/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrDrawingManager.h"
#include "GrBackendSemaphore.h"
#include "GrContext.h"
#include "GrContextPriv.h"
#include "GrGpu.h"
#include "GrOnFlushResourceProvider.h"
#include "GrOpList.h"
#include "GrRenderTargetContext.h"
#include "GrPathRenderingRenderTargetContext.h"
#include "GrRenderTargetProxy.h"
#include "GrResourceAllocator.h"
#include "GrResourceProvider.h"
#include "GrSoftwarePathRenderer.h"
#include "GrSurfaceProxyPriv.h"
#include "GrTextureContext.h"
#include "GrTextureOpList.h"
#include "GrTextureProxy.h"
#include "GrTextureProxyPriv.h"
#include "SkDeferredDisplayList.h"
#include "SkSurface_Gpu.h"
#include "SkTTopoSort.h"
#include "GrTracing.h"
#include "text/GrAtlasTextContext.h"
#include "text/GrStencilAndCoverTextContext.h"
void GrDrawingManager::cleanup() {
for (int i = 0; i < fOpLists.count(); ++i) {
// no opList should receive a new command after this
fOpLists[i]->makeClosed(*fContext->caps());
// We shouldn't need to do this, but it turns out some clients still hold onto opLists
// after a cleanup.
// MDB TODO: is this still true?
if (!fOpLists[i]->unique()) {
// TODO: Eventually this should be guaranteed unique.
// https://bugs.chromium.org/p/skia/issues/detail?id=7111
fOpLists[i]->endFlush();
}
}
fOpLists.reset();
delete fPathRendererChain;
fPathRendererChain = nullptr;
SkSafeSetNull(fSoftwarePathRenderer);
fOnFlushCBObjects.reset();
}
GrDrawingManager::~GrDrawingManager() {
this->cleanup();
}
void GrDrawingManager::abandon() {
fAbandoned = true;
this->cleanup();
}
void GrDrawingManager::freeGpuResources() {
for (int i = fOnFlushCBObjects.count() - 1; i >= 0; --i) {
if (!fOnFlushCBObjects[i]->retainOnFreeGpuResources()) {
// it's safe to just do this because we're iterating in reverse
fOnFlushCBObjects.removeShuffle(i);
}
}
// a path renderer may be holding onto resources
delete fPathRendererChain;
fPathRendererChain = nullptr;
SkSafeSetNull(fSoftwarePathRenderer);
}
// MDB TODO: make use of the 'proxy' parameter.
GrSemaphoresSubmitted GrDrawingManager::internalFlush(GrSurfaceProxy*,
GrResourceCache::FlushType type,
int numSemaphores,
GrBackendSemaphore backendSemaphores[]) {
GR_CREATE_TRACE_MARKER_CONTEXT("GrDrawingManager", "internalFlush", fContext);
if (fFlushing || this->wasAbandoned()) {
return GrSemaphoresSubmitted::kNo;
}
fFlushing = true;
for (int i = 0; i < fOpLists.count(); ++i) {
// Semi-usually the GrOpLists are already closed at this point, but sometimes Ganesh
// needs to flush mid-draw. In that case, the SkGpuDevice's GrOpLists won't be closed
// but need to be flushed anyway. Closing such GrOpLists here will mean new
// GrOpLists will be created to replace them if the SkGpuDevice(s) write to them again.
fOpLists[i]->makeClosed(*fContext->caps());
}
#ifdef SK_DEBUG
// This block checks for any unnecessary splits in the opLists. If two sequential opLists
// share the same backing GrSurfaceProxy it means the opList was artificially split.
if (fOpLists.count()) {
GrRenderTargetOpList* prevOpList = fOpLists[0]->asRenderTargetOpList();
for (int i = 1; i < fOpLists.count(); ++i) {
GrRenderTargetOpList* curOpList = fOpLists[i]->asRenderTargetOpList();
if (prevOpList && curOpList) {
SkASSERT(prevOpList->fTarget.get() != curOpList->fTarget.get());
}
prevOpList = curOpList;
}
}
#endif
#ifndef SK_DISABLE_RENDER_TARGET_SORTING
SkDEBUGCODE(bool result =)
SkTTopoSort<GrOpList, GrOpList::TopoSortTraits>(&fOpLists);
SkASSERT(result);
#endif
GrGpu* gpu = fContext->contextPriv().getGpu();
GrOpFlushState flushState(gpu, fContext->contextPriv().resourceProvider(),
&fTokenTracker);
GrOnFlushResourceProvider onFlushProvider(this);
// TODO: AFAICT the only reason fFlushState is on GrDrawingManager rather than on the
// stack here is to preserve the flush tokens.
// Prepare any onFlush op lists (e.g. atlases).
if (!fOnFlushCBObjects.empty()) {
fFlushingOpListIDs.reset(fOpLists.count());
for (int i = 0; i < fOpLists.count(); ++i) {
fFlushingOpListIDs[i] = fOpLists[i]->uniqueID();
}
SkSTArray<4, sk_sp<GrRenderTargetContext>> renderTargetContexts;
for (GrOnFlushCallbackObject* onFlushCBObject : fOnFlushCBObjects) {
onFlushCBObject->preFlush(&onFlushProvider,
fFlushingOpListIDs.begin(), fFlushingOpListIDs.count(),
&renderTargetContexts);
for (const sk_sp<GrRenderTargetContext>& rtc : renderTargetContexts) {
sk_sp<GrRenderTargetOpList> onFlushOpList = sk_ref_sp(rtc->getRTOpList());
if (!onFlushOpList) {
continue; // Odd - but not a big deal
}
#ifdef SK_DEBUG
// OnFlush callbacks are already invoked during flush, and are therefore expected to
// handle resource allocation & usage on their own. (No deferred or lazy proxies!)
onFlushOpList->visitProxies_debugOnly([](GrSurfaceProxy* p) {
SkASSERT(!p->asTextureProxy() || !p->asTextureProxy()->texPriv().isDeferred());
SkASSERT(GrSurfaceProxy::LazyState::kNot == p->lazyInstantiationState());
});
#endif
onFlushOpList->makeClosed(*fContext->caps());
onFlushOpList->prepare(&flushState);
fOnFlushCBOpLists.push_back(std::move(onFlushOpList));
}
renderTargetContexts.reset();
}
}
#if 0
// Enable this to print out verbose GrOp information
for (int i = 0; i < fOpLists.count(); ++i) {
SkDEBUGCODE(fOpLists[i]->dump();)
}
#endif
int startIndex, stopIndex;
bool flushed = false;
{
GrResourceAllocator alloc(fContext->contextPriv().resourceProvider());
for (int i = 0; i < fOpLists.count(); ++i) {
fOpLists[i]->gatherProxyIntervals(&alloc);
alloc.markEndOfOpList(i);
}
#ifdef SK_DISABLE_EXPLICIT_GPU_RESOURCE_ALLOCATION
startIndex = 0;
stopIndex = fOpLists.count();
#else
GrResourceAllocator::AssignError error = GrResourceAllocator::AssignError::kNoError;
while (alloc.assign(&startIndex, &stopIndex, &error))
#endif
{
#ifndef SK_DISABLE_EXPLICIT_GPU_RESOURCE_ALLOCATION
if (GrResourceAllocator::AssignError::kFailedProxyInstantiation == error) {
for (int i = startIndex; i < stopIndex; ++i) {
fOpLists[i]->purgeOpsWithUninstantiatedProxies();
}
}
#endif
if (this->executeOpLists(startIndex, stopIndex, &flushState)) {
flushed = true;
}
}
}
fOpLists.reset();
GrSemaphoresSubmitted result = gpu->finishFlush(numSemaphores, backendSemaphores);
// We always have to notify the cache when it requested a flush so it can reset its state.
if (flushed || type == GrResourceCache::FlushType::kCacheRequested) {
fContext->contextPriv().getResourceCache()->notifyFlushOccurred(type);
}
for (GrOnFlushCallbackObject* onFlushCBObject : fOnFlushCBObjects) {
onFlushCBObject->postFlush(fTokenTracker.nextTokenToFlush(), fFlushingOpListIDs.begin(),
fFlushingOpListIDs.count());
}
fFlushingOpListIDs.reset();
fFlushing = false;
return result;
}
bool GrDrawingManager::executeOpLists(int startIndex, int stopIndex, GrOpFlushState* flushState) {
SkASSERT(startIndex <= stopIndex && stopIndex <= fOpLists.count());
bool anyOpListsExecuted = false;
for (int i = startIndex; i < stopIndex; ++i) {
if (!fOpLists[i]) {
continue;
}
#ifdef SK_DISABLE_EXPLICIT_GPU_RESOURCE_ALLOCATION
if (!fOpLists[i]->instantiate(fContext->contextPriv().resourceProvider())) {
SkDebugf("OpList failed to instantiate.\n");
fOpLists[i] = nullptr;
continue;
}
#else
SkASSERT(fOpLists[i]->isInstantiated());
#endif
// TODO: handle this instantiation via lazy surface proxies?
// Instantiate all deferred proxies (being built on worker threads) so we can upload them
fOpLists[i]->instantiateDeferredProxies(fContext->contextPriv().resourceProvider());
fOpLists[i]->prepare(flushState);
}
// Upload all data to the GPU
flushState->preExecuteDraws();
// Execute the onFlush op lists first, if any.
for (sk_sp<GrOpList>& onFlushOpList : fOnFlushCBOpLists) {
if (!onFlushOpList->execute(flushState)) {
SkDebugf("WARNING: onFlushOpList failed to execute.\n");
}
SkASSERT(onFlushOpList->unique());
onFlushOpList = nullptr;
}
fOnFlushCBOpLists.reset();
// Execute the normal op lists.
for (int i = startIndex; i < stopIndex; ++i) {
if (!fOpLists[i]) {
continue;
}
if (fOpLists[i]->execute(flushState)) {
anyOpListsExecuted = true;
}
}
SkASSERT(!flushState->commandBuffer());
SkASSERT(fTokenTracker.nextDrawToken() == fTokenTracker.nextTokenToFlush());
// We reset the flush state before the OpLists so that the last resources to be freed are those
// that are written to in the OpLists. This helps to make sure the most recently used resources
// are the last to be purged by the resource cache.
flushState->reset();
for (int i = startIndex; i < stopIndex; ++i) {
if (!fOpLists[i]) {
continue;
}
if (!fOpLists[i]->unique()) {
// TODO: Eventually this should be guaranteed unique.
// https://bugs.chromium.org/p/skia/issues/detail?id=7111
fOpLists[i]->endFlush();
}
fOpLists[i] = nullptr;
}
return anyOpListsExecuted;
}
GrSemaphoresSubmitted GrDrawingManager::prepareSurfaceForExternalIO(
GrSurfaceProxy* proxy, int numSemaphores, GrBackendSemaphore backendSemaphores[]) {
if (this->wasAbandoned()) {
return GrSemaphoresSubmitted::kNo;
}
SkASSERT(proxy);
GrSemaphoresSubmitted result = GrSemaphoresSubmitted::kNo;
if (proxy->priv().hasPendingIO() || numSemaphores) {
result = this->flush(proxy, numSemaphores, backendSemaphores);
}
if (!proxy->instantiate(fContext->contextPriv().resourceProvider())) {
return result;
}
GrGpu* gpu = fContext->contextPriv().getGpu();
GrSurface* surface = proxy->priv().peekSurface();
if (gpu && surface->asRenderTarget()) {
gpu->resolveRenderTarget(surface->asRenderTarget(), proxy->origin());
}
return result;
}
void GrDrawingManager::addOnFlushCallbackObject(GrOnFlushCallbackObject* onFlushCBObject) {
fOnFlushCBObjects.push_back(onFlushCBObject);
}
void GrDrawingManager::moveOpListsToDDL(SkDeferredDisplayList* ddl) {
#ifndef SK_RASTER_RECORDER_IMPLEMENTATION
for (int i = 0; i < fOpLists.count(); ++i) {
// no opList should receive a new command after this
fOpLists[i]->makeClosed(*fContext->caps());
}
ddl->fOpLists = std::move(fOpLists);
#endif
}
void GrDrawingManager::copyOpListsFromDDL(const SkDeferredDisplayList* ddl,
GrRenderTargetProxy* newDest) {
#ifndef SK_RASTER_RECORDER_IMPLEMENTATION
// Here we jam the proxy that backs the current replay SkSurface into the LazyProxyData.
// The lazy proxy that references it (in the copied opLists) will steal its GrTexture.
ddl->fLazyProxyData->fReplayDest = newDest;
fOpLists.push_back_n(ddl->fOpLists.count(), ddl->fOpLists.begin());
#endif
}
sk_sp<GrRenderTargetOpList> GrDrawingManager::newRTOpList(GrRenderTargetProxy* rtp,
bool managedOpList) {
SkASSERT(fContext);
// This is a temporary fix for the partial-MDB world. In that world we're not reordering
// so ops that (in the single opList world) would've just glommed onto the end of the single
// opList but referred to a far earlier RT need to appear in their own opList.
if (!fOpLists.empty()) {
fOpLists.back()->makeClosed(*fContext->caps());
}
auto resourceProvider = fContext->contextPriv().resourceProvider();
sk_sp<GrRenderTargetOpList> opList(new GrRenderTargetOpList(rtp,
resourceProvider,
fContext->getAuditTrail()));
SkASSERT(rtp->getLastOpList() == opList.get());
if (managedOpList) {
fOpLists.push_back() = opList;
}
return opList;
}
sk_sp<GrTextureOpList> GrDrawingManager::newTextureOpList(GrTextureProxy* textureProxy) {
SkASSERT(fContext);
// This is a temporary fix for the partial-MDB world. In that world we're not reordering
// so ops that (in the single opList world) would've just glommed onto the end of the single
// opList but referred to a far earlier RT need to appear in their own opList.
if (!fOpLists.empty()) {
fOpLists.back()->makeClosed(*fContext->caps());
}
sk_sp<GrTextureOpList> opList(new GrTextureOpList(fContext->contextPriv().resourceProvider(),
textureProxy,
fContext->getAuditTrail()));
SkASSERT(textureProxy->getLastOpList() == opList.get());
fOpLists.push_back() = opList;
return opList;
}
GrAtlasTextContext* GrDrawingManager::getAtlasTextContext() {
if (!fAtlasTextContext) {
fAtlasTextContext = GrAtlasTextContext::Make(fOptionsForAtlasTextContext);
}
return fAtlasTextContext.get();
}
/*
* This method finds a path renderer that can draw the specified path on
* the provided target.
* Due to its expense, the software path renderer has split out so it can
* can be individually allowed/disallowed via the "allowSW" boolean.
*/
GrPathRenderer* GrDrawingManager::getPathRenderer(const GrPathRenderer::CanDrawPathArgs& args,
bool allowSW,
GrPathRendererChain::DrawType drawType,
GrPathRenderer::StencilSupport* stencilSupport) {
if (!fPathRendererChain) {
fPathRendererChain = new GrPathRendererChain(fContext, fOptionsForPathRendererChain);
}
GrPathRenderer* pr = fPathRendererChain->getPathRenderer(args, drawType, stencilSupport);
if (!pr && allowSW) {
if (!fSoftwarePathRenderer) {
fSoftwarePathRenderer =
new GrSoftwarePathRenderer(fContext->contextPriv().proxyProvider(),
fOptionsForPathRendererChain.fAllowPathMaskCaching);
}
if (GrPathRenderer::CanDrawPath::kNo != fSoftwarePathRenderer->canDrawPath(args)) {
pr = fSoftwarePathRenderer;
}
}
return pr;
}
GrCoverageCountingPathRenderer* GrDrawingManager::getCoverageCountingPathRenderer() {
if (!fPathRendererChain) {
fPathRendererChain = new GrPathRendererChain(fContext, fOptionsForPathRendererChain);
}
return fPathRendererChain->getCoverageCountingPathRenderer();
}
sk_sp<GrRenderTargetContext> GrDrawingManager::makeRenderTargetContext(
sk_sp<GrSurfaceProxy> sProxy,
sk_sp<SkColorSpace> colorSpace,
const SkSurfaceProps* surfaceProps,
bool managedOpList) {
if (this->wasAbandoned() || !sProxy->asRenderTargetProxy()) {
return nullptr;
}
// SkSurface catches bad color space usage at creation. This check handles anything that slips
// by, including internal usage. We allow a null color space here, for read/write pixels and
// other special code paths. If a color space is provided, though, enforce all other rules.
if (colorSpace && !SkSurface_Gpu::Valid(fContext, sProxy->config(), colorSpace.get())) {
SkDEBUGFAIL("Invalid config and colorspace combination");
return nullptr;
}
sk_sp<GrRenderTargetProxy> rtp(sk_ref_sp(sProxy->asRenderTargetProxy()));
bool useDIF = false;
if (surfaceProps) {
useDIF = surfaceProps->isUseDeviceIndependentFonts();
}
if (useDIF && fContext->caps()->shaderCaps()->pathRenderingSupport() &&
GrFSAAType::kNone != rtp->fsaaType()) {
return sk_sp<GrRenderTargetContext>(new GrPathRenderingRenderTargetContext(
fContext, this, std::move(rtp),
std::move(colorSpace), surfaceProps,
fContext->getAuditTrail(), fSingleOwner));
}
return sk_sp<GrRenderTargetContext>(new GrRenderTargetContext(fContext, this, std::move(rtp),
std::move(colorSpace),
surfaceProps,
fContext->getAuditTrail(),
fSingleOwner, managedOpList));
}
sk_sp<GrTextureContext> GrDrawingManager::makeTextureContext(sk_sp<GrSurfaceProxy> sProxy,
sk_sp<SkColorSpace> colorSpace) {
if (this->wasAbandoned() || !sProxy->asTextureProxy()) {
return nullptr;
}
// SkSurface catches bad color space usage at creation. This check handles anything that slips
// by, including internal usage. We allow a null color space here, for read/write pixels and
// other special code paths. If a color space is provided, though, enforce all other rules.
if (colorSpace && !SkSurface_Gpu::Valid(fContext, sProxy->config(), colorSpace.get())) {
SkDEBUGFAIL("Invalid config and colorspace combination");
return nullptr;
}
// GrTextureRenderTargets should always be using GrRenderTargetContext
SkASSERT(!sProxy->asRenderTargetProxy());
sk_sp<GrTextureProxy> textureProxy(sk_ref_sp(sProxy->asTextureProxy()));
return sk_sp<GrTextureContext>(new GrTextureContext(fContext, this, std::move(textureProxy),
std::move(colorSpace),
fContext->getAuditTrail(),
fSingleOwner));
}