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#include "CurveIntersection.h"
#include "Intersection_Tests.h"
#include "Intersections.h"
#include "QuadraticIntersection_TestData.h"
#include "TestUtilities.h"
#include "SkTypes.h"
const int firstQuadIntersectionTest = 9;
static void standardTestCases() {
for (size_t index = firstQuadIntersectionTest; index < quadraticTests_count; ++index) {
const Quadratic& quad1 = quadraticTests[index][0];
const Quadratic& quad2 = quadraticTests[index][1];
Quadratic reduce1, reduce2;
int order1 = reduceOrder(quad1, reduce1);
int order2 = reduceOrder(quad2, reduce2);
if (order1 < 3) {
printf("[%d] quad1 order=%d\n", (int) index, order1);
}
if (order2 < 3) {
printf("[%d] quad2 order=%d\n", (int) index, order2);
}
if (order1 == 3 && order2 == 3) {
Intersections intersections;
intersect(reduce1, reduce2, intersections);
if (intersections.intersected()) {
for (int pt = 0; pt < intersections.used(); ++pt) {
double tt1 = intersections.fT[0][pt];
double tx1, ty1;
xy_at_t(quad1, tt1, tx1, ty1);
double tt2 = intersections.fT[1][pt];
double tx2, ty2;
xy_at_t(quad2, tt2, tx2, ty2);
if (!approximately_equal(tx1, tx2)) {
printf("%s [%d,%d] x!= t1=%g (%g,%g) t2=%g (%g,%g)\n",
__FUNCTION__, (int)index, pt, tt1, tx1, ty1, tt2, tx2, ty2);
}
if (!approximately_equal(ty1, ty2)) {
printf("%s [%d,%d] y!= t1=%g (%g,%g) t2=%g (%g,%g)\n",
__FUNCTION__, (int)index, pt, tt1, tx1, ty1, tt2, tx2, ty2);
}
}
}
}
}
}
static const Quadratic testSet[] = {
{{8, 8}, {10, 10}, {8, -10}},
{{8, 8}, {12, 12}, {14, 4}},
{{8, 8}, {9, 9}, {10, 8}}
};
const size_t testSetCount = sizeof(testSet) / sizeof(testSet[0]);
static void oneOffTest() {
for (int outer = 0; outer < testSetCount - 1; ++outer) {
for (int inner = outer + 1; inner < testSetCount; ++inner) {
const Quadratic& quad1 = testSet[outer];
const Quadratic& quad2 = testSet[inner];
Intersections intersections;
intersect(quad1, quad2, intersections);
if (!intersections.intersected()) {
SkDebugf("%s no intersection!\n", __FUNCTION__);
}
for (int pt = 0; pt < intersections.used(); ++pt) {
double tt1 = intersections.fT[0][pt];
double tx1, ty1;
xy_at_t(quad1, tt1, tx1, ty1);
double tt2 = intersections.fT[1][pt];
double tx2, ty2;
xy_at_t(quad2, tt2, tx2, ty2);
if (!approximately_equal(tx1, tx2)) {
SkDebugf("%s [%d,%d] x!= t1=%g (%g,%g) t2=%g (%g,%g)\n",
__FUNCTION__, (int)index, pt, tt1, tx1, ty1, tt2, tx2, ty2);
SkASSERT(0);
}
if (!approximately_equal(ty1, ty2)) {
SkDebugf("%s [%d,%d] y!= t1=%g (%g,%g) t2=%g (%g,%g)\n",
__FUNCTION__, (int)index, pt, tt1, tx1, ty1, tt2, tx2, ty2);
SkASSERT(0);
}
SkDebugf("%s [%d][%d] t1=%1.9g (%1.9g, %1.9g) t2=%1.9g\n", __FUNCTION__,
outer, inner, tt1, tx1, tx2, tt2);
}
}
}
}
void QuadraticIntersection_Test() {
oneOffTest();
standardTestCases();
}
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