summaryrefslogtreecommitdiffstats
path: root/apps/plugins/test_grey.c
blob: be28bedfb37057470e376895fbfd15e8bd6af384 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2008 Jens Arnold
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/
#include "plugin.h"
#include "lib/grey.h"
#include "lib/helper.h"

PLUGIN_HEADER

#if (CONFIG_KEYPAD == IPOD_4G_PAD) || (CONFIG_KEYPAD == IPOD_3G_PAD) \
 || (CONFIG_KEYPAD == IPOD_1G2G_PAD)
#define GREY_QUIT BUTTON_MENU
#define GREY_OK   BUTTON_SELECT
#define GREY_PREV BUTTON_LEFT
#define GREY_NEXT BUTTON_RIGHT
#define GREY_UP   BUTTON_SCROLL_FWD
#define GREY_DOWN BUTTON_SCROLL_BACK

#elif CONFIG_KEYPAD == IRIVER_H100_PAD
#define GREY_QUIT BUTTON_OFF
#define GREY_OK   BUTTON_SELECT
#define GREY_PREV BUTTON_LEFT
#define GREY_NEXT BUTTON_RIGHT
#define GREY_UP   BUTTON_UP
#define GREY_DOWN BUTTON_DOWN

#elif CONFIG_KEYPAD == RECORDER_PAD
#define GREY_QUIT BUTTON_OFF
#define GREY_OK   BUTTON_PLAY
#define GREY_PREV BUTTON_LEFT
#define GREY_NEXT BUTTON_RIGHT
#define GREY_UP   BUTTON_UP
#define GREY_DOWN BUTTON_DOWN

#elif CONFIG_KEYPAD == ONDIO_PAD
#define GREY_QUIT BUTTON_OFF
#define GREY_OK   BUTTON_MENU
#define GREY_PREV BUTTON_LEFT
#define GREY_NEXT BUTTON_RIGHT
#define GREY_UP   BUTTON_UP
#define GREY_DOWN BUTTON_DOWN

#elif (CONFIG_KEYPAD == IAUDIO_X5M5_PAD) \
   || (CONFIG_KEYPAD == MROBE100_PAD) \
   || (CONFIG_KEYPAD == SANSA_CLIP_PAD)
#define GREY_QUIT BUTTON_POWER
#define GREY_OK   BUTTON_SELECT
#define GREY_PREV BUTTON_LEFT
#define GREY_NEXT BUTTON_RIGHT
#define GREY_UP   BUTTON_UP
#define GREY_DOWN BUTTON_DOWN

#elif CONFIG_KEYPAD == IAUDIO_M3_PAD
#define GREY_QUIT BUTTON_RC_REC
#define GREY_OK   BUTTON_RC_PLAY
#define GREY_PREV BUTTON_RC_REW
#define GREY_NEXT BUTTON_RC_FF
#define GREY_UP   BUTTON_RC_VOL_UP
#define GREY_DOWN BUTTON_RC_VOL_DOWN

#elif CONFIG_KEYPAD == SAMSUNG_YH_PAD
#define GREY_QUIT BUTTON_REC
#define GREY_OK   BUTTON_PLAY
#define GREY_PREV BUTTON_LEFT
#define GREY_NEXT BUTTON_RIGHT
#define GREY_UP   BUTTON_UP
#define GREY_DOWN BUTTON_DOWN

#elif CONFIG_KEYPAD == MPIO_HD200_PAD
#define GREY_QUIT (BUTTON_REC|BUTTON_PLAY)
#define GREY_OK   BUTTON_SELECT
#define GREY_PREV BUTTON_PREV
#define GREY_NEXT BUTTON_NEXT
#define GREY_UP   BUTTON_VOL_UP
#define GREY_DOWN BUTTON_VOL_DOWN

#else
#error unsupported keypad
#endif

#define BLOCK_WIDTH  (LCD_WIDTH/8)
#define BLOCK_HEIGHT (LCD_HEIGHT/8)

#define STEPS 16

GREY_INFO_STRUCT

static const unsigned char dither_matrix[16][16] = {
    {   0,192, 48,240, 12,204, 60,252,  3,195, 51,243, 15,207, 63,255 },
    { 128, 64,176,112,140, 76,188,124,131, 67,179,115,143, 79,191,127 },
    {  32,224, 16,208, 44,236, 28,220, 35,227, 19,211, 47,239, 31,223 },
    { 160, 96,144, 80,172,108,156, 92,163, 99,147, 83,175,111,159, 95 },
    {   8,200, 56,248,  4,196, 52,244, 11,203, 59,251,  7,199, 55,247 },
    { 136, 72,184,120,132, 68,180,116,139, 75,187,123,135, 71,183,119 },
    {  40,232, 24,216, 36,228, 20,212, 43,235, 27,219, 39,231, 23,215 },
    { 168,104,152, 88,164,100,148, 84,171,107,155, 91,167,103,151, 87 },
    {   2,194, 50,242, 14,206, 62,254,  1,193, 49,241, 13,205, 61,253 },
    { 130, 66,178,114,142, 78,190,126,129, 65,177,113,141, 77,189,125 },
    {  34,226, 18,210, 46,238, 30,222, 33,225, 17,209, 45,237, 29,221 },
    { 162, 98,146, 82,174,110,158, 94,161, 97,145, 81,173,109,157, 93 },
    {  10,202, 58,250,  6,198, 54,246,  9,201, 57,249,  5,197, 53,245 },
    { 138, 74,186,122,134, 70,182,118,137, 73,185,121,133, 69,181,117 },
    {  42,234, 26,218, 38,230, 22,214, 41,233, 25,217, 37,229, 21,213 },
    { 170,106,154, 90,166,102,150, 86,169,105,153, 89,165,101,149, 85 }
};

static unsigned char input_levels[STEPS+1];
static unsigned char lcd_levels[STEPS+1];

static unsigned char *gbuf;
static size_t gbuf_size = 0;

static void fill_rastered(int bx, int by, int bw, int bh, int step)
{
    int x, xmax, y, ymax;
    int level;
    
    if (step < 0)
        step = 0;
    else if (step > STEPS)
        step = STEPS;
        
    level = input_levels[step];
    level += (level-1) >> 7;

    for (y = (LCD_HEIGHT/2) + by * BLOCK_HEIGHT, ymax = y + bh * BLOCK_HEIGHT;
         y < ymax; y++)
    {
        for (x = (LCD_WIDTH/2) + bx * BLOCK_WIDTH, xmax = x + bw * BLOCK_WIDTH;
             x < xmax; x++)
        {
            grey_set_foreground((level > dither_matrix[y & 0xf][x & 0xf])
                                ? 255 : 0);
            grey_drawpixel(x, y);
        }
    }
}

/* plugin entry point */
enum plugin_status plugin_start(const void* parameter)
{
    bool done = false;
    int cur_step = 1;
    int button, i, l, fd;
    unsigned char filename[MAX_PATH];

    /* standard stuff */
    (void)parameter;
    
    gbuf = (unsigned char *) rb->plugin_get_buffer(&gbuf_size);

    if (!grey_init(gbuf, gbuf_size,
                   GREY_BUFFERED|GREY_RAWMAPPED|GREY_ON_COP,
                   LCD_WIDTH, LCD_HEIGHT, NULL))
    {
        rb->splash(HZ, "Not enough memory.");
        return PLUGIN_ERROR;
    }
    for (i = 0; i <= STEPS; i++)
        input_levels[i] = lcd_levels[i] = (255 * i + (STEPS/2)) / STEPS;

    backlight_force_on(); /* backlight control in lib/helper.c */

    grey_set_background(0); /* set background to black */
    grey_clear_display();
    grey_show(true);

    while (!done)
    {
        fill_rastered(-3, -3, 2, 2, cur_step - 1);
        fill_rastered(-1, -3, 2, 2, cur_step);
        fill_rastered(1, -3, 2, 2, cur_step + 1);
        fill_rastered(-3, -1, 2, 2, cur_step);
        grey_set_foreground(lcd_levels[cur_step]);
        grey_fillrect(LCD_WIDTH/2-BLOCK_WIDTH, LCD_HEIGHT/2-BLOCK_HEIGHT,
                      2*BLOCK_WIDTH, 2*BLOCK_HEIGHT);
        fill_rastered(1, -1, 2, 2, cur_step);
        fill_rastered(-3, 1, 2, 2, cur_step + 1);
        fill_rastered(-1, 1, 2, 2, cur_step);
        fill_rastered(1, 1, 2, 2, cur_step - 1);
        grey_update();

        button = rb->button_get(true);
        switch (button)
        {
            case GREY_PREV:
                if (cur_step > 0)
                    cur_step--;
                break;

            case GREY_NEXT:
                if (cur_step < STEPS)
                    cur_step++;
                break;

            case GREY_UP:
            case GREY_UP|BUTTON_REPEAT:
                l = lcd_levels[cur_step];
                if (l < 255)
                {
                    l++;
                    for (i = cur_step; i <= STEPS; i++)
                        if (lcd_levels[i] < l)
                            lcd_levels[i] = l;
                }
                break;

            case GREY_DOWN:
            case GREY_DOWN|BUTTON_REPEAT:
                l = lcd_levels[cur_step];
                if (l > 0)
                {
                    l--;
                    for (i = cur_step; i >= 0; i--)
                        if (lcd_levels[i] > l)
                            lcd_levels[i] = l;
                }
                break;
                
            case GREY_OK:
                rb->create_numbered_filename(filename, "/", "test_grey_",
                                             ".txt", 2 IF_CNFN_NUM_(, NULL));
                fd = rb->open(filename, O_RDWR|O_CREAT|O_TRUNC, 0666);
                if (fd >= 0)
                {
                    for (i = 0; i <= STEPS; i++)
                         rb->fdprintf(fd, "%3d: %3d\n", input_levels[i],
                                      lcd_levels[i]);
                    rb->close(fd);
                }
                /* fall through */

            case GREY_QUIT:
                done = true;
                break;
        }
    }

    grey_release();
    backlight_use_settings(); /* backlight control in lib/helper.c */
    return PLUGIN_OK;
}