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Diffstat (limited to 'djgpp/gfx.c')
| -rw-r--r-- | djgpp/gfx.c | 535 |
1 files changed, 535 insertions, 0 deletions
diff --git a/djgpp/gfx.c b/djgpp/gfx.c new file mode 100644 index 0000000..8d8e849 --- /dev/null +++ b/djgpp/gfx.c @@ -0,0 +1,535 @@ +/* + + viDOOM - level editor for DOOM + + Copyright (C) 2000 Ian Cowburn (ianc@noddybox.demon.co.uk) + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + ------------------------------------------------------------------------- + + Graphics functions + +*/ +static const char rcs_id[]="$Id$"; + +#include "config.h" + +#include <stdio.h> +#include <allegro.h> +#include <stdarg.h> +#include <ctype.h> +#include <time.h> +#include "gfx.h" +#include "gui.h" +#include "debug.h" + + +/* ---------------------------------------- VARS +*/ +#define COLDEP 16 +#define ACOL(c) (makecol_depth(COLDEP,((c)&0xff0000)>>16, \ + ((c)&0xff00)>>8, \ + ((c)&0xff))) + +static int init=FALSE; + +static BITMAP *bm; +static int width; +static int height; + +static int mbuttons; + +static int dirty_min_x; +static int dirty_max_x; +static int dirty_min_y; +static int dirty_max_y; + +#define DIRTY(x,y) do { \ + dirty_min_x=MIN(x,dirty_min_x); \ + dirty_min_y=MIN(y,dirty_min_y); \ + dirty_max_x=MAX((x)+1,dirty_max_x); \ + dirty_max_y=MAX((y)+1,dirty_max_y); \ + } while(0) + + +/* ---------------------------------------- PRIVATE FUNCTIONS +*/ + +static void GetKey(GFXKey *key) +{ + static struct + { + int alleg; + int code; + } keym[]= { + {KEY_F1,GFX_F1}, + {KEY_F2,GFX_F2}, + {KEY_F3,GFX_F3}, + {KEY_F4,GFX_F4}, + {KEY_F5,GFX_F5}, + {KEY_F6,GFX_F6}, + {KEY_F7,GFX_F7}, + {KEY_F8,GFX_F8}, + {KEY_F9,GFX_F9}, + {KEY_F10,GFX_F10}, + {KEY_F11,GFX_F11}, + {KEY_F12,GFX_F12}, + {KEY_ESC,GFX_ESC}, + {KEY_INSERT,GFX_INSERT}, + {KEY_HOME,GFX_HOME}, + {KEY_PGUP,GFX_PGUP}, + {KEY_DEL,GFX_DELETE}, + {KEY_END,GFX_END}, + {KEY_PGDN,GFX_PGDN}, + {KEY_UP,GFX_UP}, + {KEY_DOWN,GFX_DOWN}, + {KEY_LEFT,GFX_LEFT}, + {KEY_RIGHT,GFX_RIGHT}, + {KEY_ENTER,GFX_ENTER}, + {KEY_BACKSPACE,GFX_BACKSPACE}, + {KEY_TAB,GFX_TAB}, + {-1,-1}, + }; + int f; + int k; + + while(TRUE) + { + k=readkey(); + + key->shift=key_shifts&KB_SHIFT_FLAG; + key->ctrl=key_shifts&KB_CTRL_FLAG; + key->alt=key_shifts&KB_ALT_FLAG; + + f=0; + while(keym[f].code!=-1) + { + if (keym[f].alleg==k>>8) + { + key->ascii=0; + key->code=keym[f].code; + return; + } + + f++; + } + + if (isprint(k&0xff)) + { + key->ascii=(k&0xff); + key->code=GFX_ASCII; + return; + } + } +} + +/* ---------------------------------------- EXPORTED FUNCTIONS +*/ +void GFX_init(void) +{ + if (!init) + { + init=TRUE; + allegro_init(); + + install_keyboard(); + + install_timer(); + + if ((mbuttons=install_mouse())==-1) + GFX_exit(EXIT_FAILURE,"Failed to install mouse handler\n"); + + set_color_depth(COLDEP); + } +} + + +void GFX_close(void) +{ + if (init) + { + allegro_exit(); + init=FALSE; + } +} + + +void GFX_open(int w,int h) +{ + height=h; + width=w; + + if (set_gfx_mode(GFX_AUTODETECT,w,h,0,0)<0) + GFX_exit(EXIT_FAILURE,"Couldn't open screen of %dx%d\n",w,h); + + if (!(bm=create_bitmap(w,h))) + GFX_exit(EXIT_FAILURE,"Couldn't create bitmap of %dx%d\n",w,h); + + show_mouse(screen); +} + + +void GFX_clear(int col) +{ + clear_to_color(bm,ACOL(col)); + dirty_min_x=0; + dirty_max_x=width; + dirty_min_y=0; + dirty_max_y=width; +} + + +void GFX_redraw(void) +{ + if (dirty_max_x<dirty_min_x) + return; + + dirty_min_x=MAX(0,dirty_min_x); + dirty_min_y=MAX(0,dirty_min_y); + dirty_max_x=MIN(width,dirty_max_x); + dirty_max_y=MIN(height,dirty_max_y); + + show_mouse(NULL); + + blit(bm,screen,dirty_min_x,dirty_min_y, + dirty_min_x,dirty_min_y, + dirty_max_x-dirty_min_x+1,dirty_max_y-dirty_min_y+1); + + show_mouse(screen); + + dirty_max_x=0; + dirty_min_x=width-1; + dirty_max_y=0; + dirty_min_y=width-1; +} + + +void GFX_FORCE_REDRAW(void) +{ + show_mouse(NULL); + blit(bm,screen,0,0,0,0,width,height); + show_mouse(screen); + dirty_max_x=0; + dirty_min_x=width-1; + dirty_max_y=0; + dirty_min_y=width-1; +} + + +void GFX_line(int x1,int y1,int x2,int y2,int col) +{ + DIRTY(x1,y1); + DIRTY(x2,y2); + line(bm,x1,y1,x2,y2,ACOL(col)); +} + + +void GFX_plot(int x,int y,int col) +{ + DIRTY(x,y); + putpixel(bm,x,y,ACOL(col)); +} + + +void GFX_circle(int x,int y,int r,int col) +{ + DIRTY(x-r-1,y-r-1); + DIRTY(x+r+1,y+r+1); + circle(bm,x,y,r,ACOL(col)); +} + + +void GFX_fcircle(int x,int y,int r,int col) +{ + DIRTY(x-r-1,y-r-1); + DIRTY(x+r+1,y+r+1); + circlefill(bm,x,y,r,ACOL(col)); +} + + +void GFX_rect(int x,int y,int w,int h,int col) +{ + DIRTY(x,y); + DIRTY(x+w,y+h); + + w-=SGN(w); + h-=SGN(h); + + rect(bm,x,y,x+w,y+h,ACOL(col)); +} + + +void GFX_frect(int x,int y,int w,int h,int col) +{ + DIRTY(x,y); + DIRTY(x+w,y+h); + + w-=SGN(w); + h-=SGN(h); + + rectfill(bm,x,y,x+w,y+h,ACOL(col)); +} + + +void GFX_set_XOR_mode(void) +{ + drawing_mode(DRAW_MODE_XOR,NULL,0,0); +} + + +void GFX_clear_XOR_mode(void) +{ + drawing_mode(DRAW_MODE_SOLID,NULL,0,0); +} + + +void GFX_print(int x,int y,int col,char *fmt,...) +{ + char s[512]; + va_list va; + + va_start(va,fmt); + vsprintf(s,fmt,va); + va_end(va); + + DIRTY(x,y); + DIRTY(x+text_length(font,s),y+text_height(font)); + + text_mode(-1); + textout(bm,font,s,x,y,ACOL(col)); +} + + +int GFX_fh(void) +{ + return(text_height(font)); +} + + +int GFX_fw(void) +{ + return(text_length(font," ")); +} + + +int GFX_mouse_buttons(void) +{ + return(mbuttons); +} + + +int GFX_mouse(int *x,int *y) +{ + if (x) + *x=mouse_x; + + if (y) + *y=mouse_y; + + return(mouse_b); +} + + +void GFX_waitkey(GFXKey *key) +{ + GFXKey dummy; + + while(!keypressed()); + if (key) + GetKey(key); + else + GetKey(&dummy); +} + + +int GFX_key(GFXKey *key) +{ + if(!keypressed()) + return(FALSE); + else + { + GetKey(key); + return(TRUE); + } +} + + +void GFX_bounce(void) +{ + while((keypressed())||(mouse_b)) + if (keypressed()) + readkey(); +} + + +void GFX_await_input(GFXEvent *ev) +{ + static time_t last_time=0; + static int mb; + + /* Assume that a gap of 1-2 seconds means that this is a new await + input loop + */ + if (time(NULL)-last_time>1) + mb=0; + + while (TRUE) + { + if (keypressed()) + { + ev->type=GFX_KEY_EVENT; + GetKey(&ev->key); + return; + } + + if (mouse_b!=mb) + { + ev->mouse.shift=key_shifts&KB_SHIFT_FLAG; + ev->mouse.ctrl=key_shifts&KB_CTRL_FLAG; + ev->mouse.alt=key_shifts&KB_ALT_FLAG; + ev->mouse.x=mouse_x; + ev->mouse.y=mouse_y; + ev->mouse.b=mb=mouse_b; + ev->type=GFX_MOUSE_EVENT; + return; + } + } +} + + +void GFX_await_input_full(GFXEvent *ev) +{ + static time_t last_time=0; + static int mx,my,mb; + + /* Assume that a gap of 1-2 seconds means that this is a new await + input loop + */ + if (time(NULL)-last_time>1) + { + mx=-1; + my=-1; + mb=0; + } + + while (TRUE) + { + if (keypressed()) + { + ev->type=GFX_KEY_EVENT; + GetKey(&ev->key); + last_time=time(NULL); + return; + } + + if ((mouse_b!=mb)||(mouse_x!=mx)||(mouse_y!=my)) + { + ev->mouse.shift=key_shifts&KB_SHIFT_FLAG; + ev->mouse.ctrl=key_shifts&KB_CTRL_FLAG; + ev->mouse.alt=key_shifts&KB_ALT_FLAG; + ev->mouse.x=mx=mouse_x; + ev->mouse.y=my=mouse_y; + ev->mouse.b=mb=mouse_b; + ev->type=GFX_MOUSE_EVENT; + last_time=time(NULL); + return; + } + } +} + + +void GFX_exit(int code,char *fmt,...) +{ + va_list va; + + if (init) + allegro_exit(); + + va_start(va,fmt); + vfprintf(stderr,fmt,va); + va_end(va); + + exit(code); +} + + +GFX_IMAGE GFX_create_image(GFX_BITMAP *bm) +{ + BITMAP *b; + RLE_SPRITE *ret; + int x,y; + + if (!(b=create_bitmap(bm->w,bm->h))) + return(NULL); + + clear(b); + + for(x=0;x<bm->w;x++) + for(y=0;y<bm->h;y++) + putpixel(b,x,y,ACOL(bm->pal[*(bm->data+(y*bm->w)+(x))])); + + ret=get_rle_sprite(b); + destroy_bitmap(b); + + return((GFX_IMAGE)ret); +} + + +void GFX_destroy_image(GFX_IMAGE img) +{ + destroy_rle_sprite(img); +} + + +void GFX_draw_image(GFX_IMAGE i, int x, int y) +{ + RLE_SPRITE *s; + + s=i; + draw_rle_sprite(bm,s,x,y); + DIRTY(x,y); + DIRTY(x+s->w,y+s->h); +} + + +void GFX_fill_screen(GFX_IMAGE i) +{ + BITMAP *b; + RLE_SPRITE *s; + + s=i; + b=create_bitmap(s->w,s->h); + draw_rle_sprite(b,s,0,0); + + stretch_blit(b,bm,0,0,s->w,s->h,0,0,width,height); + destroy_bitmap(b); + + DIRTY(0,0); + DIRTY(width,height); +} + + +void GFX_save_screen(char *path) +{ + BITMAP *sub; + + sub=create_sub_bitmap(screen,0,0,width,height); + save_bmp(path,sub,NULL); + destroy_bitmap(sub); +} + + +/* END OF FILE */ |