xCM work

Author: escape209

src/SB/Core/x/xCM.cpp

@@ -1,3 +1,114 @@
 #include "xCM.h"
+#include "xEvent.h"
 
 #include <types.h>
+
+volatile static F32 credits_time;
+static xCreditsData* credits_data;
+static U32 credits_parentID;
+F32 dtscale;
+
+void xCMprep(xCreditsData* data)
+{
+    /*
+        data seems to point to this general structure:
+        0x00 - xCMheader
+        0x18 - xCMcredits
+        0x50 - xCMpreset* presets_array[xCMcredits.num_presets]
+             - xCMhunk* hunk_array[?]
+    */
+
+    char* dp; // In the DWARF. Don't know what this is used for.
+    xCMheader* hdr = (xCMheader*)data;
+
+    if (hdr->magic != 0xBEEEEEEF)
+    {
+        return;
+    }
+
+    xCMcredits* cp = (xCMcredits *)(&hdr[1]);
+    while (((int)cp - (int)data) < hdr->total_size)
+    {
+        xCMpreset* pp = (xCMpreset*)(&cp[1]);
+        xCMhunk* hp = (xCMhunk*)(&pp[cp->num_presets]);
+
+        for ( ; (U32)((int)hp - (int)cp) < cp->credits_size; hp = (xCMhunk*)((int)hp + hp->hunk_size))
+        {
+            switch (pp[hp->preset].align)
+            {
+                case 0:
+                case 1:
+                case 2:
+                case 3:
+
+                if (hdr->state == 0)
+                {
+                    if (hp->text1 != NULL)
+                    {
+                        hp->text1 -= (int)data;
+                    }
+                    if (hp->text2 != NULL)
+                    {
+                        hp->text2 -= (int)data;
+                    }
+                }
+                else
+                {
+                    if (hp->text1 != NULL)
+                    {
+                        hp->text1 += (int)data;
+                    }
+                    if (hp->text2 != NULL)
+                    {
+                        hp->text2 += (int)data;
+                    }
+                }
+                break;
+            }
+        }
+        cp = (xCMcredits*)hp;
+    }
+
+    hdr->state = hdr->state == 0 ? 1 : 0;
+}
+
+void xCMupdate(F32 time)
+{
+    if (credits_data != 0)
+    {
+        credits_time += (time * dtscale);
+        if (credits_time >= *(F32*)((int)&credits_data->dummy + 0x10))
+        {
+            xCMstop();
+        }
+    }
+}
+
+void xCMrender()
+{
+    xCMrender(credits_time, credits_data);
+}
+
+void xCMstart(xCreditsData* data, F32 time, xBase* parent)
+{
+    if ((credits_data = data) != NULL)
+    {
+        credits_time = 0.0f;
+
+        if (parent != NULL)
+        {
+            credits_parentID = parent->id;
+        }
+    }
+}
+
+// Equivalent: scheduling
+void xCMstop()
+{
+    credits_time = 10000.0f;
+    credits_data = NULL;
+    if (credits_parentID != 0)
+    {
+        zEntEvent(credits_parentID, 0x212);
+    }
+}

src/SB/Core/x/xCM.h

@@ -9,8 +9,87 @@ struct xCreditsData
     U32 dummy;
 };
 
+class xCMheader
+{
+    // total size: 0x18
+public:
+    unsigned int magic; // offset 0x0, size 0x4
+    unsigned int version; // offset 0x4, size 0x4
+    unsigned int crdID; // offset 0x8, size 0x4
+    unsigned int state; // offset 0xC, size 0x4
+    float total_time; // offset 0x10, size 0x4
+    unsigned int total_size; // offset 0x14, size 0x4
+};
+
+class sxy
+{
+    // total size: 0x8
+public:
+    float x; // offset 0x0, size 0x4
+    float y; // offset 0x4, size 0x4
+};
+
+class fade
+{
+    // total size: 0x8
+public:
+    float start; // offset 0x0, size 0x4
+    float end; // offset 0x4, size 0x4
+};
+
+class xCMtextbox
+{
+    // total size: 0x20
+public:
+    unsigned int font; // offset 0x0, size 0x4
+    class iColor_tag color; // offset 0x4, size 0x4
+    class sxy char_size; // offset 0x8, size 0x8
+    class sxy char_spacing; // offset 0x10, size 0x8
+    class sxy box; // offset 0x18, size 0x8
+};
+
+class xCMpreset
+{
+    // total size: 0x4C
+public:
+    unsigned short num; // offset 0x0, size 0x2
+    unsigned short align; // offset 0x2, size 0x2
+    float delay; // offset 0x4, size 0x4
+    float innerspace; // offset 0x8, size 0x4
+    class xCMtextbox box[2]; // offset 0xC, size 0x40
+};
+
+class xCMhunk
+{
+    // total size: 0x18
+public:
+    unsigned int hunk_size; // offset 0x0, size 0x4
+    unsigned int preset; // offset 0x4, size 0x4
+    float t0; // offset 0x8, size 0x4
+    float t1; // offset 0xC, size 0x4
+    char * text1; // offset 0x10, size 0x4
+    char * text2; // offset 0x14, size 0x4
+};
+
+class xCMcredits
+{
+    // total size: 0x38
+public:
+    unsigned int credits_size; // offset 0x0, size 0x4
+    float len; // offset 0x4, size 0x4
+    unsigned int flags; // offset 0x8, size 0x4
+    sxy in; // offset 0xC, size 0x8
+    sxy out; // offset 0x14, size 0x8
+    float scroll_rate; // offset 0x1C, size 0x4
+    float lifetime; // offset 0x20, size 0x4
+    fade fin; // offset 0x24, size 0x8
+    fade fout; // offset 0x2C, size 0x8
+    unsigned int num_presets; // offset 0x34, size 0x4
+};
+
 void xCMupdate(F32 dt);
 void xCMrender();
+void xCMrender(F32 time, xCreditsData* data);
 void xCMstart(xCreditsData* data, F32, xBase* parent);
 void xCMstop();