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// 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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