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-rw-r--r--src/mesa/shader/slang/slang_link.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/mesa/shader/slang/slang_link.c b/src/mesa/shader/slang/slang_link.c
index 53de4232be..8f07406ee4 100644
--- a/src/mesa/shader/slang/slang_link.c
+++ b/src/mesa/shader/slang/slang_link.c
@@ -445,6 +445,18 @@ _slang_link(GLcontext *ctx,
_mesa_problem(ctx, "unexpected shader target in slang_link()");
}
+#if FEATURE_es2_glsl
+ /* must have both a vertex and fragment program for ES2 */
+ if (!vertProg) {
+ link_error(shProg, "missing vertex shader\n");
+ return;
+ }
+ if (!fragProg) {
+ link_error(shProg, "missing fragment shader\n");
+ return;
+ }
+#endif
+
/*
* Make copies of the vertex/fragment programs now since we'll be
* changing src/dst registers after merging the uniforms and varying vars.