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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* 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::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
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