Refactor separable varying location info to be stored in GrGLProgram
subclass GrGLProgram instead of storing it in GrGLPathProcessor.
Separable varyings are exactly analoguous to uniforms: they are inputs
to the shader program. Shader compile-time information about uniforms is gathered to
GrGLProgramBuilder. This information is the converted to link-time
information, uniform locations, when constructing the program. Separable
varyings need to have same lifetime model.
This is needed in the future to support path rendering in Chromium. The
Chromium pseudo-extension will expose program fragment input binding
function similar to uniform binding function. Thus the separable varying
locations need to be decided and bound before link, e.g. before
GrGLProgram is created. This will be achieved in further patches by
overloading GrGLProgramBuilder::bindProgramResourceLocations() in
GrGLNvprProgramBuilder.
BUG=chromium:344330
Review URL: https://codereview.chromium.org/1186113007
The purpose is to begin separating our GLSL-specific code from
our GL-specific code, so it can be used with the GL45 platform
Review URL: https://codereview.chromium.org/1202293002
This is an alternate version of GrAAConvexPathRenderer which handles
curves by first flattening them to straight lines.
BUG=skia:
Review URL: https://codereview.chromium.org/1158803002
Removes the runtime logic used by PorterDuffXferProcessor to decide
blend coeffs and shader outputs, and instead uses a compile-time
constant table of pre-selected blend formulas. Separates out the dst
read fallback into its own XP.
Introduces a new blend strategy for srcCoeff=0 that can apply coverage
with a reverse subtract blend equation instead of dual source
blending.
Adds new macros in GrBlend.h to analyze blend formulas both runtime.
Removes kSetCoverageDrawing_OptFlag and GrSimplifyBlend as they are no
longer used.
Adds a GM that verifies all xfermodes, including arithmetic, with the
color/coverage invariants used by Porter Duff.
Adds a unit test that verifies each Porter Duff formula with every
color/coverage invariant.
Major changes:
* Uses a reverse subtract blend equation for coverage when srcCoeff=0
(clear, dst-out [Sa=1], dst-in, modulate). Platforms that don't
support dual source blending no longer require a dst copy for
dst-in and modulate.
* Sets BlendInfo::fWriteColor to false when the blend does not modify
the dst. GrGLGpu will now use glColorMask instead of blending for
these modes (dst, dst-in [Sa=1], modulate ignored for [Sc=1]).
* Converts all SA blend coeffs to One for opaque inputs, and ISA to
Zero if there is also no coverage. (We keep ISA around when there
is coverage because we use it to tweak alpha for coverage.)
* Abandons solid white optimizations for the sake of simplicity
(screen was the only mode that previous had solid white opts).
Minor differences:
* Inconsequential differences in opt flags (e.g. we now return
kCanTweakAlphaForCoverage_OptFlag even when there is no coverage).
* Src coeffs when the shader outputs 0.
* IS2C vs IS2A when the secondary output is scalar.
BUG=skia:
Committed: https://skia.googlesource.com/skia/+/9a70920db22b6309c671f8e5d519bb95570e4414
Review URL: https://codereview.chromium.org/1124373002
This CL is ugly but it:
removes the stored SkGpuDevice back pointer from GrTextContext (at the cost of passing more parameters)
moves SkGpuDevice::internalDrawPath to GrDrawContext::drawPathFull
Unfortunately, the GrTextContext-derived classes still need the SkGpuDevice for filterTextFlags calls but I will try removing that in a separate CL.
Review URL: https://codereview.chromium.org/1157773003
This is mainly a mechanical CL. There were some fiddly bits in GrContext.cpp where it no longer had access to the GrDrawTarget (and had to use the new GrDrawContext).
I've converted GrAARectRenderer & GrOvalRenderer into static classes so I could stop allocating them.
Review URL: https://codereview.chromium.org/1151283004
Reason for revert:
Blocking DEPS roll into Chromium. Crashing virtual/gpu/fast/canvas/canvas-composite-*.html tests with the assert
../../third_party/skia/src/gpu/gl/builders/GrGLFragmentShaderBuilder.cpp:281: failed assertion "k110_GrGLSLGeneration != gpu->glslGeneration() || fOutputs.empty()"
Original issue's description:
> Implement Porter Duff XP with a blend table
>
> Removes the runtime logic used by PorterDuffXferProcessor to decide
> blend coeffs and shader outputs, and instead uses a compile-time
> constant table of pre-selected blend formulas.
>
> Introduces a new blend strategy for srcCoeff=0 that can apply coverage
> with a reverse subtract blend equation instead of dual source
> blending.
>
> Adds new macros in GrBlend.h to analyze blend formulas both runtime.
>
> Removes kSetCoverageDrawing_OptFlag and GrSimplifyBlend as they are no
> longer used.
>
> Adds a GM that verifies all xfermodes, including arithmetic, with the
> color/coverage invariants used by Porter Duff.
>
> Adds a unit test that verifies each Porter Duff formula with every
> color/coverage invariant.
>
> Major changes:
>
> * Uses a reverse subtract blend equation for coverage when srcCoeff=0
> (clear, dst-out [Sa=1], dst-in, modulate). Platforms that don't
> support dual source blending no longer require a dst copy for
> dst-in and modulate.
>
> * Sets BlendInfo::fWriteColor to false when the blend does not modify
> the dst. GrGLGpu will now use glColorMask instead of blending for
> these modes (dst, dst-in [Sa=1], modulate ignored for [Sc=1]).
>
> * Converts all SA blend coeffs to One for opaque inputs, and ISA to
> Zero if there is also no coverage. (We keep ISA around when there
> is coverage because we use it to tweak alpha for coverage.)
>
> * Abandons solid white optimizations for the sake of simplicity
> (screen was the only mode that previous had solid white opts).
>
> Minor differences:
>
> * Inconsequential differences in opt flags (e.g. we now return
> kCanTweakAlphaForCoverage_OptFlag even when there is no coverage).
>
> * Src coeffs when the shader outputs 0.
>
> * IS2C vs IS2A when the secondary output is scalar.
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/9a70920db22b6309c671f8e5d519bb95570e4414TBR=egdaniel@google.com,bsalomon@google.com,cdalton@nvidia.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:
Review URL: https://codereview.chromium.org/1153993002
Removes the runtime logic used by PorterDuffXferProcessor to decide
blend coeffs and shader outputs, and instead uses a compile-time
constant table of pre-selected blend formulas.
Introduces a new blend strategy for srcCoeff=0 that can apply coverage
with a reverse subtract blend equation instead of dual source
blending.
Adds new macros in GrBlend.h to analyze blend formulas both runtime.
Removes kSetCoverageDrawing_OptFlag and GrSimplifyBlend as they are no
longer used.
Adds a GM that verifies all xfermodes, including arithmetic, with the
color/coverage invariants used by Porter Duff.
Adds a unit test that verifies each Porter Duff formula with every
color/coverage invariant.
Major changes:
* Uses a reverse subtract blend equation for coverage when srcCoeff=0
(clear, dst-out [Sa=1], dst-in, modulate). Platforms that don't
support dual source blending no longer require a dst copy for
dst-in and modulate.
* Sets BlendInfo::fWriteColor to false when the blend does not modify
the dst. GrGLGpu will now use glColorMask instead of blending for
these modes (dst, dst-in [Sa=1], modulate ignored for [Sc=1]).
* Converts all SA blend coeffs to One for opaque inputs, and ISA to
Zero if there is also no coverage. (We keep ISA around when there
is coverage because we use it to tweak alpha for coverage.)
* Abandons solid white optimizations for the sake of simplicity
(screen was the only mode that previous had solid white opts).
Minor differences:
* Inconsequential differences in opt flags (e.g. we now return
kCanTweakAlphaForCoverage_OptFlag even when there is no coverage).
* Src coeffs when the shader outputs 0.
* IS2C vs IS2A when the secondary output is scalar.
BUG=skia:
Review URL: https://codereview.chromium.org/1124373002
Move line dashing logic from GrContext::drawPath to
GrDashLinePathRenderer. This makes it possible to let path renderers render arbitrary dashed paths.
End goal is to implement dashing in GrStencilAndCoverPathRenderer.
Review URL: https://codereview.chromium.org/1100073003
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
This has the side effect of requiring SkNullGLContext to use the null GL interface.
It exposes SkNullGLContext and also removes null context support from SampleApp.
Review URL: https://codereview.chromium.org/916733002
Exposing SkSurface_Gpu makes me sad and I would welcome alternatives.
This change is desireable since it greatly decreases the render target swaps.
Review URL: https://codereview.chromium.org/792923002
Rename GrTextStrike.{cpp.h} to GrFontCache.{cpp,h}
Move contents of GrTextStrike_impl.h to GrFontCache.h
Move glyph uploading to a separate function and remove harmful gotos
Add assert on glyph upload failure (shouldn't happen)
Review URL: https://codereview.chromium.org/780923002
This CL updates various files in the includes directory to ensure that (1) they do
not depend on headers in /src and (2) that they minimize their dependence on external
headers.
To ensure that we don't regress this behavior a new build target has been added to
build a single cpp file that contains all* public includes and is compiled with
only those directories in the include path.
* The exception is those includes that depend on OS specific headers
BUG=skia:2941
NOTRY=true
Review URL: https://codereview.chromium.org/721903002
This will help with the ability to subclass, add to, etc. GrInvariantOutput. Also it was simply
getting a little too big to be a "supporting" subclass
BUG=skia:
Review URL: https://codereview.chromium.org/699943003
all its commands interleaved in contiguous memory. GrTRecorder also
supports extra data associated with objects, so we can store arrays
inline without having to call malloc().
Review URL: https://codereview.chromium.org/628453002
all its commands interleaved in contiguous memory. GrTBaseList also
supports extra data associated with objects, so we can store arrays
inline without having to call malloc().
Review URL: https://codereview.chromium.org/628453002
Make the Sk GL context class, SkGLNativeContext, an abstract base class. Before,
it depended on ifdefs to implement the platform dependent polymorphism. Move
the logic to subclasses of the various platform implementations.
This a step to enable Skia embedders to compile dm and bench_pictures. The
concrete goal is to support running these test apps with Chromium command buffer.
With this change, Chromium can implement its own version of SkGLNativeContext
that uses command buffer, and host the implementation in its own repository.
Implements the above by renaming the SkGLContextHelper to SkGLContext and
removing the unneeded SkGLNativeContext. Also removes
SkGLNativeContext::AutoRestoreContext functionality, it appeared to be unused:
no use in Skia code, and no tests.
BUG=skia:2992
Committed: https://skia.googlesource.com/skia/+/a90ed4e83897b45d6331ee4c54e1edd4054de9a8
Review URL: https://codereview.chromium.org/630843002
Reason for revert:
nanobech failing on Android
Original issue's description:
> Make the Sk GL context class an abstract base class
>
> Make the Sk GL context class, SkGLNativeContext, an abstract base class. Before,
> it depended on ifdefs to implement the platform dependent polymorphism. Move
> the logic to subclasses of the various platform implementations.
>
> This a step to enable Skia embedders to compile dm and bench_pictures. The
> concrete goal is to support running these test apps with Chromium command buffer.
>
> With this change, Chromium can implement its own version of SkGLNativeContext
> that uses command buffer, and host the implementation in its own repository.
>
> Implements the above by renaming the SkGLContextHelper to SkGLContext and
> removing the unneeded SkGLNativeContext. Also removes
> SkGLNativeContext::AutoRestoreContext functionality, it appeared to be unused:
> no use in Skia code, and no tests.
>
> BUG=skia:2992
>
> Committed: https://skia.googlesource.com/skia/+/a90ed4e83897b45d6331ee4c54e1edd4054de9a8TBR=kkinnunen@nvidia.com
NOTREECHECKS=true
NOTRY=true
BUG=skia:2992
Review URL: https://codereview.chromium.org/639793002
Make the Sk GL context class, SkGLNativeContext, an abstract base class. Before,
it depended on ifdefs to implement the platform dependent polymorphism. Move
the logic to subclasses of the various platform implementations.
This a step to enable Skia embedders to compile dm and bench_pictures. The
concrete goal is to support running these test apps with Chromium command buffer.
With this change, Chromium can implement its own version of SkGLNativeContext
that uses command buffer, and host the implementation in its own repository.
Implements the above by renaming the SkGLContextHelper to SkGLContext and
removing the unneeded SkGLNativeContext. Also removes
SkGLNativeContext::AutoRestoreContext functionality, it appeared to be unused:
no use in Skia code, and no tests.
BUG=skia:2992
Review URL: https://codereview.chromium.org/630843002
this is a huge refactor and cleanup of the gl shader building system in
Skia. The entire shader building pipeline is now part of
GrGLProgramCreator, which takes a gp, and some fps, and creates a
program. I added some subclasses of GrGLProgram to handle the
eccentricities of Nvpr/Nvpres. Outside of the builders folder
and GrGLPrograms, this change is basically just a rename
solo gp
BUG=skia:
Committed: https://skia.googlesource.com/skia/+/fe1233c3f12f81bb675718516bbb32f72af726ec
Review URL: https://codereview.chromium.org/611653002
Reason for revert:
Seems to have messed up windows 7 gms
Original issue's description:
> Cleanup of shader building system
>
> this is a huge refactor and cleanup of the gl shader building system in
> Skia. The entire shader building pipeline is now part of
> GrGLProgramCreator, which takes a gp, and some fps, and creates a
> program. I added some subclasses of GrGLProgram to handle the
> eccentricities of Nvpr/Nvpres. Outside of the builders folder
> and GrGLPrograms, this change is basically just a rename
>
>
> solo gp
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/fe1233c3f12f81bb675718516bbb32f72af726ecTBR=bsalomon@google.com
NOTREECHECKS=true
NOTRY=true
BUG=skia:
Review URL: https://codereview.chromium.org/635533005
this is a huge refactor and cleanup of the gl shader building system in
Skia. The entire shader building pipeline is now part of
GrGLProgramCreator, which takes a gp, and some fps, and creates a
program. I added some subclasses of GrGLProgram to handle the
eccentricities of Nvpr/Nvpres. Outside of the builders folder
and GrGLPrograms, this change is basically just a rename
solo gp
BUG=skia:
Review URL: https://codereview.chromium.org/611653002
typeface. Loads the paths using the driver's glyph loading routines.
Refactors GrPathRange to accept a PathGenerator class that it uses to
lazily initialize its paths. The client code is no longer expected to
initialize the paths in a GrPathRange; instead it must provide a
PathGenerator* instance to createPathRange().
Adds a new createGlyphs() method to GrPathRendering that creates a
range of glyph paths, indexed by glyph id. GrPathRendering implements
createGlyphs() with a PathGenerator that loads glyph paths using the
skia frameworks. GrGLPathRendering uses glMemoryGlyphIndexArrayNV()
instead, when possible, to load the glyph paths.
Removes all GlyphPathRange logic from GrStencilAndCoverTextContext.
It instead uses createGlyphs().
BUG=skia:2939
R=bsalomon@google.com, jvanverth@google.com
Author: cdalton@nvidia.com
Review URL: https://codereview.chromium.org/563283004
Separate GL path rendering state from GrGpuGL to GrGLPathRendering. This
makes GrGpuGL code simpler.
The intention is that while GrGpuGL represents the global environment for GL,
the GrGLPathRendering represents the global environment for path rendering
extension.
Add GrPathRendering, a base class for path rendering, and inherit
GrGLPathRendering from that. Move the path rendering virtual functions from
GrGpu to GrPathRendering.
R=bsalomon@google.com, cdalton@nvidia.com
Author: kkinnunen@nvidia.com
Review URL: https://codereview.chromium.org/452823002
This reverts commit 5672da0fa5.
This appears to be blocking the Skia roll by causing failures in the blink layout tests on the canvas-lost-gpu-context.html test.
The bisect for this can be seen at:
https://codereview.chromium.org/449473002/
Original issue's description:
> Adds a GrGLPathRendering class that wraps the NV_path_rendering
> extension and manages its various API versions. It also provides
> backup implementations when certain NVpr methods from later API
> versions are not present on the current system.
>
> Committed: https://skia.googlesource.com/skia/+/5672da0fa54f31c9727568e9dd5fe82c6e1585bc
