diff options
Diffstat (limited to 'plugins/gme/game-music-emu-0.5.5/player/Music_Player.cpp')
| -rw-r--r-- | plugins/gme/game-music-emu-0.5.5/player/Music_Player.cpp | 231 |
1 files changed, 0 insertions, 231 deletions
diff --git a/plugins/gme/game-music-emu-0.5.5/player/Music_Player.cpp b/plugins/gme/game-music-emu-0.5.5/player/Music_Player.cpp deleted file mode 100644 index e73261fb..00000000 --- a/plugins/gme/game-music-emu-0.5.5/player/Music_Player.cpp +++ /dev/null @@ -1,231 +0,0 @@ -// Game_Music_Emu 0.5.5. http://www.slack.net/~ant/ - -#include "Music_Player.h" - -#include "gme/Music_Emu.h" - -#include <string.h> -#include <ctype.h> - -/* Copyright (C) 2005-2006 by Shay Green. Permission is hereby granted, free of -charge, to any person obtaining a copy of this software module and associated -documentation files (the "Software"), to deal in the Software without -restriction, including without limitation the rights to use, copy, modify, -merge, publish, distribute, sublicense, and/or sell copies of the Software, and -to permit persons to whom the Software is furnished to do so, subject to the -following conditions: The above copyright notice and this permission notice -shall be included in all copies or substantial portions of the Software. THE -SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, -INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A -PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR -COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER -IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ - -#include "blargg_source.h" - -// Number of audio buffers per second. Adjust if you encounter audio skipping. -const int fill_rate = 45; - -// Simple sound driver using SDL -typedef void (*sound_callback_t)( void* data, short* out, int count ); -static const char* sound_init( long sample_rate, int buf_size, sound_callback_t, void* data ); -static void sound_start(); -static void sound_stop(); -static void sound_cleanup(); - -Music_Player::Music_Player() -{ - emu_ = 0; - scope_buf = 0; - paused = false; -} - -blargg_err_t Music_Player::init( long rate ) -{ - sample_rate = rate; - - int min_size = sample_rate * 2 / fill_rate; - int buf_size = 512; - while ( buf_size < min_size ) - buf_size *= 2; - - return sound_init( sample_rate, buf_size, fill_buffer, this ); -} - -void Music_Player::stop() -{ - sound_stop(); - delete emu_; - emu_ = 0; -} - -Music_Player::~Music_Player() -{ - stop(); - sound_cleanup(); -} - -blargg_err_t Music_Player::load_file( const char* path ) -{ - stop(); - - RETURN_ERR( gme_open_file( path, &emu_, sample_rate ) ); - - char m3u_path [256 + 5]; - strncpy( m3u_path, path, 256 ); - m3u_path [256] = 0; - char* p = strrchr( m3u_path, '.' ); - if ( !p ) - p = m3u_path + strlen( m3u_path ); - strcpy( p, ".m3u" ); - if ( emu_->load_m3u( m3u_path ) ) { } // ignore error - - return 0; -} - -int Music_Player::track_count() const -{ - return emu_ ? emu_->track_count() : false; -} - -blargg_err_t Music_Player::start_track( int track ) -{ - if ( emu_ ) - { - // Sound must not be running when operating on emulator - sound_stop(); - RETURN_ERR( emu_->start_track( track ) ); - - // Calculate track length - if ( !emu_->track_info( &track_info_ ) ) - { - if ( track_info_.length <= 0 ) - track_info_.length = track_info_.intro_length + - track_info_.loop_length * 2; - } - if ( track_info_.length <= 0 ) - track_info_.length = (long) (2.5 * 60 * 1000); - emu_->set_fade( track_info_.length ); - - paused = false; - sound_start(); - } - return 0; -} - -void Music_Player::pause( int b ) -{ - paused = b; - if ( b ) - sound_stop(); - else - sound_start(); -} - -void Music_Player::suspend() -{ - if ( !paused ) - sound_stop(); -} - -void Music_Player::resume() -{ - if ( !paused ) - sound_start(); -} - -bool Music_Player::track_ended() const -{ - return emu_ ? emu_->track_ended() : false; -} - -void Music_Player::set_stereo_depth( double tempo ) -{ - suspend(); - gme_set_stereo_depth( emu_, tempo ); - resume(); -} - -void Music_Player::set_tempo( double tempo ) -{ - suspend(); - emu_->set_tempo( tempo ); - resume(); -} - -void Music_Player::mute_voices( int mask ) -{ - suspend(); - emu_->mute_voices( mask ); - emu_->ignore_silence( mask != 0 ); - resume(); -} - -void Music_Player::fill_buffer( void* data, sample_t* out, int count ) -{ - Music_Player* self = (Music_Player*) data; - if ( self->emu_ ) - { - if ( self->emu_->play( count, out ) ) { } // ignore error - - if ( self->scope_buf ) - memcpy( self->scope_buf, out, self->scope_buf_size * sizeof *self->scope_buf ); - } -} - -// Sound output driver using SDL - -#include "SDL.h" - -static sound_callback_t sound_callback; -static void* sound_callback_data; - -static void sdl_callback( void* data, Uint8* out, int count ) -{ - if ( sound_callback ) - sound_callback( sound_callback_data, (short*) out, count / 2 ); -} - -static const char* sound_init( long sample_rate, int buf_size, - sound_callback_t cb, void* data ) -{ - sound_callback = cb; - sound_callback_data = data; - - static SDL_AudioSpec as; // making static clears all fields to 0 - as.freq = sample_rate; - as.format = AUDIO_S16SYS; - as.channels = 2; - as.callback = sdl_callback; - as.samples = buf_size; - if ( SDL_OpenAudio( &as, 0 ) < 0 ) - { - const char* err = SDL_GetError(); - if ( !err ) - err = "Couldn't open SDL audio"; - return err; - } - - return 0; -} - -static void sound_start() -{ - SDL_PauseAudio( false ); -} - -static void sound_stop() -{ - SDL_PauseAudio( true ); - - // be sure audio thread is not active - SDL_LockAudio(); - SDL_UnlockAudio(); -} - -static void sound_cleanup() -{ - sound_stop(); - SDL_CloseAudio(); -} |