Convert hot-loop functions to be inline

Makefile

@@ -44,8 +44,8 @@ _HEADERS = camera.h color.h engine.h geometry.h light.h loader.h matrix.h\
 		   platform.h point.h render.h transform.h util.h vec.h
 HEADERS = $(patsubst %,$(INCLUDE_DIR)/%,$(_HEADERS))
 
-_OBJS = color.o engine.o light.o loader.o main.o platform.o render.o\
-		transform.o vec.o
+_OBJS = engine.o light.o loader.o main.o platform.o render.o\
+		transform.o
 OBJS = $(patsubst %,$(BUILD_DIR)/%,$(_OBJS))
 
 $(BUILD_DIR)/%.o: $(SRC_DIR)/%.cpp $(HEADERS)

include/color.h

@@ -24,6 +24,8 @@ struct ColorF32
 };
 
 
+
+
 // OPERATORS
 // c1 + c2
 inline ColorF32 operator+(ColorF32 const &c1, ColorF32 const &c2)
@@ -107,7 +109,22 @@ inline ColorF32 &operator/=(ColorF32 &c, float f)
 
 
 // PUBLIC FUNCTIONS
-void ScaleColor(ColorF32 &c);
+inline void ScaleColor(ColorF32 &c)
+{
+    float blue = MAX(c.b, 0.0f);
+    float green = MAX(c.g, 0.0f);
+    float red = MAX(c.r, 0.0f);
+    float alpha = MAX(c.a, 0.0f);
+    float max = MAX(MAX(MAX(blue,green),red),1.0f);
+
+    ColorF32 scaled = {blue, green, red, alpha};
+    scaled /= max;
+
+    c.b = scaled.b;
+    c.g = scaled.g;
+    c.r = scaled.r;
+    c.a = scaled.a;
+}
 
 
 #define COLOR_H

include/vec.h

@@ -1,5 +1,8 @@
 #ifndef VEC_H
 
+#include "util.h"
+#include <cmath>
+
 
 // STRUCTURE
 struct Vector
@@ -100,10 +103,59 @@ inline Vector &operator/=(Vector &v, float f)
 
 
 // PUBLIC FUNCTIONS
-void VectorNormalize(Vector &v);
-float VectorLength(Vector &v);
-float VectorDot(Vector &v1, Vector &v2);
-Vector VectorCross(Vector &v1, Vector &v2);
+inline float VectorLength(Vector &v)
+{
+    float result = sqrtf(v.x * v.x + v.y * v.y + v.z * v.z);
+
+    // zero length
+    if (result < EPSILON_E3)
+    {
+        result = 0.0f;
+    }
+
+    return result;
+}
+
+inline void VectorNormalize(Vector &v)
+{
+    float length = VectorLength(v);
+
+    // zero length
+    if (length == 0.0f)
+    {
+        v.x = 0.0f;
+        v.y = 0.0f;
+        v.z = 0.0f;
+    }
+    else
+    {
+        float lengthInv = 1.0f / length;
+
+        v.x *= lengthInv;
+        v.y *= lengthInv;
+        v.z *= lengthInv;
+    }
+}
+
+inline Vector VectorCross(Vector &v1, Vector &v2)
+{
+    Vector result;
+
+    result.x = (v1.y * v2.z) - (v1.z * v2.y);
+    result.y = (v1.z * v2.x) - (v1.x * v2.z);
+    result.z = (v1.x * v2.y) - (v1.y * v2.x);
+
+    return result;
+}
+
+inline float VectorDot(Vector &v1, Vector &v2)
+{
+    float result;
+
+    result = (v1.x * v2.x) + (v1.y * v2.y) + (v1.z * v2.z);
+
+    return result;
+}
 
 
 #define VEC_H

src/color.cpp

@@ -1,20 +0,0 @@
-#include "color.h"
-
-
-void ScaleColor(ColorF32 &c)
-{
-    float blue = MAX(c.b, 0.0f);
-    float green = MAX(c.g, 0.0f);
-    float red = MAX(c.r, 0.0f);
-    float alpha = MAX(c.a, 0.0f);
-    float max = MAX(MAX(MAX(blue,green),red),1.0f);
-
-    ColorF32 scaled = {blue, green, red, alpha};
-    scaled /= max;
-
-    c.b = scaled.b;
-    c.g = scaled.g;
-    c.r = scaled.r;
-    c.a = scaled.a;
-}
-

src/engine.cpp

@@ -64,8 +64,8 @@ int EngineInit(char *objFilename, char *mtlFilename)
 
 
     // Mesh configuration
-    mesh.position.z = 125;
-    mesh.position.y = -125;
+    mesh.position.z = 200;
+    mesh.position.y = -100;
     mesh.scale = 1.0f;
 
 

src/vec.cpp

@@ -1,58 +0,0 @@
-#include "vec.h"
-#include "util.h"
-#include <cmath>
-
-
-void VectorNormalize(Vector &v)
-{
-    float length = VectorLength(v);
-
-    // zero length
-    if (length == 0.0f)
-    {
-        v.x = 0.0f;
-        v.y = 0.0f;
-        v.z = 0.0f;
-    }
-    else
-    {
-        float lengthInv = 1.0f / length;
-
-        v.x *= lengthInv;
-        v.y *= lengthInv;
-        v.z *= lengthInv;
-    }
-}
-
-float VectorLength(Vector &v)
-{
-    float result = sqrtf(v.x * v.x + v.y * v.y + v.z * v.z);
-
-    // zero length
-    if (result < EPSILON_E3)
-    {
-        result = 0.0f;
-    }
-
-    return result;
-}
-
-float VectorDot(Vector &v1, Vector &v2)
-{
-    float result;
-
-    result = (v1.x * v2.x) + (v1.y * v2.y) + (v1.z * v2.z);
-
-    return result;
-}
-
-Vector VectorCross(Vector &v1, Vector &v2)
-{
-    Vector result;
-
-    result.x = (v1.y * v2.z) - (v1.z * v2.y);
-    result.y = (v1.z * v2.x) - (v1.x * v2.z);
-    result.z = (v1.x * v2.y) - (v1.y * v2.x);
-
-    return result;
-}