1 files changed, 169 insertions, 0 deletions
diff --git a/gfx/thebes/gfxWindowsSurface.cpp b/gfx/thebes/gfxWindowsSurface.cpp
new file mode 100644
index 000000000..e2d90883b
--- /dev/null
+++ b/gfx/thebes/gfxWindowsSurface.cpp
@@ -0,0 +1,169 @@
+/* -*- 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 "gfxWindowsSurface.h"
+#include "gfxContext.h"
+#include "gfxPlatform.h"
+#include "mozilla/gfx/2D.h"
+#include "mozilla/gfx/HelpersCairo.h"
+#include "mozilla/gfx/Logging.h"
+
+#include "cairo.h"
+#include "cairo-win32.h"
+
+#include "nsString.h"
+
+gfxWindowsSurface::gfxWindowsSurface(HDC dc, uint32_t flags) :
+    mOwnsDC(false), mDC(dc), mWnd(nullptr)
+{
+    InitWithDC(flags);
+}
+
+gfxWindowsSurface::gfxWindowsSurface(IDirect3DSurface9 *surface, uint32_t flags) :
+    mOwnsDC(false), mDC(0), mWnd(nullptr)
+{
+    cairo_surface_t *surf = cairo_win32_surface_create_with_d3dsurface9(surface);
+    Init(surf);
+}
+
+
+void
+gfxWindowsSurface::MakeInvalid(mozilla::gfx::IntSize& size)
+{
+    size = mozilla::gfx::IntSize(-1, -1);
+}
+
+gfxWindowsSurface::gfxWindowsSurface(const mozilla::gfx::IntSize& realSize, gfxImageFormat imageFormat) :
+    mOwnsDC(false), mWnd(nullptr)
+{
+    mozilla::gfx::IntSize size(realSize);
+    if (!mozilla::gfx::Factory::CheckSurfaceSize(size))
+        MakeInvalid(size);
+
+    cairo_format_t cformat = GfxFormatToCairoFormat(imageFormat);
+    cairo_surface_t *surf =
+        cairo_win32_surface_create_with_dib(cformat, size.width, size.height);
+
+    Init(surf);
+
+    if (CairoStatus() == CAIRO_STATUS_SUCCESS) {
+        mDC = cairo_win32_surface_get_dc(CairoSurface());
+        RecordMemoryUsed(size.width * size.height * 4 + sizeof(gfxWindowsSurface));
+    } else {
+        mDC = nullptr;
+    }
+}
+
+gfxWindowsSurface::gfxWindowsSurface(cairo_surface_t *csurf) :
+    mOwnsDC(false), mWnd(nullptr)
+{
+    if (cairo_surface_status(csurf) == 0)
+        mDC = cairo_win32_surface_get_dc(csurf);
+    else
+        mDC = nullptr;
+
+    MOZ_ASSERT(cairo_surface_get_type(csurf) != CAIRO_SURFACE_TYPE_WIN32_PRINTING);
+
+    Init(csurf, true);
+}
+
+void
+gfxWindowsSurface::InitWithDC(uint32_t flags)
+{
+    if (flags & FLAG_IS_TRANSPARENT) {
+        Init(cairo_win32_surface_create_with_alpha(mDC));
+    } else {
+        Init(cairo_win32_surface_create(mDC));
+    }
+}
+
+already_AddRefed<gfxASurface>
+gfxWindowsSurface::CreateSimilarSurface(gfxContentType aContent,
+                                        const mozilla::gfx::IntSize& aSize)
+{
+    if (!mSurface || !mSurfaceValid) {
+        return nullptr;
+    }
+
+    cairo_surface_t *surface;
+    if (GetContentType() == gfxContentType::COLOR_ALPHA) {
+        // When creating a similar surface to a transparent surface, ensure
+        // the new surface uses a DIB. cairo_surface_create_similar won't
+        // use  a DIB for a gfxContentType::COLOR surface if this surface doesn't
+        // have a DIB (e.g. if we're a transparent window surface). But
+        // we need a DIB to perform well if the new surface is composited into
+        // a surface that's the result of create_similar(gfxContentType::COLOR_ALPHA)
+        // (e.g. a backbuffer for the window) --- that new surface *would*
+        // have a DIB.
+        gfxImageFormat gformat =
+            gfxPlatform::GetPlatform()->OptimalFormatForContent(aContent);
+        cairo_format_t cformat = GfxFormatToCairoFormat(gformat);
+        surface = cairo_win32_surface_create_with_dib(cformat, aSize.width,
+                                                      aSize.height);
+    } else {
+        surface =
+          cairo_surface_create_similar(mSurface, (cairo_content_t)(int)aContent,
+                                       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();
+}
+
+gfxWindowsSurface::~gfxWindowsSurface()
+{
+    if (mOwnsDC) {
+        if (mWnd)
+            ::ReleaseDC(mWnd, mDC);
+        else
+            ::DeleteDC(mDC);
+    }
+}
+
+HDC
+gfxWindowsSurface::GetDC()
+{
+    return cairo_win32_surface_get_dc (CairoSurface());
+}
+
+already_AddRefed<gfxImageSurface>
+gfxWindowsSurface::GetAsImageSurface()
+{
+    if (!mSurfaceValid) {
+        NS_WARNING ("GetImageSurface on an invalid (null) surface; who's calling this without checking for surface errors?");
+        return nullptr;
+    }
+
+    NS_ASSERTION(CairoSurface() != nullptr, "CairoSurface() shouldn't be nullptr when mSurfaceValid is TRUE!");
+
+    cairo_surface_t *isurf = cairo_win32_surface_get_image(CairoSurface());
+    if (!isurf)
+        return nullptr;
+
+    RefPtr<gfxImageSurface> result = gfxASurface::Wrap(isurf).downcast<gfxImageSurface>();
+    result->SetOpaqueRect(GetOpaqueRect());
+
+    return result.forget();
+}
+
+const mozilla::gfx::IntSize
+gfxWindowsSurface::GetSize() const
+{
+    if (!mSurfaceValid) {
+        NS_WARNING ("GetImageSurface on an invalid (null) surface; who's calling this without checking for surface errors?");
+        return mozilla::gfx::IntSize(-1, -1);
+    }
+
+    NS_ASSERTION(mSurface != nullptr, "CairoSurface() shouldn't be nullptr when mSurfaceValid is TRUE!");
+
+    return mozilla::gfx::IntSize(cairo_win32_surface_get_width(mSurface),
+                      cairo_win32_surface_get_height(mSurface));
+}