r_modules.c

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#include "quakedef.h"
 
#define MAXRENDERMODULES 20
 
typedef struct rendermodule_s
{
    int active; // set by start, cleared by shutdown
    const char *name;
    void(*start)(void);
    void(*shutdown)(void);
    void(*newmap)(void);
    void(*devicelost)(void);
    void(*devicerestored)(void);
}
rendermodule_t;
 
rendermodule_t rendermodule[MAXRENDERMODULES];
 
void R_Modules_Init(void)
{
    Cmd_AddCommand(CF_CLIENT, "r_restart", R_Modules_Restart_f, "restarts renderer");
}
 
void R_RegisterModule(const char *name, void(*start)(void), void(*shutdown)(void), void(*newmap)(void), void(*devicelost)(void), void(*devicerestored)(void))
{
    int i;
    for (i = 0;i < MAXRENDERMODULES;i++)
    {
        if (rendermodule[i].name == NULL)
            break;
        if (!strcmp(name, rendermodule[i].name))
        {
            Con_Printf("R_RegisterModule: module \"%s\" registered twice\n", name);
            return;
        }
    }
    if (i >= MAXRENDERMODULES)
        Sys_Error("R_RegisterModule: ran out of renderer module slots (%i)", MAXRENDERMODULES);
    rendermodule[i].active = 0;
    rendermodule[i].name = name;
    rendermodule[i].start = start;
    rendermodule[i].shutdown = shutdown;
    rendermodule[i].newmap = newmap;
    rendermodule[i].devicelost = devicelost;
    rendermodule[i].devicerestored = devicerestored;
}
 
void R_Modules_Start(void)
{
    int i;
    for (i = 0;i < MAXRENDERMODULES;i++)
    {
        if (rendermodule[i].name == NULL)
            continue;
        if (rendermodule[i].active)
        {
            Con_Printf ("R_Modules_Start: module \"%s\" already active\n", rendermodule[i].name);
            continue;
        }
        Con_DPrintf("Starting render module \"%s\"\n", rendermodule[i].name);
        rendermodule[i].active = 1;
        rendermodule[i].start();
    }
}
 
void R_Modules_Shutdown(void)
{
    int i;
    // shutdown in reverse
    for (i = MAXRENDERMODULES - 1;i >= 0;i--)
    {
        if (rendermodule[i].name == NULL)
            continue;
        if (!rendermodule[i].active)
            continue;
        Con_DPrintf("Stopping render module \"%s\"\n", rendermodule[i].name);
        rendermodule[i].active = 0;
        rendermodule[i].shutdown();
    }
}
 
void R_Modules_Restart_f(cmd_state_t *cmd)
{
    CL_StartVideo();
    Con_Print("Restarting renderer\n");
    SCR_BeginLoadingPlaque(false);
    R_Modules_Shutdown();
    R_Modules_Start();
}
 
void R_Modules_NewMap(void)
{
    int i;
    R_SkinFrame_PrepareForPurge();
    for (i = 0;i < MAXRENDERMODULES;i++)
    {
        if (rendermodule[i].name == NULL)
            continue;
        if (!rendermodule[i].active)
            continue;
        rendermodule[i].newmap();
    }
    R_SkinFrame_Purge();
}
 
void R_Modules_DeviceLost(void)
{
    int i;
    for (i = 0;i < MAXRENDERMODULES;i++)
    {
        if (rendermodule[i].name == NULL)
            continue;
        if (!rendermodule[i].active)
            continue;
        if (!rendermodule[i].devicelost)
            continue;
        rendermodule[i].devicelost();
    }
}
 
 
void R_Modules_DeviceRestored(void)
{
    int i;
    for (i = 0;i < MAXRENDERMODULES;i++)
    {
        if (rendermodule[i].name == NULL)
            continue;
        if (!rendermodule[i].active)
            continue;
        if (!rendermodule[i].devicerestored)
            continue;
        rendermodule[i].devicerestored();
    }
}