# 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_use_system_libjpeg_turbo = is_official_build && !is_wasm } import("../third_party.gni") if (skia_use_system_libjpeg_turbo) { system("libjpeg") { libs = [ "jpeg" ] } } else { source_set("libjpeg_headers") { sources = [ "../externals/libjpeg-turbo/src/jconfig.h", "../externals/libjpeg-turbo/src/jdct.h", "../externals/libjpeg-turbo/src/jinclude.h", "../externals/libjpeg-turbo/src/jmorecfg.h", "../externals/libjpeg-turbo/src/jpeglib.h", "../externals/libjpeg-turbo/src/jpeglibmangler.h", ] } # Based on # https://github.com/libjpeg-turbo/libjpeg-turbo/blob/20ade4de/CMakeLists.txt#L605 # # Starting in 3.x, libjpeg-turbo supports runtime-selectable precision. # This requires compiling some source sets multiple times, with different # BITS_IN_JSAMPLE defines (16, 12, and the default 8), to generate precision- # specific symbols (e.g. jpeg16_read_scanlines vs jpeg12_read_scanlines vs # jpeg_read_scanlines). libjpeg16_sources = [ "../externals/libjpeg-turbo/src/jcapistd.c", "../externals/libjpeg-turbo/src/jccolor.c", "../externals/libjpeg-turbo/src/jcdiffct.c", "../externals/libjpeg-turbo/src/jclossls.c", "../externals/libjpeg-turbo/src/jcmainct.c", "../externals/libjpeg-turbo/src/jcprepct.c", "../externals/libjpeg-turbo/src/jcsample.c", "../externals/libjpeg-turbo/src/jdapistd.c", "../externals/libjpeg-turbo/src/jdcolor.c", "../externals/libjpeg-turbo/src/jddiffct.c", "../externals/libjpeg-turbo/src/jdlossls.c", "../externals/libjpeg-turbo/src/jdmainct.c", "../externals/libjpeg-turbo/src/jdpostct.c", "../externals/libjpeg-turbo/src/jdsample.c", "../externals/libjpeg-turbo/src/jutils.c", ] libjpeg12_sources = libjpeg16_sources + [ "../externals/libjpeg-turbo/src/jccoefct.c", "../externals/libjpeg-turbo/src/jcdctmgr.c", "../externals/libjpeg-turbo/src/jdcoefct.c", "../externals/libjpeg-turbo/src/jddctmgr.c", "../externals/libjpeg-turbo/src/jdmerge.c", "../externals/libjpeg-turbo/src/jfdctfst.c", "../externals/libjpeg-turbo/src/jfdctint.c", "../externals/libjpeg-turbo/src/jidctflt.c", "../externals/libjpeg-turbo/src/jidctfst.c", "../externals/libjpeg-turbo/src/jidctint.c", "../externals/libjpeg-turbo/src/jidctred.c", "../externals/libjpeg-turbo/src/jquant1.c", "../externals/libjpeg-turbo/src/jquant2.c", ] libjpeg_sources = libjpeg12_sources + [ "../externals/libjpeg-turbo/src/jaricom.c", "../externals/libjpeg-turbo/src/jcapimin.c", "../externals/libjpeg-turbo/src/jcarith.c", "../externals/libjpeg-turbo/src/jchuff.c", "../externals/libjpeg-turbo/src/jcicc.c", "../externals/libjpeg-turbo/src/jcinit.c", "../externals/libjpeg-turbo/src/jclhuff.c", "../externals/libjpeg-turbo/src/jcmarker.c", "../externals/libjpeg-turbo/src/jcmaster.c", "../externals/libjpeg-turbo/src/jcomapi.c", "../externals/libjpeg-turbo/src/jcparam.c", "../externals/libjpeg-turbo/src/jcphuff.c", "../externals/libjpeg-turbo/src/jctrans.c", "../externals/libjpeg-turbo/src/jdapimin.c", "../externals/libjpeg-turbo/src/jdarith.c", "../externals/libjpeg-turbo/src/jdatadst.c", "../externals/libjpeg-turbo/src/jdatasrc.c", "../externals/libjpeg-turbo/src/jdhuff.c", "../externals/libjpeg-turbo/src/jdicc.c", "../externals/libjpeg-turbo/src/jdinput.c", "../externals/libjpeg-turbo/src/jdlhuff.c", "../externals/libjpeg-turbo/src/jdmarker.c", "../externals/libjpeg-turbo/src/jdmaster.c", "../externals/libjpeg-turbo/src/jdphuff.c", "../externals/libjpeg-turbo/src/jdtrans.c", "../externals/libjpeg-turbo/src/jerror.c", "../externals/libjpeg-turbo/src/jfdctflt.c", "../externals/libjpeg-turbo/src/jmemmgr.c", "../externals/libjpeg-turbo/src/jmemnobs.c", "../externals/libjpeg-turbo/src/jpeg_nbits.c", ] static_library("libjpeg16") { sources = libjpeg16_sources defines = [ "NO_GETENV", "NO_PUTENV", "BITS_IN_JSAMPLE=16", ] public_deps = [ ":libjpeg_headers" ] } static_library("libjpeg12") { sources = libjpeg12_sources defines = [ "NO_GETENV", "NO_PUTENV", "BITS_IN_JSAMPLE=12", ] public_deps = [ ":libjpeg_headers" ] } third_party("libjpeg") { public_include_dirs = [ ".", "../externals/libjpeg-turbo", "../externals/libjpeg-turbo/src", ] defines = [ "TURBO_FOR_WINDOWS", # Add support for arithmetic encoding (C_) and decoding (D_). # This matches Android. Note that such JPEGs are likely rare, given lack of # support by major browsers. "C_ARITH_CODING_SUPPORTED=1", "D_ARITH_CODING_SUPPORTED=1", ] if (!is_win || is_clang) { defines += [ "USE_CLZ_INTRINSIC" ] # Cuts a 64K table. } sources = libjpeg_sources public_deps = [ ":libjpeg12", ":libjpeg16", ":libjpeg_headers", ] if (!is_win && (current_cpu == "arm" || current_cpu == "arm64")) { defines += [ "NEON_INTRINSICS", "WITH_SIMD", ] sources += [ "../externals/libjpeg-turbo/simd/arm/jccolor-neon.c", "../externals/libjpeg-turbo/simd/arm/jcgray-neon.c", "../externals/libjpeg-turbo/simd/arm/jcphuff-neon.c", "../externals/libjpeg-turbo/simd/arm/jcsample-neon.c", "../externals/libjpeg-turbo/simd/arm/jdcolor-neon.c", "../externals/libjpeg-turbo/simd/arm/jdmerge-neon.c", "../externals/libjpeg-turbo/simd/arm/jdsample-neon.c", "../externals/libjpeg-turbo/simd/arm/jfdctfst-neon.c", "../externals/libjpeg-turbo/simd/arm/jfdctint-neon.c", "../externals/libjpeg-turbo/simd/arm/jidctfst-neon.c", "../externals/libjpeg-turbo/simd/arm/jidctint-neon.c", "../externals/libjpeg-turbo/simd/arm/jidctred-neon.c", "../externals/libjpeg-turbo/simd/arm/jquanti-neon.c", ] include_dirs = [ "../externals/libjpeg-turbo/simd/arm" ] if (current_cpu == "arm") { sources += [ "../externals/libjpeg-turbo/simd/arm/aarch32/jchuff-neon.c", "../externals/libjpeg-turbo/simd/arm/aarch32/jsimd.c", ] } else if (current_cpu == "arm64") { sources += [ "../externals/libjpeg-turbo/simd/arm/aarch64/jchuff-neon.c", "../externals/libjpeg-turbo/simd/arm/aarch64/jsimd.c", ] } } } }