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Diffstat (limited to 'dvi/mdvi-lib/bitmap.h')
| -rw-r--r-- | dvi/mdvi-lib/bitmap.h | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/dvi/mdvi-lib/bitmap.h b/dvi/mdvi-lib/bitmap.h deleted file mode 100644 index 4d5f23a..0000000 --- a/dvi/mdvi-lib/bitmap.h +++ /dev/null @@ -1,145 +0,0 @@ -/* - * Copyright (C) 2000, Matias Atria - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#ifndef _BITMAP_H -#define _BITMAP_H 1 - -#include "sysdeps.h" - -/* Structures and functions to manipulate bitmaps */ - -/* bitmap unit (as in X's docs) */ -typedef Uint32 BmUnit; - -/* size (in bytes) of a bitmap atom */ -#define BITMAP_BYTES 4 - -/* size (in bits) of a bitmap atom */ -#define BITMAP_BITS (BITMAP_BYTES << 3) - -typedef struct { - int width; - int height; - int stride; - BmUnit *data; -} BITMAP; - -#define BM_BYTES_PER_LINE(b) \ - (ROUND((b)->width, BITMAP_BITS) * BITMAP_BYTES) -#define BM_WIDTH(b) (((BITMAP *)(b))->width) -#define BM_HEIGHT(b) (((BITMAP *)(b))->height) - -#define BMBIT(n) ((BmUnit)1 << (n)) - -/* Macros to manipulate individual pixels in a bitmap - * (they are slow, don't use them) - */ - -#define bm_offset(b,o) (BmUnit *)((Uchar *)(b) + (o)) - -#define __bm_unit_ptr(b,x,y) \ - bm_offset((b)->data, (y) * (b)->stride + \ - ((x) / BITMAP_BITS) * BITMAP_BYTES) - -#define __bm_unit(b,x,y) __bm_unit_ptr((b), (x), (y))[0] - -#define BM_GETPIXEL(b,x,y) __bm_unit((b), (x), (y)) -#define BM_SETPIXEL(b,x,y) (__bm_unit((b), (x), (y)) |= FIRSTMASKAT(x)) -#define BM_CLRPIXEL(b,x,y) (__bm_unit((b), (x), (y)) &= ~FIRSTMASKAT(x)) - -/* - * These macros are used to access pixels in a bitmap. They are supposed - * to be used like this: - */ -#if 0 - BmUnit *row, mask; - - mask = FIRSTMASK; - - /* position `unit' at coordinates (column_number, row_number) */ - unit = (BmUnit *)((char *)bitmap->data + row_number * bitmap->stride - + (column_number / BITMAP_BITS); - /* loop over all pixels IN THE SAME ROW */ - for(i = 0; i < number_of_pixels; i++) { - /* to test if a pixel is set */ - if(*unit & mask) { - /* yes, it is, do something with it */ - } - /* to set/clear a pixel */ - if(painting) - *unit |= mask; /* now you see it */ - else - *unit &= ~mask; /* now you don't */ - /* move to next pixel */ - if(mask == LASTMASK) { - unit++; - UPDATEMASK(mask); - } - } -/* end of sample code */ -#endif - -/* bitmaps are stored in native byte order */ -#ifdef WORD_BIG_ENDIAN -#define FIRSTSHIFT (BITMAP_BITS - 1) -#define LASTSHIFT 0 -#define NEXTMASK(m) ((m) >>= 1) -#define PREVMASK(m) ((m) <<= 1) -#define FIRSTSHIFTAT(c) (BITMAP_BITS - ((c) % BITMAP_BITS) - 1) -#else -#define FIRSTSHIFT 0 -#define LASTSHIFT (BITMAP_BITS - 1) -#define NEXTMASK(m) ((m) <<= 1) -#define PREVMASK(m) ((m) >>= 1) -#define FIRSTSHIFTAT(c) ((c) % BITMAP_BITS) -#endif - -#define FIRSTMASK BMBIT(FIRSTSHIFT) -#define FIRSTMASKAT(c) BMBIT(FIRSTSHIFTAT(c)) -#define LASTMASK BMBIT(LASTSHIFT) - -extern BITMAP *bitmap_alloc __PROTO((int, int)); -extern BITMAP *bitmap_alloc_raw __PROTO((int, int)); -extern void bitmap_destroy __PROTO((BITMAP *)); - -/* - * set_row(bm, row, col, count, state): - * sets `count' pixels to state `onoff', starting from pixel - * at position (col, row). All pixels must lie in the same - * row. - */ -extern void bitmap_set_col __PROTO((BITMAP *, int, int, int, int)); -extern void bitmap_set_row __PROTO((BITMAP *, int, int, int, int)); - -extern void bitmap_paint_bits __PROTO((BmUnit *, int, int)); -extern void bitmap_clear_bits __PROTO((BmUnit *, int, int)); - -extern BITMAP *bitmap_copy __PROTO((BITMAP *)); -extern void bitmap_flip_horizontally __PROTO((BITMAP *)); -extern void bitmap_flip_vertically __PROTO((BITMAP *)); -extern void bitmap_flip_diagonally __PROTO((BITMAP *)); -extern void bitmap_rotate_clockwise __PROTO((BITMAP *)); -extern void bitmap_rotate_counter_clockwise __PROTO((BITMAP *)); -extern void bitmap_flip_rotate_clockwise __PROTO((BITMAP *)); -extern void bitmap_flip_rotate_counter_clockwise __PROTO((BITMAP *)); -extern BITMAP *bitmap_convert_lsb8 __PROTO((Uchar *, int, int)); -extern BITMAP *bitmap_convert_msb8 __PROTO((Uchar *, int, int)); - -#include <stdio.h> -extern void bitmap_print __PROTO((FILE *, BITMAP *)); - -#endif /* _BITMAP_H */ |