diff options
Diffstat (limited to 'plugins/gme/game-music-emu-0.6pre/gme/Hes_Emu.cpp')
| -rw-r--r-- | plugins/gme/game-music-emu-0.6pre/gme/Hes_Emu.cpp | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/plugins/gme/game-music-emu-0.6pre/gme/Hes_Emu.cpp b/plugins/gme/game-music-emu-0.6pre/gme/Hes_Emu.cpp new file mode 100644 index 00000000..0253fce3 --- /dev/null +++ b/plugins/gme/game-music-emu-0.6pre/gme/Hes_Emu.cpp @@ -0,0 +1,163 @@ +// Game_Music_Emu 0.6-pre. http://www.slack.net/~ant/
+
+#include "Hes_Emu.h"
+
+#include "blargg_endian.h"
+
+/* Copyright (C) 2006-2008 Shay Green. This module is free software; you
+can redistribute it and/or modify it under the terms of the GNU Lesser
+General Public License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version. This
+module is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+details. You should have received a copy of the GNU Lesser General Public
+License along with this module; if not, write to the Free Software Foundation,
+Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
+
+#include "blargg_source.h"
+
+Hes_Emu::Hes_Emu()
+{
+ set_type( gme_hes_type );
+ set_silence_lookahead( 6 );
+ set_gain( 1.11 );
+}
+
+Hes_Emu::~Hes_Emu() { }
+
+void Hes_Emu::unload()
+{
+ core.unload();
+ Music_Emu::unload();
+}
+
+static byte const* copy_field( byte const in [], char* out )
+{
+ if ( in )
+ {
+ int len = 0x20;
+ if ( in [0x1F] && !in [0x2F] )
+ len = 0x30; // fields are sometimes 16 bytes longer (ugh)
+
+ // since text fields are where any data could be, detect non-text
+ // and fields with data after zero byte terminator
+
+ int i = 0;
+ for ( ; i < len && in [i]; i++ )
+ if ( (unsigned) (in [i] - ' ') >= 0xFF - ' ' ) // also treat 0xFF as non-text
+ return 0; // non-ASCII found
+
+ for ( ; i < len; i++ )
+ if ( in [i] )
+ return 0; // data after terminator
+
+ Gme_File::copy_field_( out, (char const*) in, len );
+ in += len;
+ }
+ return in;
+}
+
+static void copy_hes_fields( byte const in [], track_info_t* out )
+{
+ if ( *in >= ' ' )
+ {
+ in = copy_field( in, out->game );
+ in = copy_field( in, out->author );
+ in = copy_field( in, out->copyright );
+ }
+}
+
+blargg_err_t Hes_Emu::track_info_( track_info_t* out, int ) const
+{
+ copy_hes_fields( core.data() + core.info_offset, out );
+ return blargg_ok;
+}
+
+struct Hes_File : Gme_Info_
+{
+ enum { fields_offset = Hes_Core::header_t::size + Hes_Core::info_offset };
+
+ union header_t {
+ Hes_Core::header_t header;
+ byte data [fields_offset + 0x30 * 3];
+ } h;
+
+ Hes_File()
+ {
+ set_type( gme_hes_type );
+ }
+
+ blargg_err_t load_( Data_Reader& in )
+ {
+ blargg_err_t err = in.read( &h, sizeof h );
+ if ( err )
+ return (blargg_is_err_type( err, blargg_err_file_eof ) ? blargg_err_file_type : err);
+
+ if ( !h.header.valid_tag() )
+ return blargg_err_file_type;
+
+ return blargg_ok;
+ }
+
+ blargg_err_t track_info_( track_info_t* out, int ) const
+ {
+ copy_hes_fields( h.data + fields_offset, out );
+ return blargg_ok;
+ }
+};
+
+static Music_Emu* new_hes_emu () { return BLARGG_NEW Hes_Emu ; }
+static Music_Emu* new_hes_file() { return BLARGG_NEW Hes_File; }
+
+gme_type_t_ const gme_hes_type [1] = {{ "PC Engine", 256, &new_hes_emu, &new_hes_file, "HES", 1 }};
+
+blargg_err_t Hes_Emu::load_( Data_Reader& in )
+{
+ RETURN_ERR( core.load( in ) );
+
+ static const char* const names [Hes_Apu::osc_count + Hes_Apu_Adpcm::osc_count] = {
+ "Wave 1", "Wave 2", "Wave 3", "Wave 4", "Multi 1", "Multi 2", "ADPCM"
+ };
+ set_voice_names( names );
+
+ static int const types [Hes_Apu::osc_count + Hes_Apu_Adpcm::osc_count] = {
+ wave_type+0, wave_type+1, wave_type+2, wave_type+3, mixed_type+0, mixed_type+1, mixed_type+2
+ };
+ set_voice_types( types );
+
+ set_voice_count( core.apu().osc_count + core.adpcm().osc_count );
+ core.apu().volume( gain() );
+ core.adpcm().volume( gain() );
+
+ return setup_buffer( 7159091 );
+}
+
+void Hes_Emu::update_eq( blip_eq_t const& eq )
+{
+ core.apu().treble_eq( eq );
+}
+
+void Hes_Emu::set_voice( int i, Blip_Buffer* c, Blip_Buffer* l, Blip_Buffer* r )
+{
+ if ( i < core.apu().osc_count )
+ core.apu().set_output( i, c, l, r );
+ else if ( i == core.apu().osc_count )
+ core.adpcm().set_output( 0, c, l, r );
+}
+
+void Hes_Emu::set_tempo_( double t )
+{
+ core.set_tempo( t );
+}
+
+blargg_err_t Hes_Emu::start_track_( int track )
+{
+ RETURN_ERR( Classic_Emu::start_track_( track ) );
+ return core.start_track( track );
+}
+
+blargg_err_t Hes_Emu::run_clocks( blip_time_t& duration_, int )
+{
+ return core.end_frame( duration_ );
+}
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