Standard OpenAL does not spatialize non-mono sounds, although the game has some
stereo sounds meant to play in 3D. The desired behavior can be achieved with
the AL_SOFT_source_spatialize extension.
Rather than checking every frame you're near the water, only check when the
current cell changed (the sfx will only change when moving between interior and
exterior). It also doesn't need to look through all playing sounds, as it's a
local one not attached to a Ptr.
This should allow OpenMW to work better with git versions of openscenegraph. OSG dev version 3.5.5 added the setting of thread affinity for the main thread. The problem is that in the boost/standard threading libraries, the affinity of a thread is inherited by any further threads launched from that thread, leading to these threads always running on the same core as the main thread unless you tell them not to.
With OpenThreads, the default affinity of a thread is none, no matter what parent thread it was launched from.
So, when using custom threading with OSG 3.6+, we have these options:
1. explicitely tell OSG to *not* set the thread affinity
or 2. explicitely set the thread affinity of additional threads created (possible with boost, but not possible with std::thread)
or 3. use OpenThreads
or 4. accept the suboptimal performance of non-OSG threads (in OpenMW's case the sound streaming & video threads) running on the same core as the main thread
This patch opts for 3.)
Reference: http://forum.openscenegraph.org/viewtopic.php?t=16158
Instead of getting the loudness data for the whole file in advance, we now get it piece by piece as the sound is streamed.
The benefit is that we need to decode the audio just once instead of twice.
We no longer need to rewind() the stream when the first decoding is done, this should hopefully fix bug #3453 .
In between the startUpdate/finishUpdate calls, changes are deferred so that
they can happen all at once. This includes starting sounds, so when the
underwater sound is started it will be immediately checked to see if it's
playing. Since it's not yet playing, it'll be seen as stopped and get cleaned
up before ever playing.
Can't instantiate a container (at least with MSVC) without knowing the exact size of the object being stored, forward-declares only work with pointers.
I couldn't see a simple way to remove the forward declare, so pointers and memory management it is.
This helps avoid a lock during the movie player's read method, since it needs
to sync with the current playback position which would otherwise need to get
the movie decoder's current position.
The cache size is specified with a min/max range, intended to avoid constant
unloading once the limit is reached. This way, buffers can be unloaded down to
a reasonable mimimum, allowing some more buffers to be subsequently loaded
without causing more unloading.
A deque allows existing Sound_Buffer references to remain valid as long as new
ones are back-inserted. These references can be used instead of indices.
Certain OpenAL implementations, including Rapture3D, Creative's hardware
drivers, and more recent versions of OpenAL Soft, can batch together changes so
that they all occur at once, avoiding potential discontinuities with one sound
being changed before another, or the listeenr being changed before sounds are.
On other implementaitons, this is a no-op and maintains existing behavior.
Chris Robinson
Andrei Kortunov
Harry
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Harry
Lennart Bernhardt
Allofich
Bret Curtis
Ewan Higgs
MiroslavR
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Jules Blok
Marc Zinnschlag
Alexander "Ace" Olofsson