Will the GC scan this pointer?
Lass Safin via Digitalmars-d-learn
digitalmars-d-learn at puremagic.com
Sun Apr 24 04:03:11 PDT 2016
// Omitting the required imports.
void[] ptr;
void main() {
uint buffer;
glCreateBuffers(1, &buffer);
// Filling the buffer with data and such...
ptr = glMapNamedBufferRange(buffer, 0, 512, GL_MAP_WRITE_BIT
| GL_MAP_PERSISTENT_BIT | GL_MAP_COHERENT)[0 .. 512];
}
So the question is: Will the GC scan ptr? As you can see, it is a
write-only pointer, so reading from it will cause undefined
behavior (such as return data which looks like a pointer to
data..), and can potentially be reallly slow.
Do I have to mark it with NO_SCAN each time I call
glMapNamedBufferRange?
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