s3c2410disp.cpp

SBC2410 WinCE 5.0 BSP.绝大多数驱动已经调通。

	UCHAR	*andLine;		// output pointer
	UCHAR	*xorLine;		// output pointer
	char	bAnd;
	char	bXor;
	int		row;
	int		col;
	int		i;
	int		bitMask;

	RETAILMSG(0, (TEXT("S3C2410DISP::SetPointerShape(0x%X, 0x%X, %d, %d, %d, %d)\r\n"),pMask, pColorSurf, xHot, yHot, cX, cY));

	// turn current cursor off
	CursorOff();

	// release memory associated with old cursor
	if (m_CursorBackingStore)
	{
		delete (void*)m_CursorBackingStore;
		m_CursorBackingStore = NULL;
	}
	if (m_CursorXorShape)
	{
		delete (void*)m_CursorXorShape;
        m_CursorXorShape = NULL;
	}
	if (m_CursorAndShape)
	{
		delete (void*)m_CursorAndShape;
        m_CursorAndShape = NULL;
	}

	if (!pMask)							// do we have a new cursor shape
	{
		m_CursorDisabled = TRUE;		// no, so tag as disabled
	}
	else
	{
		m_CursorDisabled = FALSE;		// yes, so tag as not disabled

		// allocate memory based on new cursor size
        m_CursorBackingStore = new UCHAR[(cX * (m_colorDepth >> 3)) * cY];
        m_CursorXorShape = new UCHAR[cX * cY];
        m_CursorAndShape = new UCHAR[cX * cY];

		// store size and hotspot for new cursor
		m_CursorSize.x = cX;
		m_CursorSize.y = cY;
		m_CursorHotspot.x = xHot;
		m_CursorHotspot.y = yHot;

		andPtr = (UCHAR*)pMask->Buffer();
		xorPtr = (UCHAR*)pMask->Buffer() + (cY * pMask->Stride());

		// store OR and AND mask for new cursor
		for (row = 0; row < cY; row++)
		{
			andLine = &m_CursorAndShape[cX * row];
			xorLine = &m_CursorXorShape[cX * row];

			for (col = 0; col < cX / 8; col++)
			{
				bAnd = andPtr[row * pMask->Stride() + col];
				bXor = xorPtr[row * pMask->Stride() + col];

				for (bitMask = 0x0080, i = 0; i < 8; bitMask >>= 1, i++)
				{
					andLine[(col * 8) + i] = bAnd & bitMask ? 0xFF : 0x00;
					xorLine[(col * 8) + i] = bXor & bitMask ? 0xFF : 0x00;
				}
			}
		}
	}

	return	S_OK;
}

SCODE	S3C2410DISP::MovePointer(INT xPosition, INT yPosition)
{
	RETAILMSG(0, (TEXT("S3C2410DISP::MovePointer(%d, %d)\r\n"), xPosition, yPosition));

	CursorOff();

	if (xPosition != -1 || yPosition != -1)
	{
		// compute new cursor rect
		m_CursorRect.left = xPosition - m_CursorHotspot.x;
		m_CursorRect.right = m_CursorRect.left + m_CursorSize.x;
		m_CursorRect.top = yPosition - m_CursorHotspot.y;
		m_CursorRect.bottom = m_CursorRect.top + m_CursorSize.y;

		CursorOn();
	}

	return	S_OK;
}

void	S3C2410DISP::WaitForNotBusy(void)
{
	RETAILMSG(0, (TEXT("S3C2410DISP::WaitForNotBusy\r\n")));
	return;
}

int		S3C2410DISP::IsBusy(void)
{
	RETAILMSG(0, (TEXT("S3C2410DISP::IsBusy\r\n")));
	return	0;
}

void	S3C2410DISP::GetPhysicalVideoMemory(unsigned long *physicalMemoryBase, unsigned long *videoMemorySize)
{
	RETAILMSG(0, (TEXT("S3C2410DISP::GetPhysicalVideoMemory\r\n")));

	*physicalMemoryBase = gdwLCDVirtualFrameBase;
	*videoMemorySize = m_cbScanLineLength * m_nScreenHeight;
}

SCODE	S3C2410DISP::AllocSurface(GPESurf **surface, INT width, INT height, EGPEFormat format, INT surfaceFlags)
{
	RETAILMSG(0, (TEXT("S3C2410DISP::AllocSurface\r\n")));

	if (surfaceFlags & GPE_REQUIRE_VIDEO_MEMORY)
	{
		return	E_OUTOFMEMORY;
	}

	// 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	S3C2410DISP::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	S3C2410DISP::Line(GPELineParms *lineParameters, EGPEPhase phase)
{
	RETAILMSG(0, (TEXT("S3C2410DISP::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	S3C2410DISP::BltPrepare(GPEBltParms *blitParameters)
{
	RECTL	rectl;

	RETAILMSG(0, (TEXT("S3C2410DISP::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	S3C2410DISP::BltComplete(GPEBltParms *blitParameters)
{
	RETAILMSG(0, (TEXT("S3C2410DISP::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		S3C2410DISP::InVBlank(void)
{
	RETAILMSG(0, (TEXT("S3C2410DISP::InVBlank\r\n")));
	return 0;
}

SCODE	S3C2410DISP::SetPalette(const PALETTEENTRY *source, USHORT firstEntry, USHORT numEntries)
{
	RETAILMSG(0, (TEXT("S3C2410DISP::SetPalette\r\n")));

	if (firstEntry < 0 || firstEntry + numEntries > 256 || source == NULL)
	{
		return	E_INVALIDARG;
	}

	return	S_OK;
}

ULONG	S3C2410DISP::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  S3C2410DISP::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 S3C2410DISP::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 S3C2410DISP::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