2c2bc11aea
GrExternalTextureData is an API for exporting the backend-specific information about a texture in a type-safe way, and without pointing into the GrTexture. The new detachBackendTexture API lets us release ownership of a texture to the client. SkCrossContextImageData is the public API that lets clients upload textures on one thread/GrContext, then safely transfer ownership to another thread and GrContext for rendering. Only GL is implemented/supported right now. Vulkan support requires that we add thread-safe memory pools, or otherwise transfer the actual memory block containing the texture to the new context. Re-land of https://skia-review.googlesource.com/c/8529/ BUG=skia: Change-Id: I48ebd57d1ea0cfd3a1db10c475f2903afb821966 Reviewed-on: https://skia-review.googlesource.com/8960 Reviewed-by: Brian Salomon <bsalomon@google.com> Commit-Queue: Brian Osman <brianosman@google.com>
31 lines
670 B
C++
31 lines
670 B
C++
/*
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* Copyright 2017 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 GrExternalTextureData_DEFINED
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#define GrExternalTextureData_DEFINED
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#include "GrTypes.h"
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#include "GrTypesPriv.h"
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class SK_API GrExternalTextureData : SkNoncopyable {
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public:
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GrExternalTextureData(GrFence fence) : fFence(fence) {}
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virtual ~GrExternalTextureData() {}
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virtual GrBackend getBackend() const = 0;
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GrFence getFence() const { return fFence; }
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protected:
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virtual GrBackendObject getBackendObject() const = 0;
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GrFence fFence;
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friend class SkCrossContextImageData;
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};
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#endif
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