152 lines
5.1 KiB
Text
152 lines
5.1 KiB
Text
# Copyright 2020 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("//chromium/build/config/chromecast_build.gni")
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import("//chromium/build/config/chromeos/ui_mode.gni")
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import("//chromium/build/toolchain/toolchain.gni")
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declare_args() {
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# Indicates if Ozone is enabled. Ozone is a low-level library layer for Linux
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# that does not require X11.
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use_ozone =
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is_chromeos || (is_chromecast && !is_android) || is_fuchsia || is_linux || is_bsd
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}
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declare_args() {
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# Ozone extra platforms file path. Can be overridden to build out of
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# tree ozone platforms.
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ozone_extra_path = "//chromium/build/config/ozone_extra.gni"
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# Select platforms automatically. Turn this off for manual control.
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ozone_auto_platforms = use_ozone
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# TODO(petermcneeley): Backwards compatiblity support for VM images.
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# Remove when deprecated. (https://crbug.com/1122009)
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ozone_platform_gbm = -1
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# Enable explicit apitrace (https://apitrace.github.io) loading.
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# This requires apitrace library with additional bindings.
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# See ChromeOS package for details:
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# https://chromium-review.googlesource.com/c/chromiumos/overlays/chromiumos-overlay/+/2659419
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# Chrome will not start without an apitrace.so library.
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# Trace will be saved to /tmp/gltrace.dat file by default. You can
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# override it at run time with TRACE_FILE=<path> environment variable.
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enable_opengl_apitrace = false
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}
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declare_args() {
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# The platform that will used at runtime by default. This can be overridden
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# with the command line flag --ozone-platform=<platform>.
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ozone_platform = ""
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# Compile the 'cast' platform.
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ozone_platform_cast = false
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# Compile the 'drm' platform.
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ozone_platform_drm = false
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# Compile the 'headless' platform.
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ozone_platform_headless = false
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# Compile the 'scenic' platform.
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ozone_platform_scenic = false
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# Compile the 'flatland' platform.
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ozone_platform_flatland = false
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# Compile the 'x11' platform.
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ozone_platform_x11 = false
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# Compile the 'wayland' platform.
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ozone_platform_wayland = false
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# Compile the 'windows' platform.
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ozone_platform_windows = false
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if (ozone_auto_platforms) {
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# Use headless as the default platform unless modified below.
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ozone_platform = "headless"
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ozone_platform_headless = true
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if (is_cast_audio_only) {
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# Just use headless for audio-only Cast platforms.
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} else if (is_chromecast && !is_fuchsia) {
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# Enable the Cast ozone platform on all A/V Cast builds except Fuchsia.
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ozone_platform_cast = true
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# For visual desktop Chromecast builds, override the default "headless"
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# platform with --ozone-platform=x11.
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# TODO(halliwell): Create a libcast_graphics implementation for desktop
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# using X11, and disable this platform.
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if (is_cast_desktop_build && !is_cast_audio_only) {
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ozone_platform_x11 = true
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} else {
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ozone_platform = "cast"
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}
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} else if (is_chromeos_ash) {
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ozone_platform = "x11"
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ozone_platform_drm = true
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ozone_platform_x11 = true
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} else if (is_chromeos_lacros) {
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ozone_platform = "wayland"
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ozone_platform_wayland = true
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} else if (is_linux || is_bsd) {
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ozone_platform = "x11"
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ozone_platform_wayland = true
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ozone_platform_x11 = true
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} else if (is_win) {
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ozone_platform = "windows"
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ozone_platform_windows = true
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} else if (is_fuchsia) {
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ozone_platform = "scenic"
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ozone_platform_scenic = true
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ozone_platform_flatland = true
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}
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}
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# TODO(petermcneeley): Backwards compatiblity support for VM images.
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# Remove when deprecated. (https://crbug.com/1122009)
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if (ozone_platform_gbm != -1) {
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ozone_platform_drm = ozone_platform_gbm
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}
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}
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declare_args() {
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# Deprecated. Ozone/X11 is default path on Linux now. However, there are still
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# some components like remoting, angle, webrtc (desktop capture) that relies
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# on this gn arg and on the USE_X11 define. This will be gradually removed
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# once all the other places are fixed.
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# TODO(1096425): remove use_x11.
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use_x11 =
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ozone_platform_x11 && (is_linux || is_bsd) && !is_chromecast && !is_chromeos_lacros
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}
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import(ozone_extra_path)
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_ozone_extra_directory = get_path_info(ozone_extra_path, "dir")
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# Extra paths to add to targets visibility list.
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ozone_external_platform_visibility = [ "$_ozone_extra_directory/*" ]
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if (is_a_target_toolchain) {
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assert(
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use_ozone || !(ozone_platform_cast || ozone_platform_drm ||
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ozone_platform_flatland || ozone_platform_headless ||
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ozone_platform_x11 || ozone_platform_wayland ||
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ozone_platform_windows || ozone_platform_scenic),
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"Must set use_ozone to select ozone platforms")
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}
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# TODO(petermcneeley): Backwards compatiblity support for VM images.
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# Remove when deprecated. (https://crbug.com/1122009)
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assert(ozone_platform_gbm == -1 || ozone_platform_drm == ozone_platform_gbm)
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ozone_platform_gbm = ozone_platform_drm
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if (ozone_platform == "gbm") {
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ozone_platform = "drm"
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}
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assert(use_x11 == ozone_platform_x11 || !is_linux || !is_bsd || is_chromecast)
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