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/cvs/rxvt-unicode/src/rxvtimg.C
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Comparing rxvt-unicode/src/rxvtimg.C (file contents):
Revision 1.55 by root, Thu Jun 7 20:26:21 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;
… …
121 uint8_t g = *src++; 114 uint8_t g = *src++;
122 uint8_t b = *src++; 115 uint8_t b = *src++;
123 116
124 uint32_t v = (r << 16) | (g << 8) | b; 117 uint32_t v = (r << 16) | (g << 8) | b;
125 118
126 if (ecb_big_endian ()) 119 if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch)
127 v = ecb_bswap32 (v);
128
129 if (byte_order_mismatch)
130 v = ecb_bswap32 (v); 120 v = ecb_bswap32 (v);
131 121
132 *dst++ = v; 122 *dst++ = v;
133 } 123 }
134 else 124 else
135 for (int x = 0; x < width; x++) 125 for (int x = 0; x < width; x++)
136 { 126 {
137 uint32_t v = *(uint32_t *)src; src += 4; 127 uint32_t v = *(uint32_t *)src; src += 4;
138 128
139 if (ecb_little_endian ()) 129 if (ecb_big_endian ())
140 v = ecb_bswap32 (v); 130 v = ecb_bswap32 (v);
141 131
142 v = ecb_rotr32 (v, 8); 132 v = ecb_rotl32 (v, 8); // abgr to bgra
143 133
144 if (byte_order_mismatch) 134 if (!byte_order_mismatch)
145 v = ecb_bswap32 (v); 135 v = ecb_bswap32 (v);
146 136
147 *dst++ = v; 137 *dst++ = v;
148 } 138 }
149 139
… …
219rxvt_img::unshare () 209rxvt_img::unshare ()
220{ 210{
221 if (ref->cnt == 1 && ref->ours) 211 if (ref->cnt == 1 && ref->ours)
222 return; 212 return;
223 213
224 //TODO: maybe should reify instead
225 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);
226 GC gc = XCreateGC (s->display->dpy, pm, 0, 0); 215 GC gc = XCreateGC (s->display->dpy, pm, 0, 0);
227 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);
228 XFreeGC (s->display->dpy, gc); 217 XFreeGC (s->display->dpy, gc);
229 218
… …
275 double *kernel = (double *)malloc (size * sizeof (double)); 264 double *kernel = (double *)malloc (size * sizeof (double));
276 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); 265 XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed));
277 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);
278 img->alloc (); 267 img->alloc ();
279 268
280 Picture src = src_picture ();
281
282 XRenderPictureAttributes pa; 269 XRenderPictureAttributes pa;
283 pa.repeat = RepeatPad; 270 pa.repeat = RepeatPad;
284 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);
285 273
286 Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth); 274 Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth);
287 Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa); 275 Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa);
288 XFreePixmap (dpy, tmp_pm); 276 XFreePixmap (dpy, tmp_pm);
289 277
… …
305 293
306 size = rv * 2 + 1; 294 size = rv * 2 + 1;
307 get_gaussian_kernel (rv, size, kernel, params); 295 get_gaussian_kernel (rv, size, kernel, params);
308 ::swap (params[0], params[1]); 296 ::swap (params[0], params[1]);
309 297
310 XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); 298 XRenderSetPictureFilter (dpy, tmp, FilterConvolution, params, size+2);
311 XRenderComposite (dpy, 299 XRenderComposite (dpy,
312 PictOpSrc, 300 PictOpSrc,
313 tmp, 301 tmp,
314 None, 302 None,
315 dst, 303 dst,
… …
341 XFreePixmap (dpy, pixmap); 329 XFreePixmap (dpy, pixmap);
342 330
343 return mask; 331 return mask;
344} 332}
345 333
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
346void 353void
347rxvt_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)
348{ 355{
356 unshare ();
357
349 Display *dpy = s->display->dpy; 358 Display *dpy = s->display->dpy;
350 Picture src = create_xrender_mask (dpy, pm, True);
351 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); 359 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
352 360
361 while (r | g | b | a)
362 {
363 unsigned short xr, xg, xb, xa;
353 XRenderColor mask_c; 364 XRenderColor mask_c;
354 mask_c.red = r; 365
355 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))
356 mask_c.blue = b;
357 mask_c.alpha = a;
358 XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); 367 XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h);
359 368
360 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 }
361 381
362 XRenderFreePicture (dpy, src); 382
363 XRenderFreePicture (dpy, dst); 383 XRenderFreePicture (dpy, dst);
364} 384}
365 385
366void 386void
367rxvt_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)
368{ 388{
369 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");
370 return; 392 return;
393 }
394
395 unshare ();
371 396
372 Display *dpy = s->display->dpy; 397 Display *dpy = s->display->dpy;
373 Picture src = create_xrender_mask (dpy, pm, True); 398 Picture src = create_xrender_mask (dpy, pm, True);
374 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); 399 Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0);
375 400
… …
418 if (x == 0 && y == 0 && w == ref->w && h == ref->h) 443 if (x == 0 && y == 0 && w == ref->w && h == ref->h)
419 return clone (); 444 return clone ();
420 445
421 Display *dpy = s->display->dpy; 446 Display *dpy = s->display->dpy;
422 447
448 // add an alpha channel if...
423 bool alpha = !format->direct.alphaMask 449 bool alpha = !format->direct.alphaMask // pixmap has none yet
424 && (x || y) 450 && (x || y) // we need one because of non-zero offset
425 && repeat == RepeatNone; 451 && repeat == RepeatNone; // and we have no good pixels to fill with
426 452
427 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);
428 img->alloc (); 454 img->alloc ();
429 455
430 Picture src = src_picture (); 456 Picture src = src_picture ();
… …
480 506
481 for (int i = 0; i < 3; ++i) 507 for (int i = 0; i < 3; ++i)
482 for (int j = 0; j < 3; ++j) 508 for (int j = 0; j < 3; ++j)
483 xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]); 509 xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]);
484 510
485#if 0
486 xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO 511 xfrm.matrix [0][2] -= XDoubleToFixed (x);//TODO
487 xfrm.matrix [1][2] -= XDoubleToFixed (y); 512 xfrm.matrix [1][2] -= XDoubleToFixed (y);
488#endif
489 513
490 XRenderSetPictureFilter (dpy, src, "good", 0, 0); 514 XRenderSetPictureFilter (dpy, src, "good", 0, 0);
491 XRenderSetPictureTransform (dpy, src, &xfrm); 515 XRenderSetPictureTransform (dpy, src, &xfrm);
492 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);
493 517

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