/*
 * Copyright 2013 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "SkCanvas.h"
#include "SkData.h"
#include "SkDevice.h"
#include "SkImageEncoder.h"
#include "SkImage_Base.h"
#include "SkPath.h"
#include "SkRRect.h"
#include "SkSurface.h"
#include "SkUtils.h"
#include "Test.h"

#if SK_SUPPORT_GPU
#include "GrContextFactory.h"
#include "GrTest.h"
#else
class GrContextFactory;
class GrContext;
#endif

enum SurfaceType {
    kRaster_SurfaceType,
    kRasterDirect_SurfaceType,
    kGpu_SurfaceType,
    kGpuScratch_SurfaceType,

    kLastSurfaceType = kGpuScratch_SurfaceType
};
static const int kSurfaceTypeCnt = kLastSurfaceType + 1;

static void release_storage(void* pixels, void* context) {
    SkASSERT(pixels == context);
    sk_free(pixels);
}

static SkSurface* create_surface(SurfaceType surfaceType, GrContext* context,
                                 SkAlphaType at = kPremul_SkAlphaType,
                                 SkImageInfo* requestedInfo = nullptr) {
    const SkImageInfo info = SkImageInfo::MakeN32(10, 10, at);

    if (requestedInfo) {
        *requestedInfo = info;
    }

    switch (surfaceType) {
        case kRaster_SurfaceType:
            return SkSurface::NewRaster(info);
        case kRasterDirect_SurfaceType: {
            const size_t rowBytes = info.minRowBytes();
            void* storage = sk_malloc_throw(info.getSafeSize(rowBytes));
            return SkSurface::NewRasterDirectReleaseProc(info, storage, rowBytes,
                                                         release_storage, storage);
        }
        case kGpu_SurfaceType:
            return SkSurface::NewRenderTarget(context, SkSurface::kNo_Budgeted, info, 0, nullptr);
        case kGpuScratch_SurfaceType:
            return SkSurface::NewRenderTarget(context, SkSurface::kYes_Budgeted, info, 0, nullptr);
    }
    return nullptr;
}

static void test_empty_surface(skiatest::Reporter* reporter, GrContext* ctx) {
    const SkImageInfo info = SkImageInfo::Make(0, 0, kN32_SkColorType, kPremul_SkAlphaType);
    
    REPORTER_ASSERT(reporter, nullptr == SkSurface::NewRaster(info));
    REPORTER_ASSERT(reporter, nullptr == SkSurface::NewRasterDirect(info, nullptr, 0));
    if (ctx) {
        REPORTER_ASSERT(reporter, nullptr ==
                        SkSurface::NewRenderTarget(ctx, SkSurface::kNo_Budgeted, info, 0, nullptr));
    }
}

#if SK_SUPPORT_GPU
static void test_wrapped_texture_surface(skiatest::Reporter* reporter, GrContext* ctx) {
    if (nullptr == ctx) {
        return;
    }

    const GrGpu* gpu = ctx->getGpu();
    if (!gpu) {
        return;
    }

    // Test the wrapped factory for SkSurface by creating a backend texture and then wrap it in
    // a SkSurface.
    static const int kW = 100;
    static const int kH = 100;
    static const uint32_t kOrigColor = 0xFFAABBCC;
    SkAutoTArray<uint32_t> pixels(kW * kH);
    sk_memset32(pixels.get(), kOrigColor, kW * kH);
    GrBackendObject texHandle = gpu->createTestingOnlyBackendTexture(pixels.get(), kW, kH,
                                                                     kRGBA_8888_GrPixelConfig);

    GrBackendTextureDesc wrappedDesc;
    wrappedDesc.fConfig = kRGBA_8888_GrPixelConfig;
    wrappedDesc.fWidth = kW;
    wrappedDesc.fHeight = kH;
    wrappedDesc.fOrigin = kBottomLeft_GrSurfaceOrigin;
    wrappedDesc.fSampleCnt = 0;
    wrappedDesc.fFlags = kRenderTarget_GrBackendTextureFlag;
    wrappedDesc.fTextureHandle = texHandle;

    SkAutoTUnref<SkSurface> surface(SkSurface::NewWrappedRenderTarget(ctx, wrappedDesc, nullptr));
    REPORTER_ASSERT(reporter, surface);
    if (surface) {
        // Validate that we can draw to the canvas and that the original texture color is preserved
        // in pixels that aren't rendered to via the surface.
        SkPaint paint;
        static const SkColor kRectColor = ~kOrigColor | 0xFF000000;
        paint.setColor(kRectColor);
        surface->getCanvas()->drawRect(SkRect::MakeWH(SkIntToScalar(kW), SkIntToScalar(kH)/2),
                                       paint);
        SkImageInfo readInfo = SkImageInfo::MakeN32Premul(kW, kH);
        surface->readPixels(readInfo, pixels.get(), kW * sizeof(uint32_t), 0, 0);
        bool stop = false;
        SkPMColor origColorPM = SkPackARGB32((kOrigColor >> 24 & 0xFF),
                                             (kOrigColor >>  0 & 0xFF),
                                             (kOrigColor >>  8 & 0xFF),
                                             (kOrigColor >> 16 & 0xFF));
        SkPMColor rectColorPM = SkPackARGB32((kRectColor >> 24 & 0xFF),
                                             (kRectColor >> 16 & 0xFF),
                                             (kRectColor >>  8 & 0xFF),
                                             (kRectColor >>  0 & 0xFF));
        for (int y = 0; y < kH/2 && !stop; ++y) {
            for (int x = 0; x < kW && !stop; ++x) {
                REPORTER_ASSERT(reporter, rectColorPM == pixels[x + y * kW]);
                if (rectColorPM != pixels[x + y * kW]) {
                    stop = true;
                }
            }
        }
        stop = false;
        for (int y = kH/2; y < kH && !stop; ++y) {
            for (int x = 0; x < kW && !stop; ++x) {
                REPORTER_ASSERT(reporter, origColorPM == pixels[x + y * kW]);
                if (origColorPM != pixels[x + y * kW]) {
                    stop = true;
                }
            }
        }
    }
    gpu->deleteTestingOnlyBackendTexture(texHandle);

}
#endif


static void test_canvaspeek(skiatest::Reporter* reporter,
                            GrContextFactory* factory) {
    static const struct {
        SurfaceType fType;
        bool        fPeekShouldSucceed;
    } gRec[] = {
        { kRaster_SurfaceType,          true    },
        { kRasterDirect_SurfaceType,    true    },
#if SK_SUPPORT_GPU
        { kGpu_SurfaceType,             false   },
        { kGpuScratch_SurfaceType,      false   },
#endif
    };

    const SkColor color = SK_ColorRED;
    const SkPMColor pmcolor = SkPreMultiplyColor(color);

    int cnt;
#if SK_SUPPORT_GPU
    cnt = GrContextFactory::kGLContextTypeCnt;
#else
    cnt = 1;
#endif

    for (int i= 0; i < cnt; ++i) {
        GrContext* context = nullptr;
#if SK_SUPPORT_GPU
        GrContextFactory::GLContextType glCtxType = (GrContextFactory::GLContextType) i;
        if (!GrContextFactory::IsRenderingGLContext(glCtxType)) {
            continue;
        }
        context = factory->get(glCtxType);

        if (nullptr == context) {
            continue;
        }
#endif
        for (size_t i = 0; i < SK_ARRAY_COUNT(gRec); ++i) {
            SkImageInfo info, requestInfo;
            size_t rowBytes;

            SkAutoTUnref<SkSurface> surface(create_surface(gRec[i].fType, context,
                                                           kPremul_SkAlphaType, &requestInfo));
            surface->getCanvas()->clear(color);

            const void* addr = surface->getCanvas()->peekPixels(&info, &rowBytes);
            bool success = SkToBool(addr);
            REPORTER_ASSERT(reporter, gRec[i].fPeekShouldSucceed == success);

            SkImageInfo info2;
            size_t rb2;
            const void* addr2 = surface->peekPixels(&info2, &rb2);

            if (success) {
                REPORTER_ASSERT(reporter, requestInfo == info);
                REPORTER_ASSERT(reporter, requestInfo.minRowBytes() <= rowBytes);
                REPORTER_ASSERT(reporter, pmcolor == *(const SkPMColor*)addr);

                REPORTER_ASSERT(reporter, addr2 == addr);
                REPORTER_ASSERT(reporter, info2 == info);
                REPORTER_ASSERT(reporter, rb2 == rowBytes);
            } else {
                REPORTER_ASSERT(reporter, nullptr == addr2);
            }
        }
    }
}

// For compatibility with clients that still call accessBitmap(), we need to ensure that we bump
// the bitmap's genID when we draw to it, else they won't know it has new values. When they are
// exclusively using surface/image, and we can hide accessBitmap from device, we can remove this
// test.
static void test_accessPixels(skiatest::Reporter* reporter, GrContextFactory* factory) {
    static const struct {
        SurfaceType fType;
        bool        fPeekShouldSucceed;
    } gRec[] = {
        { kRaster_SurfaceType,          true    },
        { kRasterDirect_SurfaceType,    true    },
#if SK_SUPPORT_GPU
        { kGpu_SurfaceType,             false   },
        { kGpuScratch_SurfaceType,      false   },
#endif
    };
    
    int cnt;
#if SK_SUPPORT_GPU
    cnt = GrContextFactory::kGLContextTypeCnt;
#else
    cnt = 1;
#endif
    
    for (int i= 0; i < cnt; ++i) {
        GrContext* context = nullptr;
#if SK_SUPPORT_GPU
        GrContextFactory::GLContextType glCtxType = (GrContextFactory::GLContextType) i;
        if (!GrContextFactory::IsRenderingGLContext(glCtxType)) {
            continue;
        }
        context = factory->get(glCtxType);
        
        if (nullptr == context) {
            continue;
        }
#endif
        for (size_t j = 0; j < SK_ARRAY_COUNT(gRec); ++j) {
            SkImageInfo info, requestInfo;
            
            SkAutoTUnref<SkSurface> surface(create_surface(gRec[j].fType, context,
                                                           kPremul_SkAlphaType,  &requestInfo));
            SkCanvas* canvas = surface->getCanvas();
            canvas->clear(0);

            SkBaseDevice* device = canvas->getDevice_just_for_deprecated_compatibility_testing();
            SkBitmap bm = device->accessBitmap(false);
            uint32_t genID0 = bm.getGenerationID();
            // Now we draw something, which needs to "dirty" the genID (sorta like copy-on-write)
            canvas->drawColor(SK_ColorBLUE);
            // Now check that we get a different genID
            uint32_t genID1 = bm.getGenerationID();
            REPORTER_ASSERT(reporter, genID0 != genID1);
        }
    }
}

static void test_snap_alphatype(skiatest::Reporter* reporter, GrContextFactory* factory) {
    GrContext* context = nullptr;
#if SK_SUPPORT_GPU
    context = factory->get(GrContextFactory::kNative_GLContextType);
    if (nullptr == context) {
        return;
    }
#endif
    for (int opaque = 0; opaque < 2; ++opaque) {
        SkAlphaType atype = SkToBool(opaque) ? kOpaque_SkAlphaType : kPremul_SkAlphaType;
        for (int st = 0; st < kSurfaceTypeCnt; ++st) {
            SurfaceType stype = (SurfaceType)st;
            SkAutoTUnref<SkSurface> surface(create_surface(stype, context, atype));
            REPORTER_ASSERT(reporter, surface);
            if (surface) {
                SkAutoTUnref<SkImage> image(surface->newImageSnapshot());
                REPORTER_ASSERT(reporter, image);
                if (image) {
                    REPORTER_ASSERT(reporter, image->isOpaque() == SkToBool(opaque));
                }
            }
        }
    }
}

static void test_backend_cow(skiatest::Reporter* reporter, SkSurface* surface,
                             SkSurface::BackendHandleAccess mode,
                             GrBackendObject (*func)(SkSurface*, SkSurface::BackendHandleAccess)) {
    GrBackendObject obj1 = func(surface, mode);
    SkAutoTUnref<SkImage> snap1(surface->newImageSnapshot());

    GrBackendObject obj2 = func(surface, mode);
    SkAutoTUnref<SkImage> snap2(surface->newImageSnapshot());

    // If the access mode triggers CoW, then the backend objects should reflect it.
    REPORTER_ASSERT(reporter, (obj1 == obj2) == (snap1 == snap2));
}

static void TestSurfaceCopyOnWrite(skiatest::Reporter* reporter, SurfaceType surfaceType,
                                   GrContext* context) {
    // Verify that the right canvas commands trigger a copy on write
    SkSurface* surface = create_surface(surfaceType, context);
    SkAutoTUnref<SkSurface> aur_surface(surface);
    SkCanvas* canvas = surface->getCanvas();

    const SkRect testRect =
        SkRect::MakeXYWH(SkIntToScalar(0), SkIntToScalar(0),
                         SkIntToScalar(4), SkIntToScalar(5));
    SkPath testPath;
    testPath.addRect(SkRect::MakeXYWH(SkIntToScalar(0), SkIntToScalar(0),
                                      SkIntToScalar(2), SkIntToScalar(1)));

    const SkIRect testIRect = SkIRect::MakeXYWH(0, 0, 2, 1);

    SkRegion testRegion;
    testRegion.setRect(testIRect);


    const SkColor testColor = 0x01020304;
    const SkPaint testPaint;
    const SkPoint testPoints[3] = {
        {SkIntToScalar(0), SkIntToScalar(0)},
        {SkIntToScalar(2), SkIntToScalar(1)},
        {SkIntToScalar(0), SkIntToScalar(2)}
    };
    const size_t testPointCount = 3;

    SkBitmap testBitmap;
    testBitmap.allocN32Pixels(10, 10);
    testBitmap.eraseColor(0);

    SkRRect testRRect;
    testRRect.setRectXY(testRect, SK_Scalar1, SK_Scalar1);

    SkString testText("Hello World");
    const SkPoint testPoints2[] = {
        { SkIntToScalar(0), SkIntToScalar(1) },
        { SkIntToScalar(1), SkIntToScalar(1) },
        { SkIntToScalar(2), SkIntToScalar(1) },
        { SkIntToScalar(3), SkIntToScalar(1) },
        { SkIntToScalar(4), SkIntToScalar(1) },
        { SkIntToScalar(5), SkIntToScalar(1) },
        { SkIntToScalar(6), SkIntToScalar(1) },
        { SkIntToScalar(7), SkIntToScalar(1) },
        { SkIntToScalar(8), SkIntToScalar(1) },
        { SkIntToScalar(9), SkIntToScalar(1) },
        { SkIntToScalar(10), SkIntToScalar(1) },
    };

#define EXPECT_COPY_ON_WRITE(command)                               \
    {                                                               \
        SkImage* imageBefore = surface->newImageSnapshot();         \
        SkAutoTUnref<SkImage> aur_before(imageBefore);              \
        canvas-> command ;                                          \
        SkImage* imageAfter = surface->newImageSnapshot();          \
        SkAutoTUnref<SkImage> aur_after(imageAfter);                \
        REPORTER_ASSERT(reporter, imageBefore != imageAfter);       \
    }

    EXPECT_COPY_ON_WRITE(clear(testColor))
    EXPECT_COPY_ON_WRITE(drawPaint(testPaint))
    EXPECT_COPY_ON_WRITE(drawPoints(SkCanvas::kPoints_PointMode, testPointCount, testPoints, \
        testPaint))
    EXPECT_COPY_ON_WRITE(drawOval(testRect, testPaint))
    EXPECT_COPY_ON_WRITE(drawRect(testRect, testPaint))
    EXPECT_COPY_ON_WRITE(drawRRect(testRRect, testPaint))
    EXPECT_COPY_ON_WRITE(drawPath(testPath, testPaint))
    EXPECT_COPY_ON_WRITE(drawBitmap(testBitmap, 0, 0))
    EXPECT_COPY_ON_WRITE(drawBitmapRect(testBitmap, testRect, nullptr))
    EXPECT_COPY_ON_WRITE(drawBitmapNine(testBitmap, testIRect, testRect, nullptr))
    EXPECT_COPY_ON_WRITE(drawSprite(testBitmap, 0, 0, nullptr))
    EXPECT_COPY_ON_WRITE(drawText(testText.c_str(), testText.size(), 0, 1, testPaint))
    EXPECT_COPY_ON_WRITE(drawPosText(testText.c_str(), testText.size(), testPoints2, \
        testPaint))
    EXPECT_COPY_ON_WRITE(drawTextOnPath(testText.c_str(), testText.size(), testPath, nullptr, \
        testPaint))

    const SkSurface::BackendHandleAccess accessModes[] = {
        SkSurface::kFlushRead_BackendHandleAccess,
        SkSurface::kFlushWrite_BackendHandleAccess,
        SkSurface::kDiscardWrite_BackendHandleAccess,
    };

    for (auto access : accessModes) {
        test_backend_cow(reporter, surface, access,
                          [](SkSurface* s, SkSurface::BackendHandleAccess a) -> GrBackendObject {
            return s->getTextureHandle(a);
        });

        test_backend_cow(reporter, surface, access,
                          [](SkSurface* s, SkSurface::BackendHandleAccess a) -> GrBackendObject {
            GrBackendObject result;
            if (!s->getRenderTargetHandle(&result, a)) {
                return 0;
            }
            return result;
        });
    }
}

static void TestSurfaceWritableAfterSnapshotRelease(skiatest::Reporter* reporter,
                                                    SurfaceType surfaceType,
                                                    GrContext* context) {
    // This test succeeds by not triggering an assertion.
    // The test verifies that the surface remains writable (usable) after
    // acquiring and releasing a snapshot without triggering a copy on write.
    SkAutoTUnref<SkSurface> surface(create_surface(surfaceType, context));
    SkCanvas* canvas = surface->getCanvas();
    canvas->clear(1);
    surface->newImageSnapshot()->unref();  // Create and destroy SkImage
    canvas->clear(2);  // Must not assert internally
}

#if SK_SUPPORT_GPU
static void Test_crbug263329(skiatest::Reporter* reporter,
                             SurfaceType surfaceType,
                             GrContext* context) {
    // This is a regression test for crbug.com/263329
    // Bug was caused by onCopyOnWrite releasing the old surface texture
    // back to the scratch texture pool even though the texture is used
    // by and active SkImage_Gpu.
    SkAutoTUnref<SkSurface> surface1(create_surface(surfaceType, context));
    SkAutoTUnref<SkSurface> surface2(create_surface(surfaceType, context));
    SkCanvas* canvas1 = surface1->getCanvas();
    SkCanvas* canvas2 = surface2->getCanvas();
    canvas1->clear(1);
    SkAutoTUnref<SkImage> image1(surface1->newImageSnapshot());
    // Trigger copy on write, new backing is a scratch texture
    canvas1->clear(2);
    SkAutoTUnref<SkImage> image2(surface1->newImageSnapshot());
    // Trigger copy on write, old backing should not be returned to scratch
    // pool because it is held by image2
    canvas1->clear(3);

    canvas2->clear(4);
    SkAutoTUnref<SkImage> image3(surface2->newImageSnapshot());
    // Trigger copy on write on surface2. The new backing store should not
    // be recycling a texture that is held by an existing image.
    canvas2->clear(5);
    SkAutoTUnref<SkImage> image4(surface2->newImageSnapshot());
    REPORTER_ASSERT(reporter, as_IB(image4)->getTexture() != as_IB(image3)->getTexture());
    // The following assertion checks crbug.com/263329
    REPORTER_ASSERT(reporter, as_IB(image4)->getTexture() != as_IB(image2)->getTexture());
    REPORTER_ASSERT(reporter, as_IB(image4)->getTexture() != as_IB(image1)->getTexture());
    REPORTER_ASSERT(reporter, as_IB(image3)->getTexture() != as_IB(image2)->getTexture());
    REPORTER_ASSERT(reporter, as_IB(image3)->getTexture() != as_IB(image1)->getTexture());
    REPORTER_ASSERT(reporter, as_IB(image2)->getTexture() != as_IB(image1)->getTexture());
}

static void TestGetTexture(skiatest::Reporter* reporter,
                                 SurfaceType surfaceType,
                                 GrContext* context) {
    SkAutoTUnref<SkSurface> surface(create_surface(surfaceType, context));
    SkAutoTUnref<SkImage> image(surface->newImageSnapshot());
    GrTexture* texture = as_IB(image)->getTexture();
    if (surfaceType == kGpu_SurfaceType || surfaceType == kGpuScratch_SurfaceType) {
        REPORTER_ASSERT(reporter, texture);
        REPORTER_ASSERT(reporter, 0 != texture->getTextureHandle());
    } else {
        REPORTER_ASSERT(reporter, nullptr == texture);
    }
    surface->notifyContentWillChange(SkSurface::kDiscard_ContentChangeMode);
    REPORTER_ASSERT(reporter, as_IB(image)->getTexture() == texture);
}

#include "GrGpuResourcePriv.h"
#include "SkGpuDevice.h"
#include "SkImage_Gpu.h"
#include "SkSurface_Gpu.h"

SkSurface::Budgeted is_budgeted(SkSurface* surf) {
    return ((SkSurface_Gpu*)surf)->getDevice()->accessRenderTarget()->resourcePriv().isBudgeted() ?
        SkSurface::kYes_Budgeted : SkSurface::kNo_Budgeted;
}

SkSurface::Budgeted is_budgeted(SkImage* image) {
    return ((SkImage_Gpu*)image)->getTexture()->resourcePriv().isBudgeted() ?
        SkSurface::kYes_Budgeted : SkSurface::kNo_Budgeted;
}

static void test_surface_budget(skiatest::Reporter* reporter, GrContext* context) {
    SkImageInfo info = SkImageInfo::MakeN32Premul(8,8);
    for (int i = 0; i < 2; ++i) {
        SkSurface::Budgeted sbudgeted = i ? SkSurface::kYes_Budgeted : SkSurface::kNo_Budgeted;
        for (int j = 0; j < 2; ++j) {
            SkSurface::Budgeted ibudgeted = j ? SkSurface::kYes_Budgeted : SkSurface::kNo_Budgeted;
            SkAutoTUnref<SkSurface>
                surface(SkSurface::NewRenderTarget(context, sbudgeted, info, 0));
            SkASSERT(surface);
            REPORTER_ASSERT(reporter, sbudgeted == is_budgeted(surface));

            SkAutoTUnref<SkImage> image(surface->newImageSnapshot(ibudgeted));

            // Initially the image shares a texture with the surface, and the surface decides
            // whether it is budgeted or not.
            REPORTER_ASSERT(reporter, sbudgeted == is_budgeted(surface));
            REPORTER_ASSERT(reporter, sbudgeted == is_budgeted(image));

            // Now trigger copy-on-write
            surface->getCanvas()->clear(SK_ColorBLUE);

            // They don't share a texture anymore. They should each have made their own budget
            // decision.
            REPORTER_ASSERT(reporter, sbudgeted == is_budgeted(surface));
            REPORTER_ASSERT(reporter, ibudgeted == is_budgeted(image));
        }
    }
}

#endif

static void TestSurfaceNoCanvas(skiatest::Reporter* reporter,
                                          SurfaceType surfaceType,
                                          GrContext* context,
                                          SkSurface::ContentChangeMode mode) {
    // Verifies the robustness of SkSurface for handling use cases where calls
    // are made before a canvas is created.
    {
        // Test passes by not asserting
        SkSurface* surface = create_surface(surfaceType, context);
        SkAutoTUnref<SkSurface> aur_surface(surface);
        surface->notifyContentWillChange(mode);
        SkDEBUGCODE(surface->validate();)
    }
    {
        SkSurface* surface = create_surface(surfaceType, context);
        SkAutoTUnref<SkSurface> aur_surface(surface);
        SkImage* image1 = surface->newImageSnapshot();
        SkAutoTUnref<SkImage> aur_image1(image1);
        SkDEBUGCODE(image1->validate();)
        SkDEBUGCODE(surface->validate();)
        surface->notifyContentWillChange(mode);
        SkDEBUGCODE(image1->validate();)
        SkDEBUGCODE(surface->validate();)
        SkImage* image2 = surface->newImageSnapshot();
        SkAutoTUnref<SkImage> aur_image2(image2);
        SkDEBUGCODE(image2->validate();)
        SkDEBUGCODE(surface->validate();)
        REPORTER_ASSERT(reporter, image1 != image2);
    }

}

DEF_GPUTEST(Surface, reporter, factory) {
    TestSurfaceCopyOnWrite(reporter, kRaster_SurfaceType, nullptr);
    TestSurfaceWritableAfterSnapshotRelease(reporter, kRaster_SurfaceType, nullptr);
    TestSurfaceNoCanvas(reporter, kRaster_SurfaceType, nullptr, SkSurface::kDiscard_ContentChangeMode);
    TestSurfaceNoCanvas(reporter, kRaster_SurfaceType, nullptr, SkSurface::kRetain_ContentChangeMode);


    test_empty_surface(reporter, nullptr);


    test_canvaspeek(reporter, factory);

    test_accessPixels(reporter, factory);

    test_snap_alphatype(reporter, factory);

#if SK_SUPPORT_GPU
    TestGetTexture(reporter, kRaster_SurfaceType, nullptr);
    if (factory) {
        for (int i= 0; i < GrContextFactory::kGLContextTypeCnt; ++i) {
            GrContextFactory::GLContextType glCtxType = (GrContextFactory::GLContextType) i;
            if (!GrContextFactory::IsRenderingGLContext(glCtxType)) {
                continue;
            }
            GrContext* context = factory->get(glCtxType);
            if (context) {
                Test_crbug263329(reporter, kGpu_SurfaceType, context);
                Test_crbug263329(reporter, kGpuScratch_SurfaceType, context);
                TestSurfaceCopyOnWrite(reporter, kGpu_SurfaceType, context);
                TestSurfaceCopyOnWrite(reporter, kGpuScratch_SurfaceType, context);
                TestSurfaceWritableAfterSnapshotRelease(reporter, kGpu_SurfaceType, context);
                TestSurfaceWritableAfterSnapshotRelease(reporter, kGpuScratch_SurfaceType, context);
                TestSurfaceNoCanvas(reporter, kGpu_SurfaceType, context, SkSurface::kDiscard_ContentChangeMode);
                TestSurfaceNoCanvas(reporter, kGpuScratch_SurfaceType, context, SkSurface::kDiscard_ContentChangeMode);
                TestSurfaceNoCanvas(reporter, kGpu_SurfaceType, context, SkSurface::kRetain_ContentChangeMode);
                TestSurfaceNoCanvas(reporter, kGpuScratch_SurfaceType, context, SkSurface::kRetain_ContentChangeMode);
                TestGetTexture(reporter, kGpu_SurfaceType, context);
                TestGetTexture(reporter, kGpuScratch_SurfaceType, context);
                test_empty_surface(reporter, context);
                test_surface_budget(reporter, context);
                test_wrapped_texture_surface(reporter, context);
            }
        }
    }
#endif
}