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

Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.75 by sf-exg, Sun Jun 10 07:51:45 2012 UTC vs.
Revision 1.95 by root, Fri Jun 15 18:36:26 2012 UTC

…		…
		1	#include <string.h>
1	#include <math.h>	2	#include <math.h>
2	#include "../config.h"	3	#include "../config.h"
3	#include "rxvt.h"	4	#include "rxvt.h"
4		5
5	#if HAVE_IMG	6	#if HAVE_IMG
		7
		8	typedef rxvt_img::nv nv;
		9
		10	namespace
		11	{
		12
		13	struct mat3x3
		14	{
		15	nv v[3][3];
		16
		17	mat3x3 ()
		18	{
		19	}
		20
		21	mat3x3 (const nv *matrix)
		22	{
		23	memcpy (v, matrix, sizeof (v));
		24	}
		25
		26	mat3x3 (nv v11, nv v12, nv v13, nv v21, nv v22, nv v23, nv v31, nv v32, nv v33)
		27	{
		28	v[0][0] = v11; v[0][1] = v12; v[0][2] = v13;
		29	v[1][0] = v21; v[1][1] = v22; v[1][2] = v23;
		30	v[2][0] = v31; v[2][1] = v32; v[2][2] = v33;
		31	}
		32
		33	mat3x3 invert ();
		34
		35	nv *operator [](int i) { return &v[i][0]; }
		36	const nv *operator [](int i) const { return &v[i][0]; }
		37
		38	operator const nv * () const { return &v[0][0]; }
		39	operator nv * () { return &v[0][0]; }
		40
		41	// quite inefficient, hopefully gcc pulls the w calc out of any loops
		42	nv apply1 (int i, nv x, nv y)
		43	{
		44	mat3x3 &m = *this;
		45
		46	nv v = m[i][0] * x + m[i][1] * y + m[i][2];
		47	nv w = m[2][0] * x + m[2][1] * y + m[2][2];
		48
		49	return v * (1. / w);
		50	}
		51
		52	static mat3x3 translate (nv x, nv y);
		53	static mat3x3 scale (nv s, nv t);
		54	static mat3x3 rotate (nv phi);
		55	};
		56
		57	mat3x3
		58	mat3x3::invert ()
		59	{
		60	mat3x3 &m = *this;
		61	mat3x3 inv;
		62
		63	nv s0 = m[2][2] * m[1][1] - m[2][1] * m[1][2];
		64	nv s1 = m[2][1] * m[0][2] - m[2][2] * m[0][1];
		65	nv s2 = m[1][2] * m[0][1] - m[1][1] * m[0][2];
		66
		67	nv invdet = 1. / (m[0][0] * s0 + m[1][0] * s1 + m[2][0] * s2);
		68
		69	inv[0][0] = invdet * s0;
		70	inv[0][1] = invdet * s1;
		71	inv[0][2] = invdet * s2;
		72
		73	inv[1][0] = invdet * (m[2][0] * m[1][2] - m[2][2] * m[1][0]);
		74	inv[1][1] = invdet * (m[2][2] * m[0][0] - m[2][0] * m[0][2]);
		75	inv[1][2] = invdet * (m[1][0] * m[0][2] - m[1][2] * m[0][0]);
		76
		77	inv[2][0] = invdet * (m[2][1] * m[1][0] - m[2][0] * m[1][1]);
		78	inv[2][1] = invdet * (m[2][0] * m[0][1] - m[2][1] * m[0][0]);
		79	inv[2][2] = invdet * (m[1][1] * m[0][0] - m[1][0] * m[0][1]);
		80
		81	return inv;
		82	}
		83
		84	static mat3x3
		85	operator *(const mat3x3 &a, const mat3x3 &b)
		86	{
		87	mat3x3 r;
		88
		89	for (int i = 0; i < 3; ++i)
		90	for (int j = 0; j < 3; ++j)
		91	r[i][j] = a[i][0] * b[0][j]
		92	+ a[i][1] * b[1][j]
		93	+ a[i][2] * b[2][j];
		94
		95	return r;
		96	}
		97
		98	mat3x3
		99	mat3x3::translate (nv x, nv y)
		100	{
		101	return mat3x3 (
		102	1, 0, x,
		103	0, 1, y,
		104	0, 0, 1
		105	);
		106	}
		107
		108	mat3x3
		109	mat3x3::scale (nv s, nv t)
		110	{
		111	return mat3x3 (
		112	s, 0, 0,
		113	0, t, 0,
		114	0, 0, 1
		115	);
		116	}
		117
		118	// clockwise
		119	mat3x3
		120	mat3x3::rotate (nv phi)
		121	{
		122	nv s = sin (phi);
		123	nv c = cos (phi);
		124
		125	return mat3x3 (
		126	c, -s, 0,
		127	s, c, 0,
		128	0, 0, 1
		129	);
		130	}
		131
		132	}
		133
		134	#if 0
		135	struct pict
		136	{
		137	Display *dpy;
		138	Picture pic;
		139
		140	operator Picture () const
		141	{
		142	return pic;
		143	}
		144
		145	pict ()
		146	: pic (0)
		147	{
		148	}
		149
		150	pict (rxvt_img img, XRenderPictFormat format = 0)
		151	: dpy (img->s->display->dpy)
		152	{
		153	XRenderPictureAttributes pa;
		154	pa.repeat = img->repeat;
		155	pic = XRenderCreatePicture (dpy, img->pm, format ? format : img->format, CPRepeat, &pa);
		156	}
		157
		158	~pict ()
		159	{
		160	if (pic)
		161	XRenderFreePicture (dpy, pic);
		162	}
		163	};
		164	#endif
		165
		166	static XRenderPictFormat *
		167	find_alpha_format_for (Display dpy, XRenderPictFormat format)
		168	{
		169	if (format->direct.alphaMask)
		170	return format; // already has alpha
		171
		172	// try to find a suitable alpha format, one bit alpha is enough for our purposes
		173	if (format->type == PictTypeDirect)
		174	for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n)
		175	if (f->direct.alphaMask
		176	&& f->type == PictTypeDirect
		177	&& ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask )
		178	&& ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask)
		179	&& ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask ))
		180	return f;
		181
		182	// should be a very good fallback
		183	return XRenderFindStandardFormat (dpy, PictStandardARGB32);
		184	}
6		185
7	rxvt_img::rxvt_img (rxvt_screen screen, XRenderPictFormat format, int x, int y, int width, int height, int repeat)	186	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(repeat),	187	: s(screen), x(x), y(y), w(width), h(height), format(format), repeat(repeat),
9	pm(0), ref(0)	188	pm(0), ref(0)
10	{	189	{
50		229
51	return img;	230	return img;
52	}	231	}
53		232
54	# if HAVE_PIXBUF	233	# if HAVE_PIXBUF
		234
55	rxvt_img *	235	rxvt_img *
56	rxvt_img::new_from_pixbuf (rxvt_screen s, GdkPixbuf pb)	236	rxvt_img::new_from_pixbuf (rxvt_screen s, GdkPixbuf pb)
57	{	237	{
58	Display *dpy = s->display->dpy;	238	Display *dpy = s->display->dpy;
59		239
…		…
63	if (width > 32767 \|\| height > 32767) // well, we could upload in chunks	243	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");	244	rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big (maximum size 32768x32768).\n");
65		245
66	// since we require rgb24/argb32 formats from xrender we assume	246	// 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	247	// 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		248
70	int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;	249	int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
71		250
72	XImage xi;	251	XImage xi;
73		252
…		…
77	xi.format = ZPixmap;	256	xi.format = ZPixmap;
78	xi.byte_order = ImageByteOrder (dpy);	257	xi.byte_order = ImageByteOrder (dpy);
79	xi.bitmap_unit = 0; //XY only, unused	258	xi.bitmap_unit = 0; //XY only, unused
80	xi.bitmap_bit_order = 0; //XY only, unused	259	xi.bitmap_bit_order = 0; //XY only, unused
81	xi.bitmap_pad = BitmapPad (dpy);	260	xi.bitmap_pad = BitmapPad (dpy);
82	xi.depth = depth;	261	xi.depth = 32;
83	xi.bytes_per_line = 0;	262	xi.bytes_per_line = 0;
84	xi.bits_per_pixel = 32; //Z only	263	xi.bits_per_pixel = 32; //Z only
85	xi.red_mask = 0x00000000; //Z only, unused	264	xi.red_mask = 0x00000000; //Z only, unused
86	xi.green_mask = 0x00000000; //Z only, unused	265	xi.green_mask = 0x00000000; //Z only, unused
87	xi.blue_mask = 0x00000000; //Z only, unused	266	xi.blue_mask = 0x00000000; //Z only, unused
…		…
96	rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n");	275	rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n");
97		276
98	xi.data = (char )rxvt_malloc (height xi.bytes_per_line);	277	xi.data = (char )rxvt_malloc (height xi.bytes_per_line);
99		278
100	int rowstride = gdk_pixbuf_get_rowstride (pb);	279	int rowstride = gdk_pixbuf_get_rowstride (pb);
101		280	bool pb_has_alpha = gdk_pixbuf_get_has_alpha (pb);
102	assert (3 + (depth == 32) == gdk_pixbuf_get_n_channels (pb));
103	unsigned char *row = gdk_pixbuf_get_pixels (pb);	281	unsigned char *row = gdk_pixbuf_get_pixels (pb);
		282
104	char *line = xi.data;	283	char *line = xi.data;
105		284
106	for (int y = 0; y < height; y++)	285	for (int y = 0; y < height; y++)
107	{	286	{
108	unsigned char *src = row;	287	unsigned char *src = row;
109	uint32_t dst = (uint32_t )line;	288	uint32_t dst = (uint32_t )line;
110		289
111	if (depth == 24)	290	if (!pb_has_alpha)
112	for (int x = 0; x < width; x++)	291	for (int x = 0; x < width; x++)
113	{	292	{
114	uint8_t r = *src++;	293	uint8_t r = *src++;
115	uint8_t g = *src++;	294	uint8_t g = *src++;
116	uint8_t b = *src++;	295	uint8_t b = *src++;
117		296
118	uint32_t v = (r << 16) \| (g << 8) \| b;	297	uint32_t v = (255 << 24) \| (r << 16) \| (g << 8) \| b;
119		298
120	if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch)	299	if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch)
121	v = ecb_bswap32 (v);	300	v = ecb_bswap32 (v);
122		301
123	*dst++ = v;	302	*dst++ = v;
…		…
140		319
141	row += rowstride;	320	row += rowstride;
142	line += xi.bytes_per_line;	321	line += xi.bytes_per_line;
143	}	322	}
144		323
145	rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, depth == 24 ? PictStandardRGB24 : PictStandardARGB32), 0, 0, width, height);	324	rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, PictStandardARGB32), 0, 0, width, height);
146	img->alloc ();	325	img->alloc ();
147		326
148	GC gc = XCreateGC (dpy, img->pm, 0, 0);	327	GC gc = XCreateGC (dpy, img->pm, 0, 0);
149	XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height);	328	XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height);
150	XFreeGC (dpy, gc);	329	XFreeGC (dpy, gc);
…		…
167		346
168	g_object_unref (pb);	347	g_object_unref (pb);
169		348
170	return img;	349	return img;
171	}	350	}
		351
172	# endif	352	# endif
173		353
174	void	354	void
175	rxvt_img::destroy ()	355	rxvt_img::destroy ()
176	{	356	{
…		…
194	pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth);	374	pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth);
195	ref = new pixref (w, h);	375	ref = new pixref (w, h);
196	}	376	}
197		377
198	Picture	378	Picture
199	rxvt_img::src_picture ()	379	rxvt_img::picture ()
200	{	380	{
201	Display *dpy = s->display->dpy;	381	Display *dpy = s->display->dpy;
202		382
203	XRenderPictureAttributes pa;	383	XRenderPictureAttributes pa;
204	pa.repeat = repeat;	384	pa.repeat = repeat;
…		…
223	pm = pm2;	403	pm = pm2;
224	ref = new pixref (ref->w, ref->h);	404	ref = new pixref (ref->w, ref->h);
225	}	405	}
226		406
227	void	407	void
228	rxvt_img::fill (const rxvt_color &c)	408	rxvt_img::fill (const rgba &c)
229	{	409	{
230	XGCValues gcv;	410	XRenderColor rc = { c.r, c.g, c.b, c.a };
231	gcv.foreground = c;	411
232	GC gc = XCreateGC (s->display->dpy, pm, GCForeground, &gcv);	412	Display *dpy = s->display->dpy;
233	XFillRectangle (s->display->dpy, pm, gc, 0, 0, w, h);	413	Picture src = picture ();
234	XFreeGC (s->display->dpy, gc);	414	XRenderFillRectangle (dpy, PictOpSrc, src, &rc, 0, 0, w, h);
		415	XRenderFreePicture (dpy, src);
		416	}
		417
		418	void
		419	rxvt_img::add_alpha ()
		420	{
		421	if (format->direct.alphaMask)
		422	return;
		423
		424	Display *dpy = s->display->dpy;
		425
		426	rxvt_img *img = new rxvt_img (s, find_alpha_format_for (dpy, format), x, y, w, h, repeat);
		427	img->alloc ();
		428
		429	Picture src = picture ();
		430	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
		431
		432	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
		433
		434	XRenderFreePicture (dpy, src);
		435	XRenderFreePicture (dpy, dst);
		436
		437	::swap (img->ref, ref);
		438	::swap (img->pm , pm );
		439
		440	delete img;
235	}	441	}
236		442
237	static void	443	static void
238	get_gaussian_kernel (int radius, int width, double kernel, XFixed params)	444	get_gaussian_kernel (int radius, int width, nv kernel, XFixed params)
239	{	445	{
240	double sigma = radius / 2.0;	446	nv sigma = radius / 2.0;
241	double scale = sqrt (2.0 * M_PI) * sigma;	447	nv scale = sqrt (2.0 * M_PI) * sigma;
242	double sum = 0.0;	448	nv sum = 0.0;
243		449
244	for (int i = 0; i < width; i++)	450	for (int i = 0; i < width; i++)
245	{	451	{
246	double x = i - width / 2;	452	nv x = i - width / 2;
247	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;	453	kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
248	sum += kernel[i];	454	sum += kernel[i];
249	}	455	}
250		456
251	params[0] = XDoubleToFixed (width);	457	params[0] = XDoubleToFixed (width);
…		…
261	if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV))	467	if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV))
262	return clone ();	468	return clone ();
263		469
264	Display *dpy = s->display->dpy;	470	Display *dpy = s->display->dpy;
265	int size = max (rh, rv) * 2 + 1;	471	int size = max (rh, rv) * 2 + 1;
266	double kernel = (double )malloc (size * sizeof (double));	472	nv kernel = (nv )malloc (size * sizeof (nv));
267	XFixed params = (XFixed )malloc ((size + 2) * sizeof (XFixed));	473	XFixed params = (XFixed )malloc ((size + 2) * sizeof (XFixed));
268	rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);	474	rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
269	img->alloc ();	475	img->alloc ();
270		476
271	XRenderPictureAttributes pa;	477	XRenderPictureAttributes pa;
…		…
309	w, h);	515	w, h);
310	}	516	}
311		517
312	free (kernel);	518	free (kernel);
313	free (params);	519	free (params);
		520
314	XRenderFreePicture (dpy, src);	521	XRenderFreePicture (dpy, src);
315	XRenderFreePicture (dpy, dst);	522	XRenderFreePicture (dpy, dst);
316	XRenderFreePicture (dpy, tmp);	523	XRenderFreePicture (dpy, tmp);
317		524
318	return img;	525	return img;
…		…
392	if (r < 0 \|\| g < 0 \|\| b < 0 \|\| a < 0)	599	if (r < 0 \|\| g < 0 \|\| b < 0 \|\| a < 0)
393	rxvt_fatal ("rxvt_img::contrast does not support negative values.\n");	600	rxvt_fatal ("rxvt_img::contrast does not support negative values.\n");
394		601
395	rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);	602	rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
396	img->alloc ();	603	img->alloc ();
397		604	img->fill (rgba (0, 0, 0, 0));
398	{
399	rxvt_color empty;
400	empty.set (s, rgba (0, 0, 0, 0));
401	img->fill (empty);
402	}
403		605
404	// premultiply (yeah, these are not exact, sue me or fix it)	606	// premultiply (yeah, these are not exact, sue me or fix it)
405	r = (r * (a >> 8)) >> 8;	607	r = (r * (a >> 8)) >> 8;
406	g = (g * (a >> 8)) >> 8;	608	g = (g * (a >> 8)) >> 8;
407	b = (b * (a >> 8)) >> 8;	609	b = (b * (a >> 8)) >> 8;
408		610
409	Display *dpy = s->display->dpy;	611	Display *dpy = s->display->dpy;
410		612
411	Picture src = src_picture ();	613	Picture src = picture ();
412	Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);	614	Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
413	Picture mul = create_xrender_mask (dpy, pm, True, True);	615	Picture mul = create_xrender_mask (dpy, pm, True, True);
414		616
415	//TODO: this operator does not yet implement some useful contrast	617	//TODO: this operator does not yet implement some useful contrast
416	while (r \| g \| b \| a)	618	while (r \| g \| b \| a)
…		…
433	::swap (img->pm , pm );	635	::swap (img->pm , pm );
434		636
435	delete img;	637	delete img;
436	}	638	}
437		639
		640	void
		641	rxvt_img::draw (rxvt_img *img, int op, nv mask)
		642	{
		643	unshare ();
		644
		645	Display *dpy = s->display->dpy;
		646	Picture src = img->picture ();
		647	Picture dst = picture ();
		648	Picture mask_p = 0;
		649
		650	if (mask != 1.)
		651	{
		652	mask_p = create_xrender_mask (dpy, img->pm, False, False);
		653	XRenderColor mask_c = { 0, 0, 0, float_to_component (mask) };
		654	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		655	}
		656
		657	XRenderComposite (dpy, op, src, mask_p, dst, x - img->x, y - img->y, 0, 0, 0, 0, w, h);
		658
		659	XRenderFreePicture (dpy, src);
		660	XRenderFreePicture (dpy, dst);
		661
		662	if (mask_p)
		663	XRenderFreePicture (dpy, mask_p);
		664	}
		665
438	rxvt_img *	666	rxvt_img *
439	rxvt_img::clone ()	667	rxvt_img::clone ()
440	{	668	{
441	return new rxvt_img (*this);	669	return new rxvt_img (*this);
442	}
443
444	static XRenderPictFormat *
445	find_alpha_format_for (Display dpy, XRenderPictFormat format)
446	{
447	if (format->direct.alphaMask)
448	return format; // already has alpha
449
450	// try to find a suitable alpha format, one bit alpha is enough for our purposes
451	if (format->type == PictTypeDirect)
452	for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n)
453	if (f->direct.alphaMask
454	&& f->type == PictTypeDirect
455	&& ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask )
456	&& ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask)
457	&& ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask ))
458	return f;
459
460	// should be a very good fallback
461	return XRenderFindStandardFormat (dpy, PictStandardARGB32);
462	}	670	}
463		671
464	rxvt_img *	672	rxvt_img *
465	rxvt_img::reify ()	673	rxvt_img::reify ()
466	{	674	{
…		…
475	&& repeat == RepeatNone; // and we have no good pixels to fill with	683	&& repeat == RepeatNone; // and we have no good pixels to fill with
476		684
477	rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat);	685	rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat);
478	img->alloc ();	686	img->alloc ();
479		687
480	Picture src = src_picture ();	688	Picture src = picture ();
481	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);	689	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
482		690
483	if (alpha)	691	if (alpha)
484	{	692	{
485	XRenderColor rc = { 0, 0, 0, 0 };	693	XRenderColor rc = { 0, 0, 0, 0 };
486	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles	694	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles
487	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, -x, -y, ref->w, ref->h);	695	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, x, y, ref->w, ref->h);
488	}	696	}
489	else	697	else
490	XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h);	698	XRenderComposite (dpy, PictOpSrc, src, None, dst, -x, -y, 0, 0, 0, 0, w, h);
491		699
492	XRenderFreePicture (dpy, src);	700	XRenderFreePicture (dpy, src);
493	XRenderFreePicture (dpy, dst);	701	XRenderFreePicture (dpy, dst);
494		702
495	return img;	703	return img;
…		…
498	rxvt_img *	706	rxvt_img *
499	rxvt_img::sub_rect (int x, int y, int width, int height)	707	rxvt_img::sub_rect (int x, int y, int width, int height)
500	{	708	{
501	rxvt_img *img = clone ();	709	rxvt_img *img = clone ();
502		710
503	img->x += x;	711	img->x -= x;
504	img->y += y;	712	img->y -= y;
505		713
506	if (w != width \|\| h != height)	714	if (w != width \|\| h != height)
507	{	715	{
508	img->w = width;	716	img->w = width;
509	img->h = height;	717	img->h = height;
…		…
515		723
516	return img;	724	return img;
517	}	725	}
518		726
519	rxvt_img *	727	rxvt_img *
520	rxvt_img::transform (int new_width, int new_height, double matrix[9])	728	rxvt_img::transform (const nv matrix[3][3])
521	{	729	{
		730	return transform (mat3x3 (&matrix[0][0]));
		731	}
		732
		733	rxvt_img *
		734	rxvt_img::transform (const nv *matrix)
		735	{
		736	mat3x3 m (matrix);
		737
		738	// calculate new pixel bounding box coordinates
		739	nv r[2], rmin[2], rmax[2];
		740
		741	for (int i = 0; i < 2; ++i)
		742	{
		743	nv v;
		744
		745	v = m.apply1 (i, 0+x, 0+y); rmin [i] = rmax [i] = v; r [i] = v;
		746	v = m.apply1 (i, w+x, 0+y); min_it (rmin [i], v); max_it (rmax [i], v);
		747	v = m.apply1 (i, 0+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v);
		748	v = m.apply1 (i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v);
		749	}
		750
		751	float sx = rmin [0] - x;
		752	float sy = rmin [1] - y;
		753
		754	// TODO: adjust matrix for subpixel accuracy
		755	int nx = floor (rmin [0]);
		756	int ny = floor (rmin [1]);
		757
		758	int new_width = ceil (rmax [0] - rmin [0]);
		759	int new_height = ceil (rmax [1] - rmin [1]);
		760
		761	m = mat3x3::translate (-x, -y) * m * mat3x3::translate (x, y);
		762
		763	mat3x3 inv = m.invert ();
		764
522	rxvt_img *img = new rxvt_img (s, format, 0, 0, new_width, new_height, repeat);	765	rxvt_img *img = new rxvt_img (s, format, nx, ny, new_width, new_height, repeat);
523	img->alloc ();	766	img->alloc ();
524		767
525	Display *dpy = s->display->dpy;	768	Display *dpy = s->display->dpy;
526	Picture src = src_picture ();	769	Picture src = picture ();
527	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);	770	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
528		771
529	XTransform xfrm;	772	XTransform xfrm;
530		773
531	for (int i = 0; i < 3; ++i)	774	for (int i = 0; i < 3; ++i)
532	for (int j = 0; j < 3; ++j)	775	for (int j = 0; j < 3; ++j)
533	xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);	776	xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]);
534
535	xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO
536	xfrm.matrix [1][2] -= XDoubleToFixed (y);
537		777
538	XRenderSetPictureFilter (dpy, src, "good", 0, 0);	778	XRenderSetPictureFilter (dpy, src, "good", 0, 0);
539	XRenderSetPictureTransform (dpy, src, &xfrm);	779	XRenderSetPictureTransform (dpy, src, &xfrm);
540	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height);	780	XRenderComposite (dpy, PictOpSrc, src, None, dst, sx, sy, 0, 0, 0, 0, new_width, new_height);
541		781
542	XRenderFreePicture (dpy, src);	782	XRenderFreePicture (dpy, src);
543	XRenderFreePicture (dpy, dst);	783	XRenderFreePicture (dpy, dst);
544		784
545	return img;	785	return img;
…		…
549	rxvt_img::scale (int new_width, int new_height)	789	rxvt_img::scale (int new_width, int new_height)
550	{	790	{
551	if (w == new_width && h == new_height)	791	if (w == new_width && h == new_height)
552	return clone ();	792	return clone ();
553		793
554	double matrix[9] = {
555	w / (double)new_width, 0, 0,
556	0, h / (double)new_height, 0,
557	0, 0, 1
558	};
559
560	int old_repeat_mode = repeat;	794	int old_repeat_mode = repeat;
561	repeat = RepeatPad; // not right, but xrender can't proeprly scale it seems	795	repeat = RepeatPad; // not right, but xrender can't properly scale it seems
562		796
563	rxvt_img *img = transform (new_width, new_height, matrix);	797	rxvt_img *img = transform (mat3x3::scale (new_width / (nv)w, new_height / (nv)h));
564		798
565	repeat = old_repeat_mode;	799	repeat = old_repeat_mode;
566	img->repeat = repeat;	800	img->repeat = repeat;
567		801
568	return img;	802	return img;
569	}	803	}
570		804
571	rxvt_img *	805	rxvt_img *
572	rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi)	806	rxvt_img::rotate (int cx, int cy, nv phi)
573	{	807	{
574	double s = sin (phi);	808	#if 0
575	double c = cos (phi);
576
577	double matrix[9] = {
578	c, -s, -c * x + s * y + x,	809	{ c, -s, cx - c * cx + s * cy },
579	s, c, -s * x - c * y + y,	810	{ s, c, cy - s * cx - c * cy },
580	0, 0, 1	811	{ 0, 0, 1 }
581	};	812	#endif
582		813
583	return transform (new_width, new_height, matrix);	814	move (-cx, -cy);
584	}	815	rxvt_img *img = transform (mat3x3::rotate (phi));
		816	move ( cx, cy);
		817	img->move (cx, cy);
585		818
		819	return img;
		820	}
		821
586	rxvt_img *	822	rxvt_img *
587	rxvt_img::convert_format (XRenderPictFormat *new_format, const rxvt_color &bg)	823	rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg)
588	{	824	{
589	if (new_format == format)	825	if (new_format == format)
590	return clone ();	826	return clone ();
591		827
592	rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat);	828	rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat);
593	img->alloc ();	829	img->alloc ();
594		830
595	Display *dpy = s->display->dpy;	831	Display *dpy = s->display->dpy;
596	Picture src = src_picture ();	832	Picture src = picture ();
597	Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);	833	Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);
598	int op = PictOpSrc;	834	int op = PictOpSrc;
599		835
600	if (format->direct.alphaMask && !new_format->direct.alphaMask)	836	if (format->direct.alphaMask && !new_format->direct.alphaMask)
601	{	837	{
602	// does it have to be that complicated	838	// does it have to be that complicated
603	rgba c;
604	bg.get (c);
605
606	XRenderColor rc = { c.r, c.g, c.b, 0xffff };	839	XRenderColor rc = { bg.r, bg.g, bg.b, bg.a };
607	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);	840	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);
608		841
609	op = PictOpOver;	842	op = PictOpOver;
610	}	843	}
611		844
…		…
616		849
617	return img;	850	return img;
618	}	851	}
619		852
620	rxvt_img *	853	rxvt_img *
621	rxvt_img::blend (rxvt_img *img, double factor)	854	rxvt_img::blend (rxvt_img *img, nv factor)
622	{	855	{
623	rxvt_img *img2 = clone ();	856	rxvt_img *img2 = clone ();
624	Display *dpy = s->display->dpy;	857	Display *dpy = s->display->dpy;
625	Picture src = img->src_picture ();	858	Picture src = img->picture ();
626	Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0);	859	Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0);
627	Picture mask = create_xrender_mask (dpy, img->pm, False, False);	860	Picture mask = create_xrender_mask (dpy, img->pm, False, False);
628		861
629	XRenderColor mask_c;	862	XRenderColor mask_c;
630		863

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Comparing rxvt-unicode/src/rxvtimg.C (file contents): Revision 1.75 by sf-exg, Sun Jun 10 07:51:45 2012 UTC vs. Revision 1.95 by root, Fri Jun 15 18:36:26 2012 UTC

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Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.75 by sf-exg, Sun Jun 10 07:51:45 2012 UTC vs.
Revision 1.95 by root, Fri Jun 15 18:36:26 2012 UTC