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TINYGL: Added safety checks to Linear Allocator.

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This commit is contained in:
Stefano Musumeci 2014-08-15 23:45:45 +02:00
parent 957fa20c30
commit e1aea3a1f3
1 changed files with 6 additions and 1 deletions
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7
graphics/tinygl/zgl.h
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@ -214,6 +214,9 @@ public:
void initialize(size_t newSize) {
assert(_memoryBuffer == nullptr);
void *newBuffer = gl_malloc(newSize);
if (newBuffer == nullptr) {
error("Couldn't allocate memory for linear allocator.");
}
_memoryBuffer = newBuffer;
_memorySize = newSize;
}
@ -225,7 +228,9 @@ public:
}
void *allocate(size_t size) {
assert (_memoryPosition + size < _memorySize);
if (_memoryPosition + size >= _memorySize) {
error("Allocator out of memory: couldn't allocate more memory from linear allocator.");
}
int returnPos = _memoryPosition;
_memoryPosition += size;
return ((char *)_memoryBuffer) + returnPos;