不廢話，直接上**
//呼叫部分
roundrect( 200, /* x */
400, /* y */
400, /* width */
300, /* height */
25, /* corner radius, at least less than 140? */
64 /* need to be "dividable" by 4 */ );
//實現部分
typedef struct
vector2f;
void roundrect( int x,
int y,
int width,
int height,
int radius,
int resolution )
; while( i != segment_count )
glbegin( gl_********_strip );
}// in order to stop and restart the strip.
glcolor4f( 0.0f, 1.0f, 0.0f, 1.5f );
glvertex2i( top_right[ 0 ].x,
top_right[ 0 ].y );
glcolor4f( 0.0f, 1.0f, 0.0f, 1.5f );
glvertex2i( top_right[ 0 ].x,
top_right[ 0 ].y );
// center
// bottom
i = 0;
while( i != segment_count )
}glend();
glbegin( gl_line_strip );
//glcolor4f( 0.0f, 1.0f, 1.0f, 1.0f );
glcolor4f( 1.0f, 0.5f, 0.0f, 1.0f );
// border
i = 0;
while( i != segment_count )
i = ( segment_count - 1 );
while( i > -1 )
i = 0;
while( i != segment_count )
// close the border.
glvertex2i( top_left[ ( segment_count - 1 ) ].x,
top_left[ ( segment_count - 1 ) ].y );
}glend();
glbegin( gl_lines );
//glcolor4f( 0.0f, 1.0f, 1.0f, 1.0f );
glcolor4f( 0.0f, 0.5f, 1.0f, 1.0f );
// separator
glend();
free( top_left );
free( bottom_left );
free( top_right );
free( bottom_right );
}
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