blob: c825194a2f490887b0e0f147984f3d993757926f [file] [log] [blame]
/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "tools/DDLTileHelper.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkDeferredDisplayListRecorder.h"
#include "include/core/SkPicture.h"
#include "include/core/SkSurface.h"
#include "include/core/SkSurfaceCharacterization.h"
#include "include/gpu/GrDirectContext.h"
#include "src/core/SkDeferredDisplayListPriv.h"
#include "src/core/SkTaskGroup.h"
#include "src/gpu/GrDirectContextPriv.h"
#include "src/image/SkImage_Gpu.h"
#include "tools/DDLPromiseImageHelper.h"
void DDLTileHelper::TileData::init(int id,
GrDirectContext* direct,
const SkSurfaceCharacterization& dstSurfaceCharacterization,
const SkIRect& clip,
const SkIRect& paddingOutsets) {
fID = id;
fClip = clip;
fPaddingOutsets = paddingOutsets;
fPlaybackChar = dstSurfaceCharacterization.createResized(this->paddedRectSize().width(),
this->paddedRectSize().height());
SkASSERT(fPlaybackChar.isValid());
SkDEBUGCODE(const GrCaps* caps = direct->priv().caps());
SkASSERT(caps->isFormatTexturable(fPlaybackChar.backendFormat(),
fPlaybackChar.backendFormat().textureType()));
fCallbackContext.reset(new PromiseImageCallbackContext(direct, fPlaybackChar.backendFormat()));
}
DDLTileHelper::TileData::TileData() {}
DDLTileHelper::TileData::~TileData() {}
void DDLTileHelper::TileData::createDDL(const SkPicture* picture) {
SkASSERT(!fDisplayList && picture);
auto recordingChar = fPlaybackChar.createResized(fClip.width(), fClip.height());
SkASSERT(recordingChar.isValid());
SkDeferredDisplayListRecorder recorder(recordingChar);
// DDL TODO: the DDLRecorder's rContext isn't initialized until getCanvas is called.
// Maybe set it up in the ctor?
SkCanvas* recordingCanvas = recorder.getCanvas();
// We always record the DDL in the (0,0) .. (clipWidth, clipHeight) coordinates
recordingCanvas->clipRect(SkRect::MakeWH(fClip.width(), fClip.height()));
recordingCanvas->translate(-fClip.fLeft, -fClip.fTop);
// Note: in this use case we only render a picture to the deferred canvas
// but, more generally, clients will use arbitrary draw calls.
recordingCanvas->drawPicture(picture);
fDisplayList = recorder.detach();
}
void DDLTileHelper::createComposeDDL() {
SkASSERT(!fComposeDDL);
SkDeferredDisplayListRecorder recorder(fDstCharacterization);
SkCanvas* recordingCanvas = recorder.getCanvas();
for (int i = 0; i < this->numTiles(); ++i) {
TileData* tile = &fTiles[i];
if (!tile->initialized()) {
continue;
}
sk_sp<SkImage> promiseImage = tile->makePromiseImageForDst(
recordingCanvas->recordingContext()->threadSafeProxy());
SkRect dstRect = SkRect::Make(tile->clipRect());
SkIRect srcRect = tile->clipRect();
srcRect.offsetTo(tile->padOffset().x(), tile->padOffset().y());
SkASSERT(promiseImage->bounds().contains(srcRect));
recordingCanvas->drawImageRect(promiseImage.get(), SkRect::Make(srcRect), dstRect,
SkSamplingOptions(), nullptr,
SkCanvas::kStrict_SrcRectConstraint);
}
fComposeDDL = recorder.detach();
SkASSERT(fComposeDDL);
}
void DDLTileHelper::TileData::precompile(GrDirectContext* direct) {
if (!this->initialized()) {
return;
}
SkASSERT(fDisplayList);
SkDeferredDisplayList::ProgramIterator iter(direct, fDisplayList.get());
for (; !iter.done(); iter.next()) {
iter.compile();
}
}
sk_sp<SkSurface> DDLTileHelper::TileData::makeWrappedTileDest(GrRecordingContext* rContext) {
SkASSERT(fCallbackContext && fCallbackContext->promiseImageTexture());
auto promiseImageTexture = fCallbackContext->promiseImageTexture();
if (!promiseImageTexture->backendTexture().isValid()) {
return nullptr;
}
// Here we are, unfortunately, aliasing the backend texture held by the SkPromiseImageTexture.
// Both the tile's destination surface and the promise image used to draw the tile will be
// backed by the same backendTexture - unbeknownst to Ganesh.
return SkSurface::MakeFromBackendTexture(rContext,
promiseImageTexture->backendTexture(),
fPlaybackChar.origin(),
fPlaybackChar.sampleCount(),
fPlaybackChar.colorType(),
fPlaybackChar.refColorSpace(),
&fPlaybackChar.surfaceProps());
}
void DDLTileHelper::TileData::drawSKPDirectly(GrDirectContext* dContext,
const SkPicture* picture) {
SkASSERT(!fDisplayList && !fTileSurface && picture);
fTileSurface = this->makeWrappedTileDest(dContext);
if (fTileSurface) {
SkCanvas* tileCanvas = fTileSurface->getCanvas();
SkASSERT(this->padOffset().isZero() && this->paddedRectSize() == fClip.size());
tileCanvas->clipRect(SkRect::MakeWH(fClip.width(), fClip.height()));
tileCanvas->translate(-fClip.fLeft, -fClip.fTop);
tileCanvas->drawPicture(picture);
// We can't snap an image here bc, since we're using wrapped backend textures for the
// surfaces, that would incur a copy.
}
}
void DDLTileHelper::TileData::draw(GrDirectContext* direct) {
SkASSERT(fDisplayList && !fTileSurface);
fTileSurface = this->makeWrappedTileDest(direct);
if (fTileSurface) {
fTileSurface->draw(fDisplayList, this->padOffset().x(), this->padOffset().y());
// We can't snap an image here bc, since we're using wrapped backend textures for the
// surfaces, that would incur a copy.
}
}
void DDLTileHelper::TileData::reset() {
// TODO: when DDLs are re-renderable we don't need to do this
fDisplayList = nullptr;
fTileSurface = nullptr;
}
sk_sp<SkImage> DDLTileHelper::TileData::makePromiseImageForDst(
sk_sp<GrContextThreadSafeProxy> threadSafeProxy) {
SkASSERT(fCallbackContext);
// The promise image gets a ref on the promise callback context
sk_sp<SkImage> promiseImage =
SkImage::MakePromiseTexture(std::move(threadSafeProxy),
fCallbackContext->backendFormat(),
this->paddedRectSize(),
GrMipmapped::kNo,
GrSurfaceOrigin::kBottomLeft_GrSurfaceOrigin,
fPlaybackChar.colorType(),
kPremul_SkAlphaType,
fPlaybackChar.refColorSpace(),
PromiseImageCallbackContext::PromiseImageFulfillProc,
PromiseImageCallbackContext::PromiseImageReleaseProc,
(void*)this->refCallbackContext().release());
fCallbackContext->wasAddedToImage();
return promiseImage;
}
void DDLTileHelper::TileData::CreateBackendTexture(GrDirectContext* direct, TileData* tile) {
SkASSERT(tile->fCallbackContext && !tile->fCallbackContext->promiseImageTexture());
const SkSurfaceCharacterization& c = tile->fPlaybackChar;
GrBackendTexture beTex = direct->createBackendTexture(c.width(), c.height(), c.colorType(),
GrMipMapped(c.isMipMapped()),
GrRenderable::kYes);
tile->fCallbackContext->setBackendTexture(beTex);
}
void DDLTileHelper::TileData::DeleteBackendTexture(GrDirectContext*, TileData* tile) {
if (!tile->initialized()) {
return;
}
SkASSERT(tile->fCallbackContext);
// TODO: it seems that, on the Linux bots, backend texture creation is failing
// a lot (skbug.com/10142)
SkASSERT(!tile->fCallbackContext->promiseImageTexture() ||
tile->fCallbackContext->promiseImageTexture()->backendTexture().isValid());
tile->fTileSurface = nullptr;
SkASSERT(tile->fCallbackContext->unique());
tile->fCallbackContext.reset();
}
///////////////////////////////////////////////////////////////////////////////////////////////////
DDLTileHelper::DDLTileHelper(GrDirectContext* direct,
const SkSurfaceCharacterization& dstChar,
const SkIRect& viewport,
int numXDivisions, int numYDivisions,
bool addRandomPaddingToDst)
: fNumXDivisions(numXDivisions)
, fNumYDivisions(numYDivisions)
, fTiles(numXDivisions * numYDivisions)
, fDstCharacterization(dstChar) {
SkASSERT(fNumXDivisions > 0 && fNumYDivisions > 0);
int xTileSize = viewport.width()/fNumXDivisions;
int yTileSize = viewport.height()/fNumYDivisions;
SkRandom rand;
// Create the destination tiles
for (int y = 0, yOff = 0; y < fNumYDivisions; ++y, yOff += yTileSize) {
int ySize = (y < fNumYDivisions-1) ? yTileSize : viewport.height()-yOff;
for (int x = 0, xOff = 0; x < fNumXDivisions; ++x, xOff += xTileSize) {
int xSize = (x < fNumXDivisions-1) ? xTileSize : viewport.width()-xOff;
SkIRect clip = SkIRect::MakeXYWH(xOff, yOff, xSize, ySize);
SkASSERT(viewport.contains(clip));
static const uint32_t kMaxPad = 64;
int32_t lPad = addRandomPaddingToDst ? rand.nextRangeU(0, kMaxPad) : 0;
int32_t tPad = addRandomPaddingToDst ? rand.nextRangeU(0, kMaxPad) : 0;
int32_t rPad = addRandomPaddingToDst ? rand.nextRangeU(0, kMaxPad) : 0;
int32_t bPad = addRandomPaddingToDst ? rand.nextRangeU(0, kMaxPad) : 0;
fTiles[y*fNumXDivisions+x].init(y*fNumXDivisions+x, direct, dstChar, clip,
{lPad, tPad, rPad, bPad});
}
}
}
void DDLTileHelper::createDDLsInParallel(SkPicture* picture) {
#if 1
SkTaskGroup().batch(this->numTiles(), [&](int i) {
fTiles[i].createDDL(picture);
});
SkTaskGroup().add([this]{ this->createComposeDDL(); });
SkTaskGroup().wait();
#else
// Use this code path to debug w/o threads
for (int i = 0; i < this->numTiles(); ++i) {
fTiles[i].createDDL(picture);
}
this->createComposeDDL();
#endif
}
// On the gpu thread:
// precompile any programs
// replay the DDL into a surface to make the tile image
// compose the tile image into the main canvas
static void do_gpu_stuff(GrDirectContext* direct, DDLTileHelper::TileData* tile) {
// TODO: schedule program compilation as their own tasks
tile->precompile(direct);
tile->draw(direct);
tile->dropDDL();
}
// We expect to have more than one recording thread but just one gpu thread
void DDLTileHelper::kickOffThreadedWork(SkTaskGroup* recordingTaskGroup,
SkTaskGroup* gpuTaskGroup,
GrDirectContext* dContext,
SkPicture* picture) {
SkASSERT(recordingTaskGroup && gpuTaskGroup && dContext);
for (int i = 0; i < this->numTiles(); ++i) {
TileData* tile = &fTiles[i];
if (!tile->initialized()) {
continue;
}
// On a recording thread:
// generate the tile's DDL
// schedule gpu-thread processing of the DDL
// Note: a finer grained approach would be add a scheduling task which would evaluate
// which DDLs were ready to be rendered based on their prerequisites
recordingTaskGroup->add([tile, gpuTaskGroup, dContext, picture]() {
tile->createDDL(picture);
gpuTaskGroup->add([dContext, tile]() {
do_gpu_stuff(dContext, tile);
});
});
}
recordingTaskGroup->add([this] { this->createComposeDDL(); });
}
// Only called from skpbench
void DDLTileHelper::interleaveDDLCreationAndDraw(GrDirectContext* dContext, SkPicture* picture) {
for (int i = 0; i < this->numTiles(); ++i) {
fTiles[i].createDDL(picture);
fTiles[i].draw(dContext);
}
}
// Only called from skpbench
void DDLTileHelper::drawAllTilesDirectly(GrDirectContext* dContext, SkPicture* picture) {
for (int i = 0; i < this->numTiles(); ++i) {
fTiles[i].drawSKPDirectly(dContext, picture);
}
}
void DDLTileHelper::dropCallbackContexts() {
for (int i = 0; i < this->numTiles(); ++i) {
fTiles[i].dropCallbackContext();
}
}
void DDLTileHelper::resetAllTiles() {
for (int i = 0; i < this->numTiles(); ++i) {
fTiles[i].reset();
}
fComposeDDL.reset();
}
void DDLTileHelper::createBackendTextures(SkTaskGroup* taskGroup, GrDirectContext* direct) {
if (taskGroup) {
for (int i = 0; i < this->numTiles(); ++i) {
TileData* tile = &fTiles[i];
if (!tile->initialized()) {
continue;
}
taskGroup->add([direct, tile]() { TileData::CreateBackendTexture(direct, tile); });
}
} else {
for (int i = 0; i < this->numTiles(); ++i) {
TileData::CreateBackendTexture(direct, &fTiles[i]);
}
}
}
void DDLTileHelper::deleteBackendTextures(SkTaskGroup* taskGroup, GrDirectContext* direct) {
if (taskGroup) {
for (int i = 0; i < this->numTiles(); ++i) {
TileData* tile = &fTiles[i];
taskGroup->add([direct, tile]() { TileData::DeleteBackendTexture(direct, tile); });
}
} else {
for (int i = 0; i < this->numTiles(); ++i) {
TileData::DeleteBackendTexture(direct, &fTiles[i]);
}
}
}