mirror of
https://github.com/mozilla/gecko-dev.git
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84 lines
2.7 KiB
C++
84 lines
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "WindowSurfaceXRender.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/gfx/Types.h"
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#include "gfxPlatform.h"
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namespace mozilla {
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namespace widget {
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WindowSurfaceXRender::WindowSurfaceXRender(Display* aDisplay,
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Window aWindow,
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Visual* aVisual,
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unsigned int aDepth)
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: WindowSurfaceX11(aDisplay, aWindow, aVisual, aDepth)
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, mXlibSurface(nullptr)
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, mGC(X11None)
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{
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}
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WindowSurfaceXRender::~WindowSurfaceXRender()
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{
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if (mGC != X11None) {
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XFreeGC(mDisplay, mGC);
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}
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}
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already_AddRefed<gfx::DrawTarget>
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WindowSurfaceXRender::Lock(const LayoutDeviceIntRegion& aRegion)
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{
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gfx::IntRect bounds = aRegion.GetBounds().ToUnknownRect();
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gfx::IntSize size(bounds.XMost(), bounds.YMost());
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if (!mXlibSurface || mXlibSurface->CairoStatus() ||
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!(size <= mXlibSurface->GetSize())) {
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mXlibSurface = gfxXlibSurface::Create(DefaultScreenOfDisplay(mDisplay),
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mVisual,
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size,
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mWindow);
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}
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if (!mXlibSurface || mXlibSurface->CairoStatus()) {
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return nullptr;
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}
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return gfxPlatform::GetPlatform()->CreateDrawTargetForSurface(mXlibSurface, size);
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}
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void
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WindowSurfaceXRender::Commit(const LayoutDeviceIntRegion& aInvalidRegion)
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{
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AutoTArray<XRectangle, 32> xrects;
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xrects.SetCapacity(aInvalidRegion.GetNumRects());
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for (auto iter = aInvalidRegion.RectIter(); !iter.Done(); iter.Next()) {
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const LayoutDeviceIntRect &r = iter.Get();
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XRectangle xrect = { (short)r.x, (short)r.y, (unsigned short)r.width, (unsigned short)r.height };
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xrects.AppendElement(xrect);
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}
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if (!mGC) {
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mGC = XCreateGC(mDisplay, mWindow, 0, nullptr);
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if (!mGC) {
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NS_WARNING("Couldn't create X11 graphics context for window!");
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return;
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}
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}
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XSetClipRectangles(mDisplay, mGC, 0, 0, xrects.Elements(), xrects.Length(), YXBanded);
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MOZ_ASSERT(mXlibSurface && mXlibSurface->CairoStatus() == 0,
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"Attempted to commit invalid surface!");
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gfx::IntRect bounds = aInvalidRegion.GetBounds().ToUnknownRect();
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gfx::IntSize size(bounds.XMost(), bounds.YMost());
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XCopyArea(mDisplay, mXlibSurface->XDrawable(), mWindow, mGC, bounds.x, bounds.y,
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size.width, size.height, bounds.x, bounds.y);
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}
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} // namespace widget
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} // namespace mozilla
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