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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "audio/decoders/raw.h"
#include "audio/mixer.h"
#include "audio/mods/protracker.h"
#include "audio/audiostream.h"
#include "common/memstream.h"
#include "common/system.h"
#include "graphics/cursorman.h"
#include "graphics/palette.h"
#include "supernova/resman.h"
#include "supernova/supernova.h"
namespace Supernova {
struct AudioInfo {
int _filenumber;
int _offsetStart;
int _offsetEnd;
};
static Common::MemoryReadStream *convertToMod(const char *filename, int version = 1);
static const AudioInfo audioInfo[kAudioNumSamples] = {
{44, 0, -1},
{45, 0, -1},
{46, 0, 2510},
{46, 2510, 4020},
{46, 4020, -1},
{47, 0, 24010},
{47, 24010, -1},
{48, 0, 2510},
{48, 2510, 10520},
{48, 10520, 13530},
{48, 13530, -1},
{50, 0, 12786},
{50, 12786, -1},
{51, 0, -1},
{53, 0, -1},
{54, 0, 8010},
{54, 8010, 24020},
{54, 24020, 30030},
{54, 30030, 31040},
{54, 31040, -1}
};
ResourceManager::ResourceManager(SupernovaEngine *vm)
: _audioRate(11931)
, _vm(vm) {
initSoundFiles();
initGraphics();
}
ResourceManager::~ResourceManager() {
delete _musicIntro;
delete _musicOutro;
for (int i = 0; i < kAudioNumSamples; ++i)
delete _soundSamples[i];
}
Audio::SeekableAudioStream *ResourceManager::getSoundStream(AudioIndex index) {
Audio::SeekableAudioStream *stream = _soundSamples[index];
stream->rewind();
return stream;
}
Audio::AudioStream *ResourceManager::getSoundStream(MusicIndex index) {
switch (index) {
case kMusicIntro:
return _musicIntro;
case kMusicOutro:
return _musicOutro;
default:
error("Invalid music constant in playAudio()");
}
}
void ResourceManager::initSoundFiles() {
// Sound
// Note:
// - samples start with a header of 6 bytes: 01 SS SS 00 AD 00
// where SS SS (LE uint16) is the size of the sound sample + 2
// - samples end with a footer of 4 bytes: 00 00
// Skip those in the buffer
Common::File file;
for (int i = 0; i < kAudioNumSamples; ++i) {
if (!file.open(Common::String::format("msn_data.%03d", audioInfo[i]._filenumber))) {
error("File %s could not be read!", file.getName());
}
int length = 0;
byte *buffer = nullptr;
if (audioInfo[i]._offsetEnd == -1) {
file.seek(0, SEEK_END);
length = file.pos() - audioInfo[i]._offsetStart - 10;
} else {
length = audioInfo[i]._offsetEnd - audioInfo[i]._offsetStart - 10;
}
buffer = new byte[length];
file.seek(audioInfo[i]._offsetStart + 6);
file.read(buffer, length);
file.close();
byte streamFlag = Audio::FLAG_UNSIGNED | Audio::FLAG_LITTLE_ENDIAN;
_soundSamples[i] = Audio::makeRawStream(buffer, length, _audioRate,
streamFlag, DisposeAfterUse::YES);
}
Common::MemoryReadStream *music;
music = convertToMod("msn_data.052");
_musicIntro = Audio::makeProtrackerStream(music);
delete music;
music = convertToMod("msn_data.049");
_musicOutro = Audio::makeProtrackerStream(music);
delete music;
}
void ResourceManager::initGraphics() {
_vm->_system->getPaletteManager()->setPalette(initVGAPalette, 0, 256);
initCursorGraphics();
}
void ResourceManager::initCursorGraphics() {
const uint16 *bufferNormal = reinterpret_cast<const uint16 *>(mouseNormal);
const uint16 *bufferWait = reinterpret_cast<const uint16 *>(mouseWait);
for (uint i = 0; i < sizeof(mouseNormal) / 4; ++i) {
for (uint bit = 0; bit < 16; ++bit) {
uint mask = 0x8000 >> bit;
uint bitIndex = i * 16 + bit;
_cursorNormal[bitIndex] = (READ_LE_UINT16(bufferNormal + i) & mask) ?
kColorCursorTransparent : kColorBlack;
if (READ_LE_UINT16(bufferNormal + i + 16) & mask)
_cursorNormal[bitIndex] = kColorLightRed;
_cursorWait[bitIndex] = (READ_LE_UINT16(bufferWait + i) & mask) ?
kColorCursorTransparent : kColorBlack;
if (READ_LE_UINT16(bufferWait + i + 16) & mask)
_cursorWait[bitIndex] = kColorLightRed;
}
}
CursorMan.replaceCursor(_cursorNormal, 16, 16, 0, 0, kColorCursorTransparent);
CursorMan.replaceCursorPalette(initVGAPalette, 0, 16);
CursorMan.showMouse(true);
}
static Common::MemoryReadStream *convertToMod(const char *filename, int version) {
// MSN format
struct {
uint16 seg;
uint16 start;
uint16 end;
uint16 loopStart;
uint16 loopEnd;
char volume;
char dummy[5];
} instr2[22];
int nbInstr2; // 22 for version1, 15 for version 2
int16 songLength;
char arrangement[128];
int16 patternNumber;
int32 note2[28][64][4];
nbInstr2 = ((version == 1) ? 22 : 15);
Common::File msnFile;
msnFile.open(filename);
if (!msnFile.isOpen()) {
warning("Data file '%s' not found", msnFile.getName());
return NULL;
}
for (int i = 0 ; i < nbInstr2 ; ++i) {
instr2[i].seg = msnFile.readUint16LE();
instr2[i].start = msnFile.readUint16LE();
instr2[i].end = msnFile.readUint16LE();
instr2[i].loopStart = msnFile.readUint16LE();
instr2[i].loopEnd = msnFile.readUint16LE();
instr2[i].volume = msnFile.readByte();
msnFile.read(instr2[i].dummy, 5);
}
songLength = msnFile.readSint16LE();
msnFile.read(arrangement, 128);
patternNumber = msnFile.readSint16LE();
for (int p = 0 ; p < patternNumber ; ++p) {
for (int n = 0 ; n < 64 ; ++n) {
for (int k = 0 ; k < 4 ; ++k) {
note2[p][n][k] = msnFile.readSint32LE();
}
}
}
/* MOD format */
struct {
char iname[22];
uint16 length;
char finetune;
char volume;
uint16 loopStart;
uint16 loopLength;
} instr[31];
int32 note[28][64][4];
// We can't recover some MOD effects since several of them are mapped to 0.
// Assume the MSN effect of value 0 is Arpeggio (MOD effect of value 0).
const char invConvEff[8] = {0, 1, 2, 3, 10, 12, 13 ,15};
// Reminder from convertToMsn
// 31 30 29 28 27 26 25 24 - 23 22 21 20 19 18 17 16 - 15 14 13 12 11 10 09 08 - 07 06 05 04 03 02 01 00
// h h h h g g g g f f f f e e e e d d d d c c c c b b b b a a a a
//
// MSN:
// hhhh (4 bits) Cleared to 0
// dddd c (5 bits) Sample index | after mapping through convInstr
// ccc (3 bits) Effect type | after mapping through convEff
// bbbb aaaa (8 bits) Effect value | unmodified
// gggg ffff eeee (12 bits) Sample period | unmodified
//
// MS2:
// hhhh (4 bits) Cleared to 0
// dddd (4 bits) Sample index | after mapping through convInstr
// cccc (4 bits) Effect type | unmodified
// bbbb aaaa (8 bits) Effect value | unmodified
// gggg ffff eeee (12 bits) Sample period | transformed (0xE000 / p) - 256
//
// MOD:
// hhhh dddd (8 bits) Sample index
// cccc (4 bits) Effect type for this channel/division
// bbbb aaaa (8 bits) Effect value
// gggg ffff eeee (12 bits) Sample period
// Can we recover the instruments mapping? I don't think so as part of the original instrument index is cleared.
// And it doesn't really matter as long as we are consistent.
// However we need to make sure 31 (or 15 in MS2) is mapped to 0 in MOD.
// We just add 1 to all other values, and this means a 1 <-> 1 mapping for the instruments
for (int p = 0; p < patternNumber; ++p) {
for (int n = 0; n < 64; ++n) {
for (int k = 0; k < 4; ++k) {
int32* l = &(note[p][n][k]);
*l = note2[p][n][k];
int32 i = 0;
if (nbInstr2 == 22) { // version 1
i = ((*l & 0xF800) >> 11);
int32 e = ((*l & 0x0700) >> 8);
int32 e1 = invConvEff[e];
*l &= 0x0FFF00FF;
*l |= (e1 << 8);
} else { // version 2
int32 h = (*l >> 16);
i = ((*l & 0xF000) >> 12);
*l &= 0x00000FFF;
if (h)
h = 0xE000 / (h + 256);
*l |= (h << 16);
if (i == 15)
i = 31;
}
// Add back index in note
if (i != 31) {
++i;
*l |= ((i & 0x0F) << 12);
*l |= ((i & 0xF0) << 24);
}
}
}
}
for (int i = 0; i < 31; ++i) {
// iname is not stored in the mod file. Just set it to 'instrument#'
// finetune is not stored either. Assume 0.
memset(instr[i].iname, 0, 22);
sprintf(instr[i].iname, "instrument%d", i+1);
instr[i].length = 0;
instr[i].finetune = 0;
instr[i].volume = 0;
instr[i].loopStart = 0;
instr[i].loopLength = 0;
if (i < nbInstr2) {
instr[i].length = ((instr2[i].end - instr2[i].start) >> 1);
instr[i].loopStart = ((instr2[i].loopStart - instr2[i].start) >> 1);
instr[i].loopLength = (( instr2[i].loopEnd - instr2[i].loopStart) >> 1);
instr[i].volume = instr2[i].volume;
}
}
// The ciaaSpeed is kind of useless and not present in the MSN file.
// Traditionally 0x78 in SoundTracker. Was used in NoiseTracker as a restart point.
// ProTracker uses 0x7F. FastTracker uses it as a restart point, whereas ScreamTracker 3 uses 0x7F like ProTracker.
// You can use this to roughly detect which tracker made a MOD, and detection gets more accurate for more obscure MOD types.
char ciaaSpeed = 0x7F;
// The mark cannot be recovered either. Since we have 4 channels and 31 instrument it can be either ID='M.K.' or ID='4CHN'.
// Assume 'M.K.'
const char mark[4] = { 'M', '.', 'K', '.' };
Common::MemoryWriteStreamDynamic buffer(DisposeAfterUse::NO);
buffer.write(msnFile.getName(), 19);
buffer.writeByte(0);
for (int i = 0 ; i < 31 ; ++i) {
buffer.write(instr[i].iname, 22);
buffer.writeUint16BE(instr[i].length);
buffer.writeByte(instr[i].finetune);
buffer.writeByte(instr[i].volume);
buffer.writeUint16BE(instr[i].loopStart);
buffer.writeUint16BE(instr[i].loopLength);
}
buffer.writeByte((char)songLength);
buffer.writeByte(ciaaSpeed);
buffer.write(arrangement, 128);
buffer.write(mark, 4);
for (int p = 0 ; p < patternNumber ; ++p) {
for (int n = 0 ; n < 64 ; ++n) {
for (int k = 0 ; k < 4 ; ++k) {
// buffer.writeUint32BE(*((uint32*)(note[p][n]+k)));
buffer.writeSint32BE(note[p][n][k]);
}
}
}
uint nb;
char buf[4096];
while ((nb = msnFile.read(buf, 4096)) > 0)
buffer.write(buf, nb);
return new Common::MemoryReadStream(buffer.getData(), buffer.size(), DisposeAfterUse::YES);
}
}
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