summaryrefslogtreecommitdiffstats
path: root/uisimulator/sdl/lcd-charcells.c
blob: 85ff9678e4c7d3cb77fddaee4009898214c05cf1 (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
/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2006 Dan Everton
 *
 * All files in this archive are subject to the GNU General Public License.
 * See the file COPYING in the source tree root for full license agreement.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/

#include "debug.h"
#include "lcd.h"
#include "lcd-charcell.h"
#include "misc.h"
#include <string.h>
#include <unistd.h>
#include <fcntl.h>

#include "lcd-playersim.h"
#include "uisdl.h"
#include "lcd-sdl.h"

/* extern functions, needed for screendump() */
extern int sim_creat(const char *name);

SDL_Surface* lcd_surface;
SDL_Color lcd_color_zero = {UI_LCD_BGCOLOR, 0};
SDL_Color lcd_backlight_color_zero = {UI_LCD_BGCOLORLIGHT, 0};
SDL_Color lcd_color_max  = {UI_LCD_FGCOLOR, 0};
SDL_Color lcd_backlight_color_max = {UI_LCD_FGCOLORLIGHT, 0};


static unsigned long get_lcd_pixel(int x, int y)
{
    return sim_lcd_framebuffer[y][x];
}

void sim_lcd_update_rect(int x_start, int y_start, int width, int height)
{
    sdl_update_rect(lcd_surface, x_start, y_start, width, height,
                    SIM_LCD_WIDTH, SIM_LCD_HEIGHT, get_lcd_pixel);
    sdl_gui_update(lcd_surface, x_start, y_start, width, height,
                   SIM_LCD_WIDTH, SIM_LCD_HEIGHT,
                   background ? UI_LCD_POSX : 0, background ? UI_LCD_POSY : 0);
}

void lcd_update(void)
{
    int x, y;
    
    for (y = 0; y < lcd_pattern_count; y++)
        if (lcd_patterns[y].count > 0)
            sim_lcd_define_pattern(y, lcd_patterns[y].pattern);
        
    for (y = 0; y < LCD_HEIGHT; y++)
        for (x = 0; x < LCD_WIDTH; x++)
            lcd_print_char(x, y, lcd_charbuffer[y][x]);

    if (lcd_cursor.visible)
        lcd_print_char(lcd_cursor.x, lcd_cursor.y, lcd_cursor.hw_char);

    sim_lcd_update_rect(0, ICON_HEIGHT, SIM_LCD_WIDTH,
                        LCD_HEIGHT*CHAR_HEIGHT*CHAR_PIXEL);
}

#ifdef HAVE_BACKLIGHT
void sim_backlight(int value)
{
    if (value > 0) {
        sdl_set_gradient(lcd_surface, &lcd_backlight_color_zero, 
                                      &lcd_backlight_color_max,
                         0, (1<<LCD_DEPTH));
    } else {
        sdl_set_gradient(lcd_surface, &lcd_color_zero, &lcd_color_max,
                         0, (1<<LCD_DEPTH));
    }

    sim_lcd_update_rect(0, 0, SIM_LCD_WIDTH, SIM_LCD_HEIGHT);
}
#endif

/* initialise simulator lcd driver */
void sim_lcd_init(void)
{
    lcd_surface = SDL_CreateRGBSurface(SDL_SWSURFACE, 
                                       SIM_LCD_WIDTH * display_zoom,
                                       SIM_LCD_HEIGHT * display_zoom,
                                       8, 0, 0, 0, 0);

    sdl_set_gradient(lcd_surface, &lcd_backlight_color_zero, &lcd_color_max,
                     0, (1<<LCD_DEPTH));
}

#define BMP_COMPRESSION 0 /* BI_RGB */
#define BMP_NUMCOLORS (1 << LCD_DEPTH)
#define BMP_BPP 1
#define BMP_LINESIZE (((SIM_LCD_WIDTH + 31) / 32) * 4)

#define BMP_HEADERSIZE (54 + 4 * BMP_NUMCOLORS)
#define BMP_DATASIZE   (BMP_LINESIZE * SIM_LCD_HEIGHT)
#define BMP_TOTALSIZE  (BMP_HEADERSIZE + BMP_DATASIZE)

#define LE16_CONST(x) (x)&0xff, ((x)>>8)&0xff
#define LE32_CONST(x) (x)&0xff, ((x)>>8)&0xff, ((x)>>16)&0xff, ((x)>>24)&0xff

static const unsigned char bmpheader[] =
{
    0x42, 0x4d,                 /* 'BM' */
    LE32_CONST(BMP_TOTALSIZE),  /* Total file size */
    0x00, 0x00, 0x00, 0x00,     /* Reserved */
    LE32_CONST(BMP_HEADERSIZE), /* Offset to start of pixel data */

    0x28, 0x00, 0x00, 0x00,     /* Size of (2nd) header */
    LE32_CONST(SIM_LCD_WIDTH),  /* Width in pixels */
    LE32_CONST(SIM_LCD_HEIGHT), /* Height in pixels */
    0x01, 0x00,                 /* Number of planes (always 1) */
    LE16_CONST(BMP_BPP),        /* Bits per pixel 1/4/8/16/24 */
    LE32_CONST(BMP_COMPRESSION),/* Compression mode */
    LE32_CONST(BMP_DATASIZE),   /* Size of bitmap data */
    0xc4, 0x0e, 0x00, 0x00,     /* Horizontal resolution (pixels/meter) */
    0xc4, 0x0e, 0x00, 0x00,     /* Vertical resolution (pixels/meter) */
    LE32_CONST(BMP_NUMCOLORS),  /* Number of used colours */
    LE32_CONST(BMP_NUMCOLORS),  /* Number of important colours */

    0x90, 0xee, 0x90, 0x00,     /* Colour #0 */
    0x00, 0x00, 0x00, 0x00      /* Colour #1 */
};

void screen_dump(void)
{
    int fd;
    char filename[MAX_PATH];
    int x, y;
    static unsigned char line[BMP_LINESIZE];

    create_numbered_filename(filename, "", "dump_", ".bmp", 4
        IF_CNFN_NUM_(, NULL));
    DEBUGF("screen_dump\n");

    fd = sim_creat(filename);
    if (fd < 0)
        return;

    write(fd, bmpheader, sizeof(bmpheader));
    SDL_LockSurface(lcd_surface);

    /* BMP image goes bottom up */
    for (y = SIM_LCD_HEIGHT - 1; y >= 0; y--)
    {
        Uint8 *src = (Uint8 *)lcd_surface->pixels 
                   + y * SIM_LCD_WIDTH * display_zoom * display_zoom;
        unsigned char *dst = line;
        unsigned dst_mask = 0x80;

        memset(line, 0, sizeof(line));
        for (x = SIM_LCD_WIDTH; x > 0; x--)
        {
            if (*src)
                *dst |= dst_mask;
            src += display_zoom;
            dst_mask >>= 1;
            if (dst_mask == 0)
            {
                dst++;
                dst_mask = 0x80;
            }
        }
        write(fd, line, sizeof(line));
    }
    SDL_UnlockSurface(lcd_surface);
    close(fd);
}