Add handling for downrezzing textures when viewer is minimized, fix downrezzing textures when minimized due to texture system not processesing

1 files changed, 29 insertions, 0 deletions

diff --git a/indra/newview/llviewerdisplay.cpp b/indra/newview/llviewerdisplay.cpp
index 8c6a38876a..3642c2a339 100644
--- a/indra/newview/llviewerdisplay.cpp
+++ b/indra/newview/llviewerdisplay.cpp
@@ -455,6 +455,35 @@ void display(bool rebuild, F32 zoom_factor, int subfield, bool for_snapshot)
             // true = minimized, do not show/update the TP screen. HB
             update_tp_display(true);
         }
+
+        // Run texture subsystem to discard memory while backgrounded
+        if (!gNonInteractive)
+        {
+            LL_PROFILE_ZONE_NAMED("Update Images");
+
+            {
+                LL_PROFILE_ZONE_NAMED_CATEGORY_DISPLAY("Class");
+                LLViewerTexture::updateClass();
+            }
+
+            {
+                LL_PROFILE_ZONE_NAMED_CATEGORY_DISPLAY("Image Update Bump");
+                gBumpImageList.updateImages();  // must be called before gTextureList version so that it's textures are thrown out first.
+            }
+
+            {
+                LL_PROFILE_ZONE_NAMED_CATEGORY_DISPLAY("List");
+                F32 max_image_decode_time = 0.050f * gFrameIntervalSeconds.value();          // 50 ms/second decode time
+                max_image_decode_time     = llclamp(max_image_decode_time, 0.002f, 0.005f);  // min 2ms/frame, max 5ms/frame)
+                gTextureList.updateImages(max_image_decode_time);
+            }
+
+            {
+                LL_PROFILE_ZONE_NAMED_CATEGORY_DISPLAY("GLTF Materials Cleanup");
+                // remove dead gltf materials
+                gGLTFMaterialList.flushMaterials();
+            }
+        }
         return;
     }