| /* | |
| * 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 "GrDrawOpAtlas.h" | |
| #include "GrContext.h" | |
| #include "GrContextPriv.h" | |
| #include "GrOnFlushResourceProvider.h" | |
| #include "GrOpFlushState.h" | |
| #include "GrRectanizer.h" | |
| #include "GrProxyProvider.h" | |
| #include "GrResourceProvider.h" | |
| #include "GrSurfaceProxyPriv.h" | |
| #include "GrTexture.h" | |
| #include "GrTracing.h" | |
| // When proxy allocation is deferred until flush time the proxies acting as atlases require | |
| // special handling. This is because the usage that can be determined from the ops themselves | |
| // isn't sufficient. Independent of the ops there will be ASAP and inline uploads to the | |
| // atlases. Extending the usage interval of any op that uses an atlas to the start of the | |
| // flush (as is done for proxies that are used for sw-generated masks) also won't work because | |
| // the atlas persists even beyond the last use in an op - for a given flush. Given this, atlases | |
| // must explicitly manage the lifetime of their backing proxies via the onFlushCallback system | |
| // (which calls this method). | |
| void GrDrawOpAtlas::instantiate(GrOnFlushResourceProvider* onFlushResourceProvider) { | |
| for (uint32_t i = 0; i < fNumActivePages; ++i) { | |
| // All the atlas pages are now instantiated at flush time in the activeNewPage method. | |
| SkASSERT(fProxies[i] && fProxies[i]->isInstantiated()); | |
| } | |
| } | |
| std::unique_ptr<GrDrawOpAtlas> GrDrawOpAtlas::Make(GrProxyProvider* proxyProvider, | |
| GrPixelConfig config, int width, | |
| int height, int numPlotsX, int numPlotsY, | |
| AllowMultitexturing allowMultitexturing, | |
| GrDrawOpAtlas::EvictionFunc func, void* data) { | |
| std::unique_ptr<GrDrawOpAtlas> atlas(new GrDrawOpAtlas(proxyProvider, config, width, height, | |
| numPlotsX, numPlotsY, | |
| allowMultitexturing)); | |
| if (!atlas->getProxies()[0]) { | |
| return nullptr; | |
| } | |
| atlas->registerEvictionCallback(func, data); | |
| return atlas; | |
| } | |
| #ifdef DUMP_ATLAS_DATA | |
| static bool gDumpAtlasData = false; | |
| #endif | |
| //////////////////////////////////////////////////////////////////////////////// | |
| GrDrawOpAtlas::Plot::Plot(int pageIndex, int plotIndex, uint64_t genID, int offX, int offY, | |
| int width, int height, GrPixelConfig config) | |
| : fLastUpload(GrDeferredUploadToken::AlreadyFlushedToken()) | |
| , fLastUse(GrDeferredUploadToken::AlreadyFlushedToken()) | |
| , fFlushesSinceLastUse(0) | |
| , fPageIndex(pageIndex) | |
| , fPlotIndex(plotIndex) | |
| , fGenID(genID) | |
| , fID(CreateId(fPageIndex, fPlotIndex, fGenID)) | |
| , fData(nullptr) | |
| , fWidth(width) | |
| , fHeight(height) | |
| , fX(offX) | |
| , fY(offY) | |
| , fRects(nullptr) | |
| , fOffset(SkIPoint16::Make(fX * fWidth, fY * fHeight)) | |
| , fConfig(config) | |
| , fBytesPerPixel(GrBytesPerPixel(config)) | |
| #ifdef SK_DEBUG | |
| , fDirty(false) | |
| #endif | |
| { | |
| // We expect the allocated dimensions to be a multiple of 4 bytes | |
| SkASSERT(((width*fBytesPerPixel) & 0x3) == 0); | |
| // The padding for faster uploads only works for 1, 2 and 4 byte texels | |
| SkASSERT(fBytesPerPixel != 3 && fBytesPerPixel <= 4); | |
| fDirtyRect.setEmpty(); | |
| } | |
| GrDrawOpAtlas::Plot::~Plot() { | |
| sk_free(fData); | |
| delete fRects; | |
| } | |
| bool GrDrawOpAtlas::Plot::addSubImage(int width, int height, const void* image, SkIPoint16* loc) { | |
| SkASSERT(width <= fWidth && height <= fHeight); | |
| if (!fRects) { | |
| fRects = GrRectanizer::Factory(fWidth, fHeight); | |
| } | |
| if (!fRects->addRect(width, height, loc)) { | |
| return false; | |
| } | |
| if (!fData) { | |
| fData = reinterpret_cast<unsigned char*>(sk_calloc_throw(fBytesPerPixel * fWidth * | |
| fHeight)); | |
| } | |
| size_t rowBytes = width * fBytesPerPixel; | |
| const unsigned char* imagePtr = (const unsigned char*)image; | |
| // point ourselves at the right starting spot | |
| unsigned char* dataPtr = fData; | |
| dataPtr += fBytesPerPixel * fWidth * loc->fY; | |
| dataPtr += fBytesPerPixel * loc->fX; | |
| // copy into the data buffer, swizzling as we go if this is ARGB data | |
| if (4 == fBytesPerPixel && kSkia8888_GrPixelConfig == kBGRA_8888_GrPixelConfig) { | |
| for (int i = 0; i < height; ++i) { | |
| SkOpts::RGBA_to_BGRA(reinterpret_cast<uint32_t*>(dataPtr), imagePtr, width); | |
| dataPtr += fBytesPerPixel * fWidth; | |
| imagePtr += rowBytes; | |
| } | |
| } else { | |
| for (int i = 0; i < height; ++i) { | |
| memcpy(dataPtr, imagePtr, rowBytes); | |
| dataPtr += fBytesPerPixel * fWidth; | |
| imagePtr += rowBytes; | |
| } | |
| } | |
| fDirtyRect.join(loc->fX, loc->fY, loc->fX + width, loc->fY + height); | |
| loc->fX += fOffset.fX; | |
| loc->fY += fOffset.fY; | |
| SkDEBUGCODE(fDirty = true;) | |
| return true; | |
| } | |
| void GrDrawOpAtlas::Plot::uploadToTexture(GrDeferredTextureUploadWritePixelsFn& writePixels, | |
| GrTextureProxy* proxy) { | |
| // We should only be issuing uploads if we are in fact dirty | |
| SkASSERT(fDirty && fData && proxy && proxy->peekTexture()); | |
| TRACE_EVENT0("skia.gpu", TRACE_FUNC); | |
| size_t rowBytes = fBytesPerPixel * fWidth; | |
| const unsigned char* dataPtr = fData; | |
| // Clamp to 4-byte aligned boundaries | |
| unsigned int clearBits = 0x3 / fBytesPerPixel; | |
| fDirtyRect.fLeft &= ~clearBits; | |
| fDirtyRect.fRight += clearBits; | |
| fDirtyRect.fRight &= ~clearBits; | |
| SkASSERT(fDirtyRect.fRight <= fWidth); | |
| // Set up dataPtr | |
| dataPtr += rowBytes * fDirtyRect.fTop; | |
| dataPtr += fBytesPerPixel * fDirtyRect.fLeft; | |
| // TODO: Make GrDrawOpAtlas store a GrColorType rather than GrPixelConfig. | |
| auto colorType = GrPixelConfigToColorType(fConfig); | |
| writePixels(proxy, fOffset.fX + fDirtyRect.fLeft, fOffset.fY + fDirtyRect.fTop, | |
| fDirtyRect.width(), fDirtyRect.height(), colorType, dataPtr, rowBytes); | |
| fDirtyRect.setEmpty(); | |
| SkDEBUGCODE(fDirty = false;) | |
| } | |
| void GrDrawOpAtlas::Plot::resetRects() { | |
| if (fRects) { | |
| fRects->reset(); | |
| } | |
| fGenID++; | |
| fID = CreateId(fPageIndex, fPlotIndex, fGenID); | |
| fLastUpload = GrDeferredUploadToken::AlreadyFlushedToken(); | |
| fLastUse = GrDeferredUploadToken::AlreadyFlushedToken(); | |
| // zero out the plot | |
| if (fData) { | |
| sk_bzero(fData, fBytesPerPixel * fWidth * fHeight); | |
| } | |
| fDirtyRect.setEmpty(); | |
| SkDEBUGCODE(fDirty = false;) | |
| } | |
| /////////////////////////////////////////////////////////////////////////////// | |
| GrDrawOpAtlas::GrDrawOpAtlas(GrProxyProvider* proxyProvider, | |
| GrPixelConfig config, int width, int height, | |
| int numPlotsX, int numPlotsY, AllowMultitexturing allowMultitexturing) | |
| : fPixelConfig(config) | |
| , fTextureWidth(width) | |
| , fTextureHeight(height) | |
| , fAtlasGeneration(kInvalidAtlasGeneration + 1) | |
| , fPrevFlushToken(GrDeferredUploadToken::AlreadyFlushedToken()) | |
| , fMaxPages(AllowMultitexturing::kYes == allowMultitexturing ? kMaxMultitexturePages : 1) | |
| , fNumActivePages(0) { | |
| fPlotWidth = fTextureWidth / numPlotsX; | |
| fPlotHeight = fTextureHeight / numPlotsY; | |
| SkASSERT(numPlotsX * numPlotsY <= BulkUseTokenUpdater::kMaxPlots); | |
| SkASSERT(fPlotWidth * numPlotsX == fTextureWidth); | |
| SkASSERT(fPlotHeight * numPlotsY == fTextureHeight); | |
| fNumPlots = numPlotsX * numPlotsY; | |
| this->createPages(proxyProvider); | |
| } | |
| inline void GrDrawOpAtlas::processEviction(AtlasID id) { | |
| for (int i = 0; i < fEvictionCallbacks.count(); i++) { | |
| (*fEvictionCallbacks[i].fFunc)(id, fEvictionCallbacks[i].fData); | |
| } | |
| ++fAtlasGeneration; | |
| } | |
| inline bool GrDrawOpAtlas::updatePlot(GrDeferredUploadTarget* target, AtlasID* id, Plot* plot) { | |
| int pageIdx = GetPageIndexFromID(plot->id()); | |
| this->makeMRU(plot, pageIdx); | |
| // If our most recent upload has already occurred then we have to insert a new | |
| // upload. Otherwise, we already have a scheduled upload that hasn't yet ocurred. | |
| // This new update will piggy back on that previously scheduled update. | |
| if (plot->lastUploadToken() < target->tokenTracker()->nextTokenToFlush()) { | |
| // With c+14 we could move sk_sp into lamba to only ref once. | |
| sk_sp<Plot> plotsp(SkRef(plot)); | |
| GrTextureProxy* proxy = fProxies[pageIdx].get(); | |
| SkASSERT(proxy->isInstantiated()); // This is occurring at flush time | |
| GrDeferredUploadToken lastUploadToken = target->addASAPUpload( | |
| [plotsp, proxy](GrDeferredTextureUploadWritePixelsFn& writePixels) { | |
| plotsp->uploadToTexture(writePixels, proxy); | |
| }); | |
| plot->setLastUploadToken(lastUploadToken); | |
| } | |
| *id = plot->id(); | |
| return true; | |
| } | |
| bool GrDrawOpAtlas::uploadToPage(unsigned int pageIdx, AtlasID* id, GrDeferredUploadTarget* target, | |
| int width, int height, const void* image, SkIPoint16* loc) { | |
| SkASSERT(fProxies[pageIdx] && fProxies[pageIdx]->isInstantiated()); | |
| // look through all allocated plots for one we can share, in Most Recently Refed order | |
| PlotList::Iter plotIter; | |
| plotIter.init(fPages[pageIdx].fPlotList, PlotList::Iter::kHead_IterStart); | |
| for (Plot* plot = plotIter.get(); plot; plot = plotIter.next()) { | |
| SkASSERT(GrBytesPerPixel(fProxies[pageIdx]->config()) == plot->bpp()); | |
| if (plot->addSubImage(width, height, image, loc)) { | |
| return this->updatePlot(target, id, plot); | |
| } | |
| } | |
| return false; | |
| } | |
| // Number of atlas-related flushes beyond which we consider a plot to no longer be in use. | |
| // | |
| // This value is somewhat arbitrary -- the idea is to keep it low enough that | |
| // a page with unused plots will get removed reasonably quickly, but allow it | |
| // to hang around for a bit in case it's needed. The assumption is that flushes | |
| // are rare; i.e., we are not continually refreshing the frame. | |
| static constexpr auto kRecentlyUsedCount = 256; | |
| GrDrawOpAtlas::ErrorCode GrDrawOpAtlas::addToAtlas(GrResourceProvider* resourceProvider, | |
| AtlasID* id, GrDeferredUploadTarget* target, | |
| int width, int height, | |
| const void* image, SkIPoint16* loc) { | |
| if (width > fPlotWidth || height > fPlotHeight) { | |
| return ErrorCode::kError; | |
| } | |
| // Look through each page to see if we can upload without having to flush | |
| // We prioritize this upload to the first pages, not the most recently used, to make it easier | |
| // to remove unused pages in reverse page order. | |
| for (unsigned int pageIdx = 0; pageIdx < fNumActivePages; ++pageIdx) { | |
| if (this->uploadToPage(pageIdx, id, target, width, height, image, loc)) { | |
| return ErrorCode::kSucceeded; | |
| } | |
| } | |
| // If the above fails, then see if the least recently used plot per page has already been | |
| // flushed to the gpu if we're at max page allocation, or if the plot has aged out otherwise. | |
| // We wait until we've grown to the full number of pages to begin evicting already flushed | |
| // plots so that we can maximize the opportunity for reuse. | |
| // As before we prioritize this upload to the first pages, not the most recently used. | |
| if (fNumActivePages == this->maxPages()) { | |
| for (unsigned int pageIdx = 0; pageIdx < fNumActivePages; ++pageIdx) { | |
| Plot* plot = fPages[pageIdx].fPlotList.tail(); | |
| SkASSERT(plot); | |
| if (plot->lastUseToken() < target->tokenTracker()->nextTokenToFlush() || | |
| plot->flushesSinceLastUsed() >= kRecentlyUsedCount) { | |
| this->processEvictionAndResetRects(plot); | |
| SkASSERT(GrBytesPerPixel(fProxies[pageIdx]->config()) == plot->bpp()); | |
| SkDEBUGCODE(bool verify = )plot->addSubImage(width, height, image, loc); | |
| SkASSERT(verify); | |
| if (!this->updatePlot(target, id, plot)) { | |
| return ErrorCode::kError; | |
| } | |
| return ErrorCode::kSucceeded; | |
| } | |
| } | |
| } else { | |
| // If we haven't activated all the available pages, try to create a new one and add to it | |
| if (!this->activateNewPage(resourceProvider)) { | |
| return ErrorCode::kError; | |
| } | |
| if (this->uploadToPage(fNumActivePages-1, id, target, width, height, image, loc)) { | |
| return ErrorCode::kSucceeded; | |
| } else { | |
| // If we fail to upload to a newly activated page then something has gone terribly | |
| // wrong - return an error | |
| return ErrorCode::kError; | |
| } | |
| } | |
| if (!fNumActivePages) { | |
| return ErrorCode::kError; | |
| } | |
| // Try to find a plot that we can perform an inline upload to. | |
| // We prioritize this upload in reverse order of pages to counterbalance the order above. | |
| Plot* plot = nullptr; | |
| for (int pageIdx = ((int)fNumActivePages)-1; pageIdx >= 0; --pageIdx) { | |
| Plot* currentPlot = fPages[pageIdx].fPlotList.tail(); | |
| if (currentPlot->lastUseToken() != target->tokenTracker()->nextDrawToken()) { | |
| plot = currentPlot; | |
| break; | |
| } | |
| } | |
| // If we can't find a plot that is not used in a draw currently being prepared by an op, then | |
| // we have to fail. This gives the op a chance to enqueue the draw, and call back into this | |
| // function. When that draw is enqueued, the draw token advances, and the subsequent call will | |
| // continue past this branch and prepare an inline upload that will occur after the enqueued | |
| // draw which references the plot's pre-upload content. | |
| if (!plot) { | |
| return ErrorCode::kTryAgain; | |
| } | |
| this->processEviction(plot->id()); | |
| int pageIdx = GetPageIndexFromID(plot->id()); | |
| fPages[pageIdx].fPlotList.remove(plot); | |
| sk_sp<Plot>& newPlot = fPages[pageIdx].fPlotArray[plot->index()]; | |
| newPlot.reset(plot->clone()); | |
| fPages[pageIdx].fPlotList.addToHead(newPlot.get()); | |
| SkASSERT(GrBytesPerPixel(fProxies[pageIdx]->config()) == newPlot->bpp()); | |
| SkDEBUGCODE(bool verify = )newPlot->addSubImage(width, height, image, loc); | |
| SkASSERT(verify); | |
| // Note that this plot will be uploaded inline with the draws whereas the | |
| // one it displaced most likely was uploaded ASAP. | |
| // With c+14 we could move sk_sp into lambda to only ref once. | |
| sk_sp<Plot> plotsp(SkRef(newPlot.get())); | |
| GrTextureProxy* proxy = fProxies[pageIdx].get(); | |
| SkASSERT(proxy->isInstantiated()); | |
| GrDeferredUploadToken lastUploadToken = target->addInlineUpload( | |
| [plotsp, proxy](GrDeferredTextureUploadWritePixelsFn& writePixels) { | |
| plotsp->uploadToTexture(writePixels, proxy); | |
| }); | |
| newPlot->setLastUploadToken(lastUploadToken); | |
| *id = newPlot->id(); | |
| return ErrorCode::kSucceeded; | |
| } | |
| void GrDrawOpAtlas::compact(GrDeferredUploadToken startTokenForNextFlush) { | |
| if (fNumActivePages <= 1) { | |
| fPrevFlushToken = startTokenForNextFlush; | |
| return; | |
| } | |
| // For all plots, reset number of flushes since used if used this frame. | |
| PlotList::Iter plotIter; | |
| bool atlasUsedThisFlush = false; | |
| for (uint32_t pageIndex = 0; pageIndex < fNumActivePages; ++pageIndex) { | |
| plotIter.init(fPages[pageIndex].fPlotList, PlotList::Iter::kHead_IterStart); | |
| while (Plot* plot = plotIter.get()) { | |
| // Reset number of flushes since used | |
| if (plot->lastUseToken().inInterval(fPrevFlushToken, startTokenForNextFlush)) { | |
| plot->resetFlushesSinceLastUsed(); | |
| atlasUsedThisFlush = true; | |
| } | |
| plotIter.next(); | |
| } | |
| } | |
| // We only try to compact if the atlas was used in the recently completed flush. | |
| // This is to handle the case where a lot of text or path rendering has occurred but then just | |
| // a blinking cursor is drawn. | |
| // TODO: consider if we should also do this if it's been a long time since the last atlas use | |
| if (atlasUsedThisFlush) { | |
| SkTArray<Plot*> availablePlots; | |
| uint32_t lastPageIndex = fNumActivePages - 1; | |
| // For all plots but the last one, update number of flushes since used, and check to see | |
| // if there are any in the first pages that the last page can safely upload to. | |
| for (uint32_t pageIndex = 0; pageIndex < lastPageIndex; ++pageIndex) { | |
| #ifdef DUMP_ATLAS_DATA | |
| if (gDumpAtlasData) { | |
| SkDebugf("page %d: ", pageIndex); | |
| } | |
| #endif | |
| plotIter.init(fPages[pageIndex].fPlotList, PlotList::Iter::kHead_IterStart); | |
| while (Plot* plot = plotIter.get()) { | |
| // Update number of flushes since plot was last used | |
| // We only increment the 'sinceLastUsed' count for flushes where the atlas was used | |
| // to avoid deleting everything when we return to text drawing in the blinking | |
| // cursor case | |
| if (!plot->lastUseToken().inInterval(fPrevFlushToken, startTokenForNextFlush)) { | |
| plot->incFlushesSinceLastUsed(); | |
| } | |
| #ifdef DUMP_ATLAS_DATA | |
| if (gDumpAtlasData) { | |
| SkDebugf("%d ", plot->flushesSinceLastUsed()); | |
| } | |
| #endif | |
| // Count plots we can potentially upload to in all pages except the last one | |
| // (the potential compactee). | |
| if (plot->flushesSinceLastUsed() > kRecentlyUsedCount) { | |
| availablePlots.push_back() = plot; | |
| } | |
| plotIter.next(); | |
| } | |
| #ifdef DUMP_ATLAS_DATA | |
| if (gDumpAtlasData) { | |
| SkDebugf("\n"); | |
| } | |
| #endif | |
| } | |
| // Count recently used plots in the last page and evict any that are no longer in use. | |
| // Since we prioritize uploading to the first pages, this will eventually | |
| // clear out usage of this page unless we have a large need. | |
| plotIter.init(fPages[lastPageIndex].fPlotList, PlotList::Iter::kHead_IterStart); | |
| unsigned int usedPlots = 0; | |
| #ifdef DUMP_ATLAS_DATA | |
| if (gDumpAtlasData) { | |
| SkDebugf("page %d: ", lastPageIndex); | |
| } | |
| #endif | |
| while (Plot* plot = plotIter.get()) { | |
| // Update number of flushes since plot was last used | |
| if (!plot->lastUseToken().inInterval(fPrevFlushToken, startTokenForNextFlush)) { | |
| plot->incFlushesSinceLastUsed(); | |
| } | |
| #ifdef DUMP_ATLAS_DATA | |
| if (gDumpAtlasData) { | |
| SkDebugf("%d ", plot->flushesSinceLastUsed()); | |
| } | |
| #endif | |
| // If this plot was used recently | |
| if (plot->flushesSinceLastUsed() <= kRecentlyUsedCount) { | |
| usedPlots++; | |
| } else if (plot->lastUseToken() != GrDeferredUploadToken::AlreadyFlushedToken()) { | |
| // otherwise if aged out just evict it. | |
| this->processEvictionAndResetRects(plot); | |
| } | |
| plotIter.next(); | |
| } | |
| #ifdef DUMP_ATLAS_DATA | |
| if (gDumpAtlasData) { | |
| SkDebugf("\n"); | |
| } | |
| #endif | |
| // If recently used plots in the last page are using less than a quarter of the page, try | |
| // to evict them if there's available space in earlier pages. Since we prioritize uploading | |
| // to the first pages, this will eventually clear out usage of this page unless we have a | |
| // large need. | |
| if (availablePlots.count() && usedPlots && usedPlots <= fNumPlots / 4) { | |
| plotIter.init(fPages[lastPageIndex].fPlotList, PlotList::Iter::kHead_IterStart); | |
| while (Plot* plot = plotIter.get()) { | |
| // If this plot was used recently | |
| if (plot->flushesSinceLastUsed() <= kRecentlyUsedCount) { | |
| // See if there's room in an earlier page and if so evict. | |
| // We need to be somewhat harsh here so that a handful of plots that are | |
| // consistently in use don't end up locking the page in memory. | |
| if (availablePlots.count() > 0) { | |
| this->processEvictionAndResetRects(plot); | |
| this->processEvictionAndResetRects(availablePlots.back()); | |
| availablePlots.pop_back(); | |
| --usedPlots; | |
| } | |
| if (!usedPlots || !availablePlots.count()) { | |
| break; | |
| } | |
| } | |
| plotIter.next(); | |
| } | |
| } | |
| // If none of the plots in the last page have been used recently, delete it. | |
| if (!usedPlots) { | |
| #ifdef DUMP_ATLAS_DATA | |
| if (gDumpAtlasData) { | |
| SkDebugf("delete %d\n", fNumPages-1); | |
| } | |
| #endif | |
| this->deactivateLastPage(); | |
| } | |
| } | |
| fPrevFlushToken = startTokenForNextFlush; | |
| } | |
| bool GrDrawOpAtlas::createPages(GrProxyProvider* proxyProvider) { | |
| SkASSERT(SkIsPow2(fTextureWidth) && SkIsPow2(fTextureHeight)); | |
| GrSurfaceDesc desc; | |
| desc.fFlags = kNone_GrSurfaceFlags; | |
| desc.fWidth = fTextureWidth; | |
| desc.fHeight = fTextureHeight; | |
| desc.fConfig = fPixelConfig; | |
| int numPlotsX = fTextureWidth/fPlotWidth; | |
| int numPlotsY = fTextureHeight/fPlotHeight; | |
| for (uint32_t i = 0; i < this->maxPages(); ++i) { | |
| fProxies[i] = proxyProvider->createProxy(desc, kTopLeft_GrSurfaceOrigin, | |
| SkBackingFit::kExact, SkBudgeted::kYes, GrInternalSurfaceFlags::kNoPendingIO); | |
| if (!fProxies[i]) { | |
| return false; | |
| } | |
| // set up allocated plots | |
| fPages[i].fPlotArray.reset(new sk_sp<Plot>[ numPlotsX * numPlotsY ]); | |
| sk_sp<Plot>* currPlot = fPages[i].fPlotArray.get(); | |
| for (int y = numPlotsY - 1, r = 0; y >= 0; --y, ++r) { | |
| for (int x = numPlotsX - 1, c = 0; x >= 0; --x, ++c) { | |
| uint32_t plotIndex = r * numPlotsX + c; | |
| currPlot->reset(new Plot(i, plotIndex, 1, x, y, fPlotWidth, fPlotHeight, | |
| fPixelConfig)); | |
| // build LRU list | |
| fPages[i].fPlotList.addToHead(currPlot->get()); | |
| ++currPlot; | |
| } | |
| } | |
| } | |
| return true; | |
| } | |
| bool GrDrawOpAtlas::activateNewPage(GrResourceProvider* resourceProvider) { | |
| SkASSERT(fNumActivePages < this->maxPages()); | |
| if (!fProxies[fNumActivePages]->instantiate(resourceProvider)) { | |
| return false; | |
| } | |
| #ifdef DUMP_ATLAS_DATA | |
| if (gDumpAtlasData) { | |
| SkDebugf("activated page#: %d\n", fNumActivePages); | |
| } | |
| #endif | |
| ++fNumActivePages; | |
| return true; | |
| } | |
| inline void GrDrawOpAtlas::deactivateLastPage() { | |
| SkASSERT(fNumActivePages); | |
| uint32_t lastPageIndex = fNumActivePages - 1; | |
| int numPlotsX = fTextureWidth/fPlotWidth; | |
| int numPlotsY = fTextureHeight/fPlotHeight; | |
| fPages[lastPageIndex].fPlotList.reset(); | |
| for (int r = 0; r < numPlotsY; ++r) { | |
| for (int c = 0; c < numPlotsX; ++c) { | |
| uint32_t plotIndex = r * numPlotsX + c; | |
| Plot* currPlot = fPages[lastPageIndex].fPlotArray[plotIndex].get(); | |
| currPlot->resetRects(); | |
| currPlot->resetFlushesSinceLastUsed(); | |
| // rebuild the LRU list | |
| SkDEBUGCODE(currPlot->fPrev = currPlot->fNext = nullptr); | |
| SkDEBUGCODE(currPlot->fList = nullptr); | |
| fPages[lastPageIndex].fPlotList.addToHead(currPlot); | |
| } | |
| } | |
| // remove ref to the backing texture | |
| fProxies[lastPageIndex]->deInstantiate(); | |
| --fNumActivePages; | |
| } |