Review exposed #defines and allow user re-defining

There are multiple #define values around raylib, usually not exposed for redefinition, just reviewed all of them to allow users redefining them on compile time if required.

Also, multiple #define have been renamed and commented.

1 files changed, 17 insertions, 15 deletions

diff --git a/src/models.c b/src/models.c
index 8b013ea5..7e174cae 100644
--- a/src/models.c
+++ b/src/models.c
@@ -92,7 +92,9 @@
 //----------------------------------------------------------------------------------
 // Defines and Macros
 //----------------------------------------------------------------------------------
-#define MAX_MESH_VBO    7               // Maximum number of vbo per mesh
+#ifndef DEFAULT_MESH_VERTEX_BUFFERS
+    #define DEFAULT_MESH_VERTEX_BUFFERS    7    // Number of vertex buffers (VBO) per mesh
+#endif
 
 //----------------------------------------------------------------------------------
 // Types and Structures Definition
@@ -1224,7 +1226,7 @@ bool IsModelAnimationValid(Model model, ModelAnimation anim)
 Mesh GenMeshPoly(int sides, float radius)
 {
     Mesh mesh = { 0 };
-    mesh.vboId = (unsigned int *)RL_CALLOC(MAX_MESH_VBO, sizeof(unsigned int));
+    mesh.vboId = (unsigned int *)RL_CALLOC(DEFAULT_MESH_VERTEX_BUFFERS, sizeof(unsigned int));
     int vertexCount = sides*3;
 
     // Vertices definition
@@ -1287,7 +1289,7 @@ Mesh GenMeshPoly(int sides, float radius)
 Mesh GenMeshPlane(float width, float length, int resX, int resZ)
 {
     Mesh mesh = { 0 };
-    mesh.vboId = (unsigned int *)RL_CALLOC(MAX_MESH_VBO, sizeof(unsigned int));
+    mesh.vboId = (unsigned int *)RL_CALLOC(DEFAULT_MESH_VERTEX_BUFFERS, sizeof(unsigned int));
 
 #define CUSTOM_MESH_GEN_PLANE
 #if defined(CUSTOM_MESH_GEN_PLANE)
@@ -1390,7 +1392,7 @@ Mesh GenMeshPlane(float width, float length, int resX, int resZ)
     mesh.vertices = (float *)RL_MALLOC(plane->ntriangles*3*3*sizeof(float));
     mesh.texcoords = (float *)RL_MALLOC(plane->ntriangles*3*2*sizeof(float));
     mesh.normals = (float *)RL_MALLOC(plane->ntriangles*3*3*sizeof(float));
-    mesh.vboId = (unsigned int *)RL_CALLOC(MAX_MESH_VBO, sizeof(unsigned int));
+    mesh.vboId = (unsigned int *)RL_CALLOC(DEFAULT_MESH_VERTEX_BUFFERS, sizeof(unsigned int));
 
     mesh.vertexCount = plane->ntriangles*3;
     mesh.triangleCount = plane->ntriangles;
@@ -1422,7 +1424,7 @@ Mesh GenMeshPlane(float width, float length, int resX, int resZ)
 Mesh GenMeshCube(float width, float height, float length)
 {
     Mesh mesh = { 0 };
-    mesh.vboId = (unsigned int *)RL_CALLOC(MAX_MESH_VBO, sizeof(unsigned int));
+    mesh.vboId = (unsigned int *)RL_CALLOC(DEFAULT_MESH_VERTEX_BUFFERS, sizeof(unsigned int));
 
 #define CUSTOM_MESH_GEN_CUBE
 #if defined(CUSTOM_MESH_GEN_CUBE)
@@ -1588,7 +1590,7 @@ par_shapes_mesh* par_shapes_create_icosahedron();       // 20 sides polyhedron
 RLAPI Mesh GenMeshSphere(float radius, int rings, int slices)
 {
     Mesh mesh = { 0 };
-    mesh.vboId = (unsigned int *)RL_CALLOC(MAX_MESH_VBO, sizeof(unsigned int));
+    mesh.vboId = (unsigned int *)RL_CALLOC(DEFAULT_MESH_VERTEX_BUFFERS, sizeof(unsigned int));
 
     par_shapes_mesh *sphere = par_shapes_create_parametric_sphere(slices, rings);
     par_shapes_scale(sphere, radius, radius, radius);
@@ -1627,7 +1629,7 @@ RLAPI Mesh GenMeshSphere(float radius, int rings, int slices)
 RLAPI Mesh GenMeshHemiSphere(float radius, int rings, int slices)
 {
     Mesh mesh = { 0 };
-    mesh.vboId = (unsigned int *)RL_CALLOC(MAX_MESH_VBO, sizeof(unsigned int));
+    mesh.vboId = (unsigned int *)RL_CALLOC(DEFAULT_MESH_VERTEX_BUFFERS, sizeof(unsigned int));
 
     par_shapes_mesh *sphere = par_shapes_create_hemisphere(slices, rings);
     par_shapes_scale(sphere, radius, radius, radius);
@@ -1666,7 +1668,7 @@ RLAPI Mesh GenMeshHemiSphere(float radius, int rings, int slices)
 Mesh GenMeshCylinder(float radius, float height, int slices)
 {
     Mesh mesh = { 0 };
-    mesh.vboId = (unsigned int *)RL_CALLOC(MAX_MESH_VBO, sizeof(unsigned int));
+    mesh.vboId = (unsigned int *)RL_CALLOC(DEFAULT_MESH_VERTEX_BUFFERS, sizeof(unsigned int));
 
     // Instance a cylinder that sits on the Z=0 plane using the given tessellation
     // levels across the UV domain.  Think of "slices" like a number of pizza
@@ -1726,7 +1728,7 @@ Mesh GenMeshCylinder(float radius, float height, int slices)
 Mesh GenMeshTorus(float radius, float size, int radSeg, int sides)
 {
     Mesh mesh = { 0 };
-    mesh.vboId = (unsigned int *)RL_CALLOC(MAX_MESH_VBO, sizeof(unsigned int));
+    mesh.vboId = (unsigned int *)RL_CALLOC(DEFAULT_MESH_VERTEX_BUFFERS, sizeof(unsigned int));
 
     if (radius > 1.0f) radius = 1.0f;
     else if (radius < 0.1f) radius = 0.1f;
@@ -1769,7 +1771,7 @@ Mesh GenMeshTorus(float radius, float size, int radSeg, int sides)
 Mesh GenMeshKnot(float radius, float size, int radSeg, int sides)
 {
     Mesh mesh = { 0 };
-    mesh.vboId = (unsigned int *)RL_CALLOC(MAX_MESH_VBO, sizeof(unsigned int));
+    mesh.vboId = (unsigned int *)RL_CALLOC(DEFAULT_MESH_VERTEX_BUFFERS, sizeof(unsigned int));
 
     if (radius > 3.0f) radius = 3.0f;
     else if (radius < 0.5f) radius = 0.5f;
@@ -1813,7 +1815,7 @@ Mesh GenMeshHeightmap(Image heightmap, Vector3 size)
     #define GRAY_VALUE(c) ((c.r+c.g+c.b)/3)
 
     Mesh mesh = { 0 };
-    mesh.vboId = (unsigned int *)RL_CALLOC(MAX_MESH_VBO, sizeof(unsigned int));
+    mesh.vboId = (unsigned int *)RL_CALLOC(DEFAULT_MESH_VERTEX_BUFFERS, sizeof(unsigned int));
 
     int mapX = heightmap.width;
     int mapZ = heightmap.height;
@@ -1947,7 +1949,7 @@ Mesh GenMeshHeightmap(Image heightmap, Vector3 size)
 Mesh GenMeshCubicmap(Image cubicmap, Vector3 cubeSize)
 {
     Mesh mesh = { 0 };
-    mesh.vboId = (unsigned int *)RL_CALLOC(MAX_MESH_VBO, sizeof(unsigned int));
+    mesh.vboId = (unsigned int *)RL_CALLOC(DEFAULT_MESH_VERTEX_BUFFERS, sizeof(unsigned int));
 
     Color *cubicmapPixels = GetImageData(cubicmap);
 
@@ -2889,7 +2891,7 @@ static Model LoadOBJ(const char *fileName)
             mesh.vertices = (float *)RL_CALLOC(mesh.vertexCount*3, sizeof(float));
             mesh.texcoords = (float *)RL_CALLOC(mesh.vertexCount*2, sizeof(float));
             mesh.normals = (float *)RL_CALLOC(mesh.vertexCount*3, sizeof(float));
-            mesh.vboId = (unsigned int *)RL_CALLOC(MAX_MESH_VBO, sizeof(unsigned int));
+            mesh.vboId = (unsigned int *)RL_CALLOC(DEFAULT_MESH_VERTEX_BUFFERS, sizeof(unsigned int));
 
             int vCount = 0;
             int vtCount = 0;
@@ -3161,7 +3163,7 @@ static Model LoadIQM(const char *fileName)
         model.meshes[i].animVertices = RL_CALLOC(model.meshes[i].vertexCount*3, sizeof(float));
         model.meshes[i].animNormals = RL_CALLOC(model.meshes[i].vertexCount*3, sizeof(float));
 
-        model.meshes[i].vboId = (unsigned int *)RL_CALLOC(MAX_MESH_VBO, sizeof(unsigned int));
+        model.meshes[i].vboId = (unsigned int *)RL_CALLOC(DEFAULT_MESH_VERTEX_BUFFERS, sizeof(unsigned int));
     }
 
     // Triangles data processing
@@ -3551,7 +3553,7 @@ static Model LoadGLTF(const char *fileName)
         model.materials = RL_MALLOC(model.materialCount*sizeof(Material));
         model.meshMaterial = RL_MALLOC(model.meshCount*sizeof(int));
 
-        for (int i = 0; i < model.meshCount; i++) model.meshes[i].vboId = (unsigned int *)RL_CALLOC(MAX_MESH_VBO, sizeof(unsigned int));
+        for (int i = 0; i < model.meshCount; i++) model.meshes[i].vboId = (unsigned int *)RL_CALLOC(DEFAULT_MESH_VERTEX_BUFFERS, sizeof(unsigned int));
 
         for (int i = 0; i < model.materialCount - 1; i++)
         {