| /* | |
| * Copyright 2012 Google Inc. | |
| * | |
| * Use of this source code is governed by a BSD-style license that can be | |
| * found in the LICENSE file. | |
| */ | |
| #include <cstddef> | |
| #include <cstring> | |
| #include <type_traits> | |
| #include "GrAHardwareBufferImageGenerator.h" | |
| #include "GrBackendSurface.h" | |
| #include "GrBackendTextureImageGenerator.h" | |
| #include "GrBitmapTextureMaker.h" | |
| #include "GrCaps.h" | |
| #include "GrColorSpaceXform.h" | |
| #include "GrContext.h" | |
| #include "GrContextPriv.h" | |
| #include "GrGpu.h" | |
| #include "GrImageTextureMaker.h" | |
| #include "GrProxyProvider.h" | |
| #include "GrRenderTargetContext.h" | |
| #include "GrResourceProvider.h" | |
| #include "GrSemaphore.h" | |
| #include "GrSurfacePriv.h" | |
| #include "GrTexture.h" | |
| #include "GrTextureAdjuster.h" | |
| #include "GrTexturePriv.h" | |
| #include "GrTextureProxy.h" | |
| #include "GrTextureProxyPriv.h" | |
| #include "SkAutoPixmapStorage.h" | |
| #include "SkBitmapCache.h" | |
| #include "SkCanvas.h" | |
| #include "SkGr.h" | |
| #include "SkImageCacherator.h" | |
| #include "SkImageInfoPriv.h" | |
| #include "SkImage_Gpu.h" | |
| #include "SkMipMap.h" | |
| #include "SkPixelRef.h" | |
| #include "SkReadPixelsRec.h" | |
| #include "SkTraceEvent.h" | |
| #include "effects/GrYUVtoRGBEffect.h" | |
| #include "gl/GrGLTexture.h" | |
| SkImage_Gpu::SkImage_Gpu(sk_sp<GrContext> context, uint32_t uniqueID, SkAlphaType at, | |
| sk_sp<GrTextureProxy> proxy, sk_sp<SkColorSpace> colorSpace, | |
| SkBudgeted budgeted) | |
| : INHERITED(proxy->worstCaseWidth(), proxy->worstCaseHeight(), uniqueID) | |
| , fContext(std::move(context)) | |
| , fProxy(std::move(proxy)) | |
| , fAlphaType(at) | |
| , fBudgeted(budgeted) | |
| , fColorSpace(std::move(colorSpace)) {} | |
| SkImage_Gpu::~SkImage_Gpu() {} | |
| SkImageInfo SkImage_Gpu::onImageInfo() const { | |
| return SkImageInfo::Make(fProxy->width(), fProxy->height(), this->onColorType(), fAlphaType, | |
| fColorSpace); | |
| } | |
| SkColorType SkImage_Gpu::onColorType() const { | |
| SkColorType ct; | |
| if (!GrPixelConfigToColorType(fProxy->config(), &ct)) { | |
| ct = kUnknown_SkColorType; | |
| } | |
| return ct; | |
| } | |
| bool SkImage_Gpu::getROPixels(SkBitmap* dst, SkColorSpace*, CachingHint chint) const { | |
| if (!fContext->contextPriv().resourceProvider()) { | |
| // DDL TODO: buffer up the readback so it occurs when the DDL is drawn? | |
| return false; | |
| } | |
| // The SkColorSpace parameter "dstColorSpace" is really just a hint about how/where the bitmap | |
| // will be used. The client doesn't expect that we convert to that color space, it's intended | |
| // for codec-backed images, to drive our decoding heuristic. In theory we *could* read directly | |
| // into that color space (to save the client some effort in whatever they're about to do), but | |
| // that would make our use of the bitmap cache incorrect (or much less efficient, assuming we | |
| // rolled the dstColorSpace into the key). | |
| const auto desc = SkBitmapCacheDesc::Make(this); | |
| if (SkBitmapCache::Find(desc, dst)) { | |
| SkASSERT(dst->getGenerationID() == this->uniqueID()); | |
| 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->contextPriv().makeWrappedSurfaceContext( | |
| fProxy, | |
| 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<GrTextureProxy> SkImage_Gpu::asTextureProxyRef(GrContext* context, | |
| const GrSamplerState& params, | |
| SkColorSpace* dstColorSpace, | |
| sk_sp<SkColorSpace>* texColorSpace, | |
| SkScalar scaleAdjust[2]) const { | |
| if (context != fContext.get()) { | |
| SkASSERT(0); | |
| return nullptr; | |
| } | |
| GrTextureAdjuster adjuster(fContext.get(), fProxy, this->alphaType(), this->uniqueID(), | |
| this->fColorSpace.get()); | |
| return adjuster.refTextureProxyForParams(params, dstColorSpace, texColorSpace, scaleAdjust); | |
| } | |
| 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 necesarily 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); | |
| } | |
| } | |
| GrBackendTexture SkImage_Gpu::onGetBackendTexture(bool flushPendingGrContextIO, | |
| GrSurfaceOrigin* origin) const { | |
| SkASSERT(fProxy); | |
| if (!fContext->contextPriv().resourceProvider() && !fProxy->isInstantiated()) { | |
| // This image was created with a DDL context and cannot be instantiated. | |
| return GrBackendTexture(); | |
| } | |
| if (!fProxy->instantiate(fContext->contextPriv().resourceProvider())) { | |
| return GrBackendTexture(); // invalid | |
| } | |
| GrTexture* texture = fProxy->peekTexture(); | |
| if (texture) { | |
| if (flushPendingGrContextIO) { | |
| fContext->contextPriv().prepareSurfaceForExternalIO(fProxy.get()); | |
| } | |
| if (origin) { | |
| *origin = fProxy->origin(); | |
| } | |
| return texture->getBackendTexture(); | |
| } | |
| return GrBackendTexture(); // invalid | |
| } | |
| GrTexture* SkImage_Gpu::onGetTexture() const { | |
| GrTextureProxy* proxy = this->peekProxy(); | |
| if (!proxy) { | |
| return nullptr; | |
| } | |
| if (!fContext->contextPriv().resourceProvider() && !fProxy->isInstantiated()) { | |
| // This image was created with a DDL context and cannot be instantiated. | |
| return nullptr; | |
| } | |
| if (!proxy->instantiate(fContext->contextPriv().resourceProvider())) { | |
| return nullptr; | |
| } | |
| return proxy->peekTexture(); | |
| } | |
| bool SkImage_Gpu::onReadPixels(const SkImageInfo& dstInfo, void* dstPixels, size_t dstRB, | |
| int srcX, int srcY, CachingHint) const { | |
| if (!fContext->contextPriv().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->contextPriv().makeWrappedSurfaceContext( | |
| fProxy, fColorSpace); | |
| 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<SkImage> SkImage_Gpu::onMakeSubset(const SkIRect& subset) const { | |
| GrSurfaceDesc desc; | |
| desc.fWidth = subset.width(); | |
| desc.fHeight = subset.height(); | |
| desc.fConfig = fProxy->config(); | |
| sk_sp<GrSurfaceContext> sContext(fContext->contextPriv().makeDeferredSurfaceContext( | |
| desc, fProxy->origin(), GrMipMapped::kNo, SkBackingFit::kExact, fBudgeted)); | |
| if (!sContext) { | |
| return nullptr; | |
| } | |
| if (!sContext->copy(fProxy.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(), | |
| fColorSpace, fBudgeted); | |
| } | |
| /////////////////////////////////////////////////////////////////////////////////////////////////// | |
| static sk_sp<SkImage> new_wrapped_texture_common(GrContext* ctx, | |
| const GrBackendTexture& backendTex, | |
| GrSurfaceOrigin origin, | |
| SkAlphaType at, sk_sp<SkColorSpace> colorSpace, | |
| GrWrapOwnership ownership, | |
| SkImage::TextureReleaseProc releaseProc, | |
| SkImage::ReleaseContext releaseCtx) { | |
| if (!backendTex.isValid() || backendTex.width() <= 0 || backendTex.height() <= 0) { | |
| return nullptr; | |
| } | |
| GrProxyProvider* proxyProvider = ctx->contextPriv().proxyProvider(); | |
| sk_sp<GrTextureProxy> proxy = proxyProvider->wrapBackendTexture(backendTex, origin, ownership, | |
| releaseProc, releaseCtx); | |
| if (!proxy) { | |
| return nullptr; | |
| } | |
| return sk_make_sp<SkImage_Gpu>(sk_ref_sp(ctx), kNeedNewImageUniqueID, at, std::move(proxy), | |
| std::move(colorSpace), SkBudgeted::kNo); | |
| } | |
| bool validate_backend_texture(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; | |
| } | |
| return ctx->contextPriv().caps()->validateBackendTexture(tex, ct, config); | |
| } | |
| sk_sp<SkImage> SkImage::MakeFromTexture(GrContext* ctx, | |
| const GrBackendTexture& tex, GrSurfaceOrigin origin, | |
| SkColorType ct, SkAlphaType at, sk_sp<SkColorSpace> cs, | |
| TextureReleaseProc releaseP, ReleaseContext releaseC) { | |
| if (!ctx) { | |
| return nullptr; | |
| } | |
| GrBackendTexture texCopy = tex; | |
| if (!validate_backend_texture(ctx, texCopy, &texCopy.fConfig, ct, at, cs)) { | |
| return nullptr; | |
| } | |
| return new_wrapped_texture_common(ctx, texCopy, origin, at, std::move(cs), | |
| kBorrow_GrWrapOwnership, releaseP, releaseC); | |
| } | |
| sk_sp<SkImage> SkImage::MakeFromAdoptedTexture(GrContext* ctx, | |
| const GrBackendTexture& tex, GrSurfaceOrigin origin, | |
| SkColorType ct, SkAlphaType at, | |
| sk_sp<SkColorSpace> cs) { | |
| if (!ctx || !ctx->contextPriv().resourceProvider()) { | |
| // We have a DDL context and we don't support adopted textures for them. | |
| return nullptr; | |
| } | |
| GrBackendTexture texCopy = tex; | |
| if (!validate_backend_texture(ctx, texCopy, &texCopy.fConfig, ct, at, cs)) { | |
| return nullptr; | |
| } | |
| return new_wrapped_texture_common(ctx, texCopy, origin, at, std::move(cs), | |
| kAdopt_GrWrapOwnership, nullptr, nullptr); | |
| } | |
| sk_sp<SkImage> SkImage_Gpu::MakeFromYUVATexturesCopyImpl(GrContext* ctx, | |
| SkYUVColorSpace colorSpace, | |
| const GrBackendTexture yuvaTextures[], | |
| SkYUVAIndex yuvaIndices[4], | |
| SkISize size, | |
| GrSurfaceOrigin origin, | |
| sk_sp<SkColorSpace> imageColorSpace) { | |
| GrProxyProvider* proxyProvider = ctx->contextPriv().proxyProvider(); | |
| // Right now this still only deals with YUV and NV12 formats. Assuming that YUV has different | |
| // textures for U and V planes, while NV12 uses same texture for U and V planes. | |
| bool nv12 = (yuvaIndices[1].fIndex == yuvaIndices[2].fIndex); | |
| auto ct = nv12 ? kRGBA_8888_SkColorType : kAlpha_8_SkColorType; | |
| // 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 i = 0; i < 4; ++i) { | |
| // Validate that the yuvaIndices refer to valid backend textures. | |
| SkYUVAIndex& yuvaIndex = yuvaIndices[i]; | |
| if (i == 3 && yuvaIndex.fIndex == -1) { | |
| // Meaning the A plane isn't passed in. | |
| continue; | |
| } | |
| if (yuvaIndex.fIndex == -1 || yuvaIndex.fIndex > 3) { | |
| // Y plane, U plane, and V plane must refer to image sources being passed in. There are | |
| // at most 4 images sources being passed in, could not have a index more than 3. | |
| return nullptr; | |
| } | |
| if (!yuvaTexturesCopy[yuvaIndex.fIndex].isValid()) { | |
| yuvaTexturesCopy[yuvaIndex.fIndex] = yuvaTextures[yuvaIndex.fIndex]; | |
| // TODO: Instead of using assumption about whether it is NV12 format to guess colorType, | |
| // actually use channel information here. | |
| if (!validate_backend_texture(ctx, yuvaTexturesCopy[i], &yuvaTexturesCopy[i].fConfig, | |
| ct, kPremul_SkAlphaType, nullptr)) { | |
| return nullptr; | |
| } | |
| } | |
| // TODO: Check that for each plane, the channel actually exist in the image source we are | |
| // reading from. | |
| } | |
| sk_sp<GrTextureProxy> tempTextureProxies[4]; | |
| for (int i = 0; i < 4; ++i) { | |
| // Fill in tempTextureProxies to avoid duplicate texture proxies. | |
| int textureIndex = yuvaIndices[i].fIndex; | |
| // Safely ignore since this means we are missing the A plane. | |
| if (textureIndex == -1) { | |
| SkASSERT(3 == i); | |
| continue; | |
| } | |
| if (!tempTextureProxies[textureIndex]) { | |
| SkASSERT(yuvaTexturesCopy[textureIndex].isValid()); | |
| tempTextureProxies[textureIndex] = | |
| proxyProvider->wrapBackendTexture(yuvaTexturesCopy[textureIndex], origin); | |
| } | |
| } | |
| sk_sp<GrTextureProxy> yProxy = tempTextureProxies[yuvaIndices[0].fIndex]; | |
| sk_sp<GrTextureProxy> uProxy = tempTextureProxies[yuvaIndices[1].fIndex]; | |
| sk_sp<GrTextureProxy> vProxy = tempTextureProxies[yuvaIndices[2].fIndex]; | |
| if (!yProxy || !uProxy || !vProxy) { | |
| return nullptr; | |
| } | |
| const int width = size.width(); | |
| const int height = size.height(); | |
| // Needs to be a render target in order to draw to it for the yuv->rgb conversion. | |
| sk_sp<GrRenderTargetContext> renderTargetContext( | |
| ctx->contextPriv().makeDeferredRenderTargetContext( | |
| SkBackingFit::kExact, width, height, kRGBA_8888_GrPixelConfig, | |
| std::move(imageColorSpace), 1, GrMipMapped::kNo, origin)); | |
| if (!renderTargetContext) { | |
| return nullptr; | |
| } | |
| GrPaint paint; | |
| paint.setPorterDuffXPFactory(SkBlendMode::kSrc); | |
| // TODO: Modify the fragment processor to sample from different channel instead of taking nv12 | |
| // bool. | |
| paint.addColorFragmentProcessor(GrYUVtoRGBEffect::Make(std::move(yProxy), std::move(uProxy), | |
| std::move(vProxy), colorSpace, nv12)); | |
| const SkRect rect = SkRect::MakeIWH(width, height); | |
| renderTargetContext->drawRect(GrNoClip(), std::move(paint), GrAA::kNo, SkMatrix::I(), rect); | |
| if (!renderTargetContext->asSurfaceProxy()) { | |
| return nullptr; | |
| } | |
| // DDL TODO: in the promise image version we must not flush here | |
| ctx->contextPriv().flushSurfaceWrites(renderTargetContext->asSurfaceProxy()); | |
| // MDB: this call is okay bc we know 'renderTargetContext' was exact | |
| return sk_make_sp<SkImage_Gpu>(sk_ref_sp(ctx), kNeedNewImageUniqueID, kOpaque_SkAlphaType, | |
| renderTargetContext->asTextureProxyRef(), | |
| renderTargetContext->colorSpaceInfo().refColorSpace(), | |
| SkBudgeted::kYes); | |
| } | |
| sk_sp<SkImage> SkImage::MakeFromYUVTexturesCopy(GrContext* ctx, SkYUVColorSpace colorSpace, | |
| const GrBackendTexture yuvTextures[3], | |
| GrSurfaceOrigin origin, | |
| sk_sp<SkColorSpace> imageColorSpace) { | |
| // TODO: SkImageSourceChannel input is being ingored right now. Setup correctly in the future. | |
| SkYUVAIndex yuvaIndices[4] = { | |
| SkYUVAIndex{0, SkImageSourceChannel::kLastEnum_SkImageSourceChannel}, | |
| SkYUVAIndex{1, SkImageSourceChannel::kLastEnum_SkImageSourceChannel}, | |
| SkYUVAIndex{2, SkImageSourceChannel::kLastEnum_SkImageSourceChannel}, | |
| SkYUVAIndex{-1, SkImageSourceChannel::kLastEnum_SkImageSourceChannel}}; | |
| SkISize size{yuvTextures[0].width(), yuvTextures[0].height()}; | |
| return SkImage_Gpu::MakeFromYUVATexturesCopyImpl(ctx, colorSpace, yuvTextures, yuvaIndices, | |
| size, origin, std::move(imageColorSpace)); | |
| } | |
| sk_sp<SkImage> SkImage::MakeFromNV12TexturesCopy(GrContext* ctx, SkYUVColorSpace colorSpace, | |
| const GrBackendTexture nv12Textures[2], | |
| GrSurfaceOrigin origin, | |
| sk_sp<SkColorSpace> imageColorSpace) { | |
| // TODO: SkImageSourceChannel input is being ingored right now. Setup correctly in the future. | |
| SkYUVAIndex yuvaIndices[4] = { | |
| SkYUVAIndex{0, SkImageSourceChannel::kLastEnum_SkImageSourceChannel}, | |
| SkYUVAIndex{1, SkImageSourceChannel::kLastEnum_SkImageSourceChannel}, | |
| SkYUVAIndex{1, SkImageSourceChannel::kLastEnum_SkImageSourceChannel}, | |
| SkYUVAIndex{-1, SkImageSourceChannel::kLastEnum_SkImageSourceChannel}}; | |
| SkISize size{nv12Textures[0].width(), nv12Textures[0].height()}; | |
| return SkImage_Gpu::MakeFromYUVATexturesCopyImpl(ctx, colorSpace, nv12Textures, yuvaIndices, | |
| size, origin, std::move(imageColorSpace)); | |
| } | |
| static sk_sp<SkImage> create_image_from_producer(GrContext* context, GrTextureProducer* producer, | |
| SkAlphaType at, uint32_t id, | |
| SkColorSpace* dstColorSpace, | |
| GrMipMapped mipMapped) { | |
| sk_sp<SkColorSpace> texColorSpace; | |
| sk_sp<GrTextureProxy> proxy(producer->refTextureProxy(mipMapped, dstColorSpace, | |
| &texColorSpace)); | |
| if (!proxy) { | |
| return nullptr; | |
| } | |
| return sk_make_sp<SkImage_Gpu>(sk_ref_sp(context), id, at, std::move(proxy), | |
| std::move(texColorSpace), SkBudgeted::kNo); | |
| } | |
| sk_sp<SkImage> SkImage::makeTextureImage(GrContext* context, SkColorSpace* dstColorSpace, | |
| GrMipMapped mipMapped) const { | |
| if (!context) { | |
| return nullptr; | |
| } | |
| if (GrContext* incumbent = as_IB(this)->context()) { | |
| if (incumbent != context) { | |
| return nullptr; | |
| } | |
| sk_sp<GrTextureProxy> proxy = as_IB(this)->asTextureProxyRef(); | |
| SkASSERT(proxy); | |
| if (GrMipMapped::kNo == mipMapped || proxy->mipMapped() == mipMapped) { | |
| return sk_ref_sp(const_cast<SkImage*>(this)); | |
| } | |
| GrTextureAdjuster adjuster(context, std::move(proxy), this->alphaType(), | |
| this->uniqueID(), this->colorSpace()); | |
| return create_image_from_producer(context, &adjuster, this->alphaType(), | |
| this->uniqueID(), dstColorSpace, mipMapped); | |
| } | |
| if (this->isLazyGenerated()) { | |
| GrImageTextureMaker maker(context, this, kDisallow_CachingHint); | |
| return create_image_from_producer(context, &maker, this->alphaType(), | |
| this->uniqueID(), dstColorSpace, mipMapped); | |
| } | |
| if (const SkBitmap* bmp = as_IB(this)->onPeekBitmap()) { | |
| GrBitmapTextureMaker maker(context, *bmp); | |
| return create_image_from_producer(context, &maker, this->alphaType(), | |
| this->uniqueID(), dstColorSpace, mipMapped); | |
| } | |
| return nullptr; | |
| } | |
| /////////////////////////////////////////////////////////////////////////////////////////////////// | |
| /** | |
| * This helper holds the normal hard ref for the Release proc as well as a hard ref on the DoneProc. | |
| * Thus when a GrTexture is being released, it will unref both the ReleaseProc and DoneProc. | |
| */ | |
| class PromiseReleaseProcHelper : public GrReleaseProcHelper { | |
| public: | |
| PromiseReleaseProcHelper(SkImage_Gpu::TextureReleaseProc releaseProc, | |
| SkImage_Gpu::TextureContext context, | |
| sk_sp<GrReleaseProcHelper> doneHelper) | |
| : INHERITED(releaseProc, context) | |
| , fDoneProcHelper(std::move(doneHelper)) {} | |
| void weak_dispose() const override { | |
| // Call the inherited weak_dispose first so that we call the ReleaseProc before the DoneProc | |
| // if we hold the last ref to the DoneProc. | |
| INHERITED::weak_dispose(); | |
| fDoneProcHelper.reset(); | |
| } | |
| private: | |
| mutable sk_sp<GrReleaseProcHelper> fDoneProcHelper; | |
| typedef GrReleaseProcHelper INHERITED; | |
| }; | |
| /** | |
| * This helper class manages the ref counting for the the ReleaseProc and DoneProc for promise | |
| * images. It holds a weak ref on the ReleaseProc (hard refs are owned by GrTextures). The weak ref | |
| * allows us to reuse an outstanding ReleaseProc (because we dropped our GrTexture but the GrTexture | |
| * isn't done on the GPU) without needing to call FulfillProc again. It also holds a hard ref on the | |
| * DoneProc. The idea is that after every flush we may call the ReleaseProc so that the client can | |
| * free up their GPU memory if they want to. The life time of the DoneProc matches that of any | |
| * outstanding ReleaseProc as well as the PromiseImageHelper. Thus we won't call the DoneProc until | |
| * all ReleaseProcs are finished and we are finished with the PromiseImageHelper (i.e. won't call | |
| * FulfillProc again). | |
| */ | |
| class PromiseImageHelper { | |
| public: | |
| PromiseImageHelper(SkImage_Gpu::TextureFulfillProc fulFillProc, | |
| SkImage_Gpu::TextureReleaseProc releaseProc, | |
| SkImage_Gpu::PromiseDoneProc doneProc, | |
| SkImage_Gpu::TextureContext context) | |
| : fFulfillProc(fulFillProc) | |
| , fReleaseProc(releaseProc) | |
| , fContext(context) | |
| , fDoneHelper(new GrReleaseProcHelper(doneProc, context)) {} | |
| void reset() { | |
| this->resetReleaseHelper(); | |
| fDoneHelper.reset(); | |
| } | |
| sk_sp<GrTexture> getTexture(GrResourceProvider* resourceProvider, GrPixelConfig config) { | |
| // Releases the promise helper if there are no outstanding hard refs. This means that we | |
| // don't have any ReleaseProcs waiting to be called so we will need to do a fulfill. | |
| if (fReleaseHelper && fReleaseHelper->weak_expired()) { | |
| this->resetReleaseHelper(); | |
| } | |
| sk_sp<GrTexture> tex; | |
| if (!fReleaseHelper) { | |
| fFulfillProc(fContext, &fBackendTex); | |
| fBackendTex.fConfig = config; | |
| if (!fBackendTex.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. | |
| fReleaseProc(fContext); | |
| return sk_sp<GrTexture>(); | |
| } | |
| tex = resourceProvider->wrapBackendTexture(fBackendTex, kBorrow_GrWrapOwnership); | |
| if (!tex) { | |
| // 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. | |
| fReleaseProc(fContext); | |
| return sk_sp<GrTexture>(); | |
| } | |
| fReleaseHelper = new PromiseReleaseProcHelper(fReleaseProc, fContext, fDoneHelper); | |
| // Take a weak ref | |
| fReleaseHelper->weak_ref(); | |
| } else { | |
| SkASSERT(fBackendTex.isValid()); | |
| tex = resourceProvider->wrapBackendTexture(fBackendTex, kBorrow_GrWrapOwnership); | |
| if (!tex) { | |
| // We weren't able to make a texture here, but since we are in this branch | |
| // of the calls (promiseHelper.fReleaseHelper is valid) there is already a | |
| // texture out there which will call the release proc so we don't need to | |
| // call it here. | |
| return sk_sp<GrTexture>(); | |
| } | |
| SkAssertResult(fReleaseHelper->try_ref()); | |
| } | |
| SkASSERT(tex); | |
| // Pass the hard ref off to the texture | |
| tex->setRelease(sk_sp<GrReleaseProcHelper>(fReleaseHelper)); | |
| return tex; | |
| } | |
| private: | |
| // Weak unrefs fReleaseHelper and sets it to null | |
| void resetReleaseHelper() { | |
| if (fReleaseHelper) { | |
| fReleaseHelper->weak_unref(); | |
| fReleaseHelper = nullptr; | |
| } | |
| } | |
| SkImage_Gpu::TextureFulfillProc fFulfillProc; | |
| SkImage_Gpu::TextureReleaseProc fReleaseProc; | |
| SkImage_Gpu::TextureContext fContext; | |
| // We cache the GrBackendTexture so that if we deleted the GrTexture but the the release proc | |
| // has yet not been called (this can happen on Vulkan), then we can create a new texture without | |
| // needing to call the fulfill proc again. | |
| GrBackendTexture fBackendTex; | |
| // The fReleaseHelper is used to track a weak ref on the release proc. This helps us make sure | |
| // we are always pairing fulfill and release proc calls correctly. | |
| PromiseReleaseProcHelper* fReleaseHelper = nullptr; | |
| // We don't want to call the fDoneHelper until we are done with the PromiseImageHelper and all | |
| // ReleaseHelpers are finished. Thus we hold a hard ref here and we will pass a hard ref to each | |
| // fReleaseHelper we make. | |
| sk_sp<GrReleaseProcHelper> fDoneHelper; | |
| }; | |
| static GrTextureType TextureTypeFromBackendFormat(const GrBackendFormat& backendFormat) { | |
| if (const GrGLenum* target = backendFormat.getGLTarget()) { | |
| return GrGLTexture::TextureTypeFromTarget(*target); | |
| } | |
| return GrTextureType::k2D; | |
| } | |
| sk_sp<SkImage> SkImage_Gpu::MakePromiseTexture(GrContext* context, | |
| const GrBackendFormat& backendFormat, | |
| int width, | |
| int height, | |
| GrMipMapped mipMapped, | |
| GrSurfaceOrigin origin, | |
| SkColorType colorType, | |
| SkAlphaType alphaType, | |
| sk_sp<SkColorSpace> colorSpace, | |
| TextureFulfillProc textureFulfillProc, | |
| TextureReleaseProc textureReleaseProc, | |
| PromiseDoneProc promiseDoneProc, | |
| TextureContext textureContext) { | |
| if (!context) { | |
| return nullptr; | |
| } | |
| if (width <= 0 || height <= 0) { | |
| return nullptr; | |
| } | |
| if (!textureFulfillProc || !textureReleaseProc || !promiseDoneProc) { | |
| return nullptr; | |
| } | |
| SkImageInfo info = SkImageInfo::Make(width, height, colorType, alphaType, colorSpace); | |
| if (!SkImageInfoIsValid(info)) { | |
| return nullptr; | |
| } | |
| GrPixelConfig config = kUnknown_GrPixelConfig; | |
| if (!context->contextPriv().caps()->getConfigFromBackendFormat(backendFormat, colorType, | |
| &config)) { | |
| return nullptr; | |
| } | |
| GrTextureType textureType = TextureTypeFromBackendFormat(backendFormat); | |
| if (mipMapped == GrMipMapped::kYes && GrTextureTypeHasRestrictedSampling(textureType)) { | |
| // It is invalid to have a GL_TEXTURE_EXTERNAL or GL_TEXTURE_RECTANGLE and have mips as | |
| // well. | |
| return nullptr; | |
| } | |
| GrProxyProvider* proxyProvider = context->contextPriv().proxyProvider(); | |
| GrSurfaceDesc desc; | |
| desc.fWidth = width; | |
| desc.fHeight = height; | |
| desc.fConfig = config; | |
| PromiseImageHelper promiseHelper(textureFulfillProc, textureReleaseProc, promiseDoneProc, | |
| textureContext); | |
| sk_sp<GrTextureProxy> proxy = proxyProvider->createLazyProxy( | |
| [promiseHelper, config](GrResourceProvider* resourceProvider) mutable { | |
| if (!resourceProvider) { | |
| promiseHelper.reset(); | |
| return sk_sp<GrTexture>(); | |
| } | |
| return promiseHelper.getTexture(resourceProvider, config); | |
| }, | |
| desc, origin, mipMapped, textureType, GrInternalSurfaceFlags::kNone, | |
| SkBackingFit::kExact, SkBudgeted::kNo, | |
| GrSurfaceProxy::LazyInstantiationType::kUninstantiate); | |
| if (!proxy) { | |
| return nullptr; | |
| } | |
| return sk_make_sp<SkImage_Gpu>(sk_ref_sp(context), kNeedNewImageUniqueID, alphaType, | |
| std::move(proxy), std::move(colorSpace), SkBudgeted::kNo); | |
| } | |
| /////////////////////////////////////////////////////////////////////////////////////////////////// | |
| sk_sp<SkImage> SkImage::MakeCrossContextFromEncoded(GrContext* context, sk_sp<SkData> encoded, | |
| bool buildMips, SkColorSpace* dstColorSpace, | |
| bool limitToMaxTextureSize) { | |
| sk_sp<SkImage> codecImage = SkImage::MakeFromEncoded(std::move(encoded)); | |
| if (!codecImage) { | |
| return nullptr; | |
| } | |
| // Some backends or drivers don't support (safely) moving resources between contexts | |
| if (!context || !context->contextPriv().caps()->crossContextTextureSupport()) { | |
| return codecImage; | |
| } | |
| auto maxTextureSize = context->contextPriv().caps()->maxTextureSize(); | |
| if (limitToMaxTextureSize && | |
| (codecImage->width() > maxTextureSize || codecImage->height() > maxTextureSize)) { | |
| SkAutoPixmapStorage pmap; | |
| SkImageInfo info = as_IB(codecImage)->onImageInfo(); | |
| if (!dstColorSpace) { | |
| info = info.makeColorSpace(nullptr); | |
| } | |
| if (!pmap.tryAlloc(info) || !codecImage->readPixels(pmap, 0, 0, kDisallow_CachingHint)) { | |
| return nullptr; | |
| } | |
| return MakeCrossContextFromPixmap(context, pmap, buildMips, dstColorSpace, true); | |
| } | |
| // Turn the codec image into a GrTextureProxy | |
| GrImageTextureMaker maker(context, codecImage.get(), kDisallow_CachingHint); | |
| sk_sp<SkColorSpace> texColorSpace; | |
| GrSamplerState samplerState( | |
| GrSamplerState::WrapMode::kClamp, | |
| buildMips ? GrSamplerState::Filter::kMipMap : GrSamplerState::Filter::kBilerp); | |
| sk_sp<GrTextureProxy> proxy( | |
| maker.refTextureProxyForParams(samplerState, dstColorSpace, &texColorSpace, nullptr)); | |
| if (!proxy) { | |
| return codecImage; | |
| } | |
| if (!proxy->instantiate(context->contextPriv().resourceProvider())) { | |
| return codecImage; | |
| } | |
| sk_sp<GrTexture> texture = sk_ref_sp(proxy->peekTexture()); | |
| // Flush any writes or uploads | |
| context->contextPriv().prepareSurfaceForExternalIO(proxy.get()); | |
| GrGpu* gpu = context->contextPriv().getGpu(); | |
| sk_sp<GrSemaphore> sema = gpu->prepareTextureForCrossContextUsage(texture.get()); | |
| auto gen = GrBackendTextureImageGenerator::Make(std::move(texture), proxy->origin(), | |
| std::move(sema), | |
| as_IB(codecImage)->onImageInfo().colorType(), | |
| codecImage->alphaType(), | |
| std::move(texColorSpace)); | |
| return SkImage::MakeFromGenerator(std::move(gen)); | |
| } | |
| sk_sp<SkImage> SkImage::MakeCrossContextFromPixmap(GrContext* context, | |
| const SkPixmap& originalPixmap, bool buildMips, | |
| SkColorSpace* dstColorSpace, | |
| bool limitToMaxTextureSize) { | |
| // Some backends or drivers don't support (safely) moving resources between contexts | |
| if (!context || !context->contextPriv().caps()->crossContextTextureSupport()) { | |
| return SkImage::MakeRasterCopy(originalPixmap); | |
| } | |
| // If we don't have access to the resource provider and gpu (i.e. in a DDL context) we will not | |
| // be able to make everything needed for a GPU CrossContext image. Thus return a raster copy | |
| // instead. | |
| if (!context->contextPriv().resourceProvider()) { | |
| return SkImage::MakeRasterCopy(originalPixmap); | |
| } | |
| const SkPixmap* pixmap = &originalPixmap; | |
| SkAutoPixmapStorage resized; | |
| int maxTextureSize = context->contextPriv().caps()->maxTextureSize(); | |
| int maxDim = SkTMax(originalPixmap.width(), originalPixmap.height()); | |
| if (limitToMaxTextureSize && maxDim > maxTextureSize) { | |
| float scale = static_cast<float>(maxTextureSize) / maxDim; | |
| int newWidth = SkTMin(static_cast<int>(originalPixmap.width() * scale), maxTextureSize); | |
| int newHeight = SkTMin(static_cast<int>(originalPixmap.height() * scale), maxTextureSize); | |
| SkImageInfo info = originalPixmap.info().makeWH(newWidth, newHeight); | |
| if (!resized.tryAlloc(info) || !originalPixmap.scalePixels(resized, kLow_SkFilterQuality)) { | |
| return nullptr; | |
| } | |
| pixmap = &resized; | |
| } | |
| GrProxyProvider* proxyProvider = context->contextPriv().proxyProvider(); | |
| // Turn the pixmap into a GrTextureProxy | |
| sk_sp<GrTextureProxy> proxy; | |
| if (buildMips) { | |
| SkBitmap bmp; | |
| bmp.installPixels(*pixmap); | |
| proxy = proxyProvider->createMipMapProxyFromBitmap(bmp); | |
| } else { | |
| if (SkImageInfoIsValid(pixmap->info())) { | |
| ATRACE_ANDROID_FRAMEWORK("Upload Texture [%ux%u]", pixmap->width(), pixmap->height()); | |
| // We don't need a release proc on the data in pixmap since we know we are in a | |
| // GrContext that has a resource provider. Thus the createTextureProxy call will | |
| // immediately upload the data. | |
| sk_sp<SkImage> image = SkImage::MakeFromRaster(*pixmap, nullptr, nullptr); | |
| proxy = proxyProvider->createTextureProxy(std::move(image), kNone_GrSurfaceFlags, 1, | |
| SkBudgeted::kYes, SkBackingFit::kExact); | |
| } | |
| } | |
| if (!proxy) { | |
| return SkImage::MakeRasterCopy(*pixmap); | |
| } | |
| sk_sp<GrTexture> texture = sk_ref_sp(proxy->peekTexture()); | |
| // Flush any writes or uploads | |
| context->contextPriv().prepareSurfaceForExternalIO(proxy.get()); | |
| GrGpu* gpu = context->contextPriv().getGpu(); | |
| sk_sp<GrSemaphore> sema = gpu->prepareTextureForCrossContextUsage(texture.get()); | |
| auto gen = GrBackendTextureImageGenerator::Make(std::move(texture), proxy->origin(), | |
| std::move(sema), pixmap->colorType(), | |
| pixmap->alphaType(), | |
| pixmap->info().refColorSpace()); | |
| return SkImage::MakeFromGenerator(std::move(gen)); | |
| } | |
| #if defined(SK_BUILD_FOR_ANDROID) && __ANDROID_API__ >= 26 | |
| sk_sp<SkImage> SkImage::MakeFromAHardwareBuffer(AHardwareBuffer* graphicBuffer, SkAlphaType at, | |
| sk_sp<SkColorSpace> cs) { | |
| auto gen = GrAHardwareBufferImageGenerator::Make(graphicBuffer, at, cs); | |
| return SkImage::MakeFromGenerator(std::move(gen)); | |
| } | |
| #endif | |
| /////////////////////////////////////////////////////////////////////////////////////////////////// | |
| bool SkImage::MakeBackendTextureFromSkImage(GrContext* ctx, | |
| sk_sp<SkImage> image, | |
| GrBackendTexture* backendTexture, | |
| BackendTextureReleaseProc* releaseProc) { | |
| if (!image || !ctx || !backendTexture || !releaseProc) { | |
| return false; | |
| } | |
| // Ensure we have a texture backed image. | |
| if (!image->isTextureBacked()) { | |
| image = image->makeTextureImage(ctx, nullptr); | |
| if (!image) { | |
| return false; | |
| } | |
| } | |
| GrTexture* texture = image->getTexture(); | |
| if (!texture) { | |
| // In context-loss cases, we may not have a texture. | |
| return false; | |
| } | |
| // If the image's context doesn't match the provided context, fail. | |
| if (texture->getContext() != ctx) { | |
| return false; | |
| } | |
| // Flush any pending IO on the texture. | |
| ctx->contextPriv().prepareSurfaceForExternalIO(as_IB(image)->peekProxy()); | |
| SkASSERT(!texture->surfacePriv().hasPendingIO()); | |
| // We must make a copy of the image if the image is not unique, if the GrTexture owned by the | |
| // image is not unique, or if the texture wraps an external object. | |
| if (!image->unique() || !texture->surfacePriv().hasUniqueRef() || | |
| texture->resourcePriv().refsWrappedObjects()) { | |
| // onMakeSubset will always copy the image. | |
| image = as_IB(image)->onMakeSubset(image->bounds()); | |
| if (!image) { | |
| return false; | |
| } | |
| texture = image->getTexture(); | |
| if (!texture) { | |
| return false; | |
| } | |
| // Flush to ensure that the copy is completed before we return the texture. | |
| ctx->contextPriv().prepareSurfaceForExternalIO(as_IB(image)->peekProxy()); | |
| SkASSERT(!texture->surfacePriv().hasPendingIO()); | |
| } | |
| SkASSERT(!texture->resourcePriv().refsWrappedObjects()); | |
| SkASSERT(texture->surfacePriv().hasUniqueRef()); | |
| SkASSERT(image->unique()); | |
| // Take a reference to the GrTexture and release the image. | |
| sk_sp<GrTexture> textureRef(SkSafeRef(texture)); | |
| image = nullptr; | |
| // Steal the backend texture from the GrTexture, releasing the GrTexture in the process. | |
| return GrTexture::StealBackendTexture(std::move(textureRef), backendTexture, releaseProc); | |
| } | |
| /////////////////////////////////////////////////////////////////////////////////////////////////// | |
| sk_sp<SkImage> SkImage_Gpu::onMakeColorSpace(sk_sp<SkColorSpace> target, SkColorType) const { | |
| sk_sp<SkColorSpace> srcSpace = fColorSpace; | |
| if (!fColorSpace) { | |
| if (target->isSRGB()) { | |
| return sk_ref_sp(const_cast<SkImage*>((SkImage*)this)); | |
| } | |
| srcSpace = SkColorSpace::MakeSRGB(); | |
| } | |
| auto xform = GrColorSpaceXformEffect::Make(srcSpace.get(), this->alphaType(), target.get()); | |
| if (!xform) { | |
| return sk_ref_sp(const_cast<SkImage_Gpu*>(this)); | |
| } | |
| sk_sp<GrRenderTargetContext> renderTargetContext( | |
| fContext->contextPriv().makeDeferredRenderTargetContext( | |
| SkBackingFit::kExact, this->width(), this->height(), | |
| kRGBA_8888_GrPixelConfig, nullptr)); | |
| if (!renderTargetContext) { | |
| return nullptr; | |
| } | |
| GrPaint paint; | |
| paint.setPorterDuffXPFactory(SkBlendMode::kSrc); | |
| paint.addColorTextureProcessor(fProxy, SkMatrix::I()); | |
| paint.addColorFragmentProcessor(std::move(xform)); | |
| const SkRect rect = SkRect::MakeIWH(this->width(), this->height()); | |
| renderTargetContext->drawRect(GrNoClip(), std::move(paint), GrAA::kNo, SkMatrix::I(), rect); | |
| if (!renderTargetContext->asTextureProxy()) { | |
| return nullptr; | |
| } | |
| SkAlphaType newAlphaType = (kUnpremul_SkAlphaType == fAlphaType) ? kPremul_SkAlphaType | |
| : fAlphaType; | |
| // MDB: this call is okay bc we know 'renderTargetContext' was exact | |
| return sk_make_sp<SkImage_Gpu>(fContext, kNeedNewImageUniqueID, | |
| newAlphaType, renderTargetContext->asTextureProxyRef(), | |
| std::move(target), fBudgeted); | |
| } | |
| bool SkImage_Gpu::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; | |
| } |