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