239 lines
7.1 KiB
C++
239 lines
7.1 KiB
C++
/*****************************************************************
|
|
KWin - the KDE window manager
|
|
This file is part of the KDE project.
|
|
|
|
Copyright (C) 2006 Lubos Lunak <l.lunak@kde.org>
|
|
|
|
You can Freely distribute this program under the GNU General Public
|
|
License. See the file "COPYING" for the exact licensing terms.
|
|
******************************************************************/
|
|
|
|
#include "showfps.h"
|
|
|
|
#include <config-X11.h>
|
|
|
|
#include <kconfig.h>
|
|
#include <ksharedconfig.h>
|
|
|
|
#ifdef HAVE_OPENGL
|
|
#include <GL/gl.h>
|
|
#endif
|
|
#ifdef HAVE_XRENDER
|
|
#include <X11/Xlib.h>
|
|
#include <X11/extensions/Xrender.h>
|
|
#endif
|
|
|
|
namespace KWin
|
|
{
|
|
|
|
KWIN_EFFECT( ShowFps, ShowFpsEffect )
|
|
|
|
const int FPS_WIDTH = 10;
|
|
const int MAX_TIME = 100;
|
|
|
|
ShowFpsEffect::ShowFpsEffect()
|
|
: paints_pos( 0 )
|
|
, frames_pos( 0 )
|
|
{
|
|
for( int i = 0;
|
|
i < NUM_PAINTS;
|
|
++i )
|
|
paints[ i ] = 0;
|
|
for( int i = 0;
|
|
i < MAX_FPS;
|
|
++i )
|
|
frames[ i ] = 0;
|
|
KConfigGroup config( KGlobal::config(), "EffectShowFps" );
|
|
alpha = config.readEntry( "Alpha", 0.5 );
|
|
x = config.readEntry( "X", -10000 );
|
|
y = config.readEntry( "Y", 0 );
|
|
if( x == -10000 ) // there's no -0 :(
|
|
x = displayWidth() - NUM_PAINTS - FPS_WIDTH;
|
|
else if ( x < 0 )
|
|
x = displayWidth() - NUM_PAINTS - FPS_WIDTH - x;
|
|
if( y == -10000 )
|
|
y = displayHeight() - MAX_TIME;
|
|
else if ( y < 0 )
|
|
y = displayHeight() - MAX_TIME - y;
|
|
}
|
|
|
|
void ShowFpsEffect::prePaintScreen( int* mask, QRegion* region, int time )
|
|
{
|
|
if( time == 0 ) {
|
|
// TODO optimized away
|
|
}
|
|
t.start();
|
|
frames[ frames_pos ] = t.minute() * 60000 + t.second() * 1000 + t.msec();
|
|
if( ++frames_pos == MAX_FPS )
|
|
frames_pos = 0;
|
|
effects->prePaintScreen( mask, region, time );
|
|
*region += QRect( x, y, FPS_WIDTH + NUM_PAINTS, MAX_TIME );
|
|
}
|
|
|
|
void ShowFpsEffect::paintScreen( int mask, QRegion region, ScreenPaintData& data )
|
|
{
|
|
effects->paintScreen( mask, region, data );
|
|
int fps = 0;
|
|
for( int i = 0;
|
|
i < MAX_FPS;
|
|
++i )
|
|
if( abs( t.minute() * 60000 + t.second() * 1000 + t.msec() - frames[ i ] ) < 1000 )
|
|
++fps; // count all frames in the last second
|
|
if( fps > MAX_TIME )
|
|
fps = MAX_TIME; // keep it the same height
|
|
#ifdef HAVE_OPENGL
|
|
if( effects->compositingType() == OpenGLCompositing)
|
|
{
|
|
paintGL( fps );
|
|
glFinish(); // make sure all rendering is done
|
|
}
|
|
#endif
|
|
#ifdef HAVE_XRENDER
|
|
if( effects->compositingType() == XRenderCompositing)
|
|
{
|
|
paintXrender( fps );
|
|
XSync( display(), False ); // make sure all rendering is done
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void ShowFpsEffect::paintGL( int fps )
|
|
{
|
|
#ifdef HAVE_OPENGL
|
|
int x = this->x;
|
|
int y = this->y;
|
|
glPushAttrib( GL_CURRENT_BIT | GL_ENABLE_BIT );
|
|
glEnable( GL_BLEND );
|
|
glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
|
|
// TODO painting first the background white and then the contents
|
|
// means that the contents also blend with the background, I guess
|
|
glColor4f( 1, 1, 1, alpha ); // white
|
|
glBegin( GL_QUADS );
|
|
glVertex2i( x, y );
|
|
glVertex2i( x + NUM_PAINTS + FPS_WIDTH, y );
|
|
glVertex2i( x + NUM_PAINTS + FPS_WIDTH, y + MAX_TIME );
|
|
glVertex2i( x, y + MAX_TIME );
|
|
glEnd();
|
|
y += MAX_TIME; // paint up from the bottom
|
|
glBegin( GL_QUADS );
|
|
glColor4f( 0, 0, 1, alpha ); // blue
|
|
glVertex2i( x, y );
|
|
glVertex2i( x + FPS_WIDTH, y );
|
|
glVertex2i( x + FPS_WIDTH, y - fps );
|
|
glVertex2i( x, y - fps );
|
|
glEnd();
|
|
glColor4f( 0, 0, 0, alpha ); // black
|
|
glBegin( GL_LINES );
|
|
for( int i = 10;
|
|
i < MAX_TIME;
|
|
i += 10 )
|
|
{
|
|
glVertex2i( x, y - i );
|
|
glVertex2i( x + FPS_WIDTH, y - i );
|
|
}
|
|
glEnd();
|
|
x += FPS_WIDTH;
|
|
glBegin( GL_LINES );
|
|
for( int i = 0;
|
|
i < NUM_PAINTS;
|
|
++i )
|
|
{
|
|
int value = paints[ ( i + paints_pos ) % NUM_PAINTS ];
|
|
if( value > MAX_TIME )
|
|
value = MAX_TIME; // limit
|
|
if( value <= 10 )
|
|
glColor4f( 0, 1, 0, alpha ); // green
|
|
else if( value <= 20 )
|
|
glColor4f( 1, 1, 0, alpha ); // yellow
|
|
else if( value <= 50 )
|
|
glColor4f( 1, 0, 0, alpha ); // red
|
|
else
|
|
glColor4f( 0, 0, 0, alpha ); // black
|
|
glVertex2i( x + NUM_PAINTS - i, y );
|
|
glVertex2i( x + NUM_PAINTS - i, y - value );
|
|
}
|
|
glEnd();
|
|
glPopAttrib();
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
Differences between OpenGL and XRender:
|
|
- differently specified rectangles (X: width/height, O: x2,y2)
|
|
- XRender uses pre-multiplied alpha
|
|
*/
|
|
void ShowFpsEffect::paintXrender( int fps )
|
|
{
|
|
#ifdef HAVE_XRENDER
|
|
Pixmap pixmap = XCreatePixmap( display(), rootWindow(), NUM_PAINTS + FPS_WIDTH, MAX_TIME, 32 );
|
|
XRenderPictFormat* format = XRenderFindStandardFormat( display(), PictStandardARGB32 );
|
|
Picture p = XRenderCreatePicture( display(), pixmap, format, 0, NULL );
|
|
XFreePixmap( display(), pixmap );
|
|
XRenderColor col;
|
|
col.alpha = int( alpha * 0xffff );
|
|
col.red = int( alpha * 0xffff ); // white
|
|
col.green = int( alpha * 0xffff );
|
|
col.blue= int( alpha * 0xffff );
|
|
XRenderFillRectangle( display(), PictOpSrc, p, &col, 0, 0, NUM_PAINTS + FPS_WIDTH, MAX_TIME );
|
|
col.red = 0; // blue
|
|
col.green = 0;
|
|
col.blue = int( alpha * 0xffff );
|
|
XRenderFillRectangle( display(), PictOpSrc, p, &col, 0, MAX_TIME - fps, FPS_WIDTH, fps );
|
|
col.red = 0; // black
|
|
col.green = 0;
|
|
col.blue = 0;
|
|
for( int i = 10;
|
|
i < MAX_TIME;
|
|
i += 10 )
|
|
{
|
|
XRenderFillRectangle( display(), PictOpSrc, p, &col, 0, MAX_TIME - i, FPS_WIDTH, 1 );
|
|
}
|
|
for( int i = 0;
|
|
i < NUM_PAINTS;
|
|
++i )
|
|
{
|
|
int value = paints[ ( i + paints_pos ) % NUM_PAINTS ];
|
|
if( value > MAX_TIME )
|
|
value = MAX_TIME; // limit
|
|
if( value <= 10 )
|
|
{ // green
|
|
col.red = 0;
|
|
col.green = int( alpha * 0xffff );
|
|
col.blue = 0;
|
|
}
|
|
else if( value <= 20 )
|
|
{ // yellow
|
|
col.red = int( alpha * 0xffff );
|
|
col.green = int( alpha * 0xffff );
|
|
col.blue = 0;
|
|
}
|
|
else if( value <= 50 )
|
|
{ // red
|
|
col.red = int( alpha * 0xffff );
|
|
col.green = 0;
|
|
col.blue = 0;
|
|
}
|
|
else
|
|
{ // black
|
|
col.red = 0;
|
|
col.green = 0;
|
|
col.blue = 0;
|
|
}
|
|
XRenderFillRectangle( display(), PictOpSrc, p, &col, FPS_WIDTH + NUM_PAINTS - i, MAX_TIME - value, 1, value );
|
|
}
|
|
XRenderComposite( display(), alpha != 1.0 ? PictOpOver : PictOpSrc, p, None,
|
|
effects->xrenderBufferPicture(), 0, 0, 0, 0, x, y, FPS_WIDTH + NUM_PAINTS, MAX_TIME );
|
|
XRenderFreePicture( display(), p );
|
|
#endif
|
|
}
|
|
|
|
void ShowFpsEffect::postPaintScreen()
|
|
{
|
|
effects->postPaintScreen();
|
|
paints[ paints_pos ] = t.elapsed();
|
|
if( ++paints_pos == NUM_PAINTS )
|
|
paints_pos = 0;
|
|
effects->addRepaint( x, y, FPS_WIDTH + NUM_PAINTS, MAX_TIME );
|
|
}
|
|
|
|
} // namespace
|