skia2/third_party/wuffs/BUILD.gn
Nigel Tao c91db040ad Use Wuffs v0.3 by default, not v0.2
This is roll-forward of
https://skia-review.googlesource.com/c/skia/+/298616/

Change-Id: I44d65dcb67555fd76075e2d415d96db82c376cae
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/301756
Commit-Queue: Leon Scroggins <scroggo@google.com>
Reviewed-by: Leon Scroggins <scroggo@google.com>
2020-07-10 16:10:43 +00:00

50 lines
1.6 KiB
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# Copyright 2018 Google Inc.
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import("../third_party.gni")
third_party("wuffs") {
public_include_dirs = [ "../externals/wuffs/release/c" ]
defines = [
# Copy/pasting from "../externals/wuffs/release/c/wuffs-*.c":
#
# ----
#
# Wuffs ships as a "single file C library" or "header file library" as per
# https://github.com/nothings/stb/blob/master/docs/stb_howto.txt
#
# To use that single file as a "foo.c"-like implementation, instead of a
# "foo.h"-like header, #define WUFFS_IMPLEMENTATION before #include'ing or
# compiling it.
#
# ----
"WUFFS_IMPLEMENTATION",
# Continuing to copy/paste:
#
# ----
#
# Defining the WUFFS_CONFIG__MODULE* macros are optional, but it lets users
# of Wuffs' .c file whitelist which parts of Wuffs to build. That file
# contains the entire Wuffs standard library, implementing a variety of
# codecs and file formats. Without this macro definition, an optimizing
# compiler or linker may very well discard Wuffs code for unused codecs,
# but listing the Wuffs modules we use makes that process explicit.
# Preprocessing means that such code simply isn't compiled.
#
# ----
#
# For Skia, we're only interested in particular image codes (e.g. GIF) and
# their dependencies (e.g. BASE, LZW).
"WUFFS_CONFIG__MODULES",
"WUFFS_CONFIG__MODULE__BASE",
"WUFFS_CONFIG__MODULE__GIF",
"WUFFS_CONFIG__MODULE__LZW",
]
sources = [ "../externals/wuffs/release/c/wuffs-v0.3.c" ]
}