diff options
Diffstat (limited to 'indra/newview/llviewerdisplay.cpp')
| -rw-r--r-- | indra/newview/llviewerdisplay.cpp | 36 |
1 files changed, 32 insertions, 4 deletions
diff --git a/indra/newview/llviewerdisplay.cpp b/indra/newview/llviewerdisplay.cpp index 1276ec5263..affd57a8d1 100644 --- a/indra/newview/llviewerdisplay.cpp +++ b/indra/newview/llviewerdisplay.cpp @@ -140,6 +140,27 @@ 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 @@ -217,6 +238,11 @@ void display_update_camera() { final_far *= 0.5f; } + // When system memory is critically low or recovering, shrink draw distance. + else if (const F32 mem_factor = LLMemory::getSystemMemoryBudgetFactor(); mem_factor > 1.f) + { + final_far = llmax(32.f, final_far / mem_factor); + } LLViewerCamera::getInstance()->setFar(final_far); LLVOAvatar::sRenderDistance = llclamp(final_far, 16.f, 256.f); gViewerWindow->setup3DRender(); @@ -519,9 +545,10 @@ void display(bool rebuild, F32 zoom_factor, int subfield, bool for_snapshot) { 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) + F32 max_image_decode_time = texture_pipeline_budget(); + LLTimer tex_timer; gTextureList.updateImages(max_image_decode_time); + sTexturePipelineSpent = tex_timer.getElapsedTimeF32(); } { @@ -897,9 +924,10 @@ void display(bool rebuild, F32 zoom_factor, int subfield, bool for_snapshot) { 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) + F32 max_image_decode_time = texture_pipeline_budget(); + LLTimer tex_timer; gTextureList.updateImages(max_image_decode_time); + sTexturePipelineSpent = tex_timer.getElapsedTimeF32(); } { |