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

Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.20 by root, Tue Jun 5 14:07:47 2012 UTC vs.
Revision 1.76 by root, Sun Jun 10 10:29:26 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
		69	int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
		70
		71	XImage xi;
		72
		73	xi.width = width;
		74	xi.height = height;
		75	xi.xoffset = 0;
		76	xi.format = ZPixmap;
		77	xi.byte_order = ImageByteOrder (dpy);
		78	xi.bitmap_unit = 0; //XY only, unused
		79	xi.bitmap_bit_order = 0; //XY only, unused
		80	xi.bitmap_pad = BitmapPad (dpy);
		81	xi.depth = 32;
		82	xi.bytes_per_line = 0;
		83	xi.bits_per_pixel = 32; //Z only
		84	xi.red_mask = 0x00000000; //Z only, unused
		85	xi.green_mask = 0x00000000; //Z only, unused
		86	xi.blue_mask = 0x00000000; //Z only, unused
		87	xi.obdata = 0; // probably unused
		88
		89	bool byte_order_mismatch = byte_order != xi.byte_order;
		90
		91	if (!XInitImage (&xi))
		92	rxvt_fatal ("unable to initialise ximage, please report.\n");
		93
		94	if (height > INT_MAX / xi.bytes_per_line)
		95	rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n");
		96
		97	xi.data = (char )rxvt_malloc (height xi.bytes_per_line);
		98
		99	int rowstride = gdk_pixbuf_get_rowstride (pb);
		100	bool pb_has_alpha = gdk_pixbuf_get_has_alpha (pb);
		101	unsigned char *row = gdk_pixbuf_get_pixels (pb);
		102
		103	char *line = xi.data;
		104
		105	for (int y = 0; y < height; y++)
		106	{
		107	unsigned char *src = row;
		108	uint32_t dst = (uint32_t )line;
		109
		110	if (!pb_has_alpha)
		111	for (int x = 0; x < width; x++)
		112	{
		113	uint8_t r = *src++;
		114	uint8_t g = *src++;
		115	uint8_t b = *src++;
		116
		117	uint32_t v = (255 << 24) \| (r << 16) \| (g << 8) \| b;
		118
		119	if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch)
		120	v = ecb_bswap32 (v);
		121
		122	*dst++ = v;
		123	}
		124	else
		125	for (int x = 0; x < width; x++)
		126	{
		127	uint32_t v = (uint32_t )src; src += 4;
		128
		129	if (ecb_big_endian ())
		130	v = ecb_bswap32 (v);
		131
		132	v = ecb_rotl32 (v, 8); // abgr to bgra
		133
		134	if (!byte_order_mismatch)
		135	v = ecb_bswap32 (v);
		136
		137	*dst++ = v;
		138	}
		139
		140	row += rowstride;
		141	line += xi.bytes_per_line;
		142	}
		143
		144	rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, PictStandardARGB32), 0, 0, width, height);
		145	img->alloc ();
		146
		147	GC gc = XCreateGC (dpy, img->pm, 0, 0);
		148	XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height);
		149	XFreeGC (dpy, gc);
		150
		151	free (xi.data);
		152
		153	return img;
18	}	154	}
19		155
20	rxvt_img *	156	rxvt_img *
21	rxvt_img::new_from_file (rxvt_screen s, const char filename)	157	rxvt_img::new_from_file (rxvt_screen s, const char filename)
22	{	158	{
…		…
24	GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err);	160	GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err);
25		161
26	if (!pb)	162	if (!pb)
27	rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message);	163	rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message);
28		164
29	rxvt_img *img = new rxvt_img (	165	rxvt_img *img = new_from_pixbuf (s, pb);
30	s,
31	XRenderFindStandardFormat (s->display->dpy, gdk_pixbuf_get_has_alpha (pb) ? PictStandardARGB32 : PictStandardRGB24),
32	gdk_pixbuf_get_width (pb),
33	gdk_pixbuf_get_height (pb)
34	);
35		166
36	img->render_pixbuf (pb, 0, 0, img->w, img->h, 0, 0);	167	g_object_unref (pb);
37		168
		169	return img;
		170	}
		171	# endif
		172
		173	void
		174	rxvt_img::destroy ()
		175	{
		176	if (--ref->cnt)
38	return img;	177	return;
		178
		179	if (pm && ref->ours)
		180	XFreePixmap (s->display->dpy, pm);
		181
		182	delete ref;
39	}	183	}
40		184
41	rxvt_img::~rxvt_img ()	185	rxvt_img::~rxvt_img ()
42	{	186	{
43	if (!shared)	187	destroy ();
44	XFreePixmap (s->display->dpy, pm);	188	}
		189
		190	void
		191	rxvt_img::alloc ()
		192	{
		193	pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth);
		194	ref = new pixref (w, h);
		195	}
		196
		197	Picture
		198	rxvt_img::src_picture ()
		199	{
		200	Display *dpy = s->display->dpy;
		201
		202	XRenderPictureAttributes pa;
		203	pa.repeat = repeat;
		204	Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
		205
		206	return pic;
45	}	207	}
46		208
47	void	209	void
48	rxvt_img::unshare ()	210	rxvt_img::unshare ()
49	{	211	{
50	if (!shared)	212	if (ref->cnt == 1 && ref->ours)
51	return;	213	return;
52		214
53	rxvt_img *img = clone ();	215	Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth);
		216	GC gc = XCreateGC (s->display->dpy, pm, 0, 0);
		217	XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0);
		218	XFreeGC (s->display->dpy, gc);
54		219
55	::swap (pm , img->pm);	220	destroy ();
56	::swap (shared, img->shared);
57		221
58	delete img;	222	pm = pm2;
		223	ref = new pixref (ref->w, ref->h);
59	}	224	}
60		225
61	void	226	void
62	rxvt_img::fill (const rxvt_color &c)	227	rxvt_img::fill (const rxvt_color &c)
63	{	228	{
…		…
87		252
88	for (int i = 0; i < width; i++)	253	for (int i = 0; i < width; i++)
89	params[i+2] = XDoubleToFixed (kernel[i] / sum);	254	params[i+2] = XDoubleToFixed (kernel[i] / sum);
90	}	255	}
91		256
92	void	257	rxvt_img *
93	rxvt_img::blur (int rh, int rv)	258	rxvt_img::blur (int rh, int rv)
94	{	259	{
95	if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV))	260	if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV))
96	return;	261	return clone ();
97		262
98	Display *dpy = s->display->dpy;	263	Display *dpy = s->display->dpy;
99	int size = max (rh, rv) * 2 + 1;	264	int size = max (rh, rv) * 2 + 1;
100	double kernel = (double )malloc (size * sizeof (double));	265	double kernel = (double )malloc (size * sizeof (double));
101	XFixed params = (XFixed )malloc ((size + 2) * sizeof (XFixed));	266	XFixed params = (XFixed )malloc ((size + 2) * sizeof (XFixed));
		267	rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
		268	img->alloc ();
102		269
103	XRenderPictureAttributes pa;	270	XRenderPictureAttributes pa;
104
105	pa.repeat = RepeatPad;	271	pa.repeat = RepeatPad;
106	Picture src = XRenderCreatePicture (dpy, pm , format, CPRepeat, &pa);	272	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
		273	Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
		274
107	Pixmap tmp = XCreatePixmap (dpy, pm, w, h, format->depth);	275	Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth);
108	Picture dst = XRenderCreatePicture (dpy, tmp, format, CPRepeat, &pa);	276	Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa);
109	XFreePixmap (dpy, tmp);	277	XFreePixmap (dpy, tmp_pm);
110		278
111	if (kernel && params)	279	if (kernel && params)
112	{	280	{
113	size = rh * 2 + 1;	281	size = rh * 2 + 1;
114	get_gaussian_kernel (rh, size, kernel, params);	282	get_gaussian_kernel (rh, size, kernel, params);
115		283
116	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);	284	XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2);
117	XRenderComposite (dpy,	285	XRenderComposite (dpy,
118	PictOpSrc,	286	PictOpSrc,
119	src,	287	src,
		288	None,
		289	tmp,
		290	0, 0,
		291	0, 0,
		292	0, 0,
		293	w, h);
		294
		295	size = rv * 2 + 1;
		296	get_gaussian_kernel (rv, size, kernel, params);
		297	::swap (params[0], params[1]);
		298
		299	XRenderSetPictureFilter (dpy, tmp, FilterConvolution, params, size+2);
		300	XRenderComposite (dpy,
		301	PictOpSrc,
		302	tmp,
120	None,	303	None,
121	dst,	304	dst,
122	0, 0,	305	0, 0,
123	0, 0,	306	0, 0,
124	0, 0,	307	0, 0,
125	w, h);	308	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	}	309	}
144		310
145	free (kernel);	311	free (kernel);
146	free (params);	312	free (params);
147	XRenderFreePicture (dpy, src);	313	XRenderFreePicture (dpy, src);
148	XRenderFreePicture (dpy, dst);	314	XRenderFreePicture (dpy, dst);
		315	XRenderFreePicture (dpy, tmp);
		316
		317	return img;
149	}	318	}
150		319
151	static Picture	320	static Picture
152	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb)	321	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha)
153	{	322	{
154	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);	323	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);
155		324
156	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);	325	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);
157	XRenderPictureAttributes pa;	326	XRenderPictureAttributes pa;
158	pa.repeat = True;	327	pa.repeat = RepeatNormal;
		328	pa.component_alpha = component_alpha;
159	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);	329	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat \| CPComponentAlpha, &pa);
160		330
161	XFreePixmap (dpy, pixmap);	331	XFreePixmap (dpy, pixmap);
162		332
163	return mask;	333	return mask;
164	}	334	}
165		335
		336	static void
		337	extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc)
		338	{
		339	int32_t x = clamp (c, cl0, cl1);
		340	c -= x;
		341	xc = x;
		342	}
		343
		344	static bool
		345	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)
		346	{
		347	extract (cl0, cl1, r, xr);
		348	extract (cl0, cl1, g, xg);
		349	extract (cl0, cl1, b, xb);
		350	extract (cl0, cl1, a, xa);
		351
		352	return xr \| xg \| xb \| xa;
		353	}
		354
166	void	355	void
167	rxvt_img::brightness (double r, double g, double b, double a)	356	rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a)
168	{	357	{
		358	unshare ();
		359
169	Display *dpy = s->display->dpy;	360	Display *dpy = s->display->dpy;
170	Picture src = create_xrender_mask (dpy, pm, True);
171	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);	361	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
172		362
		363	// loop should not be needed for brightness, as only -1..1 makes sense
		364	//while (r \| g \| b \| a)
		365	{
		366	unsigned short xr, xg, xb, xa;
173	XRenderColor mask_c;	367	XRenderColor mask_c;
174	mask_c.red = float_to_component (r);	368
175	mask_c.green = float_to_component (g);	369	if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
176	mask_c.blue = float_to_component (b);
177	mask_c.alpha = float_to_component (a);
178	XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1);	370	XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
179		371
180	XRenderComposite (dpy, PictOpAdd, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	372	if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
		373	{
		374	XRenderColor mask_w = { 65535, 65535, 65535, 65535 };
		375	XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
		376	mask_c.red = -mask_c.red; //TODO: verify that doing clamp, assign, and negation does the right thing
		377	mask_c.green = -mask_c.green;
		378	mask_c.blue = -mask_c.blue;
		379	mask_c.alpha = -mask_c.alpha;
		380	XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
		381	XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
		382	}
		383	}
		384
		385	XRenderFreePicture (dpy, dst);
181	}	386	}
182		387
183	void	388	void
184	rxvt_img::contrast (double r, double g, double b, double a)	389	rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a)
185	{	390	{
186	if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL))	391	if (r < 0 \|\| g < 0 \|\| b < 0 \|\| a < 0)
187	return;	392	rxvt_fatal ("rxvt_img::contrast does not support negative values.\n");
188		393
		394	rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
		395	img->alloc ();
		396
		397	{
		398	rxvt_color empty;
		399	empty.set (s, rgba (0, 0, 0, 0));
		400	img->fill (empty);
		401	}
		402
		403	// premultiply (yeah, these are not exact, sue me or fix it)
		404	r = (r * (a >> 8)) >> 8;
		405	g = (g * (a >> 8)) >> 8;
		406	b = (b * (a >> 8)) >> 8;
		407
189	Display *dpy = s->display->dpy;	408	Display *dpy = s->display->dpy;
190	Picture src = create_xrender_mask (dpy, pm, True);	409
		410	Picture src = src_picture ();
191	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);	411	Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
		412	Picture mul = create_xrender_mask (dpy, pm, True, True);
192		413
		414	//TODO: this operator does not yet implement some useful contrast
		415	while (r \| g \| b \| a)
		416	{
		417	unsigned short xr, xg, xb, xa;
193	XRenderColor mask_c;	418	XRenderColor mask_c;
194	mask_c.red = float_to_component (r);
195	mask_c.green = float_to_component (g);
196	mask_c.blue = float_to_component (b);
197	mask_c.alpha = float_to_component (a);
198	XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1);
199		419
200	XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	420	if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
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	Display *dpy = s->display->dpy;
207
208	if (s->visual->c_class != TrueColor)
209	return false;
210
211	uint32_t red_mask, green_mask, blue_mask, alpha_mask;
212
213	red_mask = (uint32_t)format->direct.redMask << format->direct.red;
214	green_mask = (uint32_t)format->direct.greenMask << format->direct.green;
215	blue_mask = (uint32_t)format->direct.blueMask << format->direct.blue;
216	alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;
217
218	int width_r = ecb_popcount32 (red_mask);
219	int width_g = ecb_popcount32 (green_mask);
220	int width_b = ecb_popcount32 (blue_mask);
221	int width_a = ecb_popcount32 (alpha_mask);
222
223	if (width_r > 8 \|\| width_g > 8 \|\| width_b > 8 \|\| width_a > 8)
224	return false;
225
226	int sh_r = ecb_ctz32 (red_mask);
227	int sh_g = ecb_ctz32 (green_mask);
228	int sh_b = ecb_ctz32 (blue_mask);
229	int sh_a = ecb_ctz32 (alpha_mask);
230
231	if (width > 32767 \|\| height > 32767)
232	return false;
233
234	XImage *ximage = XCreateImage (dpy, s->visual, format->depth, ZPixmap, 0, 0,
235	width, height, 32, 0);
236	if (!ximage)
237	return false;
238
239	if (height > INT_MAX / ximage->bytes_per_line
240	\|\| !(ximage->data = (char )malloc (height ximage->bytes_per_line)))
241	{
242	XDestroyImage (ximage);
243	return false;
244	}
245
246	GC gc = XCreateGC (dpy, pm, 0, 0);
247
248	ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
249
250	int rowstride = gdk_pixbuf_get_rowstride (pixbuf);
251	int channels = gdk_pixbuf_get_n_channels (pixbuf);
252	unsigned char row = gdk_pixbuf_get_pixels (pixbuf) + src_y rowstride + src_x * channels;
253	char *line = ximage->data;
254
255	rgba c (0, 0, 0);
256
257	if (channels == 4 && alpha_mask == 0)
258	{
259	//pix_colors[Color_bg].get (c);
260	//TODO
261	c.r = 0xffff; c.g = 0xc0c0; c.b = 0xcbcb;//D
262	c.r >>= 8;
263	c.g >>= 8;
264	c.b >>= 8;
265	}
266
267	for (int y = 0; y < height; y++)
268	{
269	for (int x = 0; x < width; x++)
270	{	421	{
271	unsigned char pixel = row + x channels;	422	XRenderFillRectangle (dpy, PictOpSrc, mul, &mask_c, 0, 0, 1, 1);
272	uint32_t value;	423	XRenderComposite (dpy, PictOpAdd, src, mul, dst, 0, 0, 0, 0, 0, 0, w, h);
273	unsigned char r, g, b, a;
274
275	if (channels == 4)
276	{
277	a = pixel[3];
278	r = (pixel[0] * a + c.r * (0xff - a)) / 0xff;
279	g = (pixel[1] * a + c.g * (0xff - a)) / 0xff;
280	b = (pixel[2] * a + c.b * (0xff - a)) / 0xff;
281	}
282	else
283	{
284	a = 0xff;
285	r = pixel[0];
286	g = pixel[1];
287	b = pixel[2];
288	}
289
290	value = ((r >> (8 - width_r)) << sh_r)
291	\| ((g >> (8 - width_g)) << sh_g)
292	\| ((b >> (8 - width_b)) << sh_b)
293	\| ((a >> (8 - width_a)) << sh_a);
294
295	if (ximage->bits_per_pixel == 32)
296	((uint32_t *)line)[x] = value;
297	else
298	XPutPixel (ximage, x, y, value);
299	}	424	}
300
301	row += rowstride;
302	line += ximage->bytes_per_line;
303	}	425	}
304		426
305	XPutImage (dpy, pm, gc, ximage, 0, 0, dst_x, dst_y, width, height);	427	XRenderFreePicture (dpy, mul);
306	XDestroyImage (ximage);	428	XRenderFreePicture (dpy, dst);
307	XFreeGC (dpy, gc);	429	XRenderFreePicture (dpy, src);
308		430
309	return true;	431	::swap (img->ref, ref);
		432	::swap (img->pm , pm );
		433
		434	delete img;
310	}	435	}
311		436
312	rxvt_img *	437	rxvt_img *
313	rxvt_img::clone ()	438	rxvt_img::clone ()
314	{	439	{
315	rxvt_img *img = new rxvt_img (s, format, w, h);	440	return new rxvt_img (*this);
316
317	GC gc = XCreateGC (s->display->dpy, pm, 0, 0);
318	XCopyArea (s->display->dpy, pm, img->pm, gc, 0, 0, w, h, 0, 0);
319	XFreeGC (s->display->dpy, gc);
320
321	return img;
322	}	441	}
323		442
324	rxvt_img *	443	static XRenderPictFormat *
325	rxvt_img::sub_rect (int x, int y, int width, int height, int repeat)	444	find_alpha_format_for (Display dpy, XRenderPictFormat format)
326	{	445	{
327	rxvt_img *img = new rxvt_img (s, format, width, height);	446	if (format->direct.alphaMask)
		447	return format; // already has alpha
328		448
		449	// try to find a suitable alpha format, one bit alpha is enough for our purposes
		450	if (format->type == PictTypeDirect)
		451	for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n)
		452	if (f->direct.alphaMask
		453	&& f->type == PictTypeDirect
		454	&& ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask )
		455	&& ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask)
		456	&& ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask ))
		457	return f;
		458
		459	// should be a very good fallback
		460	return XRenderFindStandardFormat (dpy, PictStandardARGB32);
		461	}
		462
		463	rxvt_img *
		464	rxvt_img::reify ()
		465	{
		466	if (x == 0 && y == 0 && w == ref->w && h == ref->h)
		467	return clone ();
		468
329	Display *dpy = s->display->dpy;	469	Display *dpy = s->display->dpy;
330	XRenderPictureAttributes pa;	470
331	pa.repeat = repeat;	471	// add an alpha channel if...
332	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);	472	bool alpha = !format->direct.alphaMask // pixmap has none yet
		473	&& (x \|\| y) // we need one because of non-zero offset
		474	&& repeat == RepeatNone; // and we have no good pixels to fill with
		475
		476	rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat);
		477	img->alloc ();
		478
		479	Picture src = src_picture ();
333	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);	480	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
334		481
		482	if (alpha)
		483	{
		484	XRenderColor rc = { 0, 0, 0, 0 };
		485	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles
		486	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, -x, -y, ref->w, ref->h);
		487	}
		488	else
335	XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, width, height);	489	XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h);
336		490
337	XRenderFreePicture (dpy, src);	491	XRenderFreePicture (dpy, src);
338	XRenderFreePicture (dpy, dst);	492	XRenderFreePicture (dpy, dst);
339		493
340	return img;	494	return img;
341	}	495	}
342		496
343	rxvt_img *	497	rxvt_img *
		498	rxvt_img::sub_rect (int x, int y, int width, int height)
		499	{
		500	rxvt_img *img = clone ();
		501
		502	img->x += x;
		503	img->y += y;
		504
		505	if (w != width \|\| h != height)
		506	{
		507	img->w = width;
		508	img->h = height;
		509
		510	rxvt_img *img2 = img->reify ();
		511	delete img;
		512	img = img2;
		513	}
		514
		515	return img;
		516	}
		517
		518	rxvt_img *
344	rxvt_img::transform (int new_width, int new_height, double matrix[9], int repeat)	519	rxvt_img::transform (int new_width, int new_height, double matrix[9])
345	{	520	{
346	rxvt_img *img = new rxvt_img (s, format, new_width, new_height);	521	rxvt_img *img = new rxvt_img (s, format, 0, 0, new_width, new_height, repeat);
		522	img->alloc ();
347		523
348	Display *dpy = s->display->dpy;	524	Display *dpy = s->display->dpy;
349	XRenderPictureAttributes pa;	525	Picture src = src_picture ();
350	pa.repeat = repeat;
351	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
352	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);	526	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
353		527
354	XTransform xfrm;	528	XTransform xfrm;
355		529
356	for (int i = 0; i < 3; ++i)	530	for (int i = 0; i < 3; ++i)
357	for (int j = 0; j < 3; ++j)	531	for (int j = 0; j < 3; ++j)
358	xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);	532	xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);
359		533
		534	xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO
		535	xfrm.matrix [1][2] -= XDoubleToFixed (y);
		536
360	XRenderSetPictureFilter (dpy, src, "good", 0, 0);	537	XRenderSetPictureFilter (dpy, src, "good", 0, 0);
361	XRenderSetPictureTransform (dpy, src, &xfrm);	538	XRenderSetPictureTransform (dpy, src, &xfrm);
362	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height);	539	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height);
363		540
364	XRenderFreePicture (dpy, src);	541	XRenderFreePicture (dpy, src);
…		…
368	}	545	}
369		546
370	rxvt_img *	547	rxvt_img *
371	rxvt_img::scale (int new_width, int new_height)	548	rxvt_img::scale (int new_width, int new_height)
372	{	549	{
		550	if (w == new_width && h == new_height)
		551	return clone ();
		552
373	double matrix[9] = {	553	double matrix[9] = {
374	w / (double)new_width, 0, 0,	554	w / (double)new_width, 0, 0,
375	0, h / (double)new_height, 0,	555	0, h / (double)new_height, 0,
376	0, 0, 1	556	0, 0, 1
377	};	557	};
378		558
		559	int old_repeat_mode = repeat;
		560	repeat = RepeatPad; // not right, but xrender can't proeprly scale it seems
		561
379	return transform (new_width, new_height, matrix);	562	rxvt_img *img = transform (new_width, new_height, matrix);
380	}
381		563
		564	repeat = old_repeat_mode;
		565	img->repeat = repeat;
		566
		567	return img;
		568	}
		569
382	rxvt_img *	570	rxvt_img *
383	rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi, int repeat)	571	rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi)
384	{	572	{
385	double s = sin (phi);	573	double s = sin (phi);
386	double c = cos (phi);	574	double c = cos (phi);
387		575
388	double matrix[9] = {	576	double matrix[9] = {
389	c, -s, -c * x + s * y + x,	577	c, -s, -c * x + s * y + x,
390	s, c, -s * x - c * y + y,	578	s, c, -s * x - c * y + y,
391	0, 0, 1	579	0, 0, 1
392	};	580	};
393		581
394	return transform (new_width, new_height, matrix, repeat);	582	return transform (new_width, new_height, matrix);
395	}	583	}
396		584
397	rxvt_img *	585	rxvt_img *
398	rxvt_img::convert_to (XRenderPictFormat *new_format)	586	rxvt_img::convert_format (XRenderPictFormat *new_format, const rxvt_color &bg)
399	{	587	{
		588	if (new_format == format)
		589	return clone ();
		590
400	rxvt_img *img = new rxvt_img (s, new_format, w, h);	591	rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat);
		592	img->alloc ();
401		593
402	Display *dpy = s->display->dpy;	594	Display *dpy = s->display->dpy;
403	Picture src = XRenderCreatePicture (dpy, pm, format, 0, 0);	595	Picture src = src_picture ();
404	Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);	596	Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);
		597	int op = PictOpSrc;
405		598
		599	if (format->direct.alphaMask && !new_format->direct.alphaMask)
		600	{
		601	// does it have to be that complicated
		602	rgba c;
		603	bg.get (c);
		604
		605	XRenderColor rc = { c.r, c.g, c.b, 0xffff };
		606	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);
		607
		608	op = PictOpOver;
		609	}
		610
406	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	611	XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
407		612
408	XRenderFreePicture (dpy, src);	613	XRenderFreePicture (dpy, src);
409	XRenderFreePicture (dpy, dst);	614	XRenderFreePicture (dpy, dst);
410		615
411	return img;	616	return img;
412	}	617	}
413		618
		619	rxvt_img *
		620	rxvt_img::blend (rxvt_img *img, double factor)
		621	{
		622	rxvt_img *img2 = clone ();
		623	Display *dpy = s->display->dpy;
		624	Picture src = img->src_picture ();
		625	Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0);
		626	Picture mask = create_xrender_mask (dpy, img->pm, False, False);
		627
		628	XRenderColor mask_c;
		629
		630	mask_c.alpha = float_to_component (factor);
		631	mask_c.red =
		632	mask_c.green =
		633	mask_c.blue = 0;
		634	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		635
		636	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h);
		637
		638	XRenderFreePicture (dpy, src);
		639	XRenderFreePicture (dpy, dst);
		640	XRenderFreePicture (dpy, mask);
		641
		642	return img2;
		643	}
		644
414	#endif	645	#endif
415		646

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Comparing rxvt-unicode/src/rxvtimg.C (file contents): Revision 1.20 by root, Tue Jun 5 14:07:47 2012 UTC vs. Revision 1.76 by root, Sun Jun 10 10:29:26 2012 UTC

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Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.20 by root, Tue Jun 5 14:07:47 2012 UTC vs.
Revision 1.76 by root, Sun Jun 10 10:29:26 2012 UTC