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.\"
.\" $XConsortium: p188,v 5.1 91/02/16 09:40:17 rws Exp $
.\"
.\"
$XMCOPY
.\" Copyright (c) 1990, 1991 by Sun Microsystems, Inc. and the X Consortium.
.\"
.\" All Rights Reserved
.\"
.\" Permission to use, copy, modify, and distribute this software and its
.\" documentation for any purpose and without fee is hereby granted,
.\" provided that the above copyright notice appear in all copies and that
.\" both that copyright notice and this permission notice appear in
.\" supporting documentation, and that the names of Sun Microsystems,
.\" and the X Consortium not be used in advertising or publicity
.\" pertaining to distribution of the software without specific, written
.\" prior permission.
.\"
.\" SUN MICROSYSTEMS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
.\" INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
.\" EVENT SHALL SUN MICROSYSTEMS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
.\" CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
.\" USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
.\" OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
.\" PERFORMANCE OF THIS SOFTWARE.
.ds f \s-2INQUIRE PREDEFINED COLOUR MAPPING REPRESENTATION\s+2
.TH "INQUIRE PREDEFINED COLOUR MAPPING REPRESENTATION" 3P+ "29 February 1991"
.SH NAME
INQUIRE PREDEFINED COLOUR MAPPING REPRESENTATION \- inquire a predefined colour mapping
representation for the specified workstation type
.IX "Colour Mapping" "INQUIRE PREDEFINED COLOUR MAPPING REPRESENTATION"
.IX "Inquiry functions" "INQUIRE PREDEFINED COLOUR MAPPING REPRESENTATION"
.IX "PHIGS Extension Functions" "INQUIRE PREDEFINED COLOUR MAPPING REPRESENTATION"
.SH SYNOPSIS
.SS C Syntax
.ft B
.ta 1.25i 3i
.nf
void
pinq_pred_colr_map_rep ( type, index, store, error_ind, map_method, map_data )
Pint type; \fIworkstation type\fP
Pint index; \fIpredefined index\fP
Pstore store; \fIHandle to store data\fP
Pint *error_ind; \fIOUT error indicator\fP
Pint *map_method \fIOUT colour mapping method\fP
Pcolr_map_data **map_data \fIOUT colour mapping data\fP
.fi
.ft R
.SS Required PHIGS Operating States
(PHOP, *, *, *)
.SH DESCRIPTION
.SS Purpose
\s-2INQUIRE PREDEFINED COLOUR MAPPING REPRESENTATION\s+2
returns the values of a specified entry in the
workstation type's table of predefined colour mapping representations.
.SS C Input Parameters
Applications using the \s-2C\s+2 binding must create a buffer to be used by this
function as memory space for storing data associated with the device state.
This buffer is passed as the \fIstore\fP argument.
.LP
The store buffer is a data area managed by \s-2PHIGS\s+2. While the application
is responsible for creating the inital buffer through a call to \s-2\CREATE STORE\s+2,
\s-2PHIGS\s+2 manages this area such that there is sufficient memory for the
specific inquiry. The data record within the store buffer is accessed
by the pointer pointed to by \fImap_data\fR.
.IP \fItype\fP
The type of workstation whose capabilities are inquired.
.IP \fIindex\fP
Entry in the workstation table of predefined colour mapping representations
to be returned.
.IP \fIstore\fR
The memory buffer \s-2PHIGS\s+2 is to use for storing the information
returned. This buffer must exist prior to calling this function (see
\s-2CREATE STORE (3P)\s+2).
.SS C Output Parameters
.IP \fIerror_ind\fP
A pointer to the location to store the error number of any error detected
by this function.
.IP \fImap_data\fP
A pointer to a pointer to a Pcolr_map_data structure that contains the
information specific to the data mapping method.
\s-2PHIGS\s+2 will allocate space for the structure in the Pstore object
and return the pointer to that allocated space in this parameter.
Pcolr_map_data is defined in phigs.h as follows:
.nf
.ta .5i +.5i +1i
.sp .4
typedef union {
.sp .2
struct {
Pint colr_model;
Pfloat_list weights;
Pcolr_rep_list colrs;
} method_r2
.sp .2
struct {
Pint colr_model;
Pfloat_list_list colr_lists;
} method_r3
.sp .2
} Pcolr_map_data;
.fi
.sp .4
Pfloat_list is defined in phigs.h as follows:
.ta .5i +1i +1.25i
.nf
.sp .4
typedef struct {
.sp .2
Pint num_floats; /* number of Pfloats in list */
Pfloat *floats; /* list of floats *
.sp .2
} Pfloat_list;
.fi
.sp .4
Pfloat_list_list is defined in phigs.h as follows:
.ta .5i +1i +1.25i
.nf
.sp .4
typedef struct {
.sp .2
Pint num_lists; /* number of lists in list */
Pfloat_list *lists; /* list of float lists */
.sp .2
} Pfloat_list_list;
.fi
.sp .4
Pcolr_rep_list is defined in phigs.h as follows:
.ta .5i +1i +1.25i
.nf
.sp .4
typedef struct {
.sp .2
Pint num_colr_reps; /* number of colours */
Pcolr_rep *colr_reps; /* array of colours */
.sp .2
} Pcolr_rep_list;
.fi
.sp .4
Pcolr_rep is defined in phigs.h as follows:
.ta .5i +1i +1i
.nf
.sp .2
typedef union {
.sp .2
Prgb rgb; /* Red Green Blue colour specification */
Pcieluv cieluv; /* CIE L*U*V* colour specification */
Phls hls; /* Hue Lightness Saturation colour specification */
Phsv hsv; /* Hue Saturation Value colour specification */
Pdata unsupp; /* Colour in unsupported colour model */
.sp .2
} Pcolr_rep;
.sp .2
.fi
.IP
Prgb is defined in phigs.h as follows:
.nf
.ta .5i +1i +1i
.sp .2
typedef struct {
.sp .2
Pfloat red; /* red, hue, etc */
Pfloat green; /* green, saturation, lightness, etc */
Pfloat blue; /* blue, value, saturation, etc */
.sp .2
} Prgb;
.fi
.IP
Pcieluv is defined in phigs.h as follows:
.nf
.ta .5i +1i +1i
.sp .2
typedef struct {
.sp .2
Pfloat cieluv_x; /* x coefficient */
Pfloat cieluv_y; /* y coefficient */
Pfloat cieluv_y_lum; /* y luminance */
.sp .2
} Pcieluv;
.fi
.IP
Phsv is defined in phigs.h as follows:
.nf
.ta .5i +1i +1i
.sp .2
typedef struct {
.sp .2
Pfloat hue; /* hue */
Pfloat satur; /* saturation */
Pfloat value; /* value */
.sp .2
} Phsv;
.fi
.IP
Phls is defined in phigs.h as follows:
.nf
.ta .5i +1i +1i
.sp .2
typedef struct {
.sp .2
Pfloat hue; /* hue */
Pfloat lightness; /* lightness */
Pfloat satur; /* saturation */
.sp .2
} Phls;
.fi
.IP
Pdata is defined in phigs.h as follows:
.nf
.ta .5i +1i +1i
.sp .2
typedef struct {
.sp .2
size_t size; /* size of data */
char *data /*pointer to data */
.sp .2
} Pdata;
.fi
.IP
There is no data associated with mapping method \s-2PCOLR_MAP_TRUE\s+2.
The data for method \s-2PCOLR_MAP_PSEUDO\s+2 is a list of weights
and a list of direct colours. \fIcolr_model\fR specifies the
type of colours given in the list of colours, \fIcolrs\fR.
The colour models are defined in phigs.h as follows:
.ta .5i +.5i
.nf
1 PMODEL_RGB
2 PMODEL_CIELUV
3 PMODEL_HSV
4 PMODEL_HLS
.fi
.IP
The data for mapping method \s-2PCOLR_MAP_PSEUDO_N\s+2
is \fIN\fR lists of direct colours. These colours may be of the same
types as for \s-2PCOLR_MAP_PSEUDO\s+2.
.SS Execution
If the inquired information is available, the error indicator is
returned as zero and values are returned in the output parameters.
.LP
If the inquired information is not available, the values returned
in the output parameters are undefined and the error
indicator is set to one of the following error numbers to indicate
the reason for nonavailability.
.LP
Since this is an inquiry function, \s-2ERROR HANDLING\s+2 is not
invoked when an error is detected by this function.
.RE
.sp .2
.SH ERRORS
.IP 002
Ignoring function, function requires state (\s-2PHOP,*,*,*\s+2)
.IP 051
Ignoring function, this information unavailable for this workstation
type
.IP 052
Ignoring function, workstation type not recognized by the implementation
.IP 059
Ignoring function, the specified workstation does not have output capability
(i.e. the workstation category is neither \s-2OUTPUT\s+2, \s-2OUTIN\s+2, nor \s-2MO\s+2)
.IP 062
Ignoring function, this information is not available for this
\s-2MO\s+2 workstation type
.IP 102
Ignoring function, specified representation has not been predefined on
this workstation
.IP 121
Ignoring function, the colour mapping index is less than 0.
.SH SEE ALSO
.nf
.IP
.ta 0.5i
.SM "SET COLOUR MAPPING REPRESENTATION (3P+)"
.SM "INQUIRE COLOUR MAPPING REPRESENTATION (3P+)"
.SM "CREATE STORE (3P)"
.SM "DELETE STORE (3P)"
.fi
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