b915c94384
This is just the API level interface(s) and the backend virtual calls needed to implement them. Bug: skia:9680 Change-Id: I6c655751e23ce18c6a184c925e8d472902e8a478 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/259976 Reviewed-by: Greg Daniel <egdaniel@google.com> Reviewed-by: Brian Salomon <bsalomon@google.com> Commit-Queue: Robert Phillips <robertphillips@google.com>
88 lines
2.7 KiB
C++
88 lines
2.7 KiB
C++
/*
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* Copyright 2019 Google Inc.
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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 GrContext_Base_DEFINED
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#define GrContext_Base_DEFINED
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#include "include/core/SkRefCnt.h"
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#include "include/gpu/GrBackendSurface.h"
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#include "include/gpu/GrContextOptions.h"
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#include "include/gpu/GrTypes.h"
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class GrBaseContextPriv;
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class GrCaps;
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class GrContext;
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class GrImageContext;
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class GrRecordingContext;
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class GrContext_Base : public SkRefCnt {
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public:
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virtual ~GrContext_Base();
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/*
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* The 3D API backing this context
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*/
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SK_API GrBackendApi backend() const { return fBackend; }
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/*
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* Retrieve the default GrBackendFormat for a given SkColorType and renderability.
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* It is guaranteed that this backend format will be the one used by the GrContext
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* SkColorType and SkSurfaceCharacterization-based createBackendTexture methods.
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*
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* The caller should check that the returned format is valid.
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*/
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SK_API GrBackendFormat defaultBackendFormat(SkColorType, GrRenderable) const;
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SK_API GrBackendFormat compressedBackendFormat(SkImage::CompressionType) const;
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// Provides access to functions that aren't part of the public API.
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GrBaseContextPriv priv();
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const GrBaseContextPriv priv() const;
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protected:
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friend class GrBaseContextPriv; // for hidden functions
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GrContext_Base(GrBackendApi backend, const GrContextOptions& options, uint32_t contextID);
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virtual bool init(sk_sp<const GrCaps>);
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/**
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* An identifier for this context. The id is used by all compatible contexts. For example,
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* if SkImages are created on one thread using an image creation context, then fed into a
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* DDL Recorder on second thread (which has a recording context) and finally replayed on
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* a third thread with a direct context, then all three contexts will report the same id.
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* It is an error for an image to be used with contexts that report different ids.
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*/
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uint32_t contextID() const { return fContextID; }
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bool matches(GrContext_Base* candidate) const {
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return candidate->contextID() == this->contextID();
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}
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/*
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* The options in effect for this context
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*/
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const GrContextOptions& options() const { return fOptions; }
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const GrCaps* caps() const;
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sk_sp<const GrCaps> refCaps() const;
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virtual GrImageContext* asImageContext() { return nullptr; }
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virtual GrRecordingContext* asRecordingContext() { return nullptr; }
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virtual GrContext* asDirectContext() { return nullptr; }
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private:
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const GrBackendApi fBackend;
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const GrContextOptions fOptions;
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const uint32_t fContextID;
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sk_sp<const GrCaps> fCaps;
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typedef SkRefCnt INHERITED;
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};
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#endif
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