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authorDavid Robillard <d@drobilla.net>2019-07-21 12:16:18 +0200
committerDavid Robillard <d@drobilla.net>2019-07-21 14:44:19 +0200
commit296055302b5f83f02336d47a42427e97561f1302 (patch)
treedc8edb57c121d0e29a4e3173ff21e9a2fb45815a
parentaa7fb0aad574531765bc18aeb78a034f499435d4 (diff)
Draw in pugl_test according to display time
-rw-r--r--pugl_test.c42
1 files changed, 21 insertions, 21 deletions
diff --git a/pugl_test.c b/pugl_test.c
index efcc4a8..b5a84e6 100644
--- a/pugl_test.c
+++ b/pugl_test.c
@@ -28,12 +28,15 @@
#include <stdio.h>
#include <string.h>
-static int quit = 0;
-static float xAngle = 0.0f;
-static float yAngle = 0.0f;
-static float dist = 10.0f;
-static double lastMouseX = 0.0;
-static double lastMouseY = 0.0;
+static bool continuous = false;
+static int quit = 0;
+static float xAngle = 0.0f;
+static float yAngle = 0.0f;
+static float dist = 10.0f;
+static double lastMouseX = 0.0;
+static double lastMouseY = 0.0;
+static float lastDrawTime = 0.0;
+static unsigned framesDrawn = 0;
static const float cubeVertices[] = {
-1.0f, -1.0f, -1.0f,
@@ -118,7 +121,11 @@ onReshape(PuglView* view, int width, int height)
static void
onDisplay(PuglView* view)
{
- (void)view;
+ const float thisTime = (float)puglGetTime(view);
+ if (continuous) {
+ xAngle = fmodf(xAngle + (thisTime - lastDrawTime) * 100.0f, 360.0f);
+ yAngle = fmodf(yAngle + (thisTime - lastDrawTime) * 100.0f, 360.0f);
+ }
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
@@ -136,6 +143,9 @@ onDisplay(PuglView* view)
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
+
+ lastDrawTime = thisTime;
+ ++framesDrawn;
}
static void
@@ -226,7 +236,6 @@ main(int argc, char** argv)
{
int samples = 0;
int doubleBuffer = PUGL_FALSE;
- bool continuous = false;
bool ignoreKeyRepeat = false;
bool resizable = false;
for (int i = 1; i < argc; ++i) {
@@ -280,17 +289,11 @@ main(int argc, char** argv)
puglShowWindow(view);
- const float startTime = (float)puglGetTime(view);
- float lastTime = startTime;
- float lastReportTime = startTime;
- unsigned frames = 0;
-
+ float lastReportTime = (float)puglGetTime(view);
while (!quit) {
const float thisTime = (float)puglGetTime(view);
if (continuous) {
- xAngle = fmodf(xAngle + (thisTime - lastTime) * 100.0f, 360.0f);
- yAngle = fmodf(yAngle + (thisTime - lastTime) * 100.0f, 360.0f);
puglPostRedisplay(view);
} else {
puglWaitForEvent(view);
@@ -299,17 +302,14 @@ main(int argc, char** argv)
puglProcessEvents(view);
if (continuous && thisTime > lastReportTime + 5) {
- const double fps = frames / (thisTime - lastReportTime);
+ const double fps = framesDrawn / (thisTime - lastReportTime);
fprintf(stderr,
"%u frames in %.0f seconds = %.3f FPS\n",
- frames, thisTime - lastReportTime, fps);
+ framesDrawn, thisTime - lastReportTime, fps);
lastReportTime = thisTime;
- frames = 0;
+ framesDrawn = 0;
}
-
- lastTime = thisTime;
- ++frames;
}
puglDestroy(view);