diff options
Diffstat (limited to 'gfx/thebes/gfxQuartzSurface.cpp')
-rw-r--r-- | gfx/thebes/gfxQuartzSurface.cpp | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/gfx/thebes/gfxQuartzSurface.cpp b/gfx/thebes/gfxQuartzSurface.cpp new file mode 100644 index 000000000..99553e0c0 --- /dev/null +++ b/gfx/thebes/gfxQuartzSurface.cpp @@ -0,0 +1,137 @@ +/* -*- 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); +} |