/* wexcursr.c - WindML cursor example program *//* Copyright 2000 Wind River Systems, Inc. All Rights Reserved *//*modification history--------------------01n,22feb02,msr  Backward compatability for input API.01m,29jan02,rbp  Addition of support for Native Unix.01l,05nov01,gav  Fixed misnamed devIds01k,05nov01,gav  Change to new registry01j,05nov01,gav  Change to new registry01i,09oct01,msr  Ported to new UGL_Q_EVENT architecture.01h,19dec00,gav  Entry point identical to filename w/o extension.01g,18dec00,msr  Added color allocation for yellow.01f,27nov00,gav  Add pointing device button test.01e,27oct00,rfm  Added stdio usage01d,26oct00,rfm  Modified entry point01c,25oct00,rfm  Changed comments01b,25oct00,jlb  Fixed exit crash, added instructions, WRS coding stds01a,11sep00,gav written*//*************************************************************** DESCRIPTION** WindML Example - Cursor graphics and Mouse input** This example program demonstrates how a cursor is created,* repositioned on the display, and messages processed from the * pointer.   This program also tests the buttons (right, middle,* left) on the cursor.** To start the example:** -> ld < wexcursr_ugl.o* -> wexcursr <mode>** Cursor program is spawned and the cursor can now be moved. The* <mode> parameter identifies how the program is to be executed.* When it is absent or set to 0, then the cursor movement is* handled by received mouse messages.  When set to a positive * number the cursor movement is updated at the rate specified by* the parameter.* * To shut down the cursor test program, the following is * performed:** -> wexcursrStop***************************************************************//** Include the UGL header file to use UGL functions, etc.* The DIB header has defines specific to the use of DIBs.*/#include <ugl/ugl.h>#include <ugl/uglos.h>#include <ugl/ugldib.h>/** Include header file for the input features of WindML.  WindML's input* API provide the access to a pointing device and keyboard if they are * present and supported by a driver.*/#include <ugl/uglinput.h>/** Messages in WindML allow the application to work independently from the* input processing, while still having access to the input messages.*/#include <ugl/uglMsg.h>/** Include the standard I/O for printf's (of the type of pointing* device detected from the driver).*/#include <stdio.h>/* Defines */#define BLACK   		(0)#define BLUE			(1)#define LIGHTGRAY		(2)#define RED                     (3)#define YELLOW                  (4)#define WHITE                   (5)/* Global variables *//* A forward declaration for this program. */UGL_LOCAL int windMLExampleCursor (int mode);/* Control variable to signal when to stop program */UGL_LOCAL volatile UGL_BOOL stopWex;/* input service */UGL_INPUT_SERVICE_ID inputServiceId;/* Some graphics environment information */UGL_LOCAL int displayHeight, displayWidth;/* * The UGL Graphics Context (GC) is an important concept in UGL.* The GC contains data that various UGL functions can use.* If there were no such thing as a GC, most function calls* would require several more parameters to communicate that* information.*/UGL_GC_ID gc;/** The color table is where we define the colors we want* to have available.  The format is an array of* ARGB values paired with their allocated uglColor.  As* of this writing, we don't need to worry about Alpha* ("A") values unless we are using video.*/UGL_LOCAL struct _colorStruct    {    UGL_ARGB rgbColor;    UGL_COLOR uglColor;    }colorTable[] =    {    { UGL_MAKE_RGB(0, 0, 0), 0},       /* black     */    { UGL_MAKE_RGB(0, 0, 168), 0},     /* blue      */    { UGL_MAKE_RGB(168, 168, 168), 0}, /* lightgrey */    { UGL_MAKE_RGB(255, 0, 0), 0},     /* red */    { UGL_MAKE_RGB(255, 255, 84), 0},     /* yellow */    { UGL_MAKE_RGB(255, 255, 255), 0}  /* white */    };/** The cursor DIB is defined to use an 8-bit indexed palette with two* reserved indices for transparency and inversion.  The format is an array* of ARGB values.  Typically, the alpha would not be implemented.** Each indexed color DIB can have its own CLUT.  There is only one CLUT for* the display screen, though.  With a software cursor, the cursor and the* other displayed data must share the same CLUT.  Hardware cursors, though,* may use their own CLUTs or other color mechanisms independent of the frame* buffers CLUT.*/UGL_LOCAL UGL_ARGB cursorClut[] =    {    UGL_MAKE_RGB(0, 0, 0),            /* black     */    UGL_MAKE_RGB(255, 255, 84)        /* yellow    */    };/** The actual image data for the cursor.  This could be set up* as an array of numbers, or the like, but a more graphical* representation can be had using the #defines.*/UGL_LOCAL UGL_UINT8 cursorData[] =    {#define B 0,#define Y 1,#define T 255,#define I 254,    T T T T T T T T T T T T Y Y Y Y Y Y Y Y T T T T T T T T T T T T    T T T T T T T T T Y Y Y Y Y Y Y Y Y Y Y Y Y Y T T T T T T T T T    T T T T T T T Y Y Y Y T T T Y Y I I I I Y Y Y Y Y T T T T T T T    T T T T T T Y Y Y T T T T T Y Y I I I I I I Y Y Y Y T T T T T T    T T T T T Y Y Y T T T T T T Y Y I I I I I I I I I Y Y T T T T T    T T T T Y Y T T T T T T T B Y Y B I I I I I I I I Y Y Y T T T T    T T T Y Y T T T T T T B B B Y Y B B B I I I I I I I I Y Y T T T    T T Y Y Y T T T T T B B B T Y Y I B B B I I I I I I I Y Y Y T T    T T Y Y T T T T T B B T T T Y Y I I I B B I I I I I I I Y Y T T    T Y Y T T T T T B B T T T T Y Y I I I I B B I I I I I I I Y Y T    T Y Y T T T T B B T T T T T Y Y I I I I I B B I I I I I I Y Y T    T Y Y T T T T B B T T T T T Y Y I I I I I B B I I I I I I I Y Y    Y Y T T T T B B T T T T T T Y Y I I I I I I B B I I I I I I Y Y    Y Y T T T T B B T T T T T T Y Y I I I I I I B B I I I I I I Y Y    Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y    Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y    Y Y I I I I B B I I I I I I Y Y T T T T T T B B T T T T T T Y Y    Y Y I I I I B B I I I I I I Y Y T T T T T T B B T T T T T Y Y Y    Y Y Y I I I I B B I I I I I Y Y T T T T T B B T T T T T T Y Y Y    Y Y Y I I I I B B I I I I I Y Y T T T T T B B T T T T T T Y Y Y    T Y Y I I I I I B B I I I I Y Y T T T T B B T T T T T T T Y Y T    T Y Y I I I I I B B B B I I Y Y T T B B B T T T T T T T Y Y Y T    T Y Y Y I I I I I I B B B B Y Y B B B B T T T T T T T T Y Y Y T    T T Y Y I I I I I I I I B B Y Y B B T T T T T T T T T Y Y Y T T    T T Y Y Y I I I I I I I I I Y Y T T T T T T T T T T T Y Y Y T T    T T T Y Y Y I I I I I I I I Y Y T T T T T T T T T T Y Y Y T T T    T T T T Y Y Y I I I I I I I Y Y T T T T T T T T T Y Y Y T T T T    T T T T T Y Y Y I I I I I I Y Y T T T T T T T T Y Y Y T T T T T    T T T T T T Y Y Y Y I I I I Y Y T T T T T T T Y Y Y T T T T T T    T T T T T T T Y Y Y Y Y I I Y Y Y T T T Y Y Y Y Y T T T T T T T    T T T T T T T T T Y Y Y Y Y Y Y Y Y Y Y Y Y Y T T T T T T T T T    T T T T T T T T T T T T Y Y Y Y Y Y Y Y T T T T T T T T T T T T#undef B#undef Y#undef T#undef I    };/**************************************************************************** wexcursr - start of program** This routine starts the cursor test.** RETURNS: ** ERRNO: N/A** SEE ALSO:  **/#if defined(WINDML_NATIVE) && defined(__unix__)int main (int argc, char *argv [])    {    windMLExampleCursor(0);    return (0);    }#elif defined(WINDML_NATIVE) && defined(_WIN32)int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,                   LPSTR lpCmdLine, int nShowCmd)    {    uglWin32Parameters(hInstance, hPrevInstance, lpCmdLine, nShowCmd);    windMLExampleCursor(0);    return (0);    }#elsevoid wexcursr     (    int mode                  /* 0 when move based on message, otherwise                                 time delay between moves */    )    {    stopWex = 0;    printf("To stop wexcursr, type 'wexcursrStop'\n");    uglOSTaskCreate("tWindMLCurs", (UGL_FPTR)windMLExampleCursor, 110, 		    0, 10240, mode,0,0,0,0);    }#endif/**************************************************************************** wexcursrStop - stop of program** This routine causes the program to terminate.** RETURNS: ** ERRNO: N/A** SEE ALSO:  **/void wexcursrStop (void)    {    stopWex = 1;    }/**************************************************************************** wexPause - move the cursor and check for input** Wait for the signal to stop.  ** Now that we are accepting input from the pointing device, we can use the* buttons (if the pointing device has them) to signal an stop.  Otherwise,* the cursorStop function will work.** RETURNS: ** ERRNO: N/A** SEE ALSO:  **/UGL_LOCAL void wexPause    (    UGL_DEVICE_ID devId,            /* device specifier */    int mode                        /* mode = 0 wait for input, otherwise                                       move based on delay */    )    {    if (mode != 0)        {         /* Set up some coordinates to keep track of the cursor position. */        UGL_POS x = displayWidth / 2,y = displayHeight / 2, a =1,b=1;        /* Continue until we get a signal to stop from cursorStop. */            while (!stopWex)            {            uglCursorMove(devId, x, y);            /* Calculate a new position to which to move the cursor. */            x += a;            y += b;            /*             * Keep the cursor where we can see it.  The 16 offest is             * to account for the width and height from the hot spot.             */                    if ((x < 16) || (x > displayWidth - 16))                a *= -1;            if ((y < 16) || (y > displayHeight - 16))                b *= -1;                    /* Delay to slow the cursor movement. */                    uglOSTaskDelay (mode);            }        }     else        {        /* Someplace to hold a WindML message when we get it. */        UGL_MSG msg;        /*