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-rw-r--r--src/mesa/main/api_validate.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/mesa/main/api_validate.c b/src/mesa/main/api_validate.c
index b10d8cd053c..4e94f47e328 100644
--- a/src/mesa/main/api_validate.c
+++ b/src/mesa/main/api_validate.c
@@ -383,6 +383,12 @@ _mesa_validate_DrawArraysInstanced(struct gl_context *ctx, GLenum mode, GLint fi
return GL_FALSE;
}
+ if (first < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glDrawArraysInstanced(start=%d)", first);
+ return GL_FALSE;
+ }
+
if (!_mesa_valid_prim_mode(ctx, mode)) {
_mesa_error(ctx, GL_INVALID_ENUM,
"glDrawArraysInstanced(mode=0x%x)", mode);