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Add fps output

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This commit is contained in:
Keith Whitwell 2004-04-23 14:06:02 +00:00
parent 031e86b597
commit 180e28e6d4
1 changed files with 16 additions and 0 deletions
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16
progs/demos/arbfplight.c
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@ -25,6 +25,9 @@ static GLboolean Anim = GL_TRUE;
static GLboolean Wire = GL_FALSE;
static GLboolean PixelLight = GL_TRUE;
static GLint T0 = 0;
static GLint Frames = 0;
static GLfloat Xrot = 0, Yrot = 0;
static PFNGLPROGRAMLOCALPARAMETER4FVARBPROC glProgramLocalParameter4fvARB_func;
@ -68,6 +71,19 @@ static void Redisplay( void )
glPopMatrix();
glutSwapBuffers();
Frames++;
if (Anim) {
GLint t = glutGet(GLUT_ELAPSED_TIME);
if (t - T0 >= 5000) {
GLfloat seconds = (t - T0) / 1000.0;
GLfloat fps = Frames / seconds;
printf("%d frames in %6.3f seconds = %6.3f FPS\n", Frames, seconds, fps);
T0 = t;
Frames = 0;
}
}
}