latest DOS updates (Daniel Borca)

1 files changed, 17 insertions, 1 deletions

diff --git a/src/glut/dos/window.c b/src/glut/dos/window.c
index a7a7d9ca59b..cad4726936f 100644
--- a/src/glut/dos/window.c
+++ b/src/glut/dos/window.c
@@ -27,12 +27,15 @@
  */

 

 

+#include <stdio.h>

+

 #include "glutint.h"

 #include "GL/dmesa.h"

 

 

 

 GLUTwindow *g_curwin;

+static GLuint swaptime, swapcount;

 

 static DMesaVisual  visual  = NULL;

 static DMesaContext context = NULL;

@@ -59,7 +62,6 @@ static void clean (void)
 int APIENTRY glutCreateWindow (const char *title)

 {

  int i;

- GLint screen_size[2];

  int m8width = (g_init_w + 7) & ~7;

 

  if (!visual) {

@@ -154,6 +156,20 @@ void APIENTRY glutSwapBuffers (void)
  } else {

     DMesaSwapBuffers(g_curwin->buffer);

  }

+

+ if (g_fps) {

+    GLint t = glutGet(GLUT_ELAPSED_TIME);

+    swapcount++;

+    if (swaptime == 0)

+       swaptime = t;

+    else if (t - swaptime > g_fps) {

+       double time = 0.001 * (t - swaptime);

+       double fps = (double)swapcount / time;

+       fprintf(stderr, "GLUT: %d frames in %.2f seconds = %.2f FPS\n", swapcount, time, fps);

+       swaptime = t;

+       swapcount = 0;

+    }

+ }

 }