From 23ed31753607d9cc82d5a487ecdd938bb3fd0513 Mon Sep 17 00:00:00 2001
From: FlightlessMango <flightlessmangoyt@gmail.com>
Date: Thu, 18 Nov 2021 08:25:30 +0100
Subject: [PATCH] mangoapp: shm struct + gamescope engine

---
 src/app/main.cpp | 20 ++++++++++++++------
 src/overlay.cpp  |  2 +-
 src/overlay.h    |  2 ++
 3 files changed, 17 insertions(+), 7 deletions(-)

diff --git a/src/app/main.cpp b/src/app/main.cpp
index 90e795d0..482d2d8d 100644
--- a/src/app/main.cpp
+++ b/src/app/main.cpp
@@ -66,11 +66,18 @@ int fd;
 char str1[80];
 char *shm_str;
 
+struct mangoapp {
+    int pid;
+    int read;
+};
+
+mangoapp *mangoapp_ptr;
+
 void read_thread(){
     while (1){
-        if (strcmp("read", shm_str)) {
-            sprintf(shm_str, "%s", "read");
+        if (mangoapp_ptr->read < 1) {
             update_hud_info(sw_stats, params, vendorID);
+            mangoapp_ptr->read = 1;
         } else {
             sleep(0.0001);
         }
@@ -163,11 +170,12 @@ int main(int, char**)
     }
     init_gpu_stats(vendorID, params);
     init_system_info();
-
+    sw_stats.engine = EngineTypes::GAMESCOPE;
     // Our state
     key_t key = ftok("mangoapp",65);
-    int shmid = shmget(key,1024,0666|IPC_CREAT);
-    shm_str = (char*) shmat(shmid,(void*)0,0);
+    int shmid = shmget(key,sizeof(mangoapp),0666|IPC_CREAT);
+    auto shm_address = shmat(shmid, (void*)0, 0);
+    mangoapp_ptr = (mangoapp*)shm_address;
     std::thread(read_thread).detach();
     // Main loop
     while (!glfwWindowShouldClose(window))
@@ -182,7 +190,7 @@ int main(int, char**)
         // Start the Dear ImGui frame
         ImGui_ImplOpenGL3_NewFrame();
         ImGui_ImplGlfw_NewFrame();
-
+        window_size.x = window_size.x * 1.1;
         ImGui::NewFrame();
         {
             check_keybinds(sw_stats, params, vendorID);
diff --git a/src/overlay.cpp b/src/overlay.cpp
index 208629a8..ff97497b 100644
--- a/src/overlay.cpp
+++ b/src/overlay.cpp
@@ -41,7 +41,7 @@ struct benchmark_stats benchmark;
 struct fps_limit fps_limit_stats {};
 ImVec2 real_font_size;
 std::vector<logData> graph_data;
-const char* engines[] = {"Unknown", "OpenGL", "VULKAN", "DXVK", "VKD3D", "DAMAVAND", "ZINK", "WINED3D", "Feral3D", "ToGL"};
+const char* engines[] = {"Unknown", "OpenGL", "VULKAN", "DXVK", "VKD3D", "DAMAVAND", "ZINK", "WINED3D", "Feral3D", "ToGL", "GAMESCOPE"};
 overlay_params *_params {};
 
 void update_hw_info(struct swapchain_stats& sw_stats, struct overlay_params& params, uint32_t vendorID)
diff --git a/src/overlay.h b/src/overlay.h
index 99731d30..49695652 100644
--- a/src/overlay.h
+++ b/src/overlay.h
@@ -39,6 +39,8 @@ enum EngineTypes
    WINED3D,
    FERAL3D,
    TOGL,
+
+   GAMESCOPE
 };
 
 extern const char* engines[];