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

Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.6 by sf-exg, Sun Jun 3 18:49:55 2012 UTC vs.
Revision 1.46 by root, Thu Jun 7 18:07:42 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)	8	: s(screen), x(x), y(y), w(width), h(height), format(format), repeat(repeat),
		9	pm(0), ref(0)
11	{	10	{
12	pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth);
13	}	11	}
14		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	#if 0
15	rxvt_img::rxvt_img (rxvt_screen screen, XRenderPictFormat format, int width, int height, Pixmap pixmap)	20	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)	21	: s(screen), x(0), y(0), w(width), h(height), format(format), repeat(RepeatNormal), shared(false), pm(pixmap)
17	{	22	{
		23	}
		24	#endif
		25
		26	rxvt_img *
		27	rxvt_img::new_from_root (rxvt_screen *s)
		28	{
		29	Display *dpy = s->display->dpy;
		30	unsigned int root_pm_w, root_pm_h;
		31	Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_XROOTPMAP_ID]);
		32	if (root_pixmap == None)
		33	root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_ESETROOT_PMAP_ID]);
		34
		35	if (root_pixmap == None)
		36	return 0;
		37
		38	Window wdummy;
		39	int idummy;
		40	unsigned int udummy;
		41
		42	if (!XGetGeometry (dpy, root_pixmap, &wdummy, &idummy, &idummy, &root_pm_w, &root_pm_h, &udummy, &udummy))
		43	return 0;
		44
		45	rxvt_img *img = new rxvt_img (
		46	s,
		47	XRenderFindVisualFormat (dpy, DefaultVisual (dpy, s->display->screen)),
		48	0,
		49	0,
		50	root_pm_w,
		51	root_pm_h
		52	);
		53
		54	img->pm = root_pixmap;
		55	img->ref = new pixref (root_pm_w, root_pm_h);
		56	img->ref->ours = false;
		57
		58	return img;
18	}	59	}
19		60
20	rxvt_img *	61	rxvt_img *
21	rxvt_img::new_from_file (rxvt_screen s, const char filename)	62	rxvt_img::new_from_file (rxvt_screen s, const char filename)
22	{	63	{
23	GError *err;	64	GError *err = 0;
24	GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err);	65	GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err);
25		66
26	if (!pb)	67	if (!pb)
27	return 0;	68	rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message);
28		69
29	rxvt_img *img = new rxvt_img (	70	rxvt_img *img = new rxvt_img (
30	s,	71	s,
31	XRenderFindStandardFormat (s->display->dpy, gdk_pixbuf_get_has_alpha (pb) ? PictStandardARGB32 : PictStandardRGB24),	72	XRenderFindStandardFormat (s->display->dpy, gdk_pixbuf_get_has_alpha (pb) ? PictStandardARGB32 : PictStandardRGB24),
		73	0,
		74	0,
32	gdk_pixbuf_get_width (pb),	75	gdk_pixbuf_get_width (pb),
33	gdk_pixbuf_get_height (pb)	76	gdk_pixbuf_get_height (pb)
34	);	77	);
35		78	img->alloc ();
36	img->render (pb, 0, 0, img->w, img->h, 0, 0);	79	img->render_pixbuf (pb, 0, 0, img->w, img->h, 0, 0);
37		80
		81	g_object_unref (pb);
		82
		83	return img;
		84	}
		85
		86	void
		87	rxvt_img::destroy ()
		88	{
		89	if (--ref->cnt)
38	return img;	90	return;
		91
		92	if (pm && ref->ours)
		93	XFreePixmap (s->display->dpy, pm);
		94
		95	delete ref;
39	}	96	}
40		97
41	rxvt_img::~rxvt_img ()	98	rxvt_img::~rxvt_img ()
42	{	99	{
43	if (!shared)	100	destroy ();
		101	}
		102
		103	void
		104	rxvt_img::alloc ()
		105	{
		106	pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth);
		107	ref = new pixref (w, h);
		108	}
		109
		110	Picture
		111	rxvt_img::src_picture ()
		112	{
		113	Display *dpy = s->display->dpy;
		114
		115	XRenderPictureAttributes pa;
		116	pa.repeat = repeat;
		117	Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
		118
		119	return pic;
		120	}
		121
		122	void
		123	rxvt_img::unshare ()
		124	{
		125	if (ref->cnt == 1 && ref->ours)
		126	return;
		127
		128	//TODO: maybe should reify instead
		129	Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth);
		130	GC gc = XCreateGC (s->display->dpy, pm, 0, 0);
		131	XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0);
44	XFreePixmap (s->display->dpy, pm);	132	XFreeGC (s->display->dpy, gc);
		133
		134	destroy ();
		135
		136	pm = pm2;
		137	ref = new pixref (ref->w, ref->h);
45	}	138	}
46		139
47	void	140	void
48	rxvt_img::fill (const rxvt_color &c)	141	rxvt_img::fill (const rxvt_color &c)
49	{	142	{
…		…
73		166
74	for (int i = 0; i < width; i++)	167	for (int i = 0; i < width; i++)
75	params[i+2] = XDoubleToFixed (kernel[i] / sum);	168	params[i+2] = XDoubleToFixed (kernel[i] / sum);
76	}	169	}
77		170
78	void	171	rxvt_img *
79	rxvt_img::blur (int rh, int rv)	172	rxvt_img::blur (int rh, int rv)
80	{	173	{
81	if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV))	174	if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV))
82	return;	175	return clone ();
83		176
84	Display *dpy = s->display->dpy;	177	Display *dpy = s->display->dpy;
85	int size = max (rh, rv) * 2 + 1;	178	int size = max (rh, rv) * 2 + 1;
86	double kernel = (double )malloc (size * sizeof (double));	179	double kernel = (double )malloc (size * sizeof (double));
87	XFixed params = (XFixed )malloc ((size + 2) * sizeof (XFixed));	180	XFixed params = (XFixed )malloc ((size + 2) * sizeof (XFixed));
		181	rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
		182	img->alloc ();
		183
		184	Picture src = src_picture ();
88		185
89	XRenderPictureAttributes pa;	186	XRenderPictureAttributes pa;
90
91	pa.repeat = RepeatPad;	187	pa.repeat = RepeatPad;
92	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);	188	Picture dst = XRenderCreatePicture (dpy, img->pm, format, CPRepeat, &pa);
		189
93	Pixmap tmp = XCreatePixmap (dpy, pm, w, h, format->depth);	190	Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth);
94	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);	191	Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa);
95	XFreePixmap (dpy, tmp);	192	XFreePixmap (dpy, tmp_pm);
96		193
97	if (kernel && params)	194	if (kernel && params)
98	{	195	{
99	size = rh * 2 + 1;	196	size = rh * 2 + 1;
100	get_gaussian_kernel (rh, size, kernel, params);	197	get_gaussian_kernel (rh, size, kernel, params);
…		…
102	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	199	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
103	XRenderComposite (dpy,	200	XRenderComposite (dpy,
104	PictOpSrc,	201	PictOpSrc,
105	src,	202	src,
106	None,	203	None,
107	dst,	204	tmp,
108	0, 0,	205	0, 0,
109	0, 0,	206	0, 0,
110	0, 0,	207	0, 0,
111	w, h);	208	w, h);
112		209
113	::swap (src, dst);
114
115	size = rv * 2 + 1;	210	size = rv * 2 + 1;
116	get_gaussian_kernel (rv, size, kernel, params);	211	get_gaussian_kernel (rv, size, kernel, params);
117	::swap (params[0], params[1]);	212	::swap (params[0], params[1]);
118		213
119	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	214	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
120	XRenderComposite (dpy,	215	XRenderComposite (dpy,
121	PictOpSrc,	216	PictOpSrc,
122	src,	217	tmp,
123	None,	218	None,
124	dst,	219	dst,
125	0, 0,	220	0, 0,
126	0, 0,	221	0, 0,
127	0, 0,	222	0, 0,
…		…
130		225
131	free (kernel);	226	free (kernel);
132	free (params);	227	free (params);
133	XRenderFreePicture (dpy, src);	228	XRenderFreePicture (dpy, src);
134	XRenderFreePicture (dpy, dst);	229	XRenderFreePicture (dpy, dst);
		230	XRenderFreePicture (dpy, tmp);
		231
		232	return img;
135	}	233	}
136		234
137	static Picture	235	static Picture
138	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb)	236	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb)
139	{	237	{
…		…
148		246
149	return mask;	247	return mask;
150	}	248	}
151		249
152	void	250	void
153	rxvt_img::brightness (double r, double g, double b, double a)	251	rxvt_img::brightness (unsigned short r, unsigned short g, unsigned short b, unsigned short a)
154	{	252	{
155	Display *dpy = s->display->dpy;	253	Display *dpy = s->display->dpy;
156	Picture src = create_xrender_mask (dpy, pm, True);	254	Picture src = create_xrender_mask (dpy, pm, True);
157	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);	255	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
158		256
159	XRenderColor mask_c;	257	XRenderColor mask_c;
160	mask_c.red = float_to_component (r);	258	mask_c.red = r;
161	mask_c.green = float_to_component (g);	259	mask_c.green = g;
162	mask_c.blue = float_to_component (b);	260	mask_c.blue = b;
163	mask_c.alpha = float_to_component (a);	261	mask_c.alpha = a;
164	XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1);	262	XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1);
165		263
166	XRenderComposite (dpy, PictOpAdd, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	264	XRenderComposite (dpy, PictOpAdd, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
		265
		266	XRenderFreePicture (dpy, src);
		267	XRenderFreePicture (dpy, dst);
167	}	268	}
168		269
169	void	270	void
170	rxvt_img::contrast (double r, double g, double b, double a)	271	rxvt_img::contrast (unsigned short r, unsigned short g, unsigned short b, unsigned short a)
171	{	272	{
172	if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL))	273	if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL))
173	return;	274	return;
174		275
175	Display *dpy = s->display->dpy;	276	Display *dpy = s->display->dpy;
176	Picture src = create_xrender_mask (dpy, pm, True);	277	Picture src = create_xrender_mask (dpy, pm, True);
177	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);	278	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
178		279
179	XRenderColor mask_c;	280	XRenderColor mask_c;
180	mask_c.red = float_to_component (r);	281	mask_c.red = r;
181	mask_c.green = float_to_component (g);	282	mask_c.green = g;
182	mask_c.blue = float_to_component (b);	283	mask_c.blue = b;
183	mask_c.alpha = float_to_component (a);	284	mask_c.alpha = a;
184	XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1);	285	XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1);
185		286
186	XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	287	XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
187	}
188		288
189	void	289	XRenderFreePicture (dpy, src);
		290	XRenderFreePicture (dpy, dst);
		291	}
		292
		293	bool
190	rxvt_img::render (GdkPixbuf *pixbuf, int src_x, int src_y, int width, int height, int dst_x, int dst_y)	294	rxvt_img::render_pixbuf (GdkPixbuf *pixbuf, int src_x, int src_y, int width, int height, int dst_x, int dst_y)
191	{	295	{
192	//TODO	296	Display *dpy = s->display->dpy;
193	}
194		297
195	rxvt_img *	298	if (s->visual->c_class != TrueColor)
196	rxvt_img::copy ()	299	return false;
197	{	300
		301	uint32_t red_mask, green_mask, blue_mask, alpha_mask;
		302
		303	red_mask = (uint32_t)format->direct.redMask << format->direct.red;
		304	green_mask = (uint32_t)format->direct.greenMask << format->direct.green;
		305	blue_mask = (uint32_t)format->direct.blueMask << format->direct.blue;
		306	alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;
		307
		308	int width_r = ecb_popcount32 (red_mask);
		309	int width_g = ecb_popcount32 (green_mask);
		310	int width_b = ecb_popcount32 (blue_mask);
		311	int width_a = ecb_popcount32 (alpha_mask);
		312
		313	if (width_r > 8 \|\| width_g > 8 \|\| width_b > 8 \|\| width_a > 8)
		314	return false;
		315
		316	int sh_r = ecb_ctz32 (red_mask);
		317	int sh_g = ecb_ctz32 (green_mask);
		318	int sh_b = ecb_ctz32 (blue_mask);
		319	int sh_a = ecb_ctz32 (alpha_mask);
		320
		321	if (width > 32767 \|\| height > 32767)
		322	return false;
		323
		324	XImage *ximage = XCreateImage (dpy, s->visual, format->depth, ZPixmap, 0, 0,
		325	width, height, 32, 0);
		326	if (!ximage)
		327	return false;
		328
		329	if (height > INT_MAX / ximage->bytes_per_line
		330	\|\| !(ximage->data = (char )malloc (height ximage->bytes_per_line)))
		331	{
		332	XDestroyImage (ximage);
		333	return false;
		334	}
		335
198	GC gc = XCreateGC (s->display->dpy, pm, 0, 0);	336	GC gc = XCreateGC (dpy, pm, 0, 0);
199	Pixmap pm2 = XCreatePixmap (s->display->dpy, pm, w, h, format->depth);	337
200	XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, w, h, 0, 0);	338	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
		339
		340	int rowstride = gdk_pixbuf_get_rowstride (pixbuf);
		341	int channels = gdk_pixbuf_get_n_channels (pixbuf);
		342	unsigned char row = gdk_pixbuf_get_pixels (pixbuf) + src_y rowstride + src_x * channels;
		343	char *line = ximage->data;
		344
		345	for (int y = 0; y < height; y++)
		346	{
		347	for (int x = 0; x < width; x++)
		348	{
		349	unsigned char pixel = row + x channels;
		350	uint32_t value;
		351	unsigned char r, g, b, a;
		352
		353	if (channels == 4)
		354	{
		355	a = pixel[3];
		356	r = pixel[0] * a / 0xff;
		357	g = pixel[1] * a / 0xff;
		358	b = pixel[2] * a / 0xff;
		359	}
		360	else
		361	{
		362	a = 0xff;
		363	r = pixel[0];
		364	g = pixel[1];
		365	b = pixel[2];
		366	}
		367
		368	value = ((r >> (8 - width_r)) << sh_r)
		369	\| ((g >> (8 - width_g)) << sh_g)
		370	\| ((b >> (8 - width_b)) << sh_b)
		371	\| ((a >> (8 - width_a)) << sh_a);
		372
		373	if (ximage->bits_per_pixel == 32)
		374	((uint32_t *)line)[x] = value;
		375	else
		376	XPutPixel (ximage, x, y, value);
		377	}
		378
		379	row += rowstride;
		380	line += ximage->bytes_per_line;
		381	}
		382
		383	XPutImage (dpy, pm, gc, ximage, 0, 0, dst_x, dst_y, width, height);
		384	XDestroyImage (ximage);
201	XFreeGC (s->display->dpy, gc);	385	XFreeGC (dpy, gc);
202	return new rxvt_img (s, format, w, h, pm2);
203	}
204		386
		387	return true;
		388	}
		389
205	rxvt_img *	390	rxvt_img *
		391	rxvt_img::clone ()
		392	{
		393	return new rxvt_img (*this);
		394	}
		395
		396
		397	static XRenderPictFormat *
		398	find_alpha_format_for (Display dpy, XRenderPictFormat format)
		399	{
		400	if (format->direct.alphaMask)
		401	return format; // already has alpha
		402
		403	// try to find a suitable alpha format, one bit alpha is enough for our purposes
		404	if (format->type == PictTypeDirect)
		405	for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n)
		406	if (f->direct.alphaMask
		407	&& f->type == PictTypeDirect
		408	&& ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask )
		409	&& ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask)
		410	&& ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask ))
		411	return f;
		412
		413	// should be a very good fallback
		414	return XRenderFindStandardFormat (dpy, PictStandardARGB32);
		415	}
		416
		417	rxvt_img *
		418	rxvt_img::reify ()
		419	{
		420	if (x == 0 && y == 0 && w == ref->w && h == ref->h)
		421	return clone ();
		422
		423	Display *dpy = s->display->dpy;
		424
		425	bool alpha = !format->direct.alphaMask
		426	&& (x \|\| y)
		427	&& repeat == RepeatNone;
		428
		429	rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat);
		430	img->alloc ();
		431
		432	Picture src = src_picture ();
		433	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
		434
		435	if (alpha)
		436	{
		437	XRenderColor rc = { 0, 0, 0, 0 };
		438	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles
		439	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, -x, -y, ref->w, ref->h);
		440	}
		441	else
		442	XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h);
		443
		444	XRenderFreePicture (dpy, src);
		445	XRenderFreePicture (dpy, dst);
		446
		447	return img;
		448	}
		449
		450	rxvt_img *
		451	rxvt_img::sub_rect (int x, int y, int width, int height)
		452	{
		453	rxvt_img *img = clone ();
		454
		455	img->x += x;
		456	img->y += y;
		457
		458	if (w != width \|\| h != height)
		459	{
		460	img->w = width;
		461	img->h = height;
		462
		463	rxvt_img *img2 = img->reify ();
		464	delete img;
		465	img = img2;
		466	}
		467
		468	return img;
		469	}
		470
		471	rxvt_img *
206	rxvt_img::transform (int new_width, int new_height, double matrix[16])	472	rxvt_img::transform (int new_width, int new_height, double matrix[9])
207	{	473	{
208	//TODO	474	rxvt_img *img = new rxvt_img (s, format, 0, 0, new_width, new_height, repeat);
		475	img->alloc ();
		476
		477	Display *dpy = s->display->dpy;
		478	Picture src = src_picture ();
		479	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
		480
		481	XTransform xfrm;
		482
		483	for (int i = 0; i < 3; ++i)
		484	for (int j = 0; j < 3; ++j)
		485	xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);
		486
		487	#if 0
		488	xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO
		489	xfrm.matrix [1][2] -= XDoubleToFixed (y);
		490	#endif
		491
		492	XRenderSetPictureFilter (dpy, src, "good", 0, 0);
		493	XRenderSetPictureTransform (dpy, src, &xfrm);
		494	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height);
		495
		496	XRenderFreePicture (dpy, src);
		497	XRenderFreePicture (dpy, dst);
		498
		499	return img;
209	}	500	}
210		501
211	rxvt_img *	502	rxvt_img *
212	rxvt_img::scale (int new_width, int new_height)	503	rxvt_img::scale (int new_width, int new_height)
213	{	504	{
214	// use transform	505	if (w == new_width && h == new_height)
215	//TODO	506	return clone ();
216	}
217		507
		508	double matrix[9] = {
		509	w / (double)new_width, 0, 0,
		510	0, h / (double)new_height, 0,
		511	0, 0, 1
		512	};
		513
		514	int old_repeat_mode = repeat;
		515	repeat = RepeatPad; // not right, but xrender can't proeprly scale it seems
		516
		517	rxvt_img *img = transform (new_width, new_height, matrix);
		518
		519	repeat = old_repeat_mode;
		520	img->repeat = repeat;
		521
		522	return img;
		523	}
		524
		525	rxvt_img *
		526	rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi)
		527	{
		528	double s = sin (phi);
		529	double c = cos (phi);
		530
		531	double matrix[9] = {
		532	c, -s, -c * x + s * y + x,
		533	s, c, -s * x - c * y + y,
		534	0, 0, 1
		535	};
		536
		537	return transform (new_width, new_height, matrix);
		538	}
		539
		540	rxvt_img *
		541	rxvt_img::convert_format (XRenderPictFormat *new_format, const rxvt_color &bg)
		542	{
		543	if (new_format == format)
		544	return clone ();
		545
		546	rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat);
		547	img->alloc ();
		548
		549	Display *dpy = s->display->dpy;
		550	Picture src = src_picture ();
		551	Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);
		552	int op = PictOpSrc;
		553
		554	if (format->direct.alphaMask && !new_format->direct.alphaMask)
		555	{
		556	// does it have to be that complicated
		557	rgba c;
		558	bg.get (c);
		559
		560	XRenderColor rc = { c.r, c.g, c.b, 0xffff };
		561	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);
		562
		563	op = PictOpOver;
		564	}
		565
		566	XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
		567
		568	XRenderFreePicture (dpy, src);
		569	XRenderFreePicture (dpy, dst);
		570
		571	return img;
		572	}
		573
		574	rxvt_img *
		575	rxvt_img::blend (rxvt_img *img, double factor)
		576	{
		577	rxvt_img *img2 = clone ();
		578	Display *dpy = s->display->dpy;
		579	Picture src = img->src_picture ();
		580	Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0);
		581	Picture mask = create_xrender_mask (dpy, img->pm, False);
		582
		583	XRenderColor mask_c;
		584
		585	mask_c.alpha = float_to_component (factor);
		586	mask_c.red =
		587	mask_c.green =
		588	mask_c.blue = 0;
		589	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		590
		591	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h);
		592
		593	XRenderFreePicture (dpy, src);
		594	XRenderFreePicture (dpy, dst);
		595	XRenderFreePicture (dpy, mask);
		596
		597	return img2;
		598	}
218		599
219	#endif	600	#endif
220		601

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Comparing rxvt-unicode/src/rxvtimg.C (file contents): Revision 1.6 by sf-exg, Sun Jun 3 18:49:55 2012 UTC vs. Revision 1.46 by root, Thu Jun 7 18:07:42 2012 UTC

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Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.6 by sf-exg, Sun Jun 3 18:49:55 2012 UTC vs.
Revision 1.46 by root, Thu Jun 7 18:07:42 2012 UTC