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src/Source/FreeImage/PluginRAW.cpp  view on Meta::CPAN

// ==========================================================
// RAW camera image loader
//
// Design and implementation by 
// - Hervé Drolon (drolon@infonie.fr)
//
// This file is part of FreeImage 3
//
// COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY
// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES
// THAT THE COVERED CODE IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE
// OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED
// CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT
// THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY
// SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL
// PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER
// THIS DISCLAIMER.
//
// Use at your own risk!
// ==========================================================

#include "../LibRawLite/libraw/libraw.h"

#include "FreeImage.h"
#include "Utilities.h"
#include "../Metadata/FreeImageTag.h"

// ==========================================================
// Plugin Interface
// ==========================================================

static int s_format_id;

// ==========================================================
// Internal functions
// ==========================================================

// ----------------------------------------------------------
//   FreeImage datastream wrapper
// ----------------------------------------------------------

class LibRaw_freeimage_datastream : public LibRaw_abstract_datastream {
private: 
	FreeImageIO *_io;
	fi_handle _handle;
	long _eof;
	INT64 _fsize;

public:
	LibRaw_freeimage_datastream(FreeImageIO *io, fi_handle handle) : _io(io), _handle(handle) {
		long start_pos = io->tell_proc(handle);
		io->seek_proc(handle, 0, SEEK_END);
		_eof = io->tell_proc(handle);
		_fsize = _eof - start_pos;
		io->seek_proc(handle, start_pos, SEEK_SET);
	}

	~LibRaw_freeimage_datastream() {
	}

    int valid() { 
		return (_io && _handle);
	}

    int read(void *buffer, size_t size, size_t count) { 
		if(substream) return substream->read(buffer, size, count);
		return _io->read_proc(buffer, (unsigned)size, (unsigned)count, _handle);
	}

    int seek(INT64 offset, int origin) { 
        if(substream) return substream->seek(offset, origin);
		return _io->seek_proc(_handle, (long)offset, origin);
	}

    INT64 tell() { 
		if(substream) return substream->tell();
        return _io->tell_proc(_handle);
    }
	
	INT64 size() {
		return _fsize;
	}

    int get_char() { 
		int c = 0;
		if(substream) return substream->get_char();
		if(!_io->read_proc(&c, 1, 1, _handle)) return -1;
		return c;
   }
	
	char* gets(char *buffer, int length) { 
		if (substream) return substream->gets(buffer, length);
		memset(buffer, 0, length);
		for(int i = 0; i < length; i++) {
			if(!_io->read_proc(&buffer[i], 1, 1, _handle))
				return NULL;
			if(buffer[i] == 0x0A)
				break;
		}
		return buffer;
	}

	int scanf_one(const char *fmt, void* val) {
		std::string buffer;
		char element = 0;
		bool bDone = false;
		if(substream) return substream->scanf_one(fmt,val);				
		do {
			if(_io->read_proc(&element, 1, 1, _handle) == 1) {

src/Source/FreeImage/PluginRAW.cpp  view on Meta::CPAN

			if(RawProcessor->imgdata.idata.filters) {
				// description of colors numbered from 0 to 3 (RGBG,RGBE,GMCY, or GBTG)
				char *cdesc = RawProcessor->imgdata.idata.cdesc;
				if(!cdesc[3]) {
					cdesc[3] = 'G';
				}
				char *pattern = &value[0];
				for(int i = 0; i < 16; i++) {
					pattern[i] = cdesc[ RawProcessor->fcol(i >> 1, i & 1) ];
				}
				pattern[16] = 0;

				FreeImage_SetMetadataKeyValue(FIMD_COMMENTS, dib, "Raw.BayerPattern", value);
			}
		}
	
		return dib;

	} catch(const char *text) {
		FreeImage_Unload(dib);
		FreeImage_OutputMessageProc(s_format_id, text);
		return NULL;
	}
}

// ==========================================================
// Plugin Implementation
// ==========================================================

static const char * DLL_CALLCONV
Format() {
	return "RAW";
}

static const char * DLL_CALLCONV
Description() {
	return "RAW camera image";
}

static const char * DLL_CALLCONV
Extension() {
	/**
	Below are known RAW file extensions that you can check using FreeImage_GetFIFFromFormat. 
	If a file extension is not listed, that doesn't mean that you cannot load it. 
	Using FreeImage_GetFileType is the best way to know if a RAW file format is supported. 
	*/
	static const char *raw_extensions = 
		"3fr,"   // Hasselblad Digital Camera Raw Image Format.
		"arw,"   // Sony Digital Camera Raw Image Format for Alpha devices.
		"bay,"   // Casio Digital Camera Raw File Format.
		"bmq,"   // NuCore Raw Image File.
		"cap,"   // Phase One Digital Camera Raw Image Format.
		"cine,"  // Phantom Software Raw Image File.
		"cr2,"   // Canon Digital Camera RAW Image Format version 2.0. These images are based on the TIFF image standard.
		"crw,"   // Canon Digital Camera RAW Image Format version 1.0. 
		"cs1,"   // Sinar Capture Shop Raw Image File.
		"dc2,"   // Kodak DC25 Digital Camera File.
		"dcr,"   // Kodak Digital Camera Raw Image Format for these models: Kodak DSC Pro SLR/c, Kodak DSC Pro SLR/n, Kodak DSC Pro 14N, Kodak DSC PRO 14nx.
		"drf,"   // Kodak Digital Camera Raw Image Format.
		"dsc,"   // Kodak Digital Camera Raw Image Format.
		"dng,"   // Adobe Digital Negative: DNG is publicly available archival format for the raw files generated by digital cameras. By addressing the lack of an open standard for the raw files created by individual camera models, DNG helps ensure that ph...
		"erf,"   // Epson Digital Camera Raw Image Format.
		"fff,"   // Imacon Digital Camera Raw Image Format.
		"ia,"    // Sinar Raw Image File.
		"iiq,"   // Phase One Digital Camera Raw Image Format.
		"k25,"   // Kodak DC25 Digital Camera Raw Image Format.
		"kc2,"   // Kodak DCS200 Digital Camera Raw Image Format.
		"kdc,"   // Kodak Digital Camera Raw Image Format.
		"mdc,"   // Minolta RD175 Digital Camera Raw Image Format.
		"mef,"   // Mamiya Digital Camera Raw Image Format.
		"mos,"   // Leaf Raw Image File.
		"mrw,"   // Minolta Dimage Digital Camera Raw Image Format.
		"nef,"   // Nikon Digital Camera Raw Image Format.
		"nrw,"   // Nikon Digital Camera Raw Image Format.
		"orf,"   // Olympus Digital Camera Raw Image Format.
		"pef,"   // Pentax Digital Camera Raw Image Format.
		"ptx,"   // Pentax Digital Camera Raw Image Format.
		"pxn,"   // Logitech Digital Camera Raw Image Format.
		"qtk,"   // Apple Quicktake 100/150 Digital Camera Raw Image Format.
		"raf,"   // Fuji Digital Camera Raw Image Format.
		"raw,"   // Panasonic Digital Camera Image Format.
		"rdc,"   // Digital Foto Maker Raw Image File.
		"rw2,"   // Panasonic LX3 Digital Camera Raw Image Format.
		"rwl,"	 // Leica Camera Raw Image Format.
		"rwz,"   // Rawzor Digital Camera Raw Image Format.
		"sr2,"   // Sony Digital Camera Raw Image Format.
		"srf,"   // Sony Digital Camera Raw Image Format for DSC-F828 8 megapixel digital camera or Sony DSC-R1.
		"srw,"   // Samsung Raw Image Format.
		"sti,"   // Sinar Capture Shop Raw Image File.
		"x3f";   // Sigma Digital Camera Raw Image Format for devices based on Foveon X3 direct image sensor.
	return raw_extensions;
}

static const char * DLL_CALLCONV
RegExpr() {
	return NULL;
}

static const char * DLL_CALLCONV
MimeType() {
	return "image/x-dcraw";
}

static BOOL 
HasMagicHeader(FreeImageIO *io, fi_handle handle) {
	const unsigned signature_size = 32;
	BYTE signature[signature_size] = { 0 };
	/*
	note: classic TIFF signature is
	{ 0x49, 0x49, 0x2A, 0x00 } Classic TIFF, little-endian
	{ 0x4D, 0x4D, 0x00, 0x2A } Classic TIFF, big-endian
	*/
	// Canon (CR2), little-endian byte order
	const BYTE CR2_II[] = { 0x49, 0x49, 0x2A, 0x00, 0x10, 0x00, 0x00, 0x00, 0x43, 0x52, 0x02, 0x00 };
	// Canon (CRW), little-endian byte order
	const BYTE CRW_II[] = { 0x49, 0x49, 0x1A, 0x00, 0x00, 0x00, 0x48, 0x45, 0x41, 0x50, 0x43, 0x43, 0x44, 0x52, 0x02, 0x00 };
	// Minolta (MRW)
	const BYTE MRW[] = { 0x00, 0x4D, 0x52, 0x4D, 0x00 };
	// Olympus (ORF), little-endian byte order
	const BYTE ORF_IIRS[] = { 0x49, 0x49, 0x52, 0x53, 0x08, 0x00, 0x00, 0x00 }; 
	const BYTE ORF_IIRO[] = { 0x49, 0x49, 0x52, 0x4F, 0x08, 0x00, 0x00, 0x00 };