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 /** Display management (Display) */
18 /** */
19 /**************************************************************************/
20
21 #define GX_SOURCE_CODE
22
23
24 /* Include necessary system files. */
25
26 #include "gx_api.h"
27 #include "gx_display.h"
28
29 /* Bring in externs for caller checking code. */
30 GX_CALLER_CHECKING_EXTERNS
31
32 /**************************************************************************/
33 /* */
34 /* FUNCTION RELEASE */
35 /* */
36 /* _gxe_display_create PORTABLE C */
37 /* 6.1 */
38 /* AUTHOR */
39 /* */
40 /* Kenneth Maxwell, Microsoft Corporation */
41 /* */
42 /* DESCRIPTION */
43 /* */
44 /* This function checks for errors in the display create function */
45 /* call. */
46 /* */
47 /* INPUT */
48 /* */
49 /* display Display control block */
50 /* name Name of display */
51 /* display_driver_setup Display driver setup function */
52 /* width Display width in pixels */
53 /* height Display height in pixels */
54 /* display_control_block_size Size of the display control */
55 /* block */
56 /* */
57 /* OUTPUT */
58 /* */
59 /* status Completion status */
60 /* */
61 /* CALLS */
62 /* */
63 /* _gx_display_create Actual display create */
64 /* function */
65 /* */
66 /* CALLED BY */
67 /* */
68 /* Application Code */
69 /* */
70 /* RELEASE HISTORY */
71 /* */
72 /* DATE NAME DESCRIPTION */
73 /* */
74 /* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
75 /* 09-30-2020 Kenneth Maxwell Modified comment(s), */
76 /* resulting in version 6.1 */
77 /* */
78 /**************************************************************************/
_gxe_display_create(GX_DISPLAY * display,GX_CONST GX_CHAR * name,UINT (* display_driver_setup)(GX_DISPLAY *),GX_VALUE width,GX_VALUE height,UINT display_control_block_size)79 UINT _gxe_display_create(GX_DISPLAY *display, GX_CONST GX_CHAR *name,
80 UINT (*display_driver_setup)(GX_DISPLAY *),
81 GX_VALUE width, GX_VALUE height, UINT display_control_block_size)
82 {
83 UINT status;
84
85 /* Check for appropriate caller. */
86 GX_INIT_AND_THREADS_CALLER_CHECKING
87
88 /* Check for invalid input pointers. */
89 if ((display == GX_NULL) || (display_driver_setup == GX_NULL))
90 {
91 return(GX_PTR_ERROR);
92 }
93
94 if (display_control_block_size != sizeof(GX_DISPLAY))
95 {
96 return(GX_INVALID_SIZE);
97 }
98
99 if (display -> gx_display_id == GX_DISPLAY_ID)
100 {
101 return (GX_ALREADY_CREATED);
102 }
103
104 /* Call actual window create function. */
105 status = _gx_display_create(display, name, display_driver_setup, width, height);
106
107 /* Return completion status. */
108 return(status);
109 }
110
111
