xref: /aoo41x/main/vcl/aqua/source/dtrans/PictToBmpFlt.cxx (revision fcb37b40)

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 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
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 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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/* This is a work-around to prevent 'deprecated' warning for 'KillPicture' API
   Hopefully we can get rid of this whole code again when the OOo PICT filter
   are good enough to be used see #i78953 thus this hack would vanish to again.
 */
#include <premac.h>
#include <AvailabilityMacros.h>
#undef DEPRECATED_ATTRIBUTE
#define DEPRECATED_ATTRIBUTE

#include <Carbon/Carbon.h>
#include <postmac.h>

#include "PictToBmpFlt.hxx"

bool PICTtoPNG( com::sun::star::uno::Sequence<sal_Int8>& rPictData,
			com::sun::star::uno::Sequence<sal_Int8>& rPngData)
{
#ifdef MAC_OS_X_VERSION_10_6
	return false;
#else // MAC_OS_X_VERSION_10_6
	ComponentInstance pngExporter = NULL;
	if( OpenADefaultComponent( GraphicsExporterComponentType, kQTFileTypePNG, &pngExporter) != noErr)
		return false;

	Handle hPict = NULL;
	if( PtrToHand( rPictData.getArray(), &hPict, rPictData.getLength()) != noErr)
		hPict = NULL;

	Handle hPng = NULL;
	if( hPict && GraphicsExportSetInputPicture( pngExporter, (PicHandle)hPict) == noErr)
		hPng = NewHandleClear(0);

	size_t nPngSize = 0;
	if( hPng
	&& (GraphicsExportSetOutputHandle( pngExporter, hPng) == noErr)
	&& (GraphicsExportDoExport( pngExporter, NULL) == noErr))
	{
		nPngSize = GetHandleSize( hPng);
		rPngData.realloc( nPngSize);

		HLock( hPng);
		rtl_copyMemory( rPngData.getArray(), ((sal_Int8*)*hPng), nPngSize);
		HUnlock( hPng);
	}

	if( hPict)
		DisposeHandle( hPict);
	if( hPng)
		DisposeHandle( hPng);
	if( pngExporter)
		CloseComponent( pngExporter);

	return (nPngSize > 0);
#endif // MAC_OS_X_VERSION_10_6
}


bool PNGtoPICT( com::sun::star::uno::Sequence<sal_Int8>& rPngData,
			   com::sun::star::uno::Sequence<sal_Int8>& rPictData)
{
#ifdef MAC_OS_X_VERSION_10_6
	return false;
#else // MAC_OS_X_VERSION_10_6
	ComponentInstance pictExporter;
	if( OpenADefaultComponent( GraphicsImporterComponentType, kQTFileTypePNG, &pictExporter) != noErr)
		return false;

	Handle hPng = NULL;
	if( PtrToHand( rPngData.getArray(), &hPng, rPngData.getLength()) != noErr)
		hPng = NULL;

	size_t nPictSize = 0;
	PicHandle hPict = NULL;
	if( hPng
	&& (GraphicsImportSetDataHandle( pictExporter, hPng) == noErr)
	&& (GraphicsImportGetAsPicture( pictExporter, &hPict) == noErr))
	{
		nPictSize = GetHandleSize( (Handle)hPict);
		rPictData.realloc( nPictSize);

		HLock( (Handle)hPict);
		rtl_copyMemory( rPictData.getArray(), ((sal_Int8*)*hPict), nPictSize);
		HUnlock( (Handle)hPict);

#if __MAC_OS_X_VERSION_MAX_ALLOWED <= 1060
		// Release the data associated with the picture
		// Note: This function has been deprecated in OSX 10.4 and removed in OSX 10.7
		KillPicture( hPict);
#endif
	}

	if( hPng)
		DisposeHandle( hPng);
	if( pictExporter)
		CloseComponent( pictExporter);

	return (nPictSize > 512);
#endif // MAC_OS_X_VERSION_10_6
}

bool ImageToPNG( com::sun::star::uno::Sequence<sal_Int8>& rImgData,
			     com::sun::star::uno::Sequence<sal_Int8>& rPngData,
			     NSBitmapImageFileType eInFormat)
{
	// short circuit for PNG->PNG request
	if( eInFormat == NSPNGFileType) {
		rPngData = rImgData;
		return true;
	}

	// special handling for old PICT images that are not supported by NSBitmapImage
	if( eInFormat == PICTImageFileType)
		return PICTtoPNG( rImgData, rPngData);

	// let Cocoa's NSBitmapImageRep do the conversion
	NSData* pData = [NSData dataWithBytesNoCopy: (void*)rImgData.getConstArray() length: rImgData.getLength() freeWhenDone: 0];
	if( !pData)
		return false;

	NSBitmapImageRep* pRep =[NSBitmapImageRep imageRepWithData: pData];
        if( !pRep)
		return false;

	NSData* pOut = [pRep representationUsingType: NSPNGFileType properties: nil];
	if( !pOut)
		return false;

	// get the conversion result
	const size_t nPngSize = [pOut length];
	rPngData.realloc( nPngSize);
	[pOut getBytes: rPngData.getArray() length: nPngSize];
	return (nPngSize > 0);
}

bool PNGToImage( com::sun::star::uno::Sequence<sal_Int8>& rPngData,
			     com::sun::star::uno::Sequence<sal_Int8>& rImgData,
			     NSBitmapImageFileType eOutFormat
			    )
{
	// short circuit for PNG->PNG request
	if( eOutFormat == NSPNGFileType) {
		rImgData = rPngData;
		return true;
	}

	// special handling for old PICT images that are not supported by NSBitmapImage
	if( eOutFormat == PICTImageFileType)
		return PNGtoPICT( rPngData, rImgData);

	// let Cocoa's NSBitmapImageRep do the conversion
	NSData* pData = [NSData dataWithBytesNoCopy: const_cast<sal_Int8*>(rPngData.getConstArray()) length: rPngData.getLength() freeWhenDone: 0];
	if( !pData)
		return false;

        NSBitmapImageRep* pRep = [NSBitmapImageRep imageRepWithData: pData];
        if( !pRep)
		return false;

	NSData* pOut = [pRep representationUsingType: eOutFormat properties: nil];
	if( !pOut)
		return false;

	// get the conversion result
	const size_t nImgSize = [pOut length];
	rImgData.realloc( nImgSize);
	[pOut getBytes: rImgData.getArray() length: nImgSize];
	return (nImgSize > 0);
}