📄 sa2video.cpp
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bounds.right = pParms->xStart + 1;
bounds.bottom = pParms->yStart + 1;
bounds.left = pParms->xStart - pParms->cPels;
bounds.top = bounds.bottom - N_plus_1;
break;
case 5:
bounds.right = pParms->xStart + 1;
bounds.bottom = pParms->yStart + 1;
bounds.top = pParms->yStart - pParms->cPels;
bounds.left = bounds.right - N_plus_1;
break;
case 6:
bounds.left = pParms->xStart;
bounds.bottom = pParms->yStart + 1;
bounds.top = pParms->yStart - pParms->cPels;
bounds.right = bounds.left + N_plus_1;
break;
case 7:
bounds.left = pParms->xStart;
bounds.bottom = pParms->yStart + 1;
bounds.right = pParms->xStart + pParms->cPels + 1;
bounds.top = bounds.bottom - N_plus_1;
break;
default:
DEBUGMSG(GPE_ZONE_ERROR,(TEXT("Invalid direction: %d\r\n"),pParms->iDir));
return E_INVALIDARG;
}
DispDrvrDirtyRectDump((LPRECT)&bounds);
}
return code;
}
#undef SWAP
#define SWAP(a,b,type) { type tmp=a; a=b; b=tmp; }
int EmulatedBltFill16_C(WORD* pDst, WORD color, int width, int height, unsigned int step)
{
int r, w;
step >>= 1; //in 16-bit
step -= width;
for ( r = 0; r < height; r ++ ) {
for ( w = 0; w < width; w ++ ) {
*pDst++ = color;
}
pDst += step;
}
return 0;
}
extern "C" SCODE EmulatedBltFill16ASM(WORD* pDst, WORD color, int width, int height, unsigned int step);
SCODE EmulatedBltSrcCopy0416( GPEBltParms *pParms );
SCODE EmulatedBltSrcCopy0116( GPEBltParms *pParms );
SCODE EmulatedBltSrcCopy0808( GPEBltParms *pParms );
SCODE EmulatedBltSrcCopy0408( GPEBltParms *pParms );
SCODE EmulatedBltSrcCopy0108( GPEBltParms *pParms );
__inline SCODE EmulatedBltFill16_Eml( GPEBltParms *pBltParms )
{
DEBUGMSG(GPE_ZONE_BLT_HI,(TEXT("EmulatedBltFill16\r\n")));
UINT32 iDstScanStride = pBltParms->pDst->Stride();
BYTE *pbDibBitsDst = (BYTE *)pBltParms->pDst->Buffer();
PRECTL prcDst = pBltParms->prclDst;
DWORD dwOnColorIndex = pBltParms->solidColor;
int iNumDstRows = prcDst->bottom - prcDst->top;
int iNumDstCols = prcDst->right - prcDst->left;
// Compute pointer to the starting rows in the dst bitmap
WORD *pwDstScanLine = (WORD *)(pbDibBitsDst + prcDst->top * iDstScanStride + prcDst->left * 2);
WORD wColor = (WORD)dwOnColorIndex;
EmulatedBltFill16ASM(pwDstScanLine, wColor, iNumDstCols, iNumDstRows, iDstScanStride);
return S_OK;
}
#define BLOCK_OP(pbDst, pbSrc, cBytes) memmove(pbDst, pbSrc, cBytes)
#define SCRCOPY_ASM
extern "C" void EmulatedBltSrcCopy1616ASM(WORD* pwScanLineSrc, WORD *pwScanLineDst, int width, int height, UINT32 iScanStrideSrc, UINT32 iScanStrideDst);
#define _MM_OPT_ASM
#ifdef _MM_OPT_ASM
extern "C"
{
void Memmove1616_ASM_LE16(WORD* pSrc, WORD *pDst, int len) ;
void Memmove1616_ASM_GT16(WORD* pSrc, WORD *pDst, int len) ;
}
#else
#include "ebcopy1616.h"
#endif
SCODE EmulatedBltSrcCopy1616_Eml( GPEBltParms *pBltParms )
{
// Source-related info
PRECTL prcSrc = pBltParms->prclSrc;
UINT32 iScanStrideSrc = pBltParms->pSrc->Stride()/sizeof(WORD);
WORD *pwScanLineSrc = (WORD *)pBltParms->pSrc->Buffer() +
prcSrc->top * iScanStrideSrc +
prcSrc->left;
// Dest-related info
PRECTL prcDst = pBltParms->prclDst;
UINT32 iScanStrideDst = pBltParms->pDst->Stride()/sizeof(WORD);
WORD *pwScanLineDst = (WORD *)pBltParms->pDst->Buffer() +
prcDst->top * iScanStrideDst +
prcDst->left;
int cRows = prcDst->bottom - prcDst->top;
int cCols = prcDst->right - prcDst->left;
// Make sure to copy source before overwriting.
if (!pBltParms->yPositive)
{
// Scan from end of memory, and negate stride
pwScanLineSrc += iScanStrideSrc * (cRows - 1);
pwScanLineDst += iScanStrideDst * (cRows - 1);
iScanStrideSrc = (UINT32)-(INT32)iScanStrideSrc;
iScanStrideDst = (UINT32)-(INT32)iScanStrideDst;
}
#ifdef SCRCOPY_ASM
EmulatedBltSrcCopy1616ASM(pwScanLineSrc, pwScanLineDst, cCols, cRows,
iScanStrideSrc, iScanStrideDst);
#else
//
// Do the copy line by line.
//
//EmulatedBltSrcCopy1616_CO(pwScanLineSrc, pwScanLineDst, cCols, cRows,
// iScanStrideSrc, iScanStrideDst, xPositive);
for (int row = 0; row < cRows; row++)
{
//BLOCK_OP(pwScanLineDst, pwScanLineSrc, cCols*sizeof(WORD));
if ( cCols < 8 ) {
#ifndef _MM_OPT_ASM
Memmove1616_C_SIMPLE(pwScanLineSrc, pwScanLineDst, cCols);
#else
Memmove1616_ASM_LE16(pwScanLineSrc, pwScanLineDst, cCols);
#endif
} else {
#ifndef _MM_OPT_ASM
Memmove1616_C(pwScanLineSrc, pwScanLineDst, cCols);
#else
Memmove1616_ASM_GT16(pwScanLineSrc, pwScanLineDst, cCols);
#endif
}
pwScanLineSrc += iScanStrideSrc;
pwScanLineDst += iScanStrideDst;
}
#endif
return S_OK;
}
#define SHIFT_ONE_MASK 0x7BEF
#define SHIFT_TWO_MASK 0x39E7
extern "C" void EmulatedBltText16ASM(BYTE* pSrcMask, WORD* pDstPixel, WORD color, int width, int height, unsigned int stepMask, unsigned int stepDst, int OffsetSrc);
__inline SCODE EmulatedBltAlphaText16_Eml( GPEBltParms *pParms )
{
DEBUGMSG(GPE_ZONE_BLT_HI,(TEXT("EmulatedBltAlphaText16\r\n")));
UINT32 iDstScanStride = pParms->pDst->Stride();
BYTE *pDibBitsDst = (BYTE *)pParms->pDst->Buffer();
UINT32 iSrcScanStride = pParms->pMask->Stride();
BYTE *pDibBitsSrc = (BYTE *)pParms->pMask->Buffer();
PRECTL prcSrc = pParms->prclMask;
PRECTL prcDst = pParms->prclDst;
WORD wOnColor[5];
int iNumDstRows;
int iNumDstCols;
BYTE *pbSrcScanLine;
BYTE *pbDstScanLine;
BYTE *pbSrc;
WORD *pwDstPixel;
int i;
int j;
BOOL bOdd;
BYTE bSrc;
// Caller assures a well-ordered, non-empty rect
// compute size of destination rect
iNumDstCols = prcDst->right - prcDst->left;
iNumDstRows = prcDst->bottom - prcDst->top;
// compute pointers to the starting rows in the src and dst bitmaps
pbSrcScanLine = pDibBitsSrc + prcSrc->top * iSrcScanStride + (prcSrc->left >> 1);
pbDstScanLine = pDibBitsDst + prcDst->top * iDstScanStride + prcDst->left * 2;
// Create pixel values with 0/4, 1/4, 2/4, 3/4 and 4/4 of the solid brush color
wOnColor[0] = 0;
wOnColor[4] = (WORD)pParms->solidColor;
wOnColor[2] = (wOnColor[4] >> 1 ) & SHIFT_ONE_MASK;
wOnColor[1] = (wOnColor[4] >> 2 ) & SHIFT_TWO_MASK;
wOnColor[3] = wOnColor[1] + wOnColor[2];
for (i = 0; i < iNumDstRows; i++)
{
// set up pointers to first bytes on src and dst scanlines
pbSrc = pbSrcScanLine;
pwDstPixel = (WORD *)pbDstScanLine;
bOdd = prcSrc->left & 1;
for (j = 0; j < iNumDstCols; j++ )
{
if (bOdd)
bSrc = *pbSrc++ & 0xF;
else
bSrc = *pbSrc >> 4;
bOdd = !bOdd;
switch ( (bSrc + 1) >> 2 ) // src pixel in range 0...4
{
case 0:
// Leave destination untouched
break;
case 1:
// 3/4 destination color and 1/4 brush color
*pwDstPixel = ((*pwDstPixel >> 2) & SHIFT_TWO_MASK)
+ ((*pwDstPixel >> 1) & SHIFT_ONE_MASK) + wOnColor[1];
break;
case 2:
// 1/2 destination color and 1/2 brush color
*pwDstPixel = ((*pwDstPixel >> 1) & SHIFT_ONE_MASK) + wOnColor[2];
break;
case 3:
// 1/4 destination color and 3/4 brush color
*pwDstPixel = ((*pwDstPixel >> 2) & SHIFT_TWO_MASK) + wOnColor[3];
break;
case 4:
// Fill with solid brush color
*pwDstPixel = wOnColor[4];
break;
default:
DebugBreak();
}
pwDstPixel++;
}
// advance to next scanline
pbSrcScanLine += iSrcScanStride;
pbDstScanLine += iDstScanStride;
}
return S_OK;
}
__inline SCODE EmulatedBltText16_Eml( GPEBltParms *pParms )
{
DEBUGMSG(GPE_ZONE_BLT_HI,(TEXT("EmulatedBltText16\r\n")));
UINT32 iDstScanStride = pParms->pDst->Stride();
BYTE *pDibBitsDst = (BYTE *)pParms->pDst->Buffer();
UINT32 iSrcScanStride = pParms->pMask->Stride();
BYTE *pDibBitsSrc = (BYTE *)pParms->pMask->Buffer();
PRECTL prcSrc = pParms->prclMask;
PRECTL prcDst = pParms->prclDst;
unsigned int wOnColor = (unsigned int)pParms->solidColor;
int iSrcBitOffset;
int iNumDstRows;
int iNumDstCols;
BYTE *pbSrcScanLine;
BYTE *pbDstScanLine;
WORD *pwDstPixel;
// Caller assures a well-ordered, non-empty rect
// compute size of destination rect
iNumDstCols = prcDst->right - prcDst->left;
iNumDstRows = prcDst->bottom - prcDst->top;
// compute pointers to the starting rows in the src and dst bitmaps
pbSrcScanLine = pDibBitsSrc + prcSrc->top * iSrcScanStride + (prcSrc->left >> 3);
iSrcBitOffset = prcSrc->left & 0x07;
pbDstScanLine = pDibBitsDst + prcDst->top * iDstScanStride + prcDst->left * 2;
pwDstPixel = (WORD *)pbDstScanLine;
EmulatedBltText16ASM(pbSrcScanLine,pwDstPixel, wOnColor, iNumDstCols, iNumDstRows, iSrcScanStride, iDstScanStride, iSrcBitOffset);
return S_OK;
}
SCODE SA2Video::Line(GPELineParms *pLineParms,EGPEPhase phase)
{
if(phase == gpeSingle || phase == gpePrepare)
{
if(pLineParms->pDst != m_pPrimarySurface)
pLineParms->pLine = EmulatedLine;
else
pLineParms->pLine = (SCODE (GPE::*)(struct GPELineParms *))WrappedEmulatedLine;
}
return S_OK;
}
#undef SWAP
#define SWAP(type,a,b) { type tmp; tmp=a; a=b; b=tmp; }
SCODE SA2Video::WrappedEmulatedBlt(GPEBltParms *pParms)
{
SCODE code;
RECT bounds;
if ( !( (pParms->bltFlags & (BLT_TRANSPARENT | BLT_STRETCH)) || (pParms->pLookup) || (pParms->pConvert) ) )
{
if ( pParms->rop4 == 0xcccc ) {
if ( EGPEFormatToBpp[pParms->pDst->Format()] == 16 ) {
if ( EGPEFormatToBpp[pParms->pSrc->Format()] == 16 ) {
code = EmulatedBltSrcCopy1616_Eml( pParms );
goto contd;
}
}
}
// prclDst is now properly ordered
else if ( pParms->rop4 == 0xf0f0 ) {
if ( EGPEFormatToBpp[pParms->pDst->Format()] == 16 ) {
if (pParms->solidColor != -1) { // must be a solid colored brush
code = EmulatedBltFill16_Eml( pParms );
goto contd;
}
}
}
else if( (pParms->rop4 == 0xaaf0) && ( EGPEFormatToBpp[pParms->pDst->Format()] == 16 ) ) {
if (pParms->solidColor != -1)
{
if (pParms->pMask->Format() == gpe1Bpp)
{
code = EmulatedBltText16_Eml(pParms);
goto contd;
}
else if (pParms->pMask->Format() == gpe4Bpp)
{
code = EmulatedBltAlphaText16_Eml(pParms);
goto contd;
}
}
}
}
code = EmulatedBlt(pParms); // Draw to the framebuffer
if(FAILED(code))
return code;
contd:
if (bDoRotation)
{
bounds.left = pParms->prclDst->left;
bounds.top = pParms->prclDst->top;
bounds.right = pParms->prclDst->right;
bounds.bottom = pParms->prclDst->bottom;
if(bounds.left > bounds.right) {
SWAP(int,bounds.left,bounds.right)
}
if( bounds.top > bounds.bottom) {
SWAP(int,bounds.top,bounds.bottom)
}
if (bounds.top == bounds.bottom-1)
{
if ( !( (pParms->bltFlags & (BLT_TRANSPARENT | BLT_STRETCH)) || (pParms->pLookup) || (pParms->pConvert) ) )
{
if ( pParms->rop4 == 0xf0f0 ) {
if ( EGPEFormatToBpp[pParms->pDst->Format()] == 16 ) {
if (pParms->solidColor != -1) { // must be a solid colored brush
if (!gDrawCursorFlag) {
DispDrvrDirtyRectDump2((LPRECT)&bounds,pParms->solidColor);
return S_OK;
}
}
}
}
}
}
if ( !( (pParms->bltFlags & (BLT_TRANSPARENT | BLT_STRETCH)) || (pParms->pLookup) || (pParms->pConvert) ) )
{
if ( pParms->rop4 == 0xf0f0 ) {
if ( EGPEFormatToBpp[pParms->pDst->Format()] == 16 ) {
if (pParms->solidColor != -1) { // must be a solid colored brush
DispDrvrDirtyRectDump_rectfill((LPRECT)&bounds,pParms->solidColor);
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