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      1 /*
      2  * Copyright 2014 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 #include "PathOpsExtendedTest.h"
      8 #include "PathOpsThreadedCommon.h"
      9 #include "SkString.h"
     10 
     11 static int loopNo = 17;
     12 
     13 static void add_point(SkString* str, SkScalar x, SkScalar y) {
     14     int asInt = SkScalarRoundToInt(x);
     15     if (SkIntToScalar(asInt) == x) {
     16         str->appendf("%d", asInt);
     17     } else {
     18         str->appendf("%1.9gf", x);
     19     }
     20     str->appendf(",");
     21     asInt = SkScalarRoundToInt(y);
     22     if (SkIntToScalar(asInt) == y) {
     23         str->appendf("%d", asInt);
     24     } else {
     25         str->appendf("%1.9gf", y);
     26     }
     27 }
     28 
     29 static void testOpLoopsMain(PathOpsThreadState* data) {
     30 #if DEBUG_SHOW_TEST_NAME
     31     strncpy(DEBUG_FILENAME_STRING, "", DEBUG_FILENAME_STRING_LENGTH);
     32 #endif
     33     SkASSERT(data);
     34     PathOpsThreadState& state = *data;
     35     SkString pathStr;
     36     for (int a = 0 ; a < 6; ++a) {
     37         for (int b = a + 1 ; b < 7; ++b) {
     38             for (int c = 0 ; c < 6; ++c) {
     39                 for (int d = c + 1 ; d < 7; ++d) {
     40         // define 4 points that form two lines that often cross; one line is (a, b) (c, d)
     41         SkVector v = {SkIntToScalar(a - c), SkIntToScalar(b - d)};
     42         SkPoint midA = { SkIntToScalar(a * state.fA + c * (6 - state.fA)) / 6,
     43                          SkIntToScalar(b * state.fA + d * (6 - state.fA)) / 6 };
     44         SkPoint midB = { SkIntToScalar(a * state.fB + c * (6 - state.fB)) / 6,
     45                          SkIntToScalar(b * state.fB + d * (6 - state.fB)) / 6 };
     46         SkPoint endC = { midA.fX + v.fY * state.fC / 3,
     47                           midA.fY + v.fX * state.fC / 3 };
     48         SkPoint endD = { midB.fX - v.fY * state.fD / 3,
     49                           midB.fY + v.fX * state.fD / 3 };
     50         SkPath pathA, pathB;
     51         pathA.moveTo(SkIntToScalar(a), SkIntToScalar(b));
     52         pathA.cubicTo(SkIntToScalar(c), SkIntToScalar(d), endC.fX, endC.fY, endD.fX, endD.fY);
     53         pathA.close();
     54         pathB.moveTo(SkIntToScalar(c), SkIntToScalar(d));
     55         pathB.cubicTo(endC.fX, endC.fY, endD.fX, endD.fY, SkIntToScalar(a), SkIntToScalar(b));
     56         pathB.close();
     57 //        SkDebugf("%s\n", pathStr);
     58         if (state.fReporter->verbose()) {
     59             pathStr.printf("static void loop%d(skiatest::Reporter* reporter,"
     60                     " const char* filename) {\n", loopNo);
     61             pathStr.appendf("    SkPath path, pathB;\n");
     62             pathStr.appendf("    path.moveTo(%d,%d);\n", a, b);
     63             pathStr.appendf("    path.cubicTo(%d,%d, ", c, d);
     64             add_point(&pathStr, endC.fX, endC.fY);
     65             pathStr.appendf(", ");
     66             add_point(&pathStr, endD.fX, endD.fY);
     67             pathStr.appendf(");\n");
     68             pathStr.appendf("    path.close();\n");
     69             pathStr.appendf("    pathB.moveTo(%d,%d);\n", c, d);
     70             pathStr.appendf("    pathB.cubicTo(");
     71             add_point(&pathStr, endC.fX, endC.fY);
     72             pathStr.appendf(", ");
     73             add_point(&pathStr, endD.fX, endD.fY);
     74             pathStr.appendf(", %d,%d);\n", a, b);
     75             pathStr.appendf("    pathB.close();\n");
     76             pathStr.appendf("    testPathOp(reporter, path, pathB, kIntersect_SkPathOp,"
     77                     " filename);\n");
     78             pathStr.appendf("}\n");
     79             state.outputProgress(pathStr.c_str(), kIntersect_SkPathOp);
     80         }
     81         testPathOp(state.fReporter, pathA, pathB, kIntersect_SkPathOp, "loops");
     82                 }
     83             }
     84         }
     85     }
     86 }
     87 
     88 DEF_TEST(PathOpsOpLoopsThreaded, reporter) {
     89     initializeTests(reporter, "loopOp");
     90     PathOpsThreadedTestRunner testRunner(reporter);
     91     for (int a = 0; a < 6; ++a) {  // outermost
     92         for (int b = a + 1; b < 7; ++b) {
     93             for (int c = 0 ; c < 6; ++c) {
     94                 for (int d = c + 1; d < 7; ++d) {
     95                     *testRunner.fRunnables.append() =
     96                             new PathOpsThreadedRunnable(&testOpLoopsMain, a, b, c, d, &testRunner);
     97                 }
     98             }
     99             if (!reporter->allowExtendedTest()) goto finish;
    100         }
    101     }
    102 finish:
    103     testRunner.render();
    104 }
    105