?? s3c2440x_lcd.cpp
字號:
// Allocate from system memory
*surface = new GPESurf(width, height, format);
if (*surface != NULL)
{
// Check that the bits were allocated succesfully
if (((*surface)->Buffer()) == NULL)
{
delete *surface; // Clean up
}
else
{
return S_OK;
}
}
return E_OUTOFMEMORY;
}
SCODE S3C2440DISP::WrappedEmulatedLine (GPELineParms *lineParameters)
{
SCODE retval;
RECT bounds;
int N_plus_1; // Minor length of bounding rect + 1
// calculate the bounding-rect to determine overlap with cursor
if (lineParameters->dN) // The line has a diagonal component (we'll refresh the bounding rect)
{
N_plus_1 = 2 + ((lineParameters->cPels * lineParameters->dN) / lineParameters->dM);
}
else
{
N_plus_1 = 1;
}
switch(lineParameters->iDir)
{
case 0:
bounds.left = lineParameters->xStart;
bounds.top = lineParameters->yStart;
bounds.right = lineParameters->xStart + lineParameters->cPels + 1;
bounds.bottom = bounds.top + N_plus_1;
break;
case 1:
bounds.left = lineParameters->xStart;
bounds.top = lineParameters->yStart;
bounds.bottom = lineParameters->yStart + lineParameters->cPels + 1;
bounds.right = bounds.left + N_plus_1;
break;
case 2:
bounds.right = lineParameters->xStart + 1;
bounds.top = lineParameters->yStart;
bounds.bottom = lineParameters->yStart + lineParameters->cPels + 1;
bounds.left = bounds.right - N_plus_1;
break;
case 3:
bounds.right = lineParameters->xStart + 1;
bounds.top = lineParameters->yStart;
bounds.left = lineParameters->xStart - lineParameters->cPels;
bounds.bottom = bounds.top + N_plus_1;
break;
case 4:
bounds.right = lineParameters->xStart + 1;
bounds.bottom = lineParameters->yStart + 1;
bounds.left = lineParameters->xStart - lineParameters->cPels;
bounds.top = bounds.bottom - N_plus_1;
break;
case 5:
bounds.right = lineParameters->xStart + 1;
bounds.bottom = lineParameters->yStart + 1;
bounds.top = lineParameters->yStart - lineParameters->cPels;
bounds.left = bounds.right - N_plus_1;
break;
case 6:
bounds.left = lineParameters->xStart;
bounds.bottom = lineParameters->yStart + 1;
bounds.top = lineParameters->yStart - lineParameters->cPels;
bounds.right = bounds.left + N_plus_1;
break;
case 7:
bounds.left = lineParameters->xStart;
bounds.bottom = lineParameters->yStart + 1;
bounds.right = lineParameters->xStart + lineParameters->cPels + 1;
bounds.top = bounds.bottom - N_plus_1;
break;
default:
RETAILMSG(0, (TEXT("Invalid direction: %d\r\n"), lineParameters->iDir));
return E_INVALIDARG;
}
// check for line overlap with cursor and turn off cursor if overlaps
if (m_CursorVisible && !m_CursorDisabled &&
m_CursorRect.top < bounds.bottom && m_CursorRect.bottom > bounds.top &&
m_CursorRect.left < bounds.right && m_CursorRect.right > bounds.left)
{
CursorOff();
m_CursorForcedOff = TRUE;
}
// do emulated line
retval = EmulatedLine (lineParameters);
// se if cursor was forced off because of overlap with line bouneds and turn back on
if (m_CursorForcedOff)
{
m_CursorForcedOff = FALSE;
CursorOn();
}
return retval;
}
SCODE S3C2440DISP::Line(GPELineParms *lineParameters, EGPEPhase phase)
{
RETAILMSG(0, (TEXT("S3C2440DISP::Line\r\n")));
if (phase == gpeSingle || phase == gpePrepare)
{
if ((lineParameters->pDst != m_pPrimarySurface))
{
lineParameters->pLine = EmulatedLine;
}
else
{
lineParameters->pLine = (SCODE (GPE::*)(struct GPELineParms *)) WrappedEmulatedLine;
}
}
return S_OK;
}
SCODE S3C2440DISP::BltPrepare(GPEBltParms *blitParameters)
{
RECTL rectl;
RETAILMSG(0, (TEXT("S3C2440DISP::BltPrepare\r\n")));
// default to base EmulatedBlt routine
blitParameters->pBlt = EmulatedBlt;
// see if we need to deal with cursor
if (m_CursorVisible && !m_CursorDisabled)
{
// check for destination overlap with cursor and turn off cursor if overlaps
if (blitParameters->pDst == m_pPrimarySurface) // only care if dest is main display surface
{
if (blitParameters->prclDst != NULL) // make sure there is a valid prclDst
{
rectl = *blitParameters->prclDst; // if so, use it
}
else
{
rectl = m_CursorRect; // if not, use the Cursor rect - this forces the cursor to be turned off in this case
}
if (m_CursorRect.top < rectl.bottom && m_CursorRect.bottom > rectl.top &&
m_CursorRect.left < rectl.right && m_CursorRect.right > rectl.left)
{
CursorOff();
m_CursorForcedOff = TRUE;
}
}
// check for source overlap with cursor and turn off cursor if overlaps
if (blitParameters->pSrc == m_pPrimarySurface) // only care if source is main display surface
{
if (blitParameters->prclSrc != NULL) // make sure there is a valid prclSrc
{
rectl = *blitParameters->prclSrc; // if so, use it
}
else
{
rectl = m_CursorRect; // if not, use the CUrsor rect - this forces the cursor to be turned off in this case
}
if (m_CursorRect.top < rectl.bottom && m_CursorRect.bottom > rectl.top &&
m_CursorRect.left < rectl.right && m_CursorRect.right > rectl.left)
{
CursorOff();
m_CursorForcedOff = TRUE;
}
}
}
#ifdef ROTATE
if (m_iRotate && (blitParameters->pDst == m_pPrimarySurface || blitParameters->pSrc == m_pPrimarySurface))
{
blitParameters->pBlt = (SCODE (GPE::*)(GPEBltParms *))EmulatedBltRotate;
}
#endif //ROTATE
#ifdef CLEARTYPE
if (((blitParameters->rop4 & 0xffff) == 0xaaf0 ) && (blitParameters->pMask->Format() == gpe8Bpp))
{
switch (m_colorDepth)
{
case 16:
blitParameters->pBlt = (SCODE (GPE::*)(struct GPEBltParms *)) ClearTypeBlt::ClearTypeBltDst16;
return S_OK;
case 24:
blitParameters->pBlt = (SCODE (GPE::*)(struct GPEBltParms *)) ClearTypeBlt::ClearTypeBltDst24;
return S_OK;
case 32:
blitParameters->pBlt = (SCODE (GPE::*)(struct GPEBltParms *)) ClearTypeBlt::ClearTypeBltDst32;
return S_OK;
default:
break;
}
}
#endif //CLEARTYPE
// see if there are any optimized software blits available
EmulatedBltSelect02(blitParameters);
EmulatedBltSelect08(blitParameters);
EmulatedBltSelect16(blitParameters);
return S_OK;
}
SCODE S3C2440DISP::BltComplete(GPEBltParms *blitParameters)
{
RETAILMSG(0, (TEXT("S3C2440DISP::BltComplete\r\n")));
// see if cursor was forced off because of overlap with source or destination and turn back on
if (m_CursorForcedOff)
{
m_CursorForcedOff = FALSE;
CursorOn();
}
return S_OK;
}
INT S3C2440DISP::InVBlank(void)
{
RETAILMSG(0, (TEXT("S3C2440DISP::InVBlank\r\n")));
return 0;
}
SCODE S3C2440DISP::SetPalette(const PALETTEENTRY *source, USHORT firstEntry, USHORT numEntries)
{
RETAILMSG(0, (TEXT("S3C2440DISP::SetPalette\r\n")));
if (firstEntry < 0 || firstEntry + numEntries > 256 || source == NULL)
{
return E_INVALIDARG;
}
return S_OK;
}
ULONG S3C2440DISP::GetGraphicsCaps()
{
#ifdef CLEARTYPE
return GCAPS_GRAY16 | GCAPS_CLEARTYPE;
#else
return GCAPS_GRAY16;
#endif
}
void RegisterDDHALAPI(void)
{
return; // no DDHAL support
}
#if defined(CLEARTYPE) || defined(ROTATE)
extern GetGammaValue(ULONG * pGamma);
extern SetGammaValue(ULONG ulGamma, BOOL bUpdateReg);
ULONG S3C2440DISP::DrvEscape(
SURFOBJ *pso,
ULONG iEsc,
ULONG cjIn,
PVOID pvIn,
ULONG cjOut,
PVOID pvOut)
{
if (iEsc == DRVESC_GETGAMMAVALUE)
{
return GetGammaValue((ULONG *)pvOut);
}
else if (iEsc == DRVESC_SETGAMMAVALUE)
{
return SetGammaValue(cjIn, *(BOOL *)pvIn);
}
#ifdef ROTATE
if (iEsc == DRVESC_GETSCREENROTATION)
{
*(int *)pvOut = ((DMDO_0 | DMDO_90 | DMDO_180 | DMDO_270) << 8) | ((BYTE)m_iRotate);
return DISP_CHANGE_SUCCESSFUL;
}
else if (iEsc == DRVESC_SETSCREENROTATION)
{
if ((cjIn == DMDO_0) ||
(cjIn == DMDO_90) ||
(cjIn == DMDO_180) ||
(cjIn == DMDO_270) )
{
return DynRotate(cjIn);
}
return DISP_CHANGE_BADMODE;
}
#endif //ROTATE & ROTATE
return 0;
}
#endif //CLEARTYPE
ULONG *APIENTRY DrvGetMasks(DHPDEV dhpdev)
{
return gBitMasks;
}
#ifdef ROTATE
void S3C2440DISP::SetRotateParms()
{
int iswap;
switch(m_iRotate)
{
case DMDO_0:
m_nScreenHeightSave = m_nScreenHeight;
m_nScreenWidthSave = m_nScreenWidth;
break;
case DMDO_180:
m_nScreenHeightSave = m_nScreenHeight;
m_nScreenWidthSave = m_nScreenWidth;
break;
case DMDO_90:
case DMDO_270:
iswap = m_nScreenHeight;
m_nScreenHeight = m_nScreenWidth;
m_nScreenWidth = iswap;
m_nScreenHeightSave = m_nScreenWidth;
m_nScreenWidthSave = m_nScreenHeight;
break;
default:
m_nScreenHeightSave = m_nScreenHeight;
m_nScreenWidthSave = m_nScreenWidth;
break;
}
return;
}
LONG S3C2440DISP::DynRotate(int angle)
{
GPESurfRotate *pSurf = (GPESurfRotate *)m_pPrimarySurface;
if (angle == m_iRotate)
return DISP_CHANGE_SUCCESSFUL;
m_iRotate = angle;
switch(m_iRotate)
{
case DMDO_0:
case DMDO_180:
m_nScreenHeight = m_nScreenHeightSave;
m_nScreenWidth = m_nScreenWidthSave;
break;
case DMDO_90:
case DMDO_270:
m_nScreenHeight = m_nScreenWidthSave;
m_nScreenWidth = m_nScreenHeightSave;
break;
}
m_pMode->width = m_nScreenWidth;
m_pMode->height = m_nScreenHeight;
pSurf->SetRotation(m_nScreenWidth, m_nScreenHeight, angle);
return DISP_CHANGE_SUCCESSFUL;
}
#endif //ROTATE
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