Implemented new Syntrax/JayTrax Module decoder.

CQTexperiment
Chris Moeller 2016-03-13 22:51:17 -07:00
parent bd93d120a0
commit 3c75c03b70
17 changed files with 4856 additions and 0 deletions

View File

@ -191,6 +191,7 @@
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83E6B7651816178200D4576D /* Sparkle.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 83E6B759181612FD00D4576D /* Sparkle.framework */; };
83EEAB241C965C56002761C5 /* Syntrax.bundle in CopyFiles */ = {isa = PBXBuildFile; fileRef = 83EEAAFA1C9651D8002761C5 /* Syntrax.bundle */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
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@ -614,6 +615,20 @@
remoteGlobalIDString = 8DC2EF4F0486A6940098B216;
remoteInfo = Sparkle;
};
83EEAAF91C9651D8002761C5 /* PBXContainerItemProxy */ = {
isa = PBXContainerItemProxy;
containerPortal = 83EEAAF51C9651D8002761C5 /* Syntrax.xcodeproj */;
proxyType = 2;
remoteGlobalIDString = 832FF2F81C96508E0076D662;
remoteInfo = Syntrax;
};
83EEAB251C965C61002761C5 /* PBXContainerItemProxy */ = {
isa = PBXContainerItemProxy;
containerPortal = 83EEAAF51C9651D8002761C5 /* Syntrax.xcodeproj */;
proxyType = 1;
remoteGlobalIDString = 832FF2F71C96508E0076D662;
remoteInfo = Syntrax;
};
83F9D7F51A884B46007ABEC2 /* PBXContainerItemProxy */ = {
isa = PBXContainerItemProxy;
containerPortal = 83F9D7F11A884B44007ABEC2 /* SilenceDecoder.xcodeproj */;
@ -681,6 +696,7 @@
dstPath = "";
dstSubfolderSpec = 13;
files = (
83EEAB241C965C56002761C5 /* Syntrax.bundle in CopyFiles */,
83F9D8071A884C54007ABEC2 /* SilenceDecoder.bundle in CopyFiles */,
836F5BF91A357A01002730CC /* sidplay.bundle in CopyFiles */,
839BD010196521E600947767 /* BASSMODS.bundle in CopyFiles */,
@ -985,6 +1001,7 @@
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83EEAAF51C9651D8002761C5 /* Syntrax.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = Syntrax.xcodeproj; path = Plugins/Syntrax/Syntrax.xcodeproj; sourceTree = "<group>"; };
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@ -1270,6 +1287,7 @@
17B619FF0B909ED400BC003F /* PlugIns */ = {
isa = PBXGroup;
children = (
83EEAAF51C9651D8002761C5 /* Syntrax.xcodeproj */,
835CBC7118DA79F80087A03E /* modplay.xcodeproj */,
8360EF0017F92B23005208A4 /* HighlyComplete.xcodeproj */,
B09E94300D747F7B0064F138 /* FFMPEG.xcodeproj */,
@ -1730,6 +1748,14 @@
name = Products;
sourceTree = "<group>";
};
83EEAAF61C9651D8002761C5 /* Products */ = {
isa = PBXGroup;
children = (
83EEAAFA1C9651D8002761C5 /* Syntrax.bundle */,
);
name = Products;
sourceTree = "<group>";
};
83F9D7F21A884B44007ABEC2 /* Products */ = {
isa = PBXGroup;
children = (
@ -1870,6 +1896,7 @@
buildRules = (
);
dependencies = (
83EEAB261C965C61002761C5 /* PBXTargetDependency */,
83F9D8061A884C33007ABEC2 /* PBXTargetDependency */,
836F5BEE1A3579F5002730CC /* PBXTargetDependency */,
839BD012196521FD00947767 /* PBXTargetDependency */,
@ -2039,6 +2066,10 @@
ProductGroup = 83E6B751181612FD00D4576D /* Products */;
ProjectRef = 83E6B750181612FD00D4576D /* Sparkle.xcodeproj */;
},
{
ProductGroup = 83EEAAF61C9651D8002761C5 /* Products */;
ProjectRef = 83EEAAF51C9651D8002761C5 /* Syntrax.xcodeproj */;
},
{
ProductGroup = 17C808B10C3BD1C5005707C4 /* Products */;
ProjectRef = 17C808B00C3BD1C5005707C4 /* TagLib.xcodeproj */;
@ -2281,6 +2312,13 @@
remoteRef = 83E6B760181612FD00D4576D /* PBXContainerItemProxy */;
sourceTree = BUILT_PRODUCTS_DIR;
};
83EEAAFA1C9651D8002761C5 /* Syntrax.bundle */ = {
isa = PBXReferenceProxy;
fileType = wrapper.cfbundle;
path = Syntrax.bundle;
remoteRef = 83EEAAF91C9651D8002761C5 /* PBXContainerItemProxy */;
sourceTree = BUILT_PRODUCTS_DIR;
};
83F9D7F61A884B46007ABEC2 /* SilenceDecoder.bundle */ = {
isa = PBXReferenceProxy;
fileType = wrapper.cfbundle;
@ -2641,6 +2679,11 @@
name = Sparkle;
targetProxy = 83E6B7631816138800D4576D /* PBXContainerItemProxy */;
};
83EEAB261C965C61002761C5 /* PBXTargetDependency */ = {
isa = PBXTargetDependency;
name = Syntrax;
targetProxy = 83EEAB251C965C61002761C5 /* PBXContainerItemProxy */;
};
83F9D8061A884C33007ABEC2 /* PBXTargetDependency */ = {
isa = PBXTargetDependency;
name = SilenceDecoder;

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@ -0,0 +1,28 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>CFBundleDevelopmentRegion</key>
<string>en</string>
<key>CFBundleExecutable</key>
<string>$(EXECUTABLE_NAME)</string>
<key>CFBundleIdentifier</key>
<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>$(PRODUCT_NAME)</string>
<key>CFBundlePackageType</key>
<string>FMWK</string>
<key>CFBundleShortVersionString</key>
<string>1.0</string>
<key>CFBundleSignature</key>
<string>????</string>
<key>CFBundleVersion</key>
<string>$(CURRENT_PROJECT_VERSION)</string>
<key>NSHumanReadableCopyright</key>
<string>Copyright © 2016 Christopher Snowhill. All rights reserved.</string>
<key>NSPrincipalClass</key>
<string></string>
</dict>
</plist>

View File

@ -0,0 +1,400 @@
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "file.h"
size_t filesize;
Song* File_loadSong(const char *path)
{
Song *synSong;
FILE *f;
uint8_t *buffer;
size_t size;
if (!(f = fopen(path, "rb"))) return NULL;
fseek(f, 0, SEEK_END);
size = ftell(f);
fseek(f, 0, SEEK_SET);
if (!(buffer = (uint8_t *) malloc(size))) {
fclose(f);
return NULL;
}
if (fread(buffer, 1, size, f) != size) {
free(buffer);
fclose(f);
return NULL;
}
fclose(f);
synSong = File_loadSongMem(buffer, size);
free(buffer);
return synSong;
}
uint16_t get_le16(const void *p)
{
return (((const uint8_t*)p)[0]) +
(((const uint8_t*)p)[1]) * 0x100;
}
uint32_t get_le32(const void *p)
{
return (((const uint8_t*)p)[0]) +
(((const uint8_t*)p)[1]) * 0x100 +
(((const uint8_t*)p)[2]) * 0x10000 +
(((const uint8_t*)p)[3]) * 0x1000000;
}
static long File_readHeader(SongHeader *h, const uint8_t *buffer, size_t size)
{
if (size < 52) return -1;
h->version = get_le16(buffer);
h->UNK00 = get_le16(buffer + 2);
h->patNum = get_le32(buffer + 4);
h->subsongNum = get_le32(buffer + 8);
h->instrNum = get_le32(buffer + 12);
h->UNK01 = get_le32(buffer + 16);
h->UNK02 = get_le16(buffer + 20);
h->UNK03 = get_le16(buffer + 22);
h->UNK04 = get_le16(buffer + 24);
h->UNK05 = get_le16(buffer + 26);
h->UNK06 = get_le16(buffer + 28);
h->UNK07 = get_le16(buffer + 30);
h->UNK08 = get_le16(buffer + 32);
h->UNK09 = get_le16(buffer + 34);
h->UNK0A = get_le16(buffer + 36);
h->UNK0B = get_le16(buffer + 38);
h->UNK0C = get_le16(buffer + 40);
h->UNK0D = get_le16(buffer + 42);
h->UNK0E = get_le16(buffer + 44);
h->UNK0F = get_le16(buffer + 46);
h->UNK10 = get_le16(buffer + 48);
h->UNK11 = get_le16(buffer + 50);
return 52;
}
static long File_readSubSong(Subsong *subSong, const uint8_t *buffer, size_t size)
{
int i, j;
if (size < 16564) return -1;
for (i = 0; i < 16; i++)
subSong->UNK00[i] = get_le32(buffer + i * 4);
for (i = 0; i < SE_MAXCHANS; i++)
subSong->mutedChans[i] = buffer[64 + i];
subSong->tempo = get_le32(buffer + 80);
subSong->groove = get_le32(buffer + 84);
subSong->startPosCoarse = get_le32(buffer + 88);
subSong->startPosFine = get_le32(buffer + 92);
subSong->endPosCoarse = get_le32(buffer + 96);
subSong->endPosFine = get_le32(buffer + 100);
subSong->loopPosCoarse = get_le32(buffer + 104);
subSong->loopPosFine = get_le32(buffer + 108);
subSong->isLooping = get_le16(buffer + 112);
memcpy(subSong->m_Name, buffer + 114, 32);
subSong->m_Name[32] = '\0';
subSong->channelNumber = get_le16(buffer + 146);
subSong->delayTime = get_le16(buffer + 148);
for (i = 0; i < SE_MAXCHANS; i++)
subSong->chanDelayAmt[i] = buffer[150 + i];
subSong->amplification = get_le16(buffer + 166);
subSong->UNK01 = get_le16(buffer + 168);
subSong->UNK02 = get_le16(buffer + 170);
subSong->UNK03 = get_le16(buffer + 172);
subSong->UNK04 = get_le16(buffer + 174);
subSong->UNK05 = get_le16(buffer + 176);
subSong->UNK06 = get_le16(buffer + 178);
for (i = 0; i < SE_MAXCHANS; i++) {
for (j = 0; j < 0x100; j++) {
subSong->orders[i][j].patIndex = get_le16(buffer + 180 + i * 1024 + j * 4);
subSong->orders[i][j].patLen = get_le16(buffer + 180 + i * 1024 + j * 4 + 2);
}
}
return 16564;
}
long File_readRow(Row *r, const uint8_t *buffer, size_t size)
{
if (size < 5) return -1;
r->note = buffer[0];
r->dest = buffer[1];
r->instr = buffer[2];
r->spd = buffer[3];
r->command = buffer[4];
return 5;
}
static long File_readInstrumentEffect(InstrumentEffect *effect, const uint8_t *buffer, size_t size)
{
if (size < 40) return -1;
effect->destWave = get_le32(buffer);
effect->srcWave1 = get_le32(buffer + 4);
effect->srcWave2 = get_le32(buffer + 8);
effect->oscWave = get_le32(buffer + 12);
effect->variable1 = get_le32(buffer + 16);
effect->variable2 = get_le32(buffer + 20);
effect->fxSpeed = get_le32(buffer + 24);
effect->oscSpeed = get_le32(buffer + 28);
effect->effectType = get_le32(buffer + 32);
effect->oscSelect = buffer[36];
effect->resetEffect = buffer[37];
effect->UNK00 = get_le16(buffer + 38);
return 40;
}
static long File_readInstrument(Instrument *instr, const uint8_t *buffer, size_t size)
{
int i, j;
long sizeRead;
if (size < 8712) return -1;
instr->version = get_le16(buffer);
memcpy(instr->name, buffer + 2, 32);
instr->name[32] = '\0';
instr->waveform = get_le16(buffer + 34);
instr->wavelength = get_le16(buffer + 36);
instr->masterVolume = get_le16(buffer + 38);
instr->amWave = get_le16(buffer + 40);
instr->amSpeed = get_le16(buffer + 42);
instr->amLoopPoint = get_le16(buffer + 44);
instr->finetune = get_le16(buffer + 46);
instr->fmWave = get_le16(buffer + 48);
instr->fmSpeed = get_le16(buffer + 50);
instr->fmLoopPoint = get_le16(buffer + 52);
instr->fmDelay = get_le16(buffer + 54);
instr->arpIndex = get_le16(buffer + 56);
for (i = 0; i < SE_MAXCHANS; i++)
instr->m_ResetWave[i] = buffer[58 + i];
instr->panWave = get_le16(buffer + 74);
instr->panSpeed = get_le16(buffer + 76);
instr->panLoopPoint = get_le16(buffer + 78);
instr->UNK00 = get_le16(buffer + 80);
instr->UNK01 = get_le16(buffer + 82);
instr->UNK02 = get_le16(buffer + 84);
instr->UNK03 = get_le16(buffer + 86);
instr->UNK04 = get_le16(buffer + 88);
instr->UNK05 = get_le16(buffer + 90);
buffer += 92; size -= 92;
for (i = 0; i < 4; i++) {
sizeRead = File_readInstrumentEffect(&instr->effects[i], buffer, size);
if (sizeRead < 0) return -1;
buffer += sizeRead; size -= sizeRead;
}
memcpy(instr->smpFullImportPath, buffer, 192);
instr->smpFullImportPath[192] = '\0';
buffer += 192; size -= 192;
instr->UNK06 = get_le32(buffer);
instr->UNK07 = get_le32(buffer + 4);
instr->UNK08 = get_le32(buffer + 8);
instr->UNK09 = get_le32(buffer + 12);
instr->UNK0A = get_le32(buffer + 16);
instr->UNK0B = get_le32(buffer + 20);
instr->UNK0C = get_le32(buffer + 24);
instr->UNK0D = get_le32(buffer + 28);
instr->UNK0E = get_le32(buffer + 32);
instr->UNK0F = get_le32(buffer + 36);
instr->UNK10 = get_le32(buffer + 40);
instr->UNK11 = get_le32(buffer + 44);
instr->UNK12 = get_le16(buffer + 48);
buffer += 50; size -= 50;
instr->shareSmpDataFromInstr = get_le16(buffer);
instr->hasLoop = get_le16(buffer + 2);
instr->hasBidiLoop = get_le16(buffer + 4);
buffer += 6; size -= 6;
instr->smpStartPoint = get_le32(buffer);
instr->smpLoopPoint = get_le32(buffer + 4);
instr->smpEndPoint = get_le32(buffer + 8);
instr->hasSample = get_le32(buffer + 12);
instr->smpLength = get_le32(buffer + 16);
buffer += 20; size -= 20;
for (i = 0; i < SE_MAXCHANS; i++) {
for (j = 0; j < 0x100; j++) {
instr->synthBuffers[i][j] = get_le16(buffer + i * 512 + j * 2);
}
}
return 8712;
}
Song* File_loadSongMem(const uint8_t *buffer, size_t size)
{
int i, j, k;
int songVer;
Subsong *subs;
Order *orderCol;
Order *order;
Row *row;
Instrument *instr;
Song *synSong;
long sizeRead;
synSong = (Song *) calloc(1, sizeof(Song));
if (!synSong) return NULL;
/*
//unused vars
int8_t _local5[] = [0, 0, 0, 0, 0, 0];
bool _local2 = false;
int _local7 = 0;
bool _local8 = true;
*/
sizeRead = File_readHeader(&synSong->h, buffer, size);
if (sizeRead < 0) goto FAIL;
buffer += sizeRead; size -= sizeRead;
songVer = synSong->h.version;
if ((songVer >= 3456) && (songVer <= 3457)){
if (synSong->h.subsongNum > 0){
synSong->subsongs = (Subsong *) malloc(synSong->h.subsongNum *sizeof(Subsong));
if (!synSong->subsongs) goto FAIL;
for (i = 0; i < synSong->h.subsongNum; i++) {
sizeRead = File_readSubSong(synSong->subsongs + i, buffer, size);
if (sizeRead < 0) goto FAIL;
buffer += sizeRead; size -= sizeRead;
}
synSong->rows = (Row *) malloc(synSong->h.patNum * 64 *sizeof(Row));
if (!synSong->rows) goto FAIL;
for (i = 0, j = synSong->h.patNum * 64; i < j; i++) {
sizeRead = File_readRow(synSong->rows + i, buffer, size);
if (sizeRead < 0) goto FAIL;
buffer += sizeRead; size -= sizeRead;
}
synSong->patNameSizes = (uint32_t *) malloc(synSong->h.patNum * sizeof(uint32_t));
if (!synSong->patNameSizes) goto FAIL;
synSong->patternNames = calloc(sizeof(char *), synSong->h.patNum);
if (!synSong->patternNames) goto FAIL;
for (i = 0; i < synSong->h.patNum; i++) {
if (size < 4) goto FAIL;
j = synSong->patNameSizes[i] = get_le32(buffer);
buffer += 4; size -= 4;
if (size < j) goto FAIL;
synSong->patternNames[i] = malloc(j + sizeof(char));
if (!synSong->patternNames[i]) goto FAIL;
memcpy(synSong->patternNames[i], buffer, j);
synSong->patternNames[i][j] = '\0';
buffer += j; size -= j;
}
synSong->instruments = malloc(synSong->h.instrNum * sizeof(Instrument));
if (!synSong->instruments) goto FAIL;
synSong->samples = calloc(sizeof(int16_t *), synSong->h.instrNum);
if (!synSong->samples) goto FAIL;
for (i = 0; i < synSong->h.instrNum; i++) {
instr = &synSong->instruments[i];
sizeRead = File_readInstrument(instr, buffer, size);
if (sizeRead < 0) goto FAIL;
buffer += sizeRead; size -= sizeRead;
if (songVer == 3456){
instr->shareSmpDataFromInstr = 0;
instr->hasLoop = 0;
instr->hasBidiLoop = 0;
instr->smpStartPoint = 0;
instr->smpLoopPoint = 0;
instr->smpEndPoint = 0;
if (instr->hasSample){
instr->smpStartPoint = 0;
instr->smpEndPoint = (instr->smpLength / 2);
instr->smpLoopPoint = 0;
}
}
if (instr->hasSample){
//instr->smpLength is in bytes, I think
if (size < instr->smpLength) goto FAIL;
synSong->samples[i] = malloc(instr->smpLength);
if (!synSong->samples[i]) goto FAIL;
memcpy(synSong->samples[i], buffer, instr->smpLength);
buffer += instr->smpLength; size -= instr->smpLength;
} else {
synSong->samples[i] = NULL;
}
}
memcpy(synSong->arpTable, buffer, 0x100);
buffer += 0x100; size -= 0x100;
} else goto FAIL;
} else goto FAIL;
return synSong;
FAIL:
File_freeSong(synSong);
return NULL;
}
void File_freeSong(Song *synSong)
{
int i;
if (synSong) {
if (synSong->subsongs) free(synSong->subsongs);
if (synSong->rows) free(synSong->rows);
if (synSong->patNameSizes) free(synSong->patNameSizes);
if (synSong->patternNames) {
for (i = 0; i < synSong->h.patNum; i++) {
if (synSong->patternNames[i]) free(synSong->patternNames[i]);
}
free(synSong->patternNames);
}
if (synSong->instruments) free(synSong->instruments);
if (synSong->samples) {
for (i = 0; i < synSong->h.instrNum; i++) {
if (synSong->samples[i]) free(synSong->samples[i]);
}
free(synSong->samples);
}
free(synSong);
}
}

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@ -0,0 +1,19 @@
#ifndef FILE_H
#define FILE_H
#include "syntrax.h"
#ifdef __cplusplus
extern "C" {
#endif
Song* File_loadSong(const char *path);
Song* File_loadSongMem(const uint8_t *buffer, size_t size);
void File_freeSong(Song *synSong);
#ifdef __cplusplus
}
#endif
#endif

View File

@ -0,0 +1,379 @@
#include "resampler.h"
#include <math.h>
#include <stdlib.h>
#include <string.h>
/* Copyright (C) 2004-2008 Shay Green.
Copyright (C) 2015 Christopher Snowhill. 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 */
#undef PI
#define PI 3.1415926535897932384626433832795029
enum { imp_scale = 0x7FFF };
typedef int16_t imp_t;
typedef int32_t imp_off_t; /* for max_res of 512 and impulse width of 32, end offsets must be 32 bits */
#if RESAMPLER_BITS == 16
typedef int32_t intermediate_t;
#elif RESAMPLER_BITS == 32
typedef int64_t intermediate_t;
#endif
static void gen_sinc( double rolloff, int width, double offset, double spacing, double scale,
int count, imp_t* out )
{
double angle;
double const maxh = 256;
double const step = PI / maxh * spacing;
double const to_w = maxh * 2 / width;
double const pow_a_n = pow( rolloff, maxh );
scale /= maxh * 2;
angle = (count / 2 - 1 + offset) * -step;
while ( count-- )
{
double w;
*out++ = 0;
w = angle * to_w;
if ( fabs( w ) < PI )
{
double rolloff_cos_a = rolloff * cos( angle );
double num = 1 - rolloff_cos_a -
pow_a_n * cos( maxh * angle ) +
pow_a_n * rolloff * cos( (maxh - 1) * angle );
double den = 1 - rolloff_cos_a - rolloff_cos_a + rolloff * rolloff;
double sinc = scale * num / den - scale;
out [-1] = (imp_t) (cos( w ) * sinc + sinc);
}
angle += step;
}
}
enum { width = 32 };
enum { stereo = 2 };
enum { max_res = 512 };
enum { min_width = (width < 4 ? 4 : width) };
enum { adj_width = min_width / 4 * 4 + 2 };
enum { write_offset = adj_width * stereo };
enum { buffer_size = 128 };
typedef struct _resampler
{
int width_;
int rate_;
int inptr;
int infilled;
int outptr;
int outfilled;
int latency;
imp_t const* imp;
imp_t impulses [max_res * (adj_width + 2 * (sizeof(imp_off_t) / sizeof(imp_t)))];
sample_t buffer_in[buffer_size * stereo * 2];
sample_t buffer_out[buffer_size * stereo];
} resampler;
void * resampler_create()
{
resampler *r = (resampler *) malloc(sizeof(resampler));
if (r) resampler_clear(r);
return r;
}
void * resampler_dup(const void *_r)
{
void *_t = (resampler *) malloc(sizeof(resampler));
if (_t) resampler_dup_inplace(_t, _r);
return _t;
}
void resampler_dup_inplace(void *_t, const void *_r)
{
const resampler *r = (const resampler *)_r;
resampler *t = (resampler *)_t;
if (r && t)
{
memcpy(t, r, sizeof(resampler));
t->imp = t->impulses + (r->imp - r->impulses);
}
else if (t)
{
resampler_clear(t);
}
}
void resampler_destroy(void *r)
{
free(r);
}
void resampler_clear(void *_r)
{
resampler * r = (resampler *)_r;
r->width_ = adj_width;
r->inptr = 0;
r->infilled = 0;
r->outptr = 0;
r->outfilled = 0;
r->latency = 0;
r->imp = r->impulses;
resampler_set_rate(r, 1.0);
}
void resampler_set_rate( void *_r, double new_factor )
{
int step; //const
double filter; //const
double fraction, pos;
int n;
resampler *rs = (resampler *)_r;
imp_t* out;
double const rolloff = 0.999;
double const gain = 1.0;
/* determine number of sub-phases that yield lowest error */
double ratio_ = 0.0;
int res = -1;
{
double least_error = 2;
double pos = 0;
int r;
for ( r = 1; r <= max_res; r++ )
{
double nearest, error;
pos += new_factor;
nearest = floor( pos + 0.5 );
error = fabs( pos - nearest );
if ( error < least_error )
{
res = r;
ratio_ = nearest / res;
least_error = error;
}
}
}
rs->rate_ = ratio_;
/* how much of input is used for each output sample */
step = stereo * (int) floor( ratio_ );
fraction = fmod( ratio_, 1.0 );
filter = (ratio_ < 1.0) ? 1.0 : 1.0 / ratio_;
pos = 0.0;
/*int input_per_cycle = 0;*/
out = rs->impulses;
for ( n = res; --n >= 0; )
{
int cur_step;
gen_sinc( rolloff, (int) (rs->width_ * filter + 1) & ~1, pos, filter,
(double)(imp_scale * gain * filter), (int) rs->width_, out );
out += rs->width_;
cur_step = step;
pos += fraction;
if ( pos >= 0.9999999 )
{
pos -= 1.0;
cur_step += stereo;
}
((imp_off_t*)out)[0] = (cur_step - rs->width_ * 2 + 4) * sizeof (sample_t);
((imp_off_t*)out)[1] = 2 * sizeof (imp_t) + 2 * sizeof (imp_off_t);
out += 2 * (sizeof(imp_off_t) / sizeof(imp_t));
/*input_per_cycle += cur_step;*/
}
/* last offset moves back to beginning of impulses*/
((imp_off_t*)out) [-1] -= (char*) out - (char*) rs->impulses;
rs->imp = rs->impulses;
}
int resampler_get_free(void *_r)
{
resampler *r = (resampler *)_r;
return buffer_size * stereo - r->infilled;
}
int resampler_get_min_fill(void *_r)
{
resampler *r = (resampler *)_r;
const int min_needed = write_offset + stereo;
const int latency = r->latency ? 0 : adj_width;
int min_free = min_needed - r->infilled - latency;
return min_free < 0 ? 0 : min_free;
}
void resampler_write_pair(void *_r, sample_t ls, sample_t rs)
{
resampler *r = (resampler *)_r;
if (!r->latency)
{
int i;
for ( i = 0; i < adj_width / 2; ++i)
{
r->buffer_in[r->inptr + 0] = 0;
r->buffer_in[r->inptr + 1] = 0;
r->buffer_in[buffer_size * stereo + r->inptr + 0] = 0;
r->buffer_in[buffer_size * stereo + r->inptr + 1] = 0;
r->inptr = (r->inptr + stereo) % (buffer_size * stereo);
r->infilled += stereo;
}
r->latency = 1;
}
if (r->infilled < buffer_size * stereo)
{
r->buffer_in[r->inptr + 0] = ls;
r->buffer_in[r->inptr + 1] = rs;
r->buffer_in[buffer_size * stereo + r->inptr + 0] = ls;
r->buffer_in[buffer_size * stereo + r->inptr + 1] = rs;
r->inptr = (r->inptr + stereo) % (buffer_size * stereo);
r->infilled += stereo;
}
}
#if defined(_MSC_VER) || defined(__GNUC__)
#define restrict __restrict
#endif
static const sample_t * resampler_inner_loop( resampler *r, sample_t** out_,
sample_t const* out_end, sample_t const in [], int in_size )
{
in_size -= write_offset;
if ( in_size > 0 )
{
sample_t* restrict out = *out_;
sample_t const* const in_end = in + in_size;
imp_t const* imp = r->imp;
do
{
int n;
/* accumulate in extended precision*/
int pt = imp [0];
intermediate_t l = (intermediate_t)pt * (intermediate_t)(in [0]);
intermediate_t r = (intermediate_t)pt * (intermediate_t)(in [1]);
if ( out >= out_end )
break;
for ( n = (adj_width - 2) / 2; n; --n )
{
pt = imp [1];
l += (intermediate_t)pt * (intermediate_t)(in [2]);
r += (intermediate_t)pt * (intermediate_t)(in [3]);
/* pre-increment more efficient on some RISC processors*/
imp += 2;
pt = imp [0];
r += (intermediate_t)pt * (intermediate_t)(in [5]);
in += 4;
l += (intermediate_t)pt * (intermediate_t)(in [0]);
}
pt = imp [1];
l += (intermediate_t)pt * (intermediate_t)(in [2]);
r += (intermediate_t)pt * (intermediate_t)(in [3]);
/* these two "samples" after the end of the impulse give the
* proper offsets to the next input sample and next impulse */
in = (sample_t const*) ((char const*) in + ((imp_off_t*)(&imp [2]))[0]); /* some negative value */
imp = (imp_t const*) ((char const*) imp + ((imp_off_t*)(&imp [2]))[1]); /* small positive or large negative */
out [0] = (sample_t) (l >> 15);
out [1] = (sample_t) (r >> 15);
out += 2;
}
while ( in < in_end );
r->imp = imp;
*out_ = out;
}
return in;
}
#undef restrict
static int resampler_wrapper( resampler *r, sample_t out [], int* out_size,
sample_t const in [], int in_size )
{
sample_t* out_ = out;
int result = resampler_inner_loop( r, &out_, out + *out_size, in, in_size ) - in;
*out_size = out_ - out;
return result;
}
static void resampler_fill( resampler *r )
{
while (!r->outfilled && r->infilled)
{
int inread;
int writepos = ( r->outptr + r->outfilled ) % (buffer_size * stereo);
int writesize = (buffer_size * stereo) - writepos;
if ( writesize > ( buffer_size * stereo - r->outfilled ) )
writesize = buffer_size * stereo - r->outfilled;
inread = resampler_wrapper(r, &r->buffer_out[writepos], &writesize, &r->buffer_in[buffer_size * stereo + r->inptr - r->infilled], r->infilled);
r->infilled -= inread;
r->outfilled += writesize;
if (!inread)
break;
}
}
int resampler_get_avail(void *_r)
{
resampler *r = (resampler *)_r;
if (r->outfilled < stereo && r->infilled >= r->width_)
resampler_fill( r );
return r->outfilled;
}
static void resampler_read_pair_internal( resampler *r, sample_t *ls, sample_t *rs, int advance )
{
if (r->outfilled < stereo)
resampler_fill( r );
if (r->outfilled < stereo)
{
*ls = 0;
*rs = 0;
return;
}
*ls = r->buffer_out[r->outptr + 0];
*rs = r->buffer_out[r->outptr + 1];
if (advance)
{
r->outptr = (r->outptr + 2) % (buffer_size * stereo);
r->outfilled -= stereo;
}
}
void resampler_read_pair( void *_r, sample_t *ls, sample_t *rs )
{
resampler *r = (resampler *)_r;
resampler_read_pair_internal(r, ls, rs, 1);
}
void resampler_peek_pair( void *_r, sample_t *ls, sample_t *rs )
{
resampler *r = (resampler *)_r;
resampler_read_pair_internal(r, ls, rs, 0);
}

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@ -0,0 +1,75 @@
#ifndef _RESAMPLER_H_
#define _RESAMPLER_H_
/* Copyright (C) 2004-2008 Shay Green.
Copyright (C) 2015 Christopher Snowhill. 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 */
#define RESAMPLER_BITS 32
#define RESAMPLER_DECORATE syntrax
#ifdef RESAMPLER_DECORATE
#undef PASTE
#undef EVALUATE
#define PASTE(a,b) a ## b
#define EVALUATE(a,b) PASTE(a,b)
#define resampler_create EVALUATE(RESAMPLER_DECORATE,_resampler_create)
#define resampler_dup EVALUATE(RESAMPLER_DECORATE,_resampler_dup)
#define resampler_dup_inplace EVALUATE(RESAMPLER_DECORATE,_resampler_dup_inplace)
#define resampler_destroy EVALUATE(RESAMPLER_DECORATE,_resampler_destroy)
#define resampler_clear EVALUATE(RESAMPLER_DECORATE,_resampler_clear)
#define resampler_set_rate EVALUATE(RESAMPLER_DECORATE,_resampler_set_rate)
#define resampler_get_free EVALUATE(RESAMPLER_DECORATE,_resampler_get_free)
#define resampler_get_min_fill EVALUATE(RESAMPLER_DECORATE,_resampler_get_min_fill)
#define resampler_write_pair EVALUATE(RESAMPLER_DECORATE,_resampler_write_pair)
#define resampler_get_avail EVALUATE(RESAMPLER_DECORATE,_resampler_get_avail)
#define resampler_read_pair EVALUATE(RESAMPLER_DECORATE,_resampler_read_pair)
#define resampler_peek_pair EVALUATE(RESAMPLER_DECORATE,_resampler_peek_pair)
#endif
#include <stdint.h>
#if RESAMPLER_BITS == 16
typedef int16_t sample_t;
#elif RESAMPLER_BITS == 32
typedef int32_t sample_t;
#else
#error Choose a bit depth!
#endif
#ifdef __cplusplus
extern "C" {
#endif
void * resampler_create();
void * resampler_dup(const void *);
void resampler_dup_inplace(void *, const void *);
void resampler_destroy(void *);
void resampler_clear(void *);
void resampler_set_rate( void *, double new_factor );
int resampler_get_free(void *);
int resampler_get_min_fill(void *);
void resampler_write_pair(void *, sample_t ls, sample_t rs);
int resampler_get_avail(void *);
void resampler_read_pair( void *, sample_t *ls, sample_t *rs );
void resampler_peek_pair( void *, sample_t *ls, sample_t *rs );
#ifdef __cplusplus
}
#endif
#endif

File diff suppressed because it is too large Load Diff

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#ifndef SYNTRAX_H
#define SYNTRAX_H
#include <stdint.h>
//----------------------------typedefs-------------------------
#ifndef NULL
#define NULL 0
#endif
typedef unsigned uint;
#ifndef __cplusplus
typedef enum { false, true } bool;
#endif
//----------------------------defines--------------------------
#define SE_NROFEFFECTS 18
#define SE_MAXCHANS 16
#define SE_NROFFINETUNESTEPS 16
#define SE_OVERLAP 100
#define BUFFERLENGTH 4096
#define CHANNELS 2
#define BITRATE 16
#define RESAMPLE_POINTS 4
//some constants for controlling stuff
//I've no idea what the abreviations stand for
#define SE_PM_SONG 0
#define SE_PM_PATTERN 1
//---------------------------structures------------------------
//player structs
//don't pack these
typedef struct
{
int wavelength;
int gainDelay;
int delta;
int freq;
int isSample;
int isPlayingBackward;
int smpLoopEnd;
int PPMXBYLQ; //unused
int gain;
const int16_t *waveBuff;
int hasBidiLoop;
int synthPos;
int gainRight;
int smpLoopStart;
int bkpSynthPos;
int sampPos;
int gainLeft;
int hasLoop;
int smpLength;
int gainDelayRight;
int gainDelayLeft;
int hasLooped;
void * resampler[2];
int last_delta;
} Voice;
typedef struct
{
int VMBNMTNBQU;
int TIPUANVVR;
double MDTMBBIQHRQ;
double YLKJB;
double DQVLFV;
int MFATTMREMVP;
double ILHG;
double RKF;
int SPYK;
int QOMCBTRPXF;
int ABJGHAUY;
} VoiceEffect;
typedef struct
{
int JOEEPJCI;
int BNWIGU;
int isPlayingBackward;
int ELPHLDR;
int panning;
int TVORFCC;
int EYRXAB; //rather unused
int UHYDBDDI;
int XESAWSO;
int hasBidiLoop;
int fmDelay;
int volume;
int ACKCWV;
int sampPos;
int insNum;
uint8_t EQMIWERPIF;
int freq;
int HFRLJCG;
int VNVJPDIWAJQ;
int hasLoop;
int LJHG;
const int16_t *sampleBuffer;
//SQUASH effect overflows into next buffer
//SE_MAXCHANS * 0x100 + 1 must be allocated
int16_t synthBuffers[SE_MAXCHANS][0x100];
int16_t OVERFLOW_DUMMY;
int smpLoopStart;
int smpLoopEnd;
int hasLooped;
VoiceEffect effects[4];
} TuneChannel;
//data structs
typedef struct
{
uint32_t destWave;
uint32_t srcWave1;
uint32_t srcWave2;
uint32_t oscWave;
uint32_t variable1;
uint32_t variable2;
uint32_t fxSpeed;
uint32_t oscSpeed;
uint32_t effectType;
int8_t oscSelect;
int8_t resetEffect;
int16_t UNK00;
} InstrumentEffect;
typedef struct
{
int16_t version;
char name[33];
int16_t waveform;
int16_t wavelength;
int16_t masterVolume;
int16_t amWave;
int16_t amSpeed;
int16_t amLoopPoint;
int16_t finetune;
int16_t fmWave;
int16_t fmSpeed;
int16_t fmLoopPoint;
int16_t fmDelay;
int16_t arpIndex;
uint8_t m_ResetWave[SE_MAXCHANS];
int16_t panWave;
int16_t panSpeed;
int16_t panLoopPoint;
int16_t UNK00;
int16_t UNK01;
int16_t UNK02;
int16_t UNK03;
int16_t UNK04;
int16_t UNK05;
InstrumentEffect effects[4];
//why do we even need to store a full path?
//only filename appears to be used.
char smpFullImportPath[193];
uint32_t UNK06;
uint32_t UNK07;
uint32_t UNK08;
uint32_t UNK09;
uint32_t UNK0A;
uint32_t UNK0B;
uint32_t UNK0C;
uint32_t UNK0D;
uint32_t UNK0E;
uint32_t UNK0F;
uint32_t UNK10;
uint32_t UNK11;
int16_t UNK12;
int16_t shareSmpDataFromInstr; //0 is off
int16_t hasLoop;
int16_t hasBidiLoop;
uint32_t smpStartPoint;
uint32_t smpLoopPoint;
uint32_t smpEndPoint;
uint32_t hasSample;
uint32_t smpLength;
int16_t synthBuffers[SE_MAXCHANS][0x100];
} Instrument;
typedef struct
{
uint8_t note;
uint8_t dest;
uint8_t instr;
int8_t spd;
uint8_t command;
} Row;
typedef struct
{
uint16_t patIndex; //0 means empty
uint16_t patLen;
} Order;
typedef struct
{
uint32_t UNK00[16];
//UNK00 is used for something. No idea what.
//There is a sequence to the data in it.
//zeroing it out with hex editor doesn't seem to break stuff with Jaytrax
//it could as well be uninitialized memory
uint8_t mutedChans[SE_MAXCHANS];
uint32_t tempo;
uint32_t groove;
uint32_t startPosCoarse;
uint32_t startPosFine;
uint32_t endPosCoarse;
uint32_t endPosFine;
uint32_t loopPosCoarse;
uint32_t loopPosFine;
int16_t isLooping;
char m_Name[33];
int16_t channelNumber;
uint16_t delayTime;
uint8_t chanDelayAmt[SE_MAXCHANS];
int16_t amplification;
int16_t UNK01;
int16_t UNK02;
int16_t UNK03;
int16_t UNK04;
int16_t UNK05;
int16_t UNK06;
//if my eyes don't deceive me, this actually happens
//waste of space
Order orders[SE_MAXCHANS][0x100];
} Subsong;
typedef struct
{
uint16_t version;
uint16_t UNK00;
uint32_t patNum;
uint32_t subsongNum;
uint32_t instrNum;
uint32_t UNK01;
int16_t UNK02;
int16_t UNK03;
int16_t UNK04;
int16_t UNK05;
int16_t UNK06;
int16_t UNK07;
int16_t UNK08;
int16_t UNK09;
int16_t UNK0A;
int16_t UNK0B;
int16_t UNK0C;
int16_t UNK0D;
int16_t UNK0E;
int16_t UNK0F;
int16_t UNK10;
int16_t UNK11;
} SongHeader;
typedef struct
{
SongHeader h;
int8_t arpTable[0x100];
Row *rows;
//we don't know what maximum pat name length should be
//in fact this is probably a buffer overflow target in Syntrax(app crashed on too long name, from UI);
uint32_t *patNameSizes;
char **patternNames;
Instrument *instruments;
Subsong *subsongs;
int16_t **samples;
} Song;
typedef struct Player
{
int16_t *silentBuffer;
uint8_t m_LastNotes[SE_MAXCHANS];
uint32_t *freqTable;
int16_t *dynamorphTable;
const Song *synSong;
TuneChannel *tuneChannels;
Voice *voices;
int SAMPLEFREQUENCY;
int samplesPerBeat;
int otherSamplesPerBeat;
int someCounter;
int channelNumber;
int sePmSong;
int16_t *overlapBuff;
int16_t *delayBufferR;
int16_t *delayBufferL;
int bkpDelayPos;
int delayPos;
int gainPos;
int overlapPos;
int ISWLKT;
int WDTECTE;
int PQV;
int AMVM;
int DONGS;
uint8_t posCoarse;
int AMYGPFQCHSW;
int posFine;
int8_t mutedChans[SE_MAXCHANS];
int selectedSubsong;
Subsong curSubsong;
//local pointers to song structures
const Row *rows;
const char ** patternNames;
Instrument *instruments;
const Subsong *subsongs;
const int8_t *arpTable;
const int16_t **samples;
uint bufflen;
uint loopCount;
} Player;
//---------------------------prototypes------------------------
#ifdef __cplusplus
extern "C" {
#endif
Player * playerCreate(int sampleFrequency);
void playerDestroy(Player *);
int loadSong(Player *, const Song *);
void initSubsong(Player *, int num);
void mixChunk(Player *, int16_t *outBuff, uint playbackBufferSize);
void playInstrument(Player *, int chanNum, int instrNum, int note); //could be handy dandy
bool playerGetSongEnded(Player *);
uint playerGetLoopCount(Player *);
typedef struct _stmi
{
unsigned char coarse;
unsigned char fine;
unsigned char channelsPlaying;
const char *subsongName;
int selectedSubs;
int totalSubs;
} syntrax_info;
void playerGetInfo(Player *, syntrax_info *);
#ifdef __cplusplus
}
#endif
#endif

View File

@ -0,0 +1,304 @@
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defaultConfigurationName = Release;
};
/* End XCConfigurationList section */
};
rootObject = 832FF2F01C96508E0076D662 /* Project object */;
}

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@ -0,0 +1,28 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>CFBundleDevelopmentRegion</key>
<string>en</string>
<key>CFBundleExecutable</key>
<string>$(EXECUTABLE_NAME)</string>
<key>CFBundleIdentifier</key>
<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>$(PRODUCT_NAME)</string>
<key>CFBundlePackageType</key>
<string>BNDL</string>
<key>CFBundleShortVersionString</key>
<string>1.0</string>
<key>CFBundleSignature</key>
<string>????</string>
<key>CFBundleVersion</key>
<string>1</string>
<key>NSHumanReadableCopyright</key>
<string>Copyright © 2016 Christopher Snowhill. All rights reserved.</string>
<key>NSPrincipalClass</key>
<string></string>
</dict>
</plist>

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//
// jxsContainer.h
// Syntrax-c
//
// Created by Christopher Snowhill on 03/14/16.
// Copyright 2016 __NoWork, Inc__. All rights reserved.
//
#import <Cocoa/Cocoa.h>
#import "Plugin.h"
@interface jxsContainer : NSObject <CogContainer> {
}
@end

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//
// jxsContainer.m
// Syntrax-c
//
// Created by Christopher Snowhill on 03/14/16.
// Copyright 2016 __NoWork, Inc__. All rights reserved.
//
#import <Syntrax_c/syntrax.h>
#import <Syntrax_c/file.h>
#import "jxsContainer.h"
#import "jxsDecoder.h"
#import "Logging.h"
@implementation jxsContainer
+ (NSArray *)fileTypes
{
return [jxsDecoder fileTypes];
}
+ (NSArray *)mimeTypes
{
return nil;
}
+ (float)priority
{
return 1.0f;
}
+ (NSArray *)urlsForContainerURL:(NSURL *)url
{
if ([url fragment]) {
// input url already has fragment defined - no need to expand further
return [NSMutableArray arrayWithObject:url];
}
id audioSourceClass = NSClassFromString(@"AudioSource");
id<CogSource> source = [audioSourceClass audioSourceForURL:url];
if (![source open:url])
return 0;
if (![source seekable])
return 0;
[source seek:0 whence:SEEK_END];
long size = [source tell];
[source seek:0 whence:SEEK_SET];
void * data = malloc(size);
[source read:data amount:size];
Song * synSong = File_loadSongMem(data, size);
if (!synSong)
{
ALog(@"Open failed for file: %@", [url absoluteString]);
free(data);
return NO;
}
free(data);
Player * synPlayer = playerCreate(44100);
if (!synPlayer)
{
ALog(@"Failed to create Syntrax-c player for file: %@", [url absoluteString]);
File_freeSong(synSong);
return NO;
}
if (loadSong(synPlayer, synSong) < 0)
{
ALog(@"Load failed for file: %@", [url absoluteString]);
playerDestroy(synPlayer);
File_freeSong(synSong);
return NO;
}
NSMutableArray *tracks = [NSMutableArray array];
syntrax_info info;
playerGetInfo(synPlayer, &info);
playerDestroy(synPlayer);
File_freeSong(synSong);
int i;
int subsongs = info.totalSubs;
if ( subsongs ) {
for (i = 0; i < subsongs; i++)
{
[tracks addObject:[NSURL URLWithString:[[url absoluteString] stringByAppendingFormat:@"#%i", i]]];
}
}
return tracks;
}
@end

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//
// jxsDecoder.h
// Syntrax-c
//
// Created by Christopher Snowhill on 03/14/16.
// Copyright 2016 __NoWork, Inc__. All rights reserved.
//
#import <Cocoa/Cocoa.h>
#import <Syntrax_c/file.h>
#import <Syntrax_c/syntrax.h>
#import "Plugin.h"
@interface jxsDecoder : NSObject <CogDecoder> {
Song *synSong;
Player *synPlayer;
int track_num;
long framesLength;
long totalFrames;
long framesRead;
}
@end

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//
// jxsDecoder.m
// Syntrax-c
//
// Created by Christopher Snowhill on 03/14/16.
// Copyright 2016 __NoWork, Inc__. All rights reserved.
//
#import "jxsDecoder.h"
#import "Logging.h"
#import "PlaylistController.h"
@implementation jxsDecoder
BOOL probe_length( Song * synSong, unsigned long * intro_length, unsigned long * loop_length, unsigned int subsong )
{
Player * synPlayer = playerCreate(44100);
if (loadSong(synPlayer, synSong) < 0)
return NO;
initSubsong(synPlayer, subsong);
unsigned long length_total = 0;
unsigned long length_saved;
const long length_safety = 44100 * 60 * 30;
while ( !playerGetSongEnded(synPlayer) && playerGetLoopCount(synPlayer) < 1 && length_total < length_safety )
{
mixChunk(synPlayer, NULL, 512);
length_total += 512;
}
if ( !playerGetSongEnded(synPlayer) && playerGetLoopCount(synPlayer) < 1 )
{
*loop_length = 0;
*intro_length = 44100 * 60 * 3;
playerDestroy(synPlayer);
return YES;
}
length_saved = length_total;
while ( !playerGetSongEnded(synPlayer) && playerGetLoopCount(synPlayer) < 2 )
{
mixChunk(synPlayer, NULL, 512);
length_total += 512;
}
playerDestroy(synPlayer);
*loop_length = length_total - length_saved;
*intro_length = length_saved - *loop_length;
return YES;
}
- (BOOL)open:(id<CogSource>)s
{
[s seek:0 whence:SEEK_END];
size_t size = [s tell];
[s seek:0 whence:SEEK_SET];
void * data = malloc(size);
[s read:data amount:size];
if ([[[s url] fragment] length] == 0)
track_num = 0;
else
track_num = [[[s url] fragment] intValue];
synSong = File_loadSongMem(data, size);
if (!synSong)
return NO;
free(data);
unsigned long intro_length, loop_length;
if ( !probe_length(synSong, &intro_length, &loop_length, track_num) )
return NO;
framesLength = intro_length + loop_length * 2;
totalFrames = framesLength + 44100 * 8;
[self willChangeValueForKey:@"properties"];
[self didChangeValueForKey:@"properties"];
return YES;
}
- (BOOL)decoderInitialize
{
synPlayer = playerCreate(44100);
if (!synPlayer)
return NO;
if (loadSong(synPlayer, synSong) < 0)
return NO;
initSubsong(synPlayer, track_num);
framesRead = 0;
return YES;
}
- (void)decoderShutdown
{
if ( synPlayer )
{
playerDestroy(synPlayer);
synPlayer = NULL;
}
}
- (NSDictionary *)properties
{
return [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithInt:0], @"bitrate",
[NSNumber numberWithFloat:44100], @"sampleRate",
[NSNumber numberWithDouble:totalFrames], @"totalFrames",
[NSNumber numberWithInt:16], @"bitsPerSample",
[NSNumber numberWithBool:NO], @"floatingPoint",
[NSNumber numberWithInt:2], @"channels",
[NSNumber numberWithBool:YES], @"seekable",
@"host", @"endian",
nil];
}
- (int)readAudio:(void *)buf frames:(UInt32)frames
{
BOOL repeat_one = IsRepeatOneSet();
if ( synPlayer && playerGetSongEnded(synPlayer) )
return 0;
if ( !repeat_one && framesRead >= totalFrames )
return 0;
if ( !synPlayer )
{
if ( ![self decoderInitialize] )
return 0;
}
int total = 0;
while ( total < frames ) {
int framesToRender = 512;
if ( !repeat_one && framesToRender > totalFrames - framesRead )
framesToRender = (int)(totalFrames - framesRead);
if ( framesToRender > frames - total )
framesToRender = frames - total;
int16_t * sampleBuf = ( int16_t * ) buf + total * 2;
mixChunk(synPlayer, sampleBuf, framesToRender);
if ( !repeat_one && framesRead + framesToRender > framesLength ) {
long fadeStart = ( framesLength > framesRead ) ? framesLength : framesRead;
long fadeEnd = ( framesRead + framesToRender < totalFrames ) ? framesRead + framesToRender : totalFrames;
const long fadeTotal = totalFrames - framesLength;
for ( long fadePos = fadeStart; fadePos < fadeEnd; ++fadePos ) {
const long scale = ( fadeTotal - ( fadePos - framesLength ) );
const long offset = fadePos - framesRead;
int16_t * samples = sampleBuf + offset * 2;
samples[ 0 ] = (int16_t)(samples[ 0 ] * scale / fadeTotal);
samples[ 1 ] = (int16_t)(samples[ 1 ] * scale / fadeTotal);
}
framesToRender = (int)(fadeEnd - framesRead);
}
if ( !framesToRender )
break;
total += framesToRender;
framesRead += framesToRender;
if ( playerGetSongEnded(synPlayer) )
break;
}
return total;
}
- (long)seek:(long)frame
{
if ( frame < framesRead || !synPlayer )
{
[self decoderShutdown];
if ( ![self decoderInitialize] )
return 0;
}
while ( framesRead < frame )
{
int frames_todo = INT_MAX;
if ( frames_todo > frame - framesRead )
frames_todo = (int)( frame - framesRead );
mixChunk(synPlayer, NULL, frames_todo);
framesRead += frames_todo;
}
framesRead = frame;
return frame;
}
- (void)close
{
[self decoderShutdown];
if (synSong)
{
File_freeSong(synSong);
synSong = NULL;
}
}
+ (NSArray *)fileTypes
{
return [NSArray arrayWithObjects:@"jxs", nil];
}
+ (NSArray *)mimeTypes
{
return [NSArray arrayWithObjects:@"audio/x-jxs", nil];
}
+ (float)priority
{
return 1.0;
}
@end

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//
// jxsMetadataReader.h
// Syntrax-c
//
// Created by Christopher Snowhill on 03/14/16.
// Copyright 2016 __NoWork, Inc__. All rights reserved.
//
#import <Cocoa/Cocoa.h>
#import "Plugin.h"
@interface jxsMetadataReader : NSObject <CogMetadataReader> {
}
@end

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@ -0,0 +1,102 @@
//
// jxsMetadataReader.m
// Syntrax-c
//
// Created by Christopher Snowhill on 03/14/16.
// Copyright 2016 __NoWork, Inc__. All rights reserved.
//
#import "jxsMetadataReader.h"
#import "jxsDecoder.h"
#import <Syntrax_c/syntrax.h>
#import <Syntrax_c/file.h>
#import "Logging.h"
@implementation jxsMetadataReader
+ (NSArray *)fileTypes
{
return [jxsDecoder fileTypes];
}
+ (NSArray *)mimeTypes
{
return [jxsDecoder mimeTypes];
}
+ (float)priority
{
return 1.0f;
}
+ (NSDictionary *)metadataForURL:(NSURL *)url
{
id audioSourceClass = NSClassFromString(@"AudioSource");
id<CogSource> source = [audioSourceClass audioSourceForURL:url];
if (![source open:url])
return 0;
if (![source seekable])
return 0;
[source seek:0 whence:SEEK_END];
long size = [source tell];
[source seek:0 whence:SEEK_SET];
void * data = malloc(size);
[source read:data amount:size];
Song * synSong = File_loadSongMem(data, size);
if (!synSong)
{
ALog(@"Open failed for file: %@", [url absoluteString]);
free(data);
return NO;
}
free(data);
Player * synPlayer = playerCreate(44100);
if (!synPlayer)
{
ALog(@"Failed to create player for file: %@", [url absoluteString]);
File_freeSong(synSong);
return NO;
}
if (loadSong(synPlayer, synSong) < 0)
{
ALog(@"Load failed for file: %@", [url absoluteString]);
playerDestroy(synPlayer);
File_freeSong(synSong);
return NO;
}
int track_num;
if ([[url fragment] length] == 0)
track_num = 0;
else
track_num = [[url fragment] intValue];
initSubsong(synPlayer, track_num);
syntrax_info info;
playerGetInfo(synPlayer, &info);
playerDestroy(synPlayer);
File_freeSong(synSong);
//Some titles are all spaces?!
NSString *title = [[NSString stringWithUTF8String: info.subsongName] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
if (title == nil) {
title = @"";
}
return [NSDictionary dictionaryWithObject:title forKey:@"title"];
}
@end