From 2dda82ef5608ee07cf79db7e7bb118a62957678b Mon Sep 17 00:00:00 2001
From: Alessandro Muntoni <muntoni.alessandro@gmail.com>
Date: Thu, 23 Nov 2023 14:01:38 +0100
Subject: [PATCH] small fixes

---
 include/vclib/io/image.h                   |  2 +-
 include/vclib/render/mesh_render_buffers.h | 26 +++++++++++++---------
 2 files changed, 16 insertions(+), 12 deletions(-)

diff --git a/include/vclib/io/image.h b/include/vclib/io/image.h
index 321130c2a..2caa58a55 100644
--- a/include/vclib/io/image.h
+++ b/include/vclib/io/image.h
@@ -38,7 +38,7 @@
 
 namespace vcl {
 
-std::shared_ptr<unsigned char> loadImageData(
+inline std::shared_ptr<unsigned char> loadImageData(
     const std::string& filename,
     int&               w,
     int&               h)
diff --git a/include/vclib/render/mesh_render_buffers.h b/include/vclib/render/mesh_render_buffers.h
index 4a894a298..bdeb1bfa7 100644
--- a/include/vclib/render/mesh_render_buffers.h
+++ b/include/vclib/render/mesh_render_buffers.h
@@ -37,9 +37,6 @@ namespace vcl {
 template<MeshConcept MeshType>
 class MeshRenderBuffers
 {
-    uint nv = 0;
-    uint nt = 0;
-
     std::vector<float>    verts;
     std::vector<uint32_t> tris;
     std::vector<float>    vNormals;
@@ -66,9 +63,9 @@ class MeshRenderBuffers
         fillMeshAttribs(m);
     }
 
-    uint vertexNumber() const { return nv; }
+    uint vertexNumber() const { return verts.size() / 3; }
 
-    uint triangleNumber() const { return nt; }
+    uint triangleNumber() const { return tris.size() / 3; }
 
     uint textureNumber() const { return textures.size(); }
 
@@ -88,6 +85,11 @@ class MeshRenderBuffers
         return verts.data();
     }
 
+    const uint vertexBufferSize() const
+    {
+        return verts.size();
+    }
+
     const uint32_t* triangleBufferData() const
     {
         if (tris.empty())
@@ -95,6 +97,11 @@ class MeshRenderBuffers
         return tris.data();
     }
 
+    const uint triangleBufferSize() const
+    {
+        return tris.size();
+    }
+
     const float* vertexNormalBufferData() const
     {
         if (vNormals.empty())
@@ -181,8 +188,7 @@ class MeshRenderBuffers
                 std::numeric_limits<double>::lowest());
         }
 
-        nv = m.vertexNumber();
-        verts.resize(nv * 3);
+        verts.resize(m.vertexNumber() * 3);
 
         if constexpr (vcl::HasPerVertexNormal<MeshType>) {
             if (vcl::isPerVertexNormalAvailable(m)) {
@@ -249,9 +255,7 @@ class MeshRenderBuffers
             std::vector<std::vector<uint>> vinds; // necessary for wedge attribs
 
             if constexpr (vcl::HasTriangles<MeshType>) {
-                nt = m.faceNumber();
-
-                tris.resize(nt * 3);
+                tris.resize(m.faceNumber() * 3);
 
                 uint i = 0;
                 for (const auto& f : m.faces()) {
@@ -266,7 +270,7 @@ class MeshRenderBuffers
                 triPolyMap.reserve(m.faceNumber(), m.faceNumber());
                 tris.reserve(m.faceNumber());
 
-                nt = 0;
+                uint nt = 0;
                 for (const auto& f : m.faces()) {
                     if (f.vertexNumber() == 3) {
                         triPolyMap.insert(nt, m.faceIndexIfCompact(m.index(f)));