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

Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.14 by root, Mon Jun 4 15:53:12 2012 UTC vs.
Revision 1.72 by sf-exg, Sat Jun 9 16:21:16 2012 UTC

…		…
2	#include "../config.h"	2	#include "../config.h"
3	#include "rxvt.h"	3	#include "rxvt.h"
4		4
5	#if HAVE_IMG	5	#if HAVE_IMG
6		6
7	#define float_to_component(d) ((d) * 65535.99)
8
9	rxvt_img::rxvt_img (rxvt_screen screen, XRenderPictFormat format, int width, int height)	7	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)	8	: s(screen), x(x), y(y), w(width), h(height), format(format), repeat(repeat),
		9	pm(0), ref(0)
17	{	10	{
		11	}
		12
		13	rxvt_img::rxvt_img (const rxvt_img &img)
		14	: 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)
		15	{
		16	++ref->cnt;
		17	}
		18
		19	rxvt_img *
		20	rxvt_img::new_from_root (rxvt_screen *s)
		21	{
		22	Display *dpy = s->display->dpy;
		23	unsigned int root_pm_w, root_pm_h;
		24	Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_XROOTPMAP_ID]);
		25	if (root_pixmap == None)
		26	root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_ESETROOT_PMAP_ID]);
		27
		28	if (root_pixmap == None)
		29	return 0;
		30
		31	Window wdummy;
		32	int idummy;
		33	unsigned int udummy;
		34
		35	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pm_w, &root_pm_h, &udummy, &udummy))
		36	return 0;
		37
		38	rxvt_img *img = new rxvt_img (
		39	s,
		40	XRenderFindVisualFormat (dpy, DefaultVisual (dpy, s->display->screen)),
		41	0,
		42	0,
		43	root_pm_w,
		44	root_pm_h
		45	);
		46
		47	img->pm = root_pixmap;
		48	img->ref = new pixref (root_pm_w, root_pm_h);
		49	img->ref->ours = false;
		50
		51	return img;
		52	}
		53
		54	rxvt_img *
		55	rxvt_img::new_from_pixbuf (rxvt_screen s, GdkPixbuf pb)
		56	{
		57	Display *dpy = s->display->dpy;
		58
		59	int width = gdk_pixbuf_get_width (pb);
		60	int height = gdk_pixbuf_get_height (pb);
		61
		62	if (width > 32767 \|\| height > 32767) // well, we could upload in chunks
		63	rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big (maximum size 32768x32768).\n");
		64
		65	// since we require rgb24/argb32 formats from xrender we assume
		66	// that both 24 and 32 bpp MUST be supported by any screen that supports xrender
		67	int depth = gdk_pixbuf_get_has_alpha (pb) ? 32 : 24;
		68
		69	int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
		70
		71	XImage xi;
		72
		73	xi.width = width;
		74	xi.height = height;
		75	xi.xoffset = 0;
		76	xi.format = ZPixmap;
		77	xi.byte_order = ImageByteOrder (dpy);
		78	xi.bitmap_unit = 0; //XY only, unused
		79	xi.bitmap_bit_order = 0; //XY only, unused
		80	xi.bitmap_pad = BitmapPad (dpy);
		81	xi.depth = depth;
		82	xi.bytes_per_line = 0;
		83	xi.bits_per_pixel = 32; //Z only
		84	xi.red_mask = 0x00000000; //Z only, unused
		85	xi.green_mask = 0x00000000; //Z only, unused
		86	xi.blue_mask = 0x00000000; //Z only, unused
		87	xi.obdata = 0; // probably unused
		88
		89	bool byte_order_mismatch = byte_order != xi.byte_order;
		90
		91	if (!XInitImage (&xi))
		92	rxvt_fatal ("unable to initialise ximage, please report.\n");
		93
		94	if (height > INT_MAX / xi.bytes_per_line)
		95	rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n");
		96
		97	xi.data = (char )rxvt_malloc (height xi.bytes_per_line);
		98
		99	int rowstride = gdk_pixbuf_get_rowstride (pb);
		100
		101	assert (3 + (depth == 32) == gdk_pixbuf_get_n_channels (pb));
		102	unsigned char *row = gdk_pixbuf_get_pixels (pb);
		103	char *line = xi.data;
		104
		105	for (int y = 0; y < height; y++)
		106	{
		107	unsigned char *src = row;
		108	uint32_t dst = (uint32_t )line;
		109
		110	if (depth == 24)
		111	for (int x = 0; x < width; x++)
		112	{
		113	uint8_t r = *src++;
		114	uint8_t g = *src++;
		115	uint8_t b = *src++;
		116
		117	uint32_t v = (r << 16) \| (g << 8) \| b;
		118
		119	if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch)
		120	v = ecb_bswap32 (v);
		121
		122	*dst++ = v;
		123	}
		124	else
		125	for (int x = 0; x < width; x++)
		126	{
		127	uint32_t v = (uint32_t )src; src += 4;
		128
		129	if (ecb_big_endian ())
		130	v = ecb_bswap32 (v);
		131
		132	v = ecb_rotl32 (v, 8); // abgr to bgra
		133
		134	if (!byte_order_mismatch)
		135	v = ecb_bswap32 (v);
		136
		137	*dst++ = v;
		138	}
		139
		140	row += rowstride;
		141	line += xi.bytes_per_line;
		142	}
		143
		144	rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, depth == 24 ? PictStandardRGB24 : PictStandardARGB32), 0, 0, width, height);
		145	img->alloc ();
		146
		147	GC gc = XCreateGC (dpy, img->pm, 0, 0);
		148	XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height);
		149	XFreeGC (dpy, gc);
		150
		151	free (xi.data);
		152
		153	return img;
18	}	154	}
19		155
20	rxvt_img *	156	rxvt_img *
21	rxvt_img::new_from_file (rxvt_screen s, const char filename)	157	rxvt_img::new_from_file (rxvt_screen s, const char filename)
22	{	158	{
…		…
24	GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err);	160	GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err);
25		161
26	if (!pb)	162	if (!pb)
27	rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message);	163	rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message);
28		164
29	rxvt_img *img = new rxvt_img (	165	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		166
36	img->render_pixbuf (pb, 0, 0, img->w, img->h, 0, 0);	167	g_object_unref (pb);
37		168
		169	return img;
		170	}
		171
		172	void
		173	rxvt_img::destroy ()
		174	{
		175	if (--ref->cnt)
38	return img;	176	return;
		177
		178	if (pm && ref->ours)
		179	XFreePixmap (s->display->dpy, pm);
		180
		181	delete ref;
39	}	182	}
40		183
41	rxvt_img::~rxvt_img ()	184	rxvt_img::~rxvt_img ()
42	{	185	{
43	if (!shared)	186	destroy ();
44	XFreePixmap (s->display->dpy, pm);	187	}
		188
		189	void
		190	rxvt_img::alloc ()
		191	{
		192	pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth);
		193	ref = new pixref (w, h);
		194	}
		195
		196	Picture
		197	rxvt_img::src_picture ()
		198	{
		199	Display *dpy = s->display->dpy;
		200
		201	XRenderPictureAttributes pa;
		202	pa.repeat = repeat;
		203	Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
		204
		205	return pic;
45	}	206	}
46		207
47	void	208	void
48	rxvt_img::unshare ()	209	rxvt_img::unshare ()
49	{	210	{
50	if (!shared)	211	if (ref->cnt == 1 && ref->ours)
51	return;	212	return;
52		213
53	rxvt_img *img = clone ();	214	Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth);
		215	GC gc = XCreateGC (s->display->dpy, pm, 0, 0);
		216	XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0);
		217	XFreeGC (s->display->dpy, gc);
54		218
55	::swap (pm , img->pm);	219	destroy ();
56	::swap (shared, img->shared);
57		220
58	delete img;	221	pm = pm2;
		222	ref = new pixref (ref->w, ref->h);
59	}	223	}
60		224
61	void	225	void
62	rxvt_img::fill (const rxvt_color &c)	226	rxvt_img::fill (const rxvt_color &c)
63	{	227	{
…		…
87		251
88	for (int i = 0; i < width; i++)	252	for (int i = 0; i < width; i++)
89	params[i+2] = XDoubleToFixed (kernel[i] / sum);	253	params[i+2] = XDoubleToFixed (kernel[i] / sum);
90	}	254	}
91		255
92	void	256	rxvt_img *
93	rxvt_img::blur (int rh, int rv)	257	rxvt_img::blur (int rh, int rv)
94	{	258	{
95	if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV))	259	if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV))
96	return;	260	return clone ();
97		261
98	Display *dpy = s->display->dpy;	262	Display *dpy = s->display->dpy;
99	int size = max (rh, rv) * 2 + 1;	263	int size = max (rh, rv) * 2 + 1;
100	double kernel = (double )malloc (size * sizeof (double));	264	double kernel = (double )malloc (size * sizeof (double));
101	XFixed params = (XFixed )malloc ((size + 2) * sizeof (XFixed));	265	XFixed params = (XFixed )malloc ((size + 2) * sizeof (XFixed));
		266	rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
		267	img->alloc ();
102		268
103	XRenderPictureAttributes pa;	269	XRenderPictureAttributes pa;
104
105	pa.repeat = RepeatPad;	270	pa.repeat = RepeatPad;
106	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);	271	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
		272	Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
		273
107	Pixmap tmp = XCreatePixmap (dpy, pm, w, h, format->depth);	274	Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth);
108	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);	275	Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa);
109	XFreePixmap (dpy, tmp);	276	XFreePixmap (dpy, tmp_pm);
110		277
111	if (kernel && params)	278	if (kernel && params)
112	{	279	{
113	size = rh * 2 + 1;	280	size = rh * 2 + 1;
114	get_gaussian_kernel (rh, size, kernel, params);	281	get_gaussian_kernel (rh, size, kernel, params);
115		282
116	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	283	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
117	XRenderComposite (dpy,	284	XRenderComposite (dpy,
118	PictOpSrc,	285	PictOpSrc,
119	src,	286	src,
		287	None,
		288	tmp,
		289	0, 0,
		290	0, 0,
		291	0, 0,
		292	w, h);
		293
		294	size = rv * 2 + 1;
		295	get_gaussian_kernel (rv, size, kernel, params);
		296	::swap (params[0], params[1]);
		297
		298	XRenderSetPictureFilter (dpy, tmp, FilterConvolution, params, size+2);
		299	XRenderComposite (dpy,
		300	PictOpSrc,
		301	tmp,
120	None,	302	None,
121	dst,	303	dst,
122	0, 0,	304	0, 0,
123	0, 0,	305	0, 0,
124	0, 0,	306	0, 0,
125	w, h);	307	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	}	308	}
144		309
145	free (kernel);	310	free (kernel);
146	free (params);	311	free (params);
147	XRenderFreePicture (dpy, src);	312	XRenderFreePicture (dpy, src);
148	XRenderFreePicture (dpy, dst);	313	XRenderFreePicture (dpy, dst);
149	}	314	XRenderFreePicture (dpy, tmp);
150		315
151	static Picture	316	return img;
152	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb)	317	}
		318
		319	static void
		320	extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc)
153	{	321	{
		322	int32_t x = clamp (c, cl0, cl1);
		323	c -= x;
		324	xc = x;
		325	}
		326
		327	static bool
		328	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)
		329	{
		330	extract (cl0, cl1, r, xr);
		331	extract (cl0, cl1, g, xg);
		332	extract (cl0, cl1, b, xb);
		333	extract (cl0, cl1, a, xa);
		334
		335	return xr \| xg \| xb \| xa;
		336	}
		337
		338	void
		339	rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a)
		340	{
		341	unshare ();
		342
		343	Display *dpy = s->display->dpy;
		344	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
		345
		346	// loop should not be needed for brightness, as only -1..1 makes sense
		347	//while (r \| g \| b \| a)
		348	{
		349	unsigned short xr, xg, xb, xa;
		350	XRenderColor mask_c;
		351
		352	if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
		353	XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
		354
		355	if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
		356	{
		357	XRenderColor mask_w = { 65535, 65535, 65535, 65535 };
		358	XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
		359	mask_c.red = -mask_c.red; //TODO: verify that doing clamp, assign, and negation does the right thing
		360	mask_c.green = -mask_c.green;
		361	mask_c.blue = -mask_c.blue;
		362	mask_c.alpha = -mask_c.alpha;
		363	XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
		364	XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
		365	}
		366	}
		367
		368
		369	XRenderFreePicture (dpy, dst);
		370	}
		371
		372	void
		373	rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a)
		374	{
		375	if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL))
		376	{
		377	rxvt_warn ("rxvt_img::contrast operation not supported on this display, RENDER extension too old.\n");
		378	return;
		379	}
		380
		381	unshare ();
		382
		383	Display *dpy = s->display->dpy;
		384	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
		385
		386	XRenderColor mask_c;
		387	mask_c.red = r;
		388	mask_c.green = g;
		389	mask_c.blue = b;
		390	mask_c.alpha = a;
		391	XRenderFillRectangle (dpy, PictOpMultiply, dst, &mask_c, 0, 0, w, h);
		392
		393	XRenderFreePicture (dpy, dst);
		394	}
		395
		396	rxvt_img *
		397	rxvt_img::clone ()
		398	{
		399	return new rxvt_img (*this);
		400	}
		401
		402	static XRenderPictFormat *
		403	find_alpha_format_for (Display dpy, XRenderPictFormat format)
		404	{
		405	if (format->direct.alphaMask)
		406	return format; // already has alpha
		407
		408	// try to find a suitable alpha format, one bit alpha is enough for our purposes
		409	if (format->type == PictTypeDirect)
		410	for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n)
		411	if (f->direct.alphaMask
		412	&& f->type == PictTypeDirect
		413	&& ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask )
		414	&& ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask)
		415	&& ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask ))
		416	return f;
		417
		418	// should be a very good fallback
		419	return XRenderFindStandardFormat (dpy, PictStandardARGB32);
		420	}
		421
		422	rxvt_img *
		423	rxvt_img::reify ()
		424	{
		425	if (x == 0 && y == 0 && w == ref->w && h == ref->h)
		426	return clone ();
		427
		428	Display *dpy = s->display->dpy;
		429
		430	// add an alpha channel if...
		431	bool alpha = !format->direct.alphaMask // pixmap has none yet
		432	&& (x \|\| y) // we need one because of non-zero offset
		433	&& repeat == RepeatNone; // and we have no good pixels to fill with
		434
		435	rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat);
		436	img->alloc ();
		437
		438	Picture src = src_picture ();
		439	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
		440
		441	if (alpha)
		442	{
		443	XRenderColor rc = { 0, 0, 0, 0 };
		444	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles
		445	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, -x, -y, ref->w, ref->h);
		446	}
		447	else
		448	XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h);
		449
		450	XRenderFreePicture (dpy, src);
		451	XRenderFreePicture (dpy, dst);
		452
		453	return img;
		454	}
		455
		456	rxvt_img *
		457	rxvt_img::sub_rect (int x, int y, int width, int height)
		458	{
		459	rxvt_img *img = clone ();
		460
		461	img->x += x;
		462	img->y += y;
		463
		464	if (w != width \|\| h != height)
		465	{
		466	img->w = width;
		467	img->h = height;
		468
		469	rxvt_img *img2 = img->reify ();
		470	delete img;
		471	img = img2;
		472	}
		473
		474	return img;
		475	}
		476
		477	rxvt_img *
		478	rxvt_img::transform (int new_width, int new_height, double matrix[9])
		479	{
		480	rxvt_img *img = new rxvt_img (s, format, 0, 0, new_width, new_height, repeat);
		481	img->alloc ();
		482
		483	Display *dpy = s->display->dpy;
		484	Picture src = src_picture ();
		485	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
		486
		487	XTransform xfrm;
		488
		489	for (int i = 0; i < 3; ++i)
		490	for (int j = 0; j < 3; ++j)
		491	xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);
		492
		493	xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO
		494	xfrm.matrix [1][2] -= XDoubleToFixed (y);
		495
		496	XRenderSetPictureFilter (dpy, src, "good", 0, 0);
		497	XRenderSetPictureTransform (dpy, src, &xfrm);
		498	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height);
		499
		500	XRenderFreePicture (dpy, src);
		501	XRenderFreePicture (dpy, dst);
		502
		503	return img;
		504	}
		505
		506	rxvt_img *
		507	rxvt_img::scale (int new_width, int new_height)
		508	{
		509	if (w == new_width && h == new_height)
		510	return clone ();
		511
		512	double matrix[9] = {
		513	w / (double)new_width, 0, 0,
		514	0, h / (double)new_height, 0,
		515	0, 0, 1
		516	};
		517
		518	int old_repeat_mode = repeat;
		519	repeat = RepeatPad; // not right, but xrender can't proeprly scale it seems
		520
		521	rxvt_img *img = transform (new_width, new_height, matrix);
		522
		523	repeat = old_repeat_mode;
		524	img->repeat = repeat;
		525
		526	return img;
		527	}
		528
		529	rxvt_img *
		530	rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi)
		531	{
		532	double s = sin (phi);
		533	double c = cos (phi);
		534
		535	double matrix[9] = {
		536	c, -s, -c * x + s * y + x,
		537	s, c, -s * x - c * y + y,
		538	0, 0, 1
		539	};
		540
		541	return transform (new_width, new_height, matrix);
		542	}
		543
		544	rxvt_img *
		545	rxvt_img::convert_format (XRenderPictFormat *new_format, const rxvt_color &bg)
		546	{
		547	if (new_format == format)
		548	return clone ();
		549
		550	rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat);
		551	img->alloc ();
		552
		553	Display *dpy = s->display->dpy;
		554	Picture src = src_picture ();
		555	Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);
		556	int op = PictOpSrc;
		557
		558	if (format->direct.alphaMask && !new_format->direct.alphaMask)
		559	{
		560	// does it have to be that complicated
		561	rgba c;
		562	bg.get (c);
		563
		564	XRenderColor rc = { c.r, c.g, c.b, 0xffff };
		565	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);
		566
		567	op = PictOpOver;
		568	}
		569
		570	XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
		571
		572	XRenderFreePicture (dpy, src);
		573	XRenderFreePicture (dpy, dst);
		574
		575	return img;
		576	}
		577
		578	rxvt_img *
		579	rxvt_img::blend (rxvt_img *img, double factor)
		580	{
		581	rxvt_img *img2 = clone ();
		582	Display *dpy = s->display->dpy;
		583	Picture src = img->src_picture ();
		584	Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0);
		585
154	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);	586	Pixmap pixmap = XCreatePixmap (dpy, img->pm, 1, 1, 8);
155
156	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);	587	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, PictStandardA8);
157	XRenderPictureAttributes pa;	588	XRenderPictureAttributes pa;
158	pa.repeat = True;	589	pa.repeat = True;
159	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);	590	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
160
161	XFreePixmap (dpy, pixmap);	591	XFreePixmap (dpy, pixmap);
162		592
163	return mask;
164	}
165
166	void
167	rxvt_img::brightness (double r, double g, double b, double a)
168	{
169	Display *dpy = s->display->dpy;
170	Picture src = create_xrender_mask (dpy, pm, True);
171	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
172
173	XRenderColor mask_c;	593	XRenderColor mask_c;
174	mask_c.red = float_to_component (r);	594
175	mask_c.green = float_to_component (g);
176	mask_c.blue = float_to_component (b);
177	mask_c.alpha = float_to_component (a);	595	mask_c.alpha = float_to_component (factor);
		596	mask_c.red =
		597	mask_c.green =
		598	mask_c.blue = 0;
178	XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1);	599	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
179		600
180	XRenderComposite (dpy, PictOpAdd, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	601	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h);
181	}
182
183	void
184	rxvt_img::contrast (double r, double g, double b, double a)
185	{
186	if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL))
187	return;
188
189	Display *dpy = s->display->dpy;
190	Picture src = create_xrender_mask (dpy, pm, True);
191	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
192
193	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
200	XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
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	bool argb = format->id == PictStandardARGB32;
207
208	Display *dpy = s->display->dpy;
209
210	if (s->visual->c_class != TrueColor)
211	return false;
212
213	uint32_t red_mask, green_mask, blue_mask, alpha_mask;
214
215	if (argb)
216	{
217	red_mask = 0xff << 16;
218	green_mask = 0xff << 8;
219	blue_mask = 0xff;
220	alpha_mask = 0xff << 24;
221	}
222	else
223	{
224	red_mask = s->visual->red_mask;
225	green_mask = s->visual->green_mask;
226	blue_mask = s->visual->blue_mask;
227	alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;
228	}
229
230	int width_r = ecb_popcount32 (red_mask);
231	int width_g = ecb_popcount32 (green_mask);
232	int width_b = ecb_popcount32 (blue_mask);
233	int width_a = ecb_popcount32 (alpha_mask);
234
235	if (width_r > 8 \|\| width_g > 8 \|\| width_b > 8 \|\| width_a > 8)
236	return false;
237
238	int sh_r = ecb_ctz32 (red_mask);
239	int sh_g = ecb_ctz32 (green_mask);
240	int sh_b = ecb_ctz32 (blue_mask);
241	int sh_a = ecb_ctz32 (alpha_mask);
242
243	if (width > 32767 \|\| height > 32767)
244	return false;
245
246	XImage *ximage = XCreateImage (dpy, s->visual, argb ? 32 : format->depth, ZPixmap, 0, 0,
247	width, height, 32, 0);
248	if (!ximage)
249	return false;
250
251	if (height > INT_MAX / ximage->bytes_per_line
252	\|\| !(ximage->data = (char )malloc (height ximage->bytes_per_line)))
253	{
254	XDestroyImage (ximage);
255	return false;
256	}
257
258	GC gc = XCreateGC (dpy, pm, 0, 0);
259
260	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
261
262	int rowstride = gdk_pixbuf_get_rowstride (pixbuf);
263	int channels = gdk_pixbuf_get_n_channels (pixbuf);
264	unsigned char row = gdk_pixbuf_get_pixels (pixbuf) + src_y rowstride + src_x * channels;
265	char *line = ximage->data;
266
267	rgba c (0, 0, 0);
268
269	if (channels == 4 && alpha_mask == 0)
270	{
271	//pix_colors[Color_bg].get (c);
272	//TODO
273	c.r >>= 8;
274	c.g >>= 8;
275	c.b >>= 8;
276	}
277
278	for (int y = 0; y < height; y++)
279	{
280	for (int x = 0; x < width; x++)
281	{
282	unsigned char pixel = row + x channels;
283	uint32_t value;
284	unsigned char r, g, b, a;
285
286	if (channels == 4)
287	{
288	a = pixel[3];
289	r = (pixel[0] * a + c.r * (0xff - a)) / 0xff;
290	g = (pixel[1] * a + c.g * (0xff - a)) / 0xff;
291	b = (pixel[2] * a + c.b * (0xff - a)) / 0xff;
292	}
293	else
294	{
295	a = 0xff;
296	r = pixel[0];
297	g = pixel[1];
298	b = pixel[2];
299	}
300
301	value = ((r >> (8 - width_r)) << sh_r)
302	\| ((g >> (8 - width_g)) << sh_g)
303	\| ((b >> (8 - width_b)) << sh_b)
304	\| ((a >> (8 - width_a)) << sh_a);
305
306	if (ximage->bits_per_pixel == 32)
307	((uint32_t *)line)[x] = value;
308	else
309	XPutPixel (ximage, x, y, value);
310	}
311
312	row += rowstride;
313	line += ximage->bytes_per_line;
314	}
315
316	XPutImage (dpy, pm, gc, ximage, 0, 0, dst_x, dst_y, width, height);
317	XDestroyImage (ximage);
318	XFreeGC (dpy, gc);
319
320	return true;
321	}
322
323	rxvt_img *
324	rxvt_img::clone ()
325	{
326	GC gc = XCreateGC (s->display->dpy, pm, 0, 0);
327	Pixmap pm2 = XCreatePixmap (s->display->dpy, pm, w, h, format->depth);
328	XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, w, h, 0, 0);
329	XFreeGC (s->display->dpy, gc);
330	return new rxvt_img (s, format, w, h, pm2);
331	}
332
333	rxvt_img *
334	rxvt_img::transform (int new_width, int new_height, int repeat, double matrix[9])
335	{
336	rxvt_img *img = new rxvt_img (s, format, new_width, new_height);
337
338	Display *dpy = s->display->dpy;
339	XRenderPictureAttributes pa;
340	pa.repeat = repeat;
341	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
342	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
343
344	XTransform xfrm;
345
346	for (int i = 0; i < 3; ++i)
347	for (int j = 0; j < 3; ++j)
348	xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);
349
350	XRenderSetPictureTransform (dpy, src, &xfrm);
351	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height);
352		602
353	XRenderFreePicture (dpy, src);	603	XRenderFreePicture (dpy, src);
354	XRenderFreePicture (dpy, dst);	604	XRenderFreePicture (dpy, dst);
		605	XRenderFreePicture (dpy, mask);
355		606
356	return img;	607	return img2;
357	}
358
359	rxvt_img *
360	rxvt_img::scale (int new_width, int new_height)
361	{
362	double matrix[9] = {
363	new_width / (double)w, 0, 0,
364	0, new_height / (double)h, 0,
365	0, 0, 1
366	};
367
368	return transform (new_width, new_height, RepeatNormal, matrix);
369	}
370
371	rxvt_img *
372	rxvt_img::convert_to (XRenderPictFormat *new_format)
373	{
374	rxvt_img *img = new rxvt_img (s, new_format, w, h);
375
376	Display *dpy = s->display->dpy;
377	Picture src = XRenderCreatePicture (dpy, pm, format, 0, 0);
378	Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);
379
380	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
381
382	XRenderFreePicture (dpy, src);
383	XRenderFreePicture (dpy, dst);
384
385	return img;
386	}	608	}
387		609
388	#endif	610	#endif
389		611

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Comparing rxvt-unicode/src/rxvtimg.C (file contents): Revision 1.14 by root, Mon Jun 4 15:53:12 2012 UTC vs. Revision 1.72 by sf-exg, Sat Jun 9 16:21:16 2012 UTC

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Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.14 by root, Mon Jun 4 15:53:12 2012 UTC vs.
Revision 1.72 by sf-exg, Sat Jun 9 16:21:16 2012 UTC