Use libjpeg-turbo instead of our own copy of libjpeg.

Check out libjpeg-turbo via DEPS.
Also checkout yasm via DEPS and copy some yasm build files from
Chromium.

BUG=chromium:541704,pdfium:389

Change-Id: Ic7af415f002a3ca2acd9223ed3474dedf3930b32
Reviewed-on: https://pdfium-review.googlesource.com/3470
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>

1 files changed, 33 insertions, 74 deletions

diff --git a/third_party/BUILD.gn b/third_party/BUILD.gn
index 81f919046f..c270a1063a 100644
--- a/third_party/BUILD.gn
+++ b/third_party/BUILD.gn
@@ -280,83 +280,42 @@ static_library("fx_lcms2") {
   ]
 }
 
-# This is only used for standalone builds.
-config("jpeg_warnings") {
-  visibility = [ ":*" ]
-  if (is_clang) {
-    cflags = [ "-Wno-shift-negative-value" ]
+if (!build_with_chromium) {
+  declare_args() {
+    # Uses system libjpeg. If true, overrides use_libjpeg_turbo.
+    use_system_libjpeg = false
+
+    # Uses libjpeg_turbo as the jpeg implementation. Has no effect if
+    # use_system_libjpeg is set.
+    use_libjpeg_turbo = true
   }
-}
 
-static_library("jpeg") {
-  configs -= [ "//build/config/compiler:chromium_code" ]
-  configs += [
-    "//build/config/compiler:no_chromium_code",
-    ":pdfium_third_party_config",
+  config("system_libjpeg_config") {
+    libs = [ "jpeg" ]
+    defines = [ "USE_SYSTEM_LIBJPEG" ]
+  }
 
-    # Must be after no_chromium_code for warning flags to be ordered correctly.
-    ":jpeg_warnings",
-  ]
-  sources = [
-    "libjpeg/cderror.h",
-    "libjpeg/cdjpeg.h",
-    "libjpeg/fpdfapi_jcapimin.c",
-    "libjpeg/fpdfapi_jcapistd.c",
-    "libjpeg/fpdfapi_jccoefct.c",
-    "libjpeg/fpdfapi_jccolor.c",
-    "libjpeg/fpdfapi_jcdctmgr.c",
-    "libjpeg/fpdfapi_jchuff.c",
-    "libjpeg/fpdfapi_jcinit.c",
-    "libjpeg/fpdfapi_jcmainct.c",
-    "libjpeg/fpdfapi_jcmarker.c",
-    "libjpeg/fpdfapi_jcmaster.c",
-    "libjpeg/fpdfapi_jcomapi.c",
-    "libjpeg/fpdfapi_jcparam.c",
-    "libjpeg/fpdfapi_jcphuff.c",
-    "libjpeg/fpdfapi_jcprepct.c",
-    "libjpeg/fpdfapi_jcsample.c",
-    "libjpeg/fpdfapi_jctrans.c",
-    "libjpeg/fpdfapi_jdapimin.c",
-    "libjpeg/fpdfapi_jdapistd.c",
-    "libjpeg/fpdfapi_jdcoefct.c",
-    "libjpeg/fpdfapi_jdcolor.c",
-    "libjpeg/fpdfapi_jddctmgr.c",
-    "libjpeg/fpdfapi_jdhuff.c",
-    "libjpeg/fpdfapi_jdinput.c",
-    "libjpeg/fpdfapi_jdmainct.c",
-    "libjpeg/fpdfapi_jdmarker.c",
-    "libjpeg/fpdfapi_jdmaster.c",
-    "libjpeg/fpdfapi_jdmerge.c",
-    "libjpeg/fpdfapi_jdphuff.c",
-    "libjpeg/fpdfapi_jdpostct.c",
-    "libjpeg/fpdfapi_jdsample.c",
-    "libjpeg/fpdfapi_jdtrans.c",
-    "libjpeg/fpdfapi_jerror.c",
-    "libjpeg/fpdfapi_jfdctfst.c",
-    "libjpeg/fpdfapi_jfdctint.c",
-    "libjpeg/fpdfapi_jidctfst.c",
-    "libjpeg/fpdfapi_jidctint.c",
-    "libjpeg/fpdfapi_jidctred.c",
-    "libjpeg/fpdfapi_jmemmgr.c",
-    "libjpeg/fpdfapi_jmemnobs.c",
-    "libjpeg/fpdfapi_jutils.c",
-    "libjpeg/jchuff.h",
-    "libjpeg/jconfig.h",
-    "libjpeg/jdct.h",
-    "libjpeg/jdhuff.h",
-    "libjpeg/jerror.h",
-    "libjpeg/jinclude.h",
-    "libjpeg/jmemsys.h",
-    "libjpeg/jmorecfg.h",
-    "libjpeg/jpegint.h",
-    "libjpeg/jpeglib.h",
-    "libjpeg/jversion.h",
-    "libjpeg/makefile",
-    "libjpeg/transupp.h",
-  ]
-  deps = [
-    "..:fxcrt",
-  ]
+  config("libjpeg_turbo_config") {
+    defines = [ "USE_LIBJPEG_TURBO=1" ]
+  }
+
+  # This is a meta target that forwards to the system's libjpeg,
+  # third_party/libjpeg, or third_party/libjpeg_turbo depending on the build args
+  # declared in this file.
+  group("jpeg") {
+    if (use_system_libjpeg) {
+      public_configs = [ ":system_libjpeg_config" ]
+    } else if (use_libjpeg_turbo) {
+      public_deps = [
+        "//third_party/libjpeg_turbo:libjpeg",
+      ]
+      public_configs = [ ":libjpeg_turbo_config" ]
+    } else {
+      public_deps = [
+        "//third_party/libjpeg:libjpeg",
+      ]
+    }
+  }
 }
 
 config("fx_libopenjpeg_warnings") {