|author||Hui Yingst <firstname.lastname@example.org>||Tue Sep 27 02:29:23 2022 +0000|
|committer||Pdfium LUCI CQ <email@example.com>||Tue Sep 27 02:29:23 2022 +0000|
Suppress example_062.pdf for Skia and SkiaPaths When Skia/SkiaPaths is enabled, the 10-point stars have unwanted black borders compared to the AGG expectations when rendering at the scale of 1. The unwanted borders will disappear if scale level is larger enough (e.g when scale = 3). Suppress this test for Skia and SkiaPaths until the corresponding bug is fixed. Bug: pdfium:1896 Change-Id: I07207c899cc22face069e691ea7e227d57786d85 Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/98533 Commit-Queue: Nigi <firstname.lastname@example.org> Reviewed-by: Lei Zhang <email@example.com>
PDFium uses the same build tooling as Chromium. See the platform-specific Chromium build instructions to get started, but replace Chromium's “Get the code” instructions with PDFium's.
The default architecture for Windows, Linux, and Mac is “
x64”. On Windows, “
x86” is also supported. GN parameter “
target_cpu = "x86"” can be used to override the default value. If you specify Android build, the default CPU architecture will be “
It is expected that there are still some places lurking in the code which will not function properly on big-endian architectures. Bugs and/or patches are welcome, however providing this support is not a priority at this time.
download_from_google_storage --config and follow the authentication instructions. Note that you must authenticate with your @google.com credentials. Enter “0” if asked for a project-id.
Once you've done this, the toolchain will be installed automatically for you in the Generate the build files step below.
The toolchain will be in
depot_tools\win_toolchain\vs_files\<hash>, and windbg can be found in
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The name of the top-level directory does not matter. In the following example, the directory name is “repo”. This directory must not have been used before by
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mkdir repo cd repo gclient config --unmanaged https://pdfium.googlesource.com/pdfium.git gclient sync cd pdfium
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<directory> name is
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pdfium_test to build, one must set
pdf_is_standalone = true.
By default, the entire project builds with C++17.
When complete the arguments will be stored in
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The pdfium_test program supports reading, parsing, and rasterizing the pages of a .pdf file to .ppm or .png output image files (Windows supports two other formats). For example:
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It is possible the tests in the
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Make sure that your test case doesn't have any copyright issues. It should also be a minimal test case focusing on the bug that renders the same way in many PDF viewers. Try to avoid binary data in streams by using the
ASCIIHexDecode simply because it makes the PDF more readable in a text editor.
To try out your new test, you can call the
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Please make sure to have
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.in files are PDF template files. PDF files contain many byte offsets that have to be kept correct or the file won't be valid. The template makes this easier by replacing the byte offsets with certain keywords.
This saves space and also allows an easy way to reduce the test case to the essentials as you can simply remove everything that is not necessary.
A simple example can be found here.
To transform this into a PDF, you can use the
$ ./testing/tools/fixup_pdf_template.py your_file.in
This will create a
your_file.pdf in the same directory as
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