--- /dev/null
+/*
+ (c) Copyright 2000-2002 convergence integrated media GmbH.
+ All rights reserved.
+
+ Written by Denis Oliver Kropp <dok@directfb.org>,
+ Andreas Hundt <andi@fischlustig.de> and
+ Sven Neumann <neo@directfb.org>.
+
+ This file is subject to the terms and conditions of the MIT License:
+
+ Permission is hereby granted, free of charge, to any person
+ obtaining a copy of this software and associated documentation
+ files (the "Software"), to deal in the Software without restriction,
+ including without limitation the rights to use, copy, modify, merge,
+ publish, distribute, sublicense, and/or sell copies of the Software,
+ and to permit persons to whom the Software is furnished to do so,
+ subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#include <directfb.h>
+
+#include <time.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+/******************************************************************************/
+
+static IDirectFB *dfb = NULL;
+static IDirectFBDisplayLayer *layer = NULL;
+static IDirectFBWindow *window = NULL;
+static IDirectFBSurface *surface = NULL;
+static IDirectFBEventBuffer *events = NULL;
+
+/******************************************************************************/
+
+static void init_application( int *argc, char **argv[] );
+static void exit_application( int status );
+
+static void update();
+
+/******************************************************************************/
+
+int
+main( int argc, char *argv[] )
+{
+ /* Initialize application. */
+ init_application( &argc, &argv );
+
+ surface->Clear( surface, 0xff, 0xff, 0xff, 0x30 );
+
+ window->SetOpacity( window, 0xff );
+
+ /* Main loop. */
+ while (1) {
+ DFBWindowEvent event;
+
+ update();
+
+ events->WaitForEventWithTimeout( events, 0, 100 );
+
+ /* Check for new events. */
+ while (events->GetEvent( events, DFB_EVENT(&event) ) == DFB_OK) {
+ switch (event.type) {
+ default:
+ break;
+ }
+ }
+ }
+
+ /* Shouldn't reach this. */
+ return 0;
+}
+
+/******************************************************************************/
+
+static void
+init_application( int *argc, char **argv[] )
+{
+ DFBResult ret;
+ DFBWindowDescription desc;
+ DFBDisplayLayerConfig config;
+
+ /* Initialize DirectFB including command line parsing. */
+ ret = DirectFBInit( argc, argv );
+ if (ret) {
+ DirectFBError( "DirectFBInit() failed", ret );
+ exit_application( 1 );
+ }
+
+ /* Create the super interface. */
+ ret = DirectFBCreate( &dfb );
+ if (ret) {
+ DirectFBError( "DirectFBCreate() failed", ret );
+ exit_application( 2 );
+ }
+
+ /* Get the primary display layer. */
+ ret = dfb->GetDisplayLayer( dfb, DLID_PRIMARY, &layer );
+ if (ret) {
+ DirectFBError( "IDirectFB::GetDisplayLayer() failed", ret );
+ exit_application( 3 );
+ }
+
+ /* Get the screen size etc. */
+ layer->GetConfiguration( layer, &config );
+
+ /* Fill the window description. */
+ desc.flags = DWDESC_POSX | DWDESC_POSY |
+ DWDESC_WIDTH | DWDESC_HEIGHT | DWDESC_CAPS;
+ desc.posx = config.width - 224;
+ desc.posy = 8;
+ desc.width = 64;
+ desc.height = 64;
+ desc.caps = DWCAPS_ALPHACHANNEL | DWCAPS_NODECORATION;
+
+ /* Create the window. */
+ ret = layer->CreateWindow( layer, &desc, &window );
+ if (ret) {
+ DirectFBError( "IDirectFBDisplayLayer::CreateWindow() failed", ret );
+ exit_application( 4 );
+ }
+
+ /* Get the window's surface. */
+ ret = window->GetSurface( window, &surface );
+ if (ret) {
+ DirectFBError( "IDirectFBWindow::GetSurface() failed", ret );
+ exit_application( 5 );
+ }
+
+ /* Create an event buffer for all keyboard events. */
+ ret = window->CreateEventBuffer( window, &events );
+ if (ret) {
+ DirectFBError( "IDirectFBWindow::CreateEventBuffer() failed", ret );
+ exit_application( 6 );
+ }
+
+ /* Add ghost option (behave like an overlay). */
+ window->SetOptions( window, DWOP_ALPHACHANNEL | DWOP_GHOST );
+
+ /* Move window to upper stacking class. */
+ window->SetStackingClass( window, DWSC_UPPER );
+
+ /* Make it the top most window. */
+ window->RaiseToTop( window );
+}
+
+static void
+exit_application( int status )
+{
+ /* Release the event buffer. */
+ if (events)
+ events->Release( events );
+
+ /* Release the window's surface. */
+ if (surface)
+ surface->Release( surface );
+
+ /* Release the window. */
+ if (window)
+ window->Release( window );
+
+ /* Release the layer. */
+ if (layer)
+ layer->Release( layer );
+
+ /* Release the super interface. */
+ if (dfb)
+ dfb->Release( dfb );
+
+ /* Terminate application. */
+ exit( status );
+}
+
+/******************************************************************************/
+
+#define SET_IF_DESIRED(x,y) do{ if(x) *(x) = (y); }while(0)
+#define JT unsigned long
+static void four_cpu_numbers(int *uret, int *nret, int *sret, int *iret)
+{
+ int tmp_u, tmp_n, tmp_s, tmp_i;
+ static JT old_u, old_n, old_s, old_i, old_wa, old_hi, old_si;
+ JT new_u, new_n, new_s, new_i, new_wa = 0, new_hi = 0, new_si = 0;
+ JT ticks_past; /* avoid div-by-0 by not calling too often :-( */
+ char dummy[16];
+ FILE *stat;
+
+ stat = fopen ("/proc/stat", "r");
+ if (!stat)
+ return;
+
+ if (fscanf (stat, "%s %lu %lu %lu %lu %lu %lu %lu", dummy,
+ &new_u, &new_n, &new_s, &new_i, &new_wa, &new_hi, &new_si) < 5)
+ {
+ fclose (stat);
+ return;
+ }
+
+ fclose (stat);
+
+ ticks_past = ((new_u + new_n + new_s + new_i + new_wa + new_hi + new_si) -
+ (old_u + old_n + old_s + old_i + old_wa + old_hi + old_si));
+ if (ticks_past) {
+ tmp_u = ((new_u - old_u) << 16) / ticks_past;
+ tmp_n = ((new_n - old_n) << 16) / ticks_past;
+ tmp_s = ((new_s - old_s) << 16) / ticks_past;
+ tmp_i = ((new_i - old_i) << 16) / ticks_past;
+ }
+ else {
+ tmp_u = 0;
+ tmp_n = 0;
+ tmp_s = 0;
+ tmp_i = 0;
+ }
+
+ SET_IF_DESIRED(uret, tmp_u);
+ SET_IF_DESIRED(nret, tmp_n);
+ SET_IF_DESIRED(sret, tmp_s);
+ SET_IF_DESIRED(iret, tmp_i);
+
+ old_u = new_u;
+ old_n = new_n;
+ old_s = new_s;
+ old_i = new_i;
+ old_wa = new_wa;
+ old_hi = new_hi;
+ old_si = new_si;
+}
+#undef JT
+
+static int
+get_load()
+{
+ static int old_load = 0;
+
+ int u = 0, n = 0, s = 0, i, load;
+
+ four_cpu_numbers( &u, &n, &s, &i );
+
+ load = u + n + s;
+
+ old_load = (load + load + load + old_load) >> 2;
+
+ return old_load >> 10;
+}
+
+static void
+update()
+{
+ int load = get_load();
+
+ surface->SetColor( surface, 0xff, 0xff, 0xff, 0x30 );
+ surface->FillRectangle( surface, 63, 0, 1, 64 - load );
+
+ surface->SetColor( surface, 0x00, 0x50, 0xd0, 0xcc );
+ surface->FillRectangle( surface, 63, 64 - load, 1, load );
+
+ surface->Blit( surface, surface, NULL, -1, 0 );
+
+ surface->SetColor( surface, 0x00, 0x00, 0x00, 0x60 );
+ surface->DrawRectangle( surface, 0, 0, 64, 64 );
+
+
+ surface->Flip( surface, NULL, 0 );
+}
+
projects / xentesttools / bootstrap.git / commitdiff