[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 1.76 by root, Sun Jun 10 10:29:26 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	# if HAVE_PIXBUF
		55	rxvt_img *
		56	rxvt_img::new_from_pixbuf (rxvt_screen s, GdkPixbuf pb)
		57	{
		58	Display *dpy = s->display->dpy;
		59
		60	int width = gdk_pixbuf_get_width (pb);
		61	int height = gdk_pixbuf_get_height (pb);
		62
		63	if (width > 32767 \|\| height > 32767) // well, we could upload in chunks
		64	rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big (maximum size 32768x32768).\n");
		65
		66	// since we require rgb24/argb32 formats from xrender we assume
		67	// that both 24 and 32 bpp MUST be supported by any screen that supports xrender
		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 = 32;
		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	bool pb_has_alpha = gdk_pixbuf_get_has_alpha (pb);
		101	unsigned char *row = gdk_pixbuf_get_pixels (pb);
		102
		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 (!pb_has_alpha)
		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 = (255 << 24) \| (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, 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	# endif
		172
		173	void
		174	rxvt_img::destroy ()
		175	{
		176	if (--ref->cnt)
38	return img;	177	return;
		178
		179	if (pm && ref->ours)
		180	XFreePixmap (s->display->dpy, pm);
		181
		182	delete ref;
39	}	183	}
40		184
41	rxvt_img::~rxvt_img ()	185	rxvt_img::~rxvt_img ()
42	{	186	{
43	if (!shared)	187	destroy ();
44	XFreePixmap (s->display->dpy, pm);	188	}
		189
		190	void
		191	rxvt_img::alloc ()
		192	{
		193	pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth);
		194	ref = new pixref (w, h);
		195	}
		196
		197	Picture
		198	rxvt_img::src_picture ()
		199	{
		200	Display *dpy = s->display->dpy;
		201
		202	XRenderPictureAttributes pa;
		203	pa.repeat = repeat;
		204	Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
		205
		206	return pic;
45	}	207	}
46		208
47	void	209	void
48	rxvt_img::unshare ()	210	rxvt_img::unshare ()
49	{	211	{
50	if (!shared)	212	if (ref->cnt == 1 && ref->ours)
51	return;	213	return;
52		214
53	rxvt_img *img = clone ();	215	Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth);
		216	GC gc = XCreateGC (s->display->dpy, pm, 0, 0);
		217	XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0);
		218	XFreeGC (s->display->dpy, gc);
54		219
55	::swap (pm , img->pm);	220	destroy ();
56	::swap (shared, img->shared);
57		221
58	delete img;	222	pm = pm2;
		223	ref = new pixref (ref->w, ref->h);
59	}	224	}
60		225
61	void	226	void
62	rxvt_img::fill (const rxvt_color &c)	227	rxvt_img::fill (const rxvt_color &c)
63	{	228	{
…		…
87		252
88	for (int i = 0; i < width; i++)	253	for (int i = 0; i < width; i++)
89	params[i+2] = XDoubleToFixed (kernel[i] / sum);	254	params[i+2] = XDoubleToFixed (kernel[i] / sum);
90	}	255	}
91		256
92	void	257	rxvt_img *
93	rxvt_img::blur (int rh, int rv)	258	rxvt_img::blur (int rh, int rv)
94	{	259	{
95	if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV))	260	if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV))
96	return;	261	return clone ();
97		262
98	Display *dpy = s->display->dpy;	263	Display *dpy = s->display->dpy;
99	int size = max (rh, rv) * 2 + 1;	264	int size = max (rh, rv) * 2 + 1;
100	double kernel = (double )malloc (size * sizeof (double));	265	double kernel = (double )malloc (size * sizeof (double));
101	XFixed params = (XFixed )malloc ((size + 2) * sizeof (XFixed));	266	XFixed params = (XFixed )malloc ((size + 2) * sizeof (XFixed));
		267	rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
		268	img->alloc ();
102		269
103	XRenderPictureAttributes pa;	270	XRenderPictureAttributes pa;
104
105	pa.repeat = RepeatPad;	271	pa.repeat = RepeatPad;
106	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);	272	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
		273	Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
		274
107	Pixmap tmp = XCreatePixmap (dpy, pm, w, h, format->depth);	275	Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth);
108	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);	276	Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa);
109	XFreePixmap (dpy, tmp);	277	XFreePixmap (dpy, tmp_pm);
110		278
111	if (kernel && params)	279	if (kernel && params)
112	{	280	{
113	size = rh * 2 + 1;	281	size = rh * 2 + 1;
114	get_gaussian_kernel (rh, size, kernel, params);	282	get_gaussian_kernel (rh, size, kernel, params);
115		283
116	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	284	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
117	XRenderComposite (dpy,	285	XRenderComposite (dpy,
118	PictOpSrc,	286	PictOpSrc,
119	src,	287	src,
		288	None,
		289	tmp,
		290	0, 0,
		291	0, 0,
		292	0, 0,
		293	w, h);
		294
		295	size = rv * 2 + 1;
		296	get_gaussian_kernel (rv, size, kernel, params);
		297	::swap (params[0], params[1]);
		298
		299	XRenderSetPictureFilter (dpy, tmp, FilterConvolution, params, size+2);
		300	XRenderComposite (dpy,
		301	PictOpSrc,
		302	tmp,
120	None,	303	None,
121	dst,	304	dst,
122	0, 0,	305	0, 0,
123	0, 0,	306	0, 0,
124	0, 0,	307	0, 0,
125	w, h);	308	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	}	309	}
144		310
145	free (kernel);	311	free (kernel);
146	free (params);	312	free (params);
147	XRenderFreePicture (dpy, src);	313	XRenderFreePicture (dpy, src);
148	XRenderFreePicture (dpy, dst);	314	XRenderFreePicture (dpy, dst);
		315	XRenderFreePicture (dpy, tmp);
		316
		317	return img;
149	}	318	}
150		319
151	static Picture	320	static Picture
152	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb)	321	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha)
153	{	322	{
154	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);	323	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);
155		324
156	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);	325	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);
157	XRenderPictureAttributes pa;	326	XRenderPictureAttributes pa;
158	pa.repeat = True;	327	pa.repeat = RepeatNormal;
		328	pa.component_alpha = component_alpha;
159	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);	329	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat \| CPComponentAlpha, &pa);
160		330
161	XFreePixmap (dpy, pixmap);	331	XFreePixmap (dpy, pixmap);
162		332
163	return mask;	333	return mask;
164	}	334	}
165		335
		336	static void
		337	extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc)
		338	{
		339	int32_t x = clamp (c, cl0, cl1);
		340	c -= x;
		341	xc = x;
		342	}
		343
		344	static bool
		345	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)
		346	{
		347	extract (cl0, cl1, r, xr);
		348	extract (cl0, cl1, g, xg);
		349	extract (cl0, cl1, b, xb);
		350	extract (cl0, cl1, a, xa);
		351
		352	return xr \| xg \| xb \| xa;
		353	}
		354
166	void	355	void
167	rxvt_img::brightness (double r, double g, double b, double a)	356	rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a)
168	{	357	{
		358	unshare ();
		359
169	Display *dpy = s->display->dpy;	360	Display *dpy = s->display->dpy;
170	Picture src = create_xrender_mask (dpy, pm, True);
171	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);	361	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
172		362
		363	// loop should not be needed for brightness, as only -1..1 makes sense
		364	//while (r \| g \| b \| a)
		365	{
		366	unsigned short xr, xg, xb, xa;
173	XRenderColor mask_c;	367	XRenderColor mask_c;
174	mask_c.red = float_to_component (r);	368
175	mask_c.green = float_to_component (g);	369	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);	370	XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
179		371
180	XRenderComposite (dpy, PictOpAdd, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	372	if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
		373	{
		374	XRenderColor mask_w = { 65535, 65535, 65535, 65535 };
		375	XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
		376	mask_c.red = -mask_c.red; //TODO: verify that doing clamp, assign, and negation does the right thing
		377	mask_c.green = -mask_c.green;
		378	mask_c.blue = -mask_c.blue;
		379	mask_c.alpha = -mask_c.alpha;
		380	XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
		381	XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
		382	}
		383	}
		384
		385	XRenderFreePicture (dpy, dst);
181	}	386	}
182		387
183	void	388	void
184	rxvt_img::contrast (double r, double g, double b, double a)	389	rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a)
185	{	390	{
186	if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL))	391	if (r < 0 \|\| g < 0 \|\| b < 0 \|\| a < 0)
187	return;	392	rxvt_fatal ("rxvt_img::contrast does not support negative values.\n");
188		393
		394	rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
		395	img->alloc ();
		396
		397	{
		398	rxvt_color empty;
		399	empty.set (s, rgba (0, 0, 0, 0));
		400	img->fill (empty);
		401	}
		402
		403	// premultiply (yeah, these are not exact, sue me or fix it)
		404	r = (r * (a >> 8)) >> 8;
		405	g = (g * (a >> 8)) >> 8;
		406	b = (b * (a >> 8)) >> 8;
		407
189	Display *dpy = s->display->dpy;	408	Display *dpy = s->display->dpy;
190	Picture src = create_xrender_mask (dpy, pm, True);	409
		410	Picture src = src_picture ();
191	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);	411	Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
		412	Picture mul = create_xrender_mask (dpy, pm, True, True);
192		413
		414	//TODO: this operator does not yet implement some useful contrast
		415	while (r \| g \| b \| a)
		416	{
		417	unsigned short xr, xg, xb, xa;
193	XRenderColor mask_c;	418	XRenderColor mask_c;
194	mask_c.red = float_to_component (r);	419
195	mask_c.green = float_to_component (g);	420	if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
196	mask_c.blue = float_to_component (b);	421	{
197	mask_c.alpha = float_to_component (a);
198	XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1);	422	XRenderFillRectangle (dpy, PictOpSrc, mul, &mask_c, 0, 0, 1, 1);
199
200	XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	423	XRenderComposite (dpy, PictOpAdd, src, mul, dst, 0, 0, 0, 0, 0, 0, w, h);
201	}	424	}
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	{	425	}
217	red_mask = 0xff << 16;	426
218	green_mask = 0xff << 8;	427	XRenderFreePicture (dpy, mul);
219	blue_mask = 0xff;	428	XRenderFreePicture (dpy, dst);
220	alpha_mask = 0xff << 24;	429	XRenderFreePicture (dpy, src);
		430
		431	::swap (img->ref, ref);
		432	::swap (img->pm , pm );
		433
		434	delete img;
		435	}
		436
		437	rxvt_img *
		438	rxvt_img::clone ()
		439	{
		440	return new rxvt_img (*this);
		441	}
		442
		443	static XRenderPictFormat *
		444	find_alpha_format_for (Display dpy, XRenderPictFormat format)
		445	{
		446	if (format->direct.alphaMask)
		447	return format; // already has alpha
		448
		449	// try to find a suitable alpha format, one bit alpha is enough for our purposes
		450	if (format->type == PictTypeDirect)
		451	for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n)
		452	if (f->direct.alphaMask
		453	&& f->type == PictTypeDirect
		454	&& ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask )
		455	&& ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask)
		456	&& ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask ))
		457	return f;
		458
		459	// should be a very good fallback
		460	return XRenderFindStandardFormat (dpy, PictStandardARGB32);
		461	}
		462
		463	rxvt_img *
		464	rxvt_img::reify ()
		465	{
		466	if (x == 0 && y == 0 && w == ref->w && h == ref->h)
		467	return clone ();
		468
		469	Display *dpy = s->display->dpy;
		470
		471	// add an alpha channel if...
		472	bool alpha = !format->direct.alphaMask // pixmap has none yet
		473	&& (x \|\| y) // we need one because of non-zero offset
		474	&& repeat == RepeatNone; // and we have no good pixels to fill with
		475
		476	rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat);
		477	img->alloc ();
		478
		479	Picture src = src_picture ();
		480	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
		481
		482	if (alpha)
		483	{
		484	XRenderColor rc = { 0, 0, 0, 0 };
		485	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles
		486	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, -x, -y, ref->w, ref->h);
221	}	487	}
222	else	488	else
223	{	489	XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h);
224	red_mask = s->visual->red_mask;	490
225	green_mask = s->visual->green_mask;	491	XRenderFreePicture (dpy, src);
226	blue_mask = s->visual->blue_mask;	492	XRenderFreePicture (dpy, dst);
227	alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;	493
		494	return img;
		495	}
		496
		497	rxvt_img *
		498	rxvt_img::sub_rect (int x, int y, int width, int height)
		499	{
		500	rxvt_img *img = clone ();
		501
		502	img->x += x;
		503	img->y += y;
		504
		505	if (w != width \|\| h != height)
228	}	506	{
		507	img->w = width;
		508	img->h = height;
229		509
230	int width_r = ecb_popcount32 (red_mask);	510	rxvt_img *img2 = img->reify ();
231	int width_g = ecb_popcount32 (green_mask);	511	delete img;
232	int width_b = ecb_popcount32 (blue_mask);	512	img = img2;
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	{	513	}
254	XDestroyImage (ximage);
255	return false;
256	}
257		514
258	GC gc = XCreateGC (dpy, pm, 0, 0);	515	return img;
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	}	516	}
322		517
323	rxvt_img *	518	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])	519	rxvt_img::transform (int new_width, int new_height, double matrix[9])
335	{	520	{
336	rxvt_img *img = new rxvt_img (s, format, new_width, new_height);	521	rxvt_img *img = new rxvt_img (s, format, 0, 0, new_width, new_height, repeat);
		522	img->alloc ();
337		523
338	Display *dpy = s->display->dpy;	524	Display *dpy = s->display->dpy;
339	XRenderPictureAttributes pa;	525	Picture src = src_picture ();
340	pa.repeat = repeat;
341	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
342	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);	526	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
343		527
344	XTransform xfrm;	528	XTransform xfrm;
345		529
346	for (int i = 0; i < 3; ++i)	530	for (int i = 0; i < 3; ++i)
347	for (int j = 0; j < 3; ++j)	531	for (int j = 0; j < 3; ++j)
348	xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);	532	xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);
349		533
		534	xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO
		535	xfrm.matrix [1][2] -= XDoubleToFixed (y);
		536
		537	XRenderSetPictureFilter (dpy, src, "good", 0, 0);
350	XRenderSetPictureTransform (dpy, src, &xfrm);	538	XRenderSetPictureTransform (dpy, src, &xfrm);
351	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height);	539	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height);
352		540
353	XRenderFreePicture (dpy, src);	541	XRenderFreePicture (dpy, src);
354	XRenderFreePicture (dpy, dst);	542	XRenderFreePicture (dpy, dst);
…		…
357	}	545	}
358		546
359	rxvt_img *	547	rxvt_img *
360	rxvt_img::scale (int new_width, int new_height)	548	rxvt_img::scale (int new_width, int new_height)
361	{	549	{
		550	if (w == new_width && h == new_height)
		551	return clone ();
		552
362	double matrix[9] = {	553	double matrix[9] = {
363	new_width / (double)w, 0, 0,	554	w / (double)new_width, 0, 0,
364	0, new_height / (double)h, 0,	555	0, h / (double)new_height, 0,
365	0, 0, 1	556	0, 0, 1
366	};	557	};
367		558
		559	int old_repeat_mode = repeat;
		560	repeat = RepeatPad; // not right, but xrender can't proeprly scale it seems
		561
		562	rxvt_img *img = transform (new_width, new_height, matrix);
		563
		564	repeat = old_repeat_mode;
		565	img->repeat = repeat;
		566
		567	return img;
		568	}
		569
		570	rxvt_img *
		571	rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi)
		572	{
		573	double s = sin (phi);
		574	double c = cos (phi);
		575
		576	double matrix[9] = {
		577	c, -s, -c * x + s * y + x,
		578	s, c, -s * x - c * y + y,
		579	0, 0, 1
		580	};
		581
368	return transform (new_width, new_height, RepeatNormal, matrix);	582	return transform (new_width, new_height, matrix);
369	}	583	}
370		584
371	rxvt_img *	585	rxvt_img *
372	rxvt_img::convert_to (XRenderPictFormat *new_format)	586	rxvt_img::convert_format (XRenderPictFormat *new_format, const rxvt_color &bg)
373	{	587	{
		588	if (new_format == format)
		589	return clone ();
		590
374	rxvt_img *img = new rxvt_img (s, new_format, w, h);	591	rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat);
		592	img->alloc ();
375		593
376	Display *dpy = s->display->dpy;	594	Display *dpy = s->display->dpy;
377	Picture src = XRenderCreatePicture (dpy, pm, format, 0, 0);	595	Picture src = src_picture ();
378	Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);	596	Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);
		597	int op = PictOpSrc;
379		598
		599	if (format->direct.alphaMask && !new_format->direct.alphaMask)
		600	{
		601	// does it have to be that complicated
		602	rgba c;
		603	bg.get (c);
		604
		605	XRenderColor rc = { c.r, c.g, c.b, 0xffff };
		606	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);
		607
		608	op = PictOpOver;
		609	}
		610
380	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	611	XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
381		612
382	XRenderFreePicture (dpy, src);	613	XRenderFreePicture (dpy, src);
383	XRenderFreePicture (dpy, dst);	614	XRenderFreePicture (dpy, dst);
384		615
385	return img;	616	return img;
386	}	617	}
387		618
		619	rxvt_img *
		620	rxvt_img::blend (rxvt_img *img, double factor)
		621	{
		622	rxvt_img *img2 = clone ();
		623	Display *dpy = s->display->dpy;
		624	Picture src = img->src_picture ();
		625	Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0);
		626	Picture mask = create_xrender_mask (dpy, img->pm, False, False);
		627
		628	XRenderColor mask_c;
		629
		630	mask_c.alpha = float_to_component (factor);
		631	mask_c.red =
		632	mask_c.green =
		633	mask_c.blue = 0;
		634	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		635
		636	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h);
		637
		638	XRenderFreePicture (dpy, src);
		639	XRenderFreePicture (dpy, dst);
		640	XRenderFreePicture (dpy, mask);
		641
		642	return img2;
		643	}
		644
388	#endif	645	#endif
389		646

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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 1.76 by root, Sun Jun 10 10:29:26 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 1.76 by root, Sun Jun 10 10:29:26 2012 UTC