From d8b66fcbf9aba2ad2f69de8e45af4c3c8f2a8323 Mon Sep 17 00:00:00 2001
From: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Date: Thu, 14 Apr 2022 16:18:10 -0400
Subject: [PATCH] zink: unconditionally set line width on rasterizer state
 change

the pipe cap is used for gating wideline support, so this will always
be 1.0 when not supported

furthermore, the previous code wasn't accurately checking line width
for tess shaders, breaking tests

cc: mesa-stable

fixes (nv):
KHR-GL46.tessellation_shader.tessellation_control_to_tessellation_evaluation.gl_PatchVerticesIn

Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15960>
---
 src/gallium/drivers/zink/zink_draw.cpp | 26 +-------------------------
 1 file changed, 1 insertion(+), 25 deletions(-)

diff --git a/src/gallium/drivers/zink/zink_draw.cpp b/src/gallium/drivers/zink/zink_draw.cpp
index 8f91fa459ac..da2b53742e6 100644
--- a/src/gallium/drivers/zink/zink_draw.cpp
+++ b/src/gallium/drivers/zink/zink_draw.cpp
@@ -239,25 +239,6 @@ update_gfx_program(struct zink_context *ctx)
    ctx->dirty_shader_stages &= ~bits;
 }
 
-static bool
-line_width_needed(enum pipe_prim_type reduced_prim,
-                  unsigned polygon_mode)
-{
-   switch (reduced_prim) {
-   case PIPE_PRIM_POINTS:
-      return false;
-
-   case PIPE_PRIM_LINES:
-      return true;
-
-   case PIPE_PRIM_TRIANGLES:
-      return polygon_mode == VK_POLYGON_MODE_LINE;
-
-   default:
-      unreachable("unexpected reduced prim");
-   }
-}
-
 ALWAYS_INLINE static void
 update_drawid(struct zink_context *ctx, unsigned draw_id)
 {
@@ -745,12 +726,7 @@ zink_draw(struct pipe_context *pctx,
          unreachable("unexpected reduced prim");
       }
 
-      if (line_width_needed(reduced_prim, rast_state->hw_state.polygon_mode)) {
-         if (screen->info.feats.features.wideLines || rast_state->line_width == 1.0f)
-            VKCTX(CmdSetLineWidth)(batch->state->cmdbuf, rast_state->line_width);
-         else
-            debug_printf("BUG: wide lines not supported, needs fallback!");
-      }
+      VKCTX(CmdSetLineWidth)(batch->state->cmdbuf, rast_state->line_width);
       if (depth_bias)
          VKCTX(CmdSetDepthBias)(batch->state->cmdbuf, rast_state->offset_units, rast_state->offset_clamp, rast_state->offset_scale);
       else