diff -r 000000000000 -r 96e5fb8b040d kerneltest/e32test/multimedia/t_camera_display.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kerneltest/e32test/multimedia/t_camera_display.cpp	Thu Dec 17 09:24:54 2009 +0200
@@ -0,0 +1,388 @@
+// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// e32test\multimedia\t_camera_display.cpp
+// 
+//
+
+#include <e32test.h>
+#include <e32svr.h>
+#include <u32hal.h>
+#include <videodriver.h>
+#include "t_camera_display.h"
+
+_LIT(KFrameSizeConfTitle,"Current frame size  :");
+_LIT(KFrameSize, " %d x %d");
+
+#define CLIP(a) if (a < 0) a = 0; else if (a > 255) a = 255;
+
+/**
+Constructor
+*/
+TCamDisplayHandler::TCamDisplayHandler()
+	{}
+
+/**
+Initialise the display handler.
+@return KErrNone if write was successful, otherwise one of the other system wide error codes.
+*/
+TInt TCamDisplayHandler::Init()
+	{
+	TScreenInfoV01 screenInfo;
+	TPckg<TScreenInfoV01> screenInfoBuf(screenInfo);
+	UserSvr::ScreenInfo(screenInfoBuf);
+	iVideoAddress = (TUint8*) screenInfo.iScreenAddress;
+	iScreenWidth = screenInfo.iScreenSize.iWidth;
+	iScreenHeight = screenInfo.iScreenSize.iHeight;
+
+	TPckgBuf<TVideoInfoV01> videoInfoBuf;
+	UserSvr::HalFunction(EHalGroupDisplay, EDisplayHalCurrentModeInfo, &videoInfoBuf, NULL);
+	iBitsPerPixel = videoInfoBuf().iBitsPerPixel;
+
+	return(KErrNone);
+	}
+
+TInt TCamDisplayHandler::Min(TInt aA, TInt aB)
+	{
+	return (aA < aB) ? aA : aB;
+	}
+
+TInt TCamDisplayHandler::SetConfig(const SDevCamFrameSize& aSize,const SDevCamPixelFormat& aPixelFormat)
+	{
+	if (aPixelFormat.iPixelFormat==EUidPixelFormatYUV_422Interleaved || aPixelFormat.iPixelFormat==EUidPixelFormatRGB_565)
+		iPixelFormat=aPixelFormat;
+	else
+		return(KErrArgument);
+
+	iWidth = aSize.iWidth;
+	iHeight = aSize.iHeight;
+
+	return(KErrNone);
+	}
+
+/**
+Post process a received image.
+@return KErrNone if write was successful, otherwise one of the other system wide error codes.
+*/
+TInt TCamDisplayHandler::Process(TUint8* aImageBaseAddress)
+	{
+	switch (iPixelFormat.iPixelFormat)
+		{
+		case EUidPixelFormatYUV_422Interleaved:
+			return(ProcessYUV422(aImageBaseAddress));
+		case EUidPixelFormatRGB_565:
+			return(ProcessRGB565(aImageBaseAddress));
+		default:
+			return(KErrNotSupported);
+		}
+	}
+
+/**
+Post process a received RGB565 image.
+@return KErrNone if write was successful, otherwise one of the other system wide error codes.
+*/
+TInt TCamDisplayHandler::ProcessRGB565(TUint8* aImageBaseAddress)
+	{
+	TUint16* source = (TUint16*) aImageBaseAddress;
+	TUint16 pixel;
+	TInt sourceModulo, destModulo, width, height;
+	TInt r = KErrNone;
+
+	// Determine whether the screen or the picture to display is the widest, and calculate modulos
+	// and clipping sizes appropriately
+	if (iWidth < iScreenWidth)
+		{
+		width = iWidth;
+		sourceModulo = 0;
+		destModulo = (iScreenWidth - iWidth);
+		}
+	else
+		{
+		width = iScreenWidth;
+		sourceModulo = (iWidth - iScreenWidth);
+		destModulo = 0;
+		}
+
+	// Determine whether the screen or the picture to display is the highest
+	height = (iHeight < iScreenHeight) ? iHeight : iScreenHeight;
+
+	if (iBitsPerPixel == 16)
+		{
+		TUint16* dest = (TUint16*) iVideoAddress;
+
+		// Loop around and copy the data directly onto the screen
+		for (TInt line = 0; line < height; ++line)
+			{
+			for (TInt x = 0; x < width; ++x)
+				{
+				*dest++ = *source++;
+				}
+
+			source += sourceModulo;
+			dest += destModulo;
+			}
+		}
+	else if (iBitsPerPixel == 32)
+		{
+		TUint8* dest = iVideoAddress;
+
+		destModulo *= 4;
+
+		// Loop around and convert whatever part of the picture will fit onto the screen into BGRA,
+		// writing it directly onto the screen
+		for (TInt line = 0; line < height; ++line)
+			{
+			for (TInt x = 0; x < width; ++x)
+				{
+				pixel = *source++;
+				*dest++= (TUint8) ((pixel & 0x001f) << 3);
+				*dest++= (TUint8) ((pixel & 0x07e0) >> 3);
+				*dest++= (TUint8) ((pixel & 0xf800) >> 8);
+				*dest++ = 0xff;
+				}
+
+			source += sourceModulo;
+			dest += destModulo;
+			}
+		}
+	else
+		{
+		r = KErrNotSupported;
+		}
+
+	return r;
+	}
+
+/**
+Post process a received YUV422 image.
+@return KErrNone if write was successful, otherwise one of the other system wide error codes.
+*/
+TInt TCamDisplayHandler::ProcessYUV422(TUint8* aImageBaseAddress)
+	{
+	TUint16* dest16 = (TUint16*) iVideoAddress;
+	TUint32* dest32 = (TUint32*) iVideoAddress;
+	TUint8* source = aImageBaseAddress;
+	TInt y, u, v, r, g, b, sourceModulo, destModulo, width, height;
+	TInt retVal = KErrNone;
+
+	// Determine whether the screen or the picture to display is the widest, and calculate modulos
+	// and clipping sizes appropriately
+	if (iWidth < iScreenWidth)
+		{
+		width = (iWidth / 2);
+		sourceModulo = 0;
+		destModulo = (iScreenWidth - iWidth);
+		}
+	else
+		{
+		width = (iScreenWidth / 2);
+		sourceModulo = ((iWidth - iScreenWidth) * 2);
+		destModulo = 0;
+		}
+
+	// Determine whether the screen or the picture to display is the highest
+	height = (iHeight < iScreenHeight) ? iHeight : iScreenHeight;
+
+	// Only 16 and 32 bits per pixel are supported.  It is also assumed that 16 bit will be RGB565 and
+	// 32 bit will be BGRA.  You will need to add support for new formats if required
+	if ((iBitsPerPixel == 16) || (iBitsPerPixel == 32))
+		{
+		// Loop around and convert whatever part of the picture will fit onto the screen into RGB565 or BGRA,
+		// writing it directly onto the screen
+		for (TInt line = 0; line < height; ++line)
+			{
+			for (TInt x = 0; x < width; ++x)
+				{
+				u = (source[0] - 128);
+				v = (source[2] - 128);
+				y = (source[3] - 16);
+
+				r = ((298 * y + 409 * u) / 256);
+				g = ((298 * y - 100 * v - 208 * u) / 256);
+				b = ((298 * y + 516 * v) / 256);
+
+				CLIP(r);
+				CLIP(g);
+				CLIP(b);
+
+				if (iBitsPerPixel == 16)
+					{
+					*dest16++ = (TUint16) (((b & 0xf8) << 8) | ((g & 0xfc) << 3) | ((r & 0xf8) >> 3));
+					}
+				else
+					{
+					*dest32++ = (0xff000000 | (r << 16) | (g << 8) | b);
+					}
+
+				y = (source[1] - 16);
+
+				r = ((298 * y + 409 * u) / 256);
+				g = ((298 * y - 100 * v - 208 * u) / 256);
+				b = ((298 * y + 516 * v) / 256);
+
+				CLIP(r);
+				CLIP(g);
+				CLIP(b);
+
+				if (iBitsPerPixel == 16)
+					{
+					*dest16++ = (TUint16) (((b & 0xf8) << 8) | ((g & 0xfc) << 3) | ((r & 0xf8) >> 3));
+					}
+				else
+					{
+					*dest32++ = (0xff000000 | (r << 16) | (g << 8) | b);
+					}
+
+				source += 4;
+				}
+
+			source += sourceModulo;
+			dest16 += destModulo;
+			dest32 += destModulo;
+			}
+		}
+	else
+		{
+		retVal = KErrNotSupported;
+		}
+
+	return retVal;
+	}
+
+/**
+Appends a string representing a pixel format UID onto a descriptor.
+@param aBuffer		Reference to the descriptor into which to append the string.  It is up to the
+					caller to ensure that this is large enough.
+@param aPixelFormat	UID of the pixel format to be converted into a string.
+*/
+void AppendPixelFormat(TDes& aBuffer, TUidPixelFormat aPixelFormat)
+	{
+	if (aPixelFormat == EUidPixelFormatRGB_565)
+		aBuffer.Append(KPixelFormatRGB_565);
+	else if (aPixelFormat == EUidPixelFormatYUV_422Interleaved)
+		aBuffer.Append(KPixelFormatYUV_422Interleaved);
+	else if (aPixelFormat == EUidPixelFormatSpeedTaggedJPEG)
+		aBuffer.Append(KPixelFormatSpeedTaggedJPEG);
+	else if (aPixelFormat == EUidPixelFormatJPEG)
+		aBuffer.Append(KPixelFormatJPEG);
+	else
+		aBuffer.Append(KPixelFormatUnknown);
+	}
+
+void PrintCamModes(TCameraCapsV02* aCaps,RTest& aTest)
+	{
+	TBuf<80> buf;
+
+	// Display the supported capture modes
+	buf.Zero();
+	buf.Append(KCaptureModeCapsTitle);
+	if (aCaps->iNumImagePixelFormats)
+		buf.Append(KCaptureModeImage);
+	if (aCaps->iNumVideoPixelFormats)
+		buf.Append(KCaptureModeVideo);
+	if (aCaps->iNumViewFinderPixelFormats)
+		buf.Append(KCaptureModeViewFinder);
+	buf.Append(_L("\r\n"));
+	aTest.Printf(buf);
+
+	// Display the supported video pixel formats
+	TUint i;
+	SDevCamPixelFormat* pixelFormat;
+	if (aCaps->iNumImagePixelFormats)
+		{
+		buf.Zero();
+		buf.Append(KPixelFormatCapsTitle);
+		buf.Append(KCaptureModeImage);
+		pixelFormat = (SDevCamPixelFormat*) (aCaps + 1);
+		for (i = 0; i < aCaps->iNumImagePixelFormats; i++)
+			{
+			AppendPixelFormat(buf, pixelFormat->iPixelFormat);
+			pixelFormat++;
+			}
+		buf.Append(_L("\r\n"));
+		aTest.Printf(buf);
+		}
+
+	if (aCaps->iNumVideoPixelFormats)
+		{
+		buf.Zero();
+		buf.Append(KPixelFormatCapsTitle);
+		buf.Append(KCaptureModeVideo);
+		pixelFormat = (SDevCamPixelFormat*) (aCaps + 1);
+		for (i = aCaps->iNumImagePixelFormats; i < (aCaps->iNumImagePixelFormats + aCaps->iNumVideoPixelFormats); i++)
+			{
+			AppendPixelFormat(buf, pixelFormat->iPixelFormat);
+			pixelFormat++;
+			}
+		buf.Append(_L("\r\n"));
+		aTest.Printf(buf);
+		}
+
+	if (aCaps->iNumViewFinderPixelFormats)
+		{
+		buf.Zero();
+		buf.Append(KPixelFormatCapsTitle);
+		buf.Append(KCaptureModeViewFinder);
+		pixelFormat = (SDevCamPixelFormat*) (aCaps + 1);
+		i = aCaps->iNumImagePixelFormats + aCaps->iNumImagePixelFormats + 1;
+		for (i = aCaps->iNumImagePixelFormats + aCaps->iNumVideoPixelFormats; i < (aCaps->iNumImagePixelFormats + aCaps->iNumVideoPixelFormats + aCaps->iNumViewFinderPixelFormats); i++)
+			{
+			AppendPixelFormat(buf, pixelFormat->iPixelFormat);
+			pixelFormat++;
+			}
+		buf.Append(_L("\r\n"));
+		aTest.Printf(buf);
+		}
+	}
+
+void PrintCamConf(TCameraConfigV02& aConf,RTest& aTest)
+	{
+	TBuf<80> buf;
+
+	// Display the current frame size
+	buf.Zero();
+	buf.Append(KFrameSizeConfTitle);
+	buf.AppendFormat(KFrameSize, aConf.iFrameSize.iWidth, aConf.iFrameSize.iHeight);
+	buf.Append(_L("\r\n"));
+	aTest.Printf(buf);
+
+	// Display the current pixel format
+	buf.Zero();
+	buf.Append(KPixelFormatConfTitle);
+	AppendPixelFormat(buf, aConf.iPixelFormat.iPixelFormat);
+	buf.Append(_L("\r\n"));
+	aTest.Printf(buf);
+
+	// Display the current frame rate
+	buf.Zero();
+	buf.Format(_L("Current frame rate  : %d fps\r\n"),aConf.iFrameRate);
+	aTest.Printf(buf);
+	}
+
+void PrintBufferConf(TMmSharedChunkBufConfig& aBufConf,RTest& aTest)
+	{
+	TBuf<80> buf(0);
+
+	SBufSpecList* tempSpec = aBufConf.iSpec;
+
+	// Display the buffer configuration
+	buf.Format(_L("Buffer Config       : NumBufs:%d Size:%xH\r\n"),aBufConf.iNumBuffers,aBufConf.iBufferSizeInBytes);
+	aTest.Printf(buf);
+	if (aBufConf.iFlags & KScFlagBufOffsetListInUse)
+		{
+		buf.Format(_L(" Offsets[%08xH,%08xH,%08xH,%08xH]\r\n"),tempSpec[0].iBufferOffset,tempSpec[1].iBufferOffset,tempSpec[2].iBufferOffset,tempSpec[3].iBufferOffset);
+		aTest.Printf(buf);
+		buf.Format(_L(" Offsets[%08xH,%08xH,%08xH,%08xH]\r\n"),tempSpec[4].iBufferOffset,tempSpec[5].iBufferOffset,tempSpec[6].iBufferOffset,tempSpec[7].iBufferOffset);
+		aTest.Printf(buf);
+		}
+	}