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Revert r3681 due to fixed point failures in tests.

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git-svn-id: http://skia.googlecode.com/svn/trunk@3684 2bbb7eff-a529-9590-31e7-b0007b416f81
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bsalomon@google.com 2012-04-16 14:41:02 +00:00
parent 0b26c15876
commit d0b95896d6
1 changed files with 0 additions and 142 deletions
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142
tests/MatrixTest.cpp
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@ -188,147 +188,6 @@ void test_matrix_max_stretch(skiatest::Reporter* reporter) {
}
}
// This function is extracted from src/gpu/SkGpuDevice.cpp,
// in order to make sure this function works correctly.
static bool isSimilarityTransformation(const SkMatrix& matrix,
SkScalar tol = SK_ScalarNearlyZero) {
if (matrix.isIdentity() || matrix.getType() == SkMatrix::kTranslate_Mask) {
return true;
}
if (matrix.hasPerspective()) {
return false;
}
SkScalar mx = matrix.get(SkMatrix::kMScaleX);
SkScalar sx = matrix.get(SkMatrix::kMSkewX);
SkScalar my = matrix.get(SkMatrix::kMScaleY);
SkScalar sy = matrix.get(SkMatrix::kMSkewY);
if (mx == 0 && sx == 0 && my == 0 && sy == 0) {
return false;
}
// it has scales or skews, but it could also be rotation, check it out.
SkVector vec[2];
vec[0].set(mx, sx);
vec[1].set(sy, my);
return SkScalarNearlyZero(vec[0].dot(vec[1]), SkScalarSquare(tol)) &&
SkScalarNearlyEqual(vec[0].lengthSqd(), vec[1].lengthSqd(),
SkScalarSquare(tol));
}
void test_matrix_is_similarity_transform(skiatest::Reporter* reporter) {
SkMatrix mat;
// identity
mat.setIdentity();
REPORTER_ASSERT(reporter, isSimilarityTransformation(mat));
// translation only
mat.reset();
mat.setTranslate(SkIntToScalar(100), SkIntToScalar(100));
REPORTER_ASSERT(reporter, isSimilarityTransformation(mat));
// scale with same size
mat.reset();
mat.setScale(SkIntToScalar(15), SkIntToScalar(15));
REPORTER_ASSERT(reporter, isSimilarityTransformation(mat));
// scale with one negative
mat.reset();
mat.setScale(SkIntToScalar(-15), SkIntToScalar(15));
REPORTER_ASSERT(reporter, isSimilarityTransformation(mat));
// scale with different size
mat.reset();
mat.setScale(SkIntToScalar(15), SkIntToScalar(20));
REPORTER_ASSERT(reporter, !isSimilarityTransformation(mat));
// scale with same size at a pivot point
mat.reset();
mat.setScale(SkIntToScalar(15), SkIntToScalar(15),
SkIntToScalar(2), SkIntToScalar(2));
REPORTER_ASSERT(reporter, isSimilarityTransformation(mat));
// scale with different size at a pivot point
mat.reset();
mat.setScale(SkIntToScalar(15), SkIntToScalar(20),
SkIntToScalar(2), SkIntToScalar(2));
REPORTER_ASSERT(reporter, !isSimilarityTransformation(mat));
// skew with same size
mat.reset();
mat.setSkew(SkIntToScalar(15), SkIntToScalar(15));
REPORTER_ASSERT(reporter, !isSimilarityTransformation(mat));
// skew with different size
mat.reset();
mat.setSkew(SkIntToScalar(15), SkIntToScalar(20));
REPORTER_ASSERT(reporter, !isSimilarityTransformation(mat));
// skew with same size at a pivot point
mat.reset();
mat.setSkew(SkIntToScalar(15), SkIntToScalar(15),
SkIntToScalar(2), SkIntToScalar(2));
REPORTER_ASSERT(reporter, !isSimilarityTransformation(mat));
// skew with different size at a pivot point
mat.reset();
mat.setSkew(SkIntToScalar(15), SkIntToScalar(20),
SkIntToScalar(2), SkIntToScalar(2));
REPORTER_ASSERT(reporter, !isSimilarityTransformation(mat));
// perspective x
mat.reset();
mat.setPerspX(SkScalarToPersp(SK_Scalar1 / 2));
REPORTER_ASSERT(reporter, !isSimilarityTransformation(mat));
// perspective y
mat.reset();
mat.setPerspY(SkScalarToPersp(SK_Scalar1 / 2));
REPORTER_ASSERT(reporter, !isSimilarityTransformation(mat));
// rotate
for (int angle = 0; angle < 360; ++angle) {
mat.reset();
mat.setRotate(SkIntToScalar(angle));
REPORTER_ASSERT(reporter, isSimilarityTransformation(mat));
}
// rotate + translate
mat.reset();
mat.setRotate(SkIntToScalar(30));
mat.postTranslate(SkIntToScalar(10), SkIntToScalar(20));
REPORTER_ASSERT(reporter, isSimilarityTransformation(mat));
// rotate + uniform scale
mat.reset();
mat.setRotate(SkIntToScalar(30));
mat.postScale(SkIntToScalar(2), SkIntToScalar(2));
REPORTER_ASSERT(reporter, isSimilarityTransformation(mat));
// rotate + non-uniform scale
mat.reset();
mat.setRotate(SkIntToScalar(30));
mat.postScale(SkIntToScalar(3), SkIntToScalar(2));
REPORTER_ASSERT(reporter, !isSimilarityTransformation(mat));
// all zero
mat.setAll(0, 0, 0, 0, 0, 0, 0, 0, 0);
REPORTER_ASSERT(reporter, !isSimilarityTransformation(mat));
// all zero except perspective
mat.setAll(0, 0, 0, 0, 0, 0, 0, 0, SK_Scalar1);
REPORTER_ASSERT(reporter, !isSimilarityTransformation(mat));
// scales zero, only skews
mat.setAll(0, SK_Scalar1, 0,
SK_Scalar1, 0, 0,
0, 0, SkMatrix::I()[8]);
REPORTER_ASSERT(reporter, isSimilarityTransformation(mat));
}
void TestMatrix(skiatest::Reporter* reporter) {
SkMatrix mat, inverse, iden1, iden2;
@ -440,7 +299,6 @@ void TestMatrix(skiatest::Reporter* reporter) {
#endif
test_matrix_max_stretch(reporter);
test_matrix_is_similarity_transform(reporter);
}
#include "TestClassDef.h"