Merge pull request #6029 from secondlife/geenz/26.3-texture-streaming-revert

Remove texture streaming changes from 26.3

1 files changed, 4 insertions, 27 deletions

diff --git a/indra/newview/llviewerdisplay.cpp b/indra/newview/llviewerdisplay.cpp
index be83fd0279..0d50ba6fe2 100644
--- a/indra/newview/llviewerdisplay.cpp
+++ b/indra/newview/llviewerdisplay.cpp
@@ -140,27 +140,6 @@ void render_disconnected_background();
 void getProfileStatsContext(boost::json::object& stats);
 std::string getProfileStatsFilename();
 
-// Adaptive texture-pipeline budget: spend the frame-time headroom between the
-// frame we're rendering and TextureLoadTargetFPS, clamped [2ms, max]. Headroom
-// is measured (smoothed frame interval minus the pipeline's own last spend),
-// so fast machines get big budgets and machines already at target hold the
-// floor. Only consumed while queues have work - drain loops exit when empty.
-static F32 sTexturePipelineSpent = 0.f;
-static F32 texture_pipeline_budget()
-{
-    static LLCachedControl<F32> target_fps(gSavedSettings, "TextureLoadTargetFPS", 60.f);
-    static LLCachedControl<F32> max_ms(gSavedSettings, "TextureLoadBudgetMaxMS", 10.f);
-    static F32 smoothed_other = 0.008f;
-    F32 other = llmax(gFrameIntervalSeconds.value() - sTexturePipelineSpent, 0.f);
-    // A single multi-second hitch must not crater the budget for the following
-    // frames, so cap the sample before it enters the EMA.
-    other = llmin(other, 0.1f);
-    smoothed_other = smoothed_other * 0.9f + other * 0.1f;
-    F32 target_interval = 1.f / llclamp((F32)target_fps, 15.f, 240.f);
-    F32 headroom = target_interval - smoothed_other;
-    return llclamp(headroom, 0.002f, llclamp((F32)max_ms, 2.f, 50.f) * 0.001f);
-}
-
 void display_startup()
 {
     if (   !gViewerWindow
@@ -521,10 +500,9 @@ void display(bool rebuild, F32 zoom_factor, int subfield, bool for_snapshot)
 
             {
                 LL_PROFILE_ZONE_NAMED_CATEGORY_DISPLAY("List");
-                F32 max_image_decode_time = texture_pipeline_budget();
-                LLTimer tex_timer;
+                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);
-                sTexturePipelineSpent = tex_timer.getElapsedTimeF32();
             }
 
             {
@@ -884,10 +862,9 @@ void display(bool rebuild, F32 zoom_factor, int subfield, bool for_snapshot)
 
             {
                 LL_PROFILE_ZONE_NAMED_CATEGORY_DISPLAY("List");
-                F32 max_image_decode_time = texture_pipeline_budget();
-                LLTimer tex_timer;
+                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);
-                sTexturePipelineSpent = tex_timer.getElapsedTimeF32();
             }
 
             {