This entire API existed, but was unused (no longer connected to
drawVertices or runtime effects).
In theory, we could further simplify some of the matrix providers, but
more importantly - I have serious doubts about the correctness of
localToDeviceHitsPixelsCenters for most of them.
Change-Id: If5af182015dd96e5ed3353a117223e8dbbe17097
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/481683
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
This will let us use it elsewhere.
Change-Id: I39a5dc0651bee8fbd5fa7302e34a3a79f7efbd3d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/481736
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
The current system short circuits out when an SkTextBlob will draw
anything based on its bounds, the bounds of the clip, and the state
of the paint.
A similar thing needs to happen, but the clip needs to be ignored.
Return the nullptr if the SkTextBlob would never draw to signal that
the Slug can be ignored.
Bug: chromium:1277583
Change-Id: I2d6641e03c88ae5f160c479c9e715ad8dc9f65b3
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/481592
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Herb Derby <herb@google.com>
No functional change.
Bug: skia:12720
Change-Id: I649bc258c9a6b4973cdd9d1727827cdaf89b43ad
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/481280
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
This reverts commit 873a39ebd1.
Reason for revert: rework #2 of trace design, DebugTrace is back
Original change's description:
> Remove newly-added SkSL::DebugTrace base class.
>
> Slight rework of the SkRuntimeEffect trace design means we won't expose
> any debug-trace class at the public level, so an interface base class
> doesn't add value after all.
>
> Change-Id: I82739e9c5ba5ce5c7a63793ec0c09a50ab19fbb3
> Bug: skia:12708
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/480776
> Auto-Submit: John Stiles <johnstiles@google.com>
> Commit-Queue: Brian Osman <brianosman@google.com>
> Reviewed-by: Brian Osman <brianosman@google.com>
Bug: skia:12708
Change-Id: I02d51f83c7a3384b1eaa74ecf1a80b5f6e4fd774
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/481196
Auto-Submit: John Stiles <johnstiles@google.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Slight rework of the SkRuntimeEffect trace design means we won't expose
any debug-trace class at the public level, so an interface base class
doesn't add value after all.
Change-Id: I82739e9c5ba5ce5c7a63793ec0c09a50ab19fbb3
Bug: skia:12708
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/480776
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
SkRuntimeEffect needs an API for generating debug traces. This means
that we will need references to debug traces inside a public header.
Rather than reference SkVMDebugInfo directly, we now have a simpler
base class for debug traces. This is better suited to landing in
include/.
I've also renamed SkVMDebugInfo to SkVMDebugTrace for consistency, since
it now contains all the trace data. (When it was first added, it only
had the slot info.)
Change-Id: Ibaa4dedf9a17b9462b4f233a28a7b875d0317892
Bug: skia:12708
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/480356
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Change-Id: I7f0998f159e0bc3f32f813f8150f4f12477760cb
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/479056
Commit-Queue: Greg Daniel <egdaniel@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
Auto-Submit: Greg Daniel <egdaniel@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
This also hides the ctors for the respective classes so you can't just
arbitrarily make one outside of the factories.
Change-Id: If31ac8ea9b54c9e10c162081251e77d7e9d07147
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/478956
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
This was enabled by moving the iPhones off of the old RPI2 hosts.
This reverts commit 04cd6fba97.
This reverts commit a726978ae7.
Bug: chromium:1256037
Change-Id: I35069089aa39baf62a18235c8d0514923f327c53
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/477987
Reviewed-by: Ravi Mistry <rmistry@google.com>
Commit-Queue: Eric Boren <borenet@google.com>
Bug: skia:12633
Change-Id: Ida78c4145423376dc0267096a1d758b74144fd0c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/477139
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
A GrSlug encapsulates an SkTextBlob at a certain origin, using a
given paint. Once a blob is converted to a slug, it can be drawn
through a canvas and will obey the canvas's mapping and clipping.
The glyphs encoded as mask will be transformed using bi-linear
interpolation. The other glyphs type will draw as they normally
would. This allows drawing an SkTextBlob using the original
glyph data from the cache.
Bug: chromium:1254726
Change-Id: I1b42c94966d22865922ce991ae6ed13b51360618
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/471157
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Herb Derby <herb@google.com>
Change-Id: I7fa9b4da48f993143ade3b8030e2c67831cf0ffd
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/475257
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
I should have realized the fuzzer would find this assert when I added
it. Now the front-end rejects these layout qualifiers on both struct
fields and interface block fields. LayoutInInterfaceBlock.sksl is a
reformatted version of the fuzzer input. LayoutInStruct is hand-crafted
to trigger the same failure on a different code path. Both would
previously assert in the SPIRV generator. Now, neither one gets that
far.
Bug: oss-fuzz:41347
Change-Id: Iff69d8f5482da7b772e9331c4fd2d58e89813c46
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/476396
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Moves Attribute into its own header. I did not move AttributeSet/Iter
out of GraphicsPipelineDesc because RenderStep should be able to just
rely on SkSpan<Attribute>. Since they are fixed definitions, there
shouldn't be a need to support skipping over uninitialized attrs. Once
GraphicsPipelineDesc just points to a RenderStep, AttributeSet/Iter can
be deleted.
Bug: skia:12466
Change-Id: I3b01b6283669fc02dc9cd0521bb236a9d0daa5eb
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/474136
Auto-Submit: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Change-Id: I94ded218e822fe50687e1efff7d46bcc4c1f1293
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/471780
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
Bug: skia:12662
Change-Id: Ic2924257fce3ea9a2df5e49d0ab26ad085693d30
Cq-Include-Trybots: luci.skia.skia.primary:Canary-Flutter
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/473676
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Introduce the GrSlug that encapsulates an SkTextBlob along with
the origin, and paint to create a GrSlug. You can draw the slug
using the canvas, and it will obey the canvas's clip and mapping.
See the full working prototype at:
https://skia-review.googlesource.com/c/skia/+/471157/17
Change-Id: I5731dce3dea316ad144baead154a68c8e4c5db9a
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/474040
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Bug: skia:12524
Change-Id: I2664c8ea707a40724bcf916e907fe28d1fa276d6
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/474357
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Exceptionally large control points might require us to chop the path
very deeply. This CL converts the recursive chopping to loop with a
stack of control points on the heap, in order to avoid the risk of
stack overflow. It also adds a bail condition to avoid getting stuck
in endless recursion due to fp32 precision issues.
Bug: chromium:1266446
Change-Id: I005be4bc29de51d3c89f04b5d6c553a921a92aa3
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/473197
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
This is a first step in making GrShaderCaps more general so we can use
it in Graphite.
Change-Id: I7fc874e5df8dba2cef05421840a4019e5499ab59
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/473000
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
This fails exactly as it should, but we had no test for it.
Change-Id: I0aa3307c444f2c9bc3512ff43b784a56a7c09856
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/472449
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Mysteriously, I had written a test which put arrays of void inside a
struct, but had neglected to include the non-array case. It causes an
okay-not-great error (referring to void as an "opaque type").
Change-Id: Id20a9d3512d29aecea81d46877dce708b7b2f973
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/472450
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
This reverts commit 12e786730f.
Reason for revert: missing CIPD package on armv6l
Original change's description:
> [python3] More Recipes -> Python 3 fixes
>
> - Set environment variables to force usage of Python 3 in more places
> - Fix more compatibility issues
> - Mark recipes as only supporting Python 3
> - Includes a roll of the infra code
>
> Change-Id: I24e3827a6402c454bdc9467d28864d360632f9e6
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/470303
> Reviewed-by: Ravi Mistry <rmistry@google.com>
> Commit-Queue: Eric Boren <borenet@google.com>
Change-Id: If7b6fcb7838ac053af2c5eb45a7a1ac4aed340a5
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/472736
Auto-Submit: Eric Boren <borenet@google.com>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
We should, of course, detect this and report an error.
Change-Id: I42b3be6e714a1f367d3251842506a384f2afe019
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/472447
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
- Set environment variables to force usage of Python 3 in more places
- Fix more compatibility issues
- Mark recipes as only supporting Python 3
- Includes a roll of the infra code
Change-Id: I24e3827a6402c454bdc9467d28864d360632f9e6
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/470303
Reviewed-by: Ravi Mistry <rmistry@google.com>
Commit-Queue: Eric Boren <borenet@google.com>
This allows us to dump a trace to disk and read it back in again later.
This uses JSON to ensure a debug trace will stay readable across
platforms, builds, etc.
Change-Id: I4e5011b5023cf14f422ab130e9697c125c2b6e45
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/471765
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
This is required by the ES2 standard: http://screen/Qysv4fPW5r5LA9e
This actually already worked fine because `strtoull` natively recognizes
octal values without any work on our part. However, we lacked a test.
Change-Id: I3033de899918abe99c63a9b7b79bd4c3374ee315
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/471716
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
We should only be using include/private for types that actually are
needed in include/ files. I moved everything that was just in src to
new src/*Types.h files. This actually left nothing in GraphiteTypesPriv
for now, so I deleted it. If we actually need private types that are
part of include/ we can add it back later.
Bug: skia:12466
Change-Id: I180fc2032afd47bc6c5e8b9ccd4954b5d2451fc7
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/471758
Reviewed-by: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
There are definitely some missing getters on other functions we'll need
on BackendTexture. But for this CL I just wanted to get the basics and
ctor working. Other functions can be added as they are needed.
Bug: skia:12633
Change-Id: I668828138df943a432efcec6b1134756e681a582
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/469820
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
The only type of expressions that getConstantSubexpression could ever
return are Literal and nullptr. getConstantValue now returns an
optional<double>; nullopt indicates a non-constant value in the slot.
This simplifies most use cases, and allows us to get rid of some extra
"zero" and "one" Literal objects in some of our Constructor classes.
This change fixes a recent fuzzer issue. The fuzzer had discovered that
calling `getConstantSubexpression` on a ConstructorCompoundCast that
contained a compile-time-constant value would return literals of the
wrong type (the cast was not applied). By nesting repeated matrix casts,
this type confusion could be turned into an assertion.
Change-Id: Icee69219e6db2822ffdfab4e5ccdaff54584a4b6
Bug: oss-fuzz:41000
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/471376
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
This is needed for enabling Skia's Vulkan backend for Flutter on Windows and iOS 9, as the standard libraries in both of these contexts don't have `std::shared_mutex`.
When disabled on Windows, VMA falls back to using Win32 SRWLock.
The `vulkan.h` import in `vk_mem_alloc.h` which would normally import `windows.h` is commented out for Skia, and so the relevant symbols need to be declared before importing `vk_mem_alloc.h`.
Relevant Flutter Engine PR: https://github.com/flutter/engine/pull/29520
Change-Id: I2b1a621417155071b21e5c6d3b5ccc375c92a622
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/469207
Reviewed-by: Greg Daniel <egdaniel@google.com>
Auto-Submit: Brandon DeRosier <bdero@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
This is a reland of 9613060bdf
Original change's description:
> Implement batching for convex tessellated paths
>
> Moves the view matrix transformation onto the CPU (when local coords
> are not used), and plumbs a color attrib through the tessellation
> patches.
>
> Bug: skia:12524
> Change-Id: Ic4740048b4fc85cb18e7235a7754d57762db3daf
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/468997
> Reviewed-by: Michael Ludwig <michaelludwig@google.com>
> Commit-Queue: Chris Dalton <csmartdalton@google.com>
Bug: skia:12524
Change-Id: I77cd079d8921b224925bd2f7364c564822886d61
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/470436
Commit-Queue: Robert Phillips <robertphillips@google.com>
Auto-Submit: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
We never used it internally, but the shaders used by Filament rely on
it. It doesn't exist in ES2 so this doesn't affect Runtime Effects.
Change-Id: Idb2afb15ff160b950ad02101bf6381a5d5c56468
Bug: skia:12635, skia:11209
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/470156
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Replaced by Graphite.
Change-Id: Iac0ba212b078904a591677c9ce839a90562d0240
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/470305
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
This reverts commit 9613060bdf.
Reason for revert: assertion failure on ANGLE
Original change's description:
> Implement batching for convex tessellated paths
>
> Moves the view matrix transformation onto the CPU (when local coords
> are not used), and plumbs a color attrib through the tessellation
> patches.
>
> Bug: skia:12524
> Change-Id: Ic4740048b4fc85cb18e7235a7754d57762db3daf
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/468997
> Reviewed-by: Michael Ludwig <michaelludwig@google.com>
> Commit-Queue: Chris Dalton <csmartdalton@google.com>
TBR=egdaniel@google.com,robertphillips@google.com,csmartdalton@google.com,michaelludwig@google.com,skcq-be@skia-corp.google.com.iam.gserviceaccount.com
Change-Id: Ie086376656777bb167075a9822d8c702cc7e41ec
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:12524
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/470296
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
Moves the view matrix transformation onto the CPU (when local coords
are not used), and plumbs a color attrib through the tessellation
patches.
Bug: skia:12524
Change-Id: Ic4740048b4fc85cb18e7235a7754d57762db3daf
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/468997
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
We should support constant-expressions involving matrices (GLSL ES2
does, WebGL does). We currently don't. We do properly report out-of-
range indexing, but we don't optimize away valid matrix index
expressions or allow matrices to be indexed in a constant-expression
context.
Change-Id: If58aa4c5f15abef421a412957072f3617b4176df
Bug: skia:12472
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/469818
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Previously, we didn't have tests which leveraged constant-evaluation of
array indexing (because we didn't support it), and our test files
commingled constant-indexing into vectors with constant-indexing into
arrays.
The test files now separate vector- and array-handling into separate
tests, and a ton of new cases have been added to ArrayFolding. The
ArrayFolding tests now require constant-evaluation of array indexing,
so they fail in this CL, but will be fixed in the followup CL.
Change-Id: I3b663e743d97d6db80627bc9b7808f88c99917a7
Bug: skia:12472
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/469528
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Previously, this code assumed that IndexExpression::Convert had done
range checking and that it was safe to access the base expression at
the passed-in index. The inliner violates this assumption, because it
can replace unknowns (where out-of-range access is undefined but non-
fatal) with knowns (where out-of-range access is forbidden).
We now do range-checking inside IndexExpression::Make and report the
error cleanly, instead of asserting inside of Swizzle::Make due to an
invalid component index.
Change-Id: If0f31b1f694bcc2a875d124f70be311d6634c77b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/469535
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Previously, a dangling type or function reference would be eliminated
silently with optimizations on, or would assert when optimizations were
off.
Change-Id: Ib2e273b6f069724e8872c9cb97351b647b875a62
Bug: skia:12472
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/469525
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
The ExpressionStatement currently eliminates dangling references without
reporting them as an error. This happens due to optimization; these
expressions (being meaningless) have no side effects, and so the
optimizer replaces them with Nop. When the optimizer is off, these
programs trigger an assert:
https://osscs.corp.google.com/skia/skia/+/main:src/sksl/SkSLAnalysis.cpp;l=582;drc=e7a953524787e3bd0c437ec52de4e40986689825
A followup CL will fix ExpressionStatements so that they report
incomplete expressions as an error.
Change-Id: Ica49166032e670749fc1b4e7a869fbab03364d4f
Bug: skia:12472
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/469524
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Also updates MtlRenderPipeline to be MtlGraphicsPipeline to match the
type it extends, although we could choose to have it stay matched with
the backend object (MTLRenderPipeline) that it wraps instead.
Bug: skia:12466
Change-Id: Ida118e68a93d737d21edca15a59f5e64e17b5fd0
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/467780
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
Also removes the path-specific functions now that it only maps points.
Bug: skia:12524
Change-Id: I63c0707b8b7814c93f472c33f108319774192cbd
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/468038
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Moves the earlier, non-recursive chopping code from the wedge
tessellator to a shared location and shares it with the curve
tessellator. Creates a 'PatchAttribs' enum to control which data gets
written out with tessellation patches, including a 'kFanPoint' for
wedges.
Bug: skia:12524
Change-Id: I79b84bf603e80aa1e8732939c60a53c3604cd679
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/468016
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Much like http://review.skia.org/467759, this CL defensively guards
against programs which consume more space than is reasonable. Globals
exist outside of functions, so they wouldn't be caught by the stack size
checks.
Change-Id: I035f27d57bc329508820a729a1e367ecaadfe156
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/467760
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Functions that declare variables totaling more than 100,000 slots will
now generate an error.
This is only a partial mitigation to the problem, as a sophisticated
attack could still chain/nest multiple functions together to consume
extremely large amounts of stack. However, this mitigation is still more
sophisticated than our peers; both WebGL and glslang are susceptible to
similar problems, and in the general case (ES3+ with full flow control)
it's intractable.
Change-Id: I153c75267c017a23f59fe9e59f6e391197ee6101
Bug: oss-fuzz:40304, oss-fuzz:40694
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/467759
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
