Mirrorlandia_minetest/minetest
1
0
Fork 1
mirror of https://github.com/minetest/minetest.git synced 2024-11-23 08:03:45 +01:00
Code Issues Packages Projects Releases Wiki Activity

Fix CMeshBuffer::append reallocating too eagerly (#14969)

Browse Source
This commit is contained in:
Desour 2024-08-14 21:34:15 +02:00 committed by SmallJoker
parent 53c2fbb4c4
commit a6f1242a11
1 changed files with 10 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
irr/include/CMeshBuffer.h
View File

@ -170,16 +170,21 @@ public:
return;
const u32 vertexCount = getVertexCount();
u32 i;
Vertices.reallocate(vertexCount + numVertices);
for (i = 0; i < numVertices; ++i) {
// Only reallocate if there are enough new vertices. Otherwise append()
// will be slow when called in a loop.
if (vertexCount + numVertices > Vertices.allocated_size() * 3 / 2)
Vertices.reallocate(vertexCount + numVertices);
for (u32 i = 0; i < numVertices; ++i) {
Vertices.push_back(static_cast<const T *>(vertices)[i]);
BoundingBox.addInternalPoint(static_cast<const T *>(vertices)[i].Pos);
}
Indices.reallocate(getIndexCount() + numIndices);
for (i = 0; i < numIndices; ++i) {
if (getIndexCount() + numIndices > Indices.allocated_size() * 3 / 2)
Indices.reallocate(getIndexCount() + numIndices);
for (u32 i = 0; i < numIndices; ++i) {
Indices.push_back(indices[i] + vertexCount);
}
}