[ViewVC] Diff of: cvs/rxvt-unicode/src/rxvtimg.C

Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.95 by root, Fri Jun 15 18:36:26 2012 UTC vs.
Revision 1.114 by sf-exg, Wed Jan 10 06:06:16 2024 UTC

…		…
		1	/----------------------------------------------------------------------
		2	* File: rxvtimg.C
		3	----------------------------------------------------------------------
		4	*
		5	* All portions of code are copyright by their respective author/s.
		6	* Copyright (c) 2012 Marc Lehmann <schmorp@schmorp.de>
		7	* Copyright (c) 2012 Emanuele Giaquinta <e.giaquinta@glauco.it>
		8	*
		9	* This program is free software; you can redistribute it and/or modify
		10	* it under the terms of the GNU General Public License as published by
		11	* the Free Software Foundation; either version 3 of the License, or
		12	* (at your option) any later version.
		13	*
		14	* This program is distributed in the hope that it will be useful,
		15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
		16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		17	* GNU General Public License for more details.
		18	*
		19	* You should have received a copy of the GNU General Public License
		20	* along with this program; if not, write to the Free Software
		21	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
		22	---------------------------------------------------------------------/
		23
1	#include <string.h>	24	#include <string.h>
2	#include <math.h>	25	#include <math.h>
3	#include "../config.h"	26	#include "../config.h"
4	#include "rxvt.h"	27	#include "rxvt.h"
5		28
7		30
8	typedef rxvt_img::nv nv;	31	typedef rxvt_img::nv nv;
9		32
10	namespace	33	namespace
11	{	34	{
12
13	struct mat3x3	35	struct mat3x3
14	{	36	{
15	nv v[3][3];	37	nv v[3][3];
16		38
17	mat3x3 ()	39	mat3x3 ()
…		…
28	v[0][0] = v11; v[0][1] = v12; v[0][2] = v13;	50	v[0][0] = v11; v[0][1] = v12; v[0][2] = v13;
29	v[1][0] = v21; v[1][1] = v22; v[1][2] = v23;	51	v[1][0] = v21; v[1][1] = v22; v[1][2] = v23;
30	v[2][0] = v31; v[2][1] = v32; v[2][2] = v33;	52	v[2][0] = v31; v[2][1] = v32; v[2][2] = v33;
31	}	53	}
32		54
33	mat3x3 invert ();	55	mat3x3 inverse ();
34		56
35	nv *operator [](int i) { return &v[i][0]; }	57	nv *operator [](int i) { return &v[i][0]; }
36	const nv *operator [](int i) const { return &v[i][0]; }	58	const nv *operator [](int i) const { return &v[i][0]; }
37		59
38	operator const nv * () const { return &v[0][0]; }	60	operator const nv * () const { return &v[0][0]; }
…		…
53	static mat3x3 scale (nv s, nv t);	75	static mat3x3 scale (nv s, nv t);
54	static mat3x3 rotate (nv phi);	76	static mat3x3 rotate (nv phi);
55	};	77	};
56		78
57	mat3x3	79	mat3x3
58	mat3x3::invert ()	80	mat3x3::inverse ()
59	{	81	{
60	mat3x3 &m = *this;	82	mat3x3 &m = *this;
61	mat3x3 inv;	83	mat3x3 inv;
62		84
63	nv s0 = m[2][2] * m[1][1] - m[2][1] * m[1][2];	85	nv s0 = m[2][2] * m[1][1] - m[2][1] * m[1][2];
…		…
127	s, c, 0,	149	s, c, 0,
128	0, 0, 1	150	0, 0, 1
129	);	151	);
130	}	152	}
131		153
132	}	154	struct composer
133
134	#if 0
135	struct pict
136	{
137	Display *dpy;
138	Picture pic;
139
140	operator Picture () const
141	{	155	{
142	return pic;	156	rxvt_img srcimg, dstimg;
143	}	157	Picture src, dst, msk;
		158	Display *dpy;
144		159
145	pict ()	160	ecb_noinline
146	: pic (0)	161	composer (rxvt_img srcimg, rxvt_img dstimg = 0)
		162	: srcimg (srcimg), dstimg (dstimg), msk (0)
147	{	163	{
		164	if (!this->dstimg)
		165	this->dstimg = srcimg->new_empty ();
		166	else if (!this->dstimg->pm) // somewhat unsatisfying
		167	this->dstimg->alloc ();
		168
		169	dpy = srcimg->d->dpy;
		170	src = srcimg->picture ();
		171	dst = this->dstimg->picture ();
148	}	172	}
149		173
150	pict (rxvt_img img, XRenderPictFormat format = 0)	174	ecb_noinline
151	: dpy (img->s->display->dpy)	175	void mask (bool rgb = true, int w = 1, int h = 1)
152	{	176	{
		177	Pixmap pixmap = XCreatePixmap (dpy, srcimg->pm, w, h, rgb ? 32 : 8);
		178
		179	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, rgb ? PictStandardARGB32 : PictStandardA8);
153	XRenderPictureAttributes pa;	180	XRenderPictureAttributes pa;
154	pa.repeat = img->repeat;	181	pa.repeat = RepeatNormal;
155	pic = XRenderCreatePicture (dpy, img->pm, format ? format : img->format, CPRepeat, &pa);	182	pa.component_alpha = rgb;
		183	msk = XRenderCreatePicture (dpy, pixmap, format, CPRepeat \| CPComponentAlpha, &pa);
		184
		185	XFreePixmap (dpy, pixmap);
		186
		187	ecb_assume (msk);
		188	}
		189
		190	// CreateSolidFill creates a very very very weird picture
		191	void mask (const rgba &c)
		192	{
		193	// the casts are needed in C++11 (see 8.5.1)
		194	XRenderColor rc = {
		195	(unsigned short)(c.r * c.a / 65535),
		196	(unsigned short)(c.g * c.a / 65535),
		197	(unsigned short)(c.b * c.a / 65535),
		198	c.a
		199	};
		200	msk = XRenderCreateSolidFill (dpy, &rc);
		201	ecb_assume (msk);
		202	}
		203
		204	void fill (const rgba &c)
		205	{
		206	XRenderColor rc = {
		207	(unsigned short)(c.r * c.a / 65535),
		208	(unsigned short)(c.g * c.a / 65535),
		209	(unsigned short)(c.b * c.a / 65535),
		210	c.a
		211	};
		212
		213	XRenderFillRectangle (dpy, PictOpSrc, msk, &rc, 0, 0, 1, 1);
		214	}
		215
		216	operator rxvt_img *()
		217	{
		218	return dstimg;
		219	}
		220
		221	ecb_noinline
		222	~composer ()
		223	{
		224	XRenderFreePicture (dpy, src);
		225	XRenderFreePicture (dpy, dst);
		226	if (msk) XRenderFreePicture (dpy, msk);
		227	}
156	}	228	};
157		229	}
158	~pict ()
159	{
160	if (pic)
161	XRenderFreePicture (dpy, pic);
162	}
163	};
164	#endif
165		230
166	static XRenderPictFormat *	231	static XRenderPictFormat *
167	find_alpha_format_for (Display dpy, XRenderPictFormat format)	232	find_alpha_format_for (Display dpy, XRenderPictFormat format)
168	{	233	{
169	if (format->direct.alphaMask)	234	if (format->direct.alphaMask)
…		…
182	// should be a very good fallback	247	// should be a very good fallback
183	return XRenderFindStandardFormat (dpy, PictStandardARGB32);	248	return XRenderFindStandardFormat (dpy, PictStandardARGB32);
184	}	249	}
185		250
186	rxvt_img::rxvt_img (rxvt_screen screen, XRenderPictFormat format, int x, int y, int width, int height, int repeat)	251	rxvt_img::rxvt_img (rxvt_screen screen, XRenderPictFormat format, int x, int y, int width, int height, int repeat)
187	: s(screen), x(x), y(y), w(width), h(height), format(format), repeat(repeat),	252	: d(screen->display), x(x), y(y), w(width), h(height), format(format), repeat(repeat),
188	pm(0), ref(0)	253	pm(0), ref(0)
189	{	254	{
190	}	255	}
191		256
		257	rxvt_img::rxvt_img (rxvt_display display, XRenderPictFormat format, int x, int y, int width, int height, int repeat)
		258	: d(display), x(x), y(y), w(width), h(height), format(format), repeat(repeat),
		259	pm(0), ref(0)
		260	{
		261	}
		262
192	rxvt_img::rxvt_img (const rxvt_img &img)	263	rxvt_img::rxvt_img (const rxvt_img &img)
193	: 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)	264	: d(img.d), x(img.x), y(img.y), w(img.w), h(img.h), format(img.format), repeat(img.repeat), pm(img.pm), ref(img.ref)
194	{	265	{
195	++ref->cnt;	266	++ref->cnt;
196	}	267	}
197		268
198	rxvt_img *	269	rxvt_img *
199	rxvt_img::new_from_root (rxvt_screen *s)	270	rxvt_img::new_from_root (rxvt_screen *s)
200	{	271	{
201	Display *dpy = s->display->dpy;	272	Display *dpy = s->dpy;
202	unsigned int root_pm_w, root_pm_h;	273	unsigned int root_pm_w, root_pm_h;
203	Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_XROOTPMAP_ID]);	274	Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa [XA_XROOTPMAP_ID]);
204	if (root_pixmap == None)	275	if (root_pixmap == None)
205	root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_ESETROOT_PMAP_ID]);	276	root_pixmap = s->display->get_pixmap_property (s->display->xa [XA_ESETROOT_PMAP_ID]);
206		277
207	if (root_pixmap == None)	278	if (root_pixmap == None)
208	return 0;	279	return 0;
209		280
210	Window wdummy;	281	Window wdummy;
…		…
233	# if HAVE_PIXBUF	304	# if HAVE_PIXBUF
234		305
235	rxvt_img *	306	rxvt_img *
236	rxvt_img::new_from_pixbuf (rxvt_screen s, GdkPixbuf pb)	307	rxvt_img::new_from_pixbuf (rxvt_screen s, GdkPixbuf pb)
237	{	308	{
238	Display *dpy = s->display->dpy;	309	Display *dpy = s->dpy;
239		310
240	int width = gdk_pixbuf_get_width (pb);	311	int width = gdk_pixbuf_get_width (pb);
241	int height = gdk_pixbuf_get_height (pb);	312	int height = gdk_pixbuf_get_height (pb);
242		313
243	if (width > 32767 \|\| height > 32767) // well, we could upload in chunks	314	if (width > 32767 \|\| height > 32767) // well, we could upload in chunks
…		…
285	for (int y = 0; y < height; y++)	356	for (int y = 0; y < height; y++)
286	{	357	{
287	unsigned char *src = row;	358	unsigned char *src = row;
288	uint32_t dst = (uint32_t )line;	359	uint32_t dst = (uint32_t )line;
289		360
290	if (!pb_has_alpha)
291	for (int x = 0; x < width; x++)	361	for (int x = 0; x < width; x++)
292	{	362	{
293	uint8_t r = *src++;	363	uint8_t r = *src++;
294	uint8_t g = *src++;	364	uint8_t g = *src++;
295	uint8_t b = *src++;	365	uint8_t b = *src++;
		366	uint8_t a = *src;
296		367
		368	// this is done so it can be jump-free, but newer gcc's clone inner the loop
		369	a = pb_has_alpha ? a : 255;
		370	src += pb_has_alpha;
		371
		372	r = (r * a + 127) / 255;
		373	g = (g * a + 127) / 255;
		374	b = (b * a + 127) / 255;
		375
297	uint32_t v = (255 << 24) \| (r << 16) \| (g << 8) \| b;	376	uint32_t v = (a << 24) \| (r << 16) \| (g << 8) \| b;
298		377
299	if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch)	378	if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch)
300	v = ecb_bswap32 (v);	379	v = ecb_bswap32 (v);
301		380
302	*dst++ = v;	381	*dst++ = v;
303	}	382	}
304	else
305	for (int x = 0; x < width; x++)
306	{
307	uint32_t v = (uint32_t )src; src += 4;
308
309	if (ecb_big_endian ())
310	v = ecb_bswap32 (v);
311
312	v = ecb_rotl32 (v, 8); // abgr to bgra
313
314	if (!byte_order_mismatch)
315	v = ecb_bswap32 (v);
316
317	*dst++ = v;
318	}
319		383
320	row += rowstride;	384	row += rowstride;
321	line += xi.bytes_per_line;	385	line += xi.bytes_per_line;
322	}	386	}
323		387
…		…
338	{	402	{
339	GError *err = 0;	403	GError *err = 0;
340	GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err);	404	GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err);
341		405
342	if (!pb)	406	if (!pb)
		407	try
		408	{
343	rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message);	409	rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message);
		410	}
		411	catch (...)
		412	{
		413	g_error_free (err);
		414	throw;
		415	}
344		416
345	rxvt_img *img = new_from_pixbuf (s, pb);	417	rxvt_img *img = new_from_pixbuf (s, pb);
346		418
347	g_object_unref (pb);	419	g_object_unref (pb);
348		420
…		…
356	{	428	{
357	if (--ref->cnt)	429	if (--ref->cnt)
358	return;	430	return;
359		431
360	if (pm && ref->ours)	432	if (pm && ref->ours)
361	XFreePixmap (s->display->dpy, pm);	433	XFreePixmap (d->dpy, pm);
362		434
363	delete ref;	435	delete ref;
364	}	436	}
365		437
366	rxvt_img::~rxvt_img ()	438	rxvt_img::~rxvt_img ()
…		…
369	}	441	}
370		442
371	void	443	void
372	rxvt_img::alloc ()	444	rxvt_img::alloc ()
373	{	445	{
374	pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth);	446	pm = XCreatePixmap (d->dpy, d->root, w, h, format->depth);
375	ref = new pixref (w, h);	447	ref = new pixref (w, h);
		448	}
		449
		450	rxvt_img *
		451	rxvt_img::new_empty ()
		452	{
		453	rxvt_img *img = new rxvt_img (d, format, x, y, w, h, repeat);
		454	img->alloc ();
		455
		456	return img;
376	}	457	}
377		458
378	Picture	459	Picture
379	rxvt_img::picture ()	460	rxvt_img::picture ()
380	{	461	{
381	Display *dpy = s->display->dpy;	462	Display *dpy = d->dpy;
382		463
383	XRenderPictureAttributes pa;	464	XRenderPictureAttributes pa;
384	pa.repeat = repeat;	465	pa.repeat = repeat;
385	Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);	466	Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
386		467
…		…
391	rxvt_img::unshare ()	472	rxvt_img::unshare ()
392	{	473	{
393	if (ref->cnt == 1 && ref->ours)	474	if (ref->cnt == 1 && ref->ours)
394	return;	475	return;
395		476
396	Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth);	477	Pixmap pm2 = XCreatePixmap (d->dpy, d->root, ref->w, ref->h, format->depth);
397	GC gc = XCreateGC (s->display->dpy, pm, 0, 0);	478	GC gc = XCreateGC (d->dpy, pm, 0, 0);
398	XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0);	479	XCopyArea (d->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0);
399	XFreeGC (s->display->dpy, gc);	480	XFreeGC (d->dpy, gc);
400		481
401	destroy ();	482	destroy ();
402		483
403	pm = pm2;	484	pm = pm2;
404	ref = new pixref (ref->w, ref->h);	485	ref = new pixref (ref->w, ref->h);
405	}	486	}
406		487
407	void	488	void
		489	rxvt_img::fill (const rgba &c, int x, int y, int w, int h)
		490	{
		491	XRenderColor rc = { c.r, c.g, c.b, c.a };
		492
		493	Display *dpy = d->dpy;
		494	Picture src = picture ();
		495	XRenderFillRectangle (dpy, PictOpSrc, src, &rc, x, y, w, h);
		496	XRenderFreePicture (dpy, src);
		497	}
		498
		499	void
408	rxvt_img::fill (const rgba &c)	500	rxvt_img::fill (const rgba &c)
409	{	501	{
410	XRenderColor rc = { c.r, c.g, c.b, c.a };	502	fill (c, 0, 0, w, h);
411
412	Display *dpy = s->display->dpy;
413	Picture src = picture ();
414	XRenderFillRectangle (dpy, PictOpSrc, src, &rc, 0, 0, w, h);
415	XRenderFreePicture (dpy, src);
416	}	503	}
417		504
418	void	505	void
419	rxvt_img::add_alpha ()	506	rxvt_img::add_alpha ()
420	{	507	{
421	if (format->direct.alphaMask)	508	if (format->direct.alphaMask)
422	return;	509	return;
423		510
424	Display *dpy = s->display->dpy;	511	composer cc (this, new rxvt_img (d, find_alpha_format_for (d->dpy, format), x, y, w, h, repeat));
425
426	rxvt_img *img = new rxvt_img (s, find_alpha_format_for (dpy, format), x, y, w, h, repeat);
427	img->alloc ();
428
429	Picture src = picture ();
430	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
431		512
432	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	513	XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w, h);
433		514
434	XRenderFreePicture (dpy, src);	515	rxvt_img *img = cc;
435	XRenderFreePicture (dpy, dst);
436		516
437	::swap (img->ref, ref);	517	::swap (img->ref, ref);
438	::swap (img->pm , pm );	518	::swap (img->pm , pm );
439		519
440	delete img;	520	delete img;
…		…
462	}	542	}
463		543
464	rxvt_img *	544	rxvt_img *
465	rxvt_img::blur (int rh, int rv)	545	rxvt_img::blur (int rh, int rv)
466	{	546	{
467	if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV))	547	if (!(d->flags & DISPLAY_HAS_RENDER_CONV))
468	return clone ();	548	return clone ();
469		549
470	Display *dpy = s->display->dpy;	550	Display *dpy = d->dpy;
471	int size = max (rh, rv) * 2 + 1;	551	int size = max (rh, rv) * 2 + 1;
472	nv kernel = (nv )malloc (size * sizeof (nv));	552	nv kernel = (nv )malloc (size * sizeof (nv));
473	XFixed params = (XFixed )malloc ((size + 2) * sizeof (XFixed));	553	XFixed *params = rxvt_temp_buf<XFixed> (size + 2);
474	rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);	554	rxvt_img *img = new_empty ();
475	img->alloc ();
476		555
477	XRenderPictureAttributes pa;	556	XRenderPictureAttributes pa;
478	pa.repeat = RepeatPad;	557	pa.repeat = RepeatPad;
479	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);	558	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
480	Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);	559	Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
…		…
514	0, 0,	593	0, 0,
515	w, h);	594	w, h);
516	}	595	}
517		596
518	free (kernel);	597	free (kernel);
519	free (params);
520		598
521	XRenderFreePicture (dpy, src);	599	XRenderFreePicture (dpy, src);
522	XRenderFreePicture (dpy, dst);	600	XRenderFreePicture (dpy, dst);
523	XRenderFreePicture (dpy, tmp);	601	XRenderFreePicture (dpy, tmp);
524		602
525	return img;	603	return img;
526	}	604	}
527		605
528	static Picture	606	rxvt_img *
529	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha)	607	rxvt_img::muladd (nv mul, nv add)
530	{	608	{
531	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);	609	// STEP 1: double the image width, fill all odd columns with white (==1)
532		610
533	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);	611	rxvt_img img = new rxvt_img (d, format, 0, 0, w 2, h, repeat);
534	XRenderPictureAttributes pa;	612	composer cc (this, img);
535	pa.repeat = RepeatNormal;
536	pa.component_alpha = component_alpha;
537	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat \| CPComponentAlpha, &pa);
538		613
539	XFreePixmap (dpy, pixmap);	614	// why the hell does XRenderSetPictureTransform want a writable matrix :(
		615	// that keeps us from just static const'ing this matrix.
		616	XTransform h_double = {
		617	0x08000, 0, 0,
		618	0, 0x10000, 0,
		619	0, 0, 0x10000
		620	};
540		621
541	return mask;	622	XRenderSetPictureFilter (cc.dpy, cc.src, "nearest", 0, 0);
542	}	623	XRenderSetPictureTransform (cc.dpy, cc.src, &h_double);
		624	XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w * 2, h);
543		625
544	static void	626	cc.mask (false, 2, 1);
		627
		628	static const XRenderColor c0 = { 0, 0, 0, 0 };
		629	XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &c0, 0, 0, 1, 1);
		630	static const XRenderColor c1 = { 65535, 65535, 65535, 65535 };
		631	XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &c1, 1, 0, 1, 1);
		632
		633	Picture white = XRenderCreateSolidFill (cc.dpy, &c1);
		634
		635	XRenderComposite (cc.dpy, PictOpOver, white, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w * 2, h);
		636
		637	XRenderFreePicture (cc.dpy, white);
		638
		639	// STEP 2: convolve the image with a 3x1 filter
		640	// a 2x1 filter would obviously suffice, but given the total lack of specification
		641	// for xrender, I expect different xrender implementations to randomly diverge.
		642	// we also halve the image, and hope for the best (again, for lack of specs).
		643	composer cc2 (img);
		644
		645	XFixed kernel [] = {
		646	XDoubleToFixed (3), XDoubleToFixed (1),
		647	XDoubleToFixed (0), XDoubleToFixed (mul), XDoubleToFixed (add)
		648	};
		649
		650	XTransform h_halve = {
		651	0x20000, 0, 0,
		652	0, 0x10000, 0,
		653	0, 0, 0x10000
		654	};
		655
		656	XRenderSetPictureFilter (cc.dpy, cc2.src, "nearest", 0, 0);
		657	XRenderSetPictureTransform (cc.dpy, cc2.src, &h_halve);
		658	XRenderSetPictureFilter (cc.dpy, cc2.src, FilterConvolution, kernel, ecb_array_length (kernel));
		659
		660	XRenderComposite (cc.dpy, PictOpSrc, cc2.src, None, cc2.dst, 0, 0, 0, 0, 0, 0, w * 2, h);
		661
		662	delete img;
		663
		664	return cc2;
		665	}
		666
		667	ecb_noinline static void
545	extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc)	668	extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc)
546	{	669	{
547	int32_t x = clamp (c, cl0, cl1);	670	int32_t x = clamp (c, cl0, cl1);
548	c -= x;	671	c -= x;
549	xc = x;	672	xc = x;
550	}	673	}
551		674
552	static bool	675	ecb_noinline static bool
553	extract (int32_t cl0, int32_t cl1, int32_t &r, int32_t &g, int32_t &b, int32_t &a, unsigned short &xr, unsigned short &xg, unsigned short &xb, unsigned short &xa)	676	extract (int32_t cl0, int32_t cl1, int32_t &r, int32_t &g, int32_t &b, int32_t &a, unsigned short &xr, unsigned short &xg, unsigned short &xb, unsigned short &xa)
554	{	677	{
555	extract (cl0, cl1, r, xr);	678	extract (cl0, cl1, r, xr);
556	extract (cl0, cl1, g, xg);	679	extract (cl0, cl1, g, xg);
557	extract (cl0, cl1, b, xb);	680	extract (cl0, cl1, b, xb);
…		…
563	void	686	void
564	rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a)	687	rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a)
565	{	688	{
566	unshare ();	689	unshare ();
567		690
568	Display *dpy = s->display->dpy;	691	Display *dpy = d->dpy;
569	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);	692	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
570		693
571	// 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
572	//while (r \| g \| b \| a)	695	//while (r \| g \| b \| a)
573	{	696	{
574	unsigned short xr, xg, xb, xa;
575	XRenderColor mask_c;	697	XRenderColor mask_c;
576		698
577	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))
578	XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);	700	XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
579		701
…		…
597	rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a)	719	rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a)
598	{	720	{
599	if (r < 0 \|\| g < 0 \|\| b < 0 \|\| a < 0)	721	if (r < 0 \|\| g < 0 \|\| b < 0 \|\| a < 0)
600	rxvt_fatal ("rxvt_img::contrast does not support negative values.\n");	722	rxvt_fatal ("rxvt_img::contrast does not support negative values.\n");
601		723
602	rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
603	img->alloc ();
604	img->fill (rgba (0, 0, 0, 0));
605
606	// premultiply (yeah, these are not exact, sue me or fix it)	724	// premultiply (yeah, these are not exact, sue me or fix it)
607	r = (r * (a >> 8)) >> 8;	725	r = (r * (a >> 8)) >> 8;
608	g = (g * (a >> 8)) >> 8;	726	g = (g * (a >> 8)) >> 8;
609	b = (b * (a >> 8)) >> 8;	727	b = (b * (a >> 8)) >> 8;
610		728
611	Display *dpy = s->display->dpy;	729	composer cc (this);
		730	rxvt_img *img = cc;
		731	img->fill (rgba (0, 0, 0, 0));
612		732
613	Picture src = picture ();	733	cc.mask (true);
614	Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
615	Picture mul = create_xrender_mask (dpy, pm, True, True);
616		734
617	//TODO: this operator does not yet implement some useful contrast	735	//TODO: this operator does not yet implement some useful contrast
618	while (r \| g \| b \| a)	736	while (r \| g \| b \| a)
619	{	737	{
620	unsigned short xr, xg, xb, xa;
621	XRenderColor mask_c;	738	XRenderColor mask_c;
622		739
623	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))
624	{	741	{
625	XRenderFillRectangle (dpy, PictOpSrc, mul, &mask_c, 0, 0, 1, 1);	742	XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &mask_c, 0, 0, 1, 1);
626	XRenderComposite (dpy, PictOpAdd, src, mul, dst, 0, 0, 0, 0, 0, 0, w, h);	743	XRenderComposite (cc.dpy, PictOpAdd, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h);
627	}	744	}
628	}	745	}
629
630	XRenderFreePicture (dpy, mul);
631	XRenderFreePicture (dpy, dst);
632	XRenderFreePicture (dpy, src);
633		746
634	::swap (img->ref, ref);	747	::swap (img->ref, ref);
635	::swap (img->pm , pm );	748	::swap (img->pm , pm );
636		749
637	delete img;	750	delete img;
…		…
640	void	753	void
641	rxvt_img::draw (rxvt_img *img, int op, nv mask)	754	rxvt_img::draw (rxvt_img *img, int op, nv mask)
642	{	755	{
643	unshare ();	756	unshare ();
644		757
645	Display *dpy = s->display->dpy;	758	composer cc (img, this);
646	Picture src = img->picture ();
647	Picture dst = picture ();
648	Picture mask_p = 0;
649		759
650	if (mask != 1.)	760	if (mask != 1.)
651	{	761	cc.mask (rgba (0, 0, 0, float_to_component (mask)));
652	mask_p = create_xrender_mask (dpy, img->pm, False, False);
653	XRenderColor mask_c = { 0, 0, 0, float_to_component (mask) };
654	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
655	}
656		762
657	XRenderComposite (dpy, op, src, mask_p, dst, x - img->x, y - img->y, 0, 0, 0, 0, w, h);	763	XRenderComposite (cc.dpy, op, cc.src, cc.msk, cc.dst, x - img->x, y - img->y, 0, 0, 0, 0, w, h);
658
659	XRenderFreePicture (dpy, src);
660	XRenderFreePicture (dpy, dst);
661
662	if (mask_p)
663	XRenderFreePicture (dpy, mask_p);
664	}	764	}
665		765
666	rxvt_img *	766	rxvt_img *
667	rxvt_img::clone ()	767	rxvt_img::clone ()
668	{	768	{
…		…
672	rxvt_img *	772	rxvt_img *
673	rxvt_img::reify ()	773	rxvt_img::reify ()
674	{	774	{
675	if (x == 0 && y == 0 && w == ref->w && h == ref->h)	775	if (x == 0 && y == 0 && w == ref->w && h == ref->h)
676	return clone ();	776	return clone ();
677
678	Display *dpy = s->display->dpy;
679		777
680	// add an alpha channel if...	778	// add an alpha channel if...
681	bool alpha = !format->direct.alphaMask // pixmap has none yet	779	bool alpha = !format->direct.alphaMask // pixmap has none yet
682	&& (x \|\| y) // we need one because of non-zero offset	780	&& (x \|\| y) // we need one because of non-zero offset
683	&& repeat == RepeatNone; // and we have no good pixels to fill with	781	&& repeat == RepeatNone; // and we have no good pixels to fill with
684		782
685	rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat);	783	composer cc (this, new rxvt_img (d, alpha ? find_alpha_format_for (d->dpy, format) : format,
686	img->alloc ();	784	0, 0, w, h, repeat));
687		785
688	Picture src = picture ();	786	if (repeat == RepeatNone)
689	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
690
691	if (alpha)
692	{	787	{
693	XRenderColor rc = { 0, 0, 0, 0 };	788	XRenderColor rc = { 0, 0, 0, 0 };
694	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles	789	XRenderFillRectangle (cc.dpy, PictOpSrc, cc.dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles
695	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, x, y, ref->w, ref->h);	790	XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, x, y, ref->w, ref->h);
696	}	791	}
697	else	792	else
698	XRenderComposite (dpy, PictOpSrc, src, None, dst, -x, -y, 0, 0, 0, 0, w, h);	793	XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, -x, -y, 0, 0, 0, 0, w, h);
699		794
700	XRenderFreePicture (dpy, src);
701	XRenderFreePicture (dpy, dst);
702
703	return img;	795	return cc;
704	}	796	}
705		797
706	rxvt_img *	798	rxvt_img *
707	rxvt_img::sub_rect (int x, int y, int width, int height)	799	rxvt_img::sub_rect (int x, int y, int width, int height)
708	{	800	{
…		…
734	rxvt_img::transform (const nv *matrix)	826	rxvt_img::transform (const nv *matrix)
735	{	827	{
736	mat3x3 m (matrix);	828	mat3x3 m (matrix);
737		829
738	// calculate new pixel bounding box coordinates	830	// calculate new pixel bounding box coordinates
739	nv r[2], rmin[2], rmax[2];	831	nv rmin[2], rmax[2];
740		832
741	for (int i = 0; i < 2; ++i)	833	for (int i = 0; i < 2; ++i)
742	{	834	{
743	nv v;	835	nv v;
744		836
745	v = m.apply1 (i, 0+x, 0+y); rmin [i] = rmax [i] = v; r [i] = v;	837	v = m.apply1 (i, 0+x, 0+y); rmin [i] = rmax [i] = v;
746	v = m.apply1 (i, w+x, 0+y); min_it (rmin [i], v); max_it (rmax [i], v);	838	v = m.apply1 (i, w+x, 0+y); min_it (rmin [i], v); max_it (rmax [i], v);
747	v = m.apply1 (i, 0+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v);	839	v = m.apply1 (i, 0+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v);
748	v = m.apply1 (i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v);	840	v = m.apply1 (i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v);
749	}	841	}
750		842
…		…
756	int ny = floor (rmin [1]);	848	int ny = floor (rmin [1]);
757		849
758	int new_width = ceil (rmax [0] - rmin [0]);	850	int new_width = ceil (rmax [0] - rmin [0]);
759	int new_height = ceil (rmax [1] - rmin [1]);	851	int new_height = ceil (rmax [1] - rmin [1]);
760		852
761	m = mat3x3::translate (-x, -y) * m * mat3x3::translate (x, y);	853	mat3x3 inv = (mat3x3::translate (-x, -y) * m * mat3x3::translate (x, y)).inverse ();
762		854
763	mat3x3 inv = m.invert ();	855	composer cc (this, new rxvt_img (d, format, nx, ny, new_width, new_height, repeat));
764
765	rxvt_img *img = new rxvt_img (s, format, nx, ny, new_width, new_height, repeat);
766	img->alloc ();
767
768	Display *dpy = s->display->dpy;
769	Picture src = picture ();
770	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
771		856
772	XTransform xfrm;	857	XTransform xfrm;
773		858
774	for (int i = 0; i < 3; ++i)	859	for (int i = 0; i < 3; ++i)
775	for (int j = 0; j < 3; ++j)	860	for (int j = 0; j < 3; ++j)
776	xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]);	861	xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]);
777		862
778	XRenderSetPictureFilter (dpy, src, "good", 0, 0);	863	XRenderSetPictureFilter (cc.dpy, cc.src, "good", 0, 0);
779	XRenderSetPictureTransform (dpy, src, &xfrm);	864	XRenderSetPictureTransform (cc.dpy, cc.src, &xfrm);
780	XRenderComposite (dpy, PictOpSrc, src, None, dst, sx, sy, 0, 0, 0, 0, new_width, new_height);	865	XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, sx, sy, 0, 0, 0, 0, new_width, new_height);
781		866
782	XRenderFreePicture (dpy, src);
783	XRenderFreePicture (dpy, dst);
784
785	return img;	867	return cc;
786	}	868	}
787		869
788	rxvt_img *	870	rxvt_img *
789	rxvt_img::scale (int new_width, int new_height)	871	rxvt_img::scale (int new_width, int new_height)
790	{	872	{
…		…
803	}	885	}
804		886
805	rxvt_img *	887	rxvt_img *
806	rxvt_img::rotate (int cx, int cy, nv phi)	888	rxvt_img::rotate (int cx, int cy, nv phi)
807	{	889	{
808	#if 0
809	{ c, -s, cx - c * cx + s * cy },
810	{ s, c, cy - s * cx - c * cy },
811	{ 0, 0, 1 }
812	#endif
813
814	move (-cx, -cy);	890	move (-cx, -cy);
815	rxvt_img *img = transform (mat3x3::rotate (phi));	891	rxvt_img *img = transform (mat3x3::rotate (phi));
816	move ( cx, cy);	892	move ( cx, cy);
817	img->move (cx, cy);	893	img->move (cx, cy);
818		894
…		…
823	rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg)	899	rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg)
824	{	900	{
825	if (new_format == format)	901	if (new_format == format)
826	return clone ();	902	return clone ();
827		903
828	rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat);	904	composer cc (this, new rxvt_img (d, new_format, x, y, w, h, repeat));
829	img->alloc ();
830		905
831	Display *dpy = s->display->dpy;
832	Picture src = picture ();
833	Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);
834	int op = PictOpSrc;	906	int op = PictOpSrc;
835		907
836	if (format->direct.alphaMask && !new_format->direct.alphaMask)	908	if (format->direct.alphaMask && !new_format->direct.alphaMask)
837	{	909	{
838	// does it have to be that complicated	910	// does it have to be that complicated
839	XRenderColor rc = { bg.r, bg.g, bg.b, bg.a };	911	XRenderColor rc = { bg.r, bg.g, bg.b, bg.a };
840	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);	912	XRenderFillRectangle (cc.dpy, PictOpSrc, cc.dst, &rc, 0, 0, w, h);
841		913
842	op = PictOpOver;	914	op = PictOpOver;
843	}	915	}
844		916
845	XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	917	XRenderComposite (cc.dpy, op, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w, h);
846		918
847	XRenderFreePicture (dpy, src);	919	return cc;
848	XRenderFreePicture (dpy, dst);	920	}
		921
		922	rxvt_img *
		923	rxvt_img::tint (const rgba &c)
		924	{
		925	composer cc (this);
		926	cc.mask (true);
		927	cc.fill (c);
		928
		929	XRenderComposite (cc.dpy, PictOpSrc, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h);
		930
		931	return cc;
		932	}
		933
		934	rxvt_img *
		935	rxvt_img::shade (nv factor, rgba c)
		936	{
		937	clamp_it (factor, -1., 1.);
		938	factor++;
		939
		940	if (factor > 1)
		941	{
		942	c.r = c.r * (2 - factor);
		943	c.g = c.g * (2 - factor);
		944	c.b = c.b * (2 - factor);
		945	}
		946	else
		947	{
		948	c.r = c.r * factor;
		949	c.g = c.g * factor;
		950	c.b = c.b * factor;
		951	}
		952
		953	rxvt_img *img = this->tint (c);
		954
		955	if (factor > 1)
		956	{
		957	c.a = 0xffff;
		958	c.r =
		959	c.g =
		960	c.b = 0xffff * (factor - 1);
		961
		962	img->brightness (c.r, c.g, c.b, c.a);
		963	}
849		964
850	return img;	965	return img;
851	}	966	}
852		967
853	rxvt_img *	968	rxvt_img *
854	rxvt_img::blend (rxvt_img *img, nv factor)	969	rxvt_img::filter (const char name, int nparams, nv params)
855	{	970	{
856	rxvt_img *img2 = clone ();	971	composer cc (this);
857	Display *dpy = s->display->dpy;
858	Picture src = img->picture ();
859	Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0);
860	Picture mask = create_xrender_mask (dpy, img->pm, False, False);
861		972
862	XRenderColor mask_c;	973	XFixed *xparams = rxvt_temp_buf<XFixed> (nparams);
863		974
864	mask_c.alpha = float_to_component (factor);	975	for (int i = 0; i < nparams; ++i)
865	mask_c.red =	976	xparams [i] = XDoubleToFixed (params [i]);
866	mask_c.green =
867	mask_c.blue = 0;
868	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
869		977
		978	XRenderSetPictureFilter (cc.dpy, cc.src, name, xparams, nparams);
		979
870	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h);	980	XRenderComposite (cc.dpy, PictOpSrc, cc.src, 0, cc.dst, 0, 0, 0, 0, 0, 0, w, h);
871		981
872	XRenderFreePicture (dpy, src);
873	XRenderFreePicture (dpy, dst);
874	XRenderFreePicture (dpy, mask);
875
876	return img2;	982	return cc;
877	}	983	}
878		984
879	#endif	985	#endif
880		986

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Comparing rxvt-unicode/src/rxvtimg.C (file contents): Revision 1.95 by root, Fri Jun 15 18:36:26 2012 UTC vs. Revision 1.114 by sf-exg, Wed Jan 10 06:06:16 2024 UTC

Diff Legend

Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.95 by root, Fri Jun 15 18:36:26 2012 UTC vs.
Revision 1.114 by sf-exg, Wed Jan 10 06:06:16 2024 UTC