1# Copyright 2016 Google Inc.
2#
3# Use of this source code is governed by a BSD-style license that can be
4# found in the LICENSE file.
5
6declare_args() {
7  skia_use_system_libjpeg_turbo = is_official_build
8}
9
10import("../third_party.gni")
11
12if (skia_use_system_libjpeg_turbo) {
13  system("libjpeg") {
14    libs = [ "jpeg" ]
15  }
16} else {
17  third_party("libjpeg") {
18    public_include_dirs = [
19      ".",
20      "../externals/libjpeg-turbo",
21    ]
22
23    defines = [
24      "TURBO_FOR_WINDOWS",
25
26      # Add support for arithmetic encoding (C_) and decoding (D_).
27      # This matches Android. Note that such JPEGs are likely rare, given lack of
28      # support by major browsers.
29      "C_ARITH_CODING_SUPPORTED=1",
30      "D_ARITH_CODING_SUPPORTED=1",
31    ]
32
33    if (!is_win || is_clang) {
34      defines += [ "USE_CLZ_INTRINSIC" ]  # Cuts a 64K table.
35    }
36
37    sources = [
38      "../externals/libjpeg-turbo/jaricom.c",
39      "../externals/libjpeg-turbo/jcapimin.c",
40      "../externals/libjpeg-turbo/jcapistd.c",
41      "../externals/libjpeg-turbo/jcarith.c",
42      "../externals/libjpeg-turbo/jccoefct.c",
43      "../externals/libjpeg-turbo/jccolor.c",
44      "../externals/libjpeg-turbo/jcdctmgr.c",
45      "../externals/libjpeg-turbo/jchuff.c",
46      "../externals/libjpeg-turbo/jcinit.c",
47      "../externals/libjpeg-turbo/jcmainct.c",
48      "../externals/libjpeg-turbo/jcmarker.c",
49      "../externals/libjpeg-turbo/jcmaster.c",
50      "../externals/libjpeg-turbo/jcomapi.c",
51      "../externals/libjpeg-turbo/jcparam.c",
52      "../externals/libjpeg-turbo/jcphuff.c",
53      "../externals/libjpeg-turbo/jcprepct.c",
54      "../externals/libjpeg-turbo/jcsample.c",
55      "../externals/libjpeg-turbo/jdapimin.c",
56      "../externals/libjpeg-turbo/jdapistd.c",
57      "../externals/libjpeg-turbo/jdarith.c",
58      "../externals/libjpeg-turbo/jdcoefct.c",
59      "../externals/libjpeg-turbo/jdcolor.c",
60      "../externals/libjpeg-turbo/jddctmgr.c",
61      "../externals/libjpeg-turbo/jdhuff.c",
62      "../externals/libjpeg-turbo/jdinput.c",
63      "../externals/libjpeg-turbo/jdmainct.c",
64      "../externals/libjpeg-turbo/jdmarker.c",
65      "../externals/libjpeg-turbo/jdmaster.c",
66      "../externals/libjpeg-turbo/jdmerge.c",
67      "../externals/libjpeg-turbo/jdphuff.c",
68      "../externals/libjpeg-turbo/jdpostct.c",
69      "../externals/libjpeg-turbo/jdsample.c",
70      "../externals/libjpeg-turbo/jerror.c",
71      "../externals/libjpeg-turbo/jfdctflt.c",
72      "../externals/libjpeg-turbo/jfdctfst.c",
73      "../externals/libjpeg-turbo/jfdctint.c",
74      "../externals/libjpeg-turbo/jidctflt.c",
75      "../externals/libjpeg-turbo/jidctfst.c",
76      "../externals/libjpeg-turbo/jidctint.c",
77      "../externals/libjpeg-turbo/jidctred.c",
78      "../externals/libjpeg-turbo/jmemmgr.c",
79      "../externals/libjpeg-turbo/jmemnobs.c",
80      "../externals/libjpeg-turbo/jpeg_nbits_table.c",
81      "../externals/libjpeg-turbo/jquant1.c",
82      "../externals/libjpeg-turbo/jquant2.c",
83      "../externals/libjpeg-turbo/jutils.c",
84    ]
85
86    if (!is_win && (current_cpu == "arm" || current_cpu == "arm64")) {
87      defines += [ "NEON_INTRINSICS" ]
88      sources += [
89        "../externals/libjpeg-turbo/simd/arm/jccolor-neon.c",
90        "../externals/libjpeg-turbo/simd/arm/jcgray-neon.c",
91        "../externals/libjpeg-turbo/simd/arm/jcphuff-neon.c",
92        "../externals/libjpeg-turbo/simd/arm/jcsample-neon.c",
93        "../externals/libjpeg-turbo/simd/arm/jdcolor-neon.c",
94        "../externals/libjpeg-turbo/simd/arm/jdmerge-neon.c",
95        "../externals/libjpeg-turbo/simd/arm/jdsample-neon.c",
96        "../externals/libjpeg-turbo/simd/arm/jfdctfst-neon.c",
97        "../externals/libjpeg-turbo/simd/arm/jfdctint-neon.c",
98        "../externals/libjpeg-turbo/simd/arm/jidctfst-neon.c",
99        "../externals/libjpeg-turbo/simd/arm/jidctint-neon.c",
100        "../externals/libjpeg-turbo/simd/arm/jidctred-neon.c",
101        "../externals/libjpeg-turbo/simd/arm/jquanti-neon.c",
102      ]
103      include_dirs = [ "../externals/libjpeg-turbo/simd/arm" ]
104      if (current_cpu == "arm") {
105        sources += [
106          "../externals/libjpeg-turbo/simd/arm/aarch32/jchuff-neon.c",
107          "../externals/libjpeg-turbo/simd/arm/aarch32/jsimd.c",
108        ]
109      } else if (current_cpu == "arm64") {
110        sources += [
111          "../externals/libjpeg-turbo/simd/arm/aarch64/jchuff-neon.c",
112          "../externals/libjpeg-turbo/simd/arm/aarch64/jsimd.c",
113        ]
114      }
115    } else {
116      sources += [ "../externals/libjpeg-turbo/jsimd_none.c" ]
117    }
118  }
119}
120