📄 m1b_lin.c
字号:
/*************************************************************************/
/* */
/* 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 */
/* */
/* m1b_lin.c 1.9 */
/* */
/* COMPONENT */
/* */
/* All */
/* */
/* DESCRIPTION */
/* */
/* This file contains the thin line drawing functions for 1 bit */
/* memory or LCD. */
/* */
/* 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 mwLI1Bit is a special case optimization for thin line
drawing to 1 bit memory destinations, rectangular and/or region
clipping. */
void mwLI1Bit(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 M1BURTable(void);
/* void M1BMRTable(void);*/
void M1BMOTable(void);
void M1BUXTable(void);
/* void M1BMXTable(void);*/
void M1BMATable(void);
void M1BMO_NDTable(void);
void M1BMA_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, 0x01,
0x01, 0x01, 0x01, 0,
0, 0, 0, 0,
0, 0x01, 0, 0x01};
/* Table used to force the source color to 0x01 according to raster op. */
byte ForceTableOr[16] = {0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0x01, 0, 0x01, 0};
/* Table used to force the source color to 0 according to raster op. */
byte ForceTableAnd[16] = {0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01,
0, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01};
/* 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 */
lclPenColor = (byte) lineRec->blitBack;
}
else
{ /* pattern 1 is the only other possibility */
lclPenColor = (byte) lineRec->blitFore;
}
if(lclPenColor != 0) lclPenColor = 1; /* force color 0 or 1 */
dstClass = dstClass & 0x0f; /* we don't care about transparency */
lclPenColor = lclPenColor ^ FlipTable[dstClass]; /* NOT the
color if appropriate */
lclPenColor = lclPenColor | ForceTableOr[dstClass]; /* make
the color 0x01 if appropriate */
lclPenColor = lclPenColor & ForceTableAnd[dstClass]; /* make
the color 0 if appropriate */
lclPenColor = lclPenColor & ((byte) lclPortMask);
dstBmap = lineRec->blitDmap;
M_PAUSE(dstBmap); /* lock grafMap */
dstWidth = dstBmap->pixBytes;
rowTablePtr[1] = (long *) dstBmap->mapTable[0];
switch (dstClass)
{ /* look up the optimization routine */
/* Memory non-transparent */
case 0: /* zREPz : src */
case 4: /* zNREPz : (NOT src) */
case 8: /* zCLEARz : 0's */
case 12: /* zSETz : 1's */
optPtr = &M1BURTable;
break;
case 1: /* zORz : src OR dst */
case 5: /* zNORz : (NOT src) OR dst */
optPtr = &M1BMOTable;
break;
case 2: /* zXORz : src XOR dst */
case 6: /* zNXORz : (NOT src) XOR dst */
case 14: /* zINVERTz: (NOT dst) */
optPtr = &M1BUXTable;
break;
case 3: /* zNANDz : (NOT src) AND dst */
case 7: /* zANDz : src AND dst */
optPtr = &M1BMATable;
break;
case 9: /* zORNz : src OR (NOT dst) */
case 13: /* zNORNz : (NOT src) OR (NOT dst) */
optPtr = &M1BMO_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 = &M1BMA_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 M1BMOYMLR M1BMOV
#define M1BMOXMLR M1BMOH
#define M1BMODLR M1BMOH
#define M1BMOXMRL M1BMODRL
#define M1BMOYMLR_ND M1BMOV_ND
#define M1BMOXMLR_ND M1BMOH_ND
#define M1BMODLR_ND M1BMOH_ND
#define M1BMOXMRL_ND M1BMODRL_ND
#define M1BMAYMLR M1BMAV
#define M1BMAXMLR M1BMAH
#define M1BMADLR M1BMAH
#define M1BMAXMRL M1BMADRL
#define M1BMAYMLR_ND M1BMAV_ND
#define M1BMAXMLR_ND M1BMAH_ND
#define M1BMADLR_ND M1BMAH_ND
#define M1BMAXMRL_ND M1BMADRL_ND
void M1BURTable(void)
{
void M1BURYMRL(void);
void M1BURV(void);
void M1BURYMLR(void);
void M1BURDLR(void);
void M1BURXMLR(void);
void M1BURH(void);
void M1BURDRL(void);
void M1BURXMRL(void);
switch (lineDir) /* appropriate for the line direction */
{
case 0:
M1BURYMRL();
break;
case 1:
M1BURV();
break;
case 2:
M1BURYMLR();
break;
case 3:
M1BURDLR();
break;
case 4:
M1BURXMLR();
break;
case 5:
M1BURH();
break;
case 6:
M1BURDRL();
break;
case 7:
M1BURXMRL();
break;
}
return;
}
void M1BMOTable(void)
{
void M1BMOYMRL(void);
void M1BMOV(void);
void M1BMOYMLR(void);
void M1BMODLR(void);
void M1BMOXMLR(void);
void M1BMOH(void);
void M1BMODRL(void);
void M1BMOXMRL(void);
if(lclPenColor == 0) return; /* nothing to do */
switch (lineDir) /* appropriate for the line direction */
{
case 0:
M1BMOYMRL();
break;
case 1:
M1BMOV();
break;
case 2:
M1BMOYMLR();
break;
case 3:
M1BMODLR();
break;
case 4:
M1BMOXMLR();
break;
case 5:
M1BMOH();
break;
case 6:
M1BMODRL();
break;
case 7:
M1BMOXMRL();
break;
}
return;
}
void M1BUXTable(void)
{
void M1BUXYMRL(void);
void M1BUXV(void);
void M1BUXYMLR(void);
void M1BUXDLR(void);
void M1BUXXMLR(void);
void M1BUXH(void);
void M1BUXDRL(void);
void M1BUXXMRL(void);
if(lclPenColor == 0) return; /* nothing to do */
switch (lineDir) /* appropriate for the line direction */
{
case 0:
M1BUXYMRL();
break;
case 1:
M1BUXV();
break;
case 2:
M1BUXYMLR();
break;
case 3:
M1BUXDLR();
break;
case 4:
M1BUXXMLR();
break;
case 5:
M1BUXH();
break;
case 6:
M1BUXDRL();
break;
case 7:
M1BUXXMRL();
break;
}
return;
}
void M1BMATable(void)
{
void M1BMAYMRL(void);
void M1BMAV(void);
void M1BMAYMLR(void);
void M1BMADLR(void);
void M1BMAXMLR(void);
void M1BMAH(void);
void M1BMADRL(void);
void M1BMAXMRL(void);
if(lclPenColor == 1) return; /* nothing to do */
switch (lineDir) /* appropriate for the line direction */
{
case 0:
M1BMAYMRL();
break;
case 1:
M1BMAV();
break;
case 2:
M1BMAYMLR();
break;
case 3:
M1BMADLR();
break;
case 4:
M1BMAXMLR();
break;
case 5:
M1BMAH();
break;
case 6:
M1BMADRL();
break;
case 7:
M1BMAXMRL();
break;
}
return;
}
void M1BMO_NDTable(void)
{
void M1BMOYMRL_ND(void);
void M1BMOV_ND(void);
void M1BMOYMLR_ND(void);
void M1BMODLR_ND(void);
void M1BMOXMLR_ND(void);
void M1BMOH_ND(void);
void M1BMODRL_ND(void);
void M1BMOXMRL_ND(void);
switch (lineDir) /* appropriate for the line direction */
{
case 0:
M1BMOYMRL_ND();
break;
case 1:
M1BMOV_ND();
break;
case 2:
M1BMOYMLR_ND();
break;
case 3:
M1BMODLR_ND();
break;
case 4:
M1BMOXMLR_ND();
break;
case 5:
M1BMOH_ND();
break;
case 6:
M1BMODRL_ND();
break;
case 7:
M1BMOXMRL_ND();
break;
}
return;
}
void M1BMA_NDTable(void)
{
void M1BMAYMRL_ND(void);
void M1BMAV_ND(void);
void M1BMAYMLR_ND(void);
void M1BMADLR_ND(void);
void M1BMAXMLR_ND(void);
void M1BMAH_ND(void);
void M1BMADRL_ND(void);
void M1BMAXMRL_ND(void);
switch (lineDir) /* appropriate for the line direction */
{
case 0:
M1BMAYMRL_ND();
break;
case 1:
M1BMAV_ND();
break;
case 2:
M1BMAYMLR_ND();
break;
case 3:
M1BMADLR_ND();
break;
case 4:
M1BMAXMLR_ND();
break;
case 5:
M1BMAH_ND();
break;
case 6:
M1BMADRL_ND();
break;
case 7:
M1BMAXMRL_ND();
break;
}
return;
}
/* Low-level line drawing optimizations. */
/* Unmasked low-level optimizations. */
/* Horizontal left->right replace. */
void M1BURH(void)
{
int i;
byte pxBit;
pxBit = (byte) (0x80 >> (dRect.Xmin & 0x07));
dstPtr = (byte *) *rowTablePtr[0] + (dRect.Xmin >> 3);
for (i = 0; i <= majorAxisLengthM1; i++)
{
if(lclPenColor)
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -