blob: ad07eee06753c721193fa459a3e49692dfb99d36 [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/arm.gni")
import("//build/config/android/config.gni")
import("//build/config/sanitizers/sanitizers.gni")
import("//third_party/libvpx/libvpx_srcs.gni")
import("//third_party/yasm/yasm_assemble.gni")
# Sets the architecture name for building libvpx.
if (current_cpu == "x86") {
cpu_arch_full = "ia32"
} else if (current_cpu == "x64") {
if (is_msan) {
cpu_arch_full = "generic"
} else {
cpu_arch_full = "x64"
}
} else if (current_cpu == "arm") {
if (arm_use_neon) {
cpu_arch_full = "arm-neon"
} else if (is_android) {
cpu_arch_full = "arm-neon-cpu-detect"
} else {
cpu_arch_full = "arm"
}
} else {
cpu_arch_full = current_cpu
}
if (is_nacl) {
platform_include_dir = "//third_party/libvpx/source/config/nacl"
} else {
# The mac configurations are currently a relic. They were useful when
# x86inc.asm did not work for MACH_O but now the build is identical to the
# linux config. iOS for arm on the other hand needs an apple-specific twist in
# vpx_config.asm
if (is_ios && current_cpu == "arm") {
os_category = current_os
} else if (is_posix) { # Should cover linux, mac, and the ios simulator.
os_category = "linux"
} else { # This should only match windows.
os_category = current_os
}
platform_include_dir =
"//third_party/libvpx/source/config/$os_category/$cpu_arch_full"
}
config("libvpx_config") {
include_dirs = [
"//third_party/libvpx/source/config",
platform_include_dir,
"//third_party/libvpx/source/libvpx",
"$root_gen_dir/third_party/libvpx", # Provides vpx_rtcd.h.
]
}
# gn orders flags on a target before flags from configs. The default config
# adds -Wall, and these flags have to be after -Wall -- so they need to come
# from a config and can't be on the target directly.
config("libvpx_warnings") {
if (is_clang) {
cflags = [
# libvpx heavily relies on implicit enum casting.
"-Wno-conversion",
# libvpx does `if ((a == b))` in some places.
"-Wno-parentheses-equality",
# libvpx has many static functions in header, which trigger this warning.
"-Wno-unused-function",
]
# Fixes a mac link error for vpx_scaled_2d:
# Undefined symbols for architecture x86_64:
# "_vpx_scaled_2d", referenced from:
# _vp9_scale_and_extend_frame_c in libvpx.a(vp9_frame_scale.o)
# (maybe you meant: _vpx_scaled_2d_ssse3)
# ld: symbol(s) not found for architecture x86_64
if (is_mac) {
cflags += [ "-fno-common" ]
}
} else if (!is_win) {
cflags = [
"-Wno-unused-function",
"-Wno-sign-compare",
]
}
}
# This config is applied to targets that depend on libvpx.
config("libvpx_external_config") {
include_dirs = [ "//third_party/libvpx/source/libvpx" ]
}
if (current_cpu == "x86" || (current_cpu == "x64" && !is_msan)) {
yasm_assemble("libvpx_yasm") {
if (current_cpu == "x86") {
sources = libvpx_srcs_x86_assembly
} else if (current_cpu == "x64") {
sources = libvpx_srcs_x86_64_assembly
}
defines = [ "CHROMIUM" ]
if (is_android) {
# On Android, define __ANDROID__ to use alternative standard library
# functions.
defines += [ "__ANDROID__" ]
}
include_dirs = [
platform_include_dir,
"//third_party/libvpx/source/config",
"//third_party/libvpx/source/libvpx",
target_gen_dir,
]
}
}
if (current_cpu == "x86" || (current_cpu == "x64" && !is_msan)) {
# The following targets are deliberately source_set rather than
# static_library. The :libvpx target exposes these intrinsic implementations
# via global function pointer symbols, which hides the object dependency at
# link time. On Mac, this results in undefined references to the intrinsic
# symbols.
source_set("libvpx_intrinsics_mmx") {
configs += [ ":libvpx_config" ]
configs -= [ "//build/config/compiler:chromium_code" ]
configs += [ "//build/config/compiler:no_chromium_code" ]
configs += [ ":libvpx_warnings" ]
if (!is_win) {
cflags = [ "-mmmx" ]
}
if (current_cpu == "x86") {
sources = libvpx_srcs_x86_mmx
} else if (current_cpu == "x64") {
sources = libvpx_srcs_x86_64_mmx
}
}
source_set("libvpx_intrinsics_sse2") {
configs += [ ":libvpx_config" ]
configs -= [ "//build/config/compiler:chromium_code" ]
configs += [ "//build/config/compiler:no_chromium_code" ]
configs += [ ":libvpx_warnings" ]
if (!is_win || is_clang) {
cflags = [ "-msse2" ]
}
if (current_cpu == "x86") {
sources = libvpx_srcs_x86_sse2
} else if (current_cpu == "x64") {
sources = libvpx_srcs_x86_64_sse2
}
}
source_set("libvpx_intrinsics_ssse3") {
configs += [ ":libvpx_config" ]
configs -= [ "//build/config/compiler:chromium_code" ]
configs += [ "//build/config/compiler:no_chromium_code" ]
configs += [ ":libvpx_warnings" ]
if (!is_win || is_clang) {
cflags = [ "-mssse3" ]
}
if (current_cpu == "x86") {
sources = libvpx_srcs_x86_ssse3
} else if (current_cpu == "x64") {
sources = libvpx_srcs_x86_64_ssse3
}
}
source_set("libvpx_intrinsics_sse4_1") {
configs += [ ":libvpx_config" ]
configs -= [ "//build/config/compiler:chromium_code" ]
configs += [ "//build/config/compiler:no_chromium_code" ]
configs += [ ":libvpx_warnings" ]
if (!is_win || is_clang) {
cflags = [ "-msse4.1" ]
}
if (current_cpu == "x86") {
sources = libvpx_srcs_x86_sse4_1
} else if (current_cpu == "x64") {
sources = libvpx_srcs_x86_64_sse4_1
}
}
source_set("libvpx_intrinsics_avx") {
configs += [ ":libvpx_config" ]
configs -= [ "//build/config/compiler:chromium_code" ]
configs += [ "//build/config/compiler:no_chromium_code" ]
configs += [ ":libvpx_warnings" ]
if (is_win) {
cflags = [ "/arch:AVX" ]
} else {
cflags = [ "-mavx" ]
}
if (current_cpu == "x86") {
sources = libvpx_srcs_x86_avx
} else if (current_cpu == "x64") {
sources = libvpx_srcs_x86_64_avx
}
}
source_set("libvpx_intrinsics_avx2") {
configs += [ ":libvpx_config" ]
configs -= [ "//build/config/compiler:chromium_code" ]
configs += [ "//build/config/compiler:no_chromium_code" ]
configs += [ ":libvpx_warnings" ]
if (is_win) {
cflags = [ "/arch:AVX2" ]
} else {
cflags = [ "-mavx2" ]
}
if (current_cpu == "x86") {
sources = libvpx_srcs_x86_avx2
} else if (current_cpu == "x64") {
sources = libvpx_srcs_x86_64_avx2
}
}
}
if (cpu_arch_full == "arm-neon-cpu-detect") {
static_library("libvpx_intrinsics_neon") {
configs -= [ "//build/config/compiler:compiler_arm_fpu" ]
configs += [ ":libvpx_config" ]
configs += [ ":libvpx_warnings" ]
cflags = [ "-mfpu=neon" ]
sources = libvpx_srcs_arm_neon_cpu_detect_neon
}
}
if (current_cpu == "arm") {
if (cpu_arch_full == "arm-neon") {
arm_assembly_sources = libvpx_srcs_arm_neon_assembly
} else if (cpu_arch_full == "arm-neon-cpu-detect") {
arm_assembly_sources = libvpx_srcs_arm_neon_cpu_detect_assembly
} else {
arm_assembly_sources = libvpx_srcs_arm_assembly
}
}
# Converts ARM assembly files to GAS style.
if (current_cpu == "arm" && arm_assembly_sources != []) {
action_foreach("convert_arm_assembly") {
script = "//third_party/libvpx/run_perl.py"
sources = arm_assembly_sources
gen_file =
get_label_info("//third_party/libvpx/source/libvpx", "root_gen_dir") +
"/{{source_root_relative_dir}}/{{source_file_part}}.S"
outputs = [
gen_file,
]
if (is_ios) {
ads2gas_script =
"//third_party/libvpx/source/libvpx/build/make/ads2gas_apple.pl"
} else {
ads2gas_script =
"//third_party/libvpx/source/libvpx/build/make/ads2gas.pl"
}
args = [
"-s",
rebase_path(ads2gas_script, root_build_dir),
"-i",
"{{source}}",
"-o",
rebase_path(gen_file),
]
}
static_library("libvpx_assembly_arm") {
sources = get_target_outputs(":convert_arm_assembly")
configs -= [ "//build/config/compiler:compiler_arm_fpu" ]
configs += [ ":libvpx_config" ]
configs += [ ":libvpx_warnings" ]
if (cpu_arch_full == "arm-neon" || cpu_arch_full == "arm-neon-cpu-detect") {
asmflags = [ "-mfpu=neon" ]
# allow asm files to include generated sources which match the source
# tree layout, e.g., vpx_dsp/arm/...
include_dirs = [ get_label_info("//third_party/libvpx/source/libvpx",
"target_gen_dir") ]
}
deps = [
":convert_arm_assembly",
]
}
}
static_library("libvpx") {
if (!is_debug && is_win) {
configs -= [ "//build/config/compiler:default_optimization" ]
configs += [ "//build/config/compiler:optimize_max" ]
}
if (is_nacl) {
sources = libvpx_srcs_generic
} else if (current_cpu == "x86") {
sources = libvpx_srcs_x86
} else if (current_cpu == "x64") {
if (is_msan) {
sources = libvpx_srcs_generic
} else {
sources = libvpx_srcs_x86_64
}
} else if (current_cpu == "mipsel" || current_cpu == "mips64el") {
sources = libvpx_srcs_mips
} else if (current_cpu == "arm") {
if (arm_use_neon) {
sources = libvpx_srcs_arm_neon
} else if (is_android) {
sources = libvpx_srcs_arm_neon_cpu_detect
} else {
sources = libvpx_srcs_arm
}
} else if (current_cpu == "arm64") {
sources = libvpx_srcs_arm64
}
configs += [ ":libvpx_config" ]
configs -= [ "//build/config/compiler:chromium_code" ]
configs += [ "//build/config/compiler:no_chromium_code" ]
configs += [ ":libvpx_warnings" ]
deps = []
if (current_cpu == "x86" || (current_cpu == "x64" && !is_msan)) {
deps += [
":libvpx_intrinsics_avx",
":libvpx_intrinsics_avx2",
":libvpx_intrinsics_mmx",
":libvpx_intrinsics_sse2",
":libvpx_intrinsics_sse4_1",
":libvpx_intrinsics_ssse3",
":libvpx_yasm",
]
}
if (cpu_arch_full == "arm-neon-cpu-detect") {
deps += [ ":libvpx_intrinsics_neon" ]
}
if (is_android) {
deps += [ "//third_party/android_tools:cpu_features" ]
}
if (current_cpu == "arm" && arm_assembly_sources != []) {
deps += [ ":libvpx_assembly_arm" ]
}
public_configs = [ ":libvpx_external_config" ]
}