--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/videoeditorengine/h263decoder/src/vdeimb.cpp	Fri Jan 29 14:08:33 2010 +0200
@@ -0,0 +1,185 @@
+/*
+* Copyright (c) 2010 Ixonos Plc.
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the "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:
+* Ixonos Plc
+*
+* Description:  
+* Individual image buffer handling.
+*
+*/
+
+
+/*
+ * Includes
+ */
+
+
+#include "h263dConfig.h"
+#include "vdeimb.h"
+
+#include "vde.h"
+
+
+/*
+ * Global functions
+ */
+
+/* {{-output"vdeImbAlloc.txt"}} */
+/*
+ * vdeImbAlloc
+ *
+ * Parameters:
+ *    width                      width of the luminance image in pixels
+ *    height                     height of the luminance image in pixels
+ *
+ * Function:
+ *    This function allocates and initializes a new image buffer of
+ *    requested size.
+ *
+ * Returns:
+ *    a pointer to the created image buffer,
+ *    or NULL if the function failed
+ *
+ *    
+ */
+
+vdeImb_t *vdeImbAlloc(int width, int height, int fYuvNeeded)
+/* {{-output"vdeImbAlloc.txt"}} */
+{
+   vdeImb_t *imb;
+
+   imb = (vdeImb_t *) vdeMalloc(sizeof(vdeImb_t));
+   if (imb == NULL)
+      return NULL;
+   memset(imb, 0, sizeof(vdeImb_t));
+
+
+   imb->drawItem = renDriAlloc(width, height, fYuvNeeded);
+   if (imb->drawItem == NULL)
+      goto errRenDriAlloc;
+   {
+      int numMBsInPicture;
+      
+      numMBsInPicture = width * height / 256;
+
+      imb->yQuantParams = (int *) vdeMalloc(numMBsInPicture * sizeof(int));
+      if (imb->yQuantParams == NULL)
+         goto errYQuantParams;
+
+      imb->uvQuantParams = (int *) vdeMalloc(numMBsInPicture * sizeof(int));
+      if (imb->uvQuantParams == NULL)
+         goto errUVQuantParams;
+
+   }
+
+   return imb;
+
+   /* Error situations: release everything in reverse order */
+
+errUVQuantParams:
+
+      vdeDealloc(imb->yQuantParams);
+errYQuantParams:
+
+      renDriFree(imb->drawItem);
+
+errRenDriAlloc:
+
+   vdeDealloc(imb);
+
+   return NULL;
+}
+
+
+/* {{-output"vdeImbCopyParameters.txt"}} */
+/*
+ * vdeImbCopyParameters
+ *
+ * Parameters:
+ *    dstImb                     destination image buffer
+ *    srcImb                     source image buffer
+ *
+ * Function:
+ *    This function copies the srcImb structure to the dstImb structure.
+ *    All other parameters are copied but the actual picture contents.
+ *    The function handles nested structures correctly.
+ *
+ * Returns:
+ *    (See vde.h for descriptions of return values.)
+ *    VDE_OK
+ *    VDE_ERROR
+ *
+ *    
+ */
+
+int vdeImbCopyParameters(vdeImb_t *dstImb, const vdeImb_t *srcImb)
+/* {{-output"vdeImbCopyParameters.txt"}} */
+{
+   /* drawItem */
+   renDriCopyParameters(dstImb->drawItem, srcImb->drawItem);
+
+   dstImb->fReferenced = srcImb->fReferenced;
+   dstImb->tr = srcImb->tr;
+   dstImb->trRef = srcImb->trRef;
+
+   {
+      int numOfMBs = renDriNumOfMBs(srcImb->drawItem);
+
+      /* yQuantParams */
+      memcpy(
+         dstImb->yQuantParams, 
+         srcImb->yQuantParams, 
+         numOfMBs * sizeof(int));
+      
+      /* uvQuantParams */
+      memcpy(
+         dstImb->uvQuantParams, 
+         srcImb->uvQuantParams, 
+         numOfMBs * sizeof(int));
+
+   }
+
+   return VDE_OK;
+}
+
+
+/* {{-output"vdeImbDealloc.txt"}} */
+/*
+ * vdeImbDealloc
+ *
+ * Parameters:
+ *    imb                        a pointer to image buffer to destroy
+ *
+ * Function:
+ *    This function deallocates the given image buffer.
+ *
+ * Returns:
+ *    Nothing
+ *
+ *    
+ */
+
+void vdeImbDealloc(vdeImb_t *imb)
+/* {{-output"vdeImbDealloc.txt"}} */
+{
+   if (!imb)
+      return;
+
+   if (imb->drawItem)
+      renDriFree(imb->drawItem);
+
+    vdeDealloc(imb->yQuantParams);
+    vdeDealloc(imb->uvQuantParams);
+
+   vdeDealloc(imb);
+}
+// End of File