Add base types for path ops

tests/PathOpsDRectTest.cpp

+/*
+ * 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 "SkPathOpsCubic.h"
+#include "SkPathOpsLine.h"
+#include "SkPathOpsQuad.h"
+#include "SkPathOpsRect.h"
+#include "Test.h"
+
+static const SkDLine lineTests[] = {
+    {{{2, 1}, {2, 1}}},
+    {{{2, 1}, {1, 1}}},
+    {{{2, 1}, {2, 2}}},
+    {{{1, 1}, {2, 2}}},
+    {{{3, 0}, {2, 1}}},
+    {{{3, 2}, {1, 1}}},
+};
+
+static const SkDQuad quadTests[] = {
+    {{{1, 1}, {2, 1}, {0, 2}}},
+    {{{0, 0}, {1, 1}, {3, 1}}},
+    {{{2, 0}, {1, 1}, {2, 2}}},
+    {{{4, 0}, {0, 1}, {4, 2}}},
+    {{{0, 0}, {0, 1}, {1, 1}}},
+};
+
+static const SkDCubic cubicTests[] = {
+    {{{2, 0}, {3, 1}, {2, 2}, {1, 1}}},
+    {{{3, 1}, {2, 2}, {1, 1}, {2, 0}}},
+    {{{3, 0}, {2, 1}, {3, 2}, {1, 1}}},
+};
+
+static const size_t lineTests_count = sizeof(lineTests) / sizeof(lineTests[0]);
+static const size_t quadTests_count = sizeof(quadTests) / sizeof(quadTests[0]);
+static const size_t cubicTests_count = sizeof(cubicTests) / sizeof(cubicTests[0]);
+
+static void DRectTest(skiatest::Reporter* reporter) {
+    size_t index;
+    SkDRect rect, rect2;
+    for (index = 0; index < lineTests_count; ++index) {
+        const SkDLine& line = lineTests[index];
+        rect.setBounds(line);
+        REPORTER_ASSERT(reporter, rect.fLeft == SkTMin(line[0].fX, line[1].fX));
+        REPORTER_ASSERT(reporter, rect.fTop == SkTMin(line[0].fY, line[1].fY));
+        REPORTER_ASSERT(reporter, rect.fRight == SkTMax(line[0].fX, line[1].fX));
+        REPORTER_ASSERT(reporter, rect.fBottom == SkTMax(line[0].fY, line[1].fY));
+        rect2.set(line[0]);
+        rect2.add(line[1]);
+        REPORTER_ASSERT(reporter, rect2.fLeft == SkTMin(line[0].fX, line[1].fX));
+        REPORTER_ASSERT(reporter, rect2.fTop == SkTMin(line[0].fY, line[1].fY));
+        REPORTER_ASSERT(reporter, rect2.fRight == SkTMax(line[0].fX, line[1].fX));
+        REPORTER_ASSERT(reporter, rect2.fBottom == SkTMax(line[0].fY, line[1].fY));
+        REPORTER_ASSERT(reporter, rect.contains(line[0]));
+        REPORTER_ASSERT(reporter, rect.intersects(&rect2));
+    }
+    for (index = 0; index < quadTests_count; ++index) {
+        const SkDQuad& quad = quadTests[index];
+        rect.setRawBounds(quad);
+        REPORTER_ASSERT(reporter, rect.fLeft == SkTMin(quad[0].fX, SkTMin(quad[1].fX, quad[2].fX)));
+        REPORTER_ASSERT(reporter, rect.fTop == SkTMin(quad[0].fY, SkTMin(quad[1].fY, quad[2].fY)));
+        REPORTER_ASSERT(reporter, rect.fRight == SkTMax(quad[0].fX,
+                SkTMax(quad[1].fX, quad[2].fX)));
+        REPORTER_ASSERT(reporter, rect.fBottom == SkTMax(quad[0].fY,
+                SkTMax(quad[1].fY, quad[2].fY)));
+        rect2.setBounds(quad);
+        REPORTER_ASSERT(reporter, rect.intersects(&rect2));
+        // FIXME: add a recursive box subdivision method to verify that tight bounds is correct
+        SkDPoint leftTop = {rect2.fLeft, rect2.fTop};
+        REPORTER_ASSERT(reporter, rect.contains(leftTop));
+        SkDPoint rightBottom = {rect2.fRight, rect2.fBottom};
+        REPORTER_ASSERT(reporter, rect.contains(rightBottom));
+    }
+    for (index = 0; index < cubicTests_count; ++index) {
+        const SkDCubic& cubic = cubicTests[index];
+        rect.setRawBounds(cubic);
+        REPORTER_ASSERT(reporter, rect.fLeft == SkTMin(cubic[0].fX, SkTMin(cubic[1].fX,
+                SkTMin(cubic[2].fX, cubic[3].fX))));
+        REPORTER_ASSERT(reporter, rect.fTop == SkTMin(cubic[0].fY, SkTMin(cubic[1].fY,
+                SkTMin(cubic[2].fY, cubic[3].fY))));
+        REPORTER_ASSERT(reporter, rect.fRight == SkTMax(cubic[0].fX, SkTMax(cubic[1].fX,
+                SkTMax(cubic[2].fX, cubic[3].fX))));
+        REPORTER_ASSERT(reporter, rect.fBottom == SkTMax(cubic[0].fY, SkTMax(cubic[1].fY,
+                SkTMax(cubic[2].fY, cubic[3].fY))));
+        rect2.setBounds(cubic);
+        REPORTER_ASSERT(reporter, rect.intersects(&rect2));
+        // FIXME: add a recursive box subdivision method to verify that tight bounds is correct
+        SkDPoint leftTop = {rect2.fLeft, rect2.fTop};
+        REPORTER_ASSERT(reporter, rect.contains(leftTop));
+        SkDPoint rightBottom = {rect2.fRight, rect2.fBottom};
+        REPORTER_ASSERT(reporter, rect.contains(rightBottom));
+    }
+}
+
+#include "TestClassDef.h"
+DEFINE_TESTCLASS("PathOpsDRect", PathOpsDRectClass, DRectTest)