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//
// libavg - Media Playback Engine.
// Copyright (C) 2003-2014 Ulrich von Zadow
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Current versions can be found at www.libavg.de
//
#include "Display.h"
#ifdef __linux__
#include "X11Display.h"
#endif
#ifdef __APPLE__
#include "AppleDisplay.h"
#endif
#ifdef _WIN32
#include "WinDisplay.h"
#endif
#include "Bitmap.h"
#include "../base/Logger.h"
#include <SDL/SDL.h>
#include <SDL/SDL_syswm.h>
#include <iostream>
using namespace std;
namespace avg {
DisplayPtr Display::s_pInstance = DisplayPtr();
DisplayPtr Display::get()
{
if (!s_pInstance) {
#ifdef __linux__
s_pInstance = DisplayPtr(new X11Display());
#elif defined __APPLE__
s_pInstance = DisplayPtr(new AppleDisplay());
#elif defined _WIN32
s_pInstance = DisplayPtr(new WinDisplay());
#else
AVG_ASSERT(false);
#endif
s_pInstance->init();
}
return s_pInstance;
}
bool Display::isInitialized()
{
return s_pInstance;
}
Display::Display()
: m_bAutoPPMM(true),
m_RefreshRate(0.0f)
{
}
Display::~Display()
{
}
void Display::init()
{
m_ScreenResolution = queryScreenResolution();
m_PPMM = queryPPMM();
}
void Display::rereadScreenResolution()
{
m_ScreenResolution = queryScreenResolution();
if (m_bAutoPPMM) {
m_PPMM = queryPPMM();
}
}
IntPoint Display::getScreenResolution()
{
return m_ScreenResolution;
}
float Display::getPixelsPerMM()
{
return m_PPMM;
}
void Display::assumePixelsPerMM(float ppmm)
{
if (ppmm != 0) {
m_PPMM = ppmm;
m_bAutoPPMM = false;
}
}
glm::vec2 Display::getPhysicalScreenDimensions()
{
glm::vec2 size;
glm::vec2 screenRes = glm::vec2(getScreenResolution());
size.x = screenRes.x/m_PPMM;
size.y = screenRes.y/m_PPMM;
return size;
}
IntPoint Display::queryScreenResolution()
{
const SDL_VideoInfo* pInfo = SDL_GetVideoInfo();
return IntPoint(pInfo->current_w, pInfo->current_h);
}
float Display::getRefreshRate()
{
if (m_RefreshRate == 0.0) {
m_RefreshRate = queryRefreshRate();
AVG_TRACE(Logger::category::CONFIG, Logger::severity::INFO,
"Vertical Refresh Rate: " << m_RefreshRate);
}
return m_RefreshRate;
}
}
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