sk_sp<GrTextureProxy> GrTextureProducer::CopyOnGpu(GrContext* context, sk_sp<GrTextureProxy> inputProxy, const CopyParams& copyParams, bool dstWillRequireMipMaps) { SkASSERT(context); const SkRect dstRect = SkRect::MakeIWH(copyParams.fWidth, copyParams.fHeight); GrMipMapped mipMapped = dstWillRequireMipMaps ? GrMipMapped::kYes : GrMipMapped::kNo; SkRect localRect = SkRect::MakeWH(inputProxy->width(), inputProxy->height()); bool needsDomain = false; bool resizing = false; if (copyParams.fFilter != GrSamplerState::Filter::kNearest) { bool resizing = localRect.width() != dstRect.width() || localRect.height() != dstRect.height(); needsDomain = resizing && !GrProxyProvider::IsFunctionallyExact(inputProxy.get()); } if (copyParams.fFilter == GrSamplerState::Filter::kNearest && !needsDomain && !resizing && dstWillRequireMipMaps) { sk_sp<GrTextureProxy> proxy = GrCopyBaseMipMapToTextureProxy(context, inputProxy.get()); if (proxy) { return proxy; } } sk_sp<GrRenderTargetContext> copyRTC = context->contextPriv().makeDeferredRenderTargetContextWithFallback( SkBackingFit::kExact, dstRect.width(), dstRect.height(), inputProxy->config(), nullptr, 1, mipMapped, inputProxy->origin()); if (!copyRTC) { return nullptr; } GrPaint paint; if (needsDomain) { const SkRect domain = localRect.makeInset(0.5f, 0.5f); // This would cause us to read values from outside the subset. Surely, the caller knows // better! SkASSERT(copyParams.fFilter != GrSamplerState::Filter::kMipMap); paint.addColorFragmentProcessor( GrTextureDomainEffect::Make(std::move(inputProxy), SkMatrix::I(), domain, GrTextureDomain::kClamp_Mode, copyParams.fFilter)); } else { GrSamplerState samplerState(GrSamplerState::WrapMode::kClamp, copyParams.fFilter); paint.addColorTextureProcessor(std::move(inputProxy), SkMatrix::I(), samplerState); } paint.setPorterDuffXPFactory(SkBlendMode::kSrc); copyRTC->fillRectToRect(GrNoClip(), std::move(paint), GrAA::kNo, SkMatrix::I(), dstRect, localRect); return copyRTC->asTextureProxyRef(); }