/*
 * 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 "include/core/SkPath.h"
#include "include/core/SkPathBuilder.h"
#include "include/core/SkPathTypes.h"
#include "include/core/SkScalar.h"
#include "include/core/SkString.h"
#include "include/core/SkTypes.h"
#include "include/pathops/SkPathOps.h"
#include "include/private/SkTDArray.h"
#include "src/pathops/SkPathOpsDebug.h"
#include "tests/PathOpsDebug.h"
#include "tests/PathOpsExtendedTest.h"
#include "tests/PathOpsThreadedCommon.h"
#include "tests/Test.h"

#include <array>
#include <atomic>
#include <initializer_list>

// four rects, of four sizes
// for 3 smaller sizes, tall, wide
    // top upper mid lower bottom aligned (3 bits, 5 values)
    // same with x (3 bits, 5 values)
// not included, square, tall, wide (2 bits)
// cw or ccw (1 bit)

static int loopNo = 6;
static std::atomic<int> gRectsTestNo{0};

static void testPathOpsRectsMain(PathOpsThreadState* data)
{
    SkASSERT(data);
    const SkPathFillType fts[] = { SkPathFillType::kWinding, SkPathFillType::kEvenOdd };
    PathOpsThreadState& state = *data;
    SkString pathStr;
    for (int a = 0 ; a < 6; ++a) {
        for (int b = a + 1 ; b < 7; ++b) {
            for (int c = 0 ; c < 6; ++c) {
                for (int d = c + 1 ; d < 7; ++d) {
                    for (auto e : fts) {
    for (auto f : fts)   {
        SkPath pathA = SkPathBuilder((SkPathFillType) e)
               .addRect({SkIntToScalar(state.fA), SkIntToScalar(state.fA), SkIntToScalar(state.fB),
                         SkIntToScalar(state.fB)}, SkPathDirection::kCW)
               .addRect({SkIntToScalar(state.fC), SkIntToScalar(state.fC), SkIntToScalar(state.fD),
                         SkIntToScalar(state.fD)}, SkPathDirection::kCW)
               .close()
               .detach();
        SkPath pathB = SkPathBuilder((SkPathFillType) f)
               .addRect({SkIntToScalar(a), SkIntToScalar(a), SkIntToScalar(b),
                         SkIntToScalar(b)}, SkPathDirection::kCW)
               .addRect({SkIntToScalar(c), SkIntToScalar(c), SkIntToScalar(d),
                         SkIntToScalar(d)}, SkPathDirection::kCW)
               .close()
               .detach();
        for (int op = 0 ; op <= kXOR_SkPathOp; ++op)    {
            if (state.fReporter->verbose()) {
                pathStr.printf(
                        "static void rects%d(skiatest::Reporter* reporter,"
                        "const char* filename) {\n", loopNo);
                pathStr.appendf("    SkPath path, pathB;");
                pathStr.appendf("    path.setFillType(SkPathFillType::k%s);\n",
                        e == SkPathFillType::kWinding ? "Winding" : e == SkPathFillType::kEvenOdd
                        ? "EvenOdd" : "?UNDEFINED");
                pathStr.appendf("    path.addRect(%d, %d, %d, %d,"
                        " SkPathDirection::kCW);\n", state.fA, state.fA, state.fB, state.fB);
                pathStr.appendf("    path.addRect(%d, %d, %d, %d,"
                        " SkPathDirection::kCW);\n", state.fC, state.fC, state.fD, state.fD);
                pathStr.appendf("    pathB.setFillType(SkPathFillType::k%s);\n",
                        f == SkPathFillType::kWinding ? "Winding" : f == SkPathFillType::kEvenOdd
                        ? "EvenOdd" : "?UNDEFINED");
                pathStr.appendf("    pathB.addRect(%d, %d, %d, %d,"
                        " SkPathDirection::kCW);\n", a, a, b, b);
                pathStr.appendf("    pathB.addRect(%d, %d, %d, %d,"
                        " SkPathDirection::kCW);\n", c, c, d, d);
                pathStr.appendf("    testPathOp(reporter, path, pathB, %s, filename);\n",
                        SkPathOpsDebug::OpStr((SkPathOp) op));
                pathStr.appendf("}\n\n");
                state.outputProgress(pathStr.c_str(), (SkPathOp) op);
            }
            SkString testName;
            testName.printf("thread_rects%d", ++gRectsTestNo);
            if (!testPathOp(state.fReporter, pathA, pathB, (SkPathOp) op, testName.c_str())) {
                if (state.fReporter->verbose()) {
                    ++loopNo;
                    goto skipToNext;
                }
            }
            if (PathOpsDebug::gCheckForDuplicateNames) return;
        }
    }
                    }
skipToNext: ;
                }
            }
        }
    }
}

DEF_TEST(PathOpsRectsThreaded, reporter) {
    initializeTests(reporter, "testOp");
    PathOpsThreadedTestRunner testRunner(reporter);
    for (int a = 0; a < 6; ++a) {  // outermost
        for (int b = a + 1; b < 7; ++b) {
            for (int c = 0 ; c < 6; ++c) {
                for (int d = c + 1; d < 7; ++d) {
                    *testRunner.fRunnables.append() = new PathOpsThreadedRunnable(
                            &testPathOpsRectsMain, a, b, c, d, &testRunner);
                }
            }
            if (!reporter->allowExtendedTest()) goto finish;
       }
    }
finish:
    testRunner.render();
}

static std::atomic<int> gFastTestNo{0};

static void testPathOpsFastMain(PathOpsThreadState* data)
{
    SkASSERT(data);
    const SkPathFillType fts[] = {
        SkPathFillType::kWinding,        SkPathFillType::kEvenOdd,
        SkPathFillType::kInverseWinding, SkPathFillType::kInverseEvenOdd
    };
    PathOpsThreadState& state = *data;
    SkString pathStr;
    int step = data->fReporter->allowExtendedTest() ? 2 : 5;
    for (bool a : { false, true } ) {
        for (bool b : { false, true } ) {
            for (int c = 0; c < 6; c += step) {
                for (int d = 0; d < 6; d += step) {
        for (auto e : fts) {
            for (auto f : fts) {
        SkPathBuilder builder(e);
        if (a) {
            builder.addRect({SkIntToScalar(state.fA), SkIntToScalar(state.fA),
                             SkIntToScalar(state.fB) + c, SkIntToScalar(state.fB)},
                            SkPathDirection::kCW);
        }
        SkPath pathA = builder.close().detach();

        builder.setFillType(f);
        if (b) {
            builder.addRect({SkIntToScalar(state.fC), SkIntToScalar(state.fC),
                             SkIntToScalar(state.fD) + d, SkIntToScalar(state.fD)},
                             SkPathDirection::kCW);
        }
        SkPath pathB = builder.close().detach();
        static constexpr auto fillTypeStr = std::to_array<const char*>({
                "Winding",
                "EvenOdd",
                "InverseWinding",
                "InverseEvenOdd",
        });
        for (int op = 0; op <= kXOR_SkPathOp; ++op)    {
            if (state.fReporter->verbose()) {
                pathStr.printf(
                        "static void fast%d(skiatest::Reporter* reporter,"
                        "const char* filename) {\n", loopNo);
                pathStr.appendf("    SkPath path, pathB;");
                pathStr.appendf("    path.setFillType(SkPathFillType::k%s);\n", fillTypeStr[(int)e]);
                if (a) {
                    pathStr.appendf("    path.addRect(%d, %d, %d, %d,"
                          " SkPathDirection::kCW);\n", state.fA, state.fA, state.fB + c, state.fB);
                }
                pathStr.appendf("    path.setFillType(SkPathFillType::k%s);\n", fillTypeStr[(int)f]);
                if (b) {
                    pathStr.appendf("    path.addRect(%d, %d, %d, %d,"
                          " SkPathDirection::kCW);\n", state.fC, state.fC, state.fD + d, state.fD);
                }
                pathStr.appendf("    testPathOp(reporter, path, pathB, %s, filename);\n",
                        SkPathOpsDebug::OpStr((SkPathOp) op));
                pathStr.appendf("}\n\n");
                state.outputProgress(pathStr.c_str(), (SkPathOp) op);
            }
            SkString testName;
            testName.printf("fast%d", ++gFastTestNo);
            if (!testPathOp(state.fReporter, pathA, pathB, (SkPathOp) op, testName.c_str())) {
                if (state.fReporter->verbose()) {
                    ++loopNo;
                    goto skipToNext;
                }
            }
            if (PathOpsDebug::gCheckForDuplicateNames) return;
        }
    }
                    }
skipToNext: ;
                }
            }
        }
    }
}

DEF_TEST(PathOpsFastThreaded, reporter) {
    initializeTests(reporter, "testOp");
    PathOpsThreadedTestRunner testRunner(reporter);
    int step = reporter->allowExtendedTest() ? 2 : 5;
    for (int a = 0; a < 6; a += step) {  // outermost
        for (int b = a + 1; b < 7; b += step) {
            for (int c = 0 ; c < 6; c += step) {
                for (int d = c + 1; d < 7; d += step) {
                    *testRunner.fRunnables.append() = new PathOpsThreadedRunnable(
                            &testPathOpsFastMain, a, b, c, d, &testRunner);
                }
            }
       }
    }
    testRunner.render();
}