X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=local%2Fman%2Fcat.1%2Fblitspin.1;fp=local%2Fman%2Fcat.1%2Fblitspin.1;h=a87f77189506a088885498f7cc9f9abc39ecce43;hb=41fae2ad67bc37e31c4d967bae81e4f3f50fa55a;hp=0000000000000000000000000000000000000000;hpb=278c59e14c53fd412b734e699bd4f314f766f804;p=xscreensaver diff --git a/local/man/cat.1/blitspin.1 b/local/man/cat.1/blitspin.1 new file mode 100644 index 00000000..a87f7718 --- /dev/null +++ b/local/man/cat.1/blitspin.1 @@ -0,0 +1,198 @@ + + + +XScreenSaver(1) XScreenSaver(1) + + +NNAAMMEE + blitspin - rotate a bitmap in an interesting way + +SSYYNNOOPPSSIISS + bblliittssppiinn [-display _h_o_s_t_:_d_i_s_p_l_a_y_._s_c_r_e_e_n] [-foreground + _c_o_l_o_r] [-background _c_o_l_o_r] [-window] [-root] [-mono] + [-install] [-visual _v_i_s_u_a_l] [-bitmap _f_i_l_e_n_a_m_e] [-delay + _u_s_e_c_s] [-delay2 _u_s_e_c_s] + +DDEESSCCRRIIPPTTIIOONN + The _b_l_i_t_s_p_i_n program repeatedly rotates a bitmap by 90 + degrees by using logical operations: the bitmap is divided + into quadrants, and the quadrants are shifted clockwise. + Then the same thing is done again with progressively + smaller quadrants, except that all sub-quadrants of a + given size are rotated in parallel. So this takes + OO((1166**lloogg22((NN)))) blits of size NxN, with the limitation that + the image must be square, and the size must be a power of + 2. + +OOPPTTIIOONNSS + _b_l_i_t_s_p_i_n accepts the following options: + + --wwiinnddooww Draw on a newly-created window. This is the + default. + + --rroooott Draw on the root window. + + --mmoonnoo If on a color display, pretend we're on a + monochrome display. + + --iinnssttaallll + Install a private colormap for the window. + + --vviissuuaall _v_i_s_u_a_l + Specify which visual to use. Legal values are the + name of a visual class, or the id number (decimal + or hex) of a specific visual. + + --bbiittmmaapp _f_i_l_e_n_a_m_e + The file name of a bitmap to rotate. It need not + be square: it will be padded with the background + color. If unspecified or the string _(_d_e_f_a_u_l_t_), a + builtin bitmap is used. + + If support for the _X_P_M library was enabled at com- + pile-time, the specified file may be in _X_P_M format + as well as _X_B_M, and thus may be a color image. + + The **bbiittmmaappFFiilleePPaatthh resource will be searched if + the bitmap name is not a fully-qualified pathname. + + --ggrraabb--ssccrreeeenn + If this option is specified, then the image which + + + +X Version 11 24-Nov-97 1 + + + + + +XScreenSaver(1) XScreenSaver(1) + + + is spun will be grabbed from the portion of the + screen underlying the blitspin window. (Or, it + may come from an external video source: see + below.) + + + --ddeellaayy _m_i_c_r_o_s_e_c_o_n_d_s + How long to delay between steps of the rotation + process, in microseconds. Default is 500000, one- + half second. + + + --ddeellaayy22 _m_i_c_r_o_s_e_c_o_n_d_s + How long to delay between each 90-degree rotation, + in microseconds. Default is 500000, one-half sec- + ond. DDIISSPPLLAAYY to get the default host and display + number. + +RREESSOOUURRCCEESS + On some systems (currently, only SGIs), this program can, + instead of grabbing a desktop image, grab a frame of video + from an external camera and manipulate that instead. The + following resources control that. + + + ggrraabbVViiddeeooPPrroobbaabbiilliittyy (Float) + What portion of the time to grab video rather than + a screen image, between 0.0 and 1.0. Defaults to + 0.5, or half the time. + + vviiddeeooDDeevviiccee (Integer) + The number of the default video input device to + check first. If unspecified, the default camera + (from videopanel(1)) will be checked first. After + that, all other available video input devices will + be checked in order. + + The first one which produces a non-black image + will be used. If all images are black, the others + will be re-checked a few times before giving up + and falling back to simply grabbing a desktop + image (but note that this takes a few seconds, so + if you don't actually have any video sources + hooked up, you should consider turning off video + grabbing by setting ggrraabbVViiddeeooPPrroobbaabbiilliittyy to 0.0.) + + vviiddeeooGGaaiinn (Float) + The amount by which to brighten the grabbed image. + This defaults to 2.2. + +EENNVVIIRROONNMMEENNTT + XXEENNVVIIRROONNMMEENNTT to get the name of a resource file that over- + rides the global resources stored in the RESOURCE_MANAGER + property. + + + +X Version 11 24-Nov-97 2 + + + + + +XScreenSaver(1) XScreenSaver(1) + + +SSEEEE AALLSSOO + XX(1), xxssccrreeeennssaavveerr(1) + +CCOOPPYYRRIIGGHHTT + Copyright (C) 1992, 1993, 1997 by Jamie Zawinski. Permis- + sion to use, copy, modify, distribute, and sell this soft- + ware and its documentation for any purpose is hereby + granted without fee, provided that the above copyright + notice appear in all copies and that both that copyright + notice and this permission notice appear in supporting + documentation. No representations are made about the + suitability of this software for any purpose. It is pro- + vided "as is" without express or implied warranty. + +AAUUTTHHOORR + Jamie Zawinski , 17-aug-92. + + Based on SmallTalk code which appeared in the August 1981 + issue of Byte magazine. + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +X Version 11 24-Nov-97 3 + +