1 files changed, 14 insertions, 6 deletions
diff --git a/indra/llimage/llimagebmp.cpp b/indra/llimage/llimagebmp.cpp
index 08fcdf39da..2a328675c2 100644
--- a/indra/llimage/llimagebmp.cpp
+++ b/indra/llimage/llimagebmp.cpp
@@ -96,6 +96,8 @@ bool LLImageBMP::updateData()
 {
     resetLastError();
 
+    LLImageDataLock lock(this);
+
     // Check to make sure that this instance has been initialized with data
     U8* mdata = getData();
     if (!mdata || (0 == getDataSize()))
@@ -337,8 +339,11 @@ bool LLImageBMP::decode(LLImageRaw* raw_image, F32 decode_time)
 
     resetLastError();
 
+    LLImageDataLock lockIn(this);
+    LLImageDataLock lockOut(raw_image);
+
     // Check to make sure that this instance has been initialized with data
-    U8* mdata = getData();
+    const U8* mdata = getData();
     if (!mdata || (0 == getDataSize()))
     {
         setLastError("llimagebmp trying to decode an image with no data!");
@@ -351,7 +356,7 @@ bool LLImageBMP::decode(LLImageRaw* raw_image, F32 decode_time)
         return false;
     }
 
-    U8* src = mdata + mBitmapOffset;
+    const U8* src = mdata + mBitmapOffset;
     U8* dst = raw_image->getData();
 
     bool success = false;
@@ -398,7 +403,7 @@ U32 LLImageBMP::countTrailingZeros( U32 m )
 }
 
 
-bool LLImageBMP::decodeColorMask16( U8* dst, U8* src )
+bool LLImageBMP::decodeColorMask16( U8* dst, const U8* src )
 {
     llassert( 16 == mBitsPerPixel );
 
@@ -434,7 +439,7 @@ bool LLImageBMP::decodeColorMask16( U8* dst, U8* src )
     return true;
 }
 
-bool LLImageBMP::decodeColorMask32( U8* dst, U8* src )
+bool LLImageBMP::decodeColorMask32( U8* dst, const U8* src )
 {
     // Note: alpha is not supported
 
@@ -478,7 +483,7 @@ bool LLImageBMP::decodeColorMask32( U8* dst, U8* src )
 }
 
 
-bool LLImageBMP::decodeColorTable8( U8* dst, U8* src )
+bool LLImageBMP::decodeColorTable8( U8* dst, const U8* src )
 {
     llassert( (8 == mBitsPerPixel) && (mColorPaletteColors >= 256) );
 
@@ -508,7 +513,7 @@ bool LLImageBMP::decodeColorTable8( U8* dst, U8* src )
 }
 
 
-bool LLImageBMP::decodeTruecolor24( U8* dst, U8* src )
+bool LLImageBMP::decodeTruecolor24( U8* dst, const U8* src )
 {
     llassert( 24 == mBitsPerPixel );
     llassert( 3 == getComponents() );
@@ -542,6 +547,9 @@ bool LLImageBMP::encode(const LLImageRaw* raw_image, F32 encode_time)
 
     resetLastError();
 
+    LLImageDataSharedLock lockIn(raw_image);
+    LLImageDataLock lockOut(this);
+
     S32 src_components = raw_image->getComponents();
     S32 dst_components =  ( src_components < 3 ) ? 1 : 3;