4 files changed, 134 insertions, 1 deletions
diff --git a/src/core/hle/applets/applet.cpp b/src/core/hle/applets/applet.cpp
index 645b2d5fe..9c43ed2fd 100644
--- a/src/core/hle/applets/applet.cpp
+++ b/src/core/hle/applets/applet.cpp
@@ -12,6 +12,7 @@
 #include "core/hle/applets/applet.h"
 #include "core/hle/applets/erreula.h"
 #include "core/hle/applets/mii_selector.h"
+#include "core/hle/applets/mint.h"
 #include "core/hle/applets/swkbd.h"
 #include "core/hle/result.h"
 #include "core/hle/service/apt/apt.h"
@@ -56,6 +57,10 @@ ResultCode Applet::Create(Service::APT::AppletId id) {
     case Service::APT::AppletId::Error2:
         applets[id] = std::make_shared<ErrEula>(id);
         break;
+    case Service::APT::AppletId::Mint:
+    case Service::APT::AppletId::Mint2:
+        applets[id] = std::make_shared<Mint>(id);
+        break;
     default:
         LOG_ERROR(Service_APT, "Could not create applet %u", id);
         // TODO(Subv): Find the right error code
diff --git a/src/core/hle/applets/mint.cpp b/src/core/hle/applets/mint.cpp
new file mode 100644
index 000000000..31a79ea17
--- /dev/null
+++ b/src/core/hle/applets/mint.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/mint.h"
+#include "core/hle/service/apt/apt.h"
+
+namespace HLE {
+namespace Applets {
+
+ResultCode Mint::ReceiveParameter(const Service::APT::MessageParameter& parameter) {
+    if (parameter.signal != static_cast<u32>(Service::APT::SignalType::Request)) {
+        LOG_ERROR(Service_APT, "unsupported signal %u", parameter.signal);
+        UNIMPLEMENTED();
+        // TODO(Subv): Find the right error code
+        return ResultCode(-1);
+    }
+
+    // The Request 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, "Mint Memory");
+
+    // Send the response message with the newly created SharedMemory
+    Service::APT::MessageParameter result;
+    result.signal = static_cast<u32>(Service::APT::SignalType::Response);
+    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 Mint::StartImpl(const Service::APT::AppletStartupParameter& parameter) {
+    is_running = 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 Mint 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::WakeupByExit);
+    message.destination_id = static_cast<u32>(Service::APT::AppletId::Application);
+    message.sender_id = static_cast<u32>(id);
+    Service::APT::SendParameter(message);
+
+    is_running = false;
+    return RESULT_SUCCESS;
+}
+
+void Mint::Update() {}
+
+} // namespace Applets
+} // namespace HLE
diff --git a/src/core/hle/applets/mint.h b/src/core/hle/applets/mint.h
new file mode 100644
index 000000000..d23dc40f9
--- /dev/null
+++ b/src/core/hle/applets/mint.h
@@ -0,0 +1,29 @@
+// Copyright 2016 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/hle/applets/applet.h"
+#include "core/hle/kernel/shared_memory.h"
+
+namespace HLE {
+namespace Applets {
+
+class Mint final : public Applet {
+public:
+    explicit Mint(Service::APT::AppletId id) : Applet(id) {}
+
+    ResultCode ReceiveParameter(const Service::APT::MessageParameter& parameter) override;
+    ResultCode StartImpl(const Service::APT::AppletStartupParameter& parameter) override;
+    void Update() override;
+
+private:
+    /// This SharedMemory will be created when we receive the Request message.
+    /// It holds the framebuffer info retrieved by the application with
+    /// GSPGPU::ImportDisplayCaptureInfo
+    Kernel::SharedPtr<Kernel::SharedMemory> framebuffer_memory;
+};
+
+} // namespace Applets
+} // namespace HLE
diff --git a/src/core/hle/service/gsp_gpu.cpp b/src/core/hle/service/gsp_gpu.cpp
index a8c1331ed..1457518d4 100644
--- a/src/core/hle/service/gsp_gpu.cpp
+++ b/src/core/hle/service/gsp_gpu.cpp
@@ -705,6 +705,33 @@ static void ReleaseRight(Interface* self) {
     LOG_WARNING(Service_GSP, "called");
 }
 
+/**
+ * GSP_GPU::StoreDataCache service function
+ *
+ * This Function is a no-op, We aren't emulating the CPU cache any time soon.
+ *
+ *  Inputs:
+ *      0 : Header code [0x001F0082]
+ *      1 : Address
+ *      2 : Size
+ *      3 : Value 0, some descriptor for the KProcess Handle
+ *      4 : KProcess handle
+ *  Outputs:
+ *      1 : Result of function, 0 on success, otherwise error code
+ */
+static void StoreDataCache(Interface* self) {
+    u32* cmd_buff = Kernel::GetCommandBuffer();
+    u32 address = cmd_buff[1];
+    u32 size = cmd_buff[2];
+    u32 process = cmd_buff[4];
+
+    cmd_buff[0] = IPC::MakeHeader(0x1F, 0x1, 0);
+    cmd_buff[1] = RESULT_SUCCESS.raw; // No error
+
+    LOG_DEBUG(Service_GSP, "(STUBBED) called address=0x%08X, size=0x%08X, process=0x%08X", address,
+              size, process);
+}
+
 const Interface::FunctionInfo FunctionTable[] = {
     {0x00010082, WriteHWRegs, "WriteHWRegs"},
     {0x00020084, WriteHWRegsWithMask, "WriteHWRegsWithMask"},
@@ -736,7 +763,7 @@ const Interface::FunctionInfo FunctionTable[] = {
     {0x001C0040, nullptr, "SetLedForceOff"},
     {0x001D0040, nullptr, "SetTestCommand"},
     {0x001E0080, nullptr, "SetInternalPriorities"},
-    {0x001F0082, nullptr, "StoreDataCache"},
+    {0x001F0082, StoreDataCache, "StoreDataCache"},
 };
 
 GSP_GPU::GSP_GPU() {