| /* |
| * 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 "include/core/SkPromiseImageTexture.h" |
| #include "include/gpu/GrBackendSurface.h" |
| #include "include/gpu/GrContext.h" |
| #include "include/gpu/GrTexture.h" |
| #include "include/private/GrRecordingContext.h" |
| #include "src/core/SkBitmapCache.h" |
| #include "src/core/SkTLList.h" |
| #include "src/gpu/GrClip.h" |
| #include "src/gpu/GrContextPriv.h" |
| #include "src/gpu/GrImageInfo.h" |
| #include "src/gpu/GrRecordingContextPriv.h" |
| #include "src/gpu/GrRenderTargetContext.h" |
| #include "src/gpu/GrTextureAdjuster.h" |
| #include "src/gpu/effects/GrYUVtoRGBEffect.h" |
| #include "src/image/SkImage_Gpu.h" |
| #include "src/image/SkImage_GpuBase.h" |
| #include "src/image/SkReadPixelsRec.h" |
| |
| SkImage_GpuBase::SkImage_GpuBase(sk_sp<GrContext> context, int width, int height, uint32_t uniqueID, |
| SkColorType ct, SkAlphaType at, sk_sp<SkColorSpace> cs) |
| : INHERITED(SkImageInfo::Make(width, height, ct, at, std::move(cs)), uniqueID) |
| , fContext(std::move(context)) {} |
| |
| 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(const GrCaps* caps, const GrBackendTexture& tex, |
| GrColorType grCT, 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; |
| } |
| |
| return caps->areColorTypeAndFormatCompatible(grCT, backendFormat); |
| } |
| |
| ////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| bool SkImage_GpuBase::getROPixels(SkBitmap* dst, CachingHint chint) const { |
| auto direct = fContext->priv().asDirectContext(); |
| if (!direct) { |
| // 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->imageInfo(), &pmap); |
| if (!rec) { |
| return false; |
| } |
| } else { |
| if (!dst->tryAllocPixels(this->imageInfo()) || !dst->peekPixels(&pmap)) { |
| return false; |
| } |
| } |
| |
| sk_sp<GrTextureProxy> texProxy = this->asTextureProxyRef(direct); |
| GrColorType grColorType = SkColorTypeAndFormatToGrColorType(fContext->priv().caps(), |
| this->colorType(), |
| texProxy->backendFormat()); |
| |
| auto sContext = direct->priv().makeWrappedSurfaceContext( |
| std::move(texProxy), grColorType, this->alphaType(), this->refColorSpace()); |
| 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(GrRecordingContext* context, |
| const SkIRect& subset) const { |
| if (!context || !fContext->priv().matches(context)) { |
| return nullptr; |
| } |
| |
| sk_sp<GrSurfaceProxy> proxy = this->asTextureProxyRef(context); |
| GrColorType srcColorType = SkColorTypeToGrColorType(this->colorType()); |
| |
| sk_sp<GrTextureProxy> copyProxy = GrSurfaceProxy::Copy( |
| context, proxy.get(), srcColorType, GrMipMapped::kNo, subset, SkBackingFit::kExact, |
| proxy->isBudgeted()); |
| |
| if (!copyProxy) { |
| return nullptr; |
| } |
| |
| // MDB: this call is okay bc we know 'sContext' was kExact |
| return sk_make_sp<SkImage_Gpu>(fContext, kNeedNewImageUniqueID, this->alphaType(), |
| std::move(copyProxy), this->refColorSpace()); |
| } |
| |
| bool SkImage_GpuBase::onReadPixels(const SkImageInfo& dstInfo, void* dstPixels, size_t dstRB, |
| int srcX, int srcY, CachingHint) const { |
| auto direct = fContext->priv().asDirectContext(); |
| if (!direct) { |
| // DDL TODO: buffer up the readback so it occurs when the DDL is drawn? |
| return false; |
| } |
| |
| if (!SkImageInfoValidConversion(dstInfo, this->imageInfo())) { |
| return false; |
| } |
| |
| sk_sp<GrTextureProxy> texProxy = this->asTextureProxyRef(direct); |
| GrColorType grColorType = SkColorTypeAndFormatToGrColorType(fContext->priv().caps(), |
| this->colorType(), |
| texProxy->backendFormat()); |
| |
| auto sContext = direct->priv().makeWrappedSurfaceContext( |
| std::move(texProxy), grColorType, this->alphaType(), this->refColorSpace()); |
| if (!sContext) { |
| return false; |
| } |
| |
| return sContext->readPixels(dstInfo, dstPixels, dstRB, {srcX, srcY}); |
| } |
| |
| sk_sp<GrTextureProxy> SkImage_GpuBase::asTextureProxyRef(GrRecordingContext* context, |
| const GrSamplerState& params, |
| SkScalar scaleAdjust[2]) const { |
| if (!context || !fContext->priv().matches(context)) { |
| SkASSERT(0); |
| return nullptr; |
| } |
| |
| GrTextureAdjuster adjuster(fContext.get(), this->asTextureProxyRef(context), |
| SkColorTypeToGrColorType(this->colorType()), this->alphaType(), |
| this->uniqueID(), this->colorSpace()); |
| return adjuster.refTextureProxyForParams(params, scaleAdjust); |
| } |
| |
| GrBackendTexture SkImage_GpuBase::onGetBackendTexture(bool flushPendingGrContextIO, |
| GrSurfaceOrigin* origin) const { |
| auto direct = fContext->priv().asDirectContext(); |
| if (!direct) { |
| // This image was created with a DDL context and cannot be instantiated. |
| return GrBackendTexture(); // invalid |
| } |
| |
| sk_sp<GrTextureProxy> proxy = this->asTextureProxyRef(direct); |
| SkASSERT(proxy); |
| |
| if (!proxy->isInstantiated()) { |
| auto resourceProvider = direct->priv().resourceProvider(); |
| |
| if (!proxy->instantiate(resourceProvider)) { |
| return GrBackendTexture(); // invalid |
| } |
| } |
| |
| GrTexture* texture = proxy->peekTexture(); |
| if (texture) { |
| if (flushPendingGrContextIO) { |
| direct->priv().flushSurface(proxy.get()); |
| } |
| if (origin) { |
| *origin = proxy->origin(); |
| } |
| return texture->getBackendTexture(); |
| } |
| return GrBackendTexture(); // invalid |
| } |
| |
| GrTexture* SkImage_GpuBase::onGetTexture() const { |
| GrTextureProxy* proxy = this->peekProxy(); |
| if (proxy && proxy->isInstantiated()) { |
| return proxy->peekTexture(); |
| } |
| |
| auto direct = fContext->priv().asDirectContext(); |
| if (!direct) { |
| // This image was created with a DDL context and cannot be instantiated. |
| return nullptr; |
| } |
| |
| sk_sp<GrTextureProxy> proxyRef = this->asTextureProxyRef(direct); |
| SkASSERT(proxyRef && !proxyRef->isInstantiated()); |
| |
| if (!proxyRef->instantiate(direct->priv().resourceProvider())) { |
| return nullptr; |
| } |
| |
| return proxyRef->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->priv().abandoned()) { |
| return false; |
| } |
| |
| if (context && !fContext->priv().matches(context)) { |
| 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(); |
| const GrCaps* caps = ctx->priv().caps(); |
| |
| for (int textureIndex = 0; textureIndex < numTextures; ++textureIndex) { |
| GrBackendFormat backendFormat = yuvaTextures[textureIndex].getBackendFormat(); |
| if (!backendFormat.isValid()) { |
| return false; |
| } |
| |
| GrColorType grColorType = caps->getYUVAColorTypeFromBackendFormat( |
| backendFormat, |
| yuvaIndices[3].fIndex == textureIndex); |
| if (GrColorType::kUnknown == grColorType) { |
| return false; |
| } |
| |
| SkASSERT(yuvaTextures[textureIndex].isValid()); |
| |
| tempTextureProxies[textureIndex] = proxyProvider->wrapBackendTexture( |
| yuvaTextures[textureIndex], grColorType, 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 |
| auto componentFlags = GrColorTypeComponentFlags(grColorType); |
| for (int yuvaIndex = 0; yuvaIndex < SkYUVAIndex::kIndexCount; ++yuvaIndex) { |
| if (yuvaIndices[yuvaIndex].fIndex == textureIndex) { |
| switch (yuvaIndices[yuvaIndex].fChannel) { |
| case SkColorChannel::kR: |
| // TODO: Chrome needs to be patched before this can be |
| // enforced. |
| // if (!(kRed_SkColorTypeComponentFlag & componentFlags)) { |
| // return false; |
| // } |
| break; |
| case SkColorChannel::kG: |
| if (!(kGreen_SkColorTypeComponentFlag & componentFlags)) { |
| return false; |
| } |
| break; |
| case SkColorChannel::kB: |
| if (!(kBlue_SkColorTypeComponentFlag & componentFlags)) { |
| return false; |
| } |
| break; |
| case SkColorChannel::kA: |
| if (!(kAlpha_SkColorTypeComponentFlag & componentFlags)) { |
| 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); |
| return true; |
| } |
| |
| sk_sp<GrTextureProxy> SkImage_GpuBase::MakePromiseImageLazyProxy( |
| GrContext* context, int width, int height, GrSurfaceOrigin origin, GrColorType colorType, |
| GrBackendFormat backendFormat, GrMipMapped mipMapped, |
| PromiseImageTextureFulfillProc fulfillProc, |
| PromiseImageTextureReleaseProc releaseProc, |
| PromiseImageTextureDoneProc doneProc, |
| PromiseImageTextureContext textureContext, |
| PromiseImageApiVersion version) { |
| SkASSERT(context); |
| SkASSERT(width > 0 && height > 0); |
| SkASSERT(doneProc); |
| SkASSERT(colorType != GrColorType::kUnknown); |
| |
| 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 as Fulfill results for |
| * multiple SkImages. The created GrTexture is given a key based on a unique ID associated with |
| * the SkPromiseImageTexture. |
| * |
| * The GrTexutre idle proc mechanism is used to call the Release and Done procs. We use this |
| * instead of the GrSurface release proc because the GrTexture is cached and therefore may |
| * outlive the proxy into which this callback is installed. |
| * |
| * A key invalidation message is installed on the SkPromiseImageTexture so that the GrTexture |
| * is deleted once it can no longer be used to instantiate a proxy. |
| */ |
| class PromiseLazyInstantiateCallback { |
| public: |
| PromiseLazyInstantiateCallback(PromiseImageTextureFulfillProc fulfillProc, |
| PromiseImageTextureReleaseProc releaseProc, |
| PromiseImageTextureDoneProc doneProc, |
| PromiseImageTextureContext context, |
| GrColorType colorType, |
| PromiseImageApiVersion version) |
| : fFulfillProc(fulfillProc) |
| , fReleaseProc(releaseProc) |
| , fColorType(colorType) |
| , fVersion(version) { |
| fDoneCallback = sk_make_sp<GrRefCntedCallback>(doneProc, context); |
| } |
| PromiseLazyInstantiateCallback(PromiseLazyInstantiateCallback&&) = default; |
| PromiseLazyInstantiateCallback(const PromiseLazyInstantiateCallback&) { |
| // Because we get wrapped in std::function we must be copyable. But we should never |
| // be copied. |
| SkASSERT(false); |
| } |
| PromiseLazyInstantiateCallback& operator=(PromiseLazyInstantiateCallback&&) = default; |
| PromiseLazyInstantiateCallback& operator=(const PromiseLazyInstantiateCallback&) { |
| SkASSERT(false); |
| return *this; |
| } |
| |
| ~PromiseLazyInstantiateCallback() { |
| // Our destructor can run on any thread. We trigger the unref of fTexture by message. |
| // This unreffed texture pointer is a real problem! When the context has been |
| // abandoned, the GrTexture pointed to by this pointer is deleted! Due to virtual |
| // inheritance any manipulation of this pointer at that point will cause a crash. |
| // For now we "work around" the problem by just passing it, untouched, into the |
| // message bus but this very fragile. |
| // In the future the GrSurface class hierarchy refactoring should eliminate this |
| // difficulty by removing the virtual inheritance. |
| if (fTexture) { |
| SkMessageBus<GrTextureFreedMessage>::Post({fTexture, fTextureContextID}); |
| } |
| } |
| |
| GrSurfaceProxy::LazyCallbackResult operator()(GrResourceProvider* resourceProvider) { |
| // We use the unique key in a way that is unrelated to the SkImage-based key that the |
| // proxy may receive, hence kUnsynced. |
| static constexpr auto kKeySyncMode = |
| GrSurfaceProxy::LazyInstantiationKeyMode::kUnsynced; |
| |
| // In order to make the SkImage "thread safe" we rely on holding an extra ref to the |
| // texture in the callback and signalling the unref via a message to the resource cache. |
| // We need to extend the callback's lifetime to that of the proxy. |
| static constexpr auto kReleaseCallbackOnInstantiation = false; |
| |
| // Our proxy is getting instantiated for the second+ time. We are only allowed to call |
| // Fulfill once. So return our cached result. |
| if (fTexture) { |
| return {sk_ref_sp(fTexture), kReleaseCallbackOnInstantiation, kKeySyncMode}; |
| } else if (fColorType == GrColorType::kUnknown) { |
| // We've already called fulfill and it failed. Our contract says that we should only |
| // call each callback once. |
| return {}; |
| } |
| SkASSERT(fDoneCallback); |
| PromiseImageTextureContext textureContext = fDoneCallback->context(); |
| sk_sp<SkPromiseImageTexture> promiseTexture = fFulfillProc(textureContext); |
| // From here on out our contract is that the release proc must be called, even if |
| // the return from fulfill was invalid or we fail for some other reason. |
| auto releaseCallback = sk_make_sp<GrRefCntedCallback>(fReleaseProc, textureContext); |
| if (!promiseTexture) { |
| // This records that we have failed. |
| fColorType = GrColorType::kUnknown; |
| return {}; |
| } |
| |
| const GrBackendTexture& backendTexture = promiseTexture->backendTexture(); |
| if (!backendTexture.isValid()) { |
| return {}; |
| } |
| |
| sk_sp<GrTexture> tex; |
| static const GrUniqueKey::Domain kDomain = GrUniqueKey::GenerateDomain(); |
| GrUniqueKey key; |
| GrUniqueKey::Builder builder(&key, kDomain, 2, "promise"); |
| builder[0] = promiseTexture->uniqueID(); |
| builder[1] = (uint32_t) fColorType; |
| 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>(key)) { |
| tex = sk_ref_sp(surf->asTexture()); |
| SkASSERT(tex); |
| } else { |
| if ((tex = resourceProvider->wrapBackendTexture( |
| backendTexture, fColorType, kBorrow_GrWrapOwnership, |
| GrWrapCacheable::kYes, kRead_GrIOType))) { |
| tex->resourcePriv().setUniqueKey(key); |
| } else { |
| return {}; |
| } |
| } |
| auto releaseIdleState = fVersion == PromiseImageApiVersion::kLegacy |
| ? GrTexture::IdleState::kFinished |
| : GrTexture::IdleState::kFlushed; |
| tex->addIdleProc(std::move(releaseCallback), releaseIdleState); |
| tex->addIdleProc(std::move(fDoneCallback), GrTexture::IdleState::kFinished); |
| promiseTexture->addKeyToInvalidate(tex->getContext()->priv().contextID(), key); |
| fTexture = tex.get(); |
| // We need to hold on to the GrTexture in case our proxy gets reinstantiated. However, |
| // we can't unref in our destructor because we may be on another thread then. So we |
| // let the cache know it is waiting on an unref message. We will send that message from |
| // our destructor. |
| GrContext* context = fTexture->getContext(); |
| context->priv().getResourceCache()->insertDelayedTextureUnref(fTexture); |
| fTextureContextID = context->priv().contextID(); |
| return {std::move(tex), kReleaseCallbackOnInstantiation, kKeySyncMode}; |
| } |
| |
| private: |
| PromiseImageTextureFulfillProc fFulfillProc; |
| PromiseImageTextureReleaseProc fReleaseProc; |
| sk_sp<GrRefCntedCallback> fDoneCallback; |
| GrTexture* fTexture = nullptr; |
| uint32_t fTextureContextID = SK_InvalidUniqueID; |
| GrColorType fColorType; |
| PromiseImageApiVersion fVersion; |
| } callback(fulfillProc, releaseProc, doneProc, textureContext, colorType, version); |
| |
| GrProxyProvider* proxyProvider = context->priv().proxyProvider(); |
| |
| GrPixelConfig config = context->priv().caps()->getConfigFromBackendFormat( |
| backendFormat, |
| colorType); |
| |
| GrSurfaceDesc desc; |
| desc.fWidth = width; |
| desc.fHeight = height; |
| desc.fConfig = config; |
| |
| // Ganesh assumes that, when wrapping a mipmapped backend texture from a client, that its |
| // mipmaps are fully fleshed out. |
| GrMipMapsStatus mipMapsStatus = (GrMipMapped::kYes == mipMapped) |
| ? GrMipMapsStatus::kValid : GrMipMapsStatus::kNotAllocated; |
| |
| // We pass kReadOnly here since we should treat content of the client's texture as immutable. |
| // The promise API provides no way for the client to indicated that the texture is protected. |
| return proxyProvider->createLazyProxy( |
| std::move(callback), backendFormat, desc, GrRenderable::kNo, 1, origin, mipMapped, |
| mipMapsStatus, GrInternalSurfaceFlags::kReadOnly, SkBackingFit::kExact, SkBudgeted::kNo, |
| GrProtected::kNo, GrSurfaceProxy::UseAllocator::kYes); |
| } |
