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 /** Win32 Display Management (Display) */
18 /** */
19 /**************************************************************************/
20 #ifdef WIN32
21 #include "tx_api.h"
22 #include "gx_api.h"
23 #include "gx_system.h"
24 #include "gx_display.h"
25 #include "windows.h"
26 #include "gx_win32_display_driver.h"
27
28 extern VOID _gx_chromart_simulation_display_driver_565rgb_setup(GX_DISPLAY *display, VOID *aux_data,
29 VOID (*toggle_function)(struct GX_CANVAS_STRUCT *canvas,
30 GX_RECTANGLE *dirty_area));
31
32 /**************************************************************************/
33 /* */
34 /* FUNCTION RELEASE */
35 /* */
36 /* win32_chromart_simulation_565rgb_bitmap_header_create */
37 /* PORTABLE C */
38 /* 6.1.3 */
39 /* AUTHOR */
40 /* */
41 /* Kenneth Maxwell, Microsoft Corporation */
42 /* */
43 /* DESCRIPTION */
44 /* */
45 /* This function creates bitmap header for 565rgb driver. */
46 /* */
47 /* INPUT */
48 /* */
49 /* display Pointer to GX_DISPLAY */
50 /* */
51 /* OUTPUT */
52 /* */
53 /* None */
54 /* */
55 /* CALLS */
56 /* */
57 /* None */
58 /* */
59 /* CALLED BY */
60 /* */
61 /* win32_chromart_graphics_driver_setup_565rgb */
62 /* */
63 /* RELEASE HISTORY */
64 /* */
65 /* DATE NAME DESCRIPTION */
66 /* */
67 /* 12-31-2020 Kenneth Maxwell Initial Version 6.1.3 */
68 /* */
69 /**************************************************************************/
win32_565rgb_bitmap_header_create(GX_DISPLAY * display)70 static void win32_565rgb_bitmap_header_create(GX_DISPLAY *display)
71 {
72 DWORD *putmask;
73 GX_WIN32_DISPLAY_DRIVER_DATA *instance = (GX_WIN32_DISPLAY_DRIVER_DATA *)display -> gx_display_driver_data;
74
75 instance -> win32_driver_bmpinfo.gx_bmp_header.biSize = sizeof(BITMAPINFOHEADER);
76 instance -> win32_driver_bmpinfo.gx_bmp_header.biWidth = display -> gx_display_width;
77 instance -> win32_driver_bmpinfo.gx_bmp_header.biHeight = display -> gx_display_height;
78
79 instance -> win32_driver_bmpinfo.gx_bmp_header.biPlanes = 1;
80 instance -> win32_driver_bmpinfo.gx_bmp_header.biBitCount = 16;
81 instance -> win32_driver_bmpinfo.gx_bmp_header.biSizeImage = display -> gx_display_width * display -> gx_display_height * 2;
82 instance -> win32_driver_bmpinfo.gx_bmp_header.biClrUsed = 65535;
83 instance -> win32_driver_bmpinfo.gx_bmp_header.biClrImportant = 65535;
84 instance -> win32_driver_bmpinfo.gx_bmp_header.biCompression = BI_BITFIELDS;
85
86 putmask = (DWORD *)&(instance -> win32_driver_bmpinfo.gx_bmp_colors[0]);
87
88 *putmask++ = 0x0000f800;
89 *putmask++ = 0x000007e0;
90 *putmask = 0x0000001f;
91 }
92
93 /**************************************************************************/
94 /* */
95 /* FUNCTION RELEASE */
96 /* */
97 /* win32_chromart_graphics_driver_setup_565rgb PORTABLE C */
98 /* 6.1.10 */
99 /* AUTHOR */
100 /* */
101 /* Kenneth Maxwell, Microsoft Corporation */
102 /* */
103 /* DESCRIPTION */
104 /* */
105 /* This function creates a Windows specific 565rgb chromart simulation */
106 /* display driver. */
107 /* */
108 /* INPUT */
109 /* */
110 /* display Pointer to GX_DISPLAY */
111 /* */
112 /* OUTPUT */
113 /* */
114 /* status Completion status */
115 /* */
116 /* CALLS */
117 /* */
118 /* _gx_chromart_simulation_display_driver_565rgb_setup */
119 /* guix display setup funciton. */
120 /* win32_chromart_simulation_565rgb_bitmap_header_create */
121 /* Create bitmap header info */
122 /* gx_win32_get_free_data_instance Get display data instance */
123 /* GX_WIN32_EVENT_THREAD_CREATE Create event thread */
124 /* */
125 /* CALLED BY */
126 /* */
127 /* Application Code */
128 /* */
129 /* RELEASE HISTORY */
130 /* */
131 /* DATE NAME DESCRIPTION */
132 /* */
133 /* 12-31-2020 Kenneth Maxwell Initial Version 6.1.3 */
134 /* 01-31-2022 Ting Zhu Modified comment(s), */
135 /* improved logic, */
136 /* resulting in version 6.1.10 */
137 /* */
138 /**************************************************************************/
win32_chromeart_graphics_driver_setup_565rgb(GX_DISPLAY * display)139 UINT win32_chromeart_graphics_driver_setup_565rgb(GX_DISPLAY *display)
140 {
141 GX_WIN32_DISPLAY_DRIVER_DATA *data;
142
143 /* Initialize the low-level drawing function pointers.
144
145 For windows, these are always just the generic funcions,
146 but for some hardware, these will be customized,
147 optimized functions specific to that hardware. */
148
149 data = gx_win32_get_free_data_instance();
150 if (!data)
151 {
152 /* We don't have any free display data instance. */
153 return(GX_FAILURE);
154 }
155
156 /* Set display color format type. */
157 data -> win32_driver_type = GX_COLOR_FORMAT_565RGB;
158
159 _gx_chromart_simulation_display_driver_565rgb_setup(display, data, gx_win32_display_buffer_toggle);
160
161 win32_565rgb_bitmap_header_create(display);
162
163 /* Create the GUIX / Windows event thread
164 This thread is a substitute for a touch display
165 or keyboard driver thread that would be running
166 on embedded hardware. */
167 GX_WIN32_EVENT_THREAD_CREATE(data, "GUI-WIN32-565rgb");
168
169 return(GX_SUCCESS);
170 }
171 #endif /* WIN32 */
172
173
