diff options
Diffstat (limited to 'src/glut/os2/glut_swap.cpp')
-rw-r--r-- | src/glut/os2/glut_swap.cpp | 67 |
1 files changed, 0 insertions, 67 deletions
diff --git a/src/glut/os2/glut_swap.cpp b/src/glut/os2/glut_swap.cpp deleted file mode 100644 index 4831b8eb35..0000000000 --- a/src/glut/os2/glut_swap.cpp +++ /dev/null @@ -1,67 +0,0 @@ - -/* Copyright (c) Mark J. Kilgard, 1994, 1997. */ - -/* This program is freely distributable without licensing fees - and is provided without guarantee or warrantee expressed or - implied. This program is -not- in the public domain. */ - -#include <stdio.h> -#include "glutint.h" - -GLint __glutFPS = 0; -GLint __glutSwapCount = 0; -GLint __glutSwapTime = 0; - -/* CENTRY */ -void GLUTAPIENTRY -glutSwapBuffers(void) -{ - GLUTwindow *window = __glutCurrentWindow; - - if (window->renderWin == window->win) { - if (__glutCurrentWindow->treatAsSingle) { - /* Pretend the double buffered window is single buffered, - so treat glutSwapBuffers as a no-op. */ - return; - } - } else { - if (__glutCurrentWindow->overlay->treatAsSingle) { - /* Pretend the double buffered overlay is single - buffered, so treat glutSwapBuffers as a no-op. */ - return; - } - } - - /* For the MESA_SWAP_HACK. */ - window->usedSwapBuffers = 1; - - SWAP_BUFFERS_LAYER(__glutCurrentWindow); - - /* I considered putting the window being swapped on the - GLUT_FINISH_WORK work list because you could call - glutSwapBuffers from an idle callback which doesn't call - __glutSetWindow which normally adds indirect rendering - windows to the GLUT_FINISH_WORK work list. Not being put - on the list could lead to the buffering up of multiple - redisplays and buffer swaps and hamper interactivity. I - consider this an application bug due to not using - glutPostRedisplay to trigger redraws. If - glutPostRedisplay were used, __glutSetWindow would be - called and a glFinish to throttle buffering would occur. */ - - if (__glutFPS) { - GLint t = glutGet(GLUT_ELAPSED_TIME); - __glutSwapCount++; - if (__glutSwapTime == 0) - __glutSwapTime = t; - else if (t - __glutSwapTime > __glutFPS) { - float time = 0.001 * (t - __glutSwapTime); - float fps = (float) __glutSwapCount / time; - fprintf(stderr, "GLUT: %d frames in %.2f seconds = %.2f FPS\n", - __glutSwapCount, time, fps); - __glutSwapTime = t; - __glutSwapCount = 0; - } - } -} -/* ENDCENTRY */ |