1 |
|
|
/*************************************************************************** |
2 |
|
|
* Copyright (c) 2024 Microsoft Corporation |
3 |
|
|
* Copyright (c) 2026-present Eclipse ThreadX contributors |
4 |
|
|
* |
5 |
|
|
* This program and the accompanying materials are made available under the |
6 |
|
|
* terms of the MIT License which is available at |
7 |
|
|
* https://opensource.org/licenses/MIT. |
8 |
|
|
* |
9 |
|
|
* SPDX-License-Identifier: MIT |
10 |
|
|
**************************************************************************/ |
11 |
|
|
|
12 |
|
|
|
13 |
|
|
/**************************************************************************/ |
14 |
|
|
/**************************************************************************/ |
15 |
|
|
/** */ |
16 |
|
|
/** GUIX Component */ |
17 |
|
|
/** */ |
18 |
|
|
/** Display Management (Display) */ |
19 |
|
|
/** */ |
20 |
|
|
/**************************************************************************/ |
21 |
|
|
|
22 |
|
|
#define GX_SOURCE_CODE |
23 |
|
|
|
24 |
|
|
|
25 |
|
|
/* Include necessary system files. */ |
26 |
|
|
|
27 |
|
|
#include "gx_api.h" |
28 |
|
|
#include "gx_utility.h" |
29 |
|
|
#include "gx_display.h" |
30 |
|
|
|
31 |
|
|
|
32 |
|
|
/**************************************************************************/ |
33 |
|
|
/* */ |
34 |
|
|
/* FUNCTION RELEASE */ |
35 |
|
|
/* */ |
36 |
|
|
/* _gx_display_driver_generic_simple_wide_line_draw PORTABLE C */ |
37 |
|
|
/* 6.1.3 */ |
38 |
|
|
/* AUTHOR */ |
39 |
|
|
/* */ |
40 |
|
|
/* Kenneth Maxwell, Microsoft Corporation */ |
41 |
|
|
/* */ |
42 |
|
|
/* DESCRIPTION */ |
43 |
|
|
/* */ |
44 |
|
|
/* Generic display driver function for non-aliased wide line. */ |
45 |
|
|
/* */ |
46 |
|
|
/* INPUT */ |
47 |
|
|
/* */ |
48 |
|
|
/* context Drawing context */ |
49 |
|
|
/* xstart x-coord of endpoint */ |
50 |
|
|
/* ystart y-coord of endpoint */ |
51 |
|
|
/* xend x-coord of endpoint */ |
52 |
|
|
/* yend y-coord of endpoint */ |
53 |
|
|
/* */ |
54 |
|
|
/* OUTPUT */ |
55 |
|
|
/* */ |
56 |
|
|
/* None */ |
57 |
|
|
/* */ |
58 |
|
|
/* CALLS */ |
59 |
|
|
/* */ |
60 |
|
|
/* _gx_display_driver_generic_wide_line_points_calculate */ |
61 |
|
|
/* Calculate corners of wide line*/ |
62 |
|
|
/* _gx_display_driver_generic_filled_circle_draw */ |
63 |
|
|
/* Basic display driver solid */ |
64 |
|
|
/* circle draw function */ |
65 |
|
|
/* _gx_display_driver_generic_wide_line_fill */ |
66 |
|
|
/* Basic display driver wide */ |
67 |
|
|
/* line draw function */ |
68 |
|
|
/* */ |
69 |
|
|
/* CALLED BY */ |
70 |
|
|
/* */ |
71 |
|
|
/* GUIX Internal Code */ |
72 |
|
|
/* */ |
73 |
|
|
/**************************************************************************/ |
74 |
|
8412 |
VOID _gx_display_driver_generic_simple_wide_line_draw(GX_DRAW_CONTEXT *context, INT xstart, INT ystart, |
75 |
|
|
INT xend, INT yend) |
76 |
|
|
{ |
77 |
|
8412 |
GX_DISPLAY *display = context -> gx_draw_context_display; |
78 |
|
|
GX_FIXED_POINT *line_points; |
79 |
|
8412 |
INT brush_width = context -> gx_draw_context_brush.gx_brush_width; |
80 |
|
|
GX_RECTANGLE clip_rect; |
81 |
|
|
GX_FIXED_VAL sxcenter; |
82 |
|
|
GX_FIXED_VAL sycenter; |
83 |
|
|
GX_FIXED_VAL excenter; |
84 |
|
|
GX_FIXED_VAL eycenter; |
85 |
|
|
|
86 |
|
|
#if defined(GX_BRUSH_ALPHA_SUPPORT) |
87 |
|
|
GX_UBYTE old_alpha; |
88 |
|
8412 |
old_alpha = context -> gx_draw_context_brush.gx_brush_alpha; |
89 |
✓✓ |
8412 |
if (context -> gx_draw_context_brush.gx_brush_style & GX_BRUSH_ROUND) |
90 |
|
|
{ |
91 |
|
3689 |
context -> gx_draw_context_brush.gx_brush_alpha = GX_ALPHA_VALUE_OPAQUE; |
92 |
|
|
} |
93 |
|
|
#endif |
94 |
|
|
|
95 |
✓✓✓✓
|
8412 |
if ((context -> gx_draw_context_brush.gx_brush_style & GX_BRUSH_ROUND) && |
96 |
|
|
(brush_width > 2)) |
97 |
|
|
{ |
98 |
|
2954 |
sxcenter = GX_FIXED_VAL_MAKE(xstart); |
99 |
|
2954 |
sycenter = GX_FIXED_VAL_MAKE(ystart); |
100 |
|
2954 |
excenter = GX_FIXED_VAL_MAKE(xend); |
101 |
|
2954 |
eycenter = GX_FIXED_VAL_MAKE(yend); |
102 |
|
|
|
103 |
✓✓ |
2954 |
if (!(brush_width & 0x01)) |
104 |
|
|
{ |
105 |
✓✓ |
966 |
if (ystart == yend) |
106 |
|
|
{ |
107 |
|
|
/* Horizontal line. */ |
108 |
|
153 |
sycenter -= GX_FIXED_VAL_HALF; |
109 |
|
153 |
eycenter -= GX_FIXED_VAL_HALF; |
110 |
|
|
} |
111 |
✓✓ |
813 |
else if (xstart == xend) |
112 |
|
|
{ |
113 |
|
|
/* Vertical line. */ |
114 |
|
171 |
sxcenter -= GX_FIXED_VAL_HALF; |
115 |
|
171 |
excenter -= GX_FIXED_VAL_HALF; |
116 |
|
|
} |
117 |
|
|
} |
118 |
|
|
|
119 |
|
2954 |
_gx_display_driver_generic_filled_circle_draw(context, sxcenter, sycenter, |
120 |
|
2954 |
GX_FIXED_VAL_MAKE(brush_width) >> 1); |
121 |
|
|
|
122 |
|
2954 |
_gx_display_driver_generic_filled_circle_draw(context, excenter, eycenter, |
123 |
|
2954 |
GX_FIXED_VAL_MAKE(brush_width) >> 1); |
124 |
|
|
} |
125 |
|
|
|
126 |
✓✓ |
8412 |
if (ystart == yend) |
127 |
|
|
{ |
128 |
|
|
/* Horizontal line. */ |
129 |
|
|
|
130 |
✓✓ |
521 |
if (xstart > xend) |
131 |
|
|
{ |
132 |
|
175 |
GX_SWAP_VALS(xstart, xend); |
133 |
|
|
} |
134 |
|
|
|
135 |
|
521 |
clip_rect.gx_rectangle_left = (GX_VALUE)xstart; |
136 |
|
521 |
clip_rect.gx_rectangle_right = (GX_VALUE)xend; |
137 |
|
521 |
clip_rect.gx_rectangle_top = (GX_VALUE)(ystart - (brush_width >> 1)); |
138 |
|
521 |
clip_rect.gx_rectangle_bottom = (GX_VALUE)(clip_rect.gx_rectangle_top + brush_width - 1); |
139 |
|
|
|
140 |
✓✓ |
521 |
if (_gx_utility_rectangle_overlap_detect(&clip_rect, context -> gx_draw_context_clip, &clip_rect)) |
141 |
|
|
{ |
142 |
|
495 |
display -> gx_display_driver_horizontal_line_draw(context, |
143 |
|
495 |
clip_rect.gx_rectangle_left, |
144 |
|
495 |
clip_rect.gx_rectangle_right, |
145 |
|
495 |
clip_rect.gx_rectangle_top, |
146 |
|
495 |
clip_rect.gx_rectangle_bottom - clip_rect.gx_rectangle_top + 1, |
147 |
|
|
context -> gx_draw_context_brush.gx_brush_line_color); |
148 |
|
|
} |
149 |
|
|
} |
150 |
✓✓ |
7891 |
else if (xstart == xend) |
151 |
|
|
{ |
152 |
|
|
/* Vertical line. */ |
153 |
|
|
|
154 |
✓✓ |
540 |
if (ystart > yend) |
155 |
|
|
{ |
156 |
|
269 |
GX_SWAP_VALS(ystart, yend); |
157 |
|
|
} |
158 |
|
|
|
159 |
|
540 |
clip_rect.gx_rectangle_left = (GX_VALUE)(xstart - (brush_width >> 1)); |
160 |
|
540 |
clip_rect.gx_rectangle_right = (GX_VALUE)(clip_rect.gx_rectangle_left + brush_width - 1); |
161 |
|
540 |
clip_rect.gx_rectangle_top = (GX_VALUE)ystart; |
162 |
|
540 |
clip_rect.gx_rectangle_bottom = (GX_VALUE)yend; |
163 |
|
|
|
164 |
✓✓ |
540 |
if (_gx_utility_rectangle_overlap_detect(&clip_rect, context -> gx_draw_context_clip, &clip_rect)) |
165 |
|
|
{ |
166 |
|
504 |
display -> gx_display_driver_vertical_line_draw(context, |
167 |
|
504 |
clip_rect.gx_rectangle_top, |
168 |
|
504 |
clip_rect.gx_rectangle_bottom, |
169 |
|
504 |
clip_rect.gx_rectangle_left, |
170 |
|
504 |
clip_rect.gx_rectangle_right - clip_rect.gx_rectangle_left + 1, |
171 |
|
|
context -> gx_draw_context_brush.gx_brush_line_color); |
172 |
|
|
} |
173 |
|
|
} |
174 |
|
|
else |
175 |
|
|
{ |
176 |
|
|
/* calcualte the corners of this line, save them |
177 |
|
|
to our points array |
178 |
|
|
*/ |
179 |
|
7351 |
line_points = _gx_display_driver_generic_wide_line_points_calculate(context, xstart, ystart, |
180 |
|
|
xend, yend, brush_width, GX_FALSE); |
181 |
✓✓ |
7351 |
if (display -> gx_display_rotation_angle) |
182 |
|
|
{ |
183 |
|
2639 |
_gx_display_driver_generic_rotated_wide_line_fill(context, line_points); |
184 |
|
|
} |
185 |
|
|
else |
186 |
|
|
{ |
187 |
|
4712 |
_gx_display_driver_generic_wide_line_fill(context, line_points); |
188 |
|
|
} |
189 |
|
|
} |
190 |
|
|
#if defined(GX_BRUSH_ALPHA_SUPPORT) |
191 |
|
8412 |
context -> gx_draw_context_brush.gx_brush_alpha = old_alpha; |
192 |
|
|
#endif |
193 |
|
8412 |
} |
194 |
|
|
|