Developer Documentation

MemInfo.cc
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40 \*===========================================================================*/
41
42
43
44 #include "MemInfo.hh"
45 #include <OpenFlipper/Utils/Memory/RAMInfo.hh>
46
47 #include <QTimer>
48
49 // GPU Memory information
50 #define GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX 0x9048
51 #define GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX 0x9049
52
53 void MemInfoPlugin::initializePlugin()
54 {
55
56 }
57
58
59 void MemInfoPlugin::pluginsInitialized() {
60
61 // Check extension for NVIDIA memory information
62 // QString glExtensions = QString((const char*)glGetString(GL_EXTENSIONS));
63
64 updateTimer_ = new QTimer();
65 updateTimer_->setSingleShot(false);
66
67 // NVIDIA cards
68 if ( ACG::checkExtensionSupported("GL_NVX_gpu_memory_info") ) {
69
70 // emit log(LOGINFO,"NVIDIA card Memory info supported, installing gpu memory monitor into status bar");
71
72 gpuMemBar_= new QProgressBar();
73 gpuMemBar_->setFixedWidth(260);
74 gpuMemBar_->setFormat( "GPU Mem %p% %v/%m MB" );
75
76 emit addWidgetToStatusbar(gpuMemBar_);
77
78 connect(updateTimer_,SIGNAL(timeout()),this,SLOT(nvidiaMemoryInfoUpdate()));
79
80 updateTimer_->start(4000);
81
82 nvidiaMemoryInfoUpdate();
83 }
84
85 // Main Memory information
86 // #ifdef ARCH_DARWIN //Apple
87
88 // #else // Linux and Windows
89
90 // emit log(LOGINFO,"Main Memory monitoring supported, installing main memory monitor into status bar");
91
92 mainMemBar_= new QProgressBar();
93 mainMemBar_->setFixedWidth(260);
94 mainMemBar_->setFormat( "Mem %p% %v/%m MB" );
95
96 emit addWidgetToStatusbar(mainMemBar_);
97
98 connect(updateTimer_,SIGNAL(timeout()),this,SLOT(cpuMemoryInfoUpdate()));
99
100 updateTimer_->start(4000);
101
102 cpuMemoryInfoUpdate();
103
104 //#endif
105
106 }
107
108 MemInfoPlugin::MemInfoPlugin():
109 gpuMemBar_(NULL),
110 mainMemBar_(NULL),
111 updateTimer_(NULL)
112 {
113
114 }
115
116 MemInfoPlugin::~MemInfoPlugin() {
117 delete updateTimer_;
118 }
119
120 void MemInfoPlugin::nvidiaMemoryInfoUpdate() {
121
122 if (gpuMemBar_) {
123 // get total memory on gpu
124 GLint total_mem_kb = 0;
125 glGetIntegerv(GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX, &total_mem_kb);
126
127 // get currently available memory on gpu
128 GLint cur_avail_mem_kb = 0;
129 glGetIntegerv(GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX, &cur_avail_mem_kb);
130
131 gpuMemBar_->setRange( 0 , total_mem_kb/1024 );
132 gpuMemBar_->setValue( (total_mem_kb-cur_avail_mem_kb)/1024);
133 setProgressBarStyleSheet(gpuMemBar_);
134 }
135 }
136
137 void MemInfoPlugin::cpuMemoryInfoUpdate() {
138
139 if (mainMemBar_) {
140 unsigned long totalRamMB = Utils::Memory::queryTotalRAM();
141 unsigned long freeRamMB = Utils::Memory::queryFreeRAM();
142
143 mainMemBar_->setRange( 0 , totalRamMB );
144 mainMemBar_->setValue( totalRamMB - freeRamMB );
145 setProgressBarStyleSheet(mainMemBar_);
146 }
147 }
148
149
150 void MemInfoPlugin::setProgressBarStyleSheet(QProgressBar* _bar)
151 {
152 const int val = _bar->value();
153 const int maxVal = _bar->maximum();
154
155 // red starts with 50% mem alloc with 0 and is 1 at 100% mem alloc
156 float redPerc = (val > 0.5f*maxVal) ? 2.f*(val-0.5f*maxVal) : 0.f;
157 const quint32 red = 255.f*redPerc/maxVal;
158 const quint32 green = 255u-red;
159 const quint32 blue = 0u;
160
161 //save color in a 32bit integer
162 const quint32 color = (red<<16)+(green<<8)+blue;
163 _bar->setStyleSheet(QString(" QProgressBar { border: 2px solid grey; border-radius: 2px; text-align: center; } QProgressBar::chunk {background-color: #%1; width: 1px;}").arg(color,6,16,QChar('0')));
164
165 }
166
167
MemInfoPlugin::nvidiaMemoryInfoUpdate
void nvidiaMemoryInfoUpdate()
Update statusbar with NVIDIA memory infos.
Definition: MemInfo.cc:120
MemInfoPlugin::cpuMemoryInfoUpdate
void cpuMemoryInfoUpdate()
Update statusbar with main memory infos.
Definition: MemInfo.cc:137
MemInfoPlugin::setProgressBarStyleSheet
void setProgressBarStyleSheet(QProgressBar *_bar)
Sets the Qt Stylesheet for the progress bars.
Definition: MemInfo.cc:150
MemInfoPlugin::gpuMemBar_
QProgressBar * gpuMemBar_
Status bar for GPU memory.
Definition: MemInfo.hh:94
MemInfoPlugin::initializePlugin
void initializePlugin()
BaseInterface.
Definition: MemInfo.cc:53
ACG::checkExtensionSupported
bool checkExtensionSupported(const std::string &_extension)
Definition: gl.cc:107
MemInfoPlugin::mainMemBar_
QProgressBar * mainMemBar_
Status bar for Main memory.
Definition: MemInfo.hh:97
MemInfoPlugin::updateTimer_
QTimer * updateTimer_
Timer that triggers an update of the bars.
Definition: MemInfo.hh:100