| /* |
| * Copyright 2018 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkImage_GpuBase.h" |
| #include "GrBackendSurface.h" |
| #include "GrClip.h" |
| #include "GrContext.h" |
| #include "GrContextPriv.h" |
| #include "GrRenderTargetContext.h" |
| #include "GrTexture.h" |
| #include "GrTextureAdjuster.h" |
| #include "SkBitmapCache.h" |
| #include "SkImage_Gpu.h" |
| #include "SkPromiseImageTexture.h" |
| #include "SkReadPixelsRec.h" |
| #include "SkTLList.h" |
| #include "effects/GrYUVtoRGBEffect.h" |
| |
| SkImage_GpuBase::SkImage_GpuBase(sk_sp<GrContext> context, int width, int height, uint32_t uniqueID, |
| SkAlphaType at, sk_sp<SkColorSpace> cs) |
| : INHERITED(width, height, uniqueID) |
| , fContext(std::move(context)) |
| , fAlphaType(at) |
| , fColorSpace(std::move(cs)) {} |
| |
| SkImage_GpuBase::~SkImage_GpuBase() {} |
| |
| ////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| #if GR_TEST_UTILS |
| void SkImage_GpuBase::resetContext(sk_sp<GrContext> newContext) { |
| SkASSERT(fContext->priv().matches(newContext.get())); |
| fContext = newContext; |
| } |
| #endif |
| |
| bool SkImage_GpuBase::ValidateBackendTexture(GrContext* ctx, const GrBackendTexture& tex, |
| GrPixelConfig* config, SkColorType ct, SkAlphaType at, |
| sk_sp<SkColorSpace> cs) { |
| if (!tex.isValid()) { |
| return false; |
| } |
| // TODO: Create a SkImageColorInfo struct for color, alpha, and color space so we don't need to |
| // create a fake image info here. |
| SkImageInfo info = SkImageInfo::Make(1, 1, ct, at, cs); |
| if (!SkImageInfoIsValid(info)) { |
| return false; |
| } |
| GrBackendFormat backendFormat = tex.getBackendFormat(); |
| if (!backendFormat.isValid()) { |
| return false; |
| } |
| *config = ctx->priv().caps()->getConfigFromBackendFormat(backendFormat, ct); |
| return *config != kUnknown_GrPixelConfig; |
| } |
| |
| ////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| bool SkImage_GpuBase::getROPixels(SkBitmap* dst, CachingHint chint) const { |
| if (!fContext->priv().resourceProvider()) { |
| // DDL TODO: buffer up the readback so it occurs when the DDL is drawn? |
| return false; |
| } |
| |
| const auto desc = SkBitmapCacheDesc::Make(this); |
| if (SkBitmapCache::Find(desc, dst)) { |
| SkASSERT(dst->isImmutable()); |
| SkASSERT(dst->getPixels()); |
| return true; |
| } |
| |
| SkBitmapCache::RecPtr rec = nullptr; |
| SkPixmap pmap; |
| if (kAllow_CachingHint == chint) { |
| rec = SkBitmapCache::Alloc(desc, this->onImageInfo(), &pmap); |
| if (!rec) { |
| return false; |
| } |
| } else { |
| if (!dst->tryAllocPixels(this->onImageInfo()) || !dst->peekPixels(&pmap)) { |
| return false; |
| } |
| } |
| |
| sk_sp<GrSurfaceContext> sContext = fContext->priv().makeWrappedSurfaceContext( |
| this->asTextureProxyRef(), |
| fColorSpace); |
| if (!sContext) { |
| return false; |
| } |
| |
| if (!sContext->readPixels(pmap.info(), pmap.writable_addr(), pmap.rowBytes(), 0, 0)) { |
| return false; |
| } |
| |
| if (rec) { |
| SkBitmapCache::Add(std::move(rec), dst); |
| this->notifyAddedToRasterCache(); |
| } |
| return true; |
| } |
| |
| sk_sp<SkImage> SkImage_GpuBase::onMakeSubset(const SkIRect& subset) const { |
| sk_sp<GrSurfaceProxy> proxy = this->asTextureProxyRef(); |
| |
| GrSurfaceDesc desc; |
| desc.fWidth = subset.width(); |
| desc.fHeight = subset.height(); |
| desc.fConfig = proxy->config(); |
| |
| GrBackendFormat format = proxy->backendFormat().makeTexture2D(); |
| if (!format.isValid()) { |
| return nullptr; |
| } |
| |
| // TODO: Should this inherit our proxy's budgeted status? |
| sk_sp<GrSurfaceContext> sContext(fContext->priv().makeDeferredSurfaceContext( |
| format, desc, proxy->origin(), GrMipMapped::kNo, SkBackingFit::kExact, |
| proxy->isBudgeted())); |
| if (!sContext) { |
| return nullptr; |
| } |
| |
| if (!sContext->copy(proxy.get(), subset, SkIPoint::Make(0, 0))) { |
| return nullptr; |
| } |
| |
| // MDB: this call is okay bc we know 'sContext' was kExact |
| return sk_make_sp<SkImage_Gpu>(fContext, kNeedNewImageUniqueID, fAlphaType, |
| sContext->asTextureProxyRef(), this->refColorSpace()); |
| } |
| |
| static void apply_premul(const SkImageInfo& info, void* pixels, size_t rowBytes) { |
| switch (info.colorType()) { |
| case kRGBA_8888_SkColorType: |
| case kBGRA_8888_SkColorType: |
| break; |
| default: |
| return; // nothing to do |
| } |
| |
| // SkColor is not necessarily RGBA or BGRA, but it is one of them on little-endian, |
| // and in either case, the alpha-byte is always in the same place, so we can safely call |
| // SkPreMultiplyColor() |
| // |
| SkColor* row = (SkColor*)pixels; |
| for (int y = 0; y < info.height(); ++y) { |
| for (int x = 0; x < info.width(); ++x) { |
| row[x] = SkPreMultiplyColor(row[x]); |
| } |
| row = (SkColor*)((char*)(row)+rowBytes); |
| } |
| } |
| |
| bool SkImage_GpuBase::onReadPixels(const SkImageInfo& dstInfo, void* dstPixels, size_t dstRB, |
| int srcX, int srcY, CachingHint) const { |
| if (!fContext->priv().resourceProvider()) { |
| // DDL TODO: buffer up the readback so it occurs when the DDL is drawn? |
| return false; |
| } |
| |
| if (!SkImageInfoValidConversion(dstInfo, this->onImageInfo())) { |
| return false; |
| } |
| |
| SkReadPixelsRec rec(dstInfo, dstPixels, dstRB, srcX, srcY); |
| if (!rec.trim(this->width(), this->height())) { |
| return false; |
| } |
| |
| // TODO: this seems to duplicate code in GrTextureContext::onReadPixels and |
| // GrRenderTargetContext::onReadPixels |
| uint32_t flags = 0; |
| if (kUnpremul_SkAlphaType == rec.fInfo.alphaType() && kPremul_SkAlphaType == fAlphaType) { |
| // let the GPU perform this transformation for us |
| flags = GrContextPriv::kUnpremul_PixelOpsFlag; |
| } |
| |
| sk_sp<GrSurfaceContext> sContext = fContext->priv().makeWrappedSurfaceContext( |
| this->asTextureProxyRef(), this->refColorSpace()); |
| if (!sContext) { |
| return false; |
| } |
| |
| if (!sContext->readPixels(rec.fInfo, rec.fPixels, rec.fRowBytes, rec.fX, rec.fY, flags)) { |
| return false; |
| } |
| |
| // do we have to manually fix-up the alpha channel? |
| // src dst |
| // unpremul premul fix manually |
| // premul unpremul done by kUnpremul_PixelOpsFlag |
| // all other combos need to change. |
| // |
| // Should this be handled by Ganesh? todo:? |
| // |
| if (kPremul_SkAlphaType == rec.fInfo.alphaType() && kUnpremul_SkAlphaType == fAlphaType) { |
| apply_premul(rec.fInfo, rec.fPixels, rec.fRowBytes); |
| } |
| return true; |
| } |
| |
| sk_sp<GrTextureProxy> SkImage_GpuBase::asTextureProxyRef(GrContext* context, |
| const GrSamplerState& params, |
| SkScalar scaleAdjust[2]) const { |
| if (!fContext->priv().matches(context)) { |
| SkASSERT(0); |
| return nullptr; |
| } |
| |
| GrTextureAdjuster adjuster(fContext.get(), this->asTextureProxyRef(), fAlphaType, |
| this->uniqueID(), fColorSpace.get()); |
| return adjuster.refTextureProxyForParams(params, scaleAdjust); |
| } |
| |
| GrBackendTexture SkImage_GpuBase::onGetBackendTexture(bool flushPendingGrContextIO, |
| GrSurfaceOrigin* origin) const { |
| sk_sp<GrTextureProxy> proxy = this->asTextureProxyRef(); |
| SkASSERT(proxy); |
| |
| if (!fContext->priv().resourceProvider() && !proxy->isInstantiated()) { |
| // This image was created with a DDL context and cannot be instantiated. |
| return GrBackendTexture(); |
| } |
| |
| if (!proxy->instantiate(fContext->priv().resourceProvider())) { |
| return GrBackendTexture(); // invalid |
| } |
| |
| GrTexture* texture = proxy->peekTexture(); |
| |
| if (texture) { |
| if (flushPendingGrContextIO) { |
| fContext->priv().prepareSurfaceForExternalIO(proxy.get()); |
| } |
| if (origin) { |
| *origin = proxy->origin(); |
| } |
| return texture->getBackendTexture(); |
| } |
| return GrBackendTexture(); // invalid |
| } |
| |
| GrTexture* SkImage_GpuBase::onGetTexture() const { |
| GrTextureProxy* proxy = this->peekProxy(); |
| if (!proxy) { |
| return nullptr; |
| } |
| |
| sk_sp<GrTextureProxy> proxyRef = this->asTextureProxyRef(); |
| if (!fContext->priv().resourceProvider() && !proxyRef->isInstantiated()) { |
| // This image was created with a DDL context and cannot be instantiated. |
| return nullptr; |
| } |
| |
| if (!proxy->instantiate(fContext->priv().resourceProvider())) { |
| return nullptr; |
| } |
| |
| return proxy->peekTexture(); |
| } |
| |
| bool SkImage_GpuBase::onIsValid(GrContext* context) const { |
| // The base class has already checked that context isn't abandoned (if it's not nullptr) |
| if (fContext->abandoned()) { |
| return false; |
| } |
| |
| if (context && context != fContext.get()) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool SkImage_GpuBase::MakeTempTextureProxies(GrContext* ctx, const GrBackendTexture yuvaTextures[], |
| int numTextures, const SkYUVAIndex yuvaIndices[4], |
| GrSurfaceOrigin imageOrigin, |
| sk_sp<GrTextureProxy> tempTextureProxies[4]) { |
| GrProxyProvider* proxyProvider = ctx->priv().proxyProvider(); |
| |
| // We need to make a copy of the input backend textures because we need to preserve the result |
| // of validate_backend_texture. |
| GrBackendTexture yuvaTexturesCopy[4]; |
| for (int textureIndex = 0; textureIndex < numTextures; ++textureIndex) { |
| yuvaTexturesCopy[textureIndex] = yuvaTextures[textureIndex]; |
| GrBackendFormat backendFormat = yuvaTexturesCopy[textureIndex].getBackendFormat(); |
| if (!backendFormat.isValid()) { |
| return false; |
| } |
| yuvaTexturesCopy[textureIndex].fConfig = |
| ctx->priv().caps()->getYUVAConfigFromBackendFormat(backendFormat); |
| if (yuvaTexturesCopy[textureIndex].fConfig == kUnknown_GrPixelConfig) { |
| return false; |
| } |
| SkASSERT(yuvaTexturesCopy[textureIndex].isValid()); |
| |
| tempTextureProxies[textureIndex] = proxyProvider->wrapBackendTexture( |
| yuvaTexturesCopy[textureIndex], imageOrigin, kBorrow_GrWrapOwnership, |
| GrWrapCacheable::kNo, kRead_GrIOType); |
| if (!tempTextureProxies[textureIndex]) { |
| return false; |
| } |
| |
| // Check that each texture contains the channel data for the corresponding YUVA index |
| GrPixelConfig config = yuvaTexturesCopy[textureIndex].fConfig; |
| for (int yuvaIndex = 0; yuvaIndex < SkYUVAIndex::kIndexCount; ++yuvaIndex) { |
| if (yuvaIndices[yuvaIndex].fIndex == textureIndex) { |
| switch (yuvaIndices[yuvaIndex].fChannel) { |
| case SkColorChannel::kR: |
| if (kAlpha_8_as_Alpha_GrPixelConfig == config) { |
| return false; |
| } |
| break; |
| case SkColorChannel::kG: |
| case SkColorChannel::kB: |
| if (kAlpha_8_as_Alpha_GrPixelConfig == config || |
| kAlpha_8_as_Red_GrPixelConfig == config) { |
| return false; |
| } |
| break; |
| case SkColorChannel::kA: |
| default: |
| if (kRGB_888_GrPixelConfig == config) { |
| return false; |
| } |
| break; |
| } |
| } |
| } |
| } |
| |
| return true; |
| } |
| |
| bool SkImage_GpuBase::RenderYUVAToRGBA(GrContext* ctx, GrRenderTargetContext* renderTargetContext, |
| const SkRect& rect, SkYUVColorSpace yuvColorSpace, |
| sk_sp<GrColorSpaceXform> colorSpaceXform, |
| const sk_sp<GrTextureProxy> proxies[4], |
| const SkYUVAIndex yuvaIndices[4]) { |
| SkASSERT(renderTargetContext); |
| if (!renderTargetContext->asSurfaceProxy()) { |
| return false; |
| } |
| |
| GrPaint paint; |
| paint.setPorterDuffXPFactory(SkBlendMode::kSrc); |
| |
| auto fp = GrYUVtoRGBEffect::Make(proxies, yuvaIndices, yuvColorSpace, |
| GrSamplerState::Filter::kNearest); |
| if (colorSpaceXform) { |
| fp = GrColorSpaceXformEffect::Make(std::move(fp), std::move(colorSpaceXform)); |
| } |
| paint.addColorFragmentProcessor(std::move(fp)); |
| |
| renderTargetContext->drawRect(GrNoClip(), std::move(paint), GrAA::kNo, SkMatrix::I(), rect); |
| |
| // DDL TODO: in the promise image version we must not flush here |
| ctx->priv().flushSurfaceWrites(renderTargetContext->asSurfaceProxy()); |
| |
| return true; |
| } |
| |
| sk_sp<GrTextureProxy> SkImage_GpuBase::MakePromiseImageLazyProxy( |
| GrContext* context, int width, int height, GrSurfaceOrigin origin, GrPixelConfig config, |
| GrBackendFormat backendFormat, GrMipMapped mipMapped, |
| PromiseImageTextureFulfillProc fulfillProc, |
| PromiseImageTextureReleaseProc releaseProc, |
| PromiseImageTextureDoneProc doneProc, |
| PromiseImageTextureContext textureContext, |
| DelayReleaseCallback delayReleaseCallback) { |
| SkASSERT(context); |
| SkASSERT(width > 0 && height > 0); |
| SkASSERT(doneProc); |
| SkASSERT(config != kUnknown_GrPixelConfig); |
| |
| if (!fulfillProc || !releaseProc) { |
| doneProc(textureContext); |
| return nullptr; |
| } |
| |
| if (mipMapped == GrMipMapped::kYes && |
| GrTextureTypeHasRestrictedSampling(backendFormat.textureType())) { |
| // It is invalid to have a GL_TEXTURE_EXTERNAL or GL_TEXTURE_RECTANGLE and have mips as |
| // well. |
| doneProc(textureContext); |
| return nullptr; |
| } |
| |
| /** |
| * This class is the lazy instantiation callback for promise images. It manages calling the |
| * client's Fulfill, Release, and Done procs. It attempts to reuse a GrTexture instance in |
| * cases where the client provides the same SkPromiseImageTexture for successive Fulfill calls. |
| * The created GrTexture is given a key based on a unique ID associated with the |
| * SkPromiseImageTexture. When the texture enters "idle" state (meaning it is not being used by |
| * the GPU and is at rest in the resource cache) the client's Release proc is called |
| * using GrTexture's idle proc mechanism. If the same SkPromiseImageTexture is provided for |
| * another fulfill we find the cached GrTexture. If the proxy, and therefore this object, |
| * is destroyed, we invalidate the GrTexture's key. Also if the client overwrites or |
| * destroys their SkPromiseImageTexture we invalidate the key. |
| * |
| * Currently a GrTexture is only reused for a given SkPromiseImageTexture if the |
| * SkPromiseImageTexture is reused in Fulfill for the same promise SkImage. However, we'd |
| * like to relax that so that a SkPromiseImageTexture can be reused with different promise |
| * SkImages that will reuse a single GrTexture. |
| */ |
| class PromiseLazyInstantiateCallback { |
| public: |
| PromiseLazyInstantiateCallback(PromiseImageTextureFulfillProc fulfillProc, |
| PromiseImageTextureReleaseProc releaseProc, |
| PromiseImageTextureDoneProc doneProc, |
| PromiseImageTextureContext context, |
| DelayReleaseCallback delayReleaseCallback, |
| GrPixelConfig config) |
| : fFulfillProc(fulfillProc) |
| , fConfig(config) |
| , fDelayReleaseCallback(delayReleaseCallback) { |
| auto doneHelper = sk_make_sp<GrReleaseProcHelper>(doneProc, context); |
| fReleaseContext = sk_make_sp<IdleContext::PromiseImageReleaseContext>( |
| releaseProc, context, std::move(doneHelper)); |
| } |
| |
| ~PromiseLazyInstantiateCallback() = default; |
| |
| sk_sp<GrSurface> operator()(GrResourceProvider* resourceProvider) { |
| if (!resourceProvider) { |
| if (fDelayedReleaseTexture) { |
| fDelayedReleaseTexture.reset(); |
| } |
| return nullptr; |
| } |
| if (fDelayedReleaseTexture) { |
| return fDelayedReleaseTexture; |
| } |
| |
| sk_sp<GrTexture> cachedTexture; |
| SkASSERT(fLastFulfilledKey.isValid() == (fLastFulfillID > 0)); |
| if (fLastFulfilledKey.isValid()) { |
| auto surf = resourceProvider->findByUniqueKey<GrSurface>(fLastFulfilledKey); |
| if (surf) { |
| cachedTexture = sk_ref_sp(surf->asTexture()); |
| SkASSERT(cachedTexture); |
| } |
| } |
| // If the release callback hasn't been called already by releasing the GrTexture |
| // then we can be sure that won't happen so long as we have a ref to the texture. |
| if (cachedTexture && !fReleaseContext->isReleased()) { |
| return std::move(cachedTexture); |
| } |
| GrBackendTexture backendTexture; |
| sk_sp<SkPromiseImageTexture> promiseTexture = |
| fFulfillProc(fReleaseContext->textureContext()); |
| fReleaseContext->notifyWasFulfilled(); |
| if (!promiseTexture) { |
| fReleaseContext->release(); |
| return sk_sp<GrTexture>(); |
| } |
| bool same = promiseTexture->uniqueID() == fLastFulfillID; |
| SkASSERT(!same || fLastFulfilledKey.isValid()); |
| if (same && cachedTexture) { |
| SkASSERT(fReleaseContext->unique()); |
| this->addToIdleContext(cachedTexture.get()); |
| return std::move(cachedTexture); |
| } else if (cachedTexture) { |
| cachedTexture->resourcePriv().removeUniqueKey(); |
| } |
| fLastFulfillID = promiseTexture->uniqueID(); |
| |
| backendTexture = promiseTexture->backendTexture(); |
| backendTexture.fConfig = fConfig; |
| if (!backendTexture.isValid()) { |
| // Even though the GrBackendTexture is not valid, we must call the release |
| // proc to keep our contract of always calling Fulfill and Release in pairs. |
| fReleaseContext->release(); |
| return sk_sp<GrTexture>(); |
| } |
| |
| sk_sp<GrTexture> tex; |
| static const GrUniqueKey::Domain kDomain = GrUniqueKey::GenerateDomain(); |
| GrUniqueKey::Builder builder(&fLastFulfilledKey, kDomain, 2, "promise"); |
| builder[0] = promiseTexture->uniqueID(); |
| builder[1] = fConfig; |
| builder.finish(); |
| // A texture with this key may already exist from a different instance of this lazy |
| // callback. This could happen if the client fulfills a promise image with a texture |
| // that was previously used to fulfill a different promise image. |
| if (auto surf = resourceProvider->findByUniqueKey<GrSurface>(fLastFulfilledKey)) { |
| tex = sk_ref_sp(surf->asTexture()); |
| SkASSERT(tex); |
| } else { |
| if ((tex = resourceProvider->wrapBackendTexture( |
| backendTexture, kBorrow_GrWrapOwnership, GrWrapCacheable::kYes, |
| kRead_GrIOType))) { |
| tex->resourcePriv().setUniqueKey(fLastFulfilledKey); |
| } else { |
| // Even though we failed to wrap the backend texture, we must call the release |
| // proc to keep our contract of always calling Fulfill and Release in pairs. |
| fReleaseContext->release(); |
| return sk_sp<GrTexture>(); |
| } |
| } |
| this->addToIdleContext(tex.get()); |
| if (fDelayReleaseCallback == DelayReleaseCallback::kYes) { |
| fDelayedReleaseTexture = tex; |
| } |
| tex->resourcePriv().setUniqueKey(fLastFulfilledKey); |
| SkASSERT(fContextID == SK_InvalidUniqueID || |
| fContextID == tex->getContext()->priv().contextID()); |
| fContextID = tex->getContext()->priv().contextID(); |
| promiseTexture->addKeyToInvalidate(fContextID, fLastFulfilledKey); |
| return std::move(tex); |
| } |
| |
| private: |
| // The GrTexture's idle callback mechanism is used to call the client's Release proc via |
| // this class. This also owns a ref counted helper that calls the client's ReleaseProc when |
| // the ref count reaches zero. The callback and any Fulfilled but un-Released texture share |
| // ownership of the IdleContext. Thus, the IdleContext is destroyed and calls the Done proc |
| // after the last fulfilled texture goes idle and calls the Release proc or the proxy's |
| // destructor destroys the lazy callback, whichever comes last. |
| class IdleContext { |
| public: |
| class PromiseImageReleaseContext; |
| |
| IdleContext() = default; |
| |
| ~IdleContext() = default; |
| |
| void addImageReleaseContext(sk_sp<PromiseImageReleaseContext> context) { |
| fReleaseContexts.addToHead(std::move(context)); |
| } |
| |
| static void IdleProc(void* context) { |
| IdleContext* idleContext = static_cast<IdleContext*>(context); |
| for (ReleaseContextList::Iter iter = idleContext->fReleaseContexts.headIter(); |
| iter.get(); |
| iter.next()) { |
| (*iter.get())->release(); |
| } |
| idleContext->fReleaseContexts.reset(); |
| delete idleContext; |
| } |
| |
| class PromiseImageReleaseContext : public SkNVRefCnt<PromiseImageReleaseContext> { |
| public: |
| PromiseImageReleaseContext(PromiseImageTextureReleaseProc releaseProc, |
| PromiseImageTextureContext textureContext, |
| sk_sp<GrReleaseProcHelper> doneHelper) |
| : fReleaseProc(releaseProc) |
| , fTextureContext(textureContext) |
| , fDoneHelper(std::move(doneHelper)) {} |
| |
| ~PromiseImageReleaseContext() { SkASSERT(fIsReleased); } |
| |
| void release() { |
| SkASSERT(!fIsReleased); |
| fReleaseProc(fTextureContext); |
| fIsReleased = true; |
| } |
| |
| void notifyWasFulfilled() { fIsReleased = false; } |
| bool isReleased() const { return fIsReleased; } |
| |
| PromiseImageTextureContext textureContext() const { return fTextureContext; } |
| |
| private: |
| PromiseImageTextureReleaseProc fReleaseProc; |
| PromiseImageTextureContext fTextureContext; |
| sk_sp<GrReleaseProcHelper> fDoneHelper; |
| bool fIsReleased = true; |
| }; |
| |
| private: |
| using ReleaseContextList = SkTLList<sk_sp<PromiseImageReleaseContext>, 4>; |
| ReleaseContextList fReleaseContexts; |
| }; |
| |
| void addToIdleContext(GrTexture* texture) { |
| SkASSERT(!fReleaseContext->isReleased()); |
| IdleContext* idleContext = static_cast<IdleContext*>(texture->idleContext()); |
| if (!idleContext) { |
| idleContext = new IdleContext(); |
| texture->setIdleProc(IdleContext::IdleProc, idleContext); |
| } |
| idleContext->addImageReleaseContext(fReleaseContext); |
| } |
| |
| sk_sp<IdleContext::PromiseImageReleaseContext> fReleaseContext; |
| sk_sp<GrTexture> fDelayedReleaseTexture; |
| PromiseImageTextureFulfillProc fFulfillProc; |
| GrPixelConfig fConfig; |
| DelayReleaseCallback fDelayReleaseCallback; |
| |
| // ID of the last SkPromiseImageTexture given to us by the client. |
| uint32_t fLastFulfillID = 0; |
| // ID of the GrContext that we are interacting with. |
| uint32_t fContextID = SK_InvalidUniqueID; |
| GrUniqueKey fLastFulfilledKey; |
| } callback(fulfillProc, releaseProc, doneProc, textureContext, delayReleaseCallback, config); |
| |
| GrProxyProvider* proxyProvider = context->priv().proxyProvider(); |
| |
| GrSurfaceDesc desc; |
| desc.fWidth = width; |
| desc.fHeight = height; |
| desc.fConfig = config; |
| |
| // We pass kReadOnly here since we should treat content of the client's texture as immutable. |
| return proxyProvider->createLazyProxy(std::move(callback), backendFormat, desc, origin, |
| mipMapped, GrInternalSurfaceFlags::kReadOnly, |
| SkBackingFit::kExact, SkBudgeted::kNo, |
| GrSurfaceProxy::LazyInstantiationType::kDeinstantiate); |
| } |
