Fix remaining Apple audio, depth, and speaking-indicator crashes (#39)

Stop the OpenAL wind path from spinning when unqueue fails. Allocate
Apple depth buffers with the unsized format and skip deferred lighting
when that allocation left the target empty. Remove every registration
of a speaking indicator, including a null one.

1 files changed, 7 insertions, 0 deletions

diff --git a/indra/newview/pipeline.cpp b/indra/newview/pipeline.cpp
index bccff55a2c..2b45892ff4 100644
--- a/indra/newview/pipeline.cpp
+++ b/indra/newview/pipeline.cpp
@@ -8906,6 +8906,13 @@ void LLPipeline::renderDeferredLighting()
     LLRenderTarget *screen_target         = &mRT->screen;
     LLRenderTarget* deferred_light_target = &mRT->deferredLight;
 
+    // A failed depth allocation leaves these targets with no textures.
+    // Binding them logs the empty-target warnings and then faults in the GL driver.
+    if (screen_target->getNumTextures() == 0)
+    {
+        return;
+    }
+
     {
         LL_PROFILE_ZONE_NAMED_CATEGORY_PIPELINE("deferred");
         LLViewerCamera *camera = LLViewerCamera::getInstance();