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/cvs/rxvt-unicode/src/rxvtimg.C
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Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.47 by root, Thu Jun 7 19:06:26 2012 UTC vs.
Revision 1.67 by root, Sat Jun 9 11:13:14 2012 UTC

… …
13rxvt_img::rxvt_img (const rxvt_img &img) 13rxvt_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) 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{ 15{
16 ++ref->cnt; 16 ++ref->cnt;
17} 17}
18
19#if 0
20rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height, Pixmap pixmap)
21: s(screen), x(0), y(0), w(width), h(height), format(format), repeat(RepeatNormal), shared(false), pm(pixmap)
22{
23}
24#endif
25 18
26rxvt_img * 19rxvt_img *
27rxvt_img::new_from_root (rxvt_screen *s) 20rxvt_img::new_from_root (rxvt_screen *s)
28{ 21{
29 Display *dpy = s->display->dpy; 22 Display *dpy = s->display->dpy;
… …
59} 52}
60 53
61rxvt_img * 54rxvt_img *
62rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) 55rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb)
63{ 56{
57 Display *dpy = s->display->dpy;
58
64 int width = gdk_pixbuf_get_width (pb); 59 int width = gdk_pixbuf_get_width (pb);
65 int height = gdk_pixbuf_get_height (pb); 60 int height = gdk_pixbuf_get_height (pb);
66 61
67 if (width > 32767 || height > 32767) // well, we *could* upload in chunks 62 if (width > 32767 || height > 32767) // well, we *could* upload in chunks
68 rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big (maximum size 32768x32768).\n"); 63 rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big (maximum size 32768x32768).\n");
69 64
70 // since we require rgb24/argb32 formats from xrender we assume 65 // since we require rgb24/argb32 formats from xrender we assume
71 // that both 24 and 32 bpp MUST be supported by any screen that supports xrender 66 // that both 24 and 32 bpp MUST be supported by any screen that supports xrender
72 int depth = gdk_pixbuf_get_has_alpha (pb) ? 32 : 24; 67 int depth = gdk_pixbuf_get_has_alpha (pb) ? 32 : 24;
68
69 int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
73 70
74 XImage xi; 71 XImage xi;
75 72
76 xi.width = width; 73 xi.width = width;
77 xi.height = height; 74 xi.height = height;
78 xi.xoffset = 0; 75 xi.xoffset = 0;
79 xi.format = ZPixmap; 76 xi.format = ZPixmap;
80 xi.byte_order = MSBFirst; // maybe go for host byte order, because servers are usually local? 77 xi.byte_order = ImageByteOrder (dpy);
81 xi.bitmap_unit = 32; 78 xi.bitmap_unit = 0; //XY only, unused
82 xi.bitmap_bit_order = MSBFirst; 79 xi.bitmap_bit_order = 0; //XY only, unused
83 xi.bitmap_pad = 32; 80 xi.bitmap_pad = BitmapPad (dpy);
84 xi.depth = depth; 81 xi.depth = depth;
85 xi.bytes_per_line = 0; 82 xi.bytes_per_line = 0;
86 xi.bits_per_pixel = 32; 83 xi.bits_per_pixel = 32; //Z only
87 xi.red_mask = 0x00ff0000; 84 xi.red_mask = 0x00000000; //Z only, unused
88 xi.green_mask = 0x0000ff00; 85 xi.green_mask = 0x00000000; //Z only, unused
89 xi.blue_mask = 0x000000ff; 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 90
91 if (!XInitImage (&xi)) 91 if (!XInitImage (&xi))
92 rxvt_fatal ("unable to initialise ximage, please report.\n"); 92 rxvt_fatal ("unable to initialise ximage, please report.\n");
93 93
94 if (height > INT_MAX / xi.bytes_per_line) 94 if (height > INT_MAX / xi.bytes_per_line)
… …
102 unsigned char *row = gdk_pixbuf_get_pixels (pb); 102 unsigned char *row = gdk_pixbuf_get_pixels (pb);
103 char *line = xi.data; 103 char *line = xi.data;
104 104
105 for (int y = 0; y < height; y++) 105 for (int y = 0; y < height; y++)
106 { 106 {
107 unsigned char r, g, b, a;
108 unsigned char *data = row; 107 unsigned char *src = row;
108 uint32_t *dst = (uint32_t *)line;
109 109
110 if (depth == 24) 110 if (depth == 24)
111 for (int x = 0; x < width; x++) 111 for (int x = 0; x < width; x++)
112 { 112 {
113 r = *data++; 113 uint8_t r = *src++;
114 g = *data++; 114 uint8_t g = *src++;
115 b = *data++; 115 uint8_t b = *src++;
116
117 uint32_t v = (r << 16) | (g << 8) | b;
118
119 if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch)
120 v = ecb_bswap32 (v);
121
116 *line++ = 0; 122 *dst++ = v;
117 *line++ = r;
118 *line++ = g;
119 *line++ = b;
120 } 123 }
121 else 124 else
122 for (int x = 0; x < width; x++) 125 for (int x = 0; x < width; x++)
123 { 126 {
124 r = *data++; 127 uint32_t v = *(uint32_t *)src; src += 4;
125 g = *data++; 128
126 b = *data++; 129 if (ecb_big_endian ())
127 a = *data++; 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
128 *line++ = a; 137 *dst++ = v;
129 *line++ = r;
130 *line++ = g;
131 *line++ = b;
132 } 138 }
133 139
134 row += rowstride; 140 row += rowstride;
141 line += xi.bytes_per_line;
135 } 142 }
136
137 Display *dpy = s->display->dpy;
138 143
139 rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, depth == 24 ? PictStandardRGB24 : PictStandardARGB32), 0, 0, width, height); 144 rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, depth == 24 ? PictStandardRGB24 : PictStandardARGB32), 0, 0, width, height);
140 img->alloc (); 145 img->alloc ();
141 146
142 GC gc = XCreateGC (dpy, img->pm, 0, 0); 147 GC gc = XCreateGC (dpy, img->pm, 0, 0);
… …
204rxvt_img::unshare () 209rxvt_img::unshare ()
205{ 210{
206 if (ref->cnt == 1 && ref->ours) 211 if (ref->cnt == 1 && ref->ours)
207 return; 212 return;
208 213
209 //TODO: maybe should reify instead
210 Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth); 214 Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth);
211 GC gc = XCreateGC (s->display->dpy, pm, 0, 0); 215 GC gc = XCreateGC (s->display->dpy, pm, 0, 0);
212 XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); 216 XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0);
213 XFreeGC (s->display->dpy, gc); 217 XFreeGC (s->display->dpy, gc);
214 218
… …
260 double *kernel = (double *)malloc (size * sizeof (double)); 264 double *kernel = (double *)malloc (size * sizeof (double));
261 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); 265 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
262 rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); 266 rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat);
263 img->alloc (); 267 img->alloc ();
264 268
265 Picture src = src_picture ();
266
267 XRenderPictureAttributes pa; 269 XRenderPictureAttributes pa;
268 pa.repeat = RepeatPad; 270 pa.repeat = RepeatPad;
269 Picture dst = XRenderCreatePicture (dpy, img->pm, format, CPRepeat, &pa); 271 Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa);
272 Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0);
270 273
271 Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth); 274 Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth);
272 Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa); 275 Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa);
273 XFreePixmap (dpy, tmp_pm); 276 XFreePixmap (dpy, tmp_pm);
274 277
… …
290 293
291 size = rv * 2 + 1; 294 size = rv * 2 + 1;
292 get_gaussian_kernel (rv, size, kernel, params); 295 get_gaussian_kernel (rv, size, kernel, params);
293 ::swap (params[0], params[1]); 296 ::swap (params[0], params[1]);
294 297
295 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); 298 XRenderSetPictureFilter (dpy, tmp, FilterConvolution, params, size+2);
296 XRenderComposite (dpy, 299 XRenderComposite (dpy,
297 PictOpSrc, 300 PictOpSrc,
298 tmp, 301 tmp,
299 None, 302 None,
300 dst, 303 dst,
… …
326 XFreePixmap (dpy, pixmap); 329 XFreePixmap (dpy, pixmap);
327 330
328 return mask; 331 return mask;
329} 332}
330 333
334static void
335extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc)
336{
337 int32_t x = clamp (c, cl0, cl1);
338 c -= x;
339 xc = x;
340}
341
342static bool
343extract (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)
344{
345 extract (cl0, cl1, r, xr);
346 extract (cl0, cl1, g, xg);
347 extract (cl0, cl1, b, xb);
348 extract (cl0, cl1, a, xa);
349
350 return xr | xg | xb | xa;
351}
352
331void 353void
332rxvt_img::brightness (unsigned short r, unsigned short g, unsigned short b, unsigned short a) 354rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a)
333{ 355{
356 unshare ();
357
334 Display *dpy = s->display->dpy; 358 Display *dpy = s->display->dpy;
335 Picture src = create_xrender_mask (dpy, pm, True);
336 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); 359 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
337 360
361 while (r | g | b | a)
362 {
363 unsigned short xr, xg, xb, xa;
338 XRenderColor mask_c; 364 XRenderColor mask_c;
339 mask_c.red = r; 365
340 mask_c.green = g; 366 if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
341 mask_c.blue = b;
342 mask_c.alpha = a;
343 XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); 367 XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
344 368
345 XRenderComposite (dpy, PictOpAdd, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); 369 if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha))
370 {
371 XRenderColor mask_w = { 65535, 65535, 65535, 65535 };
372 XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
373 XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
374 XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
375 }
376 }
346 377
347 XRenderFreePicture (dpy, src); 378
348 XRenderFreePicture (dpy, dst); 379 XRenderFreePicture (dpy, dst);
349} 380}
350 381
351void 382void
352rxvt_img::contrast (unsigned short r, unsigned short g, unsigned short b, unsigned short a) 383rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a)
353{ 384{
354 if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL)) 385 if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL))
386 {
387 rxvt_warn ("rxvt_img::contrast operation not supported on this display, RENDER extension too old.\n");
355 return; 388 return;
389 }
390
391 unshare ();
356 392
357 Display *dpy = s->display->dpy; 393 Display *dpy = s->display->dpy;
358 Picture src = create_xrender_mask (dpy, pm, True); 394 Picture src = create_xrender_mask (dpy, pm, True);
359 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); 395 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
360 396
… …
403 if (x == 0 && y == 0 && w == ref->w && h == ref->h) 439 if (x == 0 && y == 0 && w == ref->w && h == ref->h)
404 return clone (); 440 return clone ();
405 441
406 Display *dpy = s->display->dpy; 442 Display *dpy = s->display->dpy;
407 443
444 // add an alpha channel if...
408 bool alpha = !format->direct.alphaMask 445 bool alpha = !format->direct.alphaMask // pixmap has none yet
409 && (x || y) 446 && (x || y) // we need one because of non-zero offset
410 && repeat == RepeatNone; 447 && repeat == RepeatNone; // and we have no good pixels to fill with
411 448
412 rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat); 449 rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat);
413 img->alloc (); 450 img->alloc ();
414 451
415 Picture src = src_picture (); 452 Picture src = src_picture ();
… …
465 502
466 for (int i = 0; i < 3; ++i) 503 for (int i = 0; i < 3; ++i)
467 for (int j = 0; j < 3; ++j) 504 for (int j = 0; j < 3; ++j)
468 xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]); 505 xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);
469 506
470#if 0
471 xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO 507 xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO
472 xfrm.matrix [1][2] -= XDoubleToFixed (y); 508 xfrm.matrix [1][2] -= XDoubleToFixed (y);
473#endif
474 509
475 XRenderSetPictureFilter (dpy, src, "good", 0, 0); 510 XRenderSetPictureFilter (dpy, src, "good", 0, 0);
476 XRenderSetPictureTransform (dpy, src, &xfrm); 511 XRenderSetPictureTransform (dpy, src, &xfrm);
477 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height); 512 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height);
478 513

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