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-rw-r--r--src/mesa/main/readpix.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mesa/main/readpix.c b/src/mesa/main/readpix.c
index 93f2bd31cc..bb3fb9eb66 100644
--- a/src/mesa/main/readpix.c
+++ b/src/mesa/main/readpix.c
@@ -66,6 +66,7 @@ _mesa_error_check_format_type(GLcontext *ctx, GLenum format, GLenum type,
/* additional checks */
switch (format) {
+ case GL_RG:
case GL_RED:
case GL_GREEN:
case GL_BLUE: