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Averaging frame times.

This commit is contained in:
Anish Bhobe 2025-06-18 17:18:58 +02:00
parent 0e55949309
commit babbe93479
4 changed files with 21 additions and 3 deletions
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1
.clang-format
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@ -4,6 +4,7 @@ AlignAfterOpenBracket: AlwaysBreak
AlignConsecutiveAssignments:
Enabled: true
AcrossEmptyLines: true
AlignCompound: true
AlignFunctionPointers: true
AlignConsecutiveDeclarations:
Enabled: true

12
Blaze/Blaze.cpp
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@ -117,9 +117,15 @@ SDL_AppResult SDL_AppIterate( void* appstate )
misc.previousCounter = currentCounter;
{
double deltaTimeMs = deltaTime * 1000.0;
double fps = 1.0 / deltaTime;
( void )sprintf_s<256>( appState.sprintfBuffer, "%.2f fps %.2f ms", fps, deltaTimeMs );
misc.frameTimeSum -= misc.frameTime[misc.frameTimeWriteHead];
misc.frameTime[misc.frameTimeWriteHead] = deltaTime;
misc.frameTimeSum += deltaTime;
misc.frameTimeWriteHead = ( misc.frameTimeWriteHead + 1 ) % misc.frameTimeEntryCount;
double avgDeltaTime = ( misc.frameTimeSum / misc.frameTimeEntryCount );
double fps = 1.0 / avgDeltaTime;
double avgDeltaTimeMs = 1000.0 * avgDeltaTime;
( void )sprintf_s<256>( appState.sprintfBuffer, "%.2f fps %.2f ms", fps, avgDeltaTimeMs );
SDL_SetWindowTitle( appState.window, appState.sprintfBuffer );
}

6
Blaze/MiscData.cpp
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@ -445,6 +445,12 @@ bool MiscData::init( RenderDevice const& renderDevice )
};
}
// Frame Time
frameTimeEntryCount = 16;
memset( frameTime, 0, frameTimeEntryCount * sizeof( float ) );
frameTimeSum = 0;
frameTimeWriteHead = 0;
return true;
}

5
Blaze/MiscData.h
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@ -40,6 +40,11 @@ struct MiscData
VkImageMemoryBarrier2 renderToPresentBarrier;
VkDependencyInfo renderToPresentDependency;
double frameTime[16];
double frameTimeSum;
uint8_t frameTimeWriteHead;
uint8_t frameTimeEntryCount;
bool init( RenderDevice const& renderDevice );
void destroy( RenderDevice const& renderDevice );
};