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_libwebp = is_official_build
8}
9
10import("../third_party.gni")
11
12if (skia_use_system_libwebp) {
13  system("libwebp") {
14    libs = [
15      "webp",
16      "webpdemux",
17      "webpmux",
18    ]
19  }
20} else {
21  config("libwebp_defines") {
22    defines = [
23      # WebP naturally decodes to RGB_565, and we work with BGR_565.
24      # This makes WebP decode to BGR_565 when we ask for RGB_565.
25      # (It also swaps the color order for 4444, but we don't care today.)
26      # TODO: swizzle ourself in SkWebpCodec instead of requiring this non-standard libwebp.
27      "WEBP_SWAP_16BIT_CSP",
28    ]
29  }
30
31  third_party("libwebp_sse41") {
32    public_include_dirs = [
33      "../externals/libwebp/src",
34      "../externals/libwebp",
35    ]
36    configs += [ ":libwebp_defines" ]
37    sources = [
38      "../externals/libwebp/src/dsp/alpha_processing_sse41.c",
39      "../externals/libwebp/src/dsp/dec_sse41.c",
40      "../externals/libwebp/src/dsp/enc_sse41.c",
41      "../externals/libwebp/src/dsp/lossless_enc_sse41.c",
42      "../externals/libwebp/src/dsp/upsampling_sse41.c",
43      "../externals/libwebp/src/dsp/yuv_sse41.c",
44    ]
45    if ((current_cpu == "x86" || current_cpu == "x64") &&
46        (!is_win || is_clang)) {
47      cflags_c = [ "-msse4.1" ]
48    }
49  }
50
51  third_party("libwebp") {
52    public_include_dirs = [
53      "../externals/libwebp/src",
54      "../externals/libwebp",
55    ]
56
57    deps = [
58      ":libwebp_sse41",
59    ]
60    if (is_android) {
61      deps += [ "//third_party/cpu-features" ]
62    }
63
64    configs += [ ":libwebp_defines" ]
65    sources = [
66      "../externals/libwebp/src/dec/alpha_dec.c",
67      "../externals/libwebp/src/dec/buffer_dec.c",
68      "../externals/libwebp/src/dec/frame_dec.c",
69      "../externals/libwebp/src/dec/idec_dec.c",
70      "../externals/libwebp/src/dec/io_dec.c",
71      "../externals/libwebp/src/dec/quant_dec.c",
72      "../externals/libwebp/src/dec/tree_dec.c",
73      "../externals/libwebp/src/dec/vp8_dec.c",
74      "../externals/libwebp/src/dec/vp8l_dec.c",
75      "../externals/libwebp/src/dec/webp_dec.c",
76      "../externals/libwebp/src/demux/anim_decode.c",
77      "../externals/libwebp/src/demux/demux.c",
78      "../externals/libwebp/src/dsp/alpha_processing.c",
79      "../externals/libwebp/src/dsp/alpha_processing_mips_dsp_r2.c",
80      "../externals/libwebp/src/dsp/alpha_processing_neon.c",
81      "../externals/libwebp/src/dsp/alpha_processing_sse2.c",
82      "../externals/libwebp/src/dsp/cost.c",
83      "../externals/libwebp/src/dsp/cost_mips32.c",
84      "../externals/libwebp/src/dsp/cost_mips_dsp_r2.c",
85      "../externals/libwebp/src/dsp/cost_neon.c",
86      "../externals/libwebp/src/dsp/cost_sse2.c",
87      "../externals/libwebp/src/dsp/cpu.c",
88      "../externals/libwebp/src/dsp/dec.c",
89      "../externals/libwebp/src/dsp/dec_clip_tables.c",
90      "../externals/libwebp/src/dsp/dec_mips32.c",
91      "../externals/libwebp/src/dsp/dec_mips_dsp_r2.c",
92      "../externals/libwebp/src/dsp/dec_msa.c",
93      "../externals/libwebp/src/dsp/dec_neon.c",
94      "../externals/libwebp/src/dsp/dec_sse2.c",
95      "../externals/libwebp/src/dsp/enc.c",
96      "../externals/libwebp/src/dsp/enc_mips32.c",
97      "../externals/libwebp/src/dsp/enc_mips_dsp_r2.c",
98      "../externals/libwebp/src/dsp/enc_msa.c",
99      "../externals/libwebp/src/dsp/enc_neon.c",
100      "../externals/libwebp/src/dsp/enc_sse2.c",
101      "../externals/libwebp/src/dsp/filters.c",
102      "../externals/libwebp/src/dsp/filters_mips_dsp_r2.c",
103      "../externals/libwebp/src/dsp/filters_msa.c",
104      "../externals/libwebp/src/dsp/filters_neon.c",
105      "../externals/libwebp/src/dsp/filters_sse2.c",
106      "../externals/libwebp/src/dsp/lossless.c",
107      "../externals/libwebp/src/dsp/lossless_enc.c",
108      "../externals/libwebp/src/dsp/lossless_enc_mips32.c",
109      "../externals/libwebp/src/dsp/lossless_enc_mips_dsp_r2.c",
110      "../externals/libwebp/src/dsp/lossless_enc_msa.c",
111      "../externals/libwebp/src/dsp/lossless_enc_neon.c",
112      "../externals/libwebp/src/dsp/lossless_enc_sse2.c",
113      "../externals/libwebp/src/dsp/lossless_mips_dsp_r2.c",
114      "../externals/libwebp/src/dsp/lossless_msa.c",
115      "../externals/libwebp/src/dsp/lossless_neon.c",
116      "../externals/libwebp/src/dsp/lossless_sse2.c",
117      "../externals/libwebp/src/dsp/rescaler.c",
118      "../externals/libwebp/src/dsp/rescaler_mips32.c",
119      "../externals/libwebp/src/dsp/rescaler_mips_dsp_r2.c",
120      "../externals/libwebp/src/dsp/rescaler_msa.c",
121      "../externals/libwebp/src/dsp/rescaler_neon.c",
122      "../externals/libwebp/src/dsp/rescaler_sse2.c",
123      "../externals/libwebp/src/dsp/ssim.c",
124      "../externals/libwebp/src/dsp/ssim_sse2.c",
125      "../externals/libwebp/src/dsp/upsampling.c",
126      "../externals/libwebp/src/dsp/upsampling_mips_dsp_r2.c",
127      "../externals/libwebp/src/dsp/upsampling_msa.c",
128      "../externals/libwebp/src/dsp/upsampling_neon.c",
129      "../externals/libwebp/src/dsp/upsampling_sse2.c",
130      "../externals/libwebp/src/dsp/yuv.c",
131      "../externals/libwebp/src/dsp/yuv_mips32.c",
132      "../externals/libwebp/src/dsp/yuv_mips_dsp_r2.c",
133      "../externals/libwebp/src/dsp/yuv_neon.c",
134      "../externals/libwebp/src/dsp/yuv_sse2.c",
135      "../externals/libwebp/src/enc/alpha_enc.c",
136      "../externals/libwebp/src/enc/analysis_enc.c",
137      "../externals/libwebp/src/enc/backward_references_cost_enc.c",
138      "../externals/libwebp/src/enc/backward_references_enc.c",
139      "../externals/libwebp/src/enc/config_enc.c",
140      "../externals/libwebp/src/enc/cost_enc.c",
141      "../externals/libwebp/src/enc/filter_enc.c",
142      "../externals/libwebp/src/enc/frame_enc.c",
143      "../externals/libwebp/src/enc/histogram_enc.c",
144      "../externals/libwebp/src/enc/iterator_enc.c",
145      "../externals/libwebp/src/enc/near_lossless_enc.c",
146      "../externals/libwebp/src/enc/picture_csp_enc.c",
147      "../externals/libwebp/src/enc/picture_enc.c",
148      "../externals/libwebp/src/enc/picture_psnr_enc.c",
149      "../externals/libwebp/src/enc/picture_rescale_enc.c",
150      "../externals/libwebp/src/enc/picture_tools_enc.c",
151      "../externals/libwebp/src/enc/predictor_enc.c",
152      "../externals/libwebp/src/enc/quant_enc.c",
153      "../externals/libwebp/src/enc/syntax_enc.c",
154      "../externals/libwebp/src/enc/token_enc.c",
155      "../externals/libwebp/src/enc/tree_enc.c",
156      "../externals/libwebp/src/enc/vp8l_enc.c",
157      "../externals/libwebp/src/enc/webp_enc.c",
158      "../externals/libwebp/src/mux/anim_encode.c",
159      "../externals/libwebp/src/mux/muxedit.c",
160      "../externals/libwebp/src/mux/muxinternal.c",
161      "../externals/libwebp/src/mux/muxread.c",
162      "../externals/libwebp/src/utils/bit_reader_utils.c",
163      "../externals/libwebp/src/utils/bit_writer_utils.c",
164      "../externals/libwebp/src/utils/color_cache_utils.c",
165      "../externals/libwebp/src/utils/filters_utils.c",
166      "../externals/libwebp/src/utils/huffman_encode_utils.c",
167      "../externals/libwebp/src/utils/huffman_utils.c",
168      "../externals/libwebp/src/utils/quant_levels_dec_utils.c",
169      "../externals/libwebp/src/utils/quant_levels_utils.c",
170      "../externals/libwebp/src/utils/random_utils.c",
171      "../externals/libwebp/src/utils/rescaler_utils.c",
172      "../externals/libwebp/src/utils/thread_utils.c",
173      "../externals/libwebp/src/utils/utils.c",
174    ]
175  }
176}
177