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 /**************************************************************************/
30 /*                                                                        */
31 /*  FUNCTION                                               RELEASE        */
32 /*                                                                        */
33 /*    _gx_display_driver_16bpp_pixel_write                PORTABLE C      */
34 /*                                                           6.3.0        */
35 /*  AUTHOR                                                                */
36 /*                                                                        */
37 /*    Kenneth Maxwell, Microsoft Corporation                              */
38 /*                                                                        */
39 /*  DESCRIPTION                                                           */
40 /*                                                                        */
41 /*    Generic 16bpp color format pixel write function.                    */
42 /*                                                                        */
43 /*  INPUT                                                                 */
44 /*                                                                        */
45 /*    context                               Drawing context               */
46 /*    x                                     X coordinate                  */
47 /*    y                                     Y coordinate                  */
48 /*    color                                 Color of pixel to write       */
49 /*                                                                        */
50 /*  OUTPUT                                                                */
51 /*                                                                        */
52 /*    None                                                                */
53 /*                                                                        */
54 /*  CALLS                                                                 */
55 /*                                                                        */
56 /*    None                                                                */
57 /*                                                                        */
58 /*  CALLED BY                                                             */
59 /*                                                                        */
60 /*    GUIX Internal Code                                                  */
61 /*                                                                        */
62 /*  RELEASE HISTORY                                                       */
63 /*                                                                        */
64 /*    DATE              NAME                      DESCRIPTION             */
65 /*                                                                        */
66 /*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
67 /*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
68 /*                                            resulting in version 6.1    */
69 /*  10-31-2023     Ting Zhu                 Modified comment(s),          */
70 /*                                            added partial canvas buffer */
71 /*                                            support,                    */
72 /*                                            resulting in version 6.3.0  */
73 /*                                                                        */
74 /**************************************************************************/
_gx_display_driver_16bpp_pixel_write(GX_DRAW_CONTEXT * context,INT x,INT y,GX_COLOR color)75 VOID _gx_display_driver_16bpp_pixel_write(GX_DRAW_CONTEXT *context, INT x, INT y, GX_COLOR color)
76 {
77 USHORT *put = (USHORT *)context -> gx_draw_context_memory;
78 
79     GX_CALCULATE_PUTROW(put, x, y, context);
80 
81     /* write the pixel value */
82     *put = (USHORT)color;
83 }
84 
85