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| author | The Android Open Source Project <initial-contribution@android.com> | 2008-10-21 07:00:00 -0700 |
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| committer | The Android Open Source Project <initial-contribution@android.com> | 2008-10-21 07:00:00 -0700 |
| commit | 56f1b66a4b20a7f85865c852dd46df5e4635a9d6 (patch) | |
| tree | 93693412a6d49782f7bf07ac44fba0b6d15575e8 /giflib-4.1.6/doc/gif2herc.html | |
| parent | 1bc4596b116b3c829824c8b929ce48f864ca4a3c (diff) | |
| download | android_external_giflib-56f1b66a4b20a7f85865c852dd46df5e4635a9d6.tar.gz android_external_giflib-56f1b66a4b20a7f85865c852dd46df5e4635a9d6.tar.bz2 android_external_giflib-56f1b66a4b20a7f85865c852dd46df5e4635a9d6.zip | |
Initial Contribution
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| -rw-r--r-- | giflib-4.1.6/doc/gif2herc.html | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/giflib-4.1.6/doc/gif2herc.html b/giflib-4.1.6/doc/gif2herc.html deleted file mode 100644 index 26afe0c..0000000 --- a/giflib-4.1.6/doc/gif2herc.html +++ /dev/null @@ -1,153 +0,0 @@ -<!doctype HTML public "-//W3O//DTD W3 HTML 2.0//EN"> -<HTML> -<HEAD> -<TITLE>gif2herc</TITLE> -<link rev=made href=mailto:esr@snark.thyrsus.com> -</HEAD> -<BODY> -Go to <a href="index.html">index page</a>. - -<CENTER><H1>gif2herc</H1></CENTER> - -A program to display images saved as GIF files on an IBM PC Hercules -graphic card. The program operates as follows:<P> - -<OL> -<LI> -Read GIF file header and determine size of the image.<P> - -<LI> -Dynamically allocate enough memory to hold all the image internally. -One byte per pixel is always allocated, so a little bit more than -width*height (of screen, not image) bytes are required.<P> - -<LI> -Reads the image in. Interlaced images are read correctly, although -they are displayed sequentially.<P> - -<LI> -Display first image using the defaults as set by the command line option.<P> - -<LI> -Goes to interactive mode. For full description of the interactive mode -see below.<P> -</OL> - -<H1>Usage:</H1> - -<pre> -gif2herc [-q] [-d dither] [-z zoom] [-t bw] [-m map] [-i] [-b] [-h] gif-file -</pre> - -If no gif-file is given, gif2herc will try to read a GIF file from stdin.<P> - - -<H1>Memory required:</H1> - -Screen. - -<H1>Options:</H1> - -<DT> [-q] -<DD> Quiet mode. Defaults off on MSDOS, on under UNIX. Controls printout - of running scan lines. Use -q- to invert.<P> - -<DT> [-d dither] -<DD> Sets size of dithering matrix, where dither can be - 2,3 or 4 only (for 2x2, 3x3 and 4x4 dithering matrices). Default is 2. - Note: the image will be dithered only if the mapping (see -m) - selected dithering mode.<P> - -<DT> [-z zoom] -<DD> Sets zoom factor of the image. Zoom factor should be - power of 2 up to 256. Default is 1 (no zoom).<P> - -<DT> [-t bw] -<DD> Sets threshold level for B&W mapping in percent. - This threshold level is used in the different mappings as selected via -m. - Default is 19%.<P> - -<DT> [-m map] -<DD> Select method to map colors to B&W. Mapping can be: - - <DL> - <DT>0<DD> - Every non-background color is considered foreground (white). - - <DT>1<DD> - 0.3 * RED + 0.59 * GREEN + 0.11 * YELLOW > BWThreshold is considered white. - - <DT>2<DD> - Colors are mapped as in 1, and use dithering of size as defined using - -d option. BWthreshold is used here as scaler. - </DL> - -Default is option 0, which is much faster than the other two.<P> - -<DT> [-i] -<DD> Invert the image, i.e. black -> white, white -> black.<P> - -<DT> [-b] -<DD> Disable beeps. Every time the image is complete, or a wrong key was - presses, sound is generated. The -b option disables that.<P> - -<DT> [-h] -<DD> Print one line of command line help, similar to Usage above.<P> -</DL> - -<H1>Interactive mode:</H1> - -Once the image is displayed, the program goes into an interactive mode -which recognizes the following commands: - -<DL> -<DT> C - get Color and position -<DD> In this submenu, a cursor appears and the location and color of the - pixel underneath it are printed. The 4 arrows may be used (shifted for - faster movement) to move the cursor. Any other key will abort this - submode.<P> - - -<DT> D - zoom Down -<DD> Zoom down by factor of 2 unless current zoom factor is 1.<P> - -<DT>H - Increase dither matrix size -<DD>...unless current size is maximum (4), in which case size is set - to minimum (2).<P> - -<DT>I - Invert -<DD>Invert the image, i.e. white -> black, black -> white.<P> - -<DT>M - Method -<DD>Increment color -> BW mapping method, unless current method is maximum - (2), in which case method is set to minimum (0).<P> - -<DT> R - Redraw -<DD> Redraw the image.<P> - -<DT> S - print Status -<DD> Print status of image and program.<P> - -<DT> U - zoom Up -<DD> Zoom up by factor of 2 unless current zoom factor is 256.<P> - -<DT> arrow keys -<DD> The 4 arrow keys can be used to pan in the desired direction, if the image - overflows in that direction. If the image fits into the screen, arrow - keys are ignored. The panning steps are 1/2 screen if not on image end.<P> - -<DT> SPC - abort -<DD> Space bar may be used to abort current image drawing.<P> - -<DT> ESC - abort -<DD> Escape may be used to abort current image drawing.<P> -</DL> - -<H1>Author:</H1> - -Gershon Elber - -<HR> -<ADDRESS>Eric S. Raymond <A HREF="mailto:esr@thyrsus.com"><esr@snark.thyrsus.com></A></ADDRESS> -</BODY> -</HTML> |