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glsl: only set has_transform_feedback_varyings for the last pre-FS shader

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I don't think this should be set for all shaders. Also simplify it.

Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Timothy Arceri <tarceri@itqueeze.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36023>
This commit is contained in:
Marek Olšák 2025-07-05 04:07:25 -04:00 • committed by Marge Bot
parent d08a21b7a3
commit 6d6fdad685
1 changed files with 3 additions and 13 deletions
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16
src/compiler/glsl/gl_nir_link_varyings.c
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@ -4557,19 +4557,9 @@ link_varyings(struct gl_shader_program *prog, unsigned first,
assert(prog->data->LinkStatus != LINKING_FAILURE);
for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
if (!prog->_LinkedShaders[i])
continue;
/* Check for transform feedback varyings specified via the API */
prog->_LinkedShaders[i]->Program->nir->info.has_transform_feedback_varyings =
prog->TransformFeedback.NumVarying > 0;
/* Check for transform feedback varyings specified in the Shader */
if (prog->last_vert_prog) {
prog->_LinkedShaders[i]->Program->nir->info.has_transform_feedback_varyings |=
prog->last_vert_prog->sh.LinkedTransformFeedback->NumVarying > 0;
}
if (prog->last_vert_prog) {
prog->last_vert_prog->nir->info.has_transform_feedback_varyings |=
num_xfb_decls > 0;
}
/* Assign NIR XFB info to the last stage before the fragment shader */