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This commit is contained in:
Wilbert Pol 2013-04-26 17:54:55 +00:00
parent d3ebd1027d
commit 25f17d7394
1 changed files with 75 additions and 71 deletions
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146
src/lib/formats/csw_cas.c
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@ -40,28 +40,31 @@ static UINT32 get_leuint32(const void *ptr)
static int mycaslen;
static int csw_cas_to_wav_size( const UINT8 *casdata, int caslen ) {
UINT32 SampleRate;
UINT32 NumberOfPulses;
UINT8 MajorRevision;
UINT8 MinorRevision;
UINT8 CompressionType;
UINT8 Flags;
UINT8 HeaderExtensionLength;
UINT8 *gz_ptr = NULL;
static int csw_cas_to_wav_size( const UINT8 *casdata, int caslen )
{
UINT32 SampleRate;
UINT32 NumberOfPulses;
UINT8 MajorRevision;
UINT8 MinorRevision;
UINT8 CompressionType;
UINT8 Flags;
UINT8 HeaderExtensionLength;
UINT8 *gz_ptr = NULL;
int total_size;
z_stream d_stream;
int err;
UINT8 *in_ptr;
int bsize=0;
int total_size;
z_stream d_stream;
int err;
UINT8 *in_ptr;
int bsize=0;
if ( memcmp( casdata, CSW_HEADER, sizeof(CSW_HEADER) ) ) {
if ( memcmp( casdata, CSW_HEADER, sizeof(CSW_HEADER) ) )
{
LOG_FORMATS( "csw_cas_to_wav_size: cassette image has incompatible header\n" );
goto cleanup;
}
if (casdata[0x16]!=0x1a) {
if (casdata[0x16]!=0x1a)
{
LOG_FORMATS( "csw_cas_to_wav_size: Terminator Code Not Found\n" );
goto cleanup;
}
@ -71,7 +74,8 @@ int bsize=0;
LOG_FORMATS("Version %d : %d\n",MajorRevision,MinorRevision);
if (casdata[0x17]!=2){
if (casdata[0x17]!=2)
{
LOG_FORMATS( "csw_cas_to_wav_size: Unsuported Major Version\n" );
goto cleanup;
}
@ -110,7 +114,8 @@ int bsize=0;
d_stream.data_type=0;
err = inflateInit( &d_stream );
if ( err != Z_OK ) {
if ( err != Z_OK )
{
LOG_FORMATS( "inflateInit2 error: %d\n", err );
goto cleanup;
}
@ -122,9 +127,11 @@ int bsize=0;
d_stream.next_out = gz_ptr;
d_stream.avail_out=1;
err=inflate( &d_stream, Z_SYNC_FLUSH );
if (err==Z_OK) {
if (err==Z_OK)
{
bsize=gz_ptr[0];
if (bsize==0) {
if (bsize==0)
{
d_stream.avail_out=4;
d_stream.next_out = gz_ptr;
err=inflate( &d_stream, Z_SYNC_FLUSH );
@ -135,55 +142,52 @@ int bsize=0;
}
while (err==Z_OK);
if ( err != Z_STREAM_END ) {
if ( err != Z_STREAM_END )
{
LOG_FORMATS( "inflate error: %d\n", err );
goto cleanup;
}
err = inflateEnd( &d_stream );
if ( err != Z_OK ) {
if ( err != Z_OK )
{
LOG_FORMATS( "inflateEnd error: %d\n", err );
goto cleanup;
}
if ( gz_ptr ) {
if ( gz_ptr )
{
free( gz_ptr );
gz_ptr = NULL;
}
return total_size;
cleanup:
if ( gz_ptr ) {
if ( gz_ptr )
{
free( gz_ptr );
gz_ptr = NULL;
}
return -1;
}
static int csw_cas_fill_wave( INT16 *buffer, int length, UINT8 *bytes ) {
UINT32 SampleRate;
UINT32 NumberOfPulses;
UINT8 CompressionType;
UINT8 Flags;
UINT8 HeaderExtensionLength;
INT8 Bit;
static int csw_cas_fill_wave( INT16 *buffer, int length, UINT8 *bytes )
{
UINT32 SampleRate;
UINT32 NumberOfPulses;
UINT8 CompressionType;
UINT8 Flags;
UINT8 HeaderExtensionLength;
INT8 Bit;
UINT8 *gz_ptr = NULL;
int total_size;
z_stream d_stream;
int err;
UINT8 *in_ptr;
int bsize=0;
int i;
UINT8 *gz_ptr = NULL;
int total_size;
z_stream d_stream;
int err;
UINT8 *in_ptr;
int bsize=0;
int i;
LOG_FORMATS("Length %d\n",length);
@ -201,7 +205,9 @@ int i;
if ((Flags&0)==0)
{
Bit=-100;
} else {
}
else
{
Bit=100;
}
@ -213,7 +219,6 @@ int i;
gz_ptr = (UINT8*)malloc( 8 );
d_stream.next_in = (unsigned char *)in_ptr;
d_stream.avail_in = mycaslen - ( in_ptr - bytes );
d_stream.total_in=0;
@ -228,7 +233,8 @@ int i;
d_stream.data_type=0;
err = inflateInit( &d_stream );
if ( err != Z_OK ) {
if ( err != Z_OK )
{
LOG_FORMATS( "inflateInit2 error: %d\n", err );
goto cleanup;
}
@ -240,9 +246,11 @@ int i;
d_stream.next_out = gz_ptr;
d_stream.avail_out=1;
err=inflate( &d_stream, Z_SYNC_FLUSH );
if (err==Z_OK) {
if (err==Z_OK)
{
bsize=gz_ptr[0];
if (bsize==0) {
if (bsize==0)
{
d_stream.avail_out=4;
d_stream.next_out = gz_ptr;
err=inflate( &d_stream, Z_SYNC_FLUSH );
@ -257,39 +265,33 @@ int i;
}
while (err==Z_OK);
if ( err != Z_STREAM_END ) {
if ( err != Z_STREAM_END )
{
LOG_FORMATS( "inflate error: %d\n", err );
goto cleanup;
}
err = inflateEnd( &d_stream );
if ( err != Z_OK ) {
if ( err != Z_OK )
{
LOG_FORMATS( "inflateEnd error: %d\n", err );
goto cleanup;
}
if ( gz_ptr ) {
if ( gz_ptr )
{
free( gz_ptr );
gz_ptr = NULL;
}
return length;
cleanup:
if ( gz_ptr ) {
free( gz_ptr );
gz_ptr = NULL;
}
cleanup:
if ( gz_ptr )
{
free( gz_ptr );
gz_ptr = NULL;
}
return -1;
}
@ -304,11 +306,13 @@ static const struct CassetteLegacyWaveFiller csw_legacy_fill_wave = {
0 /* trailer_samples */
};
static casserr_t csw_cassette_identify( cassette_image *cassette, struct CassetteOptions *opts ) {
static casserr_t csw_cassette_identify( cassette_image *cassette, struct CassetteOptions *opts )
{
return cassette_legacy_identify( cassette, opts, &csw_legacy_fill_wave );
}
static casserr_t csw_cassette_load( cassette_image *cassette ) {
static casserr_t csw_cassette_load( cassette_image *cassette )
{
return cassette_legacy_construct( cassette, &csw_legacy_fill_wave );
}