forked from KolibriOS/kolibrios
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
|
/*
|
||
|
|
------------------------------------------------------------
|
||
|
|
Fixed Rate Pig - a fixed logic frame rate demo
|
||
|
|
------------------------------------------------------------
|
||
|
|
* Copyright (C) 2004 David Olofson <david@olofson.net>
|
||
|
|
*
|
||
|
|
* This software is released under the terms of the GPL.
|
||
|
|
*
|
||
|
|
* Contact author for permission if you want to use this
|
||
|
|
* software, or work derived from it, under other terms.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef PIG_DIRTY_H
|
||
|
|
#define PIG_DIRTY_H
|
||
|
|
|
||
|
|
/* A table of dirtyrects for one display page */
|
||
|
|
typedef struct PIG_dirtytable
|
||
|
|
{
|
||
|
|
int size; /* Table size */
|
||
|
|
SDL_Rect *rects; /* Table of rects */
|
||
|
|
int count; /* # of rects currently used */
|
||
|
|
int best; /* Merge testing starts here! */
|
||
|
|
} PIG_dirtytable;
|
||
|
|
|
||
|
|
|
||
|
|
PIG_dirtytable *pig_dirty_open(int size);
|
||
|
|
void pig_dirty_close(PIG_dirtytable *pdt);
|
||
|
|
|
||
|
|
/* Add rectangle 'dr' to table 'pdt' */
|
||
|
|
void pig_dirty_add(PIG_dirtytable *pdt, SDL_Rect *dr);
|
||
|
|
|
||
|
|
/* Merge table 'from' into 'pdt' */
|
||
|
|
void pig_dirty_merge(PIG_dirtytable *pdt, PIG_dirtytable *from);
|
||
|
|
|
||
|
|
/* Extend 'to' to a new rect that includes both 'from' and 'to' */
|
||
|
|
void pig_mergerect(SDL_Rect *from, SDL_Rect *to);
|
||
|
|
|
||
|
|
/* Clip 'to' into a rect that is the intersection of 'from' and 'to' */
|
||
|
|
void pig_intersectrect(SDL_Rect *from, SDL_Rect *to);
|
||
|
|
|
||
|
|
#endif /* PIG_DIRTY_H */
|