mlib_GraphicsDrawCircle(3MmediaLib Library Functmlib_GraphicsDrawCircle(3MLIB)NAME
mlib_GraphicsDrawCircle, mlib_GraphicsDrawCircle_8, mlib_GraphicsDraw‐
Circle_32, mlib_GraphicsDrawCircle_X_8, mlib_GraphicsDrawCircle_X_32,
mlib_GraphicsDrawCircle_A_8, mlib_GraphicsDrawCircle_A_32, mlib_Graph‐
icsDrawCircle_B_8, mlib_GraphicsDrawCircle_B_32, mlib_GraphicsDrawCir‐
cle_AB_8, mlib_GraphicsDrawCircle_AB_32 - draw circle
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_GraphicsDrawCircle_8(mlib_image *buffer, mlib_s16 x,
mlib_s16 y, mlib_s32 r, mlib_s32 c);
mlib_status mlib_GraphicsDrawCircle_32(mlib_image *buffer, mlib_s16 x,
mlib_s16 y, mlib_s32 r, mlib_s32 c);
mlib_status mlib_GraphicsDrawCircle_X_8(mlib_image *buffer, mlib_s16 x,
mlib_s16 y, mlib_s32 r, mlib_s32 c, mlib_s32 c2);
mlib_status mlib_GraphicsDrawCircle_X_32(mlib_image *buffer, mlib_s16 x,
mlib_s16 y, mlib_s32 r, mlib_s32 c, mlib_s32 c2);
mlib_status mlib_GraphicsDrawCircle_A_8(mlib_image *buffer, mlib_s16 x,
mlib_s16 y, mlib_s32 r, mlib_s32 c);
mlib_status mlib_GraphicsDrawCircle_A_32(mlib_image *buffer, mlib_s16 x,
mlib_s16 y, mlib_s32 r, mlib_s32 c);
mlib_status mlib_GraphicsDrawCircle_B_8(mlib_image *buffer, mlib_s16 x,
mlib_s16 y, mlib_s32 r, mlib_s32 c, mlib_s32 a);
mlib_status mlib_GraphicsDrawCircle_B_32(mlib_image *buffer, mlib_s16 x,
mlib_s16 y, mlib_s32 r, mlib_s32 c, mlib_s32 a);
mlib_status mlib_GraphicsDrawCircle_AB_8(mlib_image *buffer, mlib_s16 x,
mlib_s16 y, mlib_s32 r, mlib_s32 c, mlib_s32 a);
mlib_status mlib_GraphicsDrawCircle_AB_32(mlib_image *buffer, mlib_s16 x,
mlib_s16 y, mlib_s32 r, mlib_s32 c, mlib_s32 a);
DESCRIPTION
Each of the mlib_GraphicsDrawCircle_*() functions draws a circle with
the center at (x, y) and radius r.
Each of the mlib_GraphicsDrawCircle_X_*() functions draws a circle in
Xor mode as follows:
data[x,y] ^= c ^ c2
Each of the mlib_GraphicsDrawCircle_A_*() functions draws a circle with
antialiasing.
Each of the mlib_GraphicsDrawCircle_B_*() functions draws a circle with
alpha blending as follows:
data[x,y] = (data[x,y] * (255 - a) + c * a) / 255
Each of the mlib_GraphicsDrawCircle_AB_*() functions draws a circle
with antialiasing and alpha blending.
PARAMETERS
Each of the functions takes some of the following arguments:
buffer Pointer to the image into which the function is drawing.
x X coordinate of the center.
y Y coordinate of the center.
r Radius of the arc.
c Color used in the drawing.
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:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Committed │
├─────────────────────────────┼─────────────────────────────┤
│MT-Level │MT-Safe │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOmlib_GraphicsDrawArc(3MLIB), mlib_GraphicsDrawEllipse(3MLIB),
attributes(5)SunOS 5.10 2 Mar 2007 mlib_GraphicsDrawCircle(3MLIB)
