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 |
|
|
#define GX_SOURCE_CODE |
21 |
|
|
/* Include necessary system files. */ |
22 |
|
|
|
23 |
|
|
#include "gx_api.h" |
24 |
|
|
#include "gx_display.h" |
25 |
|
|
|
26 |
|
|
/**************************************************************************/ |
27 |
|
|
/* */ |
28 |
|
|
/* FUNCTION RELEASE */ |
29 |
|
|
/* */ |
30 |
|
|
/* _gx_display_driver_8bpp_horizontal_line_draw PORTABLE C */ |
31 |
|
|
/* 6.1 */ |
32 |
|
|
/* AUTHOR */ |
33 |
|
|
/* */ |
34 |
|
|
/* Kenneth Maxwell, Microsoft Corporation */ |
35 |
|
|
/* */ |
36 |
|
|
/* DESCRIPTION */ |
37 |
|
|
/* */ |
38 |
|
|
/* Generic 8bpp color format horizontal line draw function. */ |
39 |
|
|
/* */ |
40 |
|
|
/* INPUT */ |
41 |
|
|
/* */ |
42 |
|
|
/* context Drawing context */ |
43 |
|
|
/* xstart x-coord of left endpoint */ |
44 |
|
|
/* xend x-coord of right endpoint */ |
45 |
|
|
/* ypos y-coord of line top */ |
46 |
|
|
/* width Width (height) of the line */ |
47 |
|
|
/* color Color of line to write */ |
48 |
|
|
/* */ |
49 |
|
|
/* OUTPUT */ |
50 |
|
|
/* */ |
51 |
|
|
/* NOne */ |
52 |
|
|
/* */ |
53 |
|
|
/* CALLS */ |
54 |
|
|
/* */ |
55 |
|
|
/* _gx_display_driver_horizontal_line_alpha_draw */ |
56 |
|
|
/* Basic display driver */ |
57 |
|
|
/* horizontal line alpha draw */ |
58 |
|
|
/* function. */ |
59 |
|
|
/* */ |
60 |
|
|
/* CALLED BY */ |
61 |
|
|
/* */ |
62 |
|
|
/* GUIX Internal Code */ |
63 |
|
|
/* */ |
64 |
|
|
/* RELEASE HISTORY */ |
65 |
|
|
/* */ |
66 |
|
|
/* DATE NAME DESCRIPTION */ |
67 |
|
|
/* */ |
68 |
|
|
/* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */ |
69 |
|
|
/* 09-30-2020 Kenneth Maxwell Modified comment(s), */ |
70 |
|
|
/* resulting in version 6.1 */ |
71 |
|
|
/* */ |
72 |
|
|
/**************************************************************************/ |
73 |
|
1312108 |
VOID _gx_display_driver_8bpp_horizontal_line_draw(GX_DRAW_CONTEXT *context, INT xstart, INT xend, INT ypos, INT width, GX_COLOR color) |
74 |
|
|
{ |
75 |
|
|
INT row; |
76 |
|
|
INT column; |
77 |
|
|
GX_UBYTE *put; |
78 |
|
|
GX_UBYTE *rowstart; |
79 |
|
1312108 |
INT len = xend - xstart + 1; |
80 |
|
|
|
81 |
|
|
#if defined GX_BRUSH_ALPHA_SUPPORT |
82 |
|
|
GX_UBYTE alpha; |
83 |
|
|
|
84 |
|
1312108 |
alpha = context -> gx_draw_context_brush.gx_brush_alpha; |
85 |
✓✓ |
1312108 |
if (alpha == 0) |
86 |
|
|
{ |
87 |
|
|
/* Nothing to drawn. Just return. */ |
88 |
|
6235 |
return; |
89 |
|
|
} |
90 |
|
|
|
91 |
✓✓ |
1305873 |
if (alpha != 0xff) |
92 |
|
|
{ |
93 |
✓✓ |
6307 |
if (context -> gx_draw_context_display -> gx_display_color_format != GX_COLOR_FORMAT_8BIT_PACKED_PIXEL) |
94 |
|
|
{ |
95 |
|
|
/* Alpha blend is not supported for palette driver. */ |
96 |
|
6 |
return; |
97 |
|
|
} |
98 |
|
|
|
99 |
|
6301 |
_gx_display_driver_horizontal_line_alpha_draw(context, xstart, xend, ypos, width, color, alpha); |
100 |
|
6301 |
return; |
101 |
|
|
} |
102 |
|
|
#endif |
103 |
|
|
|
104 |
|
|
/* pick up start address of canvas memory */ |
105 |
|
1299566 |
rowstart = (GX_UBYTE *)context -> gx_draw_context_memory; |
106 |
|
|
|
107 |
|
|
/* calculate start of row address */ |
108 |
|
1299566 |
rowstart += context -> gx_draw_context_pitch * ypos; |
109 |
|
|
|
110 |
|
|
/* calculate pixel address */ |
111 |
|
1299566 |
rowstart += xstart; |
112 |
|
|
/* draw 1-pixel hi lines to fill width */ |
113 |
✓✓ |
17329971 |
for (row = 0; row < width; row++) |
114 |
|
|
{ |
115 |
|
16030405 |
put = rowstart; |
116 |
|
|
|
117 |
|
|
/* draw one line, left to right */ |
118 |
✓✓ |
5269729242 |
for (column = 0; column < len; column++) |
119 |
|
|
{ |
120 |
|
5253698837 |
*put++ = (GX_UBYTE)color; |
121 |
|
|
} |
122 |
|
16030405 |
rowstart += context -> gx_draw_context_pitch; |
123 |
|
|
} |
124 |
|
|
} |