📄 m24b_lin.c
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/*************************************************************************/
/* */
/* Copyright (c) 1997 - 1999 Accelerated Technology, Inc. */
/* */
/* PROPRIETARY RIGHTS of Accelerated Technology are involved in the */
/* subject matter of this material. All manufacturing, reproduction, */
/* use, and sales rights pertaining to this subject matter are governed */
/* by the license agreement. The recipient of this software implicitly */
/* accepts the terms of the license. */
/* */
/*************************************************************************/
/*************************************************************************/
/* */
/* FILE NAME VERSION */
/* */
/* m24b_lin.c 1.9 */
/* */
/* COMPONENT */
/* */
/* All */
/* */
/* DESCRIPTION */
/* */
/* This file contains the thin line drawing functions for 24 bit */
/* memory. */
/* */
/* AUTHOR */
/* */
/* Robert G. Burrill, Accelerated Technology, Inc. */
/* */
/* DATA STRUCTURES */
/* */
/* None */
/* */
/* FUNCTIONS */
/* */
/* None */
/* */
/* DEPENDENCIES */
/* */
/* None */
/* */
/* HISTORY */
/* */
/* NAME DATE REMARKS */
/* */
/* BobB 11/18/99 Corrected region clipping test */
/* */
/*************************************************************************/
#include "meta_wnd.h"
#include "metconst.h" /* MetaWINDOW Constant & Stucture Definitions */
#include "metports.h" /* MetaWINDOW Port & Bitmap Definitions */
#include "metaproc.h"
#include "grafdata.h"
#include "blit_5.h"
/* Function mwLIA24 is a special case optimization for thin line
drawing to 24 bit memory destinations, rectangular and/or region
clipping. */
void mwLIA24(blitRcd *lineRec)
{
void ClipAndDrawEntry(void);
int Set_Up_Clip(blitRcd *clipBlit, rect *clipR, int blitMayOverlap,
int isLine);
int Line_Clip_Region(int rectCnt, lineS *destRect);
void nuResume(grafMap *argGRAFMAP);
void M24BURTable(void);
void M24BMRTable(void);
void M24BMOTable(void);
void M24BUXTable(void);
void M24BMXTable(void);
void M24BMATable(void);
void M24BMO_NDTable(void);
void M24BMA_NDTable(void);
void QuickEnd(void);
lineS *listPtr; /* Pointer to line to draw */
int blitMayOverlap = 0; /* Set false */
int isLine = 1; /* Set true */
/* Table used to NOT the source color according to raster op. */
byte FlipTable[16] = {0, 0, 0, 0xff,
0xff, 0xff, 0xff, 0,
0, 0, 0, 0,
0, 0xff, 0, 0xff};
/* Table used to force the source color to 0xff according to raster op. */
byte ForceTableOr[16] = {0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0xff, 0, 0xff, 0};
/* Table used to force the source color to 0 according to raster op. */
byte ForceTableAnd[16] = {0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff};
/* set up the rectangular/region clip info */
if (Set_Up_Clip(lineRec, &cRect, blitMayOverlap, isLine)) return;
/* do we need to worry about clipping at all*/
/* BobB 11/18/99 - corrected the following line
if (clipToRectFlag == 0) */
if (clipToRegionFlag == 0)
{ /* no--valid coordinates are guaranteed at a higher level */
cRect.Xmax--; /* the clipping code expects an old-style
Metawindow clip rect */
cRect.Ymax--;
}
else
{ /* yes, copy the clip rect to the base, unchanging clip rect */
bcXmin = cRect.Xmin;
bcYmin = cRect.Ymin;
bcXmax = cRect.Xmax - 1;
bcYmax = cRect.Ymax - 1;
}
listPtr = (lineS *) lineRec->blitList; /* set up local variables */
rectCnt = lineRec->blitCnt;
lclPortMask = lineRec->blitMask;
dstClass = lineRec->blitRop;
if (lineRec->blitPat == 0) /* pattern 0? */
{ /* yes, use background color */
if (dstClass & 0x10) return; /* done if transparent */
lclPenColorR = (byte) (lineRec->blitBack >> 16);
lclPenColorG = (byte) ((lineRec->blitBack >> 8) & 0xff);
lclPenColorB = (byte) (lineRec->blitBack & 0xff);
}
else
{ /* pattern 1 is the only other possibility */
lclPenColorR = (byte) (lineRec->blitFore >> 16);
lclPenColorG = (byte) ((lineRec->blitFore >> 8) & 0xff);
lclPenColorB = (byte) (lineRec->blitFore & 0xff);
}
dstClass = dstClass & 0x0f; /* we don't care about transparency */
lclPenColorR = lclPenColorR ^ FlipTable[dstClass]; /* NOT the
color if appropriate */
lclPenColorR = lclPenColorR ^ FlipTable[dstClass]; /* NOT the
color if appropriate */
lclPenColorR = lclPenColorR ^ FlipTable[dstClass]; /* NOT the
color if appropriate */
lclPenColorG = lclPenColorG | ForceTableOr[dstClass]; /* make
the color 0xff if appropriate */
lclPenColorG = lclPenColorG | ForceTableOr[dstClass]; /* make
the color 0xff if appropriate */
lclPenColorG = lclPenColorG | ForceTableOr[dstClass]; /* make
the color 0xff if appropriate */
lclPenColorB = lclPenColorB & ForceTableAnd[dstClass]; /* make
the color 0 if appropriate */
lclPenColorB = lclPenColorB & ForceTableAnd[dstClass]; /* make
the color 0 if appropriate */
lclPenColorB = lclPenColorB & ForceTableAnd[dstClass]; /* make
the color 0 if appropriate */
dstBmap = lineRec->blitDmap;
M_PAUSE(dstBmap); /* lock grafMap */
dstWidth = dstBmap->pixBytes;
rowTablePtr[1] = (long *) dstBmap->mapTable[0];
switch (dstClass)
{ /* look up the optimization routine */
/* LCD non-transparent */
case 0: /* zREPz : src */
case 4: /* zNREPz : (NOT src) */
case 8: /* zCLEARz : 0's */
case 12: /* zSETz : 1's */
if (lclPortMask == 0xff)
{ /* unmasked */
optPtr = &M24BURTable;
}
else
{ /* masked */
optPtr = &M24BMRTable;
}
break;
case 1: /* zORz : src OR dst */
case 5: /* zNORz : (NOT src) OR dst */
optPtr = &M24BMOTable;
break;
case 2: /* zXORz : src XOR dst */
case 6: /* zNXORz : (NOT src) XOR dst */
case 14: /* zINVERTz: (NOT dst) */
if (lclPortMask == 0xff)
{ /* unmasked */
optPtr = &M24BUXTable;
}
else
{ /* masked */
optPtr = &M24BMXTable;
}
break;
case 3: /* zNANDz : (NOT src) AND dst */
case 7: /* zANDz : src AND dst */
optPtr = &M24BMATable;
break;
case 9: /* zORNz : src OR (NOT dst) */
case 13: /* zNORNz : (NOT src) OR (NOT dst) */
optPtr = &M24BMO_NDTable;
break;
case 10: /* zNOPz : dst <NOP> */
optPtr = &QuickEnd;
break;
case 11: /* zANDNz : src AND (NOT dst) */
case 15: /* zNANDNz : (NOT src) AND (NOT dst) */
optPtr = &M24BMA_NDTable;
break;
}
if (clipToRegionFlag != 0)
{ /* handle region clipping in a separate loop */
LineDrawer = &ClipAndDrawEntry;
Line_Clip_Region(rectCnt, listPtr);
nuResume(dstBmap);
return;
}
while (rectCnt-- > 0)
{ /* Main line-drawing loop. */
dRect.Xmin = listPtr->lStart.X;
dRect.Ymin = listPtr->lStart.Y;
dRect.Xmax = listPtr->lEnd.X;
dRect.Ymax = listPtr->lEnd.Y;
drawStat = (char) listPtr->flStat;
listPtr++;
ClipAndDrawEntry(); /* clip and draw the line */
}
nuResume(dstBmap);
return;
}
#define M24BMRYMLR M24BMRV
#define M24BMRXMLR M24BMRH
#define M24BMRDLR M24BMRH
#define M24BMRXMRL M24BMRDRL
#define M24BMXYMLR M24BMXV
#define M24BMXXMLR M24BMXH
#define M24BMXDLR M24BMXH
#define M24BMXXMRL M24BMXDRL
#define M24BMOYMLR M24BMOV
#define M24BMOXMLR M24BMOH
#define M24BMODLR M24BMOH
#define M24BMOXMRL M24BMODRL
#define M24BMOYMLR_ND M24BMOV_ND
#define M24BMOXMLR_ND M24BMOH_ND
#define M24BMODLR_ND M24BMOH_ND
#define M24BMOXMRL_ND M24BMODRL_ND
#define M24BMAYMLR M24BMAV
#define M24BMAXMLR M24BMAH
#define M24BMADLR M24BMAH
#define M24BMAXMRL M24BMADRL
#define M24BMAYMLR_ND M24BMAV_ND
#define M24BMAXMLR_ND M24BMAH_ND
#define M24BMADLR_ND M24BMAH_ND
#define M24BMAXMRL_ND M24BMADRL_ND
void M24BURTable(void)
{
void M24BURYMRL(void);
void M24BURV(void);
void M24BURYMLR(void);
void M24BURDLR(void);
void M24BURXMLR(void);
void M24BURH(void);
void M24BURDRL(void);
void M24BURXMRL(void);
switch (lineDir) /* appropriate for the line direction */
{
case 0:
M24BURYMRL();
break;
case 1:
M24BURV();
break;
case 2:
M24BURYMLR();
break;
case 3:
M24BURDLR();
break;
case 4:
M24BURXMLR();
break;
case 5:
M24BURH();
break;
case 6:
M24BURDRL();
break;
case 7:
M24BURXMRL();
break;
}
return;
}
void M24BMRTable(void)
{
void M24BMRYMRL(void);
void M24BMRV(void);
void M24BMRYMLR(void);
void M24BMRDLR(void);
void M24BMRXMLR(void);
void M24BMRH(void);
void M24BMRDRL(void);
void M24BMRXMRL(void);
switch (lineDir) /* appropriate for the line direction */
{
case 0:
M24BMRYMRL();
break;
case 1:
M24BMRV();
break;
case 2:
M24BMRYMLR();
break;
case 3:
M24BMRDLR();
break;
case 4:
M24BMRXMLR();
break;
case 5:
M24BMRH();
break;
case 6:
M24BMRDRL();
break;
case 7:
M24BMRXMRL();
break;
}
return;
}
void M24BMOTable(void)
{
void M24BMOYMRL(void);
void M24BMOV(void);
void M24BMOYMLR(void);
void M24BMODLR(void);
void M24BMOXMLR(void);
void M24BMOH(void);
void M24BMODRL(void);
void M24BMOXMRL(void);
switch (lineDir) /* appropriate for the line direction */
{
case 0:
M24BMOYMRL();
break;
case 1:
M24BMOV();
break;
case 2:
M24BMOYMLR();
break;
case 3:
M24BMODLR();
break;
case 4:
M24BMOXMLR();
break;
case 5:
M24BMOH();
break;
case 6:
M24BMODRL();
break;
case 7:
M24BMOXMRL();
break;
}
return;
}
void M24BUXTable(void)
{
void M24BUXYMRL(void);
void M24BUXV(void);
void M24BUXYMLR(void);
void M24BUXDLR(void);
void M24BUXXMLR(void);
void M24BUXH(void);
void M24BUXDRL(void);
void M24BUXXMRL(void);
switch (lineDir) /* appropriate for the line direction */
{
case 0:
M24BUXYMRL();
break;
case 1:
M24BUXV();
break;
case 2:
M24BUXYMLR();
break;
case 3:
M24BUXDLR();
break;
case 4:
M24BUXXMLR();
break;
case 5:
M24BUXH();
break;
case 6:
M24BUXDRL();
break;
case 7:
M24BUXXMRL();
break;
}
return;
}
void M24BMXTable(void)
{
void M24BMXYMRL(void);
void M24BMXV(void);
void M24BMXYMLR(void);
void M24BMXDLR(void);
void M24BMXXMLR(void);
void M24BMXH(void);
void M24BMXDRL(void);
void M24BMXXMRL(void);
switch (lineDir) /* appropriate for the line direction */
{
case 0:
M24BMXYMRL();
break;
case 1:
M24BMXV();
break;
case 2:
M24BMXYMLR();
break;
case 3:
M24BMXDLR();
break;
case 4:
M24BMXXMLR();
break;
case 5:
M24BMXH();
break;
case 6:
M24BMXDRL();
break;
case 7:
M24BMXXMRL();
break;
}
return;
}
void M24BMATable(void)
{
void M24BMAYMRL(void);
void M24BMAV(void);
void M24BMAYMLR(void);
void M24BMADLR(void);
void M24BMAXMLR(void);
void M24BMAH(void);
void M24BMADRL(void);
void M24BMAXMRL(void);
switch (lineDir) /* appropriate for the line direction */
{
case 0:
M24BMAYMRL();
break;
case 1:
M24BMAV();
break;
case 2:
M24BMAYMLR();
break;
case 3:
M24BMADLR();
break;
case 4:
M24BMAXMLR();
break;
case 5:
M24BMAH();
break;
case 6:
M24BMADRL();
break;
case 7:
M24BMAXMRL();
break;
}
return;
}
void M24BMO_NDTable(void)
{
void M24BMOYMRL_ND(void);
void M24BMOV_ND(void);
void M24BMOYMLR_ND(void);
void M24BMODLR_ND(void);
void M24BMOXMLR_ND(void);
void M24BMOH_ND(void);
void M24BMODRL_ND(void);
void M24BMOXMRL_ND(void);
switch (lineDir) /* appropriate for the line direction */
{
case 0:
M24BMOYMRL_ND();
break;
case 1:
M24BMOV_ND();
break;
case 2:
M24BMOYMLR_ND();
break;
case 3:
M24BMODLR_ND();
break;
case 4:
M24BMOXMLR_ND();
break;
case 5:
M24BMOH_ND();
break;
case 6:
M24BMODRL_ND();
break;
case 7:
M24BMOXMRL_ND();
break;
}
return;
}
void M24BMA_NDTable(void)
{
void M24BMAYMRL_ND(void);
void M24BMAV_ND(void);
void M24BMAYMLR_ND(void);
void M24BMADLR_ND(void);
void M24BMAXMLR_ND(void);
void M24BMAH_ND(void);
void M24BMADRL_ND(void);
void M24BMAXMRL_ND(void);
switch (lineDir) /* appropriate for the line direction */
{
case 0:
M24BMAYMRL_ND();
break;
case 1:
M24BMAV_ND();
break;
case 2:
M24BMAYMLR_ND();
break;
case 3:
M24BMADLR_ND();
break;
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