From f7b4866811c63ae24c366d9452e53d24e504336f Mon Sep 17 00:00:00 2001 From: WBoerenkamps Date: Thu, 12 Dec 2024 19:47:59 +0100 Subject: fps fix + regression test --- src/crepe/manager/LoopTimerManager.cpp | 3 +-- src/crepe/manager/LoopTimerManager.h | 6 +++--- src/test/LoopTimerTest.cpp | 16 ++++++++++++++++ 3 files changed, 20 insertions(+), 5 deletions(-) (limited to 'src') diff --git a/src/crepe/manager/LoopTimerManager.cpp b/src/crepe/manager/LoopTimerManager.cpp index 9819632..9d24c2b 100644 --- a/src/crepe/manager/LoopTimerManager.cpp +++ b/src/crepe/manager/LoopTimerManager.cpp @@ -1,6 +1,5 @@ #include #include - #include "../util/Log.h" #include "LoopTimerManager.h" @@ -31,7 +30,7 @@ void LoopTimerManager::update() { this->delta_time = this->maximum_delta_time; } if (this->delta_time > 0s) { - this->actual_fps = 1.0 / duration_cast(this->delta_time).count(); + this->actual_fps = static_cast(1.0 / this->delta_time.count()); } else { this->actual_fps = 0; } diff --git a/src/crepe/manager/LoopTimerManager.h b/src/crepe/manager/LoopTimerManager.h index 91403e4..c943d41 100644 --- a/src/crepe/manager/LoopTimerManager.h +++ b/src/crepe/manager/LoopTimerManager.h @@ -6,7 +6,7 @@ namespace crepe { -typedef std::chrono::duration duration_t; +typedef std::chrono::duration duration_t; typedef std::chrono::duration elapsed_time_t; /** @@ -149,9 +149,9 @@ private: private: //! Target frames per second. - unsigned target_fps = 60; + unsigned int target_fps = 60; //! Actual frames per second. - unsigned actual_fps = 0; + unsigned int actual_fps = 0; //! Time scale for speeding up or slowing down the game (0 = pause, < 1 = slow down, 1 = normal speed, > 1 = speed up). float time_scale = 1; //! Maximum delta time in seconds to avoid large jumps. diff --git a/src/test/LoopTimerTest.cpp b/src/test/LoopTimerTest.cpp index 5e1eccf..c468567 100644 --- a/src/test/LoopTimerTest.cpp +++ b/src/test/LoopTimerTest.cpp @@ -76,3 +76,19 @@ TEST_F(LoopTimerTest, getCurrentTime) { ASSERT_NEAR(loop_timer.get_elapsed_time().count(), elapsed_time, 5); } +TEST_F(LoopTimerTest, getFPS) { + // Set the target FPS to 60 (which gives a target time per frame of ~16.67 ms) + loop_timer.set_target_framerate(60); + + auto start_time = steady_clock::now(); + loop_timer.enforce_frame_rate(); + + auto elapsed_time = steady_clock::now() - start_time; + loop_timer.update(); + unsigned int fps = loop_timer.get_fps(); + auto elapsed_ms = duration_cast(elapsed_time).count(); + + // For 60 FPS, the target frame time is around 16.67ms + ASSERT_NEAR(elapsed_ms, 16.7, 1); + ASSERT_NEAR(fps, 60, 2); +} -- cgit v1.2.3 From 15c25ba41d0e128c61b38c1751bf5eb36b5a040c Mon Sep 17 00:00:00 2001 From: WBoerenkamps Date: Thu, 12 Dec 2024 19:51:10 +0100 Subject: made return unsigned int --- src/crepe/manager/LoopTimerManager.cpp | 2 +- src/crepe/manager/LoopTimerManager.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'src') diff --git a/src/crepe/manager/LoopTimerManager.cpp b/src/crepe/manager/LoopTimerManager.cpp index 9d24c2b..57956f2 100644 --- a/src/crepe/manager/LoopTimerManager.cpp +++ b/src/crepe/manager/LoopTimerManager.cpp @@ -1,6 +1,6 @@ +#include "../util/Log.h" #include #include -#include "../util/Log.h" #include "LoopTimerManager.h" diff --git a/src/crepe/manager/LoopTimerManager.h b/src/crepe/manager/LoopTimerManager.h index c943d41..76b02d3 100644 --- a/src/crepe/manager/LoopTimerManager.h +++ b/src/crepe/manager/LoopTimerManager.h @@ -55,7 +55,7 @@ public: * * \return Current FPS. */ - unsigned get_fps() const; + unsigned int get_fps() const; /** * \brief Get the current time scale. -- cgit v1.2.3 From 66b0a4e535759df5381972c15b1babcf0fb30154 Mon Sep 17 00:00:00 2001 From: WBoerenkamps Date: Thu, 12 Dec 2024 19:59:58 +0100 Subject: include fix --- src/crepe/manager/LoopTimerManager.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'src') diff --git a/src/crepe/manager/LoopTimerManager.cpp b/src/crepe/manager/LoopTimerManager.cpp index 57956f2..a6e4788 100644 --- a/src/crepe/manager/LoopTimerManager.cpp +++ b/src/crepe/manager/LoopTimerManager.cpp @@ -1,7 +1,8 @@ -#include "../util/Log.h" #include #include +#include "../util/Log.h" + #include "LoopTimerManager.h" using namespace crepe; -- cgit v1.2.3 From ca4c004d473ad5ed02abd4a7beff3a5a65c83487 Mon Sep 17 00:00:00 2001 From: WBoerenkamps Date: Fri, 13 Dec 2024 16:31:13 +0100 Subject: made test less strict --- src/test/LoopTimerTest.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src') diff --git a/src/test/LoopTimerTest.cpp b/src/test/LoopTimerTest.cpp index 6391076..7bd6305 100644 --- a/src/test/LoopTimerTest.cpp +++ b/src/test/LoopTimerTest.cpp @@ -30,7 +30,7 @@ TEST_F(LoopTimerTest, EnforcesTargetFrameRate) { auto elapsed_ms = duration_cast(elapsed_time).count(); // For 60 FPS, the target frame time is around 16.67ms - ASSERT_NEAR(elapsed_ms, 16.7, 1); + ASSERT_NEAR(elapsed_ms, 16.7, 5); } TEST_F(LoopTimerTest, SetTargetFps) { -- cgit v1.2.3