From a0ae5a80d80c8e88318187268148021c6e4a55fa Mon Sep 17 00:00:00 2001
From: TothBenoit <benoit.tothdenimal@gmail.com>
Date: Mon, 16 Dec 2024 16:16:45 +0100
Subject: [PATCH] Fix memory patch in vhacd

---
 hl.sln               | 15 ++++++++-------
 libs/heaps/vhacd.cpp | 29 ++++++++++++++---------------
 2 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/hl.sln b/hl.sln
index 941457e8e..1ba82ed33 100644
--- a/hl.sln
+++ b/hl.sln
@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
-VisualStudioVersion = 17.12.35506.116 d17.12
+VisualStudioVersion = 17.12.35506.116
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "sdl", "libs\sdl\sdl.vcxproj", "{12049F27-EA26-4A33-ADF8-E542C4167C00}"
 	ProjectSection(ProjectDependencies) = postProject
@@ -17,17 +17,18 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "fmt", "libs\fmt\fmt.vcxproj
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "hl", "hl.vcxproj", "{BBF750D2-6DD2-4A41-AC3A-07C070B94FA1}"
 	ProjectSection(ProjectDependencies) = postProject
-		{76E4DB00-8114-4B96-BA76-39D800F8D5EE} = {76E4DB00-8114-4B96-BA76-39D800F8D5EE}
+		{12049F27-EA26-4A33-ADF8-E542C4167C00} = {12049F27-EA26-4A33-ADF8-E542C4167C00}
+		{43AAD9DB-4708-46B6-AAE8-A5DB95A0B573} = {43AAD9DB-4708-46B6-AAE8-A5DB95A0B573}
 		{540E0E11-B7B1-43F8-B107-0867B2D97F74} = {540E0E11-B7B1-43F8-B107-0867B2D97F74}
-		{7DDA1414-6675-45C7-8254-42057901F865} = {7DDA1414-6675-45C7-8254-42057901F865}
 		{6534D221-34DF-404A-AFCD-6DEC9BBC9798} = {6534D221-34DF-404A-AFCD-6DEC9BBC9798}
-		{12049F27-EA26-4A33-ADF8-E542C4167C00} = {12049F27-EA26-4A33-ADF8-E542C4167C00}
+		{76E4DB00-8114-4B96-BA76-39D800F8D5EE} = {76E4DB00-8114-4B96-BA76-39D800F8D5EE}
+		{7DDA1414-6675-45C7-8254-42057901F865} = {7DDA1414-6675-45C7-8254-42057901F865}
+		{C6213FBF-BC2B-4235-A827-84A60E848C52} = {C6213FBF-BC2B-4235-A827-84A60E848C52}
+		{E3F735ED-9701-46BE-A86C-C61D3CE0D525} = {E3F735ED-9701-46BE-A86C-C61D3CE0D525}
 		{EC2DCE5C-267A-4050-8DDE-5BF58FF08E31} = {EC2DCE5C-267A-4050-8DDE-5BF58FF08E31}
-		{F9A2435E-D545-43EB-B471-A4497D96A71B} = {F9A2435E-D545-43EB-B471-A4497D96A71B}
 		{EC79BC9F-9947-4BCC-92F9-14F90CDE4B04} = {EC79BC9F-9947-4BCC-92F9-14F90CDE4B04}
-		{C6213FBF-BC2B-4235-A827-84A60E848C52} = {C6213FBF-BC2B-4235-A827-84A60E848C52}
 		{F4D939D6-88D6-4FF2-874A-7BECF75A01C2} = {F4D939D6-88D6-4FF2-874A-7BECF75A01C2}
-		{43AAD9DB-4708-46B6-AAE8-A5DB95A0B573} = {43AAD9DB-4708-46B6-AAE8-A5DB95A0B573}
+		{F9A2435E-D545-43EB-B471-A4497D96A71B} = {F9A2435E-D545-43EB-B471-A4497D96A71B}
 	EndProjectSection
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "ui", "libs\ui\ui.vcxproj", "{6534D221-34DF-404A-AFCD-6DEC9BBC9798}"
diff --git a/libs/heaps/vhacd.cpp b/libs/heaps/vhacd.cpp
index e4456f7e0..813b8af75 100644
--- a/libs/heaps/vhacd.cpp
+++ b/libs/heaps/vhacd.cpp
@@ -4,7 +4,10 @@
 #include <VHACD.h>
 #include <hl.h>
 
-typedef VHACD::IVHACD vhacd;
+typedef struct {
+	VHACD::IVHACD* pInstance;
+	std::vector<VHACD::IVHACD::ConvexHull> convexHulls;
+} vhacd;
 
 struct convex_hull {
 	vbyte* points;
@@ -25,21 +28,22 @@ struct convex_hull {
 };
 
 HL_PRIM vhacd* HL_NAME(create_vhacd)() {
-    return VHACD::CreateVHACD();
+	return new vhacd{ VHACD::CreateVHACD() };
 }
 
 HL_PRIM bool HL_NAME(vhacd_compute)(vhacd* pVhacd, float* pPoints, uint32_t countPoints, uint32_t* pTriangles, uint32_t countTriangle, VHACD::IVHACD::Parameters* pParameters ) {
-    return pVhacd->Compute(pPoints, countPoints, pTriangles, countTriangle, *pParameters);
+	return pVhacd->pInstance->Compute(pPoints, countPoints, pTriangles, countTriangle, *pParameters);
 }
 
 HL_PRIM int HL_NAME(vhacd_get_n_convex_hulls)(vhacd* pVhacd) {
-	return pVhacd->GetNConvexHulls();
+	return pVhacd->pInstance->GetNConvexHulls();
 }
 
 HL_PRIM bool HL_NAME(vhacd_get_convex_hull)(vhacd* pVhacd, int index, convex_hull* pConvexHull ) {
-	VHACD::IVHACD::ConvexHull convexHull;
-	if ( !pVhacd->GetConvexHull(index, convexHull) )
-	   return false;
+	pVhacd->convexHulls.emplace_back();
+	VHACD::IVHACD::ConvexHull& convexHull = pVhacd->convexHulls.back();
+	if ( !pVhacd->pInstance->GetConvexHull(index, convexHull) )
+		return false;
 
 	pConvexHull->points = (vbyte*)convexHull.m_points.data();
 	pConvexHull->pointCount = (int)convexHull.m_points.size();
@@ -57,21 +61,16 @@ HL_PRIM bool HL_NAME(vhacd_get_convex_hull)(vhacd* pVhacd, int index, convex_hul
 	pConvexHull->boundsMaxY = convexHull.mBmax[1];
 	pConvexHull->boundsMaxZ = convexHull.mBmax[2];
 
-	// To avoid freeing convex hull memory
-	std::vector<VHACD::Vertex> fakePoints{};
-	convexHull.m_points = fakePoints;
-	std::vector<VHACD::Triangle> fakeTriangles{};
-	convexHull.m_triangles = fakeTriangles;
-
 	return true;
 }
 
 HL_PRIM void HL_NAME(vhacd_clean)(vhacd* pVhacd) {
-    pVhacd->Clean();
+	pVhacd->pInstance->Clean();
 }
 
 HL_PRIM void HL_NAME(vhacd_release)(vhacd* pVhacd) {
-	pVhacd->Release();
+	pVhacd->pInstance->Release();
+	delete pVhacd;
 }
 
 #define _VHACD _ABSTRACT(vhacd)