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

Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.16 by root, Mon Jun 4 16:12:55 2012 UTC vs.
Revision 1.73 by sf-exg, Sat Jun 9 17:28:03 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	int depth = gdk_pixbuf_get_has_alpha (pb) ? 32 : 24;
		69
		70	int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
		71
		72	XImage xi;
		73
		74	xi.width = width;
		75	xi.height = height;
		76	xi.xoffset = 0;
		77	xi.format = ZPixmap;
		78	xi.byte_order = ImageByteOrder (dpy);
		79	xi.bitmap_unit = 0; //XY only, unused
		80	xi.bitmap_bit_order = 0; //XY only, unused
		81	xi.bitmap_pad = BitmapPad (dpy);
		82	xi.depth = depth;
		83	xi.bytes_per_line = 0;
		84	xi.bits_per_pixel = 32; //Z only
		85	xi.red_mask = 0x00000000; //Z only, unused
		86	xi.green_mask = 0x00000000; //Z only, unused
		87	xi.blue_mask = 0x00000000; //Z only, unused
		88	xi.obdata = 0; // probably unused
		89
		90	bool byte_order_mismatch = byte_order != xi.byte_order;
		91
		92	if (!XInitImage (&xi))
		93	rxvt_fatal ("unable to initialise ximage, please report.\n");
		94
		95	if (height > INT_MAX / xi.bytes_per_line)
		96	rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n");
		97
		98	xi.data = (char )rxvt_malloc (height xi.bytes_per_line);
		99
		100	int rowstride = gdk_pixbuf_get_rowstride (pb);
		101
		102	assert (3 + (depth == 32) == gdk_pixbuf_get_n_channels (pb));
		103	unsigned char *row = gdk_pixbuf_get_pixels (pb);
		104	char *line = xi.data;
		105
		106	for (int y = 0; y < height; y++)
		107	{
		108	unsigned char *src = row;
		109	uint32_t dst = (uint32_t )line;
		110
		111	if (depth == 24)
		112	for (int x = 0; x < width; x++)
		113	{
		114	uint8_t r = *src++;
		115	uint8_t g = *src++;
		116	uint8_t b = *src++;
		117
		118	uint32_t v = (r << 16) \| (g << 8) \| b;
		119
		120	if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch)
		121	v = ecb_bswap32 (v);
		122
		123	*dst++ = v;
		124	}
		125	else
		126	for (int x = 0; x < width; x++)
		127	{
		128	uint32_t v = (uint32_t )src; src += 4;
		129
		130	if (ecb_big_endian ())
		131	v = ecb_bswap32 (v);
		132
		133	v = ecb_rotl32 (v, 8); // abgr to bgra
		134
		135	if (!byte_order_mismatch)
		136	v = ecb_bswap32 (v);
		137
		138	*dst++ = v;
		139	}
		140
		141	row += rowstride;
		142	line += xi.bytes_per_line;
		143	}
		144
		145	rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, depth == 24 ? PictStandardRGB24 : PictStandardARGB32), 0, 0, width, height);
		146	img->alloc ();
		147
		148	GC gc = XCreateGC (dpy, img->pm, 0, 0);
		149	XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height);
		150	XFreeGC (dpy, gc);
		151
		152	free (xi.data);
		153
		154	return img;
18	}	155	}
19		156
20	rxvt_img *	157	rxvt_img *
21	rxvt_img::new_from_file (rxvt_screen s, const char filename)	158	rxvt_img::new_from_file (rxvt_screen s, const char filename)
22	{	159	{
…		…
24	GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err);	161	GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err);
25		162
26	if (!pb)	163	if (!pb)
27	rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message);	164	rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message);
28		165
29	rxvt_img *img = new rxvt_img (	166	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		167
36	img->render_pixbuf (pb, 0, 0, img->w, img->h, 0, 0);	168	g_object_unref (pb);
37		169
		170	return img;
		171	}
		172	# endif
		173
		174	void
		175	rxvt_img::destroy ()
		176	{
		177	if (--ref->cnt)
38	return img;	178	return;
		179
		180	if (pm && ref->ours)
		181	XFreePixmap (s->display->dpy, pm);
		182
		183	delete ref;
39	}	184	}
40		185
41	rxvt_img::~rxvt_img ()	186	rxvt_img::~rxvt_img ()
42	{	187	{
43	if (!shared)	188	destroy ();
44	XFreePixmap (s->display->dpy, pm);	189	}
		190
		191	void
		192	rxvt_img::alloc ()
		193	{
		194	pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth);
		195	ref = new pixref (w, h);
		196	}
		197
		198	Picture
		199	rxvt_img::src_picture ()
		200	{
		201	Display *dpy = s->display->dpy;
		202
		203	XRenderPictureAttributes pa;
		204	pa.repeat = repeat;
		205	Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
		206
		207	return pic;
45	}	208	}
46		209
47	void	210	void
48	rxvt_img::unshare ()	211	rxvt_img::unshare ()
49	{	212	{
50	if (!shared)	213	if (ref->cnt == 1 && ref->ours)
51	return;	214	return;
52		215
53	rxvt_img *img = clone ();	216	Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth);
		217	GC gc = XCreateGC (s->display->dpy, pm, 0, 0);
		218	XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0);
		219	XFreeGC (s->display->dpy, gc);
54		220
55	::swap (pm , img->pm);	221	destroy ();
56	::swap (shared, img->shared);
57		222
58	delete img;	223	pm = pm2;
		224	ref = new pixref (ref->w, ref->h);
59	}	225	}
60		226
61	void	227	void
62	rxvt_img::fill (const rxvt_color &c)	228	rxvt_img::fill (const rxvt_color &c)
63	{	229	{
…		…
87		253
88	for (int i = 0; i < width; i++)	254	for (int i = 0; i < width; i++)
89	params[i+2] = XDoubleToFixed (kernel[i] / sum);	255	params[i+2] = XDoubleToFixed (kernel[i] / sum);
90	}	256	}
91		257
92	void	258	rxvt_img *
93	rxvt_img::blur (int rh, int rv)	259	rxvt_img::blur (int rh, int rv)
94	{	260	{
95	if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV))	261	if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV))
96	return;	262	return clone ();
97		263
98	Display *dpy = s->display->dpy;	264	Display *dpy = s->display->dpy;
99	int size = max (rh, rv) * 2 + 1;	265	int size = max (rh, rv) * 2 + 1;
100	double kernel = (double )malloc (size * sizeof (double));	266	double kernel = (double )malloc (size * sizeof (double));
101	XFixed params = (XFixed )malloc ((size + 2) * sizeof (XFixed));	267	XFixed params = (XFixed )malloc ((size + 2) * sizeof (XFixed));
		268	rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
		269	img->alloc ();
102		270
103	XRenderPictureAttributes pa;	271	XRenderPictureAttributes pa;
104
105	pa.repeat = RepeatPad;	272	pa.repeat = RepeatPad;
106	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);	273	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
		274	Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
		275
107	Pixmap tmp = XCreatePixmap (dpy, pm, w, h, format->depth);	276	Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth);
108	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);	277	Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa);
109	XFreePixmap (dpy, tmp);	278	XFreePixmap (dpy, tmp_pm);
110		279
111	if (kernel && params)	280	if (kernel && params)
112	{	281	{
113	size = rh * 2 + 1;	282	size = rh * 2 + 1;
114	get_gaussian_kernel (rh, size, kernel, params);	283	get_gaussian_kernel (rh, size, kernel, params);
115		284
116	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	285	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
117	XRenderComposite (dpy,	286	XRenderComposite (dpy,
118	PictOpSrc,	287	PictOpSrc,
119	src,	288	src,
		289	None,
		290	tmp,
		291	0, 0,
		292	0, 0,
		293	0, 0,
		294	w, h);
		295
		296	size = rv * 2 + 1;
		297	get_gaussian_kernel (rv, size, kernel, params);
		298	::swap (params[0], params[1]);
		299
		300	XRenderSetPictureFilter (dpy, tmp, FilterConvolution, params, size+2);
		301	XRenderComposite (dpy,
		302	PictOpSrc,
		303	tmp,
120	None,	304	None,
121	dst,	305	dst,
122	0, 0,	306	0, 0,
123	0, 0,	307	0, 0,
124	0, 0,	308	0, 0,
125	w, h);	309	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	}	310	}
144		311
145	free (kernel);	312	free (kernel);
146	free (params);	313	free (params);
147	XRenderFreePicture (dpy, src);	314	XRenderFreePicture (dpy, src);
148	XRenderFreePicture (dpy, dst);	315	XRenderFreePicture (dpy, dst);
149	}	316	XRenderFreePicture (dpy, tmp);
150		317
151	static Picture
152	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb)
153	{
154	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);
155
156	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);
157	XRenderPictureAttributes pa;
158	pa.repeat = True;
159	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
160
161	XFreePixmap (dpy, pixmap);
162
163	return mask;	318	return img;
		319	}
		320
		321	static void
		322	extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc)
		323	{
		324	int32_t x = clamp (c, cl0, cl1);
		325	c -= x;
		326	xc = x;
		327	}
		328
		329	static bool
		330	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)
		331	{
		332	extract (cl0, cl1, r, xr);
		333	extract (cl0, cl1, g, xg);
		334	extract (cl0, cl1, b, xb);
		335	extract (cl0, cl1, a, xa);
		336
		337	return xr \| xg \| xb \| xa;
164	}	338	}
165		339
166	void	340	void
167	rxvt_img::brightness (double r, double g, double b, double a)	341	rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a)
168	{	342	{
		343	unshare ();
		344
169	Display *dpy = s->display->dpy;	345	Display *dpy = s->display->dpy;
170	Picture src = create_xrender_mask (dpy, pm, True);
171	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);	346	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
172		347
		348	// loop should not be needed for brightness, as only -1..1 makes sense
		349	//while (r \| g \| b \| a)
		350	{
		351	unsigned short xr, xg, xb, xa;
		352	XRenderColor mask_c;
		353
		354	if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
		355	XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
		356
		357	if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
		358	{
		359	XRenderColor mask_w = { 65535, 65535, 65535, 65535 };
		360	XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
		361	mask_c.red = -mask_c.red; //TODO: verify that doing clamp, assign, and negation does the right thing
		362	mask_c.green = -mask_c.green;
		363	mask_c.blue = -mask_c.blue;
		364	mask_c.alpha = -mask_c.alpha;
		365	XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
		366	XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
		367	}
		368	}
		369
		370
		371	XRenderFreePicture (dpy, dst);
		372	}
		373
		374	void
		375	rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a)
		376	{
		377	if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL))
		378	{
		379	rxvt_warn ("rxvt_img::contrast operation not supported on this display, RENDER extension too old.\n");
		380	return;
		381	}
		382
		383	unshare ();
		384
		385	Display *dpy = s->display->dpy;
		386	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
		387
173	XRenderColor mask_c;	388	XRenderColor mask_c;
174	mask_c.red = float_to_component (r);	389	mask_c.red = r;
175	mask_c.green = float_to_component (g);	390	mask_c.green = g;
176	mask_c.blue = float_to_component (b);	391	mask_c.blue = b;
177	mask_c.alpha = float_to_component (a);	392	mask_c.alpha = a;
178	XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1);	393	XRenderFillRectangle (dpy, PictOpMultiply, dst, &mask_c, 0, 0, w, h);
179		394
180	XRenderComposite (dpy, PictOpAdd, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	395	XRenderFreePicture (dpy, dst);
181	}	396	}
182		397
183	void	398	rxvt_img *
184	rxvt_img::contrast (double r, double g, double b, double a)	399	rxvt_img::clone ()
185	{	400	{
186	if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL))	401	return new rxvt_img (*this);
		402	}
		403
		404	static XRenderPictFormat *
		405	find_alpha_format_for (Display dpy, XRenderPictFormat format)
		406	{
		407	if (format->direct.alphaMask)
		408	return format; // already has alpha
		409
		410	// try to find a suitable alpha format, one bit alpha is enough for our purposes
		411	if (format->type == PictTypeDirect)
		412	for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n)
		413	if (f->direct.alphaMask
		414	&& f->type == PictTypeDirect
		415	&& ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask )
		416	&& ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask)
		417	&& ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask ))
187	return;	418	return f;
188		419
		420	// should be a very good fallback
		421	return XRenderFindStandardFormat (dpy, PictStandardARGB32);
		422	}
		423
		424	rxvt_img *
		425	rxvt_img::reify ()
		426	{
		427	if (x == 0 && y == 0 && w == ref->w && h == ref->h)
		428	return clone ();
		429
189	Display *dpy = s->display->dpy;	430	Display *dpy = s->display->dpy;
190	Picture src = create_xrender_mask (dpy, pm, True);	431
		432	// add an alpha channel if...
		433	bool alpha = !format->direct.alphaMask // pixmap has none yet
		434	&& (x \|\| y) // we need one because of non-zero offset
		435	&& repeat == RepeatNone; // and we have no good pixels to fill with
		436
		437	rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat);
		438	img->alloc ();
		439
		440	Picture src = src_picture ();
191	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);	441	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
192		442
193	XRenderColor mask_c;	443	if (alpha)
194	mask_c.red = float_to_component (r);	444	{
195	mask_c.green = float_to_component (g);	445	XRenderColor rc = { 0, 0, 0, 0 };
196	mask_c.blue = float_to_component (b);	446	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles
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);	447	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, -x, -y, ref->w, ref->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	}	448	}
222	else	449	else
223	{	450	XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h);
224	red_mask = s->visual->red_mask;	451
225	green_mask = s->visual->green_mask;	452	XRenderFreePicture (dpy, src);
226	blue_mask = s->visual->blue_mask;	453	XRenderFreePicture (dpy, dst);
227	alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;	454
		455	return img;
		456	}
		457
		458	rxvt_img *
		459	rxvt_img::sub_rect (int x, int y, int width, int height)
		460	{
		461	rxvt_img *img = clone ();
		462
		463	img->x += x;
		464	img->y += y;
		465
		466	if (w != width \|\| h != height)
228	}	467	{
		468	img->w = width;
		469	img->h = height;
229		470
230	int width_r = ecb_popcount32 (red_mask);	471	rxvt_img *img2 = img->reify ();
231	int width_g = ecb_popcount32 (green_mask);	472	delete img;
232	int width_b = ecb_popcount32 (blue_mask);	473	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	{	474	}
254	XDestroyImage (ximage);
255	return false;
256	}
257		475
258	GC gc = XCreateGC (dpy, pm, 0, 0);	476	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	}	477	}
323		478
324	rxvt_img *	479	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])	480	rxvt_img::transform (int new_width, int new_height, double matrix[9])
336	{	481	{
337	rxvt_img *img = new rxvt_img (s, format, new_width, new_height);	482	rxvt_img *img = new rxvt_img (s, format, 0, 0, new_width, new_height, repeat);
		483	img->alloc ();
338		484
339	Display *dpy = s->display->dpy;	485	Display *dpy = s->display->dpy;
340	XRenderPictureAttributes pa;	486	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);	487	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
344		488
345	XTransform xfrm;	489	XTransform xfrm;
346		490
347	for (int i = 0; i < 3; ++i)	491	for (int i = 0; i < 3; ++i)
348	for (int j = 0; j < 3; ++j)	492	for (int j = 0; j < 3; ++j)
349	xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);	493	xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);
350		494
		495	xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO
		496	xfrm.matrix [1][2] -= XDoubleToFixed (y);
		497
		498	XRenderSetPictureFilter (dpy, src, "good", 0, 0);
351	XRenderSetPictureTransform (dpy, src, &xfrm);	499	XRenderSetPictureTransform (dpy, src, &xfrm);
352	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height);	500	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height);
353		501
354	XRenderFreePicture (dpy, src);	502	XRenderFreePicture (dpy, src);
355	XRenderFreePicture (dpy, dst);	503	XRenderFreePicture (dpy, dst);
…		…
358	}	506	}
359		507
360	rxvt_img *	508	rxvt_img *
361	rxvt_img::scale (int new_width, int new_height)	509	rxvt_img::scale (int new_width, int new_height)
362	{	510	{
		511	if (w == new_width && h == new_height)
		512	return clone ();
		513
363	double matrix[9] = {	514	double matrix[9] = {
364	w / (double)new_width, 0, 0,	515	w / (double)new_width, 0, 0,
365	0, h / (double)new_height, 0,	516	0, h / (double)new_height, 0,
366	0, 0, 1	517	0, 0, 1
367	};	518	};
368		519
		520	int old_repeat_mode = repeat;
		521	repeat = RepeatPad; // not right, but xrender can't proeprly scale it seems
		522
		523	rxvt_img *img = transform (new_width, new_height, matrix);
		524
		525	repeat = old_repeat_mode;
		526	img->repeat = repeat;
		527
		528	return img;
		529	}
		530
		531	rxvt_img *
		532	rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi)
		533	{
		534	double s = sin (phi);
		535	double c = cos (phi);
		536
		537	double matrix[9] = {
		538	c, -s, -c * x + s * y + x,
		539	s, c, -s * x - c * y + y,
		540	0, 0, 1
		541	};
		542
369	return transform (new_width, new_height, RepeatNormal, matrix);	543	return transform (new_width, new_height, matrix);
370	}	544	}
371		545
372	rxvt_img *	546	rxvt_img *
373	rxvt_img::convert_to (XRenderPictFormat *new_format)	547	rxvt_img::convert_format (XRenderPictFormat *new_format, const rxvt_color &bg)
374	{	548	{
		549	if (new_format == format)
		550	return clone ();
		551
375	rxvt_img *img = new rxvt_img (s, new_format, w, h);	552	rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat);
		553	img->alloc ();
376		554
377	Display *dpy = s->display->dpy;	555	Display *dpy = s->display->dpy;
378	Picture src = XRenderCreatePicture (dpy, pm, format, 0, 0);	556	Picture src = src_picture ();
379	Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);	557	Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);
		558	int op = PictOpSrc;
380		559
		560	if (format->direct.alphaMask && !new_format->direct.alphaMask)
		561	{
		562	// does it have to be that complicated
		563	rgba c;
		564	bg.get (c);
		565
		566	XRenderColor rc = { c.r, c.g, c.b, 0xffff };
		567	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);
		568
		569	op = PictOpOver;
		570	}
		571
381	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	572	XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
382		573
383	XRenderFreePicture (dpy, src);	574	XRenderFreePicture (dpy, src);
384	XRenderFreePicture (dpy, dst);	575	XRenderFreePicture (dpy, dst);
385		576
386	return img;	577	return img;
387	}	578	}
388		579
		580	rxvt_img *
		581	rxvt_img::blend (rxvt_img *img, double factor)
		582	{
		583	rxvt_img *img2 = clone ();
		584	Display *dpy = s->display->dpy;
		585	Picture src = img->src_picture ();
		586	Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0);
		587
		588	Pixmap pixmap = XCreatePixmap (dpy, img->pm, 1, 1, 8);
		589	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, PictStandardA8);
		590	XRenderPictureAttributes pa;
		591	pa.repeat = True;
		592	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
		593	XFreePixmap (dpy, pixmap);
		594
		595	XRenderColor mask_c;
		596
		597	mask_c.alpha = float_to_component (factor);
		598	mask_c.red =
		599	mask_c.green =
		600	mask_c.blue = 0;
		601	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		602
		603	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h);
		604
		605	XRenderFreePicture (dpy, src);
		606	XRenderFreePicture (dpy, dst);
		607	XRenderFreePicture (dpy, mask);
		608
		609	return img2;
		610	}
		611
389	#endif	612	#endif
390		613

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Comparing rxvt-unicode/src/rxvtimg.C (file contents): Revision 1.16 by root, Mon Jun 4 16:12:55 2012 UTC vs. Revision 1.73 by sf-exg, Sat Jun 9 17:28:03 2012 UTC

Diff Legend

Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.16 by root, Mon Jun 4 16:12:55 2012 UTC vs.
Revision 1.73 by sf-exg, Sat Jun 9 17:28:03 2012 UTC