1 /**************************************************************************/
2 /*                                                                        */
3 /*       Copyright (c) Microsoft Corporation. All rights reserved.        */
4 /*                                                                        */
5 /*       This software is licensed under the Microsoft Software License   */
6 /*       Terms for Microsoft Azure RTOS. Full text of the license can be  */
7 /*       found in the LICENSE file at https://aka.ms/AzureRTOS_EULA       */
8 /*       and in the root directory of this software.                      */
9 /*                                                                        */
10 /**************************************************************************/
11 
12 
13 /**************************************************************************/
14 /**************************************************************************/
15 /**                                                                       */
16 /** GUIX Component                                                        */
17 /**                                                                       */
18 /**   Canvas Management (Canvas)                                          */
19 /**                                                                       */
20 /**************************************************************************/
21 
22 #define GX_SOURCE_CODE
23 
24 
25 /* Include necessary system files.  */
26 
27 #include "gx_api.h"
28 #include "gx_canvas.h"
29 #include "gx_system.h"
30 
31 /* Bring in externs for caller checking code.  */
32 GX_CALLER_CHECKING_EXTERNS
33 
34 /**************************************************************************/
35 /*                                                                        */
36 /*  FUNCTION                                               RELEASE        */
37 /*                                                                        */
38 /*    _gxe_canvas_pixelmap_tile                           PORTABLE C      */
39 /*                                                           6.1          */
40 /*  AUTHOR                                                                */
41 /*                                                                        */
42 /*    Kenneth Maxwell, Microsoft Corporation                              */
43 /*                                                                        */
44 /*  DESCRIPTION                                                           */
45 /*                                                                        */
46 /*    This function checks errors in the canvas pixelmap tile function.   */
47 /*                                                                        */
48 /*  INPUT                                                                 */
49 /*                                                                        */
50 /*    fill                                  Area to fill with pixelmap    */
51 /*    pixelmap                              Pointer to actual pixelmap    */
52 /*                                            to draw                     */
53 /*                                                                        */
54 /*  OUTPUT                                                                */
55 /*                                                                        */
56 /*    status                                Completion status             */
57 /*                                                                        */
58 /*  CALLS                                                                 */
59 /*                                                                        */
60 /*   _gx_canvas_pixelmap_tile               The actual pixelmap tile      */
61 /*                                            routine                     */
62 /*                                                                        */
63 /*  CALLED BY                                                             */
64 /*                                                                        */
65 /*    Application Code                                                    */
66 /*                                                                        */
67 /*  RELEASE HISTORY                                                       */
68 /*                                                                        */
69 /*    DATE              NAME                      DESCRIPTION             */
70 /*                                                                        */
71 /*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
72 /*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
73 /*                                            resulting in version 6.1    */
74 /*                                                                        */
75 /**************************************************************************/
_gxe_canvas_pixelmap_tile(GX_RECTANGLE * fill,GX_PIXELMAP * pixelmap)76 UINT  _gxe_canvas_pixelmap_tile(GX_RECTANGLE *fill, GX_PIXELMAP *pixelmap)
77 {
78 UINT status;
79 
80     /* Check for appropriate caller.  */
81     GX_INIT_AND_THREADS_CALLER_CHECKING
82 
83     /* Check error for valid pointer. */
84     if ((fill == GX_NULL) || (pixelmap == GX_NULL))
85     {
86         return(GX_PTR_ERROR);
87     }
88 
89     if (_gx_system_current_draw_context == GX_NULL)
90     {
91         return GX_INVALID_CONTEXT;
92     }
93 
94     /* Check for invalid widget.  */
95     if ((fill -> gx_rectangle_left > fill -> gx_rectangle_right) ||
96         (fill -> gx_rectangle_top > fill -> gx_rectangle_bottom))
97     {
98         return(GX_INVALID_VALUE);
99     }
100 
101     /* Call the actual function.  */
102     status = _gx_canvas_pixelmap_tile(fill, pixelmap);
103 
104     /* Return completion status.  */
105     return(status);
106 }
107 
108