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-rw-r--r--indra/llrender/llimagegl.cpp6
1 files changed, 6 insertions, 0 deletions
diff --git a/indra/llrender/llimagegl.cpp b/indra/llrender/llimagegl.cpp
index fafc92b5d0..81743713a1 100644
--- a/indra/llrender/llimagegl.cpp
+++ b/indra/llrender/llimagegl.cpp
@@ -2583,6 +2583,12 @@ bool LLImageGL::scaleDown(S32 desired_discard)
{
glDrawArrays(GL_TRIANGLES, 0, 3);
+#if LL_DARWIN
+ // On mac OS, flush before freeing, otherwise the texture may be
+ // freed before Metal's 'lazy' evaluation/restoration behavior triggers.
+ glFlush();
+#endif
+
free_tex_image(mTexName);
glTexImage2D(mTarget, 0, mFormatInternal, desired_width, desired_height, 0, mFormatPrimary, mFormatType, nullptr);
glCopyTexSubImage2D(mTarget, 0, 0, 0, 0, 0, desired_width, desired_height);