Mesa (main): mesa/st: only flag pointsize constant uploads if they're needed

[GitLab Mirror]

Module: Mesa
Branch: main
Commit: 4f027fbff234140b5c89831312c4715d78d3ed41
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=4f027fbff234140b5c89831312c4715d78d3ed41

Author: Mike Blumenkrantz <michael.blumenkrantz at gmail.com>
Date:   Thu Mar 31 12:31:29 2022 -0400

mesa/st: only flag pointsize constant uploads if they're needed

now that shaders are guaranteed to have a pointsize export, the only time
the variant using the uploaded constant is needed is when pointsize != 1.0

Reviewed-by: Marek Olšák <marek.olsak at amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15699>

---

 src/mesa/state_tracker/st_atom.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/mesa/state_tracker/st_atom.c b/src/mesa/state_tracker/st_atom.c
index 9326eb9a282..cc23b054390 100644
--- a/src/mesa/state_tracker/st_atom.c
+++ b/src/mesa/state_tracker/st_atom.c
@@ -148,7 +148,8 @@ static void check_program_state( struct st_context *st )
          dirty |= ST_NEW_SCISSOR;
    }
 
-   if (st->lower_point_size && st->ctx->LastVertexStageDirty && !st->ctx->VertexProgram.PointSizeEnabled) {
+   if (st->lower_point_size && st->ctx->LastVertexStageDirty &&
+       !st->ctx->VertexProgram.PointSizeEnabled && !st->ctx->PointSizeIsOne) {
       if (new_gp) {
          st->dirty |= ST_NEW_GS_CONSTANTS;
       } else if (new_tep) {