+++ /dev/null
-#include <stddef.h> /* Surprisingly, the only symbol needed is NULL */
-#include "glk.h"
-
-/* Version of the Glk specification implemented by this library */
-#define MAJOR_VERSION 0
-#define MINOR_VERSION 7
-#define SUB_VERSION 0
-
-/**
- * glk_gestalt:
- * @sel: A selector, representing which capability to request information
- * about.
- * @val: Extra information, depending on the value of @sel.
- *
- * Calls the gestalt system to request information about selector @sel, without
- * passing an array to store extra information in (see glk_gestalt_ext()).
- *
- * Returns: an integer, depending on what selector was called.
- */
-glui32
-glk_gestalt(glui32 sel, glui32 val)
-{
- return glk_gestalt_ext(sel, val, NULL, 0);
-}
-
-/**
- * glk_gestalt_ext:
- * @sel: A selector, representing which capability to request information
- * about.
- * @val: Extra information, depending on the value of @sel.
- * @arr: Location of an array to store extra information in, or %NULL.
- * @arrlen: Length of @arr, or 0 if @arr is %NULL.
- *
- * Calls the gestalt system to request information about the capabilities of the
- * API. The selector @sel tells which capability you are requesting information
- * about; the other three arguments are additional information, which may or may
- * not be meaningful. The @arr and @arrlen arguments of glk_gestalt_ext() are
- * always optional; you may always pass %NULL and 0, if you do not want whatever
- * information they represent. glk_gestalt() is simply a shortcut for this;
- * <code>#glk_gestalt(x, y)</code> is exactly the same as
- * <code>#glk_gestalt_ext(x, y, %NULL, 0)</code>.
- *
- * The critical point is that if the Glk library has never heard of the selector
- * @sel, it will return 0. It is <emphasis>always</emphasis> safe to call
- * <code>#glk_gestalt(x, y)</code> (or <code>#glk_gestalt_ext(x, y, %NULL,
- * 0)</code>). Even if you are using an old library, which was compiled before
- * the given capability was imagined, you can test for the capability by calling
- * glk_gestalt(); the library will correctly indicate that it does not support
- * it, by returning 0.
- *
- * (It is also safe to call <code>#glk_gestalt_ext(x, y, z, zlen)</code> for an
- * unknown selector <code>x</code>, where <code>z</code> is not %NULL, as long
- * as <code>z</code> points at an array of at least <code>zlen</code> elements.
- * The selector will be careful not to write beyond that point in the array, if
- * it writes to the array at all.)
- *
- * (If a selector does not use the second argument, you should always pass 0; do
- * not assume that the second argument is simply ignored. This is because the
- * selector may be extended in the future. You will continue to get the current
- * behavior if you pass 0 as the second argument, but other values may produce
- * other behavior.)
- *
- * Returns: an integer, depending on what selector was called.
- */
-glui32
-glk_gestalt_ext(glui32 sel, glui32 val, glui32 *arr, glui32 arrlen)
-{
- switch(sel)
- {
- /* Version number */
- case gestalt_Version:
- return (MAJOR_VERSION << 16) + (MINOR_VERSION << 8) + SUB_VERSION;
-
- /* Which characters can the player type in line input? */
- case gestalt_LineInput:
- /* Does not accept control chars */
- if( val < 32 || (val >= 127 && val <= 159) )
- return 0;
- return 1;
-
- /* Which characters can the player type in char input? */
- case gestalt_CharInput:
- /* Does not accept control chars or unknown */
- if( val < 32 || (val >= 127 && val <= 159) || val == keycode_Unknown )
- return 0;
- return 1;
-
- /* Which characters can we print? */
- case gestalt_CharOutput:
- /* All characters are printed as one character, in any case */
- if(arr && arrlen > 0)
- *arr = 1;
- /* Cannot print control chars except \n, or chars > 255 */
- if( (val < 32 && val != 10) || (val >= 127 && val <= 159) || (val > 255) )
- return gestalt_CharOutput_CannotPrint;
- /* Can print all other Latin-1 characters */
- return gestalt_CharOutput_ExactPrint;
-
- /* Unicode capabilities present */
- case gestalt_Unicode:
- return 1;
-
- /* Timer capabilities present */
- case gestalt_Timer:
- return 1;
-
- /* Unsupported capabilities */
- case gestalt_MouseInput:
- case gestalt_Graphics:
- case gestalt_DrawImage:
- case gestalt_Sound:
- case gestalt_SoundVolume:
- case gestalt_SoundNotify:
- case gestalt_Hyperlinks:
- case gestalt_HyperlinkInput:
- case gestalt_SoundMusic:
- case gestalt_GraphicsTransparency:
- /* Selector not supported */
- default:
- return 0;
- }
-}
-
projects / projects / chimara / chimara.git / blobdiff