blob: caa1d12702d4146f62517d3083474802799453dc [file] [log] [blame]
# Copyright 2014 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import("//build/config/chromecast_build.gni")
import("//build/config/arm.gni")
import("//build/config/mips.gni")
import("//testing/libfuzzer/fuzzer_test.gni")
config("libpng_config") {
include_dirs = [ "." ]
defines = []
if (is_win) {
if (is_component_build) {
defines += [
"PNG_USE_DLL",
"PNG_NO_MODULEDEF",
]
}
}
}
# Must be in a config because of how GN orders flags (otherwise -Wall will
# appear after this, and turn it back on).
config("clang_warnings") {
if (is_clang) {
cflags = [
# libpng checks that the width is not greater than PNG_SIZE_MAX.
# On platforms where size_t is 64-bits, this comparison will always
# be false.
"-Wno-tautological-constant-out-of-range-compare",
]
}
}
# Cannot be a static_library in component builds
source_set("libpng_sources") {
sources = [
"png.c",
"png.h",
"pngconf.h",
"pngdebug.h",
"pngerror.c",
"pngget.c",
"pnginfo.h",
"pnglibconf.h",
"pngmem.c",
"pngpread.c",
"pngprefix.h",
"pngpriv.h",
"pngread.c",
"pngrio.c",
"pngrtran.c",
"pngrutil.c",
"pngset.c",
"pngstruct.h",
"pngtrans.c",
"pngwio.c",
"pngwrite.c",
"pngwtran.c",
"pngwutil.c",
]
defines = [ "PNG_SET_OPTION_SUPPORTED" ]
cflags = []
if (current_cpu == "x86" || current_cpu == "x64") {
sources += [
"intel/filter_sse2_intrinsics.c",
"intel/intel_init.c",
]
defines += [ "PNG_INTEL_SSE_OPT=1" ]
} else if ((current_cpu == "arm" || current_cpu == "arm64") && arm_use_neon) {
sources += [
"arm/arm_init.c",
"arm/filter_neon_intrinsics.c",
"arm/palette_neon_intrinsics.c",
]
defines += [
"PNG_ARM_NEON_OPT=2",
"PNG_ARM_NEON_IMPLEMENTATION=1",
]
} else if (current_cpu == "mips64el" && mips_use_msa) {
sources += [
"mips/filter_msa_intrinsics.c",
"mips/mips_init.c",
]
}
configs -= [ "//build/config/compiler:chromium_code" ]
configs += [ "//build/config/compiler:no_chromium_code" ]
if (is_win) {
# Unary minus applied to unsigned type.
cflags += [ "/wd4146" ]
}
if (is_win && is_component_build) {
defines += [ "PNG_BUILD_DLL" ]
}
public_configs = [ ":libpng_config" ]
public_deps = [
"//third_party/zlib",
]
configs += [ ":clang_warnings" ]
}
if (is_win) {
component("libpng") {
public_deps = [
":libpng_sources",
]
}
} else {
group("libpng") {
public_deps = [
":libpng_sources",
]
}
}
libpng_ossfuzz_seed_corpuses = [
"//components/viz/test/data",
"//third_party/blink/web_tests/images/png-suite/samples",
"//third_party/blink/web_tests/images/resources/pngfuzz",
]
fuzzer_test("libpng_read_fuzzer") {
sources = [
"contrib/oss-fuzz/libpng_read_fuzzer.cc",
]
deps = [
":libpng",
]
dict = "contrib/oss-fuzz/png.dict"
seed_corpuses = libpng_ossfuzz_seed_corpuses
}