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

Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.40 by root, Thu Jun 7 11:27:08 2012 UTC vs.
Revision 1.80 by root, Tue Jun 12 18:25:57 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	rxvt_img::rxvt_img (rxvt_screen screen, XRenderPictFormat format, int x, int y, int width, int height)	7	rxvt_img::rxvt_img (rxvt_screen screen, XRenderPictFormat format, int x, int y, int width, int height, int repeat)
8	: s(screen), x(x), y(y), w(width), h(height), format(format), repeat(RepeatNormal),	8	: s(screen), x(x), y(y), w(width), h(height), format(format), repeat(repeat),
9	pm(0), ref(0)	9	pm(0), ref(0)
10	{	10	{
11	}	11	}
12		12
13	rxvt_img::rxvt_img (const rxvt_img &img)	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)	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	{	15	{
16	++ref->cnt;	16	++ref->cnt;
17	}	17	}
18
19	#if 0
20	rxvt_img::rxvt_img (rxvt_screen screen, XRenderPictFormat format, int width, int height, Pixmap pixmap)
21	: s(screen), x(0), y(0), w(width), h(height), format(format), repeat(RepeatNormal), shared(false), pm(pixmap)
22	{
23	}
24	#endif
25		18
26	rxvt_img *	19	rxvt_img *
27	rxvt_img::new_from_root (rxvt_screen *s)	20	rxvt_img::new_from_root (rxvt_screen *s)
28	{	21	{
29	Display *dpy = s->display->dpy;	22	Display *dpy = s->display->dpy;
…		…
56	img->ref->ours = false;	49	img->ref->ours = false;
57		50
58	return img;	51	return img;
59	}	52	}
60		53
		54	# if HAVE_PIXBUF
		55
		56	rxvt_img *
		57	rxvt_img::new_from_pixbuf (rxvt_screen s, GdkPixbuf pb)
		58	{
		59	Display *dpy = s->display->dpy;
		60
		61	int width = gdk_pixbuf_get_width (pb);
		62	int height = gdk_pixbuf_get_height (pb);
		63
		64	if (width > 32767 \|\| height > 32767) // well, we could upload in chunks
		65	rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big (maximum size 32768x32768).\n");
		66
		67	// since we require rgb24/argb32 formats from xrender we assume
		68	// that both 24 and 32 bpp MUST be supported by any screen that supports xrender
		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 = 32;
		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	bool pb_has_alpha = gdk_pixbuf_get_has_alpha (pb);
		102	unsigned char *row = gdk_pixbuf_get_pixels (pb);
		103
		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 (!pb_has_alpha)
		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 = (255 << 24) \| (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, 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;
		155	}
		156
61	rxvt_img *	157	rxvt_img *
62	rxvt_img::new_from_file (rxvt_screen s, const char filename)	158	rxvt_img::new_from_file (rxvt_screen s, const char filename)
63	{	159	{
64	GError *err = 0;	160	GError *err = 0;
65	GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err);	161	GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err);
66		162
67	if (!pb)	163	if (!pb)
68	rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message);	164	rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message);
69		165
70	rxvt_img *img = new rxvt_img (	166	rxvt_img *img = new_from_pixbuf (s, pb);
71	s,
72	XRenderFindStandardFormat (s->display->dpy, gdk_pixbuf_get_has_alpha (pb) ? PictStandardARGB32 : PictStandardRGB24),
73	0,
74	0,
75	gdk_pixbuf_get_width (pb),
76	gdk_pixbuf_get_height (pb)
77	);
78	img->alloc ();
79	img->render_pixbuf (pb, 0, 0, img->w, img->h, 0, 0);
80		167
81	g_object_unref (pb);	168	g_object_unref (pb);
82		169
83	return img;	170	return img;
84	}	171	}
		172
		173	# endif
85		174
86	void	175	void
87	rxvt_img::destroy ()	176	rxvt_img::destroy ()
88	{	177	{
89	if (--ref->cnt)	178	if (--ref->cnt)
…		…
123	rxvt_img::unshare ()	212	rxvt_img::unshare ()
124	{	213	{
125	if (ref->cnt == 1 && ref->ours)	214	if (ref->cnt == 1 && ref->ours)
126	return;	215	return;
127		216
128	//TODO: maybe should reify instead
129	Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth);	217	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);	218	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);	219	XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0);
132	XFreeGC (s->display->dpy, gc);	220	XFreeGC (s->display->dpy, gc);
133		221
…		…
138	}	226	}
139		227
140	void	228	void
141	rxvt_img::fill (const rxvt_color &c)	229	rxvt_img::fill (const rxvt_color &c)
142	{	230	{
143	XGCValues gcv;	231	rgba cc;
144	gcv.foreground = c;	232	c.get (cc);
145	GC gc = XCreateGC (s->display->dpy, pm, GCForeground, &gcv);	233	XRenderColor rc = { cc.r, cc.g, cc.b, cc.a };
146	XFillRectangle (s->display->dpy, pm, gc, 0, 0, w, h);	234
147	XFreeGC (s->display->dpy, gc);	235	Display *dpy = s->display->dpy;
		236	Picture src = src_picture ();
		237	XRenderFillRectangle (dpy, PictOpSrc, src, &rc, 0, 0, w, h);
		238	XRenderFreePicture (dpy, src);
148	}	239	}
149		240
150	static void	241	static void
151	get_gaussian_kernel (int radius, int width, double kernel, XFixed params)	242	get_gaussian_kernel (int radius, int width, double kernel, XFixed params)
152	{	243	{
…		…
176		267
177	Display *dpy = s->display->dpy;	268	Display *dpy = s->display->dpy;
178	int size = max (rh, rv) * 2 + 1;	269	int size = max (rh, rv) * 2 + 1;
179	double kernel = (double )malloc (size * sizeof (double));	270	double kernel = (double )malloc (size * sizeof (double));
180	XFixed params = (XFixed )malloc ((size + 2) * sizeof (XFixed));	271	XFixed params = (XFixed )malloc ((size + 2) * sizeof (XFixed));
181	rxvt_img *img = new rxvt_img (s, format, x, y, w, h);	272	rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
182	img->alloc ();	273	img->alloc ();
183
184	Picture src = src_picture ();
185		274
186	XRenderPictureAttributes pa;	275	XRenderPictureAttributes pa;
187	pa.repeat = RepeatPad;	276	pa.repeat = RepeatPad;
188	Picture dst = XRenderCreatePicture (dpy, img->pm, format, CPRepeat, &pa);	277	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
		278	Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
189		279
190	Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth);	280	Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth);
191	Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa);	281	Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa);
192	XFreePixmap (dpy, tmp_pm);	282	XFreePixmap (dpy, tmp_pm);
193		283
…		…
209		299
210	size = rv * 2 + 1;	300	size = rv * 2 + 1;
211	get_gaussian_kernel (rv, size, kernel, params);	301	get_gaussian_kernel (rv, size, kernel, params);
212	::swap (params[0], params[1]);	302	::swap (params[0], params[1]);
213		303
214	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	304	XRenderSetPictureFilter (dpy, tmp, FilterConvolution, params, size+2);
215	XRenderComposite (dpy,	305	XRenderComposite (dpy,
216	PictOpSrc,	306	PictOpSrc,
217	tmp,	307	tmp,
218	None,	308	None,
219	dst,	309	dst,
…		…
223	w, h);	313	w, h);
224	}	314	}
225		315
226	free (kernel);	316	free (kernel);
227	free (params);	317	free (params);
		318
228	XRenderFreePicture (dpy, src);	319	XRenderFreePicture (dpy, src);
229	XRenderFreePicture (dpy, dst);	320	XRenderFreePicture (dpy, dst);
230	XRenderFreePicture (dpy, tmp);	321	XRenderFreePicture (dpy, tmp);
231		322
232	return img;	323	return img;
233	}	324	}
234		325
235	static Picture	326	static Picture
236	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb)	327	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha)
237	{	328	{
238	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);	329	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);
239		330
240	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);	331	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);
241	XRenderPictureAttributes pa;	332	XRenderPictureAttributes pa;
242	pa.repeat = True;	333	pa.repeat = RepeatNormal;
		334	pa.component_alpha = component_alpha;
243	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);	335	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat \| CPComponentAlpha, &pa);
244		336
245	XFreePixmap (dpy, pixmap);	337	XFreePixmap (dpy, pixmap);
246		338
247	return mask;	339	return mask;
248	}	340	}
249		341
		342	static void
		343	extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc)
		344	{
		345	int32_t x = clamp (c, cl0, cl1);
		346	c -= x;
		347	xc = x;
		348	}
		349
		350	static bool
		351	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)
		352	{
		353	extract (cl0, cl1, r, xr);
		354	extract (cl0, cl1, g, xg);
		355	extract (cl0, cl1, b, xb);
		356	extract (cl0, cl1, a, xa);
		357
		358	return xr \| xg \| xb \| xa;
		359	}
		360
250	void	361	void
251	rxvt_img::brightness (unsigned short r, unsigned short g, unsigned short b, unsigned short a)	362	rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a)
252	{	363	{
		364	unshare ();
		365
253	Display *dpy = s->display->dpy;	366	Display *dpy = s->display->dpy;
254	Picture src = create_xrender_mask (dpy, pm, True);
255	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);	367	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
256		368
		369	// loop should not be needed for brightness, as only -1..1 makes sense
		370	//while (r \| g \| b \| a)
		371	{
		372	unsigned short xr, xg, xb, xa;
257	XRenderColor mask_c;	373	XRenderColor mask_c;
258	mask_c.red = r;	374
259	mask_c.green = g;	375	if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
260	mask_c.blue = b;	376	XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
261	mask_c.alpha = a;	377
		378	if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
		379	{
		380	XRenderColor mask_w = { 65535, 65535, 65535, 65535 };
		381	XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
		382	mask_c.red = -mask_c.red; //TODO: verify that doing clamp, assign, and negation does the right thing
		383	mask_c.green = -mask_c.green;
		384	mask_c.blue = -mask_c.blue;
		385	mask_c.alpha = -mask_c.alpha;
		386	XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
		387	XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
		388	}
		389	}
		390
		391	XRenderFreePicture (dpy, dst);
		392	}
		393
		394	void
		395	rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a)
		396	{
		397	if (r < 0 \|\| g < 0 \|\| b < 0 \|\| a < 0)
		398	rxvt_fatal ("rxvt_img::contrast does not support negative values.\n");
		399
		400	rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
		401	img->alloc ();
		402
		403	{
		404	rxvt_color empty;
		405	empty.set (s, rgba (0, 0, 0, 0));
		406	img->fill (empty);
		407	}
		408
		409	// premultiply (yeah, these are not exact, sue me or fix it)
		410	r = (r * (a >> 8)) >> 8;
		411	g = (g * (a >> 8)) >> 8;
		412	b = (b * (a >> 8)) >> 8;
		413
		414	Display *dpy = s->display->dpy;
		415
		416	Picture src = src_picture ();
		417	Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
		418	Picture mul = create_xrender_mask (dpy, pm, True, True);
		419
		420	//TODO: this operator does not yet implement some useful contrast
		421	while (r \| g \| b \| a)
		422	{
		423	unsigned short xr, xg, xb, xa;
		424	XRenderColor mask_c;
		425
		426	if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
		427	{
262	XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1);	428	XRenderFillRectangle (dpy, PictOpSrc, mul, &mask_c, 0, 0, 1, 1);
263
264	XRenderComposite (dpy, PictOpAdd, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	429	XRenderComposite (dpy, PictOpAdd, src, mul, dst, 0, 0, 0, 0, 0, 0, w, h);
		430	}
		431	}
265		432
		433	XRenderFreePicture (dpy, mul);
		434	XRenderFreePicture (dpy, dst);
266	XRenderFreePicture (dpy, src);	435	XRenderFreePicture (dpy, src);
267	XRenderFreePicture (dpy, dst);
268	}
269		436
270	void	437	::swap (img->ref, ref);
271	rxvt_img::contrast (unsigned short r, unsigned short g, unsigned short b, unsigned short a)	438	::swap (img->pm , pm );
272	{
273	if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL))
274	return;
275		439
276	Display *dpy = s->display->dpy;	440	delete img;
277	Picture src = create_xrender_mask (dpy, pm, True);
278	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
279
280	XRenderColor mask_c;
281	mask_c.red = r;
282	mask_c.green = g;
283	mask_c.blue = b;
284	mask_c.alpha = a;
285	XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1);
286
287	XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
288
289	XRenderFreePicture (dpy, src);
290	XRenderFreePicture (dpy, dst);
291	}
292
293	bool
294	rxvt_img::render_pixbuf (GdkPixbuf *pixbuf, int src_x, int src_y, int width, int height, int dst_x, int dst_y)
295	{
296	Display *dpy = s->display->dpy;
297
298	if (s->visual->c_class != TrueColor)
299	return false;
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
336	GC gc = XCreateGC (dpy, pm, 0, 0);
337
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);
385	XFreeGC (dpy, gc);
386
387	return true;
388	}	441	}
389		442
390	rxvt_img *	443	rxvt_img *
391	rxvt_img::clone ()	444	rxvt_img::clone ()
392	{	445	{
393	return new rxvt_img (*this);	446	return new rxvt_img (*this);
		447	}
		448
		449	static XRenderPictFormat *
		450	find_alpha_format_for (Display dpy, XRenderPictFormat format)
		451	{
		452	if (format->direct.alphaMask)
		453	return format; // already has alpha
		454
		455	// try to find a suitable alpha format, one bit alpha is enough for our purposes
		456	if (format->type == PictTypeDirect)
		457	for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n)
		458	if (f->direct.alphaMask
		459	&& f->type == PictTypeDirect
		460	&& ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask )
		461	&& ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask)
		462	&& ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask ))
		463	return f;
		464
		465	// should be a very good fallback
		466	return XRenderFindStandardFormat (dpy, PictStandardARGB32);
394	}	467	}
395		468
396	rxvt_img *	469	rxvt_img *
397	rxvt_img::reify ()	470	rxvt_img::reify ()
398	{	471	{
399	if (x == 0 && y == 0 && w == ref->w && h == ref->h)	472	if (x == 0 && y == 0 && w == ref->w && h == ref->h)
400	return clone ();	473	return clone ();
401		474
402	Display *dpy = s->display->dpy;	475	Display *dpy = s->display->dpy;
403		476
		477	// add an alpha channel if...
404	bool alpha = !format->direct.alphaMask	478	bool alpha = !format->direct.alphaMask // pixmap has none yet
405	&& (x \|\| y)	479	&& (x \|\| y) // we need one because of non-zero offset
406	&& repeat == RepeatNone;	480	&& repeat == RepeatNone; // and we have no good pixels to fill with
407		481
408	rxvt_img *img = new rxvt_img (s, alpha ? XRenderFindStandardFormat (dpy, PictStandardARGB32) : format, 0, 0, w, h);	482	rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat);
409	img->alloc ();	483	img->alloc ();
410		484
411	Picture src = src_picture ();	485	Picture src = src_picture ();
412	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);	486	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
413		487
		488	if (alpha)
		489	{
		490	XRenderColor rc = { 0, 0, 0, 0 };
		491	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles
		492	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, -x, -y, ref->w, ref->h);
		493	}
		494	else
414	XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h);	495	XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h);
415		496
416	XRenderFreePicture (dpy, src);	497	XRenderFreePicture (dpy, src);
417	XRenderFreePicture (dpy, dst);	498	XRenderFreePicture (dpy, dst);
418		499
419	return img;	500	return img;
420	}	501	}
…		…
438	}	519	}
439		520
440	return img;	521	return img;
441	}	522	}
442		523
443	rxvt_img *	524	static void
444	rxvt_img::transform (int new_width, int new_height, double matrix[9])	525	mat_invert (double mat[3][3], double (&inv)[3][3])
445	{	526	{
		527	double s0 = mat [2][2] * mat [1][1] - mat [2][1] * mat [1][2];
		528	double s1 = mat [2][1] * mat [0][2] - mat [2][2] * mat [0][1];
		529	double s2 = mat [1][2] * mat [0][1] - mat [1][1] * mat [0][2];
		530
		531	double invdet = 1. / (mat [0][0] * s0 + mat [1][0] * s1 + mat [2][0] * s2);
		532
		533	inv [0][0] = invdet * s0;
		534	inv [0][1] = invdet * s1;
		535	inv [0][2] = invdet * s2;
		536
		537	inv [1][0] = invdet * (mat [2][0] * mat [1][2] - mat [2][2] * mat [1][0]);
		538	inv [1][1] = invdet * (mat [2][2] * mat [0][0] - mat [2][0] * mat [0][2]);
		539	inv [1][2] = invdet * (mat [1][0] * mat [0][2] - mat [1][2] * mat [0][0]);
		540
		541	inv [2][0] = invdet * (mat [2][1] * mat [1][0] - mat [2][0] * mat [1][1]);
		542	inv [2][1] = invdet * (mat [2][0] * mat [0][1] - mat [2][1] * mat [0][0]);
		543	inv [2][2] = invdet * (mat [1][1] * mat [0][0] - mat [1][0] * mat [0][1]);
		544	}
		545
		546	static double
		547	mat_apply (double mat[3][3], int i, double x, double y)
		548	{
		549	double v = mat [i][0] * x + mat [i][1] * y + mat [i][2];
		550	double w = mat [2][0] * x + mat [2][1] * y + mat [2][2];
		551
		552	return v * (1. / w);
		553	}
		554
		555	rxvt_img *
		556	rxvt_img::transform (double matrix[3][3])
		557	{
		558	// find new offset
		559	int ox = mat_apply (matrix, 0, x, y);
		560	int oy = mat_apply (matrix, 1, x, y);
		561
		562	// calculate new pixel bounding box coordinates
		563	double rmin[2], rmax[2];
		564
		565	for (int i = 0; i < 2; ++i)
		566	{
		567	double v;
		568	v = mat_apply (matrix, i, 0, 0); rmin [i] = rmax [i] = v;
		569	v = mat_apply (matrix, i, w, 0); min_it (rmin [i], v); max_it (rmax [i], v);
		570	v = mat_apply (matrix, i, 0, h); min_it (rmin [i], v); max_it (rmax [i], v);
		571	v = mat_apply (matrix, i, w, h); min_it (rmin [i], v); max_it (rmax [i], v);
		572	}
		573
		574	int dx = floor (rmin [0]);
		575	int dy = floor (rmin [1]);
		576
		577	int new_width = ceil (rmax [0] - dx);
		578	int new_height = ceil (rmax [1] - dy);
		579
		580	double inv[3][3];
		581	mat_invert (matrix, inv);
		582
446	rxvt_img *img = new rxvt_img (s, format, 0, 0, new_width, new_height);	583	rxvt_img *img = new rxvt_img (s, format, ox - dx, oy - dy, new_width, new_height, repeat);
447	img->alloc ();	584	img->alloc ();
448		585
449	Display *dpy = s->display->dpy;	586	Display *dpy = s->display->dpy;
450	Picture src = src_picture ();	587	Picture src = src_picture ();
451	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);	588	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
452		589
453	XTransform xfrm;	590	XTransform xfrm;
454		591
455	for (int i = 0; i < 3; ++i)	592	for (int i = 0; i < 3; ++i)
456	for (int j = 0; j < 3; ++j)	593	for (int j = 0; j < 3; ++j)
457	xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);	594	xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]);
458
459	xfrm.matrix [0][2] += XDoubleToFixed (x);//TODO
460	xfrm.matrix [0][3] += XDoubleToFixed (y);
461		595
462	XRenderSetPictureFilter (dpy, src, "good", 0, 0);	596	XRenderSetPictureFilter (dpy, src, "good", 0, 0);
463	XRenderSetPictureTransform (dpy, src, &xfrm);	597	XRenderSetPictureTransform (dpy, src, &xfrm);
464	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height);	598	XRenderComposite (dpy, PictOpSrc, src, None, dst, dx, dy, 0, 0, 0, 0, new_width, new_height);
465		599
466	XRenderFreePicture (dpy, src);	600	XRenderFreePicture (dpy, src);
467	XRenderFreePicture (dpy, dst);	601	XRenderFreePicture (dpy, dst);
468		602
469	return img;	603	return img;
470	}	604	}
471		605
472	rxvt_img *	606	rxvt_img *
473	rxvt_img::scale (int new_width, int new_height)	607	rxvt_img::scale (int new_width, int new_height)
474	{	608	{
		609	if (w == new_width && h == new_height)
		610	return clone ();
		611
475	double matrix[9] = {	612	double matrix[3][3] = {
476	w / (double)new_width, 0, 0,	613	{ new_width / (double)w, 0, 0 },
477	0, h / (double)new_height, 0,	614	{ 0, new_height / (double)h, 0 },
478	0, 0, 1	615	{ 0, 0, 1 }
479	};	616	};
480		617
481	return transform (new_width, new_height, matrix);	618	int old_repeat_mode = repeat;
482	}	619	repeat = RepeatPad; // not right, but xrender can't properly scale it seems
483		620
		621	rxvt_img *img = transform (matrix);
		622
		623	repeat = old_repeat_mode;
		624	img->repeat = repeat;
		625
		626	return img;
		627	}
		628
484	rxvt_img *	629	rxvt_img *
485	rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi)	630	rxvt_img::rotate (int cx, int cy, double phi)
486	{	631	{
487	double s = sin (phi);	632	double s = sin (phi);
488	double c = cos (phi);	633	double c = cos (phi);
489		634
490	double matrix[9] = {	635	double matrix[3][3] = {
491	c, -s, -c * x + s * y + x,	636	//{ c, -s, cx - c * cx + s * cy },
492	s, c, -s * x - c * y + y,	637	//{ s, c, cy - s * cx - c * cy },
493	0, 0, 1	638	//{ 0, 0, 1 }
		639	{ c, -s, 0 },
		640	{ s, c, 0 },
		641	{ 0, 0, 1 }
494	};	642	};
495		643
496	return transform (new_width, new_height, matrix);	644	move (-cx, -cy);
497	}	645	rxvt_img *img = transform (matrix);
		646	move ( cx, cy);
		647	img->move (cx, cy);
498		648
		649	return img;
		650	}
		651
499	rxvt_img *	652	rxvt_img *
500	rxvt_img::convert_to (XRenderPictFormat *new_format, const rxvt_color &bg)	653	rxvt_img::convert_format (XRenderPictFormat *new_format, const rxvt_color &bg)
501	{	654	{
502	if (new_format == format)	655	if (new_format == format)
503	return clone ();	656	return clone ();
504		657
505	rxvt_img *img = new rxvt_img (s, new_format, 0, 0, w, h);	658	rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat);
506	img->alloc ();	659	img->alloc ();
507		660
508	Display *dpy = s->display->dpy;	661	Display *dpy = s->display->dpy;
509	Picture src = src_picture ();	662	Picture src = src_picture ();
510	Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);	663	Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);
…		…
535	{	688	{
536	rxvt_img *img2 = clone ();	689	rxvt_img *img2 = clone ();
537	Display *dpy = s->display->dpy;	690	Display *dpy = s->display->dpy;
538	Picture src = img->src_picture ();	691	Picture src = img->src_picture ();
539	Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0);	692	Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0);
540	Picture mask = create_xrender_mask (dpy, img->pm, False);	693	Picture mask = create_xrender_mask (dpy, img->pm, False, False);
541		694
542	XRenderColor mask_c;	695	XRenderColor mask_c;
543		696
544	mask_c.alpha = float_to_component (factor);	697	mask_c.alpha = float_to_component (factor);
545	mask_c.red =	698	mask_c.red =

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Comparing rxvt-unicode/src/rxvtimg.C (file contents): Revision 1.40 by root, Thu Jun 7 11:27:08 2012 UTC vs. Revision 1.80 by root, Tue Jun 12 18:25:57 2012 UTC

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Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.40 by root, Thu Jun 7 11:27:08 2012 UTC vs.
Revision 1.80 by root, Tue Jun 12 18:25:57 2012 UTC