blob: f3c62ad778987f00da7c2013a98d3532678c034a [file] [log] [blame]
* Copyright 2017 Google Inc.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#ifndef SkPromiseImageTexture_DEFINED
#define SkPromiseImageTexture_DEFINED
#include "include/core/SkRefCnt.h"
#include "include/gpu/GrBackendSurface.h"
#include "include/private/GrResourceKey.h"
* This type is used to fulfill textures for PromiseImages. Once an instance is returned from a
* PromiseImageTextureFulfillProc the GrBackendTexture it wraps must remain valid until the
* corresponding PromiseImageTextureReleaseProc is called. For performance reasons it is
* recommended that the client reuse a single PromiseImageTexture each time a given texture
* is returned by the PromiseImageTextureFulfillProc rather than creating a new PromiseImageTexture
* representing the same underlying backend API texture. If the underlying texture is deleted (after
* PromiseImageTextureReleaseProc has been called if this was returned by a
* PromiseImageTextureFulfillProc) then this object should be disposed as the texture it represented
* cannot be used to fulfill again.
class SK_API SkPromiseImageTexture : public SkNVRefCnt<SkPromiseImageTexture> {
SkPromiseImageTexture() = delete;
SkPromiseImageTexture(const SkPromiseImageTexture&) = delete;
SkPromiseImageTexture(SkPromiseImageTexture&&) = delete;
SkPromiseImageTexture& operator=(const SkPromiseImageTexture&) = delete;
SkPromiseImageTexture& operator=(SkPromiseImageTexture&&) = delete;
static sk_sp<SkPromiseImageTexture> Make(const GrBackendTexture& backendTexture) {
if (!backendTexture.isValid()) {
return nullptr;
return sk_sp<SkPromiseImageTexture>(new SkPromiseImageTexture(backendTexture));
GrBackendTexture backendTexture() const { return fBackendTexture; }
void addKeyToInvalidate(uint32_t contextID, const GrUniqueKey& key);
uint32_t uniqueID() const { return fUniqueID; }
SkTArray<GrUniqueKey> testingOnly_uniqueKeysToInvalidate() const;
explicit SkPromiseImageTexture(const GrBackendTexture& backendTexture);
SkSTArray<1, GrUniqueKeyInvalidatedMessage> fMessages;
GrBackendTexture fBackendTexture;
uint32_t fUniqueID = SK_InvalidUniqueID;
static std::atomic<uint32_t> gUniqueID;