| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "src/gpu/GrSurfaceContext.h" |
| |
| #include "include/private/GrRecordingContext.h" |
| #include "src/core/SkAutoPixmapStorage.h" |
| #include "src/gpu/GrAuditTrail.h" |
| #include "src/gpu/GrClip.h" |
| #include "src/gpu/GrContextPriv.h" |
| #include "src/gpu/GrDataUtils.h" |
| #include "src/gpu/GrDrawingManager.h" |
| #include "src/gpu/GrGpu.h" |
| #include "src/gpu/GrImageInfo.h" |
| #include "src/gpu/GrRecordingContextPriv.h" |
| #include "src/gpu/GrRenderTargetContext.h" |
| #include "src/gpu/GrSurfaceContextPriv.h" |
| #include "src/gpu/GrSurfacePriv.h" |
| #include "src/gpu/SkGr.h" |
| #include "src/gpu/effects/GrBicubicEffect.h" |
| |
| #define ASSERT_SINGLE_OWNER \ |
| SkDEBUGCODE(GrSingleOwner::AutoEnforce debug_SingleOwner(this->singleOwner());) |
| #define RETURN_FALSE_IF_ABANDONED if (this->fContext->priv().abandoned()) { return false; } |
| |
| std::unique_ptr<GrSurfaceContext> GrSurfaceContext::Make(GrRecordingContext* context, |
| GrSurfaceProxyView readView, |
| GrColorType colorType, |
| SkAlphaType alphaType, |
| sk_sp<SkColorSpace> colorSpace) { |
| // It is probably not necessary to check if the context is abandoned here since uses of the |
| // GrSurfaceContext which need the context will mostly likely fail later on without an issue. |
| // However having this hear adds some reassurance in case there is a path doesn't handle an |
| // abandoned context correctly. It also lets us early out of some extra work. |
| if (context->priv().abandoned()) { |
| return nullptr; |
| } |
| GrSurfaceProxy* proxy = readView.proxy(); |
| SkASSERT(proxy && proxy->asTextureProxy()); |
| |
| std::unique_ptr<GrSurfaceContext> surfaceContext; |
| if (proxy->asRenderTargetProxy()) { |
| SkASSERT(kPremul_SkAlphaType == alphaType || kOpaque_SkAlphaType == alphaType); |
| // Will we ever want a swizzle that is not the default output swizzle for the format and |
| // colorType here? If so we will need to manually pass that in. |
| GrSwizzle outSwizzle = context->priv().caps()->getOutputSwizzle(proxy->backendFormat(), |
| colorType); |
| GrSurfaceProxyView outputView(readView.refProxy(), readView.origin(), outSwizzle); |
| surfaceContext.reset(new GrRenderTargetContext(context, std::move(readView), |
| std::move(outputView), colorType, |
| std::move(colorSpace), nullptr)); |
| } else { |
| surfaceContext.reset(new GrSurfaceContext(context, std::move(readView), colorType, |
| alphaType, std::move(colorSpace))); |
| } |
| SkDEBUGCODE(surfaceContext->validate();) |
| return surfaceContext; |
| } |
| |
| std::unique_ptr<GrSurfaceContext> GrSurfaceContext::Make(GrRecordingContext* context, |
| SkISize dimensions, |
| const GrBackendFormat& format, |
| GrRenderable renderable, |
| int renderTargetSampleCnt, |
| GrMipMapped mipMapped, |
| GrProtected isProtected, |
| GrSurfaceOrigin origin, |
| GrColorType colorType, |
| SkAlphaType alphaType, |
| sk_sp<SkColorSpace> colorSpace, |
| SkBackingFit fit, |
| SkBudgeted budgeted) { |
| GrSwizzle swizzle = context->priv().caps()->getReadSwizzle(format, colorType); |
| |
| sk_sp<GrTextureProxy> proxy = context->priv().proxyProvider()->createProxy( |
| format, dimensions, swizzle, renderable, renderTargetSampleCnt, origin, mipMapped, fit, |
| budgeted, isProtected); |
| if (!proxy) { |
| return nullptr; |
| } |
| |
| GrSurfaceProxyView view(std::move(proxy), origin, swizzle); |
| return GrSurfaceContext::Make(context, std::move(view), colorType, alphaType, |
| std::move(colorSpace)); |
| } |
| |
| // In MDB mode the reffing of the 'getLastOpsTask' call's result allows in-progress |
| // GrOpsTasks to be picked up and added to by renderTargetContexts lower in the call |
| // stack. When this occurs with a closed GrOpsTask, a new one will be allocated |
| // when the renderTargetContext attempts to use it (via getOpsTask). |
| GrSurfaceContext::GrSurfaceContext(GrRecordingContext* context, |
| GrSurfaceProxyView readView, |
| GrColorType colorType, |
| SkAlphaType alphaType, |
| sk_sp<SkColorSpace> colorSpace) |
| : fContext(context) |
| , fReadView(std::move(readView)) |
| , fColorInfo(colorType, alphaType, std::move(colorSpace)) { |
| SkASSERT(!context->priv().abandoned()); |
| } |
| |
| const GrCaps* GrSurfaceContext::caps() const { return fContext->priv().caps(); } |
| |
| GrAuditTrail* GrSurfaceContext::auditTrail() { |
| return fContext->priv().auditTrail(); |
| } |
| |
| GrDrawingManager* GrSurfaceContext::drawingManager() { |
| return fContext->priv().drawingManager(); |
| } |
| |
| const GrDrawingManager* GrSurfaceContext::drawingManager() const { |
| return fContext->priv().drawingManager(); |
| } |
| |
| #ifdef SK_DEBUG |
| GrSingleOwner* GrSurfaceContext::singleOwner() { |
| return fContext->priv().singleOwner(); |
| } |
| #endif |
| |
| bool GrSurfaceContext::readPixels(const GrImageInfo& origDstInfo, void* dst, size_t rowBytes, |
| SkIPoint pt, GrContext* direct) { |
| ASSERT_SINGLE_OWNER |
| RETURN_FALSE_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| GR_AUDIT_TRAIL_AUTO_FRAME(this->auditTrail(), "GrSurfaceContext::readPixels"); |
| |
| if (!direct && !(direct = fContext->priv().asDirectContext())) { |
| return false; |
| } |
| |
| if (!dst) { |
| return false; |
| } |
| |
| size_t tightRowBytes = origDstInfo.minRowBytes(); |
| if (!rowBytes) { |
| rowBytes = tightRowBytes; |
| } else if (rowBytes < tightRowBytes) { |
| return false; |
| } |
| |
| if (!origDstInfo.isValid()) { |
| return false; |
| } |
| |
| GrSurfaceProxy* srcProxy = this->asSurfaceProxy(); |
| |
| if (srcProxy->framebufferOnly()) { |
| return false; |
| } |
| |
| // MDB TODO: delay this instantiation until later in the method |
| if (!srcProxy->instantiate(direct->priv().resourceProvider())) { |
| return false; |
| } |
| |
| GrSurface* srcSurface = srcProxy->peekSurface(); |
| |
| auto dstInfo = origDstInfo; |
| if (!dstInfo.clip(this->width(), this->height(), &pt, &dst, rowBytes)) { |
| return false; |
| } |
| // Our tight row bytes may have been changed by clipping. |
| tightRowBytes = dstInfo.minRowBytes(); |
| |
| SkColorSpaceXformSteps::Flags flags = SkColorSpaceXformSteps{this->colorInfo(), dstInfo}.flags; |
| bool unpremul = flags.unpremul, |
| needColorConversion = flags.linearize || flags.gamut_transform || flags.encode, |
| premul = flags.premul; |
| |
| const GrCaps* caps = direct->priv().caps(); |
| bool srcIsCompressed = caps->isFormatCompressed(srcSurface->backendFormat()); |
| // This is the getImageData equivalent to the canvas2D putImageData fast path. We probably don't |
| // care so much about getImageData performance. However, in order to ensure putImageData/ |
| // getImageData in "legacy" mode are round-trippable we use the GPU to do the complementary |
| // unpremul step to writeSurfacePixels's premul step (which is determined empirically in |
| // fContext->vaildaPMUPMConversionExists()). |
| GrBackendFormat defaultRGBAFormat = caps->getDefaultBackendFormat(GrColorType::kRGBA_8888, |
| GrRenderable::kYes); |
| GrColorType srcColorType = this->colorInfo().colorType(); |
| bool canvas2DFastPath = unpremul && !needColorConversion && |
| (GrColorType::kRGBA_8888 == dstInfo.colorType() || |
| GrColorType::kBGRA_8888 == dstInfo.colorType()) && |
| SkToBool(srcProxy->asTextureProxy()) && |
| (srcColorType == GrColorType::kRGBA_8888 || |
| srcColorType == GrColorType::kBGRA_8888) && |
| defaultRGBAFormat.isValid() && |
| direct->priv().validPMUPMConversionExists(); |
| |
| auto readFlag = caps->surfaceSupportsReadPixels(srcSurface); |
| if (readFlag == GrCaps::SurfaceReadPixelsSupport::kUnsupported) { |
| return false; |
| } |
| |
| if (readFlag == GrCaps::SurfaceReadPixelsSupport::kCopyToTexture2D || canvas2DFastPath) { |
| GrColorType colorType = (canvas2DFastPath || srcIsCompressed) |
| ? GrColorType::kRGBA_8888 : this->colorInfo().colorType(); |
| sk_sp<SkColorSpace> cs = canvas2DFastPath ? nullptr : this->colorInfo().refColorSpace(); |
| |
| auto tempCtx = GrRenderTargetContext::Make( |
| direct, colorType, std::move(cs), SkBackingFit::kApprox, dstInfo.dimensions(), |
| 1, GrMipMapped::kNo, GrProtected::kNo, kTopLeft_GrSurfaceOrigin); |
| if (!tempCtx) { |
| return false; |
| } |
| |
| std::unique_ptr<GrFragmentProcessor> fp; |
| if (canvas2DFastPath) { |
| fp = direct->priv().createPMToUPMEffect( |
| GrTextureEffect::Make(this->readSurfaceView(), this->colorInfo().alphaType())); |
| if (dstInfo.colorType() == GrColorType::kBGRA_8888) { |
| fp = GrFragmentProcessor::SwizzleOutput(std::move(fp), GrSwizzle::BGRA()); |
| dstInfo = dstInfo.makeColorType(GrColorType::kRGBA_8888); |
| } |
| // The render target context is incorrectly tagged as kPremul even though we're writing |
| // unpremul data thanks to the PMToUPM effect. Fake out the dst alpha type so we don't |
| // double unpremul. |
| dstInfo = dstInfo.makeAlphaType(kPremul_SkAlphaType); |
| } else { |
| fp = GrTextureEffect::Make(this->readSurfaceView(), this->colorInfo().alphaType()); |
| } |
| if (!fp) { |
| return false; |
| } |
| GrPaint paint; |
| paint.setPorterDuffXPFactory(SkBlendMode::kSrc); |
| paint.addColorFragmentProcessor(std::move(fp)); |
| |
| tempCtx->asRenderTargetContext()->fillRectToRect( |
| GrNoClip(), std::move(paint), GrAA::kNo, SkMatrix::I(), |
| SkRect::MakeWH(dstInfo.width(), dstInfo.height()), |
| SkRect::MakeXYWH(pt.fX, pt.fY, dstInfo.width(), dstInfo.height())); |
| |
| return tempCtx->readPixels(dstInfo, dst, rowBytes, {0, 0}, direct); |
| } |
| |
| bool flip = this->origin() == kBottomLeft_GrSurfaceOrigin; |
| |
| auto supportedRead = caps->supportedReadPixelsColorType( |
| this->colorInfo().colorType(), srcProxy->backendFormat(), dstInfo.colorType()); |
| |
| bool makeTight = !caps->readPixelsRowBytesSupport() && tightRowBytes != rowBytes; |
| |
| bool convert = unpremul || premul || needColorConversion || flip || makeTight || |
| (dstInfo.colorType() != supportedRead.fColorType); |
| |
| std::unique_ptr<char[]> tmpPixels; |
| GrImageInfo tmpInfo; |
| void* readDst = dst; |
| size_t readRB = rowBytes; |
| if (convert) { |
| tmpInfo = {supportedRead.fColorType, this->colorInfo().alphaType(), |
| this->colorInfo().refColorSpace(), dstInfo.width(), dstInfo.height()}; |
| size_t tmpRB = tmpInfo.minRowBytes(); |
| size_t size = tmpRB * tmpInfo.height(); |
| // Chrome MSAN bots require the data to be initialized (hence the ()). |
| tmpPixels.reset(new char[size]()); |
| |
| readDst = tmpPixels.get(); |
| readRB = tmpRB; |
| pt.fY = flip ? srcSurface->height() - pt.fY - dstInfo.height() : pt.fY; |
| } |
| |
| direct->priv().flushSurface(srcProxy); |
| |
| if (!direct->priv().getGpu()->readPixels(srcSurface, pt.fX, pt.fY, dstInfo.width(), |
| dstInfo.height(), this->colorInfo().colorType(), |
| supportedRead.fColorType, readDst, readRB)) { |
| return false; |
| } |
| |
| if (convert) { |
| return GrConvertPixels(dstInfo, dst, rowBytes, tmpInfo, readDst, readRB, flip); |
| } |
| return true; |
| } |
| |
| bool GrSurfaceContext::writePixels(const GrImageInfo& origSrcInfo, const void* src, size_t rowBytes, |
| SkIPoint pt, GrContext* direct) { |
| ASSERT_SINGLE_OWNER |
| RETURN_FALSE_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| GR_AUDIT_TRAIL_AUTO_FRAME(this->auditTrail(), "GrSurfaceContext::writePixels"); |
| |
| if (!direct && !(direct = fContext->priv().asDirectContext())) { |
| return false; |
| } |
| |
| if (this->asSurfaceProxy()->readOnly()) { |
| return false; |
| } |
| |
| if (!src) { |
| return false; |
| } |
| |
| size_t tightRowBytes = origSrcInfo.minRowBytes(); |
| if (!rowBytes) { |
| rowBytes = tightRowBytes; |
| } else if (rowBytes < tightRowBytes) { |
| return false; |
| } |
| |
| if (!origSrcInfo.isValid()) { |
| return false; |
| } |
| |
| GrSurfaceProxy* dstProxy = this->asSurfaceProxy(); |
| |
| if (dstProxy->framebufferOnly()) { |
| return false; |
| } |
| |
| if (!dstProxy->instantiate(direct->priv().resourceProvider())) { |
| return false; |
| } |
| |
| GrSurface* dstSurface = dstProxy->peekSurface(); |
| |
| auto srcInfo = origSrcInfo; |
| if (!srcInfo.clip(this->width(), this->height(), &pt, &src, rowBytes)) { |
| return false; |
| } |
| // Our tight row bytes may have been changed by clipping. |
| tightRowBytes = srcInfo.minRowBytes(); |
| |
| SkColorSpaceXformSteps::Flags flags = SkColorSpaceXformSteps{srcInfo, this->colorInfo()}.flags; |
| bool unpremul = flags.unpremul, |
| needColorConversion = flags.linearize || flags.gamut_transform || flags.encode, |
| premul = flags.premul; |
| |
| const GrCaps* caps = direct->priv().caps(); |
| |
| auto rgbaDefaultFormat = caps->getDefaultBackendFormat(GrColorType::kRGBA_8888, |
| GrRenderable::kNo); |
| |
| GrColorType dstColorType = this->colorInfo().colorType(); |
| // For canvas2D putImageData performance we have a special code path for unpremul RGBA_8888 srcs |
| // that are premultiplied on the GPU. This is kept as narrow as possible for now. |
| bool canvas2DFastPath = !caps->avoidWritePixelsFastPath() && premul && !needColorConversion && |
| (srcInfo.colorType() == GrColorType::kRGBA_8888 || |
| srcInfo.colorType() == GrColorType::kBGRA_8888) && |
| SkToBool(this->asRenderTargetContext()) && |
| (dstColorType == GrColorType::kRGBA_8888 || |
| dstColorType == GrColorType::kBGRA_8888) && |
| rgbaDefaultFormat.isValid() && |
| direct->priv().validPMUPMConversionExists(); |
| |
| if (!caps->surfaceSupportsWritePixels(dstSurface) || canvas2DFastPath) { |
| GrColorType colorType; |
| |
| GrBackendFormat format; |
| SkAlphaType alphaType; |
| GrSwizzle tempReadSwizzle; |
| if (canvas2DFastPath) { |
| colorType = GrColorType::kRGBA_8888; |
| format = rgbaDefaultFormat; |
| alphaType = kUnpremul_SkAlphaType; |
| } else { |
| colorType = this->colorInfo().colorType(); |
| format = dstProxy->backendFormat().makeTexture2D(); |
| if (!format.isValid()) { |
| return false; |
| } |
| alphaType = this->colorInfo().alphaType(); |
| tempReadSwizzle = this->readSwizzle(); |
| } |
| |
| // It is more efficient for us to write pixels into a top left origin so we prefer that. |
| // However, if the final proxy isn't a render target then we must use a copy to move the |
| // data into it which requires the origins to match. If the final proxy is a render target |
| // we can use a draw instead which doesn't have this origin restriction. Thus for render |
| // targets we will use top left and otherwise we will make the origins match. |
| GrSurfaceOrigin tempOrigin = |
| this->asRenderTargetContext() ? kTopLeft_GrSurfaceOrigin : this->origin(); |
| auto tempProxy = direct->priv().proxyProvider()->createProxy( |
| format, srcInfo.dimensions(), tempReadSwizzle, GrRenderable::kNo, 1, tempOrigin, |
| GrMipMapped::kNo, SkBackingFit::kApprox, SkBudgeted::kYes, GrProtected::kNo); |
| if (!tempProxy) { |
| return false; |
| } |
| GrSurfaceProxyView tempView(tempProxy, tempOrigin, tempReadSwizzle); |
| GrSurfaceContext tempCtx(direct, tempView, colorType, alphaType, |
| this->colorInfo().refColorSpace()); |
| |
| // In the fast path we always write the srcData to the temp context as though it were RGBA. |
| // When the data is really BGRA the write will cause the R and B channels to be swapped in |
| // the intermediate surface which gets corrected by a swizzle effect when drawing to the |
| // dst. |
| if (canvas2DFastPath) { |
| srcInfo = srcInfo.makeColorType(GrColorType::kRGBA_8888); |
| } |
| if (!tempCtx.writePixels(srcInfo, src, rowBytes, {0, 0}, direct)) { |
| return false; |
| } |
| |
| if (this->asRenderTargetContext()) { |
| std::unique_ptr<GrFragmentProcessor> fp; |
| if (canvas2DFastPath) { |
| fp = direct->priv().createUPMToPMEffect( |
| GrTextureEffect::Make(std::move(tempView), alphaType)); |
| // Important: check the original src color type here! |
| if (origSrcInfo.colorType() == GrColorType::kBGRA_8888) { |
| fp = GrFragmentProcessor::SwizzleOutput(std::move(fp), GrSwizzle::BGRA()); |
| } |
| } else { |
| fp = GrTextureEffect::Make(std::move(tempView), alphaType); |
| } |
| if (!fp) { |
| return false; |
| } |
| GrPaint paint; |
| paint.setPorterDuffXPFactory(SkBlendMode::kSrc); |
| paint.addColorFragmentProcessor(std::move(fp)); |
| this->asRenderTargetContext()->fillRectToRect( |
| GrNoClip(), std::move(paint), GrAA::kNo, SkMatrix::I(), |
| SkRect::MakeXYWH(pt.fX, pt.fY, srcInfo.width(), srcInfo.height()), |
| SkRect::MakeWH(srcInfo.width(), srcInfo.height())); |
| } else { |
| SkIRect srcRect = SkIRect::MakeWH(srcInfo.width(), srcInfo.height()); |
| SkIPoint dstPoint = SkIPoint::Make(pt.fX, pt.fY); |
| if (!this->copy(tempProxy.get(), tempOrigin, srcRect, dstPoint)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| GrColorType allowedColorType = |
| caps->supportedWritePixelsColorType(this->colorInfo().colorType(), |
| dstProxy->backendFormat(), |
| srcInfo.colorType()).fColorType; |
| bool flip = this->origin() == kBottomLeft_GrSurfaceOrigin; |
| bool makeTight = !caps->writePixelsRowBytesSupport() && rowBytes != tightRowBytes; |
| bool convert = premul || unpremul || needColorConversion || makeTight || |
| (srcInfo.colorType() != allowedColorType) || flip; |
| |
| std::unique_ptr<char[]> tmpPixels; |
| GrColorType srcColorType = srcInfo.colorType(); |
| if (convert) { |
| GrImageInfo tmpInfo(allowedColorType, this->colorInfo().alphaType(), |
| this->colorInfo().refColorSpace(), srcInfo.width(), srcInfo.height()); |
| auto tmpRB = tmpInfo.minRowBytes(); |
| tmpPixels.reset(new char[tmpRB * tmpInfo.height()]); |
| |
| GrConvertPixels(tmpInfo, tmpPixels.get(), tmpRB, srcInfo, src, rowBytes, flip); |
| |
| srcColorType = tmpInfo.colorType(); |
| rowBytes = tmpRB; |
| src = tmpPixels.get(); |
| pt.fY = flip ? dstSurface->height() - pt.fY - tmpInfo.height() : pt.fY; |
| } |
| |
| // On platforms that prefer flushes over VRAM use (i.e., ANGLE) we're better off forcing a |
| // complete flush here. On platforms that prefer VRAM use over flushes we're better off |
| // giving the drawing manager the chance of skipping the flush (i.e., by passing in the |
| // destination proxy) |
| // TODO: should this policy decision just be moved into the drawing manager? |
| direct->priv().flushSurface(caps->preferVRAMUseOverFlushes() ? dstProxy : nullptr); |
| |
| return direct->priv().getGpu()->writePixels(dstSurface, pt.fX, pt.fY, srcInfo.width(), |
| srcInfo.height(), this->colorInfo().colorType(), |
| srcColorType, src, rowBytes); |
| } |
| |
| bool GrSurfaceContext::copy(GrSurfaceProxy* src, GrSurfaceOrigin origin, const SkIRect& srcRect, |
| const SkIPoint& dstPoint) { |
| ASSERT_SINGLE_OWNER |
| RETURN_FALSE_IF_ABANDONED |
| SkDEBUGCODE(this->validate();) |
| GR_AUDIT_TRAIL_AUTO_FRAME(this->auditTrail(), "GrSurfaceContextPriv::copy"); |
| |
| const GrCaps* caps = fContext->priv().caps(); |
| |
| SkASSERT(src->backendFormat().textureType() != GrTextureType::kExternal); |
| SkASSERT(src->backendFormat() == this->asSurfaceProxy()->backendFormat()); |
| SkASSERT(origin == this->origin()); |
| |
| if (this->asSurfaceProxy()->framebufferOnly()) { |
| return false; |
| } |
| |
| if (!caps->canCopySurface(this->asSurfaceProxy(), src, srcRect, dstPoint)) { |
| return false; |
| } |
| |
| // The swizzle doesn't matter for copies and it is not used. |
| return this->drawingManager()->newCopyRenderTask( |
| GrSurfaceProxyView(sk_ref_sp(src), origin, GrSwizzle()), srcRect, |
| this->readSurfaceView(), dstPoint); |
| } |
| |
| std::unique_ptr<GrRenderTargetContext> GrSurfaceContext::rescale( |
| const SkImageInfo& info, |
| const SkIRect& srcRect, |
| SkSurface::RescaleGamma rescaleGamma, |
| SkFilterQuality rescaleQuality) { |
| auto direct = fContext->priv().asDirectContext(); |
| if (!direct) { |
| return nullptr; |
| } |
| auto rtProxy = this->asRenderTargetProxy(); |
| if (rtProxy && rtProxy->wrapsVkSecondaryCB()) { |
| return nullptr; |
| } |
| |
| if (this->asSurfaceProxy()->framebufferOnly()) { |
| return nullptr; |
| } |
| |
| // We rescale by drawing and don't currently support drawing to a kUnpremul destination. |
| if (info.alphaType() == kUnpremul_SkAlphaType) { |
| return nullptr; |
| } |
| |
| int srcW = srcRect.width(); |
| int srcH = srcRect.height(); |
| int srcX = srcRect.fLeft; |
| int srcY = srcRect.fTop; |
| GrSurfaceProxyView texView = this->readSurfaceView(); |
| SkCanvas::SrcRectConstraint constraint = SkCanvas::kStrict_SrcRectConstraint; |
| GrColorType srcColorType = this->colorInfo().colorType(); |
| SkAlphaType srcAlphaType = this->colorInfo().alphaType(); |
| if (!texView.asTextureProxy()) { |
| texView = GrSurfaceProxy::Copy(fContext, this->asSurfaceProxy(), this->origin(), |
| srcColorType, GrMipMapped::kNo, srcRect, |
| SkBackingFit::kApprox, SkBudgeted::kNo); |
| if (!texView.proxy()) { |
| return nullptr; |
| } |
| SkASSERT(texView.asTextureProxy()); |
| srcX = 0; |
| srcY = 0; |
| constraint = SkCanvas::kFast_SrcRectConstraint; |
| } |
| |
| float sx = (float)info.width() / srcW; |
| float sy = (float)info.height() / srcH; |
| |
| // How many bilerp/bicubic steps to do in X and Y. + means upscaling, - means downscaling. |
| int stepsX; |
| int stepsY; |
| if (rescaleQuality > kNone_SkFilterQuality) { |
| stepsX = static_cast<int>((sx > 1.f) ? ceil(log2f(sx)) : floor(log2f(sx))); |
| stepsY = static_cast<int>((sy > 1.f) ? ceil(log2f(sy)) : floor(log2f(sy))); |
| } else { |
| stepsX = sx != 1.f; |
| stepsY = sy != 1.f; |
| } |
| SkASSERT(stepsX || stepsY); |
| |
| // Within a rescaling pass A is the input (if not null) and B is the output. At the end of the |
| // pass B is moved to A. If 'this' is the input on the first pass then tempA is null. |
| std::unique_ptr<GrRenderTargetContext> tempA; |
| std::unique_ptr<GrRenderTargetContext> tempB; |
| |
| // Assume we should ignore the rescale linear request if the surface has no color space since |
| // it's unclear how we'd linearize from an unknown color space. |
| if (rescaleGamma == SkSurface::kLinear && this->colorInfo().colorSpace() && |
| !this->colorInfo().colorSpace()->gammaIsLinear()) { |
| auto cs = this->colorInfo().colorSpace()->makeLinearGamma(); |
| auto xform = GrColorSpaceXform::Make(this->colorInfo().colorSpace(), srcAlphaType, cs.get(), |
| kPremul_SkAlphaType); |
| // We'll fall back to kRGBA_8888 if half float not supported. |
| auto linearRTC = GrRenderTargetContext::MakeWithFallback( |
| fContext, GrColorType::kRGBA_F16, cs, SkBackingFit::kExact, {srcW, srcH}, 1, |
| GrMipMapped::kNo, GrProtected::kNo, kTopLeft_GrSurfaceOrigin); |
| if (!linearRTC) { |
| return nullptr; |
| } |
| linearRTC->drawTexture(GrNoClip(), std::move(texView), srcAlphaType, |
| GrSamplerState::Filter::kNearest, SkBlendMode::kSrc, |
| SK_PMColor4fWHITE, SkRect::Make(srcRect), SkRect::MakeWH(srcW, srcH), |
| GrAA::kNo, GrQuadAAFlags::kNone, constraint, SkMatrix::I(), |
| std::move(xform)); |
| texView = linearRTC->readSurfaceView(); |
| SkASSERT(texView.asTextureProxy()); |
| tempA = std::move(linearRTC); |
| srcX = 0; |
| srcY = 0; |
| constraint = SkCanvas::kFast_SrcRectConstraint; |
| } |
| while (stepsX || stepsY) { |
| int nextW = info.width(); |
| int nextH = info.height(); |
| if (stepsX < 0) { |
| nextW = info.width() << (-stepsX - 1); |
| stepsX++; |
| } else if (stepsX != 0) { |
| if (stepsX > 1) { |
| nextW = srcW * 2; |
| } |
| --stepsX; |
| } |
| if (stepsY < 0) { |
| nextH = info.height() << (-stepsY - 1); |
| stepsY++; |
| } else if (stepsY != 0) { |
| if (stepsY > 1) { |
| nextH = srcH * 2; |
| } |
| --stepsY; |
| } |
| auto input = tempA ? tempA.get() : this; |
| GrColorType colorType = input->colorInfo().colorType(); |
| auto cs = input->colorInfo().refColorSpace(); |
| sk_sp<GrColorSpaceXform> xform; |
| auto prevAlphaType = input->colorInfo().alphaType(); |
| if (!stepsX && !stepsY) { |
| // Might as well fold conversion to final info in the last step. |
| cs = info.refColorSpace(); |
| colorType = SkColorTypeToGrColorType(info.colorType()); |
| xform = GrColorSpaceXform::Make(input->colorInfo().colorSpace(), |
| input->colorInfo().alphaType(), cs.get(), |
| info.alphaType()); |
| } |
| tempB = GrRenderTargetContext::MakeWithFallback( |
| fContext, colorType, std::move(cs), SkBackingFit::kExact, {nextW, nextH}, 1, |
| GrMipMapped::kNo, GrProtected::kNo, kTopLeft_GrSurfaceOrigin); |
| if (!tempB) { |
| return nullptr; |
| } |
| auto dstRect = SkRect::MakeWH(nextW, nextH); |
| if (rescaleQuality == kHigh_SkFilterQuality) { |
| SkMatrix matrix; |
| matrix.setScaleTranslate((float)srcW / nextW, (float)srcH / nextH, srcX, srcY); |
| std::unique_ptr<GrFragmentProcessor> fp; |
| auto dir = GrBicubicEffect::Direction::kXY; |
| if (nextW == srcW) { |
| dir = GrBicubicEffect::Direction::kY; |
| } else if (nextH == srcH) { |
| dir = GrBicubicEffect::Direction::kX; |
| } |
| if (srcW != texView.proxy()->width() || srcH != texView.proxy()->height()) { |
| auto domain = GrTextureDomain::MakeTexelDomain( |
| SkIRect::MakeXYWH(srcX, srcY, srcW, srcH), GrTextureDomain::kClamp_Mode); |
| fp = GrBicubicEffect::Make(std::move(texView), matrix, domain, dir, prevAlphaType); |
| } else { |
| fp = GrBicubicEffect::Make(std::move(texView), matrix, dir, prevAlphaType); |
| } |
| if (xform) { |
| fp = GrColorSpaceXformEffect::Make(std::move(fp), std::move(xform)); |
| } |
| GrPaint paint; |
| paint.addColorFragmentProcessor(std::move(fp)); |
| paint.setPorterDuffXPFactory(SkBlendMode::kSrc); |
| tempB->fillRectToRect(GrNoClip(), std::move(paint), GrAA::kNo, SkMatrix::I(), dstRect, |
| dstRect); |
| } else { |
| auto filter = rescaleQuality == kNone_SkFilterQuality ? GrSamplerState::Filter::kNearest |
| : GrSamplerState::Filter::kBilerp; |
| auto srcSubset = SkRect::MakeXYWH(srcX, srcY, srcW, srcH); |
| tempB->drawTexture(GrNoClip(), std::move(texView), srcAlphaType, filter, |
| SkBlendMode::kSrc, SK_PMColor4fWHITE, srcSubset, dstRect, GrAA::kNo, |
| GrQuadAAFlags::kNone, constraint, SkMatrix::I(), std::move(xform)); |
| } |
| texView = tempB->readSurfaceView(); |
| tempA = std::move(tempB); |
| srcX = srcY = 0; |
| srcW = nextW; |
| srcH = nextH; |
| constraint = SkCanvas::kFast_SrcRectConstraint; |
| } |
| SkASSERT(tempA); |
| return tempA; |
| } |
| |
| GrSurfaceContext::PixelTransferResult GrSurfaceContext::transferPixels(GrColorType dstCT, |
| const SkIRect& rect) { |
| SkASSERT(rect.fLeft >= 0 && rect.fRight <= this->width()); |
| SkASSERT(rect.fTop >= 0 && rect.fBottom <= this->height()); |
| auto direct = fContext->priv().asDirectContext(); |
| if (!direct) { |
| return {}; |
| } |
| auto rtProxy = this->asRenderTargetProxy(); |
| if (rtProxy && rtProxy->wrapsVkSecondaryCB()) { |
| return {}; |
| } |
| |
| auto proxy = this->asSurfaceProxy(); |
| auto supportedRead = this->caps()->supportedReadPixelsColorType(this->colorInfo().colorType(), |
| proxy->backendFormat(), dstCT); |
| // Fail if read color type does not have all of dstCT's color channels and those missing color |
| // channels are in the src. |
| uint32_t dstComponents = GrColorTypeComponentFlags(dstCT); |
| uint32_t legalReadComponents = GrColorTypeComponentFlags(supportedRead.fColorType); |
| uint32_t srcComponents = GrColorTypeComponentFlags(this->colorInfo().colorType()); |
| if ((~legalReadComponents & dstComponents) & srcComponents) { |
| return {}; |
| } |
| |
| if (!this->caps()->transferFromSurfaceToBufferSupport() || |
| !supportedRead.fOffsetAlignmentForTransferBuffer) { |
| return {}; |
| } |
| |
| size_t rowBytes = GrColorTypeBytesPerPixel(supportedRead.fColorType) * rect.width(); |
| size_t size = rowBytes * rect.height(); |
| auto buffer = direct->priv().resourceProvider()->createBuffer( |
| size, GrGpuBufferType::kXferGpuToCpu, GrAccessPattern::kStream_GrAccessPattern); |
| if (!buffer) { |
| return {}; |
| } |
| auto srcRect = rect; |
| bool flip = this->origin() == kBottomLeft_GrSurfaceOrigin; |
| if (flip) { |
| srcRect = SkIRect::MakeLTRB(rect.fLeft, this->height() - rect.fBottom, rect.fRight, |
| this->height() - rect.fTop); |
| } |
| this->drawingManager()->newTransferFromRenderTask(this->asSurfaceProxyRef(), srcRect, |
| this->colorInfo().colorType(), |
| supportedRead.fColorType, buffer, 0); |
| PixelTransferResult result; |
| result.fTransferBuffer = std::move(buffer); |
| auto at = this->colorInfo().alphaType(); |
| if (supportedRead.fColorType != dstCT || flip) { |
| result.fPixelConverter = [w = rect.width(), h = rect.height(), dstCT, supportedRead, at]( |
| void* dst, const void* src) { |
| GrImageInfo srcInfo(supportedRead.fColorType, at, nullptr, w, h); |
| GrImageInfo dstInfo(dstCT, at, nullptr, w, h); |
| GrConvertPixels(dstInfo, dst, dstInfo.minRowBytes(), |
| srcInfo, src, srcInfo.minRowBytes(), |
| /* flipY = */ false); |
| }; |
| } |
| return result; |
| } |
| |
| #ifdef SK_DEBUG |
| void GrSurfaceContext::validate() const { |
| SkASSERT(fReadView.proxy()); |
| fReadView.proxy()->validate(fContext); |
| SkASSERT(fContext->priv().caps()->areColorTypeAndFormatCompatible( |
| this->colorInfo().colorType(), fReadView.proxy()->backendFormat())); |
| |
| this->onValidate(); |
| } |
| #endif |
| |
