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-rw-r--r--widget/gtk/WindowSurfaceXRender.cpp83
1 files changed, 83 insertions, 0 deletions
diff --git a/widget/gtk/WindowSurfaceXRender.cpp b/widget/gtk/WindowSurfaceXRender.cpp
new file mode 100644
index 000000000..015d623b3
--- /dev/null
+++ b/widget/gtk/WindowSurfaceXRender.cpp
@@ -0,0 +1,83 @@
+/* -*- Mode: C++; tab-width: 4; 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 "WindowSurfaceXRender.h"
+
+#include "mozilla/gfx/2D.h"
+#include "mozilla/gfx/Types.h"
+#include "gfxPlatform.h"
+
+namespace mozilla {
+namespace widget {
+
+WindowSurfaceXRender::WindowSurfaceXRender(Display* aDisplay,
+ Window aWindow,
+ Visual* aVisual,
+ unsigned int aDepth)
+ : WindowSurfaceX11(aDisplay, aWindow, aVisual, aDepth)
+ , mXlibSurface(nullptr)
+ , mGC(X11None)
+{
+}
+
+WindowSurfaceXRender::~WindowSurfaceXRender()
+{
+ if (mGC != X11None) {
+ XFreeGC(mDisplay, mGC);
+ }
+}
+
+already_AddRefed<gfx::DrawTarget>
+WindowSurfaceXRender::Lock(const LayoutDeviceIntRegion& aRegion)
+{
+ gfx::IntRect bounds = aRegion.GetBounds().ToUnknownRect();
+ gfx::IntSize size(bounds.XMost(), bounds.YMost());
+ if (!mXlibSurface || mXlibSurface->CairoStatus() ||
+ !(size <= mXlibSurface->GetSize())) {
+ mXlibSurface = gfxXlibSurface::Create(DefaultScreenOfDisplay(mDisplay),
+ mVisual,
+ size,
+ mWindow);
+ }
+ if (!mXlibSurface || mXlibSurface->CairoStatus()) {
+ return nullptr;
+ }
+
+ return gfxPlatform::GetPlatform()->CreateDrawTargetForSurface(mXlibSurface, size);
+}
+
+void
+WindowSurfaceXRender::Commit(const LayoutDeviceIntRegion& aInvalidRegion)
+{
+ AutoTArray<XRectangle, 32> xrects;
+ xrects.SetCapacity(aInvalidRegion.GetNumRects());
+
+ for (auto iter = aInvalidRegion.RectIter(); !iter.Done(); iter.Next()) {
+ const LayoutDeviceIntRect &r = iter.Get();
+ XRectangle xrect = { (short)r.x, (short)r.y, (unsigned short)r.width, (unsigned short)r.height };
+ xrects.AppendElement(xrect);
+ }
+
+ if (!mGC) {
+ mGC = XCreateGC(mDisplay, mWindow, 0, nullptr);
+ if (!mGC) {
+ NS_WARNING("Couldn't create X11 graphics context for window!");
+ return;
+ }
+ }
+
+ XSetClipRectangles(mDisplay, mGC, 0, 0, xrects.Elements(), xrects.Length(), YXBanded);
+
+ MOZ_ASSERT(mXlibSurface && mXlibSurface->CairoStatus() == 0,
+ "Attempted to commit invalid surface!");
+ gfx::IntRect bounds = aInvalidRegion.GetBounds().ToUnknownRect();
+ gfx::IntSize size(bounds.XMost(), bounds.YMost());
+ XCopyArea(mDisplay, mXlibSurface->XDrawable(), mWindow, mGC, bounds.x, bounds.y,
+ size.width, size.height, bounds.x, bounds.y);
+}
+
+} // namespace widget
+} // namespace mozilla