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Implement frame time measurement on Android using VK_GOOGLE_display_timing

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This commit is contained in:
Henrik Rydgård
2023-08-03 12:59:25 +02:00
parent 9b038d6574
commit 0530dc57a8
9 changed files with 96 additions and 72 deletions
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UI/DebugOverlay.cpp
+38 -36
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@@ -104,45 +104,47 @@ static void DrawFrameTiming(UIContext *ctx, const Bounds &bounds) {
char statBuf[1024]{};
FrameTimeData data = ctx->GetDrawContext()->GetFrameTimeData(4);
if (data.frameBegin == 0.0) {
snprintf(statBuf, sizeof(statBuf), "(Frame timing collection not supported on this backend)");
} else {
double fenceLatency_s = data.afterFenceWait - data.frameBegin;
double submitLatency_s = data.firstSubmit - data.frameBegin;
double queuePresentLatency_s = data.queuePresent - data.frameBegin;
double actualPresentLatency_s = data.actualPresent - data.frameBegin;
double margin = data.presentMargin;
double computedMargin = data.actualPresent - data.queuePresent;
char presentStats[256] = "";
if (data.actualPresent != 0.0) {
snprintf(presentStats, sizeof(presentStats),
"* Actual present: %0.1f ms\n"
"* Margin: %0.1f ms (%0.1f computed)\n",
actualPresentLatency_s * 1000.0,
margin * 1000.0,
computedMargin * 1000.0);
}
snprintf(statBuf, sizeof(statBuf),
"Time from start of frame to event:\n"
"* Past the fence: %0.1f ms\n"
"* First submit: %0.1f ms\n"
"* Queue-present: %0.1f ms\n"
"%s",
fenceLatency_s * 1000.0,
submitLatency_s * 1000.0,
queuePresentLatency_s * 1000.0,
presentStats
);
}
ctx->Flush();
ctx->BindFontTexture();
ctx->Draw()->SetFontScale(0.5f, 0.5f);
ctx->Draw()->DrawTextRect(ubuntu24, statBuf, bounds.x + 11, bounds.y + 51, bounds.w - 20, bounds.h - 30, 0xc0000000, FLAG_DYNAMIC_ASCII);
ctx->Draw()->DrawTextRect(ubuntu24, statBuf, bounds.x + 10, bounds.y + 50, bounds.w - 20, bounds.h - 30, 0xFFFFFFFF, FLAG_DYNAMIC_ASCII);
for (int i = 0; i < 8; i++) {
FrameTimeData data = ctx->GetDrawContext()->GetFrameTimeData(6 + i);
if (data.frameBegin == 0.0) {
snprintf(statBuf, sizeof(statBuf), "(Frame timing collection not supported on this backend)");
} else {
double fenceLatency_s = data.afterFenceWait - data.frameBegin;
double submitLatency_s = data.firstSubmit - data.frameBegin;
double queuePresentLatency_s = data.queuePresent - data.frameBegin;
double actualPresentLatency_s = data.actualPresent - data.frameBegin;
double presentMargin = data.presentMargin;
double computedMargin = data.actualPresent - data.queuePresent;
char presentStats[256] = "";
if (data.actualPresent != 0.0) {
snprintf(presentStats, sizeof(presentStats),
"* Present: %0.1f ms\n"
"* Margin: %0.1f ms\n"
"* Margin(c): %0.1f ms\n",
actualPresentLatency_s * 1000.0,
presentMargin * 1000.0,
computedMargin * 1000.0);
}
snprintf(statBuf, sizeof(statBuf),
"%llu: From start of frame to event:\n"
"* Past fence: %0.1f ms\n"
"* Submit #1: %0.1f ms\n"
"* Queue-p: %0.1f ms\n"
"%s",
(long long)data.frameId,
fenceLatency_s * 1000.0,
submitLatency_s * 1000.0,
queuePresentLatency_s * 1000.0,
presentStats
);
}
ctx->Draw()->DrawTextRect(ubuntu24, statBuf, bounds.x + 10 + i * 150, bounds.y + 50, bounds.w - 20, bounds.h - 30, 0xFFFFFFFF, FLAG_DYNAMIC_ASCII);
}
ctx->Draw()->SetFontScale(1.0f, 1.0f);
ctx->Flush();
ctx->RebindTexture();