C++ (Cpp) cairo_quartz_surface_create_cg_layer Examples

Example #1

File: gfxQuartzSurface.cpp Project: ConradIrwin/gecko-dev

already_AddRefed<gfxASurface>
gfxQuartzSurface::CreateSimilarSurface(gfxContentType aType,
                                       const gfxIntSize& aSize)
{
    cairo_surface_t *surface =
        cairo_quartz_surface_create_cg_layer(mSurface, (cairo_content_t)aType,
                                             aSize.width, aSize.height);
    if (cairo_surface_status(surface)) {
        cairo_surface_destroy(surface);
        return nullptr;
    }

    nsRefPtr<gfxASurface> result = Wrap(surface);
    cairo_surface_destroy(surface);
    return result.forget();
}

Example #2

File: PrintTarget.cpp Project: Wafflespeanut/gecko-dev

already_AddRefed<DrawTarget>
PrintTarget::GetReferenceDrawTarget(DrawEventRecorder* aRecorder)
{
  if (!mRefDT) {
    const IntSize size(1, 1);

    cairo_surface_t* similar;
    switch (cairo_surface_get_type(mCairoSurface)) {
#ifdef CAIRO_HAS_WIN32_SURFACE
    case CAIRO_SURFACE_TYPE_WIN32:
      similar = cairo_win32_surface_create_with_dib(
        CairoContentToCairoFormat(cairo_surface_get_content(mCairoSurface)),
        size.width, size.height);
      break;
#endif
#ifdef CAIRO_HAS_QUARTZ_SURFACE
    case CAIRO_SURFACE_TYPE_QUARTZ:
      similar = cairo_quartz_surface_create_cg_layer(
                  mCairoSurface, cairo_surface_get_content(mCairoSurface),
                  size.width, size.height);
      break;
#endif
    default:
      similar = cairo_surface_create_similar(
                  mCairoSurface, cairo_surface_get_content(mCairoSurface),
                  size.width, size.height);
      break;
    }

    if (cairo_surface_status(similar)) {
      return nullptr;
    }

    RefPtr<DrawTarget> dt =
      Factory::CreateDrawTargetForCairoSurface(similar, size);

    // The DT addrefs the surface, so we need drop our own reference to it:
    cairo_surface_destroy(similar);

    if (!dt || !dt->IsValid()) {
      return nullptr;
    }
    mRefDT = dt.forget();
  }

  if (aRecorder) {
    if (!mRecordingRefDT) {
      RefPtr<DrawTarget> dt = CreateRecordingDrawTarget(aRecorder, mRefDT);
      if (!dt || !dt->IsValid()) {
        return nullptr;
      }
      mRecordingRefDT = dt.forget();
#ifdef DEBUG
      mRecorder = aRecorder;
#endif
    }
#ifdef DEBUG
    else {
      MOZ_ASSERT(aRecorder == mRecorder,
                 "Caching mRecordingRefDT assumes the aRecorder is an invariant");
    }
#endif

    return do_AddRef(mRecordingRefDT);
  }

  return do_AddRef(mRefDT);
}