/**
* Retrieves the final matrix that a transform needs to apply to its source coords.
*/
static SkMatrix get_transform_matrix(const GrPendingFragmentStage& stage,
bool useExplicitLocalCoords,
int transformIdx) {
const GrCoordTransform& coordTransform = stage.getProcessor()->coordTransform(transformIdx);
SkMatrix combined;
if (kLocal_GrCoordSet == coordTransform.sourceCoords()) {
// If we have explicit local coords then we shouldn't need a coord change.
const SkMatrix& ccm =
useExplicitLocalCoords ? SkMatrix::I() : stage.getCoordChangeMatrix();
combined.setConcat(coordTransform.getMatrix(), ccm);
} else {
combined = coordTransform.getMatrix();
}
if (coordTransform.reverseY()) {
// combined.postScale(1,-1);
// combined.postTranslate(0,1);
combined.set(SkMatrix::kMSkewY,
combined[SkMatrix::kMPersp0] - combined[SkMatrix::kMSkewY]);
combined.set(SkMatrix::kMScaleY,
combined[SkMatrix::kMPersp1] - combined[SkMatrix::kMScaleY]);
combined.set(SkMatrix::kMTransY,
combined[SkMatrix::kMPersp2] - combined[SkMatrix::kMTransY]);
}
return combined;
}
SkMatrix readMatrix(SkStream *stream)
{
SkMatrix matrix;
for (int i = 0; i < 9; i++)
matrix.set(i, stream->readScalar());
return matrix;
}
SkMatrix GrGLSLPrimitiveProcessor::GetTransformMatrix(const SkMatrix& localMatrix,
const GrCoordTransform& coordTransform) {
SkMatrix combined;
combined.setConcat(coordTransform.getMatrix(), localMatrix);
if (coordTransform.normalize()) {
combined.postIDiv(coordTransform.peekTexture()->width(),
coordTransform.peekTexture()->height());
}
if (coordTransform.reverseY()) {
// combined.postScale(1,-1);
// combined.postTranslate(0,1);
combined.set(SkMatrix::kMSkewY,
combined[SkMatrix::kMPersp0] - combined[SkMatrix::kMSkewY]);
combined.set(SkMatrix::kMScaleY,
combined[SkMatrix::kMPersp1] - combined[SkMatrix::kMScaleY]);
combined.set(SkMatrix::kMTransY,
combined[SkMatrix::kMPersp2] - combined[SkMatrix::kMTransY]);
}
return combined;
}
static inline SkMatrix
matrix_to_sk (const cairo_matrix_t& mat)
{
SkMatrix skm;
skm.reset ();
skm.set (SkMatrix::kMScaleX, SkFloatToScalar (mat.xx));
skm.set (SkMatrix::kMSkewX, SkFloatToScalar (mat.xy));
skm.set (SkMatrix::kMTransX, SkFloatToScalar (mat.x0));
skm.set (SkMatrix::kMSkewY, SkFloatToScalar (mat.yx));
skm.set (SkMatrix::kMScaleY, SkFloatToScalar (mat.yy));
skm.set (SkMatrix::kMTransY, SkFloatToScalar (mat.y0));
/*
skm[6] = SkFloatToScalar (0.0);
skm[7] = SkFloatToScalar (0.0);
skm[8] = SkFloatToScalar (1.0); -- this isn't right, it wants a magic value in there that it'll set itself. It wants Sk_Fract1 (2.30), not Sk_Scalar1
*/
return skm;
}
void SkCamera3D::doUpdate() const
{
SkUnit3D axis, zenith, cross;
fAxis.normalize(&axis);
{
SkScalar dot = SkUnit3D::Dot(*(const SkUnit3D*)(const void*)&fZenith, axis);
zenith.fX = fZenith.fX - SkUnitScalarMul(dot, axis.fX);
zenith.fY = fZenith.fY - SkUnitScalarMul(dot, axis.fY);
zenith.fZ = fZenith.fZ - SkUnitScalarMul(dot, axis.fZ);
(void)((SkPoint3D*)(void*)&zenith)->normalize(&zenith);
}
SkUnit3D::Cross(axis, zenith, &cross);
{
SkMatrix* orien = &fOrientation;
SkScalar x = fObserver.fX;
SkScalar y = fObserver.fY;
SkScalar z = fObserver.fZ;
orien->set(SkMatrix::kMScaleX, SkUnitScalarMul(x, axis.fX) - SkUnitScalarMul(z, cross.fX));
orien->set(SkMatrix::kMSkewX, SkUnitScalarMul(x, axis.fY) - SkUnitScalarMul(z, cross.fY));
orien->set(SkMatrix::kMTransX, SkUnitScalarMul(x, axis.fZ) - SkUnitScalarMul(z, cross.fZ));
orien->set(SkMatrix::kMSkewY, SkUnitScalarMul(y, axis.fX) - SkUnitScalarMul(z, zenith.fX));
orien->set(SkMatrix::kMScaleY, SkUnitScalarMul(y, axis.fY) - SkUnitScalarMul(z, zenith.fY));
orien->set(SkMatrix::kMTransY, SkUnitScalarMul(y, axis.fZ) - SkUnitScalarMul(z, zenith.fZ));
orien->set(SkMatrix::kMPersp0, axis.fX);
orien->set(SkMatrix::kMPersp1, axis.fY);
orien->set(SkMatrix::kMPersp2, axis.fZ);
}
}
static void setValues(JNIEnv* env, jobject clazz, jlong matrixHandle, jfloatArray values) {
SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
AutoJavaFloatArray autoValues(env, values, 9, kRO_JNIAccess);
const float* src = autoValues.ptr();
#ifdef SK_SCALAR_IS_FLOAT
for (int i = 0; i < 9; i++) {
matrix->set(i, src[i]);
}
#else
SkASSERT(false);
#endif
}
void Matrix4::copyTo(SkMatrix& v) const {
v.reset();
v.set(SkMatrix::kMScaleX, data[kScaleX]);
v.set(SkMatrix::kMSkewX, data[kSkewX]);
v.set(SkMatrix::kMTransX, data[kTranslateX]);
v.set(SkMatrix::kMSkewY, data[kSkewY]);
v.set(SkMatrix::kMScaleY, data[kScaleY]);
v.set(SkMatrix::kMTransY, data[kTranslateY]);
v.set(SkMatrix::kMPersp0, data[kPerspective0]);
v.set(SkMatrix::kMPersp1, data[kPerspective1]);
v.set(SkMatrix::kMPersp2, data[kPerspective2]);
}
void Matrix::NativeSetValues(
/* [in] */ Int64 matrixHandle,
/* [in] */ ArrayOf<Float>* values)
{
SkASSERT(values->GetLength() >= 9);
SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
// AutoJavaFloatArray autoValues(env, values, 9, kRO_JNIAccess);
const float* src = values->GetPayload();
#ifdef SK_SCALAR_IS_FLOAT
for (int i = 0; i < 9; i++) {
matrix->set(i, src[i]);
}
#else
SkASSERT(FALSE);
#endif
}
void draw(SkCanvas* canvas) {
SkMatrix m;
m.setIdentity();
m.set(SkMatrix::kMPersp0, -0.004f);
SkAutoCanvasRestore autoRestore(canvas, true);
canvas->translate(22, 144);
SkPaint black;
black.setAntiAlias(true);
black.setTextSize(24);
SkPaint gray = black;
gray.setColor(0xFF9f9f9f);
SkString string;
string.appendScalar(m.getPerspX());
canvas->drawString(string, 0, -72, gray);
canvas->concat(m);
canvas->drawString(string, 0, 0, black);
}
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;
}
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;
}
static void setup_canvas_from_MC_state(const SkMCState& state, SkCanvas* canvas) {
// reconstruct the matrix
SkMatrix matrix;
for (int i = 0; i < 9; i++) {
matrix.set(i, state.matrix[i]);
}
// reconstruct the clip
SkRegion clip;
for (int i = 0; i < state.clipRectCount; ++i) {
clip.op(SkIRect::MakeLTRB(state.clipRects[i].left,
state.clipRects[i].top,
state.clipRects[i].right,
state.clipRects[i].bottom),
SkRegion::kUnion_Op);
}
canvas->setMatrix(matrix);
canvas->setClipRegion(clip);
}
void draw(SkCanvas* canvas) {
SkPaint black;
black.setAntiAlias(true);
black.setTextSize(48);
SkPaint gray = black;
gray.setColor(0xFF9f9f9f);
SkScalar offset[] = { 1.5f, 1.5f, 20, 1.5f, 1.5f, 20, .03f, .01f, 2 };
for (int i : { SkMatrix::kMScaleX, SkMatrix::kMSkewX, SkMatrix::kMTransX,
SkMatrix::kMSkewY, SkMatrix::kMScaleY, SkMatrix::kMTransY,
SkMatrix::kMPersp0, SkMatrix::kMPersp1, SkMatrix::kMPersp2 } ) {
SkMatrix m;
m.setIdentity();
m.set(i, offset[i]);
SkAutoCanvasRestore autoRestore(canvas, true);
canvas->translate(22 + (i % 3) * 88, 44 + (i / 3) * 88);
canvas->drawString("&", 0, 0, gray);
canvas->concat(m);
canvas->drawString("&", 0, 0, black);
}
}
static void DrawRoundRect() {
#ifdef SK_SCALAR_IS_FIXED
bool ret = false;
SkPaint paint;
SkBitmap bitmap;
SkCanvas canvas;
SkMatrix matrix;
matrix.reset();
bitmap.setConfig(SkBitmap::kARGB_8888_Config, 1370, 812);
bitmap.allocPixels();
canvas.setBitmapDevice(bitmap);
// set up clipper
SkRect skclip;
skclip.set(SkIntToFixed(284), SkIntToFixed(40), SkIntToFixed(1370), SkIntToFixed(708));
ret = canvas.clipRect(skclip);
SkASSERT(ret);
matrix.set(SkMatrix::kMTransX, SkFloatToFixed(-1153.28));
matrix.set(SkMatrix::kMTransY, SkFloatToFixed(1180.50));
matrix.set(SkMatrix::kMScaleX, SkFloatToFixed(0.177171));
matrix.set(SkMatrix::kMScaleY, SkFloatToFixed(0.177043));
matrix.set(SkMatrix::kMSkewX, SkFloatToFixed(0.126968));
matrix.set(SkMatrix::kMSkewY, SkFloatToFixed(-0.126876));
matrix.set(SkMatrix::kMPersp0, SkFloatToFixed(0.0));
matrix.set(SkMatrix::kMPersp1, SkFloatToFixed(0.0));
ret = canvas.concat(matrix);
paint.setAntiAlias(true);
paint.setColor(0xb2202020);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(SkFloatToFixed(68.13));
SkRect r;
r.set(SkFloatToFixed(-313.714417), SkFloatToFixed(-4.826389), SkFloatToFixed(18014.447266), SkFloatToFixed(1858.154541));
canvas.drawRoundRect(r, SkFloatToFixed(91.756363), SkFloatToFixed(91.756363), paint);
#endif
}
static void DrawRoundRect(SkCanvas& canvas) {
bool ret = false;
SkPaint paint;
SkBitmap bitmap;
SkMatrix matrix;
matrix.reset();
bitmap.setConfig(SkBitmap::kARGB_8888_Config, 1370, 812);
bitmap.allocPixels();
#if 0
SkCanvas canvas;
canvas.setBitmapDevice(bitmap);
#endif
// set up clipper
SkRect skclip;
skclip.set(SkIntToScalar(284), SkIntToScalar(40), SkIntToScalar(1370), SkIntToScalar(708));
// ret = canvas.clipRect(skclip);
// SkASSERT(ret);
matrix.set(SkMatrix::kMTransX, SkFloatToScalar(-1153.28f));
matrix.set(SkMatrix::kMTransY, SkFloatToScalar(1180.50f));
matrix.set(SkMatrix::kMScaleX, SkFloatToScalar(0.177171f));
matrix.set(SkMatrix::kMScaleY, SkFloatToScalar(0.177043f));
matrix.set(SkMatrix::kMSkewX, SkFloatToScalar(0.126968f));
matrix.set(SkMatrix::kMSkewY, SkFloatToScalar(-0.126876f));
matrix.set(SkMatrix::kMPersp0, SkFloatToScalar(0.0f));
matrix.set(SkMatrix::kMPersp1, SkFloatToScalar(0.0f));
ret = canvas.concat(matrix);
paint.setAntiAlias(true);
paint.setColor(0xb2202020);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(SkFloatToScalar(68.13f));
SkRect r;
r.set(SkFloatToScalar(-313.714417f), SkFloatToScalar(-4.826389f), SkFloatToScalar(18014.447266f), SkFloatToScalar(1858.154541f));
canvas.drawRoundRect(r, SkFloatToScalar(91.756363f), SkFloatToScalar(91.756363f), paint);
}
DEF_TEST(Matrix, reporter) {
SkMatrix mat, inverse, iden1, iden2;
mat.reset();
mat.setTranslate(SK_Scalar1, SK_Scalar1);
REPORTER_ASSERT(reporter, mat.invert(&inverse));
iden1.setConcat(mat, inverse);
REPORTER_ASSERT(reporter, is_identity(iden1));
mat.setScale(SkIntToScalar(2), SkIntToScalar(4));
REPORTER_ASSERT(reporter, mat.invert(&inverse));
iden1.setConcat(mat, inverse);
REPORTER_ASSERT(reporter, is_identity(iden1));
test_flatten(reporter, mat);
mat.setScale(SK_Scalar1/2, SkIntToScalar(2));
REPORTER_ASSERT(reporter, mat.invert(&inverse));
iden1.setConcat(mat, inverse);
REPORTER_ASSERT(reporter, is_identity(iden1));
test_flatten(reporter, mat);
mat.setScale(SkIntToScalar(3), SkIntToScalar(5), SkIntToScalar(20), 0);
mat.postRotate(SkIntToScalar(25));
REPORTER_ASSERT(reporter, mat.invert(NULL));
REPORTER_ASSERT(reporter, mat.invert(&inverse));
iden1.setConcat(mat, inverse);
REPORTER_ASSERT(reporter, is_identity(iden1));
iden2.setConcat(inverse, mat);
REPORTER_ASSERT(reporter, is_identity(iden2));
test_flatten(reporter, mat);
test_flatten(reporter, iden2);
mat.setScale(0, SK_Scalar1);
REPORTER_ASSERT(reporter, !mat.invert(NULL));
REPORTER_ASSERT(reporter, !mat.invert(&inverse));
mat.setScale(SK_Scalar1, 0);
REPORTER_ASSERT(reporter, !mat.invert(NULL));
REPORTER_ASSERT(reporter, !mat.invert(&inverse));
// rectStaysRect test
{
static const struct {
SkScalar m00, m01, m10, m11;
bool mStaysRect;
}
gRectStaysRectSamples[] = {
{ 0, 0, 0, 0, false },
{ 0, 0, 0, SK_Scalar1, false },
{ 0, 0, SK_Scalar1, 0, false },
{ 0, 0, SK_Scalar1, SK_Scalar1, false },
{ 0, SK_Scalar1, 0, 0, false },
{ 0, SK_Scalar1, 0, SK_Scalar1, false },
{ 0, SK_Scalar1, SK_Scalar1, 0, true },
{ 0, SK_Scalar1, SK_Scalar1, SK_Scalar1, false },
{ SK_Scalar1, 0, 0, 0, false },
{ SK_Scalar1, 0, 0, SK_Scalar1, true },
{ SK_Scalar1, 0, SK_Scalar1, 0, false },
{ SK_Scalar1, 0, SK_Scalar1, SK_Scalar1, false },
{ SK_Scalar1, SK_Scalar1, 0, 0, false },
{ SK_Scalar1, SK_Scalar1, 0, SK_Scalar1, false },
{ SK_Scalar1, SK_Scalar1, SK_Scalar1, 0, false },
{ SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1, false }
};
for (size_t i = 0; i < SK_ARRAY_COUNT(gRectStaysRectSamples); i++) {
SkMatrix m;
m.reset();
m.set(SkMatrix::kMScaleX, gRectStaysRectSamples[i].m00);
m.set(SkMatrix::kMSkewX, gRectStaysRectSamples[i].m01);
m.set(SkMatrix::kMSkewY, gRectStaysRectSamples[i].m10);
m.set(SkMatrix::kMScaleY, gRectStaysRectSamples[i].m11);
REPORTER_ASSERT(reporter,
m.rectStaysRect() == gRectStaysRectSamples[i].mStaysRect);
}
}
mat.reset();
mat.set(SkMatrix::kMScaleX, SkIntToScalar(1));
mat.set(SkMatrix::kMSkewX, SkIntToScalar(2));
mat.set(SkMatrix::kMTransX, SkIntToScalar(3));
mat.set(SkMatrix::kMSkewY, SkIntToScalar(4));
mat.set(SkMatrix::kMScaleY, SkIntToScalar(5));
mat.set(SkMatrix::kMTransY, SkIntToScalar(6));
SkScalar affine[6];
REPORTER_ASSERT(reporter, mat.asAffine(affine));
#define affineEqual(e) affine[SkMatrix::kA##e] == mat.get(SkMatrix::kM##e)
REPORTER_ASSERT(reporter, affineEqual(ScaleX));
REPORTER_ASSERT(reporter, affineEqual(SkewY));
REPORTER_ASSERT(reporter, affineEqual(SkewX));
REPORTER_ASSERT(reporter, affineEqual(ScaleY));
REPORTER_ASSERT(reporter, affineEqual(TransX));
REPORTER_ASSERT(reporter, affineEqual(TransY));
#undef affineEqual
mat.set(SkMatrix::kMPersp1, SkScalarToPersp(SK_Scalar1 / 2));
REPORTER_ASSERT(reporter, !mat.asAffine(affine));
SkMatrix mat2;
mat2.reset();
mat.reset();
SkScalar zero = 0;
mat.set(SkMatrix::kMSkewX, -zero);
REPORTER_ASSERT(reporter, are_equal(reporter, mat, mat2));
mat2.reset();
mat.reset();
mat.set(SkMatrix::kMSkewX, SK_ScalarNaN);
mat2.set(SkMatrix::kMSkewX, SK_ScalarNaN);
REPORTER_ASSERT(reporter, !are_equal(reporter, mat, mat2));
test_matrix_min_max_scale(reporter);
test_matrix_is_similarity(reporter);
test_matrix_recttorect(reporter);
test_matrix_decomposition(reporter);
test_matrix_homogeneous(reporter);
}
void TestMatrix(skiatest::Reporter* reporter) {
SkMatrix mat, inverse, iden1, iden2;
mat.reset();
mat.setTranslate(SK_Scalar1, SK_Scalar1);
mat.invert(&inverse);
iden1.setConcat(mat, inverse);
REPORTER_ASSERT(reporter, is_identity(iden1));
mat.setScale(SkIntToScalar(2), SkIntToScalar(2));
mat.invert(&inverse);
iden1.setConcat(mat, inverse);
REPORTER_ASSERT(reporter, is_identity(iden1));
test_flatten(reporter, mat);
mat.setScale(SK_Scalar1/2, SK_Scalar1/2);
mat.invert(&inverse);
iden1.setConcat(mat, inverse);
REPORTER_ASSERT(reporter, is_identity(iden1));
test_flatten(reporter, mat);
mat.setScale(SkIntToScalar(3), SkIntToScalar(5), SkIntToScalar(20), 0);
mat.postRotate(SkIntToScalar(25));
REPORTER_ASSERT(reporter, mat.invert(NULL));
mat.invert(&inverse);
iden1.setConcat(mat, inverse);
REPORTER_ASSERT(reporter, is_identity(iden1));
iden2.setConcat(inverse, mat);
REPORTER_ASSERT(reporter, is_identity(iden2));
test_flatten(reporter, mat);
test_flatten(reporter, iden2);
// rectStaysRect test
{
static const struct {
SkScalar m00, m01, m10, m11;
bool mStaysRect;
}
gRectStaysRectSamples[] = {
{ 0, 0, 0, 0, false },
{ 0, 0, 0, SK_Scalar1, false },
{ 0, 0, SK_Scalar1, 0, false },
{ 0, 0, SK_Scalar1, SK_Scalar1, false },
{ 0, SK_Scalar1, 0, 0, false },
{ 0, SK_Scalar1, 0, SK_Scalar1, false },
{ 0, SK_Scalar1, SK_Scalar1, 0, true },
{ 0, SK_Scalar1, SK_Scalar1, SK_Scalar1, false },
{ SK_Scalar1, 0, 0, 0, false },
{ SK_Scalar1, 0, 0, SK_Scalar1, true },
{ SK_Scalar1, 0, SK_Scalar1, 0, false },
{ SK_Scalar1, 0, SK_Scalar1, SK_Scalar1, false },
{ SK_Scalar1, SK_Scalar1, 0, 0, false },
{ SK_Scalar1, SK_Scalar1, 0, SK_Scalar1, false },
{ SK_Scalar1, SK_Scalar1, SK_Scalar1, 0, false },
{ SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1, false }
};
for (size_t i = 0; i < SK_ARRAY_COUNT(gRectStaysRectSamples); i++) {
SkMatrix m;
m.reset();
m.set(SkMatrix::kMScaleX, gRectStaysRectSamples[i].m00);
m.set(SkMatrix::kMSkewX, gRectStaysRectSamples[i].m01);
m.set(SkMatrix::kMSkewY, gRectStaysRectSamples[i].m10);
m.set(SkMatrix::kMScaleY, gRectStaysRectSamples[i].m11);
REPORTER_ASSERT(reporter,
m.rectStaysRect() == gRectStaysRectSamples[i].mStaysRect);
}
}
mat.reset();
mat.set(SkMatrix::kMScaleX, SkIntToScalar(1));
mat.set(SkMatrix::kMSkewX, SkIntToScalar(2));
mat.set(SkMatrix::kMTransX, SkIntToScalar(3));
mat.set(SkMatrix::kMSkewY, SkIntToScalar(4));
mat.set(SkMatrix::kMScaleY, SkIntToScalar(5));
mat.set(SkMatrix::kMTransY, SkIntToScalar(6));
SkScalar affine[6];
REPORTER_ASSERT(reporter, mat.asAffine(affine));
#define affineEqual(e) affine[SkMatrix::kA##e] == mat.get(SkMatrix::kM##e)
REPORTER_ASSERT(reporter, affineEqual(ScaleX));
REPORTER_ASSERT(reporter, affineEqual(SkewY));
REPORTER_ASSERT(reporter, affineEqual(SkewX));
REPORTER_ASSERT(reporter, affineEqual(ScaleY));
REPORTER_ASSERT(reporter, affineEqual(TransX));
REPORTER_ASSERT(reporter, affineEqual(TransY));
#undef affineEqual
mat.set(SkMatrix::kMPersp1, SkScalarToPersp(SK_Scalar1 / 2));
REPORTER_ASSERT(reporter, !mat.asAffine(affine));
SkMatrix mat2;
mat2.reset();
mat.reset();
SkScalar zero = 0;
mat.set(SkMatrix::kMSkewX, -zero);
REPORTER_ASSERT(reporter, are_equal(reporter, mat, mat2));
mat2.reset();
mat.reset();
mat.set(SkMatrix::kMSkewX, SK_ScalarNaN);
mat2.set(SkMatrix::kMSkewX, SK_ScalarNaN);
// fixed pt doesn't have the property that NaN does not equal itself.
#ifdef SK_SCALAR_IS_FIXED
REPORTER_ASSERT(reporter, are_equal(reporter, mat, mat2));
#else
REPORTER_ASSERT(reporter, !are_equal(reporter, mat, mat2));
#endif
test_matrix_max_stretch(reporter);
}
void TestMatrix(skiatest::Reporter* reporter) {
SkMatrix mat, inverse, iden1, iden2;
mat.reset();
mat.setTranslate(SK_Scalar1, SK_Scalar1);
mat.invert(&inverse);
iden1.setConcat(mat, inverse);
REPORTER_ASSERT(reporter, is_identity(iden1));
mat.setScale(SkIntToScalar(2), SkIntToScalar(2));
mat.invert(&inverse);
iden1.setConcat(mat, inverse);
REPORTER_ASSERT(reporter, is_identity(iden1));
test_flatten(reporter, mat);
mat.setScale(SK_Scalar1/2, SK_Scalar1/2);
mat.invert(&inverse);
iden1.setConcat(mat, inverse);
REPORTER_ASSERT(reporter, is_identity(iden1));
test_flatten(reporter, mat);
mat.setScale(SkIntToScalar(3), SkIntToScalar(5), SkIntToScalar(20), 0);
mat.postRotate(SkIntToScalar(25));
REPORTER_ASSERT(reporter, mat.invert(NULL));
mat.invert(&inverse);
iden1.setConcat(mat, inverse);
REPORTER_ASSERT(reporter, is_identity(iden1));
iden2.setConcat(inverse, mat);
REPORTER_ASSERT(reporter, is_identity(iden2));
test_flatten(reporter, mat);
test_flatten(reporter, iden2);
// rectStaysRect test
{
static const struct {
SkScalar m00, m01, m10, m11;
bool mStaysRect;
}
gRectStaysRectSamples[] = {
{ 0, 0, 0, 0, false },
{ 0, 0, 0, SK_Scalar1, false },
{ 0, 0, SK_Scalar1, 0, false },
{ 0, 0, SK_Scalar1, SK_Scalar1, false },
{ 0, SK_Scalar1, 0, 0, false },
{ 0, SK_Scalar1, 0, SK_Scalar1, false },
{ 0, SK_Scalar1, SK_Scalar1, 0, true },
{ 0, SK_Scalar1, SK_Scalar1, SK_Scalar1, false },
{ SK_Scalar1, 0, 0, 0, false },
{ SK_Scalar1, 0, 0, SK_Scalar1, true },
{ SK_Scalar1, 0, SK_Scalar1, 0, false },
{ SK_Scalar1, 0, SK_Scalar1, SK_Scalar1, false },
{ SK_Scalar1, SK_Scalar1, 0, 0, false },
{ SK_Scalar1, SK_Scalar1, 0, SK_Scalar1, false },
{ SK_Scalar1, SK_Scalar1, SK_Scalar1, 0, false },
{ SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1, false }
};
for (size_t i = 0; i < SK_ARRAY_COUNT(gRectStaysRectSamples); i++) {
SkMatrix m;
m.reset();
m.set(SkMatrix::kMScaleX, gRectStaysRectSamples[i].m00);
m.set(SkMatrix::kMSkewX, gRectStaysRectSamples[i].m01);
m.set(SkMatrix::kMSkewY, gRectStaysRectSamples[i].m10);
m.set(SkMatrix::kMScaleY, gRectStaysRectSamples[i].m11);
REPORTER_ASSERT(reporter,
m.rectStaysRect() == gRectStaysRectSamples[i].mStaysRect);
}
}
}