C++ sk_sp::height方法代码示例

sk_sp<SkSpecialImage> SkSpecialImage::MakeFromImage(const SkIRect& subset,
                                                    sk_sp<SkImage> image,
                                                    const SkSurfaceProps* props) {
    SkASSERT(rect_fits(subset, image->width(), image->height()));

    return sk_make_sp<SkSpecialImage_Image>(subset, image, props);
}

static void dopatch(SkCanvas* canvas, const SkColor colors[], sk_sp<SkImage> img = nullptr) {
    SkPaint paint;

    const SkBlendMode modes[] = {
        SkBlendMode::kSrc,
        SkBlendMode::kDst,
        SkBlendMode::kModulate,
    };

    SkPoint texStorage[4];
    const SkPoint* tex = gTexCoords;

    sk_sp<SkShader> shader;
    if (img) {
        SkScalar w = img->width();
        SkScalar h = img->height();
        shader = img->makeShader();
        texStorage[0].set(0, 0);
        texStorage[1].set(w, 0);
        texStorage[2].set(w, h);
        texStorage[3].set(0, h);
        tex = texStorage;
    } else {
        shader = make_shader();
    }

    canvas->save();
    for (int y = 0; y < 3; y++) {
        for (int x = 0; x < 4; x++) {
            canvas->save();
            canvas->translate(x * 350.0f, y * 350.0f);
            switch (x) {
                case 0:
                    canvas->drawPatch(gCubics, nullptr, nullptr, modes[y], paint);
                    break;
                case 1:
                    canvas->drawPatch(gCubics, colors, nullptr, modes[y], paint);
                    break;
                case 2:
                    paint.setShader(shader);
                    canvas->drawPatch(gCubics, nullptr, tex, modes[y], paint);
                    paint.setShader(nullptr);
                    break;
                case 3:
                    paint.setShader(shader);
                    canvas->drawPatch(gCubics, colors, tex, modes[y], paint);
                    paint.setShader(nullptr);
                    break;
                default:
                    break;
            }

            draw_control_points(canvas, gCubics);
            canvas->restore();
        }
    }
    canvas->restore();
}

sk_sp<SkShader> SkImageShader::Make(sk_sp<SkImage> image,
                                    TileMode tx, TileMode ty,
                                    const SkMatrix* localMatrix,
                                    bool clampAsIfUnpremul) {
    if (!image || bitmap_is_too_big(image->width(), image->height())) {
        return sk_make_sp<SkEmptyShader>();
    }
    return sk_sp<SkShader>{ new SkImageShader(image, tx,ty, localMatrix, clampAsIfUnpremul) };
}

sk_sp<SkSpecialImage> SkSpecialImage::MakeFromGpu(const SkIRect& subset,
        uint32_t uniqueID,
        sk_sp<GrTexture> tex,
        sk_sp<SkColorSpace> colorSpace,
        const SkSurfaceProps* props,
        SkAlphaType at) {
    SkASSERT(rect_fits(subset, tex->width(), tex->height()));
    return sk_make_sp<SkSpecialImage_Gpu>(subset, uniqueID, std::move(tex), at,
                                          std::move(colorSpace), props);
}

sk_sp<GrTextureProxy> GrTextureProducer::CopyOnGpu(GrContext* context,
                                                   sk_sp<GrTextureProxy> inputProxy,
                                                   const CopyParams& copyParams,
                                                   bool dstWillRequireMipMaps) {
    SkASSERT(context);

    const SkRect dstRect = SkRect::MakeIWH(copyParams.fWidth, copyParams.fHeight);
    GrMipMapped mipMapped = dstWillRequireMipMaps ? GrMipMapped::kYes : GrMipMapped::kNo;

    SkRect localRect = SkRect::MakeWH(inputProxy->width(), inputProxy->height());

    bool needsDomain = false;
    bool resizing = false;
    if (copyParams.fFilter != GrSamplerState::Filter::kNearest) {
        bool resizing = localRect.width()  != dstRect.width() ||
                        localRect.height() != dstRect.height();
        needsDomain = resizing && !GrProxyProvider::IsFunctionallyExact(inputProxy.get());
    }

    if (copyParams.fFilter == GrSamplerState::Filter::kNearest && !needsDomain && !resizing &&
        dstWillRequireMipMaps) {
        sk_sp<GrTextureProxy> proxy = GrCopyBaseMipMapToTextureProxy(context, inputProxy.get());
        if (proxy) {
            return proxy;
        }
    }

    sk_sp<GrRenderTargetContext> copyRTC =
        context->contextPriv().makeDeferredRenderTargetContextWithFallback(
            SkBackingFit::kExact, dstRect.width(), dstRect.height(), inputProxy->config(),
            nullptr, 1, mipMapped, inputProxy->origin());
    if (!copyRTC) {
        return nullptr;
    }

    GrPaint paint;

    if (needsDomain) {
        const SkRect domain = localRect.makeInset(0.5f, 0.5f);
        // This would cause us to read values from outside the subset. Surely, the caller knows
        // better!
        SkASSERT(copyParams.fFilter != GrSamplerState::Filter::kMipMap);
        paint.addColorFragmentProcessor(
            GrTextureDomainEffect::Make(std::move(inputProxy), SkMatrix::I(), domain,
                                        GrTextureDomain::kClamp_Mode, copyParams.fFilter));
    } else {
        GrSamplerState samplerState(GrSamplerState::WrapMode::kClamp, copyParams.fFilter);
        paint.addColorTextureProcessor(std::move(inputProxy), SkMatrix::I(), samplerState);
    }
    paint.setPorterDuffXPFactory(SkBlendMode::kSrc);

    copyRTC->fillRectToRect(GrNoClip(), std::move(paint), GrAA::kNo, SkMatrix::I(), dstRect,
                            localRect);
    return copyRTC->asTextureProxyRef();
}

sk_sp<SkSpecialImage> SkSpecialImage::MakeDeferredFromGpu(GrContext* context,
                                                          const SkIRect& subset,
                                                          uint32_t uniqueID,
                                                          sk_sp<GrTextureProxy> proxy,
                                                          sk_sp<SkColorSpace> colorSpace,
                                                          const SkSurfaceProps* props,
                                                          SkAlphaType at) {
    SkASSERT(rect_fits(subset, proxy->width(), proxy->height()));
    return sk_make_sp<SkSpecialImage_Gpu>(context, subset, uniqueID, std::move(proxy), at,
                                          std::move(colorSpace), props);
}

GrTextureAdjuster::GrTextureAdjuster(GrContext* context, sk_sp<GrTextureProxy> original,
                                     SkAlphaType alphaType,
                                     uint32_t uniqueID,
                                     SkColorSpace* cs)
    : INHERITED(original->width(), original->height(),
                GrPixelConfigIsAlphaOnly(original->config()))
    , fContext(context)
    , fOriginal(std::move(original))
    , fAlphaType(alphaType)
    , fColorSpace(cs)
    , fUniqueID(uniqueID) {}

SkImage_Gpu::SkImage_Gpu(GrContext* context, uint32_t uniqueID, SkAlphaType at,
                         sk_sp<GrTextureProxy> proxy,
                         sk_sp<SkColorSpace> colorSpace, SkBudgeted budgeted)
    : INHERITED(proxy->width(), proxy->height(), uniqueID)
    , fContext(context)
    , fProxy(std::move(proxy))
    , fAlphaType(at)
    , fBudgeted(budgeted)
    , fColorSpace(std::move(colorSpace))
    , fAddedRasterVersionToCache(false) {
}

sk_sp<SkSpecialImage> SkSpecialImage::MakeDeferredFromGpu(GrContext* context,
                                                          const SkIRect& subset,
                                                          uint32_t uniqueID,
                                                          sk_sp<GrTextureProxy> proxy,
                                                          sk_sp<SkColorSpace> colorSpace,
                                                          const SkSurfaceProps* props,
                                                          SkAlphaType at) {
    if (!context || context->contextPriv().abandoned() || !proxy) {
        return nullptr;
    }
    SkASSERT_RELEASE(rect_fits(subset, proxy->width(), proxy->height()));
    return sk_make_sp<SkSpecialImage_Gpu>(context, subset, uniqueID, std::move(proxy), at,
                                          std::move(colorSpace), props);
}

    SkSpecialSurface_Raster(const SkImageInfo& info,
                            sk_sp<SkPixelRef> pr,
                            const SkIRect& subset,
                            const SkSurfaceProps* props)
        : INHERITED(subset, props) {
        SkASSERT(info.width() == pr->width() && info.height() == pr->height());
        fBitmap.setInfo(info, info.minRowBytes());
        fBitmap.setPixelRef(std::move(pr), 0, 0);

        fCanvas.reset(new SkCanvas(fBitmap, this->props()));
        fCanvas->clipRect(SkRect::Make(subset));
#ifdef SK_IS_BOT
        fCanvas->clear(SK_ColorRED);  // catch any imageFilter sloppiness
#endif
    }

sk_sp<SkSurface> SkSurface_Gpu::MakeWrappedRenderTarget(GrContext* context,
                                                        sk_sp<GrRenderTargetContext> rtc) {
    if (!context) {
        return nullptr;
    }

    sk_sp<SkGpuDevice> device(SkGpuDevice::Make(context, std::move(rtc),
                                                rtc->width(), rtc->height(),
                                                SkGpuDevice::kUninit_InitContents));
    if (!device) {
        return nullptr;
    }

    return sk_make_sp<SkSurface_Gpu>(std::move(device));
}

sk_sp<SkSpecialImage> SkSpecialImage::MakeFromImage(const SkIRect& subset,
        sk_sp<SkImage> image,
        const SkSurfaceProps* props) {
    SkASSERT(rect_fits(subset, image->width(), image->height()));

#if SK_SUPPORT_GPU
    if (GrTexture* texture = as_IB(image)->peekTexture()) {
        return MakeFromGpu(subset, image->uniqueID(), sk_ref_sp(texture),
                           sk_ref_sp(as_IB(image)->onImageInfo().colorSpace()), props);
    } else
#endif
    {
        SkBitmap bm;
        if (as_IB(image)->getROPixels(&bm)) {
            return MakeFromRaster(subset, bm, props);
        }
    }
    return nullptr;
}

// skbug.com/5932
static void test_basic_draw_as_src(skiatest::Reporter* reporter, GrContext* context,
                                   sk_sp<GrTextureProxy> rectProxy, uint32_t expectedPixelValues[]) {
    sk_sp<GrRenderTargetContext> rtContext(context->contextPriv().makeDeferredRenderTargetContext(
                                                     SkBackingFit::kExact, rectProxy->width(),
                                                     rectProxy->height(), rectProxy->config(),
                                                     nullptr));
    for (auto filter : {GrSamplerState::Filter::kNearest,
                        GrSamplerState::Filter::kBilerp,
                        GrSamplerState::Filter::kMipMap}) {
        rtContext->clear(nullptr, 0xDDCCBBAA, GrRenderTargetContext::CanClearFullscreen::kYes);
        auto fp = GrSimpleTextureEffect::Make(rectProxy, SkMatrix::I(), filter);
        GrPaint paint;
        paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
        paint.addColorFragmentProcessor(std::move(fp));
        rtContext->drawPaint(GrNoClip(), std::move(paint), SkMatrix::I());
        test_read_pixels(reporter, rtContext.get(), expectedPixelValues,
                         "RectangleTexture-basic-draw");
    }
}

bool
SourceSurfaceSkia::InitFromImage(sk_sp<SkImage> aImage,
                                 SurfaceFormat aFormat,
                                 DrawTargetSkia* aOwner)
{
  if (!aImage) {
    return false;
  }

  mSize = IntSize(aImage->width(), aImage->height());

  // For the raster image case, we want to use the format and stride
  // information that the underlying raster image is using, which is
  // reliable.
  // For the GPU case (for which peekPixels is false), we can't easily
  // figure this information out. It is better to report the originally
  // intended format and stride that we will convert to if this GPU
  // image is ever read back into a raster image.
  SkPixmap pixmap;
  if (aImage->peekPixels(&pixmap)) {
    mFormat =
      aFormat != SurfaceFormat::UNKNOWN ?
        aFormat :
        SkiaColorTypeToGfxFormat(pixmap.colorType(), pixmap.alphaType());
    mStride = pixmap.rowBytes();
  } else if (aFormat != SurfaceFormat::UNKNOWN) {
    mFormat = aFormat;
    SkImageInfo info = MakeSkiaImageInfo(mSize, mFormat);
    mStride = SkAlign4(info.minRowBytes());
  } else {
    return false;
  }

  mImage = aImage;

  if (aOwner) {
    mDrawTarget = aOwner;
  }

  return true;
}

sk_sp<SkSpecialImage> SkSpecialImage::MakeFromImage(const SkIRect& subset,
                                                    sk_sp<SkImage> image,
                                                    SkColorSpace* dstColorSpace,
                                                    const SkSurfaceProps* props) {
    SkASSERT(rect_fits(subset, image->width(), image->height()));

#if SK_SUPPORT_GPU
    if (sk_sp<GrTextureProxy> proxy = as_IB(image)->asTextureProxyRef()) {
        GrContext* context = ((SkImage_Gpu*) as_IB(image))->context();

        return MakeDeferredFromGpu(context, subset, image->uniqueID(), std::move(proxy),
                                   as_IB(image)->onImageInfo().refColorSpace(), props);
    } else
#endif
    {
        SkBitmap bm;
        if (as_IB(image)->getROPixels(&bm, dstColorSpace)) {
            return MakeFromRaster(subset, bm, props);
        }
    }
    return nullptr;
}