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

Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.19 by root, Tue Jun 5 13:39:26 2012 UTC vs.
Revision 1.75 by sf-exg, Sun Jun 10 07:51:45 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);
		316	XRenderFreePicture (dpy, tmp);
		317
		318	return img;
149	}	319	}
150		320
151	static Picture	321	static Picture
152	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb)	322	create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha)
153	{	323	{
154	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);	324	Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8);
155		325
156	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);	326	XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8);
157	XRenderPictureAttributes pa;	327	XRenderPictureAttributes pa;
158	pa.repeat = True;	328	pa.repeat = RepeatNormal;
		329	pa.component_alpha = component_alpha;
159	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);	330	Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat \| CPComponentAlpha, &pa);
160		331
161	XFreePixmap (dpy, pixmap);	332	XFreePixmap (dpy, pixmap);
162		333
163	return mask;	334	return mask;
164	}	335	}
165		336
		337	static void
		338	extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc)
		339	{
		340	int32_t x = clamp (c, cl0, cl1);
		341	c -= x;
		342	xc = x;
		343	}
		344
		345	static bool
		346	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)
		347	{
		348	extract (cl0, cl1, r, xr);
		349	extract (cl0, cl1, g, xg);
		350	extract (cl0, cl1, b, xb);
		351	extract (cl0, cl1, a, xa);
		352
		353	return xr \| xg \| xb \| xa;
		354	}
		355
166	void	356	void
167	rxvt_img::brightness (double r, double g, double b, double a)	357	rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a)
168	{	358	{
		359	unshare ();
		360
169	Display *dpy = s->display->dpy;	361	Display *dpy = s->display->dpy;
170	Picture src = create_xrender_mask (dpy, pm, True);
171	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);	362	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
172		363
		364	// loop should not be needed for brightness, as only -1..1 makes sense
		365	//while (r \| g \| b \| a)
		366	{
		367	unsigned short xr, xg, xb, xa;
173	XRenderColor mask_c;	368	XRenderColor mask_c;
174	mask_c.red = float_to_component (r);	369
175	mask_c.green = float_to_component (g);	370	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);	371	XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
179		372
180	XRenderComposite (dpy, PictOpAdd, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	373	if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
		374	{
		375	XRenderColor mask_w = { 65535, 65535, 65535, 65535 };
		376	XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
		377	mask_c.red = -mask_c.red; //TODO: verify that doing clamp, assign, and negation does the right thing
		378	mask_c.green = -mask_c.green;
		379	mask_c.blue = -mask_c.blue;
		380	mask_c.alpha = -mask_c.alpha;
		381	XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
		382	XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
		383	}
		384	}
		385
		386	XRenderFreePicture (dpy, dst);
181	}	387	}
182		388
183	void	389	void
184	rxvt_img::contrast (double r, double g, double b, double a)	390	rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a)
185	{	391	{
186	if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL))	392	if (r < 0 \|\| g < 0 \|\| b < 0 \|\| a < 0)
187	return;	393	rxvt_fatal ("rxvt_img::contrast does not support negative values.\n");
188		394
		395	rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
		396	img->alloc ();
		397
		398	{
		399	rxvt_color empty;
		400	empty.set (s, rgba (0, 0, 0, 0));
		401	img->fill (empty);
		402	}
		403
		404	// premultiply (yeah, these are not exact, sue me or fix it)
		405	r = (r * (a >> 8)) >> 8;
		406	g = (g * (a >> 8)) >> 8;
		407	b = (b * (a >> 8)) >> 8;
		408
189	Display *dpy = s->display->dpy;	409	Display *dpy = s->display->dpy;
190	Picture src = create_xrender_mask (dpy, pm, True);	410
		411	Picture src = src_picture ();
191	Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);	412	Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
		413	Picture mul = create_xrender_mask (dpy, pm, True, True);
192		414
		415	//TODO: this operator does not yet implement some useful contrast
		416	while (r \| g \| b \| a)
		417	{
		418	unsigned short xr, xg, xb, xa;
193	XRenderColor mask_c;	419	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		420
200	XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	421	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	{	422	{
271	unsigned char pixel = row + x channels;	423	XRenderFillRectangle (dpy, PictOpSrc, mul, &mask_c, 0, 0, 1, 1);
272	uint32_t value;	424	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	}	425	}
300
301	row += rowstride;
302	line += ximage->bytes_per_line;
303	}	426	}
304		427
305	XPutImage (dpy, pm, gc, ximage, 0, 0, dst_x, dst_y, width, height);	428	XRenderFreePicture (dpy, mul);
306	XDestroyImage (ximage);	429	XRenderFreePicture (dpy, dst);
307	XFreeGC (dpy, gc);	430	XRenderFreePicture (dpy, src);
308		431
309	return true;	432	::swap (img->ref, ref);
		433	::swap (img->pm , pm );
		434
		435	delete img;
310	}	436	}
311		437
312	rxvt_img *	438	rxvt_img *
313	rxvt_img::clone ()	439	rxvt_img::clone ()
314	{	440	{
315	rxvt_img *img = new rxvt_img (s, format, w, h);	441	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	}	442	}
321		443
322	rxvt_img *	444	static XRenderPictFormat *
323	rxvt_img::sub_rect (int x, int y, int width, int height, int repeat)	445	find_alpha_format_for (Display dpy, XRenderPictFormat format)
324	{	446	{
325	rxvt_img *img = new rxvt_img (s, format, width, height);	447	if (format->direct.alphaMask)
		448	return format; // already has alpha
326		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	}
		463
		464	rxvt_img *
		465	rxvt_img::reify ()
		466	{
		467	if (x == 0 && y == 0 && w == ref->w && h == ref->h)
		468	return clone ();
		469
327	Display *dpy = s->display->dpy;	470	Display *dpy = s->display->dpy;
328	XRenderPictureAttributes pa;	471
329	pa.repeat = repeat;	472	// add an alpha channel if...
330	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);	473	bool alpha = !format->direct.alphaMask // pixmap has none yet
		474	&& (x \|\| y) // we need one because of non-zero offset
		475	&& repeat == RepeatNone; // and we have no good pixels to fill with
		476
		477	rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat);
		478	img->alloc ();
		479
		480	Picture src = src_picture ();
331	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);	481	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
332		482
		483	if (alpha)
		484	{
		485	XRenderColor rc = { 0, 0, 0, 0 };
		486	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);
		488	}
		489	else
333	XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, width, height);	490	XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h);
334		491
335	XRenderFreePicture (dpy, src);	492	XRenderFreePicture (dpy, src);
336	XRenderFreePicture (dpy, dst);	493	XRenderFreePicture (dpy, dst);
337		494
338	return img;	495	return img;
339	}	496	}
340		497
341	rxvt_img *	498	rxvt_img *
		499	rxvt_img::sub_rect (int x, int y, int width, int height)
		500	{
		501	rxvt_img *img = clone ();
		502
		503	img->x += x;
		504	img->y += y;
		505
		506	if (w != width \|\| h != height)
		507	{
		508	img->w = width;
		509	img->h = height;
		510
		511	rxvt_img *img2 = img->reify ();
		512	delete img;
		513	img = img2;
		514	}
		515
		516	return img;
		517	}
		518
		519	rxvt_img *
342	rxvt_img::transform (int new_width, int new_height, double matrix[9], int repeat)	520	rxvt_img::transform (int new_width, int new_height, double matrix[9])
343	{	521	{
344	rxvt_img *img = new rxvt_img (s, format, new_width, new_height);	522	rxvt_img *img = new rxvt_img (s, format, 0, 0, new_width, new_height, repeat);
		523	img->alloc ();
345		524
346	Display *dpy = s->display->dpy;	525	Display *dpy = s->display->dpy;
347	XRenderPictureAttributes pa;	526	Picture src = src_picture ();
348	pa.repeat = repeat;
349	Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
350	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);	527	Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
351		528
352	XTransform xfrm;	529	XTransform xfrm;
353		530
354	for (int i = 0; i < 3; ++i)	531	for (int i = 0; i < 3; ++i)
355	for (int j = 0; j < 3; ++j)	532	for (int j = 0; j < 3; ++j)
356	xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);	533	xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);
357		534
		535	xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO
		536	xfrm.matrix [1][2] -= XDoubleToFixed (y);
		537
358	XRenderSetPictureFilter (dpy, src, "good", 0, 0);	538	XRenderSetPictureFilter (dpy, src, "good", 0, 0);
359	XRenderSetPictureTransform (dpy, src, &xfrm);	539	XRenderSetPictureTransform (dpy, src, &xfrm);
360	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height);	540	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height);
361		541
362	XRenderFreePicture (dpy, src);	542	XRenderFreePicture (dpy, src);
…		…
366	}	546	}
367		547
368	rxvt_img *	548	rxvt_img *
369	rxvt_img::scale (int new_width, int new_height)	549	rxvt_img::scale (int new_width, int new_height)
370	{	550	{
		551	if (w == new_width && h == new_height)
		552	return clone ();
		553
371	double matrix[9] = {	554	double matrix[9] = {
372	w / (double)new_width, 0, 0,	555	w / (double)new_width, 0, 0,
373	0, h / (double)new_height, 0,	556	0, h / (double)new_height, 0,
374	0, 0, 1	557	0, 0, 1
375	};	558	};
376		559
		560	int old_repeat_mode = repeat;
		561	repeat = RepeatPad; // not right, but xrender can't proeprly scale it seems
		562
377	return transform (new_width, new_height, matrix);	563	rxvt_img *img = transform (new_width, new_height, matrix);
378	}
379		564
		565	repeat = old_repeat_mode;
		566	img->repeat = repeat;
		567
		568	return img;
		569	}
		570
380	rxvt_img *	571	rxvt_img *
381	rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi, int repeat)	572	rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi)
382	{	573	{
383	double s = sin (phi);	574	double s = sin (phi);
384	double c = cos (phi);	575	double c = cos (phi);
385		576
386	double matrix[9] = {	577	double matrix[9] = {
387	c, -s, -c * x + s * y + x,	578	c, -s, -c * x + s * y + x,
388	s, c, -s * x - c * y + y,	579	s, c, -s * x - c * y + y,
389	0, 0, 1	580	0, 0, 1
390	};	581	};
391		582
392	return transform (new_width, new_height, matrix, repeat);	583	return transform (new_width, new_height, matrix);
393	}	584	}
394		585
395	rxvt_img *	586	rxvt_img *
396	rxvt_img::convert_to (XRenderPictFormat *new_format)	587	rxvt_img::convert_format (XRenderPictFormat *new_format, const rxvt_color &bg)
397	{	588	{
		589	if (new_format == format)
		590	return clone ();
		591
398	rxvt_img *img = new rxvt_img (s, new_format, w, h);	592	rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat);
		593	img->alloc ();
399		594
400	Display *dpy = s->display->dpy;	595	Display *dpy = s->display->dpy;
401	Picture src = XRenderCreatePicture (dpy, pm, format, 0, 0);	596	Picture src = src_picture ();
402	Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);	597	Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);
		598	int op = PictOpSrc;
403		599
		600	if (format->direct.alphaMask && !new_format->direct.alphaMask)
		601	{
		602	// 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 };
		607	XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);
		608
		609	op = PictOpOver;
		610	}
		611
404	XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);	612	XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
405		613
406	XRenderFreePicture (dpy, src);	614	XRenderFreePicture (dpy, src);
407	XRenderFreePicture (dpy, dst);	615	XRenderFreePicture (dpy, dst);
408		616
409	return img;	617	return img;
410	}	618	}
411		619
		620	rxvt_img *
		621	rxvt_img::blend (rxvt_img *img, double factor)
		622	{
		623	rxvt_img *img2 = clone ();
		624	Display *dpy = s->display->dpy;
		625	Picture src = img->src_picture ();
		626	Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0);
		627	Picture mask = create_xrender_mask (dpy, img->pm, False, False);
		628
		629	XRenderColor mask_c;
		630
		631	mask_c.alpha = float_to_component (factor);
		632	mask_c.red =
		633	mask_c.green =
		634	mask_c.blue = 0;
		635	XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
		636
		637	XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h);
		638
		639	XRenderFreePicture (dpy, src);
		640	XRenderFreePicture (dpy, dst);
		641	XRenderFreePicture (dpy, mask);
		642
		643	return img2;
		644	}
		645
412	#endif	646	#endif
413		647

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Comparing rxvt-unicode/src/rxvtimg.C (file contents): Revision 1.19 by root, Tue Jun 5 13:39:26 2012 UTC vs. Revision 1.75 by sf-exg, Sun Jun 10 07:51:45 2012 UTC

Diff Legend

Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.19 by root, Tue Jun 5 13:39:26 2012 UTC vs.
Revision 1.75 by sf-exg, Sun Jun 10 07:51:45 2012 UTC