void Init_video(char* argv[])
{
allegro_init();
install_timer();
install_keyboard();
install_joystick(JOY_TYPE_AUTODETECT);
request_refresh_rate(FPS_VIDEO);
set_color_depth(32);
/*set_gfx_mode(GFX_AUTODETECT_FULLSCREEN, 320, 240, 0, 0);*/
set_gfx_mode(GFX_AUTODETECT_WINDOWED, 320, 240, 0, 0);
set_window_title(game_name);
clear_to_color(screen, makecol(0, 0, 0));
LOCK_VARIABLE(ticks);
LOCK_FUNCTION(ticker);
install_int_ex(ticker, BPS_TO_TIMER(FPS_VIDEO));
}
int uip_vgamode(void)
{
int depth, rate;
unsigned long screenbase;
for (rate = 60; rate <= 70; rate += 10) {
for (depth = 15; depth <= 16; depth++) {
LOG_VERBOSE(("Trying mode 640x480 depth %d rate %d", depth, rate));
set_color_depth(depth);
request_refresh_rate(rate);
if ((set_gfx_mode(GFX_AUTODETECT, 640, 480, 0, 480 * 2) < 0)) {
LOG_VERBOSE(("Mode not supported"));
continue;
}
if (SCREEN_W != 640 || SCREEN_H != 480) {
LOG_CRITICAL(("Screen not approriate for depth %d rate %d",
depth, rate));
continue;
}
goto WHEE;
}
}
LOG_CRITICAL(("Failed to find suitable mode"));
return 1;
WHEE:
uip_vga = 1;
if (uip_forceredshift != -1 && uip_forcegreenshift != -1 &&
uip_forceblueshift != -1) {
uip_uipinfo->redshift = uip_forceredshift;
uip_uipinfo->greenshift = uip_forcegreenshift;
uip_uipinfo->blueshift = uip_forceblueshift;
} else {
uip_uipinfo->redshift = ui_topbit(makecol(255, 0, 0)) - 4;
uip_uipinfo->greenshift = ui_topbit(makecol(0, 255, 0)) - 4;
uip_uipinfo->blueshift = ui_topbit(makecol(0, 0, 255)) - 4;
}
if ((uip_bank0 = create_video_bitmap(640, 480)) == NULL ||
(uip_bank1 = create_video_bitmap(640, 480)) == NULL) {
uip_textmode();
LOG_CRITICAL(("Failed to allocate memory pages"));
return 1;
}
if (is_linear_bitmap(uip_bank0) == 0 ||
is_linear_bitmap(uip_bank1) == 0 ||
is_video_bitmap(uip_bank0) == 0 || is_video_bitmap(uip_bank1) == 0) {
uip_textmode();
LOG_CRITICAL(("Allocated bitmaps not suitable or linear addressing mode "
"not supported by hardware"));
return 1;
}
/* don't you just hate MS platforms? */
__djgpp_nearptr_enable();
__dpmi_get_segment_base_address(uip_bank0->seg, &screenbase);
uip_uipinfo->screenmem0 = (uint8 *)(screenbase + uip_bank0->line[0] -
__djgpp_base_address);
__dpmi_get_segment_base_address(uip_bank1->seg, &screenbase);
uip_uipinfo->screenmem1 = (uint8 *)(screenbase + uip_bank1->line[0] -
__djgpp_base_address);
uip_uipinfo->linewidth = 2 * VIRTUAL_W; /* 16 bit */
uip_displaybank(0); /* set current to 0th bank */
uip_clearscreen(); /* clear bank */
ui_setupscreen(); /* setup bank */
uip_displaybank(-1); /* toggle bank */
uip_clearscreen(); /* clear bank */
ui_setupscreen(); /* setup bank */
if (install_keyboard() == -1) {
uip_textmode();
LOG_CRITICAL(("Unable to initialise keyboard"));
return 1;
}
if (uip_bank0->y_ofs != 0 || uip_bank1->y_ofs != 480) {
uip_textmode();
LOG_CRITICAL(("sorry, I don't understand this video layout"));
return 1;
}
keyboard_lowlevel_callback = uip_keyboardhandler;
uip_keypoll = keyboard_needs_poll()? 1 : 0;
return 0;
}
