Added appletIsSystemBufferSharingEnabled, appletGetSystemSharedLayerHandle, and appletGetSystemSharedBufferHandle.

nx/include/switch/services/applet.h

@@ -519,6 +519,27 @@ Result appletSetDesirableKeyboardLayout(u32 layout);
 
 Result appletCreateManagedDisplayLayer(u64 *out);
 
+/**
+ * @brief Checks whether SystemBufferSharing is enabled, throwing an error otherwise.
+ * @note Only available with [4.0.0+]. Not usable with AppletType_*Application.
+ */
+Result appletIsSystemBufferSharingEnabled(void);
+
+/**
+ * @brief Gets the System SharedBufferHandle and SharedLayerHandle.
+ * @note Only available with [4.0.0+]. Not usable with AppletType_*Application.
+ * @param[out] SharedBufferHandle Output System SharedBufferHandle.
+ * @param[out] SharedLayerHandle Output System SharedLayerHandle.
+ */
+Result appletGetSystemSharedLayerHandle(u64 *SharedBufferHandle, u64 *SharedLayerHandle);
+
+/**
+ * @brief Same as \ref appletGetSystemSharedLayerHandle except this just gets the SharedBufferHandle.
+ * @note Only available with [5.0.0+]. Not usable with AppletType_*Application.
+ * @param[out] SharedBufferHandle Output System SharedBufferHandle.
+ */
+Result appletGetSystemSharedBufferHandle(u64 *SharedBufferHandle);
+
 /**
  * @brief Sets whether ::AppletNotificationMessage_RequestToDisplay is enabled.
  * @note Sets an internal state flag. When the input flag is 0, this will in additional run the same code as \ref appletApproveToDisplay.

nx/source/services/applet.c

@@ -2242,7 +2242,6 @@ Result appletSetScreenShotAppletIdentityInfo(AppletIdentityInfo *info) {
         struct {
             u64 magic;
             u64 result;
-            AppletIdentityInfo info;
         } *resp;
 
         serviceIpcParse(&g_appletISelfController, &r, sizeof(*resp));
@@ -2290,6 +2289,60 @@ Result appletCreateManagedDisplayLayer(u64 *out) {
     return _appletCmdNoInOut64(&g_appletISelfController, out, 40);
 }
 
+Result appletIsSystemBufferSharingEnabled(void) {
+    if (hosversionBefore(4,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _appletCmdNoIO(&g_appletISelfController, 41);
+}
+
+Result appletGetSystemSharedLayerHandle(u64 *SharedBufferHandle, u64 *SharedLayerHandle) {
+    if (hosversionBefore(4,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    IpcCommand c;
+    ipcInitialize(&c);
+
+    struct {
+        u64 magic;
+        u64 cmd_id;
+    } *raw;
+
+    raw = serviceIpcPrepareHeader(&g_appletISelfController, &c, sizeof(*raw));
+
+    raw->magic = SFCI_MAGIC;
+    raw->cmd_id = 42;
+
+    Result rc = serviceIpcDispatch(&g_appletISelfController);
+
+    if (R_SUCCEEDED(rc)) {
+        IpcParsedCommand r;
+        struct {
+            u64 magic;
+            u64 result;
+            u64 SharedBufferHandle;
+            u64 SharedLayerHandle;
+        } *resp;
+
+        serviceIpcParse(&g_appletISelfController, &r, sizeof(*resp));
+        resp = r.Raw;
+
+        rc = resp->result;
+
+        if (R_SUCCEEDED(rc) && SharedBufferHandle) *SharedBufferHandle = resp->SharedBufferHandle;
+        if (R_SUCCEEDED(rc) && SharedLayerHandle) *SharedLayerHandle = resp->SharedLayerHandle;
+    }
+
+    return rc;
+}
+
+Result appletGetSystemSharedBufferHandle(u64 *SharedBufferHandle) {
+    if (hosversionBefore(5,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _appletCmdNoInOut64(&g_appletISelfController, SharedBufferHandle, 43);
+}
+
 Result appletSetHandlesRequestToDisplay(bool flag) {
     return _appletCmdInBool(&g_appletISelfController, flag, 50);
 }