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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkDeferredDisplayListRecorder.h"
#if SK_SUPPORT_GPU
#include "GrContextPriv.h"
#include "GrProxyProvider.h"
#include "GrTexture.h"
#include "SkGpuDevice.h"
#include "SkGr.h"
#include "SkImage_Gpu.h"
#include "SkSurface_Gpu.h"
#endif
#include "SkCanvas.h" // TODO: remove
#include "SkDeferredDisplayList.h"
#include "SkSurface.h"
#include "SkSurfaceCharacterization.h"
SkDeferredDisplayListRecorder::SkDeferredDisplayListRecorder(
const SkSurfaceCharacterization& characterization)
: fCharacterization(characterization) {
}
SkDeferredDisplayListRecorder::~SkDeferredDisplayListRecorder() {
#if SK_SUPPORT_GPU
auto proxyProvider = fContext->contextPriv().proxyProvider();
// DDL TODO: Remove this. DDL contexts should allow for deletion while still having live
// uniquely keyed proxies.
proxyProvider->removeAllUniqueKeys();
#endif
}
bool SkDeferredDisplayListRecorder::init() {
SkASSERT(!fSurface);
if (!fCharacterization.isValid()) {
return false;
}
SkASSERT(!fLazyProxyData);
#if SK_SUPPORT_GPU
if (!fContext) {
fContext = GrContextPriv::MakeDDL(fCharacterization.refContextInfo());
if (!fContext) {
return false;
}
}
fLazyProxyData = sk_sp<SkDeferredDisplayList::LazyProxyData>(
new SkDeferredDisplayList::LazyProxyData);
auto proxyProvider = fContext->contextPriv().proxyProvider();
GrSurfaceDesc desc;
desc.fFlags = kRenderTarget_GrSurfaceFlag;
desc.fWidth = fCharacterization.width();
desc.fHeight = fCharacterization.height();
desc.fConfig = fCharacterization.config();
desc.fSampleCnt = fCharacterization.stencilCount();
sk_sp<SkDeferredDisplayList::LazyProxyData> lazyProxyData = fLazyProxyData;
// What we're doing here is we're creating a lazy proxy to back the SkSurface. The lazy
// proxy, when instantiated, will use the GrRenderTarget that backs the SkSurface that the
// DDL is being replayed into.
sk_sp<GrRenderTargetProxy> proxy = proxyProvider->createLazyRenderTargetProxy(
[lazyProxyData](GrResourceProvider* resourceProvider) {
if (!resourceProvider) {
return sk_sp<GrSurface>();
}
// The proxy backing the destination surface had better have been instantiated
// prior to the proxy backing the DLL's surface. Steal its GrRenderTarget.
SkASSERT(lazyProxyData->fReplayDest->priv().peekSurface());
return sk_ref_sp<GrSurface>(lazyProxyData->fReplayDest->priv().peekSurface());
},
desc,
fCharacterization.origin(),
GrRenderTargetFlags::kNone,
GrProxyProvider::Textureable(fCharacterization.isTextureable()),
GrMipMapped::kNo,
SkBackingFit::kExact,
SkBudgeted::kYes);
sk_sp<GrSurfaceContext> c = fContext->contextPriv().makeWrappedSurfaceContext(
std::move(proxy),
fCharacterization.refColorSpace(),
&fCharacterization.surfaceProps());
fSurface = SkSurface_Gpu::MakeWrappedRenderTarget(fContext.get(),
sk_ref_sp(c->asRenderTargetContext()));
return SkToBool(fSurface.get());
#else
return false;
#endif
}
SkCanvas* SkDeferredDisplayListRecorder::getCanvas() {
if (!fSurface) {
if (!this->init()) {
return nullptr;
}
}
return fSurface->getCanvas();
}
std::unique_ptr<SkDeferredDisplayList> SkDeferredDisplayListRecorder::detach() {
#if SK_SUPPORT_GPU
auto ddl = std::unique_ptr<SkDeferredDisplayList>(
new SkDeferredDisplayList(fCharacterization, std::move(fLazyProxyData)));
fContext->contextPriv().moveOpListsToDDL(ddl.get());
return ddl;
#else
return nullptr;
#endif
}
sk_sp<SkImage> SkDeferredDisplayListRecorder::makePromiseTexture(
const GrBackendFormat& backendFormat,
int width,
int height,
GrMipMapped mipMapped,
GrSurfaceOrigin origin,
SkColorType colorType,
SkAlphaType alphaType,
sk_sp<SkColorSpace> colorSpace,
TextureFulfillProc textureFulfillProc,
TextureReleaseProc textureReleaseProc,
TextureContext textureContext) {
#if SK_SUPPORT_GPU
return SkImage_Gpu::MakePromiseTexture(fContext.get(),
backendFormat,
width,
height,
mipMapped,
origin,
colorType,
alphaType,
std::move(colorSpace),
textureFulfillProc,
textureReleaseProc,
textureContext);
#else
return nullptr;
#endif
}
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