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Update libgme to Blargg's Game_Music_Emu 0.6-pre.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30397 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Andree Buschmann 2011-08-31 19:19:49 +00:00
parent d089e10403
commit 13cbade08a
68 changed files with 4113 additions and 4893 deletions
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69
apps/codecs/libgme/kss_emu.h
View file

@ -16,8 +16,8 @@
#include "ay_apu.h"
#include "opl_apu.h"
#include "m3u_playlist.h"
#include "track_filter.h"
typedef short sample_t;
typedef int kss_time_t;
typedef int kss_addr_t;
typedef struct Z80_Cpu Kss_Cpu;
@ -35,7 +35,6 @@ enum {
enum { idle_addr = 0xFFFF };
enum { scc_enabled_true = 0xC000 };
enum { mem_size = 0x10000 };
enum { buf_size = 2048 };
// KSS file header
enum { header_size = 0x20 };
@ -53,7 +52,7 @@ struct header_t
byte bank_mode;
byte extra_header;
byte device_flags;
// KSSX extended data, if extra_header==0x10
byte data_size [4];
byte unused [4];
@ -69,7 +68,7 @@ struct sms_t {
struct Sms_Apu psg;
struct Opl_Apu fm;
};
struct msx_t {
struct Ay_Apu psg;
struct Scc_Apu scc;
@ -84,8 +83,6 @@ struct Kss_Emu {
bool scc_accessed;
bool gain_updated;
int track_count;
unsigned scc_enabled; // 0 or 0xC000
int bank_count;
@ -94,48 +91,34 @@ struct Kss_Emu {
int ay_latch;
// general
int max_initial_silence;
int voice_count;
int const* voice_types;
int mute_mask_;
int tempo;
int gain;
long sample_rate;
int sample_rate;
// track-specific
int track_count;
int current_track;
blargg_long out_time; // number of samples played since start of track
blargg_long emu_time; // number of samples emulator has generated since start of track
bool emu_track_ended_; // emulator has reached end of track
volatile bool track_ended;
// fading
blargg_long fade_start;
int fade_step;
// silence detection
int silence_lookahead; // speed to run emulator when looking ahead for silence
bool ignore_silence;
long silence_time; // number of samples where most recent silence began
long silence_count; // number of samples of silence to play before using buf
long buf_remain; // number of samples left in silence buffer
struct Stereo_Buffer stereo_buffer; // NULL if using custom buffer
long clock_rate_;
int clock_rate_;
unsigned buf_changed_count;
// M3u Playlist
// M3u Playlist
struct M3u_Playlist m3u;
// large items
sample_t buf [buf_size];
struct setup_t tfilter;
struct Track_Filter track_filter;
struct sms_t sms;
struct msx_t msx;
Kss_Cpu cpu;
struct Multi_Buffer stereo_buf; // NULL if using custom buffer
struct Rom_Data rom;
byte unmapped_read [0x100];
byte unmapped_write [page_size];
byte ram [mem_size + cpu_padding];
@ -148,34 +131,46 @@ blargg_err_t Kss_load_mem( struct Kss_Emu* this, const void* data, long size );
blargg_err_t end_frame( struct Kss_Emu* this, kss_time_t );
// Set output sample rate. Must be called only once before loading file.
blargg_err_t Kss_set_sample_rate( struct Kss_Emu* this, long sample_rate );
blargg_err_t Kss_set_sample_rate( struct Kss_Emu* this, int sample_rate );
// Start a track, where 0 is the first track. Also clears warning string.
blargg_err_t Kss_start_track( struct Kss_Emu* this, int track );
// Generate 'count' samples info 'buf'. Output is in stereo. Any emulation
// errors set warning string, and major errors also end track.
blargg_err_t Kss_play( struct Kss_Emu* this, long count, sample_t* buf );
blargg_err_t Kss_play( struct Kss_Emu* this, int count, sample_t* buf );
// Track status/control
// Number of milliseconds (1000 msec = 1 second) played since beginning of track
long Track_tell( struct Kss_Emu* this );
int Track_tell( struct Kss_Emu* this );
// Seek to new time in track. Seeking backwards or far forward can take a while.
blargg_err_t Track_seek( struct Kss_Emu* this, long msec );
blargg_err_t Track_seek( struct Kss_Emu* this, int msec );
// Skip n samples
blargg_err_t Track_skip( struct Kss_Emu* this, long n );
blargg_err_t Track_skip( struct Kss_Emu* this, int n );
// Set start time and length of track fade out. Once fade ends track_ended() returns
// true. Fade time can be changed while track is playing.
void Track_set_fade( struct Kss_Emu* this, long start_msec, long length_msec );
void Track_set_fade( struct Kss_Emu* this, int start_msec, int length_msec );
// True if a track has reached its end
static inline bool Track_ended( struct Kss_Emu* this )
{
return track_ended( &this->track_filter );
}
// Disables automatic end-of-track detection and skipping of silence at beginning
static inline void Track_ignore_silence( struct Kss_Emu* this, bool disable )
{
this->track_filter.silence_ignored_ = disable;
}
// Get track length in milliseconds
static inline long Track_get_length( struct Kss_Emu* this, int n )
static inline int Track_get_length( struct Kss_Emu* this, int n )
{
long length = 0;
int length = 0;
if ( (this->m3u.size > 0) && (n < this->m3u.size) ) {
struct entry_t* entry = &this->m3u.entries [n];