bazel/external/libjxl/BUILD.bazel

# This file will be copied into //third_party/externals/libjxl via the new_local_repository
# rule in WORKSPACE.bazel, so all files should be relative to that path.

# jxl_export.h appears to be a configuration file where clients can override what JXL_EXPORT
# and JXL_DEPRECATED are. Our GN rules defined these as empty macros. Instead of doing that,
# we just make a blank file here and define those empty macros in the cc_library rule.
genrule(
    name = "generate_jxl_export",
    outs = ["lib/include/jxl/jxl_export.h"],
    cmd = "echo '' > $@",
)

JPEG_XL_SRCS = [
    "lib/jxl/ac_context.h",
    "lib/jxl/ac_strategy.cc",
    "lib/jxl/ac_strategy.h",
    "lib/jxl/alpha.cc",
    "lib/jxl/alpha.h",
    "lib/jxl/ans_common.cc",
    "lib/jxl/ans_common.h",
    "lib/jxl/ans_params.h",
    "lib/jxl/aux_out.cc",
    "lib/jxl/aux_out.h",
    "lib/jxl/aux_out_fwd.h",
    "lib/jxl/base/arch_macros.h",
    "lib/jxl/base/bits.h",
    "lib/jxl/base/byte_order.h",
    "lib/jxl/base/cache_aligned.cc",
    "lib/jxl/base/cache_aligned.h",
    "lib/jxl/base/compiler_specific.h",
    "lib/jxl/base/data_parallel.cc",
    "lib/jxl/base/data_parallel.h",
    "lib/jxl/base/descriptive_statistics.cc",
    "lib/jxl/base/descriptive_statistics.h",
    "lib/jxl/base/file_io.h",
    "lib/jxl/base/iaca.h",
    "lib/jxl/base/os_macros.h",
    "lib/jxl/base/override.h",
    "lib/jxl/base/padded_bytes.cc",
    "lib/jxl/base/padded_bytes.h",
    "lib/jxl/base/profiler.h",
    "lib/jxl/base/robust_statistics.h",
    "lib/jxl/base/span.h",
    "lib/jxl/base/status.cc",
    "lib/jxl/base/status.h",
    "lib/jxl/base/thread_pool_internal.h",
    "lib/jxl/blending.cc",
    "lib/jxl/blending.h",
    "lib/jxl/chroma_from_luma.cc",
    "lib/jxl/chroma_from_luma.h",
    "lib/jxl/codec_in_out.h",
    "lib/jxl/coeff_order.cc",
    "lib/jxl/coeff_order.h",
    "lib/jxl/coeff_order_fwd.h",
    "lib/jxl/color_encoding_internal.cc",
    "lib/jxl/color_encoding_internal.h",
    "lib/jxl/color_management.cc",
    "lib/jxl/color_management.h",
    "lib/jxl/common.h",
    "lib/jxl/compressed_dc.cc",
    "lib/jxl/compressed_dc.h",
    "lib/jxl/convolve-inl.h",
    "lib/jxl/convolve.cc",
    "lib/jxl/convolve.h",
    "lib/jxl/dct-inl.h",
    "lib/jxl/dct_block-inl.h",
    "lib/jxl/dct_for_test.h",
    "lib/jxl/dct_scales.cc",
    "lib/jxl/dct_scales.h",
    "lib/jxl/dct_util.h",
    "lib/jxl/dec_ans.cc",
    "lib/jxl/dec_ans.h",
    "lib/jxl/dec_bit_reader.h",
    "lib/jxl/dec_cache.cc",
    "lib/jxl/dec_cache.h",
    "lib/jxl/dec_context_map.cc",
    "lib/jxl/dec_context_map.h",
    "lib/jxl/dec_external_image.cc",
    "lib/jxl/dec_external_image.h",
    "lib/jxl/dec_file.h",
    "lib/jxl/dec_frame.cc",
    "lib/jxl/dec_frame.h",
    "lib/jxl/dec_group.cc",
    "lib/jxl/dec_group.h",
    "lib/jxl/dec_group_border.cc",
    "lib/jxl/dec_group_border.h",
    "lib/jxl/dec_huffman.cc",
    "lib/jxl/dec_huffman.h",
    "lib/jxl/dec_modular.cc",
    "lib/jxl/dec_modular.h",
    "lib/jxl/dec_noise.cc",
    "lib/jxl/dec_noise.h",
    "lib/jxl/dec_params.h",
    "lib/jxl/dec_patch_dictionary.cc",
    "lib/jxl/dec_patch_dictionary.h",
    "lib/jxl/dec_reconstruct.cc",
    "lib/jxl/dec_reconstruct.h",
    "lib/jxl/dec_render_pipeline.h",
    "lib/jxl/dec_transforms-inl.h",
    "lib/jxl/dec_transforms_testonly.h",
    "lib/jxl/dec_upsample.cc",
    "lib/jxl/dec_upsample.h",
    "lib/jxl/dec_xyb-inl.h",
    "lib/jxl/dec_xyb.cc",
    "lib/jxl/dec_xyb.h",
    "lib/jxl/decode.cc",
    "lib/jxl/decode_to_jpeg.cc",
    "lib/jxl/decode_to_jpeg.h",
    "lib/jxl/enc_ac_strategy.h",
    "lib/jxl/enc_adaptive_quantization.h",
    "lib/jxl/enc_ans.h",
    "lib/jxl/enc_ans_params.h",
    "lib/jxl/enc_ar_control_field.h",
    "lib/jxl/enc_bit_writer.cc",
    "lib/jxl/enc_bit_writer.h",
    "lib/jxl/enc_butteraugli_comparator.h",
    "lib/jxl/enc_butteraugli_pnorm.h",
    "lib/jxl/enc_cache.h",
    "lib/jxl/enc_chroma_from_luma.h",
    "lib/jxl/enc_cluster.h",
    "lib/jxl/enc_coeff_order.h",
    "lib/jxl/enc_color_management.h",
    "lib/jxl/enc_comparator.h",
    "lib/jxl/enc_context_map.h",
    "lib/jxl/enc_detect_dots.h",
    "lib/jxl/enc_dot_dictionary.h",
    "lib/jxl/enc_entropy_coder.h",
    "lib/jxl/enc_external_image.h",
    "lib/jxl/enc_file.h",
    "lib/jxl/enc_frame.h",
    "lib/jxl/enc_gamma_correct.h",
    "lib/jxl/enc_group.h",
    "lib/jxl/enc_heuristics.h",
    "lib/jxl/enc_huffman.h",
    "lib/jxl/enc_icc_codec.h",
    "lib/jxl/enc_image_bundle.h",
    "lib/jxl/enc_jxl_skcms.h",
    "lib/jxl/enc_modular.h",
    "lib/jxl/enc_noise.h",
    "lib/jxl/enc_params.h",
    "lib/jxl/enc_patch_dictionary.h",
    "lib/jxl/enc_photon_noise.h",
    "lib/jxl/enc_quant_weights.h",
    "lib/jxl/enc_splines.h",
    "lib/jxl/enc_toc.h",
    "lib/jxl/enc_transforms-inl.h",
    "lib/jxl/enc_transforms.h",
    "lib/jxl/enc_xyb.h",
    "lib/jxl/encode_internal.h",
    "lib/jxl/entropy_coder.cc",
    "lib/jxl/entropy_coder.h",
    "lib/jxl/epf.cc",
    "lib/jxl/epf.h",
    "lib/jxl/fake_parallel_runner_testonly.h",
    "lib/jxl/fast_math-inl.h",
    "lib/jxl/field_encodings.h",
    "lib/jxl/fields.cc",
    "lib/jxl/fields.h",
    "lib/jxl/filters.cc",
    "lib/jxl/filters.h",
    "lib/jxl/filters_internal.h",
    "lib/jxl/frame_header.cc",
    "lib/jxl/frame_header.h",
    "lib/jxl/gaborish.h",
    "lib/jxl/gauss_blur.cc",
    "lib/jxl/gauss_blur.h",
    "lib/jxl/headers.cc",
    "lib/jxl/headers.h",
    "lib/jxl/huffman_table.cc",
    "lib/jxl/huffman_table.h",
    "lib/jxl/huffman_tree.h",
    "lib/jxl/icc_codec.cc",
    "lib/jxl/icc_codec.h",
    "lib/jxl/icc_codec_common.cc",
    "lib/jxl/icc_codec_common.h",
    "lib/jxl/image.cc",
    "lib/jxl/image.h",
    "lib/jxl/image_bundle.cc",
    "lib/jxl/image_bundle.h",
    "lib/jxl/image_metadata.cc",
    "lib/jxl/image_metadata.h",
    "lib/jxl/image_ops.h",
    "lib/jxl/image_test_utils.h",
    "lib/jxl/jpeg/dec_jpeg_data.cc",
    "lib/jxl/jpeg/dec_jpeg_data.h",
    "lib/jxl/jpeg/dec_jpeg_data_writer.cc",
    "lib/jxl/jpeg/dec_jpeg_data_writer.h",
    "lib/jxl/jpeg/jpeg_data.cc",
    "lib/jxl/jpeg/jpeg_data.h",
    "lib/jxl/jpeg/dec_jpeg_serialization_state.h",
    "lib/jxl/jpeg/dec_jpeg_output_chunk.h",
    "lib/jxl/jxl_inspection.h",
    "lib/jxl/lehmer_code.h",
    "lib/jxl/linalg.h",
    "lib/jxl/loop_filter.cc",
    "lib/jxl/loop_filter.h",
    "lib/jxl/luminance.cc",
    "lib/jxl/luminance.h",
    "lib/jxl/memory_manager_internal.cc",
    "lib/jxl/memory_manager_internal.h",
    "lib/jxl/modular/encoding/context_predict.h",
    "lib/jxl/modular/encoding/dec_ma.cc",
    "lib/jxl/modular/encoding/dec_ma.h",
    "lib/jxl/modular/encoding/encoding.cc",
    "lib/jxl/modular/encoding/encoding.h",
    "lib/jxl/modular/encoding/ma_common.h",
    "lib/jxl/modular/modular_image.cc",
    "lib/jxl/modular/modular_image.h",
    "lib/jxl/modular/options.h",
    "lib/jxl/modular/transform/palette.h",
    "lib/jxl/modular/transform/rct.h",
    "lib/jxl/modular/transform/squeeze.cc",
    "lib/jxl/modular/transform/squeeze.h",
    "lib/jxl/modular/transform/transform.cc",
    "lib/jxl/modular/transform/transform.h",
    "lib/jxl/noise.h",
    "lib/jxl/noise_distributions.h",
    "lib/jxl/opsin_params.cc",
    "lib/jxl/opsin_params.h",
    "lib/jxl/optimize.h",
    "lib/jxl/passes_state.cc",
    "lib/jxl/passes_state.h",
    "lib/jxl/patch_dictionary_internal.h",
    "lib/jxl/progressive_split.h",
    "lib/jxl/quant_weights.cc",
    "lib/jxl/quant_weights.h",
    "lib/jxl/quantizer-inl.h",
    "lib/jxl/quantizer.cc",
    "lib/jxl/quantizer.h",
    "lib/jxl/rational_polynomial-inl.h",
    "lib/jxl/sanitizers.h",
    "lib/jxl/splines.cc",
    "lib/jxl/splines.h",
    "lib/jxl/test_utils.h",
    "lib/jxl/testdata.h",
    "lib/jxl/toc.cc",
    "lib/jxl/toc.h",
    "lib/jxl/transfer_functions-inl.h",
    "lib/jxl/transpose-inl.h",
    "lib/jxl/xorshift128plus-inl.h",
]

JPEG_XL_HDRS = [
    "lib/include/jxl/decode.h",
    "lib/include/jxl/decode_cxx.h",
    "lib/include/jxl/codestream_header.h",
    "lib/include/jxl/color_encoding.h",
    "lib/include/jxl/memory_manager.h",
    "lib/include/jxl/parallel_runner.h",
    "lib/include/jxl/types.h",
    "lib/include/jxl/jxl_export.h",
]

JPEG_XL_LOCAL_DEFINES = [
    # Does not really matter.
    "JPEGXL_MAJOR_VERSION=1",
    "JPEGXL_MINOR_VERSION=0",
    "JPEGXL_PATCH_VERSION=0",
    "JPEGXL_ENABLE_SKCMS=1",
]

JPEG_XL_PUBLIC_DEFINES = [
    # This impacts some of the header files, so it must be public
    "JPEGXL_ENABLE_TRANSCODE_JPEG=0",
    "JXL_DEPRECATED=",
    "JXL_EXPORT=",
]

cc_library(
    name = "libjxl",
    srcs = JPEG_XL_SRCS,
    hdrs = JPEG_XL_HDRS,
    copts = [
        # jxl includes highway with angle brackets, but highway does not have an "includes"
        # attribute. This makes Bazel add the include folders of the dependency using -iquote
        # and thus clang throws an error about that. It is easier to add an extra include
        # path than figuring out if we should upstream the change to libjxl and/or highway.
        "-isystem external/highway",
        "-Wno-unused-function",
    ],
    defines = JPEG_XL_PUBLIC_DEFINES,
    includes = ["lib/include"],  # We include jxl files from this folder
    local_defines = JPEG_XL_LOCAL_DEFINES,
    visibility = ["//visibility:public"],
    deps = [
        "@brotli//:brotlidec",
        "@highway//:hwy",
    ],
)