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skia2/tests/OnFlushCallbackTest.cpp
Robert Phillips e94cdd2dbc Use QuadHelper and PatternHelper in more places 
Propagating usage of these helpers will, hopefully, improve code reuse and centralize future changes.

This is pulled out of https://skia-review.googlesource.com/c/skia/+/252161/ (Add GrPrimitiveType to GrProgramInfo)

Bug: skia:9455
Change-Id: I9b46e42db8561d98fb724a41a1f7a3bec4bf97b0
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/252484
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
2019-11-04 20:32:36 +00:00

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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "tests/Test.h"
#include "include/core/SkBitmap.h"
#include "include/gpu/GrBackendSemaphore.h"
#include "include/gpu/GrTexture.h"
#include "src/core/SkPointPriv.h"
#include "src/gpu/GrClip.h"
#include "src/gpu/GrContextPriv.h"
#include "src/gpu/GrDefaultGeoProcFactory.h"
#include "src/gpu/GrImageInfo.h"
#include "src/gpu/GrOnFlushResourceProvider.h"
#include "src/gpu/GrProxyProvider.h"
#include "src/gpu/GrRenderTargetContextPriv.h"
#include "src/gpu/GrResourceProvider.h"
#include "src/gpu/effects/generated/GrSimpleTextureEffect.h"
#include "src/gpu/geometry/GrQuad.h"
#include "src/gpu/ops/GrSimpleMeshDrawOpHelper.h"
#include "tests/TestUtils.h"
namespace {
// This is a simplified mesh drawing op that can be used in the atlas generation test.
// Please see AtlasedRectOp below.
class NonAARectOp : public GrMeshDrawOp {
protected:
using Helper = GrSimpleMeshDrawOpHelper;
public:
DEFINE_OP_CLASS_ID
// This creates an instance of a simple non-AA solid color rect-drawing Op
static std::unique_ptr<GrDrawOp> Make(GrRecordingContext* context,
GrPaint&& paint,
const SkRect& r) {
return Helper::FactoryHelper<NonAARectOp>(context, std::move(paint), r, nullptr, ClassID());
}
// This creates an instance of a simple non-AA textured rect-drawing Op
static std::unique_ptr<GrDrawOp> Make(GrRecordingContext* context,
GrPaint&& paint,
const SkRect& r,
const SkRect& local) {
return Helper::FactoryHelper<NonAARectOp>(context, std::move(paint), r, &local, ClassID());
}
const SkPMColor4f& color() const { return fColor; }
NonAARectOp(const Helper::MakeArgs& helperArgs, const SkPMColor4f& color, const SkRect& r,
const SkRect* localRect, int32_t classID)
: INHERITED(classID)
, fColor(color)
, fHasLocalRect(SkToBool(localRect))
, fRect(r)
, fHelper(helperArgs, GrAAType::kNone) {
if (fHasLocalRect) {
fLocalQuad = GrQuad(*localRect);
}
// Choose some conservative values for aa bloat and zero area.
this->setBounds(r, HasAABloat::kYes, IsHairline::kYes);
}
const char* name() const override { return "NonAARectOp"; }
void visitProxies(const VisitProxyFunc& func) const override {
fHelper.visitProxies(func);
}
FixedFunctionFlags fixedFunctionFlags() const override { return FixedFunctionFlags::kNone; }
GrProcessorSet::Analysis finalize(
const GrCaps& caps, const GrAppliedClip*, bool hasMixedSampledCoverage,
GrClampType clampType) override {
// Set the color to unknown because the subclass may change the color later.
GrProcessorAnalysisColor gpColor;
gpColor.setToUnknown();
// We ignore the clip so pass this rather than the GrAppliedClip param.
static GrAppliedClip kNoClip;
return fHelper.finalizeProcessors(caps, &kNoClip, hasMixedSampledCoverage, clampType,
GrProcessorAnalysisCoverage::kNone, &gpColor);
}
protected:
SkPMColor4f fColor;
bool fHasLocalRect;
GrQuad fLocalQuad;
SkRect fRect;
private:
void onPrepareDraws(Target* target) override {
using namespace GrDefaultGeoProcFactory;
// The vertex attrib order is always pos, color, local coords.
static const int kColorOffset = sizeof(SkPoint);
static const int kLocalOffset = sizeof(SkPoint) + sizeof(GrColor);
sk_sp<GrGeometryProcessor> gp =
GrDefaultGeoProcFactory::Make(target->caps().shaderCaps(),
Color::kPremulGrColorAttribute_Type,
Coverage::kSolid_Type,
fHasLocalRect ? LocalCoords::kHasExplicit_Type
: LocalCoords::kUnused_Type,
SkMatrix::I());
if (!gp) {
SkDebugf("Couldn't create GrGeometryProcessor for GrAtlasedOp\n");
return;
}
size_t vertexStride = gp->vertexStride();
sk_sp<const GrBuffer> indexBuffer;
int firstIndex;
uint16_t* indices = target->makeIndexSpace(6, &indexBuffer, &firstIndex);
if (!indices) {
SkDebugf("Indices could not be allocated for GrAtlasedOp.\n");
return;
}
sk_sp<const GrBuffer> vertexBuffer;
int firstVertex;
void* vertices = target->makeVertexSpace(vertexStride, 4, &vertexBuffer, &firstVertex);
if (!vertices) {
SkDebugf("Vertices could not be allocated for GrAtlasedOp.\n");
return;
}
// Setup indices
indices[0] = 0;
indices[1] = 1;
indices[2] = 2;
indices[3] = 2;
indices[4] = 1;
indices[5] = 3;
// Setup positions
SkPoint* position = (SkPoint*) vertices;
SkPointPriv::SetRectTriStrip(position, fRect, vertexStride);
// Setup vertex colors
GrColor* color = (GrColor*)((intptr_t)vertices + kColorOffset);
for (int i = 0; i < 4; ++i) {
*color = fColor.toBytes_RGBA();
color = (GrColor*)((intptr_t)color + vertexStride);
}
// Setup local coords
if (fHasLocalRect) {
SkPoint* coords = (SkPoint*)((intptr_t) vertices + kLocalOffset);
for (int i = 0; i < 4; i++) {
*coords = fLocalQuad.point(i);
coords = (SkPoint*)((intptr_t) coords + vertexStride);
}
}
GrMesh* mesh = target->allocMesh(GrPrimitiveType::kTriangles);
mesh->setIndexed(indexBuffer, 6, firstIndex, 0, 3, GrPrimitiveRestart::kNo);
mesh->setVertexData(vertexBuffer, firstVertex);
target->recordDraw(std::move(gp), mesh, 1);
}
void onExecute(GrOpFlushState* flushState, const SkRect& chainBounds) override {
fHelper.executeDrawsAndUploads(this, flushState, chainBounds);
}
Helper fHelper;
typedef GrMeshDrawOp INHERITED;
};
} // anonymous namespace
static constexpr SkRect kEmptyRect = SkRect::MakeEmpty();
namespace {
/*
* Atlased ops just draw themselves as textured rects with the texture pixels being
* pulled out of the atlas. Their color is based on their ID.
*/
class AtlasedRectOp final : public NonAARectOp {
public:
DEFINE_OP_CLASS_ID
~AtlasedRectOp() override {
fID = -1;
}
const char* name() const override { return "AtlasedRectOp"; }
int id() const { return fID; }
static std::unique_ptr<AtlasedRectOp> Make(GrContext* context,
GrPaint&& paint,
const SkRect& r,
int id) {
GrDrawOp* op = Helper::FactoryHelper<AtlasedRectOp>(context, std::move(paint),
r, id).release();
return std::unique_ptr<AtlasedRectOp>(static_cast<AtlasedRectOp*>(op));
}
// We set the initial color of the NonAARectOp based on the ID.
// Note that we force creation of a NonAARectOp that has local coords in anticipation of
// pulling from the atlas.
AtlasedRectOp(const Helper::MakeArgs& helperArgs, const SkPMColor4f& color, const SkRect& r,
int id)
: INHERITED(helperArgs, SkPMColor4f::FromBytes_RGBA(kColors[id]), r, &kEmptyRect,
ClassID())
, fID(id)
, fNext(nullptr) {
SkASSERT(fID < kMaxIDs);
}
void setColor(const SkPMColor4f& color) { fColor = color; }
void setLocalRect(const SkRect& localRect) {
SkASSERT(fHasLocalRect); // This should've been created to anticipate this
fLocalQuad = GrQuad(localRect);
}
AtlasedRectOp* next() const { return fNext; }
void setNext(AtlasedRectOp* next) {
fNext = next;
}
private:
static const int kMaxIDs = 9;
static const GrColor kColors[kMaxIDs];
int fID;
// The Atlased ops have an internal singly-linked list of ops that land in the same opsTask
AtlasedRectOp* fNext;
typedef NonAARectOp INHERITED;
};
} // anonymous namespace
const GrColor AtlasedRectOp::kColors[kMaxIDs] = {
GrColorPackRGBA(255, 0, 0, 255),
GrColorPackRGBA(0, 255, 0, 255),
GrColorPackRGBA(0, 0, 255, 255),
GrColorPackRGBA(0, 255, 255, 255),
GrColorPackRGBA(255, 0, 255, 255),
GrColorPackRGBA(255, 255, 0, 255),
GrColorPackRGBA(0, 0, 0, 255),
GrColorPackRGBA(128, 128, 128, 255),
GrColorPackRGBA(255, 255, 255, 255)
};
static const int kDrawnTileSize = 16;
/*
* Rather than performing any rect packing, this atlaser just lays out constant-sized
* tiles in an Nx1 row
*/
static const int kAtlasTileSize = 2;
/*
* This class aggregates the op information required for atlasing
*/
class AtlasObject final : public GrOnFlushCallbackObject {
public:
AtlasObject(skiatest::Reporter* reporter) : fDone(false), fReporter(reporter) {}
~AtlasObject() override {
SkASSERT(fDone);
}
void markAsDone() {
fDone = true;
}
// Insert the new op in an internal singly-linked list for 'opsTaskID'
void addOp(uint32_t opsTaskID, AtlasedRectOp* op) {
LinkedListHeader* header = nullptr;
for (int i = 0; i < fOps.count(); ++i) {
if (opsTaskID == fOps[i].fID) {
header = &(fOps[i]);
}
}
if (!header) {
fOps.push_back({opsTaskID, nullptr});
header = &(fOps[fOps.count()-1]);
}
op->setNext(header->fHead);
header->fHead = op;
}
int numOps() const { return fOps.count(); }
// Get the fully lazy proxy that is backing the atlas. Its actual width isn't
// known until flush time.
sk_sp<GrTextureProxy> getAtlasProxy(GrProxyProvider* proxyProvider, const GrCaps* caps) {
if (fAtlasProxy) {
return fAtlasProxy;
}
const GrBackendFormat format = caps->getDefaultBackendFormat(GrColorType::kRGBA_8888,
GrRenderable::kYes);
fAtlasProxy = GrProxyProvider::MakeFullyLazyProxy(
[format](GrResourceProvider* resourceProvider)
-> GrSurfaceProxy::LazyCallbackResult {
GrSurfaceDesc desc;
// TODO: until partial flushes in MDB lands we're stuck having
// all 9 atlas draws occur
desc.fWidth = 9 /*this->numOps()*/ * kAtlasTileSize;
desc.fHeight = kAtlasTileSize;
desc.fConfig = kRGBA_8888_GrPixelConfig;
return resourceProvider->createTexture(desc, format, GrRenderable::kYes, 1,
GrMipMapped::kNo, SkBudgeted::kYes,
GrProtected::kNo);
},
format,
GrRenderable::kYes,
1,
GrProtected::kNo,
kBottomLeft_GrSurfaceOrigin,
kRGBA_8888_GrPixelConfig,
*proxyProvider->caps(),
GrSurfaceProxy::UseAllocator::kNo);
return fAtlasProxy;
}
/*
* This callback creates the atlas and updates the AtlasedRectOps to read from it
*/
void preFlush(GrOnFlushResourceProvider* resourceProvider,
const uint32_t* opsTaskIDs,
int numOpsTaskIDs) override {
// Until MDB is landed we will most-likely only have one opsTask.
SkTDArray<LinkedListHeader*> lists;
for (int i = 0; i < numOpsTaskIDs; ++i) {
if (LinkedListHeader* list = this->getList(opsTaskIDs[i])) {
lists.push_back(list);
}
}
if (!lists.count()) {
return; // nothing to atlas
}
if (!resourceProvider->instatiateProxy(fAtlasProxy.get())) {
return;
}
// At this point 'fAtlasProxy' should be instantiated and have:
// 1 ref from the 'fAtlasProxy' sk_sp
// 9 refs from the 9 AtlasedRectOps
// The backing GrSurface should have only 1 though bc there is only one proxy
CheckSingleThreadedProxyRefs(fReporter, fAtlasProxy.get(), 10, 1);
auto rtc = resourceProvider->makeRenderTargetContext(fAtlasProxy, GrColorType::kRGBA_8888,
nullptr, nullptr);
// clear the atlas
rtc->clear(nullptr, SK_PMColor4fTRANSPARENT,
GrRenderTargetContext::CanClearFullscreen::kYes);
int blocksInAtlas = 0;
for (int i = 0; i < lists.count(); ++i) {
for (AtlasedRectOp* op = lists[i]->fHead; op; op = op->next()) {
SkIRect r = SkIRect::MakeXYWH(blocksInAtlas*kAtlasTileSize, 0,
kAtlasTileSize, kAtlasTileSize);
// For now, we avoid the resource buffer issues and just use clears
#if 1
rtc->clear(&r, op->color(), GrRenderTargetContext::CanClearFullscreen::kNo);
#else
GrPaint paint;
paint.setColor4f(op->color());
std::unique_ptr<GrDrawOp> drawOp(NonAARectOp::Make(std::move(paint),
SkRect::Make(r)));
rtc->priv().testingOnly_addDrawOp(std::move(drawOp));
#endif
blocksInAtlas++;
// Set the atlased Op's color to white (so we know we're not using it for
// the final draw).
op->setColor(SK_PMColor4fWHITE);
// Set the atlased Op's localRect to point to where it landed in the atlas
op->setLocalRect(SkRect::Make(r));
}
// We've updated all these ops and we certainly don't want to process them again
this->clearOpsFor(lists[i]);
}
}
private:
typedef struct {
uint32_t fID;
AtlasedRectOp* fHead;
} LinkedListHeader;
LinkedListHeader* getList(uint32_t opsTaskID) {
for (int i = 0; i < fOps.count(); ++i) {
if (opsTaskID == fOps[i].fID) {
return &(fOps[i]);
}
}
return nullptr;
}
void clearOpsFor(LinkedListHeader* header) {
// The AtlasedRectOps have yet to execute (and this class doesn't own them) so just
// forget about them in the laziest way possible.
header->fHead = nullptr;
header->fID = 0; // invalid opsTask ID
}
// Each opsTask containing AtlasedRectOps gets its own internal singly-linked list
SkTDArray<LinkedListHeader> fOps;
// The fully lazy proxy for the atlas
sk_sp<GrTextureProxy> fAtlasProxy;
// Set to true when the testing harness expects this object to be no longer used
bool fDone;
skiatest::Reporter* fReporter;
};
// This creates an off-screen rendertarget whose ops which eventually pull from the atlas.
static sk_sp<GrTextureProxy> make_upstream_image(GrContext* context, AtlasObject* object, int start,
sk_sp<GrTextureProxy> atlasProxy,
GrColorType atlasColorType) {
auto rtc = context->priv().makeDeferredRenderTargetContext(SkBackingFit::kApprox,
3* kDrawnTileSize,
kDrawnTileSize,
GrColorType::kRGBA_8888,
nullptr);
rtc->clear(nullptr, { 1, 0, 0, 1 }, GrRenderTargetContext::CanClearFullscreen::kYes);
for (int i = 0; i < 3; ++i) {
SkRect r = SkRect::MakeXYWH(i*kDrawnTileSize, 0, kDrawnTileSize, kDrawnTileSize);
auto fp = GrSimpleTextureEffect::Make(atlasProxy, atlasColorType, SkMatrix::I());
GrPaint paint;
paint.addColorFragmentProcessor(std::move(fp));
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
std::unique_ptr<AtlasedRectOp> op(AtlasedRectOp::Make(context,
std::move(paint), r, start + i));
AtlasedRectOp* sparePtr = op.get();
uint32_t opsTaskID;
rtc->priv().testingOnly_addDrawOp(GrNoClip(), std::move(op),
[&opsTaskID](GrOp* op, uint32_t id) { opsTaskID = id; });
SkASSERT(SK_InvalidUniqueID != opsTaskID);
object->addOp(opsTaskID, sparePtr);
}
return rtc->asTextureProxyRef();
}
// Enable this if you want to debug the final draws w/o having the atlasCallback create the
// atlas
#if 0
#include "SkGrPriv.h"
#include "include/core/SkImageEncoder.h"
#include "tools/ToolUtils.h"
static void save_bm(const SkBitmap& bm, const char name[]) {
bool result = ToolUtils::EncodeImageToFile(name, bm, SkEncodedImageFormat::kPNG, 100);
SkASSERT(result);
}
sk_sp<GrTextureProxy> pre_create_atlas(GrContext* context) {
SkBitmap bm;
bm.allocN32Pixels(18, 2, true);
bm.erase(SK_ColorRED, SkIRect::MakeXYWH(0, 0, 2, 2));
bm.erase(SK_ColorGREEN, SkIRect::MakeXYWH(2, 0, 2, 2));
bm.erase(SK_ColorBLUE, SkIRect::MakeXYWH(4, 0, 2, 2));
bm.erase(SK_ColorCYAN, SkIRect::MakeXYWH(6, 0, 2, 2));
bm.erase(SK_ColorMAGENTA, SkIRect::MakeXYWH(8, 0, 2, 2));
bm.erase(SK_ColorYELLOW, SkIRect::MakeXYWH(10, 0, 2, 2));
bm.erase(SK_ColorBLACK, SkIRect::MakeXYWH(12, 0, 2, 2));
bm.erase(SK_ColorGRAY, SkIRect::MakeXYWH(14, 0, 2, 2));
bm.erase(SK_ColorWHITE, SkIRect::MakeXYWH(16, 0, 2, 2));
#if 1
save_bm(bm, "atlas-fake.png");
#endif
GrSurfaceDesc desc = GrImageInfoToSurfaceDesc(bm.info());
desc.fFlags |= kRenderTarget_GrSurfaceFlag;
sk_sp<GrSurfaceProxy> tmp = GrSurfaceProxy::MakeDeferred(*context->caps(),
context->textureProvider(),
desc, SkBudgeted::kYes,
bm.getPixels(), bm.rowBytes());
return sk_ref_sp(tmp->asTextureProxy());
}
#endif
static void test_color(skiatest::Reporter* reporter, const SkBitmap& bm, int x, SkColor expected) {
SkColor readback = bm.getColor(x, kDrawnTileSize/2);
REPORTER_ASSERT(reporter, expected == readback);
if (expected != readback) {
SkDebugf("Color mismatch: %x %x\n", expected, readback);
}
}
/*
* For the atlasing test we make a DAG that looks like:
*
* RT1 with ops: 0,1,2 RT2 with ops: 3,4,5 RT3 with ops: 6,7,8
* \ /
* \ /
* RT4
* We then flush RT4 and expect only ops 0-5 to be atlased together.
* Each op is just a solid colored rect so both the atlas and the final image should appear as:
* R G B C M Y
* with the atlas having width = 6*kAtlasTileSize and height = kAtlasTileSize.
*
* Note: until partial flushes in MDB lands, the atlas will actually have width= 9*kAtlasTileSize
* and look like:
* R G B C M Y K Grey White
*/
DEF_GPUTEST_FOR_GL_RENDERING_CONTEXTS(OnFlushCallbackTest, reporter, ctxInfo) {
static const int kNumProxies = 3;
GrContext* context = ctxInfo.grContext();
auto proxyProvider = context->priv().proxyProvider();
AtlasObject object(reporter);
context->priv().addOnFlushCallbackObject(&object);
sk_sp<GrTextureProxy> proxies[kNumProxies];
for (int i = 0; i < kNumProxies; ++i) {
proxies[i] = make_upstream_image(context, &object, i*3,
object.getAtlasProxy(proxyProvider,
context->priv().caps()),
GrColorType::kRGBA_8888);
}
static const int kFinalWidth = 6*kDrawnTileSize;
static const int kFinalHeight = kDrawnTileSize;
auto rtc = context->priv().makeDeferredRenderTargetContext(
SkBackingFit::kApprox, kFinalWidth, kFinalHeight, GrColorType::kRGBA_8888, nullptr);
rtc->clear(nullptr, SK_PMColor4fWHITE, GrRenderTargetContext::CanClearFullscreen::kYes);
// Note that this doesn't include the third texture proxy
for (int i = 0; i < kNumProxies-1; ++i) {
SkRect r = SkRect::MakeXYWH(i*3*kDrawnTileSize, 0, 3*kDrawnTileSize, kDrawnTileSize);
SkMatrix t = SkMatrix::MakeTrans(-i*3*kDrawnTileSize, 0);
GrPaint paint;
auto fp = GrSimpleTextureEffect::Make(std::move(proxies[i]), GrColorType::kRGBA_8888, t);
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
paint.addColorFragmentProcessor(std::move(fp));
rtc->drawRect(GrNoClip(), std::move(paint), GrAA::kNo, SkMatrix::I(), r);
}
rtc->flush(SkSurface::BackendSurfaceAccess::kNoAccess, GrFlushInfo());
SkBitmap readBack;
readBack.allocN32Pixels(kFinalWidth, kFinalHeight);
SkDEBUGCODE(bool result =) rtc->readPixels(readBack.info(), readBack.getPixels(),
readBack.rowBytes(), {0, 0});
SkASSERT(result);
context->priv().testingOnly_flushAndRemoveOnFlushCallbackObject(&object);
object.markAsDone();
int x = kDrawnTileSize/2;
test_color(reporter, readBack, x, SK_ColorRED);
x += kDrawnTileSize;
test_color(reporter, readBack, x, SK_ColorGREEN);
x += kDrawnTileSize;
test_color(reporter, readBack, x, SK_ColorBLUE);
x += kDrawnTileSize;
test_color(reporter, readBack, x, SK_ColorCYAN);
x += kDrawnTileSize;
test_color(reporter, readBack, x, SK_ColorMAGENTA);
x += kDrawnTileSize;
test_color(reporter, readBack, x, SK_ColorYELLOW);
}
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