For MAINT-2003 Fix sequencing issue causing mem multiplier to be applied after clamping below actual mem available

3 files changed, 11 insertions, 9 deletions

diff --git a/indra/newview/llfloaterhardwaresettings.cpp b/indra/newview/llfloaterhardwaresettings.cpp
index 116bd241c4..664f7d4fd6 100644
--- a/indra/newview/llfloaterhardwaresettings.cpp
+++ b/indra/newview/llfloaterhardwaresettings.cpp
@@ -89,8 +89,10 @@ void LLFloaterHardwareSettings::refresh()
 
 void LLFloaterHardwareSettings::refreshEnabledState()
 {
+    F32 mem_multiplier = gSavedSettings.getF32("RenderTextureMemoryMultiple");
+    
 	S32 min_tex_mem = LLViewerTextureList::getMinVideoRamSetting();
-	S32 max_tex_mem = LLViewerTextureList::getMaxVideoRamSetting();
+	S32 max_tex_mem = LLViewerTextureList::getMaxVideoRamSetting(false, mem_multiplier);
 	getChild<LLSliderCtrl>("GraphicsCardTextureMemory")->setMinValue(min_tex_mem);
 	getChild<LLSliderCtrl>("GraphicsCardTextureMemory")->setMaxValue(max_tex_mem);
 
diff --git a/indra/newview/llviewertexturelist.cpp b/indra/newview/llviewertexturelist.cpp
index b9f5c432d0..82d990cf97 100644
--- a/indra/newview/llviewertexturelist.cpp
+++ b/indra/newview/llviewertexturelist.cpp
@@ -1191,7 +1191,7 @@ S32 LLViewerTextureList::getMinVideoRamSetting()
 
 //static
 // Returns max setting for TextureMemory (in MB)
-S32 LLViewerTextureList::getMaxVideoRamSetting(bool get_recommended)
+S32 LLViewerTextureList::getMaxVideoRamSetting(bool get_recommended, float mem_multiplier)
 {
 	S32 max_texmem;
 	if (gGLManager.mVRAM != 0)
@@ -1235,7 +1235,10 @@ S32 LLViewerTextureList::getMaxVideoRamSetting(bool get_recommended)
 		max_texmem = llmin(max_texmem, (S32)(system_ram/2));
 	else
 		max_texmem = llmin(max_texmem, (S32)(system_ram));
-		
+    
+    // limit the texture memory to a multiple of the default if we've found some cards to behave poorly otherwise
+	max_texmem = llmin(max_texmem, (S32) (mem_multiplier * (F32) max_texmem));
+
 	max_texmem = llclamp(max_texmem, getMinVideoRamSetting(), MAX_VIDEO_RAM_IN_MEGA_BYTES); 
 	
 	return max_texmem;
@@ -1248,7 +1251,7 @@ void LLViewerTextureList::updateMaxResidentTexMem(S32 mem)
 	// Initialize the image pipeline VRAM settings
 	S32 cur_mem = gSavedSettings.getS32("TextureMemory");
 	F32 mem_multiplier = gSavedSettings.getF32("RenderTextureMemoryMultiple");
-	S32 default_mem = getMaxVideoRamSetting(true); // recommended default
+	S32 default_mem = getMaxVideoRamSetting(true, mem_multiplier); // recommended default
 	if (mem == 0)
 	{
 		mem = cur_mem > 0 ? cur_mem : default_mem;
@@ -1258,10 +1261,7 @@ void LLViewerTextureList::updateMaxResidentTexMem(S32 mem)
 		mem = default_mem;
 	}
 
-	// limit the texture memory to a multiple of the default if we've found some cards to behave poorly otherwise
-	mem = llmin(mem, (S32) (mem_multiplier * (F32) default_mem));
-
-	mem = llclamp(mem, getMinVideoRamSetting(), getMaxVideoRamSetting());
+	mem = llclamp(mem, getMinVideoRamSetting(), getMaxVideoRamSetting(false, mem_multiplier));
 	if (mem != cur_mem)
 	{
 		gSavedSettings.setS32("TextureMemory", mem);
diff --git a/indra/newview/llviewertexturelist.h b/indra/newview/llviewertexturelist.h
index 3dda973d3f..88dea4448b 100644
--- a/indra/newview/llviewertexturelist.h
+++ b/indra/newview/llviewertexturelist.h
@@ -114,7 +114,7 @@ public:
 	void setDebugFetching(LLViewerFetchedTexture* tex, S32 debug_level);
 
 	static S32 getMinVideoRamSetting();
-	static S32 getMaxVideoRamSetting(bool get_recommended = false);
+	static S32 getMaxVideoRamSetting(bool get_recommended, float mem_multiplier);
 	
 private:
 	void updateImagesDecodePriorities();