Maps a transfer buffer into application address space.
You must unmap the transfer buffer before encoding upload commands. The memory is owned by the graphics driver - do NOT call SDL_free() on the returned pointer.
a GPU context.
a transfer buffer.
if true, cycles the transfer buffer if it is already bound.
the address of the mapped transfer buffer memory, or NULL on failure; call SDL_GetError() for more information.
See Implementation
Maps a transfer buffer into application address space.
You must unmap the transfer buffer before encoding upload commands. The memory is owned by the graphics driver - do NOT call SDL_free() on the returned pointer.