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Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.13 by root, Mon Jun 4 15:30:41 2012 UTC vs.
Revision 1.37 by root, Thu Jun 7 09:25:23 2012 UTC

2#include "../config.h" 2#include "../config.h"
3#include "rxvt.h" 3#include "rxvt.h"
4 4
5#if HAVE_IMG 5#if HAVE_IMG
6 6
7#define float_to_component(d) ((d) * 65535.99)
8
9rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height) 7rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height)
10: s(screen), w(width), h(height), format(format), shared(false) 8: s(screen), x(x), y(y), w(width), h(height), format(format), repeat(RepeatNormal),
9 pm(0), ref(0)
11{ 10{
12 pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth);
13} 11}
14 12
13rxvt_img::rxvt_img (const rxvt_img &img)
14: s(img.s), x(img.x), y(img.y), w(img.w), h(img.h), format(img.format), repeat(img.repeat), pm(img.pm), ref(img.ref)
15{
16 ++ref->cnt;
17}
18
19#if 0
15rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height, Pixmap pixmap) 20rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height, Pixmap pixmap)
16: s(screen), pm(pixmap), w(width), h(height), format(format), shared(false) 21: s(screen), x(0), y(0), w(width), h(height), format(format), repeat(RepeatNormal), shared(false), pm(pixmap)
17{ 22{
23}
24#endif
25
26rxvt_img *
27rxvt_img::new_from_root (rxvt_screen *s)
28{
29 Display *dpy = s->display->dpy;
30 unsigned int root_pm_w, root_pm_h;
31 Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_XROOTPMAP_ID]);
32 if (root_pixmap == None)
33 root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_ESETROOT_PMAP_ID]);
34
35 if (root_pixmap == None)
36 return 0;
37
38 Window wdummy;
39 int idummy;
40 unsigned int udummy;
41
42 if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pm_w, &root_pm_h, &udummy, &udummy))
43 return 0;
44
45 rxvt_img *img = new rxvt_img (
46 s,
47 XRenderFindVisualFormat (dpy, DefaultVisual (dpy, s->display->screen)),
48 0,
49 0,
50 root_pm_w,
51 root_pm_h
52 );
53
54 img->pm = root_pixmap;
55 img->ref = new pixref (root_pm_w, root_pm_h);
56 img->ref->ours = false;
57
58 return img;
18} 59}
19 60
20rxvt_img * 61rxvt_img *
21rxvt_img::new_from_file (rxvt_screen *s, const char *filename) 62rxvt_img::new_from_file (rxvt_screen *s, const char *filename)
22{ 63{
27 rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message); 68 rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message);
28 69
29 rxvt_img *img = new rxvt_img ( 70 rxvt_img *img = new rxvt_img (
30 s, 71 s,
31 XRenderFindStandardFormat (s->display->dpy, gdk_pixbuf_get_has_alpha (pb) ? PictStandardARGB32 : PictStandardRGB24), 72 XRenderFindStandardFormat (s->display->dpy, gdk_pixbuf_get_has_alpha (pb) ? PictStandardARGB32 : PictStandardRGB24),
73 0,
74 0,
32 gdk_pixbuf_get_width (pb), 75 gdk_pixbuf_get_width (pb),
33 gdk_pixbuf_get_height (pb) 76 gdk_pixbuf_get_height (pb)
34 ); 77 );
35 78 img->alloc ();
36 img->render (pb, 0, 0, img->w, img->h, 0, 0); 79 img->render_pixbuf (pb, 0, 0, img->w, img->h, 0, 0);
37 80
81 g_object_unref (pb);
82
83 return img;
84}
85
86void
87rxvt_img::destroy ()
88{
89 if (--ref->cnt)
38 return img; 90 return;
91
92 if (pm && ref->ours)
93 XFreePixmap (s->display->dpy, pm);
94
95 delete ref;
39} 96}
40 97
41rxvt_img::~rxvt_img () 98rxvt_img::~rxvt_img ()
42{ 99{
43 if (!shared) 100 destroy ();
44 XFreePixmap (s->display->dpy, pm); 101}
102
103void
104rxvt_img::alloc ()
105{
106 pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth);
107 ref = new pixref (w, h);
108}
109
110Picture
111rxvt_img::src_picture ()
112{
113 Display *dpy = s->display->dpy;
114
115 XRenderPictureAttributes pa;
116 pa.repeat = repeat;
117 Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
118
119 return pic;
45} 120}
46 121
47void 122void
48rxvt_img::unshare () 123rxvt_img::unshare ()
49{ 124{
50 if (!shared) 125 if (ref->cnt == 1 && ref->ours)
51 return; 126 return;
52 127
53 rxvt_img *img = clone (); 128 //TODO: maybe should reify instead
129 Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth);
130 GC gc = XCreateGC (s->display->dpy, pm, 0, 0);
131 XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0);
132 XFreeGC (s->display->dpy, gc);
54 133
55 ::swap (pm , img->pm); 134 destroy ();
56 ::swap (shared, img->shared);
57 135
58 delete img; 136 pm = pm2;
137 ref = new pixref (ref->w, ref->h);
59} 138}
60 139
61void 140void
62rxvt_img::fill (const rxvt_color &c) 141rxvt_img::fill (const rxvt_color &c)
63{ 142{
87 166
88 for (int i = 0; i < width; i++) 167 for (int i = 0; i < width; i++)
89 params[i+2] = XDoubleToFixed (kernel[i] / sum); 168 params[i+2] = XDoubleToFixed (kernel[i] / sum);
90} 169}
91 170
92void 171rxvt_img *
93rxvt_img::blur (int rh, int rv) 172rxvt_img::blur (int rh, int rv)
94{ 173{
95 if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) 174 if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV))
96 return; 175 return clone ();
97 176
98 Display *dpy = s->display->dpy; 177 Display *dpy = s->display->dpy;
99 int size = max (rh, rv) * 2 + 1; 178 int size = max (rh, rv) * 2 + 1;
100 double *kernel = (double *)malloc (size * sizeof (double)); 179 double *kernel = (double *)malloc (size * sizeof (double));
101 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); 180 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
181 rxvt_img *img = new rxvt_img (s, format, x, y, w, h);
182 img->alloc ();
183
184 Picture src = src_picture ();
102 185
103 XRenderPictureAttributes pa; 186 XRenderPictureAttributes pa;
104
105 pa.repeat = RepeatPad; 187 pa.repeat = RepeatPad;
106 Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); 188 Picture dst = XRenderCreatePicture (dpy, img->pm, format, CPRepeat, &pa);
189
107 Pixmap tmp = XCreatePixmap (dpy, pm, w, h, format->depth); 190 Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth);
108 Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa); 191 Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa);
109 XFreePixmap (dpy, tmp); 192 XFreePixmap (dpy, tmp_pm);
110 193
111 if (kernel && params) 194 if (kernel && params)
112 { 195 {
113 size = rh * 2 + 1; 196 size = rh * 2 + 1;
114 get_gaussian_kernel (rh, size, kernel, params); 197 get_gaussian_kernel (rh, size, kernel, params);
116 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); 199 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
117 XRenderComposite (dpy, 200 XRenderComposite (dpy,
118 PictOpSrc, 201 PictOpSrc,
119 src, 202 src,
120 None, 203 None,
121 dst, 204 tmp,
122 0, 0, 205 0, 0,
123 0, 0, 206 0, 0,
124 0, 0, 207 0, 0,
125 w, h); 208 w, h);
126 209
127 ::swap (src, dst);
128
129 size = rv * 2 + 1; 210 size = rv * 2 + 1;
130 get_gaussian_kernel (rv, size, kernel, params); 211 get_gaussian_kernel (rv, size, kernel, params);
131 ::swap (params[0], params[1]); 212 ::swap (params[0], params[1]);
132 213
133 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); 214 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
134 XRenderComposite (dpy, 215 XRenderComposite (dpy,
135 PictOpSrc, 216 PictOpSrc,
136 src, 217 tmp,
137 None, 218 None,
138 dst, 219 dst,
139 0, 0, 220 0, 0,
140 0, 0, 221 0, 0,
141 0, 0, 222 0, 0,
144 225
145 free (kernel); 226 free (kernel);
146 free (params); 227 free (params);
147 XRenderFreePicture (dpy, src); 228 XRenderFreePicture (dpy, src);
148 XRenderFreePicture (dpy, dst); 229 XRenderFreePicture (dpy, dst);
230 XRenderFreePicture (dpy, tmp);
231
232 return img;
149} 233}
150 234
151static Picture 235static Picture
152create_xrender_mask (Display *dpy, Drawable drawable, Bool argb) 236create_xrender_mask (Display *dpy, Drawable drawable, Bool argb)
153{ 237{
162 246
163 return mask; 247 return mask;
164} 248}
165 249
166void 250void
167rxvt_img::brightness (double r, double g, double b, double a) 251rxvt_img::brightness (unsigned short r, unsigned short g, unsigned short b, unsigned short a)
168{ 252{
169 Display *dpy = s->display->dpy; 253 Display *dpy = s->display->dpy;
170 Picture src = create_xrender_mask (dpy, pm, True); 254 Picture src = create_xrender_mask (dpy, pm, True);
171 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); 255 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
172 256
173 XRenderColor mask_c; 257 XRenderColor mask_c;
174 mask_c.red = float_to_component (r); 258 mask_c.red = r;
175 mask_c.green = float_to_component (g); 259 mask_c.green = g;
176 mask_c.blue = float_to_component (b); 260 mask_c.blue = b;
177 mask_c.alpha = float_to_component (a); 261 mask_c.alpha = a;
178 XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); 262 XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1);
179 263
180 XRenderComposite (dpy, PictOpAdd, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); 264 XRenderComposite (dpy, PictOpAdd, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
265
266 XRenderFreePicture (dpy, src);
267 XRenderFreePicture (dpy, dst);
181} 268}
182 269
183void 270void
184rxvt_img::contrast (double r, double g, double b, double a) 271rxvt_img::contrast (unsigned short r, unsigned short g, unsigned short b, unsigned short a)
185{ 272{
186 if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL)) 273 if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL))
187 return; 274 return;
188 275
189 Display *dpy = s->display->dpy; 276 Display *dpy = s->display->dpy;
190 Picture src = create_xrender_mask (dpy, pm, True); 277 Picture src = create_xrender_mask (dpy, pm, True);
191 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); 278 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
192 279
193 XRenderColor mask_c; 280 XRenderColor mask_c;
194 mask_c.red = float_to_component (r); 281 mask_c.red = r;
195 mask_c.green = float_to_component (g); 282 mask_c.green = g;
196 mask_c.blue = float_to_component (b); 283 mask_c.blue = b;
197 mask_c.alpha = float_to_component (a); 284 mask_c.alpha = a;
198 XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); 285 XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1);
199 286
200 XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); 287 XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
201}
202 288
203void 289 XRenderFreePicture (dpy, src);
290 XRenderFreePicture (dpy, dst);
291}
292
293bool
204rxvt_img::render (GdkPixbuf *pixbuf, int src_x, int src_y, int width, int height, int dst_x, int dst_y) 294rxvt_img::render_pixbuf (GdkPixbuf *pixbuf, int src_x, int src_y, int width, int height, int dst_x, int dst_y)
205{ 295{
206 //TODO 296 Display *dpy = s->display->dpy;
297
298 if (s->visual->c_class != TrueColor)
299 return false;
300
301 uint32_t red_mask, green_mask, blue_mask, alpha_mask;
302
303 red_mask = (uint32_t)format->direct.redMask << format->direct.red;
304 green_mask = (uint32_t)format->direct.greenMask << format->direct.green;
305 blue_mask = (uint32_t)format->direct.blueMask << format->direct.blue;
306 alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;
307
308 int width_r = ecb_popcount32 (red_mask);
309 int width_g = ecb_popcount32 (green_mask);
310 int width_b = ecb_popcount32 (blue_mask);
311 int width_a = ecb_popcount32 (alpha_mask);
312
313 if (width_r > 8 || width_g > 8 || width_b > 8 || width_a > 8)
314 return false;
315
316 int sh_r = ecb_ctz32 (red_mask);
317 int sh_g = ecb_ctz32 (green_mask);
318 int sh_b = ecb_ctz32 (blue_mask);
319 int sh_a = ecb_ctz32 (alpha_mask);
320
321 if (width > 32767 || height > 32767)
322 return false;
323
324 XImage *ximage = XCreateImage (dpy, s->visual, format->depth, ZPixmap, 0, 0,
325 width, height, 32, 0);
326 if (!ximage)
327 return false;
328
329 if (height > INT_MAX / ximage->bytes_per_line
330 || !(ximage->data = (char *)malloc (height * ximage->bytes_per_line)))
331 {
332 XDestroyImage (ximage);
333 return false;
334 }
335
336 GC gc = XCreateGC (dpy, pm, 0, 0);
337
338 ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
339
340 int rowstride = gdk_pixbuf_get_rowstride (pixbuf);
341 int channels = gdk_pixbuf_get_n_channels (pixbuf);
342 unsigned char *row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
343 char *line = ximage->data;
344
345 for (int y = 0; y < height; y++)
346 {
347 for (int x = 0; x < width; x++)
348 {
349 unsigned char *pixel = row + x * channels;
350 uint32_t value;
351 unsigned char r, g, b, a;
352
353 if (channels == 4)
354 {
355 a = pixel[3];
356 r = pixel[0] * a / 0xff;
357 g = pixel[1] * a / 0xff;
358 b = pixel[2] * a / 0xff;
359 }
360 else
361 {
362 a = 0xff;
363 r = pixel[0];
364 g = pixel[1];
365 b = pixel[2];
366 }
367
368 value = ((r >> (8 - width_r)) << sh_r)
369 | ((g >> (8 - width_g)) << sh_g)
370 | ((b >> (8 - width_b)) << sh_b)
371 | ((a >> (8 - width_a)) << sh_a);
372
373 if (ximage->bits_per_pixel == 32)
374 ((uint32_t *)line)[x] = value;
375 else
376 XPutPixel (ximage, x, y, value);
377 }
378
379 row += rowstride;
380 line += ximage->bytes_per_line;
381 }
382
383 XPutImage (dpy, pm, gc, ximage, 0, 0, dst_x, dst_y, width, height);
384 XDestroyImage (ximage);
385 XFreeGC (dpy, gc);
386
387 return true;
207} 388}
208 389
209rxvt_img * 390rxvt_img *
210rxvt_img::clone () 391rxvt_img::clone ()
211{ 392{
212 GC gc = XCreateGC (s->display->dpy, pm, 0, 0); 393 return new rxvt_img (*this);
213 Pixmap pm2 = XCreatePixmap (s->display->dpy, pm, w, h, format->depth);
214 XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, w, h, 0, 0);
215 XFreeGC (s->display->dpy, gc);
216 return new rxvt_img (s, format, w, h, pm2);
217} 394}
218 395
219rxvt_img * 396rxvt_img *
397rxvt_img::reify ()
398{
399 if (x == 0 && y == 0 && w == ref->w && h == ref->h)
400 return clone ();
401
402 rxvt_img *img = new rxvt_img (s, format, 0, 0, w, h);
403 img->alloc ();
404
405 Display *dpy = s->display->dpy;
406
407 Picture src = src_picture ();
408 Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
409
410 XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h);
411
412 XRenderFreePicture (dpy, src);
413 XRenderFreePicture (dpy, dst);
414
415 return img;
416}
417
418rxvt_img *
419rxvt_img::sub_rect (int x, int y, int width, int height)
420{
421 rxvt_img *img = clone ();
422
423 img->x += x;
424 img->y += y;
425
426 if (w != width || h != height)
427 {
428 img->w = width;
429 img->h = height;
430
431 img->reify ();
432 }
433
434 return img;
435}
436
437rxvt_img *
220rxvt_img::transform (int new_width, int new_height, int repeat, double matrix[9]) 438rxvt_img::transform (int new_width, int new_height, double matrix[9])
221{ 439{
222 rxvt_img *img = new rxvt_img (s, format, new_width, new_height); 440 rxvt_img *img = new rxvt_img (s, format, 0, 0, new_width, new_height);
441 img->alloc ();
223 442
224 Display *dpy = s->display->dpy; 443 Display *dpy = s->display->dpy;
225 XRenderPictureAttributes pa; 444 Picture src = src_picture ();
226 pa.repeat = repeat;
227 Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
228 Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); 445 Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
229 446
230 XTransform xfrm; 447 XTransform xfrm;
231 448
232 for (int i = 0; i < 3; ++i) 449 for (int i = 0; i < 3; ++i)
233 for (int j = 0; j < 3; ++j) 450 for (int j = 0; j < 3; ++j)
234 xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]); 451 xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);
235 452
453 xfrm.matrix [0][2] += XDoubleToFixed (x);//TODO
454 xfrm.matrix [0][3] += XDoubleToFixed (y);
455
456 XRenderSetPictureFilter (dpy, src, "good", 0, 0);
236 XRenderSetPictureTransform (dpy, src, &xfrm); 457 XRenderSetPictureTransform (dpy, src, &xfrm);
237 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height); 458 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height);
238 459
239 XRenderFreePicture (dpy, src); 460 XRenderFreePicture (dpy, src);
240 XRenderFreePicture (dpy, dst); 461 XRenderFreePicture (dpy, dst);
244 465
245rxvt_img * 466rxvt_img *
246rxvt_img::scale (int new_width, int new_height) 467rxvt_img::scale (int new_width, int new_height)
247{ 468{
248 double matrix[9] = { 469 double matrix[9] = {
249 new_width / (double)w, 0, 0, 470 w / (double)new_width, 0, 0,
250 0, new_height / (double)h, 0, 471 0, h / (double)new_height, 0,
251 0, 0, 1 472 0, 0, 1
252 }; 473 };
253 474
254 return transform (new_width, new_height, RepeatNormal, matrix); 475 return transform (new_width, new_height, matrix);
255} 476}
256 477
257rxvt_img * 478rxvt_img *
479rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi)
480{
481 double s = sin (phi);
482 double c = cos (phi);
483
484 double matrix[9] = {
485 c, -s, -c * x + s * y + x,
486 s, c, -s * x - c * y + y,
487 0, 0, 1
488 };
489
490 return transform (new_width, new_height, matrix);
491}
492
493rxvt_img *
258rxvt_img::convert_to (XRenderPictFormat *new_format) 494rxvt_img::convert_to (XRenderPictFormat *new_format, const rxvt_color &bg)
259{ 495{
496 if (new_format == format)
497 return clone ();
498
260 rxvt_img *img = new rxvt_img (s, new_format, w, h); 499 rxvt_img *img = new rxvt_img (s, new_format, 0, 0, w, h);
500 img->alloc ();
261 501
262 Display *dpy = s->display->dpy; 502 Display *dpy = s->display->dpy;
263 Picture src = XRenderCreatePicture (dpy, pm, format, 0, 0); 503 Picture src = src_picture ();
264 Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); 504 Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);
505 int op = PictOpSrc;
265 506
507 if (format->direct.alphaMask && !new_format->direct.alphaMask)
508 {
509 // does it have to be that complicated
510 rgba c;
511 bg.get (c);
512
513 XRenderColor rc = { c.r, c.g, c.b, 0xffff };
514 XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);
515
516 op = PictOpOver;
517 }
518
266 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); 519 XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
267 520
268 XRenderFreePicture (dpy, src);
269 XRenderFreePicture (dpy, dst); 521 XRenderFreePicture (dpy, src);
522 XRenderFreePicture (dpy, dst);
270 523
524 return img;
525}
526
527rxvt_img *
528rxvt_img::blend (rxvt_img *img, double factor)
529{
530 rxvt_img *img2 = clone ();
531 Display *dpy = s->display->dpy;
532 Picture src = src_picture ();
533 Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0);
534 Picture mask = create_xrender_mask (dpy, img->pm, False);
535
536 XRenderColor mask_c;
537
538 mask_c.alpha = float_to_component (factor);
539 mask_c.red =
540 mask_c.green =
541 mask_c.blue = 0;
542 XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
543
544 XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h);
545
546 XRenderFreePicture (dpy, src);
547 XRenderFreePicture (dpy, dst);
548 XRenderFreePicture (dpy, mask);
549
271 return img; 550 return img2;
272} 551}
273 552
274#endif 553#endif
275 554

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