Add an interface to decode frames beyond the first in SkCodec, and
add an implementation for SkGifCodec.
Add getFrameData to SkCodec. This method reads ahead in the stream
to return a vector containing meta data about each frame in the image.
This is not required in order to decode frames beyond the first, but
it allows a client to learn extra information:
- how long the frame should be displayed
- whether a frame should be blended with a prior frame, allowing the
client to provide the prior frame to speed up decoding
Add a new fields to SkCodec::Options:
- fFrameIndex
- fHasPriorFrame
The API is designed so that SkCodec never caches frames. If a
client wants a frame beyond the first, they specify the frame in
Options.fFrameIndex. If the client does not have the
frame's required frame (the frame that this frame must be blended on
top of) cached, they pass false for
Options.fHasPriorFrame. Unless the frame is
independent, the codec will then recursively decode all frames
necessary to decode fFrameIndex. If the client has the required frame
cached, they can put it in the dst they pass to the codec, and the
codec will only draw fFrameIndex onto it.
Replace SkGifCodec's scanline decoding support with progressive
decoding, and update the tests accordingly.
Implement new APIs in SkGifCodec. Instead of using gif_lib, use
GIFImageReader, imported from Chromium (along with its copyright
headers) with the following changes:
- SkGifCodec is now the client
- Replace blink types
- Combine GIFColorMap::buildTable and ::getTable into a method that
creates and returns an SkColorTable
- Input comes from an SkStream, instead of a SegmentReader. Add
SkStreamBuffer, which buffers the (potentially partial) stream in
order to decode progressively.
(FIXME: This requires copying data that previously was read directly
from the SegmentReader. Does this hurt performance? If so, can we
fix it?)
- Remove UMA code
- Instead of reporting screen width and height to the client, allow the
client to query for it
- Fail earlier if the first frame AND screen have size of zero
- Compute required previous frame when adding a new one
- Move GIFParseQuery from GIFImageDecoder to GIFImageReader
- Allow parsing up to a specific frame (to skip parsing the rest of the
stream if a client only wants the first frame)
- Compute whether the first frame has alpha and supports index 8, to
create the SkImageInfo. This happens before reporting that the size
has been decoded.
Add GIFImageDecoder::haveDecodedRow to SkGifCodec, imported from
Chromium (along with its copyright header), with the following changes:
- Add support for sampling
- Use the swizzler
- Keep track of the rows decoded
- Do *not* keep track of whether we've seen alpha
Remove SkCodec::kOutOfOrder_SkScanlineOrder, which was only used by GIF
scanline decoding.
Call onRewind even if there is no stream (SkGifCodec needs to clear its
decoded state so it will decode from the beginning).
Add a method to SkSwizzler to access the offset into the dst, taking
subsetting into account.
Add a GM that animates a GIF.
Add tests for the new APIs.
*** Behavior changes:
* Previously, we reported that an image with a subset frame and no transparent
index was opaque and used the background index (if present) to fill the
background. This is necessary in order to support index 8, but it does not
match viewers/browsers I have seen. Examples:
- Chromium and Gimp render the background transparent
- Firefox, Safari, Linux Image Viewer, Safari Preview clip to the frame (for
a single frame image)
This CL matches Chromium's behavior and renders the background transparent.
This allows us to have consistent behavior across products and simplifies
the code (relative to what we would have to do to continue the old behavior
on Android). It also means that we will no longer support index 8 for some
GIFs.
* Stop checking for GIFSTAMP - all GIFs should be either 89a or 87a.
This matches Chromium. I suspect that bugs would have been reported if valid
GIFs started with "GIFVER" instead of "GIF89a" or "GIF87a" (but did not decode
in Chromium).
*** Future work not included in this CL:
* Move some checks out of haveDecodedRow, since they are the same for the
entire frame e.g.
- intersecting the frameRect with the full image size
- whether there is a color table
* Change when we write transparent pixels
- In some cases, Chromium deemed this unnecessary, but I suspect it is slower
than the fallback case. There will continue to be cases where we should
*not* write them, but for e.g. the first pass where we have already
cleared to transparent (which we may also be able to skip) writing the
transparent pixels will not make anything incorrect.
* Report color type and alpha type per frame
- Depending on alpha values, disposal methods, frame rects, etc, subsequent
frames may have different properties than the first.
* Skip copies of the encoded data
- We copy the encoded data in case the stream is one that cannot be rewound,
so we can parse and then decode (possibly not immediately). For some input
streams, this is unnecessary.
- I was concerned this cause a performance regression, but on average the
new code is faster than the old for the images I tested [1].
- It may cause a performance regression for Chromium, though, where we can
always move back in the stream, so this should be addressed.
Design doc:
https://docs.google.com/a/google.com/document/d/12Qhf9T92MWfdWujQwCIjhCO3sw6pTJB5pJBwDM1T7Kc/
[1] https://docs.google.com/a/google.com/spreadsheets/d/19V-t9BfbFw5eiwBTKA1qOBkZbchjlTC5EIz6HFy-6RI/
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- Support ObjC / ObjC++
- Build SDL on Mac.
- Build viewer on Mac.
Patched from Jim's CL.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=3760
Change-Id: I12663f2ed2969e22f51aefed560fbc22b2524167
Reviewed-on: https://skia-review.googlesource.com/3760
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
We check this define to know which intrinsics we can call safely. The -msse flags set it for us on non-MSVC, but MSVC has no such switch. We do this in GYP (and Chrome's GN) too. No need for any defines on :avx or :hsw targets... the /arch:AVX and /arch:AVX2 do set SK_CPU_SSE_LEVEL for us.
Most directly, this means things like Sk4f::thenElse() will now use blendps when compiled into SkOpts_sse41.cpp.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=3666
Change-Id: Ie80a8b8e5544250b45cfe51c40604fade06b3ef9
Reviewed-on: https://skia-review.googlesource.com/3666
Commit-Queue: Mike Klein <mtklein@chromium.org>
Reviewed-by: Matt Sarett <msarett@google.com>
BUG=skia:
Change-Id: Ia0c10db49905fc5a3bdf424c38576e1a6cf09ecf
Reviewed-on: https://skia-review.googlesource.com/3606
Reviewed-by: Mike Klein <mtklein@chromium.org>
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Debugger is the last user of the deprecated SkPaintFilterCanvas
constructor. Stop using it and remove the constructor.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=3268
Change-Id: I3e9180d48abdf86cb2c05bd8d95acabcdaa70427
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Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Mike Reed <reed@google.com>
CQ_INCLUDE_TRYBOTS=master.client.skia.compile:Build-Win-MSVC-x86_64-Release-Vulkan-Trybot;master.client.skia:Test-Win10-MSVC-ShuttleA-GPU-GTX660-x86_64-Debug-Vulkan-Trybot,Perf-Win10-MSVC-ShuttleA-GPU-GTX660-x86_64-Release-Vulkan-Trybot,Perf-Win10-MSVC-ShuttleA-GPU-GTX660-x86_64-Debug-Vulkan-Trybot
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Change-Id: I7012719fff66778488589ab9c15fd2fa2a109cd1
Reviewed-on: https://skia-review.googlesource.com/3421
Commit-Queue: Mike Klein <mtklein@chromium.org>
Reviewed-by: Greg Daniel <egdaniel@google.com>
I really wanted this today, so I got it working again.
Change-Id: I1a37d48d4806198b55c59d1df5ff15a03500195f
Reviewed-on: https://skia-review.googlesource.com/3383
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>
Just a simple oversight... this should make Ganesh work.
CQ_INCLUDE_TRYBOTS=master.client.skia.compile:Build-Win-MSVC-x86-Debug-Exceptions-Trybot,Build-Win-MSVC-x86_64-Debug-GN-Trybot,Build-Win-MSVC-x86_64-Release-GN-Trybot
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Change-Id: I90353732a137d004b884cea75f1bd722ede24888
Reviewed-on: https://skia-review.googlesource.com/3382
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
CQ_INCLUDE_TRYBOTS=master.client.skia.compile:Build-Win-MSVC-x86-Debug-GDI-Trybot,Build-Win-MSVC-x86-Release-GDI-Trybot;master.client.skia:Perf-Win-MSVC-GCE-CPU-AVX2-x86_64-Debug-GDI-Trybot,Test-Win-MSVC-GCE-CPU-AVX2-x86_64-Debug-GDI-Trybot,Test-Win-MSVC-GCE-CPU-AVX2-x86_64-Release-GDI-Trybot
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=3324
Change-Id: I3ff2f5d16de9fff7ed77fa5127b96bef55bef957
Reviewed-on: https://skia-review.googlesource.com/3324
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
I haven't explicitly confirmed this, but it's likely that today's r12b -> r13 upgrade made this possible.
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GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=3241
Change-Id: I4d19ad48f387d48e0fa4a9f1637c67eb6e1ba4ae
Reviewed-on: https://skia-review.googlesource.com/3241
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
I think I'm now at the point of needing to just resolve missing symbols.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=3201
Change-Id: Ib908bd72c23f2d4bafd17182eedcb2fc85c422e5
Reviewed-on: https://skia-review.googlesource.com/3201
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
Haswell brought a whole slew of handy new instructions for us (AVX2, FMA, BMI1+BMI2) and also feature F16C, which came one generation earlier on Ivybridge. We work with integers often enough that we really want to target AVX2 instead of AVX, and this means it's pretty practical to ask for all those other goodies along with it.
Chrome's GN files and Google3's BUILD file will need an update, before or after this CL.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2840
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot
Change-Id: I826daf77b5104664c5d31ddaabee347e287b87a2
Reviewed-on: https://skia-review.googlesource.com/2840
Commit-Queue: Mike Klein <mtklein@chromium.org>
Reviewed-by: Herb Derby <herb@google.com>
Unlike nanobench this tool has no purpose when built in Debug mode.
Just don't let it happen.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2718
Change-Id: Iaa7b8c44d46024485d4f5ce3d9c3e33d865b99d7
Reviewed-on: https://skia-review.googlesource.com/2718
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
Angle's existing GN files only work in Chrome, so I've written a new one.
This won't work on Windows, but our GN build doesn't work on Windows anyway. So this CL is an attempt to get a ahead of that curve on ANGLE. It looks large but fairly straightforward.
Now working on Linux:
$ gn gen angle --args=skia_use_angle=true
$ ninja -C angle
$ angle/dm --config angle-gl --src gm -w dm-out
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2361983002
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I trimmed the libmicrohttpd sources and defines down to the minimum needed to build and run. This builds and runs on Linux and Android for me.
Request.h was missing an include for SkTypes.h, which supplies the default for SK_GPU_SUPPORTED if not otherwise defined.
To build on Android, exit() -> _exit().
build.py was unused.
BUG=skia:
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NOTREECHECKS=true
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I was just lazy disabling this before. It turns out to not be difficult.
This gets us slightly better testing out of the NoGPU bot, as we now know
not only that Skia compiles, but also that DM and nanobench can link (and
thus that Skia's got enough compiled in it to be a coherent library).
skpbench requires GPU support.
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is_skia_standalone will be defined and set to true iff we're using our
standalone BUILDCONFIG.gn. Any other build (Fuchsia, Chrome, Pdfium)
will have their own BUILDCONFIG.gn, which presumably does not define
is_skia_standalone.
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Chromium needs to be able to set up their build such that the globals
continue existing but the SkFontMgr::Factory can be defined separately.
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skpbench is a benchmarking suite for skps that aims to generate 100%
repeatable results. The initial commit consists of three parts:
skpbench
A minimalist program whose sole purpose is to open an skp file,
benchmark it on a single config, and exit. No tiling, looping, or
other fanciness is used; it just draws the skp whole into a size-
matched render target and syncs the GPU after each draw.
Limiting the entire process to a single config/skp pair helps to keep
the results repeatable.
skpbench.py
A wrapper to execute the skpbench binary with various configs and skps.
It also monitors the output in order to filter out and re-run results
with an unacceptable stddev.
In the future this script will lock down and monitor clocks and
temperatures.
parseskpbench.py
A utility for parsing skpbench output into a spreadsheet.
BUG=skia:
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Android API >= 24 implies Vulkan support, so we can have a more useful default here than 'false'. If for some reason you wanted to turn it off, you can still override skia_use_vulkan.
The defined(ndk_api) guards other users of our GN files (Fuchsia) who may not have an ndk_api argument defined in their BUILDCONFIG.gn.
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... and use it to control debug symbols and SK_ALLOW_STATIC_GLOBAL_INITIALIZERS.
This will most directly have the effect of disabling GLProgramsTest and a bunch
of similar failing Vk tests on Android.
Hopefully this makes the N7 trybot go green, keeping the N5 trybot green. Just running the N10 for fun.
(is_official_build is how Chrome terms this sort of ReleaseForReal build.)
BUG=skia:
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Android's the easiest place to start supporting Vulkan, so it's up first.
ndk_api becomes user-specifiable so that the Vulkan bots can kick it up
to 24, the first release supporting Vulkan. The defaults remain the same:
18 for 32-bit and 21 for 64-bit, the first release supporting 64-bit.
To test this, I set ndk_api=24 and skia_use_vulkan=true in GN, then
$ ninja -C out dm; and droid out/dm --config vk --src gm
Seems to work! Bot scripts to follow.
BUG=skia:
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