1 |
/*----------------------------------------------------------------------* |
2 |
* File: background.C - former xpm.C |
3 |
*----------------------------------------------------------------------* |
4 |
* |
5 |
* All portions of code are copyright by their respective author/s. |
6 |
* Copyright (c) 2005-2008 Marc Lehmann <schmorp@schmorp.de> |
7 |
* Copyright (c) 2007 Sasha Vasko <sasha@aftercode.net> |
8 |
* Copyright (c) 2010-2012 Emanuele Giaquinta <e.giaquinta@glauco.it> |
9 |
* |
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 |
12 |
* the Free Software Foundation; either version 2 of the License, or |
13 |
* (at your option) any later version. |
14 |
* |
15 |
* This program is distributed in the hope that it will be useful, |
16 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
17 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
18 |
* GNU General Public License for more details. |
19 |
* |
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 |
22 |
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
23 |
*---------------------------------------------------------------------*/ |
24 |
|
25 |
#include <math.h> |
26 |
#include "../config.h" /* NECESSARY */ |
27 |
#include "rxvt.h" /* NECESSARY */ |
28 |
|
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 |
42 |
# if XRENDER |
43 |
static Picture |
44 |
create_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 |
|
60 |
void |
61 |
rxvt_term::bg_destroy () |
62 |
{ |
63 |
if (bg_pixmap) |
64 |
XFreePixmap (dpy, bg_pixmap); |
65 |
} |
66 |
|
67 |
bool |
68 |
rxvt_term::bg_set_position (int x, int y) |
69 |
{ |
70 |
|
71 |
if (target_x != x |
72 |
|| target_y != y) |
73 |
{ |
74 |
target_x = x; |
75 |
target_y = y; |
76 |
return true; |
77 |
} |
78 |
return false; |
79 |
} |
80 |
|
81 |
bool |
82 |
rxvt_term::bg_window_size_sensitive () |
83 |
{ |
84 |
# ifdef ENABLE_TRANSPARENCY |
85 |
if (bg_flags & BG_IS_TRANSPARENT) |
86 |
return true; |
87 |
# endif |
88 |
|
89 |
# ifdef BG_IMAGE_FROM_FILE |
90 |
if (bg_image.flags & IM_IS_SET) |
91 |
{ |
92 |
if ((bg_image.flags & IM_IS_SIZE_SENSITIVE) |
93 |
|| bg_image.width () > szHint.width |
94 |
|| bg_image.height () > szHint.height) |
95 |
return true; |
96 |
} |
97 |
# endif |
98 |
|
99 |
return false; |
100 |
} |
101 |
|
102 |
bool |
103 |
rxvt_term::bg_window_position_sensitive () |
104 |
{ |
105 |
# ifdef ENABLE_TRANSPARENCY |
106 |
if (bg_flags & BG_IS_TRANSPARENT) |
107 |
return true; |
108 |
# endif |
109 |
|
110 |
# ifdef BG_IMAGE_FROM_FILE |
111 |
if (bg_image.flags & IM_IS_SET) |
112 |
{ |
113 |
if (bg_image.flags & IM_ROOT_ALIGN) |
114 |
return true; |
115 |
} |
116 |
# endif |
117 |
|
118 |
return false; |
119 |
} |
120 |
|
121 |
# ifdef BG_IMAGE_FROM_FILE |
122 |
static inline int |
123 |
make_align_position (int align, int window_size, int image_size) |
124 |
{ |
125 |
if (align >= 0 && align <= 100) |
126 |
return lerp (0, window_size - image_size, align); |
127 |
else if (align > 100) |
128 |
return lerp (window_size - image_size, window_size, align - 100); |
129 |
else |
130 |
return lerp (-image_size, 0, align + 100); |
131 |
} |
132 |
|
133 |
static inline int |
134 |
make_clip_rectangle (int pos, int size, int target_size, int &dst_pos, int &dst_size) |
135 |
{ |
136 |
int src_pos = 0; |
137 |
dst_pos = pos; |
138 |
dst_size = size; |
139 |
if (pos < 0) |
140 |
{ |
141 |
src_pos = -pos; |
142 |
dst_pos = 0; |
143 |
dst_size += pos; |
144 |
} |
145 |
|
146 |
min_it (dst_size, target_size - dst_pos); |
147 |
return src_pos; |
148 |
} |
149 |
|
150 |
static void |
151 |
parse_style (const char *style, int &x, int &y, unsigned int &w, unsigned int &h, uint8_t &flags) |
152 |
{ |
153 |
if (!strcasecmp (style, "tiled")) |
154 |
{ |
155 |
flags = IM_TILE; |
156 |
w = h = noScale; |
157 |
x = y = 0; |
158 |
} |
159 |
else if (!strcasecmp (style, "aspect-stretched")) |
160 |
{ |
161 |
flags = IM_KEEP_ASPECT; |
162 |
w = h = windowScale; |
163 |
x = y = centerAlign; |
164 |
} |
165 |
else if (!strcasecmp (style, "stretched")) |
166 |
{ |
167 |
flags = 0; |
168 |
w = h = windowScale; |
169 |
x = y = centerAlign; |
170 |
} |
171 |
else if (!strcasecmp (style, "centered")) |
172 |
{ |
173 |
flags = 0; |
174 |
w = h = noScale; |
175 |
x = y = centerAlign; |
176 |
} |
177 |
else if (!strcasecmp (style, "root-tiled")) |
178 |
{ |
179 |
flags = IM_TILE|IM_ROOT_ALIGN; |
180 |
w = h = noScale; |
181 |
x = y = 0; |
182 |
} |
183 |
} |
184 |
|
185 |
bool |
186 |
rxvt_image::set_geometry (const char *geom, bool update) |
187 |
{ |
188 |
bool changed = false; |
189 |
int geom_flags = 0; |
190 |
int x = h_align; |
191 |
int y = v_align; |
192 |
unsigned int w = h_scale; |
193 |
unsigned int h = v_scale; |
194 |
uint8_t new_flags = 0; |
195 |
|
196 |
if (geom == NULL) |
197 |
return false; |
198 |
|
199 |
if (geom[0]) |
200 |
{ |
201 |
char **arr = rxvt_strsplit (':', geom); |
202 |
|
203 |
for (int i = 0; arr[i]; i++) |
204 |
{ |
205 |
if (!strncasecmp (arr[i], "style=", 6)) |
206 |
{ |
207 |
parse_style (arr[i] + 6, x, y, w, h, new_flags); |
208 |
geom_flags = WidthValue|HeightValue|XValue|YValue; |
209 |
} |
210 |
else if (!strcasecmp (arr[i], "op=tile")) |
211 |
new_flags |= IM_TILE; |
212 |
else if (!strcasecmp (arr[i], "op=keep-aspect")) |
213 |
new_flags |= IM_KEEP_ASPECT; |
214 |
else if (!strcasecmp (arr[i], "op=root-align")) |
215 |
new_flags |= IM_ROOT_ALIGN; |
216 |
|
217 |
// deprecated |
218 |
else if (!strcasecmp (arr[i], "tile")) |
219 |
{ |
220 |
new_flags |= IM_TILE; |
221 |
w = h = noScale; |
222 |
geom_flags |= WidthValue|HeightValue; |
223 |
} |
224 |
else if (!strcasecmp (arr[i], "propscale")) |
225 |
{ |
226 |
new_flags |= IM_KEEP_ASPECT; |
227 |
w = h = windowScale; |
228 |
geom_flags |= WidthValue|HeightValue; |
229 |
} |
230 |
else if (!strcasecmp (arr[i], "hscale")) |
231 |
{ |
232 |
new_flags |= IM_TILE; |
233 |
w = windowScale; |
234 |
h = noScale; |
235 |
geom_flags |= WidthValue|HeightValue; |
236 |
} |
237 |
else if (!strcasecmp (arr[i], "vscale")) |
238 |
{ |
239 |
new_flags |= IM_TILE; |
240 |
h = windowScale; |
241 |
w = noScale; |
242 |
geom_flags |= WidthValue|HeightValue; |
243 |
} |
244 |
else if (!strcasecmp (arr[i], "scale")) |
245 |
{ |
246 |
w = h = windowScale; |
247 |
geom_flags |= WidthValue|HeightValue; |
248 |
} |
249 |
else if (!strcasecmp (arr[i], "auto")) |
250 |
{ |
251 |
w = h = windowScale; |
252 |
x = y = centerAlign; |
253 |
geom_flags |= WidthValue|HeightValue|XValue|YValue; |
254 |
} |
255 |
else if (!strcasecmp (arr[i], "root")) |
256 |
{ |
257 |
new_flags |= IM_TILE|IM_ROOT_ALIGN; |
258 |
w = h = noScale; |
259 |
geom_flags |= WidthValue|HeightValue; |
260 |
} |
261 |
|
262 |
else |
263 |
geom_flags |= XParseGeometry (arr[i], &x, &y, &w, &h); |
264 |
} /* done parsing ops */ |
265 |
|
266 |
rxvt_free_strsplit (arr); |
267 |
} |
268 |
|
269 |
new_flags |= flags & ~IM_GEOMETRY_FLAGS; |
270 |
|
271 |
if (!update) |
272 |
{ |
273 |
if (!(geom_flags & XValue)) |
274 |
x = y = defaultAlign; |
275 |
else if (!(geom_flags & YValue)) |
276 |
y = x; |
277 |
|
278 |
if (!(geom_flags & (WidthValue|HeightValue))) |
279 |
w = h = defaultScale; |
280 |
else if (!(geom_flags & HeightValue)) |
281 |
h = w; |
282 |
else if (!(geom_flags & WidthValue)) |
283 |
w = h; |
284 |
} |
285 |
|
286 |
clamp_it (x, -100, 200); |
287 |
clamp_it (y, -100, 200); |
288 |
|
289 |
if (flags != new_flags |
290 |
|| h_scale != w |
291 |
|| v_scale != h |
292 |
|| h_align != x |
293 |
|| v_align != y) |
294 |
{ |
295 |
flags = new_flags; |
296 |
h_scale = w; |
297 |
v_scale = h; |
298 |
h_align = x; |
299 |
v_align = y; |
300 |
changed = true; |
301 |
} |
302 |
|
303 |
if (!(flags & IM_TILE) |
304 |
|| h_scale || v_scale |
305 |
|| (!(flags & IM_ROOT_ALIGN) && (h_align || v_align))) |
306 |
flags |= IM_IS_SIZE_SENSITIVE; |
307 |
else |
308 |
flags &= ~IM_IS_SIZE_SENSITIVE; |
309 |
|
310 |
return changed; |
311 |
} |
312 |
|
313 |
void |
314 |
rxvt_term::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y) |
315 |
{ |
316 |
int image_width = image.width (); |
317 |
int image_height = image.height (); |
318 |
int target_width = szHint.width; |
319 |
int target_height = szHint.height; |
320 |
int h_scale = min (image.h_scale, 32767 * 100 / target_width); |
321 |
int v_scale = min (image.v_scale, 32767 * 100 / target_height); |
322 |
|
323 |
w = h_scale * target_width / 100; |
324 |
h = v_scale * target_height / 100; |
325 |
|
326 |
if (image.flags & IM_KEEP_ASPECT) |
327 |
{ |
328 |
float scale = (float)w / image_width; |
329 |
min_it (scale, (float)h / image_height); |
330 |
w = image_width * scale + 0.5; |
331 |
h = image_height * scale + 0.5; |
332 |
} |
333 |
|
334 |
if (!w) w = image_width; |
335 |
if (!h) h = image_height; |
336 |
|
337 |
if (image.flags & IM_ROOT_ALIGN) |
338 |
{ |
339 |
x = -target_x; |
340 |
y = -target_y; |
341 |
} |
342 |
else |
343 |
{ |
344 |
x = make_align_position (image.h_align, target_width, w); |
345 |
y = make_align_position (image.v_align, target_height, h); |
346 |
} |
347 |
} |
348 |
|
349 |
# ifdef HAVE_PIXBUF |
350 |
bool |
351 |
rxvt_term::pixbuf_to_pixmap (GdkPixbuf *pixbuf, Pixmap pixmap, GC gc, |
352 |
int src_x, int src_y, int dst_x, int dst_y, |
353 |
unsigned int width, unsigned int height, bool argb) |
354 |
{ |
355 |
XImage *ximage; |
356 |
char *line; |
357 |
int width_r, width_g, width_b, width_a; |
358 |
int sh_r, sh_g, sh_b, sh_a; |
359 |
uint32_t red_mask, green_mask, blue_mask, alpha_mask; |
360 |
int rowstride; |
361 |
int channels; |
362 |
unsigned char *row; |
363 |
|
364 |
if (visual->c_class != TrueColor) |
365 |
return false; |
366 |
|
367 |
if (argb) |
368 |
{ |
369 |
red_mask = 0xff << 16; |
370 |
green_mask = 0xff << 8; |
371 |
blue_mask = 0xff; |
372 |
alpha_mask = 0xff << 24; |
373 |
} |
374 |
else |
375 |
{ |
376 |
red_mask = visual->red_mask; |
377 |
green_mask = visual->green_mask; |
378 |
blue_mask = visual->blue_mask; |
379 |
#if XRENDER |
380 |
XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); |
381 |
if (format) |
382 |
alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha; |
383 |
else |
384 |
#endif |
385 |
alpha_mask = 0; |
386 |
} |
387 |
|
388 |
width_r = ecb_popcount32 (red_mask); |
389 |
width_g = ecb_popcount32 (green_mask); |
390 |
width_b = ecb_popcount32 (blue_mask); |
391 |
width_a = ecb_popcount32 (alpha_mask); |
392 |
|
393 |
if (width_r > 8 || width_g > 8 || width_b > 8 || width_a > 8) |
394 |
return false; |
395 |
|
396 |
sh_r = ecb_ctz32 (red_mask); |
397 |
sh_g = ecb_ctz32 (green_mask); |
398 |
sh_b = ecb_ctz32 (blue_mask); |
399 |
sh_a = ecb_ctz32 (alpha_mask); |
400 |
|
401 |
if (width > 32767 || height > 32767) |
402 |
return false; |
403 |
|
404 |
ximage = XCreateImage (dpy, visual, argb ? 32 : depth, ZPixmap, 0, 0, |
405 |
width, height, 32, 0); |
406 |
if (!ximage) |
407 |
return false; |
408 |
|
409 |
if (height > INT_MAX / ximage->bytes_per_line |
410 |
|| !(ximage->data = (char *)malloc (height * ximage->bytes_per_line))) |
411 |
{ |
412 |
XDestroyImage (ximage); |
413 |
return false; |
414 |
} |
415 |
|
416 |
ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
417 |
|
418 |
rowstride = gdk_pixbuf_get_rowstride (pixbuf); |
419 |
channels = gdk_pixbuf_get_n_channels (pixbuf); |
420 |
row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels; |
421 |
line = ximage->data; |
422 |
|
423 |
rgba c (0, 0, 0); |
424 |
|
425 |
if (channels == 4 && alpha_mask == 0) |
426 |
{ |
427 |
pix_colors[Color_bg].get (c); |
428 |
c.r >>= 8; |
429 |
c.g >>= 8; |
430 |
c.b >>= 8; |
431 |
} |
432 |
|
433 |
for (int y = 0; y < height; y++) |
434 |
{ |
435 |
for (int x = 0; x < width; x++) |
436 |
{ |
437 |
unsigned char *pixel = row + x * channels; |
438 |
uint32_t value; |
439 |
unsigned char r, g, b, a; |
440 |
|
441 |
if (channels == 4) |
442 |
{ |
443 |
a = pixel[3]; |
444 |
r = (pixel[0] * a + c.r * (0xff - a)) / 0xff; |
445 |
g = (pixel[1] * a + c.g * (0xff - a)) / 0xff; |
446 |
b = (pixel[2] * a + c.b * (0xff - a)) / 0xff; |
447 |
} |
448 |
else |
449 |
{ |
450 |
a = 0xff; |
451 |
r = pixel[0]; |
452 |
g = pixel[1]; |
453 |
b = pixel[2]; |
454 |
} |
455 |
|
456 |
value = ((r >> (8 - width_r)) << sh_r) |
457 |
| ((g >> (8 - width_g)) << sh_g) |
458 |
| ((b >> (8 - width_b)) << sh_b) |
459 |
| ((a >> (8 - width_a)) << sh_a); |
460 |
|
461 |
if (ximage->bits_per_pixel == 32) |
462 |
((uint32_t *)line)[x] = value; |
463 |
else |
464 |
XPutPixel (ximage, x, y, value); |
465 |
} |
466 |
|
467 |
row += rowstride; |
468 |
line += ximage->bytes_per_line; |
469 |
} |
470 |
|
471 |
XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height); |
472 |
XDestroyImage (ximage); |
473 |
return true; |
474 |
} |
475 |
|
476 |
bool |
477 |
rxvt_term::render_image (rxvt_image &image) |
478 |
{ |
479 |
GdkPixbuf *pixbuf = image.pixbuf; |
480 |
if (!pixbuf) |
481 |
return false; |
482 |
|
483 |
bool need_blend = bg_flags & BG_IS_VALID; |
484 |
|
485 |
if (need_blend |
486 |
&& !(bg_flags & BG_HAS_RENDER)) |
487 |
return false; |
488 |
|
489 |
GdkPixbuf *result; |
490 |
|
491 |
int image_width = gdk_pixbuf_get_width (pixbuf); |
492 |
int image_height = gdk_pixbuf_get_height (pixbuf); |
493 |
|
494 |
int target_width = szHint.width; |
495 |
int target_height = szHint.height; |
496 |
int new_pmap_width = target_width; |
497 |
int new_pmap_height = target_height; |
498 |
|
499 |
int x = 0; |
500 |
int y = 0; |
501 |
int w = 0; |
502 |
int h = 0; |
503 |
|
504 |
get_image_geometry (image, w, h, x, y); |
505 |
|
506 |
if (!(image.flags & IM_ROOT_ALIGN) |
507 |
&& (x >= target_width |
508 |
|| y >= target_height |
509 |
|| x + w <= 0 |
510 |
|| y + h <= 0)) |
511 |
return false; |
512 |
|
513 |
result = pixbuf; |
514 |
|
515 |
if (w != image_width |
516 |
|| h != image_height) |
517 |
{ |
518 |
result = gdk_pixbuf_scale_simple (pixbuf, |
519 |
w, h, |
520 |
GDK_INTERP_BILINEAR); |
521 |
} |
522 |
|
523 |
if (!result) |
524 |
return false; |
525 |
|
526 |
bool ret = false; |
527 |
|
528 |
XGCValues gcv; |
529 |
GC gc; |
530 |
Pixmap tmp_pixmap; |
531 |
|
532 |
image_width = gdk_pixbuf_get_width (result); |
533 |
image_height = gdk_pixbuf_get_height (result); |
534 |
|
535 |
if (need_blend) |
536 |
tmp_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, 32); |
537 |
else |
538 |
{ |
539 |
if (image.flags & IM_TILE) |
540 |
{ |
541 |
new_pmap_width = min (image_width, target_width); |
542 |
new_pmap_height = min (image_height, target_height); |
543 |
} |
544 |
|
545 |
if (bg_pixmap == None |
546 |
|| bg_pmap_width != new_pmap_width |
547 |
|| bg_pmap_height != new_pmap_height) |
548 |
{ |
549 |
if (bg_pixmap) |
550 |
XFreePixmap (dpy, bg_pixmap); |
551 |
bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth); |
552 |
bg_pmap_width = new_pmap_width; |
553 |
bg_pmap_height = new_pmap_height; |
554 |
} |
555 |
|
556 |
tmp_pixmap = bg_pixmap; |
557 |
} |
558 |
|
559 |
gcv.foreground = pix_colors[Color_bg]; |
560 |
gc = XCreateGC (dpy, tmp_pixmap, GCForeground, &gcv); |
561 |
|
562 |
if (gc) |
563 |
{ |
564 |
if (image.flags & IM_TILE) |
565 |
{ |
566 |
Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, need_blend ? 32 : depth); |
567 |
pixbuf_to_pixmap (result, tile, gc, |
568 |
0, 0, |
569 |
0, 0, |
570 |
image_width, image_height, need_blend); |
571 |
|
572 |
gcv.tile = tile; |
573 |
gcv.fill_style = FillTiled; |
574 |
gcv.ts_x_origin = x; |
575 |
gcv.ts_y_origin = y; |
576 |
XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv); |
577 |
|
578 |
XFillRectangle (dpy, tmp_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height); |
579 |
XFreePixmap (dpy, tile); |
580 |
} |
581 |
else |
582 |
{ |
583 |
int src_x, src_y, dst_x, dst_y; |
584 |
int dst_width, dst_height; |
585 |
|
586 |
src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width ); |
587 |
src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height); |
588 |
|
589 |
if (dst_x > 0 || dst_y > 0 |
590 |
|| dst_x + dst_width < new_pmap_width |
591 |
|| dst_y + dst_height < new_pmap_height) |
592 |
XFillRectangle (dpy, tmp_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height); |
593 |
|
594 |
if (dst_x < new_pmap_width && dst_y < new_pmap_height) |
595 |
pixbuf_to_pixmap (result, tmp_pixmap, gc, |
596 |
src_x, src_y, |
597 |
dst_x, dst_y, |
598 |
dst_width, dst_height, need_blend); |
599 |
} |
600 |
|
601 |
#if XRENDER |
602 |
if (need_blend) |
603 |
{ |
604 |
XRenderPictFormat *argb_format = XRenderFindStandardFormat (dpy, PictStandardARGB32); |
605 |
XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); |
606 |
|
607 |
Picture src = XRenderCreatePicture (dpy, tmp_pixmap, argb_format, 0, 0); |
608 |
|
609 |
Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0); |
610 |
|
611 |
Picture mask = create_xrender_mask (dpy, vt, False, False); |
612 |
|
613 |
XRenderColor mask_c; |
614 |
|
615 |
mask_c.alpha = 0x8000; |
616 |
mask_c.red = |
617 |
mask_c.green = |
618 |
mask_c.blue = 0; |
619 |
XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); |
620 |
|
621 |
XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height); |
622 |
|
623 |
XRenderFreePicture (dpy, src); |
624 |
XRenderFreePicture (dpy, dst); |
625 |
XRenderFreePicture (dpy, mask); |
626 |
} |
627 |
#endif |
628 |
|
629 |
XFreeGC (dpy, gc); |
630 |
|
631 |
ret = true; |
632 |
} |
633 |
|
634 |
if (result != pixbuf) |
635 |
g_object_unref (result); |
636 |
|
637 |
if (need_blend) |
638 |
XFreePixmap (dpy, tmp_pixmap); |
639 |
|
640 |
return ret; |
641 |
} |
642 |
# endif /* HAVE_PIXBUF */ |
643 |
|
644 |
bool |
645 |
rxvt_image::set_file (const char *file) |
646 |
{ |
647 |
if (!file || !*file) |
648 |
return false; |
649 |
|
650 |
bool ret = false; |
651 |
const char *p = strchr (file, ';'); |
652 |
|
653 |
if (p) |
654 |
{ |
655 |
size_t len = p - file; |
656 |
char *f = rxvt_temp_buf<char> (len + 1); |
657 |
memcpy (f, file, len); |
658 |
f[len] = '\0'; |
659 |
file = f; |
660 |
} |
661 |
|
662 |
# ifdef HAVE_PIXBUF |
663 |
GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL); |
664 |
if (image) |
665 |
{ |
666 |
if (pixbuf) |
667 |
g_object_unref (pixbuf); |
668 |
pixbuf = image; |
669 |
ret = true; |
670 |
} |
671 |
# endif |
672 |
|
673 |
if (ret) |
674 |
{ |
675 |
flags = IM_IS_SET | IM_IS_SIZE_SENSITIVE; |
676 |
h_scale = v_scale = defaultScale; |
677 |
h_align = v_align = defaultAlign; |
678 |
|
679 |
if (p) |
680 |
set_geometry (p + 1); |
681 |
} |
682 |
|
683 |
return ret; |
684 |
} |
685 |
|
686 |
# endif /* BG_IMAGE_FROM_FILE */ |
687 |
|
688 |
# ifdef ENABLE_TRANSPARENCY |
689 |
bool |
690 |
rxvt_term::bg_set_blur (const char *geom) |
691 |
{ |
692 |
bool changed = false; |
693 |
unsigned int hr, vr; |
694 |
int junk; |
695 |
int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr); |
696 |
|
697 |
if (!(geom_flags & WidthValue)) |
698 |
hr = 1; |
699 |
if (!(geom_flags & HeightValue)) |
700 |
vr = hr; |
701 |
|
702 |
min_it (hr, 128); |
703 |
min_it (vr, 128); |
704 |
|
705 |
if (h_blurRadius != hr) |
706 |
{ |
707 |
changed = true; |
708 |
h_blurRadius = hr; |
709 |
} |
710 |
|
711 |
if (v_blurRadius != vr) |
712 |
{ |
713 |
changed = true; |
714 |
v_blurRadius = vr; |
715 |
} |
716 |
|
717 |
return changed; |
718 |
} |
719 |
|
720 |
bool |
721 |
rxvt_term::bg_set_tint (rxvt_color &new_tint) |
722 |
{ |
723 |
if (!(bg_flags & BG_TINT_SET) || tint != new_tint) |
724 |
{ |
725 |
tint = new_tint; |
726 |
bg_flags |= BG_TINT_SET; |
727 |
|
728 |
rgba c; |
729 |
tint.get (c); |
730 |
if ((c.r <= 0x00ff || c.r >= 0xff00) |
731 |
&& (c.g <= 0x00ff || c.g >= 0xff00) |
732 |
&& (c.b <= 0x00ff || c.b >= 0xff00)) |
733 |
bg_flags |= BG_TINT_BITAND; |
734 |
else |
735 |
bg_flags &= ~BG_TINT_BITAND; |
736 |
|
737 |
return true; |
738 |
} |
739 |
|
740 |
return false; |
741 |
} |
742 |
|
743 |
bool |
744 |
rxvt_term::bg_set_shade (const char *shade_str) |
745 |
{ |
746 |
int new_shade = atoi (shade_str); |
747 |
|
748 |
clamp_it (new_shade, -100, 200); |
749 |
if (new_shade < 0) |
750 |
new_shade = 200 - (100 + new_shade); |
751 |
|
752 |
if (new_shade != shade) |
753 |
{ |
754 |
shade = new_shade; |
755 |
return true; |
756 |
} |
757 |
|
758 |
return false; |
759 |
} |
760 |
|
761 |
#if XRENDER |
762 |
static void |
763 |
get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params) |
764 |
{ |
765 |
double sigma = radius / 2.0; |
766 |
double scale = sqrt (2.0 * M_PI) * sigma; |
767 |
double sum = 0.0; |
768 |
|
769 |
for (int i = 0; i < width; i++) |
770 |
{ |
771 |
double x = i - width / 2; |
772 |
kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
773 |
sum += kernel[i]; |
774 |
} |
775 |
|
776 |
params[0] = XDoubleToFixed (width); |
777 |
params[1] = XDoubleToFixed (1); |
778 |
|
779 |
for (int i = 0; i < width; i++) |
780 |
params[i+2] = XDoubleToFixed (kernel[i] / sum); |
781 |
} |
782 |
#endif |
783 |
|
784 |
bool |
785 |
rxvt_term::blur_pixmap (Pixmap pixmap, int width, int height) |
786 |
{ |
787 |
bool ret = false; |
788 |
#if XRENDER |
789 |
if (!(bg_flags & BG_HAS_RENDER_CONV)) |
790 |
return false; |
791 |
|
792 |
int size = max (h_blurRadius, v_blurRadius) * 2 + 1; |
793 |
double *kernel = (double *)malloc (size * sizeof (double)); |
794 |
XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
795 |
|
796 |
XRenderPictureAttributes pa; |
797 |
XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); |
798 |
|
799 |
pa.repeat = RepeatPad; |
800 |
Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa); |
801 |
Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth); |
802 |
Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa); |
803 |
XFreePixmap (dpy, tmp); |
804 |
|
805 |
if (kernel && params) |
806 |
{ |
807 |
size = h_blurRadius * 2 + 1; |
808 |
get_gaussian_kernel (h_blurRadius, size, kernel, params); |
809 |
|
810 |
XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); |
811 |
XRenderComposite (dpy, |
812 |
PictOpSrc, |
813 |
src, |
814 |
None, |
815 |
dst, |
816 |
0, 0, |
817 |
0, 0, |
818 |
0, 0, |
819 |
width, height); |
820 |
|
821 |
::swap (src, dst); |
822 |
|
823 |
size = v_blurRadius * 2 + 1; |
824 |
get_gaussian_kernel (v_blurRadius, size, kernel, params); |
825 |
::swap (params[0], params[1]); |
826 |
|
827 |
XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); |
828 |
XRenderComposite (dpy, |
829 |
PictOpSrc, |
830 |
src, |
831 |
None, |
832 |
dst, |
833 |
0, 0, |
834 |
0, 0, |
835 |
0, 0, |
836 |
width, height); |
837 |
|
838 |
ret = true; |
839 |
} |
840 |
|
841 |
free (kernel); |
842 |
free (params); |
843 |
XRenderFreePicture (dpy, src); |
844 |
XRenderFreePicture (dpy, dst); |
845 |
#endif |
846 |
return ret; |
847 |
} |
848 |
|
849 |
bool |
850 |
rxvt_term::tint_pixmap (Pixmap pixmap, int width, int height) |
851 |
{ |
852 |
bool ret = false; |
853 |
|
854 |
if (shade == 100 && (bg_flags & BG_TINT_BITAND)) |
855 |
{ |
856 |
XGCValues gcv; |
857 |
GC gc; |
858 |
|
859 |
/* In this case we can tint image server-side getting significant |
860 |
* performance improvements, as we eliminate XImage transfer |
861 |
*/ |
862 |
gcv.foreground = Pixel (tint); |
863 |
gcv.function = GXand; |
864 |
gcv.fill_style = FillSolid; |
865 |
gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv); |
866 |
if (gc) |
867 |
{ |
868 |
XFillRectangle (dpy, pixmap, gc, 0, 0, width, height); |
869 |
ret = true; |
870 |
XFreeGC (dpy, gc); |
871 |
} |
872 |
} |
873 |
# if XRENDER |
874 |
else if (bg_flags & BG_HAS_RENDER) |
875 |
{ |
876 |
rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC); |
877 |
|
878 |
if (bg_flags & BG_TINT_SET) |
879 |
tint.get (c); |
880 |
|
881 |
if (shade <= 100) |
882 |
{ |
883 |
c.r = c.r * shade / 100; |
884 |
c.g = c.g * shade / 100; |
885 |
c.b = c.b * shade / 100; |
886 |
} |
887 |
else |
888 |
{ |
889 |
c.r = c.r * (200 - shade) / 100; |
890 |
c.g = c.g * (200 - shade) / 100; |
891 |
c.b = c.b * (200 - shade) / 100; |
892 |
} |
893 |
|
894 |
XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); |
895 |
|
896 |
Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0); |
897 |
|
898 |
Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False); |
899 |
|
900 |
Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True); |
901 |
|
902 |
XRenderColor mask_c; |
903 |
|
904 |
mask_c.alpha = 0xffff; |
905 |
mask_c.red = |
906 |
mask_c.green = |
907 |
mask_c.blue = 0; |
908 |
XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1); |
909 |
|
910 |
mask_c.alpha = 0; |
911 |
mask_c.red = 0xffff - c.r; |
912 |
mask_c.green = 0xffff - c.g; |
913 |
mask_c.blue = 0xffff - c.b; |
914 |
XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1); |
915 |
|
916 |
XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height); |
917 |
|
918 |
if (shade > 100) |
919 |
{ |
920 |
mask_c.alpha = 0; |
921 |
mask_c.red = |
922 |
mask_c.green = |
923 |
mask_c.blue = 0xffff * (shade - 100) / 100; |
924 |
XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1); |
925 |
|
926 |
XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height); |
927 |
} |
928 |
|
929 |
ret = true; |
930 |
|
931 |
XRenderFreePicture (dpy, mask_pic); |
932 |
XRenderFreePicture (dpy, overlay_pic); |
933 |
XRenderFreePicture (dpy, back_pic); |
934 |
} |
935 |
# endif |
936 |
|
937 |
return ret; |
938 |
} |
939 |
|
940 |
/* |
941 |
* Builds a pixmap of the same size as the terminal window that contains |
942 |
* the tiled portion of the root pixmap that is supposed to be covered by |
943 |
* our window. |
944 |
*/ |
945 |
bool |
946 |
rxvt_term::make_transparency_pixmap () |
947 |
{ |
948 |
bool ret = false; |
949 |
|
950 |
/* root dimensions may change from call to call - but Display structure should |
951 |
* be always up-to-date, so let's use it : |
952 |
*/ |
953 |
int screen = display->screen; |
954 |
int root_depth = DefaultDepth (dpy, screen); |
955 |
int root_width = DisplayWidth (dpy, screen); |
956 |
int root_height = DisplayHeight (dpy, screen); |
957 |
unsigned int root_pmap_width, root_pmap_height; |
958 |
int window_width = szHint.width; |
959 |
int window_height = szHint.height; |
960 |
int sx, sy; |
961 |
XGCValues gcv; |
962 |
GC gc; |
963 |
|
964 |
sx = target_x; |
965 |
sy = target_y; |
966 |
|
967 |
/* check if we are outside of the visible part of the virtual screen : */ |
968 |
if (sx + window_width <= 0 || sy + window_height <= 0 |
969 |
|| sx >= root_width || sy >= root_height) |
970 |
return 0; |
971 |
|
972 |
// validate root pixmap and get its size |
973 |
if (root_pixmap != None) |
974 |
{ |
975 |
Window wdummy; |
976 |
int idummy; |
977 |
unsigned int udummy; |
978 |
|
979 |
allowedxerror = -1; |
980 |
|
981 |
if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy)) |
982 |
root_pixmap = None; |
983 |
|
984 |
allowedxerror = 0; |
985 |
} |
986 |
|
987 |
Pixmap recoded_root_pmap = root_pixmap; |
988 |
|
989 |
if (root_pixmap != None && root_depth != depth) |
990 |
{ |
991 |
#if XRENDER |
992 |
if (bg_flags & BG_HAS_RENDER) |
993 |
{ |
994 |
recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth); |
995 |
|
996 |
XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen)); |
997 |
Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0); |
998 |
|
999 |
XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual); |
1000 |
Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0); |
1001 |
|
1002 |
XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height); |
1003 |
|
1004 |
XRenderFreePicture (dpy, src); |
1005 |
XRenderFreePicture (dpy, dst); |
1006 |
} |
1007 |
else |
1008 |
#endif |
1009 |
recoded_root_pmap = None; |
1010 |
} |
1011 |
|
1012 |
if (recoded_root_pmap == None) |
1013 |
return 0; |
1014 |
|
1015 |
if (bg_pixmap == None |
1016 |
|| bg_pmap_width != window_width |
1017 |
|| bg_pmap_height != window_height) |
1018 |
{ |
1019 |
if (bg_pixmap) |
1020 |
XFreePixmap (dpy, bg_pixmap); |
1021 |
bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth); |
1022 |
bg_pmap_width = window_width; |
1023 |
bg_pmap_height = window_height; |
1024 |
} |
1025 |
|
1026 |
/* straightforward pixmap copy */ |
1027 |
while (sx < 0) sx += root_pmap_width; |
1028 |
while (sy < 0) sy += root_pmap_height; |
1029 |
|
1030 |
gcv.tile = recoded_root_pmap; |
1031 |
gcv.fill_style = FillTiled; |
1032 |
gcv.ts_x_origin = -sx; |
1033 |
gcv.ts_y_origin = -sy; |
1034 |
gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv); |
1035 |
|
1036 |
if (gc) |
1037 |
{ |
1038 |
XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height); |
1039 |
ret = true; |
1040 |
bool need_blur = h_blurRadius && v_blurRadius; |
1041 |
bool need_tint = shade != 100 || (bg_flags & BG_TINT_SET); |
1042 |
|
1043 |
if (!(bg_flags & BG_CLIENT_RENDER)) |
1044 |
{ |
1045 |
if (need_blur) |
1046 |
{ |
1047 |
if (blur_pixmap (bg_pixmap, window_width, window_height)) |
1048 |
need_blur = false; |
1049 |
} |
1050 |
if (need_tint) |
1051 |
{ |
1052 |
if (tint_pixmap (bg_pixmap, window_width, window_height)) |
1053 |
need_tint = false; |
1054 |
} |
1055 |
if (need_tint) |
1056 |
{ |
1057 |
XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap); |
1058 |
if (ximage) |
1059 |
{ |
1060 |
/* our own client-side tinting */ |
1061 |
tint_ximage (ximage); |
1062 |
|
1063 |
XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height); |
1064 |
XDestroyImage (ximage); |
1065 |
} |
1066 |
} |
1067 |
} /* server side rendering completed */ |
1068 |
|
1069 |
XFreeGC (dpy, gc); |
1070 |
} |
1071 |
|
1072 |
if (recoded_root_pmap != root_pixmap) |
1073 |
XFreePixmap (dpy, recoded_root_pmap); |
1074 |
|
1075 |
return ret; |
1076 |
} |
1077 |
|
1078 |
void |
1079 |
rxvt_term::bg_set_root_pixmap () |
1080 |
{ |
1081 |
Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]); |
1082 |
if (new_root_pixmap == None) |
1083 |
new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]); |
1084 |
|
1085 |
root_pixmap = new_root_pixmap; |
1086 |
} |
1087 |
# endif /* ENABLE_TRANSPARENCY */ |
1088 |
|
1089 |
bool |
1090 |
rxvt_term::bg_render () |
1091 |
{ |
1092 |
bg_invalidate (); |
1093 |
# ifdef ENABLE_TRANSPARENCY |
1094 |
if (bg_flags & BG_IS_TRANSPARENT) |
1095 |
{ |
1096 |
/* we need to re-generate transparency pixmap in that case ! */ |
1097 |
if (make_transparency_pixmap ()) |
1098 |
bg_flags |= BG_IS_VALID; |
1099 |
} |
1100 |
# endif |
1101 |
|
1102 |
# ifdef BG_IMAGE_FROM_FILE |
1103 |
if (bg_image.flags & IM_IS_SET) |
1104 |
{ |
1105 |
if (render_image (bg_image)) |
1106 |
bg_flags |= BG_IS_VALID; |
1107 |
} |
1108 |
# endif |
1109 |
|
1110 |
if (!(bg_flags & BG_IS_VALID)) |
1111 |
{ |
1112 |
if (bg_pixmap != None) |
1113 |
{ |
1114 |
XFreePixmap (dpy, bg_pixmap); |
1115 |
bg_pixmap = None; |
1116 |
} |
1117 |
} |
1118 |
|
1119 |
scr_recolour (false); |
1120 |
bg_flags |= BG_NEEDS_REFRESH; |
1121 |
|
1122 |
bg_valid_since = ev::now (); |
1123 |
|
1124 |
return true; |
1125 |
} |
1126 |
|
1127 |
void |
1128 |
rxvt_term::bg_init () |
1129 |
{ |
1130 |
#ifdef ENABLE_TRANSPARENCY |
1131 |
shade = 100; |
1132 |
#endif |
1133 |
|
1134 |
bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV); |
1135 |
#if XRENDER |
1136 |
int major, minor; |
1137 |
if (XRenderQueryVersion (dpy, &major, &minor)) |
1138 |
bg_flags |= BG_HAS_RENDER; |
1139 |
XFilters *filters = XRenderQueryFilters (dpy, vt); |
1140 |
if (filters) |
1141 |
{ |
1142 |
for (int i = 0; i < filters->nfilter; i++) |
1143 |
if (!strcmp (filters->filter[i], FilterConvolution)) |
1144 |
bg_flags |= BG_HAS_RENDER_CONV; |
1145 |
|
1146 |
XFree (filters); |
1147 |
} |
1148 |
#endif |
1149 |
} |
1150 |
|
1151 |
#endif /* HAVE_BG_PIXMAP */ |
1152 |
|
1153 |
#ifdef ENABLE_TRANSPARENCY |
1154 |
/* based on code from aterm-0.4.2 */ |
1155 |
|
1156 |
static inline void |
1157 |
fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high) |
1158 |
{ |
1159 |
for (int i = 0; i <= mask >> sh; i++) |
1160 |
{ |
1161 |
uint32_t tmp; |
1162 |
tmp = i * high; |
1163 |
tmp += (mask >> sh) * low; |
1164 |
lookup[i] = (tmp / 0xffff) << sh; |
1165 |
} |
1166 |
} |
1167 |
|
1168 |
void |
1169 |
rxvt_term::tint_ximage (XImage *ximage) |
1170 |
{ |
1171 |
unsigned int size_r, size_g, size_b; |
1172 |
int sh_r, sh_g, sh_b; |
1173 |
uint32_t mask_r, mask_g, mask_b; |
1174 |
uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b; |
1175 |
unsigned short low; |
1176 |
int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
1177 |
|
1178 |
if (visual->c_class != TrueColor || ximage->format != ZPixmap) return; |
1179 |
|
1180 |
/* for convenience */ |
1181 |
mask_r = visual->red_mask; |
1182 |
mask_g = visual->green_mask; |
1183 |
mask_b = visual->blue_mask; |
1184 |
|
1185 |
/* boring lookup table pre-initialization */ |
1186 |
sh_r = ecb_ctz32 (mask_r); |
1187 |
sh_g = ecb_ctz32 (mask_g); |
1188 |
sh_b = ecb_ctz32 (mask_b); |
1189 |
|
1190 |
size_r = mask_r >> sh_r; |
1191 |
size_g = mask_g >> sh_g; |
1192 |
size_b = mask_b >> sh_b; |
1193 |
|
1194 |
if (size_r++ > 255 || size_g++ > 255 || size_b++ > 255) |
1195 |
return; |
1196 |
|
1197 |
lookup = (uint32_t *)malloc (sizeof (uint32_t) * (size_r + size_g + size_b)); |
1198 |
lookup_r = lookup; |
1199 |
lookup_g = lookup + size_r; |
1200 |
lookup_b = lookup + size_r + size_g; |
1201 |
|
1202 |
rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC); |
1203 |
|
1204 |
if (bg_flags & BG_TINT_SET) |
1205 |
tint.get (c); |
1206 |
|
1207 |
/* prepare limits for color transformation (each channel is handled separately) */ |
1208 |
if (shade > 100) |
1209 |
{ |
1210 |
c.r = c.r * (200 - shade) / 100; |
1211 |
c.g = c.g * (200 - shade) / 100; |
1212 |
c.b = c.b * (200 - shade) / 100; |
1213 |
|
1214 |
low = 0xffff * (shade - 100) / 100; |
1215 |
} |
1216 |
else |
1217 |
{ |
1218 |
c.r = c.r * shade / 100; |
1219 |
c.g = c.g * shade / 100; |
1220 |
c.b = c.b * shade / 100; |
1221 |
|
1222 |
low = 0; |
1223 |
} |
1224 |
|
1225 |
/* fill our lookup tables */ |
1226 |
fill_lut (lookup_r, mask_r, sh_r, low, c.r); |
1227 |
fill_lut (lookup_g, mask_g, sh_g, low, c.g); |
1228 |
fill_lut (lookup_b, mask_b, sh_b, low, c.b); |
1229 |
|
1230 |
/* apply table to input image (replacing colors by newly calculated ones) */ |
1231 |
if (ximage->bits_per_pixel == 32 |
1232 |
&& ximage->byte_order == host_byte_order) |
1233 |
{ |
1234 |
char *line = ximage->data; |
1235 |
|
1236 |
for (int y = 0; y < ximage->height; y++) |
1237 |
{ |
1238 |
uint32_t *p = (uint32_t *)line; |
1239 |
for (int x = 0; x < ximage->width; x++) |
1240 |
{ |
1241 |
*p = lookup_r[(*p & mask_r) >> sh_r] | |
1242 |
lookup_g[(*p & mask_g) >> sh_g] | |
1243 |
lookup_b[(*p & mask_b) >> sh_b]; |
1244 |
p++; |
1245 |
} |
1246 |
line += ximage->bytes_per_line; |
1247 |
} |
1248 |
} |
1249 |
else |
1250 |
{ |
1251 |
for (int y = 0; y < ximage->height; y++) |
1252 |
for (int x = 0; x < ximage->width; x++) |
1253 |
{ |
1254 |
unsigned long pixel = XGetPixel (ximage, x, y); |
1255 |
pixel = lookup_r[(pixel & mask_r) >> sh_r] | |
1256 |
lookup_g[(pixel & mask_g) >> sh_g] | |
1257 |
lookup_b[(pixel & mask_b) >> sh_b]; |
1258 |
XPutPixel (ximage, x, y, pixel); |
1259 |
} |
1260 |
} |
1261 |
|
1262 |
free (lookup); |
1263 |
} |
1264 |
#endif /* ENABLE_TRANSPARENCY */ |