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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* 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/.
*
* Some of this code is based on Skia source code, covered by the following
* license notice (see readlicense_oo for the full license):
*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
*/
#include <skia/x11/gdiimpl.hxx>
#include <tools/sk_app/unix/WindowContextFactory_unix.h>
#include <tools/sk_app/WindowContext.h>
#include <vcl/skia/SkiaHelper.hxx>
#include <skia/zone.hxx>
X11SkiaSalGraphicsImpl::X11SkiaSalGraphicsImpl(X11SalGraphics& rParent)
: SkiaSalGraphicsImpl(rParent, rParent.GetGeometryProvider())
, mX11Parent(rParent)
{
}
X11SkiaSalGraphicsImpl::~X11SkiaSalGraphicsImpl() {}
void X11SkiaSalGraphicsImpl::Init()
{
// The m_pFrame and m_pVDev pointers are updated late in X11
setProvider(mX11Parent.GetGeometryProvider());
SkiaSalGraphicsImpl::Init();
}
void X11SkiaSalGraphicsImpl::createWindowContext()
{
SkiaZone zone;
sk_app::DisplayParams displayParams;
displayParams.fColorType = kN32_SkColorType;
sk_app::window_context_factory::XlibWindowInfo winInfo;
winInfo.fDisplay = mX11Parent.GetXDisplay();
winInfo.fWindow = mX11Parent.GetDrawable();
assert(winInfo.fDisplay);
// Allow window being None if offscreen, this is used to temporarily create GrContext
// for an offscreen surface.
assert(winInfo.fWindow != None || isOffscreen());
winInfo.fFBConfig = nullptr; // not used
winInfo.fVisualInfo = const_cast<SalVisual*>(&mX11Parent.GetVisual());
#ifdef DBG_UTIL
// Our patched Skia has VulkanWindowContext that shares GrContext, which requires
// that the X11 visual is always the same. Ensure it is so.
static VisualID checkVisualID = -1U;
assert(checkVisualID == -1U || winInfo.fVisualInfo->visualid == checkVisualID);
checkVisualID = winInfo.fVisualInfo->visualid;
#endif
winInfo.fWidth = GetWidth();
winInfo.fHeight = GetHeight();
switch (SkiaHelper::renderMethodToUse())
{
case SkiaHelper::RenderRaster:
// TODO The Skia Xlib code actually requires the non-native color type to work properly.
displayParams.fColorType
= (displayParams.fColorType == kBGRA_8888_SkColorType ? kRGBA_8888_SkColorType
: kBGRA_8888_SkColorType);
mWindowContext
= sk_app::window_context_factory::MakeRasterForXlib(winInfo, displayParams);
mIsGPU = false;
break;
case SkiaHelper::RenderVulkan:
mWindowContext
= sk_app::window_context_factory::MakeVulkanForXlib(winInfo, displayParams);
mIsGPU = true;
break;
}
}
bool X11SkiaSalGraphicsImpl::avoidRecreateByResize() const
{
if (!mSurface || isOffscreen())
return false;
// Skia's WindowContext uses actual dimensions of the X window, which due to X11 being
// asynchronous may be temporarily different from what VCL thinks are the dimensions.
// That can lead to us repeatedly calling recreateSurface() because of "incorrect"
// size, and we otherwise need to check for size changes, because VCL does not inform us.
// Avoid the problem here by checking the size of the X window and bail out if Skia
// would just return the same size as it is now.
Window r;
int x, y;
unsigned int w, h, border, depth;
XGetGeometry(mX11Parent.GetXDisplay(), mX11Parent.GetDrawable(), &r, &x, &y, &w, &h, &border,
&depth);
return mSurface->width() == int(w) && mSurface->height() == int(h);
}
void X11SkiaSalGraphicsImpl::DeInit()
{
SkiaZone zone;
SkiaSalGraphicsImpl::DeInit();
mWindowContext.reset();
}
void X11SkiaSalGraphicsImpl::freeResources() {}
void X11SkiaSalGraphicsImpl::performFlush()
{
SkiaZone zone;
mPendingPixelsToFlush = 0;
// TODO XPutImage() is somewhat inefficient, XShmPutImage() should be preferred.
mWindowContext->swapBuffers();
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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