| load("@rules_cc//cc:defs.bzl", "cc_library") |
| |
| package(default_visibility = ["//:__subpackages__"]) |
| |
| LIBPNG_SRCS = [ |
| "externals/libpng/png.c", |
| "externals/libpng/pngconf.h", |
| "externals/libpng/pngdebug.h", |
| "externals/libpng/pngerror.c", |
| "externals/libpng/pngget.c", |
| "externals/libpng/pnginfo.h", |
| "externals/libpng/pngmem.c", |
| "externals/libpng/pngpread.c", |
| "externals/libpng/pngpriv.h", |
| "externals/libpng/pngread.c", |
| "externals/libpng/pngrio.c", |
| "externals/libpng/pngrtran.c", |
| "externals/libpng/pngrutil.c", |
| "externals/libpng/pngset.c", |
| "externals/libpng/pngstruct.h", |
| "externals/libpng/pngtrans.c", |
| "externals/libpng/pngwio.c", |
| "externals/libpng/pngwrite.c", |
| "externals/libpng/pngwtran.c", |
| "externals/libpng/pngwutil.c", |
| "libpng/pnglibconf.h", |
| ] + select({ |
| "@platforms//cpu:x86_64": [ |
| "externals/libpng/intel/filter_sse2_intrinsics.c", |
| "externals/libpng/intel/intel_init.c", |
| ], |
| "@platforms//cpu:arm": [ |
| "externals/libpng/arm/arm_init.c", |
| "externals/libpng/arm/filter_neon_intrinsics.c", |
| "externals/libpng/arm/palette_neon_intrinsics.c", |
| ], |
| # No SIMD support in wasm for now |
| "//bazel/common_config_settings:cpu_wasm": [], |
| # The default is to avoid using SIMD |
| "//conditions:default": [], |
| }) |
| |
| PNG_DEFINES = ["PNG_SET_OPTION_SUPPORTED"] + select({ |
| "@platforms//cpu:x86_64": ["PNG_INTEL_SSE"], |
| "//conditions:default": [], |
| }) |
| |
| cc_library( |
| name = "libpng", |
| srcs = LIBPNG_SRCS, |
| hdrs = [ |
| "externals/libpng/png.h", |
| ], |
| copts = [ |
| "-Ithird_party/libpng/", |
| "-Wno-unused-but-set-variable", |
| ], |
| includes = [ |
| # This adds -isystem "third_party/externals/libpng" to any dependent |
| # compilation steps. This allows #include <png.h> to work |
| "externals/libpng", |
| # png.h attempts to #include "pnglibconf.h" , which we store in //third_party/libpng/ |
| # This rule adds -isystem "third_party/externals/libpng" to any dependent |
| # rule on this, which avoids having to add "-Ithird_party/libpng/" to copts for |
| # those dependent rules. |
| "libpng", |
| ], |
| local_defines = PNG_DEFINES, |
| # This is included by //third_party/libpng/pnglibconf.h, but because it is not a .h |
| # file, we must tell Bazel to explicitly bring it in as an "includable". |
| textual_hdrs = ["externals/libpng/scripts/pnglibconf.h.prebuilt"], |
| deps = [":zlib"], |
| ) |
| |
| ZLIB_SRCS = [ |
| "externals/zlib/adler32.c", |
| "externals/zlib/compress.c", |
| "externals/zlib/contrib/optimizations/insert_string.h", |
| "externals/zlib/cpu_features.c", |
| "externals/zlib/cpu_features.h", |
| "externals/zlib/crc32.h", |
| "externals/zlib/crc32.c", |
| "externals/zlib/deflate.c", |
| "externals/zlib/deflate.h", |
| "externals/zlib/gzclose.c", |
| "externals/zlib/gzguts.h", |
| "externals/zlib/gzlib.c", |
| "externals/zlib/gzread.c", |
| "externals/zlib/gzwrite.c", |
| "externals/zlib/infback.c", |
| "externals/zlib/inffast.c", |
| "externals/zlib/inffast.h", |
| "externals/zlib/inflate.h", |
| "externals/zlib/inftrees.c", |
| "externals/zlib/inftrees.h", |
| "externals/zlib/trees.c", |
| "externals/zlib/trees.h", |
| "externals/zlib/uncompr.c", |
| "externals/zlib/inffixed.h", |
| "externals/zlib/zutil.c", |
| "externals/zlib/zutil.h", |
| ] + select({ |
| "@platforms//cpu:x86_64": [ |
| "externals/zlib/adler32_simd.h", |
| "externals/zlib/adler32_simd.c", |
| "externals/zlib/contrib/optimizations/chunkcopy.h", |
| "externals/zlib/contrib/optimizations/inffast_chunk.h", |
| "externals/zlib/contrib/optimizations/inffast_chunk.c", |
| "externals/zlib/contrib/optimizations/inflate.c", |
| "externals/zlib/crc32_simd.h", |
| "externals/zlib/crc32_simd.c", |
| "externals/zlib/crc_folding.c", |
| "externals/zlib/fill_window_sse.c", |
| ], |
| "@platforms//cpu:arm": [ |
| "externals/zlib/adler32_simd.h", |
| "externals/zlib/adler32_simd.c", |
| "externals/zlib/contrib/optimizations/chunkcopy.h", |
| "externals/zlib/contrib/optimizations/inffast_chunk.h", |
| "externals/zlib/contrib/optimizations/inffast_chunk.c", |
| "externals/zlib/contrib/optimizations/inflate.c", |
| "externals/zlib/crc32_simd.h", |
| "externals/zlib/crc32_simd.c", |
| ], |
| # No SIMD support in wasm for now |
| "//bazel/common_config_settings:cpu_wasm": ["externals/zlib/inflate.c"], |
| # The default is to avoid using SIMD |
| "//conditions:default": ["externals/zlib/inflate.c"], |
| }) |
| |
| ZLIB_DEFINES = ["ZLIB_IMPLEMENTATION"] + select({ |
| "@platforms//cpu:x86_64": [ |
| "ADLER32_SIMD_SSSE3", |
| "CRC32_SIMD_SSE42_PCLMUL", |
| "INFLATE_CHUNK_READ_64LE", |
| "INFLATE_CHUNK_SIMD_SSE2", |
| "DEFLATE_FILL_WINDOW_SSE2", |
| ], |
| "@platforms//cpu:arm": [ |
| "ADLER32_SIMD_NEON", |
| "INFLATE_CHUNK_SIMD_NEON", |
| ], |
| "//bazel/common_config_settings:cpu_wasm": ["CPU_NO_SIMD"], |
| "//conditions:default": ["CPU_NO_SIMD"], |
| }) + select({ |
| "//bazel/common_config_settings:windows_x64": ["X86_WINDOWS"], |
| "//bazel/common_config_settings:linux_x64": ["X86_NOT_WINDOWS"], |
| "//bazel/common_config_settings:fuchsia_arm64": [ |
| "X86_NOT_WINDOWS", |
| "ARMV8_OS_FUCHSIA", |
| ], |
| # TODO(kjlubick) other arm flavors |
| "//conditions:default": ["X86_NOT_WINDOWS"], |
| }) |
| |
| ZLIB_COPTS = [ |
| "-Wno-unused-function", |
| # Make the headers in contrib available, without exposing them in hdrs. |
| "-isystem third_party/externals/zlib/", |
| ] + select({ |
| "//bazel/common_config_settings:linux_x64": [ |
| "-mssse3", |
| "-msse4.2", |
| "-mpclmul", |
| ], |
| "@platforms//cpu:arm": ["-march=armv8-a+crc"], |
| # If empty list isn't set for wasm, select picks linux_x64 |
| "//bazel/common_config_settings:cpu_wasm": [], |
| "//conditions:default": [], |
| }) |
| |
| cc_library( |
| name = "zlib", |
| srcs = ZLIB_SRCS, |
| hdrs = [ |
| "externals/zlib/chromeconf.h", |
| "externals/zlib/zconf.h", |
| "externals/zlib/zlib.h", |
| ], |
| copts = ZLIB_COPTS, |
| local_defines = ZLIB_DEFINES, |
| # This allows users of zlib to just do #include "zlib.h" |
| strip_include_prefix = "externals/zlib/", |
| ) |
| |
| # This library is used to fix linking errors when trying to statically link in some symbols |
| # The symbols defined here: |
| # https://github.com/llvm/llvm-project/blob/main/libcxx/include/__support/musl/xlocale.h |
| # are defined to be inlined, however they are missing during the final linking of a static |
| # executable. By re-defining them in our own .a file, this makes the linker happy. |
| cc_library( |
| name = "musl_compat", |
| srcs = [ |
| "musl_compat/locale.c", |
| ], |
| ) |
