[PATCH 1/1] winewayland: Implement support for rotated displays.

[Etaash Mathamsetty]

From: Etaash Mathamsetty

---
 dlls/winewayland.drv/wayland_output.c | 18 ++++++++++++++++++
 dlls/winewayland.drv/waylanddrv.h     |  1 +
 2 files changed, 19 insertions(+)

diff --git a/dlls/winewayland.drv/wayland_output.c b/dlls/winewayland.drv/wayland_output.c
index f76881a1770..b9fd3d1e7b5 100644
--- a/dlls/winewayland.drv/wayland_output.c
+++ b/dlls/winewayland.drv/wayland_output.c
@@ -39,6 +39,7 @@ static uint32_t next_output_id = 0;
 #define WAYLAND_OUTPUT_CHANGED_NAME       0x02
 #define WAYLAND_OUTPUT_CHANGED_LOGICAL_XY 0x04
 #define WAYLAND_OUTPUT_CHANGED_LOGICAL_WH 0x08
+#define WAYLAND_OUTPUT_CHANGED_GEOMETRY   0x10

/**********************************************************************
  *          Output handling
@@ -135,10 +136,22 @@ static void wayland_output_done(struct wayland_output *output)
     /* Update current state from pending state. */
     pthread_mutex_lock(&process_wayland.output_mutex);

+    if (output->pending_flags & WAYLAND_OUTPUT_CHANGED_GEOMETRY)
+    {
+        output->current.transform = output->pending.transform;
+    }
+
     if (output->pending_flags & WAYLAND_OUTPUT_CHANGED_MODES)
     {
         RB_FOR_EACH_ENTRY(mode, &output->pending.modes, struct wayland_output_mode, entry)
         {
+            /* mode w,h need to be switched when the output is transformed by 90/270 degrees */
+            if (output->current.transform & WL_OUTPUT_TRANSFORM_90)
+            {
+                const int32_t temp = mode->width;
+                mode->width = mode->height;
+                mode->height = temp;
+            }
             wayland_output_state_add_mode(&output->current,
                                           mode->width, mode->height, mode->refresh,
                                           mode == output->pending.current_mode);
@@ -200,6 +213,11 @@ static void output_handle_geometry(void *data, struct wl_output *wl_output,
                                    const char *make, const char *model,
                                    int32_t output_transform)
 {
+    struct wayland_output *output = data;
+
+    output->pending.transform = output_transform;
+
+    output->pending_flags |= WAYLAND_OUTPUT_CHANGED_GEOMETRY;
 }

static void output_handle_mode(void *data, struct wl_output *wl_output,
diff --git a/dlls/winewayland.drv/waylanddrv.h b/dlls/winewayland.drv/waylanddrv.h
index cb331df789d..face73326b0 100644
--- a/dlls/winewayland.drv/waylanddrv.h
+++ b/dlls/winewayland.drv/waylanddrv.h
@@ -205,6 +205,7 @@ struct wayland_output_state
     char *name;
     int logical_x, logical_y;
     int logical_w, logical_h;
+    int32_t transform;
 };

struct wayland_output