From 9f708ee7896389e38de3a8fd279d0831c86e9f4c Mon Sep 17 00:00:00 2001
From: Michael Sloan <michael@zed.dev>
Date: Tue, 8 Apr 2025 18:00:30 -0600
Subject: [PATCH] Fix refactoring bug in dashes around rounded corners (#28378)

Accidentally introduced in #28341

Release Notes:

- N/A
---
 crates/gpui/src/platform/blade/shaders.wgsl | 10 +++++-----
 crates/gpui/src/platform/mac/shaders.metal  | 10 +++++-----
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/crates/gpui/src/platform/blade/shaders.wgsl b/crates/gpui/src/platform/blade/shaders.wgsl
index c28483aeca..0b34a0eea3 100644
--- a/crates/gpui/src/platform/blade/shaders.wgsl
+++ b/crates/gpui/src/platform/blade/shaders.wgsl
@@ -698,7 +698,7 @@ fn fs_quad(input: QuadVarying) -> @location(0) vec4<f32> {
                 if (is_near_rounded_corner) {
                     let radians = atan2(corner_center_to_point.y,
                                         corner_center_to_point.x);
-                    let corner_t = radians * corner_radius * dash_velocity;
+                    let corner_t = radians * corner_radius;
 
                     if (center_to_point.x >= 0.0) {
                         if (center_to_point.y < 0.0) {
@@ -706,12 +706,12 @@ fn fs_quad(input: QuadVarying) -> @location(0) vec4<f32> {
                             // Subtracted because radians is pi/2 to 0 when
                             // going clockwise around the top right corner,
                             // since the y axis has been flipped
-                            t = upto_r - corner_t;
+                            t = upto_r - corner_t * dash_velocity;
                         } else {
                             dash_velocity = corner_dash_velocity_br;
                             // Added because radians is 0 to pi/2 when going
                             // clockwise around the bottom-right corner
-                            t = upto_br + corner_t;
+                            t = upto_br + corner_t * dash_velocity;
                         }
                     } else {
                         if (center_to_point.y >= 0.0) {
@@ -719,13 +719,13 @@ fn fs_quad(input: QuadVarying) -> @location(0) vec4<f32> {
                             // Subtracted because radians is pi/2 to 0 when
                             // going clockwise around the bottom-left corner,
                             // since the x axis has been flipped
-                            t = upto_l - corner_t;
+                            t = upto_l - corner_t * dash_velocity;
                         } else {
                             dash_velocity = corner_dash_velocity_tl;
                             // Added because radians is 0 to pi/2 when going
                             // clockwise around the top-left corner, since both
                             // axis were flipped
-                            t = upto_tl + corner_t;
+                            t = upto_tl + corner_t * dash_velocity;
                         }
                     }
                 } else {
diff --git a/crates/gpui/src/platform/mac/shaders.metal b/crates/gpui/src/platform/mac/shaders.metal
index a7bed19dd8..64ebb1e22b 100644
--- a/crates/gpui/src/platform/mac/shaders.metal
+++ b/crates/gpui/src/platform/mac/shaders.metal
@@ -298,7 +298,7 @@ fragment float4 quad_fragment(QuadFragmentInput input [[stage_in]],
 
         if (is_near_rounded_corner) {
           float radians = atan2(corner_center_to_point.y, corner_center_to_point.x);
-          float corner_t = radians * corner_radius * dash_velocity;
+          float corner_t = radians * corner_radius;
 
           if (center_to_point.x >= 0.0) {
             if (center_to_point.y < 0.0) {
@@ -306,12 +306,12 @@ fragment float4 quad_fragment(QuadFragmentInput input [[stage_in]],
               // Subtracted because radians is pi/2 to 0 when
               // going clockwise around the top right corner,
               // since the y axis has been flipped
-              t = upto_r - corner_t;
+              t = upto_r - corner_t * dash_velocity;
             } else {
               dash_velocity = corner_dash_velocity_br;
               // Added because radians is 0 to pi/2 when going
               // clockwise around the bottom-right corner
-              t = upto_br + corner_t;
+              t = upto_br + corner_t * dash_velocity;
             }
           } else {
             if (center_to_point.y >= 0.0) {
@@ -319,13 +319,13 @@ fragment float4 quad_fragment(QuadFragmentInput input [[stage_in]],
               // Subtracted because radians is pi/1 to 0 when
               // going clockwise around the bottom-left corner,
               // since the x axis has been flipped
-              t = upto_l - corner_t;
+              t = upto_l - corner_t * dash_velocity;
             } else {
               dash_velocity = corner_dash_velocity_tl;
               // Added because radians is 0 to pi/2 when going
               // clockwise around the top-left corner, since both
               // axis were flipped
-              t = upto_tl + corner_t;
+              t = upto_tl + corner_t * dash_velocity;
             }
           }
         } else {