The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/content/canvas/src/DocumentRendererParent.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,57 @@
     1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.7 +
     1.8 +#include "mozilla/ipc/DocumentRendererParent.h"
     1.9 +#include "gfxImageSurface.h"
    1.10 +#include "gfxPattern.h"
    1.11 +#include "nsICanvasRenderingContextInternal.h"
    1.12 +
    1.13 +using namespace mozilla::ipc;
    1.14 +
    1.15 +DocumentRendererParent::DocumentRendererParent()
    1.16 +{}
    1.17 +
    1.18 +DocumentRendererParent::~DocumentRendererParent()
    1.19 +{}
    1.20 +
    1.21 +void DocumentRendererParent::SetCanvasContext(nsICanvasRenderingContextInternal* aCanvas,
    1.22 +                                              gfxContext* ctx)
    1.23 +{
    1.24 +    mCanvas = aCanvas;
    1.25 +    mCanvasContext = ctx;
    1.26 +}
    1.27 +
    1.28 +void DocumentRendererParent::DrawToCanvas(const nsIntSize& aSize,
    1.29 +                                          const nsCString& aData)
    1.30 +{
    1.31 +    if (!mCanvas || !mCanvasContext)
    1.32 +        return;
    1.33 +
    1.34 +    nsRefPtr<gfxImageSurface> surf =
    1.35 +        new gfxImageSurface(reinterpret_cast<uint8_t*>(const_cast<nsCString&>(aData).BeginWriting()),
    1.36 +                            gfxIntSize(aSize.width, aSize.height),
    1.37 +                            aSize.width * 4,
    1.38 +                            gfxImageFormat::ARGB32);
    1.39 +    nsRefPtr<gfxPattern> pat = new gfxPattern(surf);
    1.40 +
    1.41 +    gfxRect rect(gfxPoint(0, 0), gfxSize(aSize.width, aSize.height));
    1.42 +    mCanvasContext->NewPath();
    1.43 +    mCanvasContext->PixelSnappedRectangleAndSetPattern(rect, pat);
    1.44 +    mCanvasContext->Fill();
    1.45 +
    1.46 +    // get rid of the pattern surface ref, because aData is very
    1.47 +    // likely to go away shortly
    1.48 +    mCanvasContext->SetColor(gfxRGBA(1,1,1,1));
    1.49 +
    1.50 +    gfxRect damageRect = mCanvasContext->UserToDevice(rect);
    1.51 +    mCanvas->Redraw(damageRect);
    1.52 +}
    1.53 +
    1.54 +bool
    1.55 +DocumentRendererParent::Recv__delete__(const nsIntSize& renderedSize,
    1.56 +                                       const nsCString& data)
    1.57 +{
    1.58 +    DrawToCanvas(renderedSize, data);
    1.59 +    return true;
    1.60 +}