This reverts commit 0426947243.
Reason for revert: unblock chrome roller
Original change's description:
> Centralize geometry processor vertex shader transform code
>
> GrGLSLGeometryProcessors no longer have to call emitTransforms() in
> their onEmitCode() function. Instead, the GpArgs struct allows them to
> set a GrShaderVar that holds the computed or explicitly provided local
> coordinates in the vertex shader.
>
> The base GrGLSLGeometryProcessor now automatically uses that to collect
> all of the transforms that can then be lifted out of FPs to the vertex
> shader, and base their computation on the GP provided local coordinate.
>
> As part of this, there is no more built-in magic concatenation of a
> local matrix / inverse view matrix to these coordinate transforms. GP
> implementations that relied on this now manage their own uniform for this
> matrix and compute the local coordinate before assigning to GpArgs.
>
> The base GrGLSLGeometryProcessor is updated to provide helpers for this
> pattern.
>
> Bug: skia:10396
> Change-Id: I56afb3fff4b806f6015ab13626ac1afde9ef5c2b
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297027
> Commit-Queue: Michael Ludwig <michaelludwig@google.com>
> Reviewed-by: Brian Osman <brianosman@google.com>
TBR=bsalomon@google.com,brianosman@google.com,michaelludwig@google.com
Change-Id: I203b7c72591d39b159e0405716fe8cdc28b083af
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:10396
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297917
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
Previously, DM destroyed a large number of non-trivial objects at
shutdown time. Because no shutdown order is promised across translation
units by the standard, this can lead to bugs which only reproduce
capriciously, at the whim of the linker.
http://go/totw/110#the-fix-safe-initialization-no-destruction
"Destruction issues are usually solved by defining your static data
in such a way that the destructor never runs. The most common way to do
this is to heap allocate the static object - pointers don't have
destructors."
http://go/cstyle#decision_on_destruction
"Global and static variables that use dynamic initialization or have
non-trivial destructors create complexity that can easily lead to hard-
to-find bugs. Dynamic initialization is not ordered across translation
units, and neither is destruction (except that destruction happens in
reverse order of initialization). When one initialization refers to
another variable with static storage duration, it is possible that this
causes an object to be accessed before its lifetime has begun (or
after its lifetime has ended). Moreover, when a program starts threads
that are not joined at exit, those threads may attempt to access objects
after their lifetime has ended if their destructor has already run."
Change-Id: I54eedcd813295a23923deb925b0ca2adfff69f7d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297872
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Some users of Skia want to build these with -I instead of -isystem, and
until now we've piggybacked it on werror, but it's still kind of
annoying to see warnings even if they're not fatal.
Change-Id: I5a349b2571adc2f94c75dc17317666ddc2dec373
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297788
Commit-Queue: Mike Klein <mtklein@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Reviewed-by: John Stiles <johnstiles@google.com>
Change-Id: I83268cf9daf62c0bab831cf5340b85f31cc941b0
Bug: skia:9935
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/295834
Commit-Queue: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
Raster backend now draws the bump-mapped cube sample!
Change-Id: I4ad74c50a329dcd0c9b56f2a18b1e32fd5c5eccd
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297815
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
We made these functions return nullptr but several
call sites were not updated to expect nullptr.
This is my best guess for the attached fuzzer bug.
I haven't looked deeply but will if this doesn't fix it.
Bug: chromium:1097084
Change-Id: Id57d402dea5f007d886d852be8035b13f62be9a8
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297820
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
GrGLSLGeometryProcessors no longer have to call emitTransforms() in
their onEmitCode() function. Instead, the GpArgs struct allows them to
set a GrShaderVar that holds the computed or explicitly provided local
coordinates in the vertex shader.
The base GrGLSLGeometryProcessor now automatically uses that to collect
all of the transforms that can then be lifted out of FPs to the vertex
shader, and base their computation on the GP provided local coordinate.
As part of this, there is no more built-in magic concatenation of a
local matrix / inverse view matrix to these coordinate transforms. GP
implementations that relied on this now manage their own uniform for this
matrix and compute the local coordinate before assigning to GpArgs.
The base GrGLSLGeometryProcessor is updated to provide helpers for this
pattern.
Bug: skia:10396
Change-Id: I56afb3fff4b806f6015ab13626ac1afde9ef5c2b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297027
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Change-Id: Ibf68103e8e47d3cd13b12a97da3b9131dbdbfd38
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297857
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
This allows users to create their context with {antialias: true} and
*hope* for MSAA. This CL also updates viewer.html achieve MSAA with this
method, and if the browser doesn't give an MSAA, we simply abort.
Change-Id: Ia242d266123c4b08f15a357e1fedc449642d88d3
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297597
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
This reverts commit 4e37751693.
Reason for revert: breaking some mac test bots
Original change's description:
> Make it easier to test rectangle textures by using createBackendTexture.
>
> Also allows internal creation of rectangle textures, only used by unit
> tests currently.
>
> Previously GrContext::createBackendTexture() would ignore the request
> for RECTANGLE or EXTERNAL and always make 2D. Now it makes RECTANGLE if
> supported and always fails for EXTERNAL.
>
> Change-Id: Iafbb3f5acddb37bfb8d39740f2590177a07dae78
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297472
> Commit-Queue: Brian Salomon <bsalomon@google.com>
> Reviewed-by: Robert Phillips <robertphillips@google.com>
TBR=egdaniel@google.com,bsalomon@google.com,robertphillips@google.com
Change-Id: Ia14c60ae996757369f1711ec0851e199cbbd4157
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297812
Reviewed-by: Derek Sollenberger <djsollen@google.com>
Commit-Queue: Derek Sollenberger <djsollen@google.com>
If the address is known statically, prefer to use multiple fixed loads,
so that we can translate these kinds of programs to SkVM.
Change-Id: I0e0f126f5a1538fdc54a9c953f67b93a37a500c5
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297803
Auto-Submit: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
Change-Id: I83d9148b6f651c3d518b3add4cb160c0860dc281
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297802
Commit-Queue: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
Auto-Submit: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
On slower machines, invoking |chrome.gpuBenchmarking.printToSkPicture|
too early after the headless browser is launched leads to no .skp
files being captured. Adding a sleep after the launch of the headless
browser rectifies the issue.
Bug: NONE
Change-Id: I39178f8336b794a6f293bd337aca0b6f85a07360
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297805
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
This is a reland of 907f34bfc1
This version avoids calling vector::front() on an empty vector, which
is undefined behavior and can cause some versions of libc to trigger a
SIGABRT when debug is enabled. (GrReducedClip.cpp:939)
Original change's description:
> Replace analytic clip stack with chained fragment processors.
>
> We no longer need to maintain a vector of analytic FPs and run them in
> series. (CCPR and fShader do not support chaining in this CL, so we do
> need to assemble a vector of FPs at the last instant.)
>
> Change-Id: I1f7a64cf617d577e05e1fe41c740361f702a76b0
> Bug: skia:10217
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/296861
> Commit-Queue: John Stiles <johnstiles@google.com>
> Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Bug: skia:10217
Change-Id: Ibd562c31160414143e396b24c879eefaefe3967b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297151
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Previously the test checked two clones against each other. It seems
more useful to test an original against a clone.
Change-Id: Ie49a39829a0f5ee24724e4acefad50e539104f48
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297460
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
This is a reland of 4e68ec693f
Original change's description:
> Snap coordinates for shader nearest-neighbor decal filtering
>
> Bug: skia:10403
> Change-Id: I875b1a4bb7cacbe6721a69aa8ed02118b989729d
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297596
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Michael Ludwig <michaelludwig@google.com>
Bug: skia:10403
Change-Id: Idcf0b9a2d85410901a6d6fc2bedf628122cf9ae4
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297799
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
Trickiest bit is probably the override provider in kSampleExplicit?
Change-Id: Ib0ada157825c844ff4b7b43efac9f27f3552f3d1
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297775
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
Change-Id: I82592c5bb3c6fb7a0e61970d0a8980855c04ce50
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297798
Auto-Submit: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Also allows internal creation of rectangle textures, only used by unit
tests currently.
Previously GrContext::createBackendTexture() would ignore the request
for RECTANGLE or EXTERNAL and always make 2D. Now it makes RECTANGLE if
supported and always fails for EXTERNAL.
Change-Id: Iafbb3f5acddb37bfb8d39740f2590177a07dae78
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297472
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
In OOPR/DDL mode, images wrapping backend textures must be able to exist past the end of the GM - residing in the DDL.
Change-Id: Icc78e407b45f91d3d47eebde2c316ff6bd962afb
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297380
Reviewed-by: Greg Daniel <egdaniel@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
This also adds a GPUTEST_FOR_D3D_CONTEXT macro to help with debugging
tests.
Change-Id: I72db01d148755c3bbbbb4d948d441a31dcf9482b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297717
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
This is enough to get the colorcube GM working on the CPU backend.
(It's not blazingly fast, but it works!)
Change-Id: Ic069861bab162ed49f876fd03af2cbaaec2da628
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297718
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
The flippity GM doesn't create backend textures but it does perform some custom proxy creation (i.e., using MakeTextureProxyFromData to set the origin) that requires a direct context. This work must be done in onGpuSetup but doesn't entail any fancy lifetime management.
TBR=egdaniel@google.com
Change-Id: I258c0cb66746ca6853a4e228e10407671d7d55d9
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297697
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
Bug: skia:10139
Change-Id: I18bd5c078c785bf7faa3e2e20e93efca082951ea
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297359
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
Bug: skia:10403
Change-Id: I875b1a4bb7cacbe6721a69aa8ed02118b989729d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297596
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
This reverts commit ddca6ab54a.
Reason for revert: breaking abandoned context bot
Original change's description:
> Fix flippity GM for *ooprddl configs
>
> The flippity GM doesn't create backend textures but it does perform some custom proxy creation (i.e., using MakeTextureProxyFromData to set the origin) that requires a direct context. This work must be done in onGpuSetup but doesn't entail any fancy lifetime management.
>
> Change-Id: Ica4f4f7476778cdf934c3be9ef8c9a28d0d4ba2e
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297445
> Reviewed-by: Greg Daniel <egdaniel@google.com>
> Commit-Queue: Robert Phillips <robertphillips@google.com>
TBR=egdaniel@google.com,robertphillips@google.com
Change-Id: Ie66a4187a5ff2efee21f60bb9c0d00e2aab3d1e8
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297696
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
Previously, we were limiting our calls to appendVAList to 512-byte
chunks to avoid a potential buffer overflow. This had two problems:
1 - it did not avoid the buffer overflow :(
see chromium:1092743
2 - every call to appendVAList is expensive; it incurs a resize of the
code buffer (alloc new, memcpy, free old)
This CL removes the 512-byte cap as the buffer overflow issue was
resolved at http://review.skia.org/297276
This CL also includes a few more minor improvements.
- `codeAppendf` now uses a raw string so the gencode is easier to read.
- Optimized `SkStringPrintf("%s", foo)` to `SkString(foo)`.
- Optimized `strA = strB` to `strA.swap(strB)` where safe to do so.
Change-Id: Ia0909a68719848dd2ca655066a9bc6929c8fd09f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297358
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
The flippity GM doesn't create backend textures but it does perform some custom proxy creation (i.e., using MakeTextureProxyFromData to set the origin) that requires a direct context. This work must be done in onGpuSetup but doesn't entail any fancy lifetime management.
Change-Id: Ica4f4f7476778cdf934c3be9ef8c9a28d0d4ba2e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297445
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
Unit tests for SkString::appendVAList would have preemptively caught the
associated fuzzer failure.
Change-Id: I19a414e5e937f9e3fbe0f75e062b4befa6e2877b
Bug: chromium:1092743
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297473
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
fa3d64bf72..c81f0b7b92
2020-06-18 cnorthrop@google.com Tests: Update trace timestamps
2020-06-18 angle-autoroll@skia-public.iam.gserviceaccount.com Roll VK-GL-CTS from bfa95c7ad8b7 to 23498d296498 (1 revision)
2020-06-18 syoussefi@chromium.org Disable ES3 perf tests on Nvidia/windows7/Vulkan
2020-06-18 syoussefi@chromium.org Fix restricted_traces/.gitignore
2020-06-18 angle-autoroll@skia-public.iam.gserviceaccount.com Roll SPIRV-Tools from a7112d544b2e to 99651228b238 (2 revisions)
2020-06-18 angle-autoroll@skia-public.iam.gserviceaccount.com Roll SwiftShader from 763957e6b4fc to 7a1d99d0be42 (4 revisions)
If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/angle-skia-autoroll
Please CC djsollen@google.com on the revert to ensure that a human
is aware of the problem.
To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug
Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/master/autoroll/README.md
Cq-Include-Trybots: skia/skia.primary:Build-Debian10-Clang-x86_64-Release-ANGLE;skia/skia.primary:Test-Win10-Clang-AlphaR2-GPU-RadeonR9M470X-x86_64-Debug-All-ANGLE;skia/skia.primary:Test-Win10-Clang-Golo-GPU-QuadroP400-x86_64-Debug-All-ANGLE;skia/skia.primary:Test-Win10-Clang-NUC5i7RYH-GPU-IntelIris6100-x86_64-Debug-All-ANGLE;skia/skia.primary:Test-Win10-Clang-NUC6i5SYK-GPU-IntelIris540-x86_64-Debug-All-ANGLE;skia/skia.primary:Test-Win10-Clang-NUC8i5BEK-GPU-IntelIris655-x86_64-Debug-All-ANGLE;skia/skia.primary:Test-Win10-Clang-NUCD34010WYKH-GPU-IntelHD4400-x86_64-Debug-All-ANGLE
Bug: chromium:1096510
Tbr: djsollen@google.com
Test: Test: angle_perftests --gtest_filter="*Trace*"
Change-Id: If2cfc7beb35bc2401e3edf149ddcbbec9ecdfb2a
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297616
Reviewed-by: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
nearest + repeat doesn't need to operate in unnorm coords.
Restores behavior previos to:
https://skia-review.googlesource.com/c/skia/+/297189y
Change-Id: Id78fb1a1526e0703ed17a3c46082209447cac2dd
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297464
Auto-Submit: Brian Salomon <bsalomon@google.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Another peephole where we're happy to trade a bit of interpreter
performance for less code size and easier translation to SkVM now.
Change-Id: I0de7962194fa4dbbc5d77f68831f1374333de9c4
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297536
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Also remove unused buffers. FPs no longer support reading from buffers.
Bug: skia:10139
Change-Id: Id1e2d7ef2cfa7f11a95cb0ce448c69af755c2b65
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297176
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
Change-Id: I44eab9976aa4820a74f9246f1244c1a293e1fff6
Bug: gn:175, gn:158
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297463
Commit-Queue: John Stiles <johnstiles@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
These were peephole optimizations that help the interpreter a bit, but
I'd like to favor code size and ease of translation to SkVM now.
We can now run: sample(child, p.yx) on the CPU backend, for example.
Change-Id: I90f2f649d95d5c4c50e470988590491e3b56ba34
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297465
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
With the CPU backend, there is no GrContext on the canvas, so we were
sending errors to the default handler (SkDebugf + assert), so editing
shaders was impossible. Now they fail gracefully (and produce a popup
window with the message).
Change-Id: I29bad24f201be59ba1cec45f446a433c01cf86dc
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297461
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
This will let the threshold_rt GM draw even if --skvm isn't forced.
I don't see any GM diffs beyond that.
PS3 expands the same basic idea just a little wider.
Change-Id: I714c0fd2d4e6814c307a189a9f004e8ed729819a
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297419
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
I don't see us ever really saying dstCS == nullptr --> dstCS = sRGB.
It's too handy a feature to have a legacy dst.
Change-Id: I20576962eeb5a2ce7d0da09ffe1bbba860dad086
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297418
Auto-Submit: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
This creates a funnel in the drawing manager (removeRenderTasks) that
opens the door for tighter integration between the two classes. Also we
add some assertions about the relationship and cut out duplicated code.
Bug: skia:10372
Change-Id: I0781ba7d45ac090cf7f6d430f0d56afe0f98b7e0
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297195
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Adlai Holler <adlai@google.com>
Mostly plumbing and misc instructions to draw threshold_rt.
Backends differ in what we return when sampling alpha-only
images, so I've switched threshold_rt to use the .a channel,
which everyone agrees on.
I'm pretty confused about what CTM and local matrix to pass
to the child program() calls, so I've just passed no-ops.
Change-Id: I004b428b4e5e27f3963a27dea0ef44e1f57bc3e0
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297384
Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
