From: santhosh.au <santhosh.au@samsung.com>
Date: Fri, 16 Aug 2013 13:34:23 +0000 (+0530)
Subject: Support for NV12
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ef4ce40878a33c3ad055c943231e2412ce3b47bf;p=apps%2Fnative%2Fsample%2FQrCodeRecognizer.git

Support for NV12

Change-Id: I23a748e3e54b683d62e8ee091575842974d0e1b0
Signed-off-by: santhosh.au <santhosh.au@samsung.com>
---

diff --git a/project/inc/CameraTools.h b/project/inc/CameraTools.h
index 5dcc6b0..7699bbe 100644
--- a/project/inc/CameraTools.h
+++ b/project/inc/CameraTools.h
@@ -19,6 +19,7 @@
 #define CAMERA_TOOLS_H_
 
 #include <FMedia.h>
+#include <FGraphics.h>
 
 class CameraTools
 {
@@ -43,6 +44,7 @@ public:
 
     static int GetWidth(void);
     static int GetHeight(void);
+    static Tizen::Graphics::PixelFormat GetFormat(void);
 
 private:
 
@@ -51,6 +53,7 @@ private:
     static Tizen::Media::ICameraEventListener* __pListener;
     static int __width;
     static int __height;
+    static Tizen::Graphics::PixelFormat __format;
 };
 
 #endif //CAMERA_TOOLS_H_
diff --git a/project/inc/Tracker.h b/project/inc/Tracker.h
index 0f2c7a3..314cd6b 100644
--- a/project/inc/Tracker.h
+++ b/project/inc/Tracker.h
@@ -49,6 +49,8 @@ public:
     // Called when camera  error occurred
     void OnCameraErrorOccurred(Tizen::Media::CameraErrorReason r);
 
+    void ConvertNV12ToYCbCr(byte *src, byte *dst, int width, int height);
+
     static const int DESIRED_CAMERA_WIDTH  = 640;
     static const int DESIRED_CAMERA_HEIGHT = 480;
 
diff --git a/project/src/CameraTools.cpp b/project/src/CameraTools.cpp
index fe2f240..f3d0ecc 100644
--- a/project/src/CameraTools.cpp
+++ b/project/src/CameraTools.cpp
@@ -20,12 +20,15 @@
 
 using namespace Tizen::Base;
 using namespace Tizen::Media;
+using namespace Tizen::Graphics;
+
 
 Camera*  CameraTools::__pCamera(null);
 Tizen::Graphics::Dimension CameraTools::__choosenResolution;
 int CameraTools::__width;
 int CameraTools::__height;
 Tizen::Media::ICameraEventListener*  CameraTools::__pListener(null);
+Tizen::Graphics::PixelFormat CameraTools::__format;
 
 const char* pTag = "CameraTools";
 
@@ -65,7 +68,27 @@ CameraTools::InitCamera(ICameraEventListener &listener,
         return false;
     }
 
-    if (IsFailed(__pCamera->SetPreviewFormat(Tizen::Graphics::PIXEL_FORMAT_YCbCr420_PLANAR)))
+	__format = PIXEL_FORMAT_MIN;
+
+   Tizen::Base::Collection::IListT<Tizen::Graphics::PixelFormat>* PreviewList = __pCamera->GetSupportedPreviewFormatListN();
+
+	for (int i = 0; i < PreviewList->GetCount(); i++)
+	{
+		Tizen::Graphics::PixelFormat format;
+
+		PreviewList->GetAt(i,format);
+		if(format == PIXEL_FORMAT_YCbCr420_PLANAR)
+		{
+			__format = PIXEL_FORMAT_YCbCr420_PLANAR;
+			break;
+		}else if (format == PIXEL_FORMAT_NV12)
+		{
+			__format = PIXEL_FORMAT_NV12;
+		}
+	}
+    
+	
+    if (IsFailed(__pCamera->SetPreviewFormat(__format)))
     {
     	AppSecureLogExceptionTag(pTag, "SetPreviewFormat failed with %s", GetErrorMessage(GetLastResult()));
         return false;
@@ -236,3 +259,9 @@ CameraTools::GetHeight(void)
 {
     return __height;
 }
+
+Tizen::Graphics::PixelFormat
+CameraTools::GetFormat(void)
+{
+    return __format;
+}
diff --git a/project/src/Tracker.cpp b/project/src/Tracker.cpp
index b16f293..0c14763 100644
--- a/project/src/Tracker.cpp
+++ b/project/src/Tracker.cpp
@@ -22,6 +22,9 @@
 #include <FApp.h>
 #include <FIo.h>
 
+using namespace Tizen::Graphics;
+using namespace Tizen::Base;
+
 Tracker::Tracker()
     : __pQrRecognizer(0)
     , __pRenderer(0)
@@ -84,11 +87,32 @@ Tracker::OnCameraPreviewed(Tizen::Base::ByteBuffer& previewedData, result r)
     if (__doRender && !__terminating)
     {
         bool was_object = false;
-        __pQrRecognizer->ProcessImage(previewedData);
+
+        Tizen::Base::ByteBuffer* pBuffer = new (std::nothrow) ByteBuffer();
+		TryReturn(pBuffer != null, , "Failed to create ByteBuffer");
+		/* check the preview format*/
+		if (CameraTools::GetFormat() == PIXEL_FORMAT_NV12)
+		{
+			byte *pSrcArray = null;
+			byte *pDstArray = null;
+			pBuffer->Construct((CameraTools::GetHeight()*CameraTools::GetWidth())*1.5);
+
+			pSrcArray = previewedData.GetPointer();
+			pDstArray = pBuffer->GetPointer();
+
+			ConvertNV12ToYCbCr(pSrcArray,pDstArray,CameraTools::GetHeight(),CameraTools::GetWidth());
+		}/*check the preview format*/
+		else
+		{
+			pBuffer->Construct(previewedData);
+		}
+
+        __pQrRecognizer->ProcessImage(*pBuffer);
+
 
         if (GLtools::startDrawing())
         {
-            __pRenderer->SetTextureData(CameraTools::GetWidth(), CameraTools::GetHeight(), (unsigned char*) previewedData.GetPointer());
+            __pRenderer->SetTextureData(CameraTools::GetWidth(), CameraTools::GetHeight(), (unsigned char*) pBuffer->GetPointer());
             static float zeroBuffer[4][4] = {{ 0, 0, 0, 0}};
             static Tizen::Graphics::FloatMatrix4 zeroMatrix(zeroBuffer);
             __pRenderer->SetModelViewMatrix(0, &zeroMatrix);
@@ -118,6 +142,9 @@ Tracker::OnCameraPreviewed(Tizen::Base::ByteBuffer& previewedData, result r)
         }
 
         __pForm->Draw();
+
+        if(pBuffer)
+        	delete pBuffer;
     }
     else if (__terminating)
     {
@@ -200,3 +227,25 @@ Tracker::Focus(bool objectVisible)
         frames = 0;
     }
 }
+
+void
+Tracker::ConvertNV12ToYCbCr(byte *src, byte *dst, int width, int height)
+{
+	byte *pSrcStart = src;
+	byte *pDstStart = dst;
+	byte *pDstUStart = dst + width*height;
+	byte *pDstVStart = pDstUStart + width*height/4;
+
+	//Copy Y Components
+	memcpy(pDstStart, pSrcStart, (width*height));
+	pSrcStart += width*height;
+
+	//Copy UV Components
+	for (int i = 0; i < (width*height)/4; i++)
+	{
+		*pDstUStart++ = *pSrcStart++;
+		*pDstVStart++ = *pSrcStart++;
+	}
+
+	return;
+}