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