From 5a3a058ed34848ebd44f055d8175c0ba4560f25a Mon Sep 17 00:00:00 2001
From: Sergeanur <s.anureev@yandex.ua>
Date: Sat, 28 Nov 2020 16:29:45 +0200
Subject: [PATCH] Make texture conversion work a bit faster

# Conflicts:
#	src/core/config.h
---
 src/core/config.h  |  1 +
 src/rw/TexRead.cpp | 16 ++++++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/src/core/config.h b/src/core/config.h
index e7b07576..b19bc738 100644
--- a/src/core/config.h
+++ b/src/core/config.h
@@ -240,6 +240,7 @@ enum Config {
 #define PS2_ALPHA_TEST		// emulate ps2 alpha test 
 #define IMPROVED_VIDEOMODE	// save and load videomode parameters instead of a magic number
 #define DISABLE_LOADING_SCREEN // disable the loading screen which vastly improves the loading time
+#define DISABLE_VSYNC_ON_TEXTURE_CONVERSION // make texture conversion work faster by disabling vsync
 //#define NO_ISLAND_LOADING  // disable loadscreen between islands via loading all island data at once, consumes more memory and CPU
 //#define USE_TEXTURE_POOL
 //#define CUTSCENE_BORDERS_SWITCH
diff --git a/src/rw/TexRead.cpp b/src/rw/TexRead.cpp
index 069152a2..c5252f77 100644
--- a/src/rw/TexRead.cpp
+++ b/src/rw/TexRead.cpp
@@ -24,6 +24,7 @@
 #include "Sprite2d.h"
 #include "Text.h"
 #include "RwHelper.h"
+#include "Frontend.h"
 #endif //GTA_PC
 
 float texLoadTime;
@@ -390,6 +391,15 @@ CreateTxdImageForVideoCard()
 	// so let's hope that is the case for all
 	rw::gl3::needToReadBackTextures = true;
 #endif
+	
+#ifdef DISABLE_VSYNC_ON_TEXTURE_CONVERSION
+	// let's disable vsync and frame limiter to speed up texture conversion
+	// (actually we probably don't need to disable frame limiter in here, but let's do it just in case =P)
+	int8 vsyncState = FrontEndMenuManager.m_PrefsVsync;
+	int8 frameLimiterState = FrontEndMenuManager.m_PrefsFrameLimiter;
+	FrontEndMenuManager.m_PrefsVsync = 0;
+	FrontEndMenuManager.m_PrefsFrameLimiter = 0;
+#endif
 
 	int32 i;
 	for (i = 0; i < TXDSTORESIZE; i++) {
@@ -444,6 +454,12 @@ CreateTxdImageForVideoCard()
 		}
 	}
 
+#ifdef DISABLE_VSYNC_ON_TEXTURE_CONVERSION
+	// restore vsync and frame limiter states
+	FrontEndMenuManager.m_PrefsVsync = vsyncState;
+	FrontEndMenuManager.m_PrefsFrameLimiter = frameLimiterState;
+#endif
+
 	RwStreamClose(img, nil);
 	delete []buf;