workbench/devs/monitors/Compositor/compositor_startup.c

   1 #include <dos/dosextens.h>
   2 #include <exec/libraries.h>
   3 #include <oop/ifmeta.h>
   4 #include <oop/oop.h>
   5
   6 #include <proto/exec.h>
   7 #include <proto/graphics.h>
   8 #include <proto/oop.h>
   9
  10 #include "compositor_intern.h"
  11
  12 /* Libraries */
  13 struct Library *OOPBase;
  14 struct Library *UtilityBase;
  15
  16 /* Attr bases */
  17 OOP_AttrBase HiddPixFmtAttrBase;
  18 OOP_AttrBase HiddSyncAttrBase;
  19 OOP_AttrBase HiddBitMapAttrBase;
  20 OOP_AttrBase HiddGCAttrBase;
  21 OOP_AttrBase HiddCompositorAttrBase;
  22
  23 const TEXT version[] = "$VER: Compositor 41.1 (8.10.2013)\n";
  24
  25 static const struct OOP_ABDescr attrbases[] =
  26 {
  27     { IID_Hidd_PixFmt,          &HiddPixFmtAttrBase },
  28     { IID_Hidd_Sync,            &HiddSyncAttrBase },
  29     { IID_Hidd_BitMap,          &HiddBitMapAttrBase },
  30     { IID_Hidd_GC,              &HiddGCAttrBase },
  31     { IID_Hidd_Compositor,      &HiddCompositorAttrBase },
  32     { NULL, NULL }
  33 };
  34
  35 static OOP_Class *InitClass(void)
  36 {
  37     OOP_AttrBase MetaAttrBase = OOP_ObtainAttrBase(IID_Meta);
  38     OOP_Class *cl = NULL;
  39
  40     struct TagItem Compositor_tags[] =
  41     {
  42         {aMeta_SuperID         , (IPTR)CLID_Root             },
  43         {aMeta_InterfaceDescr, (IPTR)Compositor_ifdescr     },
  44         {aMeta_InstSize         , sizeof(struct HIDDCompositorData)},
  45         {aMeta_ID         , (IPTR)CLID_Hidd_Compositor     },
  46         {TAG_DONE         , 0                 }
  47     };
  48
  49     if (MetaAttrBase == 0)
  50         return NULL;
  51
  52     cl = OOP_NewObject(NULL, CLID_HiddMeta, Compositor_tags);
  53     if (cl)
  54         OOP_AddClass(cl);
  55
  56     OOP_ReleaseAttrBase(IID_Meta);
  57     return cl;
  58 }
  59
  60 int __nocommandline = 1;
  61
  62 int main(void)
  63 {
  64     int ret = RETURN_FAIL;
  65
  66     /*
  67      * Open these libraries manually because we don't want them to be
  68      * automatically closed when we stay resident.
  69      */
  70     UtilityBase = OpenLibrary("utility.library", 0);
  71     if (UtilityBase)
  72     {
  73         OOPBase = OpenLibrary("oop.library", 42);
  74         if (OOPBase)
  75         {
  76             if (OOP_ObtainAttrBases(attrbases))
  77             {
  78                 if (OOP_FindClass(CLID_Hidd_Compositor))
  79                 {
  80                     /* Double-starting is a valid operation. */
  81                     ret = RETURN_OK;
  82                 }
  83                 else
  84                 {
  85                     OOP_Class *cl = InitClass();
  86
  87                     if (cl)
  88                     {
  89                         /*
  90                          * Yes, composer is not a real display driver. It has totally different API.
  91                          * AddDisplayDriverA() knows this.
  92                          */
  93                         ULONG err = AddDisplayDriverA(cl, NULL, NULL);
  94
  95                         if (!err)
  96                         {
  97                             /* Stay resident */
  98                             struct Process *me = (struct Process *) FindTask(NULL);
  99
 100                             if (me->pr_CLI)
 101                             {
 102                                 struct CommandLineInterface *cli = BADDR(me->pr_CLI);
 103
 104                                 cli->cli_Module = BNULL;
 105                             }
 106                             else
 107                                 me->pr_SegList = BNULL;
 108
 109                             /* Don't close our libraries and release attrbases. The HIDD needs them. */
 110
 111                             return RETURN_OK;
 112                         }
 113                     }
 114                 }
 115             }
 116             OOP_ReleaseAttrBases(attrbases);
 117             CloseLibrary(OOPBase);
 118         }
 119         CloseLibrary(UtilityBase);
 120     }
 121
 122     return ret;
 123 }