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

Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.18 by sf-exg, Tue Jun 5 12:30:37 2012 UTC vs.
Revision 1.94 by root, Fri Jun 15 18:10:40 2012 UTC

…		…
		1	#include <string.h>
1	#include <math.h>	2	#include <math.h>
2	#include "../config.h"	3	#include "../config.h"
3	#include "rxvt.h"	4	#include "rxvt.h"
4		5
5	#if HAVE_IMG	6	#if HAVE_IMG
6		7
7	#define float_to_component(d) ((d) * 65535.99)	8	typedef rxvt_img::nv nv;
8		9
		10	namespace
		11	{
		12
		13	struct mat3x3
		14	{
		15	nv v[3][3];
		16
		17	mat3x3 ()
		18	{
		19	}
		20
		21	mat3x3 (nv matrix[3][3])
		22	{
		23	memcpy (v, matrix, sizeof (v));
		24	}
		25
		26	mat3x3 (nv v11, nv v12, nv v13, nv v21, nv v22, nv v23, nv v31, nv v32, nv v33)
		27	{
		28	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;
		30	v[2][0] = v31; v[2][1] = v32; v[2][2] = v33;
		31	}
		32
		33	mat3x3 invert ();
		34
		35	nv *operator [](int i) { return &v[i][0]; }
		36	const nv *operator [](int i) const { return &v[i][0]; }
		37
		38	// quite inefficient, hopefully gcc pulls the w calc out of any loops
		39	nv apply1 (int i, nv x, nv y)
		40	{
		41	mat3x3 &m = *this;
		42
		43	nv v = m[i][0] * x + m[i][1] * y + m[i][2];
		44	nv w = m[2][0] * x + m[2][1] * y + m[2][2];
		45
		46	return v * (1. / w);
		47	}
		48
		49	static mat3x3 translate (nv x, nv y);
		50	};
		51
		52	mat3x3
		53	mat3x3::invert ()
		54	{
		55	mat3x3 &m = *this;
		56	mat3x3 inv;
		57
		58	nv s0 = m[2][2] * m[1][1] - m[2][1] * m[1][2];
		59	nv s1 = m[2][1] * m[0][2] - m[2][2] * m[0][1];
		60	nv s2 = m[1][2] * m[0][1] - m[1][1] * m[0][2];
		61
		62	nv invdet = 1. / (m[0][0] * s0 + m[1][0] * s1 + m[2][0] * s2);
		63
		64	inv[0][0] = invdet * s0;
		65	inv[0][1] = invdet * s1;
		66	inv[0][2] = invdet * s2;
		67
		68	inv[1][0] = invdet * (m[2][0] * m[1][2] - m[2][2] * m[1][0]);
		69	inv[1][1] = invdet * (m[2][2] * m[0][0] - m[2][0] * m[0][2]);
		70	inv[1][2] = invdet * (m[1][0] * m[0][2] - m[1][2] * m[0][0]);
		71
		72	inv[2][0] = invdet * (m[2][1] * m[1][0] - m[2][0] * m[1][1]);
		73	inv[2][1] = invdet * (m[2][0] * m[0][1] - m[2][1] * m[0][0]);
		74	inv[2][2] = invdet * (m[1][1] * m[0][0] - m[1][0] * m[0][1]);
		75
		76	return inv;
		77	}
		78
		79	static mat3x3
		80	operator *(const mat3x3 &a, const mat3x3 &b)
		81	{
		82	mat3x3 r;
		83
		84	for (int i = 0; i < 3; ++i)
		85	for (int j = 0; j < 3; ++j)
		86	r[i][j] = a[i][0] * b[0][j]
		87	+ a[i][1] * b[1][j]
		88	+ a[i][2] * b[2][j];
		89
		90	return r;
		91	}
		92
		93	mat3x3
		94	mat3x3::translate (nv x, nv y)
		95	{
		96	return mat3x3 (
		97	1, 0, x,
		98	0, 1, y,
		99	0, 0, 1
		100	);
		101	}
		102
		103	}
		104
		105	#if 0
		106	struct pict
		107	{
		108	Display *dpy;
		109	Picture pic;
		110
		111	operator Picture () const
		112	{
		113	return pic;
		114	}
		115
		116	pict ()
		117	: pic (0)
		118	{
		119	}
		120
		121	pict (rxvt_img img, XRenderPictFormat format = 0)
		122	: dpy (img->s->display->dpy)
		123	{
		124	XRenderPictureAttributes pa;
		125	pa.repeat = img->repeat;
		126	pic = XRenderCreatePicture (dpy, img->pm, format ? format : img->format, CPRepeat, &pa);
		127	}
		128
		129	~pict ()
		130	{
		131	if (pic)
		132	XRenderFreePicture (dpy, pic);
		133	}
		134	};
		135	#endif
		136
		137	static XRenderPictFormat *
		138	find_alpha_format_for (Display dpy, XRenderPictFormat format)
		139	{
		140	if (format->direct.alphaMask)
		141	return format; // already has alpha
		142
		143	// try to find a suitable alpha format, one bit alpha is enough for our purposes
		144	if (format->type == PictTypeDirect)
		145	for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n)
		146	if (f->direct.alphaMask
		147	&& f->type == PictTypeDirect
		148	&& ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask )
		149	&& ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask)
		150	&& ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask ))
		151	return f;
		152
		153	// should be a very good fallback
		154	return XRenderFindStandardFormat (dpy, PictStandardARGB32);
		155	}
		156
9	rxvt_img::rxvt_img (rxvt_screen screen, XRenderPictFormat format, int width, int height)	157	rxvt_img::rxvt_img (rxvt_screen screen, XRenderPictFormat format, int x, int y, int width, int height, int repeat)
10	: s(screen), w(width), h(height), format(format), shared(false)
11	{
12	pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth);
13	}
14
15	rxvt_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)	158	: s(screen), x(x), y(y), w(width), h(height), format(format), repeat(repeat),
		159	pm(0), ref(0)
17	{	160	{
		161	}
		162
		163	rxvt_img::rxvt_img (const rxvt_img &img)
		164	: 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)
		165	{
		166	++ref->cnt;
		167	}
		168
		169	rxvt_img *
		170	rxvt_img::new_from_root (rxvt_screen *s)
		171	{
		172	Display *dpy = s->display->dpy;
		173	unsigned int root_pm_w, root_pm_h;
		174	Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_XROOTPMAP_ID]);
		175	if (root_pixmap == None)
		176	root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_ESETROOT_PMAP_ID]);
		177
		178	if (root_pixmap == None)
		179	return 0;
		180
		181	Window wdummy;
		182	int idummy;
		183	unsigned int udummy;
		184
		185	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pm_w, &root_pm_h, &udummy, &udummy))
		186	return 0;
		187
		188	rxvt_img *img = new rxvt_img (
		189	s,
		190	XRenderFindVisualFormat (dpy, DefaultVisual (dpy, s->display->screen)),
		191	0,
		192	0,
		193	root_pm_w,
		194	root_pm_h
		195	);
		196
		197	img->pm = root_pixmap;
		198	img->ref = new pixref (root_pm_w, root_pm_h);
		199	img->ref->ours = false;
		200
		201	return img;
		202	}
		203
		204	# if HAVE_PIXBUF
		205
		206	rxvt_img *
		207	rxvt_img::new_from_pixbuf (rxvt_screen s, GdkPixbuf pb)
		208	{
		209	Display *dpy = s->display->dpy;
		210
		211	int width = gdk_pixbuf_get_width (pb);
		212	int height = gdk_pixbuf_get_height (pb);
		213
		214	if (width > 32767 \|\| height > 32767) // well, we could upload in chunks
		215	rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big (maximum size 32768x32768).\n");
		216
		217	// since we require rgb24/argb32 formats from xrender we assume
		218	// that both 24 and 32 bpp MUST be supported by any screen that supports xrender
		219
		220	int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
		221
		222	XImage xi;
		223
		224	xi.width = width;
		225	xi.height = height;
		226	xi.xoffset = 0;
		227	xi.format = ZPixmap;
		228	xi.byte_order = ImageByteOrder (dpy);
		229	xi.bitmap_unit = 0; //XY only, unused
		230	xi.bitmap_bit_order = 0; //XY only, unused
		231	xi.bitmap_pad = BitmapPad (dpy);
		232	xi.depth = 32;
		233	xi.bytes_per_line = 0;
		234	xi.bits_per_pixel = 32; //Z only
		235	xi.red_mask = 0x00000000; //Z only, unused
		236	xi.green_mask = 0x00000000; //Z only, unused
		237	xi.blue_mask = 0x00000000; //Z only, unused
		238	xi.obdata = 0; // probably unused
		239
		240	bool byte_order_mismatch = byte_order != xi.byte_order;
		241
		242	if (!XInitImage (&xi))
		243	rxvt_fatal ("unable to initialise ximage, please report.\n");
		244
		245	if (height > INT_MAX / xi.bytes_per_line)
		246	rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n");
		247
		248	xi.data = (char )rxvt_malloc (height xi.bytes_per_line);
		249
		250	int rowstride = gdk_pixbuf_get_rowstride (pb);
		251	bool pb_has_alpha = gdk_pixbuf_get_has_alpha (pb);
		252	unsigned char *row = gdk_pixbuf_get_pixels (pb);
		253
		254	char *line = xi.data;
		255
		256	for (int y = 0; y < height; y++)
		257	{
		258	unsigned char *src = row;
		259	uint32_t dst = (uint32_t )line;
		260
		261	if (!pb_has_alpha)
		262	for (int x = 0; x < width; x++)
		263	{
		264	uint8_t r = *src++;
		265	uint8_t g = *src++;
		266	uint8_t b = *src++;
		267
		268	uint32_t v = (255 << 24) \| (r << 16) \| (g << 8) \| b;
		269
		270	if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch)
		271	v = ecb_bswap32 (v);
		272
		273	*dst++ = v;
		274	}
		275	else
		276	for (int x = 0; x < width; x++)
		277	{
		278	uint32_t v = (uint32_t )src; src += 4;
		279
		280	if (ecb_big_endian ())
		281	v = ecb_bswap32 (v);
		282
		283	v = ecb_rotl32 (v, 8); // abgr to bgra
		284
		285	if (!byte_order_mismatch)
		286	v = ecb_bswap32 (v);
		287
		288	*dst++ = v;
		289	}
		290
		291	row += rowstride;
		292	line += xi.bytes_per_line;
		293	}
		294
		295	rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, PictStandardARGB32), 0, 0, width, height);
		296	img->alloc ();
		297
		298	GC gc = XCreateGC (dpy, img->pm, 0, 0);
		299	XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height);
		300	XFreeGC (dpy, gc);
		301
		302	free (xi.data);
		303
		304	return img;
18	}	305	}
19		306
20	rxvt_img *	307	rxvt_img *
21	rxvt_img::new_from_file (rxvt_screen s, const char filename)	308	rxvt_img::new_from_file (rxvt_screen s, const char filename)
22	{	309	{
24	GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err);	311	GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err);
25		312
26	if (!pb)	313	if (!pb)
27	rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message);	314	rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message);
28		315
29	rxvt_img *img = new rxvt_img (	316	rxvt_img *img = new_from_pixbuf (s, pb);
30	s,
31	XRenderFindStandardFormat (s->display->dpy, gdk_pixbuf_get_has_alpha (pb) ? PictStandardARGB32 : PictStandardRGB24),
32	gdk_pixbuf_get_width (pb),
33	gdk_pixbuf_get_height (pb)
34	);
35		317
36	img->render_pixbuf (pb, 0, 0, img->w, img->h, 0, 0);	318	g_object_unref (pb);
37		319
		320	return img;
		321	}
		322
		323	# endif
		324
		325	void
		326	rxvt_img::destroy ()
		327	{
		328	if (--ref->cnt)
38	return img;	329	return;
		330
		331	if (pm && ref->ours)
		332	XFreePixmap (s->display->dpy, pm);
		333
		334	delete ref;
39	}	335	}
40		336
41	rxvt_img::~rxvt_img ()	337	rxvt_img::~rxvt_img ()
42	{	338	{
43	if (!shared)	339	destroy ();
44	XFreePixmap (s->display->dpy, pm);	340	}
		341
		342	void
		343	rxvt_img::alloc ()
		344	{
		345	pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth);
		346	ref = new pixref (w, h);
		347	}
		348
		349	Picture
		350	rxvt_img::picture ()
		351	{
		352	Display *dpy = s->display->dpy;
		353
		354	XRenderPictureAttributes pa;
		355	pa.repeat = repeat;
		356	Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
		357
		358	return pic;
45	}	359	}
46		360
47	void	361	void
48	rxvt_img::unshare ()	362	rxvt_img::unshare ()
49	{	363	{
50	if (!shared)	364	if (ref->cnt == 1 && ref->ours)
51	return;	365	return;
52		366
53	rxvt_img *img = clone ();	367	Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth);
		368	GC gc = XCreateGC (s->display->dpy, pm, 0, 0);
		369	XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0);
		370	XFreeGC (s->display->dpy, gc);
54		371
55	::swap (pm , img->pm);	372	destroy ();
56	::swap (shared, img->shared);	373
		374	pm = pm2;
		375	ref = new pixref (ref->w, ref->h);
		376	}
		377
		378	void
		379	rxvt_img::fill (const rgba &c)
		380	{
		381	XRenderColor rc = { c.r, c.g, c.b, c.a };
		382
		383	Display *dpy = s->display->dpy;
		384	Picture src = picture ();
		385	XRenderFillRectangle (dpy, PictOpSrc, src, &rc, 0, 0, w, h);
		386	XRenderFreePicture (dpy, src);
		387	}
		388
		389	void
		390	rxvt_img::add_alpha ()
		391	{
		392	if (format->direct.alphaMask)
		393	return;
		394
		395	Display *dpy = s->display->dpy;
		396
		397	rxvt_img *img = new rxvt_img (s, find_alpha_format_for (dpy, format), x, y, w, h, repeat);
		398	img->alloc ();
		399
		400	Picture src = picture ();
		401	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
		402
		403	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
		404
		405	XRenderFreePicture (dpy, src);
		406	XRenderFreePicture (dpy, dst);
		407
		408	::swap (img->ref, ref);
		409	::swap (img->pm , pm );
57		410
58	delete img;	411	delete img;
59	}	412	}
60		413
61	void
62	rxvt_img::fill (const rxvt_color &c)
63	{
64	XGCValues gcv;
65	gcv.foreground = c;
66	GC gc = XCreateGC (s->display->dpy, pm, GCForeground, &gcv);
67	XFillRectangle (s->display->dpy, pm, gc, 0, 0, w, h);
68	XFreeGC (s->display->dpy, gc);
69	}
70
71	static void	414	static void
72	get_gaussian_kernel (int radius, int width, double kernel, XFixed params)	415	get_gaussian_kernel (int radius, int width, nv kernel, XFixed params)
73	{	416	{
74	double sigma = radius / 2.0;	417	nv sigma = radius / 2.0;
75	double scale = sqrt (2.0 * M_PI) * sigma;	418	nv scale = sqrt (2.0 * M_PI) * sigma;
76	double sum = 0.0;	419	nv sum = 0.0;
77		420
78	for (int i = 0; i < width; i++)	421	for (int i = 0; i < width; i++)
79	{	422	{
80	double x = i - width / 2;	423	nv x = i - width / 2;
81	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;	424	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
82	sum += kernel[i];	425	sum += kernel[i];
83	}	426	}
84		427
85	params[0] = XDoubleToFixed (width);	428	params[0] = XDoubleToFixed (width);
…		…
87		430
88	for (int i = 0; i < width; i++)	431	for (int i = 0; i < width; i++)
89	params[i+2] = XDoubleToFixed (kernel[i] / sum);	432	params[i+2] = XDoubleToFixed (kernel[i] / sum);
90	}	433	}
91		434
92	void	435	rxvt_img *
93	rxvt_img::blur (int rh, int rv)	436	rxvt_img::blur (int rh, int rv)
94	{	437	{
95	if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV))	438	if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV))
96	return;	439	return clone ();
97		440
98	Display *dpy = s->display->dpy;	441	Display *dpy = s->display->dpy;
99	int size = max (rh, rv) * 2 + 1;	442	int size = max (rh, rv) * 2 + 1;
100	double kernel = (double )malloc (size * sizeof (double));	443	nv kernel = (nv )malloc (size * sizeof (nv));
101	XFixed params = (XFixed )malloc ((size + 2) * sizeof (XFixed));	444	XFixed params = (XFixed )malloc ((size + 2) * sizeof (XFixed));
		445	rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
		446	img->alloc ();
102		447
103	XRenderPictureAttributes pa;	448	XRenderPictureAttributes pa;
104
105	pa.repeat = RepeatPad;	449	pa.repeat = RepeatPad;
106	Picture src = XRenderCreatePicture (dpy, pm , format, CPRepeat, &pa);	450	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
		451	Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
		452
107	Pixmap tmp = XCreatePixmap (dpy, pm, w, h, format->depth);	453	Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth);
108	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);	454	Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa);
109	XFreePixmap (dpy, tmp);	455	XFreePixmap (dpy, tmp_pm);
110		456
111	if (kernel && params)	457	if (kernel && params)
112	{	458	{
113	size = rh * 2 + 1;	459	size = rh * 2 + 1;
114	get_gaussian_kernel (rh, size, kernel, params);	460	get_gaussian_kernel (rh, size, kernel, params);
115		461
116	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	462	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
117	XRenderComposite (dpy,	463	XRenderComposite (dpy,
118	PictOpSrc,	464	PictOpSrc,
119	src,	465	src,
		466	None,
		467	tmp,
		468	0, 0,
		469	0, 0,
		470	0, 0,
		471	w, h);
		472
		473	size = rv * 2 + 1;
		474	get_gaussian_kernel (rv, size, kernel, params);
		475	::swap (params[0], params[1]);
		476
		477	XRenderSetPictureFilter (dpy, tmp, FilterConvolution, params, size+2);
		478	XRenderComposite (dpy,
		479	PictOpSrc,
		480	tmp,
120	None,	481	None,
121	dst,	482	dst,
122	0, 0,	483	0, 0,
123	0, 0,	484	0, 0,
124	0, 0,	485	0, 0,
125	w, h);	486	w, h);
126
127	::swap (src, dst);
128
129	size = rv * 2 + 1;
130	get_gaussian_kernel (rv, size, kernel, params);
131	::swap (params[0], params[1]);
132
133	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
134	XRenderComposite (dpy,
135	PictOpSrc,
136	src,
137	None,
138	dst,
139	0, 0,
140	0, 0,
141	0, 0,
142	w, h);
143	}	487	}
144		488
145	free (kernel);	489	free (kernel);
146	free (params);	490	free (params);
		491
147	XRenderFreePicture (dpy, src);	492	XRenderFreePicture (dpy, src);
148	XRenderFreePicture (dpy, dst);	493	XRenderFreePicture (dpy, dst);
		494	XRenderFreePicture (dpy, tmp);
		495
		496	return img;
149	}	497	}
150		498
151	static Picture	499	static Picture
152	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb)	500	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha)
153	{	501	{
154	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);	502	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);
155		503
156	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);	504	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);
157	XRenderPictureAttributes pa;	505	XRenderPictureAttributes pa;
158	pa.repeat = True;	506	pa.repeat = RepeatNormal;
		507	pa.component_alpha = component_alpha;
159	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);	508	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat \| CPComponentAlpha, &pa);
160		509
161	XFreePixmap (dpy, pixmap);	510	XFreePixmap (dpy, pixmap);
162		511
163	return mask;	512	return mask;
164	}	513	}
165		514
		515	static void
		516	extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc)
		517	{
		518	int32_t x = clamp (c, cl0, cl1);
		519	c -= x;
		520	xc = x;
		521	}
		522
		523	static bool
		524	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)
		525	{
		526	extract (cl0, cl1, r, xr);
		527	extract (cl0, cl1, g, xg);
		528	extract (cl0, cl1, b, xb);
		529	extract (cl0, cl1, a, xa);
		530
		531	return xr \| xg \| xb \| xa;
		532	}
		533
166	void	534	void
167	rxvt_img::brightness (double r, double g, double b, double a)	535	rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a)
168	{	536	{
		537	unshare ();
		538
169	Display *dpy = s->display->dpy;	539	Display *dpy = s->display->dpy;
170	Picture src = create_xrender_mask (dpy, pm, True);
171	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);	540	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
172		541
		542	// loop should not be needed for brightness, as only -1..1 makes sense
		543	//while (r \| g \| b \| a)
		544	{
		545	unsigned short xr, xg, xb, xa;
173	XRenderColor mask_c;	546	XRenderColor mask_c;
174	mask_c.red = float_to_component (r);	547
175	mask_c.green = float_to_component (g);	548	if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
176	mask_c.blue = float_to_component (b);
177	mask_c.alpha = float_to_component (a);
178	XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1);	549	XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
179		550
180	XRenderComposite (dpy, PictOpAdd, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	551	if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
		552	{
		553	XRenderColor mask_w = { 65535, 65535, 65535, 65535 };
		554	XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
		555	mask_c.red = -mask_c.red; //TODO: verify that doing clamp, assign, and negation does the right thing
		556	mask_c.green = -mask_c.green;
		557	mask_c.blue = -mask_c.blue;
		558	mask_c.alpha = -mask_c.alpha;
		559	XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
		560	XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
		561	}
		562	}
		563
		564	XRenderFreePicture (dpy, dst);
181	}	565	}
182		566
183	void	567	void
184	rxvt_img::contrast (double r, double g, double b, double a)	568	rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a)
185	{	569	{
186	if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL))	570	if (r < 0 \|\| g < 0 \|\| b < 0 \|\| a < 0)
187	return;	571	rxvt_fatal ("rxvt_img::contrast does not support negative values.\n");
188		572
		573	rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
		574	img->alloc ();
		575	img->fill (rgba (0, 0, 0, 0));
		576
		577	// premultiply (yeah, these are not exact, sue me or fix it)
		578	r = (r * (a >> 8)) >> 8;
		579	g = (g * (a >> 8)) >> 8;
		580	b = (b * (a >> 8)) >> 8;
		581
189	Display *dpy = s->display->dpy;	582	Display *dpy = s->display->dpy;
190	Picture src = create_xrender_mask (dpy, pm, True);	583
		584	Picture src = picture ();
191	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);	585	Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
		586	Picture mul = create_xrender_mask (dpy, pm, True, True);
192		587
		588	//TODO: this operator does not yet implement some useful contrast
		589	while (r \| g \| b \| a)
		590	{
		591	unsigned short xr, xg, xb, xa;
193	XRenderColor mask_c;	592	XRenderColor mask_c;
194	mask_c.red = float_to_component (r);
195	mask_c.green = float_to_component (g);
196	mask_c.blue = float_to_component (b);
197	mask_c.alpha = float_to_component (a);
198	XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1);
199		593
200	XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	594	if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
201	}
202
203	bool
204	rxvt_img::render_pixbuf (GdkPixbuf *pixbuf, int src_x, int src_y, int width, int height, int dst_x, int dst_y)
205	{
206	Display *dpy = s->display->dpy;
207
208	if (s->visual->c_class != TrueColor)
209	return false;
210
211	uint32_t red_mask, green_mask, blue_mask, alpha_mask;
212
213	red_mask = (uint32_t)format->direct.redMask << format->direct.red;
214	green_mask = (uint32_t)format->direct.greenMask << format->direct.green;
215	blue_mask = (uint32_t)format->direct.blueMask << format->direct.blue;
216	alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;
217
218	int width_r = ecb_popcount32 (red_mask);
219	int width_g = ecb_popcount32 (green_mask);
220	int width_b = ecb_popcount32 (blue_mask);
221	int width_a = ecb_popcount32 (alpha_mask);
222
223	if (width_r > 8 \|\| width_g > 8 \|\| width_b > 8 \|\| width_a > 8)
224	return false;
225
226	int sh_r = ecb_ctz32 (red_mask);
227	int sh_g = ecb_ctz32 (green_mask);
228	int sh_b = ecb_ctz32 (blue_mask);
229	int sh_a = ecb_ctz32 (alpha_mask);
230
231	if (width > 32767 \|\| height > 32767)
232	return false;
233
234	XImage *ximage = XCreateImage (dpy, s->visual, format->depth, ZPixmap, 0, 0,
235	width, height, 32, 0);
236	if (!ximage)
237	return false;
238
239	if (height > INT_MAX / ximage->bytes_per_line
240	\|\| !(ximage->data = (char )malloc (height ximage->bytes_per_line)))
241	{
242	XDestroyImage (ximage);
243	return false;
244	}
245
246	GC gc = XCreateGC (dpy, pm, 0, 0);
247
248	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
249
250	int rowstride = gdk_pixbuf_get_rowstride (pixbuf);
251	int channels = gdk_pixbuf_get_n_channels (pixbuf);
252	unsigned char row = gdk_pixbuf_get_pixels (pixbuf) + src_y rowstride + src_x * channels;
253	char *line = ximage->data;
254
255	rgba c (0, 0, 0);
256
257	if (channels == 4 && alpha_mask == 0)
258	{
259	//pix_colors[Color_bg].get (c);
260	//TODO
261	c.r = 0xffff; c.g = 0xc0c0; c.b = 0xcbcb;//D
262	c.r >>= 8;
263	c.g >>= 8;
264	c.b >>= 8;
265	}
266
267	for (int y = 0; y < height; y++)
268	{
269	for (int x = 0; x < width; x++)
270	{	595	{
271	unsigned char pixel = row + x channels;	596	XRenderFillRectangle (dpy, PictOpSrc, mul, &mask_c, 0, 0, 1, 1);
272	uint32_t value;	597	XRenderComposite (dpy, PictOpAdd, src, mul, dst, 0, 0, 0, 0, 0, 0, w, h);
273	unsigned char r, g, b, a;
274
275	if (channels == 4)
276	{
277	a = pixel[3];
278	r = (pixel[0] * a + c.r * (0xff - a)) / 0xff;
279	g = (pixel[1] * a + c.g * (0xff - a)) / 0xff;
280	b = (pixel[2] * a + c.b * (0xff - a)) / 0xff;
281	}
282	else
283	{
284	a = 0xff;
285	r = pixel[0];
286	g = pixel[1];
287	b = pixel[2];
288	}
289
290	value = ((r >> (8 - width_r)) << sh_r)
291	\| ((g >> (8 - width_g)) << sh_g)
292	\| ((b >> (8 - width_b)) << sh_b)
293	\| ((a >> (8 - width_a)) << sh_a);
294
295	if (ximage->bits_per_pixel == 32)
296	((uint32_t *)line)[x] = value;
297	else
298	XPutPixel (ximage, x, y, value);
299	}	598	}
		599	}
300		600
301	row += rowstride;	601	XRenderFreePicture (dpy, mul);
302	line += ximage->bytes_per_line;	602	XRenderFreePicture (dpy, dst);
		603	XRenderFreePicture (dpy, src);
		604
		605	::swap (img->ref, ref);
		606	::swap (img->pm , pm );
		607
		608	delete img;
		609	}
		610
		611	void
		612	rxvt_img::draw (rxvt_img *img, int op, nv mask)
		613	{
		614	unshare ();
		615
		616	Display *dpy = s->display->dpy;
		617	Picture src = img->picture ();
		618	Picture dst = picture ();
		619	Picture mask_p = 0;
		620
		621	if (mask != 1.)
303	}	622	{
		623	mask_p = create_xrender_mask (dpy, img->pm, False, False);
		624	XRenderColor mask_c = { 0, 0, 0, float_to_component (mask) };
		625	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		626	}
304		627
305	XPutImage (dpy, pm, gc, ximage, 0, 0, dst_x, dst_y, width, height);	628	XRenderComposite (dpy, op, src, mask_p, dst, x - img->x, y - img->y, 0, 0, 0, 0, w, h);
306	XDestroyImage (ximage);
307	XFreeGC (dpy, gc);
308		629
309	return true;	630	XRenderFreePicture (dpy, src);
		631	XRenderFreePicture (dpy, dst);
		632
		633	if (mask_p)
		634	XRenderFreePicture (dpy, mask_p);
310	}	635	}
311		636
312	rxvt_img *	637	rxvt_img *
313	rxvt_img::clone ()	638	rxvt_img::clone ()
314	{	639	{
315	GC gc = XCreateGC (s->display->dpy, pm, 0, 0);	640	return new rxvt_img (*this);
316	Pixmap pm2 = XCreatePixmap (s->display->dpy, pm, w, h, format->depth);
317	XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, w, h, 0, 0);
318	XFreeGC (s->display->dpy, gc);
319	return new rxvt_img (s, format, w, h, pm2);
320	}	641	}
321		642
322	rxvt_img *	643	rxvt_img *
323	rxvt_img::transform (int new_width, int new_height, int repeat, double matrix[9])	644	rxvt_img::reify ()
324	{	645	{
325	rxvt_img *img = new rxvt_img (s, format, new_width, new_height);	646	if (x == 0 && y == 0 && w == ref->w && h == ref->h)
		647	return clone ();
326		648
327	Display *dpy = s->display->dpy;	649	Display *dpy = s->display->dpy;
328	XRenderPictureAttributes pa;	650
329	pa.repeat = repeat;	651	// add an alpha channel if...
330	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);	652	bool alpha = !format->direct.alphaMask // pixmap has none yet
		653	&& (x \|\| y) // we need one because of non-zero offset
		654	&& repeat == RepeatNone; // and we have no good pixels to fill with
		655
		656	rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat);
		657	img->alloc ();
		658
		659	Picture src = picture ();
331	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);	660	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
		661
		662	if (alpha)
		663	{
		664	XRenderColor rc = { 0, 0, 0, 0 };
		665	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles
		666	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, x, y, ref->w, ref->h);
		667	}
		668	else
		669	XRenderComposite (dpy, PictOpSrc, src, None, dst, -x, -y, 0, 0, 0, 0, w, h);
		670
		671	XRenderFreePicture (dpy, src);
		672	XRenderFreePicture (dpy, dst);
		673
		674	return img;
		675	}
		676
		677	rxvt_img *
		678	rxvt_img::sub_rect (int x, int y, int width, int height)
		679	{
		680	rxvt_img *img = clone ();
		681
		682	img->x -= x;
		683	img->y -= y;
		684
		685	if (w != width \|\| h != height)
		686	{
		687	img->w = width;
		688	img->h = height;
		689
		690	rxvt_img *img2 = img->reify ();
		691	delete img;
		692	img = img2;
		693	}
		694
		695	return img;
		696	}
		697
		698	rxvt_img *
		699	rxvt_img::transform (nv matrix[3][3])
		700	{
		701	// calculate new pixel bounding box coordinates
		702	nv r[2], rmin[2], rmax[2];
		703
		704	mat3x3 m (matrix);
		705
		706	for (int i = 0; i < 2; ++i)
		707	{
		708	nv v;
		709
		710	v = m.apply1 (i, 0+x, 0+y); rmin [i] = rmax [i] = v; r [i] = v;
		711	v = m.apply1 (i, w+x, 0+y); min_it (rmin [i], v); max_it (rmax [i], v);
		712	v = m.apply1 (i, 0+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v);
		713	v = m.apply1 (i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v);
		714	}
		715
		716	float sx = rmin [0] - x;
		717	float sy = rmin [1] - y;
		718
		719	// TODO: adjust matrix for subpixel accuracy
		720	int nx = floor (rmin [0]);
		721	int ny = floor (rmin [1]);
		722
		723	int new_width = ceil (rmax [0] - rmin [0]);
		724	int new_height = ceil (rmax [1] - rmin [1]);
		725
		726	m = mat3x3::translate (-x, -y) * m * mat3x3::translate (x, y);
		727
		728	mat3x3 inv = m.invert ();
		729
		730	rxvt_img *img = new rxvt_img (s, format, nx, ny, new_width, new_height, repeat);
		731	img->alloc ();
		732
		733	Display *dpy = s->display->dpy;
		734	Picture src = picture ();
		735	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
332		736
333	XTransform xfrm;	737	XTransform xfrm;
334		738
335	for (int i = 0; i < 3; ++i)	739	for (int i = 0; i < 3; ++i)
336	for (int j = 0; j < 3; ++j)	740	for (int j = 0; j < 3; ++j)
337	xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);	741	xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]);
338		742
339	XRenderSetPictureFilter (dpy, src, "good", 0, 0);	743	XRenderSetPictureFilter (dpy, src, "good", 0, 0);
340	XRenderSetPictureTransform (dpy, src, &xfrm);	744	XRenderSetPictureTransform (dpy, src, &xfrm);
341	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height);	745	XRenderComposite (dpy, PictOpSrc, src, None, dst, sx, sy, 0, 0, 0, 0, new_width, new_height);
342		746
343	XRenderFreePicture (dpy, src);	747	XRenderFreePicture (dpy, src);
344	XRenderFreePicture (dpy, dst);	748	XRenderFreePicture (dpy, dst);
345		749
346	return img;	750	return img;
347	}	751	}
348		752
349	rxvt_img *	753	rxvt_img *
350	rxvt_img::scale (int new_width, int new_height)	754	rxvt_img::scale (int new_width, int new_height)
351	{	755	{
352	double matrix[9] = {	756	if (w == new_width && h == new_height)
353	w / (double)new_width, 0, 0,	757	return clone ();
354	0, h / (double)new_height, 0,	758
		759	nv matrix[3][3] = {
		760	{ new_width / (nv)w, 0, 0 },
		761	{ 0, new_height / (nv)h, 0 },
355	0, 0, 1	762	{ 0, 0, 1 }
356	};	763	};
357		764
358	return transform (new_width, new_height, RepeatNormal, matrix);	765	int old_repeat_mode = repeat;
359	}	766	repeat = RepeatPad; // not right, but xrender can't properly scale it seems
360		767
		768	rxvt_img *img = transform (matrix);
		769
		770	repeat = old_repeat_mode;
		771	img->repeat = repeat;
		772
		773	return img;
		774	}
		775
361	rxvt_img *	776	rxvt_img *
362	rxvt_img::rotate (int new_width, int new_height, int repeat, int x, int y, double phi)	777	rxvt_img::rotate (int cx, int cy, nv phi)
363	{	778	{
364	double s = sin (phi);	779	nv s = sin (phi);
365	double c = cos (phi);	780	nv c = cos (phi);
366		781
367	double matrix[9] = {	782	nv matrix[3][3] = {
		783	#if 0
368	c, -s, -c * x + s * y + x,	784	{ c, -s, cx - c * cx + s * cy },
369	s, c, -s * x - c * y + y,	785	{ s, c, cy - s * cx - c * cy },
370	0, 0, 1	786	{ 0, 0, 1 }
		787	#else
		788	{ c, -s, 0 },
		789	{ s, c, 0 },
		790	{ 0, 0, 1 }
		791	#endif
371	};	792	};
372		793
373	return transform (new_width, new_height, repeat, matrix);	794	move (-cx, -cy);
374	}	795	rxvt_img *img = transform (matrix);
		796	move ( cx, cy);
		797	img->move (cx, cy);
375		798
		799	return img;
		800	}
		801
376	rxvt_img *	802	rxvt_img *
377	rxvt_img::convert_to (XRenderPictFormat *new_format)	803	rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg)
378	{	804	{
		805	if (new_format == format)
		806	return clone ();
		807
379	rxvt_img *img = new rxvt_img (s, new_format, w, h);	808	rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat);
		809	img->alloc ();
380		810
381	Display *dpy = s->display->dpy;	811	Display *dpy = s->display->dpy;
382	Picture src = XRenderCreatePicture (dpy, pm, format, 0, 0);	812	Picture src = picture ();
383	Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);	813	Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);
		814	int op = PictOpSrc;
384		815
		816	if (format->direct.alphaMask && !new_format->direct.alphaMask)
		817	{
		818	// does it have to be that complicated
		819	XRenderColor rc = { bg.r, bg.g, bg.b, bg.a };
		820	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);
		821
		822	op = PictOpOver;
		823	}
		824
385	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	825	XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
386		826
387	XRenderFreePicture (dpy, src);	827	XRenderFreePicture (dpy, src);
388	XRenderFreePicture (dpy, dst);	828	XRenderFreePicture (dpy, dst);
389		829
390	return img;	830	return img;
391	}	831	}
392		832
		833	rxvt_img *
		834	rxvt_img::blend (rxvt_img *img, nv factor)
		835	{
		836	rxvt_img *img2 = clone ();
		837	Display *dpy = s->display->dpy;
		838	Picture src = img->picture ();
		839	Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0);
		840	Picture mask = create_xrender_mask (dpy, img->pm, False, False);
		841
		842	XRenderColor mask_c;
		843
		844	mask_c.alpha = float_to_component (factor);
		845	mask_c.red =
		846	mask_c.green =
		847	mask_c.blue = 0;
		848	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		849
		850	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h);
		851
		852	XRenderFreePicture (dpy, src);
		853	XRenderFreePicture (dpy, dst);
		854	XRenderFreePicture (dpy, mask);
		855
		856	return img2;
		857	}
		858
393	#endif	859	#endif
394		860

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing rxvt-unicode/src/rxvtimg.C (file contents): Revision 1.18 by sf-exg, Tue Jun 5 12:30:37 2012 UTC vs. Revision 1.94 by root, Fri Jun 15 18:10:40 2012 UTC

Diff Legend

Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.18 by sf-exg, Tue Jun 5 12:30:37 2012 UTC vs.
Revision 1.94 by root, Fri Jun 15 18:10:40 2012 UTC