1 /***************************************************************************
2  * Copyright (c) 2024 Microsoft Corporation
3  *
4  * This program and the accompanying materials are made available under the
5  * terms of the MIT License which is available at
6  * https://opensource.org/licenses/MIT.
7  *
8  * SPDX-License-Identifier: MIT
9  **************************************************************************/
10 
11 
12 /**************************************************************************/
13 /**************************************************************************/
14 /**                                                                       */
15 /** GUIX Component                                                        */
16 /**                                                                       */
17 /**   Canvas Management (Canvas)                                          */
18 /**                                                                       */
19 /**************************************************************************/
20 
21 #define GX_SOURCE_CODE
22 
23 
24 /* Include necessary system files.  */
25 
26 #include "gx_api.h"
27 #include "gx_canvas.h"
28 #include "gx_system.h"
29 
30 /* Bring in externs for caller checking code.  */
31 GX_CALLER_CHECKING_EXTERNS
32 
33 /**************************************************************************/
34 /*                                                                        */
35 /*  FUNCTION                                               RELEASE        */
36 /*                                                                        */
37 /*    _gxe_canvas_polygon_draw                            PORTABLE C      */
38 /*                                                           6.1          */
39 /*  AUTHOR                                                                */
40 /*                                                                        */
41 /*    Kenneth Maxwell, Microsoft Corporation                              */
42 /*                                                                        */
43 /*  DESCRIPTION                                                           */
44 /*                                                                        */
45 /*    This service checks errors in the canavs polygon draw function.     */
46 /*                                                                        */
47 /*  INPUT                                                                 */
48 /*                                                                        */
49 /*    point_array                           Array of points of the        */
50 /*                                            polygon terminated by NULL  */
51 /*                                            entry.                      */
52 /*    number_of_points                      Number of points of polygon   */
53 /*                                                                        */
54 /*  OUTPUT                                                                */
55 /*                                                                        */
56 /*    status                                Completion status             */
57 /*                                                                        */
58 /*  CALLS                                                                 */
59 /*                                                                        */
60 /*    _gx_canvas_polygon_draw               The actual function           */
61 /*                                                                        */
62 /*  CALLED BY                                                             */
63 /*                                                                        */
64 /*    Application Code                                                    */
65 /*                                                                        */
66 /*  RELEASE HISTORY                                                       */
67 /*                                                                        */
68 /*    DATE              NAME                      DESCRIPTION             */
69 /*                                                                        */
70 /*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
71 /*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
72 /*                                            resulting in version 6.1    */
73 /*                                                                        */
74 /**************************************************************************/
_gxe_canvas_polygon_draw(GX_POINT * point_array,INT number_of_points)75 UINT  _gxe_canvas_polygon_draw(GX_POINT *point_array, INT number_of_points)
76 {
77 UINT status;
78 
79     /* Check for appropriate caller.  */
80     GX_INIT_AND_THREADS_CALLER_CHECKING
81 
82     /* Check error for valid pointer. */
83     if (point_array == GX_NULL)
84     {
85         return(GX_PTR_ERROR);
86     }
87     if (_gx_system_current_draw_context == GX_NULL)
88     {
89         return GX_INVALID_CONTEXT;
90     }
91 
92     /* Call the actual function.  */
93     status = _gx_canvas_polygon_draw(point_array, number_of_points);
94 
95     /* Return completion status.  */
96     return(status);
97 }
98 
99