| /* |
| * Copyright (C) 2016 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "NativeImage.h" |
| |
| #include "Color.h" |
| #include "FloatRect.h" |
| #include "GeometryUtilities.h" |
| #include "GraphicsContext.h" |
| #include "IntSize.h" |
| #include "NotImplemented.h" |
| #include <d2d1.h> |
| |
| namespace WebCore { |
| |
| IntSize nativeImageSize(const NativeImagePtr& image) |
| { |
| return image ? IntSize(image->GetSize()) : IntSize(); |
| } |
| |
| bool nativeImageHasAlpha(const NativeImagePtr& image) |
| { |
| if (!image) |
| return false; |
| |
| auto alphaMode = image->GetPixelFormat().alphaMode; |
| return (alphaMode >= D2D1_ALPHA_MODE_PREMULTIPLIED) && (alphaMode <= D2D1_ALPHA_MODE_STRAIGHT); |
| } |
| |
| Color nativeImageSinglePixelSolidColor(const NativeImagePtr& image) |
| { |
| if (!image || nativeImageSize(image) != IntSize(1, 1)) |
| return Color(); |
| |
| notImplemented(); |
| |
| return Color(); |
| } |
| |
| void drawNativeImage(const NativeImagePtr& image, GraphicsContext& context, const FloatRect& destRect, const FloatRect& srcRect, const IntSize& srcSize, CompositeOperator compositeOp, BlendMode blendMode, const ImageOrientation& orientation) |
| { |
| auto platformContext = context.platformContext(); |
| |
| // Subsampling may have given us an image that is smaller than size(). |
| IntSize subsampledImageSize = nativeImageSize(image); |
| |
| // srcRect is in the coordinates of the unsubsampled image, so we have to map it to the subsampled image. |
| FloatRect adjustedSrcRect = srcRect; |
| if (subsampledImageSize != srcSize) |
| adjustedSrcRect = mapRect(srcRect, FloatRect({ }, srcSize), FloatRect({ }, subsampledImageSize)); |
| |
| float opacity = 1.0f; |
| |
| platformContext->DrawBitmap(image.get(), destRect, opacity, D2D1_BITMAP_INTERPOLATION_MODE_NEAREST_NEIGHBOR, adjustedSrcRect); |
| context.flush(); |
| } |
| |
| void clearNativeImageSubimages(const NativeImagePtr& image) |
| { |
| notImplemented(); |
| |
| #if CACHE_SUBIMAGES |
| if (image) |
| subimageCache().clearImage(image.get()); |
| #endif |
| } |
| |
| |
| } |