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/cvs/rxvt-unicode/src/rxvtimg.C
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Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.69 by root, Sat Jun 9 11:15:29 2012 UTC vs.
Revision 1.74 by root, Sat Jun 9 19:20:04 2012 UTC

49 img->ref->ours = false; 49 img->ref->ours = false;
50 50
51 return img; 51 return img;
52} 52}
53 53
54# if HAVE_PIXBUF
54rxvt_img * 55rxvt_img *
55rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) 56rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb)
56{ 57{
57 Display *dpy = s->display->dpy; 58 Display *dpy = s->display->dpy;
58 59
166 167
167 g_object_unref (pb); 168 g_object_unref (pb);
168 169
169 return img; 170 return img;
170} 171}
172# endif
171 173
172void 174void
173rxvt_img::destroy () 175rxvt_img::destroy ()
174{ 176{
175 if (--ref->cnt) 177 if (--ref->cnt)
321{ 323{
322 Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); 324 Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);
323 325
324 XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); 326 XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);
325 XRenderPictureAttributes pa; 327 XRenderPictureAttributes pa;
326 pa.repeat = True; 328 pa.repeat = RepeatNormal;
327 Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa); 329 Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
328 330
329 XFreePixmap (dpy, pixmap); 331 XFreePixmap (dpy, pixmap);
330 332
331 return mask; 333 return mask;
357 359
358 Display *dpy = s->display->dpy; 360 Display *dpy = s->display->dpy;
359 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); 361 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
360 362
361 // loop should not be needed for brightness, as only -1..1 makes sense 363 // loop should not be needed for brightness, as only -1..1 makes sense
362
363 while (r | g | b | a) 364 //while (r | g | b | a)
364 { 365 {
365 unsigned short xr, xg, xb, xa; 366 unsigned short xr, xg, xb, xa;
366 XRenderColor mask_c; 367 XRenderColor mask_c;
367 368
368 if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) 369 if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
370 371
371 if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) 372 if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
372 { 373 {
373 XRenderColor mask_w = { 65535, 65535, 65535, 65535 }; 374 XRenderColor mask_w = { 65535, 65535, 65535, 65535 };
374 XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); 375 XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
375 mask_c.red = -mask_c.red; 376 mask_c.red = -mask_c.red; //TODO: verify that doing clamp, assign, and negation does the right thing
376 mask_c.green = -mask_c.green; 377 mask_c.green = -mask_c.green;
377 mask_c.blue = -mask_c.blue; 378 mask_c.blue = -mask_c.blue;
378 mask_c.alpha = -mask_c.alpha; 379 mask_c.alpha = -mask_c.alpha;
379 XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); 380 XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
380 XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); 381 XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
381 } 382 }
382 } 383 }
383 384
384
385 XRenderFreePicture (dpy, dst); 385 XRenderFreePicture (dpy, dst);
386} 386}
387 387
388void 388void
389rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) 389rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a)
390{ 390{
391 if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL)) 391 if (r < 0 || g < 0 || b < 0 || a < 0)
392 rxvt_fatal ("rxvt_img::contrast does not support negative values.\n");
393
394 rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
395 img->alloc ();
396
392 { 397 {
393 rxvt_warn ("rxvt_img::contrast operation not supported on this display, RENDER extension too old.\n"); 398 rxvt_color empty;
394 return; 399 empty.set (s, rgba (0, 0, 0, 0));
400 img->fill (empty);
395 } 401 }
396 402
397 unshare (); 403 // premultiply (yeah, these are not exact, sue me or fix it)
404 r = (r * (a >> 8)) >> 8;
405 g = (g * (a >> 8)) >> 8;
406 b = (b * (a >> 8)) >> 8;
398 407
399 Display *dpy = s->display->dpy; 408 Display *dpy = s->display->dpy;
400 Picture src = create_xrender_mask (dpy, pm, True); 409
410 Picture src = src_picture ();
401 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); 411 Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
412 Picture mul = create_xrender_mask (dpy, pm, True);
402 413
414 XRenderPictureAttributes pa;
415 pa.component_alpha = 1;
416 XRenderChangePicture (dpy, mul, CPComponentAlpha, &pa);
417
418 //TODO: this operator does not yet implement some useful contrast
419 while (r | g | b | a)
420 {
421 unsigned short xr, xg, xb, xa;
403 XRenderColor mask_c; 422 XRenderColor mask_c;
404 mask_c.red = r; 423
405 mask_c.green = g; 424 if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
406 mask_c.blue = b; 425 {
407 mask_c.alpha = a;
408 XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); 426 XRenderFillRectangle (dpy, PictOpSrc, mul, &mask_c, 0, 0, 1, 1);
409
410 XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); 427 XRenderComposite (dpy, PictOpAdd, src, mul, dst, 0, 0, 0, 0, 0, 0, w, h);
428 }
429 }
411 430
431 XRenderFreePicture (dpy, mul);
432 XRenderFreePicture (dpy, dst);
412 XRenderFreePicture (dpy, src); 433 XRenderFreePicture (dpy, src);
413 XRenderFreePicture (dpy, dst); 434
435 ::swap (img->ref, ref);
436 ::swap (img->pm , pm );
437
438 delete img;
414} 439}
415 440
416rxvt_img * 441rxvt_img *
417rxvt_img::clone () 442rxvt_img::clone ()
418{ 443{
600{ 625{
601 rxvt_img *img2 = clone (); 626 rxvt_img *img2 = clone ();
602 Display *dpy = s->display->dpy; 627 Display *dpy = s->display->dpy;
603 Picture src = img->src_picture (); 628 Picture src = img->src_picture ();
604 Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0); 629 Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0);
605 Picture mask = create_xrender_mask (dpy, img->pm, False); 630
631 Pixmap pixmap = XCreatePixmap (dpy, img->pm, 1, 1, 8);
632 XRenderPictFormat *format = XRenderFindStandardFormat (dpy, PictStandardA8);
633 XRenderPictureAttributes pa;
634 pa.repeat = True;
635 Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
636 XFreePixmap (dpy, pixmap);
606 637
607 XRenderColor mask_c; 638 XRenderColor mask_c;
608 639
609 mask_c.alpha = float_to_component (factor); 640 mask_c.alpha = float_to_component (factor);
610 mask_c.red = 641 mask_c.red =

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