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75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "gfxQuartzImageSurface.h"
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#include "gfxImageSurface.h"
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#include "cairo-quartz-image.h"
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gfxQuartzImageSurface::gfxQuartzImageSurface(gfxImageSurface *imageSurface)
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{
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if (imageSurface->CairoSurface() == nullptr)
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return;
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cairo_surface_t *surf = cairo_quartz_image_surface_create (imageSurface->CairoSurface());
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Init (surf);
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mSize = ComputeSize();
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}
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gfxQuartzImageSurface::gfxQuartzImageSurface(cairo_surface_t *csurf)
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{
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Init (csurf, true);
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mSize = ComputeSize();
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}
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gfxQuartzImageSurface::~gfxQuartzImageSurface()
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{
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}
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gfxIntSize
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gfxQuartzImageSurface::ComputeSize()
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{
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if (mSurfaceValid) {
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cairo_surface_t* isurf = cairo_quartz_image_surface_get_image(mSurface);
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if (isurf) {
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return gfxIntSize(cairo_image_surface_get_width(isurf),
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cairo_image_surface_get_height(isurf));
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}
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}
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// If we reach here then something went wrong. Just use the same default
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// value as gfxASurface::GetSize.
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return gfxIntSize(-1, -1);
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}
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int32_t
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gfxQuartzImageSurface::KnownMemoryUsed()
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{
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// This surface doesn't own any memory itself, but we want to report here the
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// amount of memory that the surface it wraps uses.
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nsRefPtr<gfxImageSurface> imgSurface = GetAsImageSurface();
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if (imgSurface)
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return imgSurface->KnownMemoryUsed();
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return 0;
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}
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already_AddRefed<gfxImageSurface>
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gfxQuartzImageSurface::GetAsImageSurface()
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{
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if (!mSurfaceValid)
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return nullptr;
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cairo_surface_t *isurf = cairo_quartz_image_surface_get_image (CairoSurface());
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if (!isurf) {
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NS_WARNING ("Couldn't obtain an image surface from a QuartzImageSurface?!");
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return nullptr;
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}
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nsRefPtr<gfxImageSurface> result = gfxASurface::Wrap(isurf).downcast<gfxImageSurface>();
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result->SetOpaqueRect(GetOpaqueRect());
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return result.forget();
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}
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