skia2/tests/PictureTest.cpp
2016-09-20 08:42:39 -07:00

1309 lines
44 KiB
C++

/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkBigPicture.h"
#include "SkBBoxHierarchy.h"
#include "SkBlurImageFilter.h"
#include "SkCanvas.h"
#include "SkColorMatrixFilter.h"
#include "SkColorPriv.h"
#include "SkDashPathEffect.h"
#include "SkData.h"
#include "SkImageGenerator.h"
#include "SkError.h"
#include "SkImageEncoder.h"
#include "SkImageGenerator.h"
#include "SkMD5.h"
#include "SkPaint.h"
#include "SkPicture.h"
#include "SkPictureAnalyzer.h"
#include "SkPictureRecorder.h"
#include "SkPictureUtils.h"
#include "SkPixelRef.h"
#include "SkPixelSerializer.h"
#include "SkMiniRecorder.h"
#include "SkRRect.h"
#include "SkRandom.h"
#include "SkRecord.h"
#include "SkShader.h"
#include "SkStream.h"
#include "sk_tool_utils.h"
#include "Test.h"
#include "SkLumaColorFilter.h"
#include "SkColorFilterImageFilter.h"
static void make_bm(SkBitmap* bm, int w, int h, SkColor color, bool immutable) {
bm->allocN32Pixels(w, h);
bm->eraseColor(color);
if (immutable) {
bm->setImmutable();
}
}
// For a while willPlayBackBitmaps() ignored SkImages and just looked for SkBitmaps.
static void test_images_are_found_by_willPlayBackBitmaps(skiatest::Reporter* reporter) {
// We just need _some_ SkImage
const SkPMColor pixel = 0;
const SkImageInfo info = SkImageInfo::MakeN32Premul(1, 1);
sk_sp<SkImage> image(SkImage::MakeRasterCopy(SkPixmap(info, &pixel, sizeof(pixel))));
SkPictureRecorder recorder;
recorder.beginRecording(100,100)->drawImage(image, 0,0);
sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
REPORTER_ASSERT(reporter, picture->willPlayBackBitmaps());
}
/* Hit a few SkPicture::Analysis cases not handled elsewhere. */
static void test_analysis(skiatest::Reporter* reporter) {
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(100, 100);
{
canvas->drawRect(SkRect::MakeWH(10, 10), SkPaint ());
}
sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
REPORTER_ASSERT(reporter, !picture->willPlayBackBitmaps());
canvas = recorder.beginRecording(100, 100);
{
SkPaint paint;
// CreateBitmapShader is too smart for us; an empty (or 1x1) bitmap shader
// gets optimized into a non-bitmap form, so we create a 2x2 bitmap here.
SkBitmap bitmap;
bitmap.allocPixels(SkImageInfo::MakeN32Premul(2, 2));
bitmap.eraseColor(SK_ColorBLUE);
*(bitmap.getAddr32(0, 0)) = SK_ColorGREEN;
paint.setShader(SkShader::MakeBitmapShader(bitmap, SkShader::kClamp_TileMode,
SkShader::kClamp_TileMode));
REPORTER_ASSERT(reporter, paint.getShader()->isABitmap());
canvas->drawRect(SkRect::MakeWH(10, 10), paint);
}
REPORTER_ASSERT(reporter, recorder.finishRecordingAsPicture()->willPlayBackBitmaps());
}
#ifdef SK_DEBUG
// Ensure that deleting an empty SkPicture does not assert. Asserts only fire
// in debug mode, so only run in debug mode.
static void test_deleting_empty_picture() {
SkPictureRecorder recorder;
// Creates an SkPictureRecord
recorder.beginRecording(0, 0);
// Turns that into an SkPicture
sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
// Ceates a new SkPictureRecord
recorder.beginRecording(0, 0);
}
// Ensure that serializing an empty picture does not assert. Likewise only runs in debug mode.
static void test_serializing_empty_picture() {
SkPictureRecorder recorder;
recorder.beginRecording(0, 0);
sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
SkDynamicMemoryWStream stream;
picture->serialize(&stream);
}
#endif
static void rand_op(SkCanvas* canvas, SkRandom& rand) {
SkPaint paint;
SkRect rect = SkRect::MakeWH(50, 50);
SkScalar unit = rand.nextUScalar1();
if (unit <= 0.3) {
// SkDebugf("save\n");
canvas->save();
} else if (unit <= 0.6) {
// SkDebugf("restore\n");
canvas->restore();
} else if (unit <= 0.9) {
// SkDebugf("clip\n");
canvas->clipRect(rect);
} else {
// SkDebugf("draw\n");
canvas->drawPaint(paint);
}
}
#if SK_SUPPORT_GPU
static SkPath make_convex_path() {
SkPath path;
path.lineTo(100, 0);
path.lineTo(50, 100);
path.close();
return path;
}
static SkPath make_concave_path() {
SkPath path;
path.lineTo(50, 50);
path.lineTo(100, 0);
path.lineTo(50, 100);
path.close();
return path;
}
static void test_gpu_veto(skiatest::Reporter* reporter) {
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(100, 100);
{
SkPath path;
path.moveTo(0, 0);
path.lineTo(50, 50);
SkScalar intervals[] = { 1.0f, 1.0f };
sk_sp<SkPathEffect> dash(SkDashPathEffect::Make(intervals, 2, 0));
SkPaint paint;
paint.setStyle(SkPaint::kStroke_Style);
paint.setPathEffect(dash);
for (int i = 0; i < 50; ++i) {
canvas->drawPath(path, paint);
}
}
sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
// path effects currently render an SkPicture undesireable for GPU rendering
const char *reason = nullptr;
REPORTER_ASSERT(reporter,
!SkPictureGpuAnalyzer(picture).suitableForGpuRasterization(&reason));
REPORTER_ASSERT(reporter, reason);
canvas = recorder.beginRecording(100, 100);
{
SkPath path;
path.moveTo(0, 0);
path.lineTo(0, 50);
path.lineTo(25, 25);
path.lineTo(50, 50);
path.lineTo(50, 0);
path.close();
REPORTER_ASSERT(reporter, !path.isConvex());
SkPaint paint;
paint.setAntiAlias(true);
for (int i = 0; i < 50; ++i) {
canvas->drawPath(path, paint);
}
}
picture = recorder.finishRecordingAsPicture();
// A lot of small AA concave paths should be fine for GPU rendering
REPORTER_ASSERT(reporter, SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());
canvas = recorder.beginRecording(100, 100);
{
SkPath path;
path.moveTo(0, 0);
path.lineTo(0, 100);
path.lineTo(50, 50);
path.lineTo(100, 100);
path.lineTo(100, 0);
path.close();
REPORTER_ASSERT(reporter, !path.isConvex());
SkPaint paint;
paint.setAntiAlias(true);
for (int i = 0; i < 50; ++i) {
canvas->drawPath(path, paint);
}
}
picture = recorder.finishRecordingAsPicture();
// A lot of large AA concave paths currently render an SkPicture undesireable for GPU rendering
REPORTER_ASSERT(reporter, !SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());
canvas = recorder.beginRecording(100, 100);
{
SkPath path;
path.moveTo(0, 0);
path.lineTo(0, 50);
path.lineTo(25, 25);
path.lineTo(50, 50);
path.lineTo(50, 0);
path.close();
REPORTER_ASSERT(reporter, !path.isConvex());
SkPaint paint;
paint.setAntiAlias(true);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(0);
for (int i = 0; i < 50; ++i) {
canvas->drawPath(path, paint);
}
}
picture = recorder.finishRecordingAsPicture();
// hairline stroked AA concave paths are fine for GPU rendering
REPORTER_ASSERT(reporter, SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());
canvas = recorder.beginRecording(100, 100);
{
SkPaint paint;
SkScalar intervals [] = { 10, 20 };
paint.setPathEffect(SkDashPathEffect::Make(intervals, 2, 25));
SkPoint points [2] = { { 0, 0 }, { 100, 0 } };
for (int i = 0; i < 50; ++i) {
canvas->drawPoints(SkCanvas::kLines_PointMode, 2, points, paint);
}
}
picture = recorder.finishRecordingAsPicture();
// fast-path dashed effects are fine for GPU rendering ...
REPORTER_ASSERT(reporter, SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());
canvas = recorder.beginRecording(100, 100);
{
SkPaint paint;
SkScalar intervals [] = { 10, 20 };
paint.setPathEffect(SkDashPathEffect::Make(intervals, 2, 25));
for (int i = 0; i < 50; ++i) {
canvas->drawRect(SkRect::MakeWH(10, 10), paint);
}
}
picture = recorder.finishRecordingAsPicture();
// ... but only when applied to drawPoint() calls
REPORTER_ASSERT(reporter, !SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());
canvas = recorder.beginRecording(100, 100);
{
const SkPath convexClip = make_convex_path();
const SkPath concaveClip = make_concave_path();
for (int i = 0; i < 50; ++i) {
canvas->clipPath(convexClip);
canvas->clipPath(concaveClip);
canvas->clipPath(convexClip, SkCanvas::kIntersect_Op, true);
canvas->drawRect(SkRect::MakeWH(100, 100), SkPaint());
}
}
picture = recorder.finishRecordingAsPicture();
// Convex clips and non-AA concave clips are fine on the GPU.
REPORTER_ASSERT(reporter, SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());
canvas = recorder.beginRecording(100, 100);
{
const SkPath concaveClip = make_concave_path();
for (int i = 0; i < 50; ++i) {
canvas->clipPath(concaveClip, SkCanvas::kIntersect_Op, true);
canvas->drawRect(SkRect::MakeWH(100, 100), SkPaint());
}
}
picture = recorder.finishRecordingAsPicture();
// ... but AA concave clips are not.
REPORTER_ASSERT(reporter, !SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());
// Nest the previous picture inside a new one.
canvas = recorder.beginRecording(100, 100);
{
canvas->drawPicture(picture);
}
picture = recorder.finishRecordingAsPicture();
REPORTER_ASSERT(reporter, !SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());
}
#endif // SK_SUPPORT_GPU
static void set_canvas_to_save_count_4(SkCanvas* canvas) {
canvas->restoreToCount(1);
canvas->save();
canvas->save();
canvas->save();
}
/**
* A canvas that records the number of saves, saveLayers and restores.
*/
class SaveCountingCanvas : public SkCanvas {
public:
SaveCountingCanvas(int width, int height)
: INHERITED(width, height)
, fSaveCount(0)
, fSaveLayerCount(0)
, fRestoreCount(0){
}
SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec& rec) override {
++fSaveLayerCount;
return this->INHERITED::getSaveLayerStrategy(rec);
}
void willSave() override {
++fSaveCount;
this->INHERITED::willSave();
}
void willRestore() override {
++fRestoreCount;
this->INHERITED::willRestore();
}
unsigned int getSaveCount() const { return fSaveCount; }
unsigned int getSaveLayerCount() const { return fSaveLayerCount; }
unsigned int getRestoreCount() const { return fRestoreCount; }
private:
unsigned int fSaveCount;
unsigned int fSaveLayerCount;
unsigned int fRestoreCount;
typedef SkCanvas INHERITED;
};
void check_save_state(skiatest::Reporter* reporter, SkPicture* picture,
unsigned int numSaves, unsigned int numSaveLayers,
unsigned int numRestores) {
SaveCountingCanvas canvas(SkScalarCeilToInt(picture->cullRect().width()),
SkScalarCeilToInt(picture->cullRect().height()));
picture->playback(&canvas);
// Optimizations may have removed these,
// so expect to have seen no more than num{Saves,SaveLayers,Restores}.
REPORTER_ASSERT(reporter, numSaves >= canvas.getSaveCount());
REPORTER_ASSERT(reporter, numSaveLayers >= canvas.getSaveLayerCount());
REPORTER_ASSERT(reporter, numRestores >= canvas.getRestoreCount());
}
// This class exists so SkPicture can friend it and give it access to
// the 'partialReplay' method.
class SkPictureRecorderReplayTester {
public:
static sk_sp<SkPicture> Copy(SkPictureRecorder* recorder) {
SkPictureRecorder recorder2;
SkCanvas* canvas = recorder2.beginRecording(10, 10);
recorder->partialReplay(canvas);
return recorder2.finishRecordingAsPicture();
}
};
static void create_imbalance(SkCanvas* canvas) {
SkRect clipRect = SkRect::MakeWH(2, 2);
SkRect drawRect = SkRect::MakeWH(10, 10);
canvas->save();
canvas->clipRect(clipRect, SkCanvas::kReplace_Op);
canvas->translate(1.0f, 1.0f);
SkPaint p;
p.setColor(SK_ColorGREEN);
canvas->drawRect(drawRect, p);
// no restore
}
// This tests that replaying a potentially unbalanced picture into a canvas
// doesn't affect the canvas' save count or matrix/clip state.
static void check_balance(skiatest::Reporter* reporter, SkPicture* picture) {
SkBitmap bm;
bm.allocN32Pixels(4, 3);
SkCanvas canvas(bm);
int beforeSaveCount = canvas.getSaveCount();
SkMatrix beforeMatrix = canvas.getTotalMatrix();
SkRect beforeClip;
canvas.getClipBounds(&beforeClip);
canvas.drawPicture(picture);
REPORTER_ASSERT(reporter, beforeSaveCount == canvas.getSaveCount());
REPORTER_ASSERT(reporter, beforeMatrix == canvas.getTotalMatrix());
SkRect afterClip;
canvas.getClipBounds(&afterClip);
REPORTER_ASSERT(reporter, afterClip == beforeClip);
}
// Test out SkPictureRecorder::partialReplay
DEF_TEST(PictureRecorder_replay, reporter) {
// check save/saveLayer state
{
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(10, 10);
canvas->saveLayer(nullptr, nullptr);
sk_sp<SkPicture> copy(SkPictureRecorderReplayTester::Copy(&recorder));
// The extra save and restore comes from the Copy process.
check_save_state(reporter, copy.get(), 2, 1, 3);
canvas->saveLayer(nullptr, nullptr);
sk_sp<SkPicture> final(recorder.finishRecordingAsPicture());
check_save_state(reporter, final.get(), 1, 2, 3);
// The copy shouldn't pick up any operations added after it was made
check_save_state(reporter, copy.get(), 2, 1, 3);
}
// (partially) check leakage of draw ops
{
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(10, 10);
SkRect r = SkRect::MakeWH(5, 5);
SkPaint p;
canvas->drawRect(r, p);
sk_sp<SkPicture> copy(SkPictureRecorderReplayTester::Copy(&recorder));
REPORTER_ASSERT(reporter, !copy->willPlayBackBitmaps());
SkBitmap bm;
make_bm(&bm, 10, 10, SK_ColorRED, true);
r.offset(5.0f, 5.0f);
canvas->drawBitmapRect(bm, r, nullptr);
sk_sp<SkPicture> final(recorder.finishRecordingAsPicture());
REPORTER_ASSERT(reporter, final->willPlayBackBitmaps());
REPORTER_ASSERT(reporter, copy->uniqueID() != final->uniqueID());
// The snapshot shouldn't pick up any operations added after it was made
REPORTER_ASSERT(reporter, !copy->willPlayBackBitmaps());
}
// Recreate the Android partialReplay test case
{
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(4, 3, nullptr, 0);
create_imbalance(canvas);
int expectedSaveCount = canvas->getSaveCount();
sk_sp<SkPicture> copy(SkPictureRecorderReplayTester::Copy(&recorder));
check_balance(reporter, copy.get());
REPORTER_ASSERT(reporter, expectedSaveCount = canvas->getSaveCount());
// End the recording of source to test the picture finalization
// process isn't complicated by the partialReplay step
sk_sp<SkPicture> final(recorder.finishRecordingAsPicture());
}
}
static void test_unbalanced_save_restores(skiatest::Reporter* reporter) {
SkCanvas testCanvas(100, 100);
set_canvas_to_save_count_4(&testCanvas);
REPORTER_ASSERT(reporter, 4 == testCanvas.getSaveCount());
SkPaint paint;
SkRect rect = SkRect::MakeLTRB(-10000000, -10000000, 10000000, 10000000);
SkPictureRecorder recorder;
{
// Create picture with 2 unbalanced saves
SkCanvas* canvas = recorder.beginRecording(100, 100);
canvas->save();
canvas->translate(10, 10);
canvas->drawRect(rect, paint);
canvas->save();
canvas->translate(10, 10);
canvas->drawRect(rect, paint);
sk_sp<SkPicture> extraSavePicture(recorder.finishRecordingAsPicture());
testCanvas.drawPicture(extraSavePicture);
REPORTER_ASSERT(reporter, 4 == testCanvas.getSaveCount());
}
set_canvas_to_save_count_4(&testCanvas);
{
// Create picture with 2 unbalanced restores
SkCanvas* canvas = recorder.beginRecording(100, 100);
canvas->save();
canvas->translate(10, 10);
canvas->drawRect(rect, paint);
canvas->save();
canvas->translate(10, 10);
canvas->drawRect(rect, paint);
canvas->restore();
canvas->restore();
canvas->restore();
canvas->restore();
sk_sp<SkPicture> extraRestorePicture(recorder.finishRecordingAsPicture());
testCanvas.drawPicture(extraRestorePicture);
REPORTER_ASSERT(reporter, 4 == testCanvas.getSaveCount());
}
set_canvas_to_save_count_4(&testCanvas);
{
SkCanvas* canvas = recorder.beginRecording(100, 100);
canvas->translate(10, 10);
canvas->drawRect(rect, paint);
sk_sp<SkPicture> noSavePicture(recorder.finishRecordingAsPicture());
testCanvas.drawPicture(noSavePicture);
REPORTER_ASSERT(reporter, 4 == testCanvas.getSaveCount());
REPORTER_ASSERT(reporter, testCanvas.getTotalMatrix().isIdentity());
}
}
static void test_peephole() {
SkRandom rand;
SkPictureRecorder recorder;
for (int j = 0; j < 100; j++) {
SkRandom rand2(rand); // remember the seed
SkCanvas* canvas = recorder.beginRecording(100, 100);
for (int i = 0; i < 1000; ++i) {
rand_op(canvas, rand);
}
sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
rand = rand2;
}
{
SkCanvas* canvas = recorder.beginRecording(100, 100);
SkRect rect = SkRect::MakeWH(50, 50);
for (int i = 0; i < 100; ++i) {
canvas->save();
}
while (canvas->getSaveCount() > 1) {
canvas->clipRect(rect);
canvas->restore();
}
sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
}
}
#ifndef SK_DEBUG
// Only test this is in release mode. We deliberately crash in debug mode, since a valid caller
// should never do this.
static void test_bad_bitmap() {
// This bitmap has a width and height but no pixels. As a result, attempting to record it will
// fail.
SkBitmap bm;
bm.setInfo(SkImageInfo::MakeN32Premul(100, 100));
SkPictureRecorder recorder;
SkCanvas* recordingCanvas = recorder.beginRecording(100, 100);
recordingCanvas->drawBitmap(bm, 0, 0);
sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
SkCanvas canvas;
canvas.drawPicture(picture);
}
#endif
static sk_sp<SkData> serialized_picture_from_bitmap(const SkBitmap& bitmap) {
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(SkIntToScalar(bitmap.width()),
SkIntToScalar(bitmap.height()));
canvas->drawBitmap(bitmap, 0, 0);
sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
SkDynamicMemoryWStream wStream;
SkAutoTUnref<SkPixelSerializer> serializer(
SkImageEncoder::CreatePixelSerializer());
picture->serialize(&wStream, serializer);
return wStream.detachAsData();
}
struct ErrorContext {
int fErrors;
skiatest::Reporter* fReporter;
};
static void assert_one_parse_error_cb(SkError error, void* context) {
ErrorContext* errorContext = static_cast<ErrorContext*>(context);
errorContext->fErrors++;
// This test only expects one error, and that is a kParseError. If there are others,
// there is some unknown problem.
REPORTER_ASSERT_MESSAGE(errorContext->fReporter, 1 == errorContext->fErrors,
"This threw more errors than expected.");
REPORTER_ASSERT_MESSAGE(errorContext->fReporter, kParseError_SkError == error,
SkGetLastErrorString());
}
static void md5(const SkBitmap& bm, SkMD5::Digest* digest) {
SkAutoLockPixels autoLockPixels(bm);
SkASSERT(bm.getPixels());
SkMD5 md5;
size_t rowLen = bm.info().bytesPerPixel() * bm.width();
for (int y = 0; y < bm.height(); ++y) {
md5.write(bm.getAddr(0, y), rowLen);
}
md5.finish(*digest);
}
DEF_TEST(Picture_EncodedData, reporter) {
// Create a bitmap that will be encoded.
SkBitmap original;
make_bm(&original, 100, 100, SK_ColorBLUE, true);
SkDynamicMemoryWStream wStream;
if (!SkImageEncoder::EncodeStream(&wStream, original, SkImageEncoder::kPNG_Type, 100)) {
return;
}
sk_sp<SkData> data = wStream.detachAsData();
SkBitmap bm;
bool installSuccess = SkDEPRECATED_InstallDiscardablePixelRef(data.get(), &bm);
REPORTER_ASSERT(reporter, installSuccess);
// Write both bitmaps to pictures, and ensure that the resulting data streams are the same.
// Flattening original will follow the old path of performing an encode, while flattening bm
// will use the already encoded data.
sk_sp<SkData> picture1(serialized_picture_from_bitmap(original));
sk_sp<SkData> picture2(serialized_picture_from_bitmap(bm));
REPORTER_ASSERT(reporter, picture1->equals(picture2.get()));
// Now test that a parse error was generated when trying to create a new SkPicture without
// providing a function to decode the bitmap.
ErrorContext context;
context.fErrors = 0;
context.fReporter = reporter;
SkSetErrorCallback(assert_one_parse_error_cb, &context);
SkMemoryStream pictureStream(std::move(picture1));
SkClearLastError();
sk_sp<SkPicture> pictureFromStream(SkPicture::MakeFromStream(&pictureStream));
REPORTER_ASSERT(reporter, pictureFromStream.get() != nullptr);
SkClearLastError();
SkSetErrorCallback(nullptr, nullptr);
// Test that using the version of CreateFromStream that just takes a stream also decodes the
// bitmap. Drawing this picture should look exactly like the original bitmap.
SkMD5::Digest referenceDigest;
md5(original, &referenceDigest);
SkBitmap dst;
dst.allocPixels(original.info());
dst.eraseColor(SK_ColorRED);
SkCanvas canvas(dst);
pictureStream.rewind();
pictureFromStream = SkPicture::MakeFromStream(&pictureStream);
canvas.drawPicture(pictureFromStream.get());
SkMD5::Digest digest2;
md5(dst, &digest2);
REPORTER_ASSERT(reporter, referenceDigest == digest2);
}
static void test_clip_bound_opt(skiatest::Reporter* reporter) {
// Test for crbug.com/229011
SkRect rect1 = SkRect::MakeXYWH(SkIntToScalar(4), SkIntToScalar(4),
SkIntToScalar(2), SkIntToScalar(2));
SkRect rect2 = SkRect::MakeXYWH(SkIntToScalar(7), SkIntToScalar(7),
SkIntToScalar(1), SkIntToScalar(1));
SkRect rect3 = SkRect::MakeXYWH(SkIntToScalar(6), SkIntToScalar(6),
SkIntToScalar(1), SkIntToScalar(1));
SkPath invPath;
invPath.addOval(rect1);
invPath.setFillType(SkPath::kInverseEvenOdd_FillType);
SkPath path;
path.addOval(rect2);
SkPath path2;
path2.addOval(rect3);
SkIRect clipBounds;
SkPictureRecorder recorder;
// Testing conservative-raster-clip that is enabled by PictureRecord
{
SkCanvas* canvas = recorder.beginRecording(10, 10);
canvas->clipPath(invPath);
bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds);
REPORTER_ASSERT(reporter, true == nonEmpty);
REPORTER_ASSERT(reporter, 0 == clipBounds.fLeft);
REPORTER_ASSERT(reporter, 0 == clipBounds.fTop);
REPORTER_ASSERT(reporter, 10 == clipBounds.fBottom);
REPORTER_ASSERT(reporter, 10 == clipBounds.fRight);
}
{
SkCanvas* canvas = recorder.beginRecording(10, 10);
canvas->clipPath(path);
canvas->clipPath(invPath);
bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds);
REPORTER_ASSERT(reporter, true == nonEmpty);
REPORTER_ASSERT(reporter, 7 == clipBounds.fLeft);
REPORTER_ASSERT(reporter, 7 == clipBounds.fTop);
REPORTER_ASSERT(reporter, 8 == clipBounds.fBottom);
REPORTER_ASSERT(reporter, 8 == clipBounds.fRight);
}
{
SkCanvas* canvas = recorder.beginRecording(10, 10);
canvas->clipPath(path);
canvas->clipPath(invPath, SkCanvas::kUnion_Op);
bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds);
REPORTER_ASSERT(reporter, true == nonEmpty);
REPORTER_ASSERT(reporter, 0 == clipBounds.fLeft);
REPORTER_ASSERT(reporter, 0 == clipBounds.fTop);
REPORTER_ASSERT(reporter, 10 == clipBounds.fBottom);
REPORTER_ASSERT(reporter, 10 == clipBounds.fRight);
}
{
SkCanvas* canvas = recorder.beginRecording(10, 10);
canvas->clipPath(path, SkCanvas::kDifference_Op);
bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds);
REPORTER_ASSERT(reporter, true == nonEmpty);
REPORTER_ASSERT(reporter, 0 == clipBounds.fLeft);
REPORTER_ASSERT(reporter, 0 == clipBounds.fTop);
REPORTER_ASSERT(reporter, 10 == clipBounds.fBottom);
REPORTER_ASSERT(reporter, 10 == clipBounds.fRight);
}
{
SkCanvas* canvas = recorder.beginRecording(10, 10);
canvas->clipPath(path, SkCanvas::kReverseDifference_Op);
bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds);
// True clip is actually empty in this case, but the best
// determination we can make using only bounds as input is that the
// clip is included in the bounds of 'path'.
REPORTER_ASSERT(reporter, true == nonEmpty);
REPORTER_ASSERT(reporter, 7 == clipBounds.fLeft);
REPORTER_ASSERT(reporter, 7 == clipBounds.fTop);
REPORTER_ASSERT(reporter, 8 == clipBounds.fBottom);
REPORTER_ASSERT(reporter, 8 == clipBounds.fRight);
}
{
SkCanvas* canvas = recorder.beginRecording(10, 10);
canvas->clipPath(path, SkCanvas::kIntersect_Op);
canvas->clipPath(path2, SkCanvas::kXOR_Op);
bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds);
REPORTER_ASSERT(reporter, true == nonEmpty);
REPORTER_ASSERT(reporter, 6 == clipBounds.fLeft);
REPORTER_ASSERT(reporter, 6 == clipBounds.fTop);
REPORTER_ASSERT(reporter, 8 == clipBounds.fBottom);
REPORTER_ASSERT(reporter, 8 == clipBounds.fRight);
}
}
static void test_cull_rect_reset(skiatest::Reporter* reporter) {
SkPictureRecorder recorder;
SkRect bounds = SkRect::MakeWH(10, 10);
SkRTreeFactory factory;
SkCanvas* canvas = recorder.beginRecording(bounds, &factory);
bounds = SkRect::MakeWH(100, 100);
SkPaint paint;
canvas->drawRect(bounds, paint);
canvas->drawRect(bounds, paint);
sk_sp<SkPicture> p(recorder.finishRecordingAsPictureWithCull(bounds));
const SkBigPicture* picture = p->asSkBigPicture();
REPORTER_ASSERT(reporter, picture);
SkRect finalCullRect = picture->cullRect();
REPORTER_ASSERT(reporter, 0 == finalCullRect.fLeft);
REPORTER_ASSERT(reporter, 0 == finalCullRect.fTop);
REPORTER_ASSERT(reporter, 100 == finalCullRect.fBottom);
REPORTER_ASSERT(reporter, 100 == finalCullRect.fRight);
const SkBBoxHierarchy* pictureBBH = picture->bbh();
SkRect bbhCullRect = pictureBBH->getRootBound();
REPORTER_ASSERT(reporter, 0 == bbhCullRect.fLeft);
REPORTER_ASSERT(reporter, 0 == bbhCullRect.fTop);
REPORTER_ASSERT(reporter, 100 == bbhCullRect.fBottom);
REPORTER_ASSERT(reporter, 100 == bbhCullRect.fRight);
}
/**
* A canvas that records the number of clip commands.
*/
class ClipCountingCanvas : public SkCanvas {
public:
ClipCountingCanvas(int width, int height)
: INHERITED(width, height)
, fClipCount(0){
}
void onClipRect(const SkRect& r, ClipOp op, ClipEdgeStyle edgeStyle) override {
fClipCount += 1;
this->INHERITED::onClipRect(r, op, edgeStyle);
}
void onClipRRect(const SkRRect& rrect, ClipOp op, ClipEdgeStyle edgeStyle)override {
fClipCount += 1;
this->INHERITED::onClipRRect(rrect, op, edgeStyle);
}
void onClipPath(const SkPath& path, ClipOp op, ClipEdgeStyle edgeStyle) override {
fClipCount += 1;
this->INHERITED::onClipPath(path, op, edgeStyle);
}
void onClipRegion(const SkRegion& deviceRgn, ClipOp op) override {
fClipCount += 1;
this->INHERITED::onClipRegion(deviceRgn, op);
}
unsigned getClipCount() const { return fClipCount; }
private:
unsigned fClipCount;
typedef SkCanvas INHERITED;
};
static void test_clip_expansion(skiatest::Reporter* reporter) {
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(10, 10);
canvas->clipRect(SkRect::MakeEmpty(), SkCanvas::kReplace_Op);
// The following expanding clip should not be skipped.
canvas->clipRect(SkRect::MakeXYWH(4, 4, 3, 3), SkCanvas::kUnion_Op);
// Draw something so the optimizer doesn't just fold the world.
SkPaint p;
p.setColor(SK_ColorBLUE);
canvas->drawPaint(p);
sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
ClipCountingCanvas testCanvas(10, 10);
picture->playback(&testCanvas);
// Both clips should be present on playback.
REPORTER_ASSERT(reporter, testCanvas.getClipCount() == 2);
}
static void test_hierarchical(skiatest::Reporter* reporter) {
SkBitmap bm;
make_bm(&bm, 10, 10, SK_ColorRED, true);
SkPictureRecorder recorder;
recorder.beginRecording(10, 10);
sk_sp<SkPicture> childPlain(recorder.finishRecordingAsPicture());
REPORTER_ASSERT(reporter, !childPlain->willPlayBackBitmaps()); // 0
recorder.beginRecording(10, 10)->drawBitmap(bm, 0, 0);
sk_sp<SkPicture> childWithBitmap(recorder.finishRecordingAsPicture());
REPORTER_ASSERT(reporter, childWithBitmap->willPlayBackBitmaps()); // 1
{
SkCanvas* canvas = recorder.beginRecording(10, 10);
canvas->drawPicture(childPlain);
sk_sp<SkPicture> parentPP(recorder.finishRecordingAsPicture());
REPORTER_ASSERT(reporter, !parentPP->willPlayBackBitmaps()); // 0
}
{
SkCanvas* canvas = recorder.beginRecording(10, 10);
canvas->drawPicture(childWithBitmap);
sk_sp<SkPicture> parentPWB(recorder.finishRecordingAsPicture());
REPORTER_ASSERT(reporter, parentPWB->willPlayBackBitmaps()); // 1
}
{
SkCanvas* canvas = recorder.beginRecording(10, 10);
canvas->drawBitmap(bm, 0, 0);
canvas->drawPicture(childPlain);
sk_sp<SkPicture> parentWBP(recorder.finishRecordingAsPicture());
REPORTER_ASSERT(reporter, parentWBP->willPlayBackBitmaps()); // 1
}
{
SkCanvas* canvas = recorder.beginRecording(10, 10);
canvas->drawBitmap(bm, 0, 0);
canvas->drawPicture(childWithBitmap);
sk_sp<SkPicture> parentWBWB(recorder.finishRecordingAsPicture());
REPORTER_ASSERT(reporter, parentWBWB->willPlayBackBitmaps()); // 2
}
}
static void test_gen_id(skiatest::Reporter* reporter) {
SkPictureRecorder recorder;
recorder.beginRecording(0, 0);
sk_sp<SkPicture> empty(recorder.finishRecordingAsPicture());
// Empty pictures should still have a valid ID
REPORTER_ASSERT(reporter, empty->uniqueID() != SK_InvalidGenID);
SkCanvas* canvas = recorder.beginRecording(1, 1);
canvas->drawARGB(255, 255, 255, 255);
sk_sp<SkPicture> hasData(recorder.finishRecordingAsPicture());
// picture should have a non-zero id after recording
REPORTER_ASSERT(reporter, hasData->uniqueID() != SK_InvalidGenID);
// both pictures should have different ids
REPORTER_ASSERT(reporter, hasData->uniqueID() != empty->uniqueID());
}
static void test_typeface(skiatest::Reporter* reporter) {
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(10, 10);
SkPaint paint;
paint.setTypeface(SkTypeface::MakeFromName("Arial",
SkFontStyle::FromOldStyle(SkTypeface::kItalic)));
canvas->drawText("Q", 1, 0, 10, paint);
sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
SkDynamicMemoryWStream stream;
picture->serialize(&stream);
}
DEF_TEST(Picture, reporter) {
test_typeface(reporter);
#ifdef SK_DEBUG
test_deleting_empty_picture();
test_serializing_empty_picture();
#else
test_bad_bitmap();
#endif
test_unbalanced_save_restores(reporter);
test_peephole();
#if SK_SUPPORT_GPU
test_gpu_veto(reporter);
#endif
test_images_are_found_by_willPlayBackBitmaps(reporter);
test_analysis(reporter);
test_clip_bound_opt(reporter);
test_clip_expansion(reporter);
test_hierarchical(reporter);
test_gen_id(reporter);
test_cull_rect_reset(reporter);
}
static void draw_bitmaps(const SkBitmap bitmap, SkCanvas* canvas) {
const SkPaint paint;
const SkRect rect = { 5.0f, 5.0f, 8.0f, 8.0f };
const SkIRect irect = { 2, 2, 3, 3 };
int divs[] = { 2, 3 };
SkCanvas::Lattice lattice;
lattice.fXCount = lattice.fYCount = 2;
lattice.fXDivs = lattice.fYDivs = divs;
// Don't care what these record, as long as they're legal.
canvas->drawBitmap(bitmap, 0.0f, 0.0f, &paint);
canvas->drawBitmapRect(bitmap, rect, rect, &paint, SkCanvas::kStrict_SrcRectConstraint);
canvas->drawBitmapNine(bitmap, irect, rect, &paint);
canvas->drawBitmap(bitmap, 1, 1); // drawSprite
canvas->drawBitmapLattice(bitmap, lattice, rect, &paint);
}
static void test_draw_bitmaps(SkCanvas* canvas) {
SkBitmap empty;
draw_bitmaps(empty, canvas);
empty.setInfo(SkImageInfo::MakeN32Premul(10, 10));
draw_bitmaps(empty, canvas);
}
DEF_TEST(Picture_EmptyBitmap, r) {
SkPictureRecorder recorder;
test_draw_bitmaps(recorder.beginRecording(10, 10));
sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
}
DEF_TEST(Canvas_EmptyBitmap, r) {
SkBitmap dst;
dst.allocN32Pixels(10, 10);
SkCanvas canvas(dst);
test_draw_bitmaps(&canvas);
}
DEF_TEST(DontOptimizeSaveLayerDrawDrawRestore, reporter) {
// This test is from crbug.com/344987.
// The commands are:
// saveLayer with paint that modifies alpha
// drawBitmapRect
// drawBitmapRect
// restore
// The bug was that this structure was modified so that:
// - The saveLayer and restore were eliminated
// - The alpha was only applied to the first drawBitmapRectToRect
// This test draws blue and red squares inside a 50% transparent
// layer. Both colours should show up muted.
// When the bug is present, the red square (the second bitmap)
// shows upwith full opacity.
SkBitmap blueBM;
make_bm(&blueBM, 100, 100, SkColorSetARGB(255, 0, 0, 255), true);
SkBitmap redBM;
make_bm(&redBM, 100, 100, SkColorSetARGB(255, 255, 0, 0), true);
SkPaint semiTransparent;
semiTransparent.setAlpha(0x80);
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(100, 100);
canvas->drawARGB(0, 0, 0, 0);
canvas->saveLayer(0, &semiTransparent);
canvas->drawBitmap(blueBM, 25, 25);
canvas->drawBitmap(redBM, 50, 50);
canvas->restore();
sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
// Now replay the picture back on another canvas
// and check a couple of its pixels.
SkBitmap replayBM;
make_bm(&replayBM, 100, 100, SK_ColorBLACK, false);
SkCanvas replayCanvas(replayBM);
picture->playback(&replayCanvas);
replayCanvas.flush();
// With the bug present, at (55, 55) we would get a fully opaque red
// intead of a dark red.
REPORTER_ASSERT(reporter, replayBM.getColor(30, 30) == 0xff000080);
REPORTER_ASSERT(reporter, replayBM.getColor(55, 55) == 0xff800000);
}
struct CountingBBH : public SkBBoxHierarchy {
mutable int searchCalls;
SkRect rootBound;
CountingBBH(const SkRect& bound) : searchCalls(0), rootBound(bound) {}
void search(const SkRect& query, SkTDArray<int>* results) const override {
this->searchCalls++;
}
void insert(const SkRect[], int) override {}
virtual size_t bytesUsed() const override { return 0; }
SkRect getRootBound() const override { return rootBound; }
};
class SpoonFedBBHFactory : public SkBBHFactory {
public:
explicit SpoonFedBBHFactory(SkBBoxHierarchy* bbh) : fBBH(bbh) {}
SkBBoxHierarchy* operator()(const SkRect&) const override {
return SkRef(fBBH);
}
private:
SkBBoxHierarchy* fBBH;
};
// When the canvas clip covers the full picture, we don't need to call the BBH.
DEF_TEST(Picture_SkipBBH, r) {
SkRect bound = SkRect::MakeWH(320, 240);
CountingBBH bbh(bound);
SpoonFedBBHFactory factory(&bbh);
SkPictureRecorder recorder;
SkCanvas* c = recorder.beginRecording(bound, &factory);
// Record a few ops so we don't hit a small- or empty- picture optimization.
c->drawRect(bound, SkPaint());
c->drawRect(bound, SkPaint());
sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
SkCanvas big(640, 480), small(300, 200);
picture->playback(&big);
REPORTER_ASSERT(r, bbh.searchCalls == 0);
picture->playback(&small);
REPORTER_ASSERT(r, bbh.searchCalls == 1);
}
DEF_TEST(Picture_BitmapLeak, r) {
SkBitmap mut, immut;
mut.allocN32Pixels(300, 200);
immut.allocN32Pixels(300, 200);
immut.setImmutable();
SkASSERT(!mut.isImmutable());
SkASSERT(immut.isImmutable());
// No one can hold a ref on our pixels yet.
REPORTER_ASSERT(r, mut.pixelRef()->unique());
REPORTER_ASSERT(r, immut.pixelRef()->unique());
sk_sp<SkPicture> pic;
{
// we want the recorder to go out of scope before our subsequent checks, so we
// place it inside local braces.
SkPictureRecorder rec;
SkCanvas* canvas = rec.beginRecording(1920, 1200);
canvas->drawBitmap(mut, 0, 0);
canvas->drawBitmap(immut, 800, 600);
pic = rec.finishRecordingAsPicture();
}
// The picture shares the immutable pixels but copies the mutable ones.
REPORTER_ASSERT(r, mut.pixelRef()->unique());
REPORTER_ASSERT(r, !immut.pixelRef()->unique());
// When the picture goes away, it's just our bitmaps holding the refs.
pic = nullptr;
REPORTER_ASSERT(r, mut.pixelRef()->unique());
REPORTER_ASSERT(r, immut.pixelRef()->unique());
}
// getRecordingCanvas() should return a SkCanvas when recording, null when not recording.
DEF_TEST(Picture_getRecordingCanvas, r) {
SkPictureRecorder rec;
REPORTER_ASSERT(r, !rec.getRecordingCanvas());
for (int i = 0; i < 3; i++) {
rec.beginRecording(100, 100);
REPORTER_ASSERT(r, rec.getRecordingCanvas());
rec.finishRecordingAsPicture();
REPORTER_ASSERT(r, !rec.getRecordingCanvas());
}
}
DEF_TEST(MiniRecorderLeftHanging, r) {
// Any shader or other ref-counted effect will do just fine here.
SkPaint paint;
paint.setShader(SkShader::MakeColorShader(SK_ColorRED));
SkMiniRecorder rec;
REPORTER_ASSERT(r, rec.drawRect(SkRect::MakeWH(20,30), paint));
// Don't call rec.detachPicture(). Test succeeds by not asserting or leaking the shader.
}
DEF_TEST(Picture_preserveCullRect, r) {
SkPictureRecorder recorder;
SkCanvas* c = recorder.beginRecording(SkRect::MakeLTRB(1, 2, 3, 4));
c->clear(SK_ColorCYAN);
sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
SkDynamicMemoryWStream wstream;
picture->serialize(&wstream);
SkAutoTDelete<SkStream> rstream(wstream.detachAsStream());
sk_sp<SkPicture> deserializedPicture(SkPicture::MakeFromStream(rstream));
REPORTER_ASSERT(r, deserializedPicture != nullptr);
REPORTER_ASSERT(r, deserializedPicture->cullRect().left() == 1);
REPORTER_ASSERT(r, deserializedPicture->cullRect().top() == 2);
REPORTER_ASSERT(r, deserializedPicture->cullRect().right() == 3);
REPORTER_ASSERT(r, deserializedPicture->cullRect().bottom() == 4);
}
#if SK_SUPPORT_GPU
DEF_TEST(PictureGpuAnalyzer, r) {
SkPictureRecorder recorder;
{
SkCanvas* canvas = recorder.beginRecording(10, 10);
SkPaint paint;
SkScalar intervals [] = { 10, 20 };
paint.setPathEffect(SkDashPathEffect::Make(intervals, 2, 25));
for (int i = 0; i < 50; ++i) {
canvas->drawRect(SkRect::MakeWH(10, 10), paint);
}
}
sk_sp<SkPicture> vetoPicture(recorder.finishRecordingAsPicture());
SkPictureGpuAnalyzer analyzer;
REPORTER_ASSERT(r, analyzer.suitableForGpuRasterization());
analyzer.analyzePicture(vetoPicture.get());
REPORTER_ASSERT(r, !analyzer.suitableForGpuRasterization());
analyzer.reset();
REPORTER_ASSERT(r, analyzer.suitableForGpuRasterization());
recorder.beginRecording(10, 10)->drawPicture(vetoPicture);
sk_sp<SkPicture> nestedVetoPicture(recorder.finishRecordingAsPicture());
analyzer.analyzePicture(nestedVetoPicture.get());
REPORTER_ASSERT(r, !analyzer.suitableForGpuRasterization());
analyzer.reset();
const SkPath convexClip = make_convex_path();
const SkPath concaveClip = make_concave_path();
for (int i = 0; i < 50; ++i) {
analyzer.analyzeClipPath(convexClip, SkCanvas::kIntersect_Op, false);
analyzer.analyzeClipPath(convexClip, SkCanvas::kIntersect_Op, true);
analyzer.analyzeClipPath(concaveClip, SkCanvas::kIntersect_Op, false);
}
REPORTER_ASSERT(r, analyzer.suitableForGpuRasterization());
for (int i = 0; i < 50; ++i) {
analyzer.analyzeClipPath(concaveClip, SkCanvas::kIntersect_Op, true);
}
REPORTER_ASSERT(r, !analyzer.suitableForGpuRasterization());
}
#endif // SK_SUPPORT_GPU
///////////////////////////////////////////////////////////////////////////////////////////////////
// Disable until we properly fix https://bugs.chromium.org/p/skia/issues/detail?id=5548
#if 0
static void empty_ops(SkCanvas* canvas) {
}
static void clip_ops(SkCanvas* canvas) {
canvas->save();
canvas->clipRect(SkRect::MakeWH(20, 20));
canvas->restore();
}
static void matrix_ops(SkCanvas* canvas) {
canvas->save();
canvas->scale(2, 3);
canvas->restore();
}
static void matrixclip_ops(SkCanvas* canvas) {
canvas->save();
canvas->scale(2, 3);
canvas->clipRect(SkRect::MakeWH(20, 20));
canvas->restore();
}
typedef void (*CanvasProc)(SkCanvas*);
// Test the kReturnNullForEmpty_FinishFlag option when recording
//
DEF_TEST(Picture_RecordEmpty, r) {
const SkRect cull = SkRect::MakeWH(100, 100);
CanvasProc procs[] { empty_ops, clip_ops, matrix_ops, matrixclip_ops };
for (auto proc : procs) {
{
SkPictureRecorder rec;
proc(rec.beginRecording(cull));
sk_sp<SkPicture> pic = rec.finishRecordingAsPicture(0);
REPORTER_ASSERT(r, pic.get());
REPORTER_ASSERT(r, pic->approximateOpCount() == 0);
}
{
SkPictureRecorder rec;
proc(rec.beginRecording(cull));
sk_sp<SkPicture> pic = rec.finishRecordingAsPicture(
SkPictureRecorder::kReturnNullForEmpty_FinishFlag);
REPORTER_ASSERT(r, !pic.get());
}
{
SkPictureRecorder rec;
proc(rec.beginRecording(cull));
sk_sp<SkDrawable> dr = rec.finishRecordingAsDrawable(0);
REPORTER_ASSERT(r, dr.get());
}
{
SkPictureRecorder rec;
proc(rec.beginRecording(cull));
sk_sp<SkDrawable> dr = rec.finishRecordingAsDrawable(
SkPictureRecorder::kReturnNullForEmpty_FinishFlag);
REPORTER_ASSERT(r, !dr.get());
}
}
}
#endif