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glsl2: When linking makes a variable not a varying output, make it ir_var_auto.

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This almost fixes glsl-unused-varying, except that the used varying
gets assigned to the first varying slot (position).
This commit is contained in:
Eric Anholt
2010-07-13 11:07:16 -07:00
parent 4d5da50b94
commit c10a68522c
1 changed files with 4 additions and 1 deletions
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5
src/glsl/linker.cpp
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@@ -1052,7 +1052,10 @@ assign_varying_locations(gl_shader *producer, gl_shader *consumer)
/* An 'out' variable is only really a shader output if its value is read /* An 'out' variable is only really a shader output if its value is read
* by the following stage. * by the following stage.
*/ */
var->shader_out = (var->location != -1); if (var->location == -1) {
var->shader_out = false;
var->mode = ir_var_auto;
}
} }
foreach_list(node, consumer->ir) { foreach_list(node, consumer->ir) {