From 22c83006a3edb90d96829dd08adc74d310e2dc01 Mon Sep 17 00:00:00 2001
From: Billy Laws <blaws05@gmail.com>
Date: Thu, 27 May 2021 22:26:46 +0100
Subject: [PATCH] Stub application copyright image AM calls

These are used on HOS to control the screenshot overlay image for
developer copyrights.
---
 .../am/controller/IApplicationFunctions.cpp   | 41 +++++++++++++++++++
 .../am/controller/IApplicationFunctions.h     | 27 +++++++++++-
 2 files changed, 67 insertions(+), 1 deletion(-)

diff --git a/app/src/main/cpp/skyline/services/am/controller/IApplicationFunctions.cpp b/app/src/main/cpp/skyline/services/am/controller/IApplicationFunctions.cpp
index f202fc9d..5b95be9f 100644
--- a/app/src/main/cpp/skyline/services/am/controller/IApplicationFunctions.cpp
+++ b/app/src/main/cpp/skyline/services/am/controller/IApplicationFunctions.cpp
@@ -62,6 +62,47 @@ namespace skyline::service::am {
         return {};
     }
 
+    Result IApplicationFunctions::InitializeApplicationCopyrightFrameBuffer(type::KSession &session, ipc::IpcRequest &request, ipc::IpcResponse &response) {
+        i32 width{request.Pop<i32>()};
+        i32 height{request.Pop<i32>()};
+        u64 transferMemorySize{request.Pop<u64>()};
+
+        constexpr i32 MaximumFbWidth{1280};
+        constexpr i32 MaximumFbHeight{720};
+        constexpr u64 RequiredFbAlignment{0x40000};
+
+        if (width > MaximumFbWidth || height > MaximumFbHeight || !util::IsAligned(transferMemorySize, RequiredFbAlignment))
+            return result::InvalidParameters;
+
+        state.logger->Debug("Dimensions: ({}, {}) Transfer Memory Size: {}", width, height, transferMemorySize);
+
+        return {};
+    }
+
+    Result IApplicationFunctions::SetApplicationCopyrightImage(type::KSession &session, ipc::IpcRequest &request, ipc::IpcResponse &response) {
+        i32 x{request.Pop<i32>()};
+        i32 y{request.Pop<i32>()};
+        i32 width{request.Pop<i32>()};
+        i32 height{request.Pop<i32>()};
+
+        enum class WindowOriginMode : i32 {
+            LowerLeft,
+            UpperLeft
+        } originMode = request.Pop<WindowOriginMode>();
+
+        if (y < 0 || x < 0 || width < 1 || height < 1)
+            return result::InvalidParameters;
+
+        state.logger->Debug("Position: ({}, {}) Dimensions: ({}, {}) Origin mode: {}", x, y, width, height, static_cast<i32>(originMode));
+        return {};
+    }
+
+    Result IApplicationFunctions::SetApplicationCopyrightVisibility(type::KSession &session, ipc::IpcRequest &request, ipc::IpcResponse &response) {
+        u8 visiblity{request.Pop<u8>()};
+        state.logger->Debug("Visiblity: {}", visiblity);
+        return {};
+    }
+
     Result IApplicationFunctions::GetGpuErrorDetectedSystemEvent(type::KSession &session, ipc::IpcRequest &request, ipc::IpcResponse &response) {
         auto handle{state.process->InsertItem(gpuErrorEvent)};
         state.logger->Debug("GPU Error Event Handle: 0x{:X}", handle);
diff --git a/app/src/main/cpp/skyline/services/am/controller/IApplicationFunctions.h b/app/src/main/cpp/skyline/services/am/controller/IApplicationFunctions.h
index ca6a6b89..c4ee7404 100644
--- a/app/src/main/cpp/skyline/services/am/controller/IApplicationFunctions.h
+++ b/app/src/main/cpp/skyline/services/am/controller/IApplicationFunctions.h
@@ -7,6 +7,10 @@
 #include <services/serviceman.h>
 
 namespace skyline::service::am {
+    namespace result {
+        constexpr Result InvalidParameters(128, 506);
+    }
+
     /**
      * @brief This is used to notify an application about its own state
      * @url https://switchbrew.org/wiki/Applet_Manager_services#IApplicationFunctions
@@ -60,6 +64,24 @@ namespace skyline::service::am {
          */
         Result SetGamePlayRecordingState(type::KSession &session, ipc::IpcRequest &request, ipc::IpcResponse &response);
 
+        /**
+         * @brief Uses the given transfer memory to setup memory for the screenshot copyright image
+         * @url https://switchbrew.org/wiki/Applet_Manager_services#InitializeApplicationCopyrightFrameBuffer
+         */
+        Result InitializeApplicationCopyrightFrameBuffer(type::KSession &session, ipc::IpcRequest &request, ipc::IpcResponse &response);
+
+        /**
+         * @brief Sets the copyright image for screenshots using the buffer from InitializeApplicationCopyrightFrameBuffer
+         * @url https://switchbrew.org/wiki/Applet_Manager_services#SetApplicationCopyrightImage
+         */
+        Result SetApplicationCopyrightImage(type::KSession &session, ipc::IpcRequest &request, ipc::IpcResponse &response);
+
+        /**
+         * @brief Controls the visibility of the screenshot copyright image
+         * @url https://switchbrew.org/wiki/Applet_Manager_services#SetApplicationCopyrightVisibility
+         */
+        Result SetApplicationCopyrightVisibility(type::KSession &session, ipc::IpcRequest &request, ipc::IpcResponse &response);
+
         /**
          * @brief Obtains a handle to the system GPU error KEvent
          * @url https://switchbrew.org/wiki/Applet_Manager_services#GetGpuErrorDetectedSystemEvent
@@ -74,8 +96,11 @@ namespace skyline::service::am {
             SFUNC(0x32, IApplicationFunctions, GetPseudoDeviceId),
             SFUNC(0x42, IApplicationFunctions, InitializeGamePlayRecording),
             SFUNC(0x43, IApplicationFunctions, SetGamePlayRecordingState),
-            SFUNC(0x64, IApplicationFunctions, SetGamePlayRecordingState),
+            SFUNC(0x64, IApplicationFunctions, InitializeApplicationCopyrightFrameBuffer),
+            SFUNC(0x65, IApplicationFunctions, SetApplicationCopyrightImage),
+            SFUNC(0x66, IApplicationFunctions, SetApplicationCopyrightVisibility),
             SFUNC(0x82, IApplicationFunctions, GetGpuErrorDetectedSystemEvent)
         )
+
     };
 }