/* Public Domain Curses */ #include "pdcsdl.h" RCSID("$Id: pdcscrn.c,v 1.34 2008/07/14 04:24:52 wmcbrine Exp $") #include <stdlib.h> #include "deffont.h" #include "deficon.h" SDL_Surface *pdc_screen = NULL, *pdc_font = NULL, *pdc_icon = NULL, *pdc_back = NULL, *pdc_tileback = NULL; int pdc_sheight = 0, pdc_swidth = 0, pdc_yoffset = 0, pdc_xoffset = 0; SDL_Color pdc_color[16]; Uint32 pdc_mapped[16]; int pdc_fheight, pdc_fwidth, pdc_flastc; bool pdc_own_screen; /* COLOR_PAIR to attribute encoding table. */ static struct {short f, b;} atrtab[PDC_COLOR_PAIRS]; void PDC_retile(void) { if (pdc_tileback) SDL_FreeSurface(pdc_tileback); pdc_tileback = SDL_DisplayFormat(pdc_screen); if (pdc_back) { SDL_Rect dest; dest.y = 0; while (dest.y < pdc_tileback->h) { dest.x = 0; while (dest.x < pdc_tileback->w) { SDL_BlitSurface(pdc_back, 0, pdc_tileback, &dest); dest.x += pdc_back->w; } dest.y += pdc_back->h; } SDL_BlitSurface(pdc_tileback, 0, pdc_screen, 0); } } void PDC_scr_close(void) { PDC_LOG(("PDC_scr_close() - called\n")); } void PDC_scr_free(void) { if (SP) free(SP); } /* open the physical screen -- allocate SP, miscellaneous intialization */ int PDC_scr_open(int argc, char **argv) { int i; PDC_LOG(("PDC_scr_open() - called\n")); SP = calloc(1, sizeof(SCREEN)); if (!SP) return ERR; pdc_own_screen = !pdc_screen; if (pdc_own_screen) { if (SDL_Init(SDL_INIT_VIDEO|SDL_INIT_TIMER) < 0) { fprintf(stderr, "Could not start SDL: %s\n", SDL_GetError()); return ERR; } atexit(SDL_Quit); } if (!pdc_font) { const char *fname = getenv("PDC_FONT"); pdc_font = SDL_LoadBMP(fname ? fname : "pdcfont.bmp"); } if (!pdc_font) pdc_font = SDL_LoadBMP_RW(SDL_RWFromMem(deffont, sizeof(deffont)), 0); if (!pdc_font) { fprintf(stderr, "Could not load font\n"); return ERR; } SP->mono = !pdc_font->format->palette; if (!SP->mono && !pdc_back) { const char *bname = getenv("PDC_BACKGROUND"); pdc_back = SDL_LoadBMP(bname ? bname : "pdcback.bmp"); } if (!SP->mono && (pdc_back || !pdc_own_screen)) { SP->orig_attr = TRUE; SP->orig_fore = COLOR_WHITE; SP->orig_back = -1; } else SP->orig_attr = FALSE; pdc_fheight = pdc_font->h / 8; pdc_fwidth = pdc_font->w / 32; if (!SP->mono) pdc_flastc = pdc_font->format->palette->ncolors - 1; if (pdc_own_screen && !pdc_icon) { const char *iname = getenv("PDC_ICON"); pdc_icon = SDL_LoadBMP(iname ? iname : "pdcicon.bmp"); if (!pdc_icon) pdc_icon = SDL_LoadBMP_RW(SDL_RWFromMem(deficon, sizeof(deficon)), 0); if (pdc_icon) SDL_WM_SetIcon(pdc_icon, NULL); } if (pdc_own_screen) { const char *env = getenv("PDC_LINES"); pdc_sheight = (env ? atoi(env) : 25) * pdc_fheight; env = getenv("PDC_COLS"); pdc_swidth = (env ? atoi(env) : 80) * pdc_fwidth; pdc_screen = SDL_SetVideoMode(pdc_swidth, pdc_sheight, 0, SDL_SWSURFACE|SDL_ANYFORMAT|SDL_RESIZABLE); } else { if (!pdc_sheight) pdc_sheight = pdc_screen->h - pdc_yoffset; if (!pdc_swidth) pdc_swidth = pdc_screen->w - pdc_xoffset; } if (!pdc_screen) { fprintf(stderr, "Couldn't create a surface: %s\n", SDL_GetError()); return ERR; } if (SP->orig_attr) PDC_retile(); for (i = 0; i < 8; i++) { pdc_color[i].r = (i & COLOR_RED) ? 0xc0 : 0; pdc_color[i].g = (i & COLOR_GREEN) ? 0xc0 : 0; pdc_color[i].b = (i & COLOR_BLUE) ? 0xc0 : 0; pdc_color[i + 8].r = (i & COLOR_RED) ? 0xff : 0x40; pdc_color[i + 8].g = (i & COLOR_GREEN) ? 0xff : 0x40; pdc_color[i + 8].b = (i & COLOR_BLUE) ? 0xff : 0x40; } for (i = 0; i < 16; i++) pdc_mapped[i] = SDL_MapRGB(pdc_screen->format, pdc_color[i].r, pdc_color[i].g, pdc_color[i].b); SDL_EnableUNICODE(1); PDC_mouse_set(); if (pdc_own_screen) PDC_set_title(argc ? argv[0] : "PDCurses"); SP->lines = PDC_get_rows(); SP->cols = PDC_get_columns(); SP->mouse_wait = PDC_CLICK_PERIOD; SP->audible = FALSE; PDC_reset_prog_mode(); return OK; } /* the core of resize_term() */ int PDC_resize_screen(int nlines, int ncols) { if (!pdc_own_screen) return ERR; if (nlines && ncols) { pdc_sheight = nlines * pdc_fheight; pdc_swidth = ncols * pdc_fwidth; } SDL_FreeSurface(pdc_screen); pdc_screen = SDL_SetVideoMode(pdc_swidth, pdc_sheight, 0, SDL_SWSURFACE|SDL_ANYFORMAT|SDL_RESIZABLE); if (pdc_tileback) PDC_retile(); SP->resized = FALSE; SP->cursrow = SP->curscol = 0; return OK; } void PDC_reset_prog_mode(void) { PDC_LOG(("PDC_reset_prog_mode() - called.\n")); PDC_flushinp(); SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL); } void PDC_reset_shell_mode(void) { PDC_LOG(("PDC_reset_shell_mode() - called.\n")); SDL_EnableKeyRepeat(0, 0); PDC_flushinp(); } void PDC_restore_screen_mode(int i) { } void PDC_save_screen_mode(int i) { } void PDC_init_pair(short pair, short fg, short bg) { atrtab[pair].f = fg; atrtab[pair].b = bg; } int PDC_pair_content(short pair, short *fg, short *bg) { *fg = atrtab[pair].f; *bg = atrtab[pair].b; return OK; } bool PDC_can_change_color(void) { return TRUE; } int PDC_color_content(short color, short *red, short *green, short *blue) { *red = DIVROUND(pdc_color[color].r * 1000, 255); *green = DIVROUND(pdc_color[color].g * 1000, 255); *blue = DIVROUND(pdc_color[color].b * 1000, 255); return OK; } int PDC_init_color(short color, short red, short green, short blue) { pdc_color[color].r = DIVROUND(red * 255, 1000); pdc_color[color].g = DIVROUND(green * 255, 1000); pdc_color[color].b = DIVROUND(blue * 255, 1000); pdc_mapped[color] = SDL_MapRGB(pdc_screen->format, pdc_color[color].r, pdc_color[color].g, pdc_color[color].b); wrefresh(curscr); return OK; }