| /* |
| * 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/GrRenderTargetProxy.h" |
| |
| #include "src/core/SkMathPriv.h" |
| #include "src/gpu/GrCaps.h" |
| #include "src/gpu/GrGpuResourcePriv.h" |
| #include "src/gpu/GrOpsTask.h" |
| #include "src/gpu/GrRenderTarget.h" |
| #include "src/gpu/GrResourceProvider.h" |
| #include "src/gpu/GrSurface.h" |
| #include "src/gpu/GrTextureRenderTargetProxy.h" |
| |
| #ifdef SK_DEBUG |
| #include "include/gpu/GrDirectContext.h" |
| #include "src/gpu/GrDirectContextPriv.h" |
| #endif |
| |
| // Deferred version |
| // TODO: we can probably munge the 'desc' in both the wrapped and deferred |
| // cases to make the sampleConfig/numSamples stuff more rational. |
| GrRenderTargetProxy::GrRenderTargetProxy(const GrCaps& caps, |
| const GrBackendFormat& format, |
| SkISize dimensions, |
| int sampleCount, |
| SkBackingFit fit, |
| SkBudgeted budgeted, |
| GrProtected isProtected, |
| GrInternalSurfaceFlags surfaceFlags, |
| UseAllocator useAllocator) |
| : INHERITED(format, dimensions, fit, budgeted, isProtected, surfaceFlags, useAllocator) |
| , fSampleCnt(sampleCount) |
| , fWrapsVkSecondaryCB(WrapsVkSecondaryCB::kNo) {} |
| |
| // Lazy-callback version |
| GrRenderTargetProxy::GrRenderTargetProxy(LazyInstantiateCallback&& callback, |
| const GrBackendFormat& format, |
| SkISize dimensions, |
| int sampleCount, |
| SkBackingFit fit, |
| SkBudgeted budgeted, |
| GrProtected isProtected, |
| GrInternalSurfaceFlags surfaceFlags, |
| UseAllocator useAllocator, |
| WrapsVkSecondaryCB wrapsVkSecondaryCB) |
| : INHERITED(std::move(callback), format, dimensions, fit, budgeted, isProtected, |
| surfaceFlags, useAllocator) |
| , fSampleCnt(sampleCount) |
| , fWrapsVkSecondaryCB(wrapsVkSecondaryCB) {} |
| |
| // Wrapped version |
| GrRenderTargetProxy::GrRenderTargetProxy(sk_sp<GrSurface> surf, |
| UseAllocator useAllocator, |
| WrapsVkSecondaryCB wrapsVkSecondaryCB) |
| : INHERITED(std::move(surf), SkBackingFit::kExact, useAllocator) |
| , fSampleCnt(fTarget->asRenderTarget()->numSamples()) |
| , fWrapsVkSecondaryCB(wrapsVkSecondaryCB) { |
| // The kRequiresManualMSAAResolve flag better not be set if we are not multisampled or if |
| // MSAA resolve should happen automatically. |
| // |
| // From the other side, we don't know enough about the wrapped surface to assert when |
| // kRequiresManualMSAAResolve *should* be set. e.g., The caller might be wrapping a backend |
| // texture as a render target at this point but we wouldn't know it. |
| SkASSERT(!(this->numSamples() <= 1 || |
| fTarget->getContext()->priv().caps()->msaaResolvesAutomatically()) || |
| !this->requiresManualMSAAResolve()); |
| } |
| |
| int GrRenderTargetProxy::maxWindowRectangles(const GrCaps& caps) const { |
| return this->glRTFBOIDIs0() ? 0 : caps.maxWindowRectangles(); |
| } |
| |
| bool GrRenderTargetProxy::instantiate(GrResourceProvider* resourceProvider) { |
| if (this->isLazy()) { |
| return false; |
| } |
| if (!this->instantiateImpl(resourceProvider, fSampleCnt, GrRenderable::kYes, GrMipmapped::kNo, |
| nullptr)) { |
| return false; |
| } |
| |
| SkASSERT(this->peekRenderTarget()); |
| SkASSERT(!this->peekTexture()); |
| return true; |
| } |
| |
| bool GrRenderTargetProxy::canUseStencil(const GrCaps& caps) const { |
| if (caps.avoidStencilBuffers() || this->wrapsVkSecondaryCB()) { |
| return false; |
| } |
| if (!this->isInstantiated()) { |
| if (this->isLazy() && this->backendFormat().backend() == GrBackendApi::kOpenGL) { |
| // It's possible for wrapped GL render targets to not have stencil. We don't currently |
| // have an exact way of knowing whether the target will be able to use stencil, so we do |
| // the best we can: if a lazy GL proxy doesn't have a texture, then it might be a |
| // wrapped target without stencil, so we conservatively block stencil. |
| // FIXME: skbug.com/11943: SkSurfaceCharacterization needs a "canUseStencil" flag. |
| return SkToBool(this->asTextureProxy()); |
| } else { |
| // Otherwise the target will definitely not be wrapped. Ganesh is free to attach |
| // stencils on internal render targets. |
| return true; |
| } |
| } |
| // Just ask the actual target if we can use stencil. |
| GrRenderTarget* rt = this->peekRenderTarget(); |
| // The dmsaa attachment (if any) always supports stencil. The real question is whether the |
| // non-dmsaa attachment supports stencil. |
| bool useMSAASurface = rt->numSamples() > 1; |
| return rt->getStencilAttachment(useMSAASurface) || |
| rt->canAttemptStencilAttachment(useMSAASurface); |
| } |
| |
| sk_sp<GrSurface> GrRenderTargetProxy::createSurface(GrResourceProvider* resourceProvider) const { |
| sk_sp<GrSurface> surface = this->createSurfaceImpl(resourceProvider, fSampleCnt, |
| GrRenderable::kYes, GrMipmapped::kNo); |
| if (!surface) { |
| return nullptr; |
| } |
| SkASSERT(surface->asRenderTarget()); |
| SkASSERT(!surface->asTexture()); |
| return surface; |
| } |
| |
| size_t GrRenderTargetProxy::onUninstantiatedGpuMemorySize() const { |
| int colorSamplesPerPixel = this->numSamples(); |
| if (colorSamplesPerPixel > 1) { |
| // Add one for the resolve buffer. |
| ++colorSamplesPerPixel; |
| } |
| |
| // TODO: do we have enough information to improve this worst case estimate? |
| return GrSurface::ComputeSize(this->backendFormat(), this->dimensions(), |
| colorSamplesPerPixel, GrMipmapped::kNo, !this->priv().isExact()); |
| } |
| |
| bool GrRenderTargetProxy::refsWrappedObjects() const { |
| if (!this->isInstantiated()) { |
| return false; |
| } |
| |
| GrSurface* surface = this->peekSurface(); |
| return surface->resourcePriv().refsWrappedObjects(); |
| } |
| |
| GrSurfaceProxy::LazySurfaceDesc GrRenderTargetProxy::callbackDesc() const { |
| // We only expect exactly sized lazy RT proxies. |
| SkASSERT(!this->isFullyLazy()); |
| SkASSERT(this->isFunctionallyExact()); |
| return { |
| this->dimensions(), |
| SkBackingFit::kExact, |
| GrRenderable::kYes, |
| GrMipmapped::kNo, |
| this->numSamples(), |
| this->backendFormat(), |
| this->isProtected(), |
| this->isBudgeted(), |
| }; |
| } |
| |
| #ifdef SK_DEBUG |
| void GrRenderTargetProxy::onValidateSurface(const GrSurface* surface) { |
| // We do not check that surface->asTexture returns null since, when replaying DDLs we |
| // can fulfill a renderTarget-only proxy w/ a textureRenderTarget. |
| |
| // Anything that is checked here should be duplicated in GrTextureRenderTargetProxy's version |
| SkASSERT(surface->asRenderTarget()); |
| SkASSERT(surface->asRenderTarget()->numSamples() == this->numSamples()); |
| |
| GrInternalSurfaceFlags proxyFlags = fSurfaceFlags; |
| GrInternalSurfaceFlags surfaceFlags = surface->flags(); |
| if (proxyFlags & GrInternalSurfaceFlags::kGLRTFBOIDIs0 && this->numSamples() == 1) { |
| // Ganesh never internally creates FBO0 proxies or surfaces so this must be a wrapped |
| // proxy. In this case, with no MSAA, rendering to FBO0 is strictly more limited than |
| // rendering to an arbitrary surface so we allow a non-FBO0 surface to be matched with |
| // the proxy. |
| surfaceFlags |= GrInternalSurfaceFlags::kGLRTFBOIDIs0; |
| } |
| SkASSERT(((int)proxyFlags & kGrInternalRenderTargetFlagsMask) == |
| ((int)surfaceFlags & kGrInternalRenderTargetFlagsMask)); |
| |
| // We manually check the kVkRTSupportsInputAttachment since we only require it on the surface if |
| // the proxy has it set. If the proxy doesn't have the flag it is legal for the surface to |
| // have the flag. |
| if (proxyFlags & GrInternalSurfaceFlags::kVkRTSupportsInputAttachment) { |
| SkASSERT(surfaceFlags & GrInternalSurfaceFlags::kVkRTSupportsInputAttachment); |
| } |
| } |
| #endif |