Exemplo n.º 1
0
bool SkMaskFilter::filterPath(const SkPath& devPath, const SkMatrix& matrix,
                              const SkRegion& clip, SkBounder* bounder,
                              SkBlitter* blitter)
{
    SkMask  srcM, dstM;

    if (!SkDraw::DrawToMask(devPath, &clip.getBounds(), this, &matrix, &srcM,
                            SkMask::kComputeBoundsAndRenderImage_CreateMode))
    {
        return false;
    }

    SkAutoMaskImage autoSrc(&srcM, false);

    if (!this->filterMask(&dstM, srcM, matrix, NULL))
        return false;

    SkAutoMaskImage         autoDst(&dstM, false);
    SkRegion::Cliperator    clipper(clip, dstM.fBounds);

    if (!clipper.done() && (bounder == NULL || bounder->doIRect(dstM.fBounds)))
    {
        const SkIRect& cr = clipper.rect();
        do {
            blitter->blitMask(dstM, cr);
            clipper.next();
        } while (!clipper.done());
    }

    return true;
}
Exemplo n.º 2
0
bool SkMaskFilterBase::filterPath(const SkPath& devPath, const SkMatrix& matrix,
                                  const SkRasterClip& clip, SkBlitter* blitter,
                                  SkStrokeRec::InitStyle style) const {
    SkRect rects[2];
    int rectCount = 0;
    if (SkStrokeRec::kFill_InitStyle == style) {
        rectCount = countNestedRects(devPath, rects);
    }
    if (rectCount > 0) {
        NinePatch patch;

        switch (this->filterRectsToNine(rects, rectCount, matrix, clip.getBounds(), &patch)) {
            case kFalse_FilterReturn:
                SkASSERT(nullptr == patch.fMask.fImage);
                return false;

            case kTrue_FilterReturn:
                draw_nine(patch.fMask, patch.fOuterRect, patch.fCenter, 1 == rectCount, clip,
                          blitter);
                return true;

            case kUnimplemented_FilterReturn:
                SkASSERT(nullptr == patch.fMask.fImage);
                // fall through
                break;
        }
    }

    SkMask  srcM, dstM;

    if (!SkDraw::DrawToMask(devPath, &clip.getBounds(), this, &matrix, &srcM,
                            SkMask::kComputeBoundsAndRenderImage_CreateMode,
                            style)) {
        return false;
    }
    SkAutoMaskFreeImage autoSrc(srcM.fImage);

    if (!this->filterMask(&dstM, srcM, matrix, nullptr)) {
        return false;
    }
    SkAutoMaskFreeImage autoDst(dstM.fImage);

    // if we get here, we need to (possibly) resolve the clip and blitter
    SkAAClipBlitterWrapper wrapper(clip, blitter);
    blitter = wrapper.getBlitter();

    SkRegion::Cliperator clipper(wrapper.getRgn(), dstM.fBounds);

    if (!clipper.done()) {
        const SkIRect& cr = clipper.rect();
        do {
            blitter->blitMask(dstM, cr);
            clipper.next();
        } while (!clipper.done());
    }

    return true;
}
Exemplo n.º 3
0
static bool draw_with_mask_filter(GrDrawContext* drawContext,
                                  GrTextureProvider* textureProvider,
                                  GrRenderTarget* rt,
                                  const GrClip& clipData,
                                  const SkMatrix& viewMatrix,
                                  const SkPath& devPath,
                                  SkMaskFilter* filter,
                                  const SkIRect& clipBounds,
                                  GrPaint* grp,
                                  SkPaint::Style style) {
    SkMask  srcM, dstM;

    if (!SkDraw::DrawToMask(devPath, &clipBounds, filter, &viewMatrix, &srcM,
                            SkMask::kComputeBoundsAndRenderImage_CreateMode, style)) {
        return false;
    }
    SkAutoMaskFreeImage autoSrc(srcM.fImage);

    if (!filter->filterMask(&dstM, srcM, viewMatrix, nullptr)) {
        return false;
    }
    // this will free-up dstM when we're done (allocated in filterMask())
    SkAutoMaskFreeImage autoDst(dstM.fImage);

    if (clip_bounds_quick_reject(clipBounds, dstM.fBounds)) {
        return false;
    }

    // we now have a device-aligned 8bit mask in dstM, ready to be drawn using
    // the current clip (and identity matrix) and GrPaint settings
    GrSurfaceDesc desc;
    desc.fWidth = dstM.fBounds.width();
    desc.fHeight = dstM.fBounds.height();
    desc.fConfig = kAlpha_8_GrPixelConfig;

    SkAutoTUnref<GrTexture> texture(textureProvider->createApproxTexture(desc));
    if (!texture) {
        return false;
    }
    texture->writePixels(0, 0, desc.fWidth, desc.fHeight, desc.fConfig,
                               dstM.fImage, dstM.fRowBytes);

    SkRect maskRect = SkRect::Make(dstM.fBounds);

    return draw_mask(drawContext, rt, clipData, viewMatrix, maskRect, grp, texture);
}
Exemplo n.º 4
0
    static void mapPoints(JNIEnv* env, jobject clazz, jlong matrixHandle,
                              jfloatArray dst, jint dstIndex,
                              jfloatArray src, jint srcIndex,
                              jint ptCount, jboolean isPts) {
        SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
        SkASSERT(ptCount >= 0);
        AutoJavaFloatArray autoSrc(env, src, srcIndex + (ptCount << 1), kRO_JNIAccess);
        AutoJavaFloatArray autoDst(env, dst, dstIndex + (ptCount << 1), kRW_JNIAccess);
        float* srcArray = autoSrc.ptr() + srcIndex;
        float* dstArray = autoDst.ptr() + dstIndex;
#ifdef SK_SCALAR_IS_FLOAT
        if (isPts)
            matrix->mapPoints((SkPoint*)dstArray, (const SkPoint*)srcArray,
                              ptCount);
        else
            matrix->mapVectors((SkVector*)dstArray, (const SkVector*)srcArray,
                               ptCount);
#else
        SkASSERT(false);
#endif
    }
Exemplo n.º 5
0
    static jboolean setPolyToPoly(JNIEnv* env, jobject clazz, jlong matrixHandle,
                                  jfloatArray jsrc, jint srcIndex,
                                  jfloatArray jdst, jint dstIndex, jint ptCount) {
        SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
        SkASSERT(srcIndex >= 0);
        SkASSERT(dstIndex >= 0);
        SkASSERT((unsigned)ptCount <= 4);

        AutoJavaFloatArray autoSrc(env, jsrc, srcIndex + (ptCount << 1), kRO_JNIAccess);
        AutoJavaFloatArray autoDst(env, jdst, dstIndex + (ptCount << 1), kRW_JNIAccess);
        float* src = autoSrc.ptr() + srcIndex;
        float* dst = autoDst.ptr() + dstIndex;
        bool result;

#ifdef SK_SCALAR_IS_FLOAT
        result = matrix->setPolyToPoly((const SkPoint*)src, (const SkPoint*)dst,
                                     ptCount);
#else
        SkASSERT(false);
#endif
        return result ? JNI_TRUE : JNI_FALSE;
    }