iface.c

unix vnc 协议源码. VNC是一款远程控制工具软件.

if (pspecs->clip.right)        /* Clip right requested? */
    {
    mode |= BIT9;              /* Set clip right flag */
    }

if (pspecs->clip.top)          /* Clip top requested? */
    {
    mode |= BIT10;             /* Set clip top flag */
    }

if (pspecs->clip.bottom)       /* Clip bottom requested? */
    {
    mode |= BIT11;             /* Set clip bottom flag */
    }

if (pspecs->squeeze.left)      /* Squeeze left requested? */
    {
    mode |= BIT12;             /* Set squeeze left flag */
    }

if (pspecs->squeeze.right)     /* Squeeze right requested? */
    {
    mode |= BIT13;             /* Set squeeze right flag */
    }

if (pspecs->squeeze.top)       /* Squeeze top requested? */
    {
    mode |= BIT14;             /* Set squeeze top flag */
    }

if (pspecs->squeeze.bottom)    /* Squeeze bottom requested? */
    {
    mode |= BIT15;             /* Set squeeze bottom flag */
    }

specsarg.flags = mode;

sp_set_specs(&specsarg);
}

FUNCTION static fix31 make_mult(point_size, resolution)
real point_size;
real resolution;
{
real ms_factor;

return (fix31)floor((point_size * resolution * 65536.0) / (real)PTPERINCH + 0.5);
}

FUNCTION bool fw_make_char(char_index)
ufix16 char_index;
{
return sp_make_char(char_index);
}

FUNCTION buff_t *sp_load_char_data(file_offset, no_bytes, cb_offset)
fix31    file_offset;
fix15    no_bytes;
fix15    cb_offset;
/* 
 * Called by Speedo character generator to request that character
 * data be loaded from the font file.
 * This is a dummy function that assumes that the entire font has
 * been loaded.
 */
{
#if DEBUG
printf("load_char_data(%d, %d, %d)\n", file_offset, no_bytes, char_offset);
#endif
char_data.org = pfont->org + file_offset;
char_data.no_bytes = no_bytes;
return &char_data;
}

FUNCTION void sp_report_error(n)
fix15 n;        /* Error identification number */
/*
 * Called by Speedo character generator to report an error.
 */
{
switch(n)
    {
case 1:
    printf("Insufficient font data loaded\n");
    break;

case 3:
    printf("Transformation matrix out of range\n");
    break;

case 4:
    printf("Font format error\n");
    break;
                 
case 5:
    printf("Requested specs not compatible with output module\n");
    break;

case 7:
    printf("Intelligent transformation requested but not supported\n");
    break;

case 8:
    printf("Unsupported output mode requested\n");
    break;

case 9:
    printf("Extended font loaded but only compact fonts supported\n");
    break;

case 10:
    printf("Font specs not set prior to use of font\n");
    break;

case 12:
    printf("Character data not available()\n");
    break;

case 13:
    printf("Track kerning data not available()\n");
    break;

case 14:
    printf("Pair kerning data not available()\n");
    break;

default:
    printf("report_error(%d)\n", n);
    break;
    }
}



FUNCTION void sp_open_bitmap(sw_x, sw_y, xorg, yorg, xsize, ysize)
fix31  sw_x;                           /* X component of escapement vector */
fix31  sw_y;                           /* Y component of escapement vector */
fix31  xorg;                           /* X origin */
fix31  yorg;                           /* Y origin */
fix15 xsize;                           /* width of bitmap */
fix15 ysize;                           /* height of bitmap */
/* 
 * Called by Speedo character generator to initialize a buffer prior
 * to receiving bitmap data.
 */
{

fix15 xmin,xmax,ymin,ymax;

#if DEBUG
printf("sp_open_bitmap:\n");
printf("    X component of set width vector = %3.1f\n", (real)sw_x / 65536.0);
printf("    Y component of set width vector = %3.1f\n", (real)sw_y / 65536.0);
printf("    Bounding box is (%d, %d, %d, %d)\n", xmin, ymin, xmax, ymax);
#endif

xmin = xorg >> 16;
ymin = yorg >> 16;
xmax = xmin + xsize;
ymax = ymin + ysize;

set_width_x = ((sw_x >> 15) + 1) >> 1;
open_bitmap(set_width_x, xmin, xmax, ymin, ymax);
}

FUNCTION void sp_set_bitmap_bits(y, x1, x2)
fix15 y, x1, x2;
/* 
 * Called by Speedo character generator to write one row of pixels 
 * into the generated bitmap character.                               
 */
{
#if DEBUG
printf("set_bitmap_bits(%d, %d, %d)\n", y, x1, x2);
#endif

set_bitmap_bits(y, x1, x2);
}

FUNCTION void sp_close_bitmap()
/* 
 * Called by Speedo character generator to indicate all bitmap data
 * has been generated.
 */
{
#if DEBUG
printf("close_bitmap()\n");
#endif

close_bitmap();
}

FUNCTION void sp_open_outline(sw_x, sw_y, xmin, xmax, ymin, ymax)
fix31  sw_x;                           /* X component of escapement vector */
fix31  sw_y;                           /* Y component of escapement vector */
fix31  xmin;                           /* Minimum X value in outline */
fix31  xmax;                           /* Maximum X value in outline */
fix31  ymin;                           /* Minimum Y value in outline */
fix31  ymax;                           /* Maximum Y value in outline */
/*
 * Called by Speedo character generator to initialize prior to
 * outputting scaled outline data.
 */
{
#if DEBUG
printf("open_outline(%3.1f, %3.1f, %3.1f, %3.1f, %3.1f, %3.1f)\n",
    (real)sw_x / 65536.0, (real)sw_y / 65536.0,
    (real)xmin / 65536.0, (real)xmax / 65536.0, (real)ymin / 65536.0, (real)ymax / 65536.0);
#endif

set_width_x = ((sw_x >> 15) + 1) >> 1;
open_outline(set_width_x);
}

FUNCTION void sp_start_new_char()
/*
 * Called by Speedo character generator to initialize prior to
 * outputting scaled outline data for a sub-character in a compound
 * character.
 */
{
#if DEBUG
printf("start_new_char()\n");
#endif

start_new_char();
}

FUNCTION void sp_start_contour(x, y, outside)
fix31    x;       /* X coordinate of start point in 1/65536 pixels */
fix31    y;       /* Y coordinate of start point in 1/65536 pixels */
boolean outside;  /* TRUE if curve encloses ink (Counter-clockwise) */
/*
 * Called by Speedo character generator at the start of each contour
 * in the outline data of the character.
 */
{
real realx, realy;

realx = (real)x / 65536.0;
realy = (real)y / 65536.0;

#if DEBUG
printf("start_curve(%3.1f, %3.1f, %s)\n", 
    realx, realy, 
    outside? "outside": "inside");
#endif

start_curve(realx, realy, outside);
}

FUNCTION void sp_curve_to(x1, y1, x2, y2, x3, y3)
fix31 x1;               /* X coordinate of first control point in 1/65536 pixels */
fix31 y1;               /* Y coordinate of first control  point in 1/65536 pixels */
fix31 x2;               /* X coordinate of second control point in 1/65536 pixels */
fix31 y2;               /* Y coordinate of second control point in 1/65536 pixels */
fix31 x3;               /* X coordinate of curve end point in 1/65536 pixels */
fix31 y3;               /* Y coordinate of curve end point in 1/65536 pixels */
/*
 * Called by Speedo character generator once for each curve in the
 * scaled outline data of the character. This function is only called if curve
 * output is enabled in the set_specs() call.
 */
{
#if DEBUG
printf("curve_to(%3.1f, %3.1f, %3.1f, %3.1f, %3.1f, %3.1f)\n", 
    (real)x1 / 65536.0, (real)y1 / 65536.0,
    (real)x2 / 65536.0, (real)y2 / 65536.0,
    (real)x3 / 65536.0, (real)y3 / 65536.0);
#endif
}

FUNCTION void sp_line_to(x, y)
fix31 x;               /* X coordinate of vector end point in 1/65536 pixels */
fix31 y;               /* Y coordinate of vector end point in 1/65536 pixels */
/*
 * Called by Speedo character generator onece for each vector in the
 * scaled outline data for the character. This include curve data that has
 * been sub-divided into vectors if curve output has not been enabled
 * in the set_specs() call.
 */
{
real realx, realy;

realx = (real)x / 65536.0;
realy = (real)y / 65536.0;

#if DEBUG
printf("line_to(%3.1f, %3.1f)\n", 
    realx, realy); 
#endif            

line_to(realx, realy);
}

FUNCTION void sp_close_contour()
/*
 * Called by Speedo character generator at the end of each contour
 * in the outline data of the character.
 */
{
#if DEBUG
printf("close_curve()\n");
#endif

close_curve();
}

FUNCTION void sp_close_outline()
/*
 * Called by Speedo character generator at the end of output of the
 * scaled outline of the character.
 */
{
#if DEBUG
printf("close_outline()\n");
#endif

close_outline(set_width_x);
}