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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 "PrintTargetCG.h"
#include "cairo.h"
#include "cairo-quartz.h"
#include "mozilla/gfx/HelpersCairo.h"
namespace mozilla {
namespace gfx {
PrintTargetCG::PrintTargetCG(cairo_surface_t* aCairoSurface,
const IntSize& aSize)
: PrintTarget(aCairoSurface, aSize)
{
// TODO: Add memory reporting like gfxQuartzSurface.
//RecordMemoryUsed(mSize.height * 4 + sizeof(gfxQuartzSurface));
}
/* static */ already_AddRefed<PrintTargetCG>
PrintTargetCG::CreateOrNull(const IntSize& aSize, gfxImageFormat aFormat)
{
if (!Factory::CheckSurfaceSize(aSize)) {
return nullptr;
}
unsigned int width = static_cast<unsigned int>(aSize.width);
unsigned int height = static_cast<unsigned int>(aSize.height);
cairo_format_t cformat = GfxFormatToCairoFormat(aFormat);
cairo_surface_t* surface =
cairo_quartz_surface_create(cformat, width, height);
if (cairo_surface_status(surface)) {
return nullptr;
}
// The new object takes ownership of our surface reference.
RefPtr<PrintTargetCG> target = new PrintTargetCG(surface, aSize);
return target.forget();
}
/* static */ already_AddRefed<PrintTargetCG>
PrintTargetCG::CreateOrNull(CGContextRef aContext, const IntSize& aSize)
{
if (!Factory::CheckSurfaceSize(aSize)) {
return nullptr;
}
unsigned int width = static_cast<unsigned int>(aSize.width);
unsigned int height = static_cast<unsigned int>(aSize.height);
cairo_surface_t* surface =
cairo_quartz_surface_create_for_cg_context(aContext, width, height);
if (cairo_surface_status(surface)) {
return nullptr;
}
// The new object takes ownership of our surface reference.
RefPtr<PrintTargetCG> target = new PrintTargetCG(surface, aSize);
return target.forget();
}
static size_t
PutBytesNull(void* info, const void* buffer, size_t count)
{
return count;
}
already_AddRefed<DrawTarget>
PrintTargetCG::GetReferenceDrawTarget(DrawEventRecorder* aRecorder)
{
if (!mRefDT) {
const IntSize size(1, 1);
CGDataConsumerCallbacks callbacks = {PutBytesNull, nullptr};
CGDataConsumerRef consumer = CGDataConsumerCreate(nullptr, &callbacks);
CGContextRef pdfContext = CGPDFContextCreate(consumer, nullptr, nullptr);
CGDataConsumerRelease(consumer);
cairo_surface_t* similar =
cairo_quartz_surface_create_for_cg_context(
pdfContext, size.width, size.height);
CGContextRelease(pdfContext);
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;
}
if (aRecorder) {
dt = CreateRecordingDrawTarget(aRecorder, dt);
if (!dt || !dt->IsValid()) {
return nullptr;
}
}
mRefDT = dt.forget();
}
return do_AddRef(mRefDT);
}
} // namespace gfx
} // namespace mozilla
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