opengles emulator: added FPS statistics printout
Make the renderer print FPS statistics every 1 second.
Need to set SHOW_FPS_STATS=1
Change-Id: I69e8c43a779e685ae0b34974d1ef33ad75e7a7e4
diff --git a/tools/emulator/opengl/host/libs/libOpenglRender/FrameBuffer.cpp b/tools/emulator/opengl/host/libs/libOpenglRender/FrameBuffer.cpp
index 50ee9cb..a670136 100644
--- a/tools/emulator/opengl/host/libs/libOpenglRender/FrameBuffer.cpp
+++ b/tools/emulator/opengl/host/libs/libOpenglRender/FrameBuffer.cpp
@@ -21,6 +21,7 @@
#include "GL2Dispatch.h"
#include "ThreadInfo.h"
#include <stdio.h>
+#include "TimeUtils.h"
FrameBuffer *FrameBuffer::s_theFrameBuffer = NULL;
HandleType FrameBuffer::s_nextHandle = 0;
@@ -352,8 +353,11 @@
m_prevReadSurf(EGL_NO_SURFACE),
m_prevDrawSurf(EGL_NO_SURFACE),
m_subWin(NULL),
- m_subWinDisplay(NULL)
+ m_subWinDisplay(NULL),
+ m_statsNumFrames(0),
+ m_statsStartTime(0LL)
{
+ m_fpsStats = getenv("SHOW_FPS_STATS") != NULL;
}
FrameBuffer::~FrameBuffer()
@@ -653,6 +657,21 @@
}
ret = (*c).second->post();
if (ret) {
+
+ //
+ // output FPS statistics
+ //
+ if (m_fpsStats) {
+ long long currTime = GetCurrentTimeMS();
+ m_statsNumFrames++;
+ if (currTime - m_statsStartTime >= 1000) {
+ float dt = (float)(currTime - m_statsStartTime) / 1000.0f;
+ printf("FPS: %5.3f\n", (float)m_statsNumFrames / dt);
+ m_statsStartTime = currTime;
+ m_statsNumFrames = 0;
+ }
+ }
+
s_egl.eglSwapBuffers(m_eglDisplay, m_eglSurface);
}
unbind_locked();
diff --git a/tools/emulator/opengl/host/libs/libOpenglRender/FrameBuffer.h b/tools/emulator/opengl/host/libs/libOpenglRender/FrameBuffer.h
index d2e7730..cfefcee 100644
--- a/tools/emulator/opengl/host/libs/libOpenglRender/FrameBuffer.h
+++ b/tools/emulator/opengl/host/libs/libOpenglRender/FrameBuffer.h
@@ -106,5 +106,9 @@
EGLSurface m_prevDrawSurf;
EGLNativeWindowType m_subWin;
EGLNativeDisplayType m_subWinDisplay;
+
+ int m_statsNumFrames;
+ long long m_statsStartTime;
+ bool m_fpsStats;
};
#endif