99 lines
3.2 KiB
C
99 lines
3.2 KiB
C
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/*
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* Copyright 2022 Google LLC
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef skgpu_graphite_ContextOptions_DEFINED
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#define skgpu_graphite_ContextOptions_DEFINED
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namespace skgpu { class ShaderErrorHandler; }
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namespace skgpu::graphite {
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struct SK_API ContextOptions {
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ContextOptions() {}
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/**
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* Disables correctness workarounds that are enabled for particular GPUs, OSes, or drivers.
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* This does not affect code path choices that are made for perfomance reasons nor does it
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* override other ContextOption settings.
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*/
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bool fDisableDriverCorrectnessWorkarounds = false;
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/**
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* If present, use this object to report shader compilation failures. If not, report failures
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* via SkDebugf and assert.
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*/
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skgpu::ShaderErrorHandler* fShaderErrorHandler = nullptr;
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/**
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* Will the client make sure to only ever be executing one thread that uses the Context and all
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* derived classes (e.g. Recorders, Recordings, etc.) at a time. If so we can possibly make some
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* objects (e.g. VulkanMemoryAllocator) not thread safe to improve single thread performance.
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*/
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bool fClientWillExternallySynchronizeAllThreads = false;
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/**
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* The maximum size of cache textures used for Skia's Glyph cache.
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*/
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size_t fGlyphCacheTextureMaximumBytes = 2048 * 1024 * 4;
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/**
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* Below this threshold size in device space distance field fonts won't be used. Distance field
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* fonts don't support hinting which is more important at smaller sizes.
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*/
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float fMinDistanceFieldFontSize = 18;
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/**
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* Above this threshold size in device space glyphs are drawn as individual paths.
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*/
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#if defined(SK_BUILD_FOR_ANDROID)
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float fGlyphsAsPathsFontSize = 384;
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#elif defined(SK_BUILD_FOR_MAC)
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float fGlyphsAsPathsFontSize = 256;
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#else
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float fGlyphsAsPathsFontSize = 324;
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#endif
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/**
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* Can the glyph atlas use multiple textures. If allowed, the each texture's size is bound by
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* fGlypheCacheTextureMaximumBytes.
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*/
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bool fAllowMultipleGlyphCacheTextures = true;
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/**
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* If true, then add 1 pixel padding to all glyph masks in the atlas to support bi-lerp
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* rendering of all glyphs. This must be set to true to use Slugs.
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*/
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#if defined(SK_EXPERIMENTAL_SIMULATE_DRAWGLYPHRUNLIST_WITH_SLUG) || \
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defined(SK_EXPERIMENTAL_SIMULATE_DRAWGLYPHRUNLIST_WITH_SLUG_SERIALIZE) || \
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defined(SK_EXPERIMENTAL_SIMULATE_DRAWGLYPHRUNLIST_WITH_SLUG_STRIKE_SERIALIZE)
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bool fSupportBilerpFromGlyphAtlas = true;
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#else
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bool fSupportBilerpFromGlyphAtlas = false;
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#endif
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#if GRAPHITE_TEST_UTILS
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/**
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* Private options that are only meant for testing within Skia's tools.
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*/
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/**
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* Maximum width and height of internal texture atlases.
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*/
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int fMaxTextureAtlasSize = 2048;
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/**
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* If true, will store a pointer in Recorder that points back to the Context
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* that created it. Used by readPixels() and other methods that normally require a Context.
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*/
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bool fStoreContextRefInRecorder = false;
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#endif
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};
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} // namespace skgpu::graphite
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#endif // skgpu_graphite_ContextOptions
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