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Diffstat (limited to 'lib/libmodplug/src/load_dmf.cpp')
-rw-r--r--lib/libmodplug/src/load_dmf.cpp606
1 files changed, 0 insertions, 606 deletions
diff --git a/lib/libmodplug/src/load_dmf.cpp b/lib/libmodplug/src/load_dmf.cpp
deleted file mode 100644
index f8b803b6a6..0000000000
--- a/lib/libmodplug/src/load_dmf.cpp
+++ /dev/null
@@ -1,606 +0,0 @@
-/*
- * This source code is public domain.
- *
- * Authors: Olivier Lapicque <olivierl@jps.net>
-*/
-
-///////////////////////////////////////////////////////
-// DMF DELUSION DIGITAL MUSIC FILEFORMAT (X-Tracker) //
-///////////////////////////////////////////////////////
-#include "stdafx.h"
-#include "sndfile.h"
-
-//#define DMFLOG
-
-//#pragma warning(disable:4244)
-
-#pragma pack(1)
-
-typedef struct DMFHEADER
-{
- DWORD id; // "DDMF" = 0x464d4444
- BYTE version; // 4
- CHAR trackername[8]; // "XTRACKER"
- CHAR songname[30];
- CHAR composer[20];
- BYTE date[3];
-} DMFHEADER;
-
-typedef struct DMFINFO
-{
- DWORD id; // "INFO"
- DWORD infosize;
-} DMFINFO;
-
-typedef struct DMFSEQU
-{
- DWORD id; // "SEQU"
- DWORD seqsize;
- WORD loopstart;
- WORD loopend;
- WORD sequ[2];
-} DMFSEQU;
-
-typedef struct DMFPATT
-{
- DWORD id; // "PATT"
- DWORD patsize;
- WORD numpat; // 1-1024
- BYTE tracks;
- BYTE firstpatinfo;
-} DMFPATT;
-
-typedef struct DMFTRACK
-{
- BYTE tracks;
- BYTE beat; // [hi|lo] -> hi=ticks per beat, lo=beats per measure
- WORD ticks; // max 512
- DWORD jmpsize;
-} DMFTRACK;
-
-typedef struct DMFSMPI
-{
- DWORD id;
- DWORD size;
- BYTE samples;
-} DMFSMPI;
-
-typedef struct DMFSAMPLE
-{
- DWORD len;
- DWORD loopstart;
- DWORD loopend;
- WORD c3speed;
- BYTE volume;
- BYTE flags;
-} DMFSAMPLE;
-
-#pragma pack()
-
-
-#ifdef DMFLOG
-extern void Log(LPCSTR s, ...);
-#endif
-
-
-BOOL CSoundFile::ReadDMF(const BYTE *lpStream, DWORD dwMemLength)
-//---------------------------------------------------------------
-{
- DMFHEADER *pfh = (DMFHEADER *)lpStream;
- DMFINFO *psi;
- DMFSEQU *sequ;
- DWORD dwMemPos;
- BYTE infobyte[32];
- BYTE smplflags[MAX_SAMPLES];
-
- if ((!lpStream) || (dwMemLength < 1024)) return FALSE;
- if ((pfh->id != 0x464d4444) || (!pfh->version) || (pfh->version & 0xF0)) return FALSE;
- dwMemPos = 66;
- memcpy(m_szNames[0], pfh->songname, 30);
- m_szNames[0][30] = 0;
- m_nType = MOD_TYPE_DMF;
- m_nChannels = 0;
-#ifdef DMFLOG
- Log("DMF version %d: \"%s\": %d bytes (0x%04X)\n", pfh->version, m_szNames[0], dwMemLength, dwMemLength);
-#endif
- while (dwMemPos + 7 < dwMemLength)
- {
- DWORD id = *((LPDWORD)(lpStream+dwMemPos));
-
- switch(id)
- {
- // "INFO"
- case 0x4f464e49:
- // "CMSG"
- case 0x47534d43:
- psi = (DMFINFO *)(lpStream+dwMemPos);
- if (id == 0x47534d43) dwMemPos++;
- if ((psi->infosize > dwMemLength) || (psi->infosize + dwMemPos + 8 > dwMemLength)) goto dmfexit;
- if ((psi->infosize >= 8) && (!m_lpszSongComments))
- {
- m_lpszSongComments = new char[psi->infosize]; // changed from CHAR
- if (m_lpszSongComments)
- {
- for (UINT i=0; i<psi->infosize-1; i++)
- {
- CHAR c = lpStream[dwMemPos+8+i];
- if ((i % 40) == 39)
- m_lpszSongComments[i] = 0x0d;
- else
- m_lpszSongComments[i] = (c < ' ') ? ' ' : c;
- }
- m_lpszSongComments[psi->infosize-1] = 0;
- }
- }
- dwMemPos += psi->infosize + 8 - 1;
- break;
-
- // "SEQU"
- case 0x55514553:
- sequ = (DMFSEQU *)(lpStream+dwMemPos);
- if ((sequ->seqsize >= dwMemLength) || (dwMemPos + sequ->seqsize + 12 > dwMemLength)) goto dmfexit;
- {
- UINT nseq = sequ->seqsize >> 1;
- if (nseq >= MAX_ORDERS-1) nseq = MAX_ORDERS-1;
- if (sequ->loopstart < nseq) m_nRestartPos = sequ->loopstart;
- for (UINT i=0; i<nseq; i++) Order[i] = (BYTE)sequ->sequ[i];
- }
- dwMemPos += sequ->seqsize + 8;
- break;
-
- // "PATT"
- case 0x54544150:
- if (!m_nChannels)
- {
- DMFPATT *patt = (DMFPATT *)(lpStream+dwMemPos);
- UINT numpat;
- DWORD dwPos = dwMemPos + 11;
- if ((patt->patsize >= dwMemLength) || (dwMemPos + patt->patsize + 8 > dwMemLength)) goto dmfexit;
- numpat = patt->numpat;
- if (numpat > MAX_PATTERNS) numpat = MAX_PATTERNS;
- m_nChannels = patt->tracks;
- if (m_nChannels < patt->firstpatinfo) m_nChannels = patt->firstpatinfo;
- if (m_nChannels > 32) m_nChannels = 32;
- if (m_nChannels < 4) m_nChannels = 4;
- for (UINT npat=0; npat<numpat; npat++)
- {
- DMFTRACK *pt = (DMFTRACK *)(lpStream+dwPos);
- #ifdef DMFLOG
- Log("Pattern #%d: %d tracks, %d rows\n", npat, pt->tracks, pt->ticks);
- #endif
- UINT tracks = pt->tracks;
- if (tracks > 32) tracks = 32;
- UINT ticks = pt->ticks;
- if (ticks > 256) ticks = 256;
- if (ticks < 16) ticks = 16;
- dwPos += 8;
- if ((pt->jmpsize >= dwMemLength) || (dwPos + pt->jmpsize + 4 >= dwMemLength)) break;
- PatternSize[npat] = (WORD)ticks;
- MODCOMMAND *m = AllocatePattern(PatternSize[npat], m_nChannels);
- if (!m) goto dmfexit;
- Patterns[npat] = m;
- DWORD d = dwPos;
- dwPos += pt->jmpsize;
- UINT ttype = 1;
- UINT tempo = 125;
- UINT glbinfobyte = 0;
- UINT pbeat = (pt->beat & 0xf0) ? pt->beat>>4 : 8;
- BOOL tempochange = (pt->beat & 0xf0) ? TRUE : FALSE;
- memset(infobyte, 0, sizeof(infobyte));
- for (UINT row=0; row<ticks; row++)
- {
- MODCOMMAND *p = &m[row*m_nChannels];
- // Parse track global effects
- if (!glbinfobyte)
- {
- BYTE info = lpStream[d++];
- BYTE infoval = 0;
- if ((info & 0x80) && (d < dwPos)) glbinfobyte = lpStream[d++];
- info &= 0x7f;
- if ((info) && (d < dwPos)) infoval = lpStream[d++];
- switch(info)
- {
- case 1: ttype = 0; tempo = infoval; tempochange = TRUE; break;
- case 2: ttype = 1; tempo = infoval; tempochange = TRUE; break;
- case 3: pbeat = infoval>>4; tempochange = ttype; break;
- #ifdef DMFLOG
- default: if (info) Log("GLB: %02X.%02X\n", info, infoval);
- #endif
- }
- } else
- {
- glbinfobyte--;
- }
- // Parse channels
- for (UINT i=0; i<tracks; i++) if (!infobyte[i])
- {
- MODCOMMAND cmd = {0,0,0,0,0,0};
- BYTE info = lpStream[d++];
- if (info & 0x80) infobyte[i] = lpStream[d++];
- // Instrument
- if (info & 0x40)
- {
- cmd.instr = lpStream[d++];
- }
- // Note
- if (info & 0x20)
- {
- cmd.note = lpStream[d++];
- if ((cmd.note) && (cmd.note < 0xfe)) cmd.note &= 0x7f;
- if ((cmd.note) && (cmd.note < 128)) cmd.note += 24;
- }
- // Volume
- if (info & 0x10)
- {
- cmd.volcmd = VOLCMD_VOLUME;
- cmd.vol = (lpStream[d++]+3)>>2;
- }
- // Effect 1
- if (info & 0x08)
- {
- BYTE efx = lpStream[d++];
- BYTE eval = lpStream[d++];
- switch(efx)
- {
- // 1: Key Off
- case 1: if (!cmd.note) cmd.note = 0xFE; break;
- // 2: Set Loop
- // 4: Sample Delay
- case 4: if (eval&0xe0) { cmd.command = CMD_S3MCMDEX; cmd.param = (eval>>5)|0xD0; } break;
- // 5: Retrig
- case 5: if (eval&0xe0) { cmd.command = CMD_RETRIG; cmd.param = (eval>>5); } break;
- // 6: Offset
- case 6: cmd.command = CMD_OFFSET; cmd.param = eval; break;
- #ifdef DMFLOG
- default: Log("FX1: %02X.%02X\n", efx, eval);
- #endif
- }
- }
- // Effect 2
- if (info & 0x04)
- {
- BYTE efx = lpStream[d++];
- BYTE eval = lpStream[d++];
- switch(efx)
- {
- // 1: Finetune
- case 1: if (eval&0xf0) { cmd.command = CMD_S3MCMDEX; cmd.param = (eval>>4)|0x20; } break;
- // 2: Note Delay
- case 2: if (eval&0xe0) { cmd.command = CMD_S3MCMDEX; cmd.param = (eval>>5)|0xD0; } break;
- // 3: Arpeggio
- case 3: if (eval) { cmd.command = CMD_ARPEGGIO; cmd.param = eval; } break;
- // 4: Portamento Up
- case 4: cmd.command = CMD_PORTAMENTOUP; cmd.param = (eval >= 0xe0) ? 0xdf : eval; break;
- // 5: Portamento Down
- case 5: cmd.command = CMD_PORTAMENTODOWN; cmd.param = (eval >= 0xe0) ? 0xdf : eval; break;
- // 6: Tone Portamento
- case 6: cmd.command = CMD_TONEPORTAMENTO; cmd.param = eval; break;
- // 8: Vibrato
- case 8: cmd.command = CMD_VIBRATO; cmd.param = eval; break;
- // 12: Note cut
- case 12: if (eval & 0xe0) { cmd.command = CMD_S3MCMDEX; cmd.param = (eval>>5)|0xc0; }
- else if (!cmd.note) { cmd.note = 0xfe; } break;
- #ifdef DMFLOG
- default: Log("FX2: %02X.%02X\n", efx, eval);
- #endif
- }
- }
- // Effect 3
- if (info & 0x02)
- {
- BYTE efx = lpStream[d++];
- BYTE eval = lpStream[d++];
- switch(efx)
- {
- // 1: Vol Slide Up
- case 1: if (eval == 0xff) break;
- eval = (eval+3)>>2; if (eval > 0x0f) eval = 0x0f;
- cmd.command = CMD_VOLUMESLIDE; cmd.param = eval<<4; break;
- // 2: Vol Slide Down
- case 2: if (eval == 0xff) break;
- eval = (eval+3)>>2; if (eval > 0x0f) eval = 0x0f;
- cmd.command = CMD_VOLUMESLIDE; cmd.param = eval; break;
- // 7: Set Pan
- case 7: if (!cmd.volcmd) { cmd.volcmd = VOLCMD_PANNING; cmd.vol = (eval+3)>>2; }
- else { cmd.command = CMD_PANNING8; cmd.param = eval; } break;
- // 8: Pan Slide Left
- case 8: eval = (eval+3)>>2; if (eval > 0x0f) eval = 0x0f;
- cmd.command = CMD_PANNINGSLIDE; cmd.param = eval<<4; break;
- // 9: Pan Slide Right
- case 9: eval = (eval+3)>>2; if (eval > 0x0f) eval = 0x0f;
- cmd.command = CMD_PANNINGSLIDE; cmd.param = eval; break;
- #ifdef DMFLOG
- default: Log("FX3: %02X.%02X\n", efx, eval);
- #endif
-
- }
- }
- // Store effect
- if (i < m_nChannels) p[i] = cmd;
- if (d > dwPos)
- {
- #ifdef DMFLOG
- Log("Unexpected EOP: row=%d\n", row);
- #endif
- break;
- }
- } else
- {
- infobyte[i]--;
- }
-
- // Find free channel for tempo change
- if (tempochange)
- {
- tempochange = FALSE;
- UINT speed=6, modtempo=tempo;
- UINT rpm = ((ttype) && (pbeat)) ? tempo*pbeat : (tempo+1)*15;
- for (speed=30; speed>1; speed--)
- {
- modtempo = rpm*speed/24;
- if (modtempo <= 200) break;
- if ((speed < 6) && (modtempo < 256)) break;
- }
- #ifdef DMFLOG
- Log("Tempo change: ttype=%d pbeat=%d tempo=%3d -> speed=%d tempo=%d\n",
- ttype, pbeat, tempo, speed, modtempo);
- #endif
- for (UINT ich=0; ich<m_nChannels; ich++) if (!p[ich].command)
- {
- if (speed)
- {
- p[ich].command = CMD_SPEED;
- p[ich].param = (BYTE)speed;
- speed = 0;
- } else
- if ((modtempo >= 32) && (modtempo < 256))
- {
- p[ich].command = CMD_TEMPO;
- p[ich].param = (BYTE)modtempo;
- modtempo = 0;
- } else
- {
- break;
- }
- }
- }
- if (d >= dwPos) break;
- }
- #ifdef DMFLOG
- Log(" %d/%d bytes remaining\n", dwPos-d, pt->jmpsize);
- #endif
- if (dwPos + 8 >= dwMemLength) break;
- }
- dwMemPos += patt->patsize + 8;
- }
- break;
-
- // "SMPI": Sample Info
- case 0x49504d53:
- {
- DMFSMPI *pds = (DMFSMPI *)(lpStream+dwMemPos);
- if (pds->size <= dwMemLength - dwMemPos)
- {
- DWORD dwPos = dwMemPos + 9;
- m_nSamples = pds->samples;
- if (m_nSamples >= MAX_SAMPLES) m_nSamples = MAX_SAMPLES-1;
- for (UINT iSmp=1; iSmp<=m_nSamples; iSmp++)
- {
- UINT namelen = lpStream[dwPos];
- smplflags[iSmp] = 0;
- if (dwPos+namelen+1+sizeof(DMFSAMPLE) > dwMemPos+pds->size+8) break;
- if (namelen)
- {
- UINT rlen = (namelen < 32) ? namelen : 31;
- memcpy(m_szNames[iSmp], lpStream+dwPos+1, rlen);
- m_szNames[iSmp][rlen] = 0;
- }
- dwPos += namelen + 1;
- DMFSAMPLE *psh = (DMFSAMPLE *)(lpStream+dwPos);
- MODINSTRUMENT *psmp = &Ins[iSmp];
- psmp->nLength = psh->len;
- psmp->nLoopStart = psh->loopstart;
- psmp->nLoopEnd = psh->loopend;
- psmp->nC4Speed = psh->c3speed;
- psmp->nGlobalVol = 64;
- psmp->nVolume = (psh->volume) ? ((WORD)psh->volume)+1 : (WORD)256;
- psmp->uFlags = (psh->flags & 2) ? CHN_16BIT : 0;
- if (psmp->uFlags & CHN_16BIT) psmp->nLength >>= 1;
- if (psh->flags & 1) psmp->uFlags |= CHN_LOOP;
- smplflags[iSmp] = psh->flags;
- dwPos += (pfh->version < 8) ? 22 : 30;
- #ifdef DMFLOG
- Log("SMPI %d/%d: len=%d flags=0x%02X\n", iSmp, m_nSamples, psmp->nLength, psh->flags);
- #endif
- }
- }
- dwMemPos += pds->size + 8;
- }
- break;
-
- // "SMPD": Sample Data
- case 0x44504d53:
- {
- DWORD dwPos = dwMemPos + 8;
- UINT ismpd = 0;
- for (UINT iSmp=1; iSmp<=m_nSamples; iSmp++)
- {
- ismpd++;
- DWORD pksize;
- if (dwPos + 4 >= dwMemLength)
- {
- #ifdef DMFLOG
- Log("Unexpected EOF at sample %d/%d! (pos=%d)\n", iSmp, m_nSamples, dwPos);
- #endif
- break;
- }
- pksize = *((LPDWORD)(lpStream+dwPos));
- #ifdef DMFLOG
- Log("sample %d: pos=0x%X pksize=%d ", iSmp, dwPos, pksize);
- Log("len=%d flags=0x%X [%08X]\n", Ins[iSmp].nLength, smplflags[ismpd], *((LPDWORD)(lpStream+dwPos+4)));
- #endif
- dwPos += 4;
- if (pksize > dwMemLength - dwPos)
- {
- #ifdef DMFLOG
- Log("WARNING: pksize=%d, but only %d bytes left\n", pksize, dwMemLength-dwPos);
- #endif
- pksize = dwMemLength - dwPos;
- }
- if ((pksize) && (iSmp <= m_nSamples))
- {
- UINT flags = (Ins[iSmp].uFlags & CHN_16BIT) ? RS_PCM16S : RS_PCM8S;
- if (smplflags[ismpd] & 4) flags = (Ins[iSmp].uFlags & CHN_16BIT) ? RS_DMF16 : RS_DMF8;
- ReadSample(&Ins[iSmp], flags, (LPSTR)(lpStream+dwPos), pksize);
- }
- dwPos += pksize;
- }
- dwMemPos = dwPos;
- }
- break;
-
- // "ENDE": end of file
- case 0x45444e45:
- goto dmfexit;
-
- // Unrecognized id, or "ENDE" field
- default:
- dwMemPos += 4;
- break;
- }
- }
-dmfexit:
- if (!m_nChannels)
- {
- if (!m_nSamples)
- {
- m_nType = MOD_TYPE_NONE;
- return FALSE;
- }
- m_nChannels = 4;
- }
- return TRUE;
-}
-
-
-///////////////////////////////////////////////////////////////////////
-// DMF Compression
-
-#pragma pack(1)
-
-typedef struct DMF_HNODE
-{
- short int left, right;
- BYTE value;
-} DMF_HNODE;
-
-typedef struct DMF_HTREE
-{
- LPBYTE ibuf, ibufmax;
- DWORD bitbuf;
- UINT bitnum;
- UINT lastnode, nodecount;
- DMF_HNODE nodes[256];
-} DMF_HTREE;
-
-#pragma pack()
-
-
-// DMF Huffman ReadBits
-BYTE DMFReadBits(DMF_HTREE *tree, UINT nbits)
-//-------------------------------------------
-{
- BYTE x = 0, bitv = 1;
- while (nbits--)
- {
- if (tree->bitnum)
- {
- tree->bitnum--;
- } else
- {
- tree->bitbuf = (tree->ibuf < tree->ibufmax) ? *(tree->ibuf++) : 0;
- tree->bitnum = 7;
- }
- if (tree->bitbuf & 1) x |= bitv;
- bitv <<= 1;
- tree->bitbuf >>= 1;
- }
- return x;
-}
-
-//
-// tree: [8-bit value][12-bit index][12-bit index] = 32-bit
-//
-
-void DMFNewNode(DMF_HTREE *tree)
-//------------------------------
-{
- BYTE isleft, isright;
- UINT actnode;
-
- actnode = tree->nodecount;
- if (actnode > 255) return;
- tree->nodes[actnode].value = DMFReadBits(tree, 7);
- isleft = DMFReadBits(tree, 1);
- isright = DMFReadBits(tree, 1);
- actnode = tree->lastnode;
- if (actnode > 255) return;
- tree->nodecount++;
- tree->lastnode = tree->nodecount;
- if (isleft)
- {
- tree->nodes[actnode].left = tree->lastnode;
- DMFNewNode(tree);
- } else
- {
- tree->nodes[actnode].left = -1;
- }
- tree->lastnode = tree->nodecount;
- if (isright)
- {
- tree->nodes[actnode].right = tree->lastnode;
- DMFNewNode(tree);
- } else
- {
- tree->nodes[actnode].right = -1;
- }
-}
-
-
-int DMFUnpack(LPBYTE psample, LPBYTE ibuf, LPBYTE ibufmax, UINT maxlen)
-//----------------------------------------------------------------------
-{
- DMF_HTREE tree;
- UINT actnode;
- BYTE value, sign, delta = 0;
-
- memset(&tree, 0, sizeof(tree));
- tree.ibuf = ibuf;
- tree.ibufmax = ibufmax;
- DMFNewNode(&tree);
- value = 0;
- for (UINT i=0; i<maxlen; i++)
- {
- actnode = 0;
- sign = DMFReadBits(&tree, 1);
- do
- {
- if (DMFReadBits(&tree, 1))
- actnode = tree.nodes[actnode].right;
- else
- actnode = tree.nodes[actnode].left;
- if (actnode > 255) break;
- delta = tree.nodes[actnode].value;
- if ((tree.ibuf >= tree.ibufmax) && (!tree.bitnum)) break;
- } while ((tree.nodes[actnode].left >= 0) && (tree.nodes[actnode].right >= 0));
- if (sign) delta ^= 0xFF;
- value += delta;
- psample[i] = (i) ? value : 0;
- }
-#ifdef DMFLOG
-// Log("DMFUnpack: %d remaining bytes\n", tree.ibufmax-tree.ibuf);
-#endif
- return tree.ibuf - ibuf;
-}
-
-
generated by cgit v1.2.3 (git 2.26.2) at 2025-03-21 15:12:30 +0000