Esempio n. 1
0
    void makeMatrices() {
        {
            SkMatrix m;
            m.setScale(SkIntToScalar(2), SkIntToScalar(3));
            fMatrices.push_back(m);
        }

        {
            SkMatrix m;
            m.setScale(SkIntToScalar(2), SkIntToScalar(2));
            fMatrices.push_back(m);
        }

        {
            SkMatrix m;
            m.setSkew(SkIntToScalar(2), SkIntToScalar(3));
            fMatrices.push_back(m);
        }

        {
            SkMatrix m;
            m.setSkew(SkIntToScalar(2), SkIntToScalar(2));
            fMatrices.push_back(m);
        }

        {
            SkMatrix m;
            m.setRotate(SkIntToScalar(30));
            fMatrices.push_back(m);
        }
    }
static void test_treatAsSprite(skiatest::Reporter* reporter) {
    const unsigned bilerBits = kSkSubPixelBitsForBilerp;

    SkMatrix mat;
    SkISize  size;
    SkRandom rand;

    // assert: translate-only no-filter can always be treated as sprite
    for (int i = 0; i < 1000; ++i) {
        rand_matrix(&mat, rand, SkMatrix::kTranslate_Mask);
        for (int j = 0; j < 1000; ++j) {
            rand_size(&size, rand);
            REPORTER_ASSERT(reporter, treat_as_sprite(mat, size, 0));
        }
    }

    // assert: rotate/perspect is never treated as sprite
    for (int i = 0; i < 1000; ++i) {
        rand_matrix(&mat, rand, SkMatrix::kAffine_Mask | SkMatrix::kPerspective_Mask);
        for (int j = 0; j < 1000; ++j) {
            rand_size(&size, rand);
            REPORTER_ASSERT(reporter, !treat_as_sprite(mat, size, 0));
            REPORTER_ASSERT(reporter, !treat_as_sprite(mat, size, bilerBits));
        }
    }

    size.set(500, 600);

    const SkScalar tooMuchSubpixel = 100.1f;
    mat.setTranslate(tooMuchSubpixel, 0);
    REPORTER_ASSERT(reporter, !treat_as_sprite(mat, size, bilerBits));
    mat.setTranslate(0, tooMuchSubpixel);
    REPORTER_ASSERT(reporter, !treat_as_sprite(mat, size, bilerBits));

    const SkScalar tinySubPixel = 100.02f;
    mat.setTranslate(tinySubPixel, 0);
    REPORTER_ASSERT(reporter, treat_as_sprite(mat, size, bilerBits));
    mat.setTranslate(0, tinySubPixel);
    REPORTER_ASSERT(reporter, treat_as_sprite(mat, size, bilerBits));

    const SkScalar twoThirds = SK_Scalar1 * 2 / 3;
    const SkScalar bigScale = (size.width() + twoThirds) / size.width();
    mat.setScale(bigScale, bigScale);
    REPORTER_ASSERT(reporter, !treat_as_sprite(mat, size, false));
    REPORTER_ASSERT(reporter, !treat_as_sprite(mat, size, bilerBits));

    const SkScalar oneThird = SK_Scalar1 / 3;
    const SkScalar smallScale = (size.width() + oneThird) / size.width();
    mat.setScale(smallScale, smallScale);
    REPORTER_ASSERT(reporter, treat_as_sprite(mat, size, false));
    REPORTER_ASSERT(reporter, !treat_as_sprite(mat, size, bilerBits));

    const SkScalar oneFortyth = SK_Scalar1 / 40;
    const SkScalar tinyScale = (size.width() + oneFortyth) / size.width();
    mat.setScale(tinyScale, tinyScale);
    REPORTER_ASSERT(reporter, treat_as_sprite(mat, size, false));
    REPORTER_ASSERT(reporter, treat_as_sprite(mat, size, bilerBits));
}
Esempio n. 3
0
static void textonpath_slide(SkCanvas* canvas) {
    const char* text = "Displacement";
    size_t len =strlen(text);
    SkPath path;
    path.moveTo(100, 300);
    path.quadTo(300, 100, 500, 300);
    path.offset(0, -100);

    SkPaint paint;
    paint.setAntiAlias(true);
    paint.setTextSize(40);

    paint.setStyle(SkPaint::kStroke_Style);
    canvas->drawPath(path, paint);
    paint.setStyle(SkPaint::kFill_Style);

    SkScalar x = 50;
    paint.setColor(0xFF008800);
    canvas->drawTextOnPathHV(text, len, path,
                             x, paint.getTextSize()*2/3, paint);
    paint.setColor(SK_ColorRED);
    canvas->drawTextOnPathHV(text, len, path,
                             x + 60, 0, paint);
    paint.setColor(SK_ColorBLUE);
    canvas->drawTextOnPathHV(text, len, path,
                             x + 120, -paint.getTextSize()*2/3, paint);

    path.offset(0, 200);
    paint.setTextAlign(SkPaint::kRight_Align);

    text = "Matrices";
    len = strlen(text);
    SkScalar pathLen = getpathlen(path);
    SkMatrix matrix;

    paint.setColor(SK_ColorBLACK);
    paint.setStyle(SkPaint::kStroke_Style);
    canvas->drawPath(path, paint);
    paint.setStyle(SkPaint::kFill_Style);

    paint.setTextSize(50);
    canvas->drawTextOnPath(text, len, path, NULL, paint);

    paint.setColor(SK_ColorRED);
    matrix.setScale(-SK_Scalar1, SK_Scalar1);
    matrix.postTranslate(pathLen, 0);
    canvas->drawTextOnPath(text, len, path, &matrix, paint);

    paint.setColor(SK_ColorBLUE);
    matrix.setScale(SK_Scalar1, -SK_Scalar1);
    canvas->drawTextOnPath(text, len, path, &matrix, paint);

    paint.setColor(0xFF008800);
    matrix.setScale(-SK_Scalar1, -SK_Scalar1);
    matrix.postTranslate(pathLen, 0);
    canvas->drawTextOnPath(text, len, path, &matrix, paint);
}
Esempio n. 4
0
   void setWHZ(int width, int height, int zoom) {
        fZoom = zoom;
        fBounds.set(0, 0, SkIntToScalar(width * zoom), SkIntToScalar(height * zoom));
        fMatrix.setScale(SkIntToScalar(zoom), SkIntToScalar(zoom));
        fInverse.setScale(SK_Scalar1 / zoom, SK_Scalar1 / zoom);
        fShader.reset(sk_tool_utils::create_checkerboard_shader(
                              0xFFCCCCCC, 0xFFFFFFFF, zoom));

        SkImageInfo info = SkImageInfo::MakeN32Premul(width, height);
        fMinSurface.reset(SkSurface::NewRaster(info));
        info = info.makeWH(width * zoom, height * zoom);
        fMaxSurface.reset(SkSurface::NewRaster(info));
    }
Esempio n. 5
0
static void test_decompScale(skiatest::Reporter* reporter) {
    SkMatrix m;

    m.reset();
    REPORTER_ASSERT(reporter, check_decompScale(m));
    m.setScale(2, 3);
    REPORTER_ASSERT(reporter, check_decompScale(m));
    m.setRotate(35, 0, 0);
    REPORTER_ASSERT(reporter, check_decompScale(m));

    m.setScale(1, 0);
    REPORTER_ASSERT(reporter, !check_decompScale(m));
}
Esempio n. 6
0
    void makeMatrices() {
        {
        SkMatrix m;
        m.setIdentity();
        fMatrices.push_back(m);
        }

        {
        SkMatrix m;
        m.setScale(SkIntToScalar(3), SkIntToScalar(2));
        fMatrices.push_back(m);
        }

        {
        SkMatrix m;
        m.setScale(SkIntToScalar(2), SkIntToScalar(2));
        fMatrices.push_back(m);
        }

        {
        SkMatrix m;
        m.setScale(SkIntToScalar(1), SkIntToScalar(2));
        fMatrices.push_back(m);
        }

        {
        SkMatrix m;
        m.setScale(SkIntToScalar(4), SkIntToScalar(1));
        fMatrices.push_back(m);
        }

        {
        SkMatrix m;
        m.setRotate(SkIntToScalar(90));
        fMatrices.push_back(m);
        }

        {
        SkMatrix m;
        m.setSkew(SkIntToScalar(2), SkIntToScalar(3));
        fMatrices.push_back(m);
        }

        {
        SkMatrix m;
        m.setRotate(SkIntToScalar(60));
        fMatrices.push_back(m);
        }
    }
Esempio n. 7
0
void SkPDFDevice::internalDrawBitmap(const SkMatrix& matrix,
                                     const SkBitmap& bitmap,
                                     const SkIRect* srcRect,
                                     const SkPaint& paint) {
    SkIRect subset = SkIRect::MakeWH(bitmap.width(), bitmap.height());
    if (srcRect && !subset.intersect(*srcRect))
        return;

    SkPDFImage* image = SkPDFImage::CreateImage(bitmap, subset, paint);
    if (!image)
        return;

    SkMatrix scaled;
    // Adjust for origin flip.
    scaled.setScale(1, -1);
    scaled.postTranslate(0, 1);
    // Scale the image up from 1x1 to WxH.
    scaled.postScale(SkIntToScalar(subset.width()),
                     SkIntToScalar(subset.height()));
    scaled.postConcat(matrix);
    SkMatrix curTransform = setTransform(scaled);
    updateGSFromPaint(paint, false);

    fXObjectResources.push(image);  // Transfer reference.
    fContent.writeText("/X");
    fContent.writeDecAsText(fXObjectResources.count() - 1);
    fContent.writeText(" Do\n");
    setTransform(curTransform);
}
Esempio n. 8
0
DEF_TEST(RecordDraw_SetMatrixClobber, r) {
    // Set up an SkRecord that just scales by 2x,3x.
    SkRecord scaleRecord;
    SkRecorder scaleCanvas(&scaleRecord, W, H);
    SkMatrix scale;
    scale.setScale(2, 3);
    scaleCanvas.setMatrix(scale);

    // Set up an SkRecord with an initial +20, +20 translate.
    SkRecord translateRecord;
    SkRecorder translateCanvas(&translateRecord, W, H);
    SkMatrix translate;
    translate.setTranslate(20, 20);
    translateCanvas.setMatrix(translate);

    SkRecordDraw(scaleRecord, &translateCanvas, nullptr, nullptr, 0, nullptr/*bbh*/, nullptr/*callback*/);
    REPORTER_ASSERT(r, 4 == translateRecord.count());
    assert_type<SkRecords::SetMatrix>(r, translateRecord, 0);
    assert_type<SkRecords::Save>     (r, translateRecord, 1);
    assert_type<SkRecords::SetMatrix>(r, translateRecord, 2);
    assert_type<SkRecords::Restore>  (r, translateRecord, 3);

    // When we look at translateRecord now, it should have its first +20,+20 translate,
    // then a 2x,3x scale that's been concatted with that +20,+20 translate.
    const SkRecords::SetMatrix* setMatrix;
    setMatrix = assert_type<SkRecords::SetMatrix>(r, translateRecord, 0);
    REPORTER_ASSERT(r, setMatrix->matrix == translate);

    setMatrix = assert_type<SkRecords::SetMatrix>(r, translateRecord, 2);
    SkMatrix expected = scale;
    expected.postConcat(translate);
    REPORTER_ASSERT(r, setMatrix->matrix == expected);
}
Esempio n. 9
0
    virtual void onDraw(SkCanvas* canvas) {
        this->drawBG(canvas);

        SkMatrix matrix;

        SkGroupShape* gs = new SkGroupShape;
        SkAutoUnref aur(gs);
        gs->appendShape(&fGroup);
        matrix.setScale(-SK_Scalar1, SK_Scalar1);
        matrix.postTranslate(SkIntToScalar(220), SkIntToScalar(240));
        gs->appendShape(&fGroup, matrix);
        matrix.setTranslate(SkIntToScalar(240), 0);
        matrix.preScale(SK_Scalar1*2, SK_Scalar1*2);
        gs->appendShape(&fGroup, matrix);

#if 1
        SkPicture* pict = new SkPicture;
        SkCanvas* cv = pict->beginRecording(1000, 1000);
        cv->scale(SK_ScalarHalf, SK_ScalarHalf);
        gs->draw(cv);
        cv->translate(SkIntToScalar(680), SkIntToScalar(480));
        cv->scale(-SK_Scalar1, SK_Scalar1);
        gs->draw(cv);
        pict->endRecording();
        canvas->drawPicture(*pict);
        pict->unref();
#endif
}
Esempio n. 10
0
static void r7(SkLayerRasterizer* rast, SkPaint& p) {
    SkMatrix    lattice;
    lattice.setScale(SK_Scalar1*6, SK_Scalar1*6, 0, 0);
    lattice.postSkew(SK_Scalar1/3, 0, 0, 0);
    p.setPathEffect(new Dot2DPathEffect(SK_Scalar1*4, lattice))->unref();
    rast->addLayer(p);
}
Esempio n. 11
0
static SkPathEffect* makepe(float interp, SkTDArray<SkPoint>* pts) {
    SkMatrix    lattice;
    SkScalar    rad = 3 + SkIntToScalar(4) * (1 - interp);
    lattice.setScale(rad*2, rad*2, 0, 0);
    lattice.postSkew(SK_Scalar1/3, 0, 0, 0);
    return new Dot2DPathEffect(rad, lattice, pts);
}
Esempio n. 12
0
    virtual void onDraw(SkCanvas* canvas) {
        this->drawBG(canvas);
        
        SkMatrix saveM = *fMatrixRefs[3];
        SkScalar c = SkIntToScalar(50);
        fMatrixRefs[3]->preRotate(SkIntToScalar(30), c, c);
        
        SkMatrix matrix;
     
        SkGroupShape* gs = new SkGroupShape;
        SkAutoUnref aur(gs);
        gs->appendShape(&fGroup);
        matrix.setScale(-SK_Scalar1, SK_Scalar1);
        matrix.postTranslate(SkIntToScalar(220), SkIntToScalar(240));
        gs->appendShape(&fGroup, matrix);
        matrix.setTranslate(SkIntToScalar(240), 0);
        matrix.preScale(SK_Scalar1*2, SK_Scalar1*2);
        gs->appendShape(&fGroup, matrix);
        
#if 0        
        canvas->drawShape(gs);
#else
        SkPicture pict;
        SkCanvas* cv = pict.beginRecording(1000, 1000);
        cv->scale(SK_ScalarHalf, SK_ScalarHalf);
        cv->drawShape(gs);
        cv->translate(SkIntToScalar(680), SkIntToScalar(480));
        cv->scale(-SK_Scalar1, SK_Scalar1);
        cv->drawShape(gs);
        pict.endRecording();
        canvas->drawPicture(pict);
#endif

        *fMatrixRefs[3] = saveM;
}
Esempio n. 13
0
static void make_strip(Rec* rec, int texWidth, int texHeight) {
    const SkScalar tx = SkIntToScalar(texWidth);
    const SkScalar ty = SkIntToScalar(texHeight);
    const int n = 24;

    rec->fMode = SkCanvas::kTriangleStrip_VertexMode;
    rec->fCount = 2 * (n + 1);
    rec->fVerts = new SkPoint[rec->fCount];
    rec->fTexs  = new SkPoint[rec->fCount];

    SkPoint* v = rec->fVerts;
    SkPoint* t = rec->fTexs;

    for (int i = 0; i < n; i++) {
        SkScalar cos;
        SkScalar sin = SkScalarSinCos(SK_ScalarPI * 2 * i / n, &cos);
        v[i*2 + 0].set(cos/2, sin/2);
        v[i*2 + 1].set(cos, sin);

        t[i*2 + 0].set(tx * i / n, ty);
        t[i*2 + 1].set(tx * i / n, 0);
    }
    v[2*n + 0] = v[0];
    v[2*n + 1] = v[1];

    t[2*n + 0].set(tx, ty);
    t[2*n + 1].set(tx, 0);

    SkMatrix m;
    m.setScale(SkIntToScalar(100), SkIntToScalar(100));
    m.postTranslate(SkIntToScalar(110), SkIntToScalar(110));
    m.mapPoints(v, rec->fCount);
}
// Set a bitmap shader that mimics dashing by width-on, width-off.
// Returns false if it could not succeed (e.g. there was an existing shader)
static bool setBitmapDash(SkPaint* paint, int width) {
    if (width <= 0 || paint->getShader())
        return false;

    SkColor c = paint->getColor();

    SkBitmap bm;
    bm.setConfig(SkBitmap::kARGB_8888_Config, 2, 1);
    bm.allocPixels();
    bm.lockPixels();

    // set the ON pixel
    *bm.getAddr32(0, 0) = SkPreMultiplyARGB(0xFF, SkColorGetR(c),
                                            SkColorGetG(c), SkColorGetB(c));
    // set the OFF pixel
    *bm.getAddr32(1, 0) = 0;
    bm.unlockPixels();

    SkMatrix matrix;
    matrix.setScale(SkIntToScalar(width), SK_Scalar1);

    SkShader* s = SkShader::CreateBitmapShader(bm, SkShader::kRepeat_TileMode,
                                               SkShader::kClamp_TileMode);
    s->setLocalMatrix(matrix);

    paint->setShader(s)->unref();
    return true;
}
Esempio n. 15
0
 void draw(SkCanvas* canvas,
           const SkRect& rect,
           const SkSize& deviceSize,
           SkPaint::FilterLevel filterLevel,
           SkImageFilter* input = NULL) {
     SkRect dstRect;
     canvas->getTotalMatrix().mapRect(&dstRect, rect);
     canvas->save();
     SkScalar deviceScaleX = SkScalarDiv(deviceSize.width(), dstRect.width());
     SkScalar deviceScaleY = SkScalarDiv(deviceSize.height(), dstRect.height());
     canvas->translate(rect.x(), rect.y());
     canvas->scale(deviceScaleX, deviceScaleY);
     canvas->translate(-rect.x(), -rect.y());
     SkMatrix matrix;
     matrix.setScale(SkScalarInvert(deviceScaleX),
                     SkScalarInvert(deviceScaleY));
     SkAutoTUnref<SkImageFilter> imageFilter(
         SkMatrixImageFilter::Create(matrix, filterLevel, input));
     SkPaint filteredPaint;
     filteredPaint.setImageFilter(imageFilter.get());
     canvas->saveLayer(&rect, &filteredPaint);
     SkPaint paint;
     paint.setColor(0xFF00FF00);
     SkRect ovalRect = rect;
     ovalRect.inset(SkIntToScalar(4), SkIntToScalar(4));
     canvas->drawOval(ovalRect, paint);
     canvas->restore(); // for saveLayer
     canvas->restore();
 }
Esempio n. 16
0
    void make_fan(Rec* rec, int texWidth, int texHeight) {
        const SkScalar tx = SkIntToScalar(texWidth);
        const SkScalar ty = SkIntToScalar(texHeight);
        const int n = 24;

        rec->fMode = SkCanvas::kTriangleFan_VertexMode;
        rec->fCount = n + 2;
        rec->fVerts = new SkPoint[rec->fCount];
        rec->fTexs  = new SkPoint[rec->fCount];

        SkPoint* v = rec->fVerts;
        SkPoint* t = rec->fTexs;

        v[0].set(0, 0);
        t[0].set(0, 0);
        for (int i = 0; i < n; i++) {
            SkScalar cos;
            SkScalar sin = SkScalarSinCos(SK_ScalarPI * 2 * i / n, &cos);
            v[i+1].set(cos, sin);
            t[i+1].set(i*tx/n, ty);
        }
        v[n+1] = v[1];
        t[n+1].set(tx, ty);

        SkMatrix m;
        m.setScale(SkIntToScalar(100), SkIntToScalar(100));
        m.postTranslate(SkIntToScalar(110), SkIntToScalar(110));
        m.mapPoints(v, rec->fCount);
    }
Esempio n. 17
0
    static SkMatrix TestMatrix() {
        SkMatrix matrix;
        matrix.reset();
        matrix.setScale(SkIntToScalar(2), SkIntToScalar(3));

        return matrix;
    }
Esempio n. 18
0
 SkMatrix onGetInitialTransform() const override {
     SkMatrix result;
     SkScalar scale = 0.8f;
     result.setScale(scale, scale);
     result.postTranslate(SkIntToScalar(7), SkIntToScalar(23));
     return result;
 }
Esempio n. 19
0
    void onDraw(SkCanvas* canvas) override {
        // The PDF device has already clipped to the content area, but we
        // do it again here so that the raster and pdf results are consistent.
        canvas->clipRect(SkRect::MakeWH(SkIntToScalar(320),
                                        SkIntToScalar(240)));

        SkMatrix canvasScale;
        SkScalar scale = 0.7f;
        canvasScale.setScale(scale, scale);
        canvas->concat(canvasScale);

        // Background shader.
        SkPaint paint;
        paint.setShader(MakeShader(559, 387, false))->unref();
        SkRect r = SkRect::MakeXYWH(SkIntToScalar(-12), SkIntToScalar(-41),
                                    SkIntToScalar(571), SkIntToScalar(428));
        canvas->drawRect(r, paint);

        // Constrained shader.
        paint.setShader(MakeShader(101, 151, true))->unref();
        r = SkRect::MakeXYWH(SkIntToScalar(43), SkIntToScalar(71),
                             SkIntToScalar(101), SkIntToScalar(151));
        canvas->clipRect(r);
        canvas->drawRect(r, paint);
    }
Esempio n. 20
0
static void r7(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p) {
    SkMatrix    lattice;
    lattice.setScale(SK_Scalar1*6, SK_Scalar1*6, 0, 0);
    lattice.postSkew(SK_Scalar1/3, 0, 0, 0);
    p.setPathEffect(MakeDotEffect(SK_Scalar1*4, lattice));
    rastBuilder->addLayer(p);
}
Esempio n. 21
0
static void draw_gradients(SkCanvas* canvas,
                           sk_sp<SkShader> (*makeShader)(const SkPoint[2], const SkMatrix&),
                           const SkPoint ptsArray[][2], int numImages) {
    // Use some nice prime numbers for the rectangle and matrix with
    // different scaling along the x and y axes (which is the bug this
    // test addresses, where incorrect order of operations mixed up the axes)
    SkRect rectGrad = {
        SkIntToScalar(43),  SkIntToScalar(61),
        SkIntToScalar(181), SkIntToScalar(167) };
    SkMatrix shaderMat;
    shaderMat.setScale(rectGrad.width(), rectGrad.height());
    shaderMat.postTranslate(rectGrad.left(), rectGrad.top());

    canvas->save();
    for (int i = 0; i < numImages; i++) {
        // Advance line downwards if necessary.
        if (i % IMAGES_X == 0 && i != 0) {
            canvas->restore();
            canvas->translate(0, TESTGRID_Y);
            canvas->save();
        }

        SkPaint paint;
        paint.setShader(makeShader(*ptsArray, shaderMat));
        canvas->drawRect(rectGrad, paint);

        // Advance to next position.
        canvas->translate(TESTGRID_X, 0);
        ptsArray++;
    }
    canvas->restore();
}
static void test_transform(skiatest::Reporter* reporter) {
    SkPath p, p1;
    
    static const SkPoint pts[] = {
        { 0, 0 },
        { SkIntToScalar(10), SkIntToScalar(10) },
        { SkIntToScalar(20), SkIntToScalar(10) }, { SkIntToScalar(20), 0 },
        { 0, 0 }, { 0, SkIntToScalar(10) }, { SkIntToScalar(1), SkIntToScalar(10) }
    };
    p.moveTo(pts[0]);
    p.lineTo(pts[1]);
    p.quadTo(pts[2], pts[3]);
    p.cubicTo(pts[4], pts[5], pts[6]);
    
    SkMatrix matrix;
    matrix.reset();
    p.transform(matrix, &p1);
    REPORTER_ASSERT(reporter, p == p1);
    
    matrix.setScale(SK_Scalar1 * 2, SK_Scalar1 * 3);
    p.transform(matrix, &p1);
    SkPoint pts1[7];
    int count = p1.getPoints(pts1, 7);
    REPORTER_ASSERT(reporter, 7 == count);
    for (int i = 0; i < count; ++i) {
        SkPoint newPt = SkPoint::Make(pts[i].fX * 2, pts[i].fY * 3);
        REPORTER_ASSERT(reporter, newPt == pts1[i]);
    }
}
Esempio n. 23
0
    virtual void onDraw(SkCanvas* canvas) {

        SkPoint pts[2] = {
            { 0, 0 },
            { SkIntToScalar(100), SkIntToScalar(100) }
        };
        SkShader::TileMode tm = SkShader::kClamp_TileMode;
        SkRect r = { 0, 0, SkIntToScalar(100), SkIntToScalar(100) };
        SkPaint paint;
        paint.setAntiAlias(true);
        paint.setDither(fDither);

        canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
        for (size_t i = 0; i < SK_ARRAY_COUNT(gGradData); i++) {
            canvas->save();
            for (size_t j = 0; j < SK_ARRAY_COUNT(gGradMakers); j++) {
                SkMatrix scale = SkMatrix::I();

                if (i == 5) { // if the clamp case
                    scale.setScale(0.5f, 0.5f);
                    scale.postTranslate(25.f, 25.f);
                }

                paint.setShader(gGradMakers[j](pts, gGradData[i], tm, scale));
                canvas->drawRect(r, paint);
                canvas->translate(0, SkIntToScalar(120));
            }
            canvas->restore();
            canvas->translate(SkIntToScalar(120), 0);
        }
    }
static void scale_to_width(SkPath* path, SkScalar dstWidth) {
    const SkRect& bounds = path->getBounds();
    SkScalar scale = dstWidth / bounds.width();
    SkMatrix matrix;

    matrix.setScale(scale, scale);
    path->transform(matrix);
}
Esempio n. 25
0
static void setup_matrices(int numQuads, Func f) {
    // We draw a really small triangle so we are not fill rate limited
    for (int i = 0 ; i < numQuads; i++) {
        SkMatrix m = SkMatrix::I();
        m.setScale(0.0001f, 0.0001f);
        f(m);
    }
}
Esempio n. 26
0
void Matrix::NativeSetScale(
    /* [in] */ Int64 nObj,
    /* [in] */ Float sx,
    /* [in] */ Float sy)
{
    SkMatrix* obj = reinterpret_cast<SkMatrix*>(nObj);
    obj->setScale(sx, sy);
}
Esempio n. 27
0
void GrDrawPathRangeBatch::onDraw(GrBatchFlushState* state, const SkRect& bounds) {
    const Draw& head = *fDraws.head();

    SkMatrix drawMatrix(this->viewMatrix());
    drawMatrix.preScale(fScale, fScale);
    drawMatrix.preTranslate(head.fX, head.fY);

    SkMatrix localMatrix;
    localMatrix.setScale(fScale, fScale);
    localMatrix.preTranslate(head.fX, head.fY);

    SkAutoTUnref<GrPathProcessor> pathProc(GrPathProcessor::Create(this->color(),
                                                                   this->overrides(),
                                                                   drawMatrix,
                                                                   localMatrix));

    if (fDraws.count() == 1) {
        const InstanceData& instances = *head.fInstanceData;
        state->gpu()->pathRendering()->drawPaths(*this->pipeline(),
                                                 *pathProc,
                                                 this->stencilPassSettings(),
                                                 fPathRange.get(),
                                                 instances.indices(),
                                                 GrPathRange::kU16_PathIndexType,
                                                 instances.transformValues(),
                                                 instances.transformType(),
                                                 instances.count());
    } else {
        int floatsPerTransform = GrPathRendering::PathTransformSize(this->transformType());
        SkAutoSTMalloc<4096, float> transformStorage(floatsPerTransform * fTotalPathCount);
        SkAutoSTMalloc<2048, uint16_t> indexStorage(fTotalPathCount);
        int idx = 0;
        for (DrawList::Iter iter(fDraws); iter.get(); iter.next()) {
            const Draw& draw = *iter.get();
            const InstanceData& instances = *draw.fInstanceData;
            memcpy(&indexStorage[idx], instances.indices(), instances.count() * sizeof(uint16_t));
            pre_translate_transform_values(instances.transformValues(), this->transformType(),
                                           instances.count(),
                                           draw.fX - head.fX, draw.fY - head.fY,
                                           &transformStorage[floatsPerTransform * idx]);
            idx += instances.count();

            // TODO: Support mismatched transform types if we start using more types other than 2D.
            SkASSERT(instances.transformType() == this->transformType());
        }
        SkASSERT(idx == fTotalPathCount);

        state->gpu()->pathRendering()->drawPaths(*this->pipeline(),
                                                 *pathProc,
                                                 this->stencilPassSettings(),
                                                 fPathRange.get(),
                                                 indexStorage,
                                                 GrPathRange::kU16_PathIndexType,
                                                 transformStorage,
                                                 this->transformType(),
                                                 fTotalPathCount);
    }
}
Esempio n. 28
0
    virtual void onDraw(SkCanvas* canvas) {
        SkMatrix m;
        m.reset();
        m.setRotate(33 * SK_Scalar1);
        m.postScale(3000 * SK_Scalar1, 3000 * SK_Scalar1);
        m.postTranslate(6000 * SK_Scalar1, -5000 * SK_Scalar1);
        canvas->concat(m);

        SkPaint paint;
        paint.setColor(SK_ColorRED);
        paint.setAntiAlias(true);

        bool success = m.invert(&m);
        SkASSERT(success);
        (void) success; // silence compiler :(

        SkPath path;

        SkPoint pt = {10 * SK_Scalar1, 10 * SK_Scalar1};
        SkScalar small = 1 / (500 * SK_Scalar1);

        m.mapPoints(&pt, 1);
        path.addCircle(pt.fX, pt.fY, small);
        canvas->drawPath(path, paint);

        pt.set(30 * SK_Scalar1, 10 * SK_Scalar1);
        m.mapPoints(&pt, 1);
        SkRect rect = {pt.fX - small, pt.fY - small,
                       pt.fX + small, pt.fY + small};
        canvas->drawRect(rect, paint);

        SkBitmap bmp;
        bmp.setConfig(SkBitmap::kARGB_8888_Config, 2, 2);
        bmp.allocPixels();
        bmp.lockPixels();
        uint32_t* pixels = reinterpret_cast<uint32_t*>(bmp.getPixels());
        pixels[0] = SkPackARGB32(0xFF, 0xFF, 0x00, 0x00);
        pixels[1] = SkPackARGB32(0xFF, 0x00, 0xFF, 0x00);
        pixels[2] = SkPackARGB32(0x80, 0x00, 0x00, 0x00);
        pixels[3] = SkPackARGB32(0xFF, 0x00, 0x00, 0xFF);
        bmp.unlockPixels();
        pt.set(30 * SK_Scalar1, 30 * SK_Scalar1);
        m.mapPoints(&pt, 1);
        SkShader* shader = SkShader::CreateBitmapShader(
                                            bmp,
                                            SkShader::kRepeat_TileMode,
                                            SkShader::kRepeat_TileMode);
        SkMatrix s;
        s.reset();
        s.setScale(SK_Scalar1 / 1000, SK_Scalar1 / 1000);
        shader->setLocalMatrix(s);
        paint.setShader(shader)->unref();
        paint.setAntiAlias(false);
        paint.setFilterLevel(SkPaint::kLow_FilterLevel);
        rect.setLTRB(pt.fX - small, pt.fY - small,
                     pt.fX + small, pt.fY + small);
        canvas->drawRect(rect, paint);
    }
Esempio n. 29
0
// Create a selection of imagefilter-based paints to test
static void create_paints(SkImageFilter* source, SkTArray<SkPaint>* paints) {
    {
        SkMatrix scale;
        scale.setScale(2.0f, 2.0f);

        SkAutoTUnref<SkImageFilter> scaleMIF(
            SkImageFilter::CreateMatrixFilter(scale, kLow_SkFilterQuality, source));

        add_paint(scaleMIF, paints);
    }

    {
        SkMatrix rot;
        rot.setRotate(-33.3f);

        SkAutoTUnref<SkImageFilter> rotMIF(
            SkImageFilter::CreateMatrixFilter(rot, kLow_SkFilterQuality, source));

        add_paint(rotMIF, paints);
    }

    {
        static const SkDropShadowImageFilter::ShadowMode kBoth =
                    SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode;

        SkAutoTUnref<SkDropShadowImageFilter> dsif(
            SkDropShadowImageFilter::Create(10.0f, 10.0f,
                                            3.0f, 3.0f,
                                            SK_ColorRED, kBoth,
                                            source, nullptr));

        add_paint(dsif, paints);
    }

    {
        SkAutoTUnref<SkDropShadowImageFilter> dsif(
            SkDropShadowImageFilter::Create(27.0f, 27.0f,
                                            3.0f, 3.0f,
                                            SK_ColorRED,
                                            SkDropShadowImageFilter::kDrawShadowOnly_ShadowMode,
                                            source, nullptr));

        add_paint(dsif, paints);
    }

    {
        SkAutoTUnref<SkBlurImageFilter> bif(SkBlurImageFilter::Create(3, 3, source));

        add_paint(bif, paints);
    }

    {
        SkAutoTUnref<SkOffsetImageFilter> oif(SkOffsetImageFilter::Create(15, 15, source));

        add_paint(oif, paints);
    }
}
Esempio n. 30
0
static SkPathEffect* MakeTileEffect() {
    SkMatrix m;
    m.setScale(SkIntToScalar(12), SkIntToScalar(12));

    SkPath path;
    path.addCircle(0, 0, SkIntToScalar(5));

    return SkPath2DPathEffect::Create(m, path);
}