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made it more robust against strange input 

--Sven
This commit is contained in:
Sven Neumann 2000-02-20 20:09:01 +00:00
parent d230a0e0e9
commit b78497d795
1 changed files with 26 additions and 20 deletions
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46
plug-ins/common/grid.c
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@ -104,21 +104,21 @@ void query (void)
{PARAM_IMAGE, "image", "Input image"},
{PARAM_DRAWABLE, "drawable", "Input drawable"},
{PARAM_INT32, "hwidth", "Horizontal Width"},
{PARAM_INT32, "hspace", "Horizontal Spacing"},
{PARAM_INT32, "hoffset", "Horizontal Offset"},
{PARAM_INT32, "hwidth", "Horizontal Width (>= 0)"},
{PARAM_INT32, "hspace", "Horizontal Spacing (>= 0)"},
{PARAM_INT32, "hoffset", "Horizontal Offset (>= 0)"},
{PARAM_COLOR, "hcolor", "Horizontal Colour"},
{PARAM_INT8, "hopacity", "Horizontal Opacity (0...255)"},
{PARAM_INT32, "vwidth", "Vertical Width"},
{PARAM_INT32, "vspace", "Vertical Spacing"},
{PARAM_INT32, "voffset", "Vertical Offset"},
{PARAM_INT32, "vwidth", "Vertical Width (>= 0)"},
{PARAM_INT32, "vspace", "Vertical Spacing (>= 0)"},
{PARAM_INT32, "voffset", "Vertical Offset (>= 0)"},
{PARAM_COLOR, "vcolor", "Vertical Colour"},
{PARAM_INT8, "vopacity", "Vertical Opacity (0...255)"},
{PARAM_INT32, "iwidth", "Intersection Width"},
{PARAM_INT32, "ispace", "Intersection Spacing"},
{PARAM_INT32, "ioffset", "Intersection Offset"},
{PARAM_INT32, "iwidth", "Intersection Width (>= 0)"},
{PARAM_INT32, "ispace", "Intersection Spacing (>= 0)"},
{PARAM_INT32, "ioffset", "Intersection Offset (>= 0)"},
{PARAM_COLOR, "icolor", "Intersection Colour"},
{PARAM_INT8, "iopacity", "Intersection Opacity (0...255)"},
};
@ -168,27 +168,27 @@ run (gchar *name,
if (n_params != 18)
status = STATUS_CALLING_ERROR;
if( status == STATUS_SUCCESS)
if (status == STATUS_SUCCESS)
{
grid_cfg.hwidth = param[3].data.d_int32;
grid_cfg.hspace = param[4].data.d_int32;
grid_cfg.hoffset = param[5].data.d_int32;
grid_cfg.hwidth = MAX (0, param[3].data.d_int32);
grid_cfg.hspace = MAX (0, param[4].data.d_int32);
grid_cfg.hoffset = MAX (0, param[5].data.d_int32);
grid_cfg.hcolor[0] = param[6].data.d_color.red;
grid_cfg.hcolor[1] = param[6].data.d_color.green;
grid_cfg.hcolor[2] = param[6].data.d_color.blue;
grid_cfg.hcolor[3] = param[7].data.d_int8;
grid_cfg.vwidth = param[8].data.d_int32;
grid_cfg.vspace = param[9].data.d_int32;
grid_cfg.voffset = param[10].data.d_int32;
grid_cfg.vwidth = MAX (0, param[8].data.d_int32);
grid_cfg.vspace = MAX (0, param[9].data.d_int32);
grid_cfg.voffset = MAX (0, param[10].data.d_int32);
grid_cfg.vcolor[0] = param[11].data.d_color.red;
grid_cfg.vcolor[1] = param[11].data.d_color.green;
grid_cfg.vcolor[2] = param[11].data.d_color.blue;
grid_cfg.vcolor[3] = param[12].data.d_int8;
grid_cfg.iwidth = param[13].data.d_int32;
grid_cfg.ispace = param[14].data.d_int32;
grid_cfg.ioffset = param[15].data.d_int32;
grid_cfg.iwidth = MAX (0, param[13].data.d_int32);
grid_cfg.ispace = MAX (0, param[14].data.d_int32);
grid_cfg.ioffset = MAX (0, param[15].data.d_int32);
grid_cfg.icolor[0] = param[16].data.d_color.red;
grid_cfg.icolor[1] = param[16].data.d_color.green;
grid_cfg.icolor[2] = param[16].data.d_color.blue;
@ -297,7 +297,9 @@ doit (GDrawable * drawable)
{
gimp_pixel_rgn_get_row (&srcPR, dest, sx1, y, (sx2-sx1));
y_offset = grid_cfg.vspace + y - grid_cfg.voffset;
y_offset = y - grid_cfg.voffset;
while (y_offset < 0)
y_offset += grid_cfg.vspace;
if ((y_offset + (grid_cfg.vwidth / 2)) % grid_cfg.vspace < grid_cfg.vwidth)
{
@ -312,6 +314,8 @@ doit (GDrawable * drawable)
for (x = sx1; x < sx2; x++)
{
x_offset = grid_cfg.hspace + x - grid_cfg.hoffset;
while (x_offset < 0)
x_offset += grid_cfg.hspace;
if ((x_offset % grid_cfg.hspace >= grid_cfg.ispace
&&
@ -329,6 +333,8 @@ doit (GDrawable * drawable)
for (x = sx1; x < sx2; x++)
{
x_offset = grid_cfg.hspace + x - grid_cfg.hoffset;
while (x_offset < 0)
x_offset += grid_cfg.hspace;
if ((x_offset + (grid_cfg.hwidth / 2)) % grid_cfg.hspace < grid_cfg.hwidth)
{