Some drivers (at least the Intel drivers on Windows) are slow at
incrementally updating a VBO with hundreds of calls to glBufferSubData
every frame. Performance is significantly better if you use
glBufferData(NULL) to tell it to discard all the previous contents, and
then re-upload all the data at once.
Update CVertexBuffer so that GL_DYNAMIC_DRAW/GL_STREAM_DRAW buffers are
handled with the new mechanism. This requires the caller to hold onto
the backing store so it can be re-uploaded when necessary, and needs a
bit more signalling to indicate exactly what needs uploading.
I see an improvement from roughly 60 to 75 fps on Intel HD Graphics
3000, Windows, 1024x768, Siwa Oasis.
This was SVN commit r16241.
Changes GetProperty, SetProperty and HasProperty and a few other
functions to take handles. The conversions to CScriptVal or
CScriptValRooted at some places should be removed in the future. I've
done that to avoid an even larger patch.
Refs #2415
Refs #2462
This was SVN commit r15568.
Each GUI Page gets its own compartment and all ScriptInterfaces in the
same thread should now use the same JS Runtime.
This is required for the SpiderMonkey upgrade.
Check the ticket for details.
Closes#2241
Refs #1886
Refs #1966
This was SVN commit r14496.
Switch all the constant strings in graphics code to use the new
variables.
This avoids the cost of instantiating CStrInterns at runtime every
frame.
This was SVN commit r13906.
the old debug_assert always ran and tested the expression, which slows
down release builds. wrapping them in #ifndef NDEBUG is clumsy. the new
ASSERT behaves like assert and ENSURE like the old debug_assert. Let's
change any time-critical but not-super-important ENSURE to ASSERT to
speed up release builds. (already done in bits.h and unique_range.h)
This was SVN commit r9362.
Allows hotkey handling of mousewheel events after minimap. Fixes#673.
Adds SendEvent to GUI objects, used in place of separate calls to
HandleMessage and ScriptEvent.
This was SVN commit r9340.
Enable SpiderMonkey method JIT in Release mode.
Add Engine.ProfileStart/Engine.ProfileStop functions for scripts.
Fix AI to clone initial entity data and shared metadata.
This was SVN commit r9003.
Replace almost all texture uses with calls to the new system.
Add some anistropic filtering to terrain textures.
Let Atlas load terrain texture previews partly-asynchronously by
polling.
Fix inefficient texture colour determination for minimap.
Remove unused global g_TerrainModified.
Change GUI texcoord computation to be less efficient but to cope with
dynamic texture changes.
Fix GUI renderer effects leaving bogus colour state.
This was SVN commit r8099.
