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-rw-r--r--src/mesa/shader/nvvertparse.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/shader/nvvertparse.c b/src/mesa/shader/nvvertparse.c
index ee6d9f122cb..3840dca2220 100644
--- a/src/mesa/shader/nvvertparse.c
+++ b/src/mesa/shader/nvvertparse.c
@@ -1364,7 +1364,7 @@ _mesa_parse_nv_vertex_program(GLcontext *ctx, GLenum dstTarget,
}
else {
if (!parseState.isPositionInvariant &&
- !(parseState.outputsWritten & 1)) {
+ !(parseState.outputsWritten & (1 << VERT_RESULT_HPOS))) {
/* bit 1 = HPOS register */
_mesa_error(ctx, GL_INVALID_OPERATION,
"glLoadProgramNV(HPOS not written)");