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* config.h.in: Remove mention of GLYPH datatype; that shouldn't be

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a user option.
	* lisp.h (GLYPH, MAKE_GLYPH, GLYPH_CHAR, GLYPH_FACE): New macros.
This commit is contained in:
Jim Blandy 1993-05-10 00:17:55 +00:00
parent 2fc6697323
commit 703f280806
1 changed files with 22 additions and 0 deletions
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22
src/lisp.h
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@ -579,6 +579,28 @@ typedef unsigned char UCHAR;
#define CHAR_SHIFT (0x200000)
#define CHAR_CTL (0x400000)
#define CHAR_META (0x800000)
/* The glyph datatype, used to represent characters on the display. */
/* The low eight bits are the character code, and the bits above them
are the numeric face ID. If FID is the face ID of a glyph on a
frame F, then F->display.x->faces[FID] contains the description of
that face. This is an int instead of a short, so we can support a
good bunch of face ID's; given that we have no mechanism for
tossing unused frame face ID's yet, we'll probably run out of 255
pretty quickly. */
#define GLYPH unsigned int
/* Given a character code and a face ID, return the appropriate glyph. */
#define MAKE_GLYPH(char, face) ((char) | ((face) << 8))
/* Return a glyph's character code. */
#define GLYPH_CHAR(glyph) ((glyph) & 0xff)
/* Return a glyph's face ID. */
#define GLYPH_FACE(glyph) (((glyph) >> 8) & 0xff)
/* Data type checking */