2 files changed, 51 insertions, 2 deletions

diff --git a/indra/newview/llfloatersnapshot.cpp b/indra/newview/llfloatersnapshot.cpp
index 8677028942..04329ff66e 100755
--- a/indra/newview/llfloatersnapshot.cpp
+++ b/indra/newview/llfloatersnapshot.cpp
@@ -383,12 +383,20 @@ void LLFloaterSnapshot::Impl::updateControls(LLFloaterSnapshot* floater)
 			S32 w = gViewerWindow->getWindowWidthRaw();
 			LL_DEBUGS() << "Initializing width spinner (" << width_ctrl->getName() << "): " << w << LL_ENDL;
 			width_ctrl->setValue(w);
+			if(getActiveSnapshotType(floater) == LLSnapshotLivePreview::SNAPSHOT_TEXTURE)
+			{
+				width_ctrl->setIncrement(w >> 1);
+			}
 		}
 		if (height_ctrl->getValue().asInteger() == 0)
 		{
 			S32 h = gViewerWindow->getWindowHeightRaw();
 			LL_DEBUGS() << "Initializing height spinner (" << height_ctrl->getName() << "): " << h << LL_ENDL;
 			height_ctrl->setValue(h);
+			if(getActiveSnapshotType(floater) == LLSnapshotLivePreview::SNAPSHOT_TEXTURE)
+			{
+				height_ctrl->setIncrement(h >> 1);
+			}
 		}
 
 		// Clamp snapshot resolution to window size when showing UI or HUD in snapshot.
@@ -823,6 +831,11 @@ void LLFloaterSnapshot::Impl::updateResolution(LLUICtrl* ctrl, void* data, BOOL
 		{
 			getWidthSpinner(view)->setValue(width);
 			getHeightSpinner(view)->setValue(height);
+			if (getActiveSnapshotType(view) == LLSnapshotLivePreview::SNAPSHOT_TEXTURE)
+			{
+				getWidthSpinner(view)->setIncrement(width >> 1);
+				getHeightSpinner(view)->setIncrement(height >> 1);
+			}
 		}
 
 		if(original_width != width || original_height != height)
@@ -942,6 +955,11 @@ void LLFloaterSnapshot::Impl::setImageSizeSpinnersValues(LLFloaterSnapshot *view
 {
 	getWidthSpinner(view)->forceSetValue(width);
 	getHeightSpinner(view)->forceSetValue(height);
+	if (getActiveSnapshotType(view) == LLSnapshotLivePreview::SNAPSHOT_TEXTURE)
+	{
+		getWidthSpinner(view)->setIncrement(width >> 1);
+		getHeightSpinner(view)->setIncrement(height >> 1);
+	}
 }
 
 // static
diff --git a/indra/newview/llpanelsnapshot.cpp b/indra/newview/llpanelsnapshot.cpp
index 56569e3207..106fb4997e 100755
--- a/indra/newview/llpanelsnapshot.cpp
+++ b/indra/newview/llpanelsnapshot.cpp
@@ -37,6 +37,19 @@
 #include "llsidetraypanelcontainer.h"
 #include "llviewercontrol.h" // gSavedSettings
 
+const S32 MAX_TEXTURE_SIZE = 512 ; //max upload texture size 512 * 512
+
+S32 power_of_two(S32 sz, S32 upper)
+{
+	S32 res = upper;
+	while( upper >= sz)
+	{
+		res = upper;
+		upper >>= 1;
+	}
+	return res;
+}
+
 // virtual
 BOOL LLPanelSnapshot::postBuild()
 {
@@ -164,8 +177,26 @@ void LLPanelSnapshot::cancel()
 void LLPanelSnapshot::onCustomResolutionCommit()
 {
 	LLSD info;
-	info["w"] = getChild<LLUICtrl>(getWidthSpinnerName())->getValue().asInteger();
-	info["h"] = getChild<LLUICtrl>(getHeightSpinnerName())->getValue().asInteger();
+	LLSpinCtrl *widthSpinner = getChild<LLSpinCtrl>(getWidthSpinnerName());
+	LLSpinCtrl *heightSpinner = getChild<LLSpinCtrl>(getHeightSpinnerName());
+	if (getName() == "panel_snapshot_inventory")
+	{
+		S32 width = widthSpinner->getValue().asInteger();
+		width = power_of_two(width, MAX_TEXTURE_SIZE);
+		info["w"] = width;
+		widthSpinner->setIncrement(width >> 1);
+		widthSpinner->forceSetValue(width);
+		S32 height =  heightSpinner->getValue().asInteger();
+		height = power_of_two(height, MAX_TEXTURE_SIZE);
+		heightSpinner->setIncrement(height >> 1);
+		heightSpinner->forceSetValue(height);
+		info["h"] = height;
+	}
+	else
+	{
+		info["w"] = widthSpinner->getValue().asInteger();
+		info["h"] = heightSpinner->getValue().asInteger();
+	}
 	LLFloaterSnapshot::getInstance()->notify(LLSD().with("custom-res-change", info));
 }