1# Copyright 2012 The Android Open Source Project 2# 3# Use of this source code is governed by a BSD-style license that can be 4# found in the LICENSE file. 5 6{ 7 # Get ready for the ugly... 8 # 9 # - We have to nest our variables dictionaries multiple levels deep, so that 10 # this and other gyp files can rely on previously-set variable values in 11 # their 'variables': { 'conditions': [] } clauses. 12 # 13 # Example 1: 14 # Within this file, we use the value of variable 'skia_os' to set the 15 # value of variable 'os_posix', so 'skia_os' must be defined within a 16 # "more inner" (enclosed) scope than 'os_posix'. 17 # 18 # Example 2: 19 # http://src.chromium.org/viewvc/chrome/trunk/src/third_party/libjpeg/libjpeg.gyp?revision=102306 , 20 # which we currently import into our build, uses the value of 'os_posix' 21 # within the 'conditions' list in its 'variables' dict. 22 # In order for that to work, it needs the value of 'os_posix' to have been 23 # set within a "more inner" (enclosed) scope than its own 'variables' dict. 24 # 25 # - On the other hand, key/value pairs of a given 'variable' dict are only 26 # inherited by: 27 # 1. directly enclosing 'variable' dicts, and 28 # 2. "sibling" 'variable' dicts (which, I guess, are combined into a single 29 # 'variable' dict during gyp processing) 30 # and NOT inherited by "uncles" (siblings of directly enclosing 'variable' 31 # dicts), so we have to re-define every variable at every enclosure level 32 # within our ridiculous matryoshka doll of 'variable' dicts. That's why 33 # we have variable definitions like this: 'skia_os%': '<(skia_os)', 34 # 35 # See http://src.chromium.org/viewvc/chrome/trunk/src/build/common.gypi?revision=127004 , 36 # which deals with these same constraints in a similar manner. 37 # 38 'variables': { # level 1 39 'variables': { # level 2 40 41 # Variables needed by conditions list within the level-2 variables dict. 42 'variables': { # level 3 43 # We use 'skia_os' instead of 'OS' throughout our gyp files, to allow 44 # for cross-compilation (e.g. building for either MacOS or iOS on Mac). 45 # We set it automatically based on 'OS' (the host OS), but allow the 46 # user to override it via GYP_DEFINES if they like. 47 'skia_os%': '<(OS)', 48 }, 49 50 # Re-define all variables defined within the level-3 'variables' dict, 51 # so that siblings of the level-2 'variables' dict can see them. 52 'skia_os%': '<(skia_os)', 53 54 'conditions': [ 55 [ 'skia_os == "win"', { 56 'os_posix%': 0, 57 }, { 58 'os_posix%': 1, 59 }], 60 [ 'skia_os in ["linux", "freebsd", "openbsd", "solaris"]', { 61 'skia_arch_width%': 64, 62 }, { 63 'skia_arch_width%': 32, 64 }], 65 [ 'skia_os == "android"', { 66 'skia_static_initializers%': 0, 67 }, { 68 'skia_static_initializers%': 1, 69 }], 70 [ 'skia_os == "ios"', { 71 'skia_arch_type%': 'arm', 72 'armv7%': 1, 73 'arm_neon%': 0, # neon asm files known not to work with the ios build 74 },{ # skia_os is not ios 75 'skia_arch_type%': 'x86', 76 'armv7%': 0, 77 'arm_neon%': 0, 78 }], 79 ], 80 81 'skia_scalar%': 'float', 82 'skia_mesa%': 0, 83 'skia_nv_path_rendering%': 0, 84 'skia_stroke_path_rendering%': 0, 85 'skia_android_path_rendering%': 0, 86 'skia_texture_cache_mb_limit%': 0, 87 'skia_angle%': 0, 88 'skia_directwrite%': 0, 89 'skia_gpu%': 1, 90 'skia_osx_sdkroot%': 'macosx', 91 'skia_profile_enabled%': 0, 92 # Note: This is currently only turned on for linux and android. 93 # TODO: Turn on for Win and Mac as well. 94 'skia_warnings_as_errors%': 0, 95 }, 96 97 # Re-define all variables defined within the level-2 'variables' dict, 98 # so that siblings of the level-1 'variables' dict can see them. 99 'armv7%': '<(armv7)', 100 'arm_neon%': '<(arm_neon)', 101 'skia_os%': '<(skia_os)', 102 'os_posix%': '<(os_posix)', 103 'skia_scalar%': '<(skia_scalar)', 104 'skia_mesa%': '<(skia_mesa)', 105 'skia_nv_path_rendering%': '<(skia_nv_path_rendering)', 106 'skia_stroke_path_rendering%': '<(skia_stroke_path_rendering)', 107 'skia_android_path_rendering%': '<(skia_android_path_rendering)', 108 'skia_texture_cache_mb_limit%': '<(skia_texture_cache_mb_limit)', 109 'skia_angle%': '<(skia_angle)', 110 'skia_arch_width%': '<(skia_arch_width)', 111 'skia_arch_type%': '<(skia_arch_type)', 112 'skia_directwrite%': '<(skia_directwrite)', 113 'skia_gpu%': '<(skia_gpu)', 114 'skia_osx_sdkroot%': '<(skia_osx_sdkroot)', 115 'skia_profile_enabled%': '<(skia_profile_enabled)', 116 'skia_warnings_as_errors%': '<(skia_warnings_as_errors)', 117 'skia_static_initializers%': '<(skia_static_initializers)', 118 'ios_sdk_version%': '6.0', 119 120 # These are referenced by our .gypi files that list files (e.g. core.gypi) 121 # 122 'skia_src_path%': '../src', 123 'skia_include_path%': '../include', 124 }, 125} 126# Local Variables: 127# tab-width:2 128# indent-tabs-mode:nil 129# End: 130# vim: set expandtab tabstop=2 shiftwidth=2: 131