blob: 68b91babb0ffe3aaa192e63272b2c6f6db606a66 [file] [log] [blame]
load("@emsdk//emscripten_toolchain:wasm_rules.bzl", "wasm_cc_binary")
load("//bazel/common_config_settings:defs.bzl", "bool_flag")
load("//bazel:cc_binary_with_flags.bzl", "cc_binary_with_flags")
package(default_visibility = ["//:__subpackages__"])
BASE_LINKOPTS = [
#"-flto", # https://github.com/emscripten-core/emsdk/issues/807
"--bind", # Compiles the source code using the Embind bindings to connect C/C++ and JavaScript
"--no-entry",
"-sALLOW_MEMORY_GROWTH",
"-sUSE_PTHREADS=0", # Disable pthreads
"-sMODULARIZE",
"-sDISABLE_EXCEPTION_CATCHING", # Disable all exception catching
"-sNODEJS_CATCH_EXIT=0", # We don't have a 'main' so disable exit() catching
"-sWASM",
"-sMAX_WEBGL_VERSION=2",
"-sUSE_WEBGL2=1",
"-sFORCE_FILESYSTEM=0",
"-sDYNAMIC_EXECUTION=0",
"-sFILESYSTEM=0",
"-sEXPORTED_FUNCTIONS=['_malloc','_free']",
]
RELEASE_OPTS = [
"-sASSERTIONS=0", # Turn off assertions
"-Oz",
]
DEBUG_OPTS = [
"--closure 0", # Do not use closure
"-sASSERTIONS", # Turn on assertions
"-sGL_ASSERTIONS",
"-O0",
"-g3",
"--source-map-base=/build/",
]
GM_OPTS = [
"-sEXPORT_NAME=InitWasmGMTests",
"--pre-js",
"modules/canvaskit/gm.js",
"-sDEMANGLE_SUPPORT=1",
"--profiling-funcs",
"--profiling",
]
filegroup(
name = "hdrs",
srcs = [
"WasmCommon.h",
],
)
cc_binary_with_flags(
name = "wasm_gm_tests.with_flags",
testonly = True,
srcs = [
"gm_bindings.cpp",
":hdrs",
"//gm:gm_list",
"//tests:test_list",
],
additional_linker_inputs = ["gm.js"],
linkopts = select({
"//bazel/common_config_settings:debug_build": BASE_LINKOPTS + GM_OPTS + DEBUG_OPTS,
"//bazel/common_config_settings:release_build": BASE_LINKOPTS + GM_OPTS + RELEASE_OPTS,
"//conditions:default": BASE_LINKOPTS + GM_OPTS + RELEASE_OPTS,
}),
set_flags = {
"include_decoder": [
"jpeg_decode_codec",
"png_decode_codec",
"webp_decode_codec",
"gif_decode_codec",
],
"include_encoder": [
"jpeg_encode_codec",
"png_encode_codec",
"webp_encode_codec",
],
"gpu_backend": [
"gl_backend",
],
"with_gl_standard": [
"webgl_standard",
],
"is_skia_dev_build": [
"True",
],
},
# This target won't build successfully on its own because of missing emscripten
# headers etc. Therefore, we hide it from wildcards.
tags = ["manual"],
deps = [
"//:skia_core",
"//gm",
"//src/core:SkFontMgrPriv_hdr",
"//tests",
"//tools:hash_and_encode",
"//tools:resource_factory",
"//tools/fonts:test_font_manager",
],
)
wasm_cc_binary(
name = "wasm_gm_tests",
testonly = True,
cc_target = ":wasm_gm_tests.with_flags",
)
# See https://stackoverflow.com/a/57499321 for reference.
genrule(
name = "create_notomono_cpp",
srcs = ["fonts/NotoMono-Regular.ttf"],
outs = ["fonts/NotoMono-Regular.ttf.bazel.cpp"], # Distinct name from compile.sh's version
cmd = "$(location //tools:embed_resources) --name=SK_EMBEDDED_FONTS " +
"--input=modules/canvaskit/fonts/NotoMono-Regular.ttf " +
# The $@ means substitute in the one and only output location, which will be located
# in //bazel-out, not in the fonts subdirectory (although it will be available to clients
# in the fonts/ subdirectory as if it had been there all along.
"--output=$@ " +
"--align=4",
tools = ["//tools:embed_resources"],
)
# Note: These are defines that only impact the _bindings.cpp files in this folder.
# Any defines that need to effect the entire Skia build should go in //bazel/BUILD.bazel
CK_DEFINES = [
"CK_INCLUDE_PATHOPS",
] + select({
":enable_fonts_true": ["CK_INCLUDE_PARAGRAPH"],
":enable_fonts_false": ["CK_NO_FONTS"],
}) + select({
":enable_skp_serialization_true": ["CK_SERIALIZE_SKP=1"],
":enable_skp_serialization_false": [],
}) + select({
":enable_runtime_effect_true": ["CK_INCLUDE_RUNTIME_EFFECT=1"],
":enable_runtime_effect_false": [],
}) + select({
":enable_sksl_tracing_true": ["CK_INCLUDE_SKSL_TRACE=1"],
":enable_sksl_tracing_false": [],
})
CK_RELEASE_OPTS = [
"--closure 1", # Run the closure compiler
# pass the externs file in
"--closure-args=--externs=$(location externs.js)",
]
CK_OPTS = BASE_LINKOPTS + [
"-sEXPORT_NAME=CanvasKitInit",
"-sINITIAL_MEMORY=128MB",
# The order of these --pre-js flags matters! The preamble is a partially open scope and the
# postamble closes it. TODO(kjlubick) do we need to do it this way anymore?
"--pre-js",
"modules/canvaskit/preamble.js",
"--pre-js",
"modules/canvaskit/color.js",
"--pre-js",
"modules/canvaskit/memory.js",
"--pre-js",
"modules/canvaskit/util.js",
"--pre-js",
"modules/canvaskit/interface.js",
"--pre-js",
"modules/canvaskit/pathops.js",
] + select({
"//bazel/common_config_settings:gl_backend": [
"--pre-js",
"modules/canvaskit/cpu.js",
"--pre-js",
"modules/canvaskit/gpu.js",
],
"//conditions:default": [
"--pre-js",
"modules/canvaskit/cpu.js",
],
}) + select({
":enable_fonts_true": [
"--pre-js",
"modules/canvaskit/font.js",
"--pre-js",
"modules/canvaskit/paragraph.js",
],
":enable_fonts_false": [],
}) + select({
":enable_canvas_polyfill_true": [
"--pre-js",
"modules/canvaskit/htmlcanvas/preamble.js",
"--pre-js",
"modules/canvaskit/htmlcanvas/util.js",
"--pre-js",
"modules/canvaskit/htmlcanvas/color.js",
"--pre-js",
"modules/canvaskit/htmlcanvas/font.js",
"--pre-js",
"modules/canvaskit/htmlcanvas/canvas2dcontext.js",
"--pre-js",
"modules/canvaskit/htmlcanvas/htmlcanvas.js",
"--pre-js",
"modules/canvaskit/htmlcanvas/htmlimage.js",
"--pre-js",
"modules/canvaskit/htmlcanvas/imagedata.js",
"--pre-js",
"modules/canvaskit/htmlcanvas/lineargradient.js",
"--pre-js",
"modules/canvaskit/htmlcanvas/path2d.js",
"--pre-js",
"modules/canvaskit/htmlcanvas/pattern.js",
"--pre-js",
"modules/canvaskit/htmlcanvas/radialgradient.js",
"--pre-js",
"modules/canvaskit/htmlcanvas/postamble.js",
],
":enable_canvas_polyfill_false": [],
}) + select({
":enable_skottie_true": [
"--pre-js",
"modules/canvaskit/skottie.js",
],
":enable_skottie_false": [],
}) + select({
":enable_skp_serialization_true": [
"--pre-js",
"modules/canvaskit/skp.js",
],
":enable_skp_serialization_false": [],
}) + select({
":enable_particles_true": [
"--pre-js",
"modules/canvaskit/particles.js",
],
":enable_particles_false": [],
}) + select({
":enable_runtime_effect_true": [
"--pre-js",
"modules/canvaskit/rt_shader.js",
],
":enable_runtime_effect_false": [],
}) + select({
":include_matrix_js_true": [
"--pre-js",
"modules/canvaskit/matrix.js",
],
":include_matrix_js_false": [],
}) + [
# This must come last
"--pre-js",
"modules/canvaskit/postamble.js",
] + select({
"//bazel/common_config_settings:debug_build": DEBUG_OPTS + [
"--pre-js",
"modules/canvaskit/debug.js",
],
"//conditions:default": RELEASE_OPTS + CK_RELEASE_OPTS + [
"--pre-js",
"modules/canvaskit/release.js",
],
})
# All JS files that could possibly be included via --pre-js or --post-js.
# Whether they actually will be or not will be controlled above in the construction of CK_OPTS.
JS_INTERFACE_FILES = [
"color.js",
"cpu.js",
"debug.js",
"font.js",
"gpu.js",
"interface.js",
"matrix.js",
"memory.js",
"paragraph.js",
"particles.js",
"pathops.js",
"postamble.js",
"preamble.js",
"release.js",
"rt_shader.js",
"skottie.js",
"skp.js",
"util.js",
] + [
"htmlcanvas/canvas2dcontext.js",
"htmlcanvas/color.js",
"htmlcanvas/font.js",
"htmlcanvas/htmlcanvas.js",
"htmlcanvas/htmlimage.js",
"htmlcanvas/imagedata.js",
"htmlcanvas/lineargradient.js",
"htmlcanvas/path2d.js",
"htmlcanvas/pattern.js",
"htmlcanvas/postamble.js",
"htmlcanvas/preamble.js",
"htmlcanvas/radialgradient.js",
"htmlcanvas/util.js",
]
CK_SRCS = [
"canvaskit_bindings.cpp",
":hdrs",
] + select({
":include_embedded_font_true": ["fonts/NotoMono-Regular.ttf.bazel.cpp"],
":include_embedded_font_false": [],
}) + select({
":enable_fonts_true": [
"paragraph_bindings.cpp",
"paragraph_bindings_gen.cpp",
],
":enable_fonts_false": [],
}) + select({
":enable_skottie_true": ["skottie_bindings.cpp"],
":enable_skottie_false": [],
}) + select({
":enable_particles_true": ["particles_bindings.cpp"],
":enable_particles_false": [],
})
cc_binary_with_flags(
name = "canvaskit.with_flags",
srcs = CK_SRCS,
additional_linker_inputs = JS_INTERFACE_FILES + ["externs.js"],
# wasm_cc_binary makes the canvaskit.js/canvaskit.wasm based on the actual name
# of the executable.
linkopts = CK_OPTS,
local_defines = CK_DEFINES,
set_flags = {
"disable_tracing": ["True"],
"include_decoder": [
"jpeg_decode_codec",
"png_decode_codec",
"webp_decode_codec",
"gif_decode_codec",
],
"include_encoder": [
"jpeg_encode_codec",
"png_encode_codec",
"webp_encode_codec",
],
# TODO(kjlubick) make this optional, depending on enable_fonts
"fontmgr_factory": [
"custom_embedded_fontmgr_factory",
],
"gpu_backend": [
"gl_backend",
],
"with_gl_standard": [
"webgl_standard",
],
"use_icu": [
"True",
],
"shaper_backend": [
"harfbuzz_shaper",
],
},
# This target won't build successfully on its own because of missing emscripten
# headers etc. Therefore, we hide it from wildcards.
tags = ["manual"],
deps = [
"//:skia_core",
] + select({
":enable_fonts_true": [
"//modules/skparagraph",
],
":enable_fonts_false": [],
}) + select({
":enable_skottie_true": [
"//modules/skottie",
"//modules/skottie:utils",
],
":enable_skottie_false": [],
}) + select({
":enable_particles_true": [
"//modules/particles",
],
":enable_particles_false": [],
}),
)
wasm_cc_binary(
name = "canvaskit_wasm",
# Whatever is before the dot will be the name of the output js and wasm, aka "the stem".
# https://github.com/emscripten-core/emsdk/blob/82ad00499a42abde16b363239d2bc83bf5d863ab/bazel/emscripten_toolchain/wasm_cc_binary.bzl#L91
cc_target = ":canvaskit.with_flags",
)
bool_flag(
default = True,
flag_name = "enable_canvas_polyfill",
)
bool_flag(
default = True,
flag_name = "enable_fonts",
)
bool_flag(
default = True,
flag_name = "include_embedded_font",
)
bool_flag(
default = True,
flag_name = "enable_skottie",
)
bool_flag(
default = True,
flag_name = "enable_skp_serialization",
)
bool_flag(
default = True,
flag_name = "enable_particles",
)
bool_flag(
default = True,
flag_name = "enable_runtime_effect",
)
bool_flag(
default = True,
flag_name = "enable_sksl_tracing",
)
bool_flag(
default = True,
flag_name = "include_matrix_js",
)