diff options
Diffstat (limited to 'indra/newview/llviewertexture.cpp')
| -rw-r--r-- | indra/newview/llviewertexture.cpp | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/indra/newview/llviewertexture.cpp b/indra/newview/llviewertexture.cpp index 280337be0f..786e2b73b1 100644 --- a/indra/newview/llviewertexture.cpp +++ b/indra/newview/llviewertexture.cpp @@ -417,6 +417,48 @@ const S32 min_non_tex_system_mem = (128<<20); // 128 MB F32 texmem_lower_bound_scale = 0.85f; F32 texmem_middle_bound_scale = 0.925f; +//static +bool LLViewerTexture::isMemoryForTextureLow() +{ + const static S32 MIN_FREE_TEXTURE_MEMORY = 5 ; //MB + const static S32 MIN_FREE_MAIN_MEMORy = 100 ; //MB + + bool low_mem = false ; + if (gGLManager.mHasATIMemInfo) + { + S32 meminfo[4]; + glGetIntegerv(GL_TEXTURE_FREE_MEMORY_ATI, meminfo); + + if(meminfo[0] / 1024 < MIN_FREE_TEXTURE_MEMORY) + { + low_mem = true ; + } + } +#if 0 //ignore nVidia cards + else if (gGLManager.mHasNVXMemInfo) + { + S32 free_memory; + glGetIntegerv(GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX, &free_memory); + + if(free_memory / 1024 < MIN_FREE_TEXTURE_MEMORY) + { + low_mem = true ; + } + } +#endif + + if(!low_mem) //check main memory, only works for windows. + { + LLMemory::updateMemoryInfo() ; + if(LLMemory::getAvailableMemKB() / 1024 < MIN_FREE_MAIN_MEMORy) + { + low_mem = true ; + } + } + + return low_mem ; +} + //static void LLViewerTexture::updateClass(const F32 velocity, const F32 angular_velocity) { @@ -449,6 +491,11 @@ void LLViewerTexture::updateClass(const F32 velocity, const F32 angular_velocity sEvaluationTimer.reset(); } } + else if(sEvaluationTimer.getElapsedTimeF32() > discard_delta_time && isMemoryForTextureLow()) + { + sDesiredDiscardBias += discard_bias_delta; + sEvaluationTimer.reset(); + } else if (sDesiredDiscardBias > 0.0f && BYTES_TO_MEGA_BYTES(sBoundTextureMemoryInBytes) < sMaxBoundTextureMemInMegaBytes * texmem_lower_bound_scale && BYTES_TO_MEGA_BYTES(sTotalTextureMemoryInBytes) < sMaxTotalTextureMemInMegaBytes * texmem_lower_bound_scale) |