diff options
author | Jeff McGlynn <jwmcglynn@google.com> | 2018-06-20 11:34:20 -0700 |
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committer | Jeff McGlynn <jwmcglynn@google.com> | 2018-06-20 11:50:22 -0700 |
commit | b56a50064caf2a590ba43699e0074690fcd431bf (patch) | |
tree | d81c98f2d097f9b32f23cffef7afa6725a182e66 /src/decoder/codec.h | |
parent | ce724a5f1c94f539a6bf956fc6431c37e97961a9 (diff) |
Initial version of astc-codec for open source release
Contains an implementation of an ASTC decoder that is able to pass the
dEQP ASTC LDR tests.
astc-codec has no external dependencies for the main library, only for
test code, and is licensed under the Apache license.
Components:
include/ - Public API that can decode ASTC LDR data into a RGBA UNORM8
buffer.
src/base/ - Base library with common functionality not directly related
to ASTC decoding. Contains a uint128 implementation, BitStream for
reading/writing bits with a primitive (or uint128 type), Optional
implementation (to not take a dependency on C++17), and more.
src/decoder/ - Internal implementation of the ASTC decoder.
src/base/test/, src/decoder/test/ - Unit tests (and a fuzzing test) for
the astc decoder.
src/decoder/testdata/ - Sample ASTC images and golden image results for
testing.
src/decoder/tools/ - A tool to inspect contents of an ASTC file.
third_party/ - Third party libraries, only used for tests.
Change-Id: Ia98e5a7dc847daa3d3a48c5e62d94b8fb1cb98bd
Diffstat (limited to 'src/decoder/codec.h')
-rw-r--r-- | src/decoder/codec.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/decoder/codec.h b/src/decoder/codec.h new file mode 100644 index 0000000..eed601a --- /dev/null +++ b/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_ |