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/cvs/rxvt-unicode/src/rxvtimg.C
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Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.111 by root, Tue Sep 17 18:29:02 2019 UTC vs.
Revision 1.114 by sf-exg, Wed Jan 10 06:06:16 2024 UTC

… …
398} 398}
399 399
400rxvt_img * 400rxvt_img *
401rxvt_img::new_from_file (rxvt_screen *s, const char *filename) 401rxvt_img::new_from_file (rxvt_screen *s, const char *filename)
402{ 402{
403 GError *err; 403 GError *err = 0;
404 GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err); 404 GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err);
405 405
406 if (!pb) 406 if (!pb)
407 try 407 try
408 { 408 {
… …
606rxvt_img * 606rxvt_img *
607rxvt_img::muladd (nv mul, nv add) 607rxvt_img::muladd (nv mul, nv add)
608{ 608{
609 // STEP 1: double the image width, fill all odd columns with white (==1) 609 // STEP 1: double the image width, fill all odd columns with white (==1)
610 610
611 composer cc (this, new rxvt_img (d, format, 0, 0, w * 2, h, repeat)); 611 rxvt_img *img = new rxvt_img (d, format, 0, 0, w * 2, h, repeat);
612 composer cc (this, img);
612 613
613 // why the hell does XRenderSetPictureTransform want a writable matrix :( 614 // why the hell does XRenderSetPictureTransform want a writable matrix :(
614 // that keeps us from just static const'ing this matrix. 615 // that keeps us from just static const'ing this matrix.
615 XTransform h_double = { 616 XTransform h_double = {
616 0x08000, 0, 0, 617 0x08000, 0, 0,
… …
637 638
638 // STEP 2: convolve the image with a 3x1 filter 639 // STEP 2: convolve the image with a 3x1 filter
639 // a 2x1 filter would obviously suffice, but given the total lack of specification 640 // a 2x1 filter would obviously suffice, but given the total lack of specification
640 // for xrender, I expect different xrender implementations to randomly diverge. 641 // for xrender, I expect different xrender implementations to randomly diverge.
641 // we also halve the image, and hope for the best (again, for lack of specs). 642 // we also halve the image, and hope for the best (again, for lack of specs).
642 composer cc2 (cc.dstimg); 643 composer cc2 (img);
643 644
644 XFixed kernel [] = { 645 XFixed kernel [] = {
645 XDoubleToFixed (3), XDoubleToFixed (1), 646 XDoubleToFixed (3), XDoubleToFixed (1),
646 XDoubleToFixed (0), XDoubleToFixed (mul), XDoubleToFixed (add) 647 XDoubleToFixed (0), XDoubleToFixed (mul), XDoubleToFixed (add)
647 }; 648 };
… …
656 XRenderSetPictureTransform (cc.dpy, cc2.src, &h_halve); 657 XRenderSetPictureTransform (cc.dpy, cc2.src, &h_halve);
657 XRenderSetPictureFilter (cc.dpy, cc2.src, FilterConvolution, kernel, ecb_array_length (kernel)); 658 XRenderSetPictureFilter (cc.dpy, cc2.src, FilterConvolution, kernel, ecb_array_length (kernel));
658 659
659 XRenderComposite (cc.dpy, PictOpSrc, cc2.src, None, cc2.dst, 0, 0, 0, 0, 0, 0, w * 2, h); 660 XRenderComposite (cc.dpy, PictOpSrc, cc2.src, None, cc2.dst, 0, 0, 0, 0, 0, 0, w * 2, h);
660 661
662 delete img;
663
661 return cc2; 664 return cc2;
662} 665}
663 666
664ecb_noinline static void 667ecb_noinline static void
665extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) 668extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc)
… …
689 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); 692 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
690 693
691 // loop should not be needed for brightness, as only -1..1 makes sense 694 // loop should not be needed for brightness, as only -1..1 makes sense
692 //while (r | g | b | a) 695 //while (r | g | b | a)
693 { 696 {
694 unsigned short xr, xg, xb, xa;
695 XRenderColor mask_c; 697 XRenderColor mask_c;
696 698
697 if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) 699 if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
698 XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); 700 XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
699 701
… …
731 cc.mask (true); 733 cc.mask (true);
732 734
733 //TODO: this operator does not yet implement some useful contrast 735 //TODO: this operator does not yet implement some useful contrast
734 while (r | g | b | a) 736 while (r | g | b | a)
735 { 737 {
736 unsigned short xr, xg, xb, xa;
737 XRenderColor mask_c; 738 XRenderColor mask_c;
738 739
739 if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) 740 if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
740 { 741 {
741 XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &mask_c, 0, 0, 1, 1); 742 XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &mask_c, 0, 0, 1, 1);

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