Example #1
0
static void show_fill(SkCanvas* canvas, bool doAA) {
    SkRandom rand;
    SkPaint paint;
    paint.setAntiAlias(doAA);
    
    for (int i = 0; i < 50; ++i) {
        SkRect r;
        SkPath p;
        
        r.setXYWH(rand.nextSScalar1() * W, rand.nextSScalar1() * H,
                  rand.nextUScalar1() * W, rand.nextUScalar1() * H);
        paint.setColor(rand.nextU());
        canvas->drawRect(r, paint);
        
        r.setXYWH(rand.nextSScalar1() * W, rand.nextSScalar1() * H,
                  rand.nextUScalar1() * W, rand.nextUScalar1() * H);
        paint.setColor(rand.nextU());
        p.addOval(r);
        canvas->drawPath(p, paint);
    }
}
Example #2
0
static SkScalar draw_row(SkCanvas* canvas, const SkBitmap& bm) {
    SkAutoCanvasRestore acr(canvas, true);

    SkPaint paint;
    SkScalar x = 0;
    const int scale = 32;

    paint.setAntiAlias(true);
    const char* name = sk_tool_utils::colortype_name(bm.colorType());
    canvas->drawText(name, strlen(name), x, SkIntToScalar(bm.height())*scale*5/8,
                     paint);
    canvas->translate(SkIntToScalar(48), 0);

    canvas->scale(SkIntToScalar(scale), SkIntToScalar(scale));

    x += draw_set(canvas, bm, 0, &paint);
    paint.reset();
    paint.setAlpha(0x80);
    draw_set(canvas, bm, x, &paint);
    return x * scale / 3;
}
Example #3
0
static void texteffect_slide(SkCanvas* canvas) {
    const char* str = "Google";
    size_t len = strlen(str);
    SkScalar x = 20;
    SkScalar y = 80;
    SkPaint paint;
    paint.setTypeface(SkTypeface::MakeFromName("Georgia",
                                               SkFontStyle::FromOldStyle(SkTypeface::kItalic)));
    paint.setTextSize(75);
    paint.setAntiAlias(true);
    paint.setColor(SK_ColorBLUE);
    for (size_t i = 0; i < SK_ARRAY_COUNT(gRastProcs); i++) {
        apply_shader(&paint, (int)i);
        canvas->drawText(str, len, x, y, paint);
        y += 80;
        if (i == 4) {
            x += 320;
            y = 80;
        }
    }
}
Example #4
0
    void onDraw(SkCanvas* canvas) override {
        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);

        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++) {
                paint.setShader(gGradMakers[j](pts, gGradData[i], tm));
                canvas->drawRect(r, paint);
                canvas->translate(0, SkIntToScalar(120));
            }
            canvas->restore();
            canvas->translate(SkIntToScalar(120), 0);
        }
    }
    SkBitmap createRandomCharIcon() {
        int size = cardHeight - (dp(10) * 2);
        SkBitmap bitmap = TestUtils::createSkBitmap(size, size);
        SkCanvas canvas(bitmap);
        canvas.clear(0);

        SkPaint paint;
        paint.setAntiAlias(true);
        SkColor randomColor = BrightColors[rand() % BrightColorsCount];
        paint.setColor(randomColor);
        canvas.drawCircle(size / 2, size / 2, size / 2, paint);

        bool bgDark = SkColorGetR(randomColor) + SkColorGetG(randomColor) + SkColorGetB(randomColor)
                < 128 * 3;
        paint.setColor(bgDark ? Color::White : Color::Grey_700);
        paint.setTextAlign(SkPaint::kCenter_Align);
        paint.setTextSize(size / 2);
        char charToShow = 'A' + (rand() % 26);
        canvas.drawText(&charToShow, 1, size / 2, /*approximate centering*/ size * 0.7, paint);
        return bitmap;
    }
Example #6
0
static SkBitmap createBitmap(int n) {
    SkBitmap bitmap;
    bitmap.allocN32Pixels(n, n);
    bitmap.eraseColor(SK_ColorGREEN);

    SkCanvas canvas(bitmap);
    SkRect r;
    r.set(0, 0, SkIntToScalar(n), SkIntToScalar(n));
    SkPaint paint;
    paint.setAntiAlias(true);

    paint.setColor(SK_ColorRED);
    canvas.drawOval(r, paint);
    paint.setColor(SK_ColorBLUE);
    paint.setStrokeWidth(SkIntToScalar(n)/15);
    paint.setStyle(SkPaint::kStroke_Style);
    canvas.drawLine(0, 0, r.fRight, r.fBottom, paint);
    canvas.drawLine(0, r.fBottom, r.fRight, 0, paint);

    return bitmap;
}
Example #7
0
static void test_drawPathEmpty(skiatest::Reporter*, SkCanvas* canvas) {
    // Filling an empty path should not crash.
    SkPaint paint;
    canvas->drawRect(SkRect(), paint);
    canvas->drawPath(SkPath(), paint);
    canvas->drawOval(SkRect(), paint);
    canvas->drawRect(SkRect(), paint);
    canvas->drawRRect(SkRRect(), paint);

    // Stroking an empty path should not crash.
    paint.setAntiAlias(true);
    paint.setStyle(SkPaint::kStroke_Style);
    paint.setColor(SK_ColorGRAY);
    paint.setStrokeWidth(SkIntToScalar(20));
    paint.setStrokeJoin(SkPaint::kRound_Join);
    canvas->drawRect(SkRect(), paint);
    canvas->drawPath(SkPath(), paint);
    canvas->drawOval(SkRect(), paint);
    canvas->drawRect(SkRect(), paint);
    canvas->drawRRect(SkRRect(), paint);
}
Example #8
0
/*
 *  Inspired by http://code.google.com/p/chromium/issues/detail?id=112145
 */
static void flower(SkCanvas* canvas, const SkPath& path,
                   SkScalar intervals[2], SkPaint::Join join) {
        SkPathEffect* pe = SkDashPathEffect::Create(intervals, 2, 0);

        SkPaint paint;
        paint.setAntiAlias(true);
        paint.setStyle(SkPaint::kStroke_Style);
        paint.setStrokeJoin(join);
        paint.setStrokeWidth(42);
        canvas->drawPath(path, paint);

        paint.setColor(SK_ColorRED);
        paint.setStrokeWidth(21);
        paint.setPathEffect(pe)->unref();
        canvas->drawPath(path, paint);

        paint.setColor(SK_ColorGREEN);
        paint.setPathEffect(nullptr);
        paint.setStrokeWidth(0);
        canvas->drawPath(path, paint);
}
Example #9
0
    virtual void onDraw(const int loops, SkCanvas* canvas) {
        SkPaint paint;
        this->setupPaint(&paint);

        paint.setAntiAlias(true);

        SkRandom rand;
        for (int i = 0; i < loops; i++) {
            SkRect r = SkRect::MakeWH(rand.nextUScalar1() * 400,
                                      rand.nextUScalar1() * 400);
            r.offset(fRadius, fRadius);

            if (fRadius > 0) {
                SkMaskFilter* mf = SkBlurMaskFilter::Create(fStyle,
                                            SkBlurMask::ConvertRadiusToSigma(fRadius),
                                            fFlags);
                paint.setMaskFilter(mf)->unref();
            }
            canvas->drawOval(r, paint);
        }
    }
Example #10
0
static void drawSomething(SkCanvas* canvas) {
    SkPaint paint;

    canvas->save();
    canvas->scale(0.5f, 0.5f);
    canvas->drawBitmap(make_bitmap(), 0, 0, NULL);
    canvas->restore();

    const char beforeStr[] = "before circle";
    const char afterStr[] = "after circle";

    paint.setAntiAlias(true);

    paint.setColor(SK_ColorRED);
    canvas->drawData(beforeStr, sizeof(beforeStr));
    canvas->drawCircle(SkIntToScalar(kBitmapSize/2), SkIntToScalar(kBitmapSize/2), SkIntToScalar(kBitmapSize/3), paint);
    canvas->drawData(afterStr, sizeof(afterStr));
    paint.setColor(SK_ColorBLACK);
    paint.setTextSize(SkIntToScalar(kBitmapSize/3));
    canvas->drawText("Picture", 7, SkIntToScalar(kBitmapSize/2), SkIntToScalar(kBitmapSize/4), paint);
}
Example #11
0
static void
Transform(DataSourceSurface* aDest,
          DataSourceSurface* aSource,
          const gfx3DMatrix& aTransform,
          const Point& aDestOffset)
{
  if (aTransform.IsSingular()) {
    return;
  }

  IntSize destSize = aDest->GetSize();
  SkImageInfo destInfo = SkImageInfo::Make(destSize.width,
                                           destSize.height,
                                           kBGRA_8888_SkColorType,
                                           kPremul_SkAlphaType);
  SkBitmap destBitmap;
  destBitmap.setInfo(destInfo, aDest->Stride());
  destBitmap.setPixels((uint32_t*)aDest->GetData());
  SkCanvas destCanvas(destBitmap);

  IntSize srcSize = aSource->GetSize();
  SkImageInfo srcInfo = SkImageInfo::Make(srcSize.width,
                                          srcSize.height,
                                          kBGRA_8888_SkColorType,
                                          kPremul_SkAlphaType);
  SkBitmap src;
  src.setInfo(srcInfo, aSource->Stride());
  src.setPixels((uint32_t*)aSource->GetData());

  gfx3DMatrix transform = aTransform;
  transform.TranslatePost(Point3D(-aDestOffset.x, -aDestOffset.y, 0));
  destCanvas.setMatrix(Matrix3DToSkia(transform));

  SkPaint paint;
  paint.setXfermodeMode(SkXfermode::kSrc_Mode);
  paint.setAntiAlias(true);
  paint.setFilterLevel(SkPaint::kLow_FilterLevel);
  SkRect destRect = SkRect::MakeXYWH(0, 0, srcSize.width, srcSize.height);
  destCanvas.drawBitmapRectToRect(src, nullptr, destRect, &paint);
}
Example #12
0
static void paintSkBitmap(PlatformContextSkia* platformContext, const NativeImageSkia& bitmap, const SkIRect& srcRect, const SkRect& destRect, const SkXfermode::Mode& compOp)
{
#if PLATFORM(CHROMIUM)
    TRACE_EVENT("paintSkBitmap", platformContext, 0);
#endif
    SkPaint paint;
    paint.setXfermodeMode(compOp);
    paint.setAlpha(platformContext->getNormalizedAlpha());
    paint.setLooper(platformContext->getDrawLooper());
    // only antialias if we're rotated or skewed
    paint.setAntiAlias(hasNon90rotation(platformContext));

    SkCanvas* canvas = platformContext->canvas();

    ResamplingMode resampling;
    if (platformContext->isAccelerated())
        resampling = RESAMPLE_LINEAR;
    else
        resampling = platformContext->printing() ? RESAMPLE_NONE :
            computeResamplingMode(platformContext, bitmap, srcRect.width(), srcRect.height(), SkScalarToFloat(destRect.width()), SkScalarToFloat(destRect.height()));
    if (resampling == RESAMPLE_NONE) {
      // FIXME: This is to not break tests (it results in the filter bitmap flag
      // being set to true). We need to decide if we respect RESAMPLE_NONE
      // being returned from computeResamplingMode.
        resampling = RESAMPLE_LINEAR;
    }
    resampling = limitResamplingMode(platformContext, resampling);
    paint.setFilterBitmap(resampling == RESAMPLE_LINEAR);
    if (resampling == RESAMPLE_AWESOME)
        drawResampledBitmap(*canvas, paint, bitmap, srcRect, destRect);
    else {
        // No resampling necessary, we can just draw the bitmap. We want to
        // filter it if we decided to do linear interpolation above, or if there
        // is something interesting going on with the matrix (like a rotation).
        // Note: for serialization, we will want to subset the bitmap first so
        // we don't send extra pixels.
        canvas->drawBitmapRect(bitmap.bitmap(), &srcRect, destRect, &paint);
    }
    platformContext->didDrawRect(destRect, paint, &bitmap.bitmap());
}
Example #13
0
    void onDraw(SkCanvas* canvas) override {
        SkPaint paint;
        SkPath path;
        paint.setStyle(SkPaint::Style::kStroke_Style);
        canvas->translate(5.0f, 5.0f);
        const SkScalar size = 60.0f;
        for (int i = 0; i < 2; i++) {
            paint.setAntiAlias(i == 1);
            for (int j = 0; j < 4; j++) {
                SkScalar scale = 4.0f - j;
                paint.setStrokeWidth(4.0f / scale);
                canvas->save();
                canvas->translate(size / 2.0f, size / 2.0f);
                canvas->scale(scale, scale);
                draw_path(size / 2.0f / scale, canvas, paint);
                canvas->restore();

                canvas->save();
                canvas->translate(size / 2.0f, 80.0f + size / 2.0f);
                canvas->scale(scale, scale);
                canvas->drawCircle(0.0f, 0.0f, size / 2.0f / scale, paint);
                canvas->restore();

                canvas->save();
                canvas->translate(0.0f, 160.0f);
                canvas->scale(scale, scale);
                canvas->drawRect(SkRect::MakeXYWH(0.0f, 0.0f, size / scale, size / scale), paint);
                canvas->restore();

                canvas->save();
                canvas->translate(0.0f, 240.0f);
                canvas->scale(scale, scale);
                canvas->drawLine(0.0f, 0.0f, size / scale, size / scale, paint);
                canvas->restore();

                canvas->translate(80.0f, 0.0f);
            }
        }

    }
static SkPaint make_paint() {
    SkPaint paint;
    paint.setHinting(make_paint_hinting());
    paint.setAntiAlias(make_bool());
    paint.setDither(make_bool());
    paint.setLinearText(make_bool());
    paint.setSubpixelText(make_bool());
    paint.setLCDRenderText(make_bool());
    paint.setEmbeddedBitmapText(make_bool());
    paint.setAutohinted(make_bool());
    paint.setVerticalText(make_bool());
    paint.setFakeBoldText(make_bool());
    paint.setDevKernText(make_bool());
    paint.setFilterQuality(make_filter_quality());
    paint.setStyle(make_paint_style());
    paint.setColor(make_color());
    paint.setStrokeWidth(make_scalar());
    paint.setStrokeMiter(make_scalar());
    paint.setStrokeCap(make_paint_cap());
    paint.setStrokeJoin(make_paint_join());
    paint.setColorFilter(make_color_filter());
    paint.setBlendMode(make_xfermode());
    paint.setPathEffect(make_path_effect());
    paint.setMaskFilter(make_mask_filter());

    if (false) {
        // our validating buffer does not support typefaces yet, so skip this for now
        paint.setTypeface(SkTypeface::MakeFromName(make_font_name().c_str(),
                                                   make_typeface_style()));
    }

    paint.setImageFilter(make_image_filter());
    sk_sp<SkData> data(make_3Dlut(nullptr, make_bool(), make_bool(), make_bool()));
    paint.setTextAlign(make_paint_align());
    paint.setTextSize(make_scalar());
    paint.setTextScaleX(make_scalar());
    paint.setTextSkewX(make_scalar());
    paint.setTextEncoding(make_paint_text_encoding());
    return paint;
}
Example #15
0
    virtual void onDraw(SkCanvas* canvas) {
        this->drawBG(canvas);

        canvas->translate(this->width()/2, this->height()/2);

        Sk3DView    view;
        view.rotateX(fRX);
        view.rotateY(fRY);
        view.applyToCanvas(canvas);
        
        SkPaint paint;
        SkScalar rad = SkIntToScalar(50);
        SkScalar dim = rad*2;
        if (fShaders.count() > 0) {
            bool frontFace = view.dotWithNormal(0, 0, SK_Scalar1) < 0;
            if (frontFace != fFrontFace) {
                fFrontFace = frontFace;
                fShaderIndex = (fShaderIndex + 1) % fShaders.count();
            }
        
            paint.setAntiAlias(true);
            paint.setShader(fShaders[fShaderIndex]);
#if 0
            canvas->drawCircle(0, 0, rad, paint);
            canvas->drawCircle(-dim, -dim, rad, paint);
            canvas->drawCircle(-dim,  dim, rad, paint);
            canvas->drawCircle( dim, -dim, rad, paint);
            canvas->drawCircle( dim,  dim, rad, paint);
#else
            SkRect r = { -150, -150, 150, 150 };
            canvas->drawRoundRect(r, 30, 30, paint);
#endif
        }
        
        fRY += SampleCode::GetAnimSecondsDelta() * 90;
        if (fRY >= SkIntToScalar(360)) {
            fRY = 0;
        }
        this->inval(NULL);
    }
Example #16
0
    virtual void onDraw(SkCanvas* canvas) {

        static const struct {
            SkColor         fColor;
            const char*     fName;
            SkRegion::Op    fOp;
        } gOps[] = {
            { SK_ColorBLACK,    "Difference", SkRegion::kDifference_Op    },
            { SK_ColorRED,      "Intersect",  SkRegion::kIntersect_Op     },
            { 0xFF008800,       "Union",      SkRegion::kUnion_Op         },
            { SK_ColorGREEN,    "Rev Diff",   SkRegion::kReverseDifference_Op },
            { SK_ColorYELLOW,   "Replace",    SkRegion::kReplace_Op       },
            { SK_ColorBLUE,     "XOR",        SkRegion::kXOR_Op           },
        };

        SkPaint textPaint;
        textPaint.setAntiAlias(true);
        textPaint.setTextSize(SK_Scalar1*24);
        int xOff = 0;

        for (size_t op = 0; op < SK_ARRAY_COUNT(gOps); op++) {
            canvas->drawText(gOps[op].fName, strlen(gOps[op].fName),
                             SkIntToScalar(75), SkIntToScalar(50),
                             textPaint);

            if (kAAClip_GeomType == fGeomType) {
                this->drawRgnOped(canvas, gOps[op].fOp, gOps[op].fColor);
            } else {
                this->drawPathsOped(canvas, gOps[op].fOp, gOps[op].fColor);
            }

            if (xOff >= 400) {
                canvas->translate(SkIntToScalar(-400), SkIntToScalar(250));
                xOff = 0;
            } else {
                canvas->translate(SkIntToScalar(200), 0);
                xOff += 200;
            }
        }
    }
bool RenderThemeChromiumSkia::paintMenuList(RenderObject* o, const RenderObject::PaintInfo& i, const IntRect& rect)
{
    SkCanvas* const canvas = i.context->platformContext()->canvas();
    const int right = rect.x() + rect.width();
    const int middle = rect.y() + rect.height() / 2;

    paintButtonLike(this, o, i, rect);

    SkPaint paint;
    paint.setARGB(0xff, 0, 0, 0);
    paint.setAntiAlias(true);
    paint.setStyle(SkPaint::kFill_Style);

    SkPath path;
    path.moveTo(right - 13, middle - 3);
    path.rLineTo(6, 0);
    path.rLineTo(-3, 6);
    path.close();
    canvas->drawPath(path, paint);

    return false;
}
Example #18
0
static void draw_scene(SkCanvas* canvas, SkScalar pictureSize) {
    canvas->clear(SK_ColorWHITE);

    SkPaint paint;
    paint.setColor(SK_ColorGREEN);
    paint.setStyle(SkPaint::kFill_Style);
    paint.setAntiAlias(true);

    canvas->drawCircle(pictureSize / 4, pictureSize / 4, pictureSize / 4, paint);
    canvas->drawRect(SkRect::MakeXYWH(pictureSize / 2, pictureSize / 2,
                                      pictureSize / 2, pictureSize / 2), paint);

    paint.setColor(SK_ColorRED);
    canvas->drawLine(pictureSize / 2, pictureSize * 1 / 3,
                     pictureSize / 2, pictureSize * 2 / 3, paint);
    canvas->drawLine(pictureSize * 1 / 3, pictureSize / 2,
                     pictureSize * 2 / 3, pictureSize / 2, paint);

    paint.setColor(SK_ColorBLACK);
    paint.setStyle(SkPaint::kStroke_Style);
    canvas->drawRect(SkRect::MakeWH(pictureSize, pictureSize), paint);
}
Example #19
0
    void onDraw(int loops, SkCanvas* canvas) override {
        SkRandom Random;

        for (int i = 0; i < loops; i++) {
            SkScalar blurSigma = Random.nextRangeScalar(1.5f, 25.0f);
            SkScalar size = Random.nextRangeScalar(20*blurSigma, 50*blurSigma);

            SkScalar x = Random.nextRangeScalar(0.0f, W - size);
            SkScalar y = Random.nextRangeScalar(0.0f, H - size);

            SkRect inner = { x, y, x + size, y + size };

            SkRect outer(inner);
            // outer is always outset either 2x or 4x the blur radius (we go with 2x)
            outer.outset(2*blurSigma, 2*blurSigma);

            SkPath p;

            p.addRect(outer);
            p.addRect(inner);
            p.setFillType(SkPath::kEvenOdd_FillType);

            // This will be used to translate the normal draw outside the
            // clip rect and translate the blurred version back inside
            SkScalar translate = 2.0f * size;

            SkPaint paint;
            paint.setLooper(this->createLooper(-translate, blurSigma));
            paint.setColor(0xff000000 | Random.nextU());
            paint.setAntiAlias(true);

            canvas->save();
            // clip always equals inner rect so we get the inside blur
            canvas->clipRect(inner);
            canvas->translate(translate, 0);
            canvas->drawPath(p, paint);
            canvas->restore();
        }
    }
Example #20
0
    virtual void onDrawContent(SkCanvas* canvas) {
        SkPaint paint;
        paint.setAntiAlias(true);
        paint.setStrokeWidth(SkIntToScalar(4));
        paint.setTextSize(SkIntToScalar(40));
        paint.setTextAlign(SkPaint::kCenter_Align);

        canvas->save();
        canvas->translate(SkIntToScalar(10), SkIntToScalar(10));
        // translate (1 point)
        const int src1[] = { 0, 0 };
        const int dst1[] = { 5, 5 };
        doDraw(canvas, &paint, src1, dst1, 1);
        canvas->restore();

        canvas->save();
        canvas->translate(SkIntToScalar(160), SkIntToScalar(10));
        // rotate/uniform-scale (2 points)
        const int src2[] = { 32, 32, 64, 32 };
        const int dst2[] = { 32, 32, 64, 48 };
        doDraw(canvas, &paint, src2, dst2, 2);
        canvas->restore();

        canvas->save();
        canvas->translate(SkIntToScalar(10), SkIntToScalar(110));
        // rotate/skew (3 points)
        const int src3[] = { 0, 0, 64, 0, 0, 64 };
        const int dst3[] = { 0, 0, 96, 0, 24, 64 };
        doDraw(canvas, &paint, src3, dst3, 3);
        canvas->restore();

        canvas->save();
        canvas->translate(SkIntToScalar(160), SkIntToScalar(110));
        // perspective (4 points)
        const int src4[] = { 0, 0, 64, 0, 64, 64, 0, 64 };
        const int dst4[] = { 0, 0, 96, 0, 64, 96, 0, 64 };
        doDraw(canvas, &paint, src4, dst4, 4);
        canvas->restore();
    }
Example #21
0
    void drawPath(SkCanvas* canvas, const SkPath& path, SkPaint::Join j) {
        SkPaint paint;

        paint.setAntiAlias(true);
        paint.setStyle(SkPaint::kStroke_Style);
        paint.setStrokeJoin(j);
        paint.setStrokeWidth(SkIntToScalar(fStroke));

        if (fShowHairline) {
            SkPath  fill;

            paint.getFillPath(path, &fill);
            paint.setStrokeWidth(0);
            canvas->drawPath(fill, paint);
        } else {
            canvas->drawPath(path, paint);
        }

        paint.setColor(SK_ColorRED);
        paint.setStrokeWidth(0);
        canvas->drawPath(path, paint);
    }
    UnitMapperView() {
        fPts[0].set(0, 0);
        fPts[1].set(SK_Scalar1 / 3, SK_Scalar1 / 3);
        fPts[2].set(SK_Scalar1 * 2 / 3, SK_Scalar1 * 2 / 3);
        fPts[3].set(SK_Scalar1, SK_Scalar1);

        fMatrix.setScale(SK_Scalar1 * 200, -SK_Scalar1 * 200);
        fMatrix.postTranslate(SkIntToScalar(100), SkIntToScalar(300));

        SkRect r = {
            SkIntToScalar(350), SkIntToScalar(100),
            SkIntToScalar(500), SkIntToScalar(130)
        };
        SkPaint paint;
        paint.setAntiAlias(true);
        paint.setTextSize(SkIntToScalar(25));
        for (int i = 0; i < 4; i++) {
            fViews[i] = make_textview(this, r, paint);
            r.offset(0, r.height());
        }
        this->setViews();
    }
SkBitmap create_string_bitmap(int w, int h, SkColor c, int x, int y,
                              int textSize, const char* str) {
    SkBitmap bitmap;
    bitmap.allocN32Pixels(w, h);
    SkCanvas canvas(bitmap);

    SkPaint paint;
    paint.setAntiAlias(true);
    sk_tool_utils::set_portable_typeface(&paint);
    paint.setColor(c);
    paint.setTextSize(SkIntToScalar(textSize));

    canvas.clear(0x00000000);
    canvas.drawString(str, SkIntToScalar(x), SkIntToScalar(y), paint);

    // Tag data as sRGB (without doing any color space conversion). Color-space aware configs
    // will process this correctly but legacy configs will render as if this returned N32.
    SkBitmap result;
    result.setInfo(SkImageInfo::MakeS32(w, h, kPremul_SkAlphaType));
    result.setPixelRef(sk_ref_sp(bitmap.pixelRef()), 0, 0);
    return result;
}
Example #24
0
    void drawContent(SkCanvas* canvas) {
        canvas->translate(SkIntToScalar(20), SkIntToScalar(20));

        SkPaint paint;
        sk_tool_utils::set_portable_typeface(&paint);
        paint.setColor(0x80F60000);

        const Proc procs[] = {
            draw_hair, draw_thick, draw_rect, draw_oval, draw_text
        };

        const SkXfermode::Mode modes[] = {
            SkXfermode::kSrcOver_Mode, SkXfermode::kSrc_Mode, SkXfermode::kClear_Mode
        };

        const PaintProc paintProcs[] = {
            identity_paintproc, gradient_paintproc
        };

        for (int aa = 0; aa <= 1; ++aa) {
            paint.setAntiAlias(SkToBool(aa));
            canvas->save();
            for (size_t i = 0; i < SK_ARRAY_COUNT(paintProcs); ++i) {
                paintProcs[i](&paint);
                for (size_t x = 0; x < SK_ARRAY_COUNT(modes); ++x) {
                    paint.setXfermodeMode(modes[x]);
                    canvas->save();
                    for (size_t y = 0; y < SK_ARRAY_COUNT(procs); ++y) {
                        procs[y](canvas, paint);
                        canvas->translate(0, H * 5 / 4);
                    }
                    canvas->restore();
                    canvas->translate(W * 5 / 4, 0);
                }
            }
            canvas->restore();
            canvas->translate(0, (H * 5 / 4) * SK_ARRAY_COUNT(procs));
        }
    }
Example #25
0
File: gm.cpp Project: 03050903/skia
void GM::DrawGpuOnlyMessage(SkCanvas* canvas) {
    SkBitmap bmp;
    bmp.allocN32Pixels(128, 64);
    SkCanvas bmpCanvas(bmp);
    bmpCanvas.drawColor(SK_ColorWHITE);
    SkPaint paint;
    paint.setAntiAlias(true);
    paint.setTextSize(20);
    paint.setColor(SK_ColorRED);
    sk_tool_utils::set_portable_typeface(&paint);
    static const char kTxt[] = "GPU Only";
    bmpCanvas.drawText(kTxt, strlen(kTxt), 20, 40, paint);
    SkMatrix localM;
    localM.setRotate(35.f);
    localM.postTranslate(10.f, 0.f);
    paint.setShader(SkShader::MakeBitmapShader(bmp, SkShader::kMirror_TileMode,
                                               SkShader::kMirror_TileMode,
                                               &localM));
    paint.setFilterQuality(kMedium_SkFilterQuality);
    canvas->drawPaint(paint);
    return;
}
Example #26
0
/**
 * Draw a single path element of the clip stack into the accumulation bitmap
 */
void GrSWMaskHelper::drawShape(const GrShape& shape, const SkMatrix& matrix, SkRegion::Op op,
                               GrAA aa, uint8_t alpha) {
    SkPaint paint;
    paint.setPathEffect(shape.style().refPathEffect());
    shape.style().strokeRec().applyToPaint(&paint);
    paint.setAntiAlias(GrAA::kYes == aa);

    SkMatrix translatedMatrix = matrix;
    translatedMatrix.postTranslate(fTranslate.fX, fTranslate.fY);
    fDraw.fMatrix = &translatedMatrix;

    SkPath path;
    shape.asPath(&path);
    if (SkRegion::kReplace_Op == op && 0xFF == alpha) {
        SkASSERT(0xFF == paint.getAlpha());
        fDraw.drawPathCoverage(path, paint);
    } else {
        paint.setBlendMode(op_to_mode(op));
        paint.setColor(SkColorSetARGB(alpha, alpha, alpha, alpha));
        fDraw.drawPath(path, paint);
    }
};
void draw(SkCanvas* canvas) {
    auto drawImage = [=](sk_sp<SkImage> image, const char* label) -> void {
        if (nullptr == image) {
            return;
        }
        SkPaint paint;
        paint.setAntiAlias(true);
        canvas->drawImage(image, 0, 0);
        canvas->drawString(label, 30, image->height() / 4, paint);
        canvas->drawString(image->isTextureBacked() ? "is GPU texture" : "not GPU texture",
                           20, image->height() * 3 / 4, paint);
    };
    sk_sp<SkImage> bitmapImage(SkImage::MakeFromBitmap(source));
    sk_sp<SkImage> textureImage(SkImage::MakeFromTexture(canvas->getGrContext(), backEndTexture,
                                kTopLeft_GrSurfaceOrigin, kRGBA_8888_SkColorType,
                                kOpaque_SkAlphaType, nullptr));
    drawImage(image, "image");
    canvas->translate(image->width(), 0);
    drawImage(bitmapImage, "source");
    canvas->translate(-image->width(), image->height());
    drawImage(textureImage, "backEndTexture");
}
Example #28
0
    void draw1x4(SkCanvas* canvas, SkScalar x, SkScalar y) {
        SkRect rect = { -kHalfSquareSize, -kHalfSquareSize, kHalfSquareSize, kHalfSquareSize };
        rect.offset(x, y);

        SkRect outerClip = {
            -kHalfOuterClipSize-kHalfSquareSize, -kHalfOuterClipSize-kHalfSquareSize,
             kHalfOuterClipSize+kHalfSquareSize,  kHalfOuterClipSize+kHalfSquareSize
        };
        outerClip.offset(x, y);

        SkPaint paint;
        paint.setAntiAlias(true);
        paint.setLooper(create4Looper(-kOffsetToOutsideClip-kHalfSquareSize, 0));

        canvas->save();
            canvas->clipRect(outerClip, SkCanvas::kIntersect_Op);
            canvas->clipRect(rect, SkCanvas::kDifference_Op);

            rect.offset(SkIntToScalar(kOffsetToOutsideClip+kHalfSquareSize), 0);
            canvas->drawRect(rect, paint);
        canvas->restore();
    }
Example #29
0
    static sk_sp<SkImage> MakeImage(const SkVector& vec, SkColor color) {
        const SkPoint start = SkPoint::Make(vec.y() * kSegLen / 2, vec.x() * kSegLen / 2);
        const SkPoint end   = SkPoint::Make(start.x() + vec.x() * (kSegLen - 1),
                                            start.y() + vec.y() * (kSegLen - 1));

        SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(kSegLen, kSegLen));
        surface->getCanvas()->clear(SK_ColorTRANSPARENT);

        SkPaint paint;
        paint.setAntiAlias(true);
        const SkRect border = SkRect::MakeIWH(kSegLen, kSegLen).makeInset(.5f, .5f);
        paint.setColor(SK_ColorBLUE);
        paint.setStyle(SkPaint::kStroke_Style);
        surface->getCanvas()->drawRect(border, paint);

        paint.setColor(SK_ColorBLACK);
        surface->getCanvas()->drawLine(start.x(), start.y(), end.x(), end.y(), paint);
        surface->getCanvas()->drawPoint(start.x(), start.y(), color);
        surface->getCanvas()->drawPoint(end.x(), end.y(), color);

        return surface->makeImageSnapshot();
    }
Example #30
0
    virtual void onDrawContent(SkCanvas* canvas) {
        SkPaint paint;
        paint.setAntiAlias(true);
        paint.setStyle(SkPaint::kStroke_Style);
        paint.setStrokeWidth(SkIntToScalar(20));

        SkPaint hair;
        hair.setStyle(SkPaint::kStroke_Style);
        hair.setColor(SK_ColorRED);

        static const SkISize gSize[] = {
            {   100,   50 },
            {   100,    0 },
            {     0,   50 },
            {     0,    0 }
        };

        static const SkPaint::Join gJoin[] = {
            SkPaint::kMiter_Join,
            SkPaint::kRound_Join,
            SkPaint::kBevel_Join
        };

        canvas->translate(paint.getStrokeWidth(), paint.getStrokeWidth());
        for (size_t i = 0; i < SK_ARRAY_COUNT(gJoin); ++i) {
            paint.setStrokeJoin(gJoin[i]);

            canvas->save();
            for (size_t j = 0; j < SK_ARRAY_COUNT(gSize); ++j) {
                SkRect r = SkRect::MakeWH(SkIntToScalar(gSize[j].fWidth),
                                          SkIntToScalar(gSize[j].fHeight));
                canvas->drawRect(r, paint);
                canvas->drawRect(r, hair);
                canvas->translate(0, SkIntToScalar(100));
            }
            canvas->restore();
            canvas->translate(SkIntToScalar(150), 0);
        }
    }