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Games of Daze
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Infomagic - Games of Daze (Summer 1995) (Disc 1 of 2).iso
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xlib
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xlib06
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xclippbm.h
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C/C++ Source or Header
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1993-09-12
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2KB
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57 lines
/*-----------------------------------------------------------------------
; MODULE XCLIPPBM
;
; This module was written by Matthew MacKenzie
; matm@eng.umd.edu
;
; Clipped transfer of planar bitmaps from system memory to video memory.
;
; Compile with TASM.
; C near-callable.
;
; ****** XLIB - Mode X graphics library ****************
; ****** ****************
; ****** Written By Themie Gouthas ****************
;
; Terminology & notes:
; VRAM == Video RAM
; SRAM == System RAM
; X coordinates are in pixels unless explicitly stated
;
;----------------------------------------------------------------------*/
#ifndef _XCLIPPBM_H_
#define _XCLIPPBM_H_
/* unlike most global variables in Xlib, these are meant to be written to;
in fact they start off uninitialized -- all values are in pixels */
extern int TopBound;
extern int BottomBound;
extern int LeftBound;
extern int RightBound;
#ifdef __cplusplus
extern "C" {
#endif
/* for both functions, a return value of 1 indicates that the entire
bitmap was outside the bounding box, while a value of 0 means that
something may have ended up on the screen */
/* copies a planar bitmap from SRAM to VRAM, with clipping */
int x_clip_pbm (int X, int Y, int ScreenOffs, char far * Bitmap);
/* copies a planar bitmap from SRAM to VRAM, with clipping -- 0 bytes
in the bitmap are not copied */
int x_clip_masked_pbm (int X, int Y, int ScreenOffs, char far * Bitmap);
#ifdef __cplusplus
}
#endif
#endif