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Revert to original tDiff calculation, make frame-based tDiff calculation specific to iOS/macOS xcode examples project

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This commit is contained in:
Stephen Saunders 2022-06-11 20:14:55 -04:00
parent 121612857c
commit 17aaa7305b
1 changed files with 8 additions and 4 deletions
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12
base/vulkanexamplebase.cpp
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@ -255,7 +255,7 @@ VkPipelineShaderStageCreateInfo VulkanExampleBase::loadShader(std::string fileNa
void VulkanExampleBase::nextFrame()
{
//auto tStart = std::chrono::high_resolution_clock::now();
auto tStart = std::chrono::high_resolution_clock::now();
if (viewUpdated)
{
viewUpdated = false;
@ -265,9 +265,12 @@ void VulkanExampleBase::nextFrame()
render();
frameCounter++;
auto tEnd = std::chrono::high_resolution_clock::now();
// SRS - Calculate tDiff as time between frames vs. rendering time for Win32/macOS/iOS vsync portability
//auto tDiff = std::chrono::duration<double, std::milli>(tEnd - tStart).count();
#if (defined(VK_USE_PLATFORM_IOS_MVK) || (defined(VK_USE_PLATFORM_MACOS_MVK) && !defined(VK_EXAMPLE_XCODE_GENERATED)))
// SRS - Calculate tDiff as time between frames vs. rendering time for iOS/macOS displayLink-driven examples project
auto tDiff = std::chrono::duration<double, std::milli>(tEnd - tPrevEnd).count();
#else
auto tDiff = std::chrono::duration<double, std::milli>(tEnd - tStart).count();
#endif
frameTimer = (float)tDiff / 1000.0f;
camera.update(frameTimer);
if (camera.moving())
@ -740,6 +743,7 @@ void VulkanExampleBase::prepareFrame()
if (result == VK_ERROR_OUT_OF_DATE_KHR) {
windowResize();
}
return;
}
else {
VK_CHECK_RESULT(result);
@ -1750,7 +1754,7 @@ static CVReturn displayLinkOutputCallback(CVDisplayLinkRef displayLink, const CV
}
// SRS - Window resizing already handled by windowResize() in VulkanExampleBase::submitFrame()
// - handling window resize events here is redundant and can cause interaction problems
// - handling window resize events here is redundant and can cause thread interaction problems
/*
- (NSSize)windowWillResize:(NSWindow *)sender toSize:(NSSize)frameSize
{