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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "gfxQuartzSurface.h"
#include "gfxContext.h"
#include "gfxImageSurface.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/gfx/HelpersCairo.h"
#include "cairo-quartz.h"
void
gfxQuartzSurface::MakeInvalid()
{
mSize = mozilla::gfx::IntSize(-1, -1);
}
gfxQuartzSurface::gfxQuartzSurface(const mozilla::gfx::IntSize& desiredSize,
gfxImageFormat format)
: mCGContext(nullptr), mSize(desiredSize)
{
if (!mozilla::gfx::Factory::CheckSurfaceSize(desiredSize))
MakeInvalid();
unsigned int width = static_cast<unsigned int>(mSize.width);
unsigned int height = static_cast<unsigned int>(mSize.height);
cairo_format_t cformat = GfxFormatToCairoFormat(format);
cairo_surface_t *surf = cairo_quartz_surface_create(cformat, width, height);
mCGContext = cairo_quartz_surface_get_cg_context (surf);
CGContextRetain(mCGContext);
Init(surf);
if (mSurfaceValid) {
RecordMemoryUsed(mSize.height * 4 + sizeof(gfxQuartzSurface));
}
}
gfxQuartzSurface::gfxQuartzSurface(CGContextRef context,
const mozilla::gfx::IntSize& size)
: mCGContext(context), mSize(size)
{
if (!mozilla::gfx::Factory::CheckSurfaceSize(size))
MakeInvalid();
unsigned int width = static_cast<unsigned int>(mSize.width);
unsigned int height = static_cast<unsigned int>(mSize.height);
cairo_surface_t *surf =
cairo_quartz_surface_create_for_cg_context(context,
width, height);
CGContextRetain(mCGContext);
Init(surf);
if (mSurfaceValid) {
RecordMemoryUsed(mSize.height * 4 + sizeof(gfxQuartzSurface));
}
}
gfxQuartzSurface::gfxQuartzSurface(cairo_surface_t *csurf,
const mozilla::gfx::IntSize& aSize) :
mSize(aSize)
{
mCGContext = cairo_quartz_surface_get_cg_context (csurf);
CGContextRetain (mCGContext);
Init(csurf, true);
}
gfxQuartzSurface::gfxQuartzSurface(unsigned char *data,
const mozilla::gfx::IntSize& aSize,
long stride,
gfxImageFormat format)
: mCGContext(nullptr), mSize(aSize.width, aSize.height)
{
if (!mozilla::gfx::Factory::CheckSurfaceSize(aSize))
MakeInvalid();
cairo_format_t cformat = GfxFormatToCairoFormat(format);
cairo_surface_t *surf = cairo_quartz_surface_create_for_data
(data, cformat, aSize.width, aSize.height, stride);
mCGContext = cairo_quartz_surface_get_cg_context (surf);
CGContextRetain(mCGContext);
Init(surf);
if (mSurfaceValid) {
RecordMemoryUsed(mSize.height * stride + sizeof(gfxQuartzSurface));
}
}
already_AddRefed<gfxASurface>
gfxQuartzSurface::CreateSimilarSurface(gfxContentType aType,
const mozilla::gfx::IntSize& 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;
}
RefPtr<gfxASurface> result = Wrap(surface, aSize);
cairo_surface_destroy(surface);
return result.forget();
}
already_AddRefed<gfxImageSurface> gfxQuartzSurface::GetAsImageSurface()
{
cairo_surface_t *surface = cairo_quartz_surface_get_image(mSurface);
if (!surface || cairo_surface_status(surface))
return nullptr;
RefPtr<gfxASurface> img = Wrap(surface);
// cairo_quartz_surface_get_image returns a referenced image, and thebes
// shares the refcounts of Cairo surfaces. However, Wrap also adds a
// reference to the image. We need to remove one of these references
// explicitly so we don't leak.
img.get()->Release();
img->SetOpaqueRect(GetOpaqueRect());
return img.forget().downcast<gfxImageSurface>();
}
gfxQuartzSurface::~gfxQuartzSurface()
{
CGContextRelease(mCGContext);
}
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