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/***************************************************************************
*
* Copyright 2010, 2011 BMW Car IT GmbH
* Copyright (C) 2011 DENSO CORPORATION and Robert Bosch Car Multimedia Gmbh
*
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
****************************************************************************/
#include "WindowSystems/WaylandDrmWindowSystem.h"
#include "Log.h"
#include <linux/fb.h>
#include <fcntl.h>
#include <iomanip>
#include <gbm.h>
#include <libudev.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
#include "WindowSystems/WaylandEvdevInputEvent.h"
static const char default_seat[] = "seat0";
WaylandDrmWindowSystem::WaylandDrmWindowSystem(const char* displayname, int width, int height, Scene* pScene, InputManager* pInputManager)
: WaylandBaseWindowSystem(displayname, width, height, pScene, pInputManager)
, m_fdDev(-1), m_gbm(NULL)
{
LOG_DEBUG("WaylandDrmWindowSystem", "creating WaylandDrmWindowSystem width:" << width << " height:" << height);
// Because of using DrmMode, it's not necessary to use frame timer.
m_bUseFrameTimer = false;
}
WaylandDrmWindowSystem::~WaylandDrmWindowSystem()
{
if (m_gbm != NULL)
gbm_device_destroy(m_gbm);
if (m_fdDev >= 0)
drmDropMaster(m_fdDev);
}
bool WaylandDrmWindowSystem::initGraphicSystem()
{
graphicSystem->setBaseWindowSystem(this);
bool ans = graphicSystem->init((void*)m_gbm, (void*)NULL);
if (true != ans)
{
LOG_ERROR("WaylandDrmWindowSystem", "Failed to init graphic system");
return false;
}
graphicSystem->updateScreenList(m_pScene->getScreenList());
return true;
}
bool WaylandDrmWindowSystem::createNativeContext()
{
struct udev* udev;
struct udev_device *device, *drm_device;
struct udev_enumerate* e;
struct udev_list_entry* entry;
const char *path, *device_seat;
const char *seat = default_seat;
udev = udev_new();
if (udev == NULL)
{
LOG_ERROR("WaylandDrmWindowSystem", "failed to initialize udev context.");
return false;
}
e = udev_enumerate_new(udev);
udev_enumerate_add_match_subsystem(e, "drm");
udev_enumerate_add_match_sysname(e, "card[0-9]*");
udev_enumerate_scan_devices(e);
drm_device = NULL;
udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e))
{
path = udev_list_entry_get_name(entry);
device = udev_device_new_from_syspath(udev, path);
device_seat = udev_device_get_property_value(device, "ID_SEAT");
if (!device_seat)
device_seat = default_seat;
if (strcmp(device_seat, seat) == 0)
{
drm_device = device;
break;
}
udev_device_unref(device);
}
if (drm_device == NULL)
{
LOG_ERROR("WaylandDrmWindowSystem", "no drm device found");
return false;
}
const char* filename;
filename = udev_device_get_devnode(drm_device);
m_fdDev = open(filename, O_RDWR | O_CLOEXEC);
if (m_fdDev < 0)
{
LOG_ERROR("WaylandDrmWindowSystem", "failed to open device");
return false;
}
LOG_DEBUG("WaylandDrmWindowSystem", "Device name: " << filename << " fd: " << m_fdDev);
m_gbm = gbm_create_device(m_fdDev);
if (m_gbm == NULL)
{
LOG_ERROR("WaylandDrmWindowSystem", "failed to create gbm device");
return false;
}
udev_device_unref(drm_device);
LOG_DEBUG("WaylandDrmWindowSystem", "SUCCESS:create gbm device");
return true;
}
bool WaylandDrmWindowSystem::createInputEvent()
{
m_inputEvent = new WaylandEvdevInputEvent(this);
m_inputEvent->setupInputEvent();
return true;
}
void WaylandDrmWindowSystem::checkForNewSurfaceNativeContent()
{
m_pScene->lockScene();
LmScreenList screenList = m_pScene->getScreenList();
LmScreenListIterator iter = screenList.begin();
LmScreenListIterator iterEnd = screenList.end();
for (; iter != iterEnd; ++iter)
{
LayerList layers = m_pScene->getCurrentRenderOrder((*iter)->getID());
for (LayerListConstIterator current = layers.begin(); current != layers.end(); current++)
{
SurfaceList surfaces = (*current)->getAllSurfaces();
for (SurfaceListConstIterator currentS = surfaces.begin(); currentS != surfaces.end(); currentS++)
{
if ((*currentS)->hasNativeContent())
{
graphicSystem->switchScreen((*iter)->getID());
allocatePlatformSurface(*currentS);
}
else // While we are at it, also cleanup any stale native content
{
deallocatePlatformSurface(*currentS);
}
}
}
}
m_pScene->unlockScene();
}
void WaylandDrmWindowSystem::RedrawAllLayers(bool clear, bool swap)
{
LmScreenList screenList = m_pScene->getScreenList();
LmScreenListIterator iter = screenList.begin();
LmScreenListIterator iterEnd = screenList.end();
for (; iter != iterEnd; ++iter)
{
LayerList layers = m_pScene->getCurrentRenderOrder((*iter)->getID());
LayerList swLayers;
// TODO: bRedraw is overly conservative if layers includes a hardware layer
bool bRedraw = m_forceComposition || graphicSystem->needsRedraw(layers) || (m_systemState == REDRAW_STATE);
if (bRedraw)
{
graphicSystem->switchScreen((*iter)->getID());
graphicSystem->activateGraphicContext();
if (clear)
{
graphicSystem->clearBackground();
}
}
for (std::list<Layer*>::const_iterator current = layers.begin(); current != layers.end(); ++current)
{
if ((*current)->getLayerType() == Hardware)
{
if (m_forceComposition || graphicSystem->needsRedraw(*current))
{
renderHWLayer(*current);
}
}
else if (bRedraw)
{
swLayers.push_back(*current);
}
}
if (bRedraw)
{
graphicSystem->renderSWLayers(swLayers, false); // Already cleared
if (swap)
{
graphicSystem->swapBuffers();
}
graphicSystem->releaseGraphicContext();
if (m_debugMode)
{
printDebug();
}
calculateFps();
m_systemState = IDLE_STATE;
}
}
}
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