1 /**
2 ** genptscl.c ---- generic, VERY SLOW putscanline routine
3 **
4 ** Copyright (c) 1998 Hartmut Schirmer
5 **
6 ** This file is part of the GRX graphics library.
7 **
8 ** The GRX graphics library is free software; you can redistribute it
9 ** and/or modify it under some conditions; see the "copying.grx" file
10 ** for details.
11 **
12 ** This library is distributed in the hope that it will be useful,
13 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
14 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
15 **
16 **/
17
18 #include "libgrx.h"
19 #include "grdriver.h"
20
21 /* will draw array of pixel values to current context */
22
_GrFrDrvGenericPutScanline(int x,int y,int w,const GrColor far * scl,GrColor op)23 void _GrFrDrvGenericPutScanline(int x,int y,int w,
24 const GrColor far *scl, GrColor op )
25 {
26 GrColor skipc;
27 _GR_drawPix drawpixel;
28 GRX_ENTER();
29 drawpixel = CURC->gc_driver->drawpixel;
30 DBGPRINTF(DBG_DRIVER,("x=%d, y=%d, w=%d, op=%lx\n",x,y,w,op));
31 skipc = op ^ GrIMAGE;
32 op &= GrCMODEMASK;
33 for ( w += x; x < w; ++x) {
34 GrColor c = *(scl++);
35 if (c != skipc) (*drawpixel)(x,y,(c|op));
36 }
37 GRX_LEAVE();
38 }
39