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/*
* Copyright (C) 1996-1998 Szeredi Miklos
* Email: mszeredi@inf.bme.hu
*
* 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. See the file COPYING.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include "config.h"
#include "vgascr.h"
#include "spperif.h"
#include "spscr.h"
#include "spscr_p.h"
#include "spkey_p.h"
#include "misc.h"
#include "interf.h"
#define TV_WIDTH 320
#define TV_HEIGHT_SMALL 200
#define TV_HEIGHT_LARGE 240
#define X_OFF ((TV_WIDTH - WIDTH) / 2)
#define Y_OFF_L ((TV_HEIGHT_LARGE - HEIGHT) / 2)
#define WIDTH 256
#define HEIGHT 192
int small_screen = 0;
int vga_pause_bg = 0;
int scrmul; /* DUMMY */
int use_shm; /* DUMMY */
int privatemap; /* DUMMY */
int pause_on_iconify; /* DUMMY */
#ifndef USE_DJGPP
#include <vga.h>
#include <stdio.h>
#include <stdlib.h>
static volatile int need_restore = 0;
void update_screen(void)
{
if(need_restore) {
need_restore = 0;
spscr_init_line_pointers(small_screen ? TV_HEIGHT_SMALL : TV_HEIGHT_LARGE);
sp_init_screen_mark();
}
if(!small_screen) {
int i;
/* TODO: Only update if necessary */
for(i = 0; i < TV_HEIGHT_LARGE; i++) {
if(sp_border_update ||
(i >= Y_OFF_L && i < TV_HEIGHT_LARGE - Y_OFF_L &&
sp_imag_mark[i - Y_OFF_L])) {
if(i >= Y_OFF_L && i < TV_HEIGHT_LARGE - Y_OFF_L)
sp_imag_mark[i - Y_OFF_L] = 0;
vga_drawscanline(i, &sp_image[i * TV_WIDTH]);
}
}
}
}
#if RUN_IN_BACKGROUND && defined(VGA_GOTOBACK)
static void noupdt(void)
{
int i;
for(i = 0; i < PORT_TIME_NUM; i++) sp_scri[i] = -2;
screen_visible = 0;
accept_keys = 0;
}
static int paused_bak = 0;
static void swto(void)
{
if(vga_pause_bg) paused_bak = sp_paused, sp_paused = 1;
noupdt();
}
static void swfrom(void)
{
if(vga_pause_bg && sp_paused) sp_paused = paused_bak;
need_restore = 1;
screen_visible = 1;
accept_keys = 1;
spvk_after_switch = 1;
}
static void start_background(void)
{
if(vga_runinbackground_version() == 1) {
vga_runinbackground(VGA_GOTOBACK, swto);
vga_runinbackground(VGA_COMEFROMBACK, swfrom);
vga_runinbackground(1);
}
}
#else /* RUN_IN_BACKGROUND */
static void start_background(void)
{
}
#endif /* RUN_IN_BACKGROUND */
void set_vga_spmode(void)
{
if(!small_screen) {
if(vga_setmode(G320x240x256) < 0) {
put_msg("Can't use mode 320x240/256");
small_screen = 1;
}
}
if(small_screen) vga_setmode(G320x200x256);
vga_setpalvec(1, COLORNUM, &spscr_crgb[0].r);
}
void restore_sptextmode(void)
{
vga_setmode(TEXT);
}
void init_spect_scr(void)
{
int i;
spscr_init_colors();
start_background();
set_vga_spmode();
if(small_screen) sp_image = (char *) vga_getgraphmem();
else sp_image = (char *) malloc_err(TV_WIDTH * TV_HEIGHT_LARGE);
for(i = 0; i < COLORNUM; i++) {
sp_colors[i] = i+1;
}
spscr_init_mask_color();
spscr_init_line_pointers(small_screen ? TV_HEIGHT_SMALL : TV_HEIGHT_LARGE);
}
void sp_init_vga(void)
{
vga_init();
printf("\n");
}
#else /* !USE_DJGPP */
#ifdef Z80C
#warning Compile with i386 assembly!
#endif
#include <stdio.h>
#include <stdlib.h>
#include <dpmi.h>
#include <go32.h>
#include <sys/farptr.h>
#include <stdlib.h>
#ifdef USE_ALLEGRO
#include "allegro.h"
#endif
static int origmode;
int djsp_video_segment;
#define VIDEO_LEN 64000
#define VIDEO_OFFSET 0x000a0000
static void set_video_mode(int mode)
{
__dpmi_regs r;
r.h.ah = 0x00;
r.h.al = mode;
__dpmi_int(0x10, &r);
}
static int get_video_mode(void)
{
__dpmi_regs r;
r.h.ah = 0x0f;
__dpmi_int(0x10, &r);
return r.h.al;
}
void update_screen(void)
{
#ifdef Z80C
movedata(_my_ds(), (int) sp_image, VIDEO_OFFSET, VIDEO_LEN);
#endif
}
static void set_pal(int start, int num, int *pal)
{
int i;
__dpmi_regs r;
for(i = 0; i < num * 3; i++)
_farpokeb(_dos_ds, (__tb & 0x000fffff)+i, pal[i]);
r.x.ax = 0x1012;
r.x.bx = start;
r.x.cx = num;
r.x.dx = __tb & 0x0f;
r.x.es = (__tb >> 4) & 0xffff;
__dpmi_int(0x10, &r);
}
void set_vga_spmode(void)
{
set_video_mode(0x13);
set_pal(1, COLORNUM, &spscr_crgb[0].r);
spif_can_print = 0;
}
void restore_sptextmode(void)
{
set_video_mode(origmode);
spif_can_print = 1;
}
void init_spect_scr(void)
{
int i;
spscr_init_colors();
#ifdef Z80C
sp_image = (char *) malloc_err(VIDEO_LEN);
#else
djsp_video_segment = _dos_ds;
sp_image = (char *) VIDEO_OFFSET;
#endif
origmode = get_video_mode();
atexit(restore_sptextmode);
set_vga_spmode();
for(i = 0; i < COLORNUM; i++) {
sp_colors[i] = i+1;
}
spscr_init_mask_color();
spscr_init_line_pointers(TV_HEIGHT_SMALL);
}
void sp_init_vga(void)
{
#ifdef USE_ALLEGRO
if(allegro_init() != 0) {
fprintf(stderr, "Could not initialize allegro\n");
exit(1);
}
#endif
}
#endif /* !USE_DJGPP */
void destroy_spect_scr(void)
{
}
void resize_spect_scr(int s)
{
s = s;
}
void spcf_read_xresources(void)
{
}
void spscr_refresh_colors(void)
{
}
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