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_libpng = is_official_build 8} 9 10import("../third_party.gni") 11 12if (skia_use_system_libpng) { 13 system("libpng") { 14 libs = [ "png" ] 15 } 16} else { 17 third_party("libpng") { 18 public_include_dirs = [ "." ] 19 20 defines = [] 21 deps = [ 22 "//third_party/zlib", 23 ] 24 sources = [ 25 "png.c", 26 "pngerror.c", 27 "pngget.c", 28 "pngmem.c", 29 "pngpread.c", 30 "pngread.c", 31 "pngrio.c", 32 "pngrtran.c", 33 "pngrutil.c", 34 "pngset.c", 35 "pngtrans.c", 36 "pngwio.c", 37 "pngwrite.c", 38 "pngwtran.c", 39 "pngwutil.c", 40 ] 41 42 if (current_cpu == "arm" || current_cpu == "arm64") { 43 sources += [ 44 "arm/arm_init.c", 45 "arm/filter_neon_intrinsics.c", 46 ] 47 } 48 49 if (current_cpu == "x86" || current_cpu == "x64") { 50 defines += [ "PNG_INTEL_SSE" ] 51 sources += [ 52 "contrib/intel/filter_sse2_intrinsics.c", 53 "contrib/intel/intel_init.c", 54 ] 55 } 56 } 57} 58