diff options
Diffstat (limited to 'uisimulator/sdl/lcd-charcell.c')
| -rw-r--r-- | uisimulator/sdl/lcd-charcell.c | 89 |
1 files changed, 88 insertions, 1 deletions
diff --git a/uisimulator/sdl/lcd-charcell.c b/uisimulator/sdl/lcd-charcell.c index 89c46f7738..9cc53381c6 100644 --- a/uisimulator/sdl/lcd-charcell.c +++ b/uisimulator/sdl/lcd-charcell.c @@ -17,11 +17,20 @@ * ****************************************************************************/ +#include "debug.h" #include "lcd.h" +#include "misc.h" +#include <string.h> + #include "lcd-playersim.h" #include "uisdl.h" #include "lcd-sdl.h" +/* extern functions, needed for screendump() */ +extern int sim_creat(const char *name, mode_t mode); +extern ssize_t write(int fd, const void *buf, size_t count); +extern int close(int fd); + SDL_Surface* lcd_surface; SDL_Color lcd_color_zero = {UI_LCD_BGCOLOR, 0}; SDL_Color lcd_backlight_color_zero = {UI_LCD_BGCOLORLIGHT, 0}; @@ -126,7 +135,85 @@ void sim_lcd_init(void) lcd_surface = SDL_CreateRGBSurface(SDL_SWSURFACE, LCD_WIDTH * display_zoom, LCD_HEIGHT * display_zoom, 8, 0, 0, 0, 0); - sdl_set_gradient(lcd_surface, &lcd_backlight_color_zero, &lcd_color_max, + 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 (((LCD_WIDTH + 31) / 32) * 4) + +#define BMP_HEADERSIZE (54 + 4 * BMP_NUMCOLORS) +#define BMP_DATASIZE (BMP_LINESIZE * 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(LCD_WIDTH), /* Width in pixels */ + LE32_CONST(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); + DEBUGF("screen_dump\n"); + + fd = sim_creat(filename, 1 /*O_WRONLY*/); + if (fd < 0) + return; + + write(fd, bmpheader, sizeof(bmpheader)); + SDL_LockSurface(lcd_surface); + + /* BMP image goes bottom up */ + for (y = LCD_HEIGHT - 1; y >= 0; y--) + { + Uint8 *src = (Uint8 *)lcd_surface->pixels + + y * LCD_WIDTH * display_zoom * display_zoom; + unsigned char *dst = line; + unsigned dst_mask = 0x80; + + memset(line, 0, sizeof(line)); + for (x = 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); +} |