From 638bab0b56f35b2b3a2a5b944af1ad97da47f56d Mon Sep 17 00:00:00 2001
From: mrshigure <mrshigure64@gmail.com>
Date: Mon, 13 Jan 2025 04:45:28 -0800
Subject: [PATCH] Matched most of msmmus (2 functions left)

---
 include/game/msm.h   |   2 +-
 include/msm/msmmus.h |  19 ++-
 include/msm/msmsys.h |  18 ++-
 src/msm/msmmus.c     | 342 +++++++++++++++++++++++++++++++++++++++++++
 src/msm/msmse.c      |   4 +-
 src/msm/msmsys.c     |   2 +-
 6 files changed, 374 insertions(+), 13 deletions(-)
 create mode 100755 src/msm/msmmus.c

diff --git a/include/game/msm.h b/include/game/msm.h
index bbc1e4f2..5d7dfa11 100644
--- a/include/game/msm.h
+++ b/include/game/msm.h
@@ -187,7 +187,7 @@ s32 msmSeGetEntryID(s32 seId, int *seNo);
 
 int msmMusPlay(int musId, MSM_MUSPARAM *musParam);
 s32 msmMusStop(int musNo, s32 speed);
-s32 msmMusPauseAll(BOOL pause, s32 speed);
+void msmMusPauseAll(BOOL pause, s32 speed);
 s32 msmMusPause(int musNo, BOOL pause, s32 speed);
 s32 msmMusGetMidiCtrl(int musNo, s32 channel, s32 ctrl);
 void msmMusStopAll(BOOL checkGrp, s32 speed);
diff --git a/include/msm/msmmus.h b/include/msm/msmmus.h
index 8d3554fc..a6951063 100644
--- a/include/msm/msmmus.h
+++ b/include/msm/msmmus.h
@@ -1,10 +1,23 @@
 #ifndef MSMMUS_H
 #define MSMMUS_H
 
-#include "dolphin.h"
-#include "dolphin/types.h"
+#include "game/msm.h"
+#include "msm/msmsys.h"
 
-s32 msmMusInit(s32 *, DVDFileInfo *);
+#include "dolphin.h"
+
+void msmMusFdoutEnd(void);
 void msmMusPeriodicProc(void);
+s32 msmMusGetMidiCtrl(int musNo, s32 channel, s32 ctrl);
+s32 msmMusGetNumPlay(BOOL baseGrp);
+s32 msmMusGetStatus(int musNo);
+void msmMusSetMasterVolume(s32 arg0);
+s32 msmMusSetParam(s32 arg0, MSM_MUSPARAM* arg1);
+void msmMusPauseAll(BOOL pause, s32 speed);
+s32 msmMusPause(int musNo, BOOL pause, s32 speed);
+void msmMusStopAll(BOOL checkGrp, s32 speed);
+s32 msmMusStop(int musNo, s32 speed);
+int msmMusPlay(int musId, MSM_MUSPARAM* musParam);
+s32 msmMusInit(sysData* arg0, DVDFileInfo* arg1);
 
 #endif
diff --git a/include/msm/msmsys.h b/include/msm/msmsys.h
index f668e33d..fbd36f7e 100755
--- a/include/msm/msmsys.h
+++ b/include/msm/msmsys.h
@@ -51,13 +51,17 @@ typedef struct _unkSubStruct3 {
     u32 unk14; // length
     s32 unk18; // offset
     u32 unk1C; // length
-    char unk20[0x10];
+    char unk20[8];
+    s32 unk28;
+    s32 unk2C;
     s32 unk30;
     s32 unk34;
     s32 unk38;
     char unk3C[4];
     s32 unk40;
-    char unk44[0x1C];
+    char unk44[4];
+    s32 unk48;
+    char unk4C[0x14];
 } unkSubStruct3; // sizeof 0x60
 
 typedef struct _unkStruct3 {
@@ -70,14 +74,18 @@ typedef struct _sndInitData {
     s8 unk0;
     s8 unk1;
     s8 unk2;
-    char unk3[3];
+    char unk3[1];
+    s16 unk4;
     s16 unk6;
-    char unk8[6];
+    s8 unk8;
+    char unk9[5];
     s8 unkE;
     s8 unkF;
     u32 unk10;
     s32 unk14;
-    char unk18[0x11];
+    char unk18[8];
+    s32 unk20;
+    char unk24[5];
     s8 unk29[10]; // size unknown
 } sndInitData;
 
diff --git a/src/msm/msmmus.c b/src/msm/msmmus.c
new file mode 100755
index 00000000..8f87e7a5
--- /dev/null
+++ b/src/msm/msmmus.c
@@ -0,0 +1,342 @@
+#include "msm/msmmus.h"
+
+typedef struct {
+    /* 0x00 */ s16 unk00;
+    /* 0x02 */ s8 unk02;
+    /* 0x03 */ s8 unk03;
+    /* 0x04 */ s8 unk04;
+    /* 0x05 */ s8 unk05;
+    /* 0x06 */ char unk06[2];
+    /* 0x08 */ SND_SEQID unk08;
+    /* 0x0C */ void* unk0C;
+    /* 0x10 */ void* unk10;
+    /* 0x14 */ volatile s32 unk14;
+    /* 0x18 */ s32 unk18;
+    /* 0x1C */ s8 unk1C;
+    /* 0x1D */ char unk1D[3];
+    /* 0x20 */ volatile s32 unk20;
+    /* 0x24 */ s32 unk24;
+    /* 0x28 */ s8 unk28;
+    /* 0x29 */ char unk29[3];
+    /* 0x2C */ volatile s32 unk2C;
+    /* 0x30 */ s32 unk30;
+    /* 0x34 */ char unk34[1];
+    /* 0x35 */ volatile s8 unk35;
+    /* 0x36 */ s8 unk36;
+    /* 0x37 */ char unk37[1];
+    /* 0x38 */ SND_PLAYPARA unk38;
+} msmMusStruct00; // Size 0x58
+
+typedef struct {
+    /* 0x00 */ u16 unk00;
+    /* 0x02 */ s16 unk02;
+    /* 0x04 */ s32 unk04;
+    /* 0x08 */ s32 unk08;
+    /* 0x0C */ s8 unk0C;
+    /* 0x0D */ s8 unk0D;
+    /* 0x0E */ char unk0E[2];
+} msmMusStruct01; // Size 0x10
+
+typedef struct {
+    /* 0x000 */ s16 unk00;
+    /* 0x002 */ s8 unk02;
+    /* 0x003 */ s8 unk03;
+    /* 0x004 */ s8 unk04;
+    /* 0x005 */ char unk05[3];
+    /* 0x008 */ s32 unk08;
+    /* 0x00C */ msmMusStruct01* unk0C;
+    /* 0x010 */ s32 unk10;
+    /* 0x014 */ void* unk14;
+    /* 0x018 */ msmMusStruct00 unk18[1]; // unknown length
+    /* 0x01C */ char unk70[0x108];
+} msmMusStruct02; // Size 0x178
+
+static msmMusStruct02 mus;
+
+static void msmMusPauseSub(msmMusStruct00* arg0, BOOL pause, s32 speed) {
+    s32 temp_r30;
+
+    temp_r30 = speed / 15;
+    if (pause) {
+        if (arg0->unk04 == 2) {
+            if (temp_r30 != 0) {
+                arg0->unk24 = temp_r30;
+                arg0->unk20 = temp_r30;
+                arg0->unk28 = 0x7F;
+            } else {
+                sndSeqPause(arg0->unk08);
+                arg0->unk28 = 0;
+            }
+            arg0->unk04 = 3;
+        }
+    } else {
+        if (arg0->unk04 == 3) {
+            if (temp_r30 != 0) {
+                if (arg0->unk20 != 0) {
+                    arg0->unk20 = -temp_r30;
+                } else {
+                    sndSeqContinue(arg0->unk08);
+                    arg0->unk20 = -temp_r30;
+                    arg0->unk24 = 0;
+                    arg0->unk28 = 0;
+                }
+            } else {
+                sndSeqContinue(arg0->unk08);
+                arg0->unk28 = 0x7F;
+                sndSeqVolume(arg0->unk02 * arg0->unk03 * arg0->unk1C * arg0->unk28 / 2048383, 0, arg0->unk08, 0);
+            }
+            arg0->unk04 = 2;
+        }
+    }
+}
+
+static void msmMusPauseFade(msmMusStruct00* arg0) {
+    if (arg0->unk20 > 0) {
+        if (--arg0->unk24 == 0) {
+            arg0->unk20 = 0;
+            arg0->unk28 = 0;
+            sndSeqPause(arg0->unk08);
+        } else {
+            arg0->unk28 = arg0->unk24 * 0x7F / arg0->unk20;
+            sndSeqVolume(arg0->unk02 * arg0->unk03 * arg0->unk1C * arg0->unk28 / 2048383, 0, arg0->unk08, 0);
+        }
+    } else if (arg0->unk20 < 0) {
+        if (++arg0->unk24 >= -arg0->unk20) {
+            arg0->unk20 = 0;
+            arg0->unk28 = 0x7F;
+        } else {
+            arg0->unk28 = arg0->unk24 * 0x7F / -arg0->unk20;
+        }
+        sndSeqVolume(arg0->unk02 * arg0->unk03 * arg0->unk1C * arg0->unk28 / 2048383, 0, arg0->unk08, 0);
+    }
+}
+
+static void msmMusFade(msmMusStruct00* arg0) {
+    if (arg0->unk04 != 2) {
+        return;
+    }
+    if (arg0->unk14 > 0) {
+        if (--arg0->unk18 == 0) {
+            if (arg0->unk04 != 0) {
+                arg0->unk14 = 0;
+                if (arg0->unk14 != 0) {
+                    arg0->unk18 = arg0->unk14;
+                    arg0->unk1C = 0x7F;
+                } else {
+                    sndSeqStop(arg0->unk08);
+                    arg0->unk04 = 1;
+                }
+            }
+        } else {
+            arg0->unk1C = arg0->unk18 * 0x7F / arg0->unk14;
+            sndSeqVolume(arg0->unk02 * arg0->unk03 * arg0->unk1C * arg0->unk28 / 2048383, 0, arg0->unk08, 0);
+        }
+    } else if (arg0->unk14 < 0) {
+        if (++arg0->unk18 >= -arg0->unk14) {
+            arg0->unk14 = 0;
+            arg0->unk1C = 0x7F;
+        } else {
+            arg0->unk1C = arg0->unk18 * 0x7F / -arg0->unk14;
+        }
+        sndSeqVolume(arg0->unk02 * arg0->unk03 * arg0->unk1C * arg0->unk28 / 2048383, 0, arg0->unk08, 0);
+    }
+}
+
+void msmMusFdoutEnd(void) {
+}
+
+void msmMusPeriodicProc(void) {
+    s32 var_r26;
+    msmMusStruct00* temp_r25;
+
+    mus.unk04 = mus.unk03 = 0;
+    for (var_r26 = 0; var_r26 < mus.unk02; var_r26++) {
+        temp_r25 = &mus.unk18[var_r26];
+        if (temp_r25->unk05 != 0) {
+            continue;
+        }
+        switch (temp_r25->unk04) {
+            case 1:
+            case 2:
+                if (sndSeqGetValid(temp_r25->unk08) == FALSE) {
+                    temp_r25->unk04 = 0;
+                }
+                break;
+        }
+        if (temp_r25->unk04 == 0) {
+            continue;
+        }
+        if (msmSysCheckBaseGroup(mus.unk0C[temp_r25->unk00].unk00) != 0) {
+            mus.unk04++;
+        } else {
+            mus.unk03++;
+        }
+        msmMusPauseFade(temp_r25);
+        if (temp_r25->unk04 == 2 && temp_r25->unk2C != 0) {
+            if (++temp_r25->unk30 >= temp_r25->unk2C) {
+                temp_r25->unk2C = 0;
+                temp_r25->unk02 = temp_r25->unk36;
+            } else {
+                temp_r25->unk02 = temp_r25->unk35 + temp_r25->unk30 * (temp_r25->unk36 - temp_r25->unk35) / temp_r25->unk2C;
+            }
+            sndSeqVolume(temp_r25->unk02 * temp_r25->unk03 * temp_r25->unk1C * temp_r25->unk28 / 2048383, 0, temp_r25->unk08, 0);
+        }
+        msmMusFade(temp_r25);
+    }
+}
+
+s32 msmMusGetMidiCtrl(int musNo, s32 channel, s32 ctrl) {
+    msmMusStruct00* temp_ptr;
+
+    if (musNo < 0 || musNo >= mus.unk02) {
+        return MSM_ERR_OUTOFMUS;
+    }
+    temp_ptr = &mus.unk18[musNo];
+    if (sndSeqGetValid(temp_ptr->unk08) == TRUE) {
+        return sndSeqGetMidiCtrl(temp_ptr->unk08, channel & 0xF, ctrl);
+    }
+    return 0;
+}
+
+s32 msmMusGetNumPlay(BOOL baseGrp) {
+    msmMusStruct02* mus_ptr = &mus;
+
+    switch (baseGrp) {
+        case FALSE:
+            return mus_ptr->unk03 + mus_ptr->unk04;
+        default:
+            return mus_ptr->unk03;
+    }
+}
+
+s32 msmMusGetStatus(int musNo) {
+    if (musNo < 0 || musNo >= mus.unk02) {
+        return MSM_ERR_OUTOFMUS;
+    }
+    return mus.unk18[musNo].unk04;
+}
+
+void msmMusSetMasterVolume(s32 arg0) {
+    sndMasterVolume(arg0 & 0x7F, 0, 1, 0);
+}
+
+s32 msmMusSetParam(s32 arg0, MSM_MUSPARAM* arg1) {
+    msmMusStruct00* temp_r31;
+
+    if (arg0 < 0 || arg0 >= mus.unk02) {
+        return MSM_ERR_OUTOFMUS;
+    }
+    temp_r31 = &mus.unk18[arg0];
+    if (arg1->flag & 2) {
+        temp_r31->unk2C = arg1->fadeSpeed / 15;
+        if (temp_r31->unk2C != 0) {
+            temp_r31->unk05 = 1;
+            temp_r31->unk30 = 0;
+            temp_r31->unk35 = temp_r31->unk02;
+            temp_r31->unk36 = arg1->vol & 0x7F;
+            temp_r31->unk05 = 0;
+        } else {
+            temp_r31->unk02 = arg1->vol & 0x7F;
+            sndSeqVolume(temp_r31->unk02 * temp_r31->unk03 * temp_r31->unk1C * temp_r31->unk28 / 2048383, 0, temp_r31->unk08, 0);
+        }
+    }
+    if (arg1->flag & 0x10) {
+        sndSeqSpeed(temp_r31->unk08, (arg1->speed << 8) / 100);
+    }
+    return 0;
+}
+
+void msmMusPauseAll(BOOL pause, s32 speed) {
+    s32 var_r27;
+    msmMusStruct00* temp_r26;
+
+    for (var_r27 = 0; var_r27 < mus.unk02; var_r27++) {
+        temp_r26 = &mus.unk18[var_r27];
+        if (temp_r26->unk04 != 0) {
+            temp_r26->unk05 = 1;
+            msmMusPauseSub(temp_r26, pause, speed);
+            temp_r26->unk05 = 0;
+        }
+    }
+}
+
+s32 msmMusPause(int musNo, BOOL pause, s32 speed) {
+    msmMusStruct00* temp_r31;
+
+    if (musNo < 0 || musNo >= mus.unk02) {
+        return MSM_ERR_OUTOFMUS;
+    }
+    temp_r31 = &mus.unk18[musNo];
+    temp_r31->unk05 = 1;
+    msmMusPauseSub(temp_r31, pause, speed);
+    temp_r31->unk05 = 0;
+    return 0;
+}
+
+void msmMusStopAll(BOOL checkGrp, s32 speed) {
+    s32 var_r28;
+    msmMusStruct00* temp_r27;
+
+    for (var_r28 = 0; var_r28 < mus.unk02; var_r28++) {
+        temp_r27 = &mus.unk18[var_r28];
+        if (temp_r27->unk04 == 0) {
+            continue;
+        }
+        temp_r27->unk05 = 1;
+        switch (checkGrp) {
+            case FALSE:
+                if (temp_r27->unk04 != 0) {
+                    temp_r27->unk14 = speed / 15;
+                    if (temp_r27->unk14 != 0) {
+                        temp_r27->unk18 = temp_r27->unk14;
+                        temp_r27->unk1C = 0x7F;
+                    } else {
+                        sndSeqStop(temp_r27->unk08);
+                        temp_r27->unk04 = 1;
+                    }
+                }
+                break;
+            default:
+                if (msmSysCheckBaseGroup(mus.unk0C[temp_r27->unk00].unk00) == 0 && temp_r27->unk04 != 0) {
+                    temp_r27->unk14 = speed / 15;
+                    if (temp_r27->unk14 != 0) {
+                        temp_r27->unk18 = temp_r27->unk14;
+                        temp_r27->unk1C = 0x7F;
+                    } else {
+                        sndSeqStop(temp_r27->unk08);
+                        temp_r27->unk04 = 1;
+                    }
+                }
+                break;
+        }
+        temp_r27->unk05 = 0;
+    }
+}
+
+s32 msmMusStop(int musNo, s32 speed) {
+    msmMusStruct00* temp_r30;
+
+    if (musNo < 0 || musNo >= mus.unk02) {
+        return MSM_ERR_OUTOFMUS;
+    }
+    temp_r30 = &mus.unk18[musNo];
+    temp_r30->unk05 = 1;
+    if (temp_r30->unk04 != 0) {
+        temp_r30->unk14 = speed / 15;
+        if (temp_r30->unk14 != 0) {
+            temp_r30->unk18 = temp_r30->unk14;
+            temp_r30->unk1C = 0x7F;
+        } else {
+            sndSeqStop(temp_r30->unk08);
+            temp_r30->unk04 = 1;
+        }
+    }
+    temp_r30->unk05 = 0;
+    return 0;
+}
+
+// TODO: https://decomp.me/scratch/PGpbJ
+// msmMusPlay
+
+// TODO: https://decomp.me/scratch/24daZ
+// msmMusInit
diff --git a/src/msm/msmse.c b/src/msm/msmse.c
index 9a70e62c..6582a572 100755
--- a/src/msm/msmse.c
+++ b/src/msm/msmse.c
@@ -486,7 +486,6 @@ s32 msmSeStop(int seNo, s32 speed) {
 // msmSePlay
 
 s32 msmSeInit(sysData* arg0, DVDFileInfo* arg1) {
-    unkSubStruct3* temp_r6;
     s32 temp_r29;
 
     se.unk04 = 0;
@@ -500,8 +499,7 @@ s32 msmSeInit(sysData* arg0, DVDFileInfo* arg1) {
     if ((se.unk0C = msmMemAlloc(arg0->unkC->unk34)) == NULL) {
         return MSM_ERR_OUTOFMEM;
     }
-    temp_r6 = arg0->unkC;
-    if (msmFioRead(arg1, se.unk0C, temp_r6->unk34, temp_r6->unk30) < 0) {
+    if (msmFioRead(arg1, se.unk0C, arg0->unkC->unk34, arg0->unkC->unk30) < 0) {
         return MSM_ERR_READFAIL;
     }
     temp_r29 = arg0->unk10->unk2 * sizeof(*se.unk10);
diff --git a/src/msm/msmsys.c b/src/msm/msmsys.c
index 740d682a..b3165461 100644
--- a/src/msm/msmsys.c
+++ b/src/msm/msmsys.c
@@ -267,7 +267,7 @@ s32 msmSysInit(MSM_INIT *init, MSM_ARAM *aram)
         msmFioClose(&sp10);
         return var_r26;
     }
-    var_r26 = msmMusInit(&sys.unk0, &sp10);
+    var_r26 = msmMusInit(&sys, &sp10);
     if (var_r26 != 0) {
         msmFioClose(&sp10);
         return var_r26;