C++ SkPaint::getStrokeJoin方法代码示例

SkPDFGraphicState::SkPDFGraphicState(const SkPaint& p)
    : fStrokeWidth(p.getStrokeWidth())
    , fStrokeMiter(p.getStrokeMiter())
    , fAlpha(p.getAlpha())
    , fStrokeCap(SkToU8(p.getStrokeCap()))
    , fStrokeJoin(SkToU8(p.getStrokeJoin()))
    , fMode(SkToU8(mode_for_pdf(p.getXfermode()))) {}

SkStroke::SkStroke(const SkPaint& p, SkScalar width) {
    fWidth      = width;
    fMiterLimit = p.getStrokeMiter();
    fCap        = (uint8_t)p.getStrokeCap();
    fJoin       = (uint8_t)p.getStrokeJoin();
    fDoFill     = SkToU8(p.getStyle() == SkPaint::kStrokeAndFill_Style);
}

// found and fixed for webkit: mishandling when we hit recursion limit on
// mostly degenerate cubic flatness test
DEF_TEST(Paint_regression_cubic, reporter) {
    SkPath path, stroke;
    SkPaint paint;

    path.moveTo(460.2881309415525f,
                303.250847066498f);
    path.cubicTo(463.36378422175284f,
                 302.1169735073363f,
                 456.32239330810046f,
                 304.720354932878f,
                 453.15255460013304f,
                 305.788586869862f);

    SkRect fillR, strokeR;
    fillR = path.getBounds();

    paint.setStyle(SkPaint::kStroke_Style);
    paint.setStrokeWidth(SkIntToScalar(2));
    paint.getFillPath(path, &stroke);
    strokeR = stroke.getBounds();

    SkRect maxR = fillR;
    SkScalar miter = SkMaxScalar(SK_Scalar1, paint.getStrokeMiter());
    SkScalar inset = paint.getStrokeJoin() == SkPaint::kMiter_Join ?
                            SkScalarMul(paint.getStrokeWidth(), miter) :
                            paint.getStrokeWidth();
    maxR.inset(-inset, -inset);

    // test that our stroke didn't explode
    REPORTER_ASSERT(reporter, maxR.contains(strokeR));
}

void SkStrokeRec::init(const SkPaint& paint, SkPaint::Style style) {
    switch (style) {
        case SkPaint::kFill_Style:
            fWidth = kStrokeRec_FillStyleWidth;
            fStrokeAndFill = false;
            break;
        case SkPaint::kStroke_Style:
            fWidth = paint.getStrokeWidth();
            fStrokeAndFill = false;
            break;
        case SkPaint::kStrokeAndFill_Style:
            if (0 == paint.getStrokeWidth()) {
                // hairline+fill == fill
                fWidth = kStrokeRec_FillStyleWidth;
                fStrokeAndFill = false;
            } else {
                fWidth = paint.getStrokeWidth();
                fStrokeAndFill = true;
            }
            break;
        default:
            SkDEBUGFAIL("unknown paint style");
            // fall back on just fill
            fWidth = kStrokeRec_FillStyleWidth;
            fStrokeAndFill = false;
            break;
    }

    // copy these from the paint, regardless of our "style"
    fMiterLimit = paint.getStrokeMiter();
    fCap        = paint.getStrokeCap();
    fJoin       = paint.getStrokeJoin();
}

void SkSVGDevice::AutoElement::addPaint(const SkPaint& paint, const Resources& resources) {
    SkPaint::Style style = paint.getStyle();
    if (style == SkPaint::kFill_Style || style == SkPaint::kStrokeAndFill_Style) {
        this->addAttribute("fill", resources.fPaintServer);

        if (SK_AlphaOPAQUE != SkColorGetA(paint.getColor())) {
            this->addAttribute("fill-opacity", svg_opacity(paint.getColor()));
        }
    } else {
        SkASSERT(style == SkPaint::kStroke_Style);
        this->addAttribute("fill", "none");
    }

    if (style == SkPaint::kStroke_Style || style == SkPaint::kStrokeAndFill_Style) {
        this->addAttribute("stroke", resources.fPaintServer);

        SkScalar strokeWidth = paint.getStrokeWidth();
        if (strokeWidth == 0) {
            // Hairline stroke
            strokeWidth = 1;
            this->addAttribute("vector-effect", "non-scaling-stroke");
        }
        this->addAttribute("stroke-width", strokeWidth);

        if (const char* cap = svg_cap(paint.getStrokeCap())) {
            this->addAttribute("stroke-linecap", cap);
        }

        if (const char* join = svg_join(paint.getStrokeJoin())) {
            this->addAttribute("stroke-linejoin", join);
        }

        if (paint.getStrokeJoin() == SkPaint::kMiter_Join) {
            this->addAttribute("stroke-miterlimit", paint.getStrokeMiter());
        }

        if (SK_AlphaOPAQUE != SkColorGetA(paint.getColor())) {
            this->addAttribute("stroke-opacity", svg_opacity(paint.getColor()));
        }
    } else {
        SkASSERT(style == SkPaint::kFill_Style);
        this->addAttribute("stroke", "none");
    }
}

static void paint_write(const SkPaint& paint, SkFlattenableWriteBuffer& buffer)
{
    buffer.writeBool(paint.isAntiAlias());
    buffer.write8(paint.getStyle());
    buffer.write8(paint.getAlpha());
    
    if (paint.getStyle() != SkPaint::kFill_Style)
    {
        buffer.writeScalar(paint.getStrokeWidth());
        buffer.writeScalar(paint.getStrokeMiter());
        buffer.write8(paint.getStrokeCap());
        buffer.write8(paint.getStrokeJoin());
    }
    
    buffer.writeFlattenable(paint.getMaskFilter());
    buffer.writeFlattenable(paint.getPathEffect());
    buffer.writeFlattenable(paint.getRasterizer());
    buffer.writeFlattenable(paint.getXfermode());
}

static void drawAndTest(skiatest::Reporter* reporter, const SkPath& path,
                        const SkPaint& paint, bool shouldDraw) {
    SkBitmap bm;
    bm.allocN32Pixels(DIMENSION, DIMENSION);
    SkASSERT(DIMENSION*4 == bm.rowBytes()); // ensure no padding on each row
    bm.eraseColor(SK_ColorTRANSPARENT);

    SkCanvas canvas(bm);
    SkPaint p(paint);
    p.setColor(SK_ColorWHITE);

    canvas.drawPath(path, p);

    size_t count = DIMENSION * DIMENSION;
    const SkPMColor* ptr = bm.getAddr32(0, 0);

    SkPMColor andValue = ~0U;
    SkPMColor orValue = 0;
    for (size_t i = 0; i < count; ++i) {
        SkPMColor c = ptr[i];
        andValue &= c;
        orValue |= c;
    }

    // success means we drew everywhere or nowhere (depending on shouldDraw)
    bool success = shouldDraw ? (~0U == andValue) : (0 == orValue);

    if (!success) {
        const char* str;
        if (shouldDraw) {
            str = "Path expected to draw everywhere, but didn't. ";
        } else {
            str = "Path expected to draw nowhere, but did. ";
        }
        ERRORF(reporter, "%s style[%d] cap[%d] join[%d] antialias[%d]"
               " filltype[%d] ptcount[%d]", str, paint.getStyle(),
               paint.getStrokeCap(), paint.getStrokeJoin(),
               paint.isAntiAlias(), path.getFillType(), path.countPoints());
// uncomment this if you want to step in to see the failure
//        canvas.drawPath(path, p);
    }
}

PassRefPtr<JSONObject> LoggingCanvas::objectForSkPaint(const SkPaint& paint)
{
    RefPtr<JSONObject> paintItem = JSONObject::create();
    paintItem->setNumber("textSize", paint.getTextSize());
    paintItem->setNumber("textScaleX", paint.getTextScaleX());
    paintItem->setNumber("textSkewX", paint.getTextSkewX());
    if (SkShader* shader = paint.getShader())
        paintItem->setObject("shader", objectForSkShader(*shader));
    paintItem->setString("color", stringForSkColor(paint.getColor()));
    paintItem->setNumber("strokeWidth", paint.getStrokeWidth());
    paintItem->setNumber("strokeMiter", paint.getStrokeMiter());
    paintItem->setString("flags", stringForSkPaintFlags(paint));
    paintItem->setString("filterLevel", filterQualityName(paint.getFilterQuality()));
    paintItem->setString("textAlign", textAlignName(paint.getTextAlign()));
    paintItem->setString("strokeCap", strokeCapName(paint.getStrokeCap()));
    paintItem->setString("strokeJoin", strokeJoinName(paint.getStrokeJoin()));
    paintItem->setString("styleName", styleName(paint.getStyle()));
    paintItem->setString("textEncoding", textEncodingName(paint.getTextEncoding()));
    paintItem->setString("hinting", hintingName(paint.getHinting()));
    return paintItem.release();
}

sk_sp<SkPDFDict> SkPDFGraphicState::GetGraphicStateForPaint(SkPDFCanon* canon,
                                                            const SkPaint& p) {
    SkASSERT(canon);
    if (SkPaint::kFill_Style == p.getStyle()) {
        SkPDFFillGraphicState fillKey = {p.getAlpha(), pdf_blend_mode(p.getBlendMode())};
        auto& fillMap = canon->fFillGSMap;
        if (sk_sp<SkPDFDict>* statePtr = fillMap.find(fillKey)) {
            return *statePtr;
        }
        auto state = sk_make_sp<SkPDFDict>();
        state->reserve(2);
        state->insertScalar("ca", fillKey.fAlpha / 255.0f);
        state->insertName("BM", as_pdf_blend_mode_name((SkBlendMode)fillKey.fBlendMode));
        fillMap.set(fillKey, state);
        return state;
    } else {
        SkPDFStrokeGraphicState strokeKey = {
            p.getStrokeWidth(), p.getStrokeMiter(),
            SkToU8(p.getStrokeCap()), SkToU8(p.getStrokeJoin()),
            p.getAlpha(), pdf_blend_mode(p.getBlendMode())};
        auto& sMap = canon->fStrokeGSMap;
        if (sk_sp<SkPDFDict>* statePtr = sMap.find(strokeKey)) {
            return *statePtr;
        }
        auto state = sk_make_sp<SkPDFDict>();
        state->reserve(8);
        state->insertScalar("CA", strokeKey.fAlpha / 255.0f);
        state->insertScalar("ca", strokeKey.fAlpha / 255.0f);
        state->insertInt("LC", to_stroke_cap(strokeKey.fStrokeCap));
        state->insertInt("LJ", to_stroke_join(strokeKey.fStrokeJoin));
        state->insertScalar("LW", strokeKey.fStrokeWidth);
        state->insertScalar("ML", strokeKey.fStrokeMiter);
        state->insertBool("SA", true);  // SA = Auto stroke adjustment.
        state->insertName("BM", as_pdf_blend_mode_name((SkBlendMode)strokeKey.fBlendMode));
        sMap.set(strokeKey, state);
        return state;
    }
}

/*
 *  Header:
 *      paint flags     : 32
 *      non_def bits    : 16
 *      xfermode enum   : 8
 *      pad zeros       : 8
 */
static void write_paint(SkWriteBuffer& writer, const SkPaint& paint, unsigned usage) {
    uint32_t packedFlags = pack_paint_flags(paint.getFlags(), paint.getHinting(),
                                            paint.getTextAlign(), paint.getFilterQuality(),
                                            paint.getStyle(), paint.getStrokeCap(),
                                            paint.getStrokeJoin(), paint.getTextEncoding());
    writer.write32(packedFlags);

    unsigned nondef = compute_nondef(paint, (PaintUsage)usage);
    const uint8_t pad = 0;
    writer.write32((nondef << 16) | ((unsigned)paint.getBlendMode() << 8) | pad);

    CHECK_WRITE_SCALAR(writer, nondef, paint, TextSize);
    CHECK_WRITE_SCALAR(writer, nondef, paint, TextScaleX);
    CHECK_WRITE_SCALAR(writer, nondef, paint, TextSkewX);
    CHECK_WRITE_SCALAR(writer, nondef, paint, StrokeWidth);
    CHECK_WRITE_SCALAR(writer, nondef, paint, StrokeMiter);

    if (nondef & kColor_NonDef) {
        writer.write32(paint.getColor());
    }
    if (nondef & kTypeface_NonDef) {
        // TODO: explore idea of writing bits indicating "use the prev (or prev N) face"
        // e.g. 1-N bits is an index into a ring buffer of typefaces
        SkTypeface* tf = paint.getTypeface();
        SkASSERT(tf);
        writer.writeTypeface(tf);
    }

    CHECK_WRITE_FLATTENABLE(writer, nondef, paint, PathEffect);
    CHECK_WRITE_FLATTENABLE(writer, nondef, paint, Shader);
    CHECK_WRITE_FLATTENABLE(writer, nondef, paint, MaskFilter);
    CHECK_WRITE_FLATTENABLE(writer, nondef, paint, ColorFilter);
    CHECK_WRITE_FLATTENABLE(writer, nondef, paint, Rasterizer);
    CHECK_WRITE_FLATTENABLE(writer, nondef, paint, ImageFilter);
    CHECK_WRITE_FLATTENABLE(writer, nondef, paint, DrawLooper);
}

void SkGLDevice::drawRect(const SkDraw& draw, const SkRect& rect,
                          const SkPaint& paint) {
    TRACE_DRAW("coreDrawRect", this, draw);
    
    if (paint.getStyle() == SkPaint::kStroke_Style) {
        return;
    }
    
    if (paint.getStrokeJoin() != SkPaint::kMiter_Join) {
        SkPath  path;
        path.addRect(rect);
        this->drawPath(draw, path, paint);
        return;
    }
    
    AutoPaintShader shader(this, paint);
    
    SkGLVertex vertex[4];
    vertex->setRectFan(rect);
    const SkGLVertex* texs = shader.useTex() ? vertex : NULL;
    
    SkGL::DrawVertices(4, GL_TRIANGLE_FAN, vertex, texs, NULL, NULL,
                       this->updateMatrixClip());
}

bool GrAtlasTextBlob::mustRegenerate(const SkPaint& paint,
                                     GrColor color, const SkMaskFilter::BlurRec& blurRec,
                                     const SkMatrix& viewMatrix, SkScalar x, SkScalar y) {
    // If we have LCD text then our canonical color will be set to transparent, in this case we have
    // to regenerate the blob on any color change
    // We use the grPaint to get any color filter effects
    if (fKey.fCanonicalColor == SK_ColorTRANSPARENT &&
        fPaintColor != color) {
        return true;
    }

    if (fInitialViewMatrix.hasPerspective() != viewMatrix.hasPerspective()) {
        return true;
    }

    if (fInitialViewMatrix.hasPerspective() && !fInitialViewMatrix.cheapEqualTo(viewMatrix)) {
        return true;
    }

    // We only cache one masked version
    if (fKey.fHasBlur &&
        (fBlurRec.fSigma != blurRec.fSigma ||
         fBlurRec.fStyle != blurRec.fStyle ||
         fBlurRec.fQuality != blurRec.fQuality)) {
        return true;
    }

    // Similarly, we only cache one version for each style
    if (fKey.fStyle != SkPaint::kFill_Style &&
        (fStrokeInfo.fFrameWidth != paint.getStrokeWidth() ||
         fStrokeInfo.fMiterLimit != paint.getStrokeMiter() ||
         fStrokeInfo.fJoin != paint.getStrokeJoin())) {
        return true;
    }

    // Mixed blobs must be regenerated.  We could probably figure out a way to do integer scrolls
    // for mixed blobs if this becomes an issue.
    if (this->hasBitmap() && this->hasDistanceField()) {
        // Identical viewmatrices and we can reuse in all cases
        if (fInitialViewMatrix.cheapEqualTo(viewMatrix) && x == fInitialX && y == fInitialY) {
            return false;
        }
        return true;
    }

    if (this->hasBitmap()) {
        if (fInitialViewMatrix.getScaleX() != viewMatrix.getScaleX() ||
            fInitialViewMatrix.getScaleY() != viewMatrix.getScaleY() ||
            fInitialViewMatrix.getSkewX() != viewMatrix.getSkewX() ||
            fInitialViewMatrix.getSkewY() != viewMatrix.getSkewY()) {
            return true;
        }

        // We can update the positions in the cachedtextblobs without regenerating the whole blob,
        // but only for integer translations.
        // This cool bit of math will determine the necessary translation to apply to the already
        // generated vertex coordinates to move them to the correct position
        SkScalar transX = viewMatrix.getTranslateX() +
                          viewMatrix.getScaleX() * (x - fInitialX) +
                          viewMatrix.getSkewX() * (y - fInitialY) -
                          fInitialViewMatrix.getTranslateX();
        SkScalar transY = viewMatrix.getTranslateY() +
                          viewMatrix.getSkewY() * (x - fInitialX) +
                          viewMatrix.getScaleY() * (y - fInitialY) -
                          fInitialViewMatrix.getTranslateY();
        if (!SkScalarIsInt(transX) || !SkScalarIsInt(transY)) {
            return true;
        }
    } else if (this->hasDistanceField()) {
        // A scale outside of [blob.fMaxMinScale, blob.fMinMaxScale] would result in a different
        // distance field being generated, so we have to regenerate in those cases
        SkScalar newMaxScale = viewMatrix.getMaxScale();
        SkScalar oldMaxScale = fInitialViewMatrix.getMaxScale();
        SkScalar scaleAdjust = newMaxScale / oldMaxScale;
        if (scaleAdjust < fMaxMinScale || scaleAdjust > fMinMaxScale) {
            return true;
        }
    }

    // It is possible that a blob has neither distanceField nor bitmaptext.  This is in the case
    // when all of the runs inside the blob are drawn as paths.  In this case, we always regenerate
    // the blob anyways at flush time, so no need to regenerate explicitly
    return false;
}

// Even with kEntirePaint_Bits, we always ensure that the master paint's
// text-encoding is respected, since that controls how we interpret the
// text/length parameters of a draw[Pos]Text call.
void SkLayerDrawLooper::ApplyInfo(SkPaint* dst, const SkPaint& src,
                                  const LayerInfo& info) {

    uint32_t mask = info.fFlagsMask;
    dst->setFlags((dst->getFlags() & ~mask) | (src.getFlags() & mask));
    dst->setColor(xferColor(src.getColor(), dst->getColor(), info.fColorMode));

    BitFlags bits = info.fPaintBits;
    SkPaint::TextEncoding encoding = dst->getTextEncoding();

    if (0 == bits) {
        return;
    }
    if (kEntirePaint_Bits == bits) {
        // we've already computed these, so save it from the assignment
        uint32_t f = dst->getFlags();
        SkColor c = dst->getColor();
        *dst = src;
        dst->setFlags(f);
        dst->setColor(c);
        dst->setTextEncoding(encoding);
        return;
    }

    if (bits & kStyle_Bit) {
        dst->setStyle(src.getStyle());
        dst->setStrokeWidth(src.getStrokeWidth());
        dst->setStrokeMiter(src.getStrokeMiter());
        dst->setStrokeCap(src.getStrokeCap());
        dst->setStrokeJoin(src.getStrokeJoin());
    }

    if (bits & kTextSkewX_Bit) {
        dst->setTextSkewX(src.getTextSkewX());
    }

    if (bits & kPathEffect_Bit) {
        dst->setPathEffect(src.getPathEffect());
    }
    if (bits & kMaskFilter_Bit) {
        dst->setMaskFilter(src.getMaskFilter());
    }
    if (bits & kShader_Bit) {
        dst->setShader(src.getShader());
    }
    if (bits & kColorFilter_Bit) {
        dst->setColorFilter(src.getColorFilter());
    }
    if (bits & kXfermode_Bit) {
        dst->setXfermode(src.getXfermode());
    }

    // we don't override these
#if 0
    dst->setTypeface(src.getTypeface());
    dst->setTextSize(src.getTextSize());
    dst->setTextScaleX(src.getTextScaleX());
    dst->setRasterizer(src.getRasterizer());
    dst->setLooper(src.getLooper());
    dst->setTextEncoding(src.getTextEncoding());
    dst->setHinting(src.getHinting());
#endif
}

// Even with kEntirePaint_Bits, we always ensure that the master paint's
// text-encoding is respected, since that controls how we interpret the
// text/length parameters of a draw[Pos]Text call.
void SkLayerDrawLooper::LayerDrawLooperContext::ApplyInfo(
        SkPaint* dst, const SkPaint& src, const LayerInfo& info) {
    SkColor4f srcColor = src.getColor4f();
#ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
    // The framework may respect the alpha value on the original paint.
    // Match this legacy behavior.
    if (src.getAlpha() == 255) {
        srcColor.fA = dst->getColor4f().fA;
    }
#endif
    dst->setColor4f(xferColor(srcColor, dst->getColor4f(), (SkBlendMode)info.fColorMode),
                    sk_srgb_singleton());

    BitFlags bits = info.fPaintBits;
    SkPaint::TextEncoding encoding = dst->getTextEncoding();

    if (0 == bits) {
        return;
    }
    if (kEntirePaint_Bits == bits) {
        // we've already computed these, so save it from the assignment
        uint32_t f = dst->getFlags();
        SkColor4f c = dst->getColor4f();
        *dst = src;
        dst->setFlags(f);
        dst->setColor4f(c, sk_srgb_singleton());
        dst->setTextEncoding(encoding);
        return;
    }

    if (bits & kStyle_Bit) {
        dst->setStyle(src.getStyle());
        dst->setStrokeWidth(src.getStrokeWidth());
        dst->setStrokeMiter(src.getStrokeMiter());
        dst->setStrokeCap(src.getStrokeCap());
        dst->setStrokeJoin(src.getStrokeJoin());
    }

    if (bits & kTextSkewX_Bit) {
        dst->setTextSkewX(src.getTextSkewX());
    }

    if (bits & kPathEffect_Bit) {
        dst->setPathEffect(src.refPathEffect());
    }
    if (bits & kMaskFilter_Bit) {
        dst->setMaskFilter(src.refMaskFilter());
    }
    if (bits & kShader_Bit) {
        dst->setShader(src.refShader());
    }
    if (bits & kColorFilter_Bit) {
        dst->setColorFilter(src.refColorFilter());
    }
    if (bits & kXfermode_Bit) {
        dst->setBlendMode(src.getBlendMode());
    }

    // we don't override these
#if 0
    dst->setTypeface(src.getTypeface());
    dst->setTextSize(src.getTextSize());
    dst->setTextScaleX(src.getTextScaleX());
    dst->setRasterizer(src.getRasterizer());
    dst->setLooper(src.getLooper());
    dst->setTextEncoding(src.getTextEncoding());
    dst->setHinting(src.getHinting());
#endif
}

void SkFlatPaint::dump() const {
    SkPaint defaultPaint;
    SkFlattenableReadBuffer buffer(fPaintData);
    SkTypeface* typeface = (SkTypeface*) buffer.readPtr();
    char pBuffer[DUMP_BUFFER_SIZE];
    char* bufferPtr = pBuffer;
    bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
        "paint: ");
    if (typeface != defaultPaint.getTypeface())
        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
            "typeface:%p ", typeface);
    SkScalar textSize = buffer.readScalar();
    if (textSize != defaultPaint.getTextSize())
        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
            "textSize:%g ", SkScalarToFloat(textSize));
    SkScalar textScaleX = buffer.readScalar();
    if (textScaleX != defaultPaint.getTextScaleX())
        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
            "textScaleX:%g ", SkScalarToFloat(textScaleX));
    SkScalar textSkewX = buffer.readScalar();
    if (textSkewX != defaultPaint.getTextSkewX())
        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
            "textSkewX:%g ", SkScalarToFloat(textSkewX));
    const SkPathEffect* pathEffect = (const SkPathEffect*) buffer.readFlattenable();
    if (pathEffect != defaultPaint.getPathEffect())
        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
            "pathEffect:%p ", pathEffect);
    SkDELETE(pathEffect);
    const SkShader* shader = (const SkShader*) buffer.readFlattenable();
    if (shader != defaultPaint.getShader())
        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
            "shader:%p ", shader);
    SkDELETE(shader);
    const SkXfermode* xfermode = (const SkXfermode*) buffer.readFlattenable();
    if (xfermode != defaultPaint.getXfermode())
        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
            "xfermode:%p ", xfermode);
    SkDELETE(xfermode);
    const SkMaskFilter* maskFilter = (const SkMaskFilter*) buffer.readFlattenable();
    if (maskFilter != defaultPaint.getMaskFilter())
        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
            "maskFilter:%p ", maskFilter);
    SkDELETE(maskFilter);
    const SkColorFilter* colorFilter = (const SkColorFilter*) buffer.readFlattenable();
    if (colorFilter != defaultPaint.getColorFilter())
        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
            "colorFilter:%p ", colorFilter);
    SkDELETE(colorFilter);
    const SkRasterizer* rasterizer = (const SkRasterizer*) buffer.readFlattenable();
    if (rasterizer != defaultPaint.getRasterizer())
        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
            "rasterizer:%p ", rasterizer);
    SkDELETE(rasterizer);
    const SkDrawLooper* drawLooper = (const SkDrawLooper*) buffer.readFlattenable();
    if (drawLooper != defaultPaint.getLooper())
        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
            "drawLooper:%p ", drawLooper);
    SkDELETE(drawLooper);
    unsigned color = buffer.readU32();
    if (color != defaultPaint.getColor())
        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
            "color:0x%x ", color);
    SkScalar strokeWidth = buffer.readScalar();
    if (strokeWidth != defaultPaint.getStrokeWidth())
        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
            "strokeWidth:%g ", SkScalarToFloat(strokeWidth));
    SkScalar strokeMiter = buffer.readScalar();
    if (strokeMiter != defaultPaint.getStrokeMiter())
        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
            "strokeMiter:%g ", SkScalarToFloat(strokeMiter));
    unsigned flags = buffer.readU16();
    if (flags != defaultPaint.getFlags())
        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
            "flags:0x%x ", flags);
    int align = buffer.readU8();
    if (align != defaultPaint.getTextAlign())
        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
            "align:0x%x ", align);
    int strokeCap = buffer.readU8();
    if (strokeCap != defaultPaint.getStrokeCap())
        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
            "strokeCap:0x%x ", strokeCap);
    int strokeJoin = buffer.readU8();
    if (strokeJoin != defaultPaint.getStrokeJoin())
        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
            "align:0x%x ", strokeJoin);
    int style = buffer.readU8();
    if (style != defaultPaint.getStyle())
        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
            "style:0x%x ", style);
    int textEncoding = buffer.readU8();
    if (textEncoding != defaultPaint.getTextEncoding())
        bufferPtr += snprintf(bufferPtr, DUMP_BUFFER_SIZE - (bufferPtr - pBuffer), 
            "textEncoding:0x%x ", textEncoding);
    SkDebugf("%s\n", pBuffer);
}