Fix some warnings

src/modules/graphics/opengl/Font.cpp

@@ -267,11 +267,11 @@ namespace opengl
 				// on wordwrap, push line to line buffer and clear string builder
 				if (width >= wrap && oldwidth > 0)
 				{
-					int realw = width;
+					int realw = (int) width;
 					lines_to_draw.push_back( string_builder.str() );
 					string_builder.str( "" );
 					width = static_cast<float>(getWidth( word ));
-					realw -= width;
+					realw -= (int) width;
 					if (realw > maxw)
 						maxw = realw;
 				}
@@ -281,7 +281,7 @@ namespace opengl
 			}
 			// push last line
 			if (width > maxw)
-				maxw = width;
+				maxw = (int) width;
 			lines_to_draw.push_back( string_builder.str() );
 		}
 

src/modules/graphics/opengl/Graphics.cpp

@@ -775,10 +775,10 @@ namespace opengl
 		if (overdraw_top && overdraw_bottom)
 		{
 			overdraw_top[pos]   = vertices[pos];
-			overdraw_top[pos+1] = vertices[pos] * halo + q * (1. - halo);
+			overdraw_top[pos+1] = vertices[pos] * halo + q * (1.f - halo);
 
 			overdraw_bottom[pos]   = vertices[pos+1];
-			overdraw_bottom[pos+1] = vertices[pos+1] * halo + q * (1. - halo);
+			overdraw_bottom[pos+1] = vertices[pos+1] * halo + q * (1.f - halo);
 		}
 	}
 
@@ -800,7 +800,7 @@ namespace opengl
 		// get line vertex boundaries
 		// if not looping, extend the line at the beginning, else use last point as `p'
 		float halfwidth = lineWidth/2.0f;
-		float halo = 1. + 1./halfwidth; // XXX: customizable?
+		float halo = 1.f + 1.f/halfwidth; // XXX: customizable?
 		r = Vector(coords[0], coords[1]);
 		if (!looping)
 			q = r * 2 - Vector(coords[2], coords[3]);
@@ -837,10 +837,10 @@ namespace opengl
 			// odd indices point to outer vertices => alpha = 0.
 			Colorf tmp;
 			glGetFloatv(GL_CURRENT_COLOR, (GLfloat*)(&tmp));
-			Color color(tmp.r * 255.0f, tmp.g * 255.0f, tmp.b * 255.0f, tmp.a * 255.0f);
+			Color color((unsigned char) (tmp.r * 255.0f), (unsigned char) (tmp.g * 255.0f), (unsigned char) (tmp.b * 255.0f), (unsigned char) (tmp.a * 255.0f));
 
 			Color *colors = new Color[count];
-			for (int i = 0; i < count; ++i)
+			for (unsigned int i = 0; i < count; ++i)
 			{
 				colors[i] = color;
 				colors[i].a *= int(i%2 == 0); // avoids branching. equiv to colors[i].a *= (i%2==0) ? 1 : 0;

src/modules/graphics/opengl/Image.cpp

@@ -389,7 +389,7 @@ namespace opengl
 
 	bool Image::hasNpot()
 	{
-		return GLEE_ARB_texture_non_power_of_two;
+		return GLEE_ARB_texture_non_power_of_two != 0;
 	}
 
 } // opengl

src/modules/graphics/opengl/Quad.cpp

@@ -108,9 +108,9 @@ namespace opengl
 		for (size_t i = 0; i < NUM_VERTICES; ++i)
 		{
 			if (x)
-				vertices[i].s = 1.0 - vertices[i].s;
+				vertices[i].s = 1.0f - vertices[i].s;
 			if (y)
-				vertices[i].t = 1.0 - vertices[i].t;
+				vertices[i].t = 1.0f - vertices[i].t;
 		}
 	}
 

src/modules/graphics/opengl/wrap_Graphics.cpp

@@ -1019,7 +1019,7 @@ namespace opengl
 		float radius = (float)luaL_checknumber(L, 4);
 		int points;
 		if (lua_isnoneornil(L, 5))
-			points = radius > 10 ? radius : 10;
+			points = radius > 10 ? (int) (radius) : 10;
 		else
 			points = luaL_checkint(L, 5);
 
@@ -1041,7 +1041,7 @@ namespace opengl
 		float angle2 = (float)luaL_checknumber(L, 6);
 		int points;
 		if (lua_isnoneornil(L, 7))
-			points = radius > 10 ? radius : 10;
+			points = radius > 10 ? (int) (radius) : 10;
 		else
 			points = luaL_checkint(L, 7);