irrlicht/source/Irrlicht/CIrrDeviceFB.cpp

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// Copyright (C) 2002-2007 Nikolaus Gebhardt
// Copyright (C) 2007-2012 Christian Stehno
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
#include "CIrrDeviceFB.h"
#ifdef _IRR_COMPILE_WITH_FB_DEVICE_
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <sys/utsname.h>
#include <time.h>
#include <errno.h>
#include "IEventReceiver.h"
#include "os.h"
#include "CTimer.h"
#include "irrString.h"
#include "Keycodes.h"
#include "COSOperator.h"
#include "CColorConverter.h"
#include "SIrrCreationParameters.h"
#include <linux/input.h>
namespace irr
{
//! constructor
CIrrDeviceFB::CIrrDeviceFB(const SIrrlichtCreationParameters& params)
: CIrrDeviceStub(params), Framebuffer(-1), EventDevice(-1), SoftwareImage(0),
Pitch(0), FBColorFormat(video::ECF_A8R8G8B8), Close(false)
{
#ifdef _DEBUG
setDebugName("CIrrDeviceFB");
#endif
// print version, distribution etc.
// thx to LynxLuna for pointing me to the uname function
core::stringc linuxversion;
struct utsname FBInfo;
uname(&FBInfo);
linuxversion += FBInfo.sysname;
linuxversion += " ";
linuxversion += FBInfo.release;
linuxversion += " ";
linuxversion += FBInfo.version;
linuxversion += " ";
linuxversion += FBInfo.machine;
Operator = new COSOperator(linuxversion);
os::Printer::log(linuxversion.c_str(), ELL_INFORMATION);
// create window
if (params.DriverType != video::EDT_NULL)
{
// create the window, only if we do not use the null device
if (!createWindow(params.WindowSize, params.Bits))
return;
}
// create cursor control
CursorControl = new CCursorControl(this, params.DriverType == video::EDT_NULL);
// create driver
createDriver();
if (!VideoDriver)
return;
createGUIAndScene();
}
//! destructor
CIrrDeviceFB::~CIrrDeviceFB()
{
if (SoftwareImage)
munmap(SoftwareImage, CreationParams.WindowSize.Height*Pitch);
// go back to previous format
if (ioctl(Framebuffer, FBIOPUT_VSCREENINFO, &oldscreeninfo) <0)
perror("Restoring old fb mode");
if (KeyboardDevice != -1)
if (ioctl(KeyboardDevice, KDSETMODE, &KeyboardMode) <0)
perror("Restoring keyboard mode");
if (EventDevice != -1)
close(EventDevice);
if (KeyboardDevice != -1)
close(KeyboardDevice);
if (Framebuffer != -1)
close(Framebuffer);
}
bool CIrrDeviceFB::createWindow(const core::dimension2d<u32>& windowSize, u32 bits)
{
char buf[256];
CreationParams.WindowSize.Width = windowSize.Width;
CreationParams.WindowSize.Height = windowSize.Height;
KeyboardDevice = open("/dev/tty", O_RDWR);
if (KeyboardDevice == -1)
perror("Open keyboard");
if (ioctl(KeyboardDevice, KDGETMODE, &KeyboardMode) <0)
perror("Read keyboard mode");
if (ioctl(KeyboardDevice, KDSETMODE, KD_GRAPHICS) <0)
perror("Set keyboard mode");
Framebuffer=open("/dev/fb/0", O_RDWR);
if (Framebuffer == -1)
{
Framebuffer=open("/dev/fb0", O_RDWR);
if (Framebuffer == -1)
{
perror("Open framebuffer");
return false;
}
}
EventDevice = open("/dev/input/event0", O_RDONLY | O_NONBLOCK);
if (EventDevice == -1)
perror("Open event device");
// make format settings
ioctl(Framebuffer, FBIOGET_FSCREENINFO, &fbfixscreeninfo);
ioctl(Framebuffer, FBIOGET_VSCREENINFO, &oldscreeninfo);
snprintf_irr(buf, 256, "Original resolution: %d x %d\nARGB%d%d%d%d\n",oldscreeninfo.xres,oldscreeninfo.yres,
oldscreeninfo.transp.length,oldscreeninfo.red.length,oldscreeninfo.green.length,oldscreeninfo.blue.length);
os::Printer::log(buf);
memcpy(&fbscreeninfo, &oldscreeninfo, sizeof(struct fb_var_screeninfo));
if (CreationParams.DriverType != video::EDT_NULL)
{
fbscreeninfo.xres = fbscreeninfo.xres_virtual = CreationParams.WindowSize.Width;
fbscreeninfo.yres = fbscreeninfo.yres_virtual = CreationParams.WindowSize.Height;
fbscreeninfo.bits_per_pixel = 16;
fbscreeninfo.red.offset = 10;
fbscreeninfo.red.length = 5;
fbscreeninfo.green.offset = 5;
fbscreeninfo.green.length = 5;
fbscreeninfo.blue.offset = 0;
fbscreeninfo.blue.length = 5;
fbscreeninfo.transp.offset = 15;
fbscreeninfo.transp.length = 1;
ioctl(Framebuffer, FBIOPUT_VSCREENINFO, &fbscreeninfo);
ioctl(Framebuffer, FBIOGET_VSCREENINFO, &fbscreeninfo);
snprintf_irr(buf, 256, "New resolution: %d x %d (%d x %d)\nARGB%d%d%d%d\n",fbscreeninfo.xres,fbscreeninfo.yres,fbscreeninfo.xres_virtual,fbscreeninfo.yres_virtual,
fbscreeninfo.transp.length,fbscreeninfo.red.length,fbscreeninfo.green.length,fbscreeninfo.blue.length);
os::Printer::log(buf);
CreationParams.WindowSize.Width = fbscreeninfo.xres;
CreationParams.WindowSize.Height = fbscreeninfo.yres;
CreationParams.Bits = fbscreeninfo.bits_per_pixel;
Pitch = fbfixscreeninfo.line_length;
if (fbscreeninfo.bits_per_pixel == 16)
{
if (fbscreeninfo.transp.length == 0)
FBColorFormat = video::ECF_R5G6B5;
else
FBColorFormat = video::ECF_A1R5G5B5;
}
else
{
if (fbscreeninfo.transp.length == 0)
FBColorFormat = video::ECF_R8G8B8;
else
FBColorFormat = video::ECF_A8R8G8B8;
}
if (MAP_FAILED==(SoftwareImage=(u8*)mmap(0, CreationParams.WindowSize.Height*Pitch, PROT_READ|PROT_WRITE, MAP_SHARED, Framebuffer, 0)))
{
perror("mmap render target");
return false;
}
}
return true;
}
//! create the driver
void CIrrDeviceFB::createDriver()
{
switch(CreationParams.DriverType)
{
case video::EDT_SOFTWARE:
#ifdef _IRR_COMPILE_WITH_SOFTWARE_
VideoDriver = video::createSoftwareDriver(CreationParams.WindowSize, CreationParams.Fullscreen, FileSystem, this);
#else
os::Printer::log("No Software driver support compiled in.", ELL_WARNING);
#endif
break;
case video::EDT_BURNINGSVIDEO:
#ifdef _IRR_COMPILE_WITH_BURNINGSVIDEO_
VideoDriver = video::createBurningVideoDriver(CreationParams, FileSystem, this);
#else
os::Printer::log("Burning's video driver was not compiled in.", ELL_WARNING);
#endif
break;
case DEPRECATED_EDT_DIRECT3D8_NO_LONGER_EXISTS:
case video::EDT_OPENGL:
case video::EDT_DIRECT3D9:
os::Printer::log("This driver is not available in FB. Try Software renderer.",
ELL_WARNING);
break;
default:
VideoDriver = video::createNullDriver(FileSystem, CreationParams.WindowSize);
break;
}
}
//! runs the device. Returns false if device wants to be deleted
bool CIrrDeviceFB::run()
{
os::Timer::tick();
struct input_event ev;
if (EventDevice>=0)
{
if ((read(EventDevice, &ev, sizeof(input_event)) < 0) &&
errno != EAGAIN)
perror("Read input event");
if (ev.type == EV_KEY)
{
irr::SEvent irrevent;
irrevent.EventType = irr::EET_KEY_INPUT_EVENT;
irrevent.KeyInput.PressedDown = true;
switch (ev.code)
{
case KEY_RIGHTCTRL:
case KEY_LEFTCTRL:
irrevent.KeyInput.Control = true;
break;
case KEY_RIGHTSHIFT:
case KEY_LEFTSHIFT:
irrevent.KeyInput.Shift = true;
break;
case KEY_ESC:
irrevent.KeyInput.Key = (EKEY_CODE)0x1B;
break;
case KEY_SPACE:
irrevent.KeyInput.Key = (EKEY_CODE)0x20;
break;
case KEY_UP:
irrevent.KeyInput.Key = (EKEY_CODE)0x26;
break;
case KEY_LEFT:
irrevent.KeyInput.Key = (EKEY_CODE)0x25;
break;
case KEY_RIGHT:
irrevent.KeyInput.Key = (EKEY_CODE)0x27;
break;
case KEY_DOWN:
irrevent.KeyInput.Key = (EKEY_CODE)0x28;
break;
default:
irrevent.KeyInput.Key = (EKEY_CODE)0;
break;
}
postEventFromUser(irrevent);
}
}
return !Close;
}
//! Pause the current process for the minimum time allowed only to allow other processes to execute
void CIrrDeviceFB::yield()
{
struct timespec ts = {0,0};
nanosleep(&ts, NULL);
}
//! Pause execution and let other processes to run for a specified amount of time.
void CIrrDeviceFB::sleep(u32 timeMs, bool pauseTimer=false)
{
bool wasStopped = Timer ? Timer->isStopped() : true;
struct timespec ts;
ts.tv_sec = (time_t) (timeMs / 1000);
ts.tv_nsec = (long) (timeMs % 1000) * 1000000;
if (pauseTimer && !wasStopped)
Timer->stop();
nanosleep(&ts, NULL);
if (pauseTimer && !wasStopped)
Timer->start();
}
//! presents a surface in the client area
bool CIrrDeviceFB::present(video::IImage* image, void* windowId, core::rect<s32>* src )
{
// this is only necessary for software drivers.
if (CreationParams.DriverType != video::EDT_SOFTWARE && CreationParams.DriverType != video::EDT_BURNINGSVIDEO)
return false;
if (!SoftwareImage)
return false;
u8* destData = SoftwareImage;
u32 srcwidth = (u32)image->getDimension().Width;
u32 srcheight = (u32)image->getDimension().Height;
// clip images
srcheight = core::min_(srcheight, CreationParams.WindowSize.Height);
srcwidth = core::min_(srcwidth, CreationParams.WindowSize.Width);
u8* srcdata = (u8*)image->lock();
for (u32 y=0; y<srcheight; ++y)
{
video::CColorConverter::convert_viaFormat(srcdata, image->getColorFormat(), srcwidth, destData, FBColorFormat);
srcdata+=image->getPitch();
destData+=Pitch;
}
image->unlock();
msync(SoftwareImage,CreationParams.WindowSize.Width*CreationParams.WindowSize.Height,MS_ASYNC);
return true;
}
//! notifies the device that it should close itself
void CIrrDeviceFB::closeDevice()
{
Close = true;
}
//! returns if window is active. if not, nothing need to be drawn
bool CIrrDeviceFB::isWindowActive() const
{
return true;
}
//! returns if window has focus
bool CIrrDeviceFB::isWindowFocused() const
{
return true;
}
//! returns if window is minimized
bool CIrrDeviceFB::isWindowMinimized() const
{
return false;
}
//! sets the caption of the window
void CIrrDeviceFB::setWindowCaption(const wchar_t* text)
{
}
//! Sets if the window should be resizeable in windowed mode.
void CIrrDeviceFB::setResizable(bool resize)
{
}
//! Minimizes window
void CIrrDeviceFB::minimizeWindow()
{
}
//! Maximizes window
void CIrrDeviceFB::maximizeWindow()
{
}
//! Restores original window size
void CIrrDeviceFB::restoreWindow()
{
}
//! Returns the type of this device
E_DEVICE_TYPE CIrrDeviceFB::getType() const
{
return EIDT_FRAMEBUFFER;
}
} // end namespace irr
#endif // _IRR_USE_FB_DEVICE_