From 51d1f519afdd42d23de88f28ab88a3034042e9c6 Mon Sep 17 00:00:00 2001
From: Dima <dimaxdqwerty@gmail.com>
Date: Sun, 27 Nov 2022 14:03:20 +0300
Subject: [PATCH] Stub ListDisplays

---
 .../services/visrv/IApplicationDisplayService.cpp | 15 +++++++++++++++
 .../services/visrv/IApplicationDisplayService.h   |  6 ++++++
 2 files changed, 21 insertions(+)

diff --git a/app/src/main/cpp/skyline/services/visrv/IApplicationDisplayService.cpp b/app/src/main/cpp/skyline/services/visrv/IApplicationDisplayService.cpp
index 665b1bcf..8e1c68b8 100644
--- a/app/src/main/cpp/skyline/services/visrv/IApplicationDisplayService.cpp
+++ b/app/src/main/cpp/skyline/services/visrv/IApplicationDisplayService.cpp
@@ -40,6 +40,21 @@ namespace skyline::service::visrv {
         return {};
     }
 
+    Result IApplicationDisplayService::ListDisplays(type::KSession &session, ipc::IpcRequest &request, ipc::IpcResponse &response) {
+        struct DisplayInfo {
+            std::array<u8, 0x40> displayName{"Default"};
+            u8 hasLimitedLayers{1};
+            u8 pad[7];
+            u64 maxLayers{1};
+            u64 width{1920};
+            u64 height{1080};
+        } displayInfo;
+
+        request.outputBuf.at(0).as<DisplayInfo>() = displayInfo;
+        response.Push<u64>(1);
+        return {};
+    }
+
     Result IApplicationDisplayService::OpenDisplay(type::KSession &session, ipc::IpcRequest &request, ipc::IpcResponse &response) {
         auto displayName(request.PopString());
         Logger::Debug("Opening display: {}", displayName);
diff --git a/app/src/main/cpp/skyline/services/visrv/IApplicationDisplayService.h b/app/src/main/cpp/skyline/services/visrv/IApplicationDisplayService.h
index 090a7e99..cba171b7 100644
--- a/app/src/main/cpp/skyline/services/visrv/IApplicationDisplayService.h
+++ b/app/src/main/cpp/skyline/services/visrv/IApplicationDisplayService.h
@@ -53,6 +53,11 @@ namespace skyline::service::visrv {
          */
         Result GetManagerDisplayService(type::KSession &session, ipc::IpcRequest &request, ipc::IpcResponse &response);
 
+        /**
+         * @url https://switchbrew.org/wiki/Display_services#ListDisplays
+         */
+        Result ListDisplays(type::KSession &session, ipc::IpcRequest &request, ipc::IpcResponse &response);
+
         /**
          * @brief Opens up a display using its name as the input
          * @url https://switchbrew.org/wiki/Display_services#OpenDisplay
@@ -99,6 +104,7 @@ namespace skyline::service::visrv {
           SFUNC(0x65, IApplicationDisplayService, GetSystemDisplayService),
           SFUNC(0x66, IApplicationDisplayService, GetManagerDisplayService),
           SFUNC(0x67, IApplicationDisplayService, GetIndirectDisplayTransactionService),
+          SFUNC(0x3E8, IApplicationDisplayService, ListDisplays),
           SFUNC(0x3F2, IApplicationDisplayService, OpenDisplay),
           SFUNC(0x3FC, IApplicationDisplayService, CloseDisplay),
           SFUNC(0x7E4, IApplicationDisplayService, OpenLayer),