added a few more CHECKGLERROR lines, and the possibility of not having

qglPolygonStipple

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@9530 d7cf8633-e32d-0410-b094-e92efae38249

diff --git a/cl_screen.c b/cl_screen.c
index 80cf00362fcebecfbef1a1d9157faed3607f5932..021487cfd29f3f54814fa7c607e223483027c013 100644 (file)
--- a/cl_screen.c
+++ b/cl_screen.c
@@ -2091,28 +2091,34 @@ void CL_UpdateScreen(void)
        f = pow((float)cl_updatescreen_quality, cl_minfps_qualitypower.value) * cl_minfps_qualityscale.value;
        r_refdef.view.quality = bound(cl_minfps_qualitymin.value, f, cl_minfps_qualitymax.value);
 
-       if(scr_stipple.integer)
+       if (qglPolygonStipple)
        {
-               GLubyte stipple[128];
-               int i, s, width, parts;
-               static int frame = 0;
-               ++frame;
-
-               s = scr_stipple.integer;
-               parts = (s & 007);
-               width = (s & 070) >> 3;
-
-               qglEnable(GL_POLYGON_STIPPLE); // 0x0B42
-               for(i = 0; i < 128; ++i)
+               if(scr_stipple.integer)
                {
-                       int line = i/4;
-                       stipple[i] = (((line >> width) + frame) & ((1 << parts) - 1)) ? 0x00 : 0xFF;
+                       GLubyte stipple[128];
+                       int i, s, width, parts;
+                       static int frame = 0;
+                       ++frame;
+       
+                       s = scr_stipple.integer;
+                       parts = (s & 007);
+                       width = (s & 070) >> 3;
+       
+                       qglEnable(GL_POLYGON_STIPPLE);CHECKGLERROR // 0x0B42
+                       for(i = 0; i < 128; ++i)
+                       {
+                               int line = i/4;
+                               stipple[i] = (((line >> width) + frame) & ((1 << parts) - 1)) ? 0x00 : 0xFF;
+                       }
+                       qglPolygonStipple(stipple);CHECKGLERROR
+               }
+               else
+               {
+                       qglDisable(GL_POLYGON_STIPPLE);CHECKGLERROR
                }
-               qglPolygonStipple(stipple);
        }
-       else
-               qglDisable(GL_POLYGON_STIPPLE);
 
+       CHECKGLERROR
        if (R_Stereo_Active())
        {
                matrix4x4_t originalmatrix = r_refdef.view.matrix;
@@ -2157,11 +2163,13 @@ void CL_UpdateScreen(void)
        }
        else
                SCR_DrawScreen();
+       CHECKGLERROR
 
        SCR_CaptureVideo();
 
        // quality adjustment according to render time
-       qglFlush();
+       CHECKGLERROR
+       qglFlush(); // FIXME: should we really be using qglFlush here?
        cl_updatescreen_rendertime += ((Sys_DoubleTime() - rendertime1) - cl_updatescreen_rendertime) * bound(0, cl_minfps_fade.value, 1);
        if (cl_minfps.value > 0 && cl_updatescreen_rendertime > 0 && !cls.timedemo && (!cls.capturevideo.active || !cls.capturevideo.realtime))
                cl_updatescreen_quality = 1 / (cl_updatescreen_rendertime * cl_minfps.value);