPixel (ximage, x, y);
1271 pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1272 lookup_g[(pixel & mask_g) >> sh_g] |
1273 lookup_b[(pixel & mask_b) >> sh_b];
1274 XPutPixel (ximage, x, y, pixel);
1275 }
1276 }
1277
1278 free (lookup);
1279} 568}
1280#endif /* ENABLE_TRANSPARENCY */ 569
570#endif /* HAVE_BG_PIXMAP */

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