static void convert_layers_to_replacements(const SkTDArray<GrHoistedLayer>& layers,
GrReplacements* replacements) {
// TODO: just replace GrReplacements::ReplacementInfo with GrCachedLayer?
for (int i = 0; i < layers.count(); ++i) {
GrCachedLayer* layer = layers[i].fLayer;
const SkPicture* picture = layers[i].fPicture;
GrReplacements::ReplacementInfo* layerInfo =
replacements->newReplacement(picture->uniqueID(),
layer->start(),
layers[i].fCTM);
layerInfo->fStop = layer->stop();
layerInfo->fPos = layers[i].fOffset;
SkBitmap bm;
wrap_texture(layers[i].fLayer->texture(),
!layers[i].fLayer->isAtlased() ? layers[i].fLayer->rect().width()
: layers[i].fLayer->texture()->width(),
!layers[i].fLayer->isAtlased() ? layers[i].fLayer->rect().height()
: layers[i].fLayer->texture()->height(),
&bm);
layerInfo->fImage = SkImage::NewTexture(bm);
layerInfo->fPaint = layers[i].fLayer->paint()
? SkNEW_ARGS(SkPaint, (*layers[i].fLayer->paint()))
: NULL;
layerInfo->fSrcRect = SkIRect::MakeXYWH(layers[i].fLayer->rect().fLeft,
layers[i].fLayer->rect().fTop,
layers[i].fLayer->rect().width(),
layers[i].fLayer->rect().height());
}
}
static bool LessThan(const GrCachedLayer& layer, const PictureLayerKey& key) {
if (layer.pictureID() == key.pictureID()) {
return layer.layerID() < key.layerID();
}
return layer.pictureID() < key.pictureID();
}
GrCachedLayer* GrLayerCache::createLayer(const SkPicture* picture, int layerID) {
GrCachedLayer* layer = fLayerPool.alloc();
SkASSERT(picture->uniqueID() != SK_InvalidGenID);
layer->init(picture->uniqueID(), layerID);
fLayerHash.insert(PictureLayerKey(picture->uniqueID(), layerID), layer);
return layer;
}
// Create the layer information for the hoisted layer and secure the
// required texture/render target resources.
static void prepare_for_hoisting(GrLayerCache* layerCache,
const SkPicture* topLevelPicture,
const GrAccelData::SaveLayerInfo& info,
const SkIRect& layerRect,
SkTDArray<GrHoistedLayer>* needRendering,
SkTDArray<GrHoistedLayer>* recycled,
bool attemptToAtlas) {
const SkPicture* pict = info.fPicture ? info.fPicture : topLevelPicture;
SkMatrix combined = SkMatrix::Concat(info.fPreMat, info.fLocalMat);
GrCachedLayer* layer = layerCache->findLayerOrCreate(pict->uniqueID(),
info.fSaveLayerOpID,
info.fRestoreOpID,
layerRect,
combined,
info.fPaint);
GrSurfaceDesc desc;
desc.fFlags = kRenderTarget_GrSurfaceFlag;
desc.fWidth = layerRect.width();
desc.fHeight = layerRect.height();
desc.fConfig = kSkia8888_GrPixelConfig;
// TODO: need to deal with sample count
bool locked, needsRendering;
if (attemptToAtlas) {
locked = layerCache->tryToAtlas(layer, desc, &needsRendering);
} else {
locked = layerCache->lock(layer, desc, &needsRendering);
}
if (!locked) {
// GPU resources could not be secured for the hoisting of this layer
return;
}
if (attemptToAtlas) {
SkASSERT(layer->isAtlased());
}
GrHoistedLayer* hl;
if (needsRendering) {
if (!attemptToAtlas) {
SkASSERT(!layer->isAtlased());
}
hl = needRendering->append();
} else {
hl = recycled->append();
}
layerCache->addUse(layer);
hl->fLayer = layer;
hl->fPicture = pict;
hl->fOffset = SkIPoint::Make(layerRect.fLeft, layerRect.fTop);
hl->fLocalMat = info.fLocalMat;
hl->fPreMat = info.fPreMat;
}
// Test out the layer replacement functionality with and w/o a BBH
void test_replacements(skiatest::Reporter* r, GrContext* context, bool doReplace) {
sk_sp<SkPicture> pic;
{
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(SkIntToScalar(kWidth), SkIntToScalar(kHeight));
SkPaint paint;
canvas->saveLayer(nullptr, &paint);
canvas->clear(SK_ColorRED);
canvas->restore();
canvas->drawRect(SkRect::MakeWH(SkIntToScalar(kWidth / 2), SkIntToScalar(kHeight / 2)),
SkPaint());
pic = recorder.finishRecordingAsPicture();
}
SkAutoTUnref<GrTexture> texture;
SkPaint paint;
GrLayerCache* layerCache = context->getLayerCache();
if (doReplace) {
int key[1] = { 0 };
GrCachedLayer* layer = layerCache->findLayerOrCreate(pic->uniqueID(), 0, 2,
SkIRect::MakeWH(kWidth, kHeight),
SkIRect::MakeWH(kWidth, kHeight),
SkMatrix::I(), key, 1, &paint);
GrSurfaceDesc desc;
desc.fConfig = kSkia8888_GrPixelConfig;
desc.fFlags = kRenderTarget_GrSurfaceFlag;
desc.fWidth = kWidth;
desc.fHeight = kHeight;
desc.fSampleCnt = 0;
// Giving the texture some initial data so the Gpu (specifically vulkan) does not complain
// when reading from an uninitialized texture.
SkAutoTMalloc<uint32_t> srcBuffer(kWidth*kHeight);
memset(srcBuffer.get(), 0, kWidth*kHeight*sizeof(uint32_t));
texture.reset(context->textureProvider()->createTexture(
desc, SkBudgeted::kNo, srcBuffer.get(), 0));
layer->setTexture(texture, SkIRect::MakeWH(kWidth, kHeight), false);
}
SkRecord rerecord;
SkRecorder canvas(&rerecord, kWidth, kHeight);
GrRecordReplaceDraw(pic.get(), &canvas, layerCache, SkMatrix::I(), nullptr/*callback*/);
int numLayers = count_instances_of_type<SkRecords::SaveLayer>(rerecord);
if (doReplace) {
REPORTER_ASSERT(r, 0 == numLayers);
} else {
REPORTER_ASSERT(r, 1 == numLayers);
}
}
// Create the layer information for the hoisted layer and secure the
// required texture/render target resources.
static void prepare_for_hoisting(GrLayerCache* layerCache,
const SkPicture* topLevelPicture,
const GrAccelData::SaveLayerInfo& info,
const SkIRect& layerRect,
SkTDArray<GrHoistedLayer>* atlased,
SkTDArray<GrHoistedLayer>* nonAtlased,
SkTDArray<GrHoistedLayer>* recycled) {
const SkPicture* pict = info.fPicture ? info.fPicture : topLevelPicture;
GrCachedLayer* layer = layerCache->findLayerOrCreate(pict->uniqueID(),
info.fSaveLayerOpID,
info.fRestoreOpID,
layerRect,
info.fOriginXform,
info.fPaint);
GrTextureDesc desc;
desc.fFlags = kRenderTarget_GrTextureFlagBit;
desc.fWidth = layerRect.width();
desc.fHeight = layerRect.height();
desc.fConfig = kSkia8888_GrPixelConfig;
// TODO: need to deal with sample count
bool disallowAtlasing = info.fHasNestedLayers || info.fIsNested ||
(layer->paint() && layer->paint()->getImageFilter());
bool needsRendering = layerCache->lock(layer, desc, disallowAtlasing);
if (NULL == layer->texture()) {
// GPU resources could not be secured for the hoisting of this layer
return;
}
GrHoistedLayer* hl;
if (needsRendering) {
if (layer->isAtlased()) {
hl = atlased->append();
} else {
hl = nonAtlased->append();
}
} else {
hl = recycled->append();
}
layerCache->addUse(layer);
hl->fLayer = layer;
hl->fPicture = pict;
hl->fOffset = SkIPoint::Make(layerRect.fLeft, layerRect.fTop);
hl->fCTM = info.fOriginXform;
}
// Test out the layer replacement functionality with and w/o a BBH
void test_replacements(skiatest::Reporter* r, GrContext* context, bool doReplace) {
SkAutoTUnref<const SkPicture> pic;
{
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(SkIntToScalar(kWidth), SkIntToScalar(kHeight));
SkPaint paint;
canvas->saveLayer(nullptr, &paint);
canvas->clear(SK_ColorRED);
canvas->restore();
canvas->drawRect(SkRect::MakeWH(SkIntToScalar(kWidth / 2), SkIntToScalar(kHeight / 2)),
SkPaint());
pic.reset(recorder.endRecording());
}
SkAutoTUnref<GrTexture> texture;
SkPaint paint;
GrLayerCache* layerCache = context->getLayerCache();
if (doReplace) {
int key[1] = { 0 };
GrCachedLayer* layer = layerCache->findLayerOrCreate(pic->uniqueID(), 0, 2,
SkIRect::MakeWH(kWidth, kHeight),
SkIRect::MakeWH(kWidth, kHeight),
SkMatrix::I(), key, 1, &paint);
GrSurfaceDesc desc;
desc.fConfig = kSkia8888_GrPixelConfig;
desc.fFlags = kRenderTarget_GrSurfaceFlag;
desc.fWidth = kWidth;
desc.fHeight = kHeight;
desc.fSampleCnt = 0;
texture.reset(context->textureProvider()->createTexture(
desc, SkBudgeted::kNo, nullptr, 0));
layer->setTexture(texture, SkIRect::MakeWH(kWidth, kHeight), false);
}
SkRecord rerecord;
SkRecorder canvas(&rerecord, kWidth, kHeight);
GrRecordReplaceDraw(pic, &canvas, layerCache, SkMatrix::I(), nullptr/*callback*/);
int numLayers = count_instances_of_type<SkRecords::SaveLayer>(rerecord);
if (doReplace) {
REPORTER_ASSERT(r, 0 == numLayers);
} else {
REPORTER_ASSERT(r, 1 == numLayers);
}
}
GrLayerCache::~GrLayerCache() {
SkTDynamicHash<GrCachedLayer, GrCachedLayer::Key>::Iter iter(&fLayerHash);
for (; !iter.done(); ++iter) {
GrCachedLayer* layer = &(*iter);
SkASSERT(0 == layer->uses());
this->unlock(layer);
SkDELETE(layer);
}
SkASSERT(0 == fPictureHash.count());
// The atlas only lets go of its texture when the atlas is deleted.
fAtlas.free();
}
// Add several layers to the cache
static void create_layers(skiatest::Reporter* reporter,
GrLayerCache* cache,
const SkPicture& picture,
int numToAdd,
int idOffset) {
for (int i = 0; i < numToAdd; ++i) {
GrCachedLayer* layer = cache->findLayerOrCreate(&picture,
idOffset+i+1, idOffset+i+2,
SkMatrix::I());
REPORTER_ASSERT(reporter, NULL != layer);
GrCachedLayer* temp = cache->findLayer(&picture, idOffset+i+1, idOffset+i+2, SkMatrix::I());
REPORTER_ASSERT(reporter, temp == layer);
REPORTER_ASSERT(reporter, TestingAccess::NumLayers(cache) == idOffset + i + 1);
REPORTER_ASSERT(reporter, picture.uniqueID() == layer->pictureID());
REPORTER_ASSERT(reporter, layer->start() == idOffset + i + 1);
REPORTER_ASSERT(reporter, layer->stop() == idOffset + i + 2);
REPORTER_ASSERT(reporter, layer->ctm() == SkMatrix::I());
REPORTER_ASSERT(reporter, NULL == layer->texture());
REPORTER_ASSERT(reporter, !layer->isAtlased());
}
cache->trackPicture(&picture);
}
// Add several layers to the cache
static void create_layers(skiatest::Reporter* reporter,
GrLayerCache* cache,
const SkPicture& picture,
unsigned numToAdd,
unsigned idOffset) {
for (unsigned i = 0; i < numToAdd; ++i) {
unsigned indices[1] = { idOffset+i+1 };
GrCachedLayer* layer = cache->findLayerOrCreate(picture.uniqueID(),
idOffset+i+1, idOffset+i+2,
SkIRect::MakeEmpty(),
SkIRect::MakeEmpty(),
SkMatrix::I(),
indices, 1,
NULL);
REPORTER_ASSERT(reporter, layer);
GrCachedLayer* temp = TestingAccess::Find(cache, picture.uniqueID(), SkMatrix::I(),
indices, 1);
REPORTER_ASSERT(reporter, temp == layer);
REPORTER_ASSERT(reporter, TestingAccess::NumLayers(cache) == idOffset + i + 1);
REPORTER_ASSERT(reporter, picture.uniqueID() == layer->pictureID());
REPORTER_ASSERT(reporter, layer->start() == idOffset + i + 1);
REPORTER_ASSERT(reporter, layer->stop() == idOffset + i + 2);
REPORTER_ASSERT(reporter, NULL == layer->texture());
REPORTER_ASSERT(reporter, NULL == layer->paint());
REPORTER_ASSERT(reporter, !layer->isAtlased());
}
}
void operator()(const SkRecords::SaveLayer& sl) {
// For a saveLayer command, check if it can be replaced by a drawBitmap
// call and, if so, draw it and then update the current op index accordingly.
int startOffset;
if (fOps.count()) {
startOffset = fOps[fIndex];
} else {
startOffset = fIndex;
}
fOpIndexStack.push(startOffset);
GrCachedLayer* layer = fLayerCache->findLayer(fTopLevelPicture->uniqueID(),
fInitialMatrix,
fOpIndexStack.begin(),
fOpIndexStack.count());
if (layer) {
fNumReplaced++;
draw_replacement_bitmap(layer, fCanvas);
if (fPicture->bbh()) {
while (fOps[fIndex] < layer->stop()) {
++fIndex;
}
SkASSERT(fOps[fIndex] == layer->stop());
} else {
fIndex = layer->stop();
}
fOpIndexStack.pop();
return;
}
// This is a fail for layer hoisting
this->INHERITED::operator()(sl);
fOpIndexStack.pop();
}
// Create the layer information for the hoisted layer and secure the
// required texture/render target resources.
static void prepare_for_hoisting(GrLayerCache* layerCache,
const SkPicture* topLevelPicture,
const SkMatrix& initialMat,
const SkLayerInfo::BlockInfo& info,
const SkIRect& srcIR,
const SkIRect& dstIR,
SkTDArray<GrHoistedLayer>* needRendering,
SkTDArray<GrHoistedLayer>* recycled,
bool attemptToAtlas,
int numSamples) {
const SkPicture* pict = info.fPicture ? info.fPicture : topLevelPicture;
GrCachedLayer* layer = layerCache->findLayerOrCreate(topLevelPicture->uniqueID(),
SkToInt(info.fSaveLayerOpID),
SkToInt(info.fRestoreOpID),
srcIR,
dstIR,
initialMat,
info.fKey,
info.fKeySize,
info.fPaint);
GrSurfaceDesc desc;
desc.fFlags = kRenderTarget_GrSurfaceFlag;
desc.fWidth = srcIR.width();
desc.fHeight = srcIR.height();
desc.fConfig = kSkia8888_GrPixelConfig;
desc.fSampleCnt = numSamples;
bool locked, needsRendering;
if (attemptToAtlas) {
locked = layerCache->tryToAtlas(layer, desc, &needsRendering);
} else {
locked = layerCache->lock(layer, desc, &needsRendering);
}
if (!locked) {
// GPU resources could not be secured for the hoisting of this layer
return;
}
if (attemptToAtlas) {
SkASSERT(layer->isAtlased());
}
GrHoistedLayer* hl;
if (needsRendering) {
if (!attemptToAtlas) {
SkASSERT(!layer->isAtlased());
}
hl = needRendering->append();
} else {
hl = recycled->append();
}
layerCache->addUse(layer);
hl->fLayer = layer;
hl->fPicture = pict;
hl->fLocalMat = info.fLocalMat;
hl->fInitialMat = initialMat;
hl->fPreMat = initialMat;
hl->fPreMat.preConcat(info.fPreMat);
}
// This test case exercises the public API of the GrLayerCache class.
// In particular it checks its interaction with the resource cache (w.r.t.
// locking & unlocking textures).
// TODO: need to add checks on VRAM usage!
DEF_GPUTEST(GpuLayerCache, reporter, factory) {
static const int kInitialNumLayers = 5;
for (int i= 0; i < GrContextFactory::kGLContextTypeCnt; ++i) {
GrContextFactory::GLContextType glCtxType = (GrContextFactory::GLContextType) i;
if (!GrContextFactory::IsRenderingGLContext(glCtxType)) {
continue;
}
GrContext* context = factory->get(glCtxType);
if (NULL == context) {
continue;
}
SkPictureRecorder recorder;
recorder.beginRecording(1, 1);
SkAutoTUnref<const SkPicture> picture(recorder.endRecording());
GrLayerCache cache(context);
create_layers(reporter, &cache, *picture, kInitialNumLayers, 0);
for (int i = 0; i < kInitialNumLayers; ++i) {
GrCachedLayer* layer = cache.findLayer(picture, i+1, i+2, SkMatrix::I());
REPORTER_ASSERT(reporter, NULL != layer);
lock_layer(reporter, &cache, layer);
// The first 4 layers should be in the atlas (and thus have non-empty
// rects)
if (i < 4) {
REPORTER_ASSERT(reporter, layer->isAtlased());
} else {
// The 5th layer couldn't fit in the atlas
REPORTER_ASSERT(reporter, !layer->isAtlased());
}
}
// Unlock the textures
for (int i = 0; i < kInitialNumLayers; ++i) {
GrCachedLayer* layer = cache.findLayer(picture, i+1, i+2, SkMatrix::I());
REPORTER_ASSERT(reporter, NULL != layer);
cache.unlock(layer);
}
for (int i = 0; i < kInitialNumLayers; ++i) {
GrCachedLayer* layer = cache.findLayer(picture, i+1, i+2, SkMatrix::I());
REPORTER_ASSERT(reporter, NULL != layer);
REPORTER_ASSERT(reporter, !layer->locked());
// The first 4 layers should still be in the atlas.
if (i < 4) {
REPORTER_ASSERT(reporter, NULL != layer->texture());
REPORTER_ASSERT(reporter, layer->isAtlased());
} else {
// The final layer should be unlocked.
REPORTER_ASSERT(reporter, NULL == layer->texture());
REPORTER_ASSERT(reporter, !layer->isAtlased());
}
}
{
// Add an additional layer. Since all the layers are unlocked this
// will force out the first atlased layer
create_layers(reporter, &cache, *picture, 1, kInitialNumLayers);
GrCachedLayer* layer = cache.findLayer(picture,
kInitialNumLayers+1, kInitialNumLayers+2,
SkMatrix::I());
REPORTER_ASSERT(reporter, NULL != layer);
lock_layer(reporter, &cache, layer);
cache.unlock(layer);
}
for (int i = 0; i < kInitialNumLayers+1; ++i) {
GrCachedLayer* layer = cache.findLayer(picture, i+1, i+2, SkMatrix::I());
// 3 old layers plus the new one should be in the atlas.
if (1 == i || 2 == i || 3 == i || 5 == i) {
REPORTER_ASSERT(reporter, NULL != layer);
REPORTER_ASSERT(reporter, !layer->locked());
REPORTER_ASSERT(reporter, NULL != layer->texture());
REPORTER_ASSERT(reporter, layer->isAtlased());
} else if (4 == i) {
// The one that was never atlased should still be around
REPORTER_ASSERT(reporter, NULL != layer);
REPORTER_ASSERT(reporter, NULL == layer->texture());
REPORTER_ASSERT(reporter, !layer->isAtlased());
} else {
// The one bumped out of the atlas (i.e., 0) should be gone
REPORTER_ASSERT(reporter, NULL == layer);
}
}
//--------------------------------------------------------------------
// Free them all SkGpuDevice-style. This will not free up the
// atlas' texture but will eliminate all the layers.
TestingAccess::Purge(&cache, picture->uniqueID());
REPORTER_ASSERT(reporter, TestingAccess::NumLayers(&cache) == 0);
// TODO: add VRAM/resource cache check here
//--------------------------------------------------------------------
// Test out the GrContext-style purge. This should remove all the layers
// and the atlas.
// Re-create the layers
create_layers(reporter, &cache, *picture, kInitialNumLayers, 0);
// Free them again GrContext-style. This should free up everything.
cache.freeAll();
REPORTER_ASSERT(reporter, TestingAccess::NumLayers(&cache) == 0);
// TODO: add VRAM/resource cache check here
//--------------------------------------------------------------------
// Test out the MessageBus-style purge. This will not free the atlas
// but should eliminate the free-floating layers.
create_layers(reporter, &cache, *picture, kInitialNumLayers, 0);
picture.reset(NULL);
cache.processDeletedPictures();
REPORTER_ASSERT(reporter, TestingAccess::NumLayers(&cache) == 0);
// TODO: add VRAM/resource cache check here
}
}
// This test case exercises the public API of the GrLayerCache class.
// In particular it checks its interaction with the resource cache (w.r.t.
// locking & unlocking textures).
// TODO: need to add checks on VRAM usage!
DEF_GPUTEST(GpuLayerCache, reporter, factory) {
GrContext* context = factory->get(GrContextFactory::kNative_GLContextType);
if (NULL == context) {
return;
}
SkPicture picture;
GrLayerCache cache(context);
create_layers(reporter, &cache, picture);
// Lock the layers making them all 512x512
GrTextureDesc desc;
desc.fWidth = 512;
desc.fHeight = 512;
desc.fConfig = kSkia8888_GrPixelConfig;
for (int i = 0; i < kNumLayers; ++i) {
GrCachedLayer* layer = cache.findLayer(&picture, i);
REPORTER_ASSERT(reporter, NULL != layer);
bool foundInCache = cache.lock(layer, desc);
REPORTER_ASSERT(reporter, !foundInCache);
foundInCache = cache.lock(layer, desc);
REPORTER_ASSERT(reporter, foundInCache);
REPORTER_ASSERT(reporter, NULL != layer->texture());
#if USE_ATLAS
// The first 4 layers should be in the atlas (and thus have non-empty
// rects)
if (i < 4) {
REPORTER_ASSERT(reporter, !layer->rect().isEmpty());
} else {
#endif
REPORTER_ASSERT(reporter, layer->rect().isEmpty());
#if USE_ATLAS
}
#endif
}
// Unlock the textures
for (int i = 0; i < kNumLayers; ++i) {
GrCachedLayer* layer = cache.findLayer(&picture, i);
REPORTER_ASSERT(reporter, NULL != layer);
cache.unlock(layer);
}
for (int i = 0; i < kNumLayers; ++i) {
GrCachedLayer* layer = cache.findLayer(&picture, i);
REPORTER_ASSERT(reporter, NULL != layer);
#if USE_ATLAS
// The first 4 layers should be in the atlas (and thus do not
// currently unlock). The final layer should be unlocked.
if (i < 4) {
REPORTER_ASSERT(reporter, NULL != layer->texture());
REPORTER_ASSERT(reporter, !layer->rect().isEmpty());
} else {
#endif
REPORTER_ASSERT(reporter, NULL == layer->texture());
REPORTER_ASSERT(reporter, layer->rect().isEmpty());
#if USE_ATLAS
}
#endif
}
// Free them all SkGpuDevice-style. This will not free up the
// atlas' texture but will eliminate all the layers.
cache.purge(&picture);
REPORTER_ASSERT(reporter, GetNumLayers::NumLayers(&cache) == 0);
// TODO: add VRAM/resource cache check here
#if 0
// Re-create the layers
create_layers(reporter, &cache, picture);
// Free them again GrContext-style. This should free up everything.
cache.freeAll();
REPORTER_ASSERT(reporter, GetNumLayers::NumLayers(&cache) == 0);
// TODO: add VRAM/resource cache check here
#endif
}
void GrLayerHoister::DrawLayers(const SkTDArray<GrHoistedLayer>& atlased,
const SkTDArray<GrHoistedLayer>& nonAtlased,
const SkTDArray<GrHoistedLayer>& recycled,
GrReplacements* replacements) {
// Render the atlased layers that require it
if (atlased.count() > 0) {
// All the atlased layers are rendered into the same GrTexture
SkAutoTUnref<SkSurface> surface(SkSurface::NewRenderTargetDirect(
atlased[0].fLayer->texture()->asRenderTarget(), NULL));
SkCanvas* atlasCanvas = surface->getCanvas();
SkPaint paint;
paint.setColor(SK_ColorTRANSPARENT);
paint.setXfermode(SkXfermode::Create(SkXfermode::kSrc_Mode))->unref();
for (int i = 0; i < atlased.count(); ++i) {
GrCachedLayer* layer = atlased[i].fLayer;
const SkPicture* pict = atlased[i].fPicture;
const SkIPoint offset = atlased[i].fOffset;
atlasCanvas->save();
// Add a rect clip to make sure the rendering doesn't
// extend beyond the boundaries of the atlased sub-rect
SkRect bound = SkRect::MakeXYWH(SkIntToScalar(layer->rect().fLeft),
SkIntToScalar(layer->rect().fTop),
SkIntToScalar(layer->rect().width()),
SkIntToScalar(layer->rect().height()));
atlasCanvas->clipRect(bound);
// Since 'clear' doesn't respect the clip we need to draw a rect
// TODO: ensure none of the atlased layers contain a clear call!
atlasCanvas->drawRect(bound, paint);
// info.fCTM maps the layer's top/left to the origin.
// Since this layer is atlased, the top/left corner needs
// to be offset to the correct location in the backing texture.
SkMatrix initialCTM;
initialCTM.setTranslate(SkIntToScalar(-offset.fX),
SkIntToScalar(-offset.fY));
initialCTM.postTranslate(bound.fLeft, bound.fTop);
atlasCanvas->translate(SkIntToScalar(-offset.fX),
SkIntToScalar(-offset.fY));
atlasCanvas->translate(bound.fLeft, bound.fTop);
atlasCanvas->concat(atlased[i].fCTM);
SkRecordPartialDraw(*pict->fRecord.get(), atlasCanvas, bound,
layer->start()+1, layer->stop(), initialCTM);
atlasCanvas->restore();
}
atlasCanvas->flush();
}
// Render the non-atlased layers that require it
for (int i = 0; i < nonAtlased.count(); ++i) {
GrCachedLayer* layer = nonAtlased[i].fLayer;
const SkPicture* pict = nonAtlased[i].fPicture;
const SkIPoint offset = nonAtlased[i].fOffset;
// Each non-atlased layer has its own GrTexture
SkAutoTUnref<SkSurface> surface(SkSurface::NewRenderTargetDirect(
layer->texture()->asRenderTarget(), NULL));
SkCanvas* layerCanvas = surface->getCanvas();
// Add a rect clip to make sure the rendering doesn't
// extend beyond the boundaries of the atlased sub-rect
SkRect bound = SkRect::MakeXYWH(SkIntToScalar(layer->rect().fLeft),
SkIntToScalar(layer->rect().fTop),
SkIntToScalar(layer->rect().width()),
SkIntToScalar(layer->rect().height()));
layerCanvas->clipRect(bound); // TODO: still useful?
layerCanvas->clear(SK_ColorTRANSPARENT);
SkMatrix initialCTM;
initialCTM.setTranslate(SkIntToScalar(-offset.fX),
SkIntToScalar(-offset.fY));
layerCanvas->translate(SkIntToScalar(-offset.fX),
SkIntToScalar(-offset.fY));
layerCanvas->concat(nonAtlased[i].fCTM);
SkRecordPartialDraw(*pict->fRecord.get(), layerCanvas, bound,
layer->start()+1, layer->stop(), initialCTM);
layerCanvas->flush();
}
convert_layers_to_replacements(atlased, replacements);
convert_layers_to_replacements(nonAtlased, replacements);
convert_layers_to_replacements(recycled, replacements);
}
static bool Equals(const GrCachedLayer& layer, const PictureLayerKey& key) {
return layer.pictureID() == key.pictureID() && layer.layerID() == key.layerID();
}
// This test case exercises the public API of the GrLayerCache class.
// In particular it checks its interaction with the resource cache (w.r.t.
// locking & unlocking textures).
// TODO: need to add checks on VRAM usage!
DEF_GPUTEST(GpuLayerCache, reporter, factory) {
static const unsigned kInitialNumLayers = 5;
for (int i= 0; i < GrContextFactory::kGLContextTypeCnt; ++i) {
GrContextFactory::GLContextType glCtxType = (GrContextFactory::GLContextType) i;
if (!GrContextFactory::IsRenderingGLContext(glCtxType)) {
continue;
}
GrContext* context = factory->get(glCtxType);
if (NULL == context) {
continue;
}
SkPictureRecorder recorder;
SkCanvas* c = recorder.beginRecording(1, 1);
// Draw something, anything, to prevent an empty-picture optimization,
// which is a singleton and never purged.
c->drawRect(SkRect::MakeWH(1,1), SkPaint());
SkAutoTUnref<const SkPicture> picture(recorder.endRecording());
GrLayerCache cache(context);
create_layers(reporter, &cache, *picture, kInitialNumLayers, 0);
for (unsigned i = 0; i < kInitialNumLayers; ++i) {
unsigned indices[1] = { i + 1 };
GrCachedLayer* layer = TestingAccess::Find(&cache, picture->uniqueID(), SkMatrix::I(),
indices, 1);
REPORTER_ASSERT(reporter, layer);
lock_layer(reporter, &cache, layer);
// The first 4 layers should be in the atlas (and thus have non-empty
// rects)
if (i < 4) {
REPORTER_ASSERT(reporter, layer->isAtlased());
} else {
// The 5th layer couldn't fit in the atlas
REPORTER_ASSERT(reporter, !layer->isAtlased());
}
}
// Unlock the textures
for (unsigned i = 0; i < kInitialNumLayers; ++i) {
unsigned indices[1] = { i+1 };
GrCachedLayer* layer = TestingAccess::Find(&cache, picture->uniqueID(), SkMatrix::I(),
indices, 1);
REPORTER_ASSERT(reporter, layer);
cache.removeUse(layer);
}
for (unsigned i = 0; i < kInitialNumLayers; ++i) {
unsigned indices[1] = { i+1 };
GrCachedLayer* layer = TestingAccess::Find(&cache, picture->uniqueID(), SkMatrix::I(),
indices, 1);
REPORTER_ASSERT(reporter, layer);
// All the layers should be unlocked
REPORTER_ASSERT(reporter, !layer->locked());
// When hoisted layers aren't cached they are aggressively removed
// from the atlas
#if GR_CACHE_HOISTED_LAYERS
// The first 4 layers should still be in the atlas.
if (i < 4) {
REPORTER_ASSERT(reporter, layer->texture());
REPORTER_ASSERT(reporter, layer->isAtlased());
} else {
#endif
// The final layer should not be atlased.
REPORTER_ASSERT(reporter, NULL == layer->texture());
REPORTER_ASSERT(reporter, !layer->isAtlased());
#if GR_CACHE_HOISTED_LAYERS
}
#endif
}
{
unsigned indices[1] = { kInitialNumLayers+1 };
// Add an additional layer. Since all the layers are unlocked this
// will force out the first atlased layer
create_layers(reporter, &cache, *picture, 1, kInitialNumLayers);
GrCachedLayer* layer = TestingAccess::Find(&cache, picture->uniqueID(), SkMatrix::I(),
indices, 1);
REPORTER_ASSERT(reporter, layer);
lock_layer(reporter, &cache, layer);
cache.removeUse(layer);
}
for (unsigned i = 0; i < kInitialNumLayers+1; ++i) {
unsigned indices[1] = { i+1 };
GrCachedLayer* layer = TestingAccess::Find(&cache, picture->uniqueID(), SkMatrix::I(),
indices, 1);
#if GR_CACHE_HOISTED_LAYERS
// 3 old layers plus the new one should be in the atlas.
if (1 == i || 2 == i || 3 == i || 5 == i) {
REPORTER_ASSERT(reporter, layer);
REPORTER_ASSERT(reporter, !layer->locked());
REPORTER_ASSERT(reporter, layer->texture());
REPORTER_ASSERT(reporter, layer->isAtlased());
} else if (4 == i) {
#endif
// The one that was never atlased should still be around
REPORTER_ASSERT(reporter, layer);
REPORTER_ASSERT(reporter, NULL == layer->texture());
REPORTER_ASSERT(reporter, !layer->isAtlased());
#if GR_CACHE_HOISTED_LAYERS
} else {
// The one bumped out of the atlas (i.e., 0) should be gone
REPORTER_ASSERT(reporter, NULL == layer);
}
#endif
}
//--------------------------------------------------------------------
// Free them all SkGpuDevice-style. This will not free up the
// atlas' texture but will eliminate all the layers.
TestingAccess::Purge(&cache, picture->uniqueID());
REPORTER_ASSERT(reporter, TestingAccess::NumLayers(&cache) == 0);
// TODO: add VRAM/resource cache check here
//--------------------------------------------------------------------
// Test out the GrContext-style purge. This should remove all the layers
// and the atlas.
// Re-create the layers
create_layers(reporter, &cache, *picture, kInitialNumLayers, 0);
// Free them again GrContext-style. This should free up everything.
cache.freeAll();
REPORTER_ASSERT(reporter, TestingAccess::NumLayers(&cache) == 0);
// TODO: add VRAM/resource cache check here
//--------------------------------------------------------------------
// Test out the MessageBus-style purge. This will not free the atlas
// but should eliminate the free-floating layers.
create_layers(reporter, &cache, *picture, kInitialNumLayers, 0);
picture.reset(NULL);
cache.processDeletedPictures();
REPORTER_ASSERT(reporter, TestingAccess::NumLayers(&cache) == 0);
// TODO: add VRAM/resource cache check here
}
}
