C++ GrBatch::unref方法代码示例

void GrDrawTarget::discard(GrRenderTarget* renderTarget) {
    if (this->caps()->discardRenderTargetSupport()) {
        GrBatch* batch = new GrDiscardBatch(renderTarget);
        this->recordBatch(batch);
        batch->unref();
    }
}

void GrDrawTarget::stencilPath(const GrPipelineBuilder& pipelineBuilder,
                               const SkMatrix& viewMatrix,
                               const GrPath* path,
                               GrPathRendering::FillType fill) {
    // TODO: extract portions of checkDraw that are relevant to path stenciling.
    SkASSERT(path);
    SkASSERT(this->caps()->shaderCaps()->pathRenderingSupport());

    // Setup clip
    GrPipelineBuilder::AutoRestoreStencil ars;
    GrAppliedClip clip;
    if (!fClipMaskManager->setupClipping(pipelineBuilder, &ars, nullptr, &clip)) {
        return;
    }

    GrPipelineBuilder::AutoRestoreFragmentProcessorState arfps;
    if (clip.clipCoverageFragmentProcessor()) {
        arfps.set(&pipelineBuilder);
        arfps.addCoverageFragmentProcessor(clip.clipCoverageFragmentProcessor());
    }

    // set stencil settings for path
    GrStencilSettings stencilSettings;
    GrRenderTarget* rt = pipelineBuilder.getRenderTarget();
    GrStencilAttachment* sb = fResourceProvider->attachStencilAttachment(rt);
    this->getPathStencilSettingsForFilltype(fill, sb, &stencilSettings);

    GrBatch* batch = GrStencilPathBatch::Create(viewMatrix,
                                                pipelineBuilder.isHWAntialias(),
                                                stencilSettings, clip.scissorState(),
                                                pipelineBuilder.getRenderTarget(),
                                                path);
    this->recordBatch(batch);
    batch->unref();
}

void GrDrawTarget::copySurface(GrSurface* dst,
                               GrSurface* src,
                               const SkIRect& srcRect,
                               const SkIPoint& dstPoint) {
    GrBatch* batch = GrCopySurfaceBatch::Create(dst, src, srcRect, dstPoint);
    if (batch) {
        this->recordBatch(batch);
        batch->unref();
    }
}

void GrDrawTarget::copySurface(GrSurface* dst,
                               GrSurface* src,
                               const SkIRect& srcRect,
                               const SkIPoint& dstPoint) {
    GrBatch* batch = GrCopySurfaceBatch::Create(dst, src, srcRect, dstPoint);
    if (batch) {
#ifdef ENABLE_MDB
        this->addDependency(src);
#endif

        this->recordBatch(batch);
        batch->unref();
    }
}

bool GrDrawTarget::copySurface(GrSurface* dst,
                               GrSurface* src,
                               const SkIRect& srcRect,
                               const SkIPoint& dstPoint) {
    GrBatch* batch = GrCopySurfaceBatch::Create(dst, src, srcRect, dstPoint);
    if (!batch) {
        return false;
    }
#ifdef ENABLE_MDB
    this->addDependency(src);
#endif

    this->recordBatch(batch, batch->bounds());
    batch->unref();
    return true;
}

void GrDrawTarget::clear(const SkIRect* rect,
                         GrColor color,
                         bool canIgnoreRect,
                         GrRenderTarget* renderTarget) {
    SkIRect rtRect = SkIRect::MakeWH(renderTarget->width(), renderTarget->height());
    SkIRect clippedRect;
    if (!rect ||
        (canIgnoreRect && this->caps()->fullClearIsFree()) ||
        rect->contains(rtRect)) {
        rect = &rtRect;
    } else {
        clippedRect = *rect;
        if (!clippedRect.intersect(rtRect)) {
            return;
        }
        rect = &clippedRect;
    }

    if (this->caps()->useDrawInsteadOfClear()) {
        // This works around a driver bug with clear by drawing a rect instead.
        // The driver will ignore a clear if it is the only thing rendered to a
        // target before the target is read.
        if (rect == &rtRect) {
            this->discard(renderTarget);
        }

        GrPipelineBuilder pipelineBuilder;
        pipelineBuilder.setXPFactory(
            GrPorterDuffXPFactory::Create(SkXfermode::kSrc_Mode))->unref();
        pipelineBuilder.setRenderTarget(renderTarget);

        SkRect scalarRect = SkRect::Make(*rect);
        SkAutoTUnref<GrDrawBatch> batch(
                GrRectBatchFactory::CreateNonAAFill(color, SkMatrix::I(), scalarRect,
                                                    nullptr, nullptr));
        this->drawBatch(pipelineBuilder, batch);
    } else {
        GrBatch* batch = new GrClearBatch(*rect, color, renderTarget);
        this->recordBatch(batch);
        batch->unref();
    }
}

void GrDrawTarget::stencilPath(const GrPipelineBuilder& pipelineBuilder,
                               GrDrawContext* drawContext,
                               const GrClip& clip,
                               const SkMatrix& viewMatrix,
                               const GrPath* path,
                               GrPathRendering::FillType fill) {
    // TODO: extract portions of checkDraw that are relevant to path stenciling.
    SkASSERT(path);
    SkASSERT(this->caps()->shaderCaps()->pathRenderingSupport());

    // Setup clip
    GrAppliedClip appliedClip;
    if (!clip.apply(fContext, pipelineBuilder, drawContext, nullptr, &appliedClip)) {
        return;
    }
    // TODO: respect fClipBatchToBounds if we ever start computing bounds here.

    // Coverage AA does not make sense when rendering to the stencil buffer. The caller should never
    // attempt this in a situation that would require coverage AA.
    SkASSERT(!appliedClip.getClipCoverageFragmentProcessor());

    GrStencilAttachment* stencilAttachment = fResourceProvider->attachStencilAttachment(
                                                drawContext->accessRenderTarget());
    if (!stencilAttachment) {
        SkDebugf("ERROR creating stencil attachment. Draw skipped.\n");
        return;
    }

    GrBatch* batch = GrStencilPathBatch::Create(viewMatrix,
                                                pipelineBuilder.isHWAntialias(),
                                                fill,
                                                appliedClip.hasStencilClip(),
                                                stencilAttachment->bits(),
                                                appliedClip.scissorState(),
                                                drawContext->accessRenderTarget(),
                                                path);
    this->recordBatch(batch);
    batch->unref();
}

void GrDrawTarget::clearStencilClip(const SkIRect& rect, bool insideClip, GrRenderTarget* rt) {
    GrBatch* batch = new GrClearStencilClipBatch(rect, insideClip, rt);
    this->recordBatch(batch);
    batch->unref();
}