From 01ad1a2317e68ac1f3d4d4ef572dc8d71f1aa7cd Mon Sep 17 00:00:00 2001
From: trotFunky <teo.couprie_diaz@telecom-sudparis.eu>
Date: Mon, 30 Sep 2019 19:19:44 +0200
Subject: [PATCH] Inverted Red and Blue channels for TGA loading

---
 src/DataHandling/Texture.cpp | 15 ++++++++++++++-
 src/DataHandling/Texture.h   |  2 ++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/src/DataHandling/Texture.cpp b/src/DataHandling/Texture.cpp
index 7fc4b32..003d030 100644
--- a/src/DataHandling/Texture.cpp
+++ b/src/DataHandling/Texture.cpp
@@ -71,7 +71,9 @@ bool Texture::load_tga(const std::string& filename, uint8_t*& data_array)
 
 bool Texture::load_rgb_tga(const std::string& rgb_filename)
 {
-    return load_tga(rgb_filename,image_data);
+    bool return_value = load_tga(rgb_filename,image_data);
+    invert_channels(0,2);
+    return return_value;
 }
 
 bool Texture::load_rgba_tga(const std::string& rgb_filename, const std::string& mask_filename)
@@ -117,3 +119,14 @@ bool Texture::load_rgba_tga(const std::string& rgb_filename, const std::string&
 
     return true;
 }
+
+void Texture::invert_channels(uint8_t first_channel, uint8_t second_channel)
+{
+    uint8_t increment = color_bits/8;
+    for (int i = 0;i<width*height;i++)
+    {
+        uint8_t temp = image_data[i*increment+first_channel];
+        image_data[i*increment+first_channel] = image_data[i*increment+second_channel];
+        image_data[i*increment+second_channel] = temp;
+    }
+}
diff --git a/src/DataHandling/Texture.h b/src/DataHandling/Texture.h
index 195ba51..d0c791e 100644
--- a/src/DataHandling/Texture.h
+++ b/src/DataHandling/Texture.h
@@ -32,6 +32,8 @@ public:
 private:
     /// Load and RGB TGA image file to an array
     bool load_tga(const std::string& filename, uint8_t*& data_array);
+
+    void invert_channels(uint8_t first_channel,uint8_t second_channel);
 };