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Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.75 by sf-exg, Sun Jun 10 07:51:45 2012 UTC vs.
Revision 1.89 by root, Thu Jun 14 19:44:31 2012 UTC

1#include <math.h> 1#include <math.h>
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
7#if 0
8struct pict
9{
10 Display *dpy;
11 Picture pic;
12
13 operator Picture () const
14 {
15 return pic;
16 }
17
18 pict ()
19 : pic (0)
20 {
21 }
22
23 pict (rxvt_img *img, XRenderPictFormat *format = 0)
24 : dpy (img->s->display->dpy)
25 {
26 XRenderPictureAttributes pa;
27 pa.repeat = img->repeat;
28 pic = XRenderCreatePicture (dpy, img->pm, format ? format : img->format, CPRepeat, &pa);
29 }
30
31 ~pict ()
32 {
33 if (pic)
34 XRenderFreePicture (dpy, pic);
35 }
36};
37#endif
38
39static XRenderPictFormat *
40find_alpha_format_for (Display *dpy, XRenderPictFormat *format)
41{
42 if (format->direct.alphaMask)
43 return format; // already has alpha
44
45 // try to find a suitable alpha format, one bit alpha is enough for our purposes
46 if (format->type == PictTypeDirect)
47 for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n)
48 if (f->direct.alphaMask
49 && f->type == PictTypeDirect
50 && ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask )
51 && ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask)
52 && ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask ))
53 return f;
54
55 // should be a very good fallback
56 return XRenderFindStandardFormat (dpy, PictStandardARGB32);
57}
6 58
7rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat) 59rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat)
8: s(screen), x(x), y(y), w(width), h(height), format(format), repeat(repeat), 60: s(screen), x(x), y(y), w(width), h(height), format(format), repeat(repeat),
9 pm(0), ref(0) 61 pm(0), ref(0)
10{ 62{
50 102
51 return img; 103 return img;
52} 104}
53 105
54# if HAVE_PIXBUF 106# if HAVE_PIXBUF
107
55rxvt_img * 108rxvt_img *
56rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) 109rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb)
57{ 110{
58 Display *dpy = s->display->dpy; 111 Display *dpy = s->display->dpy;
59 112
63 if (width > 32767 || height > 32767) // well, we *could* upload in chunks 116 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"); 117 rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big (maximum size 32768x32768).\n");
65 118
66 // since we require rgb24/argb32 formats from xrender we assume 119 // 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 120 // 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;
69 121
70 int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; 122 int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
71 123
72 XImage xi; 124 XImage xi;
73 125
77 xi.format = ZPixmap; 129 xi.format = ZPixmap;
78 xi.byte_order = ImageByteOrder (dpy); 130 xi.byte_order = ImageByteOrder (dpy);
79 xi.bitmap_unit = 0; //XY only, unused 131 xi.bitmap_unit = 0; //XY only, unused
80 xi.bitmap_bit_order = 0; //XY only, unused 132 xi.bitmap_bit_order = 0; //XY only, unused
81 xi.bitmap_pad = BitmapPad (dpy); 133 xi.bitmap_pad = BitmapPad (dpy);
82 xi.depth = depth; 134 xi.depth = 32;
83 xi.bytes_per_line = 0; 135 xi.bytes_per_line = 0;
84 xi.bits_per_pixel = 32; //Z only 136 xi.bits_per_pixel = 32; //Z only
85 xi.red_mask = 0x00000000; //Z only, unused 137 xi.red_mask = 0x00000000; //Z only, unused
86 xi.green_mask = 0x00000000; //Z only, unused 138 xi.green_mask = 0x00000000; //Z only, unused
87 xi.blue_mask = 0x00000000; //Z only, unused 139 xi.blue_mask = 0x00000000; //Z only, unused
96 rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n"); 148 rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n");
97 149
98 xi.data = (char *)rxvt_malloc (height * xi.bytes_per_line); 150 xi.data = (char *)rxvt_malloc (height * xi.bytes_per_line);
99 151
100 int rowstride = gdk_pixbuf_get_rowstride (pb); 152 int rowstride = gdk_pixbuf_get_rowstride (pb);
101 153 bool pb_has_alpha = gdk_pixbuf_get_has_alpha (pb);
102 assert (3 + (depth == 32) == gdk_pixbuf_get_n_channels (pb));
103 unsigned char *row = gdk_pixbuf_get_pixels (pb); 154 unsigned char *row = gdk_pixbuf_get_pixels (pb);
155
104 char *line = xi.data; 156 char *line = xi.data;
105 157
106 for (int y = 0; y < height; y++) 158 for (int y = 0; y < height; y++)
107 { 159 {
108 unsigned char *src = row; 160 unsigned char *src = row;
109 uint32_t *dst = (uint32_t *)line; 161 uint32_t *dst = (uint32_t *)line;
110 162
111 if (depth == 24) 163 if (!pb_has_alpha)
112 for (int x = 0; x < width; x++) 164 for (int x = 0; x < width; x++)
113 { 165 {
114 uint8_t r = *src++; 166 uint8_t r = *src++;
115 uint8_t g = *src++; 167 uint8_t g = *src++;
116 uint8_t b = *src++; 168 uint8_t b = *src++;
117 169
118 uint32_t v = (r << 16) | (g << 8) | b; 170 uint32_t v = (255 << 24) | (r << 16) | (g << 8) | b;
119 171
120 if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) 172 if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch)
121 v = ecb_bswap32 (v); 173 v = ecb_bswap32 (v);
122 174
123 *dst++ = v; 175 *dst++ = v;
140 192
141 row += rowstride; 193 row += rowstride;
142 line += xi.bytes_per_line; 194 line += xi.bytes_per_line;
143 } 195 }
144 196
145 rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, depth == 24 ? PictStandardRGB24 : PictStandardARGB32), 0, 0, width, height); 197 rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, PictStandardARGB32), 0, 0, width, height);
146 img->alloc (); 198 img->alloc ();
147 199
148 GC gc = XCreateGC (dpy, img->pm, 0, 0); 200 GC gc = XCreateGC (dpy, img->pm, 0, 0);
149 XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height); 201 XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height);
150 XFreeGC (dpy, gc); 202 XFreeGC (dpy, gc);
167 219
168 g_object_unref (pb); 220 g_object_unref (pb);
169 221
170 return img; 222 return img;
171} 223}
224
172# endif 225# endif
173 226
174void 227void
175rxvt_img::destroy () 228rxvt_img::destroy ()
176{ 229{
194 pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); 247 pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth);
195 ref = new pixref (w, h); 248 ref = new pixref (w, h);
196} 249}
197 250
198Picture 251Picture
199rxvt_img::src_picture () 252rxvt_img::picture ()
200{ 253{
201 Display *dpy = s->display->dpy; 254 Display *dpy = s->display->dpy;
202 255
203 XRenderPictureAttributes pa; 256 XRenderPictureAttributes pa;
204 pa.repeat = repeat; 257 pa.repeat = repeat;
223 pm = pm2; 276 pm = pm2;
224 ref = new pixref (ref->w, ref->h); 277 ref = new pixref (ref->w, ref->h);
225} 278}
226 279
227void 280void
228rxvt_img::fill (const rxvt_color &c) 281rxvt_img::fill (const rgba &c)
229{ 282{
230 XGCValues gcv; 283 XRenderColor rc = { c.r, c.g, c.b, c.a };
231 gcv.foreground = c; 284
232 GC gc = XCreateGC (s->display->dpy, pm, GCForeground, &gcv); 285 Display *dpy = s->display->dpy;
233 XFillRectangle (s->display->dpy, pm, gc, 0, 0, w, h); 286 Picture src = picture ();
234 XFreeGC (s->display->dpy, gc); 287 XRenderFillRectangle (dpy, PictOpSrc, src, &rc, 0, 0, w, h);
288 XRenderFreePicture (dpy, src);
289}
290
291void
292rxvt_img::add_alpha ()
293{
294 if (format->direct.alphaMask)
295 return;
296
297 Display *dpy = s->display->dpy;
298
299 rxvt_img *img = new rxvt_img (s, find_alpha_format_for (dpy, format), x, y, w, h, repeat);
300 img->alloc ();
301
302 Picture src = picture ();
303 Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
304
305 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h);
306
307 XRenderFreePicture (dpy, src);
308 XRenderFreePicture (dpy, dst);
309
310 ::swap (img->ref, ref);
311 ::swap (img->pm , pm );
312
313 delete img;
235} 314}
236 315
237static void 316static void
238get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params) 317get_gaussian_kernel (int radius, int width, rxvt_img::nv *kernel, XFixed *params)
239{ 318{
240 double sigma = radius / 2.0; 319 rxvt_img::nv sigma = radius / 2.0;
241 double scale = sqrt (2.0 * M_PI) * sigma; 320 rxvt_img::nv scale = sqrt (2.0 * M_PI) * sigma;
242 double sum = 0.0; 321 rxvt_img::nv sum = 0.0;
243 322
244 for (int i = 0; i < width; i++) 323 for (int i = 0; i < width; i++)
245 { 324 {
246 double x = i - width / 2; 325 rxvt_img::nv x = i - width / 2;
247 kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; 326 kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale;
248 sum += kernel[i]; 327 sum += kernel[i];
249 } 328 }
250 329
251 params[0] = XDoubleToFixed (width); 330 params[0] = XDoubleToFixed (width);
261 if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) 340 if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV))
262 return clone (); 341 return clone ();
263 342
264 Display *dpy = s->display->dpy; 343 Display *dpy = s->display->dpy;
265 int size = max (rh, rv) * 2 + 1; 344 int size = max (rh, rv) * 2 + 1;
266 double *kernel = (double *)malloc (size * sizeof (double)); 345 nv *kernel = (nv *)malloc (size * sizeof (nv));
267 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); 346 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
268 rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); 347 rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
269 img->alloc (); 348 img->alloc ();
270 349
271 XRenderPictureAttributes pa; 350 XRenderPictureAttributes pa;
309 w, h); 388 w, h);
310 } 389 }
311 390
312 free (kernel); 391 free (kernel);
313 free (params); 392 free (params);
393
314 XRenderFreePicture (dpy, src); 394 XRenderFreePicture (dpy, src);
315 XRenderFreePicture (dpy, dst); 395 XRenderFreePicture (dpy, dst);
316 XRenderFreePicture (dpy, tmp); 396 XRenderFreePicture (dpy, tmp);
317 397
318 return img; 398 return img;
392 if (r < 0 || g < 0 || b < 0 || a < 0) 472 if (r < 0 || g < 0 || b < 0 || a < 0)
393 rxvt_fatal ("rxvt_img::contrast does not support negative values.\n"); 473 rxvt_fatal ("rxvt_img::contrast does not support negative values.\n");
394 474
395 rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); 475 rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
396 img->alloc (); 476 img->alloc ();
397 477 img->fill (rgba (0, 0, 0, 0));
398 {
399 rxvt_color empty;
400 empty.set (s, rgba (0, 0, 0, 0));
401 img->fill (empty);
402 }
403 478
404 // premultiply (yeah, these are not exact, sue me or fix it) 479 // premultiply (yeah, these are not exact, sue me or fix it)
405 r = (r * (a >> 8)) >> 8; 480 r = (r * (a >> 8)) >> 8;
406 g = (g * (a >> 8)) >> 8; 481 g = (g * (a >> 8)) >> 8;
407 b = (b * (a >> 8)) >> 8; 482 b = (b * (a >> 8)) >> 8;
408 483
409 Display *dpy = s->display->dpy; 484 Display *dpy = s->display->dpy;
410 485
411 Picture src = src_picture (); 486 Picture src = picture ();
412 Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); 487 Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
413 Picture mul = create_xrender_mask (dpy, pm, True, True); 488 Picture mul = create_xrender_mask (dpy, pm, True, True);
414 489
415 //TODO: this operator does not yet implement some useful contrast 490 //TODO: this operator does not yet implement some useful contrast
416 while (r | g | b | a) 491 while (r | g | b | a)
433 ::swap (img->pm , pm ); 508 ::swap (img->pm , pm );
434 509
435 delete img; 510 delete img;
436} 511}
437 512
513void
514rxvt_img::draw (rxvt_img *img, int op, nv mask)
515{
516 unshare ();
517
518 Display *dpy = s->display->dpy;
519 Picture src = img->picture ();
520 Picture dst = picture ();
521 Picture mask_p = 0;
522
523 if (mask != 1.)
524 {
525 mask_p = create_xrender_mask (dpy, img->pm, False, False);
526 XRenderColor mask_c = { 0, 0, 0, float_to_component (mask) };
527 XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1);
528 }
529
530 XRenderComposite (dpy, op, src, mask_p, dst, x - img->x, y - img->y, 0, 0, 0, 0, w, h);
531
532 XRenderFreePicture (dpy, src);
533 XRenderFreePicture (dpy, dst);
534
535 if (mask_p)
536 XRenderFreePicture (dpy, mask_p);
537}
538
438rxvt_img * 539rxvt_img *
439rxvt_img::clone () 540rxvt_img::clone ()
440{ 541{
441 return new rxvt_img (*this); 542 return new rxvt_img (*this);
442}
443
444static XRenderPictFormat *
445find_alpha_format_for (Display *dpy, XRenderPictFormat *format)
446{
447 if (format->direct.alphaMask)
448 return format; // already has alpha
449
450 // try to find a suitable alpha format, one bit alpha is enough for our purposes
451 if (format->type == PictTypeDirect)
452 for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n)
453 if (f->direct.alphaMask
454 && f->type == PictTypeDirect
455 && ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask )
456 && ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask)
457 && ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask ))
458 return f;
459
460 // should be a very good fallback
461 return XRenderFindStandardFormat (dpy, PictStandardARGB32);
462} 543}
463 544
464rxvt_img * 545rxvt_img *
465rxvt_img::reify () 546rxvt_img::reify ()
466{ 547{
475 && repeat == RepeatNone; // and we have no good pixels to fill with 556 && repeat == RepeatNone; // and we have no good pixels to fill with
476 557
477 rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat); 558 rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat);
478 img->alloc (); 559 img->alloc ();
479 560
480 Picture src = src_picture (); 561 Picture src = picture ();
481 Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); 562 Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
482 563
483 if (alpha) 564 if (alpha)
484 { 565 {
485 XRenderColor rc = { 0, 0, 0, 0 }; 566 XRenderColor rc = { 0, 0, 0, 0 };
486 XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles 567 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); 568 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, x, y, ref->w, ref->h);
488 } 569 }
489 else 570 else
490 XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, w, h); 571 XRenderComposite (dpy, PictOpSrc, src, None, dst, -x, -y, 0, 0, 0, 0, w, h);
491 572
492 XRenderFreePicture (dpy, src); 573 XRenderFreePicture (dpy, src);
493 XRenderFreePicture (dpy, dst); 574 XRenderFreePicture (dpy, dst);
494 575
495 return img; 576 return img;
498rxvt_img * 579rxvt_img *
499rxvt_img::sub_rect (int x, int y, int width, int height) 580rxvt_img::sub_rect (int x, int y, int width, int height)
500{ 581{
501 rxvt_img *img = clone (); 582 rxvt_img *img = clone ();
502 583
503 img->x += x; 584 img->x -= x;
504 img->y += y; 585 img->y -= y;
505 586
506 if (w != width || h != height) 587 if (w != width || h != height)
507 { 588 {
508 img->w = width; 589 img->w = width;
509 img->h = height; 590 img->h = height;
514 } 595 }
515 596
516 return img; 597 return img;
517} 598}
518 599
519rxvt_img * 600static void
520rxvt_img::transform (int new_width, int new_height, double matrix[9]) 601mat_invert (rxvt_img::nv mat[3][3], rxvt_img::nv (&inv)[3][3])
521{ 602{
603 rxvt_img::nv s0 = mat [2][2] * mat [1][1] - mat [2][1] * mat [1][2];
604 rxvt_img::nv s1 = mat [2][1] * mat [0][2] - mat [2][2] * mat [0][1];
605 rxvt_img::nv s2 = mat [1][2] * mat [0][1] - mat [1][1] * mat [0][2];
606
607 rxvt_img::nv invdet = 1. / (mat [0][0] * s0 + mat [1][0] * s1 + mat [2][0] * s2);
608
609 inv [0][0] = invdet * s0;
610 inv [0][1] = invdet * s1;
611 inv [0][2] = invdet * s2;
612
613 inv [1][0] = invdet * (mat [2][0] * mat [1][2] - mat [2][2] * mat [1][0]);
614 inv [1][1] = invdet * (mat [2][2] * mat [0][0] - mat [2][0] * mat [0][2]);
615 inv [1][2] = invdet * (mat [1][0] * mat [0][2] - mat [1][2] * mat [0][0]);
616
617 inv [2][0] = invdet * (mat [2][1] * mat [1][0] - mat [2][0] * mat [1][1]);
618 inv [2][1] = invdet * (mat [2][0] * mat [0][1] - mat [2][1] * mat [0][0]);
619 inv [2][2] = invdet * (mat [1][1] * mat [0][0] - mat [1][0] * mat [0][1]);
620}
621
622static rxvt_img::nv
623mat_apply (rxvt_img::nv mat[3][3], int i, rxvt_img::nv x, rxvt_img::nv y)
624{
625 rxvt_img::nv v = mat [i][0] * x + mat [i][1] * y + mat [i][2];
626 rxvt_img::nv w = mat [2][0] * x + mat [2][1] * y + mat [2][2];
627
628 return v * (1. / w);
629}
630
631rxvt_img *
632rxvt_img::transform (nv matrix[3][3])
633{
634 // calculate new pixel bounding box coordinates
635 nv rmin[2], rmax[2];
636
637 for (int i = 0; i < 2; ++i)
638 {
639 nv v;
640 v = mat_apply (matrix, i, 0+x, 0+y); rmin [i] = rmax [i] = v;
641 v = mat_apply (matrix, i, w+x, 0+y); min_it (rmin [i], v); max_it (rmax [i], v);
642 v = mat_apply (matrix, i, 0+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v);
643 v = mat_apply (matrix, i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v);
644 }
645
646 // TODO: adjust matrix for subpixel accuracy
647 int dx = floor (rmin [0]);
648 int dy = floor (rmin [1]);
649
650 int new_width = ceil (rmax [0] - dx);
651 int new_height = ceil (rmax [1] - dy);
652
653 nv inv[3][3];
654 mat_invert (matrix, inv);
655
522 rxvt_img *img = new rxvt_img (s, format, 0, 0, new_width, new_height, repeat); 656 rxvt_img *img = new rxvt_img (s, format, dx, dy, new_width, new_height, repeat);
523 img->alloc (); 657 img->alloc ();
524 658
525 Display *dpy = s->display->dpy; 659 Display *dpy = s->display->dpy;
526 Picture src = src_picture (); 660 Picture src = picture ();
527 Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); 661 Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0);
528 662
529 XTransform xfrm; 663 XTransform xfrm;
530 664
531 for (int i = 0; i < 3; ++i) 665 for (int i = 0; i < 3; ++i)
532 for (int j = 0; j < 3; ++j) 666 for (int j = 0; j < 3; ++j)
533 xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]); 667 xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]);
534
535 xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO
536 xfrm.matrix [1][2] -= XDoubleToFixed (y);
537 668
538 XRenderSetPictureFilter (dpy, src, "good", 0, 0); 669 XRenderSetPictureFilter (dpy, src, "good", 0, 0);
539 XRenderSetPictureTransform (dpy, src, &xfrm); 670 XRenderSetPictureTransform (dpy, src, &xfrm);
540 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height); 671 XRenderComposite (dpy, PictOpSrc, src, None, dst, dx, dy, 0, 0, 0, 0, new_width, new_height);
541 672
542 XRenderFreePicture (dpy, src); 673 XRenderFreePicture (dpy, src);
543 XRenderFreePicture (dpy, dst); 674 XRenderFreePicture (dpy, dst);
544 675
545 return img; 676 return img;
549rxvt_img::scale (int new_width, int new_height) 680rxvt_img::scale (int new_width, int new_height)
550{ 681{
551 if (w == new_width && h == new_height) 682 if (w == new_width && h == new_height)
552 return clone (); 683 return clone ();
553 684
554 double matrix[9] = { 685 nv matrix[3][3] = {
555 w / (double)new_width, 0, 0, 686 { new_width / (nv)w, 0, 0 },
556 0, h / (double)new_height, 0, 687 { 0, new_height / (nv)h, 0 },
557 0, 0, 1 688 { 0, 0, 1 }
558 }; 689 };
559 690
560 int old_repeat_mode = repeat; 691 int old_repeat_mode = repeat;
561 repeat = RepeatPad; // not right, but xrender can't proeprly scale it seems 692 repeat = RepeatPad; // not right, but xrender can't properly scale it seems
562 693
563 rxvt_img *img = transform (new_width, new_height, matrix); 694 rxvt_img *img = transform (matrix);
564 695
565 repeat = old_repeat_mode; 696 repeat = old_repeat_mode;
566 img->repeat = repeat; 697 img->repeat = repeat;
567 698
568 return img; 699 return img;
569} 700}
570 701
571rxvt_img * 702rxvt_img *
572rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi) 703rxvt_img::rotate (int cx, int cy, nv phi)
573{ 704{
574 double s = sin (phi); 705 nv s = sin (phi);
575 double c = cos (phi); 706 nv c = cos (phi);
576 707
577 double matrix[9] = { 708 nv matrix[3][3] = {
578 c, -s, -c * x + s * y + x, 709 { c, -s, cx - c * cx + s * cy + 200 },
579 s, c, -s * x - c * y + y, 710 { s, c, cy - s * cx - c * cy },
580 0, 0, 1 711 { 0, 0, 1 }
712 //{ c, -s, 0 },
713 //{ s, c, 0 },
714 //{ 0, 0, 1 }
581 }; 715 };
582 716
583 return transform (new_width, new_height, matrix); 717 //move (-cx, -cy);
584} 718 rxvt_img *img = transform (matrix);
719 //move ( cx, cy);
720 //img->move (cx, cy);
585 721
722 return img;
723}
724
586rxvt_img * 725rxvt_img *
587rxvt_img::convert_format (XRenderPictFormat *new_format, const rxvt_color &bg) 726rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg)
588{ 727{
589 if (new_format == format) 728 if (new_format == format)
590 return clone (); 729 return clone ();
591 730
592 rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat); 731 rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat);
593 img->alloc (); 732 img->alloc ();
594 733
595 Display *dpy = s->display->dpy; 734 Display *dpy = s->display->dpy;
596 Picture src = src_picture (); 735 Picture src = picture ();
597 Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); 736 Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0);
598 int op = PictOpSrc; 737 int op = PictOpSrc;
599 738
600 if (format->direct.alphaMask && !new_format->direct.alphaMask) 739 if (format->direct.alphaMask && !new_format->direct.alphaMask)
601 { 740 {
602 // does it have to be that complicated 741 // 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 }; 742 XRenderColor rc = { bg.r, bg.g, bg.b, bg.a };
607 XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h); 743 XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);
608 744
609 op = PictOpOver; 745 op = PictOpOver;
610 } 746 }
611 747
616 752
617 return img; 753 return img;
618} 754}
619 755
620rxvt_img * 756rxvt_img *
621rxvt_img::blend (rxvt_img *img, double factor) 757rxvt_img::blend (rxvt_img *img, nv factor)
622{ 758{
623 rxvt_img *img2 = clone (); 759 rxvt_img *img2 = clone ();
624 Display *dpy = s->display->dpy; 760 Display *dpy = s->display->dpy;
625 Picture src = img->src_picture (); 761 Picture src = img->picture ();
626 Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0); 762 Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0);
627 Picture mask = create_xrender_mask (dpy, img->pm, False, False); 763 Picture mask = create_xrender_mask (dpy, img->pm, False, False);
628 764
629 XRenderColor mask_c; 765 XRenderColor mask_c;
630 766

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