skia2/gn/skia.gni
Hal Canary 2dad99092c Replace third_party/gif: Preflight changes
Something is breaking client code in unexpected ways.  Let's try this
piecemeal.

  - skia_libgifcodec_path gn var. Default is
    third_party/externals/libgifcodec.  Anfroid framework uses
    third_party/libgifcodec.

  - skia_use_libgifcodec gn var; defaults to !skia_use_wuffs.  Allow
    disabling both codecs.

  - GN template("optional"): add public_include_dirs, similar to
    public_defines.

  - SK_USE_LIBGIFCODEC, ifdef for skia_use_libgifcodec.

  - SkCodec.cpp: use SK_USE_LIBGIFCODEC

Original CL:  https://review.skia.org/254582

Cq-Include-Trybots: luci.skia.skia.primary:Build-Debian9-Clang-x86-devrel-Android_SKQP
Bug: skia:9654
Change-Id: I70561f5f945656065e4b318d5fff505961fb0b6b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/255578
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
2019-11-21 15:19:41 +00:00

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# Copyright 2019 Google LLC.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
if (!defined(is_skia_standalone)) {
is_skia_standalone = false
}
is_skia_dev_build = is_skia_standalone && !is_official_build
declare_args() {
skia_android_serial = ""
skia_compile_processors = false
skia_enable_ccpr = true
skia_enable_discrete_gpu = true
skia_enable_flutter_defines = false
skia_enable_fontmgr_empty = false
skia_enable_fontmgr_fuchsia = is_fuchsia
skia_enable_fontmgr_win = is_win
skia_enable_fontmgr_win_gdi = is_win
skia_enable_gpu = true
skia_enable_pdf = true
skia_enable_sksl_interpreter = is_skia_dev_build
skia_enable_skvm_jit =
is_skia_dev_build && ((target_cpu == "x64" && (is_linux || is_mac)) ||
(target_cpu == "arm64" && is_android))
skia_enable_tools = is_skia_dev_build
skia_enable_vulkan_debug_layers = is_skia_dev_build && is_debug
skia_generate_workarounds = false
skia_include_multiframe_procs = false
skia_lex = false
skia_libgifcodec_path = "third_party/externals/libgifcodec"
skia_pdf_subset_harfbuzz = false # TODO: set skia_pdf_subset_harfbuzz to skia_use_harfbuzz.
skia_qt_path = getenv("QT_PATH")
skia_skqp_global_error_tolerance = 0
skia_tools_require_resources = false
skia_update_fuchsia_sdk = false
skia_use_angle = false
skia_use_dawn = false
skia_use_egl = false
skia_use_expat = true
skia_use_experimental_xform = false
skia_use_ffmpeg = false
skia_use_fixed_gamma_text = is_android
skia_use_fontconfig = is_linux
skia_use_fonthost_mac = is_mac
skia_use_freetype = is_android || is_fuchsia || is_linux
skia_use_harfbuzz = true
skia_use_gl = !is_fuchsia
skia_use_icu = !is_fuchsia && !is_ios
skia_use_libheif = is_skia_dev_build
skia_use_libjpeg_turbo = true
skia_use_libpng = true
skia_use_libwebp = !is_fuchsia
skia_use_lua = is_skia_dev_build && !is_ios
skia_use_metal = false
skia_use_opencl = false
skia_use_piex = !is_win
skia_use_wuffs = false
skia_use_x11 = is_linux
skia_use_xps = true
skia_use_zlib = true
skia_vtune_path = ""
if (is_ios) {
skia_ios_identity = ".*Google.*"
skia_ios_profile = "Google Development"
}
if (is_mac) {
skia_gl_standard = "gl"
} else if (is_ios) {
skia_gl_standard = "gles"
} else {
skia_gl_standard = ""
}
if (is_android) {
skia_use_vulkan = defined(ndk_api) && ndk_api >= 24
} else if (is_fuchsia) {
skia_use_vulkan = true
} else {
skia_use_vulkan = defined(skia_moltenvk_path) && skia_moltenvk_path != ""
}
}
declare_args() {
skia_enable_atlas_text = is_skia_dev_build && skia_enable_gpu
skia_enable_fontmgr_android = skia_use_expat && skia_use_freetype
skia_enable_fontmgr_custom =
is_linux && skia_use_freetype && !skia_use_fontconfig
skia_enable_fontmgr_custom_empty = is_fuchsia && skia_use_freetype
skia_enable_nvpr = !skia_enable_flutter_defines
skia_enable_spirv_validation = is_skia_dev_build && is_debug && !skia_use_dawn
skia_use_dng_sdk = !is_fuchsia && skia_use_libjpeg_turbo && skia_use_zlib
skia_use_libgifcodec = !skia_use_wuffs
skia_use_sfntly = skia_use_icu
}
# Our tools require static linking (they use non-exported symbols), and the GPU backend.
skia_enable_tools = skia_enable_tools && !is_component_build && skia_enable_gpu