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

1 files changed, 13 insertions, 0 deletions

diff --git a/BUILD.bazel b/BUILD.bazel
index c947e83..8fc9eca 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -13,3 +13,16 @@
 # limitations under the License.
 
 licenses(["notice"])
+
+cc_library(
+    name = "api",
+    hdrs = ["include/astc-codec/astc-codec.h"],
+    visibility = ["//src/decoder:__pkg__"],
+)
+
+cc_library(
+    name = "astc_codec",
+    deps = ["//src/decoder:codec"],
+    includes = ["include"],
+    visibility = ["//visibility:public"],
+)