/***************************************************************** KWin - the KDE window manager This file is part of the KDE project. Copyright (C) 2006 Lubos Lunak 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 #include #include #ifdef HAVE_OPENGL #include #endif #ifdef HAVE_XRENDER #include #include #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