Fix the vsync menu option so that it actually works.

Variables at global scope which share a name tend to actually be the same variable. Not good when you pass such a variable to function that immediately returns if the passed parameter (the variable) equals said variable (itself).

git-svn-id: https://svn.eduke32.com/eduke32@4090 1a8010ca-5511-0410-912e-c29ae57300e0

polymer/eduke32/build/include/baselayer.h

@@ -102,6 +102,7 @@ extern int32_t qsetmode;
 
 int32_t initsystem(void);
 void uninitsystem(void);
+void system_getcvars(void);
 
 extern int32_t flushlogwindow;
 void initprintf(const char *, ...) ATTRIBUTE((format(printf,1,2)));

polymer/eduke32/build/src/build.c

@@ -686,6 +686,8 @@ int32_t app_main(int32_t argc, const char **argv)
         // executed once per init, but after setgamemode so that OSD has the right width
         OSD_Exec("m32_autoexec.cfg");
 
+        system_getcvars();
+
         overheadeditor();
         keystatus[buildkeys[BK_MODE2D_3D]] = 0;
 
@@ -710,6 +712,8 @@ int32_t app_main(int32_t argc, const char **argv)
         // executed once per init, but after setgamemode so that OSD has the right width
         OSD_Exec("m32_autoexec.cfg");
 
+        system_getcvars();
+
         setbrightness(GAMMA_CALC,0,0);
     }
 

polymer/eduke32/build/src/engine.c

@@ -10036,6 +10036,8 @@ skip_reading_mapbin:
         append_ext_UNSAFE(fn, ".cfg");
 
         OSD_Exec(fn);
+
+        system_getcvars();
     }
 
     return finish_loadboard(dapos, dacursectnum, numsprites, myflags);

polymer/eduke32/build/src/polymost.c

@@ -91,6 +91,7 @@ extern char textfont[2048], smalltextfont[2048];
 
 int32_t rendmode=0;
 int32_t usemodels=1, usehightile=1;
+int32_t vsync=0;
 
 #include <math.h> //<-important!
 typedef struct { float x, cy[2], fy[2]; int32_t tag; int16_t n, p, ctag, ftag; } vsptyp;

polymer/eduke32/build/src/sdlayer.c

@@ -89,7 +89,7 @@ extern int32_t curbrightness, gammabrightness;
 // OpenGL stuff
 char nogl=0;
 #endif
-int32_t vsync=0;
+static int32_t vsync_render=0;
 
 // last gamma, contrast, brightness
 static float lastvidgcb[3];
@@ -273,11 +273,16 @@ int32_t main(int32_t argc, char *argv[])
 #ifdef USE_OPENGL
 void setvsync(int32_t sync)
 {
-    if (vsync == sync) return;
-    vsync = sync;
+    if (vsync_render == sync) return;
+    vsync_render = sync;
+# if (SDL_MAJOR_VERSION == 1 && SDL_MINOR_VERSION < 3)
     resetvideomode();
     if (setgamemode(fullscreen,xdim,ydim,bpp))
         OSD_Printf("restartvid: Reset failed...\n");
+# else
+    if (sdl_context)
+        SDL_GL_SetSwapInterval(vsync_render);
+# endif
 }
 #endif
 
@@ -472,6 +477,15 @@ void uninitsystem(void)
 }
 
 
+//
+// system_getcvars() -- propagate any cvars that are read post-initialization
+//
+void system_getcvars(void)
+{
+    setvsync(vsync);
+}
+
+
 //
 // initprintf() -- prints a string to the intitialization window
 //
@@ -1337,7 +1351,7 @@ int32_t setvideomode(int32_t x, int32_t y, int32_t c, int32_t fs)
             { SDL_GL_MULTISAMPLESAMPLES, glmultisample },
             { SDL_GL_STENCIL_SIZE, 1 },
 # if (SDL_MAJOR_VERSION == 1 && SDL_MINOR_VERSION < 3)
-            { SDL_GL_SWAP_CONTROL, vsync },
+            { SDL_GL_SWAP_CONTROL, vsync_render },
 # endif
         };
 
@@ -1368,7 +1382,7 @@ int32_t setvideomode(int32_t x, int32_t y, int32_t c, int32_t fs)
                so we have to create a new surface in a different format first
                to force the surface we WANT to be recreated instead of reused. */
 # if (SDL_MAJOR_VERSION == 1 && SDL_MINOR_VERSION < 3)
-            if (vsync != ovsync)
+            if (vsync_render != ovsync)
             {
                 if (sdl_surface)
                 {
@@ -1376,7 +1390,7 @@ int32_t setvideomode(int32_t x, int32_t y, int32_t c, int32_t fs)
                     sdl_surface = SDL_SetVideoMode(1, 1, 8, SDL_NOFRAME | SURFACE_FLAGS | ((fs&1)?SDL_FULLSCREEN:0));
                     SDL_FreeSurface(sdl_surface);
                 }
-                ovsync = vsync;
+                ovsync = vsync_render;
             }
 # endif
 
@@ -1411,7 +1425,7 @@ int32_t setvideomode(int32_t x, int32_t y, int32_t c, int32_t fs)
                 destroy_window_resources();
                 return -1;
             }
-            SDL_GL_SetSwapInterval(vsync);
+            SDL_GL_SetSwapInterval(vsync_render);
 #endif
 
 #ifdef _WIN32

polymer/eduke32/build/src/winlayer.c

@@ -144,7 +144,7 @@ int32_t bpp=0;
 int32_t bytesperline=0;
 int32_t lockcount=0;
 int32_t glcolourdepth=32;
-int32_t vsync=0;
+static int32_t vsync_render=0;
 uint32_t maxrefreshfreq=60;
 intptr_t frameplace=0;
 char modechange=1;
@@ -615,6 +615,14 @@ void uninitsystem(void)
 }
 
 
+//
+// system_getcvars() -- propagate any cvars that are read post-initialization
+//
+void system_getcvars(void)
+{
+    setvsync(vsync);
+}
+
 //
 // initprintf() -- prints a string to the intitialization window
 //
@@ -1703,7 +1711,7 @@ int32_t setvideomode(int32_t x, int32_t y, int32_t c, int32_t fs)
     }
 
 #ifdef USE_OPENGL
-    if (hGLWindow && glinfo.vsync) bwglSwapIntervalEXT(vsync);
+    if (hGLWindow && glinfo.vsync) bwglSwapIntervalEXT(vsync_render);
 #endif
     if (inp) AcquireInputDevices(1);
     modechange=1;
@@ -1735,10 +1743,10 @@ void setvsync(int32_t sync)
 {
     if (!glinfo.vsync)
     {
-        vsync = 0;
+        vsync_render = 0;
         return;
     }
-    vsync = sync;
+    vsync_render = sync;
     bwglSwapIntervalEXT(sync);
 }
 

polymer/eduke32/source/game.c

@@ -11643,6 +11643,8 @@ int32_t app_main(int32_t argc, const char **argv)
 
     OSD_Exec("autoexec.cfg");
 
+    system_getcvars();
+
     if (g_networkMode != NET_DEDICATED_SERVER)
     {
         if (setgamemode(ud.config.ScreenMode,ud.config.ScreenWidth,ud.config.ScreenHeight,ud.config.ScreenBPP) < 0)