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authorTom Sepez <tsepez@chromium.org>2015-02-05 15:06:01 -0800
committerTom Sepez <tsepez@chromium.org>2015-02-05 15:06:01 -0800
commitaf18cb3e7c89d4b6b93765d0f3e5ae6e2e0d8163 (patch)
treeb60ec53ec26aa55221a81330322938eec8bc3197 /core
parent93daa3c8942b837a948d4803145a07e2fd9c084b (diff)
downloadpdfium-af18cb3e7c89d4b6b93765d0f3e5ae6e2e0d8163.tar.xz
XFA: Support PNG format in pdfium_test and add image diffing
Lays the groundwork for pixel-diffing tests in pdfium. This is a port of chromium's tools/image_diff/image_diff_png.cc onto the top of the fxcodec-provided version of libpng. pdfium_test is modified to support the new format, and the tools/image_diff.cc image comparison utility is provided, stripped of its base/ dependencies. Unfortunately, this can't be back-ported to origin/main, since the underlying PNG support isn't present inside pdfium. BUG=https://code.google.com/p/pdfium/issues/detail?id=62 R=thestig@chromium.org Review URL: https://codereview.chromium.org/870203005
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