CUE.cpp@ 87093

Last change on this file since 87093 was 87048, checked in by vboxsync, 4 years ago
CUE, DevATA: Added support for MODE2/2352 tracks in CUE sheets and IDE/ATAPI emulation (see bugref:6975).
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 65.0 KB

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1	/* $Id: CUE.cpp 87048 2020-12-07 14:44:34Z vboxsync $ */
2	/** @file
3	* CUE - CUE/BIN Disk image, Core Code.
4	*/
5
6	/*
7	* Copyright (C) 2017-2020 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	#define LOG_GROUP LOG_GROUP_VD_CUE
23	#include <VBox/vd-plugin.h>
24	#include <VBox/err.h>
25
26	#include <VBox/log.h>
27	#include <VBox/scsiinline.h>
28	#include <iprt/assert.h>
29	#include <iprt/asm.h>
30	#include <iprt/alloc.h>
31	#include <iprt/cdefs.h>
32	#include <iprt/ctype.h>
33	#include <iprt/path.h>
34	#include <iprt/string.h>
35
36	#include "VDBackends.h"
37	#include "VDBackendsInline.h"
38
39
40	/*********************************************************************************************************************************
41	* Constants And Macros, Structures and Typedefs *
42	*********************************************************************************************************************************/
43
44	/**
45	* CUE descriptor file token type.
46	*/
47	typedef enum CUETOKENTYPE
48	{
49	/** Invalid token type. */
50	CUETOKENTYPE_INVALID = 0,
51	/** Reserved keyword. */
52	CUETOKENTYPE_KEYWORD,
53	/** String token. */
54	CUETOKENTYPE_STRING,
55	/** Unsigned integer. */
56	CUETOKENTYPE_INTEGER_UNSIGNED,
57	/** MSF (mm:ss:ff) location token. */
58	CUETOKENTYPE_MSF,
59	/** Error token (unexpected character found). */
60	CUETOKENTYPE_ERROR,
61	/** End of stream token. */
62	CUETOKENTYPE_EOS
63	} CUETOKENTYPE;
64
65	/**
66	* CUE reservered keyword type.
67	*/
68	typedef enum CUEKEYWORD
69	{
70	/** Invalid keyword. */
71	CUEKEYWORD_INVALID = 0,
72	/** FILE. */
73	CUEKEYWORD_FILE,
74	/** BINARY */
75	CUEKEYWORD_BINARY,
76	/** MOTOROLA */
77	CUEKEYWORD_MOTOROLA,
78	/** WAVE */
79	CUEKEYWORD_WAVE,
80	/** MP3 */
81	CUEKEYWORD_MP3,
82	/** AIFF */
83	CUEKEYWORD_AIFF,
84	/** CATALOG */
85	CUEKEYWORD_CATALOG,
86	CUEKEYWORD_CDTEXTFILE,
87	CUEKEYWORD_FLAGS,
88	CUEKEYWORD_INDEX,
89	CUEKEYWORD_ISRC,
90	CUEKEYWORD_PERFORMER,
91	CUEKEYWORD_POSTGAP,
92	CUEKEYWORD_PREGAP,
93	CUEKEYWORD_SONGWRITER,
94	CUEKEYWORD_TITLE,
95	CUEKEYWORD_TRACK,
96	CUEKEYWORD_MODE1_2048,
97	CUEKEYWORD_MODE1_2352,
98	CUEKEYWORD_MODE2_2352,
99	CUEKEYWORD_AUDIO,
100	CUEKEYWORD_REM
101	} CUEKEYWORD;
102
103	/**
104	* CUE sheet token.
105	*/
106	typedef struct CUETOKEN
107	{
108	/** The token type. */
109	CUETOKENTYPE enmType;
110	/** Token type dependent data. */
111	union
112	{
113	/** Keyword token. */
114	struct
115	{
116	/** The keyword enumerator. */
117	CUEKEYWORD enmKeyword;
118	} Keyword;
119	/** String token (without quotation marks). */
120	struct
121	{
122	/** Pointer to the start of the string. */
123	const char *psz;
124	/** Number of characters for the string excluding the null terminator. */
125	size_t cch;
126	} String;
127	/** Integer token. */
128	struct
129	{
130	/** Numerical constant. */
131	uint64_t u64;
132	} Int;
133	/** MSF location token. */
134	struct
135	{
136	/** Minute part. */
137	uint8_t u8Minute;
138	/** Second part. */
139	uint8_t u8Second;
140	/** Frame part. */
141	uint8_t u8Frame;
142	} Msf;
143	} Type;
144	} CUETOKEN;
145	/** Pointer to a CUE sheet token. */
146	typedef CUETOKEN *PCUETOKEN;
147	/** Pointer to a const CUE sheet token. */
148	typedef const CUETOKEN *PCCUETOKEN;
149
150	/**
151	* CUE tokenizer state.
152	*/
153	typedef struct CUETOKENIZER
154	{
155	/** Char buffer to read from. */
156	const char *pszInput;
157	/** Token 1. */
158	CUETOKEN Token1;
159	/** Token 2. */
160	CUETOKEN Token2;
161	/** Pointer to the current active token. */
162	PCUETOKEN pTokenCurr;
163	/** The next token in the input stream (used for peeking). */
164	PCUETOKEN pTokenNext;
165	} CUETOKENIZER;
166	/** Pointer to a CUE tokenizer state. */
167	typedef CUETOKENIZER *PCUETOKENIZER;
168
169	/**
170	* CUE keyword entry.
171	*/
172	typedef struct CUEKEYWORDDESC
173	{
174	/** Keyword string. */
175	const char *pszKeyword;
176	/** Size of the string in characters without zero terminator. */
177	size_t cchKeyword;
178	/** Keyword type. */
179	CUEKEYWORD enmKeyword;
180	} CUEKEYWORDDESC;
181	/** Pointer to a CUE keyword entry. */
182	typedef CUEKEYWORDDESC *PCUEKEYWORDDESC;
183	/** Pointer to a const CUE keyword entry. */
184	typedef const CUEKEYWORDDESC *PCCUEKEYWORDDESC;
185
186	/**
187	* CUE image data structure.
188	*/
189	typedef struct CUEIMAGE
190	{
191	/** Image name. */
192	const char *pszFilename;
193	/** Storage handle. */
194	PVDIOSTORAGE pStorage;
195	/** The backing file containing the actual data. */
196	char *pszDataFilename;
197	/** Storage handle for the backing file. */
198	PVDIOSTORAGE pStorageData;
199
200	/** Pointer to the per-disk VD interface list. */
201	PVDINTERFACE pVDIfsDisk;
202	/** Pointer to the per-image VD interface list. */
203	PVDINTERFACE pVDIfsImage;
204	/** Error interface. */
205	PVDINTERFACEERROR pIfError;
206	/** I/O interface. */
207	PVDINTERFACEIOINT pIfIo;
208
209	/** Open flags passed by VD layer. */
210	unsigned uOpenFlags;
211	/** Image flags defined during creation or determined during open. */
212	unsigned uImageFlags;
213	/** Maximum number of tracks the region list can hold. */
214	uint32_t cTracksMax;
215	/** Pointer to our internal region list. */
216	PVDREGIONLIST pRegionList;
217	/** Flag whether the backing file is little (BINARY) or big (MOTOROLA) endian. */
218	bool fLittleEndian;
219	} CUEIMAGE, *PCUEIMAGE;
220
221
222	/*********************************************************************************************************************************
223	* Static Variables *
224	*********************************************************************************************************************************/
225
226	/** NULL-terminated array of supported file extensions. */
227	static const VDFILEEXTENSION s_aCueFileExtensions[] =
228	{
229	{"cue", VDTYPE_OPTICAL_DISC},
230	{NULL, VDTYPE_INVALID}
231	};
232
233	/**
234	* Known keywords.
235	*/
236	static const CUEKEYWORDDESC g_aCueKeywords[] =
237	{
238	{RT_STR_TUPLE("FILE"), CUEKEYWORD_FILE},
239	{RT_STR_TUPLE("BINARY"), CUEKEYWORD_BINARY},
240	{RT_STR_TUPLE("WAVE"), CUEKEYWORD_WAVE},
241	{RT_STR_TUPLE("MP3"), CUEKEYWORD_MP3},
242	{RT_STR_TUPLE("AIFF"), CUEKEYWORD_AIFF},
243	{RT_STR_TUPLE("CATALOG"), CUEKEYWORD_CATALOG},
244	{RT_STR_TUPLE("CDTEXTFILE"), CUEKEYWORD_CDTEXTFILE},
245	{RT_STR_TUPLE("FLAGS"), CUEKEYWORD_FLAGS},
246	{RT_STR_TUPLE("INDEX"), CUEKEYWORD_INDEX},
247	{RT_STR_TUPLE("ISRC"), CUEKEYWORD_ISRC},
248	{RT_STR_TUPLE("PERFORMER"), CUEKEYWORD_PERFORMER},
249	{RT_STR_TUPLE("POSTGAP"), CUEKEYWORD_POSTGAP},
250	{RT_STR_TUPLE("PREGAP"), CUEKEYWORD_PREGAP},
251	{RT_STR_TUPLE("SONGWRITER"), CUEKEYWORD_SONGWRITER},
252	{RT_STR_TUPLE("TITLE"), CUEKEYWORD_TITLE},
253	{RT_STR_TUPLE("TRACK"), CUEKEYWORD_TRACK},
254	{RT_STR_TUPLE("MODE1/2048"), CUEKEYWORD_MODE1_2048},
255	{RT_STR_TUPLE("MODE1/2352"), CUEKEYWORD_MODE1_2352},
256	{RT_STR_TUPLE("MODE2/2352"), CUEKEYWORD_MODE2_2352},
257	{RT_STR_TUPLE("AUDIO"), CUEKEYWORD_AUDIO},
258	{RT_STR_TUPLE("REM"), CUEKEYWORD_REM}
259	};
260
261
262	/*********************************************************************************************************************************
263	* Internal Functions *
264	*********************************************************************************************************************************/
265
266
267	/**
268	* Converts a MSF formatted address value read from the given buffer
269	* to an LBA number. MSF 00:00:00 equals LBA 0.
270	*
271	* @returns The LBA number.
272	* @param pbBuf The buffer to read the MSF formatted address
273	* from.
274	*/
275	DECLINLINE(uint32_t) cueMSF2LBA(const uint8_t *pbBuf)
276	{
277	return (pbBuf[0] * 60 + pbBuf[1]) * 75 + pbBuf[2];
278	}
279
280	/**
281	* Ensures that the region list can hold up to the given number of tracks.
282	*
283	* @returns VBox status code.
284	* @param pThis The CUE image state.
285	* @param cTracksMax Maximum number of tracks.
286	*/
287	static int cueEnsureRegionListSize(PCUEIMAGE pThis, uint32_t cTracksMax)
288	{
289	int rc = VINF_SUCCESS;
290
291	if (pThis->cTracksMax < cTracksMax)
292	{
293	PVDREGIONLIST pRegionListNew = (PVDREGIONLIST)RTMemRealloc(pThis->pRegionList,
294	RT_UOFFSETOF_DYN(VDREGIONLIST, aRegions[cTracksMax]));
295	if (pRegionListNew)
296	{
297	/* Init all the new allocated tracks. */
298	for (uint32_t i = pThis->cTracksMax; i < cTracksMax; i++)
299	pRegionListNew->aRegions[i].offRegion = UINT64_MAX;
300	pThis->pRegionList = pRegionListNew;
301	pThis->cTracksMax = cTracksMax;
302	}
303	else
304	rc = VERR_NO_MEMORY;
305	}
306
307	return rc;
308	}
309
310	/**
311	* Returns whether the tokenizer reached the end of the stream.
312	*
313	* @returns true if the tokenizer reached the end of stream marker
314	* false otherwise.
315	* @param pTokenizer The tokenizer state.
316	*/
317	DECLINLINE(bool) cueTokenizerIsEos(PCUETOKENIZER pTokenizer)
318	{
319	return *pTokenizer->pszInput == '\0';
320	}
321
322	/**
323	* Skip one character in the input stream.
324	*
325	* @returns nothing.
326	* @param pTokenizer The tokenizer state.
327	*/
328	DECLINLINE(void) cueTokenizerSkipCh(PCUETOKENIZER pTokenizer)
329	{
330	/* Never ever go past EOS. */
331	if (!cueTokenizerIsEos(pTokenizer))
332	pTokenizer->pszInput++;
333	}
334
335	/**
336	* Returns the next char in the input buffer without advancing it.
337	*
338	* @returns Next character in the input buffer.
339	* @param pTokenizer The tokenizer state.
340	*/
341	DECLINLINE(char) cueTokenizerPeekCh(PCUETOKENIZER pTokenizer)
342	{
343	return cueTokenizerIsEos(pTokenizer)
344	? '\0'
345	: *(pTokenizer->pszInput + 1);
346	}
347
348	/**
349	* Returns the next character in the input buffer advancing the internal
350	* position.
351	*
352	* @returns Next character in the stream.
353	* @param pTokenizer The tokenizer state.
354	*/
355	DECLINLINE(char) cueTokenizerGetCh(PCUETOKENIZER pTokenizer)
356	{
357	char ch;
358
359	if (cueTokenizerIsEos(pTokenizer))
360	ch = '\0';
361	else
362	ch = *pTokenizer->pszInput;
363
364	return ch;
365	}
366
367	/**
368	* Sets a new line for the tokenizer.
369	*
370	* @returns nothing.
371	* @param pTokenizer The tokenizer state.
372	* @param cSkip How many characters to skip.
373	*/
374	DECLINLINE(void) cueTokenizerNewLine(PCUETOKENIZER pTokenizer, unsigned cSkip)
375	{
376	pTokenizer->pszInput += cSkip;
377	}
378
379	/**
380	* Checks whether the current position in the input stream is a new line
381	* and skips it.
382	*
383	* @returns Flag whether there was a new line at the current position
384	* in the input buffer.
385	* @param pTokenizer The tokenizer state.
386	*/
387	DECLINLINE(bool) cueTokenizerIsSkipNewLine(PCUETOKENIZER pTokenizer)
388	{
389	bool fNewline = true;
390
391	if ( cueTokenizerGetCh(pTokenizer) == '\r'
392	&& cueTokenizerPeekCh(pTokenizer) == '\n')
393	cueTokenizerNewLine(pTokenizer, 2);
394	else if (cueTokenizerGetCh(pTokenizer) == '\n')
395	cueTokenizerNewLine(pTokenizer, 1);
396	else
397	fNewline = false;
398
399	return fNewline;
400	}
401
402	/**
403	* Skip all whitespace starting from the current input buffer position.
404	* Skips all present comments too.
405	*
406	* @returns nothing.
407	* @param pTokenizer The tokenizer state.
408	*/
409	DECLINLINE(void) cueTokenizerSkipWhitespace(PCUETOKENIZER pTokenizer)
410	{
411	while (!cueTokenizerIsEos(pTokenizer))
412	{
413	while ( cueTokenizerGetCh(pTokenizer) == ' '
414	\|\| cueTokenizerGetCh(pTokenizer) == '\t')
415	cueTokenizerSkipCh(pTokenizer);
416
417	if ( !cueTokenizerIsEos(pTokenizer)
418	&& !cueTokenizerIsSkipNewLine(pTokenizer))
419	break; /* Skipped everything, next is some real content. */
420	}
421	}
422
423	/**
424	* Skips a multi line comment.
425	*
426	* @returns nothing.
427	* @param pTokenizer The tokenizer state.
428	*/
429	DECLINLINE(void) cueTokenizerSkipComment(PCUETOKENIZER pTokenizer)
430	{
431	while ( !cueTokenizerIsEos(pTokenizer)
432	&& !cueTokenizerIsSkipNewLine(pTokenizer))
433	cueTokenizerSkipCh(pTokenizer);
434	cueTokenizerSkipWhitespace(pTokenizer);
435	}
436
437	/**
438	* Get an identifier token from the tokenizer.
439	*
440	* @returns nothing.
441	* @param pTokenizer The tokenizer state.
442	* @param pToken The uninitialized token.
443	*/
444	static void cueTokenizerGetKeyword(PCUETOKENIZER pTokenizer, PCUETOKEN pToken)
445	{
446	char ch;
447	unsigned cchKeyword = 0;
448	bool fIsKeyword = false;
449	bool fIsComment;
450	const char *pszKeyword;
451
452	Assert(RT_C_IS_ALPHA(*pTokenizer->pszInput));
453
454	do
455	{
456	fIsComment = false;
457	pszKeyword = pTokenizer->pszInput;
458
459	do
460	{
461	cchKeyword++;
462	cueTokenizerSkipCh(pTokenizer);
463	ch = cueTokenizerGetCh(pTokenizer);
464	}
465	while (RT_C_IS_ALNUM(ch) \|\| ch == '_' \|\| ch == '/' \|\| ch == '.');
466
467	/* Check whether we got a keyword or a string constant. */
468	for (unsigned i = 0; i < RT_ELEMENTS(g_aCueKeywords); i++)
469	{
470	if (!RTStrNCmp(g_aCueKeywords[i].pszKeyword, pszKeyword, RT_MIN(cchKeyword, g_aCueKeywords[i].cchKeyword)))
471	{
472	if (g_aCueKeywords[i].enmKeyword == CUEKEYWORD_REM)
473	{
474	/* The REM keyword is handled here as it indicates a comment which we just skip. */
475	cueTokenizerSkipComment(pTokenizer);
476	fIsComment = true;
477	}
478	else
479	{
480	fIsKeyword = true;
481	pToken->enmType = CUETOKENTYPE_KEYWORD;
482	pToken->Type.Keyword.enmKeyword = g_aCueKeywords[i].enmKeyword;
483	}
484	break;
485	}
486	}
487	} while (fIsComment);
488
489	/* Make it a string. */
490	if (ch == '\0')
491	pToken->enmType = CUETOKENTYPE_EOS;
492	else if (!fIsKeyword)
493	{
494	pToken->enmType = CUETOKENTYPE_STRING;
495	pToken->Type.String.psz = pszKeyword;
496	pToken->Type.String.cch = cchKeyword;
497	}
498	}
499
500	/**
501	* Get an integer value or MSF location indicator from the tokenizer.
502	*
503	* @returns nothing.
504	* @param pTokenizer The tokenizer state.
505	* @param pToken The uninitialized token.
506	*/
507	static void cueTokenizerGetIntegerOrMsf(PCUETOKENIZER pTokenizer, PCUETOKEN pToken)
508	{
509	char szInt[20 + 1]; /* Maximum which fits into an unsigned 64bit integer + zero terminator. */
510	unsigned cchInt = 0;
511	bool fMsf = false;
512	char ch = cueTokenizerGetCh(pTokenizer);
513
514	Assert(RT_C_IS_DIGIT(ch));
515	RT_ZERO(szInt);
516
517	/* Go through the characters and check for the : mark which denotes MSF location indicator. */
518	do
519	{
520	szInt[cchInt++] = ch;
521	cueTokenizerSkipCh(pTokenizer);
522	ch = cueTokenizerGetCh(pTokenizer);
523	if (ch == ':')
524	fMsf = true;
525	}
526	while ( (RT_C_IS_DIGIT(ch) \|\| ch == ':')
527	&& cchInt < sizeof(szInt));
528
529	if (cchInt < sizeof(szInt) - 1)
530	{
531	if (fMsf)
532	{
533	/* Check that the format matches our expectations (mm:ss:ff). */
534	if ( cchInt == 8 && szInt[2] == ':' && szInt[5] == ':')
535	{
536	/* Parse the single fields. */
537	szInt[2] = '\0';
538	szInt[5] = '\0';
539
540	int rc = RTStrToUInt8Full(&szInt[0], 10, &pToken->Type.Msf.u8Minute);
541	if (RT_SUCCESS(rc))
542	rc = RTStrToUInt8Full(&szInt[3], 10, &pToken->Type.Msf.u8Second);
543	if (RT_SUCCESS(rc))
544	rc = RTStrToUInt8Full(&szInt[6], 10, &pToken->Type.Msf.u8Frame);
545	if (RT_SUCCESS(rc))
546	pToken->enmType = CUETOKENTYPE_MSF;
547	else
548	pToken->enmType = CUETOKENTYPE_ERROR;
549	}
550	else
551	pToken->enmType = CUETOKENTYPE_ERROR;
552	}
553	else
554	{
555	pToken->enmType = CUETOKENTYPE_INTEGER_UNSIGNED;
556	int rc = RTStrToUInt64Full(&szInt[0], 10, &pToken->Type.Int.u64);
557	if (RT_FAILURE(rc))
558	pToken->enmType = CUETOKENTYPE_ERROR;
559	}
560	}
561	else
562	pToken->enmType = CUETOKENTYPE_ERROR;
563	}
564
565	/**
566	* Parses a string constant.
567	*
568	* @returns nothing.
569	* @param pTokenizer The tokenizer state.
570	* @param pToken The uninitialized token.
571	*
572	* @remarks: No escape sequences allowed at this time.
573	*/
574	static void cueTokenizerGetStringConst(PCUETOKENIZER pTokenizer, PCUETOKEN pToken)
575	{
576	unsigned cchStr = 0;
577
578	Assert(cueTokenizerGetCh(pTokenizer) == '\"');
579	cueTokenizerSkipCh(pTokenizer); /* Skip " */
580
581	pToken->enmType = CUETOKENTYPE_STRING;
582	pToken->Type.String.psz = pTokenizer->pszInput;
583
584	while ( !cueTokenizerIsEos(pTokenizer)
585	&& cueTokenizerGetCh(pTokenizer) != '\"')
586	{
587	cchStr++;
588	cueTokenizerSkipCh(pTokenizer);
589	}
590
591	/* End of stream without a closing quote is an error. */
592	if (RT_UNLIKELY(cueTokenizerIsEos(pTokenizer)))
593	pToken->enmType = CUETOKENTYPE_ERROR;
594	else
595	{
596	cueTokenizerSkipCh(pTokenizer); /* Skip closing " */
597	pToken->Type.String.cch = cchStr;
598	}
599	}
600
601	/**
602	* Get the end of stream token.
603	*
604	* @returns nothing.
605	* @param pTokenizer The tokenizer state.
606	* @param pToken The uninitialized token.
607	*/
608	static void cueTokenizerGetEos(PCUETOKENIZER pTokenizer, PCUETOKEN pToken)
609	{
610	Assert(cueTokenizerGetCh(pTokenizer) == '\0'); RT_NOREF(pTokenizer);
611
612	pToken->enmType = CUETOKENTYPE_EOS;
613	}
614
615	/**
616	* Read the next token from the tokenizer stream.
617	*
618	* @returns nothing.
619	* @param pTokenizer The tokenizer to read from.
620	* @param pToken Uninitialized token to fill the token data into.
621	*/
622	static void cueTokenizerReadNextToken(PCUETOKENIZER pTokenizer, PCUETOKEN pToken)
623	{
624	/* Skip all eventually existing whitespace, newlines and comments first. */
625	cueTokenizerSkipWhitespace(pTokenizer);
626
627	char ch = cueTokenizerGetCh(pTokenizer);
628	if (RT_C_IS_ALPHA(ch))
629	cueTokenizerGetKeyword(pTokenizer, pToken);
630	else if (RT_C_IS_DIGIT(ch))
631	cueTokenizerGetIntegerOrMsf(pTokenizer, pToken);
632	else if (ch == '\"')
633	cueTokenizerGetStringConst(pTokenizer, pToken);
634	else if (ch == '\0')
635	cueTokenizerGetEos(pTokenizer, pToken);
636	else
637	pToken->enmType = CUETOKENTYPE_ERROR;
638	}
639
640	/**
641	* Create a new tokenizer.
642	*
643	* @returns Pointer to the new tokenizer state on success.
644	* NULL if out of memory.
645	* @param pszInput The input to create the tokenizer for.
646	*/
647	static PCUETOKENIZER cueTokenizerCreate(const char *pszInput)
648	{
649	PCUETOKENIZER pTokenizer = (PCUETOKENIZER)RTMemAllocZ(sizeof(CUETOKENIZER));
650	if (pTokenizer)
651	{
652	pTokenizer->pszInput = pszInput;
653	pTokenizer->pTokenCurr = &pTokenizer->Token1;
654	pTokenizer->pTokenNext = &pTokenizer->Token2;
655	/* Fill the tokenizer with two first tokens. */
656	cueTokenizerReadNextToken(pTokenizer, pTokenizer->pTokenCurr);
657	cueTokenizerReadNextToken(pTokenizer, pTokenizer->pTokenNext);
658	}
659
660	return pTokenizer;
661	}
662
663	/**
664	* Get the current token in the input stream.
665	*
666	* @returns Pointer to the next token in the stream.
667	* @param pTokenizer The tokenizer to destroy.
668	*/
669	DECLINLINE(PCCUETOKEN) cueTokenizerGetToken(PCUETOKENIZER pTokenizer)
670	{
671	return pTokenizer->pTokenCurr;
672	}
673
674	/**
675	* Get the class of the current token.
676	*
677	* @returns Class of the current token.
678	* @param pTokenizer The tokenizer state.
679	*/
680	DECLINLINE(CUETOKENTYPE) cueTokenizerGetTokenType(PCUETOKENIZER pTokenizer)
681	{
682	return pTokenizer->pTokenCurr->enmType;
683	}
684
685	/**
686	* Consume the current token advancing to the next in the stream.
687	*
688	* @returns nothing.
689	* @param pTokenizer The tokenizer state.
690	*/
691	static void cueTokenizerConsume(PCUETOKENIZER pTokenizer)
692	{
693	PCUETOKEN pTokenTmp = pTokenizer->pTokenCurr;
694
695	/* Switch next token to current token and read in the next token. */
696	pTokenizer->pTokenCurr = pTokenizer->pTokenNext;
697	pTokenizer->pTokenNext = pTokenTmp;
698	cueTokenizerReadNextToken(pTokenizer, pTokenizer->pTokenNext);
699	}
700
701	/**
702	* Check whether the next token in the input stream is a keyword and matches the given
703	* keyword.
704	*
705	* @returns true if the token matched.
706	* false otherwise.
707	* @param pTokenizer The tokenizer state.
708	* @param enmKeyword The keyword to check against.
709	*/
710	static bool cueTokenizerIsKeywordEqual(PCUETOKENIZER pTokenizer, CUEKEYWORD enmKeyword)
711	{
712	PCCUETOKEN pToken = cueTokenizerGetToken(pTokenizer);
713
714	if ( pToken->enmType == CUETOKENTYPE_KEYWORD
715	&& pToken->Type.Keyword.enmKeyword == enmKeyword)
716	return true;
717
718	return false;
719	}
720
721	/**
722	* Check whether the next token in the input stream is a keyword and matches the given
723	* keyword and skips it.
724	*
725	* @returns true if the token matched and was skipped.
726	* false otherwise.
727	* @param pTokenizer The tokenizer state.
728	* @param enmKeyword The keyword to check against.
729	*/
730	static bool cueTokenizerSkipIfIsKeywordEqual(PCUETOKENIZER pTokenizer, CUEKEYWORD enmKeyword)
731	{
732	bool fEqual = cueTokenizerIsKeywordEqual(pTokenizer, enmKeyword);
733	if (fEqual)
734	cueTokenizerConsume(pTokenizer);
735
736	return fEqual;
737	}
738
739	/**
740	* Duplicates the string of the current token and consumes it.
741	*
742	* @returns VBox status code.
743	* @param pTokenizer The tokenizer state.
744	* @param ppszStr Where to store the pointer to the duplicated string on success.
745	* Free with RTStrFree().
746	*/
747	static int cueTokenizerConsumeStringDup(PCUETOKENIZER pTokenizer, char **ppszStr)
748	{
749	int rc = VINF_SUCCESS;
750	Assert(cueTokenizerGetTokenType(pTokenizer) == CUETOKENTYPE_STRING);
751
752	*ppszStr = RTStrDupN(pTokenizer->pTokenCurr->Type.String.psz,
753	pTokenizer->pTokenCurr->Type.String.cch);
754	if (!*ppszStr)
755	rc = VERR_NO_STR_MEMORY;
756
757	cueTokenizerConsume(pTokenizer);
758	return rc;
759	}
760
761	/**
762	* Consumes an integer token returning the value.
763	*
764	* @returns Integer value in the token.
765	* @param pTokenizer The tokenizer state.
766	*/
767	static uint64_t cueTokenizerConsumeInteger(PCUETOKENIZER pTokenizer)
768	{
769	uint64_t u64 = 0;
770	Assert(cueTokenizerGetTokenType(pTokenizer) == CUETOKENTYPE_INTEGER_UNSIGNED);
771
772	u64 = pTokenizer->pTokenCurr->Type.Int.u64;
773	cueTokenizerConsume(pTokenizer);
774	return u64;
775	}
776
777	/**
778	* Parses and skips the remaining string part of a directive.
779	*
780	* @returns VBox status code.
781	* @param pThis The CUE image state.
782	* @param pTokenizer The tokenizer state.
783	* @param pszDirective The directive we skip the string part for.
784	*/
785	static int cueParseAndSkipStringRemainder(PCUEIMAGE pThis, PCUETOKENIZER pTokenizer,
786	const char *pszDirective)
787	{
788	int rc = VINF_SUCCESS;
789
790	if (cueTokenizerGetTokenType(pTokenizer) == CUETOKENTYPE_STRING)
791	cueTokenizerConsume(pTokenizer);
792	else
793	rc = vdIfError(pThis->pIfError, VERR_NOT_SUPPORTED, RT_SRC_POS,
794	N_("CUE: Error parsing '%s', expected string for %s directive"), pThis->pszFilename,
795	pszDirective);
796
797	return rc;
798	}
799
800	/**
801	* Parses and skips the remaining MSF part of a directive.
802	*
803	* @returns VBox status code.
804	* @param pThis The CUE image state.
805	* @param pTokenizer The tokenizer state.
806	* @param pszDirective The directive we skip the string part for.
807	*/
808	static int cueParseAndSkipMsfRemainder(PCUEIMAGE pThis, PCUETOKENIZER pTokenizer,
809	const char *pszDirective)
810	{
811	int rc = VINF_SUCCESS;
812
813	if (cueTokenizerGetTokenType(pTokenizer) == CUETOKENTYPE_MSF)
814	cueTokenizerConsume(pTokenizer);
815	else
816	rc = vdIfError(pThis->pIfError, VERR_NOT_SUPPORTED, RT_SRC_POS,
817	N_("CUE: Error parsing '%s', expected MSF location for %s directive"), pThis->pszFilename,
818	pszDirective);
819
820	return rc;
821	}
822
823	/**
824	* Parses the remainder of a INDEX directive.
825	*
826	* @returns VBox status code.
827	* @param pThis The CUE image state.
828	* @param pTokenizer The tokenizer state.
829	* @param pu8Index Where to store the parsed index number on success.
830	* @param pu64Lba Where to store the parsed positional information on success.
831	*/
832	static int cueParseIndex(PCUEIMAGE pThis, PCUETOKENIZER pTokenizer,
833	uint8_t pu8Index, uint64_t pu64Lba)
834	{
835	int rc = VINF_SUCCESS;
836
837	/*
838	* The index consists of the index number and positional information in MSF format.
839	*/
840	if (cueTokenizerGetTokenType(pTokenizer) == CUETOKENTYPE_INTEGER_UNSIGNED)
841	{
842	uint64_t u64Index = cueTokenizerConsumeInteger(pTokenizer);
843	if (u64Index <= 99)
844	{
845	/* Parse the position. */
846	if (cueTokenizerGetTokenType(pTokenizer) == CUETOKENTYPE_MSF)
847	{
848	PCCUETOKEN pToken = cueTokenizerGetToken(pTokenizer);
849	uint8_t abMsf[3];
850	abMsf[0] = pToken->Type.Msf.u8Minute;
851	abMsf[1] = pToken->Type.Msf.u8Second;
852	abMsf[2] = pToken->Type.Msf.u8Frame;
853
854	*pu8Index = (uint8_t)u64Index;
855	*pu64Lba = cueMSF2LBA(&abMsf[0]);
856	cueTokenizerConsume(pTokenizer);
857	}
858	else
859	rc = vdIfError(pThis->pIfError, VERR_NOT_SUPPORTED, RT_SRC_POS,
860	N_("CUE: Error parsing '%s', expected MSF location"), pThis->pszFilename);
861	}
862	else
863	rc = vdIfError(pThis->pIfError, VERR_NOT_SUPPORTED, RT_SRC_POS,
864	N_("CUE: Error parsing '%s', index number must be between 01 and 99"), pThis->pszFilename);
865	}
866	else
867	rc = vdIfError(pThis->pIfError, VERR_NOT_SUPPORTED, RT_SRC_POS,
868	N_("CUE: Error parsing '%s', expected index number after INDEX directive"), pThis->pszFilename);
869
870	return rc;
871	}
872
873	/**
874	* Parses the things coming below a TRACK directive.
875	*
876	* @returns VBox status code.
877	* @param pThis The CUE image state.
878	* @param pTokenizer The tokenizer state.
879	* @param pu64LbaStart Where to store the starting LBA for this track on success.
880	*/
881	static int cueParseTrackNesting(PCUEIMAGE pThis, PCUETOKENIZER pTokenizer, uint64_t *pu64LbaStart)
882	{
883	int rc = VINF_SUCCESS;
884	bool fSeenInitialIndex = false;
885
886	do
887	{
888	if ( cueTokenizerIsKeywordEqual(pTokenizer, CUEKEYWORD_TRACK)
889	\|\| cueTokenizerGetTokenType(pTokenizer) == CUETOKENTYPE_EOS)
890	break;
891
892	if (cueTokenizerGetTokenType(pTokenizer) == CUETOKENTYPE_KEYWORD)
893	{
894	if (cueTokenizerSkipIfIsKeywordEqual(pTokenizer, CUEKEYWORD_TITLE))
895	rc = cueParseAndSkipStringRemainder(pThis, pTokenizer, "TITLE");
896	else if (cueTokenizerSkipIfIsKeywordEqual(pTokenizer, CUEKEYWORD_PERFORMER))
897	rc = cueParseAndSkipStringRemainder(pThis, pTokenizer, "PERFORMER");
898	else if (cueTokenizerSkipIfIsKeywordEqual(pTokenizer, CUEKEYWORD_PREGAP))
899	rc = cueParseAndSkipMsfRemainder(pThis, pTokenizer, "PREGAP");
900	else if (cueTokenizerSkipIfIsKeywordEqual(pTokenizer, CUEKEYWORD_POSTGAP))
901	rc = cueParseAndSkipMsfRemainder(pThis, pTokenizer, "POSTGAP");
902	else if (cueTokenizerSkipIfIsKeywordEqual(pTokenizer, CUEKEYWORD_INDEX))
903	{
904	uint8_t u8Index = 0;
905	uint64_t u64Lba = 0;
906	rc = cueParseIndex(pThis, pTokenizer, &u8Index, &u64Lba);
907	if ( RT_SUCCESS(rc)
908	&& u8Index == 1)
909	{
910	if (!fSeenInitialIndex)
911	{
912	fSeenInitialIndex = true;
913	*pu64LbaStart = u64Lba;
914	}
915	else
916	rc = vdIfError(pThis->pIfError, VERR_NOT_SUPPORTED, RT_SRC_POS,
917	N_("CUE: Error parsing '%s', multiple INDEX 01 directives"), pThis->pszFilename);
918	}
919	}
920	else
921	rc = vdIfError(pThis->pIfError, VERR_NOT_SUPPORTED, RT_SRC_POS,
922	N_("CUE: Error parsing '%s', unexpected directive for TRACK found"), pThis->pszFilename);
923	}
924	else
925	rc = vdIfError(pThis->pIfError, VERR_NOT_SUPPORTED, RT_SRC_POS,
926	N_("CUE: Error parsing '%s', expected a CUE sheet keyword"), pThis->pszFilename);
927	}
928	while (RT_SUCCESS(rc));
929
930	if ( RT_SUCCESS(rc)
931	&& !fSeenInitialIndex)
932	rc = vdIfError(pThis->pIfError, VERR_NOT_SUPPORTED, RT_SRC_POS,
933	N_("CUE: Error parsing '%s', no initial INDEX directive for this track"), pThis->pszFilename);
934
935	return rc;
936	}
937
938	/**
939	* Parses the remainder of a TRACK directive.
940	*
941	* @returns VBox status code.
942	* @param pThis The CUE image state.
943	* @param pTokenizer The tokenizer state.
944	*/
945	static int cueParseTrack(PCUEIMAGE pThis, PCUETOKENIZER pTokenizer)
946	{
947	int rc = VINF_SUCCESS;
948
949	/*
950	* A track consists of the track number and data type followed by a list of indexes
951	* and other metadata like title and performer we don't care about.
952	*/
953	if (cueTokenizerGetTokenType(pTokenizer) == CUETOKENTYPE_INTEGER_UNSIGNED)
954	{
955	uint64_t u64Track = cueTokenizerConsumeInteger(pTokenizer);
956	if (u64Track <= 99)
957	{
958	/* Parse the data mode. */
959	if (cueTokenizerGetTokenType(pTokenizer) == CUETOKENTYPE_KEYWORD)
960	{
961	CUEKEYWORD enmDataMode = pTokenizer->pTokenCurr->Type.Keyword.enmKeyword;
962	if ( cueTokenizerSkipIfIsKeywordEqual(pTokenizer, CUEKEYWORD_AUDIO)
963	\|\| cueTokenizerSkipIfIsKeywordEqual(pTokenizer, CUEKEYWORD_MODE1_2048)
964	\|\| cueTokenizerSkipIfIsKeywordEqual(pTokenizer, CUEKEYWORD_MODE1_2352)
965	\|\| cueTokenizerSkipIfIsKeywordEqual(pTokenizer, CUEKEYWORD_MODE2_2352))
966	{
967	/*
968	* Parse everything coming below the track (index points, etc.), we only need to find
969	* the starting point.
970	*/
971	uint64_t uLbaStart = 0;
972	rc = cueParseTrackNesting(pThis, pTokenizer, &uLbaStart);
973	if (RT_SUCCESS(rc))
974	{
975	/* Create a new region for this track. */
976	RT_NOREF1(enmDataMode);
977	rc = cueEnsureRegionListSize(pThis, u64Track);
978	if (RT_SUCCESS(rc))
979	{
980	PVDREGIONDESC pRegion = &pThis->pRegionList->aRegions[u64Track - 1];
981	pRegion->offRegion = uLbaStart;
982	if (enmDataMode == CUEKEYWORD_MODE1_2352)
983	{
984	pRegion->cbBlock = 2352;
985	pRegion->enmDataForm = VDREGIONDATAFORM_MODE1_2352;
986	}
987	else if (enmDataMode == CUEKEYWORD_MODE2_2352)
988	{
989	pRegion->cbBlock = 2352;
990	pRegion->enmDataForm = VDREGIONDATAFORM_MODE2_2352;
991	}
992	else if (enmDataMode == CUEKEYWORD_AUDIO)
993	{
994	pRegion->cbBlock = 2352;
995	pRegion->enmDataForm = VDREGIONDATAFORM_CDDA;
996	}
997	else
998	{
999	pRegion->cbBlock = 2048;
1000	pRegion->enmDataForm = VDREGIONDATAFORM_MODE1_2048;
1001	}
1002	pRegion->enmMetadataForm = VDREGIONMETADATAFORM_NONE;
1003	pRegion->cbData = pRegion->cbBlock;
1004	pRegion->cbMetadata = 0;
1005	}
1006	else
1007	rc = vdIfError(pThis->pIfError, rc, RT_SRC_POS,
1008	N_("CUE: Failed to allocate memory for the track list for '%s'"),
1009	pThis->pszFilename);
1010	}
1011	}
1012	else
1013	rc = vdIfError(pThis->pIfError, VERR_NOT_SUPPORTED, RT_SRC_POS,
1014	N_("CUE: Error parsing '%s', the data mode is not supported"), pThis->pszFilename);
1015	}
1016	else
1017	rc = vdIfError(pThis->pIfError, VERR_NOT_SUPPORTED, RT_SRC_POS,
1018	N_("CUE: Error parsing '%s', expected data mode"), pThis->pszFilename);
1019	}
1020	else
1021	rc = vdIfError(pThis->pIfError, VERR_NOT_SUPPORTED, RT_SRC_POS,
1022	N_("CUE: Error parsing '%s', track number must be between 01 and 99"), pThis->pszFilename);
1023	}
1024	else
1025	rc = vdIfError(pThis->pIfError, VERR_NOT_SUPPORTED, RT_SRC_POS,
1026	N_("CUE: Error parsing '%s', expected track number after TRACK directive"), pThis->pszFilename);
1027
1028	return rc;
1029	}
1030
1031	/**
1032	* Parses a list of tracks which must come after a FILE directive.
1033	*
1034	* @returns VBox status code.
1035	* @param pThis The CUE image state.
1036	* @param pTokenizer The tokenizer state.
1037	*/
1038	static int cueParseTrackList(PCUEIMAGE pThis, PCUETOKENIZER pTokenizer)
1039	{
1040	int rc = VINF_SUCCESS;
1041
1042	while ( RT_SUCCESS(rc)
1043	&& cueTokenizerSkipIfIsKeywordEqual(pTokenizer, CUEKEYWORD_TRACK))
1044	rc = cueParseTrack(pThis, pTokenizer);
1045
1046	return rc;
1047	}
1048
1049	/**
1050	* Parses the remainder of a FILE directive.
1051	*
1052	* @returns VBox status code.
1053	* @param pThis The CUE image state.
1054	* @param pTokenizer The tokenizer state.
1055	*/
1056	static int cueParseFile(PCUEIMAGE pThis, PCUETOKENIZER pTokenizer)
1057	{
1058	int rc = VINF_SUCCESS;
1059
1060	/* First must come a string constant followed by a keyword giving the file type. */
1061	if (cueTokenizerGetTokenType(pTokenizer) == CUETOKENTYPE_STRING)
1062	{
1063	rc = cueTokenizerConsumeStringDup(pTokenizer, &pThis->pszDataFilename);
1064	if (RT_SUCCESS(rc))
1065	{
1066	if (cueTokenizerGetTokenType(pTokenizer) == CUETOKENTYPE_KEYWORD)
1067	{
1068	if (cueTokenizerSkipIfIsKeywordEqual(pTokenizer, CUEKEYWORD_BINARY))
1069	{
1070	pThis->fLittleEndian = true;
1071	rc = cueParseTrackList(pThis, pTokenizer);
1072	}
1073	else if (cueTokenizerSkipIfIsKeywordEqual(pTokenizer, CUEKEYWORD_MOTOROLA))
1074	{
1075	pThis->fLittleEndian = false;
1076	rc = cueParseTrackList(pThis, pTokenizer);
1077	}
1078	else
1079	rc = vdIfError(pThis->pIfError, VERR_NOT_SUPPORTED, RT_SRC_POS,
1080	N_("CUE: Error parsing '%s', the file type is not supported (only BINARY)"), pThis->pszFilename);
1081	}
1082	else
1083	rc = vdIfError(pThis->pIfError, rc, RT_SRC_POS,
1084	N_("CUE: Error parsing '%s', expected file type"), pThis->pszFilename);
1085	}
1086	else
1087	rc = vdIfError(pThis->pIfError, rc, RT_SRC_POS,
1088	N_("CUE: Error parsing '%s', failed to allocate memory for filename"), pThis->pszFilename);
1089	}
1090	else
1091	rc = vdIfError(pThis->pIfError, VERR_NOT_SUPPORTED, RT_SRC_POS,
1092	N_("CUE: Error parsing '%s', expected filename after FILE directive"), pThis->pszFilename);
1093
1094	return rc;
1095	}
1096
1097	/**
1098	* Parses the keyword in the given tokenizer.
1099	*
1100	* @returns VBox status code.
1101	* @param pThis The CUE image state.
1102	* @param pTokenizer The tokenizer state.
1103	*/
1104	static int cueParseKeyword(PCUEIMAGE pThis, PCUETOKENIZER pTokenizer)
1105	{
1106	int rc = VINF_SUCCESS;
1107
1108	if (cueTokenizerSkipIfIsKeywordEqual(pTokenizer, CUEKEYWORD_FILE))
1109	rc = cueParseFile(pThis, pTokenizer);
1110	else if (cueTokenizerSkipIfIsKeywordEqual(pTokenizer, CUEKEYWORD_TITLE))
1111	rc = cueParseAndSkipStringRemainder(pThis, pTokenizer, "TITLE");
1112	else if (cueTokenizerSkipIfIsKeywordEqual(pTokenizer, CUEKEYWORD_PERFORMER))
1113	rc = cueParseAndSkipStringRemainder(pThis, pTokenizer, "PERFORMER");
1114	else if (cueTokenizerSkipIfIsKeywordEqual(pTokenizer, CUEKEYWORD_SONGWRITER))
1115	rc = cueParseAndSkipStringRemainder(pThis, pTokenizer, "SONGWRITER");
1116	else /* Skip all other keywords we don't need/support. */
1117	cueTokenizerConsume(pTokenizer);
1118
1119	return rc;
1120	}
1121
1122
1123	/**
1124	* Parses the CUE sheet from the given tokenizer.
1125	*
1126	* @returns VBox status code.
1127	* @param pThis The CUE image state.
1128	* @param pTokenizer The tokenizer state.
1129	*/
1130	static int cueParseFromTokenizer(PCUEIMAGE pThis, PCUETOKENIZER pTokenizer)
1131	{
1132	int rc = VINF_SUCCESS;
1133
1134	LogFlowFunc(("pThis=%p\n", pThis));
1135
1136	/* We don't support multiple FILE directives for now. */
1137	if (cueTokenizerGetTokenType(pTokenizer) == CUETOKENTYPE_KEYWORD)
1138	rc = cueParseKeyword(pThis, pTokenizer);
1139	else
1140	rc = vdIfError(pThis->pIfError, VERR_NOT_SUPPORTED, RT_SRC_POS,
1141	N_("CUE: Error parsing '%s', expected a keyword"), pThis->pszFilename);
1142
1143	if ( RT_SUCCESS(rc)
1144	&& cueTokenizerGetTokenType(pTokenizer) != CUETOKENTYPE_EOS)
1145	rc = vdIfError(pThis->pIfError, VERR_NOT_SUPPORTED, RT_SRC_POS,
1146	N_("CUE: Error parsing '%s', expected end of stream"), pThis->pszFilename);
1147
1148	LogFlowFunc(("returns rc=%Rrc\n", rc));
1149	return rc;
1150	}
1151
1152	/**
1153	* Finalizes the track list of the image.
1154	*
1155	* @returns VBox status code.
1156	* @param pThis The CUE image state.
1157	* @param cbImage Size of the image data in bytes.
1158	*/
1159	static int cueTrackListFinalize(PCUEIMAGE pThis, uint64_t cbImage)
1160	{
1161	int rc = VINF_SUCCESS;
1162
1163	if ( pThis->cTracksMax == 0
1164	\|\| pThis->pRegionList->aRegions[0].offRegion == UINT64_MAX)
1165	return vdIfError(pThis->pIfError, VERR_NOT_SUPPORTED, RT_SRC_POS,
1166	N_("CUE: Error parsing '%s', detected empty track list"), pThis->pszFilename);
1167
1168	/*
1169	* Fixup the track list to contain the proper sizes now that we parsed all tracks,
1170	* check also that there are no gaps in the list.
1171	*/
1172	uint32_t cTracks = 1;
1173	uint64_t offDisk = 0;
1174	for (uint32_t i = 1; i < pThis->cTracksMax; i++)
1175	{
1176	PVDREGIONDESC pRegion = &pThis->pRegionList->aRegions[i];
1177	PVDREGIONDESC pRegionPrev = &pThis->pRegionList->aRegions[i - 1];
1178	if (pRegion->offRegion != UINT64_MAX)
1179	{
1180	cTracks++;
1181	uint64_t cBlocks = pRegion->offRegion - (pRegionPrev->offRegion / pRegionPrev->cbBlock);
1182	pRegionPrev->cRegionBlocksOrBytes = pRegionPrev->cbBlock * cBlocks;
1183	offDisk += pRegionPrev->cRegionBlocksOrBytes;
1184
1185	if (cbImage < pRegionPrev->cRegionBlocksOrBytes)
1186	return vdIfError(pThis->pIfError, VERR_NOT_SUPPORTED, RT_SRC_POS,
1187	N_("CUE: Error parsing '%s', image file is too small for track list"),
1188	pThis->pszFilename);
1189
1190	cbImage -= pRegionPrev->cRegionBlocksOrBytes;
1191	pRegion->offRegion = offDisk;
1192	}
1193	else
1194	break;
1195	}
1196
1197	/* Fixup last track. */
1198	PVDREGIONDESC pRegion = &pThis->pRegionList->aRegions[cTracks - 1];
1199	pRegion->cRegionBlocksOrBytes = cbImage;
1200
1201	pThis->pRegionList->cRegions = cTracks;
1202	pThis->pRegionList->fFlags = 0;
1203
1204	/* Check that there are no gaps in the track list. */
1205	for (uint32_t i = cTracks; cTracks < pThis->cTracksMax; i++)
1206	{
1207	pRegion = &pThis->pRegionList->aRegions[i];
1208	if (pRegion->offRegion != UINT64_MAX)
1209	{
1210	rc = vdIfError(pThis->pIfError, VERR_NOT_SUPPORTED, RT_SRC_POS,
1211	N_("CUE: Error parsing '%s', detected gaps in the track list"), pThis->pszFilename);
1212	break;
1213	}
1214	}
1215
1216	return rc;
1217	}
1218
1219	/**
1220	* Internal. Free all allocated space for representing an image except pThis,
1221	* and optionally delete the image from disk.
1222	*/
1223	static int cueFreeImage(PCUEIMAGE pThis, bool fDelete)
1224	{
1225	int rc = VINF_SUCCESS;
1226
1227	/* Freeing a never allocated image (e.g. because the open failed) is
1228	* not signalled as an error. After all nothing bad happens. */
1229	if (pThis)
1230	{
1231	if (pThis->pStorage)
1232	{
1233	rc = vdIfIoIntFileClose(pThis->pIfIo, pThis->pStorage);
1234	pThis->pStorage = NULL;
1235	}
1236
1237	if (pThis->pStorageData)
1238	{
1239	rc = vdIfIoIntFileClose(pThis->pIfIo, pThis->pStorageData);
1240	pThis->pStorageData = NULL;
1241	}
1242
1243	if (pThis->pRegionList)
1244	{
1245	RTMemFree(pThis->pRegionList);
1246	pThis->pRegionList = NULL;
1247	}
1248
1249	if (pThis->pszDataFilename)
1250	{
1251	RTStrFree(pThis->pszDataFilename);
1252	pThis->pszDataFilename = NULL;
1253	}
1254
1255	if (fDelete && pThis->pszFilename)
1256	vdIfIoIntFileDelete(pThis->pIfIo, pThis->pszFilename);
1257	}
1258
1259	LogFlowFunc(("returns %Rrc\n", rc));
1260	return rc;
1261	}
1262
1263	/**
1264	* Internal: Open an image, constructing all necessary data structures.
1265	*/
1266	static int cueOpenImage(PCUEIMAGE pThis, unsigned uOpenFlags)
1267	{
1268	pThis->uOpenFlags = uOpenFlags;
1269
1270	pThis->pIfError = VDIfErrorGet(pThis->pVDIfsDisk);
1271	pThis->pIfIo = VDIfIoIntGet(pThis->pVDIfsImage);
1272	AssertPtrReturn(pThis->pIfIo, VERR_INVALID_PARAMETER);
1273
1274	/* Open the image. */
1275	int rc = vdIfIoIntFileOpen(pThis->pIfIo, pThis->pszFilename,
1276	VDOpenFlagsToFileOpenFlags(uOpenFlags,
1277	false /* fCreate */),
1278	&pThis->pStorage);
1279	if (RT_SUCCESS(rc))
1280	{
1281	uint64_t cbFile;
1282	/* The descriptor file shouldn't be huge, so limit ourselfs to 16KB for now. */
1283	rc = vdIfIoIntFileGetSize(pThis->pIfIo, pThis->pStorage, &cbFile);
1284	if ( RT_SUCCESS(rc)
1285	&& cbFile <= _16K - 1)
1286	{
1287	char szInput[_16K];
1288	RT_ZERO(szInput);
1289
1290	rc = vdIfIoIntFileReadSync(pThis->pIfIo, pThis->pStorage, 0,
1291	&szInput, cbFile);
1292	if (RT_SUCCESS(rc))
1293	{
1294	RTStrPurgeEncoding(&szInput[0]);
1295	PCUETOKENIZER pTokenizer = cueTokenizerCreate(&szInput[0]);
1296	if (pTokenizer)
1297	{
1298	rc = cueParseFromTokenizer(pThis, pTokenizer);
1299	RTMemFree(pTokenizer);
1300	if (RT_SUCCESS(rc))
1301	{
1302	/* Open the backing file. */
1303	char szBackingFile[RTPATH_MAX];
1304	rc = RTStrCopy(&szBackingFile[0], sizeof(szBackingFile), pThis->pszFilename);
1305	if (RT_SUCCESS(rc))
1306	{
1307	RTPathStripFilename(&szBackingFile[0]);
1308	rc = RTPathAppend(&szBackingFile[0], sizeof(szBackingFile), pThis->pszDataFilename);
1309	if (RT_SUCCESS(rc))
1310	{
1311	rc = vdIfIoIntFileOpen(pThis->pIfIo, szBackingFile,
1312	VDOpenFlagsToFileOpenFlags(uOpenFlags,
1313	false /* fCreate */),
1314	&pThis->pStorageData);
1315	if (RT_SUCCESS(rc))
1316	{
1317	rc = vdIfIoIntFileGetSize(pThis->pIfIo, pThis->pStorageData, &cbFile);
1318	if (RT_SUCCESS(rc))
1319	rc = cueTrackListFinalize(pThis, cbFile);
1320	else
1321	rc = vdIfError(pThis->pIfError, rc, RT_SRC_POS,
1322	N_("CUE: Unable to query size of backing file '%s'"),
1323	szBackingFile);
1324	}
1325	else
1326	rc = vdIfError(pThis->pIfError, rc, RT_SRC_POS,
1327	N_("CUE: Unable to open backing file '%s'"),
1328	szBackingFile);
1329	}
1330	else
1331	rc = vdIfError(pThis->pIfError, rc, RT_SRC_POS,
1332	N_("CUE: Error constructing backing filename from '%s'"),
1333	pThis->pszFilename);
1334	}
1335	else
1336	rc = vdIfError(pThis->pIfError, rc, RT_SRC_POS,
1337	N_("CUE: Error constructing backing filename from '%s'"),
1338	pThis->pszFilename);
1339	}
1340	}
1341	}
1342	else
1343	rc = vdIfError(pThis->pIfError, rc, RT_SRC_POS, N_("CUE: Error reading '%s'"), pThis->pszFilename);
1344	}
1345	else if (RT_SUCCESS(rc))
1346	rc = vdIfError(pThis->pIfError, VERR_VD_INVALID_SIZE,
1347	RT_SRC_POS, N_("CUE: The descriptor file '%s' is too huge (%llu vs %llu)"),
1348	pThis->pszFilename, cbFile, _16K - 1);
1349	}
1350	/* else: Do NOT signal an appropriate error here, as the VD layer has the
1351	* choice of retrying the open if it failed. */
1352
1353	if (RT_FAILURE(rc))
1354	cueFreeImage(pThis, false);
1355	return rc;
1356	}
1357
1358	/**
1359	* Converts the data form enumeration to a string.
1360	*
1361	* @returns String name of the given data form.
1362	* @param enmDataForm The data form.
1363	*/
1364	static const char *cueRegionDataFormStringify(VDREGIONDATAFORM enmDataForm)
1365	{
1366	switch (enmDataForm)
1367	{
1368	#define DATAFORM2STR(tag) case VDREGIONDATAFORM_##tag: return #tag
1369
1370	DATAFORM2STR(INVALID);
1371	DATAFORM2STR(RAW);
1372	DATAFORM2STR(CDDA);
1373	DATAFORM2STR(CDDA_PAUSE);
1374	DATAFORM2STR(MODE1_2048);
1375	DATAFORM2STR(MODE1_2352);
1376	DATAFORM2STR(MODE1_0);
1377	DATAFORM2STR(XA_2336);
1378	DATAFORM2STR(XA_2352);
1379	DATAFORM2STR(XA_0);
1380	DATAFORM2STR(MODE2_2336);
1381	DATAFORM2STR(MODE2_2352);
1382	DATAFORM2STR(MODE2_0);
1383
1384	#undef DATAFORM2STR
1385
1386	default:
1387	{
1388	AssertMsgFailed(("Unknown data form %d! forgot to add it to the switch?\n", enmDataForm));
1389	return "UNKNOWN!";
1390	}
1391	}
1392	}
1393
1394	/**
1395	* Converts the data form enumeration to a string.
1396	*
1397	* @returns String name of the given data form.
1398	* @param enmMetadataForm The metadata form.
1399	*/
1400	static const char *cueRegionMetadataFormStringify(VDREGIONMETADATAFORM enmMetadataForm)
1401	{
1402	switch (enmMetadataForm)
1403	{
1404	#define METADATAFORM2STR(tag) case VDREGIONMETADATAFORM_##tag: return #tag
1405
1406	METADATAFORM2STR(INVALID);
1407	METADATAFORM2STR(RAW);
1408	METADATAFORM2STR(NONE);
1409
1410	#undef METADATAFORM2STR
1411
1412	default:
1413	{
1414	AssertMsgFailed(("Unknown metadata form %d! forgot to add it to the switch?\n", enmMetadataForm));
1415	return "UNKNOWN!";
1416	}
1417	}
1418	}
1419
1420	/**
1421	* Returns the region containing the given offset.
1422	*
1423	* @returns Pointer to the region or NULL if not found.
1424	* @param pThis The CUE image state.
1425	* @param uOffset The offset to look for.
1426	*/
1427	static PCVDREGIONDESC cueRegionQueryByOffset(PCUEIMAGE pThis, uint64_t uOffset)
1428	{
1429	for (uint32_t i = 0; i < pThis->pRegionList->cRegions; i++)
1430	{
1431	PCVDREGIONDESC pRegion = &pThis->pRegionList->aRegions[i];
1432	if ( pRegion->offRegion <= uOffset
1433	&& pRegion->offRegion + pRegion->cRegionBlocksOrBytes > uOffset)
1434	return pRegion;
1435	}
1436
1437	return NULL;
1438	}
1439
1440	/** @copydoc VDIMAGEBACKEND::pfnProbe */
1441	static DECLCALLBACK(int) cueProbe(const char *pszFilename, PVDINTERFACE pVDIfsDisk,
1442	PVDINTERFACE pVDIfsImage, VDTYPE enmDesiredType, VDTYPE *penmType)
1443	{
1444	RT_NOREF(pVDIfsDisk, enmDesiredType);
1445	LogFlowFunc(("pszFilename=\"%s\" pVDIfsDisk=%#p pVDIfsImage=%#p\n", pszFilename, pVDIfsDisk, pVDIfsImage));
1446	int rc = VINF_SUCCESS;
1447
1448	AssertReturn((VALID_PTR(pszFilename) && *pszFilename), VERR_INVALID_PARAMETER);
1449
1450	PCUEIMAGE pThis = (PCUEIMAGE)RTMemAllocZ(sizeof(CUEIMAGE));
1451	if (RT_LIKELY(pThis))
1452	{
1453	pThis->pszFilename = pszFilename;
1454	pThis->pStorage = NULL;
1455	pThis->pVDIfsDisk = pVDIfsDisk;
1456	pThis->pVDIfsImage = pVDIfsImage;
1457
1458	rc = cueOpenImage(pThis, VD_OPEN_FLAGS_INFO \| VD_OPEN_FLAGS_READONLY);
1459	cueFreeImage(pThis, false);
1460	RTMemFree(pThis);
1461
1462	if (RT_SUCCESS(rc))
1463	*penmType = VDTYPE_OPTICAL_DISC;
1464	else
1465	rc = VERR_VD_GEN_INVALID_HEADER;
1466	}
1467	else
1468	rc = VERR_NO_MEMORY;
1469
1470	LogFlowFunc(("returns %Rrc\n", rc));
1471	return rc;
1472	}
1473
1474	/** @copydoc VDIMAGEBACKEND::pfnOpen */
1475	static DECLCALLBACK(int) cueOpen(const char *pszFilename, unsigned uOpenFlags,
1476	PVDINTERFACE pVDIfsDisk, PVDINTERFACE pVDIfsImage,
1477	VDTYPE enmType, void **ppBackendData)
1478	{
1479	LogFlowFunc(("pszFilename=\"%s\" uOpenFlags=%#x pVDIfsDisk=%#p pVDIfsImage=%#p enmType=%u ppBackendData=%#p\n",
1480	pszFilename, uOpenFlags, pVDIfsDisk, pVDIfsImage, enmType, ppBackendData));
1481	int rc;
1482	PCUEIMAGE pThis;
1483
1484	/* Check open flags. All valid flags are supported. */
1485	AssertReturn(!(uOpenFlags & ~VD_OPEN_FLAGS_MASK), VERR_INVALID_PARAMETER);
1486	AssertReturn((VALID_PTR(pszFilename) && *pszFilename), VERR_INVALID_PARAMETER);
1487	AssertReturn(enmType == VDTYPE_OPTICAL_DISC, VERR_NOT_SUPPORTED);
1488
1489	pThis = (PCUEIMAGE)RTMemAllocZ(sizeof(CUEIMAGE));
1490	if (RT_LIKELY(pThis))
1491	{
1492	pThis->pszFilename = pszFilename;
1493	pThis->pStorage = NULL;
1494	pThis->pVDIfsDisk = pVDIfsDisk;
1495	pThis->pVDIfsImage = pVDIfsImage;
1496
1497	rc = cueOpenImage(pThis, uOpenFlags);
1498	if (RT_SUCCESS(rc))
1499	*ppBackendData = pThis;
1500	else
1501	RTMemFree(pThis);
1502	}
1503	else
1504	rc = VERR_NO_MEMORY;
1505
1506	LogFlowFunc(("returns %Rrc (pBackendData=%#p)\n", rc, *ppBackendData));
1507	return rc;
1508	}
1509
1510	/** @copydoc VDIMAGEBACKEND::pfnClose */
1511	static DECLCALLBACK(int) cueClose(void *pBackendData, bool fDelete)
1512	{
1513	LogFlowFunc(("pBackendData=%#p fDelete=%d\n", pBackendData, fDelete));
1514	PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
1515	int rc = cueFreeImage(pThis, fDelete);
1516	RTMemFree(pThis);
1517
1518	LogFlowFunc(("returns %Rrc\n", rc));
1519	return rc;
1520	}
1521
1522	/** @copydoc VDIMAGEBACKEND::pfnRead */
1523	static DECLCALLBACK(int) cueRead(void *pBackendData, uint64_t uOffset, size_t cbToRead,
1524	PVDIOCTX pIoCtx, size_t *pcbActuallyRead)
1525	{
1526	LogFlowFunc(("pBackendData=%#p uOffset=%llu cbToRead=%zu pIoCtx=%#p pcbActuallyRead=%#p\n",
1527	pBackendData, uOffset, cbToRead, pIoCtx, pcbActuallyRead));
1528	int rc = VINF_SUCCESS;
1529	PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
1530
1531	/* Get the region */
1532	PCVDREGIONDESC pRegion = cueRegionQueryByOffset(pThis, uOffset);
1533	if (pRegion)
1534	{
1535	/* Clip read size to remain in the region (not necessary I think). */
1536	uint64_t offRead = uOffset - pRegion->offRegion;
1537
1538	cbToRead = RT_MIN(cbToRead, pRegion->cRegionBlocksOrBytes - offRead);
1539	Assert(!(cbToRead % pRegion->cbBlock));
1540
1541	/* Need to convert audio data samples to big endian. */
1542	if ( pRegion->enmDataForm == VDREGIONDATAFORM_CDDA
1543	&& pThis->fLittleEndian)
1544	{
1545	*pcbActuallyRead = cbToRead;
1546
1547	while (cbToRead)
1548	{
1549	RTSGSEG Segment;
1550	unsigned cSegments = 1;
1551	size_t cbSeg = 0;
1552
1553	cbSeg = vdIfIoIntIoCtxSegArrayCreate(pThis->pIfIo, pIoCtx, &Segment,
1554	&cSegments, cbToRead);
1555
1556	rc = vdIfIoIntFileReadSync(pThis->pIfIo, pThis->pStorageData, uOffset, Segment.pvSeg, cbSeg);
1557	if (RT_FAILURE(rc))
1558	break;
1559
1560	uint16_t pu16Buf = (uint16_t )Segment.pvSeg;
1561	for (uint32_t i = 0; i < cbSeg / sizeof(uint16_t); i++)
1562	{
1563	pu16Buf = RT_BSWAP_U16(pu16Buf);
1564	pu16Buf++;
1565	}
1566
1567	cbToRead -= RT_MIN(cbToRead, cbSeg);
1568	uOffset += cbSeg;
1569	}
1570	}
1571	else
1572	{
1573	rc = vdIfIoIntFileReadUser(pThis->pIfIo, pThis->pStorageData, uOffset,
1574	pIoCtx, cbToRead);
1575	if (RT_SUCCESS(rc))
1576	*pcbActuallyRead = cbToRead;
1577	}
1578	}
1579	else
1580	rc = VERR_INVALID_PARAMETER;
1581
1582	return rc;
1583	}
1584
1585	/** @copydoc VDIMAGEBACKEND::pfnWrite */
1586	static DECLCALLBACK(int) cueWrite(void *pBackendData, uint64_t uOffset, size_t cbToWrite,
1587	PVDIOCTX pIoCtx, size_t pcbWriteProcess, size_t pcbPreRead,
1588	size_t *pcbPostRead, unsigned fWrite)
1589	{
1590	RT_NOREF7(uOffset, cbToWrite, pIoCtx, pcbWriteProcess, pcbPreRead, pcbPostRead, fWrite);
1591	LogFlowFunc(("pBackendData=%#p uOffset=%llu pIoCtx=%#p cbToWrite=%zu pcbWriteProcess=%#p pcbPreRead=%#p pcbPostRead=%#p\n",
1592	pBackendData, uOffset, pIoCtx, cbToWrite, pcbWriteProcess, pcbPreRead, pcbPostRead));
1593	PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
1594	int rc;
1595
1596	AssertPtr(pThis);
1597
1598	if (pThis->uOpenFlags & VD_OPEN_FLAGS_READONLY)
1599	rc = VERR_VD_IMAGE_READ_ONLY;
1600	else
1601	rc = VERR_NOT_SUPPORTED;
1602
1603	LogFlowFunc(("returns %Rrc\n", rc));
1604	return rc;
1605	}
1606
1607	/** @copydoc VDIMAGEBACKEND::pfnFlush */
1608	static DECLCALLBACK(int) cueFlush(void *pBackendData, PVDIOCTX pIoCtx)
1609	{
1610	RT_NOREF2(pBackendData, pIoCtx);
1611
1612	return VINF_SUCCESS;
1613	}
1614
1615	/** @copydoc VDIMAGEBACKEND::pfnGetVersion */
1616	static DECLCALLBACK(unsigned) cueGetVersion(void *pBackendData)
1617	{
1618	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
1619	PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
1620
1621	AssertPtrReturn(pThis, 0);
1622
1623	return 1;
1624	}
1625
1626	/** @copydoc VDIMAGEBACKEND::pfnGetFileSize */
1627	static DECLCALLBACK(uint64_t) cueGetFileSize(void *pBackendData)
1628	{
1629	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
1630	PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
1631
1632	AssertPtrReturn(pThis, 0);
1633
1634	uint64_t cbFile = 0;
1635	if (pThis->pStorage)
1636	{
1637	int rc = vdIfIoIntFileGetSize(pThis->pIfIo, pThis->pStorageData, &cbFile);
1638	if (RT_FAILURE(rc))
1639	cbFile = 0; /* Make sure it is 0 */
1640	}
1641
1642	LogFlowFunc(("returns %lld\n", cbFile));
1643	return cbFile;
1644	}
1645
1646	/** @copydoc VDIMAGEBACKEND::pfnGetPCHSGeometry */
1647	static DECLCALLBACK(int) cueGetPCHSGeometry(void *pBackendData,
1648	PVDGEOMETRY pPCHSGeometry)
1649	{
1650	RT_NOREF1(pPCHSGeometry);
1651	LogFlowFunc(("pBackendData=%#p pPCHSGeometry=%#p\n", pBackendData, pPCHSGeometry));
1652	PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
1653	int rc = VINF_SUCCESS;
1654
1655	AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
1656
1657	rc = VERR_NOT_SUPPORTED;
1658
1659	LogFlowFunc(("returns %Rrc (PCHS=%u/%u/%u)\n", rc, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
1660	return rc;
1661	}
1662
1663	/** @copydoc VDIMAGEBACKEND::pfnSetPCHSGeometry */
1664	static DECLCALLBACK(int) cueSetPCHSGeometry(void *pBackendData,
1665	PCVDGEOMETRY pPCHSGeometry)
1666	{
1667	RT_NOREF1(pPCHSGeometry);
1668	LogFlowFunc(("pBackendData=%#p pPCHSGeometry=%#p PCHS=%u/%u/%u\n",
1669	pBackendData, pPCHSGeometry, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
1670	PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
1671	int rc = VINF_SUCCESS;
1672
1673	AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
1674
1675	if (pThis->uOpenFlags & VD_OPEN_FLAGS_READONLY)
1676	rc = VERR_VD_IMAGE_READ_ONLY;
1677	else
1678	rc = VERR_NOT_SUPPORTED;
1679
1680	LogFlowFunc(("returns %Rrc\n", rc));
1681	return rc;
1682	}
1683
1684	/** @copydoc VDIMAGEBACKEND::pfnGetLCHSGeometry */
1685	static DECLCALLBACK(int) cueGetLCHSGeometry(void *pBackendData,
1686	PVDGEOMETRY pLCHSGeometry)
1687	{
1688	RT_NOREF1(pLCHSGeometry);
1689	LogFlowFunc(("pBackendData=%#p pLCHSGeometry=%#p\n", pBackendData, pLCHSGeometry));
1690	PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
1691	int rc = VINF_SUCCESS;
1692
1693	AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
1694
1695	rc = VERR_NOT_SUPPORTED;
1696
1697	LogFlowFunc(("returns %Rrc (LCHS=%u/%u/%u)\n", rc, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
1698	return rc;
1699	}
1700
1701	/** @copydoc VDIMAGEBACKEND::pfnSetLCHSGeometry */
1702	static DECLCALLBACK(int) cueSetLCHSGeometry(void *pBackendData,
1703	PCVDGEOMETRY pLCHSGeometry)
1704	{
1705	RT_NOREF1(pLCHSGeometry);
1706	LogFlowFunc(("pBackendData=%#p pLCHSGeometry=%#p LCHS=%u/%u/%u\n",
1707	pBackendData, pLCHSGeometry, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
1708	PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
1709	int rc = VINF_SUCCESS;
1710
1711	AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
1712
1713	if (pThis->uOpenFlags & VD_OPEN_FLAGS_READONLY)
1714	rc = VERR_VD_IMAGE_READ_ONLY;
1715	else
1716	rc = VERR_NOT_SUPPORTED;
1717
1718	LogFlowFunc(("returns %Rrc\n", rc));
1719	return rc;
1720	}
1721
1722	/** @copydoc VDIMAGEBACKEND::pfnQueryRegions */
1723	static DECLCALLBACK(int) cueQueryRegions(void pBackendData, PCVDREGIONLIST ppRegionList)
1724	{
1725	LogFlowFunc(("pBackendData=%#p ppRegionList=%#p\n", pBackendData, ppRegionList));
1726	PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
1727
1728	AssertPtrReturn(pThis, VERR_VD_NOT_OPENED);
1729
1730	*ppRegionList = pThis->pRegionList;
1731	LogFlowFunc(("returns %Rrc\n", VINF_SUCCESS));
1732	return VINF_SUCCESS;
1733	}
1734
1735	/** @copydoc VDIMAGEBACKEND::pfnRegionListRelease */
1736	static DECLCALLBACK(void) cueRegionListRelease(void *pBackendData, PCVDREGIONLIST pRegionList)
1737	{
1738	RT_NOREF1(pRegionList);
1739	LogFlowFunc(("pBackendData=%#p pRegionList=%#p\n", pBackendData, pRegionList));
1740	PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
1741	AssertPtr(pThis); RT_NOREF(pThis);
1742
1743	/* Nothing to do here. */
1744	}
1745
1746	/** @copydoc VDIMAGEBACKEND::pfnGetImageFlags */
1747	static DECLCALLBACK(unsigned) cueGetImageFlags(void *pBackendData)
1748	{
1749	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
1750	PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
1751
1752	AssertPtrReturn(pThis, 0);
1753
1754	LogFlowFunc(("returns %#x\n", pThis->uImageFlags));
1755	return pThis->uImageFlags;
1756	}
1757
1758	/** @copydoc VDIMAGEBACKEND::pfnGetOpenFlags */
1759	static DECLCALLBACK(unsigned) cueGetOpenFlags(void *pBackendData)
1760	{
1761	LogFlowFunc(("pBackendData=%#p\n", pBackendData));
1762	PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
1763
1764	AssertPtrReturn(pThis, 0);
1765
1766	LogFlowFunc(("returns %#x\n", pThis->uOpenFlags));
1767	return pThis->uOpenFlags;
1768	}
1769
1770	/** @copydoc VDIMAGEBACKEND::pfnSetOpenFlags */
1771	static DECLCALLBACK(int) cueSetOpenFlags(void *pBackendData, unsigned uOpenFlags)
1772	{
1773	LogFlowFunc(("pBackendData=%#p\n uOpenFlags=%#x", pBackendData, uOpenFlags));
1774	PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
1775	int rc = VINF_SUCCESS;
1776
1777	/* Image must be opened and the new flags must be valid. */
1778	if (!pThis \|\| (uOpenFlags & ~( VD_OPEN_FLAGS_READONLY \| VD_OPEN_FLAGS_INFO
1779	\| VD_OPEN_FLAGS_ASYNC_IO \| VD_OPEN_FLAGS_SHAREABLE
1780	\| VD_OPEN_FLAGS_SEQUENTIAL \| VD_OPEN_FLAGS_SKIP_CONSISTENCY_CHECKS)))
1781	rc = VERR_INVALID_PARAMETER;
1782	else
1783	{
1784	/* Implement this operation via reopening the image. */
1785	rc = cueFreeImage(pThis, false);
1786	if (RT_SUCCESS(rc))
1787	rc = cueOpenImage(pThis, uOpenFlags);
1788	}
1789
1790	LogFlowFunc(("returns %Rrc\n", rc));
1791	return rc;
1792	}
1793
1794	/** @copydoc VDIMAGEBACKEND::pfnGetComment */
1795	VD_BACKEND_CALLBACK_GET_COMMENT_DEF_NOT_SUPPORTED(cueGetComment);
1796
1797	/** @copydoc VDIMAGEBACKEND::pfnSetComment */
1798	VD_BACKEND_CALLBACK_SET_COMMENT_DEF_NOT_SUPPORTED(cueSetComment, PCUEIMAGE);
1799
1800	/** @copydoc VDIMAGEBACKEND::pfnGetUuid */
1801	VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(cueGetUuid);
1802
1803	/** @copydoc VDIMAGEBACKEND::pfnSetUuid */
1804	VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(cueSetUuid, PCUEIMAGE);
1805
1806	/** @copydoc VDIMAGEBACKEND::pfnGetModificationUuid */
1807	VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(cueGetModificationUuid);
1808
1809	/** @copydoc VDIMAGEBACKEND::pfnSetModificationUuid */
1810	VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(cueSetModificationUuid, PCUEIMAGE);
1811
1812	/** @copydoc VDIMAGEBACKEND::pfnGetParentUuid */
1813	VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(cueGetParentUuid);
1814
1815	/** @copydoc VDIMAGEBACKEND::pfnSetParentUuid */
1816	VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(cueSetParentUuid, PCUEIMAGE);
1817
1818	/** @copydoc VDIMAGEBACKEND::pfnGetParentModificationUuid */
1819	VD_BACKEND_CALLBACK_GET_UUID_DEF_NOT_SUPPORTED(cueGetParentModificationUuid);
1820
1821	/** @copydoc VDIMAGEBACKEND::pfnSetParentModificationUuid */
1822	VD_BACKEND_CALLBACK_SET_UUID_DEF_NOT_SUPPORTED(cueSetParentModificationUuid, PCUEIMAGE);
1823
1824	/** @copydoc VDIMAGEBACKEND::pfnDump */
1825	static DECLCALLBACK(void) cueDump(void *pBackendData)
1826	{
1827	PCUEIMAGE pThis = (PCUEIMAGE)pBackendData;
1828
1829	AssertPtrReturnVoid(pThis);
1830	vdIfErrorMessage(pThis->pIfError, "Dumping CUE image \"%s\" mode=%s uOpenFlags=%X File=%#p\n",
1831	pThis->pszFilename,
1832	(pThis->uOpenFlags & VD_OPEN_FLAGS_READONLY) ? "r/o" : "r/w",
1833	pThis->uOpenFlags,
1834	pThis->pStorage);
1835	vdIfErrorMessage(pThis->pIfError, "Backing File \"%s\" File=%#p\n",
1836	pThis->pszDataFilename, pThis->pStorageData);
1837	vdIfErrorMessage(pThis->pIfError, "Number of tracks: %u\n", pThis->pRegionList->cRegions);
1838	for (uint32_t i = 0; i < pThis->pRegionList->cRegions; i++)
1839	{
1840	PCVDREGIONDESC pRegion = &pThis->pRegionList->aRegions[i];
1841
1842	vdIfErrorMessage(pThis->pIfError, "------------------------ Track %u ------------------------\n", i);
1843	vdIfErrorMessage(pThis->pIfError, "Start=%llu Size=%llu BlockSize=%llu DataSize=%llu MetadataSize=%llu\n",
1844	pRegion->offRegion, pRegion->cRegionBlocksOrBytes, pRegion->cbBlock, pRegion->cbData,
1845	pRegion->cbMetadata);
1846	vdIfErrorMessage(pThis->pIfError, "DataForm=%s MetadataForm=%s\n",
1847	cueRegionDataFormStringify(pRegion->enmDataForm),
1848	cueRegionMetadataFormStringify(pRegion->enmMetadataForm));
1849	}
1850	}
1851
1852
1853
1854	const VDIMAGEBACKEND g_CueBackend =
1855	{
1856	/* u32Version */
1857	VD_IMGBACKEND_VERSION,
1858	/* pszBackendName */
1859	"CUE",
1860	/* uBackendCaps */
1861	VD_CAP_FILE \| VD_CAP_VFS,
1862	/* paFileExtensions */
1863	s_aCueFileExtensions,
1864	/* paConfigInfo */
1865	NULL,
1866	/* pfnProbe */
1867	cueProbe,
1868	/* pfnOpen */
1869	cueOpen,
1870	/* pfnCreate */
1871	NULL,
1872	/* pfnRename */
1873	NULL,
1874	/* pfnClose */
1875	cueClose,
1876	/* pfnRead */
1877	cueRead,
1878	/* pfnWrite */
1879	cueWrite,
1880	/* pfnFlush */
1881	cueFlush,
1882	/* pfnDiscard */
1883	NULL,
1884	/* pfnGetVersion */
1885	cueGetVersion,
1886	/* pfnGetFileSize */
1887	cueGetFileSize,
1888	/* pfnGetPCHSGeometry */
1889	cueGetPCHSGeometry,
1890	/* pfnSetPCHSGeometry */
1891	cueSetPCHSGeometry,
1892	/* pfnGetLCHSGeometry */
1893	cueGetLCHSGeometry,
1894	/* pfnSetLCHSGeometry */
1895	cueSetLCHSGeometry,
1896	/* pfnQueryRegions */
1897	cueQueryRegions,
1898	/* pfnRegionListRelease */
1899	cueRegionListRelease,
1900	/* pfnGetImageFlags */
1901	cueGetImageFlags,
1902	/* pfnGetOpenFlags */
1903	cueGetOpenFlags,
1904	/* pfnSetOpenFlags */
1905	cueSetOpenFlags,
1906	/* pfnGetComment */
1907	cueGetComment,
1908	/* pfnSetComment */
1909	cueSetComment,
1910	/* pfnGetUuid */
1911	cueGetUuid,
1912	/* pfnSetUuid */
1913	cueSetUuid,
1914	/* pfnGetModificationUuid */
1915	cueGetModificationUuid,
1916	/* pfnSetModificationUuid */
1917	cueSetModificationUuid,
1918	/* pfnGetParentUuid */
1919	cueGetParentUuid,
1920	/* pfnSetParentUuid */
1921	cueSetParentUuid,
1922	/* pfnGetParentModificationUuid */
1923	cueGetParentModificationUuid,
1924	/* pfnSetParentModificationUuid */
1925	cueSetParentModificationUuid,
1926	/* pfnDump */
1927	cueDump,
1928	/* pfnGetTimestamp */
1929	NULL,
1930	/* pfnGetParentTimestamp */
1931	NULL,
1932	/* pfnSetParentTimestamp */
1933	NULL,
1934	/* pfnGetParentFilename */
1935	NULL,
1936	/* pfnSetParentFilename */
1937	NULL,
1938	/* pfnComposeLocation */
1939	genericFileComposeLocation,
1940	/* pfnComposeName */
1941	genericFileComposeName,
1942	/* pfnCompact */
1943	NULL,
1944	/* pfnResize */
1945	NULL,
1946	/* pfnRepair */
1947	NULL,
1948	/* pfnTraverseMetadata */
1949	NULL,
1950	/* u32VersionEnd */
1951	VD_IMGBACKEND_VERSION
1952	};

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source: vbox/trunk/src/VBox/Storage/CUE.cpp@ 87093

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