C++ (Cpp) SkClipStack::getConservativeBounds Exemples

Exemple #1

Fichier : ClipCacheTest.cpp Projet : CriGio/platform_external_skia

// Ensure that the 'getConservativeBounds' calls are returning bounds clamped
// to the render target
static void test_clip_bounds(skiatest::Reporter* reporter, GrContext* context) {

    static const int kXSize = 100;
    static const int kYSize = 100;

    GrTextureDesc desc;
    desc.fFlags     = kRenderTarget_GrTextureFlagBit;
    desc.fConfig    = kAlpha_8_GrPixelConfig;
    desc.fWidth     = kXSize;
    desc.fHeight    = kYSize;

    GrTexture* texture = context->createUncachedTexture(desc, NULL, 0);
    if (!texture) {
        return;
    }

    SkAutoUnref au(texture);

    SkIRect intScreen = SkIRect::MakeWH(kXSize, kYSize);
    SkRect screen;

    screen = SkRect::MakeWH(SkIntToScalar(kXSize),
                            SkIntToScalar(kYSize));

    SkRect clipRect(screen);
    clipRect.outset(10, 10);

    // create a clip stack that will (trivially) reduce to a single rect that
    // is larger than the screen
    SkClipStack stack;
    stack.clipDevRect(clipRect, SkRegion::kReplace_Op, false);

    bool isIntersectionOfRects = true;
    SkRect devStackBounds;

    stack.getConservativeBounds(0, 0, kXSize, kYSize,
                                &devStackBounds,
                                &isIntersectionOfRects);

    // make sure that the SkClipStack is behaving itself
    REPORTER_ASSERT(reporter, screen == devStackBounds);
    REPORTER_ASSERT(reporter, isIntersectionOfRects);

    // wrap the SkClipStack in a GrClipData
    GrClipData clipData;
    clipData.fClipStack = &stack;

    SkIRect devGrClipDataBound;
    clipData.getConservativeBounds(texture,
                                   &devGrClipDataBound,
                                   &isIntersectionOfRects);

    // make sure that GrClipData is behaving itself
    REPORTER_ASSERT(reporter, intScreen == devGrClipDataBound);
    REPORTER_ASSERT(reporter, isIntersectionOfRects);
}

Exemple #2

// Ensure that the 'getConservativeBounds' calls are returning bounds clamped
// to the render target
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(GrClipBounds, reporter, ctxInfo) {
    static const int kXSize = 100;
    static const int kYSize = 100;

    const SkIRect intScreen = SkIRect::MakeWH(kXSize, kYSize);
    const SkRect screen = SkRect::Make(intScreen);

    SkRect clipRect(screen);
    clipRect.outset(10, 10);

    // create a clip stack that will (trivially) reduce to a single rect that
    // is larger than the screen
    SkClipStack stack;
    stack.clipRect(clipRect, SkMatrix::I(), kReplace_SkClipOp, false);

    bool isIntersectionOfRects = true;
    SkRect devStackBounds;

    stack.getConservativeBounds(0, 0, kXSize, kYSize,
                                &devStackBounds,
                                &isIntersectionOfRects);

    // make sure that the SkClipStack is behaving itself
    REPORTER_ASSERT(reporter, screen == devStackBounds);
    REPORTER_ASSERT(reporter, isIntersectionOfRects);

    // wrap the SkClipStack in a GrClip
    GrClipStackClip clipData(&stack);

    SkIRect devGrClipBound;
    clipData.getConservativeBounds(kXSize, kYSize,
                                   &devGrClipBound,
                                   &isIntersectionOfRects);

    // make sure that GrClip is behaving itself
    REPORTER_ASSERT(reporter, intScreen == devGrClipBound);
    REPORTER_ASSERT(reporter, isIntersectionOfRects);
}