Content-type: text/html Man page of mlib_GraphicsDrawTriangle

mlib_GraphicsDrawTriangle

Section: mediaLib Library Functions (3MLIB)
Updated: 2 Mar 2007
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NAME

mlib_GraphicsDrawTriangle, mlib_GraphicsDrawTriangle_8, mlib_GraphicsDrawTriangle_32, mlib_GraphicsDrawTriangle_X_8, mlib_GraphicsDrawTriangle_X_32, mlib_GraphicsDrawTriangle_A_8, mlib_GraphicsDrawTriangle_A_32, mlib_GraphicsDrawTriangle_B_8, mlib_GraphicsDrawTriangle_B_32, mlib_GraphicsDrawTriangle_G_8, mlib_GraphicsDrawTriangle_G_32, mlib_GraphicsDrawTriangle_Z_8, mlib_GraphicsDrawTriangle_Z_32, mlib_GraphicsDrawTriangle_AB_8, mlib_GraphicsDrawTriangle_AB_32, mlib_GraphicsDrawTriangle_ABG_8, mlib_GraphicsDrawTriangle_ABG_32, mlib_GraphicsDrawTriangle_ABGZ_8, mlib_GraphicsDrawTriangle_ABGZ_32, mlib_GraphicsDrawTriangle_ABZ_8, mlib_GraphicsDrawTriangle_ABZ_32, mlib_GraphicsDrawTriangle_AG_8, mlib_GraphicsDrawTriangle_AG_32, mlib_GraphicsDrawTriangle_AGZ_8, mlib_GraphicsDrawTriangle_AGZ_32, mlib_GraphicsDrawTriangle_AZ_8, mlib_GraphicsDrawTriangle_AZ_32, mlib_GraphicsDrawTriangle_BG_8, mlib_GraphicsDrawTriangle_BG_32, mlib_GraphicsDrawTriangle_BGZ_8, mlib_GraphicsDrawTriangle_BGZ_32, mlib_GraphicsDrawTriangle_BZ_8, mlib_GraphicsDrawTriangle_BZ_32, mlib_GraphicsDrawTriangle_GZ_8, mlib_GraphicsDrawTriangle_GZ_32 - draw triangle  

SYNOPSIS

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

mlib_status mlib_GraphicsDrawTriangle_8(mlib_image *buffer, mlib_s16 x1,
    mlib_s16 y1, mlib_s16 x2, mlib_s16 y2, mlib_s16 x3, mlib_s16 y3, 
    mlib_s32 c);

mlib_status mlib_GraphicsDrawTriangle_32(mlib_image *buffer, mlib_s16 x1,
    mlib_s16 y1, mlib_s16 x2, mlib_s16 y2, mlib_s16 x3, mlib_s16 y3,
    mlib_s32 c);

mlib_status mlib_GraphicsDrawTriangle_X_8(mlib_image *buffer, mlib_s16 x1,
    mlib_s16 y1, mlib_s16 x2, mlib_s16 y2, mlib_s16 x3, mlib_s16 y3,
    mlib_s32 c, mlib_s32 c2);

mlib_status mlib_GraphicsDrawTriangle_X_32(mlib_image *buffer, mlib_s16 x1,
    mlib_s16 y1, mlib_s16 x2, mlib_s16 y2, mlib_s16 x3, mlib_s16 y3,
    mlib_s32 c, mlib_s32 c2);

mlib_status mlib_GraphicsDrawTriangle_A_8(mlib_image *buffer, mlib_s16 x1,
    mlib_s16 y1, mlib_s16 x2, mlib_s16 y2, mlib_s16 x3, mlib_s16 y3,
    mlib_s32 c);

mlib_status mlib_GraphicsDrawTriangle_A_32(mlib_image *buffer, mlib_s16 x1,
    mlib_s16 y1, mlib_s16 x2, mlib_s16 y2, mlib_s16 x3, mlib_s16 y3,
    mlib_s32 c);

mlib_status mlib_GraphicsDrawTriangle_B_8(mlib_image *buffer, mlib_s16 x1,
    mlib_s16 y1, mlib_s16 x2, mlib_s16 y2, mlib_s16 x3, mlib_s16 y3,
    mlib_s32 c, mlib_s32 a);

mlib_status mlib_GraphicsDrawTriangle_B_32(mlib_image *buffer, mlib_s16 x1,
    mlib_s16 y1, mlib_s16 x2, mlib_s16 y2, mlib_s16 x3, mlib_s16 y3,
    mlib_s32 c, mlib_s32 a);

mlib_status mlib_GraphicsDrawTriangle_G_8(mlib_image *buffer, mlib_s16 x1,
    mlib_s16 y1, mlib_s16 x2, mlib_s16 y2, mlib_s16 x3, mlib_s16 y3,
    mlib_s32 c1, mlib_s32 c2, mlib_s32 c3);

mlib_status mlib_GraphicsDrawTriangle_G_32(mlib_image *buffer, mlib_s16 x1,
    mlib_s16 y1, mlib_s16 x2, mlib_s16 y2, mlib_s16 x3, mlib_s16 y3,
    mlib_s32 c1, mlib_s32 c2, mlib_s32 c3);

mlib_status mlib_GraphicsDrawTriangle_Z_8(mlib_image *buffer,
    mlib_image *zbuffer, mlib_s16 x1, mlib_s16 y1, mlib_s16 z1,
    mlib_s16 x2, mlib_s16 y2, mlib_s16 z2,
    mlib_s16 x3, mlib_s16 y3, mlib_s16 z3, mlib_s32 c);

mlib_status mlib_GraphicsDrawTriangle_Z_32(mlib_image *buffer,
    mlib_image *zbuffer, mlib_s16 x1, mlib_s16 y1, mlib_s16 z1,
    mlib_s16 x2, mlib_s16 y2, mlib_s16 z2,
    mlib_s16 x3, mlib_s16 y3, mlib_s16 z3, mlib_s32 c);

mlib_status mlib_GraphicsDrawTriangle_AB_8(mlib_image *buffer, mlib_s16 x1,
    mlib_s16 y1, mlib_s16 x2, mlib_s16 y2, mlib_s16 x3, mlib_s16 y3,
    mlib_s32 c, mlib_s32 a);

mlib_status mlib_GraphicsDrawTriangle_AB_32(mlib_image *buffer,
    mlib_s16 x1, mlib_s16 y1, mlib_s16 x2, mlib_s16 y2, mlib_s16 x3,
    mlib_s16 y3, mlib_s32 c, mlib_s32 a);

mlib_status mlib_GraphicsDrawTriangle_ABG_8(mlib_image *buffer,
    mlib_s16 x1, mlib_s16 y1, mlib_s16 x2, mlib_s16 y2, mlib_s16 x3,
    mlib_s16 y3, mlib_s32 c1, mlib_s32 c2, mlib_s32 c3, mlib_s32 a);

mlib_status mlib_GraphicsDrawTriangle_ABG_32(mlib_image *buffer,
    mlib_s16 x1, mlib_s16 y1, mlib_s16 x2, mlib_s16 y2, mlib_s16 x3,
    mlib_s16 y3, mlib_s32 c1, mlib_s32 c2, mlib_s32 c3, mlib_s32 a);

mlib_status mlib_GraphicsDrawTriangle_ABGZ_8(mlib_image *buffer,
    mlib_image *zbuffer, mlib_s16 x1, mlib_s16 y1, mlib_s16 z1,
    mlib_s16 x2, mlib_s16 y2, mlib_s16 z2, mlib_s16 x3, mlib_s16 y3,
    mlib_s16 z3, mlib_s32 c1,
    mlib_s32 c2, mlib_s32 c3, mlib_s32 a);

mlib_status mlib_GraphicsDrawTriangle_ABGZ_32(mlib_image *buffer,
    mlib_image *zbuffer, mlib_s16 x1, mlib_s16 y1, mlib_s16 z1,
    mlib_s16 x2, mlib_s16 y2, mlib_s16 z2, mlib_s16 x3, mlib_s16 y3,
    mlib_s16 z3, mlib_s32 c1,
    mlib_s32 c2, mlib_s32 c3, mlib_s32 a);

mlib_status mlib_GraphicsDrawTriangle_ABZ_8(mlib_image *buffer,
    mlib_image *zbuffer, mlib_s16 x1, mlib_s16 y1, mlib_s16 z1,
    mlib_s16 x2, mlib_s16 y2, mlib_s16 z2, mlib_s16 x3, mlib_s16 y3,
    mlib_s16 z3, mlib_s32 c,
    mlib_s32 a);

mlib_status mlib_GraphicsDrawTriangle_ABZ_32(mlib_image *buffer,
    mlib_image *zbuffer, mlib_s16 x1, mlib_s16 y1, mlib_s16 z1,
    mlib_s16 x2, mlib_s16 y2, mlib_s16 z2, mlib_s16 x3, mlib_s16 y3,
    mlib_s16 z3, mlib_s32 c,
    mlib_s32 a);

mlib_status mlib_GraphicsDrawTriangle_AG_8(mlib_image *buffer, mlib_s16 x1,
    mlib_s16 y1, mlib_s16 x2, mlib_s16 y2, mlib_s16 x3, mlib_s16 y3,
    mlib_s32 c1,mlib_s32 c2, mlib_s32 c3);

mlib_status mlib_GraphicsDrawTriangle_AG_32(mlib_image *buffer,
    mlib_s16 x1, mlib_s16 y1, mlib_s16 x2, mlib_s16 y2, mlib_s16 x3,
    mlib_s16 y3, mlib_s32 c1, mlib_s32 c2, mlib_s32 c3);

mlib_status mlib_GraphicsDrawTriangle_AGZ_8(mlib_image *buffer,
    mlib_image *zbuffer, mlib_s16 x1, mlib_s16 y1, mlib_s16 z1,
    mlib_s16 x2, mlib_s16 y2, mlib_s16 z2, mlib_s16 x3, mlib_s16 y3,
    mlib_s16 z3, mlib_s32 c1,
    mlib_s32 c2, mlib_s32 c3);

mlib_status mlib_GraphicsDrawTriangle_AGZ_32(mlib_image *buffer,
    mlib_image *zbuffer, mlib_s16 x1, mlib_s16 y1, mlib_s16 z1,
    mlib_s16 x2, mlib_s16 y2, mlib_s16 z2, mlib_s16 x3, mlib_s16 y3,
    mlib_s16 z3, mlib_s32 c1,
    mlib_s32 c2, mlib_s32 c3);

mlib_status mlib_GraphicsDrawTriangle_AZ_8(mlib_image *buffer,
    mlib_image *zbuffer, mlib_s16 x1, mlib_s16 y1, mlib_s16 z1,
    mlib_s16 x2, mlib_s16 y2, mlib_s16 z2,
    mlib_s16 x3, mlib_s16 y3, mlib_s16 z3, mlib_s32 c);

mlib_status mlib_GraphicsDrawTriangle_AZ_32(mlib_image *buffer,
    mlib_image *zbuffer, mlib_s16 x1, mlib_s16 y1, mlib_s16 z1,
    mlib_s16 x2, mlib_s16 y2, mlib_s16 z2, mlib_s16 x3, mlib_s16 y3,
    mlib_s16 z3, mlib_s32 c);

mlib_status mlib_GraphicsDrawTriangle_BG_8(mlib_image *buffer, mlib_s16 x1,
    mlib_s16 y1, mlib_s16 x2, mlib_s16 y2, mlib_s16 x3, mlib_s16 y3,
    mlib_s32 c1, mlib_s32 c2, mlib_s32 c3, mlib_s32 a);

mlib_status mlib_GraphicsDrawTriangle_BG_32(mlib_image *buffer,
    mlib_s16 x1, mlib_s16 y1, mlib_s16 x2, mlib_s16 y2, mlib_s16 x3,
    mlib_s16 y3, mlib_s32 c1, mlib_s32 c2, mlib_s32 c3, mlib_s32 a);

mlib_status mlib_GraphicsDrawTriangle_BGZ_8(mlib_image *buffer,
    mlib_image *zbuffer, mlib_s16 x1, mlib_s16 y1, mlib_s16 z1,
    mlib_s16 x2, mlib_s16 y2, mlib_s16 z2, mlib_s16 x3, mlib_s16 y3,
    mlib_s16 z3, mlib_s32 c1,
    mlib_s32 c2, mlib_s32 c3, mlib_s32 a);

mlib_status mlib_GraphicsDrawTriangle_BGZ_32(mlib_image *buffer,
    mlib_image *zbuffer, mlib_s16 x1, mlib_s16 y1, mlib_s16 z1,
    mlib_s16 x2, mlib_s16 y2, mlib_s16 z2, mlib_s16 x3, mlib_s16 y3,
    mlib_s16 z3, mlib_s32 c1,
    mlib_s32 c2, mlib_s32 c3, mlib_s32 a);

mlib_status mlib_GraphicsDrawTriangle_BZ_8(mlib_image *buffer,
    mlib_image *zbuffer, mlib_s16 x1, mlib_s16 y1, mlib_s16 z1,
    mlib_s16 x2, mlib_s16 y2, mlib_s16 z2,
    mlib_s16 x3, mlib_s16 y3, mlib_s16 z3, mlib_s32 c, mlib_s32 a);

mlib_status mlib_GraphicsDrawTriangle_BZ_32(mlib_image *buffer,
    mlib_image *zbuffer, mlib_s16 x1, mlib_s16 y1, mlib_s16 z1,
    mlib_s16 x2, mlib_s16 y2, mlib_s16 z2, mlib_s16 x3, mlib_s16 y3,
    mlib_s16 z3, mlib_s32 c,
    mlib_s32 a);

mlib_status mlib_GraphicsDrawTriangle_GZ_8(mlib_image *buffer,
    mlib_image *zbuffer, mlib_s16 x1, mlib_s16 y1, mlib_s16 z1,
    mlib_s16 x2, mlib_s16 y2, mlib_s16 z2,
    mlib_s16 x3, mlib_s16 y3,
    mlib_s16 z3, mlib_s32 c1, mlib_s32 c2, mlib_s32 c3);

mlib_status mlib_GraphicsDrawTriangle_GZ_32(mlib_image *buffer,
    mlib_image *zbuffer, mlib_s16 x1, mlib_s16 y1, mlib_s16 z1,
    mlib_s16 x2, mlib_s16 y2, mlib_s16 z2, mlib_s16 x3, mlib_s16 y3,
    mlib_s16 z3, mlib_s32 c1,
    mlib_s32 c2, mlib_s32 c3);

 

DESCRIPTION

Each of the mlib_GraphicsDrawTriangle_*() functions draws a triangle with the vertices at (x1,y1), (x2,y2), and (x3,y3).

Each of the mlib_GraphicsDrawTriangle_X_*() functions draws a triangle in Xor mode as follows:

    data[x,y] ^= c ^ c2

Each of the mlib_GraphicsDrawTriangle_A_*() functions draws a triangle with antialiasing.

Each of the mlib_GraphicsDrawTriangle_B_*() functions draws a triangle with alpha blending as follows:

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

Each of the mlib_GraphicsDrawTriangle_G_*() functions draws a triangle with Gouraud shading.

Each of the mlib_GraphicsDrawTriangle_Z_*() functions draws a triangle with Z buffering.

Each of the other functions draws a triangle 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.

x1

X coordinate of the first vertex.

y1

Y coordinate of the first vertex.

z1

Z coordinate of the first vertex.

x2

X coordinate of the second vertex.

y2

Y coordinate of the second vertex.

z2

Z coordinate of the second vertex.

x3

X coordinate of the third vertex.

y3

Y coordinate of the third vertex.

z3

Z coordinate of the third vertex.

c

Color used in the drawing.

c1

Color of the first vertex.

c2

Color of the second vertex, or the alternation color in Xor Mode.

c3

Color of the third vertex.

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:

ATTRIBUTE TYPEATTRIBUTE VALUE

Interface StabilityCommitted

MT-Level

 

SEE ALSO

mlib_GraphicsFillTriangle(3MLIB), attributes(5)


 

Index

NAME
SYNOPSIS
DESCRIPTION
PARAMETERS
RETURN VALUES
ATTRIBUTES
SEE ALSO

This document was created by man2html, using the manual pages.
Time: 02:37:56 GMT, October 02, 2010