rgb444torgb444.c

symbian 下的helix player源代码

            db_rgb =(((db_rgb ^ da_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (db_rgb & da_rgb);
            do
            {
                *(unsigned short *) (d) = db_rgb;
                d += 2;
                if (!(--count))
                    goto end_of_row_2;
            } while ((limit -= step) >= 0);
            limit += dest_dx;
        }
      end_of_row_2:
        da_rgb = db_rgb;
      end_of_row:
        while (remainder--)
        {
            *(unsigned short *) (d) = da_rgb;
            d += 2;
        }
    }
}





void
RGB444toRGB444_ROW2X_SHRINK (unsigned char *dest_ptr_1,
                            unsigned char *dest_ptr_12,
                            unsigned char *dest_ptr_2, int dest_dx,
                            unsigned char *src_ptr, int src_dx)
{
    register unsigned char *d1 = dest_ptr_1;
    register unsigned char *d12 = dest_ptr_12;
    register unsigned char *d2 = dest_ptr_2;
    register unsigned char *s = src_ptr;
    register int count = dest_dx;
    register int limit = src_dx >> 1;
    register int step = dest_dx;
    if (count)
    {
        do
        {
            register unsigned int da_rgb;
            register unsigned int sa_rgb;
            sa_rgb = *(unsigned short *) (s);
            da_rgb = sa_rgb;
            *(unsigned short *) (d2) = da_rgb;
            d2 += 2;
            register unsigned int sb_rgb;
            sb_rgb = *(unsigned short *) (d1);
            da_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U <<0)))) +(da_rgb & sb_rgb);
            d1 += 2;
            *(unsigned short *) (d12) = da_rgb;
            d12 += 2;
            do
            {
                s += 2;
            }
            while ((limit -= step) >= 0);
            limit += src_dx;
        }
        while (--count);
    }
}



void
RGB444toRGB444_ROW2X_COPY (unsigned char *dest_ptr_1,
                          unsigned char *dest_ptr_12,
                          unsigned char *dest_ptr_2, int dest_dx,
                          unsigned char *src_ptr, int src_dx)
{
    register unsigned char *d1 = dest_ptr_1;
    register unsigned char *d12 = dest_ptr_12;
    register unsigned char *d2 = dest_ptr_2;
    register unsigned char *s = src_ptr;
    register int count = dest_dx;
    while (((unsigned int) d2 & 3) && ((unsigned int) s & 3) && count)
    {
        register unsigned int da_rgb;
        register unsigned int sa_rgb;
        sa_rgb = *(unsigned short *) (s);
        da_rgb = sa_rgb;
        s += 2;
        *(unsigned short *) (d2) = da_rgb;
        d2 += 2;
        register unsigned int sb_rgb;
        sb_rgb = *(unsigned short *) (d1);
        da_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & sb_rgb);
        d1 += 2;
        *(unsigned short *) (d12) = da_rgb;
        d12 += 2;
        count--;
    }
    while (count >= 4)
    {
        register unsigned int da_rgb;
        register unsigned int sa_rgb;
        register unsigned int sb_rgb;
        sa_rgb = *(unsigned short *) (s);
        da_rgb = sa_rgb;
        *(unsigned short *) (d2) = da_rgb;
        sb_rgb = *(unsigned short *) (d1);
        da_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & sb_rgb);
        *(unsigned short *) (d12) = da_rgb;
        sa_rgb = *(unsigned short *) (s + 2);
        da_rgb = sa_rgb;
        *(unsigned short *) (d2 + 2) = da_rgb;
        sb_rgb = *(unsigned short *) (d1 + 2);
        da_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & sb_rgb);
        *(unsigned short *) (d12 + 2) = da_rgb;
        sa_rgb = *(unsigned short *) (s + 4);
        da_rgb = sa_rgb;
        *(unsigned short *) (d2 + 2 * 2) = da_rgb;
        sb_rgb = *(unsigned short *) (d1 + 2 * 2);
        da_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & sb_rgb);
        *(unsigned short *) (d12 + 2 * 2) = da_rgb;
        sa_rgb = *(unsigned short *) (s + 6);
        da_rgb = sa_rgb;
        *(unsigned short *) (d2 + 3 * 2) = da_rgb;
        sb_rgb = *(unsigned short *) (d1 + 3 * 2);
        da_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & sb_rgb);
        *(unsigned short *) (d12 + 3 * 2) = da_rgb;
        s += 8;
        d1 += 4 * 2;
        d2 += 4 * 2;
        d12 += 4 * 2;
        count -= 4;
    }
    while (count)
    {
        register unsigned int da_rgb;
        register unsigned int sa_rgb;
        sa_rgb = *(unsigned short *) (s);
        da_rgb = sa_rgb;
        s += 2;
        *(unsigned short *) (d2) = da_rgb;
        d2 += 2;
        register unsigned int sb_rgb;
        sb_rgb = *(unsigned short *) (d1);
        da_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & sb_rgb);
        d1 += 2;
        *(unsigned short *) (d12) = da_rgb;
        d12 += 2;
        count--;
    }
}



void
RGB444toRGB444_ROW2X_STRETCH (unsigned char *dest_ptr_1,
                             unsigned char *dest_ptr_12,
                             unsigned char *dest_ptr_2, int dest_dx,
                             unsigned char *src_ptr, int src_dx)
{
    register unsigned char *d1 = dest_ptr_1;
    register unsigned char *d12 = dest_ptr_12;
    register unsigned char *d2 = dest_ptr_2;
    register unsigned char *s = src_ptr;
    register int count = dest_dx;
    register int limit = dest_dx >> 1;
    register int step = src_dx;
    if (count)
    {
        goto start;
        do
        {
            register unsigned int da_rgb;
            register unsigned int dc_rgb;
            if ((limit -= step) < 0)
            {
                limit += dest_dx;
              start:if (5 == 0)
              {
                  da_rgb = *(unsigned short *) (s);
              }
              else
              {
                  register unsigned int sa_rgb;
                  sa_rgb = *(unsigned short *) (s);
                  da_rgb = sa_rgb;
              }
                s += 2;
                register unsigned int sb_rgb;
                sb_rgb = *(unsigned short *) (d1);
                dc_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 +4 -1)) -(1U <<0))))+ (da_rgb & sb_rgb);
            }
            d1 += 2;
            *(unsigned short *) (d2) = da_rgb;
            d2 += 2;
            *(unsigned short *) (d12) = dc_rgb;
            d12 += 2;
        }
        while (--count);
    }
}


void
RGB444toRGB444_ROW2X_STRETCH2X (unsigned char *dest_ptr_1,
                               unsigned char *dest_ptr_12,
                               unsigned char *dest_ptr_2, int dest_dx,
                               unsigned char *src_ptr, int src_dx)
{
    register unsigned char *d1 = dest_ptr_1;
    register unsigned char *d12 = dest_ptr_12;
    register unsigned char *d2 = dest_ptr_2;
    register unsigned char *s = src_ptr;
    register int count = src_dx;
    if (count)
    {
        register unsigned int da_rgb;
        register unsigned int dc_rgb;
        register unsigned int sa_rgb;
        sa_rgb = *(unsigned short *) (s);
        da_rgb = sa_rgb;
        s += 2;
        register unsigned int sb_rgb;
        sb_rgb = *(unsigned short *) (d1);
        dc_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 - 1)) -(1U << 0)))) +(da_rgb & sb_rgb);
        d1 += 2 * 2;
        count--;
        *(unsigned short *) (d2) = da_rgb;
        d2 += 2;
        *(unsigned short *) (d12) = dc_rgb;
        d12 += 2;
        while (count >= 2)
        {
            register unsigned int db_rgb;
            register unsigned int dd_rgb;
            register unsigned int sa_rgb;
            sa_rgb = *(unsigned short *) (s);
            db_rgb = sa_rgb;
            da_rgb =(((da_rgb ^ db_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & db_rgb);
            *(unsigned short *) (d2) = da_rgb;
            *(unsigned short *) (d2 + 2) = db_rgb;
            register unsigned int sb_rgb;
            sb_rgb = *(unsigned short *) (d1);
            dd_rgb =(((db_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U <<0)))) +(db_rgb & sb_rgb);
            dc_rgb =(((dc_rgb ^ dd_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (dc_rgb & dd_rgb);
            *(unsigned short *) (d12) = dc_rgb;
            *(unsigned short *) (d12 + 2) = dd_rgb;
            sa_rgb = *(unsigned short *) (s + 2);
            da_rgb = sa_rgb;
            db_rgb =(((db_rgb ^ da_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (db_rgb & da_rgb);
            *(unsigned short *) (d2 + 2 * 2) = db_rgb;
            *(unsigned short *) (d2 + 3 * 2) = da_rgb;
            sb_rgb = *(unsigned short *) (d1 + 2 * 2);
            dc_rgb =(((da_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U <<0)))) +(da_rgb & sb_rgb);
            dd_rgb =(((dd_rgb ^ dc_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (dd_rgb & dc_rgb);
            *(unsigned short *) (d12 + 2 * 2) = dd_rgb;
            *(unsigned short *) (d12 + 3 * 2) = dc_rgb;
            s += 4;
            d1 += 4 * 2;
            d2 += 4 * 2;
            d12 += 4 * 2;
            count -= 2;
        }
        if (count)
        {
            register unsigned int db_rgb;
            register unsigned int dd_rgb;
            register unsigned int sa_rgb;
            sa_rgb = *(unsigned short *) (s);
            db_rgb = sa_rgb;
            da_rgb =(((da_rgb ^ db_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (da_rgb & db_rgb);
            *(unsigned short *) (d2) = da_rgb;
            *(unsigned short *) (d2 + 2) = db_rgb;
            *(unsigned short *) (d2 + 2 * 2) = db_rgb;
            register unsigned int sb_rgb;
            sb_rgb = *(unsigned short *) (d1);
            dd_rgb =(((db_rgb ^ sb_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U <<0)))) +(db_rgb & sb_rgb);
            dc_rgb =(((dc_rgb ^ dd_rgb) >> 1) &(((1U << (8 + 4 - 1)) - (1U << 8)) | ((1U << (4 + 4 - 1)) -(1U << 4)) | ((1U <<(0 + 4 -1)) -(1U << 0))))+ (dc_rgb & dd_rgb);
            *(unsigned short *) (d12) = dc_rgb;
            *(unsigned short *) (d12 + 2) = dd_rgb;
            *(unsigned short *) (d12 + 2 * 2) = dd_rgb;
        }
        else
        {
            *(unsigned short *) (d2) = da_rgb;