skia2/BUILD.gn
mtklein c095df55e8 GN: guard tools (except fiddle) by skia_enable_tools.
Our tools use third-party libraries pretty freely, some of which may not
be available in other GN environments (e.g. Fuchsia).  Most can also not
function when Skia is built as a shared library.

fiddle stands alone as the exception to both those points: it depends on
only Skia, and works fine with both a shared or static library.

So guard everything but fiddle with this flag skia_enable_tools, disabled
when we're building for Fuchsia or when we're build a shared library.

This CL has a couple of little tweaks to Fiddle to keep it working:
  - divorce it from :tool_utils, instead just building SkForceLinking.cpp itself;
  - fix up a buggy rebase_path() that was accidentally working when we depended
    on :tool_utils;
  - drop test_only: it now only requires production-code dependencies.

The SkImageEncoder Create* methods need to be SK_API if we want SkForceLinking
to work across .so's.  Without this, SkForceLinking needs to be part of Skia; it
can't be part of the application using Skia.

The rest is mostly just a re-indent under if (skia_enable_tools),
courtesy of gn format.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2273823003

No public API changes.
TBR=reed@google.com

Review-Url: https://codereview.chromium.org/2273823003
2016-08-24 12:23:52 -07:00

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# Copyright 2016 Google Inc.
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
declare_args() {
skia_enable_tools = !is_fuchsia && !is_component_build
skia_use_expat = true
skia_use_giflib = !is_fuchsia
skia_use_libjpeg_turbo = true
skia_use_libpng = true
skia_use_libwebp = !is_fuchsia
skia_use_sfntly = !is_fuchsia
skia_use_zlib = true
}
skia_public_includes = [
"include/android",
"include/c",
"include/codec",
"include/config",
"include/core",
"include/effects",
"include/gpu",
"include/gpu/gl",
"include/images",
"include/pathops",
"include/ports",
"include/svg",
"include/utils",
"include/utils/mac",
"include/xml",
]
# Skia public API, generally provided by :skia.
config("skia_public") {
include_dirs = skia_public_includes
defines = [ "SKIA_DLL" ]
}
# Skia internal APIs, used by Skia itself and a few test tools.
config("skia_private") {
visibility = [ ":*" ]
include_dirs = [
"include/private",
"src/c",
"src/codec",
"src/config",
"src/core",
"src/effects",
"src/effects/gradients",
"src/fonts",
"src/gpu",
"src/image",
"src/images",
"src/lazy",
"src/opts",
"src/pathops",
"src/pdf",
"src/ports",
"src/sfnt",
"src/utils",
"src/utils/win",
"third_party/etc1",
"third_party/ktx",
]
defines = [ "SK_GAMMA_APPLY_TO_A8" ]
if (is_linux) {
defines += [ "SK_SAMPLES_FOR_X" ]
}
}
# Any code that's linked into Skia-the-library should use this config via += skia_library_configs.
config("skia_library") {
visibility = [ ":*" ]
defines = [ "SKIA_IMPLEMENTATION=1" ]
}
skia_library_configs = [
":skia_public",
":skia_private",
":skia_library",
]
core_gypi = exec_script("gn/gypi_to_gn.py",
[
rebase_path("gyp/core.gypi"),
"--replace=<(skia_include_path)=include",
"--replace=<(skia_src_path)=src",
],
"scope",
[ "gyp/core.gypi" ])
effects_gypi = exec_script("gn/gypi_to_gn.py",
[
rebase_path("gyp/effects.gypi"),
"--replace=<(skia_include_path)=include",
"--replace=<(skia_src_path)=src",
],
"scope",
[ "gyp/effects.gypi" ])
gpu_gypi = exec_script("gn/gypi_to_gn.py",
[
rebase_path("gyp/gpu.gypi"),
"--replace=<(skia_include_path)=include",
"--replace=<(skia_src_path)=src",
],
"scope",
[ "gyp/gpu.gypi" ])
opts_gypi = exec_script("gn/gypi_to_gn.py",
[
rebase_path("gyp/opts.gypi"),
"--replace=<(skia_include_path)=include",
"--replace=<(skia_src_path)=src",
],
"scope",
[ "gyp/opts.gypi" ])
pdf_gypi = exec_script("gn/gypi_to_gn.py",
[
rebase_path("gyp/pdf.gypi"),
"--replace=<(skia_include_path)=include",
"--replace=<(skia_src_path)=src",
],
"scope",
[ "gyp/pdf.gypi" ])
utils_gypi = exec_script("gn/gypi_to_gn.py",
[
rebase_path("gyp/utils.gypi"),
"--replace=<(skia_include_path)=include",
"--replace=<(skia_src_path)=src",
],
"scope",
[ "gyp/utils.gypi" ])
source_set("opts_none") {
configs += skia_library_configs
sources = opts_gypi.none_sources
}
is_x86 = current_cpu == "x64" || current_cpu == "x86"
if (is_x86) {
source_set("opts_sse2") {
configs += skia_library_configs
sources = opts_gypi.sse2_sources
cflags = [ "-msse2" ]
}
source_set("opts_ssse3") {
configs += skia_library_configs
sources = opts_gypi.ssse3_sources
cflags = [ "-mssse3" ]
}
source_set("opts_sse41") {
configs += skia_library_configs
sources = opts_gypi.sse41_sources
cflags = [ "-msse4.1" ]
}
source_set("opts_sse42") {
configs += skia_library_configs
sources = opts_gypi.sse42_sources
cflags = [ "-msse4.2" ]
}
source_set("opts_avx") {
configs += skia_library_configs
sources = opts_gypi.avx_sources
cflags = [ "-mavx" ]
}
}
# Any feature of Skia that requires third-party code should be optional and use this template.
template("optional") {
if (invoker.enabled) {
config(target_name + "_public") {
defines = invoker.public_defines
}
source_set(target_name) {
forward_variables_from(invoker, "*", [ "public_defines" ])
all_dependent_configs = [ ":" + target_name + "_public" ]
}
} else {
# If not enabled, a phony empty target that swallows all otherwise unused variables.
source_set(target_name) {
forward_variables_from(invoker,
"*",
[
"public_defines",
"configs",
"deps",
"sources",
])
}
}
}
set_defaults("optional") {
configs = default_configs
}
optional("gif") {
enabled = skia_use_giflib
public_defines = [ "SK_HAS_GIF_LIBRARY" ]
configs += skia_library_configs
deps = [
"//third_party/giflib",
]
sources = [
"src/codec/SkGifCodec.cpp",
]
}
optional("jpeg") {
enabled = skia_use_libjpeg_turbo
public_defines = [ "SK_HAS_JPEG_LIBRARY" ]
configs += skia_library_configs
deps = [
"//third_party/libjpeg-turbo:libjpeg",
]
sources = [
"src/codec/SkJpegCodec.cpp",
"src/codec/SkJpegDecoderMgr.cpp",
"src/codec/SkJpegUtility.cpp",
"src/images/SkJPEGImageEncoder.cpp",
"src/images/SkJPEGWriteUtility.cpp",
]
}
optional("pdf") {
enabled = skia_use_zlib
public_defines = []
configs += skia_library_configs
deps = [
"//third_party/zlib",
]
sources = pdf_gypi.sources
if (skia_use_sfntly) {
deps += [ "//third_party/sfntly" ]
public_defines += [
# TODO(halcanary): make this the default; this is the value Android uses.
"SK_SFNTLY_SUBSETTER=\"sample/chromium/font_subsetter.h\"",
]
}
}
optional("png") {
enabled = skia_use_libpng
public_defines = [ "SK_HAS_PNG_LIBRARY" ]
configs += skia_library_configs
deps = [
"//third_party/libpng",
]
sources = [
"src/codec/SkIcoCodec.cpp",
"src/codec/SkPngCodec.cpp",
"src/images/SkPNGImageEncoder.cpp",
]
}
optional("webp") {
enabled = skia_use_libwebp
public_defines = [ "SK_HAS_WEBP_LIBRARY" ]
configs += skia_library_configs
deps = [
"//third_party/libwebp",
]
sources = [
"src/codec/SkWebpAdapterCodec.cpp",
"src/codec/SkWebpCodec.cpp",
"src/images/SkWEBPImageEncoder.cpp",
]
}
optional("xml") {
enabled = skia_use_expat
public_defines = []
configs += skia_library_configs
deps = [
"//third_party/expat",
]
sources = [
"src/xml/SkDOM.cpp",
"src/xml/SkXMLParser.cpp",
"src/xml/SkXMLWriter.cpp",
]
}
component("skia") {
public_configs = [ ":skia_public" ]
configs += skia_library_configs
deps = [
":gif",
":jpeg",
":pdf",
":png",
":webp",
":xml",
]
if (is_x86) {
deps += [
":opts_avx",
":opts_sse2",
":opts_sse41",
":opts_sse42",
":opts_ssse3",
]
} else {
deps += [ ":opts_none" ]
}
if (!is_win) {
libs = [ "pthread" ]
}
sources = []
sources += core_gypi.sources
sources += effects_gypi.sources
sources += gpu_gypi.skgpu_sources
sources += utils_gypi.sources
sources += [
"src/android/SkBitmapRegionCodec.cpp",
"src/android/SkBitmapRegionDecoder.cpp",
"src/codec/SkAndroidCodec.cpp",
"src/codec/SkBmpCodec.cpp",
"src/codec/SkBmpMaskCodec.cpp",
"src/codec/SkBmpRLECodec.cpp",
"src/codec/SkBmpStandardCodec.cpp",
"src/codec/SkCodec.cpp",
"src/codec/SkCodecImageGenerator.cpp",
"src/codec/SkMaskSwizzler.cpp",
"src/codec/SkMasks.cpp",
"src/codec/SkSampledCodec.cpp",
"src/codec/SkSampler.cpp",
"src/codec/SkSwizzler.cpp",
"src/codec/SkWbmpCodec.cpp",
"src/gpu/gl/GrGLDefaultInterface_native.cpp",
"src/images/SkImageEncoder.cpp",
"src/images/SkImageEncoder_Factory.cpp",
"src/images/SkKTXImageEncoder.cpp",
"src/ports/SkDiscardableMemory_none.cpp",
"src/ports/SkGlobalInitialization_default.cpp",
"src/ports/SkImageGenerator_skia.cpp",
"src/ports/SkMemory_malloc.cpp",
"src/ports/SkOSFile_stdio.cpp",
"src/sfnt/SkOTTable_name.cpp",
"src/sfnt/SkOTUtils.cpp",
"src/svg/SkSVGCanvas.cpp",
"src/svg/SkSVGDevice.cpp",
"src/utils/mac/SkStream_mac.cpp",
"third_party/etc1/etc1.cpp",
"third_party/ktx/ktx.cpp",
]
sources -= [
"src/gpu/gl/GrGLCreateNativeInterface_none.cpp",
"src/gpu/gl/GrGLDefaultInterface_none.cpp",
]
if (is_win) {
sources += [
"src/ports/SkDebug_win.cpp",
"src/ports/SkFontHost_win.cpp",
"src/ports/SkFontMgr_win_dw.cpp",
"src/ports/SkFontMgr_win_dw_factory.cpp",
"src/ports/SkImageEncoder_WIC.cpp",
"src/ports/SkImageGeneratorWIC.cpp",
"src/ports/SkOSFile_win.cpp",
"src/ports/SkScalerContext_win_dw.cpp",
"src/ports/SkTLS_win.cpp",
"src/ports/SkTypeface_win_dw.cpp",
"src/xps/SkDocument_XPS.cpp",
]
sources -= [ "src/utils/SkThreadUtils_pthread.cpp" ]
} else {
sources += [
"src/ports/SkDebug_stdio.cpp",
"src/ports/SkOSFile_posix.cpp",
"src/ports/SkTLS_pthread.cpp",
"src/xps/SkDocument_XPS_None.cpp",
]
}
if (is_linux) {
deps += [
"third_party:fontconfig",
"third_party:freetype2",
]
libs += [
"GL",
"GLU",
"X11",
]
sources += [
"src/gpu/gl/glx/GrGLCreateNativeInterface_glx.cpp",
"src/ports/SkFontConfigInterface_direct.cpp",
"src/ports/SkFontConfigInterface_direct_factory.cpp",
"src/ports/SkFontHost_FreeType.cpp",
"src/ports/SkFontHost_FreeType_common.cpp",
"src/ports/SkFontMgr_FontConfigInterface.cpp",
"src/ports/SkFontMgr_fontconfig.cpp",
"src/ports/SkFontMgr_fontconfig_factory.cpp",
]
}
if (is_mac) {
sources += [
"src/gpu/gl/mac/GrGLCreateNativeInterface_mac.cpp",
"src/ports/SkFontHost_mac.cpp",
"src/ports/SkImageEncoder_CG.cpp",
"src/ports/SkImageGeneratorCG.cpp",
]
libs += [
"ApplicationServices.framework",
"OpenGL.framework",
]
}
if (is_fuchsia) {
sources += [
"src/gpu/gl/GrGLCreateNativeInterface_none.cpp",
"src/ports/SkFontMgr_empty_factory.cpp",
]
}
}
skia_h_headers = exec_script("gyp/find.py",
[ "*.h" ] + rebase_path(skia_public_includes),
"list lines",
[]) -
[
rebase_path("include/gpu/gl/GrGLConfig_chrome.h"),
rebase_path("include/gpu/vk/GrVkBackendContext.h"),
rebase_path("include/gpu/vk/GrVkDefines.h"),
rebase_path("include/gpu/vk/GrVkInterface.h"),
rebase_path("include/gpu/vk/GrVkTypes.h"),
rebase_path("include/ports/SkFontMgr_fontconfig.h"),
]
action("skia.h") {
script = "gn/echo_headers.py"
args = [ rebase_path("$target_gen_dir/skia.h", root_build_dir) ] +
rebase_path(skia_h_headers, target_gen_dir)
outputs = [
"$target_gen_dir/skia.h",
]
}
executable("fiddle") {
include_dirs = [ "$target_gen_dir" ]
libs = []
if (is_linux) {
libs += [ "OSMesa" ]
}
sources = [
"src/images/SkForceLinking.cpp",
"tools/fiddle/draw.cpp",
"tools/fiddle/fiddle_main.cpp",
]
deps = [
":skia",
":skia.h",
]
}
# Targets guarded by skia_enable_tools may use //third_party freely.
if (skia_enable_tools) {
template("test_lib") {
config(target_name + "_config") {
include_dirs = invoker.public_include_dirs
}
source_set(target_name) {
forward_variables_from(invoker, "*", [ "public_include_dirs" ])
public_configs = [
":" + target_name + "_config",
":skia_private",
]
if (!defined(deps)) {
deps = []
}
deps += [ ":skia" ]
testonly = true
}
}
test_lib("gpu_tool_utils") {
public_include_dirs = [ "tools/gpu" ]
sources = [
"tools/gpu/GrContextFactory.cpp",
"tools/gpu/GrTest.cpp",
"tools/gpu/TestContext.cpp",
"tools/gpu/gl/GLTestContext.cpp",
"tools/gpu/gl/debug/DebugGLTestContext.cpp",
"tools/gpu/gl/debug/GrBufferObj.cpp",
"tools/gpu/gl/debug/GrFrameBufferObj.cpp",
"tools/gpu/gl/debug/GrProgramObj.cpp",
"tools/gpu/gl/debug/GrShaderObj.cpp",
"tools/gpu/gl/debug/GrTextureObj.cpp",
"tools/gpu/gl/debug/GrTextureUnitObj.cpp",
"tools/gpu/gl/null/NullGLTestContext.cpp",
]
libs = []
if (is_linux) {
sources += [ "tools/gpu/gl/glx/CreatePlatformGLTestContext_glx.cpp" ]
} else if (is_mac) {
sources += [ "tools/gpu/gl/mac/CreatePlatformGLTestContext_mac.cpp" ]
}
}
test_lib("flags") {
public_include_dirs = [ "tools/flags" ]
sources = [
"tools/flags/SkCommandLineFlags.cpp",
"tools/flags/SkCommonFlags.cpp",
"tools/flags/SkCommonFlagsConfig.cpp",
]
deps = [
":gpu_tool_utils",
]
}
test_lib("tool_utils") {
public_include_dirs = [
"tools",
"tools/debugger",
"tools/timer",
]
sources = [
"src/images/SkForceLinking.cpp",
"src/utils/SkMultiPictureDocumentReader.cpp", # TODO(halcanary): move to tools?
"tools/CrashHandler.cpp",
"tools/ProcStats.cpp",
"tools/Resources.cpp",
"tools/ThermalManager.cpp",
"tools/UrlDataManager.cpp",
"tools/debugger/SkDebugCanvas.cpp",
"tools/debugger/SkDrawCommand.cpp",
"tools/debugger/SkJsonWriteBuffer.cpp",
"tools/debugger/SkObjectParser.cpp",
"tools/debugger/SkOverdrawMode.cpp",
"tools/picture_utils.cpp",
"tools/random_parse_path.cpp",
"tools/sk_tool_utils.cpp",
"tools/sk_tool_utils_font.cpp",
"tools/timer/Timer.cpp",
]
deps = [
":flags",
"//third_party/libpng",
]
public_deps = [
"//third_party/jsoncpp",
]
}
gm_sources = exec_script("gyp/find.py",
[
"*.c*",
rebase_path("gm"),
],
"list lines",
[])
test_lib("gm") {
public_include_dirs = [ "gm" ]
sources = gm_sources
deps = [
":gpu_tool_utils",
":skia",
":tool_utils",
]
}
tests_sources = exec_script("gyp/find.py",
[
"*.c*",
rebase_path("tests"),
],
"list lines",
[])
test_lib("tests") {
public_include_dirs = [ "tests" ]
sources =
tests_sources - [
rebase_path("tests/FontMgrAndroidParserTest.cpp"), # Android only
rebase_path("tests/PathOpsSkpClipTest.cpp"), # alternate main
rebase_path("tests/SkSLErrorTest.cpp"), # TODO: make work
rebase_path("tests/SkSLGLSLTest.cpp"), # TODO: make work
rebase_path("tests/SkpSkGrTest.cpp"), # doesn't compile
rebase_path("tests/skia_test.cpp"), # alternate main
]
deps = [
":flags",
":gpu_tool_utils",
":skia",
":tool_utils",
"//third_party/libpng",
"//third_party/zlib",
]
}
bench_sources = exec_script("gyp/find.py",
[
"*.c*",
rebase_path("bench"),
],
"list lines",
[])
test_lib("bench") {
public_include_dirs = [ "bench" ]
sources = bench_sources
sources -= [
rebase_path("bench/nanobench.cpp"),
rebase_path("bench/nanobenchAndroid.cpp"),
]
deps = [
":flags",
":gm",
":gpu_tool_utils",
":skia",
":tool_utils",
]
}
test_lib("experimental_svg_model") {
public_include_dirs = [ "experimental/svg/model" ]
sources = [
"experimental/svg/model/SkSVGAttribute.cpp",
"experimental/svg/model/SkSVGAttributeParser.cpp",
"experimental/svg/model/SkSVGCircle.cpp",
"experimental/svg/model/SkSVGContainer.cpp",
"experimental/svg/model/SkSVGDOM.cpp",
"experimental/svg/model/SkSVGEllipse.cpp",
"experimental/svg/model/SkSVGLine.cpp",
"experimental/svg/model/SkSVGNode.cpp",
"experimental/svg/model/SkSVGPath.cpp",
"experimental/svg/model/SkSVGPoly.cpp",
"experimental/svg/model/SkSVGRect.cpp",
"experimental/svg/model/SkSVGRenderContext.cpp",
"experimental/svg/model/SkSVGSVG.cpp",
"experimental/svg/model/SkSVGShape.cpp",
"experimental/svg/model/SkSVGTransformableNode.cpp",
"experimental/svg/model/SkSVGValue.cpp",
]
deps = [
":skia",
]
}
executable("dm") {
sources = [
"dm/DM.cpp",
"dm/DMJsonWriter.cpp",
"dm/DMSrcSink.cpp",
]
include_dirs = [ "tests" ]
deps = [
":experimental_svg_model",
":flags",
":gm",
":gpu_tool_utils",
":skia",
":tests",
":tool_utils",
"//third_party/jsoncpp",
"//third_party/libpng",
]
testonly = true
}
executable("monobench") {
sources = [
"tools/monobench.cpp",
]
deps = [
":bench",
":skia",
]
testonly = true
}
executable("nanobench") {
sources = [
"bench/nanobench.cpp",
]
deps = [
":bench",
":flags",
":gm",
":gpu_tool_utils",
":skia",
":tool_utils",
"//third_party/jsoncpp",
]
testonly = true
}
executable("sktexttopdf") {
sources = [
"tools/SkShaper_harfbuzz.cpp",
"tools/using_skia_and_harfbuzz.cpp",
]
deps = [
":skia",
"//third_party/harfbuzz",
]
testonly = true
}
}