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-rw-r--r--src/mesa/main/api_arrayelt.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mesa/main/api_arrayelt.c b/src/mesa/main/api_arrayelt.c
index cb827c2ec9c..6a531aa2aad 100644
--- a/src/mesa/main/api_arrayelt.c
+++ b/src/mesa/main/api_arrayelt.c
@@ -989,7 +989,7 @@ void GLAPIENTRY _ae_loopback_array_elt( GLint elt )
/* generic attributes */
for (at = actx->attribs; at->func; at++) {
const GLubyte *src = at->array->BufferObj->Data
- + (unsigned long) at->array->Ptr
+ + (uintptr_t) at->array->Ptr
+ elt * at->array->StrideB;
at->func( at->index, src );
}
@@ -997,7 +997,7 @@ void GLAPIENTRY _ae_loopback_array_elt( GLint elt )
/* conventional arrays */
for (aa = actx->arrays; aa->func ; aa++) {
const GLubyte *src = aa->array->BufferObj->Data
- + (unsigned long) aa->array->Ptr
+ + (uintptr_t) aa->array->Ptr
+ elt * aa->array->StrideB;
aa->func( src );
}