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hardware/msm7k/libgralloc-qsd8k - framebuffer.cpp fps calaculation for a time interval

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Change-Id: I11ee7973e192e5cc3cf5086b865632eec46eaf8c
This commit is contained in:
Rajulu Ponnada 2011-10-12 20:10:12 -07:00 committed by Yen-Pin Hsiao
parent f3353ad328
commit 802829be05
1 changed files with 84 additions and 30 deletions
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114
libgralloc-qsd8k/framebuffer.cpp
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@ -86,6 +86,20 @@ char framebufferStateName[] = {'S', 'R', 'A'};
#define MAX_DEBUG_FPS_LEVEL 2
struct debug_fps_metadata_t {
/*fps calculation based on time or number of frames*/
enum DfmType {
DFM_FRAMES = 0,
DFM_TIME = 1,
};
DfmType type;
/* indicates how much time do we wait till we calculate FPS */
unsigned long time_period;
/*indicates how much time elapsed since we report fps*/
float time_elapsed;
/* indicates how many frames do we wait till we calculate FPS */
unsigned int period;
/* current frame, will go upto period, and then reset */
@ -176,9 +190,21 @@ static void populate_debug_fps_metadata(void)
{
char prop[PROPERTY_VALUE_MAX];
/*defaults calculation of fps to based on number of frames*/
property_get("debug.gr.calcfps.type", prop, "0");
debug_fps_metadata.type = (debug_fps_metadata_t::DfmType) atoi(prop);
/*defaults to 1000ms*/
property_get("debug.gr.calcfps.timeperiod", prop, "1000");
debug_fps_metadata.time_period = atoi(prop);
property_get("debug.gr.calcfps.period", prop, "10");
debug_fps_metadata.period = atoi(prop);
if (debug_fps_metadata.period > MAX_FPS_CALC_PERIOD_IN_FRAMES) {
debug_fps_metadata.period = MAX_FPS_CALC_PERIOD_IN_FRAMES;
}
/* default ignorethresh_us: 500 milli seconds */
property_get("debug.gr.calcfps.ignorethresh_us", prop, "500000");
debug_fps_metadata.ignorethresh_us = atoi(prop);
@ -202,6 +228,41 @@ static void populate_debug_fps_metadata(void)
LOGE("ignorethresh_us: %lld", debug_fps_metadata.ignorethresh_us);
}
static void print_fps(float fps)
{
if (debug_fps_metadata_t::DFM_FRAMES == debug_fps_metadata.type)
LOGE("FPS for last %d frames: %3.2f", debug_fps_metadata.period, fps);
else
LOGE("FPS for last (%f ms, %d frames): %3.2f",
debug_fps_metadata.time_elapsed,
debug_fps_metadata.curr_frame, fps);
debug_fps_metadata.curr_frame = 0;
debug_fps_metadata.time_elapsed = 0.0;
if (debug_fps_level > 1) {
LOGE("Frame Arrival Distribution:");
for (unsigned int i = 0;
i < ((debug_fps_metadata.framearrival_steps / 6) + 1);
i++) {
LOGE("%lld %lld %lld %lld %lld %lld",
debug_fps_metadata.accum_framearrivals[i*6],
debug_fps_metadata.accum_framearrivals[i*6+1],
debug_fps_metadata.accum_framearrivals[i*6+2],
debug_fps_metadata.accum_framearrivals[i*6+3],
debug_fps_metadata.accum_framearrivals[i*6+4],
debug_fps_metadata.accum_framearrivals[i*6+5]);
}
/* We are done with displaying, now clear the stats */
for (unsigned int i = 0;
i < debug_fps_metadata.framearrival_steps;
i++)
debug_fps_metadata.accum_framearrivals[i] = 0;
}
return;
}
static void calc_fps(nsecs_t currtime_us)
{
static nsecs_t oldtime_us = 0;
@ -210,41 +271,15 @@ static void calc_fps(nsecs_t currtime_us)
oldtime_us = currtime_us;
if (diff > debug_fps_metadata.ignorethresh_us) {
if (debug_fps_metadata_t::DFM_FRAMES == debug_fps_metadata.type &&
diff > debug_fps_metadata.ignorethresh_us) {
return;
}
if (debug_fps_metadata.curr_frame == debug_fps_metadata.period) {
/* time to calculate and display FPS */
nsecs_t sum = 0;
for (unsigned int i = 0; i < debug_fps_metadata.period; i++)
sum += debug_fps_metadata.framearrivals[i];
LOGE("FPS for last %d frames: %3.2f", debug_fps_metadata.period,
(debug_fps_metadata.period * float(1000000))/float(sum));
debug_fps_metadata.curr_frame = 0;
if (debug_fps_level > 1) {
LOGE("Frame Arrival Distribution:");
for (unsigned int i = 0;
i < ((debug_fps_metadata.framearrival_steps / 6) + 1);
i++) {
LOGE("%lld %lld %lld %lld %lld %lld",
debug_fps_metadata.accum_framearrivals[i*6],
debug_fps_metadata.accum_framearrivals[i*6+1],
debug_fps_metadata.accum_framearrivals[i*6+2],
debug_fps_metadata.accum_framearrivals[i*6+3],
debug_fps_metadata.accum_framearrivals[i*6+4],
debug_fps_metadata.accum_framearrivals[i*6+5]);
}
/* We are done with displaying, now clear the stats */
for (unsigned int i = 0; i < debug_fps_metadata.framearrival_steps; i++)
debug_fps_metadata.accum_framearrivals[i] = 0;
}
if (debug_fps_metadata.curr_frame < MAX_FPS_CALC_PERIOD_IN_FRAMES) {
debug_fps_metadata.framearrivals[debug_fps_metadata.curr_frame++] = diff;
}
debug_fps_metadata.framearrivals[debug_fps_metadata.curr_frame++] = diff;
if (debug_fps_level > 1) {
unsigned int currstep = (diff + debug_fps_metadata.margin_us) / 16666;
@ -252,6 +287,25 @@ static void calc_fps(nsecs_t currtime_us)
debug_fps_metadata.accum_framearrivals[currstep-1]++;
}
}
if (debug_fps_metadata_t::DFM_FRAMES == debug_fps_metadata.type) {
if (debug_fps_metadata.curr_frame == debug_fps_metadata.period) {
/* time to calculate and display FPS */
nsecs_t sum = 0;
for (unsigned int i = 0; i < debug_fps_metadata.period; i++)
sum += debug_fps_metadata.framearrivals[i];
print_fps((debug_fps_metadata.period * float(1000000))/float(sum));
}
}
else if (debug_fps_metadata_t::DFM_TIME == debug_fps_metadata.type) {
debug_fps_metadata.time_elapsed += ((float)diff/1000.0);
if (debug_fps_metadata.time_elapsed >= debug_fps_metadata.time_period) {
float fps = (1000.0 * debug_fps_metadata.curr_frame)/
(float)debug_fps_metadata.time_elapsed;
print_fps(fps);
}
}
return;
}
#endif // DEBUG_CALC_FPS