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Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.29 by root, Wed Jun 6 20:55:36 2012 UTC vs.
Revision 1.109 by sf-exg, Sat Jul 15 08:16:31 2017 UTC

1/*----------------------------------------------------------------------*
2 * File: rxvtimg.C
3 *----------------------------------------------------------------------*
4 *
5 * All portions of code are copyright by their respective author/s.
6 * Copyright (c) 2012 Marc Lehmann <schmorp@schmorp.de>
7 * Copyright (c) 2012 Emanuele Giaquinta <e.giaquinta@glauco.it>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 3 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *---------------------------------------------------------------------*/
23
24#include <string.h>
1#include <math.h> 25#include <math.h>
2#include "../config.h" 26#include "../config.h"
3#include "rxvt.h" 27#include "rxvt.h"
4 28
5#if HAVE_IMG 29#if HAVE_IMG
6 30
7#define float_to_component(d) ((d) * 65535.99) 31typedef rxvt_img::nv nv;
8 32
33namespace
34{
35 struct mat3x3
36 {
37 nv v[3][3];
38
39 mat3x3 ()
40 {
41 }
42
43 mat3x3 (const nv *matrix)
44 {
45 memcpy (v, matrix, sizeof (v));
46 }
47
48 mat3x3 (nv v11, nv v12, nv v13, nv v21, nv v22, nv v23, nv v31, nv v32, nv v33)
49 {
50 v[0][0] = v11; v[0][1] = v12; v[0][2] = v13;
51 v[1][0] = v21; v[1][1] = v22; v[1][2] = v23;
52 v[2][0] = v31; v[2][1] = v32; v[2][2] = v33;
53 }
54
55 mat3x3 inverse ();
56
57 nv *operator [](int i) { return &v[i][0]; }
58 const nv *operator [](int i) const { return &v[i][0]; }
59
60 operator const nv * () const { return &v[0][0]; }
61 operator nv * () { return &v[0][0]; }
62
63 // quite inefficient, hopefully gcc pulls the w calc out of any loops
64 nv apply1 (int i, nv x, nv y)
65 {
66 mat3x3 &m = *this;
67
68 nv v = m[i][0] * x + m[i][1] * y + m[i][2];
69 nv w = m[2][0] * x + m[2][1] * y + m[2][2];
70
71 return v * (1. / w);
72 }
73
74 static mat3x3 translate (nv x, nv y);
75 static mat3x3 scale (nv s, nv t);
76 static mat3x3 rotate (nv phi);
77 };
78
79 mat3x3
80 mat3x3::inverse ()
81 {
82 mat3x3 &m = *this;
83 mat3x3 inv;
84
85 nv s0 = m[2][2] * m[1][1] - m[2][1] * m[1][2];
86 nv s1 = m[2][1] * m[0][2] - m[2][2] * m[0][1];
87 nv s2 = m[1][2] * m[0][1] - m[1][1] * m[0][2];
88
89 nv invdet = 1. / (m[0][0] * s0 + m[1][0] * s1 + m[2][0] * s2);
90
91 inv[0][0] = invdet * s0;
92 inv[0][1] = invdet * s1;
93 inv[0][2] = invdet * s2;
94
95 inv[1][0] = invdet * (m[2][0] * m[1][2] - m[2][2] * m[1][0]);
96 inv[1][1] = invdet * (m[2][2] * m[0][0] - m[2][0] * m[0][2]);
97 inv[1][2] = invdet * (m[1][0] * m[0][2] - m[1][2] * m[0][0]);
98
99 inv[2][0] = invdet * (m[2][1] * m[1][0] - m[2][0] * m[1][1]);
100 inv[2][1] = invdet * (m[2][0] * m[0][1] - m[2][1] * m[0][0]);
101 inv[2][2] = invdet * (m[1][1] * m[0][0] - m[1][0] * m[0][1]);
102
103 return inv;
104 }
105
106 static mat3x3
107 operator *(const mat3x3 &a, const mat3x3 &b)
108 {
109 mat3x3 r;
110
111 for (int i = 0; i < 3; ++i)
112 for (int j = 0; j < 3; ++j)
113 r[i][j] = a[i][0] * b[0][j]
114 + a[i][1] * b[1][j]
115 + a[i][2] * b[2][j];
116
117 return r;
118 }
119
120 mat3x3
121 mat3x3::translate (nv x, nv y)
122 {
123 return mat3x3 (
124 1, 0, x,
125 0, 1, y,
126 0, 0, 1
127 );
128 }
129
130 mat3x3
131 mat3x3::scale (nv s, nv t)
132 {
133 return mat3x3 (
134 s, 0, 0,
135 0, t, 0,
136 0, 0, 1
137 );
138 }
139
140 // clockwise
141 mat3x3
142 mat3x3::rotate (nv phi)
143 {
144 nv s = sin (phi);
145 nv c = cos (phi);
146
147 return mat3x3 (
148 c, -s, 0,
149 s, c, 0,
150 0, 0, 1
151 );
152 }
153
154 struct composer
155 {
156 rxvt_img *srcimg, *dstimg;
157 Picture src, dst, msk;
158 Display *dpy;
159
160 ecb_noinline
161 composer (rxvt_img *srcimg, rxvt_img *dstimg = 0)
162 : srcimg (srcimg), dstimg (dstimg), msk (0)
163 {
164 if (!this->dstimg)
165 this->dstimg = srcimg->new_empty ();
166 else if (!this->dstimg->pm) // somewhat unsatisfying
167 this->dstimg->alloc ();
168
169 dpy = srcimg->d->dpy;
170 src = srcimg->picture ();
171 dst = this->dstimg->picture ();
172 }
173
174 ecb_noinline
175 void mask (bool rgb = true, int w = 1, int h = 1)
176 {
177 Pixmap pixmap = XCreatePixmap (dpy, srcimg->pm, w, h, rgb ? 32 : 8);
178
179 XRenderPictFormat *format = XRenderFindStandardFormat (dpy, rgb ? PictStandardARGB32 : PictStandardA8);
180 XRenderPictureAttributes pa;
181 pa.repeat = RepeatNormal;
182 pa.component_alpha = rgb;
183 msk = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa);
184
185 XFreePixmap (dpy, pixmap);
186
187 ecb_assume (msk);
188 }
189
190 // CreateSolidFill creates a very very very weird picture
191 void mask (const rgba &c)
192 {
193 // the casts are needed in C++11 (see 8.5.1)
194 XRenderColor rc = {
195 (unsigned short)(c.r * c.a / 65535),
196 (unsigned short)(c.g * c.a / 65535),
197 (unsigned short)(c.b * c.a / 65535),
198 c.a
199 };
200 msk = XRenderCreateSolidFill (dpy, &rc);
201 ecb_assume (msk);
202 }
203
204 void fill (const rgba &c)
205 {
206 XRenderColor rc = {
207 (unsigned short)(c.r * c.a / 65535),
208 (unsigned short)(c.g * c.a / 65535),
209 (unsigned short)(c.b * c.a / 65535),
210 c.a
211 };
212
213 XRenderFillRectangle (dpy, PictOpSrc, msk, &rc, 0, 0, 1, 1);
214 }
215
216 operator rxvt_img *()
217 {
218 return dstimg;
219 }
220
221 ecb_noinline
222 ~composer ()
223 {
224 XRenderFreePicture (dpy, src);
225 XRenderFreePicture (dpy, dst);
226 if (msk) XRenderFreePicture (dpy, msk);
227 }
228 };
229}
230
231static XRenderPictFormat *
232find_alpha_format_for (Display *dpy, XRenderPictFormat *format)
233{
234 if (format->direct.alphaMask)
235 return format; // already has alpha
236
237 // try to find a suitable alpha format, one bit alpha is enough for our purposes
238 if (format->type == PictTypeDirect)
239 for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n)
240 if (f->direct.alphaMask
241 && f->type == PictTypeDirect
242 && ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask )
243 && ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask)
244 && ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask ))
245 return f;
246
247 // should be a very good fallback
248 return XRenderFindStandardFormat (dpy, PictStandardARGB32);
249}
250
9rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height) 251rxvt_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) 252: d(screen->display), x(x), y(y), w(width), h(height), format(format), repeat(repeat),
253 pm(0), ref(0)
11{ 254{
12 pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth);
13} 255}
14 256
15rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height, Pixmap pixmap) 257rxvt_img::rxvt_img (rxvt_display *display, XRenderPictFormat *format, int x, int y, int width, int height, int repeat)
16: s(screen), pm(pixmap), w(width), h(height), format(format), shared(false) 258: d(display), x(x), y(y), w(width), h(height), format(format), repeat(repeat),
259 pm(0), ref(0)
17{ 260{
261}
262
263rxvt_img::rxvt_img (const rxvt_img &img)
264: d(img.d), x(img.x), y(img.y), w(img.w), h(img.h), format(img.format), repeat(img.repeat), pm(img.pm), ref(img.ref)
265{
266 ++ref->cnt;
18} 267}
19 268
20rxvt_img * 269rxvt_img *
21rxvt_img::new_from_root (rxvt_screen *s) 270rxvt_img::new_from_root (rxvt_screen *s)
22{ 271{
23 Display *dpy = s->display->dpy; 272 Display *dpy = s->dpy;
24 unsigned int root_pm_w, root_pm_h; 273 unsigned int root_pm_w, root_pm_h;
25 Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_XROOTPMAP_ID]); 274 Pixmap root_pixmap = s->display->get_pixmap_property (s->display->xa [XA_XROOTPMAP_ID]);
26 if (root_pixmap == None) 275 if (root_pixmap == None)
27 root_pixmap = s->display->get_pixmap_property (s->display->xa[XA_ESETROOT_PMAP_ID]); 276 root_pixmap = s->display->get_pixmap_property (s->display->xa [XA_ESETROOT_PMAP_ID]);
28 277
29 if (root_pixmap == None) 278 if (root_pixmap == None)
30 return 0; 279 return 0;
31 280
32 Window wdummy; 281 Window wdummy;
… …
37 return 0; 286 return 0;
38 287
39 rxvt_img *img = new rxvt_img ( 288 rxvt_img *img = new rxvt_img (
40 s, 289 s,
41 XRenderFindVisualFormat (dpy, DefaultVisual (dpy, s->display->screen)), 290 XRenderFindVisualFormat (dpy, DefaultVisual (dpy, s->display->screen)),
291 0,
292 0,
42 root_pm_w, 293 root_pm_w,
43 root_pm_h, 294 root_pm_h
44 root_pixmap
45 ); 295 );
46 296
47 img->shared = true; 297 img->pm = root_pixmap;
298 img->ref = new pixref (root_pm_w, root_pm_h);
299 img->ref->ours = false;
300
301 return img;
302}
303
304# if HAVE_PIXBUF
305
306rxvt_img *
307rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb)
308{
309 Display *dpy = s->dpy;
310
311 int width = gdk_pixbuf_get_width (pb);
312 int height = gdk_pixbuf_get_height (pb);
313
314 if (width > 32767 || height > 32767) // well, we *could* upload in chunks
315 rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big (maximum size 32768x32768).\n");
316
317 // since we require rgb24/argb32 formats from xrender we assume
318 // that both 24 and 32 bpp MUST be supported by any screen that supports xrender
319
320 int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
321
322 XImage xi;
323
324 xi.width = width;
325 xi.height = height;
326 xi.xoffset = 0;
327 xi.format = ZPixmap;
328 xi.byte_order = ImageByteOrder (dpy);
329 xi.bitmap_unit = 0; //XY only, unused
330 xi.bitmap_bit_order = 0; //XY only, unused
331 xi.bitmap_pad = BitmapPad (dpy);
332 xi.depth = 32;
333 xi.bytes_per_line = 0;
334 xi.bits_per_pixel = 32; //Z only
335 xi.red_mask = 0x00000000; //Z only, unused
336 xi.green_mask = 0x00000000; //Z only, unused
337 xi.blue_mask = 0x00000000; //Z only, unused
338 xi.obdata = 0; // probably unused
339
340 bool byte_order_mismatch = byte_order != xi.byte_order;
341
342 if (!XInitImage (&xi))
343 rxvt_fatal ("unable to initialise ximage, please report.\n");
344
345 if (height > INT_MAX / xi.bytes_per_line)
346 rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n");
347
348 xi.data = (char *)rxvt_malloc (height * xi.bytes_per_line);
349
350 int rowstride = gdk_pixbuf_get_rowstride (pb);
351 bool pb_has_alpha = gdk_pixbuf_get_has_alpha (pb);
352 unsigned char *row = gdk_pixbuf_get_pixels (pb);
353
354 char *line = xi.data;
355
356 for (int y = 0; y < height; y++)
357 {
358 unsigned char *src = row;
359 uint32_t *dst = (uint32_t *)line;
360
361 for (int x = 0; x < width; x++)
362 {
363 uint8_t r = *src++;
364 uint8_t g = *src++;
365 uint8_t b = *src++;
366 uint8_t a = *src;
367
368 // this is done so it can be jump-free, but newer gcc's clone inner the loop
369 a = pb_has_alpha ? a : 255;
370 src += pb_has_alpha;
371
372 r = (r * a + 127) / 255;
373 g = (g * a + 127) / 255;
374 b = (b * a + 127) / 255;
375
376 uint32_t v = (a << 24) | (r << 16) | (g << 8) | b;
377
378 if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch)
379 v = ecb_bswap32 (v);
380
381 *dst++ = v;
382 }
383
384 row += rowstride;
385 line += xi.bytes_per_line;
386 }
387
388 rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, PictStandardARGB32), 0, 0, width, height);
389 img->alloc ();
390
391 GC gc = XCreateGC (dpy, img->pm, 0, 0);
392 XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height);
393 XFreeGC (dpy, gc);
394
395 free (xi.data);
48 396
49 return img; 397 return img;
50} 398}
51 399
52rxvt_img * 400rxvt_img *
… …
56 GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err); 404 GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err);
57 405
58 if (!pb) 406 if (!pb)
59 rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message); 407 rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message);
60 408
61 rxvt_img *img = new rxvt_img ( 409 rxvt_img *img = new_from_pixbuf (s, pb);
62 s,
63 XRenderFindStandardFormat (s->display->dpy, gdk_pixbuf_get_has_alpha (pb) ? PictStandardARGB32 : PictStandardRGB24),
64 gdk_pixbuf_get_width (pb),
65 gdk_pixbuf_get_height (pb)
66 );
67
68 img->render_pixbuf (pb, 0, 0, img->w, img->h, 0, 0);
69 410
70 g_object_unref (pb); 411 g_object_unref (pb);
71 412
72 return img; 413 return img;
73} 414}
74 415
416# endif
417
418void
419rxvt_img::destroy ()
420{
421 if (--ref->cnt)
422 return;
423
424 if (pm && ref->ours)
425 XFreePixmap (d->dpy, pm);
426
427 delete ref;
428}
429
75rxvt_img::~rxvt_img () 430rxvt_img::~rxvt_img ()
76{ 431{
77 if (!shared) 432 destroy ();
78 XFreePixmap (s->display->dpy, pm); 433}
434
435void
436rxvt_img::alloc ()
437{
438 pm = XCreatePixmap (d->dpy, d->root, w, h, format->depth);
439 ref = new pixref (w, h);
440}
441
442rxvt_img *
443rxvt_img::new_empty ()
444{
445 rxvt_img *img = new rxvt_img (d, format, x, y, w, h, repeat);
446 img->alloc ();
447
448 return img;
449}
450
451Picture
452rxvt_img::picture ()
453{
454 Display *dpy = d->dpy;
455
456 XRenderPictureAttributes pa;
457 pa.repeat = repeat;
458 Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
459
460 return pic;
79} 461}
80 462
81void 463void
82rxvt_img::unshare () 464rxvt_img::unshare ()
83{ 465{
84 if (!shared) 466 if (ref->cnt == 1 && ref->ours)
85 return; 467 return;
86 468
469 Pixmap pm2 = XCreatePixmap (d->dpy, d->root, ref->w, ref->h, format->depth);
470 GC gc = XCreateGC (d->dpy, pm, 0, 0);
471 XCopyArea (d->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0);
472 XFreeGC (d->dpy, gc);
473
474 destroy ();
475
476 pm = pm2;
477 ref = new pixref (ref->w, ref->h);
478}
479
480void
481rxvt_img::fill (const rgba &c, int x, int y, int w, int h)
482{
483 XRenderColor rc = { c.r, c.g, c.b, c.a };
484
485 Display *dpy = d->dpy;
486 Picture src = picture ();
487 XRenderFillRectangle (dpy, PictOpSrc, src, &rc, x, y, w, h);
488 XRenderFreePicture (dpy, src);
489}
490
491void
492rxvt_img::fill (const rgba &c)
493{
494 fill (c, 0, 0, w, h);
495}
496
497void
498rxvt_img::add_alpha ()
499{
500 if (format->direct.alphaMask)
501 return;
502
503 composer cc (this, new rxvt_img (d, find_alpha_format_for (d->dpy, format), x, y, w, h, repeat));
504
505 XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w, h);
506
87 rxvt_img *img = clone (); 507 rxvt_img *img = cc;
88 508
89 ::swap (pm , img->pm); 509 ::swap (img->ref, ref);
90 ::swap (shared, img->shared); 510 ::swap (img->pm , pm );
91 511
92 delete img; 512 delete img;
93} 513}
94 514
95void
96rxvt_img::fill (const rxvt_color &c)
97{
98 XGCValues gcv;
99 gcv.foreground = c;
100 GC gc = XCreateGC (s->display->dpy, pm, GCForeground, &gcv);
101 XFillRectangle (s->display->dpy, pm, gc, 0, 0, w, h);
102 XFreeGC (s->display->dpy, gc);
103}
104
105static void 515static void
106get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params) 516get_gaussian_kernel (int radius, int width, nv *kernel, XFixed *params)
107{ 517{
108 double sigma = radius / 2.0; 518 nv sigma = radius / 2.0;
109 double scale = sqrt (2.0 * M_PI) * sigma; 519 nv scale = sqrt (2.0 * M_PI) * sigma;
110 double sum = 0.0; 520 nv sum = 0.0;
111 521
112 for (int i = 0; i < width; i++) 522 for (int i = 0; i < width; i++)
113 { 523 {
114 double x = i - width / 2; 524 nv x = i - width / 2;
115 kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; 525 kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
116 sum += kernel[i]; 526 sum += kernel[i];
117 } 527 }
118 528
119 params[0] = XDoubleToFixed (width); 529 params[0] = XDoubleToFixed (width);
… …
124} 534}
125 535
126rxvt_img * 536rxvt_img *
127rxvt_img::blur (int rh, int rv) 537rxvt_img::blur (int rh, int rv)
128{ 538{
129 if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) 539 if (!(d->flags & DISPLAY_HAS_RENDER_CONV))
130 return clone (); 540 return clone ();
131 541
132 Display *dpy = s->display->dpy; 542 Display *dpy = d->dpy;
133 int size = max (rh, rv) * 2 + 1; 543 int size = max (rh, rv) * 2 + 1;
134 double *kernel = (double *)malloc (size * sizeof (double)); 544 nv *kernel = (nv *)malloc (size * sizeof (nv));
135 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); 545 XFixed *params = rxvt_temp_buf<XFixed> (size + 2);
136 rxvt_img *img = new rxvt_img (s, format, w, h); 546 rxvt_img *img = new_empty ();
137 547
138 XRenderPictureAttributes pa; 548 XRenderPictureAttributes pa;
139
140 pa.repeat = RepeatPad; 549 pa.repeat = RepeatPad;
141 Picture src = XRenderCreatePicture (dpy, pm , format, CPRepeat, &pa); 550 Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
142 Picture dst = XRenderCreatePicture (dpy, img->pm, format, CPRepeat, &pa); 551 Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
143 552
144 Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth); 553 Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth);
145 Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa); 554 Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa);
146 XFreePixmap (dpy, tmp_pm); 555 XFreePixmap (dpy, tmp_pm);
147 556
… …
163 572
164 size = rv * 2 + 1; 573 size = rv * 2 + 1;
165 get_gaussian_kernel (rv, size, kernel, params); 574 get_gaussian_kernel (rv, size, kernel, params);
166 ::swap (params[0], params[1]); 575 ::swap (params[0], params[1]);
167 576
168 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); 577 XRenderSetPictureFilter (dpy, tmp, FilterConvolution, params, size+2);
169 XRenderComposite (dpy, 578 XRenderComposite (dpy,
170 PictOpSrc, 579 PictOpSrc,
171 tmp, 580 tmp,
172 None, 581 None,
173 dst, 582 dst,
… …
176 0, 0, 585 0, 0,
177 w, h); 586 w, h);
178 } 587 }
179 588
180 free (kernel); 589 free (kernel);
181 free (params); 590
182 XRenderFreePicture (dpy, src); 591 XRenderFreePicture (dpy, src);
183 XRenderFreePicture (dpy, dst); 592 XRenderFreePicture (dpy, dst);
184 XRenderFreePicture (dpy, tmp); 593 XRenderFreePicture (dpy, tmp);
185 594
186 return img; 595 return img;
187} 596}
188 597
189static Picture 598rxvt_img *
190create_xrender_mask (Display *dpy, Drawable drawable, Bool argb) 599rxvt_img::muladd (nv mul, nv add)
191{ 600{
192 Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); 601 // STEP 1: double the image width, fill all odd columns with white (==1)
193 602
194 XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); 603 composer cc (this, new rxvt_img (d, format, 0, 0, w * 2, h, repeat));
195 XRenderPictureAttributes pa;
196 pa.repeat = True;
197 Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa);
198 604
199 XFreePixmap (dpy, pixmap); 605 // why the hell does XRenderSetPictureTransform want a writable matrix :(
606 // that keeps us from just static const'ing this matrix.
607 XTransform h_double = {
608 0x08000, 0, 0,
609 0, 0x10000, 0,
610 0, 0, 0x10000
611 };
200 612
201 return mask; 613 XRenderSetPictureFilter (cc.dpy, cc.src, "nearest", 0, 0);
614 XRenderSetPictureTransform (cc.dpy, cc.src, &h_double);
615 XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w * 2, h);
616
617 cc.mask (false, 2, 1);
618
619 static const XRenderColor c0 = { 0, 0, 0, 0 };
620 XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &c0, 0, 0, 1, 1);
621 static const XRenderColor c1 = { 65535, 65535, 65535, 65535 };
622 XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &c1, 1, 0, 1, 1);
623
624 Picture white = XRenderCreateSolidFill (cc.dpy, &c1);
625
626 XRenderComposite (cc.dpy, PictOpOver, white, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w * 2, h);
627
628 XRenderFreePicture (cc.dpy, white);
629
630 // STEP 2: convolve the image with a 3x1 filter
631 // a 2x1 filter would obviously suffice, but given the total lack of specification
632 // for xrender, I expect different xrender implementations to randomly diverge.
633 // we also halve the image, and hope for the best (again, for lack of specs).
634 composer cc2 (cc.dstimg);
635
636 XFixed kernel [] = {
637 XDoubleToFixed (3), XDoubleToFixed (1),
638 XDoubleToFixed (0), XDoubleToFixed (mul), XDoubleToFixed (add)
639 };
640
641 XTransform h_halve = {
642 0x20000, 0, 0,
643 0, 0x10000, 0,
644 0, 0, 0x10000
645 };
646
647 XRenderSetPictureFilter (cc.dpy, cc2.src, "nearest", 0, 0);
648 XRenderSetPictureTransform (cc.dpy, cc2.src, &h_halve);
649 XRenderSetPictureFilter (cc.dpy, cc2.src, FilterConvolution, kernel, ecb_array_length (kernel));
650
651 XRenderComposite (cc.dpy, PictOpSrc, cc2.src, None, cc2.dst, 0, 0, 0, 0, 0, 0, w * 2, h);
652
653 return cc2;
654}
655
656ecb_noinline static void
657extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc)
658{
659 int32_t x = clamp (c, cl0, cl1);
660 c -= x;
661 xc = x;
662}
663
664ecb_noinline static bool
665extract (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)
666{
667 extract (cl0, cl1, r, xr);
668 extract (cl0, cl1, g, xg);
669 extract (cl0, cl1, b, xb);
670 extract (cl0, cl1, a, xa);
671
672 return xr | xg | xb | xa;
202} 673}
203 674
204void 675void
205rxvt_img::brightness (double r, double g, double b, double a) 676rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a)
206{ 677{
678 unshare ();
679
207 Display *dpy = s->display->dpy; 680 Display *dpy = d->dpy;
208 Picture src = create_xrender_mask (dpy, pm, True);
209 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); 681 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
210 682
683 // loop should not be needed for brightness, as only -1..1 makes sense
684 //while (r | g | b | a)
685 {
686 unsigned short xr, xg, xb, xa;
211 XRenderColor mask_c; 687 XRenderColor mask_c;
212 mask_c.red = float_to_component (r); 688
213 mask_c.green = float_to_component (g); 689 if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
214 mask_c.blue = float_to_component (b);
215 mask_c.alpha = float_to_component (a);
216 XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); 690 XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
217 691
218 XRenderComposite (dpy, PictOpAdd, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); 692 if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
693 {
694 XRenderColor mask_w = { 65535, 65535, 65535, 65535 };
695 XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
696 mask_c.red = -mask_c.red; //TODO: verify that doing clamp, assign, and negation does the right thing
697 mask_c.green = -mask_c.green;
698 mask_c.blue = -mask_c.blue;
699 mask_c.alpha = -mask_c.alpha;
700 XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
701 XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
702 }
703 }
219 704
220 XRenderFreePicture (dpy, src);
221 XRenderFreePicture (dpy, dst); 705 XRenderFreePicture (dpy, dst);
222} 706}
223 707
224void 708void
225rxvt_img::contrast (double r, double g, double b, double a) 709rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a)
226{ 710{
227 if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL)) 711 if (r < 0 || g < 0 || b < 0 || a < 0)
228 return; 712 rxvt_fatal ("rxvt_img::contrast does not support negative values.\n");
229 713
230 Display *dpy = s->display->dpy; 714 // premultiply (yeah, these are not exact, sue me or fix it)
231 Picture src = create_xrender_mask (dpy, pm, True); 715 r = (r * (a >> 8)) >> 8;
232 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); 716 g = (g * (a >> 8)) >> 8;
717 b = (b * (a >> 8)) >> 8;
233 718
719 composer cc (this);
720 rxvt_img *img = cc;
721 img->fill (rgba (0, 0, 0, 0));
722
723 cc.mask (true);
724
725 //TODO: this operator does not yet implement some useful contrast
726 while (r | g | b | a)
727 {
728 unsigned short xr, xg, xb, xa;
234 XRenderColor mask_c; 729 XRenderColor mask_c;
235 mask_c.red = float_to_component (r);
236 mask_c.green = float_to_component (g);
237 mask_c.blue = float_to_component (b);
238 mask_c.alpha = float_to_component (a);
239 XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1);
240 730
241 XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); 731 if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
242
243 XRenderFreePicture (dpy, src);
244 XRenderFreePicture (dpy, dst);
245}
246
247bool
248rxvt_img::render_pixbuf (GdkPixbuf *pixbuf, int src_x, int src_y, int width, int height, int dst_x, int dst_y)
249{
250 Display *dpy = s->display->dpy;
251
252 if (s->visual->c_class != TrueColor)
253 return false;
254
255 uint32_t red_mask, green_mask, blue_mask, alpha_mask;
256
257 red_mask = (uint32_t)format->direct.redMask << format->direct.red;
258 green_mask = (uint32_t)format->direct.greenMask << format->direct.green;
259 blue_mask = (uint32_t)format->direct.blueMask << format->direct.blue;
260 alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha;
261
262 int width_r = ecb_popcount32 (red_mask);
263 int width_g = ecb_popcount32 (green_mask);
264 int width_b = ecb_popcount32 (blue_mask);
265 int width_a = ecb_popcount32 (alpha_mask);
266
267 if (width_r > 8 || width_g > 8 || width_b > 8 || width_a > 8)
268 return false;
269
270 int sh_r = ecb_ctz32 (red_mask);
271 int sh_g = ecb_ctz32 (green_mask);
272 int sh_b = ecb_ctz32 (blue_mask);
273 int sh_a = ecb_ctz32 (alpha_mask);
274
275 if (width > 32767 || height > 32767)
276 return false;
277
278 XImage *ximage = XCreateImage (dpy, s->visual, format->depth, ZPixmap, 0, 0,
279 width, height, 32, 0);
280 if (!ximage)
281 return false;
282
283 if (height > INT_MAX / ximage->bytes_per_line
284 || !(ximage->data = (char *)malloc (height * ximage->bytes_per_line)))
285 {
286 XDestroyImage (ximage);
287 return false;
288 }
289
290 GC gc = XCreateGC (dpy, pm, 0, 0);
291
292 ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
293
294 int rowstride = gdk_pixbuf_get_rowstride (pixbuf);
295 int channels = gdk_pixbuf_get_n_channels (pixbuf);
296 unsigned char *row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels;
297 char *line = ximage->data;
298
299 for (int y = 0; y < height; y++)
300 {
301 for (int x = 0; x < width; x++)
302 { 732 {
303 unsigned char *pixel = row + x * channels; 733 XRenderFillRectangle (cc.dpy, PictOpSrc, cc.msk, &mask_c, 0, 0, 1, 1);
304 uint32_t value; 734 XRenderComposite (cc.dpy, PictOpAdd, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h);
305 unsigned char r, g, b, a;
306
307 if (channels == 4)
308 {
309 a = pixel[3];
310 r = pixel[0] * a / 0xff;
311 g = pixel[1] * a / 0xff;
312 b = pixel[2] * a / 0xff;
313 }
314 else
315 {
316 a = 0xff;
317 r = pixel[0];
318 g = pixel[1];
319 b = pixel[2];
320 }
321
322 value = ((r >> (8 - width_r)) << sh_r)
323 | ((g >> (8 - width_g)) << sh_g)
324 | ((b >> (8 - width_b)) << sh_b)
325 | ((a >> (8 - width_a)) << sh_a);
326
327 if (ximage->bits_per_pixel == 32)
328 ((uint32_t *)line)[x] = value;
329 else
330 XPutPixel (ximage, x, y, value);
331 } 735 }
332
333 row += rowstride;
334 line += ximage->bytes_per_line;
335 } 736 }
336 737
337 XPutImage (dpy, pm, gc, ximage, 0, 0, dst_x, dst_y, width, height); 738 ::swap (img->ref, ref);
338 XDestroyImage (ximage); 739 ::swap (img->pm , pm );
339 XFreeGC (dpy, gc);
340 740
341 return true; 741 delete img;
742}
743
744void
745rxvt_img::draw (rxvt_img *img, int op, nv mask)
746{
747 unshare ();
748
749 composer cc (img, this);
750
751 if (mask != 1.)
752 cc.mask (rgba (0, 0, 0, float_to_component (mask)));
753
754 XRenderComposite (cc.dpy, op, cc.src, cc.msk, cc.dst, x - img->x, y - img->y, 0, 0, 0, 0, w, h);
342} 755}
343 756
344rxvt_img * 757rxvt_img *
345rxvt_img::clone () 758rxvt_img::clone ()
346{ 759{
347 rxvt_img *img = new rxvt_img (s, format, w, h); 760 return new rxvt_img (*this);
761}
348 762
349 GC gc = XCreateGC (s->display->dpy, pm, 0, 0); 763rxvt_img *
350 XCopyArea (s->display->dpy, pm, img->pm, gc, 0, 0, w, h, 0, 0); 764rxvt_img::reify ()
351 XFreeGC (s->display->dpy, gc); 765{
766 if (x == 0 && y == 0 && w == ref->w && h == ref->h)
767 return clone ();
768
769 // add an alpha channel if...
770 bool alpha = !format->direct.alphaMask // pixmap has none yet
771 && (x || y) // we need one because of non-zero offset
772 && repeat == RepeatNone; // and we have no good pixels to fill with
773
774 composer cc (this, new rxvt_img (d, alpha ? find_alpha_format_for (d->dpy, format) : format,
775 0, 0, w, h, repeat));
776
777 if (repeat == RepeatNone)
778 {
779 XRenderColor rc = { 0, 0, 0, 0 };
780 XRenderFillRectangle (cc.dpy, PictOpSrc, cc.dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles
781 XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, 0, 0, 0, 0, x, y, ref->w, ref->h);
782 }
783 else
784 XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, -x, -y, 0, 0, 0, 0, w, h);
785
786 return cc;
787}
788
789rxvt_img *
790rxvt_img::sub_rect (int x, int y, int width, int height)
791{
792 rxvt_img *img = clone ();
793
794 img->x -= x;
795 img->y -= y;
796
797 if (w != width || h != height)
798 {
799 img->w = width;
800 img->h = height;
801
802 rxvt_img *img2 = img->reify ();
803 delete img;
804 img = img2;
805 }
352 806
353 return img; 807 return img;
354} 808}
355 809
356rxvt_img * 810rxvt_img *
357rxvt_img::sub_rect (int x, int y, int width, int height, int repeat) 811rxvt_img::transform (const nv matrix[3][3])
358{ 812{
359 rxvt_img *img = new rxvt_img (s, format, width, height); 813 return transform (mat3x3 (&matrix[0][0]));
360
361 Display *dpy = s->display->dpy;
362 XRenderPictureAttributes pa;
363 pa.repeat = repeat;
364 Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
365 Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
366
367 XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, width, height);
368
369 XRenderFreePicture (dpy, src);
370 XRenderFreePicture (dpy, dst);
371
372 return img;
373} 814}
374 815
375rxvt_img * 816rxvt_img *
376rxvt_img::transform (int new_width, int new_height, double matrix[9], int repeat) 817rxvt_img::transform (const nv *matrix)
377{ 818{
378 rxvt_img *img = new rxvt_img (s, format, new_width, new_height); 819 mat3x3 m (matrix);
379 820
380 Display *dpy = s->display->dpy; 821 // calculate new pixel bounding box coordinates
381 XRenderPictureAttributes pa; 822 nv rmin[2], rmax[2];
382 pa.repeat = repeat; 823
383 Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); 824 for (int i = 0; i < 2; ++i)
384 Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); 825 {
826 nv v;
827
828 v = m.apply1 (i, 0+x, 0+y); rmin [i] = rmax [i] = v;
829 v = m.apply1 (i, w+x, 0+y); min_it (rmin [i], v); max_it (rmax [i], v);
830 v = m.apply1 (i, 0+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v);
831 v = m.apply1 (i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v);
832 }
833
834 float sx = rmin [0] - x;
835 float sy = rmin [1] - y;
836
837 // TODO: adjust matrix for subpixel accuracy
838 int nx = floor (rmin [0]);
839 int ny = floor (rmin [1]);
840
841 int new_width = ceil (rmax [0] - rmin [0]);
842 int new_height = ceil (rmax [1] - rmin [1]);
843
844 mat3x3 inv = (mat3x3::translate (-x, -y) * m * mat3x3::translate (x, y)).inverse ();
845
846 composer cc (this, new rxvt_img (d, format, nx, ny, new_width, new_height, repeat));
385 847
386 XTransform xfrm; 848 XTransform xfrm;
387 849
388 for (int i = 0; i < 3; ++i) 850 for (int i = 0; i < 3; ++i)
389 for (int j = 0; j < 3; ++j) 851 for (int j = 0; j < 3; ++j)
390 xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]); 852 xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]);
391 853
392 XRenderSetPictureFilter (dpy, src, "good", 0, 0); 854 XRenderSetPictureFilter (cc.dpy, cc.src, "good", 0, 0);
393 XRenderSetPictureTransform (dpy, src, &xfrm); 855 XRenderSetPictureTransform (cc.dpy, cc.src, &xfrm);
394 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height); 856 XRenderComposite (cc.dpy, PictOpSrc, cc.src, None, cc.dst, sx, sy, 0, 0, 0, 0, new_width, new_height);
395 857
396 XRenderFreePicture (dpy, src); 858 return cc;
397 XRenderFreePicture (dpy, dst); 859}
860
861rxvt_img *
862rxvt_img::scale (int new_width, int new_height)
863{
864 if (w == new_width && h == new_height)
865 return clone ();
866
867 int old_repeat_mode = repeat;
868 repeat = RepeatPad; // not right, but xrender can't properly scale it seems
869
870 rxvt_img *img = transform (mat3x3::scale (new_width / (nv)w, new_height / (nv)h));
871
872 repeat = old_repeat_mode;
873 img->repeat = repeat;
398 874
399 return img; 875 return img;
400} 876}
401 877
402rxvt_img * 878rxvt_img *
403rxvt_img::scale (int new_width, int new_height) 879rxvt_img::rotate (int cx, int cy, nv phi)
404{ 880{
405 double matrix[9] = { 881 move (-cx, -cy);
406 w / (double)new_width, 0, 0, 882 rxvt_img *img = transform (mat3x3::rotate (phi));
407 0, h / (double)new_height, 0, 883 move ( cx, cy);
408 0, 0, 1 884 img->move (cx, cy);
409 };
410 885
411 return transform (new_width, new_height, matrix); 886 return img;
412} 887}
413 888
414rxvt_img * 889rxvt_img *
415rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi, int repeat)
416{
417 double s = sin (phi);
418 double c = cos (phi);
419
420 double matrix[9] = {
421 c, -s, -c * x + s * y + x,
422 s, c, -s * x - c * y + y,
423 0, 0, 1
424 };
425
426 return transform (new_width, new_height, matrix, repeat);
427}
428
429rxvt_img *
430rxvt_img::convert_to (XRenderPictFormat *new_format, const rxvt_color &bg) 890rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg)
431{ 891{
432 rxvt_img *img = new rxvt_img (s, new_format, w, h); 892 if (new_format == format)
893 return clone ();
433 894
434 Display *dpy = s->display->dpy; 895 composer cc (this, new rxvt_img (d, new_format, x, y, w, h, repeat));
435 Picture src = XRenderCreatePicture (dpy, pm, format, 0, 0); 896
436 Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);
437 int op = PictOpSrc; 897 int op = PictOpSrc;
438 898
439 if (format->direct.alphaMask && !new_format->direct.alphaMask) 899 if (format->direct.alphaMask && !new_format->direct.alphaMask)
440 { 900 {
441 // does it have to be that complicated 901 // does it have to be that complicated
442 rgba c;
443 bg.get (c);
444
445 XRenderColor rc = { c.r, c.g, c.b, 0xffff }; 902 XRenderColor rc = { bg.r, bg.g, bg.b, bg.a };
446 XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h); 903 XRenderFillRectangle (cc.dpy, PictOpSrc, cc.dst, &rc, 0, 0, w, h);
447 904
448 op = PictOpOver; 905 op = PictOpOver;
449 } 906 }
450 907
451 XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); 908 XRenderComposite (cc.dpy, op, cc.src, None, cc.dst, 0, 0, 0, 0, 0, 0, w, h);
452 909
453 XRenderFreePicture (dpy, src); 910 return cc;
454 XRenderFreePicture (dpy, dst); 911}
912
913rxvt_img *
914rxvt_img::tint (const rgba &c)
915{
916 composer cc (this);
917 cc.mask (true);
918 cc.fill (c);
919
920 XRenderComposite (cc.dpy, PictOpSrc, cc.src, cc.msk, cc.dst, 0, 0, 0, 0, 0, 0, w, h);
921
922 return cc;
923}
924
925rxvt_img *
926rxvt_img::shade (nv factor, rgba c)
927{
928 clamp_it (factor, -1., 1.);
929 factor++;
930
931 if (factor > 1)
932 {
933 c.r = c.r * (2 - factor);
934 c.g = c.g * (2 - factor);
935 c.b = c.b * (2 - factor);
936 }
937 else
938 {
939 c.r = c.r * factor;
940 c.g = c.g * factor;
941 c.b = c.b * factor;
942 }
943
944 rxvt_img *img = this->tint (c);
945
946 if (factor > 1)
947 {
948 c.a = 0xffff;
949 c.r =
950 c.g =
951 c.b = 0xffff * (factor - 1);
952
953 img->brightness (c.r, c.g, c.b, c.a);
954 }
455 955
456 return img; 956 return img;
457} 957}
458 958
459rxvt_img * 959rxvt_img *
460rxvt_img::blend (rxvt_img *img, double factor) 960rxvt_img::filter (const char *name, int nparams, nv *params)
461{ 961{
462 rxvt_img *img2 = clone (); 962 composer cc (this);
463 Display *dpy = s->display->dpy;
464 Picture src = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
465 Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0);
466 Picture mask = create_xrender_mask (dpy, img->pm, False);
467 963
468 XRenderColor mask_c; 964 XFixed *xparams = rxvt_temp_buf<XFixed> (nparams);
469 965
470 mask_c.alpha = float_to_component (factor); 966 for (int i = 0; i < nparams; ++i)
471 mask_c.red = 967 xparams [i] = XDoubleToFixed (params [i]);
472 mask_c.green =
473 mask_c.blue = 0;
474 XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
475 968
969 XRenderSetPictureFilter (cc.dpy, cc.src, name, xparams, nparams);
970
476 XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h); 971 XRenderComposite (cc.dpy, PictOpSrc, cc.src, 0, cc.dst, 0, 0, 0, 0, 0, 0, w, h);
477 972
478 XRenderFreePicture (dpy, src);
479 XRenderFreePicture (dpy, dst);
480 XRenderFreePicture (dpy, mask);
481
482 return img2; 973 return cc;
483} 974}
484 975
485#endif 976#endif
486 977

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