'\" te
.\" Copyright (c) 2007, Sun Microsystems, Inc.  All Rights Reserved 
.TH mlib_GraphicsDrawPolygon 3MLIB "2 Mar 2007" "SunOS 5.11" "mediaLib Library Functions"
.SH NAME
mlib_GraphicsDrawPolygon, mlib_GraphicsDrawPolygon_8, mlib_GraphicsDrawPolygon_32, mlib_GraphicsDrawPolygon_X_8, mlib_GraphicsDrawPolygon_X_32, mlib_GraphicsDrawPolygon_A_8, mlib_GraphicsDrawPolygon_A_32, mlib_GraphicsDrawPolygon_B_8, mlib_GraphicsDrawPolygon_B_32, mlib_GraphicsDrawPolygon_G_8, mlib_GraphicsDrawPolygon_G_32, mlib_GraphicsDrawPolygon_Z_8, mlib_GraphicsDrawPolygon_Z_32, mlib_GraphicsDrawPolygon_AB_8, mlib_GraphicsDrawPolygon_AB_32, mlib_GraphicsDrawPolygon_ABG_8, mlib_GraphicsDrawPolygon_ABG_32, mlib_GraphicsDrawPolygon_ABGZ_8, mlib_GraphicsDrawPolygon_ABGZ_32, mlib_GraphicsDrawPolygon_ABZ_8, mlib_GraphicsDrawPolygon_ABZ_32, mlib_GraphicsDrawPolygon_AG_8, mlib_GraphicsDrawPolygon_AG_32, mlib_GraphicsDrawPolygon_AGZ_8, mlib_GraphicsDrawPolygon_AGZ_32, mlib_GraphicsDrawPolygon_AZ_8, mlib_GraphicsDrawPolygon_AZ_32, mlib_GraphicsDrawPolygon_BG_8, mlib_GraphicsDrawPolygon_BG_32, mlib_GraphicsDrawPolygon_BGZ_8, mlib_GraphicsDrawPolygon_BGZ_32, mlib_GraphicsDrawPolygon_BZ_8, mlib_GraphicsDrawPolygon_BZ_32, mlib_GraphicsDrawPolygon_GZ_8, mlib_GraphicsDrawPolygon_GZ_32 \- draw polygon
.SH SYNOPSIS
.LP
.nf
cc [ \fIflag\fR... ] \fIfile\fR... \fB-lmlib\fR [ \fIlibrary\fR... ]
#include <mlib.h>

\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_8\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR, \fBmlib_s32\fR \fInpoints\fR, \fBmlib_s32\fR \fIc\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_32\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR, \fBmlib_s32\fR \fInpoints\fR, \fBmlib_s32\fR \fIc\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_X_8\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR, \fBmlib_s32\fR \fInpoints\fR, \fBmlib_s32\fR \fIc\fR,
     \fBmlib_s32\fR \fIc2\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_X_32\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR, \fBmlib_s32\fR \fInpoints\fR, \fBmlib_s32\fR \fIc\fR,
     \fBmlib_s32\fR \fIc2\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_A_8\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR, \fBmlib_s32\fR \fInpoints\fR, \fBmlib_s32\fR \fIc\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_A_32\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR, \fBmlib_s32\fR \fInpoints\fR, \fBmlib_s32\fR \fIc\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_B_8\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR, \fBmlib_s32\fR \fInpoints\fR,
     \fBmlib_s32\fR \fIc\fR, \fBmlib_s32\fR \fIa\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_B_32\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR, \fBmlib_s32\fR \fInpoints\fR, \fBmlib_s32\fR \fIc\fR,
     \fBmlib_s32\fR \fIa\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_G_8\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR, \fBmlib_s32\fR \fInpoints\fR,
     \fBconst mlib_s32 *\fR\fIc\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_G_32\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR,
     \fBmlib_s32\fR \fInpoints\fR, \fBconst mlib_s32 *\fR\fIc\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_Z_8\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBmlib_image *\fR\fIzbuffer\fR, \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR,
     \fBconst mlib_s16 *\fR\fIz\fR, \fBmlib_s32\fR \fInpoints\fR, \fBmlib_s32\fR \fIc\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_Z_32\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBmlib_image *\fR\fIzbuffer\fR, \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR,
     \fBconst mlib_s16 *\fR\fIz\fR, \fBmlib_s32\fR \fInpoints\fR, \fBmlib_s32\fR \fIc\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_AB_8\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR,
     \fBmlib_s32\fR \fInpoints\fR, \fBmlib_s32\fR \fIc\fR, \fBmlib_s32\fR \fIa\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_AB_32\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR, \fBmlib_s32\fR \fInpoints\fR, \fBmlib_s32\fR \fIc\fR,
     \fBmlib_s32\fR \fIa\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_ABG_8\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR, \fBmlib_s32\fR \fInpoints\fR, 
     \fBconst mlib_s32 *\fR\fIc\fR, \fBmlib_s32\fR \fIa\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_ABG_32\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR, \fBmlib_s32\fR \fInpoints\fR,
     \fBconst mlib_s32 *\fR\fIc\fR, \fBmlib_s32\fR \fIa\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_ABGZ_8\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBmlib_image *\fR\fIzbuffer\fR, \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR,
     \fBconst mlib_s16 *\fR\fIz\fR, \fBmlib_s32\fR \fInpoints\fR, \fBconst mlib_s32 *\fR\fIc\fR, \fBmlib_s32\fR \fIa\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_ABGZ_32\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBmlib_image *\fR\fIzbuffer\fR, \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR,
     \fBconst mlib_s16 *\fR\fIz\fR, \fBmlib_s32\fR \fInpoints\fR, \fBconst mlib_s32 *\fR\fIc\fR, \fBmlib_s32\fR \fIa\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_ABZ_8\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBmlib_image *\fR\fIzbuffer\fR, \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR,
     \fBconst mlib_s16 *\fR\fIz\fR, \fBmlib_s32\fR \fInpoints\fR,
     \fBmlib_s32\fR \fIc\fR, \fBmlib_s32\fR \fIa\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_ABZ_32\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBmlib_image *\fR\fIzbuffer\fR, \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR,
     \fBconst mlib_s16 *\fR\fIz\fR, \fBmlib_s32\fR \fInpoints\fR, \fBmlib_s32\fR \fIc\fR, \fBmlib_s32\fR \fIa\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_AG_8\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR, \fBmlib_s32\fR \fInpoints\fR,
     \fBconst mlib_s32 *\fR\fIc\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_AG_32\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR, \fBmlib_s32\fR \fInpoints\fR,
     \fBconst mlib_s32 *\fR\fIc\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_AGZ_8\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBmlib_image *\fR\fIzbuffer\fR, \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR,
     \fBconst mlib_s16 *\fR\fIz\fR, \fBmlib_s32\fR \fInpoints\fR,
     \fBconst mlib_s32 *\fR\fIc\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_AGZ_32\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBmlib_image *\fR\fIzbuffer\fR, \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR,
     \fBconst mlib_s16 *\fR\fIz\fR, \fBmlib_s32\fR \fInpoints\fR, \fBconst mlib_s32 *\fR\fIc\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_AZ_8\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBmlib_image *\fR\fIzbuffer\fR, \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR,
     \fBconst mlib_s16 *\fR\fIz\fR, \fBmlib_s32\fR \fInpoints\fR,
     \fBmlib_s32\fR \fIc\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_AZ_32\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBmlib_image *\fR\fIzbuffer\fR, \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR,
     \fBconst mlib_s16 *\fR\fIz\fR, \fBmlib_s32\fR \fInpoints\fR,
     \fBmlib_s32\fR \fIc\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_BG_8\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR, \fBmlib_s32\fR \fInpoints\fR,
     \fBconst mlib_s32 *\fR\fIc\fR, \fBmlib_s32\fR \fIa\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_BG_32\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR, \fBmlib_s32\fR \fInpoints\fR,
     \fBconst mlib_s32 *\fR\fIc\fR, \fBmlib_s32\fR \fIa\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_BGZ_8\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBmlib_image *\fR\fIzbuffer\fR, \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR, 
     \fBconst mlib_s16 *\fR\fIz\fR, \fBmlib_s32\fR \fInpoints\fR,
     \fBconst mlib_s32 *\fR\fIc\fR, \fBmlib_s32\fR \fIa\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_BGZ_32\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBmlib_image *\fR\fIzbuffer\fR, \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR,
     \fBconst mlib_s16 *\fR\fIz\fR, \fBmlib_s32\fR \fInpoints\fR, \fBconst mlib_s32 *\fR\fIc\fR, \fBmlib_s32\fR \fIa\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_BZ_8\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBmlib_image *\fR\fIzbuffer\fR, \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR,
     \fBconst mlib_s16 *\fR\fIz\fR, \fBmlib_s32\fR \fInpoints\fR,
     \fBmlib_s32\fR \fIc\fR, \fBmlib_s32\fR \fIa\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_BZ_32\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBmlib_image *\fR\fIzbuffer\fR, \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR,
     \fBconst mlib_s16 *\fR\fIz\fR, \fBmlib_s32\fR \fInpoints\fR,
     \fBmlib_s32\fR \fIc\fR, \fBmlib_s32\fR \fIa\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_GZ_8\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBmlib_image *\fR\fIzbuffer\fR, \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR,
     \fBconst mlib_s16 *\fR\fIz\fR, \fBmlib_s32\fR \fInpoints\fR,
     \fBconst mlib_s32 *\fR\fIc\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_GraphicsDrawPolygon_GZ_32\fR(\fBmlib_image *\fR\fIbuffer\fR,
     \fBmlib_image *\fR\fIzbuffer\fR, \fBconst mlib_s16 *\fR\fIx\fR, \fBconst mlib_s16 *\fR\fIy\fR,
     \fBconst mlib_s16 *\fR\fIz\fR, \fBmlib_s32\fR \fInpoints\fR,
     \fBconst mlib_s32 *\fR\fIc\fR);
.fi

.SH DESCRIPTION
.sp
.LP
Each of the \fBmlib_GraphicsDrawPolygon_*()\fR functions draws a polygon enclosing \fB(x1,y1)\fR, \fB(x2,y2)\fR, ..., and \fB(xn,yn)\fR.
.sp
.LP
Each of the \fBmlib_GraphicsDrawPolygon_X_*()\fR functions draws a polygon in Xor mode as follows:
.sp
.in +2
.nf
    data[x,y] ^= c ^ c2
.fi
.in -2

.sp
.LP
Each of the \fBmlib_GraphicsDrawPolygon_A_*()\fR functions draws a polygon with antialiasing.
.sp
.LP
Each of the \fBmlib_GraphicsDrawPolygon_B_*()\fR functions draws a polygon with alpha blending as follows:
.sp
.in +2
.nf
    data[x,y] = (data[x,y] * (255 - a) + c * a) / 255
.fi
.in -2

.sp
.LP
Each of the \fBmlib_GraphicsDrawPolygon_G_*()\fR functions draws a polygon with Gouraud shading.
.sp
.LP
Each of the \fBmlib_GraphicsDrawPolygon_Z_*()\fR functions draws a polygon with Z buffering.
.sp
.LP
Each of the other functions draws a polygon with a combination of two or more features like antialiasing (A), alpha blending (B), Gouraud shading (G), and Z buffering (Z).
.SH PARAMETERS
.sp
.LP
Each of the functions takes some of the following arguments:
.sp
.ne 2
.mk
.na
\fB\fIbuffer\fR\fR
.ad
.RS 11n
.rt  
Pointer to the image into which the function is drawing.
.RE

.sp
.ne 2
.mk
.na
\fB\fIzbuffer\fR\fR
.ad
.RS 11n
.rt  
Pointer to the image that holds the Z buffer.
.RE

.sp
.ne 2
.mk
.na
\fB\fIx\fR\fR
.ad
.RS 11n
.rt  
Pointer to the array of X coordinates of the vertices.
.RE

.sp
.ne 2
.mk
.na
\fB\fIy\fR\fR
.ad
.RS 11n
.rt  
Pointer to the array of Y coordinates of the vertices.
.RE

.sp
.ne 2
.mk
.na
\fB\fIz\fR\fR
.ad
.RS 11n
.rt  
Pointer to the array of Z coordinates of the vertices.
.RE

.sp
.ne 2
.mk
.na
\fB\fInpoints\fR\fR
.ad
.RS 11n
.rt  
Number of vertices in the arrays.
.RE

.sp
.ne 2
.mk
.na
\fB\fIc\fR\fR
.ad
.RS 11n
.rt  
Color used in the drawing, or pointer to array of colors of the points in the case of Gouraud shading.
.RE

.sp
.ne 2
.mk
.na
\fB\fIc2\fR\fR
.ad
.RS 11n
.rt  
Alternation color.
.RE

.sp
.ne 2
.mk
.na
\fB\fIa\fR\fR
.ad
.RS 11n
.rt  
Alpha value for blending. \fB0 \(<= a \(<= 255\fR.
.RE

.SH RETURN VALUES
.sp
.LP
Each of the functions returns \fBMLIB_SUCCESS\fR if successful. Otherwise it returns \fBMLIB_FAILURE\fR.
.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
tab() box;
cw(2.75i) |cw(2.75i) 
lw(2.75i) |lw(2.75i) 
.
ATTRIBUTE TYPEATTRIBUTE VALUE
_
Interface StabilityCommitted
_
MT-LevelMT-Safe
.TE

.SH SEE ALSO
.sp
.LP
\fBmlib_GraphicsFillPolygon\fR(3MLIB), \fBattributes\fR(5)