From 0b41dd2661fe9a92b79ab21c3c762ddaab7c6a2e Mon Sep 17 00:00:00 2001
From: Daniel Scharrer <daniel@constexpr.org>
Date: Thu, 26 Oct 2017 21:19:30 +0200
Subject: [PATCH] Config: Re-add gamma option

Gamma is only changed while fullscreen.

This partially reverts commit 3ad44dc.

Implements: feature request #254
---
 src/core/ArxGame.cpp   | 1 +
 src/core/Config.cpp    | 6 +++++-
 src/core/Config.h      | 1 +
 src/gui/MenuPublic.cpp | 5 +++++
 src/gui/MenuPublic.h   | 1 +
 5 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/core/ArxGame.cpp b/src/core/ArxGame.cpp
index ce24773999..3eca46f29c 100644
--- a/src/core/ArxGame.cpp
+++ b/src/core/ArxGame.cpp
@@ -803,6 +803,7 @@ bool ArxGame::initGame()
 	
 	ARXMenu_Options_Video_SetFogDistance(config.video.fogDistance);
 	ARXMenu_Options_Video_SetDetailsQuality(config.video.levelOfDetail);
+	ARXMenu_Options_Video_SetGamma(config.video.gamma);
 	ARXMenu_Options_Audio_SetMasterVolume(config.audio.volume);
 	ARXMenu_Options_Audio_SetSfxVolume(config.audio.sfxVolume);
 	ARXMenu_Options_Audio_SetSpeechVolume(config.audio.speechVolume);
diff --git a/src/core/Config.cpp b/src/core/Config.cpp
index 4d2cb758a5..932704de21 100644
--- a/src/core/Config.cpp
+++ b/src/core/Config.cpp
@@ -109,6 +109,7 @@ const bool allowConsole = false;
 #endif
 
 const float
+	gamma = 5.f,
 	hudScale = 0.5f;
 
 const ActionKey actions[NUM_ACTION_KEY] = {
@@ -184,6 +185,7 @@ const std::string
 	fullscreen = "full_screen",
 	levelOfDetail = "others_details",
 	fogDistance = "fog",
+	gamma = "gamma",
 	antialiasing = "antialiasing",
 	vsync = "vsync",
 	fpsLimit = "fps_limit",
@@ -410,6 +412,7 @@ bool Config::save() {
 	writer.writeKey(Key::fullscreen, video.fullscreen);
 	writer.writeKey(Key::levelOfDetail, video.levelOfDetail);
 	writer.writeKey(Key::fogDistance, video.fogDistance);
+	writer.writeKey(Key::gamma, video.gamma);
 	writer.writeKey(Key::antialiasing, video.antialiasing);
 	writer.writeKey(Key::vsync, video.vsync);
 	writer.writeKey(Key::fpsLimit, video.fpsLimit);
@@ -543,7 +546,8 @@ bool Config::init(const fs::path & file) {
 	}
 	video.fullscreen = reader.getKey(Section::Video, Key::fullscreen, Default::fullscreen);
 	video.levelOfDetail = reader.getKey(Section::Video, Key::levelOfDetail, Default::levelOfDetail);
-	video.fogDistance = reader.getKey(Section::Video, Key::fogDistance, Default::fogDistance);;
+	video.fogDistance = reader.getKey(Section::Video, Key::fogDistance, Default::fogDistance);
+	video.gamma = reader.getKey(Section::Video, Key::gamma, Default::gamma);
 	video.antialiasing = reader.getKey(Section::Video, Key::antialiasing, Default::antialiasing);
 	int vsync = reader.getKey(Section::Video, Key::vsync, Default::vsync);
 	video.vsync = glm::clamp(vsync, -1, 1);
diff --git a/src/core/Config.h b/src/core/Config.h
index 5df96cf8a2..0f748d26a4 100644
--- a/src/core/Config.h
+++ b/src/core/Config.h
@@ -134,6 +134,7 @@ class Config {
 		bool fullscreen;
 		int levelOfDetail;
 		float fogDistance;
+		float gamma;
 		bool antialiasing;
 		int vsync;
 		int fpsLimit;
diff --git a/src/gui/MenuPublic.cpp b/src/gui/MenuPublic.cpp
index 301248b7d7..5948005d79 100644
--- a/src/gui/MenuPublic.cpp
+++ b/src/gui/MenuPublic.cpp
@@ -139,6 +139,11 @@ void ARXMenu_Options_Video_SetDetailsQuality(int _iQuality) {
 	}
 }
 
+void ARXMenu_Options_Video_SetGamma(float gamma) {
+	config.video.gamma = glm::clamp(gamma, 0.f, 10.f);
+	mainApp->getWindow()->setGamma(1.f + (gamma / 5.f - 1.f) * 0.5f);
+}
+
 void ARXMenu_Options_Audio_SetMasterVolume(float volume) {
 	
 	config.audio.volume = glm::clamp(volume, 0.f, 10.f);
diff --git a/src/gui/MenuPublic.h b/src/gui/MenuPublic.h
index 19594644a7..852fcec982 100644
--- a/src/gui/MenuPublic.h
+++ b/src/gui/MenuPublic.h
@@ -53,6 +53,7 @@ ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
 
 void ARXMenu_Options_Video_SetFogDistance(float distance);
 void ARXMenu_Options_Video_SetDetailsQuality(int lod);
+void ARXMenu_Options_Video_SetGamma(float gamma);
 
 // Audio options