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[Armadeus-commitlog] SF.net SVN: armadeus: [799] trunk/target/demos
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From: <ar...@us...> - 2008-04-27 20:27:34
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Revision: 799
http://armadeus.svn.sourceforge.net/armadeus/?rev=799&view=rev
Author: artemys
Date: 2008-04-27 13:27:39 -0700 (Sun, 27 Apr 2008)
Log Message:
-----------
[DEMOS] First version of SDL+Tslib backlight controller
Added Paths:
-----------
trunk/target/demos/backlight_control/
trunk/target/demos/backlight_control/Makefile
trunk/target/demos/backlight_control/README
trunk/target/demos/backlight_control/backlight.c
trunk/target/demos/backlight_control/backlight_sysctl.c
trunk/target/demos/backlight_control/backlight_sysctl.h
trunk/target/demos/backlight_control/cursor.bmp
trunk/target/demos/backlight_control/empty.bmp
trunk/target/demos/backlight_control/empty_end.bmp
trunk/target/demos/backlight_control/full.bmp
trunk/target/demos/backlight_control/full_end.bmp
Added: trunk/target/demos/backlight_control/Makefile
===================================================================
--- trunk/target/demos/backlight_control/Makefile (rev 0)
+++ trunk/target/demos/backlight_control/Makefile 2008-04-27 20:27:39 UTC (rev 799)
@@ -0,0 +1,48 @@
+
+ifeq ($(TARGET),)
+ BUILDROOT_DIR:=../../../buildroot/
+ BUILD_DIR_EXT:=$(shell ls $(BUILDROOT_DIR) | grep -e "^build_arm*")
+ BUILD_DIR:=$(BUILDROOT_DIR)/$(BUILD_DIR_EXT)
+
+ SDL_DIR:=$(BUILD_DIR)/SDL-1.2.11/
+ STAGING_DIR:=$(BUILD_DIR)/staging_dir/
+ ROOT_DIR:=$(BUILDROOT_DIR)/project_$(BUILD_DIR_EXT)/armadeus/root/
+ INSTALL_DIR:=$(ROOT_DIR)/usr/bin/
+
+ CC:=$(STAGING_DIR)/bin/arm-linux-gcc
+ DEFINES="TARGET"
+ CFLAGS:=$(shell STAGING_DIR=$(STAGING_DIR) sh $(SDL_DIR)/sdl-config --cflags)
+ LIBS:=$(shell STAGING_DIR=$(STAGING_DIR) sh $(SDL_DIR)/sdl-config --libs)
+else
+ INSTALL_DIR="./install"
+ CFLAGS=`/usr/bin/sdl-config --cflags`
+ LIBS=`/usr/bin/sdl-config --libs`
+ CC=gcc
+ DEFINES="HOST"
+endif
+
+CFLAGS+="-g"
+
+default: backlight
+
+all: backlight
+
+
+backlight.o: backlight.c
+ $(CC) $(CFLAGS) -c -o $@ $^
+
+backlight_sysctl.o: backlight_sysctl.c
+ $(CC) $(CFLAGS) -D$(DEFINES) -c -o $@ $^
+
+backlight: backlight.o backlight_sysctl.o
+ $(CC) $(LIBS) -o $@ $^
+
+install: backlight cursor.bmp empty.bmp empty_end.bmp full.bmp full_end.bmp
+ mkdir -p $(INSTALL_DIR)
+ cp $^ $(INSTALL_DIR)
+
+clean:
+ rm -rf backlight
+ rm -rf *.o
+ rm -rf active backlight.dat
+
Added: trunk/target/demos/backlight_control/README
===================================================================
--- trunk/target/demos/backlight_control/README (rev 0)
+++ trunk/target/demos/backlight_control/README 2008-04-27 20:27:39 UTC (rev 799)
@@ -0,0 +1,6 @@
+
+* ARM compiling:
+ $ make clean; make install
+* x86 compiling (SDL devt package should be installed on your system)
+ $ make TARGET=x86 clean; make TARGET=x86
+
Added: trunk/target/demos/backlight_control/backlight.c
===================================================================
--- trunk/target/demos/backlight_control/backlight.c (rev 0)
+++ trunk/target/demos/backlight_control/backlight.c 2008-04-27 20:27:39 UTC (rev 799)
@@ -0,0 +1,315 @@
+/*
+ *
+ * Small tool to demonstrate how to use (or not use ;-) ) Tslib + SDL library
+ * for the Armadeus project. www.armadeus.og
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h> // for sleep()
+
+#include "SDL.h"
+// To
+#include "backlight_sysctl.h"
+
+
+#define SCREEN_WIDTH 480
+#define SCREEN_HEIGHT 270
+#define BAR_MIN_XPOSITION (0+(SCREEN_WIDTH>>4))
+#define BAR_MAX_XPOSITION (SCREEN_WIDTH-(SCREEN_WIDTH>>4))
+#define BAR_YPOSITION (SCREEN_HEIGHT/2)
+#define BAR_WIDTH (BAR_MAX_XPOSITION-BAR_MIN_XPOSITION)
+
+#ifdef DEBUG
+#define debug( args...) printf( ## args )
+#else
+#define debug( args...) do {;} while(0);
+#endif
+
+#define bool unsigned int
+#define false 0
+#define true 1
+
+SDL_Surface *cursor;
+SDL_Surface *full_end;
+SDL_Surface *full;
+SDL_Surface *empty;
+SDL_Surface *empty_end;
+SDL_Surface *screen;
+
+const int NB_FRAMES_PER_SECOND = 50;
+
+
+//---- Private functions ----
+
+// Load all images needed by the tool (from .bmp files)
+static int loadImages()
+{
+ int result = 0;
+
+ full_end = SDL_LoadBMP("./full_end.bmp");
+ full = SDL_LoadBMP("./full.bmp");
+ cursor = SDL_LoadBMP("./cursor.bmp");
+ empty = SDL_LoadBMP("./empty.bmp");
+ empty_end = SDL_LoadBMP("./empty_end.bmp");
+
+ // Check if we got all images
+ if( full_end == NULL || full == NULL || cursor == NULL || empty == NULL || empty_end == NULL )
+ {
+ printf("Unable to load image files !\n");
+ result = -1;
+ } else {
+ //SDL_SetAlpha( image, 0/*SDL_SRCALPHA*/, SDL_ALPHA_TRANSPARENT );
+ if( SDL_SetColorKey( cursor, SDL_SRCCOLORKEY, SDL_MapRGB(cursor->format, 0xFF, 0xFF, 0xFF) ) )
+ {
+ printf("Error while setting transparent color\n");
+ }
+ }
+
+ return(result);
+}
+
+//
+static void freeRessources()
+{
+ SDL_FreeSurface( screen );
+ SDL_FreeSurface( full_end );
+ SDL_FreeSurface( full );
+ SDL_FreeSurface( cursor );
+ SDL_FreeSurface( empty );
+ SDL_FreeSurface( empty_end );
+}
+
+//
+void drawImage(SDL_Surface *img, int x, int y)
+{
+ SDL_Rect dest;
+ dest.x = x;
+ dest.y = y;
+ SDL_BlitSurface(img, NULL, screen, &dest);
+}
+
+//
+void drawBackground()
+{
+ SDL_Rect dest;
+ dest.x = 0; dest.y = 0; dest.w = SCREEN_WIDTH; dest.h = SCREEN_HEIGHT;
+ // Fill background
+ SDL_FillRect( screen, &dest, SDL_MapRGB( screen->format, 0xFF, 0xFF, 0xFF ) );
+}
+
+//
+static int paddXPos( int xpos )
+{
+ int x=0;
+
+ if( xpos <= BAR_MIN_XPOSITION ) {
+ x = BAR_MIN_XPOSITION;
+ } else if ( xpos >= BAR_MAX_XPOSITION ) {
+ x = BAR_MAX_XPOSITION;
+ } else {
+ x = xpos;
+ }
+
+ return( x );
+}
+
+//
+static void drawBar( int xpos )
+{
+ int i=BAR_MIN_XPOSITION;
+
+ if( xpos <= BAR_MIN_XPOSITION ) {
+ xpos = BAR_MIN_XPOSITION;
+ } else if ( xpos >= BAR_MAX_XPOSITION ) {
+ xpos = BAR_MAX_XPOSITION;
+ }
+
+ drawImage( full_end, i, BAR_YPOSITION );
+ i+=5;
+
+ for( ; i<=xpos; i+=5 ) {
+ drawImage( full, i, BAR_YPOSITION );
+ }
+
+ for( ; i<=BAR_MAX_XPOSITION; i+=5 ) {
+ drawImage( empty, i, BAR_YPOSITION );
+ }
+
+ drawImage( empty_end, i, BAR_YPOSITION );
+}
+
+//
+static unsigned char calculateBacklight( int xpos )
+{
+ int x = 0;
+ unsigned char backlight = 0; // 0-100 %
+
+ x = paddXPos( xpos );
+ backlight = (unsigned char) (((x - BAR_MIN_XPOSITION)*100) / BAR_WIDTH);
+
+ return( backlight );
+}
+
+//
+static void drawCursor( int xpos )
+{
+ int x=0;
+
+ x = paddXPos( xpos );
+ drawImage( cursor, x, BAR_YPOSITION-5);
+}
+
+//
+void updateCursor( int xpos )
+{
+ drawBackground();
+ drawBar( xpos );
+ drawCursor(xpos );
+ SDL_Flip( screen );
+}
+
+
+//---- Main ----
+
+#define MAX_BAR_SPEED 10
+int main(int argc, char *argv[])
+{
+ Uint8* keys;
+ int nbFrames = 0;
+ int cursorPos = 0;
+ //Timer fps, update;
+ //Sint8 xspeed = 1, yspeed =1;
+
+ // Initialize SDL
+ if( SDL_Init( SDL_INIT_VIDEO | SDL_INIT_TIMER /*| SDL_INIT_EVENTTHREAD |SDL_INIT_NOPARACHUTE*/) < 0 )
+ {
+ printf("Unable to init SDL: %s\n", SDL_GetError());
+ exit(1);
+ }
+ if (SDL_InitSubSystem(SDL_INIT_TIMER) == -1)
+ {
+ fprintf(stderr, "SDL timer failed to initialize! Error: %s\n", SDL_GetError());
+ exit(1);
+ }
+ else
+ {
+ fprintf(stdout, "SDL timer initialized properly!\n");
+ }
+ // Ask SDL to cleanup when exiting
+ atexit(SDL_Quit);
+
+ // Get a screen to display our game
+ screen=SDL_SetVideoMode( SCREEN_WIDTH, SCREEN_HEIGHT, 16, 0/*SDL_HWPALETTE*//*SDL_HWSURFACE|| SDL_DOUBLEBUF*/ );
+ if( screen == NULL )
+ {
+ printf("Unable to set %dx%dvideo mode: %s\n", SCREEN_WIDTH, SCREEN_HEIGHT, SDL_GetError());
+ exit(1);
+ }
+
+ // Load our graphics
+ if( loadImages() )
+ {
+ return(1);
+ }
+ drawBackground();
+
+ // Initialize Backlight control
+ if( initBacklightControl() )
+ {
+ printf("Unable to find Backlight control on your system -> won't be activated\n");
+ }
+ updateCursor( (getBacklight() * BAR_WIDTH / 100) + BAR_MIN_XPOSITION );
+ int done=0, move=0;
+
+ // Hide mouse
+ SDL_ShowCursor(0);
+
+ /* // Start timer for Frame Rate calculation
+ update.start();
+ fps.start();*/
+
+ // Main loop
+ while(done == 0)
+ {
+ SDL_Event event;
+ // Wait for SDL events
+ while ( SDL_PollEvent(&event) )
+ {
+ cursorPos = 0;
+ switch( event.type )
+ {
+ case SDL_QUIT: { done = 1; break; }
+ case SDL_KEYDOWN:
+ {
+ if ( event.key.keysym.sym == SDLK_ESCAPE ) { done = 1; }
+ break;
+ }
+ case SDL_MOUSEBUTTONDOWN:
+ {
+ move = 1;
+ cursorPos = event.motion.x;
+ break;
+ }
+
+ case SDL_MOUSEBUTTONUP: { move = 0; break; }
+
+ case SDL_MOUSEMOTION:
+ {
+ if( move == 1 ) {
+ debug("Current mouse position is: (%d, %d)\n", event.motion.x, event.motion.y);
+ cursorPos = event.motion.x;
+ }
+ break;
+ }
+ }
+ }
+
+ if( cursorPos != 0 && move == 1 ) {
+
+ //
+ setBacklight( calculateBacklight( cursorPos ) );
+
+ // Update screen
+ updateCursor( cursorPos );
+ nbFrames++;
+ }
+
+ // Calculate and stabilize Frame Rate
+/* if( update.getTicks() > 1000 )
+ {
+ printf("FPS: %f\n", (float)nbFrames );
+ update.start();
+ nbFrames = 0;
+ }
+ while( fps.getTicks() < (1000 / NB_FRAMES_PER_SECOND) )
+ {
+ ;
+ }
+ fps.start();
+*/
+ SDL_Delay(50);
+ }
+
+ // Cleanup what we used
+ releaseBacklightControl();
+ freeRessources();
+ SDL_QuitSubSystem( SDL_INIT_TIMER );
+ SDL_Quit();
+
+ return 0;
+}
Added: trunk/target/demos/backlight_control/backlight_sysctl.c
===================================================================
--- trunk/target/demos/backlight_control/backlight_sysctl.c (rev 0)
+++ trunk/target/demos/backlight_control/backlight_sysctl.c 2008-04-27 20:27:39 UTC (rev 799)
@@ -0,0 +1,89 @@
+#include "SDL.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "backlight_sysctl.h"
+
+int playing, initialized = 0;
+FILE* fd;
+FILE* fda;
+unsigned char currentBacklight = 0;
+
+#ifdef TARGET
+#define FREQ_SYS_FILE "/sys/class/pwm/pwm0/frequency"
+#define ACTIVE_SYS_FILE "/sys/class/pwm/pwm0/active"
+#else
+#define FREQ_SYS_FILE "./backlight.dat"
+#define ACTIVE_SYS_FILE "./active"
+#endif // TARGET
+
+SDL_TimerID myTimerID;
+
+/*
+ * Initialize the system
+ *
+ */
+int initBacklightControl()
+{
+ int result = -1;
+
+ if( !initialized )
+ {
+ playing = 0;
+ fd = fopen( FREQ_SYS_FILE, "w+" );
+ fda = fopen( ACTIVE_SYS_FILE, "w" );
+
+ if( (fd != NULL) && (fda != NULL) )
+ {
+ result = 0;
+ initialized = 1;
+#ifdef TARGET
+
+#else
+ currentBacklight = 50; // %
+#endif // TARGET
+ } else
+ printf("Buzzer: can't open /sys interface\n");
+ }
+ return( result );
+}
+
+/*
+ * Free ressources allocated by the "library"
+ *
+ */
+void releaseBacklightControl()
+{
+ if( initialized )
+ {
+ fclose( fd );
+ fclose( fda );
+ initialized = 0;
+ }
+}
+
+/*
+ * 0-100 %
+ */
+void setBacklight( unsigned char aValue )
+{
+ if( initialized )
+ {
+ char value[4]; int nchar;
+
+ // Program PWM with given frequency
+ nchar = sprintf( value, "%d", aValue);
+ fwrite( value, 1, nchar, fd );
+ fflush( fd );
+ currentBacklight = aValue;
+ }
+}
+
+/*
+ * 0-100 %
+ */
+unsigned char getBacklight( void )
+{
+ return( currentBacklight );
+}
+
Added: trunk/target/demos/backlight_control/backlight_sysctl.h
===================================================================
--- trunk/target/demos/backlight_control/backlight_sysctl.h (rev 0)
+++ trunk/target/demos/backlight_control/backlight_sysctl.h 2008-04-27 20:27:39 UTC (rev 799)
@@ -0,0 +1,15 @@
+#ifndef H_BACKLIGHT_CONTROL_INCLUDE
+#define H_BACKLIGHT_CONTROL_INCLUDE
+
+
+// Initialize the Backlight control library
+int initBacklightControl( void );
+
+// Play a sound on buzzer at given frequency (Hz) and during given time (ms)
+void setBacklight( unsigned char aValue );
+
+// Free ressources allocated by the Backlight control library
+void releaseBacklightControl( void );
+
+
+#endif // H_BACKLIGHT_CONTROL_INCLUDE
Added: trunk/target/demos/backlight_control/cursor.bmp
===================================================================
(Binary files differ)
Property changes on: trunk/target/demos/backlight_control/cursor.bmp
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Name: svn:mime-type
+ application/octet-stream
Added: trunk/target/demos/backlight_control/empty.bmp
===================================================================
(Binary files differ)
Property changes on: trunk/target/demos/backlight_control/empty.bmp
___________________________________________________________________
Name: svn:mime-type
+ application/octet-stream
Added: trunk/target/demos/backlight_control/empty_end.bmp
===================================================================
(Binary files differ)
Property changes on: trunk/target/demos/backlight_control/empty_end.bmp
___________________________________________________________________
Name: svn:mime-type
+ application/octet-stream
Added: trunk/target/demos/backlight_control/full.bmp
===================================================================
(Binary files differ)
Property changes on: trunk/target/demos/backlight_control/full.bmp
___________________________________________________________________
Name: svn:mime-type
+ application/octet-stream
Added: trunk/target/demos/backlight_control/full_end.bmp
===================================================================
(Binary files differ)
Property changes on: trunk/target/demos/backlight_control/full_end.bmp
___________________________________________________________________
Name: svn:mime-type
+ application/octet-stream
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