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* Copyright 2018 Google Inc.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#ifndef GrProxyProvider_DEFINED
#define GrProxyProvider_DEFINED
#include "GrCaps.h"
#include "GrResourceKey.h"
#include "GrTextureProxy.h"
#include "GrTypes.h"
#include "SkRefCnt.h"
#include "SkTDynamicHash.h"
class GrResourceProvider;
class GrSingleOwner;
class GrBackendRenderTarget;
class SkBitmap;
class SkImage;
* A factory for creating GrSurfaceProxy-derived objects.
class GrProxyProvider {
GrProxyProvider(GrResourceProvider*, GrResourceCache*, sk_sp<const GrCaps>, GrSingleOwner*);
GrProxyProvider(uint32_t contextUniqueID, sk_sp<const GrCaps>, GrSingleOwner*);
* Assigns a unique key to a proxy. The proxy will be findable via this key using
* findProxyByUniqueKey(). It is an error if an existing proxy already has a key.
bool assignUniqueKeyToProxy(const GrUniqueKey&, GrTextureProxy*);
* Sets the unique key of the provided proxy to the unique key of the surface. The surface must
* have a valid unique key.
void adoptUniqueKeyFromSurface(GrTextureProxy* proxy, const GrSurface*);
* Removes a unique key from a proxy. If the proxy has already been instantiated, it will
* also remove the unique key from the target GrSurface.
void removeUniqueKeyFromProxy(GrTextureProxy*);
* Finds a proxy by unique key.
sk_sp<GrTextureProxy> findProxyByUniqueKey(const GrUniqueKey&, GrSurfaceOrigin);
* Finds a proxy by unique key or creates a new one that wraps a resource matching the unique
* key.
sk_sp<GrTextureProxy> findOrCreateProxyByUniqueKey(const GrUniqueKey&, GrSurfaceOrigin);
* Create an un-mipmapped texture proxy with data. The SkImage must be a raster backend image.
* Since the SkImage is ref counted, we simply take a ref on it to keep the data alive until we
* actually upload the data to the gpu.
sk_sp<GrTextureProxy> createTextureProxy(
sk_sp<SkImage> srcImage, GrSurfaceDescFlags, int sampleCnt, SkBudgeted, SkBackingFit,
GrInternalSurfaceFlags = GrInternalSurfaceFlags::kNone);
* Create a mipmapped texture proxy without any data.
* Like the call above but there are no texels to upload. A texture proxy is returned that
* simply has space allocated for the mips. We will allocated the full amount of mip levels
* based on the width and height in the GrSurfaceDesc.
sk_sp<GrTextureProxy> createMipMapProxy(const GrBackendFormat&, const GrSurfaceDesc&,
GrSurfaceOrigin, SkBudgeted);
* Creates a new mipmapped texture proxy for the bitmap with mip levels generated by the cpu.
sk_sp<GrTextureProxy> createMipMapProxyFromBitmap(const SkBitmap& bitmap);
* Create a GrSurfaceProxy without any data.
sk_sp<GrTextureProxy> createProxy(const GrBackendFormat&, const GrSurfaceDesc&, GrSurfaceOrigin,
GrMipMapped, SkBackingFit, SkBudgeted,
sk_sp<GrTextureProxy> createProxy(
const GrBackendFormat& format, const GrSurfaceDesc& desc,
GrSurfaceOrigin origin, SkBackingFit fit, SkBudgeted budgeted,
GrInternalSurfaceFlags surfaceFlags = GrInternalSurfaceFlags::kNone) {
return this->createProxy(format, desc, origin, GrMipMapped::kNo, fit, budgeted,
* Create a texture proxy with data. It's assumed that the data is packed tightly.
sk_sp<GrTextureProxy> createProxy(sk_sp<SkData>, const GrSurfaceDesc& desc);
// These match the definitions in SkImage & GrTexture.h, for whence they came
typedef void* ReleaseContext;
typedef void (*ReleaseProc)(ReleaseContext);
* Create a texture proxy that wraps a (non-renderable) backend texture. GrIOType must be
* kRead or kRW.
sk_sp<GrTextureProxy> wrapBackendTexture(const GrBackendTexture&, GrSurfaceOrigin,
GrWrapOwnership, GrWrapCacheable, GrIOType,
ReleaseProc = nullptr, ReleaseContext = nullptr);
* Create a texture proxy that wraps a backend texture and is both texture-able and renderable
sk_sp<GrTextureProxy> wrapRenderableBackendTexture(const GrBackendTexture&, GrSurfaceOrigin,
int sampleCnt, GrWrapOwnership,
GrWrapCacheable, ReleaseProc,
* Create a render target proxy that wraps a backend render target
sk_sp<GrSurfaceProxy> wrapBackendRenderTarget(const GrBackendRenderTarget&, GrSurfaceOrigin,
ReleaseProc, ReleaseContext);
* Create a render target proxy that wraps a backend texture
sk_sp<GrSurfaceProxy> wrapBackendTextureAsRenderTarget(const GrBackendTexture& backendTex,
GrSurfaceOrigin origin,
int sampleCnt);
sk_sp<GrRenderTargetProxy> wrapVulkanSecondaryCBAsRenderTarget(const SkImageInfo&,
const GrVkDrawableInfo&);
using LazyInstantiateCallback = std::function<sk_sp<GrSurface>(GrResourceProvider*)>;
enum class Renderable : bool {
kNo = false,
kYes = true
struct TextureInfo {
GrMipMapped fMipMapped;
GrTextureType fTextureType;
using LazyInstantiationType = GrSurfaceProxy::LazyInstantiationType;
* Creates a texture proxy that will be instantiated by a user-supplied callback during flush.
* (Stencil is not supported by this method.) The width and height must either both be greater
* than 0 or both less than or equal to zero. A non-positive value is a signal that the width
* and height are currently unknown.
* When called, the callback must be able to cleanup any resources that it captured at creation.
* It also must support being passed in a null GrResourceProvider. When this happens, the
* callback should cleanup any resources it captured and return an empty sk_sp<GrTextureProxy>.
sk_sp<GrTextureProxy> createLazyProxy(LazyInstantiateCallback&&, const GrBackendFormat&,
const GrSurfaceDesc&, GrSurfaceOrigin, GrMipMapped,
GrInternalSurfaceFlags, SkBackingFit, SkBudgeted,
sk_sp<GrTextureProxy> createLazyProxy(LazyInstantiateCallback&&, const GrBackendFormat&,
const GrSurfaceDesc&, GrSurfaceOrigin, GrMipMapped,
GrInternalSurfaceFlags, SkBackingFit, SkBudgeted);
sk_sp<GrTextureProxy> createLazyProxy(LazyInstantiateCallback&&, const GrBackendFormat&,
const GrSurfaceDesc&, GrSurfaceOrigin, GrMipMapped,
SkBackingFit, SkBudgeted);
/** A null TextureInfo indicates a non-textureable render target. */
sk_sp<GrRenderTargetProxy> createLazyRenderTargetProxy(LazyInstantiateCallback&&,
const GrBackendFormat&,
const GrSurfaceDesc&,
GrSurfaceOrigin origin,
const TextureInfo*,
* Fully lazy proxies have unspecified width and height. Methods that rely on those values
* (e.g., width, height, getBoundsRect) should be avoided.
static sk_sp<GrTextureProxy> MakeFullyLazyProxy(LazyInstantiateCallback&&,
const GrBackendFormat&, Renderable,
GrSurfaceOrigin, GrPixelConfig, const GrCaps&);
// 'proxy' is about to be used as a texture src or drawn to. This query can be used to
// determine if it is going to need a texture domain or a full clear.
static bool IsFunctionallyExact(GrSurfaceProxy* proxy);
enum class InvalidateGPUResource : bool { kNo = false, kYes = true };
* This method ensures that, if a proxy w/ the supplied unique key exists, it is removed from
* the proxy provider's map and its unique key is removed. If 'invalidateSurface' is true, it
* will independently ensure that the unique key is removed from any GrGpuResources that may
* have it.
* If 'proxy' is provided (as an optimization to stop re-looking it up), its unique key must be
* valid and match the provided unique key.
* This method is called if either the proxy attached to the unique key is being deleted
* (in which case we don't want it cluttering up the hash table) or the client has indicated
* that it will never refer to the unique key again.
void processInvalidUniqueKey(const GrUniqueKey&, GrTextureProxy*, InvalidateGPUResource);
uint32_t contextUniqueID() const { return fContextUniqueID; }
const GrCaps* caps() const { return fCaps.get(); }
sk_sp<const GrCaps> refCaps() const { return fCaps; }
void abandon() {
fResourceCache = nullptr;
fResourceProvider = nullptr;
fAbandoned = true;
bool isAbandoned() const {
#ifdef SK_DEBUG
if (fAbandoned) {
SkASSERT(!fResourceCache && !fResourceProvider);
return fAbandoned;
int numUniqueKeyProxies_TestOnly() const;
// This is called on a DDL's proxyprovider when the DDL is finished. The uniquely keyed
// proxies need to keep their unique key but cannot hold on to the proxy provider unique
// pointer.
void orphanAllUniqueKeys();
// This is only used by GrContext::releaseResourcesAndAbandonContext()
void removeAllUniqueKeys();
* Are we currently recording a DDL?
bool recordingDDL() const { return !SkToBool(fResourceProvider); }
* Create a texture proxy that is backed by an instantiated GrSurface.
sk_sp<GrTextureProxy> testingOnly_createInstantiatedProxy(const GrSurfaceDesc&, GrSurfaceOrigin,
SkBackingFit, SkBudgeted);
sk_sp<GrTextureProxy> testingOnly_createWrapped(sk_sp<GrTexture>, GrSurfaceOrigin);
friend class GrAHardwareBufferImageGenerator; // for createWrapped
friend class GrResourceProvider; // for createWrapped
sk_sp<GrTextureProxy> createWrapped(sk_sp<GrTexture> tex, GrSurfaceOrigin origin);
struct UniquelyKeyedProxyHashTraits {
static const GrUniqueKey& GetKey(const GrTextureProxy& p) { return p.getUniqueKey(); }
static uint32_t Hash(const GrUniqueKey& key) { return key.hash(); }
typedef SkTDynamicHash<GrTextureProxy, GrUniqueKey, UniquelyKeyedProxyHashTraits> UniquelyKeyedProxyHash;
// This holds the texture proxies that have unique keys. The resourceCache does not get a ref
// on these proxies but they must send a message to the resourceCache when they are deleted.
UniquelyKeyedProxyHash fUniquelyKeyedProxies;
GrResourceProvider* fResourceProvider;
GrResourceCache* fResourceCache;
bool fAbandoned;
sk_sp<const GrCaps> fCaps;
// If this provider is owned by a DDLContext then this is the DirectContext's ID.
uint32_t fContextUniqueID;
// In debug builds we guard against improper thread handling
SkDEBUGCODE(mutable GrSingleOwner* fSingleOwner;)