From cc3fbb22e495021145c71875017d3403aeee7d3b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henrik=20Rydg=C3=A5rd?= <hrydgard@gmail.com>
Date: Wed, 18 Jun 2025 11:00:27 +0200
Subject: [PATCH] Change some stat arrays from double to float (to save mem
 bandwidth)

---
 Core/Debugger/WebSocket/GPUStatsSubscriber.cpp |  8 ++++----
 Core/HW/Display.cpp                            | 10 +++++-----
 Core/HW/Display.h                              |  2 +-
 UI/DebugOverlay.cpp                            |  4 ++--
 4 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/Core/Debugger/WebSocket/GPUStatsSubscriber.cpp b/Core/Debugger/WebSocket/GPUStatsSubscriber.cpp
index 1c1147bd42..2e6582e99f 100644
--- a/Core/Debugger/WebSocket/GPUStatsSubscriber.cpp
+++ b/Core/Debugger/WebSocket/GPUStatsSubscriber.cpp
@@ -26,8 +26,8 @@ struct CollectedStats {
 	float fps;
 	float actual_fps;
 	char statbuf[4096];
-	std::vector<double> frameTimes;
-	std::vector<double> sleepTimes;
+	std::vector<float> frameTimes;
+	std::vector<float> sleepTimes;
 	int frameTimePos;
 };
 
@@ -123,8 +123,8 @@ void WebSocketGPUStatsState::FlipListener() {
 	__DisplayGetDebugStats(stats.statbuf, sizeof(stats.statbuf));
 
 	int valid;
-	double *sleepHistory;
-	double *history = __DisplayGetFrameTimes(&valid, &stats.frameTimePos, &sleepHistory);
+	float *sleepHistory;
+	float *history = __DisplayGetFrameTimes(&valid, &stats.frameTimePos, &sleepHistory);
 
 	stats.frameTimes.resize(valid);
 	stats.sleepTimes.resize(valid);
diff --git a/Core/HW/Display.cpp b/Core/HW/Display.cpp
index 064a2b1cde..405dec5021 100644
--- a/Core/HW/Display.cpp
+++ b/Core/HW/Display.cpp
@@ -63,8 +63,8 @@ static int fpsHistoryPos = 0;
 static int fpsHistoryValid = 0;
 
 // Frame time stats.
-static double frameTimeHistory[600];
-static double frameSleepHistory[600];
+static float frameTimeHistory[600];
+static float frameSleepHistory[600];
 static constexpr int frameTimeHistorySize = (int)ARRAY_SIZE(frameTimeHistory);
 static int frameTimeHistoryPos = 0;
 static int frameTimeHistoryValid = 0;
@@ -93,13 +93,13 @@ static void CalculateFPS() {
 	}
 
 	if ((DebugOverlay)g_Config.iDebugOverlay == DebugOverlay::FRAME_GRAPH || coreCollectDebugStats) {
-		frameTimeHistory[frameTimeHistoryPos++] = now - lastFrameTimeHistory;
+		frameTimeHistory[frameTimeHistoryPos++] = (float)(now - lastFrameTimeHistory);
 		lastFrameTimeHistory = now;
 		frameTimeHistoryPos = frameTimeHistoryPos % frameTimeHistorySize;
 		if (frameTimeHistoryValid < frameTimeHistorySize) {
 			++frameTimeHistoryValid;
 		}
-		frameSleepHistory[frameTimeHistoryPos] = 0.0;
+		frameSleepHistory[frameTimeHistoryPos] = 0.0f;
 	}
 }
 
@@ -169,7 +169,7 @@ void DisplayAdjustAccumulatedHcount(uint32_t diff) {
 	hCountBase += diff;
 }
 
-double *__DisplayGetFrameTimes(int *out_valid, int *out_pos, double **out_sleep) {
+float *__DisplayGetFrameTimes(int *out_valid, int *out_pos, float **out_sleep) {
 	*out_valid = frameTimeHistoryValid;
 	*out_pos = frameTimeHistoryPos;
 	*out_sleep = frameSleepHistory;
diff --git a/Core/HW/Display.h b/Core/HW/Display.h
index 4bc08c1a45..59fb13511e 100644
--- a/Core/HW/Display.h
+++ b/Core/HW/Display.h
@@ -42,7 +42,7 @@ void __DisplayGetDebugStats(char *stats, size_t bufsize);
 void __DisplayGetAveragedFPS(float *out_vps, float *out_fps);
 void __DisplayGetFPS(float *out_vps, float *out_fps, float *out_actual_fps);
 void __DisplayGetVPS(float *out_vps);
-double *__DisplayGetFrameTimes(int *out_valid, int *out_pos, double **out_sleep);
+float *__DisplayGetFrameTimes(int *out_valid, int *out_pos, float **out_sleep);
 int DisplayGetSleepPos();
 void DisplayNotifySleep(double t, int pos = -1);
 bool DisplayIsRunningSlow();
diff --git a/UI/DebugOverlay.cpp b/UI/DebugOverlay.cpp
index 354ced7e7b..9946fd639e 100644
--- a/UI/DebugOverlay.cpp
+++ b/UI/DebugOverlay.cpp
@@ -97,9 +97,9 @@ static void DrawControlDebug(UIContext *ctx, const ControlMapper &mapper, const
 
 static void DrawFrameTimes(UIContext *ctx, const Bounds &bounds) {
 	FontID ubuntu24("UBUNTU24");
-	double *sleepHistory;
+	float *sleepHistory;
 	int valid, pos;
-	double *history = __DisplayGetFrameTimes(&valid, &pos, &sleepHistory);
+	float *history = __DisplayGetFrameTimes(&valid, &pos, &sleepHistory);
 	int scale = 7000;
 	int width = 600;