/* -*- 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); }