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-rw-r--r--gfx/thebes/gfxQuartzSurface.cpp137
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);
+}