… | |
… | |
356 | unshare (); |
356 | unshare (); |
357 | |
357 | |
358 | Display *dpy = s->display->dpy; |
358 | Display *dpy = s->display->dpy; |
359 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
359 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
360 | |
360 | |
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361 | // loop should not be needed for brightness, as only -1..1 makes sense |
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362 | |
361 | while (r | g | b | a) |
363 | while (r | g | b | a) |
362 | { |
364 | { |
363 | unsigned short xr, xg, xb, xa; |
365 | unsigned short xr, xg, xb, xa; |
364 | XRenderColor mask_c; |
366 | XRenderColor mask_c; |
365 | |
367 | |
… | |
… | |
368 | |
370 | |
369 | if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
371 | if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
370 | { |
372 | { |
371 | XRenderColor mask_w = { 65535, 65535, 65535, 65535 }; |
373 | XRenderColor mask_w = { 65535, 65535, 65535, 65535 }; |
372 | XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
374 | XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
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375 | mask_c.red = -mask_c.red; |
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376 | mask_c.green = -mask_c.green; |
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377 | mask_c.blue = -mask_c.blue; |
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378 | mask_c.alpha = -mask_c.alpha; |
373 | XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
379 | XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
374 | XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
380 | XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
375 | } |
381 | } |
376 | } |
382 | } |
377 | |
383 | |