mirror of
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040cb17370
# Conflicts: # CMakeLists.txt # libraries/glslang/OGLCompilersDLL/CMakeLists.txt # libraries/glslang/OGLCompilersDLL/InitializeDll.cpp # libraries/glslang/OGLCompilersDLL/InitializeDll.h # libraries/glslang/glslang/CMakeLists.txt # libraries/glslang/glslang/GenericCodeGen/CodeGen.cpp # libraries/glslang/glslang/GenericCodeGen/Link.cpp # libraries/glslang/glslang/Include/BaseTypes.h # libraries/glslang/glslang/Include/Common.h # libraries/glslang/glslang/Include/ConstantUnion.h # libraries/glslang/glslang/Include/InfoSink.h # libraries/glslang/glslang/Include/InitializeGlobals.h # libraries/glslang/glslang/Include/PoolAlloc.h # libraries/glslang/glslang/Include/ResourceLimits.h # libraries/glslang/glslang/Include/ShHandle.h # libraries/glslang/glslang/Include/Types.h # libraries/glslang/glslang/Include/arrays.h # libraries/glslang/glslang/Include/intermediate.h # libraries/glslang/glslang/Include/revision.h # libraries/glslang/glslang/Include/revision.template # libraries/glslang/glslang/MachineIndependent/Constant.cpp # libraries/glslang/glslang/MachineIndependent/InfoSink.cpp # libraries/glslang/glslang/MachineIndependent/Initialize.cpp # libraries/glslang/glslang/MachineIndependent/Initialize.h # libraries/glslang/glslang/MachineIndependent/IntermTraverse.cpp # libraries/glslang/glslang/MachineIndependent/Intermediate.cpp # libraries/glslang/glslang/MachineIndependent/LiveTraverser.h # libraries/glslang/glslang/MachineIndependent/ParseContextBase.cpp # libraries/glslang/glslang/MachineIndependent/ParseHelper.cpp # libraries/glslang/glslang/MachineIndependent/ParseHelper.h # libraries/glslang/glslang/MachineIndependent/PoolAlloc.cpp # libraries/glslang/glslang/MachineIndependent/RemoveTree.cpp # libraries/glslang/glslang/MachineIndependent/RemoveTree.h # libraries/glslang/glslang/MachineIndependent/Scan.cpp # libraries/glslang/glslang/MachineIndependent/Scan.h # libraries/glslang/glslang/MachineIndependent/ScanContext.h # libraries/glslang/glslang/MachineIndependent/ShaderLang.cpp # libraries/glslang/glslang/MachineIndependent/SymbolTable.cpp # libraries/glslang/glslang/MachineIndependent/SymbolTable.h # libraries/glslang/glslang/MachineIndependent/Versions.cpp # libraries/glslang/glslang/MachineIndependent/Versions.h # libraries/glslang/glslang/MachineIndependent/attribute.cpp # libraries/glslang/glslang/MachineIndependent/attribute.h # libraries/glslang/glslang/MachineIndependent/gl_types.h # libraries/glslang/glslang/MachineIndependent/glslang.y # libraries/glslang/glslang/MachineIndependent/glslang_tab.cpp # libraries/glslang/glslang/MachineIndependent/glslang_tab.cpp.h # libraries/glslang/glslang/MachineIndependent/intermOut.cpp # libraries/glslang/glslang/MachineIndependent/iomapper.cpp # libraries/glslang/glslang/MachineIndependent/iomapper.h # libraries/glslang/glslang/MachineIndependent/limits.cpp # libraries/glslang/glslang/MachineIndependent/linkValidate.cpp # libraries/glslang/glslang/MachineIndependent/localintermediate.h # libraries/glslang/glslang/MachineIndependent/parseConst.cpp # libraries/glslang/glslang/MachineIndependent/parseVersions.h # libraries/glslang/glslang/MachineIndependent/pch.cpp # libraries/glslang/glslang/MachineIndependent/pch.h # libraries/glslang/glslang/MachineIndependent/preprocessor/Pp.cpp # libraries/glslang/glslang/MachineIndependent/preprocessor/PpAtom.cpp # libraries/glslang/glslang/MachineIndependent/preprocessor/PpContext.cpp # libraries/glslang/glslang/MachineIndependent/preprocessor/PpContext.h # libraries/glslang/glslang/MachineIndependent/preprocessor/PpScanner.cpp # libraries/glslang/glslang/MachineIndependent/preprocessor/PpTokens.cpp # libraries/glslang/glslang/MachineIndependent/preprocessor/PpTokens.h # libraries/glslang/glslang/MachineIndependent/propagateNoContraction.cpp # libraries/glslang/glslang/MachineIndependent/propagateNoContraction.h # libraries/glslang/glslang/MachineIndependent/reflection.cpp # libraries/glslang/glslang/MachineIndependent/reflection.h # libraries/glslang/glslang/OSDependent/Unix/CMakeLists.txt # libraries/glslang/glslang/OSDependent/Unix/ossource.cpp # libraries/glslang/glslang/OSDependent/Windows/CMakeLists.txt # libraries/glslang/glslang/OSDependent/Windows/main.cpp # libraries/glslang/glslang/OSDependent/Windows/ossource.cpp # libraries/glslang/glslang/OSDependent/osinclude.h # libraries/glslang/glslang/Public/ShaderLang.h # libraries/glslang/glslang/updateGrammar # libraries/glslang/spirv/CMakeLists.txt # libraries/glslang/spirv/GLSL.ext.AMD.h # libraries/glslang/spirv/GLSL.ext.EXT.h # libraries/glslang/spirv/GLSL.ext.KHR.h # libraries/glslang/spirv/GLSL.ext.NV.h # libraries/glslang/spirv/GLSL.std.450.h # libraries/glslang/spirv/GlslangToSpv.cpp # libraries/glslang/spirv/GlslangToSpv.h # libraries/glslang/spirv/InReadableOrder.cpp # libraries/glslang/spirv/Logger.cpp # libraries/glslang/spirv/Logger.h # libraries/glslang/spirv/SPVRemapper.cpp # libraries/glslang/spirv/SPVRemapper.h # libraries/glslang/spirv/SpvBuilder.cpp # libraries/glslang/spirv/SpvBuilder.h # libraries/glslang/spirv/SpvPostProcess.cpp # libraries/glslang/spirv/SpvTools.cpp # libraries/glslang/spirv/SpvTools.h # libraries/glslang/spirv/bitutils.h # libraries/glslang/spirv/disassemble.cpp # libraries/glslang/spirv/disassemble.h # libraries/glslang/spirv/doc.cpp # libraries/glslang/spirv/doc.h # libraries/glslang/spirv/hex_float.h # libraries/glslang/spirv/spirv.hpp # libraries/glslang/spirv/spvIR.h # src/CMakeLists.txt
358 lines
8.8 KiB
C++
358 lines
8.8 KiB
C++
// Game_Music_Emu https://bitbucket.org/mpyne/game-music-emu/
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#include "Spc_Emu.h"
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#include "blargg_endian.h"
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#include <stdlib.h>
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#include <string.h>
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/* Copyright (C) 2004-2006 Shay Green. This module is free software; you
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can redistribute it and/or modify it under the terms of the GNU Lesser
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General Public License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version. This
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module is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
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details. You should have received a copy of the GNU Lesser General Public
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License along with this module; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
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#include "blargg_source.h"
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// TODO: support Spc_Filter's bass
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Spc_Emu::Spc_Emu()
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{
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set_type( gme_spc_type );
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static const char* const names [Snes_Spc::voice_count] = {
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"DSP 1", "DSP 2", "DSP 3", "DSP 4", "DSP 5", "DSP 6", "DSP 7", "DSP 8"
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};
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set_voice_names( names );
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set_gain( 1.4 );
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}
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Spc_Emu::~Spc_Emu() { }
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// Track info
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long const trailer_offset = 0x10200;
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byte const* Spc_Emu::trailer() const { return &file_data [min( file_size, trailer_offset )]; }
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long Spc_Emu::trailer_size() const { return max( 0L, file_size - trailer_offset ); }
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static void get_spc_xid6( byte const* begin, long size, track_info_t* out )
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{
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// header
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byte const* end = begin + size;
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if ( size < 8 || memcmp( begin, "xid6", 4 ) )
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{
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check( false );
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return;
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}
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long info_size = get_le32( begin + 4 );
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byte const* in = begin + 8;
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if ( end - in > info_size )
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{
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debug_printf( "Extra data after SPC xid6 info\n" );
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end = in + info_size;
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}
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int year = 0;
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char copyright [256 + 5];
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int copyright_len = 0;
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int const year_len = 5;
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while ( end - in >= 4 )
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{
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// header
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int id = in [0];
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int data = in [3] * 0x100 + in [2];
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int type = in [1];
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int len = type ? data : 0;
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in += 4;
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if ( len > end - in )
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{
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check( false );
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break; // block goes past end of data
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}
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// handle specific block types
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char* field = 0;
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switch ( id )
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{
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case 0x01: field = out->song; break;
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case 0x02: field = out->game; break;
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case 0x03: field = out->author; break;
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case 0x04: field = out->dumper; break;
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case 0x07: field = out->comment; break;
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case 0x14: year = data; break;
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//case 0x30: // intro length
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// Many SPCs have intro length set wrong for looped tracks, making it useless
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/*
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case 0x30:
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check( len == 4 );
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if ( len >= 4 )
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{
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out->intro_length = get_le32( in ) / 64;
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if ( out->length > 0 )
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{
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long loop = out->length - out->intro_length;
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if ( loop >= 2000 )
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out->loop_length = loop;
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}
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}
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break;
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*/
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case 0x13:
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copyright_len = min( len, (int) sizeof copyright - year_len );
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memcpy( ©right [year_len], in, copyright_len );
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break;
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default:
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if ( id < 0x01 || (id > 0x07 && id < 0x10) ||
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(id > 0x14 && id < 0x30) || id > 0x36 )
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debug_printf( "Unknown SPC xid6 block: %X\n", (int) id );
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break;
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}
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if ( field )
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{
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check( type == 1 );
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Gme_File::copy_field_( field, (char const*) in, len );
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}
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// skip to next block
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in += len;
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// blocks are supposed to be 4-byte aligned with zero-padding...
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byte const* unaligned = in;
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while ( (in - begin) & 3 && in < end )
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{
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if ( *in++ != 0 )
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{
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// ...but some files have no padding
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in = unaligned;
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debug_printf( "SPC info tag wasn't properly padded to align\n" );
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break;
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}
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}
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}
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char* p = ©right [year_len];
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if ( year )
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{
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*--p = ' ';
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for ( int n = 4; n--; )
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{
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*--p = char (year % 10 + '0');
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year /= 10;
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}
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copyright_len += year_len;
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}
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if ( copyright_len )
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Gme_File::copy_field_( out->copyright, p, copyright_len );
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check( in == end );
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}
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static void get_spc_info( Spc_Emu::header_t const& h, byte const* xid6, long xid6_size,
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track_info_t* out )
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{
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// decode length (can be in text or binary format, sometimes ambiguous ugh)
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long len_secs = 0;
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for ( int i = 0; i < 3; i++ )
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{
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unsigned n = h.len_secs [i] - '0';
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if ( n > 9 )
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{
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// ignore single-digit text lengths
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// (except if author field is present and begins at offset 1, ugh)
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if ( i == 1 && (h.author [0] || !h.author [1]) )
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len_secs = 0;
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break;
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}
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len_secs *= 10;
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len_secs += n;
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}
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if ( !len_secs || len_secs > 0x1FFF )
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len_secs = get_le16( h.len_secs );
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if ( len_secs < 0x1FFF )
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out->length = len_secs * 1000;
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int offset = (h.author [0] < ' ' || unsigned (h.author [0] - '0') <= 9);
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Gme_File::copy_field_( out->author, &h.author [offset], sizeof h.author - offset );
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GME_COPY_FIELD( h, out, song );
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GME_COPY_FIELD( h, out, game );
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GME_COPY_FIELD( h, out, dumper );
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GME_COPY_FIELD( h, out, comment );
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if ( xid6_size )
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get_spc_xid6( xid6, xid6_size, out );
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}
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blargg_err_t Spc_Emu::track_info_( track_info_t* out, int ) const
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{
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get_spc_info( header(), trailer(), trailer_size(), out );
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return 0;
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}
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static blargg_err_t check_spc_header( void const* header )
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{
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if ( memcmp( header, "SNES-SPC700 Sound File Data", 27 ) )
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return gme_wrong_file_type;
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return 0;
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}
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struct Spc_File : Gme_Info_
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{
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Spc_Emu::header_t header;
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blargg_vector<byte> xid6;
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Spc_File() { set_type( gme_spc_type ); }
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blargg_err_t load_( Data_Reader& in )
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{
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long file_size = in.remain();
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if ( file_size < Snes_Spc::spc_min_file_size )
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return gme_wrong_file_type;
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RETURN_ERR( in.read( &header, Spc_Emu::header_size ) );
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RETURN_ERR( check_spc_header( header.tag ) );
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long const xid6_offset = 0x10200;
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long xid6_size = file_size - xid6_offset;
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if ( xid6_size > 0 )
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{
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RETURN_ERR( xid6.resize( xid6_size ) );
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RETURN_ERR( in.skip( xid6_offset - Spc_Emu::header_size ) );
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RETURN_ERR( in.read( xid6.begin(), xid6.size() ) );
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}
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return 0;
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}
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blargg_err_t track_info_( track_info_t* out, int ) const
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{
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get_spc_info( header, xid6.begin(), xid6.size(), out );
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return 0;
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}
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};
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static Music_Emu* new_spc_emu () { return BLARGG_NEW Spc_Emu ; }
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static Music_Emu* new_spc_file() { return BLARGG_NEW Spc_File; }
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static gme_type_t_ const gme_spc_type_ = { "Super Nintendo", 1, &new_spc_emu, &new_spc_file, "SPC", 0 };
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BLARGG_EXPORT extern gme_type_t const gme_spc_type = &gme_spc_type_;
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// Setup
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blargg_err_t Spc_Emu::set_sample_rate_( long sample_rate )
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{
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RETURN_ERR( apu.init() );
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enable_accuracy( false );
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if ( sample_rate != native_sample_rate )
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{
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RETURN_ERR( resampler.buffer_size( native_sample_rate / 20 * 2 ) );
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resampler.time_ratio( (double) native_sample_rate / sample_rate, 0.9965 );
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}
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return 0;
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}
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void Spc_Emu::enable_accuracy_( bool b )
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{
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Music_Emu::enable_accuracy_( b );
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filter.enable( b );
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}
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void Spc_Emu::mute_voices_( int m )
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{
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Music_Emu::mute_voices_( m );
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apu.mute_voices( m );
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}
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blargg_err_t Spc_Emu::load_mem_( byte const* in, long size )
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{
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assert( offsetof (header_t,unused2 [46]) == header_size );
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file_data = in;
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file_size = size;
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set_voice_count( Snes_Spc::voice_count );
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if ( size < Snes_Spc::spc_min_file_size )
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return gme_wrong_file_type;
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return check_spc_header( in );
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}
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// Emulation
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void Spc_Emu::set_tempo_( double t )
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{
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apu.set_tempo( (int) (t * apu.tempo_unit) );
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}
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blargg_err_t Spc_Emu::start_track_( int track )
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{
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RETURN_ERR( Music_Emu::start_track_( track ) );
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resampler.clear();
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filter.clear();
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RETURN_ERR( apu.load_spc( file_data, file_size ) );
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filter.set_gain( (int) (gain() * SPC_Filter::gain_unit) );
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apu.clear_echo();
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track_info_t spc_info;
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RETURN_ERR( track_info_( &spc_info, track ) );
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// Set a default track length, need a non-zero fadeout
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if ( autoload_playback_limit() && ( spc_info.length > 0 ) )
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set_fade ( spc_info.length, 50 );
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return 0;
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}
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blargg_err_t Spc_Emu::play_and_filter( long count, sample_t out [] )
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{
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RETURN_ERR( apu.play( count, out ) );
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filter.run( out, count );
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return 0;
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}
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blargg_err_t Spc_Emu::skip_( long count )
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{
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if ( sample_rate() != native_sample_rate )
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{
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count = long (count * resampler.ratio()) & ~1;
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count -= resampler.skip_input( count );
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}
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// TODO: shouldn't skip be adjusted for the 64 samples read afterwards?
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if ( count > 0 )
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{
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RETURN_ERR( apu.skip( count ) );
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filter.clear();
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}
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// eliminate pop due to resampler
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const int resampler_latency = 64;
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sample_t buf [resampler_latency];
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return play_( resampler_latency, buf );
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}
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blargg_err_t Spc_Emu::play_( long count, sample_t* out )
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{
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if ( sample_rate() == native_sample_rate )
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return play_and_filter( count, out );
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long remain = count;
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while ( remain > 0 )
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{
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remain -= resampler.read( &out [count - remain], remain );
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if ( remain > 0 )
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{
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long n = resampler.max_write();
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RETURN_ERR( play_and_filter( n, resampler.buffer() ) );
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resampler.write( n );
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}
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}
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check( remain == 0 );
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return 0;
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}
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