// Atlased layers must be small enough to fit in the atlas, not have a
// paint with an image filter and be neither nested nor nesting.
// TODO: allow leaf nested layers to appear in the atlas.
void GrLayerHoister::FindLayersToAtlas(GrContext* context,
const SkPicture* topLevelPicture,
const SkMatrix& initialMat,
const SkRect& query,
SkTDArray<GrHoistedLayer>* atlased,
SkTDArray<GrHoistedLayer>* recycled,
int numSamples) {
if (0 != numSamples) {
// MSAA layers are currently never atlased
return;
}
GrLayerCache* layerCache = context->getLayerCache();
layerCache->processDeletedPictures();
SkPicture::AccelData::Key key = SkLayerInfo::ComputeKey();
const SkPicture::AccelData* topLevelData = topLevelPicture->EXPERIMENTAL_getAccelData(key);
if (!topLevelData) {
return;
}
const SkLayerInfo *topLevelGPUData = static_cast<const SkLayerInfo*>(topLevelData);
if (0 == topLevelGPUData->numBlocks()) {
return;
}
atlased->setReserve(atlased->count() + topLevelGPUData->numBlocks());
for (int i = 0; i < topLevelGPUData->numBlocks(); ++i) {
const SkLayerInfo::BlockInfo& info = topLevelGPUData->block(i);
// TODO: ignore perspective projected layers here?
bool disallowAtlasing = info.fHasNestedLayers || info.fIsNested ||
(info.fPaint && info.fPaint->getImageFilter());
if (disallowAtlasing) {
continue;
}
SkRect layerRect;
initialMat.mapRect(&layerRect, info.fBounds);
if (!layerRect.intersect(query)) {
continue;
}
const SkIRect dstIR = layerRect.roundOut();
SkIRect srcIR;
if (!compute_source_rect(info, initialMat, dstIR, &srcIR)) {
continue;
}
prepare_for_hoisting(layerCache, topLevelPicture, initialMat,
info, srcIR, dstIR, atlased, recycled, true, 0);
}
}
// 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);
}
}
// 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);
}
}
// Atlased layers must be small enough to fit in the atlas, not have a
// paint with an image filter and be neither nested nor nesting.
// TODO: allow leaf nested layers to appear in the atlas.
void GrLayerHoister::FindLayersToAtlas(GrContext* context,
const SkPicture* topLevelPicture,
const SkRect& query,
SkTDArray<GrHoistedLayer>* atlased,
SkTDArray<GrHoistedLayer>* recycled) {
GrLayerCache* layerCache = context->getLayerCache();
layerCache->processDeletedPictures();
SkPicture::AccelData::Key key = GrAccelData::ComputeAccelDataKey();
const SkPicture::AccelData* topLevelData = topLevelPicture->EXPERIMENTAL_getAccelData(key);
if (!topLevelData) {
return;
}
const GrAccelData *topLevelGPUData = static_cast<const GrAccelData*>(topLevelData);
if (0 == topLevelGPUData->numSaveLayers()) {
return;
}
atlased->setReserve(atlased->count() + topLevelGPUData->numSaveLayers());
for (int i = 0; i < topLevelGPUData->numSaveLayers(); ++i) {
const GrAccelData::SaveLayerInfo& info = topLevelGPUData->saveLayerInfo(i);
// TODO: ignore perspective projected layers here?
bool disallowAtlasing = info.fHasNestedLayers || info.fIsNested ||
(info.fPaint && info.fPaint->getImageFilter());
if (disallowAtlasing) {
continue;
}
SkRect layerRect = info.fBounds;
if (!layerRect.intersect(query)) {
continue;
}
SkIRect ir;
layerRect.roundOut(&ir);
if (!GrLayerCache::PlausiblyAtlasable(ir.width(), ir.height())) {
continue;
}
prepare_for_hoisting(layerCache, topLevelPicture, info, ir, atlased, recycled, true);
}
}
void GrLayerHoister::FindLayersToHoist(GrContext* context,
const SkPicture* topLevelPicture,
const SkMatrix& initialMat,
const SkRect& query,
SkTDArray<GrHoistedLayer>* needRendering,
SkTDArray<GrHoistedLayer>* recycled,
int numSamples) {
GrLayerCache* layerCache = context->getLayerCache();
layerCache->processDeletedPictures();
const SkBigPicture::AccelData* topLevelData = nullptr;
if (const SkBigPicture* bp = topLevelPicture->asSkBigPicture()) {
topLevelData = bp->accelData();
}
if (!topLevelData) {
return;
}
const SkLayerInfo *topLevelGPUData = static_cast<const SkLayerInfo*>(topLevelData);
if (0 == topLevelGPUData->numBlocks()) {
return;
}
// Find and prepare for hoisting all the layers that intersect the query rect
for (int i = 0; i < topLevelGPUData->numBlocks(); ++i) {
const SkLayerInfo::BlockInfo& info = topLevelGPUData->block(i);
if (info.fIsNested) {
// Parent layers are currently hoisted while nested layers are not.
continue;
}
SkRect layerRect;
initialMat.mapRect(&layerRect, info.fBounds);
if (!layerRect.intersect(query)) {
continue;
}
const SkIRect dstIR = layerRect.roundOut();
SkIRect srcIR;
if (!compute_source_rect(info, initialMat, dstIR, &srcIR)) {
continue;
}
prepare_for_hoisting(layerCache, topLevelPicture, initialMat, info, srcIR, dstIR,
needRendering, recycled, false, numSamples);
}
}
void GrLayerHoister::FindLayersToHoist(GrContext* context,
const SkPicture* topLevelPicture,
const SkRect& query,
SkTDArray<GrHoistedLayer>* needRendering,
SkTDArray<GrHoistedLayer>* recycled) {
GrLayerCache* layerCache = context->getLayerCache();
layerCache->processDeletedPictures();
SkPicture::AccelData::Key key = GrAccelData::ComputeAccelDataKey();
const SkPicture::AccelData* topLevelData = topLevelPicture->EXPERIMENTAL_getAccelData(key);
if (!topLevelData) {
return;
}
const GrAccelData *topLevelGPUData = static_cast<const GrAccelData*>(topLevelData);
if (0 == topLevelGPUData->numSaveLayers()) {
return;
}
// Find and prepare for hoisting all the layers that intersect the query rect
for (int i = 0; i < topLevelGPUData->numSaveLayers(); ++i) {
const GrAccelData::SaveLayerInfo& info = topLevelGPUData->saveLayerInfo(i);
if (info.fIsNested) {
// Parent layers are currently hoisted while nested layers are not.
continue;
}
SkRect layerRect = info.fBounds;
if (!layerRect.intersect(query)) {
continue;
}
SkIRect ir;
layerRect.roundOut(&ir);
prepare_for_hoisting(layerCache, topLevelPicture, info, ir,
needRendering, recycled, false);
}
}
void GrLayerHoister::UnlockLayers(GrContext* context,
const SkTDArray<GrHoistedLayer>& atlased,
const SkTDArray<GrHoistedLayer>& nonAtlased,
const SkTDArray<GrHoistedLayer>& recycled) {
GrLayerCache* layerCache = context->getLayerCache();
for (int i = 0; i < atlased.count(); ++i) {
layerCache->removeUse(atlased[i].fLayer);
}
for (int i = 0; i < nonAtlased.count(); ++i) {
layerCache->removeUse(nonAtlased[i].fLayer);
}
for (int i = 0; i < recycled.count(); ++i) {
layerCache->removeUse(recycled[i].fLayer);
}
#if DISABLE_CACHING
// This code completely clears out the atlas. It is required when
// caching is disabled so the atlas doesn't fill up and force more
// free floating layers
layerCache->purgeAll();
#endif
SkDEBUGCODE(layerCache->validate();)
}
// Return true if any layers are suitable for hoisting
bool GrLayerHoister::FindLayersToHoist(GrContext* context,
const SkPicture* topLevelPicture,
const SkRect& query,
SkTDArray<GrHoistedLayer>* atlased,
SkTDArray<GrHoistedLayer>* nonAtlased,
SkTDArray<GrHoistedLayer>* recycled) {
GrLayerCache* layerCache = context->getLayerCache();
layerCache->processDeletedPictures();
SkPicture::AccelData::Key key = GrAccelData::ComputeAccelDataKey();
const SkPicture::AccelData* topLevelData = topLevelPicture->EXPERIMENTAL_getAccelData(key);
if (!topLevelData) {
return false;
}
const GrAccelData *topLevelGPUData = static_cast<const GrAccelData*>(topLevelData);
if (0 == topLevelGPUData->numSaveLayers()) {
return false;
}
bool anyHoisted = false;
// The layer hoisting code will pre-render and cache an entire layer if most
// of it is being used (~70%) and it will fit in a texture. This is to allow
// such layers to be re-used for different clips/tiles.
// Small layers will additionally be atlased.
// The only limitation right now is that nested layers are currently not hoisted.
// Parent layers are hoisted but are never atlased (so that we never swap
// away from the atlas rendertarget when generating the hoisted layers).
atlased->setReserve(atlased->count() + topLevelGPUData->numSaveLayers());
// Find and prepare for hoisting all the layers that intersect the query rect
for (int i = 0; i < topLevelGPUData->numSaveLayers(); ++i) {
const GrAccelData::SaveLayerInfo& info = topLevelGPUData->saveLayerInfo(i);
SkRect layerRect = SkRect::Make(info.fBounds);
if (!layerRect.intersect(query)) {
continue;
}
SkIRect ir;
layerRect.roundOut(&ir);
// TODO: ignore perspective projected layers here!
// TODO: once this code is more stable unsuitable layers can
// just be omitted during the optimization stage
if (info.fIsNested) {
continue;
}
prepare_for_hoisting(layerCache, topLevelPicture, info, ir, atlased, nonAtlased, recycled);
anyHoisted = true;
}
return anyHoisted;
}
