Unprotected reads -> relaxed reads.
Unprotected write -> relaxed write.
The only unprotected write we had was in SkTraceEvent, which it looks like we nabbed from Chrome at some point and changed only to silence TSAN. Chrome's version uses AtomicWord / NoBarrier_Load / NoBarrier_Store, which boils down to the same as here, intptr_t / relaxed load / relaxed store.
This leaves one place where we're lying a bit to TSAN, in include/core/SkLazyPtr.h where we're doing a data-dependent consume load. We're telling TSAN it's consume, but telling any other compiler to compile it as relaxed, given how they all upgrade consume to acquire. This eliminates a barrier for us on ARM. How do you guys deal with this? Just use a consume memory order, take the hit, and hope compilers get smarter one day?
BUG=chromium:465721
No public API changes.
TBR=reed@google.com
Review URL: https://codereview.chromium.org/996763002
Reason for revert:
Reverting in case this is the cause of the non-Windows failures.
Original issue's description:
> For consistency, use our homebrew zlib everywhere possible.
>
> This switches when we build our own zlib from "just Windows" to "everyone, but
> not Android framework of course".
>
> I tested this by building DM for my Mac and for an Android bot config.
> It took minor tweaks to the GYP to get ARM builds working.
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/5a8f2257b0b0f954fb74f65e7ea3ada772ed9240TBR=scroggo@google.com,mtklein@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:
Review URL: https://codereview.chromium.org/989873002
This switches when we build our own zlib from "just Windows" to "everyone, but
not Android framework of course".
I tested this by building DM for my Mac and for an Android bot config.
It took minor tweaks to the GYP to get ARM builds working.
BUG=skia:
Review URL: https://codereview.chromium.org/971673005
Fixes Android build failures.
Android builds a custom version of libpng (instead of the one
determined by skia_libpng_static) which supplies extra needed
functions.
TBR=mtklein@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review URL: https://codereview.chromium.org/971243003
- SkDocument::CreateXPS() function added, returns NULL on non-Windows OS.
- DM: (Windows only) an XPSSink is added, fails on non-Windows OS
- DM: Common code for PDFSink::draw and XPSSink::draw are factored into
draw_skdocument static function.
- SkDocument_XPS (Windows only) implementation of SkDocument via
SkXPSDevice.
- SkDocument_XPS_None (non-Windows) returns NULL for
SkDocument::CreateXPS().
- gyp/xps.gyp refactored.
- SkXPSDevice::drawTextOnPath removed (see http://crrev.com/925343003 )
- SkXPSDevice::drawPath supports conics via SkAutoConicToQuads.
Review URL: https://codereview.chromium.org/963953002
DM:
Add a flag to use SkCodec instead of SkImageDecoder.
SkCodec:
Base class for codecs, allowing creation from an SkStream or an SkData.
An SkCodec, on creation, knows properties of the data like its width and height. Further calls can be used to generate the image.
TODO: Add scanline iterator
SkPngCodec:
New decoder for png. Wraps libpng. The code has been repurposed from SkImageDecoder_libpng.
TODO: Handle other destination colortypes
TODO: Substitute the transpose color
TODO: Allow silencing warnings
TODO: Use RGB instead of filler?
TODO: sRGB
SkSwizzler:
Simplified version of SkScaledSampler. Unlike the sampler, this object does no sampling.
TODO: Implement other swizzles.
Requires a gclient sync to pull down libpng.
BUG=skia:3257
Committed: https://skia.googlesource.com/skia/+/ca358852b4fed656d11107b2aaf28318a4518b49
(and then reverted)
Review URL: https://codereview.chromium.org/930283002
- SkDocument::CreateXPS() function added, returns NULL on non-Windows OS.
- DM: (Windows only) an XPSSink is added, fails on non-Windows OS
- DM: Common code for PDFSink::draw and XPSSink::draw are factored into
draw_skdocument static function.
- SkDocument_XPS (Windows only) implementation of SkDocument via
SkXPSDevice.
- SkDocument_XPS_None (non-Windows) returns NULL for
SkDocument::CreateXPS().
- gyp/xps.gyp refactored.
- SkXPSDevice::drawTextOnPath removed (see http://crrev.com/925343003 )
- SkXPSDevice::drawPath supports conics via SkAutoConicToQuads.
NOPRESUBMIT=true
Review URL: https://codereview.chromium.org/963953002
Reason for revert:
Breaking windows bots all over the place :(
Original issue's description:
> Add SkCodec, including PNG implementation.
>
> DM:
> Add a flag to use SkCodec instead of SkImageDecoder.
>
> SkCodec:
> Base class for codecs, allowing creation from an SkStream or an SkData.
> An SkCodec, on creation, knows properties of the data like its width and height. Further calls can be used to generate the image.
> TODO: Add scanline iterator
>
> SkPngCodec:
> New decoder for png. Wraps libpng. The code has been repurposed from SkImageDecoder_libpng.
> TODO: Handle other destination colortypes
> TODO: Substitute the transpose color
> TODO: Allow silencing warnings
> TODO: Use RGB instead of filler?
> TODO: sRGB
>
> SkSwizzler:
> Simplified version of SkScaledSampler. Unlike the sampler, this object does no sampling.
> TODO: Implement other swizzles.
>
> BUG=skia:3257
>
> Committed: https://skia.googlesource.com/skia/+/ca358852b4fed656d11107b2aaf28318a4518b49TBR=reed@google.com,djsollen@google.com,msarett@google.com,mtklein@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:3257
Review URL: https://codereview.chromium.org/972743003
DM:
Add a flag to use SkCodec instead of SkImageDecoder.
SkCodec:
Base class for codecs, allowing creation from an SkStream or an SkData.
An SkCodec, on creation, knows properties of the data like its width and height. Further calls can be used to generate the image.
TODO: Add scanline iterator
SkPngCodec:
New decoder for png. Wraps libpng. The code has been repurposed from SkImageDecoder_libpng.
TODO: Handle other destination colortypes
TODO: Substitute the transpose color
TODO: Allow silencing warnings
TODO: Use RGB instead of filler?
TODO: sRGB
SkSwizzler:
Simplified version of SkScaledSampler. Unlike the sampler, this object does no sampling.
TODO: Implement other swizzles.
BUG=skia:3257
Review URL: https://codereview.chromium.org/930283002
Partially in preparation for building libpng on Windows.
Also, this makes us consistent across platforms for PDF.
Uses the version of zlib checked into the Chromium tree.
Remove miniz, which is replaced by zlib.
Review URL: https://codereview.chromium.org/966963002
- Adds miniz.c v115_r4 (latest release) to third_party.
- Merges SkDeflateWStream into SkFlate so including "miniz.c" links
without duplicating symbols.
The only interesting code change I've made is to remove the line
fImpl->fZStream.data_type = Z_BINARY;
from SkDeflateWStream::SkDeflateWStream(). miniz doesn't have Z_BINARY
defined, and as far as I can tell, both zlib and miniz ignore data_type.
We should be able to swap skflate.gyp's dependency between zlib.gyp:zlib and
zlib.gyp:miniz at will (except of course on Windows) if we're interested in
zlib itself. I've left android framework on its own zlib. I think this all
means we can stop defining SK_NO_FLATE on Windows.
I'll leave the possible cleanup of SK_NO_FLATE itself for another time. Might
be we always want to keep this dependency optional.
CQ_EXTRA_TRYBOTS=client.skia:Test-Win8-ShuttleA-HD7770-x86-Debug-Trybot
BUG=skia:
Review URL: https://codereview.chromium.org/957323003
This path renderer converts paths to linear contours, resolves intersections via Bentley-Ottman, implements a trapezoidal decomposition a la Fournier and Montuno to produce triangles, and renders those with a single draw call. It does not currently do antialiasing, so it must be used in conjunction with multisampling.
A fair amount of the code is to handle floating point edge cases in intersections. Rather than perform exact computations (which would require arbitrary precision arithmetic), we reconnect the mesh to reflect the intersection points. For example, intersections can occur above the current vertex, and force edges to be merged into the current vertex, requiring a restart of the intersections. Splitting edges for intersections can also force them to merge with formerly-distinct edges in the same polygon, or to violate the ordering of the active edge list, or the active edge state of split edges.
BUG=skia:
Review URL: https://codereview.chromium.org/855513004
Fix path bugs exposed by the path fuzzer.
Changes to existing gm and samplecode files defer their calls to construct
SkPath objects until the first draw instead of at test initialization.
Add an experimental call to SkPath to validate the internal SkPathRef.
Fix SkPath::addPoly to set the last moveto after adding a close verb.
Fix stroke to handle failures when computing the unit normal.
Add a unit test for the unit normal failure.
R=reed@google.com
Review URL: https://codereview.chromium.org/953383002
Removes the disabled SSE2 optimization of ColorRect32 and deletes
the two files containing the code.
Measured on both Core Haswell and Atom Silvermont, and only got
some miniscule improvement compared to the default implementation.
Also tried to write a new, ultimate, version of this optimization,
but only got ~5% improvement on ColorRect32-heavy tests.
Signed-off-by: Henrik Smiding <henrik.smiding@intel.com>
Review URL: https://codereview.chromium.org/957433002
SK_SUPPORT_LEGACY_GET_PIXELS_ENUM just set a \#define to convert
onGetPixelsEnum
to
onGetPixels
Now that Chrome has been updated to override onGetPixels, there is no
need for the define.
BUG=skia:3257
Review URL: https://codereview.chromium.org/933853004
