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Unified Diff: src/gpu/GrLayerAtlas.cpp

Issue 1950523002: Remove GrLayerHoister (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Forgot to remove some files Created 4 years, 5 months ago
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Index: src/gpu/GrLayerAtlas.cpp
diff --git a/src/gpu/GrLayerAtlas.cpp b/src/gpu/GrLayerAtlas.cpp
deleted file mode 100644
index ccb208a71c23025d807aef6efc45c12271ed20a1..0000000000000000000000000000000000000000
--- a/src/gpu/GrLayerAtlas.cpp
+++ /dev/null
@@ -1,168 +0,0 @@
-/*
- * Copyright 2010 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "GrGpuResourcePriv.h"
-#include "GrLayerAtlas.h"
-#include "GrRectanizer.h"
-#include "GrTextureProvider.h"
-
-///////////////////////////////////////////////////////////////////////////////
-GrLayerAtlas::Plot::Plot()
- : fID(-1)
- , fRects(nullptr) {
- fOffset.set(0, 0);
-}
-
-GrLayerAtlas::Plot::~Plot() {
- delete fRects;
-}
-
-void GrLayerAtlas::Plot::init(int id, int offX, int offY, int width, int height) {
- fID = id;
- fRects = GrRectanizer::Factory(width, height);
- fOffset.set(offX * width, offY * height);
-}
-
-bool GrLayerAtlas::Plot::allocateRect(int width, int height, SkIPoint16* loc) {
- if (!fRects->addRect(width, height, loc)) {
- return false;
- }
-
- loc->fX += fOffset.fX;
- loc->fY += fOffset.fY;
- return true;
-}
-
-void GrLayerAtlas::Plot::reset() {
- SkASSERT(fRects);
- fRects->reset();
-}
-
-///////////////////////////////////////////////////////////////////////////////
-GR_DECLARE_STATIC_UNIQUE_KEY(gLayerAtlasKey);
-static const GrUniqueKey& get_layer_atlas_key() {
- GR_DEFINE_STATIC_UNIQUE_KEY(gLayerAtlasKey);
- return gLayerAtlasKey;
-}
-
-bool GrLayerAtlas::reattachBackingTexture() {
- SkASSERT(!fTexture);
-
- fTexture.reset(fTexProvider->findAndRefTextureByUniqueKey(get_layer_atlas_key()));
- return fTexture != nullptr;
-}
-
-void GrLayerAtlas::createBackingTexture() {
- SkASSERT(!fTexture);
-
- GrSurfaceDesc desc;
- desc.fFlags = fFlags;
- desc.fWidth = fBackingTextureSize.width();
- desc.fHeight = fBackingTextureSize.height();
- desc.fConfig = fPixelConfig;
-
- fTexture.reset(fTexProvider->createTexture(desc, SkBudgeted::kYes, nullptr, 0));
-
- fTexture->resourcePriv().setUniqueKey(get_layer_atlas_key());
-}
-
-GrLayerAtlas::GrLayerAtlas(GrTextureProvider* texProvider, GrPixelConfig config,
- GrSurfaceFlags flags,
- const SkISize& backingTextureSize,
- int numPlotsX, int numPlotsY) {
- fTexProvider = texProvider;
- fPixelConfig = config;
- fFlags = flags;
- fBackingTextureSize = backingTextureSize;
-
- int textureWidth = fBackingTextureSize.width();
- int textureHeight = fBackingTextureSize.height();
-
- int plotWidth = textureWidth / numPlotsX;
- int plotHeight = textureHeight / numPlotsY;
-
- SkASSERT(plotWidth * numPlotsX == textureWidth);
- SkASSERT(plotHeight * numPlotsY == textureHeight);
-
- // We currently do not support compressed atlases...
- SkASSERT(!GrPixelConfigIsCompressed(config));
-
- // set up allocated plots
- fPlotArray = new Plot[numPlotsX * numPlotsY];
-
- Plot* currPlot = fPlotArray;
- for (int y = numPlotsY-1; y >= 0; --y) {
- for (int x = numPlotsX-1; x >= 0; --x) {
- currPlot->init(y*numPlotsX+x, x, y, plotWidth, plotHeight);
-
- // build LRU list
- fPlotList.addToHead(currPlot);
- ++currPlot;
- }
- }
-}
-
-void GrLayerAtlas::resetPlots() {
- PlotIter iter;
- for (Plot* plot = iter.init(fPlotList, PlotIter::kHead_IterStart); plot; plot = iter.next()) {
- plot->reset();
- }
-}
-
-GrLayerAtlas::~GrLayerAtlas() {
- delete[] fPlotArray;
-}
-
-void GrLayerAtlas::makeMRU(Plot* plot) {
- if (fPlotList.head() == plot) {
- return;
- }
-
- fPlotList.remove(plot);
- fPlotList.addToHead(plot);
-};
-
-GrLayerAtlas::Plot* GrLayerAtlas::addToAtlas(ClientPlotUsage* usage,
- int width, int height, SkIPoint16* loc) {
- // Iterate through the plots currently being used by this client and see if we can find a hole.
- // The last one was most recently added and probably most empty.
- // We want to consolidate the uses from individual clients to the same plot(s) so that
- // when a specific client goes away they are more likely to completely empty a plot.
- for (int i = usage->numPlots()-1; i >= 0; --i) {
- Plot* plot = usage->plot(i);
- if (plot->allocateRect(width, height, loc)) {
- this->makeMRU(plot);
- return plot;
- }
- }
-
- // before we get a new plot, make sure we have a backing texture
- if (nullptr == fTexture) {
- this->createBackingTexture();
- if (nullptr == fTexture) {
- return nullptr;
- }
- }
-
- // Now look through all allocated plots for one we can share, in MRU order
- // TODO: its seems like traversing from emptiest to fullest would make more sense
- PlotList::Iter plotIter;
- plotIter.init(fPlotList, PlotList::Iter::kHead_IterStart);
- Plot* plot;
- while ((plot = plotIter.get())) {
- if (plot->allocateRect(width, height, loc)) {
- this->makeMRU(plot);
- // new plot for atlas, put at end of array
- usage->appendPlot(plot);
- return plot;
- }
- plotIter.next();
- }
-
- // If the above fails, then the current plot list has no room
- return nullptr;
-}
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