Outputs that are linked to inputs in the next stage must be output to stream 0, otherwise we should fail to link. --- src/glsl/link_varyings.cpp | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/src/glsl/link_varyings.cpp b/src/glsl/link_varyings.cpp index 9883c0b..0066b4e 100644 --- a/src/glsl/link_varyings.cpp +++ b/src/glsl/link_varyings.cpp @@ -1343,6 +1343,13 @@ assign_varying_locations(struct gl_context *ctx, * consumer stage, add the output. */ if (input_var || (prog->SeparateShader && consumer == NULL)) { + /* Only stream 0 outputs can be consumed in the next stage */ + if (input_var && output_var->data.streamId != 0) { + linker_error(prog, "output %s is assigned to stream=%d but " + "is linked to an input, which requires stream=0", + output_var->name, output_var->data.streamId); + return false; + } matches.record(output_var, input_var); } } -- 1.9.1 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev