# -*- Mode: python; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40 -*-
# vim: set filetype=python:
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.


# Profiling
# ==============================================================
# Some of the options here imply an option from js/moz.configure,
# so, need to be declared before the include.
option('--enable-systrace', env='MOZ_USE_SYSTRACE',
       help='Turn on systrace for the Gecko profiler on android/b2g')

@depends('--enable-systrace', target)
def systrace(value, target):
    if value and target.os != 'Android':
        error('--enable-systrace cannot be used when targetting %s'
              % target.os)
    if value:
        set_define('MOZ_USE_SYSTRACE', '1')


option('--enable-jprof', env='MOZ_JPROF',
       help='Enable jprof profiling tool (needs mozilla/tools/jprof)')

@depends('--enable-jprof')
def jprof(value):
    if value:
        set_config('MOZ_JPROF', '1')
        set_define('MOZ_JPROF', '1')
        imply_option('--enable-profiling')


@depends(target)
def sps_profiler(target):
    if target.os == 'Android':
        return target.cpu in ('arm', 'x86')
    elif target.kernel == 'Linux':
        return target.cpu in ('x86', 'x86_64')
    return target.os in ('OSX', 'WINNT')

@depends(sps_profiler)
def sps_profiler_define(value):
    if value:
        set_config('MOZ_ENABLE_PROFILER_SPS', '1')
        set_define('MOZ_ENABLE_PROFILER_SPS', '1')


option('--enable-dmd', env='MOZ_DMD',
       help='Enable Dark Matter Detector (heap profiler). '
            'Also enables jemalloc, replace-malloc and profiling')

@depends('--enable-dmd')
def dmd(value):
    if value:
        set_config('MOZ_DMD', '1')
        set_define('MOZ_DMD', '1')
        add_old_configure_assignment('MOZ_DMD', '1')
        imply_option('--enable-profiling')


# Javascript engine
# ==============================================================
include('../js/moz.configure')


# L10N
# ==============================================================
option('--with-l10n-base', nargs=1, env='L10NBASEDIR',
       help='Path to l10n repositories')

@depends('--with-l10n-base')
def l10n_base(value):
    if value:
        path = value[0]
        if not os.path.isdir(path):
            error("Invalid value --with-l10n-base, %s doesn't exist" % path)

        set_config('L10NBASEDIR', os.path.realpath(os.path.abspath(path)))


# Default toolkit
# ==============================================================
# Normally, we'd want to use the `default` field on the option, but that
# requires --target to be resolved at --help time, which requires to run
# config.guess, which we want to avoid. Even better, we could actually set
# `choices` depending on the target, but that doesn't pan out for the same
# reason.
option('--enable-default-toolkit', nargs=1,
       choices=('cairo-windows', 'cairo-gtk2', 'cairo-gtk2-x11', 'cairo-gtk3',
                'cairo-qt', 'cairo-cocoa', 'cairo-uikit', 'cairo-android',
                'cairo-gonk'),
       help='Select default toolkit')

@depends('--enable-default-toolkit', target, gonkdir)
def toolkit(value, target, gonkdir):
    # Define possible choices for each platform. The default is the first one
    # listed when there are several.
    os = target.os
    if target.os == 'WINNT':
        platform_choices = ('cairo-windows',)
    elif target.os == 'OSX':
        platform_choices = ('cairo-cocoa',)
    elif target.os == 'iOS':
        platform_choices = ('cairo-uikit',)
    elif target.os == 'Android':
        if gonkdir:
            platform_choices = ('cairo-gonk',)
            os = 'B2G'
        else:
            platform_choices = ('cairo-android',)
    else:
        platform_choices = ('cairo-gtk3', 'cairo-gtk2', 'cairo-gtk2-x11',
                            'cairo-qt')

    if value:
        if value[0] not in platform_choices:
            error(
                '`%s` is not a valid value for --enable-default-toolkit on %s\n'
                'Valid values: %s'
                % (value[0], os, ', '.join(platform_choices)))
        return value[0]

    return platform_choices[0]


@depends(toolkit)
def toolkit(toolkit):
    if toolkit == 'cairo-gtk2-x11':
        widget_toolkit = 'gtk2'
    else:
        widget_toolkit = toolkit.replace('cairo-', '')
    set_config('MOZ_WIDGET_TOOLKIT', widget_toolkit)
    add_old_configure_assignment('MOZ_WIDGET_TOOLKIT', widget_toolkit)

    if widget_toolkit == 'gtk2':
        set_define('MOZ_WIDGET_GTK', '2')
    elif widget_toolkit == 'gtk3':
        set_define('MOZ_WIDGET_GTK', '3')
    elif widget_toolkit != 'windows':
        set_define('MOZ_WIDGET_%s' % widget_toolkit.upper(), '1')

    return widget_toolkit


option('--without-x', env='WITHOUT_X', help='Disable X11 support')

@depends('--without-x', toolkit)
def x11(value, toolkit):
    if not value and toolkit != 'qt':
        error('--without-x is only valid with --enable-default-toolkit=qt')

    x11_toolkits = ('gtk2', 'gtk3', 'qt')
    if value and value.origin != 'default' and toolkit not in x11_toolkits:
        error('--with-x is only valid with --enable-default-toolkit={%s}'
              % ','.join(x11_toolkits))

    if value and toolkit in x11_toolkits:
        set_config('MOZ_ENABLE_XREMOTE', '1')
        set_define('MOZ_ENABLE_XREMOTE', '1')
        set_config('MOZ_X11', '1')
        set_define('MOZ_X11', '1')
        add_old_configure_assignment('MOZ_X11', '1')

    return value and toolkit in x11_toolkits


# GL Provider
# ==============================================================
option('--with-gl-provider', nargs=1, help='Set GL provider backend type')

@depends('--with-gl-provider', x11)
def gl_provider(value, x11):
    if value:
        provider = value[0]
        set_config('MOZ_GL_PROVIDER', provider)
        set_define('MOZ_GL_PROVIDER', 'GLContextProvider%s' % provider)
        set_config('MOZ_GL_DEFAULT_PROVIDER', provider)
        set_define('GL_PROVIDER_%s' % provider, '1')
    elif x11:
        set_config('MOZ_GL_DEFAULT_PROVIDER', 'GLX')
        set_define('GL_PROVIDER_GLX', '1')


# PDF printing
# ==============================================================
@depends(toolkit)
def pdf_printing(toolkit):
    if toolkit in ('windows', 'gtk2', 'gtk3', 'qt', 'android', 'gonk'):
        set_config('MOZ_PDF_PRINTING', '1')
        set_config('PDF_SURFACE_FEATURE', '#define CAIRO_HAS_PDF_SURFACE 1')
    else:
        # CONFIGURE_SUBST_FILES need explicit empty values.
        set_config('PDF_SURFACE_FEATURE', '')


# Event loop instrumentation
# ==============================================================
option(env='MOZ_INSTRUMENT_EVENT_LOOP',
       help='Force-enable event loop instrumentation')

@depends('MOZ_INSTRUMENT_EVENT_LOOP', toolkit)
def instrument_event_loop(value, toolkit):
    if value or (toolkit in ('windows', 'gtk2', 'gtk3', 'cocoa', 'android',
                             'gonk') and value.origin == 'default'):
        set_config('MOZ_INSTRUMENT_EVENT_LOOP', '1')
        set_define('MOZ_INSTRUMENT_EVENT_LOOP', '1')


# Fontconfig Freetype
# ==============================================================
option(env='USE_FC_FREETYPE',
       help='Force-enable the use of fontconfig freetype')

@depends('USE_FC_FREETYPE', toolkit)
def fc_freetype(value, toolkit):
    if value or (toolkit in ('gtk2', 'gtk3', 'qt') and
                 value.origin == 'default'):
        add_old_configure_assignment('USE_FC_FREETYPE', '1')


# Apple platform decoder support
# ==============================================================
@depends(toolkit)
def applemedia(toolkit):
    if toolkit in ('cocoa', 'uikit'):
        set_config('MOZ_APPLEMEDIA', '1')
        set_define('MOZ_APPLEMEDIA', '1')
        add_old_configure_assignment('MOZ_APPLEMEDIA', '1')
        return True
    return False


# Windows Media Foundation support
# ==============================================================
option('--disable-wmf',
       help='Disable support for Windows Media Foundation')

@depends('--disable-wmf', target)
def wmf(value, target):
    enabled = bool(value)
    if value.origin == 'default':
        # Enable Windows Media Foundation support by default.
        # Note our minimum SDK version is Windows 7 SDK, so we are (currently)
        # guaranteed to have a recent-enough SDK to build WMF.
        enabled = target.os == 'WINNT'
    if enabled and target.os != 'WINNT':
        error('Cannot enable Windows Media Foundation support on %s'
              % target.os)
    if enabled:
        set_config('MOZ_WMF', '1')
        set_define('MOZ_WMF', '1')
    return enabled


# FFmpeg H264/AAC Decoding Support
# ==============================================================
option('--disable-ffmpeg',
       help='Disable FFmpeg for fragmented H264/AAC decoding')

@depends('--disable-ffmpeg', target)
def ffmpeg(value, target):
    enabled = bool(value)
    if value.origin == 'default':
        enabled = target.os not in ('Android', 'WINNT')
    if enabled:
        set_define('MOZ_FFMPEG', '1')
        set_config('MOZ_FFMPEG', '1')
        imply_option('--enable-fmp4', '--enable-ffmpeg')
    return enabled


# Built-in fragmented MP4 support.
# ==============================================================
option('--disable-fmp4', env='MOZ_FMP4',
       help='Disable support for in built Fragmented MP4 parsing')

@depends('--disable-fmp4', target, wmf, applemedia)
def fmp4(value, target, wmf, applemedia):
    enabled = bool(value)
    if value.origin == 'default':
        # target.os == 'Android' includes all B2G versions
        enabled = wmf or applemedia or target.os == 'Android'
    if enabled:
        set_config('MOZ_FMP4', '1')
        set_define('MOZ_FMP4', '1')
        add_old_configure_assignment('MOZ_FMP4', '1')
    return enabled


# EME Support
# ==============================================================
option('--enable-eme', nargs='*', choices=('adobe',),
       help='Enable support for Encrypted Media Extensions')

@depends('--enable-eme', fmp4)
def eme(value, fmp4):
    enabled = bool(value)
    if value.origin == 'default':
        enabled = enabled or fmp4
    if enabled and not fmp4:
        error('Encrypted Media Extension support requires '
              'Fragmented MP4 support')
    if enabled:
        set_config('MOZ_EME', '1')
        set_define('MOZ_EME', '1')
    # Theoretically, we could pass `value` directly when it is a
    # PositiveOptionValue, but somehow, the JSON serialization in configure.py
    # outputs inconsistent data in some cases when we do (a closing bracket
    # without an opening one).
    set_config('MOZ_EME_MODULES', list(value) if value else [])
    return enabled