source: svn/newcon3bcm2_21bu/nexus/app/nanotv/bapp_util.c @ 22

/***************************************************************************
 *     Copyright (c) 2003-2006, Broadcom Corporation
 *     All Rights Reserved
 *     Confidential Property of Broadcom Corporation
 *
 *  THIS SOFTWARE MAY ONLY BE USED SUBJECT TO AN EXECUTED SOFTWARE LICENSE
 *  AGREEMENT  BETWEEN THE USER AND BROADCOM.  YOU HAVE NO RIGHT TO USE OR
 *  EXPLOIT THIS MATERIAL EXCEPT SUBJECT TO THE TERMS OF SUCH AN AGREEMENT.
 *
 * $brcm_Workfile:  $
 * $brcm_Revision:  $
 * $brcm_Date: $
 *
 * Module Description:
 *
 * Revision History:
 *
 * $brcm_Log:  $
 *
 ***************************************************************************/
#include "bapp_util.h"
#include "bgfx.h"
#include "bstd.h"
#define BAPP_UTIL_DBGMSG(x) printf x
#ifdef OLD_TEXTBOX
static unsigned long s_test_char = 0x00000057UL;
#endif


static unsigned int rand_table_idx = 0;
static const unsigned short rand_table[] = 
{
    840,394,783,798,911,197,335,768,277,553,
    477,628,364,513,952,916,635,717,141,606,
    16,242,137,804,156,400,129,108,998,218,
    512,839,612,296,637,524,493,972,292,771,
    526,769,400,891,283,352,807,919,69,949,
    525,86,192,663,890,348,64,20,457,63,
    238,970,902,850,266,539,375,760,512,667,
    531,39,437,931,930,720,284,738,639,354,
    687,165,440,880,829,330,228,893,350,686,
    956,588,657,858,439,923,398,814,684,910,
    482,215,950,920,147,881,641,431,619,281,
    786,307,447,226,187,276,556,416,169,906,
    103,126,495,760,984,935,684,383,749,368,
    294,232,584,244,152,732,125,793,164,745,
    74,950,52,521,176,240,797,732,656,967,
    639,759,93,134,520,78,69,204,461,819,
    573,755,51,157,999,204,889,125,997,54,
    870,72,4,923,593,180,163,391,913,819,
    359,552,579,452,687,99,530,757,304,992,
    576,877,747,628,35,747,833,925,873,831,
    979,743,903,983,666,497,163,830,888,76,
    649,248,629,229,700,316,328,231,74,633,
    223,651,510,971,280,546,719,113,471,592,
    944,450,336,847,434,3,344,598,833,233,
    675,482,481,304,712,182,621,40,413,695,
    673,637,347,184,609,627,730,328,740,202,
    920,684,653,257,532,87,260,877,686,93,
    111,361,576,593,666,288,775,288,329,189,
    984,3,827,331,188,436,958,918,764,699,
    121,685,383,774,943,916,861,203,793,548,
    297,904,909,873,498,576,162,273,864,492,
    463,848,495,291,180,684,727,139,603,492,
    838,724,178,221,498,121,138,360,324,931,
    908,622,836,818,496,334,394,658,608,258,
    151,72,107,647,363,288,331,91,427,934,
    583,265,658,761,487,157,883,625,517,207,
    557,426,829,394,244,326,729,638,984,338,
    897,136,410,5,783,774,293,114,865,721,
    49,449,986,707,210,473,865,93,99,382,
    301,657,809,131,51,53,457,780,692,442,
    119,589,578,529,595,361,304,888,476,169,
    609,525,618,596,233,829,70,98,923,169,
    481,225,826,290,357,878,344,814,659,36,
    257,778,625,836,308,221,198,612,109,674,
    782,719,200,401,315,434,230,385,532,154,
    555,14,380,382,305,737,260,649,552,919,
    685,809,697,311,645,6,532,843,618,642,
    518,400,362,718,801,677,152,32,63,685,
    187,618,700,567,1,5,305,261,655,857,
    181,341,667,879,653,313,885,186,157,503,
    828,675,904,191,394,706,868,547,738,932,
    233,926,551,933,494,552,939,799,814,594,
    657,995,935,324,874,589,637,759,775,794,
    262,604,470,166,795,865,873,664,412,611,
    596,645,538,148,579,32,700,518,832,515,
    112,489,510,48,814,384,637,452,143,413,
    247,406,17,717,573,812,582,446,477,995,
    58,74,640,597,222,219,630,923,737,462,
    438,850,952,948,899,767,333,536,219,477,
    949,466,884,967,183,458,780,766,904,257,
    761,963,331,402,560,554,622,191,477,360,
    653,916,210,606,865,109,373,199,646,592,
    676,596,58,560,563,242,18,343,9,923,
    601,770,887,933,173,447,487,795,639,965,
    155,292,882,366,899,747,475,272,946,122,
    865,623,718,924,184,282,167,202,626,176,
    126,227,946,13,160,119,461,648,915,100,
    614,70,393,496,436,293,244,912,566,190,
    34,431,813,753,356,997,35,523,200,661,
    699,327,889,646,341,50,766,803,698,681,
    904,312,752,297,809,189,591,53,101,157,
    244,136,589,58,889,945,56,925,469,256,
    587,168,584,476,815,926,526,582,729,225,
    264,633,538,16,931,347,205,522,400,307,
    679,645,443,269,703,332,214,759,258,683,
    16,845,852,600,321,667,526,848,250,256,
    73,514,889,611,531,821,958,736,343,359,
    43,23,5,487,292,708,820,507,467,78,
    190,483,923,43,84,244,711,611,92,961,
    867,166,475,757,777,6,578,736,743,922,
    96,787,946,101,274,239,809,95,746,277,
    173,937,760,96,981,845,341,692,456,434,
    654,323,600,129,81,377,136,659,114,880,
    582,210,668,528,312,943,768,122,38,514,
    399,211,452,160,308,433,5,649,126,461,
    84,780,785,684,910,867,62,47,527,177,
    927,109,387,596,638,700,539,406,822,577,
    921,221,789,374,381,97,807,387,747,934,
    849,831,714,635,516,624,502,578,671,29,
    755,599,139,143,195,777,844,735,184,666,
    312,105,888,102,479,270,199,287,657,947,
    221,506,778,936,142,294,561,644,873,232,
    673,629,832,812,773,28,590,617,763,774,
    284,76,880,172,178,359,443,378,647,100,
    325,869,607,104,805,749,398,366,394,272,
    599,68,901,432,881,674,460,471,292,224,
    246,576,301,126,749,480,485,192,858,133,
    293,184,2,900,288,808,650,687,175,44,
    959,775,112,861,207,994,536,667,465,828,
    892,711,405,193,837,154,673,323,347,532,
};

unsigned int rand(void)
{
    unsigned int reg ;
    reg = rand_table[rand_table_idx++];
    if (rand_table_idx == RAND_MAX)
    {
        rand_table_idx = 0;
    }
    return reg;
}

#ifdef CONFIG_CHINESE_FONTS_RAM

#define isaf(c)         ((c) >= 'a' && (c) <= 'f')
#define isAF(c)         ((c) >= 'A' && (c) <= 'Z')
#define isdigit(c)      ((c) >= '0' && (c) <= '9')

/*
Summary:
    Convert string to int value
*/
unsigned int str_to_int(unsigned char *str_p, int bytes)
{
        int i, value = 0;
        unsigned char c, *p;

        p = str_p;

        for (i = 0; i < bytes; i++) {
                value <<= 4;
                c = *p++;
                if (isdigit(c))
                        value |= (c - '0');
                else if (isaf(c))
                        value |= (c - 'a') + 10;
                else if (isAF(c))
                        value |= (c - 'A') + 10;
                else
                        return 0;
        }
        return value;
}
#endif

/*
Summary:
    Construct a UNI string in the buffer provided from the cstring.
*/
unsigned int c_to_uni_str(
                        unsigned char *str_p,                /* Null terminated c-string */
                        unsigned int *p_uni_str,    /* buffer to use for contructing UNI string */
                        unsigned int max_size)      /* maximum buffer size in words */
{
    unsigned int i,num_chars;
#ifdef CONFIG_CHINESE_FONTS_RAM
    unsigned char *p;
#endif

#ifdef BCM_DEBUG
        if (!p_uni_str || !str_p)
        {
                BAPP_UTIL_DBGMSG(("%d bad param (0x%08x, 0x%08x, %d)\n", str_p,p_uni_str,max_size));
                return 0;
        }
#endif
    num_chars = strlen(str_p);
    if (num_chars > max_size)
        num_chars = max_size;

#ifdef CONFIG_CHINESE_FONTS_RAM
    /* test last 4 bytes to see if it is unicode? */
    if ((num_chars > 3 && 0 == num_chars % 4) && (0 == (str_to_int(str_p + num_chars - 4, 4)))) {
        num_chars = strlen(str_p) >> 2;         /* four bytes each */
        p = str_p;
        for (i = 0; i < num_chars; ++i, p += 4) {
                p_uni_str[i] = str_to_int(p, 4);
        }
    }
    else
#endif
    for (i = 0; i < strlen(str_p); ++i)
    {
        p_uni_str[i] = (unsigned int)(str_p[i]);
    }

    return num_chars;
}

/*
Summary:
    Construct a UNI string in the buffer provided from the null terminated UTF-16 string.
*/
unsigned int utf16_to_uni_str(
                        unsigned short *str_p,       /* NULL terminated (0x0000) UTF - 16 string */
                        unsigned int *p_uni_str,    /* buffer to use for contructing UNI string */
                        unsigned int max_size)      /* maximum buffer size in words */
{
    unsigned int i = 0;

    while ((str_p[i] != 0x0000) && (i < max_size))
    {
        p_uni_str[i] = (unsigned int)(str_p[i]);
        i++;
    }
    return i;
}

/*
Summary:
    Utility IO function.
Description:
    Utility IO function to be used for pseudo IO.
*/

int bin_read( void *buffer, int size, int count, void *fp )
{
    bin_read_t *p_br = (bin_read_t*)fp;
    size = size * count;
    if (p_br->cnt + size > p_br->size)
    {
        BAPP_UTIL_DBGMSG(("Requesting more bytes than available (cnt = %d, size = %d,total = %d)\n",
                          p_br->cnt,size,p_br->size));
        size = p_br->size - p_br->cnt;
    }

    memcpy(buffer,&p_br->data[p_br->cnt],size);
    p_br->cnt += size;
    return size;
}
/*
Summary:
    Utility IO function.
Description:
    Utility IO function to be used for pseudo IO.
*/

unsigned int bin_tell(void *fp )
{
    bin_read_t *p_br = (bin_read_t*)fp;

    return p_br->cnt;
}
/*
Summary:
    Utility IO function.
Description:
    Utility IO function to be used for pseudo IO.
*/

int bin_set(void *fp, int offset, int whence )
{
    bin_read_t *p_br = (bin_read_t*)fp;

        if ((whence != 0) || (offset > p_br->size))
                return -1;
        
        p_br->cnt = offset;
        return 0;
}

/*
Summary:
    finds a break in the string (space).
Description:
    finds a break in the string (space).
*/
unsigned int find_break_uni(
                            unsigned int* str,  /* UNI string */
                            unsigned int max            /* Number of characters in UNI string */
                            )
{
    unsigned int off = max - 1;
    while ((off > 0) && (str[off--] != 0x00000020))
    {
    }
    if (off == 0)
        off = max;
    else
        off++;
    return off;
}

#ifdef OLD_TEXTBOX
/*
Summary:
    Draw text at x,y and within the specified w,h.
Description:
    Draw text at x,y and within the specified w,h.
*/
int text_box(bgfx_surf_t *p_surf,               /* bgfx surface */
             bgfx_font_t *font,                 /* bgfx font */
            uint16_t x,                         /* x location in pixels */
            uint16_t y,                         /* y location in pixels */
            uint16_t width,                     /* width in pixels */
            uint16_t height,                    /* height in pixels */ 
            unsigned int *msg,                  /* UNI string */
            unsigned int msg_len,               /* Number of characters in the msg */
            bgfx_pixel c,                       /* palette index */
            int line_spacing                    /* number of vertical pixels between lines */
            )
{

    int cmax,xloc,yloc,fheight,chrcnt,maxchrs,boff,w,h;
    unsigned int *tstr = msg;
    /* setup the default character configurations */
    chrcnt = msg_len;
    /* Get maximum character params */
    bgfx_string_info(font,&s_test_char,1,&cmax,&fheight);

    maxchrs = width/cmax;
    xloc = x; yloc = y + fheight;

    if ((fheight > height) || (cmax > width))
        goto done;

    do
    {
        bgfx_string_info(font,(const unsigned long *)tstr,chrcnt,&w,&h);

        if (w <= width)
        {
            bgfx_draw_text(p_surf,xloc,yloc,(const unsigned long *)tstr,chrcnt,font,c);         
            goto done;
        }else
        {
            /* Stop if there is no more vertical space */
            if (h > (height - (yloc - y)))
                goto done;

            boff = find_break_uni(tstr,maxchrs); /* if no break is found returns maxchars */
            bgfx_draw_text(p_surf,xloc,yloc,(const unsigned long *)tstr,boff,font,c);           
            tstr += boff + 1; /* +1 to skip space */
            
            yloc += (fheight + line_spacing);
        }
    }while(1);

done:
    return 0;
}
#endif
/*
Summary:
    Same as text box but with shadow.
Description:
    Same as text box but with shadow.
*/
int text_box_shadow(bgfx_surf_t *p_surf,       /* bgfx surface */
             bgfx_font_t *font,                 /* bgfx font */
            uint16_t x,                         /* x location in pixels */
            uint16_t y,                         /* y location in pixels */
            uint16_t width,                     /* width in pixels */
            uint16_t height,                    /* height in pixels */ 
            unsigned int *msg,                  /* UNI string */
            unsigned int msg_len,               /* Number of characters in the msg */
            bgfx_pixel c_f,                     /* palette index for forground text*/
            bgfx_pixel c_b,                     /* palette index for background text */
            int shadow_offset,                 /* offset from xy to place shadow (can be negative) */
            int line_spacing                    /* number of vertical pixels between lines */
            )
{
#ifdef TEXT_SHADDOW
    text_box(p_surf,font,x + shadow_offset,y + shadow_offset,width,height,msg,msg_len,c_b,line_spacing);
#endif
    text_box(p_surf,font,x,y,width,height,msg,msg_len,c_f,line_spacing);
    return 0;
}

/* 
 * Delay for the number of milliseconds
 */

void bapp_sleep(unsigned int ms)
{
#ifndef LINUX
        bos_sleep(ms);
#else
        usleep(ms * 1000);
#endif
}


/****************************************************************
 * timeval_subtract
 *
 * INPUTS:      x,y - subtract the timevals
 * OUTPUTS:     result - result of x,y timeval subtract
 * RETURNS:     none
 * DESCRITPION: Subtract the `struct timeval' values X and Y,
 *              storing the result in RESULT.
 *              Return 1 if the difference is negative, otherwise 0
 ****************************************************************/

int timeval_subtract (struct timeval *result, struct timeval *x, struct timeval *y)
{
        /* Perform the carry for the later subtraction by updating y. */
        if (x->tv_usec < y->tv_usec)
        {
                int nsec = (y->tv_usec - x->tv_usec) / 1000000 + 1;
                y->tv_usec -= 1000000 * nsec;
                y->tv_sec += nsec;
        }
        if (x->tv_usec - y->tv_usec > 1000000)
        {
                int nsec = (x->tv_usec - y->tv_usec) / 1000000;
                y->tv_usec += 1000000 * nsec;
                y->tv_sec -= nsec;
        }

        /* Compute the time remaining to wait.
           tv_usec is certainly positive. */
        result->tv_sec = x->tv_sec - y->tv_sec;
        result->tv_usec = x->tv_usec - y->tv_usec;

        /* Return 1 if result is negative. */
        return x->tv_sec < y->tv_sec;
}