From e3e548a64861749474d87904875655904023b335 Mon Sep 17 00:00:00 2001
From: Kalyan Sriram <coder.kalyan@gmail.com>
Date: Fri, 5 Jun 2020 05:13:18 -0700
Subject: [PATCH] Save transform during transaction

Closes: https://github.com/swaywm/sway/issues/5412
---
 include/sway/tree/view.h | 1 +
 sway/desktop/render.c    | 3 ++-
 sway/tree/view.c         | 1 +
 3 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/sway/tree/view.h b/include/sway/tree/view.h
index 53c5d34ee..8898cde51 100644
--- a/include/sway/tree/view.h
+++ b/include/sway/tree/view.h
@@ -59,6 +59,7 @@ struct sway_saved_buffer {
 	struct wlr_client_buffer *buffer;
 	int x, y;
 	int width, height;
+	enum wl_output_transform transform;
 	struct wl_list link; // sway_view::saved_buffers
 };
 
diff --git a/sway/desktop/render.c b/sway/desktop/render.c
index 491a9bc08..2996e135c 100644
--- a/sway/desktop/render.c
+++ b/sway/desktop/render.c
@@ -312,7 +312,8 @@ static void render_saved_view(struct sway_view *view,
 		scale_box(&box, wlr_output->scale);
 
 		float matrix[9];
-		wlr_matrix_project_box(matrix, &box, WL_OUTPUT_TRANSFORM_NORMAL, 0,
+		enum wl_output_transform transform = wlr_output_transform_invert(saved_buf->transform);
+		wlr_matrix_project_box(matrix, &box, transform, 0,
 			wlr_output->transform_matrix);
 
 		render_texture(wlr_output, damage, saved_buf->buffer->texture,
diff --git a/sway/tree/view.c b/sway/tree/view.c
index a90346376..314fd3819 100644
--- a/sway/tree/view.c
+++ b/sway/tree/view.c
@@ -1199,6 +1199,7 @@ static void view_save_buffer_iterator(struct wlr_surface *surface,
 		saved_buffer->height = surface->current.height;
 		saved_buffer->x = sx;
 		saved_buffer->y = sy;
+		saved_buffer->transform = surface->current.transform;
 		wl_list_insert(&view->saved_buffers, &saved_buffer->link);
 	}
 }