Added astc-codec decoder.

3rdparty/astc-codec/src/decoder/codec.h

@@ -0,0 +1,41 @@
+// Copyright 2018 Google LLC
+//
+// 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
+//
+//     https://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.
+
+#ifndef ASTC_CODEC_DECODER_CODEC_H_
+#define ASTC_CODEC_DECODER_CODEC_H_
+
+#include "src/decoder/astc_file.h"
+#include "src/decoder/footprint.h"
+
+#include <string>
+
+namespace astc_codec {
+
+// Decompresses ASTC blocks to an image buffer.
+// Returns true if the decompression succeeded and the out buffer has been
+// filled.
+bool DecompressToImage(const uint8_t* astc_data, size_t astc_data_size,
+                       size_t width, size_t height, Footprint footprint,
+                       uint8_t* out_buffer, size_t out_buffer_size,
+                       size_t out_buffer_stride);
+
+// Decompresses an ASTC file to an image buffer.
+// Returns true if the decompression succeeded and the out buffer has been
+// filled.
+bool DecompressToImage(const ASTCFile& file, uint8_t* out_buffer,
+                       size_t out_buffer_size, size_t out_buffer_stride);
+
+}  // namespace astc_codec
+
+#endif  // ASTC_CODEC_DECODER_CODEC_H_