From 29a1b1539fb2e0e82d02e521954b163c6d9d55d1 Mon Sep 17 00:00:00 2001
From: ns6089 <61738816+ns6089@users.noreply.github.com>
Date: Fri, 17 Nov 2023 16:43:12 +0300
Subject: [PATCH] Fix incorrect portrait mode rotation center on Windows
 (#1851)

---
 .../windows/assets/shaders/directx/include/base_vs.hlsl       | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src_assets/windows/assets/shaders/directx/include/base_vs.hlsl b/src_assets/windows/assets/shaders/directx/include/base_vs.hlsl
index 5fc9226b..c04fad39 100644
--- a/src_assets/windows/assets/shaders/directx/include/base_vs.hlsl
+++ b/src_assets/windows/assets/shaders/directx/include/base_vs.hlsl
@@ -2,7 +2,7 @@
 
 #if defined(LEFT_SUBSAMPLING)
 vertex_t generate_fullscreen_triangle_vertex(uint vertex_id, float subsample_offset, int rotate_texture_steps)
-#elif defined (TOPLEFT_SUBSAMPLING)
+#elif defined(TOPLEFT_SUBSAMPLING)
 vertex_t generate_fullscreen_triangle_vertex(uint vertex_id, float2 subsample_offset, int rotate_texture_steps)
 #else
 vertex_t generate_fullscreen_triangle_vertex(uint vertex_id, int rotate_texture_steps)
@@ -29,7 +29,7 @@ vertex_t generate_fullscreen_triangle_vertex(uint vertex_id, int rotate_texture_
         float2x2 rotation_matrix = { cos(rotation_radians), -sin(rotation_radians),
                                      sin(rotation_radians), cos(rotation_radians) };
         float2 rotation_center = { 0.5, 0.5 };
-        tex_coord = round(tex_coord + mul(rotation_matrix, tex_coord - rotation_center));
+        tex_coord = round(rotation_center + mul(rotation_matrix, tex_coord - rotation_center));
     }
 
 #if defined(LEFT_SUBSAMPLING)