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140 lines
4.4 KiB
Plaintext
140 lines
4.4 KiB
Plaintext
This is the ANGLE project, from http://code.google.com/p/angleproject/
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Current revision: r1267
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== Applied local patches ==
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In this order:
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angle-renaming-debug.patch
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rename debug.h to compilerdebug.h to avoid conflict in our makefiles
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angle-renaming-preprocessor-diagonostics.patch
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rename one of the two Diagnostics.cpp to avoid conflict in our makefiles
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angle-renaming-preprocessor-directivehandler.patch
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rename one of the two DirectiveHandler.cpp to avoid conflict in our makefiles
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angle-enforce-readpixels-spec.patch
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see bug 724476
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angle-impl-read-bgra.patch
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see bug 724476
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gfx/angle/angle-long-identifier-hash-spooky.patch
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see bug 676071
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angle-abort-on-oom-in-preprocessor.patch
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see bug 680840. Probably not useful anymore now that we're on the new
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preprocessor, but it doesn't hurt to keep it around a bit longer.
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angle-faceforward-emu.patch
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See bug 771406. Adds emulation for faceforward(float,float,float),
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which is needed to prevent crashing on Mac+Intel.
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angle-r1278.patch
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Imports ANGLE r1278, which fixes ANGLE bug 350, a crasher.
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In addition to these patches, the Makefile.in files are ours, they're not present in
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upsteam ANGLE. Therefore, changes made to the Makefile.in files should not be stored
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in the local .patch files.
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== How to update this ANGLE copy ==
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1. Unapply patches
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Unapply them in reverse order, so iterate over the above list of applied patch
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starting from the bottom. You most likely want to record these patch-unapply
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operations as individual patches themselves, in order to re-apply patches later.
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$ cd /path/to/mozilla-central
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$ patch -p1 -R < gfx/angle/angle-some-bug-fix.patch
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$ hg qnew unapply-angle-some-bug-fix.patch
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2. Apply diff with new ANGLE version
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Check at the top of this file what ANGLE revision we currently have. Let's say it's
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r123. Check at the ANGLE Web site what recent revisions look like to figure what
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revision seems safe. Let's say we want r456.
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$ cd
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$ svn checkout http://angleproject.googlecode.com/svn/trunk/ angleproject
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$ cd angleproject
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$ svn diff -r 123:456 > ~/angle-diff-from-123-to-456
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$ cd /path/to/mozilla-central
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$ cd gfx/angle
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$ patch -p0 < ~/angle-diff-from-123-to-456
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$ cd ../..
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$ hg status
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# hg add any new ANGLE files under gfx/angle
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$ hg qnew angle-diff-from-123-to-456
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3. Reapply patches
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You may have to skip reapplying certain patches there, for example if they have
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been integrated into ANGLE since our last update. The short patch descriptions above
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in this file should help you make that decision.
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If you have recorded the individual patch unapply operations in step 1 as separate
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Mercurial patches, this will be easy, just apply the inverse patches now, in reverse
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order:
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$ patch -p1 -R < .hg/patches/unapply-angle-some-bug-fix.patch
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$ hg status
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# hg add any new ANGLE files under gfx/angle
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$ hg qnew angle-some-bug-fix.patch
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Note that here you need to proceed in the reverse order of what you did in step 1.
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4. Update our Makefiles
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Open your ANGLE diff file (~/angle-diff-from-123-to-456), search for GYP files
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(e.g. build_angle.gyp), it's easy-to-read JSON. It may list additions of new files,
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or removal of old files. You have to reflect this in our Makefiles:
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gfx/angle/Makefile.in
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gfx/angle/src/libEGL/Makefile.in
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gfx/angle/src/libGLESv2/Makefile.in
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The first one is our main Makefile. It has basically the ANGLE shader compiler.
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Changes there will typically have to be applied also to the two other Makefiles.
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These two other Makefiles are Windows-only and build the ANGLE GLES2-on-top-of-D3D
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implementation.
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5. Update patch files
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Something like:
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$ cp .hg/patches/angle-some-bug-fix.patch gfx/angle
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For each patch that you reapplied.
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If a patch was removed (not reapplied), remove the corresponding patch file.
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6. Update this README.mozilla
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You'll have to update at least the ANGLE revision number and probably the patch
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list as well.
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7. Push to Try
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Make sure to test both Windows and non-Windows, and enable mochitest-1 in your
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Try options. You may want reftest as well, as we have WebGL reftests.
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8. Get reviews.
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Typically, you would get review on your Makefiles patch, and any
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new patches that you need to add to get this update to work.
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You do not need a review for the ANGLE diff itself and for trivial updates of
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existing patches.
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== Visual Studio Solution Files ==
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Ignore these. We don't use them anymore. We use custom Makefiles.
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== Generated parser code==
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Don't bother about that anymore. The parser is now generated and included in the ANGLE svn repo.
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