# Copyright 2017 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

{
  'variables': {
    'target_arch': 'arm',
    'target_os': 'linux',

    'in_app_dial%': 0,
    'sysroot%': '/',
    'gl_type': 'system_gles2',
    'image_cache_size_in_bytes': 32 * 1024 * 1024,

    # VideoCore's tiled renderer will do a render for every tile of a render
    # target even if only part of that target was rendered to.  Since the
    # scratch surface cache is designed to choose large offscreen surfaces so
    # that they can be maximally reused, it is not a very good fit for a tiled
    # renderer.
    'scratch_surface_cache_size_in_bytes' : 0,

    # This should have a default value in cobalt/base.gypi. See the comment
    # there for acceptable values for this variable.
    'javascript_engine': 'mozjs',
    'cobalt_enable_jit': 0,

    # RasPi 2 is ARMv7
    'arm_version': 7,
    'armv7': 1,
    'arm_neon': 0, # Disable neon until it shows measurable
                   # benefit under cobalt benchmarks.
    'arm_float_abi': 'hard',

    # Define platform specific compiler and linker flags.
    # Refer to base.gypi for a list of all available variables.
    'compiler_flags_host': [
      '-O2',
    ],
    'compiler_flags': [
      # We'll pretend not to be Linux, but Starboard instead.
      '-U__linux__',

      # Force char to be signed.
      '-fsigned-char',

      # Suppress some warnings that will be hard to fix.
      '-Wno-unused-local-typedefs',
      '-Wno-unused-result',
      '-Wno-deprecated-declarations',
      '-Wno-missing-field-initializers',
      '-Wno-comment',  # Talk to my lawyer.
      '-Wno-narrowing',
      '-Wno-unknown-pragmas',
      '-Wno-type-limits',  # TODO: We should actually look into these.

      # Specify the sysroot with all your include dependencies.
      '--sysroot=<(sysroot)',

      # Optimize for Raspberry Pi 2 chips.
      '-march=armv7-a',
      '-mtune=cortex-a8',
      '-mfloat-abi=hard',
      #'-mfpu=neon-vfpv4',  # Disable neon until it shows measurable
                            # benefit under cobalt benchmarks.

      # This is a quirk of Raspbian, these are required to include any
      # GL-related headers.
      '-I<(sysroot)/usr/local/include',
      '-I<(sysroot)/opt/vc/include',
      '-I<(sysroot)/opt/vc/include/interface/vcos/pthreads',
      '-I<(sysroot)/opt/vc/include/interface/vmcs_host/linux',
    ],
    'linker_flags': [
      '--sysroot=<(sysroot)',
      # This is a quirk of Raspbian, these are required to link any GL-related
      # libraries.
      '-L<(sysroot)/opt/vc/lib',
      '-Wl,-rpath=<(sysroot)/opt/vc/lib',

      # We don't wrap these symbols, but this ensures that they aren't
      # linked in.
      '-Wl,--wrap=malloc',
      '-Wl,--wrap=calloc',
      '-Wl,--wrap=realloc',
      '-Wl,--wrap=memalign',
      '-Wl,--wrap=reallocalign',
      '-Wl,--wrap=free',
      '-Wl,--wrap=strdup',
      '-Wl,--wrap=malloc_usable_size',
      '-Wl,--wrap=malloc_stats_fast',
      '-Wl,--wrap=__cxa_demangle',
    ],
    'compiler_flags_debug': [
      '-O0',
    ],
    'compiler_flags_cc_debug': [
      '-frtti',
    ],
    'compiler_flags_devel': [
      '-O2',
    ],
    'compiler_flags_cc_devel': [
      '-frtti',
    ],
    'compiler_flags_qa': [
      '-O2',
    ],
    'compiler_flags_cc_qa': [
      '-fno-rtti',
    ],
    'compiler_flags_gold': [
      '-O2',
    ],
    'compiler_flags_cc_gold': [
      '-fno-rtti',
    ],
    'platform_libraries': [
      '-lasound',
      '-lavcodec',
      '-lavformat',
      '-lavresample',
      '-lavutil',
      '-lEGL',
      '-lGLESv2',
      '-lpthread',
      '-lpulse',
      '-lrt',
      '-lopenmaxil',
      '-lbcm_host',
      '-lvcos',
      '-lvchiq_arm',
    ],
    'conditions': [
      ['cobalt_fastbuild==0', {
        'compiler_flags_debug': [
          '-g',
        ],
        'compiler_flags_devel': [
          '-g',
        ],
        'compiler_flags_qa': [
        ],
        'compiler_flags_gold': [
        ],
      }],
    ],
  },

  'target_defaults': {
    'defines': [
      # Cobalt on Linux flag
      'COBALT_LINUX',
      '__STDC_FORMAT_MACROS', # so that we get PRI*
      # Enable GNU extensions to get prototypes like ffsl.
      '_GNU_SOURCE=1',
    ],
    'cflags_c': [
      '-std=c11',
    ],
    'cflags_cc': [
      '-std=gnu++11',
      '-Wno-literal-suffix',
    ],
    'default_configuration': 'raspi-2_debug',
    'configurations': {
      'raspi-2_debug': {
        'inherit_from': ['debug_base'],
      },
      'raspi-2_devel': {
        'inherit_from': ['devel_base'],
      },
      'raspi-2_qa': {
        'inherit_from': ['qa_base'],
      },
      'raspi-2_gold': {
        'inherit_from': ['gold_base'],
      },
    }, # end of configurations
    'target_conditions': [
      ['cobalt_code==1', {
        'cflags': [
          '-Wall',
          '-Wextra',
          '-Wunreachable-code',
        ],
      },{
        'cflags': [
          # Do not warn about unused function params.
          '-Wno-unused-parameter',
          # Do not warn for implicit type conversions that may change a value.
          '-Wno-conversion',
        ],
      }],
    ],
  }, # end of target_defaults
}