Merge commit '1c189bfd9c34436956d439355e3ecab85ad22afa' as 'external/libqoirdo'

external/libqoirdo/qoirdo.hpp

@@ -0,0 +1,35 @@
+#pragma once
+
+// qoirdo.hpp
+// Copyright (C) 2022 Richard Geldreich, Jr. All Rights Reserved.
+// Copyright (C) 2025 Erik Scholz
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <cstdint>
+#include <vector>
+
+bool init_qoi_rdo(void);
+bool quit_qoi_rdo(void);
+
+struct qoi_rdo_desc {
+	unsigned int width;
+	unsigned int height;
+	unsigned char channels;
+	unsigned char colorspace;
+};
+
+// quality 1-100
+std::vector<uint8_t> encode_qoi_rdo_simple(const uint8_t* data, const qoi_rdo_desc& desc, int quality);
+
+// TODO: finetuneable
+//uint8_t* encode_qoi_rdo_advanced(const uint8_t* data, const qoi_rdo_desc* desc, int* out_len);