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Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.49 by root, Thu Jun 7 19:24:13 2012 UTC vs.
Revision 1.68 by root, Sat Jun 9 11:14:35 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;
… …
71 64
72 // since we require rgb24/argb32 formats from xrender we assume 65 // since we require rgb24/argb32 formats from xrender we assume
73 // 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
74 int depth = gdk_pixbuf_get_has_alpha (pb) ? 32 : 24; 67 int depth = gdk_pixbuf_get_has_alpha (pb) ? 32 : 24;
75 68
69 int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst;
70
76 XImage xi; 71 XImage xi;
77 72
78 xi.width = width; 73 xi.width = width;
79 xi.height = height; 74 xi.height = height;
80 xi.xoffset = 0; 75 xi.xoffset = 0;
81 xi.format = ZPixmap; 76 xi.format = ZPixmap;
82 xi.byte_order = MSBFirst; // maybe go for host byte order, because servers are usually local? 77 xi.byte_order = ImageByteOrder (dpy);
83 xi.bitmap_unit = 32; 78 xi.bitmap_unit = 0; //XY only, unused
84 xi.bitmap_bit_order = MSBFirst; 79 xi.bitmap_bit_order = 0; //XY only, unused
85 xi.bitmap_pad = BitmapPad (dpy); 80 xi.bitmap_pad = BitmapPad (dpy);
86 xi.depth = depth; 81 xi.depth = depth;
87 xi.bytes_per_line = 0; 82 xi.bytes_per_line = 0;
88 xi.bits_per_pixel = 32; 83 xi.bits_per_pixel = 32; //Z only
89 xi.red_mask = 0x00ff0000; 84 xi.red_mask = 0x00000000; //Z only, unused
90 xi.green_mask = 0x0000ff00; 85 xi.green_mask = 0x00000000; //Z only, unused
91 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;
92 90
93 if (!XInitImage (&xi)) 91 if (!XInitImage (&xi))
94 rxvt_fatal ("unable to initialise ximage, please report.\n"); 92 rxvt_fatal ("unable to initialise ximage, please report.\n");
95 93
96 if (height > INT_MAX / xi.bytes_per_line) 94 if (height > INT_MAX / xi.bytes_per_line)
… …
104 unsigned char *row = gdk_pixbuf_get_pixels (pb); 102 unsigned char *row = gdk_pixbuf_get_pixels (pb);
105 char *line = xi.data; 103 char *line = xi.data;
106 104
107 for (int y = 0; y < height; y++) 105 for (int y = 0; y < height; y++)
108 { 106 {
109 unsigned char r, g, b, a;
110 unsigned char *data = row; 107 unsigned char *src = row;
108 uint32_t *dst = (uint32_t *)line;
111 109
112 if (depth == 24) 110 if (depth == 24)
113 for (int x = 0; x < width; x++) 111 for (int x = 0; x < width; x++)
114 { 112 {
115 r = *data++; 113 uint8_t r = *src++;
116 g = *data++; 114 uint8_t g = *src++;
117 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
118 *line++ = 0; 122 *dst++ = v;
119 *line++ = r;
120 *line++ = g;
121 *line++ = b;
122 } 123 }
123 else 124 else
124 for (int x = 0; x < width; x++) 125 for (int x = 0; x < width; x++)
125 { 126 {
126 uint32_t v = *(uint32_t *)data; data += 4; 127 uint32_t v = *(uint32_t *)src; src += 4;
127 v = ecb_big_endian () ? ecb_rotr32 (v, 8) : ecb_rotl32 (v, 8); 128
128 *(uint32_t *)line = x; line += 4; 129 if (ecb_big_endian ())
130 v = ecb_bswap32 (v);
131
132 v = ecb_rotl32 (v, 8); // abgr to bgra
133
134 if (!byte_order_mismatch)
135 v = ecb_bswap32 (v);
136
137 *dst++ = v;
129 } 138 }
130 139
131 row += rowstride; 140 row += rowstride;
141 line += xi.bytes_per_line;
132 } 142 }
133 143
134 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);
135 img->alloc (); 145 img->alloc ();
136 146
… …
199rxvt_img::unshare () 209rxvt_img::unshare ()
200{ 210{
201 if (ref->cnt == 1 && ref->ours) 211 if (ref->cnt == 1 && ref->ours)
202 return; 212 return;
203 213
204 //TODO: maybe should reify instead
205 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);
206 GC gc = XCreateGC (s->display->dpy, pm, 0, 0); 215 GC gc = XCreateGC (s->display->dpy, pm, 0, 0);
207 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);
208 XFreeGC (s->display->dpy, gc); 217 XFreeGC (s->display->dpy, gc);
209 218
… …
255 double *kernel = (double *)malloc (size * sizeof (double)); 264 double *kernel = (double *)malloc (size * sizeof (double));
256 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); 265 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
257 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);
258 img->alloc (); 267 img->alloc ();
259 268
260 Picture src = src_picture ();
261
262 XRenderPictureAttributes pa; 269 XRenderPictureAttributes pa;
263 pa.repeat = RepeatPad; 270 pa.repeat = RepeatPad;
264 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);
265 273
266 Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth); 274 Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth);
267 Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa); 275 Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa);
268 XFreePixmap (dpy, tmp_pm); 276 XFreePixmap (dpy, tmp_pm);
269 277
… …
285 293
286 size = rv * 2 + 1; 294 size = rv * 2 + 1;
287 get_gaussian_kernel (rv, size, kernel, params); 295 get_gaussian_kernel (rv, size, kernel, params);
288 ::swap (params[0], params[1]); 296 ::swap (params[0], params[1]);
289 297
290 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); 298 XRenderSetPictureFilter (dpy, tmp, FilterConvolution, params, size+2);
291 XRenderComposite (dpy, 299 XRenderComposite (dpy,
292 PictOpSrc, 300 PictOpSrc,
293 tmp, 301 tmp,
294 None, 302 None,
295 dst, 303 dst,
… …
321 XFreePixmap (dpy, pixmap); 329 XFreePixmap (dpy, pixmap);
322 330
323 return mask; 331 return mask;
324} 332}
325 333
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
326void 353void
327rxvt_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)
328{ 355{
356 unshare ();
357
329 Display *dpy = s->display->dpy; 358 Display *dpy = s->display->dpy;
330 Picture src = create_xrender_mask (dpy, pm, True);
331 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); 359 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
332 360
361 while (r | g | b | a)
362 {
363 unsigned short xr, xg, xb, xa;
333 XRenderColor mask_c; 364 XRenderColor mask_c;
334 mask_c.red = r; 365
335 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))
336 mask_c.blue = b;
337 mask_c.alpha = a;
338 XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); 367 XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
339 368
340 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 mask_c.red = -mask_c.red;
374 mask_c.green = -mask_c.green;
375 mask_c.blue = -mask_c.blue;
376 mask_c.alpha = -mask_c.alpha;
377 XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
378 XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h);
379 }
380 }
341 381
342 XRenderFreePicture (dpy, src); 382
343 XRenderFreePicture (dpy, dst); 383 XRenderFreePicture (dpy, dst);
344} 384}
345 385
346void 386void
347rxvt_img::contrast (unsigned short r, unsigned short g, unsigned short b, unsigned short a) 387rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a)
348{ 388{
349 if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL)) 389 if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL))
390 {
391 rxvt_warn ("rxvt_img::contrast operation not supported on this display, RENDER extension too old.\n");
350 return; 392 return;
393 }
394
395 unshare ();
351 396
352 Display *dpy = s->display->dpy; 397 Display *dpy = s->display->dpy;
353 Picture src = create_xrender_mask (dpy, pm, True); 398 Picture src = create_xrender_mask (dpy, pm, True);
354 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); 399 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
355 400
… …
398 if (x == 0 && y == 0 && w == ref->w && h == ref->h) 443 if (x == 0 && y == 0 && w == ref->w && h == ref->h)
399 return clone (); 444 return clone ();
400 445
401 Display *dpy = s->display->dpy; 446 Display *dpy = s->display->dpy;
402 447
448 // add an alpha channel if...
403 bool alpha = !format->direct.alphaMask 449 bool alpha = !format->direct.alphaMask // pixmap has none yet
404 && (x || y) 450 && (x || y) // we need one because of non-zero offset
405 && repeat == RepeatNone; 451 && repeat == RepeatNone; // and we have no good pixels to fill with
406 452
407 rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat); 453 rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat);
408 img->alloc (); 454 img->alloc ();
409 455
410 Picture src = src_picture (); 456 Picture src = src_picture ();
… …
460 506
461 for (int i = 0; i < 3; ++i) 507 for (int i = 0; i < 3; ++i)
462 for (int j = 0; j < 3; ++j) 508 for (int j = 0; j < 3; ++j)
463 xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]); 509 xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);
464 510
465#if 0
466 xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO 511 xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO
467 xfrm.matrix [1][2] -= XDoubleToFixed (y); 512 xfrm.matrix [1][2] -= XDoubleToFixed (y);
468#endif
469 513
470 XRenderSetPictureFilter (dpy, src, "good", 0, 0); 514 XRenderSetPictureFilter (dpy, src, "good", 0, 0);
471 XRenderSetPictureTransform (dpy, src, &xfrm); 515 XRenderSetPictureTransform (dpy, src, &xfrm);
472 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height); 516 XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height);
473 517

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