Merge branch 'snes' of https://github.com/akumanatt/furnace into akumanatt-snes
This commit is contained in:
tildearrow
commit
c0de45ff0c
19 changed files with 2616 additions and 70 deletions
1032
src/engine/platform/sound/snes/SPC_DSP.cpp
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1032
src/engine/platform/sound/snes/SPC_DSP.cpp
Normal file
File diff suppressed because it is too large
Load diff
322
src/engine/platform/sound/snes/SPC_DSP.h
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322
src/engine/platform/sound/snes/SPC_DSP.h
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@ -0,0 +1,322 @@
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// Highly accurate SNES SPC-700 DSP emulator
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// snes_spc 0.9.0
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#ifndef SPC_DSP_H
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#define SPC_DSP_H
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#include "blargg_common.h"
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extern "C" { typedef void (*dsp_copy_func_t)( unsigned char** io, void* state, size_t ); }
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class SPC_DSP {
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public:
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typedef BOOST::uint8_t uint8_t;
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// Setup
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// Initializes DSP and has it use the 64K RAM provided
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void init( void* ram_64k );
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// Sets destination for output samples. If out is NULL or out_size is 0,
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// doesn't generate any.
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typedef short sample_t;
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void set_output( sample_t* out, int out_size );
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// Number of samples written to output since it was last set, always
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// a multiple of 2. Undefined if more samples were generated than
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// output buffer could hold.
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int sample_count() const;
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// Emulation
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// Resets DSP to power-on state
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void reset();
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// Emulates pressing reset switch on SNES
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void soft_reset();
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// Reads/writes DSP registers. For accuracy, you must first call run()
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// to catch the DSP up to present.
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int read ( int addr ) const;
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void write( int addr, int data );
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// Runs DSP for specified number of clocks (~1024000 per second). Every 32 clocks
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// a pair of samples is be generated.
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void run( int clock_count );
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// Sound control
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// Mutes voices corresponding to non-zero bits in mask (issues repeated KOFF events).
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// Reduces emulation accuracy.
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enum { voice_count = 8 };
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void mute_voices( int mask );
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// State
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// Resets DSP and uses supplied values to initialize registers
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enum { register_count = 128 };
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void load( uint8_t const regs [register_count] );
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// Saves/loads exact emulator state
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enum { state_size = 640 }; // maximum space needed when saving
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typedef dsp_copy_func_t copy_func_t;
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void copy_state( unsigned char** io, copy_func_t );
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// Returns non-zero if new key-on events occurred since last call
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bool check_kon();
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// Furnace addition, gets all current voice outputs to an array of samples
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void get_voice_outputs( sample_t* outs );
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// DSP register addresses
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// Global registers
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enum {
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r_mvoll = 0x0C, r_mvolr = 0x1C,
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r_evoll = 0x2C, r_evolr = 0x3C,
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r_kon = 0x4C, r_koff = 0x5C,
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r_flg = 0x6C, r_endx = 0x7C,
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r_efb = 0x0D, r_pmon = 0x2D,
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r_non = 0x3D, r_eon = 0x4D,
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r_dir = 0x5D, r_esa = 0x6D,
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r_edl = 0x7D,
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r_fir = 0x0F // 8 coefficients at 0x0F, 0x1F ... 0x7F
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};
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// Voice registers
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enum {
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v_voll = 0x00, v_volr = 0x01,
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v_pitchl = 0x02, v_pitchh = 0x03,
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v_srcn = 0x04, v_adsr0 = 0x05,
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v_adsr1 = 0x06, v_gain = 0x07,
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v_envx = 0x08, v_outx = 0x09
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};
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public:
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enum { extra_size = 16 };
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sample_t* extra() { return m.extra; }
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sample_t const* out_pos() const { return m.out; }
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void disable_surround( bool ) { } // not supported
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public:
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BLARGG_DISABLE_NOTHROW
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typedef BOOST::int8_t int8_t;
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typedef BOOST::int16_t int16_t;
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enum { echo_hist_size = 8 };
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enum env_mode_t { env_release, env_attack, env_decay, env_sustain };
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enum { brr_buf_size = 12 };
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struct voice_t
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{
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int buf [brr_buf_size*2];// decoded samples (twice the size to simplify wrap handling)
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int buf_pos; // place in buffer where next samples will be decoded
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int interp_pos; // relative fractional position in sample (0x1000 = 1.0)
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int brr_addr; // address of current BRR block
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int brr_offset; // current decoding offset in BRR block
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uint8_t* regs; // pointer to voice's DSP registers
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int vbit; // bitmask for voice: 0x01 for voice 0, 0x02 for voice 1, etc.
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int kon_delay; // KON delay/current setup phase
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env_mode_t env_mode;
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int env; // current envelope level
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int hidden_env; // used by GAIN mode 7, very obscure quirk
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uint8_t t_envx_out;
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sample_t out[2]; // Furnace addition, for per-channel oscilloscope
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};
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private:
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enum { brr_block_size = 9 };
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struct state_t
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{
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uint8_t regs [register_count];
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// Echo history keeps most recent 8 samples (twice the size to simplify wrap handling)
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int echo_hist [echo_hist_size * 2] [2];
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int (*echo_hist_pos) [2]; // &echo_hist [0 to 7]
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int every_other_sample; // toggles every sample
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int kon; // KON value when last checked
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int noise;
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int counter;
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int echo_offset; // offset from ESA in echo buffer
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int echo_length; // number of bytes that echo_offset will stop at
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int phase; // next clock cycle to run (0-31)
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bool kon_check; // set when a new KON occurs
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// Hidden registers also written to when main register is written to
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int new_kon;
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uint8_t endx_buf;
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uint8_t envx_buf;
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uint8_t outx_buf;
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// Temporary state between clocks
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// read once per sample
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int t_pmon;
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int t_non;
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int t_eon;
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int t_dir;
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int t_koff;
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// read a few clocks ahead then used
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int t_brr_next_addr;
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int t_adsr0;
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int t_brr_header;
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int t_brr_byte;
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int t_srcn;
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int t_esa;
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int t_echo_enabled;
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// internal state that is recalculated every sample
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int t_dir_addr;
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int t_pitch;
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int t_output;
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int t_looped;
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int t_echo_ptr;
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// left/right sums
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int t_main_out [2];
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int t_echo_out [2];
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int t_echo_in [2];
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voice_t voices [voice_count];
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// non-emulation state
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uint8_t* ram; // 64K shared RAM between DSP and SMP
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int mute_mask;
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sample_t* out;
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sample_t* out_end;
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sample_t* out_begin;
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sample_t extra [extra_size];
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};
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state_t m;
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void init_counter();
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void run_counters();
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unsigned read_counter( int rate );
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int interpolate( voice_t const* v );
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void run_envelope( voice_t* const v );
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void decode_brr( voice_t* v );
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void misc_27();
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void misc_28();
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void misc_29();
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void misc_30();
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void voice_output( voice_t* const v, int ch );
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void voice_V1( voice_t* const );
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void voice_V2( voice_t* const );
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void voice_V3( voice_t* const );
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void voice_V3a( voice_t* const );
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void voice_V3b( voice_t* const );
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void voice_V3c( voice_t* const );
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void voice_V4( voice_t* const );
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void voice_V5( voice_t* const );
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void voice_V6( voice_t* const );
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void voice_V7( voice_t* const );
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void voice_V8( voice_t* const );
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void voice_V9( voice_t* const );
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void voice_V7_V4_V1( voice_t* const );
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void voice_V8_V5_V2( voice_t* const );
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void voice_V9_V6_V3( voice_t* const );
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void echo_read( int ch );
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int echo_output( int ch );
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void echo_write( int ch );
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void echo_22();
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void echo_23();
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void echo_24();
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void echo_25();
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void echo_26();
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void echo_27();
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void echo_28();
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void echo_29();
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void echo_30();
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void soft_reset_common();
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public:
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bool mute() { return m.regs[r_flg] & 0x40; }
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};
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#include <assert.h>
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inline int SPC_DSP::sample_count() const { return m.out - m.out_begin; }
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inline int SPC_DSP::read( int addr ) const
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{
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assert( (unsigned) addr < register_count );
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return m.regs [addr];
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}
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inline void SPC_DSP::write( int addr, int data )
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{
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assert( (unsigned) addr < register_count );
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m.regs [addr] = (uint8_t) data;
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switch ( addr & 0x0F )
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{
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case v_envx:
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m.envx_buf = (uint8_t) data;
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break;
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case v_outx:
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m.outx_buf = (uint8_t) data;
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break;
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case 0x0C:
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if ( addr == r_kon )
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m.new_kon = (uint8_t) data;
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if ( addr == r_endx ) // always cleared, regardless of data written
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{
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m.endx_buf = 0;
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m.regs [r_endx] = 0;
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}
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break;
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}
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}
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inline void SPC_DSP::mute_voices( int mask ) { m.mute_mask = mask; }
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inline bool SPC_DSP::check_kon()
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{
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bool old = m.kon_check;
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m.kon_check = 0;
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return old;
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}
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inline void SPC_DSP::get_voice_outputs( sample_t* outs )
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{
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int i;
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for ( i = 0; i < voice_count; i++ )
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{
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voice_t* v = &m.voices [i];
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outs [i * 2] = v->out [0];
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outs [i * 2 + 1] = v->out [1];
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}
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}
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#if !SPC_NO_COPY_STATE_FUNCS
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class SPC_State_Copier {
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SPC_DSP::copy_func_t func;
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unsigned char** buf;
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public:
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SPC_State_Copier( unsigned char** p, SPC_DSP::copy_func_t f ) { func = f; buf = p; }
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void copy( void* state, size_t size );
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int copy_int( int state, int size );
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void skip( int count );
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void extra();
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};
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#define SPC_COPY( type, state )\
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{\
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state = (BOOST::type) copier.copy_int( state, sizeof (BOOST::type) );\
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assert( (BOOST::type) state == state );\
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}
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#endif
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#endif
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186
src/engine/platform/sound/snes/blargg_common.h
Normal file
186
src/engine/platform/sound/snes/blargg_common.h
Normal file
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@ -0,0 +1,186 @@
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// Sets up common environment for Shay Green's libraries.
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// To change configuration options, modify blargg_config.h, not this file.
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// snes_spc 0.9.0
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#ifndef BLARGG_COMMON_H
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#define BLARGG_COMMON_H
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|
||||
#include <stddef.h>
|
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#include <stdlib.h>
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#include <assert.h>
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#include <limits.h>
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|
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#undef BLARGG_COMMON_H
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// allow blargg_config.h to #include blargg_common.h
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#include "blargg_config.h"
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#ifndef BLARGG_COMMON_H
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#define BLARGG_COMMON_H
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|
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// BLARGG_RESTRICT: equivalent to restrict, where supported
|
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#if defined (__GNUC__) || _MSC_VER >= 1100
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#define BLARGG_RESTRICT __restrict
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||||
#else
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#define BLARGG_RESTRICT
|
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#endif
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|
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// STATIC_CAST(T,expr): Used in place of static_cast<T> (expr)
|
||||
#ifndef STATIC_CAST
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#define STATIC_CAST(T,expr) ((T) (expr))
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#endif
|
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|
||||
// blargg_err_t (0 on success, otherwise error string)
|
||||
#ifndef blargg_err_t
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typedef const char* blargg_err_t;
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||||
#endif
|
||||
|
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// blargg_vector - very lightweight vector of POD types (no constructor/destructor)
|
||||
template<class T>
|
||||
class blargg_vector {
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||||
T* begin_;
|
||||
size_t size_;
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||||
public:
|
||||
blargg_vector() : begin_( 0 ), size_( 0 ) { }
|
||||
~blargg_vector() { free( begin_ ); }
|
||||
size_t size() const { return size_; }
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||||
T* begin() const { return begin_; }
|
||||
T* end() const { return begin_ + size_; }
|
||||
blargg_err_t resize( size_t n )
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||||
{
|
||||
// TODO: blargg_common.cpp to hold this as an outline function, ugh
|
||||
void* p = realloc( begin_, n * sizeof (T) );
|
||||
if ( p )
|
||||
begin_ = (T*) p;
|
||||
else if ( n > size_ ) // realloc failure only a problem if expanding
|
||||
return "Out of memory";
|
||||
size_ = n;
|
||||
return 0;
|
||||
}
|
||||
void clear() { void* p = begin_; begin_ = 0; size_ = 0; free( p ); }
|
||||
T& operator [] ( size_t n ) const
|
||||
{
|
||||
assert( n <= size_ ); // <= to allow past-the-end value
|
||||
return begin_ [n];
|
||||
}
|
||||
};
|
||||
|
||||
#ifndef BLARGG_DISABLE_NOTHROW
|
||||
// throw spec mandatory in ISO C++ if operator new can return NULL
|
||||
#if __cplusplus >= 199711 || defined (__GNUC__)
|
||||
#define BLARGG_THROWS( spec ) throw spec
|
||||
#else
|
||||
#define BLARGG_THROWS( spec )
|
||||
#endif
|
||||
#define BLARGG_DISABLE_NOTHROW \
|
||||
void* operator new ( size_t s ) BLARGG_THROWS(()) { return malloc( s ); }\
|
||||
void operator delete ( void* p ) { free( p ); }
|
||||
#define BLARGG_NEW new
|
||||
#else
|
||||
#include <new>
|
||||
#define BLARGG_NEW new (std::nothrow)
|
||||
#endif
|
||||
|
||||
// BLARGG_4CHAR('a','b','c','d') = 'abcd' (four character integer constant)
|
||||
#define BLARGG_4CHAR( a, b, c, d ) \
|
||||
((a&0xFF)*0x1000000L + (b&0xFF)*0x10000L + (c&0xFF)*0x100L + (d&0xFF))
|
||||
|
||||
// BOOST_STATIC_ASSERT( expr ): Generates compile error if expr is 0.
|
||||
#ifndef BOOST_STATIC_ASSERT
|
||||
#ifdef _MSC_VER
|
||||
// MSVC6 (_MSC_VER < 1300) fails for use of __LINE__ when /Zl is specified
|
||||
#define BOOST_STATIC_ASSERT( expr ) \
|
||||
void blargg_failed_( int (*arg) [2 / (int) !!(expr) - 1] )
|
||||
#else
|
||||
// Some other compilers fail when declaring same function multiple times in class,
|
||||
// so differentiate them by line
|
||||
#define BOOST_STATIC_ASSERT( expr ) \
|
||||
void blargg_failed_( int (*arg) [2 / !!(expr) - 1] [__LINE__] )
|
||||
#endif
|
||||
#endif
|
||||
|
||||
// BLARGG_COMPILER_HAS_BOOL: If 0, provides bool support for old compiler. If 1,
|
||||
// compiler is assumed to support bool. If undefined, availability is determined.
|
||||
#ifndef BLARGG_COMPILER_HAS_BOOL
|
||||
#if defined (__MWERKS__)
|
||||
#if !__option(bool)
|
||||
#define BLARGG_COMPILER_HAS_BOOL 0
|
||||
#endif
|
||||
#elif defined (_MSC_VER)
|
||||
#if _MSC_VER < 1100
|
||||
#define BLARGG_COMPILER_HAS_BOOL 0
|
||||
#endif
|
||||
#elif defined (__GNUC__)
|
||||
// supports bool
|
||||
#elif __cplusplus < 199711
|
||||
#define BLARGG_COMPILER_HAS_BOOL 0
|
||||
#endif
|
||||
#endif
|
||||
#if defined (BLARGG_COMPILER_HAS_BOOL) && !BLARGG_COMPILER_HAS_BOOL
|
||||
// If you get errors here, modify your blargg_config.h file
|
||||
typedef int bool;
|
||||
const bool true = 1;
|
||||
const bool false = 0;
|
||||
#endif
|
||||
|
||||
// blargg_long/blargg_ulong = at least 32 bits, int if it's big enough
|
||||
|
||||
#if INT_MAX < 0x7FFFFFFF || LONG_MAX == 0x7FFFFFFF
|
||||
typedef long blargg_long;
|
||||
#else
|
||||
typedef int blargg_long;
|
||||
#endif
|
||||
|
||||
#if UINT_MAX < 0xFFFFFFFF || ULONG_MAX == 0xFFFFFFFF
|
||||
typedef unsigned long blargg_ulong;
|
||||
#else
|
||||
typedef unsigned blargg_ulong;
|
||||
#endif
|
||||
|
||||
// BOOST::int8_t etc.
|
||||
|
||||
// HAVE_STDINT_H: If defined, use <stdint.h> for int8_t etc.
|
||||
#if defined (HAVE_STDINT_H)
|
||||
#include <stdint.h>
|
||||
#define BOOST
|
||||
|
||||
// HAVE_INTTYPES_H: If defined, use <stdint.h> for int8_t etc.
|
||||
#elif defined (HAVE_INTTYPES_H)
|
||||
#include <inttypes.h>
|
||||
#define BOOST
|
||||
|
||||
#else
|
||||
struct BOOST
|
||||
{
|
||||
#if UCHAR_MAX == 0xFF && SCHAR_MAX == 0x7F
|
||||
typedef signed char int8_t;
|
||||
typedef unsigned char uint8_t;
|
||||
#else
|
||||
// No suitable 8-bit type available
|
||||
typedef struct see_blargg_common_h int8_t;
|
||||
typedef struct see_blargg_common_h uint8_t;
|
||||
#endif
|
||||
|
||||
#if USHRT_MAX == 0xFFFF
|
||||
typedef short int16_t;
|
||||
typedef unsigned short uint16_t;
|
||||
#else
|
||||
// No suitable 16-bit type available
|
||||
typedef struct see_blargg_common_h int16_t;
|
||||
typedef struct see_blargg_common_h uint16_t;
|
||||
#endif
|
||||
|
||||
#if ULONG_MAX == 0xFFFFFFFF
|
||||
typedef long int32_t;
|
||||
typedef unsigned long uint32_t;
|
||||
#elif UINT_MAX == 0xFFFFFFFF
|
||||
typedef int int32_t;
|
||||
typedef unsigned int uint32_t;
|
||||
#else
|
||||
// No suitable 32-bit type available
|
||||
typedef struct see_blargg_common_h int32_t;
|
||||
typedef struct see_blargg_common_h uint32_t;
|
||||
#endif
|
||||
};
|
||||
#endif
|
||||
|
||||
#endif
|
||||
#endif
|
||||
26
src/engine/platform/sound/snes/blargg_config.h
Normal file
26
src/engine/platform/sound/snes/blargg_config.h
Normal file
|
|
@ -0,0 +1,26 @@
|
|||
// snes_spc 0.9.0 user configuration file. Don't replace when updating library.
|
||||
|
||||
// snes_spc 0.9.0
|
||||
#ifndef BLARGG_CONFIG_H
|
||||
#define BLARGG_CONFIG_H
|
||||
|
||||
// Uncomment to disable debugging checks
|
||||
#ifndef NDEBUG
|
||||
#define NDEBUG 1
|
||||
#endif
|
||||
|
||||
// Uncomment to enable platform-specific (and possibly non-portable) optimizations
|
||||
//#define BLARGG_NONPORTABLE 1
|
||||
|
||||
// Uncomment if automatic byte-order determination doesn't work
|
||||
//#define BLARGG_BIG_ENDIAN 1
|
||||
|
||||
// Uncomment if you get errors in the bool section of blargg_common.h
|
||||
//#define BLARGG_COMPILER_HAS_BOOL 1
|
||||
|
||||
// Use standard config.h if present
|
||||
#ifdef HAVE_CONFIG_H
|
||||
#include "config.h"
|
||||
#endif
|
||||
|
||||
#endif
|
||||
185
src/engine/platform/sound/snes/blargg_endian.h
Normal file
185
src/engine/platform/sound/snes/blargg_endian.h
Normal file
|
|
@ -0,0 +1,185 @@
|
|||
// CPU Byte Order Utilities
|
||||
|
||||
// snes_spc 0.9.0
|
||||
#ifndef BLARGG_ENDIAN
|
||||
#define BLARGG_ENDIAN
|
||||
|
||||
#include "blargg_common.h"
|
||||
|
||||
// BLARGG_CPU_CISC: Defined if CPU has very few general-purpose registers (< 16)
|
||||
#if defined (_M_IX86) || defined (_M_IA64) || defined (__i486__) || \
|
||||
defined (__x86_64__) || defined (__ia64__) || defined (__i386__)
|
||||
#define BLARGG_CPU_X86 1
|
||||
#define BLARGG_CPU_CISC 1
|
||||
#endif
|
||||
|
||||
#if defined (__powerpc__) || defined (__ppc__) || defined (__POWERPC__) || defined (__powerc)
|
||||
#define BLARGG_CPU_POWERPC 1
|
||||
#define BLARGG_CPU_RISC 1
|
||||
#endif
|
||||
|
||||
// BLARGG_BIG_ENDIAN, BLARGG_LITTLE_ENDIAN: Determined automatically, otherwise only
|
||||
// one may be #defined to 1. Only needed if something actually depends on byte order.
|
||||
#if !defined (BLARGG_BIG_ENDIAN) && !defined (BLARGG_LITTLE_ENDIAN)
|
||||
#ifdef __GLIBC__
|
||||
// GCC handles this for us
|
||||
#include <endian.h>
|
||||
#if __BYTE_ORDER == __LITTLE_ENDIAN
|
||||
#define BLARGG_LITTLE_ENDIAN 1
|
||||
#elif __BYTE_ORDER == __BIG_ENDIAN
|
||||
#define BLARGG_BIG_ENDIAN 1
|
||||
#endif
|
||||
#else
|
||||
|
||||
#if defined (LSB_FIRST) || defined (__LITTLE_ENDIAN__) || BLARGG_CPU_X86 || \
|
||||
(defined (LITTLE_ENDIAN) && LITTLE_ENDIAN+0 != 1234)
|
||||
#define BLARGG_LITTLE_ENDIAN 1
|
||||
#endif
|
||||
|
||||
#if defined (MSB_FIRST) || defined (__BIG_ENDIAN__) || defined (WORDS_BIGENDIAN) || \
|
||||
defined (__sparc__) || BLARGG_CPU_POWERPC || \
|
||||
(defined (BIG_ENDIAN) && BIG_ENDIAN+0 != 4321)
|
||||
#define BLARGG_BIG_ENDIAN 1
|
||||
#elif !defined (__mips__)
|
||||
// No endian specified; assume little-endian, since it's most common
|
||||
#define BLARGG_LITTLE_ENDIAN 1
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#if BLARGG_LITTLE_ENDIAN && BLARGG_BIG_ENDIAN
|
||||
#undef BLARGG_LITTLE_ENDIAN
|
||||
#undef BLARGG_BIG_ENDIAN
|
||||
#endif
|
||||
|
||||
inline void blargg_verify_byte_order()
|
||||
{
|
||||
#ifndef NDEBUG
|
||||
#if BLARGG_BIG_ENDIAN
|
||||
volatile int i = 1;
|
||||
assert( *(volatile char*) &i == 0 );
|
||||
#elif BLARGG_LITTLE_ENDIAN
|
||||
volatile int i = 1;
|
||||
assert( *(volatile char*) &i != 0 );
|
||||
#endif
|
||||
#endif
|
||||
}
|
||||
|
||||
inline unsigned get_le16( void const* p )
|
||||
{
|
||||
return (unsigned) ((unsigned char const*) p) [1] << 8 |
|
||||
(unsigned) ((unsigned char const*) p) [0];
|
||||
}
|
||||
|
||||
inline unsigned get_be16( void const* p )
|
||||
{
|
||||
return (unsigned) ((unsigned char const*) p) [0] << 8 |
|
||||
(unsigned) ((unsigned char const*) p) [1];
|
||||
}
|
||||
|
||||
inline blargg_ulong get_le32( void const* p )
|
||||
{
|
||||
return (blargg_ulong) ((unsigned char const*) p) [3] << 24 |
|
||||
(blargg_ulong) ((unsigned char const*) p) [2] << 16 |
|
||||
(blargg_ulong) ((unsigned char const*) p) [1] << 8 |
|
||||
(blargg_ulong) ((unsigned char const*) p) [0];
|
||||
}
|
||||
|
||||
inline blargg_ulong get_be32( void const* p )
|
||||
{
|
||||
return (blargg_ulong) ((unsigned char const*) p) [0] << 24 |
|
||||
(blargg_ulong) ((unsigned char const*) p) [1] << 16 |
|
||||
(blargg_ulong) ((unsigned char const*) p) [2] << 8 |
|
||||
(blargg_ulong) ((unsigned char const*) p) [3];
|
||||
}
|
||||
|
||||
inline void set_le16( void* p, unsigned n )
|
||||
{
|
||||
((unsigned char*) p) [1] = (unsigned char) (n >> 8);
|
||||
((unsigned char*) p) [0] = (unsigned char) n;
|
||||
}
|
||||
|
||||
inline void set_be16( void* p, unsigned n )
|
||||
{
|
||||
((unsigned char*) p) [0] = (unsigned char) (n >> 8);
|
||||
((unsigned char*) p) [1] = (unsigned char) n;
|
||||
}
|
||||
|
||||
inline void set_le32( void* p, blargg_ulong n )
|
||||
{
|
||||
((unsigned char*) p) [0] = (unsigned char) n;
|
||||
((unsigned char*) p) [1] = (unsigned char) (n >> 8);
|
||||
((unsigned char*) p) [2] = (unsigned char) (n >> 16);
|
||||
((unsigned char*) p) [3] = (unsigned char) (n >> 24);
|
||||
}
|
||||
|
||||
inline void set_be32( void* p, blargg_ulong n )
|
||||
{
|
||||
((unsigned char*) p) [3] = (unsigned char) n;
|
||||
((unsigned char*) p) [2] = (unsigned char) (n >> 8);
|
||||
((unsigned char*) p) [1] = (unsigned char) (n >> 16);
|
||||
((unsigned char*) p) [0] = (unsigned char) (n >> 24);
|
||||
}
|
||||
|
||||
#if BLARGG_NONPORTABLE
|
||||
// Optimized implementation if byte order is known
|
||||
#if BLARGG_LITTLE_ENDIAN
|
||||
#define GET_LE16( addr ) (*(BOOST::uint16_t*) (addr))
|
||||
#define GET_LE32( addr ) (*(BOOST::uint32_t*) (addr))
|
||||
#define SET_LE16( addr, data ) (void) (*(BOOST::uint16_t*) (addr) = (data))
|
||||
#define SET_LE32( addr, data ) (void) (*(BOOST::uint32_t*) (addr) = (data))
|
||||
#elif BLARGG_BIG_ENDIAN
|
||||
#define GET_BE16( addr ) (*(BOOST::uint16_t*) (addr))
|
||||
#define GET_BE32( addr ) (*(BOOST::uint32_t*) (addr))
|
||||
#define SET_BE16( addr, data ) (void) (*(BOOST::uint16_t*) (addr) = (data))
|
||||
#define SET_BE32( addr, data ) (void) (*(BOOST::uint32_t*) (addr) = (data))
|
||||
|
||||
#if BLARGG_CPU_POWERPC
|
||||
// PowerPC has special byte-reversed instructions
|
||||
#if defined (__MWERKS__)
|
||||
#define GET_LE16( addr ) (__lhbrx( addr, 0 ))
|
||||
#define GET_LE32( addr ) (__lwbrx( addr, 0 ))
|
||||
#define SET_LE16( addr, in ) (__sthbrx( in, addr, 0 ))
|
||||
#define SET_LE32( addr, in ) (__stwbrx( in, addr, 0 ))
|
||||
#elif defined (__GNUC__)
|
||||
#define GET_LE16( addr ) ({unsigned ppc_lhbrx_; asm( "lhbrx %0,0,%1" : "=r" (ppc_lhbrx_) : "r" (addr), "0" (ppc_lhbrx_) ); ppc_lhbrx_;})
|
||||
#define GET_LE32( addr ) ({unsigned ppc_lwbrx_; asm( "lwbrx %0,0,%1" : "=r" (ppc_lwbrx_) : "r" (addr), "0" (ppc_lwbrx_) ); ppc_lwbrx_;})
|
||||
#define SET_LE16( addr, in ) ({asm( "sthbrx %0,0,%1" : : "r" (in), "r" (addr) );})
|
||||
#define SET_LE32( addr, in ) ({asm( "stwbrx %0,0,%1" : : "r" (in), "r" (addr) );})
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifndef GET_LE16
|
||||
#define GET_LE16( addr ) get_le16( addr )
|
||||
#define SET_LE16( addr, data ) set_le16( addr, data )
|
||||
#endif
|
||||
|
||||
#ifndef GET_LE32
|
||||
#define GET_LE32( addr ) get_le32( addr )
|
||||
#define SET_LE32( addr, data ) set_le32( addr, data )
|
||||
#endif
|
||||
|
||||
#ifndef GET_BE16
|
||||
#define GET_BE16( addr ) get_be16( addr )
|
||||
#define SET_BE16( addr, data ) set_be16( addr, data )
|
||||
#endif
|
||||
|
||||
#ifndef GET_BE32
|
||||
#define GET_BE32( addr ) get_be32( addr )
|
||||
#define SET_BE32( addr, data ) set_be32( addr, data )
|
||||
#endif
|
||||
|
||||
// auto-selecting versions
|
||||
|
||||
inline void set_le( BOOST::uint16_t* p, unsigned n ) { SET_LE16( p, n ); }
|
||||
inline void set_le( BOOST::uint32_t* p, blargg_ulong n ) { SET_LE32( p, n ); }
|
||||
inline void set_be( BOOST::uint16_t* p, unsigned n ) { SET_BE16( p, n ); }
|
||||
inline void set_be( BOOST::uint32_t* p, blargg_ulong n ) { SET_BE32( p, n ); }
|
||||
inline unsigned get_le( BOOST::uint16_t* p ) { return GET_LE16( p ); }
|
||||
inline blargg_ulong get_le( BOOST::uint32_t* p ) { return GET_LE32( p ); }
|
||||
inline unsigned get_be( BOOST::uint16_t* p ) { return GET_BE16( p ); }
|
||||
inline blargg_ulong get_be( BOOST::uint32_t* p ) { return GET_BE32( p ); }
|
||||
|
||||
#endif
|
||||
100
src/engine/platform/sound/snes/blargg_source.h
Normal file
100
src/engine/platform/sound/snes/blargg_source.h
Normal file
|
|
@ -0,0 +1,100 @@
|
|||
/* Included at the beginning of library source files, after all other #include lines.
|
||||
Sets up helpful macros and services used in my source code. They don't need
|
||||
module an annoying module prefix on their names since they are defined after
|
||||
all other #include lines. */
|
||||
|
||||
// snes_spc 0.9.0
|
||||
#ifndef BLARGG_SOURCE_H
|
||||
#define BLARGG_SOURCE_H
|
||||
|
||||
// If debugging is enabled, abort program if expr is false. Meant for checking
|
||||
// internal state and consistency. A failed assertion indicates a bug in the module.
|
||||
// void assert( bool expr );
|
||||
#include <assert.h>
|
||||
|
||||
// If debugging is enabled and expr is false, abort program. Meant for checking
|
||||
// caller-supplied parameters and operations that are outside the control of the
|
||||
// module. A failed requirement indicates a bug outside the module.
|
||||
// void require( bool expr );
|
||||
#undef require
|
||||
#define require( expr ) assert( expr )
|
||||
|
||||
// Like printf() except output goes to debug log file. Might be defined to do
|
||||
// nothing (not even evaluate its arguments).
|
||||
// void dprintf( const char* format, ... );
|
||||
static inline void blargg_dprintf_( const char*, ... ) { }
|
||||
#undef dprintf
|
||||
#define dprintf (1) ? (void) 0 : blargg_dprintf_
|
||||
|
||||
// If enabled, evaluate expr and if false, make debug log entry with source file
|
||||
// and line. Meant for finding situations that should be examined further, but that
|
||||
// don't indicate a problem. In all cases, execution continues normally.
|
||||
#undef check
|
||||
#define check( expr ) ((void) 0)
|
||||
|
||||
// If expr yields error string, return it from current function, otherwise continue.
|
||||
#undef RETURN_ERR
|
||||
#define RETURN_ERR( expr ) do { \
|
||||
blargg_err_t blargg_return_err_ = (expr); \
|
||||
if ( blargg_return_err_ ) return blargg_return_err_; \
|
||||
} while ( 0 )
|
||||
|
||||
// If ptr is 0, return out of memory error string.
|
||||
#undef CHECK_ALLOC
|
||||
#define CHECK_ALLOC( ptr ) do { if ( (ptr) == 0 ) return "Out of memory"; } while ( 0 )
|
||||
|
||||
// Avoid any macros which evaluate their arguments multiple times
|
||||
#undef min
|
||||
#undef max
|
||||
|
||||
#define DEF_MIN_MAX( type ) \
|
||||
static inline type min( type x, type y ) { if ( x < y ) return x; return y; }\
|
||||
static inline type max( type x, type y ) { if ( y < x ) return x; return y; }
|
||||
|
||||
DEF_MIN_MAX( int )
|
||||
DEF_MIN_MAX( unsigned )
|
||||
DEF_MIN_MAX( long )
|
||||
DEF_MIN_MAX( unsigned long )
|
||||
DEF_MIN_MAX( float )
|
||||
DEF_MIN_MAX( double )
|
||||
|
||||
#undef DEF_MIN_MAX
|
||||
|
||||
/*
|
||||
// using const references generates crappy code, and I am currenly only using these
|
||||
// for built-in types, so they take arguments by value
|
||||
|
||||
// TODO: remove
|
||||
inline int min( int x, int y )
|
||||
template<class T>
|
||||
inline T min( T x, T y )
|
||||
{
|
||||
if ( x < y )
|
||||
return x;
|
||||
return y;
|
||||
}
|
||||
|
||||
template<class T>
|
||||
inline T max( T x, T y )
|
||||
{
|
||||
if ( x < y )
|
||||
return y;
|
||||
return x;
|
||||
}
|
||||
*/
|
||||
|
||||
// TODO: good idea? bad idea?
|
||||
#undef byte
|
||||
#define byte byte_
|
||||
typedef unsigned char byte;
|
||||
|
||||
// deprecated
|
||||
#define BLARGG_CHECK_ALLOC CHECK_ALLOC
|
||||
#define BLARGG_RETURN_ERR RETURN_ERR
|
||||
|
||||
// BLARGG_SOURCE_BEGIN: If defined, #included, allowing redefition of dprintf and check
|
||||
#ifdef BLARGG_SOURCE_BEGIN
|
||||
#include BLARGG_SOURCE_BEGIN
|
||||
#endif
|
||||
|
||||
#endif
|
||||
Loading…
Add table
Add a link
Reference in a new issue