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https://github.com/dborth/fceugx.git
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DVD reading is fixed!
This commit is contained in:
dborth
parent
10383c8fbe
commit
f3956490f0
154
source/ngc/dvd.c
154
source/ngc/dvd.c
@ -25,6 +25,7 @@
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u64 dvddir = 0;
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u64 dvdrootdir = 0;
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int dvddirlength = 0;
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bool isWii = false;
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#ifdef HW_DOL
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/** DVD I/O Address base **/
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@ -36,52 +37,47 @@ unsigned char DVDreadbuffer[2048] ATTRIBUTE_ALIGN (32);
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unsigned char dvdbuffer[2048];
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/**
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* dvd_read
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*
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* The only DVD function we need - you gotta luv gc-linux self-boots!
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* returns: 1 - ok ; 0 - error
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*/
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/****************************************************************************
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* dvd_read
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*
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* The only DVD function we need - you gotta luv gc-linux self-boots!
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* returns: 1 - ok ; 0 - error
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***************************************************************************/
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int
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dvd_read (void *dst, unsigned int len, u64 offset)
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{
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unsigned char *buffer = (unsigned char *) (unsigned int) DVDreadbuffer;
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if (len > 2048)
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return 0; /*** We only allow 2k reads **/
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DCInvalidateRange ((void *) buffer, len);
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if(offset < 0x57057C00 || (isWii == true && offset < 0x118244F00LL)) // don't read past the end of the DVD
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// don't read past the end of the DVD (1.5 GB for GC DVD, 4.7 GB for DVD)
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if((offset < 0x57057C00) || (isWii && (offset < 0x118244F00LL)))
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{
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unsigned char *buffer = (unsigned char *) (unsigned int) DVDreadbuffer;
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DCInvalidateRange ((void *) buffer, len);
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#ifdef HW_DOL
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#ifdef HW_DOL
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dvd[0] = 0x2E;
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dvd[1] = 0;
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dvd[2] = 0xA8000000;
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dvd[3] = (u32)(offset >> 2);
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dvd[4] = len;
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dvd[5] = (u32) buffer;
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dvd[6] = len;
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dvd[7] = 3;
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// Enable reading with DMA
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while (dvd[7] & 1);
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// Ensure it has completed
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if (dvd[0] & 0x4)
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return 0;
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#else
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if (DI_ReadDVD(buffer, len >> 11, (u32)(offset >> 11)))
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return 0;
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#endif
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dvd[0] = 0x2E;
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dvd[1] = 0;
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dvd[2] = 0xA8000000;
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dvd[3] = (u32)(offset >> 2);
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dvd[4] = len;
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dvd[5] = (u32) buffer;
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dvd[6] = len;
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dvd[7] = 3; /*** Enable reading with DMA ***/
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while (dvd[7] & 1);
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memcpy (dst, buffer, len);
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if (dvd[0] & 0x4) /* Ensure it has completed */
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return 0;
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return 1;
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#elif WII_DVD
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int ret = 1;
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ret = DI_ReadDVD(dst, len >> 11, (u32)(offset >> 11));
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if (ret==0)
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return 1;
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else
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return 0;
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#endif
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}
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return 0;
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@ -99,12 +95,12 @@ dvd_read (void *dst, unsigned int len, u64 offset)
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#define PVDROOT 0x9c
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static int IsJoliet = 0;
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/**
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/****************************************************************************
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* Primary Volume Descriptor
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*
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* The PVD should reside between sector 16 and 31.
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* This is for single session DVD only.
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*/
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***************************************************************************/
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int
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getpvd ()
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{
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@ -167,7 +163,7 @@ getpvd ()
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* TestDVD()
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*
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* Tests if a ISO9660 DVD is inserted and available
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****************************************************************************/
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***************************************************************************/
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bool TestDVD()
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{
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@ -186,12 +182,12 @@ bool TestDVD()
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return true;
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}
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/**
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/****************************************************************************
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* getentry
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*
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* Support function to return the next file entry, if any
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* Declared static to avoid accidental external entry.
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*/
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***************************************************************************/
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static int diroffset = 0;
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static int
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getentry (int entrycount)
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@ -297,7 +293,7 @@ getentry (int entrycount)
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return 0;
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}
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/**
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/****************************************************************************
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* parseDVDdirectory
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*
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* This function will parse the directory tree.
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@ -305,7 +301,7 @@ getentry (int entrycount)
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* getpvd, a previous parse or a menu selection.
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*
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* The return value is number of files collected, or 0 on failure.
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*/
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***************************************************************************/
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int
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ParseDVDdirectory ()
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{
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@ -349,29 +345,28 @@ ParseDVDdirectory ()
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return filecount;
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}
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/**
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* DirectorySearch
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*
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* Searches for the directory name specified within the current directory
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* Returns the index of the directory, or -1 if not found
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*/
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/****************************************************************************
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* DirectorySearch
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*
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* Searches for the directory name specified within the current directory
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* Returns the index of the directory, or -1 if not found
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***************************************************************************/
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int DirectorySearch(char dir[512])
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{
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int i;
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for (i = 0; i < maxfiles; i++ )
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for (int i = 0; i < maxfiles; i++ )
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if (strcmp(filelist[i].filename, dir) == 0)
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return i;
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return -1;
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}
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/**
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* SwitchDVDFolder
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*
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* Recursively searches for any directory path 'dir' specified
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* Also loads the directory contents via ParseDVDdirectory()
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* It relies on dvddir, dvddirlength, and filelist being pre-populated
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*/
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bool DoSwitchDVDFolder(char * dir, int maxDepth)
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/****************************************************************************
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* SwitchDVDFolder
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*
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* Recursively searches for any directory path 'dir' specified
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* Also loads the directory contents via ParseDVDdirectory()
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* It relies on dvddir, dvddirlength, and filelist being pre-populated
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***************************************************************************/
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bool SwitchDVDFolder(char * dir, int maxDepth)
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{
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if(maxDepth > 8) // only search to a max depth of 8 levels
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return false;
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@ -398,7 +393,7 @@ bool DoSwitchDVDFolder(char * dir, int maxDepth)
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if(lastdir)
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return true;
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else
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return DoSwitchDVDFolder(nextdir, maxDepth++);
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return SwitchDVDFolder(nextdir, maxDepth++);
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}
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return false;
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}
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@ -418,17 +413,17 @@ bool SwitchDVDFolder(char origdir[])
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if(dir[strlen(dir)-1] == '/')
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dir[strlen(dir)-1] = 0;
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return DoSwitchDVDFolder(dirptr, 0);
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return SwitchDVDFolder(dirptr, 0);
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}
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/****************************************************************************
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* LoadDVDFile
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* This function will load a file from DVD, in BIN, SMD or ZIP format.
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* This function will load a file from DVD.
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* The values for offset and length are inherited from dvddir and
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* dvddirlength.
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*
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* The buffer parameter should re-use the initial ROM buffer.
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****************************************************************************/
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***************************************************************************/
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int
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LoadDVDFile (unsigned char *buffer)
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@ -487,7 +482,7 @@ LoadDVDFile (unsigned char *buffer)
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* memcard interface.
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*
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* libOGC tends to foul up if you don't, and sometimes does if you do!
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****************************************************************************/
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***************************************************************************/
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#ifdef HW_DOL
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void uselessinquiry ()
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{
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@ -503,7 +498,11 @@ void uselessinquiry ()
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while (dvd[7] & 1);
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}
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void dvd_motor_off( )
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/****************************************************************************
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* dvd_motor_off( )
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* Turns off DVD drive motor so it doesn't make noise (Gamecube only)
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***************************************************************************/
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void dvd_motor_off ()
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{
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dvd[0] = 0x2e;
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dvd[1] = 0;
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@ -520,11 +519,11 @@ void dvd_motor_off( )
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dvd[1] = 0;
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}
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/**
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* dvd_driveid
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*
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* Gets and returns the dvd driveid
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**/
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/****************************************************************************
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* dvd_driveid
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*
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* Gets and returns the dvd driveid
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***************************************************************************/
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int dvd_driveid()
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{
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@ -548,3 +547,20 @@ int dvd_driveid()
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#endif
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/****************************************************************************
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* SetDVDDriveType()
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*
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* Sets the DVD drive ID for use to determine disc size (1.5 GB or 4.7 GB)
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***************************************************************************/
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void SetDVDDriveType()
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{
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#ifdef HW_RVL
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isWii = true;
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#else
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int drvid = dvd_driveid ();
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if ( drvid == 4 || drvid == 6 || drvid == 8 )
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isWii = false;
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else
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isWii = true;
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#endif
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}
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@ -826,12 +826,16 @@ MainMenu (int selectedMenu)
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}
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}
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/*** Remove any still held buttons ***/
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#ifdef HW_RVL
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while( PAD_ButtonsHeld(0) || WPAD_ButtonsHeld(0) )
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VIDEO_WaitVSync();
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#else
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while( PAD_ButtonsHeld(0) )
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VIDEO_WaitVSync();
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#endif
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// Wait for buttons to be released
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int count = 0; // how long we've been waiting for the user to release the button
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while(count < 50 && (
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PAD_ButtonsHeld(0)
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#ifdef HW_RVL
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|| WPAD_ButtonsHeld(0)
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#endif
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))
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{
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VIDEO_WaitVSync();
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count++;
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}
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}
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