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Comparing rxvt-unicode/src/background.C (file contents):
Revision 1.213 by sf-exg, Sun May 13 21:12:01 2012 UTC vs.
Revision 1.250 by sf-exg, Sun Dec 30 12:06:33 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 ();
40# endif
70} 41}
71 42
72bool 43bool
73rxvt_term::bg_set_position (int x, int y) 44rxvt_term::bg_window_size_sensitive ()
74{ 45{
46# if BG_IMAGE_FROM_ROOT
47 if (option (Opt_transparent))
48 return true;
49# endif
75 50
76 if (target_x != x 51# if BG_IMAGE_FROM_FILE
77 || target_y != y) 52 if (fimage.img)
78 { 53 {
79 target_x = x; 54 if ((fimage.flags & IM_IS_SIZE_SENSITIVE)
80 target_y = y; 55 || fimage.img->w > szHint.width
56 || fimage.img->h > szHint.height)
81 return true; 57 return true;
82 } 58 }
59# endif
60
83 return false; 61 return false;
84} 62}
85 63
86bool 64bool
87rxvt_term::bg_window_size_sensitive () 65rxvt_term::bg_window_position_sensitive ()
88{ 66{
89# ifdef ENABLE_TRANSPARENCY 67# if BG_IMAGE_FROM_ROOT
90 if (bg_flags & BG_IS_TRANSPARENT) 68 if (option (Opt_transparent))
91 return true; 69 return true;
92# endif 70# endif
93 71
94# ifdef BG_IMAGE_FROM_FILE 72# if BG_IMAGE_FROM_FILE
95 if (bg_flags & BG_IS_FROM_FILE) 73 if (fimage.img)
96 { 74 {
97 if (bg_flags & BG_IS_SIZE_SENSITIVE) 75 if (fimage.flags & IM_ROOT_ALIGN)
98 return true; 76 return true;
99 } 77 }
100# endif 78# endif
101 79
102 return false; 80 return false;
103} 81}
104 82
105bool
106rxvt_term::bg_window_position_sensitive ()
107{
108# ifdef ENABLE_TRANSPARENCY
109 if (bg_flags & BG_IS_TRANSPARENT)
110 return true;
111# endif
112
113# ifdef BG_IMAGE_FROM_FILE 83# if BG_IMAGE_FROM_FILE
114 if (bg_flags & BG_IS_FROM_FILE)
115 {
116 if (bg_flags & BG_ROOT_ALIGN)
117 return true;
118 }
119# endif
120
121 return false;
122}
123
124# ifdef 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::get_image_geometry (rxvt_image &image, int &w, int &h, int &x, int &y)
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
310 w = h_scale * target_width / 100; 266 w = h_scale * parent_width / 100;
311 h = v_scale * target_height / 100; 267 h = v_scale * parent_height / 100;
312 268
313 if (bg_flags & BG_KEEP_ASPECT) 269 if (image.flags & IM_KEEP_ASPECT)
314 { 270 {
315 float scale = (float)w / image_width; 271 float scale = (float)w / image_width;
316 min_it (scale, (float)h / image_height); 272 min_it (scale, (float)h / image_height);
317 w = image_width * scale + 0.5; 273 w = image_width * scale + 0.5;
318 h = image_height * scale + 0.5; 274 h = image_height * scale + 0.5;
319 } 275 }
320 276
321 if (!w) w = image_width; 277 if (!w) w = image_width;
322 if (!h) h = image_height; 278 if (!h) h = image_height;
323 279
324 if (bg_flags & BG_ROOT_ALIGN) 280 if (image.flags & IM_ROOT_ALIGN)
325 { 281 {
326 x = -target_x; 282 x = -parent_x;
327 y = -target_y; 283 y = -parent_y;
328 } 284 }
329 else 285 else
330 { 286 {
331 x = make_align_position (h_align, target_width, w); 287 x = make_align_position (image.h_align, parent_width, w);
332 y = make_align_position (v_align, target_height, h); 288 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 *line;
352 int width_r, width_g, width_b, width_a;
353 int sh_r, sh_g, sh_b, sh_a;
354 uint32_t alpha_mask;
355 int rowstride;
356 int channels;
357 unsigned char *row;
358
359 if (visual->c_class != TrueColor)
360 return false;
361
362#if XRENDER
363 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
364 if (format)
365 alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;
366 else
367#endif
368 alpha_mask = 0;
369
370 width_r = ecb_popcount32 (visual->red_mask);
371 width_g = ecb_popcount32 (visual->green_mask);
372 width_b = ecb_popcount32 (visual->blue_mask);
373 width_a = ecb_popcount32 (alpha_mask);
374
375 if (width_r > 8 || width_g > 8 || width_b > 8 || width_a > 8)
376 return false;
377
378 sh_r = ecb_ctz32 (visual->red_mask);
379 sh_g = ecb_ctz32 (visual->green_mask);
380 sh_b = ecb_ctz32 (visual->blue_mask);
381 sh_a = ecb_ctz32 (alpha_mask);
382
383 if (width > 32767 || height > 32767)
384 return false;
385
386 ximage = XCreateImage (dpy, visual, depth, ZPixmap, 0, 0,
387 width, height, 32, 0);
388 if (!ximage)
389 return false;
390
391 if (height > INT_MAX / ximage->bytes_per_line
392 || !(ximage->data = (char *)malloc (height * ximage->bytes_per_line)))
393 { 289 }
394 XDestroyImage (ximage);
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 = ximage->data;
404
405 rgba c (0, 0, 0);
406
407 if (channels == 4 && alpha_mask == 0)
408 {
409 pix_colors[Color_bg].get (c);
410 c.r >>= 8;
411 c.g >>= 8;
412 c.b >>= 8;
413 }
414
415 for (int y = 0; y < height; y++)
416 {
417 for (int x = 0; x < width; x++)
418 {
419 unsigned char *pixel = row + x * channels;
420 uint32_t value;
421 unsigned char r, g, b, a;
422
423 if (channels == 4)
424 {
425 a = pixel[3];
426 r = (pixel[0] * a + c.r * (0xff - a)) / 0xff;
427 g = (pixel[1] * a + c.g * (0xff - a)) / 0xff;
428 b = (pixel[2] * a + c.b * (0xff - a)) / 0xff;
429 }
430 else
431 {
432 a = 0xff;
433 r = pixel[0];
434 g = pixel[1];
435 b = pixel[2];
436 }
437
438 value = ((r >> (8 - width_r)) << sh_r)
439 | ((g >> (8 - width_g)) << sh_g)
440 | ((b >> (8 - width_b)) << sh_b)
441 | ((a >> (8 - width_a)) << sh_a);
442
443 if (ximage->bits_per_pixel == 32)
444 ((uint32_t *)line)[x] = value;
445 else
446 XPutPixel (ximage, x, y, value);
447 }
448
449 row += rowstride;
450 line += ximage->bytes_per_line;
451 }
452
453 XPutImage (dpy, pixmap, gc, ximage, 0, 0, dst_x, dst_y, width, height);
454 XDestroyImage (ximage);
455 return true;
456} 290}
457 291
458bool 292bool
459rxvt_term::render_image (bool transparent) 293rxvt_term::render_image (rxvt_image &image)
460{ 294{
461 if (!pixbuf)
462 return false;
463
464 if (transparent
465 && !(bg_flags & BG_HAS_RENDER))
466 return false;
467
468 GdkPixbuf *result;
469
470 int image_width = gdk_pixbuf_get_width (pixbuf);
471 int image_height = gdk_pixbuf_get_height (pixbuf);
472
473 int target_width = szHint.width; 295 int parent_width = szHint.width;
474 int target_height = szHint.height; 296 int parent_height = szHint.height;
475 int new_pmap_width = target_width;
476 int new_pmap_height = target_height;
477 297
478 int x = 0; 298 int x = 0;
479 int y = 0; 299 int y = 0;
480 int w = 0; 300 int w = 0;
481 int h = 0; 301 int h = 0;
482 302
483 get_image_geometry (image_width, image_height, w, h, x, y); 303 get_image_geometry (image, w, h, x, y);
484 304
485 if (!(bg_flags & BG_ROOT_ALIGN) 305 if (!(image.flags & IM_ROOT_ALIGN)
486 && (x >= target_width 306 && (x >= parent_width
487 || y >= target_height 307 || y >= parent_height
488 || x + w <= 0 308 || x + w <= 0
489 || y + h <= 0)) 309 || y + h <= 0))
490 return false; 310 return false;
491 311
492 result = pixbuf; 312 rxvt_img *img = image.img->scale (w, h);
493 313
494 if (w != image_width 314 if (image.flags & IM_TILE)
495 || h != image_height) 315 img->repeat_mode (RepeatNormal);
496 {
497 result = gdk_pixbuf_scale_simple (pixbuf,
498 w, h,
499 GDK_INTERP_BILINEAR);
500 }
501
502 if (!result)
503 return false;
504
505 bool ret = false;
506
507 XGCValues gcv;
508 GC gc;
509 Pixmap root_pmap;
510
511 image_width = gdk_pixbuf_get_width (result);
512 image_height = gdk_pixbuf_get_height (result);
513
514 if (transparent)
515 {
516 root_pmap = bg_pixmap;
517 bg_pixmap = None;
518 }
519 else 316 else
520 { 317 img->repeat_mode (RepeatNone);
521 if (bg_flags & BG_TILE) 318 img->sub_rect (-x, -y, parent_width, parent_height)->replace (img);
522 {
523 new_pmap_width = min (image_width, target_width);
524 new_pmap_height = min (image_height, target_height);
525 }
526 }
527 319
528 if (bg_pixmap == None 320 if (bg_img)
529 || bg_pmap_width != new_pmap_width 321 img->draw (bg_img, PictOpOver, image.alpha * 1. / 0xffff);
530 || bg_pmap_height != new_pmap_height)
531 {
532 if (bg_pixmap)
533 XFreePixmap (dpy, bg_pixmap);
534 bg_pixmap = XCreatePixmap (dpy, vt, new_pmap_width, new_pmap_height, depth);
535 bg_pmap_width = new_pmap_width;
536 bg_pmap_height = new_pmap_height;
537 }
538 322
539 gcv.foreground = pix_colors[Color_bg];
540 gc = XCreateGC (dpy, vt, GCForeground, &gcv);
541
542 if (gc)
543 {
544 if (bg_flags & BG_TILE)
545 {
546 Pixmap tile = XCreatePixmap (dpy, vt, image_width, image_height, depth);
547 pixbuf_to_pixmap (result, tile, gc,
548 0, 0,
549 0, 0,
550 image_width, image_height);
551
552 gcv.tile = tile;
553 gcv.fill_style = FillTiled;
554 gcv.ts_x_origin = x;
555 gcv.ts_y_origin = y;
556 XChangeGC (dpy, gc, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
557
558 XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
559 XFreePixmap (dpy, tile);
560 }
561 else
562 {
563 int src_x, src_y, dst_x, dst_y;
564 int dst_width, dst_height;
565
566 src_x = make_clip_rectangle (x, image_width , new_pmap_width , dst_x, dst_width );
567 src_y = make_clip_rectangle (y, image_height, new_pmap_height, dst_y, dst_height);
568
569 if (dst_x > 0 || dst_y > 0
570 || dst_x + dst_width < new_pmap_width
571 || dst_y + dst_height < new_pmap_height)
572 XFillRectangle (dpy, bg_pixmap, gc, 0, 0, new_pmap_width, new_pmap_height);
573
574 if (dst_x < new_pmap_width && dst_y < new_pmap_height)
575 pixbuf_to_pixmap (result, bg_pixmap, gc,
576 src_x, src_y,
577 dst_x, dst_y,
578 dst_width, dst_height);
579 }
580
581#if XRENDER
582 if (transparent)
583 {
584 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual); 323 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
324 img->convert_format (format, pix_colors [Color_bg])->replace (img);
585 325
586 Picture src = XRenderCreatePicture (dpy, root_pmap, format, 0, 0); 326 delete bg_img;
327 bg_img = img;
587 328
588 Picture dst = XRenderCreatePicture (dpy, bg_pixmap, format, 0, 0);
589
590 Picture mask = create_xrender_mask (dpy, vt, False, False);
591
592 XRenderColor mask_c;
593
594 mask_c.alpha = 0x8000;
595 mask_c.red =
596 mask_c.green =
597 mask_c.blue = 0;
598 XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
599
600 XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, target_width, target_height);
601
602 XRenderFreePicture (dpy, src);
603 XRenderFreePicture (dpy, dst);
604 XRenderFreePicture (dpy, mask);
605 }
606#endif
607
608 XFreeGC (dpy, gc);
609
610 ret = true;
611 }
612
613 if (result != pixbuf)
614 g_object_unref (result);
615
616 if (transparent)
617 XFreePixmap (dpy, root_pmap);
618
619 return ret; 329 return true;
620} 330}
621# endif /* HAVE_PIXBUF */
622 331
623bool 332rxvt_image::rxvt_image ()
624rxvt_term::bg_set_file (const char *file) 333{
334 alpha = 0xffff;
335 flags = 0;
336 h_scale =
337 v_scale = defaultScale;
338 h_align =
339 v_align = defaultAlign;
340
341 img = 0;
342}
343
344void
345rxvt_image::set_file_geometry (rxvt_screen *s, const char *file)
625{ 346{
626 if (!file || !*file) 347 if (!file || !*file)
627 return false; 348 return;
628 349
629 bool ret = false;
630 const char *p = strchr (file, ';'); 350 const char *p = strchr (file, ';');
631 351
632 if (p) 352 if (p)
633 { 353 {
634 size_t len = p - file; 354 size_t len = p - file;
… …
636 memcpy (f, file, len); 356 memcpy (f, file, len);
637 f[len] = '\0'; 357 f[len] = '\0';
638 file = f; 358 file = f;
639 } 359 }
640 360
641# ifdef HAVE_PIXBUF 361 set_file (s, file);
642 GdkPixbuf *image = gdk_pixbuf_new_from_file (file, NULL); 362 alpha = 0x8000;
643 if (image) 363 set_geometry (p ? p + 1 : "");
644 { 364}
645 if (pixbuf)
646 g_object_unref (pixbuf);
647 pixbuf = image;
648 bg_flags |= BG_IS_FROM_FILE;
649 ret = true;
650 }
651# endif
652 365
653 if (ret) 366void
654 { 367rxvt_image::set_file (rxvt_screen *s, const char *file)
655 if (p) 368{
656 bg_set_geometry (p + 1); 369 rxvt_img *img2 = rxvt_img::new_from_file (s, file);
657 else 370 delete img;
658 bg_set_default_geometry (); 371 img = img2;
659 }
660
661 return ret;
662} 372}
663 373
664# endif /* BG_IMAGE_FROM_FILE */ 374# endif /* BG_IMAGE_FROM_FILE */
665 375
666# ifdef ENABLE_TRANSPARENCY
667bool 376bool
668rxvt_term::bg_set_blur (const char *geom) 377image_effects::set_blur (const char *geom)
669{ 378{
670 bool changed = false; 379 bool changed = false;
671 unsigned int hr, vr; 380 unsigned int hr, vr;
672 int junk; 381 int junk;
673 int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr); 382 int geom_flags = XParseGeometry (geom, &junk, &junk, &hr, &vr);
… …
694 403
695 return changed; 404 return changed;
696} 405}
697 406
698bool 407bool
699rxvt_term::bg_set_tint (rxvt_color &new_tint) 408image_effects::set_tint (const rxvt_color &new_tint)
700{ 409{
701 if (!(bg_flags & BG_TINT_SET) || tint != new_tint) 410 if (!tint_set || tint != new_tint)
702 { 411 {
703 tint = new_tint; 412 tint = new_tint;
704 bg_flags |= BG_TINT_SET; 413 tint_set = true;
705
706 rgba c;
707 tint.get (c);
708 if ((c.r <= 0x00ff || c.r >= 0xff00)
709 && (c.g <= 0x00ff || c.g >= 0xff00)
710 && (c.b <= 0x00ff || c.b >= 0xff00))
711 bg_flags |= BG_TINT_BITAND;
712 else
713 bg_flags &= ~BG_TINT_BITAND;
714 414
715 return true; 415 return true;
716 } 416 }
717 417
718 return false; 418 return false;
719} 419}
720 420
721bool 421bool
722rxvt_term::bg_set_shade (const char *shade_str) 422image_effects::set_shade (const char *shade_str)
723{ 423{
724 int new_shade = atoi (shade_str); 424 int new_shade = atoi (shade_str);
725 425
726 clamp_it (new_shade, -100, 200); 426 clamp_it (new_shade, -100, 200);
727 if (new_shade < 0) 427 if (new_shade < 0)
… …
734 } 434 }
735 435
736 return false; 436 return false;
737} 437}
738 438
739#if XRENDER 439# if BG_IMAGE_FROM_ROOT
740static void
741get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params)
742{
743 double sigma = radius / 2.0;
744 double scale = sqrt (2.0 * M_PI) * sigma;
745 double sum = 0.0;
746
747 for (int i = 0; i < width; i++)
748 {
749 double x = i - width / 2;
750 kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
751 sum += kernel[i];
752 }
753
754 params[0] = XDoubleToFixed (width);
755 params[1] = XDoubleToFixed (1);
756
757 for (int i = 0; i < width; i++)
758 params[i+2] = XDoubleToFixed (kernel[i] / sum);
759}
760#endif
761
762bool
763rxvt_term::blur_pixmap (Pixmap pixmap, int width, int height)
764{
765 bool ret = false;
766#if XRENDER
767 if (!(bg_flags & BG_HAS_RENDER_CONV))
768 return false;
769
770 int size = max (h_blurRadius, v_blurRadius) * 2 + 1;
771 double *kernel = (double *)malloc (size * sizeof (double));
772 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
773
774 XRenderPictureAttributes pa;
775 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
776
777 pa.repeat = RepeatPad;
778 Picture src = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
779 Pixmap tmp = XCreatePixmap (dpy, pixmap, width, height, depth);
780 Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);
781 XFreePixmap (dpy, tmp);
782
783 if (kernel && params)
784 {
785 size = h_blurRadius * 2 + 1;
786 get_gaussian_kernel (h_blurRadius, size, kernel, params);
787
788 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
789 XRenderComposite (dpy,
790 PictOpSrc,
791 src,
792 None,
793 dst,
794 0, 0,
795 0, 0,
796 0, 0,
797 width, height);
798
799 ::swap (src, dst);
800
801 size = v_blurRadius * 2 + 1;
802 get_gaussian_kernel (v_blurRadius, size, kernel, params);
803 ::swap (params[0], params[1]);
804
805 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
806 XRenderComposite (dpy,
807 PictOpSrc,
808 src,
809 None,
810 dst,
811 0, 0,
812 0, 0,
813 0, 0,
814 width, height);
815
816 ret = true;
817 }
818
819 free (kernel);
820 free (params);
821 XRenderFreePicture (dpy, src);
822 XRenderFreePicture (dpy, dst);
823#endif
824 return ret;
825}
826
827bool
828rxvt_term::tint_pixmap (Pixmap pixmap, int width, int height)
829{
830 bool ret = false;
831
832 if (shade == 100 && (bg_flags & BG_TINT_BITAND))
833 {
834 XGCValues gcv;
835 GC gc;
836
837 /* In this case we can tint image server-side getting significant
838 * performance improvements, as we eliminate XImage transfer
839 */
840 gcv.foreground = Pixel (tint);
841 gcv.function = GXand;
842 gcv.fill_style = FillSolid;
843 gc = XCreateGC (dpy, pixmap, GCFillStyle | GCForeground | GCFunction, &gcv);
844 if (gc)
845 {
846 XFillRectangle (dpy, pixmap, gc, 0, 0, width, height);
847 ret = true;
848 XFreeGC (dpy, gc);
849 }
850 }
851# if XRENDER
852 else if (bg_flags & BG_HAS_RENDER)
853 {
854 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
855
856 if (bg_flags & BG_TINT_SET)
857 tint.get (c);
858
859 if (shade <= 100)
860 {
861 c.r = c.r * shade / 100;
862 c.g = c.g * shade / 100;
863 c.b = c.b * shade / 100;
864 }
865 else
866 {
867 c.r = c.r * (200 - shade) / 100;
868 c.g = c.g * (200 - shade) / 100;
869 c.b = c.b * (200 - shade) / 100;
870 }
871
872 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
873
874 Picture back_pic = XRenderCreatePicture (dpy, pixmap, format, 0, 0);
875
876 Picture overlay_pic = create_xrender_mask (dpy, pixmap, True, False);
877
878 Picture mask_pic = create_xrender_mask (dpy, pixmap, True, True);
879
880 XRenderColor mask_c;
881
882 mask_c.alpha = 0xffff;
883 mask_c.red =
884 mask_c.green =
885 mask_c.blue = 0;
886 XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
887
888 mask_c.alpha = 0;
889 mask_c.red = 0xffff - c.r;
890 mask_c.green = 0xffff - c.g;
891 mask_c.blue = 0xffff - c.b;
892 XRenderFillRectangle (dpy, PictOpSrc, mask_pic, &mask_c, 0, 0, 1, 1);
893
894 XRenderComposite (dpy, PictOpOver, overlay_pic, mask_pic, back_pic, 0, 0, 0, 0, 0, 0, width, height);
895
896 if (shade > 100)
897 {
898 mask_c.alpha = 0;
899 mask_c.red =
900 mask_c.green =
901 mask_c.blue = 0xffff * (shade - 100) / 100;
902 XRenderFillRectangle (dpy, PictOpSrc, overlay_pic, &mask_c, 0, 0, 1, 1);
903
904 XRenderComposite (dpy, PictOpOver, overlay_pic, None, back_pic, 0, 0, 0, 0, 0, 0, width, height);
905 }
906
907 ret = true;
908
909 XRenderFreePicture (dpy, mask_pic);
910 XRenderFreePicture (dpy, overlay_pic);
911 XRenderFreePicture (dpy, back_pic);
912 }
913# endif
914
915 return ret;
916}
917
918/* 440/*
919 * Builds a pixmap of the same size as the terminal window that contains 441 * Builds a pixmap of the same size as the terminal window that contains
920 * the tiled portion of the root pixmap that is supposed to be covered by 442 * the tiled portion of the root pixmap that is supposed to be covered by
921 * our window. 443 * our window.
922 */ 444 */
923bool 445bool
924rxvt_term::make_transparency_pixmap () 446rxvt_term::render_root_image ()
925{ 447{
926 bool ret = false;
927
928 /* root dimensions may change from call to call - but Display structure should 448 /* root dimensions may change from call to call - but Display structure should
929 * be always up-to-date, so let's use it : 449 * be always up-to-date, so let's use it :
930 */ 450 */
931 int screen = display->screen; 451 int screen = display->screen;
932 int root_depth = DefaultDepth (dpy, screen);
933 int root_width = DisplayWidth (dpy, screen); 452 int root_width = DisplayWidth (dpy, screen);
934 int root_height = DisplayHeight (dpy, screen); 453 int root_height = DisplayHeight (dpy, screen);
935 unsigned int root_pmap_width, root_pmap_height;
936 int window_width = szHint.width; 454 int parent_width = szHint.width;
937 int window_height = szHint.height; 455 int parent_height = szHint.height;
938 int sx, sy; 456 int sx, sy;
939 XGCValues gcv;
940 GC gc;
941 457
942 sx = target_x; 458 sx = parent_x;
943 sy = target_y; 459 sy = parent_y;
460
461 if (!root_img)
462 return false;
944 463
945 /* check if we are outside of the visible part of the virtual screen : */ 464 /* check if we are outside of the visible part of the virtual screen : */
946 if (sx + window_width <= 0 || sy + window_height <= 0 465 if (sx + parent_width <= 0 || sy + parent_height <= 0
947 || sx >= root_width || sy >= root_height) 466 || sx >= root_width || sy >= root_height)
948 return 0; 467 return 0;
949 468
950 // validate root pixmap and get its size 469 while (sx < 0) sx += root_img->w;
951 if (root_pixmap != None) 470 while (sy < 0) sy += root_img->h;
952 {
953 Window wdummy;
954 int idummy;
955 unsigned int udummy;
956 471
957 allowedxerror = -1; 472 rxvt_img *img = root_img->sub_rect (sx, sy, parent_width, parent_height);
958 473
959 if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pmap_width, &root_pmap_height, &udummy, &udummy)) 474 if (root_effects.need_blur ())
960 root_pixmap = None; 475 img->blur (root_effects.h_blurRadius, root_effects.v_blurRadius)->replace (img);
961 476
962 allowedxerror = 0; 477 if (root_effects.need_tint ())
963 } 478 tint_image (img, root_effects.tint, root_effects.tint_set, root_effects.shade);
964 479
965 Pixmap recoded_root_pmap = root_pixmap;
966
967 if (root_pixmap != None && root_depth != depth)
968 {
969#if XRENDER
970 if (bg_flags & BG_HAS_RENDER)
971 {
972 recoded_root_pmap = XCreatePixmap (dpy, vt, root_pmap_width, root_pmap_height, depth);
973
974 XRenderPictFormat *src_format = XRenderFindVisualFormat (dpy, DefaultVisual (dpy, screen));
975 Picture src = XRenderCreatePicture (dpy, root_pixmap, src_format, 0, 0);
976
977 XRenderPictFormat *dst_format = XRenderFindVisualFormat (dpy, visual); 480 XRenderPictFormat *format = XRenderFindVisualFormat (dpy, visual);
978 Picture dst = XRenderCreatePicture (dpy, recoded_root_pmap, dst_format, 0, 0); 481 img->convert_format (format, pix_colors [Color_bg])->replace (img);
979 482
980 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, root_pmap_width, root_pmap_height); 483 delete bg_img;
484 bg_img = img;
981 485
982 XRenderFreePicture (dpy, src);
983 XRenderFreePicture (dpy, dst);
984 }
985 else
986#endif
987 recoded_root_pmap = None;
988 }
989
990 if (recoded_root_pmap == None)
991 return 0;
992
993 if (bg_pixmap == None
994 || bg_pmap_width != window_width
995 || bg_pmap_height != window_height)
996 {
997 if (bg_pixmap)
998 XFreePixmap (dpy, bg_pixmap);
999 bg_pixmap = XCreatePixmap (dpy, vt, window_width, window_height, depth);
1000 bg_pmap_width = window_width;
1001 bg_pmap_height = window_height;
1002 }
1003
1004 /* straightforward pixmap copy */
1005 while (sx < 0) sx += root_pmap_width;
1006 while (sy < 0) sy += root_pmap_height;
1007
1008 gcv.tile = recoded_root_pmap;
1009 gcv.fill_style = FillTiled;
1010 gcv.ts_x_origin = -sx;
1011 gcv.ts_y_origin = -sy;
1012 gc = XCreateGC (dpy, vt, GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin, &gcv);
1013
1014 if (gc)
1015 {
1016 XFillRectangle (dpy, bg_pixmap, gc, 0, 0, window_width, window_height);
1017 ret = true;
1018 bool need_blur = h_blurRadius && v_blurRadius;
1019 bool need_tint = shade != 100 || (bg_flags & BG_TINT_SET);
1020
1021 if (!(bg_flags & BG_CLIENT_RENDER))
1022 {
1023 if (need_blur)
1024 {
1025 if (blur_pixmap (bg_pixmap, window_width, window_height))
1026 need_blur = false;
1027 }
1028 if (need_tint)
1029 {
1030 if (tint_pixmap (bg_pixmap, window_width, window_height))
1031 need_tint = false;
1032 }
1033 if (need_tint)
1034 {
1035 XImage *ximage = XGetImage (dpy, bg_pixmap, 0, 0, bg_pmap_width, bg_pmap_height, AllPlanes, ZPixmap);
1036 if (ximage)
1037 {
1038 /* our own client-side tinting */
1039 tint_ximage (ximage);
1040
1041 XPutImage (dpy, bg_pixmap, gc, ximage, 0, 0, 0, 0, ximage->width, ximage->height);
1042 XDestroyImage (ximage);
1043 }
1044 }
1045 } /* server side rendering completed */
1046
1047 XFreeGC (dpy, gc);
1048 }
1049
1050 if (recoded_root_pmap != root_pixmap)
1051 XFreePixmap (dpy, recoded_root_pmap);
1052
1053 return ret; 486 return true;
1054} 487}
1055 488
1056void 489void
1057rxvt_term::bg_set_root_pixmap () 490rxvt_term::bg_set_root_pixmap ()
1058{ 491{
1059 Pixmap new_root_pixmap = get_pixmap_property (xa[XA_XROOTPMAP_ID]); 492 delete root_img;
1060 if (new_root_pixmap == None) 493 root_img = rxvt_img::new_from_root (this);
1061 new_root_pixmap = get_pixmap_property (xa[XA_ESETROOT_PMAP_ID]);
1062
1063 root_pixmap = new_root_pixmap;
1064} 494}
1065# endif /* ENABLE_TRANSPARENCY */ 495# endif /* BG_IMAGE_FROM_ROOT */
1066 496
1067bool 497void
1068rxvt_term::bg_render () 498rxvt_term::bg_render ()
1069{ 499{
1070 bool transparent = false; 500 if (bg_flags & BG_INHIBIT_RENDER)
501 return;
1071 502
1072 bg_invalidate (); 503 delete bg_img;
1073# ifdef ENABLE_TRANSPARENCY 504 bg_img = 0;
1074 if (bg_flags & BG_IS_TRANSPARENT) 505 bg_flags &= BG_INHIBIT_RENDER;
506
507# if BG_IMAGE_FROM_ROOT
508 if (option (Opt_transparent))
1075 { 509 {
1076 /* we need to re-generate transparency pixmap in that case ! */ 510 /* we need to re-generate transparency pixmap in that case ! */
1077 transparent = make_transparency_pixmap (); 511 if (render_root_image ())
1078 if (transparent) 512 bg_flags |= BG_IS_VALID | BG_IS_TRANSPARENT;
513 }
514# endif
515
516# if BG_IMAGE_FROM_FILE
517 if (fimage.img)
518 {
519 if (render_image (fimage))
1079 bg_flags |= BG_IS_VALID; 520 bg_flags |= BG_IS_VALID;
1080 } 521 }
1081# endif 522# endif
1082
1083# ifdef BG_IMAGE_FROM_FILE
1084 if (bg_flags & BG_IS_FROM_FILE)
1085 {
1086 if (render_image (transparent))
1087 bg_flags |= BG_IS_VALID;
1088 }
1089# endif
1090
1091 if (!(bg_flags & BG_IS_VALID))
1092 {
1093 if (bg_pixmap != None)
1094 {
1095 XFreePixmap (dpy, bg_pixmap);
1096 bg_pixmap = None;
1097 }
1098 }
1099 523
1100 scr_recolour (false); 524 scr_recolour (false);
1101 bg_flags |= BG_NEEDS_REFRESH; 525 bg_flags |= BG_NEEDS_REFRESH;
1102 526
1103 bg_valid_since = ev::now (); 527 bg_valid_since = ev::now ();
1104
1105 return true;
1106} 528}
1107 529
1108void 530void
1109rxvt_term::bg_init () 531rxvt_term::bg_init ()
1110{ 532{
1111#ifdef ENABLE_TRANSPARENCY 533#if BG_IMAGE_FROM_ROOT
1112 shade = 100; 534 if (option (Opt_transparent))
535 {
536 if (rs [Rs_blurradius])
537 root_effects.set_blur (rs [Rs_blurradius]);
538
539 if (ISSET_PIXCOLOR (Color_tint))
540 root_effects.set_tint (pix_colors_focused [Color_tint]);
541
542 if (rs [Rs_shade])
543 root_effects.set_shade (rs [Rs_shade]);
544
545 bg_set_root_pixmap ();
546 XSelectInput (dpy, display->root, PropertyChangeMask);
547 rootwin_ev.start (display, display->root);
548 }
1113#endif 549#endif
1114 550
1115 bg_flags &= ~(BG_HAS_RENDER | BG_HAS_RENDER_CONV); 551#if BG_IMAGE_FROM_FILE
1116#if XRENDER 552 if (rs[Rs_backgroundPixmap])
1117 int major, minor;
1118 if (XRenderQueryVersion (dpy, &major, &minor))
1119 bg_flags |= BG_HAS_RENDER;
1120 XFilters *filters = XRenderQueryFilters (dpy, vt);
1121 if (filters)
1122 { 553 {
1123 for (int i = 0; i < filters->nfilter; i++) 554 fimage.set_file_geometry (this, rs[Rs_backgroundPixmap]);
1124 if (!strcmp (filters->filter[i], FilterConvolution)) 555 if (!bg_window_position_sensitive ())
1125 bg_flags |= BG_HAS_RENDER_CONV; 556 update_background ();
1126
1127 XFree (filters);
1128 } 557 }
1129#endif 558#endif
1130} 559}
1131 560
1132#endif /* HAVE_BG_PIXMAP */
1133
1134#ifdef ENABLE_TRANSPARENCY
1135/* based on code from aterm-0.4.2 */
1136
1137static inline void
1138fill_lut (uint32_t *lookup, uint32_t mask, int sh, unsigned short low, unsigned short high)
1139{
1140 for (int i = 0; i <= mask >> sh; i++)
1141 {
1142 uint32_t tmp;
1143 tmp = i * high;
1144 tmp += (mask >> sh) * low;
1145 lookup[i] = (tmp / 0xffff) << sh;
1146 }
1147}
1148
1149void 561void
1150rxvt_term::tint_ximage (XImage *ximage) 562rxvt_term::tint_image (rxvt_img *img, rxvt_color &tint, bool tint_set, int shade)
1151{ 563{
1152 unsigned int size_r, size_g, size_b;
1153 int sh_r, sh_g, sh_b;
1154 uint32_t mask_r, mask_g, mask_b;
1155 uint32_t *lookup, *lookup_r, *lookup_g, *lookup_b;
1156 unsigned short low;
1157 int host_byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
1158
1159 if (visual->c_class != TrueColor || ximage->format != ZPixmap) return;
1160
1161 /* for convenience */
1162 mask_r = visual->red_mask;
1163 mask_g = visual->green_mask;
1164 mask_b = visual->blue_mask;
1165
1166 /* boring lookup table pre-initialization */
1167 sh_r = ecb_ctz32 (mask_r);
1168 sh_g = ecb_ctz32 (mask_g);
1169 sh_b = ecb_ctz32 (mask_b);
1170
1171 size_r = mask_r >> sh_r;
1172 size_g = mask_g >> sh_g;
1173 size_b = mask_b >> sh_b;
1174
1175 if (size_r++ > 255 || size_g++ > 255 || size_b++ > 255)
1176 return;
1177
1178 lookup = (uint32_t *)malloc (sizeof (uint32_t) * (size_r + size_g + size_b));
1179 lookup_r = lookup;
1180 lookup_g = lookup + size_r;
1181 lookup_b = lookup + size_r + size_g;
1182
1183 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC); 564 rgba c (rgba::MAX_CC, rgba::MAX_CC, rgba::MAX_CC);
1184 565
1185 if (bg_flags & BG_TINT_SET) 566 if (tint_set)
1186 tint.get (c); 567 tint.get (c);
1187 568
1188 /* prepare limits for color transformation (each channel is handled separately) */
1189 if (shade > 100) 569 if (shade > 100)
1190 { 570 {
1191 c.r = c.r * (200 - shade) / 100; 571 c.r = c.r * (200 - shade) / 100;
1192 c.g = c.g * (200 - shade) / 100; 572 c.g = c.g * (200 - shade) / 100;
1193 c.b = c.b * (200 - shade) / 100; 573 c.b = c.b * (200 - shade) / 100;
1194
1195 low = 0xffff * (shade - 100) / 100;
1196 } 574 }
1197 else 575 else
1198 { 576 {
1199 c.r = c.r * shade / 100; 577 c.r = c.r * shade / 100;
1200 c.g = c.g * shade / 100; 578 c.g = c.g * shade / 100;
1201 c.b = c.b * shade / 100; 579 c.b = c.b * shade / 100;
1202
1203 low = 0;
1204 }
1205
1206 /* fill our lookup tables */
1207 fill_lut (lookup_r, mask_r, sh_r, low, c.r);
1208 fill_lut (lookup_g, mask_g, sh_g, low, c.g);
1209 fill_lut (lookup_b, mask_b, sh_b, low, c.b);
1210
1211 /* apply table to input image (replacing colors by newly calculated ones) */
1212 if (ximage->bits_per_pixel == 32
1213 && ximage->byte_order == host_byte_order)
1214 { 580 }
1215 char *line = ximage->data;
1216 581
1217 for (int y = 0; y < ximage->height; y++) 582 img->contrast (c.r, c.g, c.b, c.a);
1218 { 583
1219 uint32_t *p = (uint32_t *)line; 584 if (shade > 100)
1220 for (int x = 0; x < ximage->width; x++)
1221 {
1222 *p = lookup_r[(*p & mask_r) >> sh_r] |
1223 lookup_g[(*p & mask_g) >> sh_g] |
1224 lookup_b[(*p & mask_b) >> sh_b];
1225 p++;
1226 }
1227 line += ximage->bytes_per_line;
1228 }
1229 } 585 {
1230 else 586 c.a = 0xffff;
587 c.r =
588 c.g =
589 c.b = 0xffff * (shade - 100) / 100;
590 img->brightness (c.r, c.g, c.b, c.a);
1231 { 591 }
1232 for (int y = 0; y < ximage->height; y++)
1233 for (int x = 0; x < ximage->width; x++)
1234 {
1235 unsigned long pixel = XGetPixel (ximage, x, y);
1236 pixel = lookup_r[(pixel & mask_r) >> sh_r] |
1237 lookup_g[(pixel & mask_g) >> sh_g] |
1238 lookup_b[(pixel & mask_b) >> sh_b];
1239 XPutPixel (ximage, x, y, pixel);
1240 }
1241 }
1242
1243 free (lookup);
1244} 592}
1245#endif /* ENABLE_TRANSPARENCY */ 593
594#endif /* HAVE_BG_PIXMAP */

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