void onDraw(SkCanvas* canvas) override {
// There's a black pixel at 40, 40 for reference.
canvas->drawPoint(40.0f, 40.0f, SK_ColorBLACK);
// Two reference images.
canvas->translate(50.0f, 50.0f);
drawTestCase(canvas, 1.0f);
canvas->translate(0.0f, 50.0f);
drawTestCase(canvas, 3.0f);
// Uniform scaling test.
canvas->translate(0.0f, 100.0f);
canvas->save();
canvas->scale(3.0f, 3.0f);
drawTestCase(canvas, 1.0f);
canvas->restore();
// Non-uniform scaling test.
canvas->translate(0.0f, 100.0f);
canvas->save();
canvas->scale(3.0f, 6.0f);
drawTestCase(canvas, 1.0f);
canvas->restore();
// Skew test.
canvas->translate(0.0f, 80.0f);
canvas->save();
canvas->scale(3.0f, 3.0f);
SkMatrix skew;
skew.setIdentity();
skew.setSkewX(8.0f / 25.0f);
skew.setSkewY(2.0f / 25.0f);
canvas->concat(skew);
drawTestCase(canvas, 1.0f);
canvas->restore();
// Perspective test.
canvas->translate(0.0f, 80.0f);
canvas->save();
SkMatrix perspective;
perspective.setIdentity();
perspective.setPerspX(-SkScalarInvert(340));
perspective.setSkewX(8.0f / 25.0f);
perspective.setSkewY(2.0f / 25.0f);
canvas->concat(perspective);
drawTestCase(canvas, 1.0f);
canvas->restore();
}
static Sink* create_via(const char* tag, Sink* wrapped) {
#define VIA(t, via, ...) if (0 == strcmp(t, tag)) { return new via(__VA_ARGS__); }
VIA("twice", ViaTwice, wrapped);
VIA("pipe", ViaPipe, wrapped);
VIA("serialize", ViaSerialization, wrapped);
VIA("2ndpic", ViaSecondPicture, wrapped);
VIA("sp", ViaSingletonPictures, wrapped);
VIA("tiles", ViaTiles, 256, 256, nullptr, wrapped);
VIA("tiles_rt", ViaTiles, 256, 256, new SkRTreeFactory, wrapped);
if (FLAGS_matrix.count() == 4) {
SkMatrix m;
m.reset();
m.setScaleX((SkScalar)atof(FLAGS_matrix[0]));
m.setSkewX ((SkScalar)atof(FLAGS_matrix[1]));
m.setSkewY ((SkScalar)atof(FLAGS_matrix[2]));
m.setScaleY((SkScalar)atof(FLAGS_matrix[3]));
VIA("matrix", ViaMatrix, m, wrapped);
VIA("upright", ViaUpright, m, wrapped);
}
#ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
VIA("androidsdk", ViaAndroidSDK, wrapped);
#endif
#undef VIA
return nullptr;
}
virtual void onDraw(SkCanvas* canvas) {
SkPoint pts[2] = {
{ 0, 0 },
{ SkIntToScalar(100), SkIntToScalar(100) }
};
SkShader::TileMode tm = SkShader::kClamp_TileMode;
SkRect r = { 0, 0, SkIntToScalar(100), SkIntToScalar(100) };
SkPaint paint;
paint.setAntiAlias(true);
canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
for (size_t i = 0; i < SK_ARRAY_COUNT(gGradData); i++) {
canvas->save();
for (size_t j = 0; j < SK_ARRAY_COUNT(gGradMakers); j++) {
SkShader* shader = gGradMakers[j](pts, gGradData[i], tm, NULL);
// apply an increasing y perspective as we move to the right
SkMatrix perspective;
perspective.setIdentity();
perspective.setPerspY(SkScalarDiv(SkIntToScalar((unsigned) i+1),
SkIntToScalar(500)));
perspective.setSkewX(SkScalarDiv(SkIntToScalar((unsigned) i+1),
SkIntToScalar(10)));
shader->setLocalMatrix(perspective);
paint.setShader(shader);
canvas->drawRect(r, paint);
shader->unref();
canvas->translate(0, SkIntToScalar(120));
}
canvas->restore();
canvas->translate(SkIntToScalar(120), 0);
}
}
void onDraw(int loops, SkCanvas* canvas) override {
SkPaint paint;
paint.setAntiAlias(fAA);
paint.setBlendMode(fMode);
SkColor color = start_color(fColorType);
int w = this->getSize().x();
int h = this->getSize().y();
static const SkScalar kRectW = 25.1f;
static const SkScalar kRectH = 25.9f;
if (fColorType == kShaderOpaque_ColorType) {
// The only requirement for the shader is that it requires local coordinates
SkPoint pts[2] = { {0.0f, 0.0f}, {kRectW, kRectH} };
SkColor colors[] = { color, SK_ColorBLUE };
paint.setShader(SkGradientShader::MakeLinear(pts, colors, nullptr, 2,
SkTileMode::kClamp));
}
SkMatrix rotate;
// This value was chosen so that we frequently hit the axis-aligned case.
rotate.setRotate(30.f, kRectW / 2, kRectH / 2);
SkMatrix m = rotate;
SkScalar tx = 0, ty = 0;
if (fPerspective) {
// Apply some fixed perspective to change how ops may draw the rects
SkMatrix perspective;
perspective.setIdentity();
perspective.setPerspX(1e-4f);
perspective.setPerspY(1e-3f);
perspective.setSkewX(0.1f);
canvas->concat(perspective);
}
for (int i = 0; i < loops; ++i) {
canvas->save();
canvas->translate(tx, ty);
canvas->concat(m);
paint.setColor(color);
color = advance_color(color, fColorType, i);
canvas->drawRect(SkRect::MakeWH(kRectW, kRectH), paint);
canvas->restore();
tx += kRectW + 2;
if (tx > w) {
tx = 0;
ty += kRectH + 2;
if (ty > h) {
ty = 0;
}
}
m.postConcat(rotate);
}
}
virtual void onDraw(SkCanvas* canvas) {
SkMatrix perspective;
perspective.setIdentity();
perspective.setPerspY(SkScalarDiv(SK_Scalar1, SkIntToScalar(1000)));
perspective.setSkewX(SkScalarDiv(SkIntToScalar(8), SkIntToScalar(25)));
canvas->concat(perspective);
INHERITED::onDraw(canvas);
}
void draw(SkCanvas* canvas) {
SkPaint paint;
paint.setAntiAlias(true);
paint.setTextSize(24);
canvas->drawString("normal", 12, 24, paint);
SkMatrix matrix;
matrix.setIdentity();
matrix.setSkewX(-.7f);
canvas->concat(matrix);
canvas->drawString("x skew", 36, 48, paint);
}
void onOnceBeforeDraw() override {
fPath.moveTo(69.7030518991886f, 0);
fPath.cubicTo( 69.7030518991886f, 21.831149999999997f,
58.08369508178456f, 43.66448333333333f, 34.8449814469765f, 65.5f);
fPath.cubicTo( 11.608591683531916f, 87.33115f, -0.010765133872116195f, 109.16448333333332f,
-0.013089005235602302f, 131);
fPath.close();
fFlipped = fPath;
SkMatrix matrix;
matrix.reset();
matrix.setScaleX(0);
matrix.setScaleY(0);
matrix.setSkewX(1);
matrix.setSkewY(1);
fFlipped.transform(matrix);
}
AffineTransform::operator SkMatrix() const
{
SkMatrix result;
result.setScaleX(WebCoreDoubleToSkScalar(a()));
result.setSkewX(WebCoreDoubleToSkScalar(c()));
result.setTranslateX(WebCoreDoubleToSkScalar(e()));
result.setScaleY(WebCoreDoubleToSkScalar(d()));
result.setSkewY(WebCoreDoubleToSkScalar(b()));
result.setTranslateY(WebCoreDoubleToSkScalar(f()));
// FIXME: Set perspective properly.
result.setPerspX(0);
result.setPerspY(0);
result.set(SkMatrix::kMPersp2, SK_Scalar1);
return result;
}
SkMatrix affineTransformToSkMatrix(const AffineTransform& source)
{
SkMatrix result;
result.setScaleX(WebCoreDoubleToSkScalar(source.a()));
result.setSkewX(WebCoreDoubleToSkScalar(source.c()));
result.setTranslateX(WebCoreDoubleToSkScalar(source.e()));
result.setScaleY(WebCoreDoubleToSkScalar(source.d()));
result.setSkewY(WebCoreDoubleToSkScalar(source.b()));
result.setTranslateY(WebCoreDoubleToSkScalar(source.f()));
// FIXME: Set perspective properly.
result.setPerspX(0);
result.setPerspY(0);
result.set(SkMatrix::kMPersp2, SK_Scalar1);
return result;
}
SkMatrix makeMatrix() {
SkMatrix matrix;
matrix.reset();
RandomSetMatrix setMatrix = (RandomSetMatrix) fRand.nextRangeU(0, kRandomSetMatrix_Last);
if (fPrintName) {
SkDebugf("%.*s%s\n", fPathDepth * 3, fTab, gRandomSetMatrixNames[setMatrix]);
}
switch (setMatrix) {
case kSetIdentity:
break;
case kSetTranslateX:
matrix.setTranslateX(makeScalar());
break;
case kSetTranslateY:
matrix.setTranslateY(makeScalar());
break;
case kSetTranslate:
matrix.setTranslate(makeScalar(), makeScalar());
break;
case kSetScaleX:
matrix.setScaleX(makeScalar());
break;
case kSetScaleY:
matrix.setScaleY(makeScalar());
break;
case kSetScale:
matrix.setScale(makeScalar(), makeScalar());
break;
case kSetScaleTranslate:
matrix.setScale(makeScalar(), makeScalar(), makeScalar(), makeScalar());
break;
case kSetSkewX:
matrix.setSkewX(makeScalar());
break;
case kSetSkewY:
matrix.setSkewY(makeScalar());
break;
case kSetSkew:
matrix.setSkew(makeScalar(), makeScalar());
break;
case kSetSkewTranslate:
matrix.setSkew(makeScalar(), makeScalar(), makeScalar(), makeScalar());
break;
case kSetRotate:
matrix.setRotate(makeScalar());
break;
case kSetRotateTranslate:
matrix.setRotate(makeScalar(), makeScalar(), makeScalar());
break;
case kSetPerspectiveX:
matrix.setPerspX(makeScalar());
break;
case kSetPerspectiveY:
matrix.setPerspY(makeScalar());
break;
case kSetAll:
matrix.setAll(makeScalar(), makeScalar(), makeScalar(),
makeScalar(), makeScalar(), makeScalar(),
makeScalar(), makeScalar(), makeScalar());
break;
}
return matrix;
}
// Called to test various transforms on a single SkRRect.
static void test_transform_helper(skiatest::Reporter* reporter, const SkRRect& orig) {
SkRRect dst;
dst.setEmpty();
// The identity matrix will duplicate the rrect.
bool success = orig.transform(SkMatrix::I(), &dst);
REPORTER_ASSERT(reporter, success);
REPORTER_ASSERT(reporter, orig == dst);
// Skew and Perspective make transform fail.
SkMatrix matrix;
matrix.reset();
matrix.setSkewX(SkIntToScalar(2));
assert_transform_failure(reporter, orig, matrix);
matrix.reset();
matrix.setSkewY(SkIntToScalar(3));
assert_transform_failure(reporter, orig, matrix);
matrix.reset();
matrix.setPerspX(4);
assert_transform_failure(reporter, orig, matrix);
matrix.reset();
matrix.setPerspY(5);
assert_transform_failure(reporter, orig, matrix);
// Rotation fails.
matrix.reset();
matrix.setRotate(SkIntToScalar(90));
assert_transform_failure(reporter, orig, matrix);
matrix.setRotate(SkIntToScalar(37));
assert_transform_failure(reporter, orig, matrix);
// Translate will keep the rect moved, but otherwise the same.
matrix.reset();
SkScalar translateX = SkIntToScalar(32);
SkScalar translateY = SkIntToScalar(15);
matrix.setTranslateX(translateX);
matrix.setTranslateY(translateY);
dst.setEmpty();
success = orig.transform(matrix, &dst);
REPORTER_ASSERT(reporter, success);
for (int i = 0; i < 4; ++i) {
REPORTER_ASSERT(reporter,
orig.radii((SkRRect::Corner) i) == dst.radii((SkRRect::Corner) i));
}
REPORTER_ASSERT(reporter, orig.rect().width() == dst.rect().width());
REPORTER_ASSERT(reporter, orig.rect().height() == dst.rect().height());
REPORTER_ASSERT(reporter, dst.rect().left() == orig.rect().left() + translateX);
REPORTER_ASSERT(reporter, dst.rect().top() == orig.rect().top() + translateY);
// Keeping the translation, but adding skew will make transform fail.
matrix.setSkewY(SkIntToScalar(7));
assert_transform_failure(reporter, orig, matrix);
// Scaling in -x will flip the round rect horizontally.
matrix.reset();
matrix.setScaleX(SkIntToScalar(-1));
dst.setEmpty();
success = orig.transform(matrix, &dst);
REPORTER_ASSERT(reporter, success);
{
GET_RADII;
// Radii have swapped in x.
REPORTER_ASSERT(reporter, origUL == dstUR);
REPORTER_ASSERT(reporter, origUR == dstUL);
REPORTER_ASSERT(reporter, origLR == dstLL);
REPORTER_ASSERT(reporter, origLL == dstLR);
}
// Width and height remain the same.
REPORTER_ASSERT(reporter, orig.rect().width() == dst.rect().width());
REPORTER_ASSERT(reporter, orig.rect().height() == dst.rect().height());
// Right and left have swapped (sort of)
REPORTER_ASSERT(reporter, orig.rect().right() == -dst.rect().left());
// Top has stayed the same.
REPORTER_ASSERT(reporter, orig.rect().top() == dst.rect().top());
// Keeping the scale, but adding a persp will make transform fail.
matrix.setPerspX(7);
assert_transform_failure(reporter, orig, matrix);
// Scaling in -y will flip the round rect vertically.
matrix.reset();
matrix.setScaleY(SkIntToScalar(-1));
dst.setEmpty();
success = orig.transform(matrix, &dst);
REPORTER_ASSERT(reporter, success);
{
GET_RADII;
// Radii have swapped in y.
REPORTER_ASSERT(reporter, origUL == dstLL);
REPORTER_ASSERT(reporter, origUR == dstLR);
REPORTER_ASSERT(reporter, origLR == dstUR);
REPORTER_ASSERT(reporter, origLL == dstUL);
}
// Width and height remain the same.
REPORTER_ASSERT(reporter, orig.rect().width() == dst.rect().width());
REPORTER_ASSERT(reporter, orig.rect().height() == dst.rect().height());
// Top and bottom have swapped (sort of)
REPORTER_ASSERT(reporter, orig.rect().top() == -dst.rect().bottom());
// Left has stayed the same.
REPORTER_ASSERT(reporter, orig.rect().left() == dst.rect().left());
// Scaling in -x and -y will swap in both directions.
matrix.reset();
matrix.setScaleY(SkIntToScalar(-1));
matrix.setScaleX(SkIntToScalar(-1));
dst.setEmpty();
success = orig.transform(matrix, &dst);
REPORTER_ASSERT(reporter, success);
{
GET_RADII;
REPORTER_ASSERT(reporter, origUL == dstLR);
REPORTER_ASSERT(reporter, origUR == dstLL);
REPORTER_ASSERT(reporter, origLR == dstUL);
REPORTER_ASSERT(reporter, origLL == dstUR);
}
// Width and height remain the same.
REPORTER_ASSERT(reporter, orig.rect().width() == dst.rect().width());
REPORTER_ASSERT(reporter, orig.rect().height() == dst.rect().height());
REPORTER_ASSERT(reporter, orig.rect().top() == -dst.rect().bottom());
REPORTER_ASSERT(reporter, orig.rect().right() == -dst.rect().left());
// Scale in both directions.
SkScalar xScale = SkIntToScalar(3);
SkScalar yScale = 3.2f;
matrix.reset();
matrix.setScaleX(xScale);
matrix.setScaleY(yScale);
dst.setEmpty();
success = orig.transform(matrix, &dst);
REPORTER_ASSERT(reporter, success);
// Radii are scaled.
for (int i = 0; i < 4; ++i) {
REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst.radii((SkRRect::Corner) i).fX,
SkScalarMul(orig.radii((SkRRect::Corner) i).fX, xScale)));
REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst.radii((SkRRect::Corner) i).fY,
SkScalarMul(orig.radii((SkRRect::Corner) i).fY, yScale)));
}
REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst.rect().width(),
SkScalarMul(orig.rect().width(), xScale)));
REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst.rect().height(),
SkScalarMul(orig.rect().height(), yScale)));
REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst.rect().left(),
SkScalarMul(orig.rect().left(), xScale)));
REPORTER_ASSERT(reporter, SkScalarNearlyEqual(dst.rect().top(),
SkScalarMul(orig.rect().top(), yScale)));
}
void SkSVGPaint::setSave(SkSVGParser& parser) {
SkTDArray<SkString*> clips;
SkSVGPaint* walking = parser.fHead;
int index;
SkMatrix sum;
sum.reset();
while (walking != NULL) {
for (index = kInitial + 1; index < kTerminal; index++) {
SkString* lastAttr = (*walking)[index];
if (lastAttr->size() == 0)
continue;
if (index == kTransform) {
const char* str = lastAttr->c_str();
SkASSERT(strncmp(str, "matrix(", 7) == 0);
str += 6;
const char* strEnd = strrchr(str, ')');
SkASSERT(strEnd != NULL);
SkString mat(str, strEnd - str);
SkSVGParser::ConvertToArray(mat);
SkScalar values[6];
SkParse::FindScalars(mat.c_str() + 1, values, 6);
SkMatrix matrix;
matrix.reset();
matrix.setScaleX(values[0]);
matrix.setSkewY(values[1]);
matrix.setSkewX(values[2]);
matrix.setScaleY(values[3]);
matrix.setTranslateX(values[4]);
matrix.setTranslateY(values[5]);
sum.setConcat(matrix, sum);
continue;
}
if ( index == kClipPath)
*clips.insert(0) = lastAttr;
}
walking = walking->fNext;
}
if ((sum == parser.fLastTransform) == false) {
SkMatrix inverse;
bool success = parser.fLastTransform.invert(&inverse);
SkASSERT(success == true);
SkMatrix output;
output.setConcat(inverse, sum);
parser.fLastTransform = sum;
SkString outputStr;
outputStr.appendUnichar('[');
outputStr.appendScalar(output.getScaleX());
outputStr.appendUnichar(',');
outputStr.appendScalar(output.getSkewX());
outputStr.appendUnichar(',');
outputStr.appendScalar(output.getTranslateX());
outputStr.appendUnichar(',');
outputStr.appendScalar(output.getSkewY());
outputStr.appendUnichar(',');
outputStr.appendScalar(output.getScaleY());
outputStr.appendUnichar(',');
outputStr.appendScalar(output.getTranslateY());
outputStr.appendUnichar(',');
outputStr.appendScalar(output.getPerspX());
outputStr.appendUnichar(',');
outputStr.appendScalar(output.getPerspY());
outputStr.append(",1]");
parser._startElement("matrix");
parser._addAttributeLen("matrix", outputStr.c_str(), outputStr.size());
parser._endElement();
}
#if 0 // incomplete
if (parser.fTransformClips.size() > 0) {
// need to reset the clip when the 'g' scope is ended
parser._startElement("add");
const char* start = strchr(current->f_clipPath.c_str(), '#') + 1;
SkASSERT(start);
parser._addAttributeLen("use", start, strlen(start) - 1);
parser._endElement(); // clip
}
#endif
}