, 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

Synopsis

cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>

mlib_status mlib_GraphicsDrawPolygon_8(mlib_image *buffer,
     const mlib_s16 *x, const mlib_s16 *y, mlib_s32 npoints, mlib_s32 c);

mlib_status mlib_GraphicsDrawPolygon_32(mlib_image *buffer,
     const mlib_s16 *x, const mlib_s16 *y, mlib_s32 npoints, mlib_s32 c);

mlib_status mlib_GraphicsDrawPolygon_X_8(mlib_image *buffer,
     const mlib_s16 *x, const mlib_s16 *y, mlib_s32 npoints, mlib_s32 c,
     mlib_s32 c2);

mlib_status mlib_GraphicsDrawPolygon_X_32(mlib_image *buffer,
     const mlib_s16 *x, const mlib_s16 *y, mlib_s32 npoints, mlib_s32 c,
     mlib_s32 c2);

mlib_status mlib_GraphicsDrawPolygon_A_8(mlib_image *buffer,
     const mlib_s16 *x, const mlib_s16 *y, mlib_s32 npoints, mlib_s32 c);

mlib_status mlib_GraphicsDrawPolygon_A_32(mlib_image *buffer,
     const mlib_s16 *x, const mlib_s16 *y, mlib_s32 npoints, mlib_s32 c);

mlib_status mlib_GraphicsDrawPolygon_B_8(mlib_image *buffer,
     const mlib_s16 *x, const mlib_s16 *y, mlib_s32 npoints,
     mlib_s32 c, mlib_s32 a);

mlib_status mlib_GraphicsDrawPolygon_B_32(mlib_image *buffer,
     const mlib_s16 *x, const mlib_s16 *y, mlib_s32 npoints, mlib_s32 c,
     mlib_s32 a);

mlib_status mlib_GraphicsDrawPolygon_G_8(mlib_image *buffer,
     const mlib_s16 *x, const mlib_s16 *y, mlib_s32 npoints,
     const mlib_s32 *c);

mlib_status mlib_GraphicsDrawPolygon_G_32(mlib_image *buffer,
     const mlib_s16 *x, const mlib_s16 *y,
     mlib_s32 npoints, const mlib_s32 *c);

mlib_status mlib_GraphicsDrawPolygon_Z_8(mlib_image *buffer,
     mlib_image *zbuffer, const mlib_s16 *x, const mlib_s16 *y,
     const mlib_s16 *z, mlib_s32 npoints, mlib_s32 c);

mlib_status mlib_GraphicsDrawPolygon_Z_32(mlib_image *buffer,
     mlib_image *zbuffer, const mlib_s16 *x, const mlib_s16 *y,
     const mlib_s16 *z, mlib_s32 npoints, mlib_s32 c);

mlib_status mlib_GraphicsDrawPolygon_AB_8(mlib_image *buffer,
     const mlib_s16 *x, const mlib_s16 *y,
     mlib_s32 npoints, mlib_s32 c, mlib_s32 a);

mlib_status mlib_GraphicsDrawPolygon_AB_32(mlib_image *buffer,
     const mlib_s16 *x, const mlib_s16 *y, mlib_s32 npoints, mlib_s32 c,
     mlib_s32 a);

mlib_status mlib_GraphicsDrawPolygon_ABG_8(mlib_image *buffer,
     const mlib_s16 *x, const mlib_s16 *y, mlib_s32 npoints, 
     const mlib_s32 *c, mlib_s32 a);

mlib_status mlib_GraphicsDrawPolygon_ABG_32(mlib_image *buffer,
     const mlib_s16 *x, const mlib_s16 *y, mlib_s32 npoints,
     const mlib_s32 *c, mlib_s32 a);

mlib_status mlib_GraphicsDrawPolygon_ABGZ_8(mlib_image *buffer,
     mlib_image *zbuffer, const mlib_s16 *x, const mlib_s16 *y,
     const mlib_s16 *z, mlib_s32 npoints, const mlib_s32 *c, mlib_s32 a);

mlib_status mlib_GraphicsDrawPolygon_ABGZ_32(mlib_image *buffer,
     mlib_image *zbuffer, const mlib_s16 *x, const mlib_s16 *y,
     const mlib_s16 *z, mlib_s32 npoints, const mlib_s32 *c, mlib_s32 a);

mlib_status mlib_GraphicsDrawPolygon_ABZ_8(mlib_image *buffer,
     mlib_image *zbuffer, const mlib_s16 *x, const mlib_s16 *y,
     const mlib_s16 *z, mlib_s32 npoints,
     mlib_s32 c, mlib_s32 a);

mlib_status mlib_GraphicsDrawPolygon_ABZ_32(mlib_image *buffer,
     mlib_image *zbuffer, const mlib_s16 *x, const mlib_s16 *y,
     const mlib_s16 *z, mlib_s32 npoints, mlib_s32 c, mlib_s32 a);

mlib_status mlib_GraphicsDrawPolygon_AG_8(mlib_image *buffer,
     const mlib_s16 *x, const mlib_s16 *y, mlib_s32 npoints,
     const mlib_s32 *c);

mlib_status mlib_GraphicsDrawPolygon_AG_32(mlib_image *buffer,
     const mlib_s16 *x, const mlib_s16 *y, mlib_s32 npoints,
     const mlib_s32 *c);

mlib_status mlib_GraphicsDrawPolygon_AGZ_8(mlib_image *buffer,
     mlib_image *zbuffer, const mlib_s16 *x, const mlib_s16 *y,
     const mlib_s16 *z, mlib_s32 npoints,
     const mlib_s32 *c);

mlib_status mlib_GraphicsDrawPolygon_AGZ_32(mlib_image *buffer,
     mlib_image *zbuffer, const mlib_s16 *x, const mlib_s16 *y,
     const mlib_s16 *z, mlib_s32 npoints, const mlib_s32 *c);

mlib_status mlib_GraphicsDrawPolygon_AZ_8(mlib_image *buffer,
     mlib_image *zbuffer, const mlib_s16 *x, const mlib_s16 *y,
     const mlib_s16 *z, mlib_s32 npoints,
     mlib_s32 c);

mlib_status mlib_GraphicsDrawPolygon_AZ_32(mlib_image *buffer,
     mlib_image *zbuffer, const mlib_s16 *x, const mlib_s16 *y,
     const mlib_s16 *z, mlib_s32 npoints,
     mlib_s32 c);

mlib_status mlib_GraphicsDrawPolygon_BG_8(mlib_image *buffer,
     const mlib_s16 *x, const mlib_s16 *y, mlib_s32 npoints,
     const mlib_s32 *c, mlib_s32 a);

mlib_status mlib_GraphicsDrawPolygon_BG_32(mlib_image *buffer,
     const mlib_s16 *x, const mlib_s16 *y, mlib_s32 npoints,
     const mlib_s32 *c, mlib_s32 a);

mlib_status mlib_GraphicsDrawPolygon_BGZ_8(mlib_image *buffer,
     mlib_image *zbuffer, const mlib_s16 *x, const mlib_s16 *y, 
     const mlib_s16 *z, mlib_s32 npoints,
     const mlib_s32 *c, mlib_s32 a);

mlib_status mlib_GraphicsDrawPolygon_BGZ_32(mlib_image *buffer,
     mlib_image *zbuffer, const mlib_s16 *x, const mlib_s16 *y,
     const mlib_s16 *z, mlib_s32 npoints, const mlib_s32 *c, mlib_s32 a);

mlib_status mlib_GraphicsDrawPolygon_BZ_8(mlib_image *buffer,
     mlib_image *zbuffer, const mlib_s16 *x, const mlib_s16 *y,
     const mlib_s16 *z, mlib_s32 npoints,
     mlib_s32 c, mlib_s32 a);

mlib_status mlib_GraphicsDrawPolygon_BZ_32(mlib_image *buffer,
     mlib_image *zbuffer, const mlib_s16 *x, const mlib_s16 *y,
     const mlib_s16 *z, mlib_s32 npoints,
     mlib_s32 c, mlib_s32 a);

mlib_status mlib_GraphicsDrawPolygon_GZ_8(mlib_image *buffer,
     mlib_image *zbuffer, const mlib_s16 *x, const mlib_s16 *y,
     const mlib_s16 *z, mlib_s32 npoints,
     const mlib_s32 *c);

mlib_status mlib_GraphicsDrawPolygon_GZ_32(mlib_image *buffer,
     mlib_image *zbuffer, const mlib_s16 *x, const mlib_s16 *y,
     const mlib_s16 *z, mlib_s32 npoints,
     const mlib_s32 *c);

Description

Each of the mlib_GraphicsDrawPolygon_*() functions draws a polygon enclosing (x1,y1), (x2,y2), ..., and (xn,yn).

Each of the mlib_GraphicsDrawPolygon_X_*() functions draws a polygon in Xor mode as follows:

    data[x,y] ^= c ^ c2

Each of the mlib_GraphicsDrawPolygon_A_*() functions draws a polygon with antialiasing.

Each of the mlib_GraphicsDrawPolygon_B_*() functions draws a polygon with alpha blending as follows:

    data[x,y] = (data[x,y] * (255 - a) + c * a) / 255

Each of the mlib_GraphicsDrawPolygon_G_*() functions draws a polygon with Gouraud shading.

Each of the mlib_GraphicsDrawPolygon_Z_*() functions draws a polygon with Z buffering.

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).

Parameters

Each of the functions takes some of the following arguments:

buffer

Pointer to the image into which the function is drawing.

zbuffer

Pointer to the image that holds the Z buffer.

x

Pointer to the array of X coordinates of the vertices.

y

Pointer to the array of Y coordinates of the vertices.

z

Pointer to the array of Z coordinates of the vertices.

npoints

Number of vertices in the arrays.

c

Color used in the drawing, or pointer to array of colors of the points in the case of Gouraud shading.

c2

Alternation color.

a

Alpha value for blending. 0 ≤ a ≤ 255.

Return Values

Each of the functions returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.

Attributes

See attributes(5) for descriptions of the following attributes:

See Also

mlib_GraphicsFillPolygon(3MLIB), attributes(5)