Fog color fix; refactoring

- fixed fog color setting
- removed unused glSecondaryColor and altered struct VertexCol
- minor refactoring in CText

5 files changed, 61 insertions, 66 deletions

diff --git a/src/graphics/core/vertex.h b/src/graphics/core/vertex.h
index 9ab4dbb..e2c35c3 100644
--- a/src/graphics/core/vertex.h
+++ b/src/graphics/core/vertex.h
@@ -69,36 +69,28 @@ struct Vertex
 
 /**
  * \struct VertexCol
- * \brief Vertex with color information
- *
- * This structure was created as analog to DirectX's D3DLVERTEX.
+ * \brief Colored vertex
  *
  * It contains:
  *  - vertex coordinates (x,y,z) as Math::Vector,
- *  - RGBA color as Color,
- *  - RGBA specular color as Color,
- *  - texture coordinates (u,v) as Math::Point.
+ *  - RGBA color as Color
  */
 struct VertexCol
 {
     Math::Vector coord;
     Color color;
-    Color specular;
-    Math::Point texCoord;
 
     explicit VertexCol(Math::Vector aCoord = Math::Vector(),
                        Color aColor = Color(),
-                       Color aSpecular = Color(),
                        Math::Point aTexCoord = Math::Point())
-        : coord(aCoord), color(aColor), specular(aSpecular), texCoord(aTexCoord) {}
+        : coord(aCoord), color(aColor) {}
 
-    //! Returns a string "(c: [...], col: [...], sp: [...], tc: [...])"
+    //! Returns a string "(c: [...], col: [...])"
     inline std::string ToString() const
     {
         std::stringstream s;
         s.precision(3);
-        s << "(c: " << coord.ToString() << ", col: " << color.ToString() << ", sp: "
-          << specular.ToString() << ", tc: " << texCoord.ToString() << ")";
+        s << "(c: " << coord.ToString() << ", col: " << color.ToString() << ")";
         return s.str();
     }
 };
diff --git a/src/graphics/engine/engine.cpp b/src/graphics/engine/engine.cpp
index 37f9b00..c170922 100644
--- a/src/graphics/engine/engine.cpp
+++ b/src/graphics/engine/engine.cpp
@@ -3417,10 +3417,10 @@ void CEngine::DrawBackgroundGradient(const Color& up, const Color& down)
 
     VertexCol vertex[4] =
     {
-        VertexCol(Math::Vector(p1.x, p1.y, 0.0f), color[1], color[2]),
-        VertexCol(Math::Vector(p1.x, p2.y, 0.0f), color[0], color[2]),
-        VertexCol(Math::Vector(p2.x, p1.y, 0.0f), color[1], color[2]),
-        VertexCol(Math::Vector(p2.x, p2.y, 0.0f), color[0], color[2])
+        VertexCol(Math::Vector(p1.x, p1.y, 0.0f), color[1]),
+        VertexCol(Math::Vector(p1.x, p2.y, 0.0f), color[0]),
+        VertexCol(Math::Vector(p2.x, p1.y, 0.0f), color[1]),
+        VertexCol(Math::Vector(p2.x, p2.y, 0.0f), color[0])
     };
 
     m_device->DrawPrimitive(PRIMITIVE_TRIANGLE_STRIP, vertex, 4);
@@ -3567,10 +3567,10 @@ void CEngine::DrawOverColor()
 
     VertexCol vertex[4] =
     {
-        VertexCol(Math::Vector(p1.x, p1.y, 0.0f), color[1], color[2]),
-        VertexCol(Math::Vector(p1.x, p2.y, 0.0f), color[0], color[2]),
-        VertexCol(Math::Vector(p2.x, p1.y, 0.0f), color[1], color[2]),
-        VertexCol(Math::Vector(p2.x, p2.y, 0.0f), color[0], color[2])
+        VertexCol(Math::Vector(p1.x, p1.y, 0.0f), color[1]),
+        VertexCol(Math::Vector(p1.x, p2.y, 0.0f), color[0]),
+        VertexCol(Math::Vector(p2.x, p1.y, 0.0f), color[1]),
+        VertexCol(Math::Vector(p2.x, p2.y, 0.0f), color[0])
     };
 
     m_device->DrawPrimitive(PRIMITIVE_TRIANGLE_STRIP, vertex, 4);
diff --git a/src/graphics/engine/text.cpp b/src/graphics/engine/text.cpp
index da9f4ac..00b6617 100644
--- a/src/graphics/engine/text.cpp
+++ b/src/graphics/engine/text.cpp
@@ -150,8 +150,8 @@ void CText::FlushCache()
 }
 
 void CText::DrawText(const std::string &text, const std::vector<FontMetaChar> &format,
-                          float size, Math::Point pos, float width, TextAlign align,
-                          int eol)
+                     float size, Math::Point pos, float width, TextAlign align,
+                     int eol)
 {
     float sw = 0.0f;
 
@@ -172,8 +172,8 @@ void CText::DrawText(const std::string &text, const std::vector<FontMetaChar> &f
 }
 
 void CText::DrawText(const std::string &text, FontType font,
-                          float size, Math::Point pos, float width, TextAlign align,
-                          int eol)
+                     float size, Math::Point pos, float width, TextAlign align,
+                     int eol)
 {
     float sw = 0.0f;
 
@@ -194,8 +194,8 @@ void CText::DrawText(const std::string &text, FontType font,
 }
 
 void CText::SizeText(const std::string &text, const std::vector<FontMetaChar> &format,
-                          float size, Math::Point pos, TextAlign align,
-                          Math::Point &start, Math::Point &end)
+                     float size, Math::Point pos, TextAlign align,
+                     Math::Point &start, Math::Point &end)
 {
     start = end = pos;
 
@@ -217,8 +217,8 @@ void CText::SizeText(const std::string &text, const std::vector<FontMetaChar> &f
 }
 
 void CText::SizeText(const std::string &text, FontType font,
-                          float size, Math::Point pos, TextAlign align,
-                          Math::Point &start, Math::Point &end)
+                     float size, Math::Point pos, TextAlign align,
+                     Math::Point &start, Math::Point &end)
 {
     start = end = pos;
 
@@ -277,7 +277,7 @@ float CText::GetHeight(FontType font, float size)
 
 
 float CText::GetStringWidth(const std::string &text,
-                                 const std::vector<FontMetaChar> &format, float size)
+                            const std::vector<FontMetaChar> &format, float size)
 {
     assert(StrUtils::Utf8StringLength(text) == format.size());
 
@@ -344,7 +344,7 @@ float CText::GetCharWidth(UTF8Char ch, FontType font, float size, float offset)
 
 
 int CText::Justify(const std::string &text, const std::vector<FontMetaChar> &format,
-                        float size, float width)
+                   float size, float width)
 {
     assert(StrUtils::Utf8StringLength(text) == format.size());
 
@@ -427,7 +427,7 @@ int CText::Justify(const std::string &text, FontType font, float size, float wid
 }
 
 int CText::Detect(const std::string &text, const std::vector<FontMetaChar> &format,
-                       float size, float offset)
+                  float size, float offset)
 {
     assert(StrUtils::Utf8StringLength(text) == format.size());
 
@@ -500,7 +500,7 @@ int CText::Detect(const std::string &text, FontType font, float size, float offs
 }
 
 void CText::DrawString(const std::string &text, const std::vector<FontMetaChar> &format,
-                           float size, Math::Point pos, float width, int eol)
+                       float size, Math::Point pos, float width, int eol)
 {
     assert(StrUtils::Utf8StringLength(text) == format.size());
 
@@ -511,9 +511,10 @@ void CText::DrawString(const std::string &text, const std::vector<FontMetaChar>
 
     unsigned int fmtIndex = 0;
 
-    std::vector<UTF8Char> chars = StringToUTFCharList(text);
-    for(auto it=chars.begin(); it != chars.end(); ++it){
-
+    std::vector<UTF8Char> chars;
+    StringToUTFCharList(text, chars);
+    for (auto it = chars.begin(); it != chars.end(); ++it)
+    {
         font = static_cast<FontType>(format[fmtIndex] & FONT_MASK_FONT);
 
         // TODO: if (font == FONT_BUTTON)
@@ -546,37 +547,38 @@ void CText::DrawString(const std::string &text, const std::vector<FontMetaChar>
     // TODO: eol
 }
 
-std::vector<UTF8Char> CText::StringToUTFCharList(const std::string &text) {
-  std::vector<UTF8Char> v;
-  unsigned int index = 0;
-  while (index < text.length())
-  {
-    UTF8Char ch;
-
-    int len = StrUtils::Utf8CharSizeAt(text, index);
-    if (len >= 1)
-      ch.c1 = text[index];
-    if (len >= 2)
-      ch.c2 = text[index+1];
-    if (len >= 3)
-      ch.c3 = text[index+2];
-
-    index += len;
-
-    v.push_back(ch);
-  }
-  return v;
+void CText::StringToUTFCharList(const std::string &text, std::vector<UTF8Char> &chars)
+{
+    unsigned int index = 0;
+    while (index < text.length())
+    {
+        UTF8Char ch;
+
+        int len = StrUtils::Utf8CharSizeAt(text, index);
+        if (len >= 1)
+        ch.c1 = text[index];
+        if (len >= 2)
+        ch.c2 = text[index+1];
+        if (len >= 3)
+        ch.c3 = text[index+2];
+
+        index += len;
+
+        chars.push_back(ch);
+    }
 }
 
 void CText::DrawString(const std::string &text, FontType font,
-                            float size, Math::Point pos, float width, int eol)
+                       float size, Math::Point pos, float width, int eol)
 {
     assert(font != FONT_BUTTON);
 
     m_engine->SetState(ENG_RSTATE_TEXT);
 
-    std::vector<UTF8Char> chars = StringToUTFCharList(text);
-    for(auto it=chars.begin(); it != chars.end(); ++it){
+    std::vector<UTF8Char> chars;
+    StringToUTFCharList(text, chars);
+    for (auto it = chars.begin(); it != chars.end(); ++it)
+    {
         DrawCharAndAdjustPos(*it, font, size, pos);
     }
 }
diff --git a/src/graphics/engine/text.h b/src/graphics/engine/text.h
index 0ecf7cd..bb9a32d 100644
--- a/src/graphics/engine/text.h
+++ b/src/graphics/engine/text.h
@@ -293,11 +293,10 @@ protected:
                            float size, Math::Point pos, float width, int eol);
     void        DrawHighlight(FontHighlight hl, Math::Point pos, Math::Point size);
     void        DrawCharAndAdjustPos(UTF8Char ch, FontType font, float size, Math::Point &pos);
-    std::vector<UTF8Char>
-      StringToUTFCharList(const std::string &text);
+    void        StringToUTFCharList(const std::string &text, std::vector<UTF8Char> &chars);
 
 protected:
-    CInstanceManager*   m_iMan;
+    CInstanceManager* m_iMan;
     CEngine*       m_engine;
     CDevice*       m_device;
 
@@ -307,7 +306,7 @@ protected:
     std::map<FontType, MultisizeFont*> m_fonts;
 
     FontType     m_lastFontType;
-    int               m_lastFontSize;
+    int          m_lastFontSize;
     CachedFont*  m_lastCachedFont;
 };
 
diff --git a/src/graphics/opengl/gldevice.cpp b/src/graphics/opengl/gldevice.cpp
index 1f9c6b0..bbad0a7 100644
--- a/src/graphics/opengl/gldevice.cpp
+++ b/src/graphics/opengl/gldevice.cpp
@@ -101,7 +101,7 @@ bool CGLDevice::Create()
             return false;
         }
 
-        if ( (! GLEW_ARB_multitexture) || (! GLEW_EXT_texture_env_combine) || (! GLEW_EXT_secondary_color) )
+        if ( (! GLEW_ARB_multitexture) || (! GLEW_EXT_texture_env_combine) )
         {
             GetLogger()->Error("GLEW reports required extensions not supported\n");
             return false;
@@ -887,8 +887,6 @@ void CGLDevice::DrawPrimitive(PrimitiveType type, const VertexCol *vertices, int
     for (int i = 0; i < vertexCount; ++i)
     {
         glColor4fv(const_cast<GLfloat*>(vertices[i].color.Array()));
-        glSecondaryColor3fv(const_cast<GLfloat*>(vertices[i].specular.Array()));
-        glMultiTexCoord2fv(GL_TEXTURE0, const_cast<GLfloat*>(vertices[i].texCoord.Array()));
         glVertex3fv(const_cast<GLfloat*>(vertices[i].coord.Array()));
     }
 
@@ -1244,6 +1242,7 @@ void CGLDevice::SetFogParams(FogMode mode, const Color &color, float start, floa
     glFogf(GL_FOG_START,   start);
     glFogf(GL_FOG_END,     end);
     glFogf(GL_FOG_DENSITY, density);
+    glFogfv(GL_FOG_COLOR,  color.Array());
 }
 
 void CGLDevice::GetFogParams(FogMode &mode, Color &color, float &start, float &end, float &density)
@@ -1258,6 +1257,9 @@ void CGLDevice::GetFogParams(FogMode &mode, Color &color, float &start, float &e
     glGetFloatv(GL_FOG_START,   static_cast<GLfloat*>(&start));
     glGetFloatv(GL_FOG_END,     static_cast<GLfloat*>(&end));
     glGetFloatv(GL_FOG_DENSITY, static_cast<GLfloat*>(&density));
+    GLfloat col[4] = { 0.0f };
+    glGetFloatv(GL_FOG_COLOR,  col);
+    color = Color(col[0], col[1], col[2], col[3]);
 }
 
 void CGLDevice::SetCullMode(CullMode mode)