refactor jpegdec implementation into libstrat (thanks again, Behemoth!)

libraries/libstratosphere/source/capsrv/server/capsrv_server_decoder_api.cpp

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2018-2020 Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <stratosphere.hpp>
+#include "decodersrv/decodersrv_decoder_server_object.hpp"
+
+namespace ams::capsrv::server {
+
+    namespace {
+
+        bool g_initialized = false;
+
+    }
+
+    Result InitializeForDecoderServer() {
+        /* Ensure we initialize only once. */
+        AMS_ABORT_UNLESS(!g_initialized);
+
+        /* Clear work memory. */
+        std::memset(std::addressof(g_work_memory), 0, sizeof(g_work_memory));
+
+        /* Initialize the decoder server. */
+        R_ABORT_UNLESS(g_decoder_control_server_manager.Initialize());
+
+        /* Start the server. */
+        g_decoder_control_server_manager.StartServer();
+
+        /* We're initialized. */
+        g_initialized = true;
+        return ResultSuccess();
+    }
+
+    void FinalizeForDecoderServer() {
+        /* Ensure we don't finalize when uninitialized. */
+        AMS_ABORT_UNLESS(g_initialized);
+
+        /* Finalize the server. */
+        g_decoder_control_server_manager.Finalize();
+
+        /* Mark uninitialized. */
+        g_initialized = false;
+    }
+
+    void DecoderControlServerThreadFunction(void *) {
+        /* We need to be initialized. */
+        AMS_ABORT_UNLESS(g_initialized);
+
+        /* Run the server. */
+        g_decoder_control_server_manager.RunServer();
+    }
+
+}