r_modules.c

   1
   2 #include "quakedef.h"
   3
   4 #define MAXRENDERMODULES 20
   5
   6 typedef struct rendermodule_s
   7 {
   8         int active; // set by start, cleared by shutdown
   9         const char *name;
  10         void(*start)(void);
  11         void(*shutdown)(void);
  12         void(*newmap)(void);
  13         void(*devicelost)(void);
  14         void(*devicerestored)(void);
  15 }
  16 rendermodule_t;
  17
  18 rendermodule_t rendermodule[MAXRENDERMODULES];
  19
  20 void R_Modules_Init(void)
  21 {
  22         Cmd_AddCommand("r_restart", R_Modules_Restart, "restarts renderer");
  23 }
  24
  25 void R_RegisterModule(const char *name, void(*start)(void), void(*shutdown)(void), void(*newmap)(void), void(*devicelost)(void), void(*devicerestored)(void))
  26 {
  27         int i;
  28         for (i = 0;i < MAXRENDERMODULES;i++)
  29         {
  30                 if (rendermodule[i].name == NULL)
  31                         break;
  32                 if (!strcmp(name, rendermodule[i].name))
  33                 {
  34                         Con_Printf("R_RegisterModule: module \"%s\" registered twice\n", name);
  35                         return;
  36                 }
  37         }
  38         if (i >= MAXRENDERMODULES)
  39                 Sys_Error("R_RegisterModule: ran out of renderer module slots (%i)", MAXRENDERMODULES);
  40         rendermodule[i].active = 0;
  41         rendermodule[i].name = name;
  42         rendermodule[i].start = start;
  43         rendermodule[i].shutdown = shutdown;
  44         rendermodule[i].newmap = newmap;
  45         rendermodule[i].devicelost = devicelost;
  46         rendermodule[i].devicerestored = devicerestored;
  47 }
  48
  49 void R_Modules_Start(void)
  50 {
  51         int i;
  52         for (i = 0;i < MAXRENDERMODULES;i++)
  53         {
  54                 if (rendermodule[i].name == NULL)
  55                         continue;
  56                 if (rendermodule[i].active)
  57                 {
  58                         Con_Printf ("R_StartModules: module \"%s\" already active\n", rendermodule[i].name);
  59                         continue;
  60                 }
  61                 rendermodule[i].active = 1;
  62                 rendermodule[i].start();
  63         }
  64 }
  65
  66 void R_Modules_Shutdown(void)
  67 {
  68         int i;
  69         // shutdown in reverse
  70         for (i = MAXRENDERMODULES - 1;i >= 0;i--)
  71         {
  72                 if (rendermodule[i].name == NULL)
  73                         continue;
  74                 if (!rendermodule[i].active)
  75                         continue;
  76                 rendermodule[i].active = 0;
  77                 rendermodule[i].shutdown();
  78         }
  79 }
  80
  81 void R_Modules_Restart(void)
  82 {
  83         Host_StartVideo();
  84         Con_Print("restarting renderer\n");
  85         R_Modules_Shutdown();
  86         R_Modules_Start();
  87 }
  88
  89 void R_Modules_NewMap(void)
  90 {
  91         int i;
  92         R_SkinFrame_PrepareForPurge();
  93         for (i = 0;i < MAXRENDERMODULES;i++)
  94         {
  95                 if (rendermodule[i].name == NULL)
  96                         continue;
  97                 if (!rendermodule[i].active)
  98                         continue;
  99                 rendermodule[i].newmap();
 100         }
 101         R_SkinFrame_Purge();
 102 }
 103
 104 void R_Modules_DeviceLost(void)
 105 {
 106         int i;
 107         for (i = 0;i < MAXRENDERMODULES;i++)
 108         {
 109                 if (rendermodule[i].name == NULL)
 110                         continue;
 111                 if (!rendermodule[i].active)
 112                         continue;
 113                 if (!rendermodule[i].devicelost)
 114                         continue;
 115                 rendermodule[i].devicelost();
 116         }
 117 }
 118
 119
 120 void R_Modules_DeviceRestored(void)
 121 {
 122         int i;
 123         for (i = 0;i < MAXRENDERMODULES;i++)
 124         {
 125                 if (rendermodule[i].name == NULL)
 126                         continue;
 127                 if (!rendermodule[i].active)
 128                         continue;
 129                 if (!rendermodule[i].devicerestored)
 130                         continue;
 131                 rendermodule[i].devicerestored();
 132         }
 133 }
 134