📄 m124_img.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 */
/* */
/* m124_img.c 1.9 */
/* */
/* COMPONENT */
/* */
/* All */
/* */
/* DESCRIPTION */
/* */
/* This file contains 1/2/4-bit memory image routines. */
/* */
/* AUTHOR */
/* */
/* Robert G. Burrill, Accelerated Technology, Inc. */
/* */
/* DATA STRUCTURES */
/* */
/* None */
/* */
/* FUNCTIONS */
/* */
/* None */
/* */
/* DEPENDENCIES */
/* */
/* None */
/* */
/* HISTORY */
/* */
/* NAME DATE REMARKS */
/* */
/* BobB 1/5/99 Corrected read image # of bits */
/* BobB 1/15/99 Corrected image shifting & read */
/* image byte counting */
/* BobB 6/15/99 Corrected write image addressing */
/* Mike Manning 9/16/99 Corrected WriteImage by calling */
/* Blit_Clip_Region() instead of */
/* Fill_Clip_Region(). Blit used */
/* and updates sRect where fill */
/* did not. sRect needed to be */
/* updated for each new piece of */
/* a region. */
/* BobB 10/22/99 Corrected WriteImage start X and */
/* background color */
/* */
/*************************************************************************/
#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 "regclipv.h"
#include "blit_5.h"
/* Function mwWRIM2_4B is a special case optimization for WriteImage,
2/4 bit per pixel linear memory. Also passes through 1->2/4Bit
WriteImage to mwWRIMM2_4B. */
void mwWRIM2_4B(blitRcd *blitRec)
{
void mwWRIMM2_4B(blitRcd *blitRec);
int Set_Up_Clip(blitRcd *clipBlit, rect *clipR, int blitMayOverlap,
int isLine);
int Blit_Clip_Region(blitRcd *fcRec, rect *fillRect, rect *sRect);
void DrawRectEntryImgM2_4B(blitRcd *blitRec);
void nuResume(grafMap *dstBmap);
void RepDestImgM2_4B(void);
void OXADestImgM2_4B(void);
void SetDestM2_4B(void);
void NotDestSolidImgM2_4B(void);
void InvertDestM2_4B(void);
void QuickEnd(void);
rect *rListPtr; /* list pointer */
int blitMayOverlap = 0; /* Set false for region clipping*/
int isLine = 0; /* Set false */
srcImag = (image *) blitRec->blitSmap;
if(srcImag->imBits == 1) /*is this a monochrome image? */
{
mwWRIMM2_4B(blitRec);/* Let the 1->2/4 bit handler handle */
return;
}
if((srcImag->imWidth <= 0) || (srcImag->imHeight <= 0))
return;
sRect.Ymin = 0;
sRect.Xmin = srcImag->imAlign;
srcPixBytes = srcImag->imBytes;
rListPtr = (rect *) blitRec->blitList;
dstBmap = blitRec->blitDmap;
dstClass = blitRec->blitRop & 0x0f;
M_PAUSE(dstBmap);
dstWidth = dstBmap->pixBytes;
shfCnt = dstBmap->pixBits; /* determine number of bits per pixel */
if (shfCnt == 2)
{ /* 2 bpp */
flipMask = 2;
shiftMask = 0xc0;
firstOffset = 0x03;
}
else
{ /* 4 bpp */
flipMask = 1;
shiftMask = 0xf0;
firstOffset = 0x01;
}
switch (dstClass)
{ /* look up the optimization routine */
/* Memory non-transparent */
case 0: /* zREPz : src */
case 4: /* zNREPz : (NOT src) */
optPtr = &RepDestImgM2_4B;
break;
case 1: /* zORz : src OR dst */
case 2: /* zXORz : src XOR dst */
case 3: /* zNANDz : (NOT src) AND dst */
case 5: /* zNORz : (NOT src) OR dst */
case 6: /* zNXORz : (NOT src) XOR dst */
case 7: /* zANDz : src AND dst */
optPtr = &OXADestImgM2_4B;
break;
case 8: /* zCLEARz : 0's */
case 12: /* zSETz : 1's */
optPtr = &SetDestM2_4B;
break;
case 9: /* zORNz : src OR (NOT dst) */
case 11: /* zANDNz : src AND (NOT dst) */
case 13: /* zNORNz : (NOT src) OR (NOT dst) */
case 15: /* zNANDNz : (NOT src) AND (NOT dst) */
optPtr = &NotDestSolidImgM2_4B;
break;
case 10: /* zNOPz : dst <NOP> */
optPtr = &QuickEnd;
break;
case 14: /* zINVERTz: (NOT dst) */
optPtr = &InvertDestM2_4B;
break;
}
/* modify the pen color as necessary */
switch (dstClass)
{
case 3: /* zNANDz */
case 4: /* zNREPz */
case 5: /* zNORz */
case 6: /* zNXORz */
case 13: /* zNORNz */
case 15: /* zNANDNz */
pnColr = (char)-1; /* this has the effect of notting the
pen color for all operations during this call */
case 0: /* zREPz */
case 1: /* zORz */
case 2: /* zXORz */
case 7: /* zANDz */
case 9: /* zORNz */
case 10: /* zNOPz */
case 11: /* zANDNz */
pnColr = 0;
break;
case 8: /* zCLEARz */
pnColr = 0; /* sets all source bits to 0 */
break;
case 12: /* zSETz */
case 14: /* zINVERTz */
pnColr = (char)-1; /* sets all source bits to 1 */
}
/* set up clipping */
if (Set_Up_Clip(blitRec, &cRect, blitMayOverlap, isLine))
goto WI_RTN;
dRect = *rListPtr;
/* See if the destination is too wide */
if((dRect.Xmax - dRect.Xmin) > srcImag->imWidth)
dRect.Xmax = dRect.Xmin + srcImag->imWidth;
/* sXmax not adjusted because not used */
/* See if the destination is too high */
if((dRect.Ymax - dRect.Ymin) > srcImag->imHeight)
dRect.Ymax = dRect.Ymin + srcImag->imHeight;
/* sYmax not adjusted because not used */
/* do we need to worry about clipping */
if(clipToRectFlag != 0)
{
if (dRect.Xmin < cRect.Xmin)
{ /* Reset src & dst Xmin clip limit */
sRect.Xmin -= (dRect.Xmin - cRect.Xmin);
dRect.Xmin = cRect.Xmin;
}
if (dRect.Ymin < cRect.Ymin)
{ /* Reset src & dst Ymin clip limit */
sRect.Ymin -= (dRect.Ymin - cRect.Ymin);
dRect.Ymin = cRect.Ymin;
}
if (dRect.Xmax > cRect.Xmax)
{ /* Reset src & dst Xmax clip limit */
dRect.Xmax = cRect.Xmax;
/* sXmax not altered because not used */
}
if (dRect.Ymax > cRect.Ymax)
{ /* Reset src & dst Ymax clip limit */
dRect.Ymax = cRect.Ymax;
/* sYmax not altered because not used */
}
if ((dRect.Xmin >= dRect.Xmax) || (dRect.Ymin >= dRect.Ymax))
return;
/* do we need to worry about region clipping? */
if (clipToRegionFlag != 0)
{ /* yes, go do it */
FillDrawer = &DrawRectEntryImgM2_4B;
Blit_Clip_Region(blitRec, &dRect, &sRect);
goto WI_RTN;
}
}
DrawRectEntryImgM2_4B(blitRec);
WI_RTN:
nuResume(dstBmap);
return;
}
/* Draw the image */
void DrawRectEntryImgM2_4B(blitRcd *blitRec)
{
lineCntM1 = dRect.Ymax - dRect.Ymin - 1;
dstBgnByte = (dRect.Xmin >> flipMask);
byteCntM1 = dRect.Xmax - dRect.Xmin - 1;
srcBgnByte = (sRect.Xmin >> flipMask);
optPtr(); /* blit the rectangle */
return;
}
/* Function mwWRIMM2_4B is a special case optimization for 1->2/4Bit
WriteImage. */
void mwWRIMM2_4B(blitRcd *blitRec)
{
void DrawRectEntry1B2_4B(blitRcd *blitRec);
int Set_Up_Clip(blitRcd *clipBlit, rect *clipR, int blitMayOverlap,
int isLine);
int Blit_Clip_Region(blitRcd *fcRec, rect *fillRect, rect *sRect);
void nuResume(grafMap *srcBmap);
void RepDest1M2_4B(void);
void OXADest1M2_4B(void);
void SetDestM2_4B(void);
void NotDestSolid1M2_4B(void);
void InvertDestM2_4B(void);
void QuickEnd(void);
void SetTrans1M2_4B(void);
void InvertTrans1M2_4B(void);
rect *rListPtr; /* list pointer */
int blitMayOverlap = 0; /* Set false for region clipping*/
int isLine = 0; /* Set false */
srcImag = (image *) blitRec->blitSmap;
if((srcImag->imWidth <= 0) || (srcImag->imHeight <= 0))
return;
sRect.Ymin = 0;
/* BobB 10/22/99 - corrected start X
sRect.Xmin = 0; */
sRect.Xmin = srcImag->imAlign;
srcPixBytes = srcImag->imBytes;
rListPtr = (rect *) blitRec->blitList;
dstBmap = blitRec->blitDmap;
dstClass = blitRec->blitRop & 0x1f;
M_PAUSE(dstBmap);
bkColr = (char) blitRec->blitBack; /* background color */
pnColr = (char) blitRec->blitFore; /* foreground color */
switch (dstClass)
{ /* look up the optimization routine */
/* Memory non-transparent */
case 0: /* zREPz : src */
case 4: /* zNREPz : (NOT src) */
optPtr = &RepDest1M2_4B;
break;
case 1: /* zORz : src OR dst */
case 2: /* zXORz : src XOR dst */
case 3: /* zNANDz : (NOT src) AND dst */
case 5: /* zNORz : (NOT src) OR dst */
case 6: /* zNXORz : (NOT src) XOR dst */
case 7: /* zANDz : src AND dst */
optPtr = &OXADest1M2_4B;
break;
case 8: /* zCLEARz : 0's */
case 12: /* zSETz : 1's */
optPtr = &SetDestM2_4B;
break;
case 9: /* zORNz : src OR (NOT dst) */
case 11: /* zANDNz : src AND (NOT dst) */
case 13: /* zNORNz : (NOT src) OR (NOT dst) */
case 15: /* zNANDNz : (NOT src) AND (NOT dst) */
optPtr = &NotDestSolid1M2_4B;
break;
case 10: /* zNOPz : dst <NOP> */
optPtr = &QuickEnd;
break;
case 14: /* zINVERTz: (NOT dst) */
optPtr = &InvertDestM2_4B;
break;
/* Memory transparent */
case 16: /* xREPx : !0src */
case 17: /* xORx : !0src OR dst */
case 25: /* xORNx : !0src OR (NOT dst) */
case 28: /* xSETx : 1's */
optPtr = &SetTrans1M2_4B;
break;
case 18: /* xXORx : !0src XOR dst */
case 27: /* xANDNx : !0src AND (NOT dst) */
case 30: /* xINVERTx: (NOT dst) */
optPtr = &InvertTrans1M2_4B;
break;
case 19: /* xNANDx : (NOT !0src) AND dst */
case 20: /* xNREPx : (NOT !0src) */
case 21: /* xNORx : (NOT !0src) OR dst */
case 22: /* xNXORx : (NOT !0src) XOR dst */
case 23: /* xANDx : !0src AND dst */
case 24: /* xCLEARx : 0's */
case 26: /* xNOPx : dst <NOP> */
case 29: /* xNORNx : (NOT !0src) OR (NOT dst) */
case 31: /* xNANDNx : (NOT !0src) AND (NOT dst) */
optPtr = &QuickEnd;
break;
}
/* modify the pen color as necessary */
switch (dstClass)
{
case 3: /* zNANDz */
case 4: /* zNREPz */
case 5: /* zNORz */
case 6: /* zNXORz */
case 13: /* zNORNz */
case 15: /* zNANDNz */
pnColr = ~pnColr; /* this has the effect of notting the
pen color for all operations during this call */
case 0: /* zREPz */
case 1: /* zORz */
case 2: /* zXORz */
case 7: /* zANDz */
case 9: /* zORNz */
case 10: /* zNOPz */
case 11: /* zANDNz */
break;
case 8: /* zCLEARz */
pnColr = 0; /* sets all source bits to 0 */
break;
case 12: /* zSETz */
case 14: /* zINVERTz */
pnColr = (char)-1; /* sets all source bits to 1 */
break;
default: /* all transparent cases */
break;
}
dstWidth = dstBmap->pixBytes;
shfCnt = dstBmap->pixBits; /* determine number of bits per pixel */
if (shfCnt == 2)
{ /* 2 bpp */
flipMask = 2;
shiftMask = 0xc0;
firstOffset = 0x03;
pnColr = pnColr & 0x03;
/* BobB 1/15/99 - corrected for image shifting */
pnColr = pnColr | (pnColr << 2);
pnColr = pnColr | (pnColr << 4);
/* BobB 10/22/99 - added background color */
bkColr = bkColr & 0x03;
bkColr = bkColr | (bkColr << 2);
bkColr = bkColr | (bkColr << 4);
}
else
{ /* 4 bpp */
flipMask = 1;
shiftMask = 0xf0;
firstOffset = 0x01;
pnColr = pnColr & 0x0f;
/* BobB 1/15/99 - corrected for image shifting */
pnColr = pnColr | (pnColr << 4);
/* BobB 10/15/99 - added background color */
bkColr = bkColr & 0x0f;
bkColr = bkColr | (bkColr << 4);
}
/* set up clipping */
if (Set_Up_Clip(blitRec, &cRect, blitMayOverlap, isLine))
goto WI1_RTN;
dRect = *rListPtr;
/* See if the destination is too wide */
if((dRect.Xmax - dRect.Xmin) > srcImag->imWidth)
dRect.Xmax = dRect.Xmin + srcImag->imWidth;
/* sXmax not adjusted because not used */
/* See if the destination is too high */
if((dRect.Ymax - dRect.Ymin) > srcImag->imHeight)
dRect.Ymax = dRect.Ymin + srcImag->imHeight;
/* sYmax not adjusted because not used */
/* do we need to worry about clipping */
if(clipToRectFlag != 0)
{
if (dRect.Xmin < cRect.Xmin)
{ /* Reset src & dst Xmin clip limit */
sRect.Xmin -= (dRect.Xmin - cRect.Xmin);
dRect.Xmin = cRect.Xmin;
}
if (dRect.Ymin < cRect.Ymin)
{ /* Reset src & dst Ymin clip limit */
sRect.Ymin -= (dRect.Ymin - cRect.Ymin);
dRect.Ymin = cRect.Ymin;
}
if (dRect.Xmax > cRect.Xmax)
{ /* Reset dst Xmax clip limit */
dRect.Xmax = cRect.Xmax;
}
if (dRect.Ymax > cRect.Ymax)
{ /* Reset dst Ymax clip limit */
dRect.Ymax = cRect.Ymax;
}
if ((dRect.Xmin >= dRect.Xmax) || (dRect.Ymin >= dRect.Ymax))
return;
/* do we need to worry about region clipping? */
if (clipToRegionFlag != 0)
{ /* yes, go do it */
FillDrawer = &DrawRectEntry1B2_4B;
Blit_Clip_Region(blitRec, &dRect, &sRect);
goto WI1_RTN;
}
}
DrawRectEntry1B2_4B(blitRec);
WI1_RTN:
nuResume(dstBmap);
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