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-rw-r--r--mesalib/src/mesa/main/teximage.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mesalib/src/mesa/main/teximage.c b/mesalib/src/mesa/main/teximage.c
index 83e79a5a3..08af66893 100644
--- a/mesalib/src/mesa/main/teximage.c
+++ b/mesalib/src/mesa/main/teximage.c
@@ -2746,7 +2746,7 @@ _mesa_choose_texture_format(struct gl_context *ctx,
/* If the application requested compression to an S3TC format but we don't
* have the DTXn library, force a generic compressed format instead.
*/
- if (internalFormat != format) {
+ if (internalFormat != format && format != GL_NONE) {
const GLenum before = internalFormat;
switch (internalFormat) {