diff --git a/rsScriptC_LibGL.cpp b/rsScriptC_LibGL.cpp
index 995cef2..6a897a3 100644
--- a/rsScriptC_LibGL.cpp
+++ b/rsScriptC_LibGL.cpp
@@ -285,9 +285,10 @@
 }
 
 void rsrDrawTextAlloc(Context *rsc, Script *sc, Allocation *a, int x, int y) {
-    const char *text = (const char *)a->getPtr();
+    const char *text = (const char *)rsc->mHal.funcs.allocation.lock1D(rsc, a);
     size_t allocSize = a->getType()->getSizeBytes();
     rsc->mStateFont.renderText(text, allocSize, x, y);
+    rsc->mHal.funcs.allocation.unlock1D(rsc, a);
 }
 
 void rsrDrawText(Context *rsc, Script *sc, const char *text, int x, int y) {
@@ -314,11 +315,12 @@
 void rsrMeasureTextAlloc(Context *rsc, Script *sc, Allocation *a,
                          int32_t *left, int32_t *right, int32_t *top, int32_t *bottom) {
     CHECK_OBJ(a);
-    const char *text = (const char *)a->getPtr();
+    const char *text = (const char *)rsc->mHal.funcs.allocation.lock1D(rsc, a);
     size_t textLen = a->getType()->getSizeBytes();
     Font::Rect metrics;
     rsc->mStateFont.measureText(text, textLen, &metrics);
     SetMetrics(&metrics, left, right, top, bottom);
+    rsc->mHal.funcs.allocation.unlock1D(rsc, a);
 }
 
 void rsrMeasureText(Context *rsc, Script *sc, const char *text,