1 files changed, 72 insertions, 0 deletions

diff --git a/src/core/hle/applets/erreula.cpp b/src/core/hle/applets/erreula.cpp
new file mode 100644
index 000000000..92a4b2323
--- /dev/null
+++ b/src/core/hle/applets/erreula.cpp
@@ -0,0 +1,72 @@
+// Copyright 2016 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/string_util.h"
+
+#include "core/hle/applets/erreula.h"
+#include "core/hle/service/apt/apt.h"
+
+namespace HLE {
+namespace Applets {
+
+ResultCode ErrEula::ReceiveParameter(const Service::APT::MessageParameter& parameter) {
+    if (parameter.signal != static_cast<u32>(Service::APT::SignalType::LibAppJustStarted)) {
+        LOG_ERROR(Service_APT, "unsupported signal %u", parameter.signal);
+        UNIMPLEMENTED();
+        // TODO(Subv): Find the right error code
+        return ResultCode(-1);
+    }
+
+    // The LibAppJustStarted message contains a buffer with the size of the framebuffer shared memory.
+    // Create the SharedMemory that will hold the framebuffer data
+    Service::APT::CaptureBufferInfo capture_info;
+    ASSERT(sizeof(capture_info) == parameter.buffer.size());
+
+    memcpy(&capture_info, parameter.buffer.data(), sizeof(capture_info));
+
+    // TODO: allocated memory never released
+    using Kernel::MemoryPermission;
+    // Allocate a heap block of the required size for this applet.
+    heap_memory = std::make_shared<std::vector<u8>>(capture_info.size);
+    // Create a SharedMemory that directly points to this heap block.
+    framebuffer_memory = Kernel::SharedMemory::CreateForApplet(heap_memory, 0, heap_memory->size(),
+                                                               MemoryPermission::ReadWrite, MemoryPermission::ReadWrite,
+                                                               "ErrEula Memory");
+
+    // Send the response message with the newly created SharedMemory
+    Service::APT::MessageParameter result;
+    result.signal = static_cast<u32>(Service::APT::SignalType::LibAppFinished);
+    result.buffer.clear();
+    result.destination_id = static_cast<u32>(Service::APT::AppletId::Application);
+    result.sender_id = static_cast<u32>(id);
+    result.object = framebuffer_memory;
+
+    Service::APT::SendParameter(result);
+    return RESULT_SUCCESS;
+}
+
+ResultCode ErrEula::StartImpl(const Service::APT::AppletStartupParameter& parameter) {
+    started = true;
+
+    // TODO(Subv): Set the expected fields in the response buffer before resending it to the application.
+    // TODO(Subv): Reverse the parameter format for the ErrEula applet
+
+    // Let the application know that we're closing
+    Service::APT::MessageParameter message;
+    message.buffer.resize(parameter.buffer.size());
+    std::fill(message.buffer.begin(), message.buffer.end(), 0);
+    message.signal = static_cast<u32>(Service::APT::SignalType::LibAppClosed);
+    message.destination_id = static_cast<u32>(Service::APT::AppletId::Application);
+    message.sender_id = static_cast<u32>(id);
+    Service::APT::SendParameter(message);
+
+    started = false;
+    return RESULT_SUCCESS;
+}
+
+void ErrEula::Update() {
+}
+
+} // namespace Applets
+} // namespace HLE