From 5b5fd87a8be6a9b08d4a55dee4db1e59865463cd Mon Sep 17 00:00:00 2001
From: samuncle <samuncle@178a84e3-b1eb-0310-8ba1-8eac791a3b58>
Date: Wed, 4 Dec 2013 16:33:14 +0000
Subject: [PATCH] Add two per track parameter for color correction

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@14633 178a84e3-b1eb-0310-8ba1-8eac791a3b58
---
 src/graphics/callbacks.cpp |  6 +++---
 src/tracks/track.cpp       |  4 ++++
 src/tracks/track.hpp       | 11 +++++++++++
 3 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/src/graphics/callbacks.cpp b/src/graphics/callbacks.cpp
index 2814d8437..49fe5d779 100644
--- a/src/graphics/callbacks.cpp
+++ b/src/graphics/callbacks.cpp
@@ -144,12 +144,12 @@ void GrassShaderProvider::OnSetConstants(IMaterialRendererServices *srv, int use
 
 void ColorLevelsProvider::OnSetConstants(IMaterialRendererServices *srv, int userData)
 {
-    m_inlevel = vector3df(0.0, 0.65, 137.0);
-    m_outlevel = vector2df(0.0, 255.0);
+
+    m_inlevel = World::getWorld()->getTrack()->getColorLevelIn();
+    m_outlevel = World::getWorld()->getTrack()->getColorLevelOut();
 
     srv->setVertexShaderConstant("inlevel", &m_inlevel.X, 3);
     srv->setVertexShaderConstant("outlevel", &m_outlevel.X, 2);
-    
 
     if (!firstdone)
     {
diff --git a/src/tracks/track.cpp b/src/tracks/track.cpp
index e7d1c40c0..961e52646 100644
--- a/src/tracks/track.cpp
+++ b/src/tracks/track.cpp
@@ -114,6 +114,8 @@ Track::Track(const std::string &filename)
     m_mini_map              = NULL;
     m_bloom                 = true;
     m_bloom_threshold       = 0.75f;
+    m_color_inlevel         = core::vector3df(0.0,1.0, 255.0);
+    m_color_outlevel        = core::vector2df(0.0, 255.0);
     m_clouds                = false;
     m_lensflare             = false;
     m_godrays               = false;
@@ -371,6 +373,8 @@ void Track::loadTrackInfo()
     root->get("god-rays",              &m_godrays);
     root->get("displacement-speed",    &m_displacement_speed);
     root->get("caustics-speed",        &m_caustics_speed);
+    root->get("color-level-in",        &m_color_inlevel);
+    root->get("color-level-out",       &m_color_outlevel);
 
     // Make the default for auto-rescue in battle mode and soccer mode to be false
     if(m_is_arena || m_is_soccer)
diff --git a/src/tracks/track.hpp b/src/tracks/track.hpp
index 01db425f5..862ac050f 100644
--- a/src/tracks/track.hpp
+++ b/src/tracks/track.hpp
@@ -380,6 +380,12 @@ private:
 
     float m_displacement_speed;
     float m_caustics_speed;
+    
+    /** The levels for color correction 
+     * m_color_inlevel(black, gamma, white)
+     * m_color_outlevel(black, white)*/
+    core::vector3df m_color_inlevel;
+    core::vector2df m_color_outlevel;
 
     /** List of all bezier curves in the track - for e.g. camera, ... */
     std::vector<BezierCurve*> m_all_curves;
@@ -583,10 +589,15 @@ public:
 
     bool getBloom() const { return m_bloom; }
     float getBloomThreshold() const { return m_bloom_threshold; }
+    
+    /** Return the color levels for color correction shader */
+    core::vector3df getColorLevelIn() const { return m_color_inlevel; }
+    core::vector2df getColorLevelOut() const { return m_color_outlevel; }
 
     bool hasLensFlare() const { return m_lensflare; }
     bool hasGodRays() const { return m_godrays; }
     bool hasShadows() const { return m_shadows; }
+    
 
     float getDisplacementSpeed() const { return m_displacement_speed; }
     float getCausticsSpeed() const { return m_caustics_speed; }