diff options
Diffstat (limited to 'os/boot/mpc/gnot.h')
| -rw-r--r-- | os/boot/mpc/gnot.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/os/boot/mpc/gnot.h b/os/boot/mpc/gnot.h new file mode 100644 index 00000000..7b99e6bb --- /dev/null +++ b/os/boot/mpc/gnot.h @@ -0,0 +1,71 @@ + +extern void *bbmalloc(int); +extern void bbfree(void *, int); +extern int bbonstack(void); +extern void bbexec(void(*)(void), int, int); + +/* + * Graphics types + */ + +typedef struct GBitmap GBitmap; +typedef struct GFont GFont; +typedef struct GSubfont GSubfont; +typedef struct GCacheinfo GCacheinfo; + +struct GBitmap +{ + ulong *base; /* pointer to start of data */ + long zero; /* base+zero=&word containing (0,0) */ + ulong width; /* width in 32 bit words of total data area */ + int ldepth; /* log base 2 of number of bits per pixel */ + Rectangle r; /* rectangle in data area, local coords */ + Rectangle clipr; /* clipping region */ + GBitmap *cache; /* zero; distinguishes bitmap from layer */ +}; + + +/* + * GFont etc. are not used in the library, only in devbit.c. + * GSubfont is only barely used. + */ +struct GSubfont +{ + short n; /* number of chars in font */ + char height; /* height of bitmap */ + char ascent; /* top of bitmap to baseline */ + Fontchar *info; /* n+1 character descriptors */ + GBitmap *bits; /* where the characters are */ +}; +struct GCacheinfo +{ + ulong xright; /* right edge of bits */ + Fontchar; +}; + +struct GFont +{ + uchar height; /* max height of bitmap, interline spacing */ + char ascent; /* top of bitmap to baseline */ + char width; /* widest so far; used in caching only */ + char ldepth; /* of images */ + short id; /* of font */ + int ncache; /* number of entries in cache */ + GCacheinfo *cache; /* cached characters */ + GBitmap *b; /* cached images */ +}; + +extern ulong *gaddr(GBitmap*, Point); +extern uchar *gbaddr(GBitmap*, Point); +extern void gbitblt(GBitmap*, Point, GBitmap*, Rectangle, Fcode); +extern void gbitbltclip(void*); +extern void gtexture(GBitmap*, Rectangle, GBitmap*, Fcode); +extern Point gsubfstrsize(GSubfont*, char*); +extern int gsubfstrwidth(GSubfont*, char*); +extern Point gsubfstring(GBitmap*, Point, GSubfont*, char*, Fcode); +extern Point gbitbltstring(GBitmap*, Point, GSubfont*, char*, Fcode); +extern void gsegment(GBitmap*, Point, Point, int, Fcode); +extern void gpoint(GBitmap*, Point, int, Fcode); +extern void gflushcpucache(void); +extern GBitmap* gballoc(Rectangle, int); +extern void gbfree(GBitmap*); |
