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

Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.15 by root, Mon Jun 4 16:03:32 2012 UTC vs.
Revision 1.69 by root, Sat Jun 9 11:15:29 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);
		314	XRenderFreePicture (dpy, tmp);
		315
		316	return img;
149	}	317	}
150		318
151	static Picture	319	static Picture
152	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb)	320	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb)
153	{	321	{
…		…
161	XFreePixmap (dpy, pixmap);	329	XFreePixmap (dpy, pixmap);
162		330
163	return mask;	331	return mask;
164	}	332	}
165		333
		334	static void
		335	extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc)
		336	{
		337	int32_t x = clamp (c, cl0, cl1);
		338	c -= x;
		339	xc = x;
		340	}
		341
		342	static bool
		343	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)
		344	{
		345	extract (cl0, cl1, r, xr);
		346	extract (cl0, cl1, g, xg);
		347	extract (cl0, cl1, b, xb);
		348	extract (cl0, cl1, a, xa);
		349
		350	return xr \| xg \| xb \| xa;
		351	}
		352
166	void	353	void
167	rxvt_img::brightness (double r, double g, double b, double a)	354	rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a)
168	{	355	{
		356	unshare ();
		357
		358	Display *dpy = s->display->dpy;
		359	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
		360
		361	// loop should not be needed for brightness, as only -1..1 makes sense
		362
		363	while (r \| g \| b \| a)
		364	{
		365	unsigned short xr, xg, xb, xa;
		366	XRenderColor mask_c;
		367
		368	if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
		369	XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
		370
		371	if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
		372	{
		373	XRenderColor mask_w = { 65535, 65535, 65535, 65535 };
		374	XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
		375	mask_c.red = -mask_c.red;
		376	mask_c.green = -mask_c.green;
		377	mask_c.blue = -mask_c.blue;
		378	mask_c.alpha = -mask_c.alpha;
		379	XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
		380	XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
		381	}
		382	}
		383
		384
		385	XRenderFreePicture (dpy, dst);
		386	}
		387
		388	void
		389	rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a)
		390	{
		391	if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL))
		392	{
		393	rxvt_warn ("rxvt_img::contrast operation not supported on this display, RENDER extension too old.\n");
		394	return;
		395	}
		396
		397	unshare ();
		398
169	Display *dpy = s->display->dpy;	399	Display *dpy = s->display->dpy;
170	Picture src = create_xrender_mask (dpy, pm, True);	400	Picture src = create_xrender_mask (dpy, pm, True);
171	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);	401	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
172		402
173	XRenderColor mask_c;	403	XRenderColor mask_c;
174	mask_c.red = float_to_component (r);	404	mask_c.red = r;
175	mask_c.green = float_to_component (g);	405	mask_c.green = g;
176	mask_c.blue = float_to_component (b);	406	mask_c.blue = b;
177	mask_c.alpha = float_to_component (a);	407	mask_c.alpha = a;
178	XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1);	408	XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1);
179		409
180	XRenderComposite (dpy, PictOpAdd, src, None, 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);	410	XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
201	}
202		411
203	bool	412	XRenderFreePicture (dpy, src);
204	rxvt_img::render_pixbuf (GdkPixbuf *pixbuf, int src_x, int src_y, int width, int height, int dst_x, int dst_y)	413	XRenderFreePicture (dpy, dst);
205	{	414	}
206	bool argb = format->id == PictStandardARGB32;
207		415
208	Display *dpy = s->display->dpy;	416	rxvt_img *
		417	rxvt_img::clone ()
		418	{
		419	return new rxvt_img (*this);
		420	}
209		421
210	if (s->visual->c_class != TrueColor)	422	static XRenderPictFormat *
		423	find_alpha_format_for (Display dpy, XRenderPictFormat format)
		424	{
		425	if (format->direct.alphaMask)
		426	return format; // already has alpha
		427
		428	// try to find a suitable alpha format, one bit alpha is enough for our purposes
		429	if (format->type == PictTypeDirect)
		430	for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n)
		431	if (f->direct.alphaMask
		432	&& f->type == PictTypeDirect
		433	&& ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask )
		434	&& ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask)
		435	&& ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask ))
211	return false;	436	return f;
212		437
213	uint32_t red_mask, green_mask, blue_mask, alpha_mask;	438	// should be a very good fallback
		439	return XRenderFindStandardFormat (dpy, PictStandardARGB32);
		440	}
214		441
215	if (argb)	442	rxvt_img *
		443	rxvt_img::reify ()
		444	{
		445	if (x == 0 && y == 0 && w == ref->w && h == ref->h)
		446	return clone ();
		447
		448	Display *dpy = s->display->dpy;
		449
		450	// add an alpha channel if...
		451	bool alpha = !format->direct.alphaMask // pixmap has none yet
		452	&& (x \|\| y) // we need one because of non-zero offset
		453	&& repeat == RepeatNone; // and we have no good pixels to fill with
		454
		455	rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat);
		456	img->alloc ();
		457
		458	Picture src = src_picture ();
		459	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
		460
		461	if (alpha)
216	{	462	{
217	red_mask = 0xff << 16;	463	XRenderColor rc = { 0, 0, 0, 0 };
218	green_mask = 0xff << 8;	464	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles
219	blue_mask = 0xff;	465	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, -x, -y, ref->w, ref->h);
220	alpha_mask = 0xff << 24;
221	}	466	}
222	else	467	else
223	{	468	XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h);
224	red_mask = s->visual->red_mask;	469
225	green_mask = s->visual->green_mask;	470	XRenderFreePicture (dpy, src);
226	blue_mask = s->visual->blue_mask;	471	XRenderFreePicture (dpy, dst);
227	alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;	472
		473	return img;
		474	}
		475
		476	rxvt_img *
		477	rxvt_img::sub_rect (int x, int y, int width, int height)
		478	{
		479	rxvt_img *img = clone ();
		480
		481	img->x += x;
		482	img->y += y;
		483
		484	if (w != width \|\| h != height)
228	}	485	{
		486	img->w = width;
		487	img->h = height;
229		488
230	int width_r = ecb_popcount32 (red_mask);	489	rxvt_img *img2 = img->reify ();
231	int width_g = ecb_popcount32 (green_mask);	490	delete img;
232	int width_b = ecb_popcount32 (blue_mask);	491	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	{	492	}
254	XDestroyImage (ximage);
255	return false;
256	}
257		493
258	GC gc = XCreateGC (dpy, pm, 0, 0);	494	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 = 0xffff; c.g = 0xc0c0; c.b = 0xcbcb;//D
274	c.r >>= 8;
275	c.g >>= 8;
276	c.b >>= 8;
277	}
278
279	for (int y = 0; y < height; y++)
280	{
281	for (int x = 0; x < width; x++)
282	{
283	unsigned char pixel = row + x channels;
284	uint32_t value;
285	unsigned char r, g, b, a;
286
287	if (channels == 4)
288	{
289	a = pixel[3];
290	r = (pixel[0] * a + c.r * (0xff - a)) / 0xff;
291	g = (pixel[1] * a + c.g * (0xff - a)) / 0xff;
292	b = (pixel[2] * a + c.b * (0xff - a)) / 0xff;
293	}
294	else
295	{
296	a = 0xff;
297	r = pixel[0];
298	g = pixel[1];
299	b = pixel[2];
300	}
301
302	value = ((r >> (8 - width_r)) << sh_r)
303	\| ((g >> (8 - width_g)) << sh_g)
304	\| ((b >> (8 - width_b)) << sh_b)
305	\| ((a >> (8 - width_a)) << sh_a);
306
307	if (ximage->bits_per_pixel == 32)
308	((uint32_t *)line)[x] = value;
309	else
310	XPutPixel (ximage, x, y, value);
311	}
312
313	row += rowstride;
314	line += ximage->bytes_per_line;
315	}
316
317	XPutImage (dpy, pm, gc, ximage, 0, 0, dst_x, dst_y, width, height);
318	XDestroyImage (ximage);
319	XFreeGC (dpy, gc);
320
321	return true;
322	}	495	}
323		496
324	rxvt_img *	497	rxvt_img *
325	rxvt_img::clone ()
326	{
327	GC gc = XCreateGC (s->display->dpy, pm, 0, 0);
328	Pixmap pm2 = XCreatePixmap (s->display->dpy, pm, w, h, format->depth);
329	XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, w, h, 0, 0);
330	XFreeGC (s->display->dpy, gc);
331	return new rxvt_img (s, format, w, h, pm2);
332	}
333
334	rxvt_img *
335	rxvt_img::transform (int new_width, int new_height, int repeat, double matrix[9])	498	rxvt_img::transform (int new_width, int new_height, double matrix[9])
336	{	499	{
337	rxvt_img *img = new rxvt_img (s, format, new_width, new_height);	500	rxvt_img *img = new rxvt_img (s, format, 0, 0, new_width, new_height, repeat);
		501	img->alloc ();
338		502
339	Display *dpy = s->display->dpy;	503	Display *dpy = s->display->dpy;
340	XRenderPictureAttributes pa;	504	Picture src = src_picture ();
341	pa.repeat = repeat;
342	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
343	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);	505	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
344		506
345	XTransform xfrm;	507	XTransform xfrm;
346		508
347	for (int i = 0; i < 3; ++i)	509	for (int i = 0; i < 3; ++i)
348	for (int j = 0; j < 3; ++j)	510	for (int j = 0; j < 3; ++j)
349	xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);	511	xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);
350		512
		513	xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO
		514	xfrm.matrix [1][2] -= XDoubleToFixed (y);
		515
		516	XRenderSetPictureFilter (dpy, src, "good", 0, 0);
351	XRenderSetPictureTransform (dpy, src, &xfrm);	517	XRenderSetPictureTransform (dpy, src, &xfrm);
352	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height);	518	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height);
353		519
354	XRenderFreePicture (dpy, src);	520	XRenderFreePicture (dpy, src);
355	XRenderFreePicture (dpy, dst);	521	XRenderFreePicture (dpy, dst);
…		…
358	}	524	}
359		525
360	rxvt_img *	526	rxvt_img *
361	rxvt_img::scale (int new_width, int new_height)	527	rxvt_img::scale (int new_width, int new_height)
362	{	528	{
		529	if (w == new_width && h == new_height)
		530	return clone ();
		531
363	double matrix[9] = {	532	double matrix[9] = {
364	new_width / (double)w, 0, 0,	533	w / (double)new_width, 0, 0,
365	0, new_height / (double)h, 0,	534	0, h / (double)new_height, 0,
366	0, 0, 1	535	0, 0, 1
367	};	536	};
368		537
		538	int old_repeat_mode = repeat;
		539	repeat = RepeatPad; // not right, but xrender can't proeprly scale it seems
		540
		541	rxvt_img *img = transform (new_width, new_height, matrix);
		542
		543	repeat = old_repeat_mode;
		544	img->repeat = repeat;
		545
		546	return img;
		547	}
		548
		549	rxvt_img *
		550	rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi)
		551	{
		552	double s = sin (phi);
		553	double c = cos (phi);
		554
		555	double matrix[9] = {
		556	c, -s, -c * x + s * y + x,
		557	s, c, -s * x - c * y + y,
		558	0, 0, 1
		559	};
		560
369	return transform (new_width, new_height, RepeatNormal, matrix);	561	return transform (new_width, new_height, matrix);
370	}	562	}
371		563
372	rxvt_img *	564	rxvt_img *
373	rxvt_img::convert_to (XRenderPictFormat *new_format)	565	rxvt_img::convert_format (XRenderPictFormat *new_format, const rxvt_color &bg)
374	{	566	{
		567	if (new_format == format)
		568	return clone ();
		569
375	rxvt_img *img = new rxvt_img (s, new_format, w, h);	570	rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat);
		571	img->alloc ();
376		572
377	Display *dpy = s->display->dpy;	573	Display *dpy = s->display->dpy;
378	Picture src = XRenderCreatePicture (dpy, pm, format, 0, 0);	574	Picture src = src_picture ();
379	Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);	575	Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);
		576	int op = PictOpSrc;
380		577
		578	if (format->direct.alphaMask && !new_format->direct.alphaMask)
		579	{
		580	// does it have to be that complicated
		581	rgba c;
		582	bg.get (c);
		583
		584	XRenderColor rc = { c.r, c.g, c.b, 0xffff };
		585	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);
		586
		587	op = PictOpOver;
		588	}
		589
381	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	590	XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
382		591
383	XRenderFreePicture (dpy, src);	592	XRenderFreePicture (dpy, src);
384	XRenderFreePicture (dpy, dst);	593	XRenderFreePicture (dpy, dst);
385		594
386	return img;	595	return img;
387	}	596	}
388		597
		598	rxvt_img *
		599	rxvt_img::blend (rxvt_img *img, double factor)
		600	{
		601	rxvt_img *img2 = clone ();
		602	Display *dpy = s->display->dpy;
		603	Picture src = img->src_picture ();
		604	Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0);
		605	Picture mask = create_xrender_mask (dpy, img->pm, False);
		606
		607	XRenderColor mask_c;
		608
		609	mask_c.alpha = float_to_component (factor);
		610	mask_c.red =
		611	mask_c.green =
		612	mask_c.blue = 0;
		613	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		614
		615	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h);
		616
		617	XRenderFreePicture (dpy, src);
		618	XRenderFreePicture (dpy, dst);
		619	XRenderFreePicture (dpy, mask);
		620
		621	return img2;
		622	}
		623
389	#endif	624	#endif
390		625

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Comparing rxvt-unicode/src/rxvtimg.C (file contents): Revision 1.15 by root, Mon Jun 4 16:03:32 2012 UTC vs. Revision 1.69 by root, Sat Jun 9 11:15:29 2012 UTC

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Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.15 by root, Mon Jun 4 16:03:32 2012 UTC vs.
Revision 1.69 by root, Sat Jun 9 11:15:29 2012 UTC