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