[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 1.107 by root, Thu May 22 18:54:33 2014 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->s->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	XRenderColor rc = {
		194	c.r * c.a / 65535,
		195	c.g * c.a / 65535,
		196	c.b * c.a / 65535,
		197	c.a
		198	};
		199	msk = XRenderCreateSolidFill (dpy, &rc);
		200	ecb_assume (msk);
		201	}
		202
		203	void fill (const rgba &c)
		204	{
		205	XRenderColor rc = {
		206	c.r * c.a / 65535,
		207	c.g * c.a / 65535,
		208	c.b * c.a / 65535,
		209	c.a
		210	};
		211
		212	XRenderFillRectangle (dpy, PictOpSrc, msk, &rc, 0, 0, 1, 1);
		213	}
		214
		215	operator rxvt_img *()
		216	{
		217	return dstimg;
		218	}
		219
		220	ecb_noinline
		221	~composer ()
		222	{
		223	XRenderFreePicture (dpy, src);
		224	XRenderFreePicture (dpy, dst);
		225	if (msk) XRenderFreePicture (dpy, msk);
		226	}
156	}	227	};
157		228	}
158	~pict ()
159	{
160	if (pic)
161	XRenderFreePicture (dpy, pic);
162	}
163	};
164	#endif
165		229
166	static XRenderPictFormat *	230	static XRenderPictFormat *
167	find_alpha_format_for (Display dpy, XRenderPictFormat format)	231	find_alpha_format_for (Display dpy, XRenderPictFormat format)
168	{	232	{
169	if (format->direct.alphaMask)	233	if (format->direct.alphaMask)
…		…
196	}	260	}
197		261
198	rxvt_img *	262	rxvt_img *
199	rxvt_img::new_from_root (rxvt_screen *s)	263	rxvt_img::new_from_root (rxvt_screen *s)
200	{	264	{
201	Display *dpy = s->display->dpy;	265	Display *dpy = s->dpy;
202	unsigned int root_pm_w, root_pm_h;	266	unsigned int root_pm_w, root_pm_h;
203	Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_XROOTPMAP_ID]);	267	Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa [XA_XROOTPMAP_ID]);
204	if (root_pixmap == None)	268	if (root_pixmap == None)
205	root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_ESETROOT_PMAP_ID]);	269	root_pixmap = s->display->get_pixmap_property (s->display->xa [XA_ESETROOT_PMAP_ID]);
206		270
207	if (root_pixmap == None)	271	if (root_pixmap == None)
208	return 0;	272	return 0;
209		273
210	Window wdummy;	274	Window wdummy;
…		…
233	# if HAVE_PIXBUF	297	# if HAVE_PIXBUF
234		298
235	rxvt_img *	299	rxvt_img *
236	rxvt_img::new_from_pixbuf (rxvt_screen s, GdkPixbuf pb)	300	rxvt_img::new_from_pixbuf (rxvt_screen s, GdkPixbuf pb)
237	{	301	{
238	Display *dpy = s->display->dpy;	302	Display *dpy = s->dpy;
239		303
240	int width = gdk_pixbuf_get_width (pb);	304	int width = gdk_pixbuf_get_width (pb);
241	int height = gdk_pixbuf_get_height (pb);	305	int height = gdk_pixbuf_get_height (pb);
242		306
243	if (width > 32767 \|\| height > 32767) // well, we could upload in chunks	307	if (width > 32767 \|\| height > 32767) // well, we could upload in chunks
…		…
285	for (int y = 0; y < height; y++)	349	for (int y = 0; y < height; y++)
286	{	350	{
287	unsigned char *src = row;	351	unsigned char *src = row;
288	uint32_t dst = (uint32_t )line;	352	uint32_t dst = (uint32_t )line;
289		353
290	if (!pb_has_alpha)
291	for (int x = 0; x < width; x++)	354	for (int x = 0; x < width; x++)
292	{	355	{
293	uint8_t r = *src++;	356	uint8_t r = *src++;
294	uint8_t g = *src++;	357	uint8_t g = *src++;
295	uint8_t b = *src++;	358	uint8_t b = *src++;
		359	uint8_t a = *src;
296		360
		361	// this is done so it can be jump-free, but newer gcc's clone inner the loop
		362	a = pb_has_alpha ? a : 255;
		363	src += pb_has_alpha;
		364
		365	r = (r * a + 127) / 255;
		366	g = (g * a + 127) / 255;
		367	b = (b * a + 127) / 255;
		368
297	uint32_t v = (255 << 24) \| (r << 16) \| (g << 8) \| b;	369	uint32_t v = (a << 24) \| (r << 16) \| (g << 8) \| b;
298		370
299	if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch)	371	if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch)
300	v = ecb_bswap32 (v);	372	v = ecb_bswap32 (v);
301		373
302	*dst++ = v;	374	*dst++ = v;
303	}	375	}
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		376
320	row += rowstride;	377	row += rowstride;
321	line += xi.bytes_per_line;	378	line += xi.bytes_per_line;
322	}	379	}
323		380
…		…
356	{	413	{
357	if (--ref->cnt)	414	if (--ref->cnt)
358	return;	415	return;
359		416
360	if (pm && ref->ours)	417	if (pm && ref->ours)
361	XFreePixmap (s->display->dpy, pm);	418	XFreePixmap (s->dpy, pm);
362		419
363	delete ref;	420	delete ref;
364	}	421	}
365		422
366	rxvt_img::~rxvt_img ()	423	rxvt_img::~rxvt_img ()
…		…
369	}	426	}
370		427
371	void	428	void
372	rxvt_img::alloc ()	429	rxvt_img::alloc ()
373	{	430	{
374	pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth);	431	pm = XCreatePixmap (s->dpy, s->display->root, w, h, format->depth);
375	ref = new pixref (w, h);	432	ref = new pixref (w, h);
		433	}
		434
		435	rxvt_img *
		436	rxvt_img::new_empty ()
		437	{
		438	rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
		439	img->alloc ();
		440
		441	return img;
376	}	442	}
377		443
378	Picture	444	Picture
379	rxvt_img::picture ()	445	rxvt_img::picture ()
380	{	446	{
381	Display *dpy = s->display->dpy;	447	Display *dpy = s->dpy;
382		448
383	XRenderPictureAttributes pa;	449	XRenderPictureAttributes pa;
384	pa.repeat = repeat;	450	pa.repeat = repeat;
385	Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);	451	Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
386		452
…		…
391	rxvt_img::unshare ()	457	rxvt_img::unshare ()
392	{	458	{
393	if (ref->cnt == 1 && ref->ours)	459	if (ref->cnt == 1 && ref->ours)
394	return;	460	return;
395		461
396	Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth);	462	Pixmap pm2 = XCreatePixmap (s->dpy, s->display->root, ref->w, ref->h, format->depth);
397	GC gc = XCreateGC (s->display->dpy, pm, 0, 0);	463	GC gc = XCreateGC (s->dpy, pm, 0, 0);
398	XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0);	464	XCopyArea (s->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0);
399	XFreeGC (s->display->dpy, gc);	465	XFreeGC (s->dpy, gc);
400		466
401	destroy ();	467	destroy ();
402		468
403	pm = pm2;	469	pm = pm2;
404	ref = new pixref (ref->w, ref->h);	470	ref = new pixref (ref->w, ref->h);
405	}	471	}
406		472
407	void	473	void
		474	rxvt_img::fill (const rgba &c, int x, int y, int w, int h)
		475	{
		476	XRenderColor rc = { c.r, c.g, c.b, c.a };
		477
		478	Display *dpy = s->dpy;
		479	Picture src = picture ();
		480	XRenderFillRectangle (dpy, PictOpSrc, src, &rc, x, y, w, h);
		481	XRenderFreePicture (dpy, src);
		482	}
		483
		484	void
408	rxvt_img::fill (const rgba &c)	485	rxvt_img::fill (const rgba &c)
409	{	486	{
410	XRenderColor rc = { c.r, c.g, c.b, c.a };	487	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	}	488	}
417		489
418	void	490	void
419	rxvt_img::add_alpha ()	491	rxvt_img::add_alpha ()
420	{	492	{
421	if (format->direct.alphaMask)	493	if (format->direct.alphaMask)
422	return;	494	return;
423		495
424	Display *dpy = s->display->dpy;
425
426	rxvt_img *img = new rxvt_img (s, find_alpha_format_for (dpy, format), x, y, w, h, repeat);	496	composer cc (this, new rxvt_img (s, find_alpha_format_for (s->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		497
432	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	498	XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w, h);
433		499
434	XRenderFreePicture (dpy, src);	500	rxvt_img *img = cc;
435	XRenderFreePicture (dpy, dst);
436		501
437	::swap (img->ref, ref);	502	::swap (img->ref, ref);
438	::swap (img->pm , pm );	503	::swap (img->pm , pm );
439		504
440	delete img;	505	delete img;
…		…
465	rxvt_img::blur (int rh, int rv)	530	rxvt_img::blur (int rh, int rv)
466	{	531	{
467	if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV))	532	if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV))
468	return clone ();	533	return clone ();
469		534
470	Display *dpy = s->display->dpy;	535	Display *dpy = s->dpy;
471	int size = max (rh, rv) * 2 + 1;	536	int size = max (rh, rv) * 2 + 1;
472	nv kernel = (nv )malloc (size * sizeof (nv));	537	nv kernel = (nv )malloc (size * sizeof (nv));
473	XFixed params = (XFixed )malloc ((size + 2) * sizeof (XFixed));	538	XFixed *params = rxvt_temp_buf<XFixed> (size + 2);
474	rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);	539	rxvt_img *img = new_empty ();
475	img->alloc ();
476		540
477	XRenderPictureAttributes pa;	541	XRenderPictureAttributes pa;
478	pa.repeat = RepeatPad;	542	pa.repeat = RepeatPad;
479	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);	543	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
480	Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);	544	Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
…		…
514	0, 0,	578	0, 0,
515	w, h);	579	w, h);
516	}	580	}
517		581
518	free (kernel);	582	free (kernel);
519	free (params);
520		583
521	XRenderFreePicture (dpy, src);	584	XRenderFreePicture (dpy, src);
522	XRenderFreePicture (dpy, dst);	585	XRenderFreePicture (dpy, dst);
523	XRenderFreePicture (dpy, tmp);	586	XRenderFreePicture (dpy, tmp);
524		587
525	return img;	588	return img;
526	}	589	}
527		590
528	static Picture	591	rxvt_img *
529	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha)	592	rxvt_img::muladd (nv mul, nv add)
530	{	593	{
531	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);	594	// STEP 1: double the image width, fill all odd columns with white (==1)
532		595
533	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);	596	composer cc (this, new rxvt_img (s, format, 0, 0, w * 2, h, repeat));
534	XRenderPictureAttributes pa;
535	pa.repeat = RepeatNormal;
536	pa.component_alpha = component_alpha;
537	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat \| CPComponentAlpha, &pa);
538		597
539	XFreePixmap (dpy, pixmap);	598	// why the hell does XRenderSetPictureTransform want a writable matrix :(
		599	// that keeps us from just static const'ing this matrix.
		600	XTransform h_double = {
		601	0x08000, 0, 0,
		602	0, 0x10000, 0,
		603	0, 0, 0x10000
		604	};
540		605
541	return mask;	606	XRenderSetPictureFilter (cc.dpy, cc.src, "nearest", 0, 0);
542	}	607	XRenderSetPictureTransform (cc.dpy, cc.src, &h_double);
		608	XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w * 2, h);
543		609
544	static void	610	cc.mask (false, 2, 1);
		611
		612	static const XRenderColor c0 = { 0, 0, 0, 0 };
		613	XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &c0, 0, 0, 1, 1);
		614	static const XRenderColor c1 = { 65535, 65535, 65535, 65535 };
		615	XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &c1, 1, 0, 1, 1);
		616
		617	Picture white = XRenderCreateSolidFill (cc.dpy, &c1);
		618
		619	XRenderComposite (cc.dpy, PictOpOver, white, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w * 2, h);
		620
		621	XRenderFreePicture (cc.dpy, white);
		622
		623	// STEP 2: convolve the image with a 3x1 filter
		624	// a 2x1 filter would obviously suffice, but given the total lack of specification
		625	// for xrender, I expect different xrender implementations to randomly diverge.
		626	// we also halve the image, and hope for the best (again, for lack of specs).
		627	composer cc2 (cc.dstimg);
		628
		629	XFixed kernel [] = {
		630	XDoubleToFixed (3), XDoubleToFixed (1),
		631	XDoubleToFixed (0), XDoubleToFixed (mul), XDoubleToFixed (add)
		632	};
		633
		634	XTransform h_halve = {
		635	0x20000, 0, 0,
		636	0, 0x10000, 0,
		637	0, 0, 0x10000
		638	};
		639
		640	XRenderSetPictureFilter (cc.dpy, cc2.src, "nearest", 0, 0);
		641	XRenderSetPictureTransform (cc.dpy, cc2.src, &h_halve);
		642	XRenderSetPictureFilter (cc.dpy, cc2.src, FilterConvolution, kernel, ecb_array_length (kernel));
		643
		644	XRenderComposite (cc.dpy, PictOpSrc, cc2.src, None, cc2.dst, 0, 0, 0, 0, 0, 0, w * 2, h);
		645
		646	return cc2;
		647	}
		648
		649	ecb_noinline static void
545	extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc)	650	extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc)
546	{	651	{
547	int32_t x = clamp (c, cl0, cl1);	652	int32_t x = clamp (c, cl0, cl1);
548	c -= x;	653	c -= x;
549	xc = x;	654	xc = x;
550	}	655	}
551		656
552	static bool	657	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)	658	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	{	659	{
555	extract (cl0, cl1, r, xr);	660	extract (cl0, cl1, r, xr);
556	extract (cl0, cl1, g, xg);	661	extract (cl0, cl1, g, xg);
557	extract (cl0, cl1, b, xb);	662	extract (cl0, cl1, b, xb);
…		…
563	void	668	void
564	rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a)	669	rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a)
565	{	670	{
566	unshare ();	671	unshare ();
567		672
568	Display *dpy = s->display->dpy;	673	Display *dpy = s->dpy;
569	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);	674	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
570		675
571	// loop should not be needed for brightness, as only -1..1 makes sense	676	// loop should not be needed for brightness, as only -1..1 makes sense
572	//while (r \| g \| b \| a)	677	//while (r \| g \| b \| a)
573	{	678	{
…		…
597	rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a)	702	rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a)
598	{	703	{
599	if (r < 0 \|\| g < 0 \|\| b < 0 \|\| a < 0)	704	if (r < 0 \|\| g < 0 \|\| b < 0 \|\| a < 0)
600	rxvt_fatal ("rxvt_img::contrast does not support negative values.\n");	705	rxvt_fatal ("rxvt_img::contrast does not support negative values.\n");
601		706
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)	707	// premultiply (yeah, these are not exact, sue me or fix it)
607	r = (r * (a >> 8)) >> 8;	708	r = (r * (a >> 8)) >> 8;
608	g = (g * (a >> 8)) >> 8;	709	g = (g * (a >> 8)) >> 8;
609	b = (b * (a >> 8)) >> 8;	710	b = (b * (a >> 8)) >> 8;
610		711
611	Display *dpy = s->display->dpy;	712	composer cc (this);
		713	rxvt_img *img = cc;
		714	img->fill (rgba (0, 0, 0, 0));
612		715
613	Picture src = picture ();	716	cc.mask (true);
614	Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
615	Picture mul = create_xrender_mask (dpy, pm, True, True);
616		717
617	//TODO: this operator does not yet implement some useful contrast	718	//TODO: this operator does not yet implement some useful contrast
618	while (r \| g \| b \| a)	719	while (r \| g \| b \| a)
619	{	720	{
620	unsigned short xr, xg, xb, xa;	721	unsigned short xr, xg, xb, xa;
621	XRenderColor mask_c;	722	XRenderColor mask_c;
622		723
623	if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))	724	if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
624	{	725	{
625	XRenderFillRectangle (dpy, PictOpSrc, mul, &mask_c, 0, 0, 1, 1);	726	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);	727	XRenderComposite (cc.dpy, PictOpAdd, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h);
627	}	728	}
628	}	729	}
629
630	XRenderFreePicture (dpy, mul);
631	XRenderFreePicture (dpy, dst);
632	XRenderFreePicture (dpy, src);
633		730
634	::swap (img->ref, ref);	731	::swap (img->ref, ref);
635	::swap (img->pm , pm );	732	::swap (img->pm , pm );
636		733
637	delete img;	734	delete img;
…		…
640	void	737	void
641	rxvt_img::draw (rxvt_img *img, int op, nv mask)	738	rxvt_img::draw (rxvt_img *img, int op, nv mask)
642	{	739	{
643	unshare ();	740	unshare ();
644		741
645	Display *dpy = s->display->dpy;	742	composer cc (img, this);
646	Picture src = img->picture ();
647	Picture dst = picture ();
648	Picture mask_p = 0;
649		743
650	if (mask != 1.)	744	if (mask != 1.)
651	{	745	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		746
657	XRenderComposite (dpy, op, src, mask_p, dst, x - img->x, y - img->y, 0, 0, 0, 0, w, h);	747	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	}	748	}
665		749
666	rxvt_img *	750	rxvt_img *
667	rxvt_img::clone ()	751	rxvt_img::clone ()
668	{	752	{
…		…
672	rxvt_img *	756	rxvt_img *
673	rxvt_img::reify ()	757	rxvt_img::reify ()
674	{	758	{
675	if (x == 0 && y == 0 && w == ref->w && h == ref->h)	759	if (x == 0 && y == 0 && w == ref->w && h == ref->h)
676	return clone ();	760	return clone ();
677
678	Display *dpy = s->display->dpy;
679		761
680	// add an alpha channel if...	762	// add an alpha channel if...
681	bool alpha = !format->direct.alphaMask // pixmap has none yet	763	bool alpha = !format->direct.alphaMask // pixmap has none yet
682	&& (x \|\| y) // we need one because of non-zero offset	764	&& (x \|\| y) // we need one because of non-zero offset
683	&& repeat == RepeatNone; // and we have no good pixels to fill with	765	&& repeat == RepeatNone; // and we have no good pixels to fill with
684		766
685	rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat);	767	composer cc (this, new rxvt_img (s, alpha ? find_alpha_format_for (s->dpy, format) : format,
686	img->alloc ();	768	0, 0, w, h, repeat));
687		769
688	Picture src = picture ();	770	if (repeat == RepeatNone)
689	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
690
691	if (alpha)
692	{	771	{
693	XRenderColor rc = { 0, 0, 0, 0 };	772	XRenderColor rc = { 0, 0, 0, 0 };
694	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles	773	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);	774	XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, x, y, ref->w, ref->h);
696	}	775	}
697	else	776	else
698	XRenderComposite (dpy, PictOpSrc, src, None, dst, -x, -y, 0, 0, 0, 0, w, h);	777	XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, -x, -y, 0, 0, 0, 0, w, h);
699		778
700	XRenderFreePicture (dpy, src);
701	XRenderFreePicture (dpy, dst);
702
703	return img;	779	return cc;
704	}	780	}
705		781
706	rxvt_img *	782	rxvt_img *
707	rxvt_img::sub_rect (int x, int y, int width, int height)	783	rxvt_img::sub_rect (int x, int y, int width, int height)
708	{	784	{
…		…
734	rxvt_img::transform (const nv *matrix)	810	rxvt_img::transform (const nv *matrix)
735	{	811	{
736	mat3x3 m (matrix);	812	mat3x3 m (matrix);
737		813
738	// calculate new pixel bounding box coordinates	814	// calculate new pixel bounding box coordinates
739	nv r[2], rmin[2], rmax[2];	815	nv rmin[2], rmax[2];
740		816
741	for (int i = 0; i < 2; ++i)	817	for (int i = 0; i < 2; ++i)
742	{	818	{
743	nv v;	819	nv v;
744		820
745	v = m.apply1 (i, 0+x, 0+y); rmin [i] = rmax [i] = v; r [i] = v;	821	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);	822	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);	823	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);	824	v = m.apply1 (i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v);
749	}	825	}
750		826
…		…
756	int ny = floor (rmin [1]);	832	int ny = floor (rmin [1]);
757		833
758	int new_width = ceil (rmax [0] - rmin [0]);	834	int new_width = ceil (rmax [0] - rmin [0]);
759	int new_height = ceil (rmax [1] - rmin [1]);	835	int new_height = ceil (rmax [1] - rmin [1]);
760		836
761	m = mat3x3::translate (-x, -y) * m * mat3x3::translate (x, y);	837	mat3x3 inv = (mat3x3::translate (-x, -y) * m * mat3x3::translate (x, y)).inverse ();
762		838
763	mat3x3 inv = m.invert ();	839	composer cc (this, new rxvt_img (s, 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		840
772	XTransform xfrm;	841	XTransform xfrm;
773		842
774	for (int i = 0; i < 3; ++i)	843	for (int i = 0; i < 3; ++i)
775	for (int j = 0; j < 3; ++j)	844	for (int j = 0; j < 3; ++j)
776	xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]);	845	xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]);
777		846
778	XRenderSetPictureFilter (dpy, src, "good", 0, 0);	847	XRenderSetPictureFilter (cc.dpy, cc.src, "good", 0, 0);
779	XRenderSetPictureTransform (dpy, src, &xfrm);	848	XRenderSetPictureTransform (cc.dpy, cc.src, &xfrm);
780	XRenderComposite (dpy, PictOpSrc, src, None, dst, sx, sy, 0, 0, 0, 0, new_width, new_height);	849	XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, sx, sy, 0, 0, 0, 0, new_width, new_height);
781		850
782	XRenderFreePicture (dpy, src);
783	XRenderFreePicture (dpy, dst);
784
785	return img;	851	return cc;
786	}	852	}
787		853
788	rxvt_img *	854	rxvt_img *
789	rxvt_img::scale (int new_width, int new_height)	855	rxvt_img::scale (int new_width, int new_height)
790	{	856	{
…		…
803	}	869	}
804		870
805	rxvt_img *	871	rxvt_img *
806	rxvt_img::rotate (int cx, int cy, nv phi)	872	rxvt_img::rotate (int cx, int cy, nv phi)
807	{	873	{
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);	874	move (-cx, -cy);
815	rxvt_img *img = transform (mat3x3::rotate (phi));	875	rxvt_img *img = transform (mat3x3::rotate (phi));
816	move ( cx, cy);	876	move ( cx, cy);
817	img->move (cx, cy);	877	img->move (cx, cy);
818		878
…		…
823	rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg)	883	rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg)
824	{	884	{
825	if (new_format == format)	885	if (new_format == format)
826	return clone ();	886	return clone ();
827		887
828	rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat);	888	composer cc (this, new rxvt_img (s, new_format, x, y, w, h, repeat));
829	img->alloc ();
830		889
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;	890	int op = PictOpSrc;
835		891
836	if (format->direct.alphaMask && !new_format->direct.alphaMask)	892	if (format->direct.alphaMask && !new_format->direct.alphaMask)
837	{	893	{
838	// does it have to be that complicated	894	// does it have to be that complicated
839	XRenderColor rc = { bg.r, bg.g, bg.b, bg.a };	895	XRenderColor rc = { bg.r, bg.g, bg.b, bg.a };
840	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);	896	XRenderFillRectangle (cc.dpy, PictOpSrc, cc.dst, &rc, 0, 0, w, h);
841		897
842	op = PictOpOver;	898	op = PictOpOver;
843	}	899	}
844		900
845	XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	901	XRenderComposite (cc.dpy, op, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w, h);
846		902
847	XRenderFreePicture (dpy, src);	903	return cc;
848	XRenderFreePicture (dpy, dst);	904	}
		905
		906	rxvt_img *
		907	rxvt_img::tint (const rgba &c)
		908	{
		909	composer cc (this);
		910	cc.mask (true);
		911	cc.fill (c);
		912
		913	XRenderComposite (cc.dpy, PictOpSrc, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h);
		914
		915	return cc;
		916	}
		917
		918	rxvt_img *
		919	rxvt_img::shade (nv factor, rgba c)
		920	{
		921	clamp_it (factor, -1., 1.);
		922	factor++;
		923
		924	if (factor > 1)
		925	{
		926	c.r = c.r * (2 - factor);
		927	c.g = c.g * (2 - factor);
		928	c.b = c.b * (2 - factor);
		929	}
		930	else
		931	{
		932	c.r = c.r * factor;
		933	c.g = c.g * factor;
		934	c.b = c.b * factor;
		935	}
		936
		937	rxvt_img *img = this->tint (c);
		938
		939	if (factor > 1)
		940	{
		941	c.a = 0xffff;
		942	c.r =
		943	c.g =
		944	c.b = 0xffff * (factor - 1);
		945
		946	img->brightness (c.r, c.g, c.b, c.a);
		947	}
849		948
850	return img;	949	return img;
851	}	950	}
852		951
853	rxvt_img *	952	rxvt_img *
854	rxvt_img::blend (rxvt_img *img, nv factor)	953	rxvt_img::filter (const char name, int nparams, nv params)
855	{	954	{
856	rxvt_img *img2 = clone ();	955	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		956
862	XRenderColor mask_c;	957	XFixed *xparams = rxvt_temp_buf<XFixed> (nparams);
863		958
864	mask_c.alpha = float_to_component (factor);	959	for (int i = 0; i < nparams; ++i)
865	mask_c.red =	960	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		961
		962	XRenderSetPictureFilter (cc.dpy, cc.src, name, xparams, nparams);
		963
870	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h);	964	XRenderComposite (cc.dpy, PictOpSrc, cc.src, 0, cc.dst, 0, 0, 0, 0, 0, 0, w, h);
871		965
872	XRenderFreePicture (dpy, src);
873	XRenderFreePicture (dpy, dst);
874	XRenderFreePicture (dpy, mask);
875
876	return img2;	966	return cc;
877	}	967	}
878		968
879	#endif	969	#endif
880		970

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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 1.107 by root, Thu May 22 18:54:33 2014 UTC

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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 1.107 by root, Thu May 22 18:54:33 2014 UTC