mirror/Aquaria
1
0
Fork 0
mirror of https://github.com/AquariaOSE/Aquaria.git synced 2024-11-25 17:53:47 +00:00
Code Issues Releases Wiki Activity

fix possible crash in GridRender

Browse source 
probably introduced in 22c8471bf2
This commit is contained in:
fgenesis 2024-02-06 01:34:20 +01:00
parent 5a24f2868b
commit cd46cc24fa
1 changed files with 17 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

32
Aquaria/GridRender.cpp
View file

@ -95,25 +95,27 @@ void GridRender::rebuildBuffers(const std::vector<ObsRow>& rows)
{
const size_t H = game->getGridSize().y;
primIndexInLine.resize(H);
size_t lasty = 0;
size_t lastidx = 0;
for(size_t i = 0; i < N; ++i)
if(H)
{
const ObsRow& row = rows[i];
assert(row.ty >= lasty); // rows must be sorted, lowest y first
if(row.ty > lasty)
size_t lasty = 0;
size_t lastidx = 0;
for(size_t i = 0; i < N; ++i)
{
// Handle this correctly even if there is no row on some lines
for(size_t y = lasty; y < row.ty; ++y)
primIndexInLine[y] = lastidx;
lasty = row.ty;
lastidx = i * 6;
const ObsRow& row = rows[i];
assert(row.ty >= lasty); // rows must be sorted, lowest y first
if(row.ty > lasty)
{
// Handle this correctly even if there is no row on some lines
for(size_t y = lasty; y < row.ty; ++y)
primIndexInLine[y] = lastidx;
lasty = row.ty;
lastidx = i * 6;
}
}
}
// Don't bother filling the rest, anything beyond the end is eval'd as primsToDraw
primIndexInLine.resize(lasty);
// Don't bother filling the rest, anything beyond the end is eval'd as primsToDraw
primIndexInLine.resize(lasty);
}
}
// 2 tris = 6 verts per ObsRow, each vertex is 2x uint16, makes 24b per quad.