mlib_GraphicsDrawArc(3MLIB) mediaLib Library Functions mlib_GraphicsDrawArc(3MLIB)
NAME
mlib_GraphicsDrawArc, mlib_GraphicsDrawArc_8, mlib_GraphicsDrawArc_32, mlib_GraphicsDrawArc_X_8, mlib_GraphicsDrawArc_X_32, mlib_Graphics-
DrawArc_A_8, mlib_GraphicsDrawArc_A_32, mlib_GraphicsDrawArc_B_8, mlib_GraphicsDrawArc_B_32, mlib_GraphicsDrawArc_AB_8, mlib_Graphics-
DrawArc_AB_32 - draw arc
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_GraphicsDrawArc_8(mlib_image *buffer, mlib_s16 x,
mlib_s16 y, mlib_s32 r, mlib_f32 t1, mlib_f32 t2, mlib_s32 c);
mlib_status mlib_GraphicsDrawArc_32(mlib_image *buffer, mlib_s16 x,
mlib_s16 y, mlib_s32 r, mlib_f32 t1, mlib_f32 t2, mlib_s32 c);
mlib_status mlib_GraphicsDrawArc_X_8(mlib_image *buffer, mlib_s16 x,
mlib_s16 y, mlib_s32 r, mlib_f32 t1, mlib_f32 t2, mlib_s32 c,
mlib_s32 c2);
mlib_status mlib_GraphicsDrawArc_X_32(mlib_image *buffer, mlib_s16 x,
mlib_s16 y, mlib_s32 r, mlib_f32 t1, mlib_f32 t2, mlib_s32 c,
mlib_s32 c2);
mlib_status mlib_GraphicsDrawArc_A_8(mlib_image *buffer, mlib_s16 x,
mlib_s16 y, mlib_s32 r, mlib_f32 t1, mlib_f32 t2, mlib_s32 c);
mlib_status mlib_GraphicsDrawArc_A_32(mlib_image *buffer, mlib_s16 x,
mlib_s16 y, mlib_s32 r, mlib_f32 t1, mlib_f32 t2, mlib_s32 c);
mlib_status mlib_GraphicsDrawArc_B_8(mlib_image *buffer, mlib_s16 x,
mlib_s16 y, mlib_s32 r, mlib_f32 t1, mlib_f32 t2, mlib_s32 c,
mlib_s32 a);
mlib_status mlib_GraphicsDrawArc_B_32(mlib_image *buffer, mlib_s16 x,
mlib_s16 y, mlib_s32 r, mlib_f32 t1, mlib_f32 t2, mlib_s32 c,
mlib_s32 a);
mlib_status mlib_GraphicsDrawArc_AB_8(mlib_image *buffer, mlib_s16 x,
mlib_s16 y, mlib_s32 r, mlib_f32 t1, mlib_f32 t2, mlib_s32 c,
mlib_s32 a);
mlib_status mlib_GraphicsDrawArc_AB_32(mlib_image *buffer, mlib_s16 x,
mlib_s16 y, mlib_s32 r, mlib_f32 t1, mlib_f32 t2, mlib_s32 c,
mlib_s32 a);
DESCRIPTION
Each of the mlib_GraphicsDrawArc_*() functions draws an arc with the center at (x, y), radius r, start angle t1, and end angle t2.
Each of the mlib_GraphicsDrawArc_X_*() functions draws an arc in Xor mode as follows:
data[x,y] ^= c ^ c2
Each of the mlib_GraphicsDrawArc_A_*() functions draws an arc with antialiasing.
Each of the mlib_GraphicsDrawArc_B_*() functions draws an arc with alpha blending as follows:
data[x,y] = (data[x,y] * (255 - a) + c * a) / 255
Each of the mlib_GraphicsDrawArc_AB_*() functions draws an arc 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.
t1 Start angle of the arc in radians.
t2 End angle of the arc in radians.
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 ALSO
mlib_GraphicsDrawCircle(3MLIB), mlib_GraphicsDrawEllipse(3MLIB), attributes(5)
SunOS 5.11 2 Mar 2007 mlib_GraphicsDrawArc(3MLIB)