diff options
Diffstat (limited to 'payloads/libpayload/curses/PDCurses-3.4/os2/pdcscrn.c')
| -rw-r--r-- | payloads/libpayload/curses/PDCurses-3.4/os2/pdcscrn.c | 422 |
1 files changed, 422 insertions, 0 deletions
diff --git a/payloads/libpayload/curses/PDCurses-3.4/os2/pdcscrn.c b/payloads/libpayload/curses/PDCurses-3.4/os2/pdcscrn.c new file mode 100644 index 0000000000..e2d68faa03 --- /dev/null +++ b/payloads/libpayload/curses/PDCurses-3.4/os2/pdcscrn.c @@ -0,0 +1,422 @@ +/* Public Domain Curses */ + +#include "pdcos2.h" + +RCSID("$Id: pdcscrn.c,v 1.76 2008/07/14 04:24:51 wmcbrine Exp $") + +#ifdef CHTYPE_LONG +# define PDC_OFFSET 32 +#else +# define PDC_OFFSET 8 +#endif + +/* COLOR_PAIR to attribute encoding table. */ + +unsigned char *pdc_atrtab = (unsigned char *)NULL; + +int pdc_font; /* default font size */ + +static short curstoreal[16], realtocurs[16] = +{ + COLOR_BLACK, COLOR_BLUE, COLOR_GREEN, COLOR_CYAN, COLOR_RED, + COLOR_MAGENTA, COLOR_YELLOW, COLOR_WHITE, COLOR_BLACK + 8, + COLOR_BLUE + 8, COLOR_GREEN + 8, COLOR_CYAN + 8, COLOR_RED + 8, + COLOR_MAGENTA + 8, COLOR_YELLOW + 8, COLOR_WHITE + 8 +}; + +#ifdef EMXVIDEO +static unsigned char *saved_screen = NULL; +static int saved_lines = 0; +static int saved_cols = 0; +#else +# ifdef PDCTHUNK +# ifdef __EMX__ +# define THUNKEDVIO VIOCOLORREG +# else + +typedef struct { + USHORT cb; + USHORT type; + USHORT firstcolorreg; + USHORT numcolorregs; + ptr_16 colorregaddr; +} THUNKEDVIO; + +# endif +# endif + +static PCH saved_screen = NULL; +static USHORT saved_lines = 0; +static USHORT saved_cols = 0; +static VIOMODEINFO scrnmode; /* default screen mode */ +static VIOMODEINFO saved_scrnmode[3]; +static int saved_font[3]; +static bool can_change = FALSE; + +static int _get_font(void) +{ + VIOMODEINFO modeInfo = {0}; + + modeInfo.cb = sizeof(modeInfo); + + VioGetMode(&modeInfo, 0); + return (modeInfo.vres / modeInfo.row); +} + +static void _set_font(int size) +{ + VIOMODEINFO modeInfo = {0}; + + if (pdc_font != size) + { + modeInfo.cb = sizeof(modeInfo); + + /* set most parameters of modeInfo */ + + VioGetMode(&modeInfo, 0); + modeInfo.cb = 8; /* ignore horiz an vert resolution */ + modeInfo.row = modeInfo.vres / size; + VioSetMode(&modeInfo, 0); + } + + curs_set(SP->visibility); + + pdc_font = _get_font(); +} + +#endif + +/* close the physical screen -- may restore the screen to its state + before PDC_scr_open(); miscellaneous cleanup */ + +void PDC_scr_close(void) +{ + PDC_LOG(("PDC_scr_close() - called\n")); + + if (saved_screen && getenv("PDC_RESTORE_SCREEN")) + { +#ifdef EMXVIDEO + v_putline(saved_screen, 0, 0, saved_lines * saved_cols); +#else + VioWrtCellStr(saved_screen, saved_lines * saved_cols * 2, + 0, 0, (HVIO)NULL); +#endif + free(saved_screen); + saved_screen = NULL; + } + + reset_shell_mode(); + + if (SP->visibility != 1) + curs_set(1); + + /* Position cursor to the bottom left of the screen. */ + + PDC_gotoyx(PDC_get_rows() - 2, 0); +} + +void PDC_scr_free(void) +{ + if (SP) + free(SP); + if (pdc_atrtab) + free(pdc_atrtab); + + pdc_atrtab = (unsigned char *)NULL; +} + +/* open the physical screen -- allocate SP, miscellaneous intialization, + and may save the existing screen for later restoration */ + +int PDC_scr_open(int argc, char **argv) +{ +#ifdef EMXVIDEO + int adapter; +#else + USHORT totchars; +#endif + int i; + short r, g, b; + + PDC_LOG(("PDC_scr_open() - called\n")); + + SP = calloc(1, sizeof(SCREEN)); + pdc_atrtab = calloc(PDC_COLOR_PAIRS * PDC_OFFSET, 1); + + if (!SP || !pdc_atrtab) + return ERR; + + for (i = 0; i < 16; i++) + curstoreal[realtocurs[i]] = i; + +#ifdef EMXVIDEO + v_init(); +#endif + SP->orig_attr = FALSE; + +#ifdef EMXVIDEO + adapter = v_hardware(); + SP->mono = (adapter == V_MONOCHROME); + + pdc_font = SP->mono ? 14 : (adapter == V_COLOR_8) ? 8 : 12; +#else + VioGetMode(&scrnmode, 0); + PDC_get_keyboard_info(); + + pdc_font = _get_font(); +#endif + SP->lines = PDC_get_rows(); + SP->cols = PDC_get_columns(); + + SP->mouse_wait = PDC_CLICK_PERIOD; + SP->audible = TRUE; + + /* This code for preserving the current screen */ + + if (getenv("PDC_RESTORE_SCREEN")) + { + saved_lines = SP->lines; + saved_cols = SP->cols; + + saved_screen = malloc(2 * saved_lines * saved_cols); + + if (!saved_screen) + { + SP->_preserve = FALSE; + return OK; + } +#ifdef EMXVIDEO + v_getline(saved_screen, 0, 0, saved_lines * saved_cols); +#else + totchars = saved_lines * saved_cols * 2; + VioReadCellStr((PCH)saved_screen, &totchars, 0, 0, (HVIO)NULL); +#endif + } + + SP->_preserve = (getenv("PDC_PRESERVE_SCREEN") != NULL); + + can_change = (PDC_color_content(0, &r, &g, &b) == OK); + + return OK; +} + +/* the core of resize_term() */ + +int PDC_resize_screen(int nlines, int ncols) +{ +#ifndef EMXVIDEO + VIOMODEINFO modeInfo = {0}; + USHORT result; +#endif + + PDC_LOG(("PDC_resize_screen() - called. Lines: %d Cols: %d\n", + nlines, ncols)); + +#ifdef EMXVIDEO + return ERR; +#else + modeInfo.cb = sizeof(modeInfo); + + /* set most parameters of modeInfo */ + + VioGetMode(&modeInfo, 0); + modeInfo.fbType = 1; + modeInfo.row = nlines; + modeInfo.col = ncols; + result = VioSetMode(&modeInfo, 0); + + LINES = PDC_get_rows(); + COLS = PDC_get_columns(); + + return (result == 0) ? OK : ERR; +#endif +} + +void PDC_reset_prog_mode(void) +{ + PDC_LOG(("PDC_reset_prog_mode() - called.\n")); + +#ifndef EMXVIDEO + PDC_set_keyboard_binary(TRUE); +#endif +} + +void PDC_reset_shell_mode(void) +{ + PDC_LOG(("PDC_reset_shell_mode() - called.\n")); + +#ifndef EMXVIDEO + PDC_set_keyboard_default(); +#endif +} + +#ifndef EMXVIDEO + +static bool _screen_mode_equals(VIOMODEINFO *oldmode) +{ + VIOMODEINFO current = {0}; + + VioGetMode(¤t, 0); + + return ((current.cb == oldmode->cb) && + (current.fbType == oldmode->fbType) && + (current.color == oldmode->color) && + (current.col == oldmode->col) && + (current.row == oldmode->row) && + (current.hres == oldmode->vres) && + (current.vres == oldmode->vres)); +} + +#endif + +void PDC_restore_screen_mode(int i) +{ +#ifndef EMXVIDEO + if (i >= 0 && i <= 2) + { + pdc_font = _get_font(); + _set_font(saved_font[i]); + + if (!_screen_mode_equals(&saved_scrnmode[i])) + if (VioSetMode(&saved_scrnmode[i], 0) != 0) + { + pdc_font = _get_font(); + scrnmode = saved_scrnmode[i]; + LINES = PDC_get_rows(); + COLS = PDC_get_columns(); + } + } +#endif +} + +void PDC_save_screen_mode(int i) +{ +#ifndef EMXVIDEO + if (i >= 0 && i <= 2) + { + saved_font[i] = pdc_font; + saved_scrnmode[i] = scrnmode; + } +#endif +} + +void PDC_init_pair(short pair, short fg, short bg) +{ + unsigned char att, temp_bg; + chtype i; + + fg = curstoreal[fg]; + bg = curstoreal[bg]; + + for (i = 0; i < PDC_OFFSET; i++) + { + att = fg | (bg << 4); + + if (i & (A_REVERSE >> PDC_ATTR_SHIFT)) + att = bg | (fg << 4); + if (i & (A_UNDERLINE >> PDC_ATTR_SHIFT)) + att = 1; + if (i & (A_INVIS >> PDC_ATTR_SHIFT)) + { + temp_bg = att >> 4; + att = temp_bg << 4 | temp_bg; + } + if (i & (A_BOLD >> PDC_ATTR_SHIFT)) + att |= 8; + if (i & (A_BLINK >> PDC_ATTR_SHIFT)) + att |= 128; + + pdc_atrtab[pair * PDC_OFFSET + i] = att; + } +} + +int PDC_pair_content(short pair, short *fg, short *bg) +{ + *fg = realtocurs[pdc_atrtab[pair * PDC_OFFSET] & 0x0F]; + *bg = realtocurs[(pdc_atrtab[pair * PDC_OFFSET] & 0xF0) >> 4]; + + return OK; +} + +bool PDC_can_change_color(void) +{ + return can_change; +} + +int PDC_color_content(short color, short *red, short *green, short *blue) +{ +#ifdef PDCTHUNK + THUNKEDVIO vcr; + USHORT palbuf[4]; + unsigned char pal[3]; + int rc; + + /* Read single DAC register */ + + palbuf[0] = 8; + palbuf[1] = 0; + palbuf[2] = curstoreal[color]; + + rc = VioGetState(&palbuf, 0); + if (rc) + return ERR; + + vcr.cb = sizeof(vcr); + vcr.type = 3; + vcr.firstcolorreg = palbuf[3]; + vcr.numcolorregs = 1; + vcr.colorregaddr = PDCTHUNK(pal); + + rc = VioGetState(&vcr, 0); + if (rc) + return ERR; + + /* Scale and store */ + + *red = DIVROUND((unsigned)(pal[0]) * 1000, 63); + *green = DIVROUND((unsigned)(pal[1]) * 1000, 63); + *blue = DIVROUND((unsigned)(pal[2]) * 1000, 63); + + return OK; +#else + return ERR; +#endif +} + +int PDC_init_color(short color, short red, short green, short blue) +{ +#ifdef PDCTHUNK + THUNKEDVIO vcr; + USHORT palbuf[4]; + unsigned char pal[3]; + int rc; + + /* Scale */ + + pal[0] = DIVROUND((unsigned)red * 63, 1000); + pal[1] = DIVROUND((unsigned)green * 63, 1000); + pal[2] = DIVROUND((unsigned)blue * 63, 1000); + + /* Set single DAC register */ + + palbuf[0] = 8; + palbuf[1] = 0; + palbuf[2] = curstoreal[color]; + + rc = VioGetState(&palbuf, 0); + if (rc) + return ERR; + + vcr.cb = sizeof(vcr); + vcr.type = 3; + vcr.firstcolorreg = palbuf[3]; + vcr.numcolorregs = 1; + vcr.colorregaddr = PDCTHUNK(pal); + + rc = VioSetState(&vcr, 0); + + return rc ? ERR : OK; +#else + return ERR; +#endif +} |