libretro-tyrquake/NQ/screen.c
2006-09-10 19:02:51 +09:30

975 lines
19 KiB
C

/*
Copyright (C) 1996-1997 Id Software, Inc.
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.
*/
// screen.c -- master for refresh, status bar, console, chat, notify, etc
#include "screen.h"
#include "quakedef.h"
#include "r_local.h"
#include "host.h"
#include "wad.h"
#include "draw.h"
#include "keys.h"
#include "sys.h"
#include "sbar.h"
#include "cmd.h"
#include "console.h"
#include "sound.h"
#include "view.h" /* lcd_x */
#include "menu.h"
// only the refresh window will be updated unless these variables are flagged
int scr_copytop;
int scr_copyeverything;
float scr_con_current;
float scr_conlines; // lines of console to display
float oldscreensize, oldfov;
cvar_t scr_viewsize = { "viewsize", "100", true };
cvar_t scr_fov = { "fov", "90" }; // 10 - 170
cvar_t scr_conspeed = { "scr_conspeed", "300" };
cvar_t scr_centertime = { "scr_centertime", "2" };
cvar_t scr_showram = { "showram", "1" };
cvar_t scr_showturtle = { "showturtle", "0" };
cvar_t scr_showpause = { "showpause", "1" };
cvar_t scr_printspeed = { "scr_printspeed", "8" };
qboolean scr_initialized; // ready to draw
qpic_t *scr_ram;
qpic_t *scr_net;
qpic_t *scr_turtle;
int scr_fullupdate;
int clearconsole;
int clearnotify;
viddef_t vid; // global video state
vrect_t *pconupdate;
vrect_t scr_vrect;
qboolean scr_disabled_for_loading;
qboolean scr_drawloading;
float scr_disabled_time;
qboolean scr_skipupdate;
qboolean block_drawing;
void SCR_ScreenShot_f(void);
/*
===============================================================================
CENTER PRINTING
===============================================================================
*/
char scr_centerstring[1024];
float scr_centertime_start; // for slow victory printing
float scr_centertime_off;
int scr_center_lines;
int scr_erase_lines;
int scr_erase_center;
/*
==============
SCR_CenterPrint
Called for important messages that should stay in the center of the screen
for a few moments
==============
*/
void
SCR_CenterPrint(char *str)
{
strncpy(scr_centerstring, str, sizeof(scr_centerstring) - 1);
scr_centertime_off = scr_centertime.value;
scr_centertime_start = cl.time;
// count the number of lines for centering
scr_center_lines = 1;
while (*str) {
if (*str == '\n')
scr_center_lines++;
str++;
}
}
void
SCR_EraseCenterString(void)
{
int y;
if (scr_erase_center++ > vid.numpages) {
scr_erase_lines = 0;
return;
}
if (scr_center_lines <= 4)
y = vid.height * 0.35;
else
y = 48;
scr_copytop = 1;
Draw_TileClear(0, y, vid.width, 8 * scr_erase_lines);
}
void
SCR_DrawCenterString(void)
{
char *start;
int l;
int j;
int x, y;
int remaining;
// the finale prints the characters one at a time
if (cl.intermission)
remaining = scr_printspeed.value * (cl.time - scr_centertime_start);
else
remaining = 9999;
scr_erase_center = 0;
start = scr_centerstring;
if (scr_center_lines <= 4)
y = vid.height * 0.35;
else
y = 48;
do {
// scan the width of the line
for (l = 0; l < 40; l++)
if (start[l] == '\n' || !start[l])
break;
x = (vid.width - l * 8) / 2;
for (j = 0; j < l; j++, x += 8) {
Draw_Character(x, y, start[j]);
if (!remaining--)
return;
}
y += 8;
while (*start && *start != '\n')
start++;
if (!*start)
break;
start++; // skip the \n
} while (1);
}
void
SCR_CheckDrawCenterString(void)
{
scr_copytop = 1;
if (scr_center_lines > scr_erase_lines)
scr_erase_lines = scr_center_lines;
scr_centertime_off -= host_frametime;
if (scr_centertime_off <= 0 && !cl.intermission)
return;
if (key_dest != key_game)
return;
SCR_DrawCenterString();
}
//=============================================================================
/*
====================
CalcFov
====================
*/
float
CalcFov(float fov_x, float width, float height)
{
float a;
float x;
if (fov_x < 1 || fov_x > 179)
Sys_Error("Bad fov: %f", fov_x);
x = width / tan(fov_x / 360 * M_PI);
a = atan(height / x);
a = a * 360 / M_PI;
return a;
}
/*
=================
SCR_CalcRefdef
Must be called whenever vid changes
Internal use only
=================
*/
static void
SCR_CalcRefdef(void)
{
vrect_t vrect;
float size;
scr_fullupdate = 0; // force a background redraw
vid.recalc_refdef = 0;
// force the status bar to redraw
Sbar_Changed();
//========================================
// bound viewsize
if (scr_viewsize.value < 30)
Cvar_Set("viewsize", "30");
if (scr_viewsize.value > 120)
Cvar_Set("viewsize", "120");
// bound field of view
if (scr_fov.value < 10)
Cvar_Set("fov", "10");
if (scr_fov.value > 170)
Cvar_Set("fov", "170");
r_refdef.fov_x = scr_fov.value;
r_refdef.fov_y =
CalcFov(r_refdef.fov_x, r_refdef.vrect.width, r_refdef.vrect.height);
// intermission is always full screen
if (cl.intermission)
size = 120;
else
size = scr_viewsize.value;
if (size >= 120)
sb_lines = 0; // no status bar at all
else if (size >= 110)
sb_lines = 24; // no inventory
else
sb_lines = 24 + 16 + 8;
// these calculations mirror those in R_Init() for r_refdef, but take no
// account of water warping
vrect.x = 0;
vrect.y = 0;
vrect.width = vid.width;
vrect.height = vid.height;
R_SetVrect(&vrect, &scr_vrect, sb_lines);
// guard against going from one mode to another that's less than half the
// vertical resolution
if (scr_con_current > vid.height)
scr_con_current = vid.height;
// notify the refresh of the change
R_ViewChanged(&vrect, sb_lines, vid.aspect);
}
/*
=================
SCR_SizeUp_f
Keybinding command
=================
*/
void
SCR_SizeUp_f(void)
{
Cvar_SetValue("viewsize", scr_viewsize.value + 10);
vid.recalc_refdef = 1;
}
/*
=================
SCR_SizeDown_f
Keybinding command
=================
*/
void
SCR_SizeDown_f(void)
{
Cvar_SetValue("viewsize", scr_viewsize.value - 10);
vid.recalc_refdef = 1;
}
//============================================================================
/*
==================
SCR_Init
==================
*/
void
SCR_Init(void)
{
Cvar_RegisterVariable(&scr_fov);
Cvar_RegisterVariable(&scr_viewsize);
Cvar_RegisterVariable(&scr_conspeed);
Cvar_RegisterVariable(&scr_showram);
Cvar_RegisterVariable(&scr_showturtle);
Cvar_RegisterVariable(&scr_showpause);
Cvar_RegisterVariable(&scr_centertime);
Cvar_RegisterVariable(&scr_printspeed);
//
// register our commands
//
Cmd_AddCommand("screenshot", SCR_ScreenShot_f);
Cmd_AddCommand("sizeup", SCR_SizeUp_f);
Cmd_AddCommand("sizedown", SCR_SizeDown_f);
scr_ram = Draw_PicFromWad("ram");
scr_net = Draw_PicFromWad("net");
scr_turtle = Draw_PicFromWad("turtle");
scr_initialized = true;
}
/*
==============
SCR_DrawRam
==============
*/
void
SCR_DrawRam(void)
{
if (!scr_showram.value)
return;
if (!r_cache_thrash)
return;
Draw_Pic(scr_vrect.x + 32, scr_vrect.y, scr_ram);
}
/*
==============
SCR_DrawTurtle
==============
*/
void
SCR_DrawTurtle(void)
{
static int count;
if (!scr_showturtle.value)
return;
if (host_frametime < 0.1) {
count = 0;
return;
}
count++;
if (count < 3)
return;
Draw_Pic(scr_vrect.x, scr_vrect.y, scr_turtle);
}
/*
==============
SCR_DrawNet
==============
*/
void
SCR_DrawNet(void)
{
if (realtime - cl.last_received_message < 0.3)
return;
if (cls.demoplayback)
return;
Draw_Pic(scr_vrect.x + 64, scr_vrect.y, scr_net);
}
/*
==============
DrawPause
==============
*/
void
SCR_DrawPause(void)
{
qpic_t *pic;
if (!scr_showpause.value) // turn off for screenshots
return;
if (!cl.paused)
return;
pic = Draw_CachePic("gfx/pause.lmp");
Draw_Pic((vid.width - pic->width) / 2,
(vid.height - 48 - pic->height) / 2, pic);
}
/*
==============
SCR_DrawLoading
==============
*/
void
SCR_DrawLoading(void)
{
qpic_t *pic;
if (!scr_drawloading)
return;
pic = Draw_CachePic("gfx/loading.lmp");
Draw_Pic((vid.width - pic->width) / 2,
(vid.height - 48 - pic->height) / 2, pic);
}
//=============================================================================
/*
==================
SCR_SetUpToDrawConsole
==================
*/
void
SCR_SetUpToDrawConsole(void)
{
Con_CheckResize();
if (scr_drawloading)
return; // never a console with loading plaque
// decide on the height of the console
con_forcedup = !cl.worldmodel || cls.state != ca_active;
if (con_forcedup) {
scr_conlines = vid.height; // full screen
scr_con_current = scr_conlines;
} else if (key_dest == key_console)
scr_conlines = vid.height / 2; // half screen
else
scr_conlines = 0; // none visible
if (scr_conlines < scr_con_current) {
scr_con_current -= scr_conspeed.value * host_frametime;
if (scr_conlines > scr_con_current)
scr_con_current = scr_conlines;
} else if (scr_conlines > scr_con_current) {
scr_con_current += scr_conspeed.value * host_frametime;
if (scr_conlines < scr_con_current)
scr_con_current = scr_conlines;
}
if (clearconsole++ < vid.numpages) {
scr_copytop = 1;
Draw_TileClear(0, (int)scr_con_current, vid.width,
vid.height - (int)scr_con_current);
Sbar_Changed();
} else if (clearnotify++ < vid.numpages) {
scr_copytop = 1;
Draw_TileClear(0, 0, vid.width, con_notifylines);
} else
con_notifylines = 0;
}
/*
==================
SCR_DrawConsole
==================
*/
void
SCR_DrawConsole(void)
{
if (scr_con_current) {
scr_copyeverything = 1;
Con_DrawConsole(scr_con_current);
clearconsole = 0;
} else {
if (key_dest == key_game || key_dest == key_message)
Con_DrawNotify(); // only draw notify in game
}
}
/*
==============================================================================
SCREEN SHOTS
==============================================================================
*/
typedef struct {
char manufacturer;
char version;
char encoding;
char bits_per_pixel;
unsigned short xmin, ymin, xmax, ymax;
unsigned short hres, vres;
unsigned char palette[48];
char reserved;
char color_planes;
unsigned short bytes_per_line;
unsigned short palette_type;
char filler[58];
unsigned char data; // unbounded
} pcx_t;
/*
==============
WritePCXfile
==============
*/
void
WritePCXfile(char *filename, byte *data, int width, int height,
int rowbytes, byte *palette)
{
int i, j, length;
pcx_t *pcx;
byte *pack;
pcx = Hunk_TempAlloc(width * height * 2 + 1000);
if (pcx == NULL) {
Con_Printf("SCR_ScreenShot_f: not enough memory\n");
return;
}
pcx->manufacturer = 0x0a; // PCX id
pcx->version = 5; // 256 color
pcx->encoding = 1; // uncompressed
pcx->bits_per_pixel = 8; // 256 color
pcx->xmin = 0;
pcx->ymin = 0;
pcx->xmax = LittleShort((short)(width - 1));
pcx->ymax = LittleShort((short)(height - 1));
pcx->hres = LittleShort((short)width);
pcx->vres = LittleShort((short)height);
memset(pcx->palette, 0, sizeof(pcx->palette));
pcx->color_planes = 1; // chunky image
pcx->bytes_per_line = LittleShort((short)width);
pcx->palette_type = LittleShort(2); // not a grey scale
memset(pcx->filler, 0, sizeof(pcx->filler));
// pack the image
pack = &pcx->data;
for (i = 0; i < height; i++) {
for (j = 0; j < width; j++) {
if ((*data & 0xc0) != 0xc0)
*pack++ = *data++;
else {
*pack++ = 0xc1;
*pack++ = *data++;
}
}
data += rowbytes - width;
}
// write the palette
*pack++ = 0x0c; // palette ID byte
for (i = 0; i < 768; i++)
*pack++ = *palette++;
// write output file
length = pack - (byte *)pcx;
COM_WriteFile(filename, pcx, length);
}
/*
==================
SCR_ScreenShot_f
==================
*/
void
SCR_ScreenShot_f(void)
{
int i;
char pcxname[80];
char checkname[MAX_OSPATH];
//
// find a file name to save it to
//
strcpy(pcxname, "quake00.pcx");
for (i = 0; i <= 99; i++) {
pcxname[5] = i / 10 + '0';
pcxname[6] = i % 10 + '0';
sprintf(checkname, "%s/%s", com_gamedir, pcxname);
if (Sys_FileTime(checkname) == -1)
break; // file doesn't exist
}
if (i == 100) {
Con_Printf("SCR_ScreenShot_f: Couldn't create a PCX file\n");
return;
}
//
// save the pcx file
//
D_EnableBackBufferAccess(); // enable direct drawing of console to back
// buffer
WritePCXfile(pcxname, vid.buffer, vid.width, vid.height, vid.rowbytes,
host_basepal);
D_DisableBackBufferAccess(); // for adapters that can't stay mapped in
// for linear writes all the time
Con_Printf("Wrote %s\n", pcxname);
}
//=============================================================================
/*
===============
SCR_BeginLoadingPlaque
================
*/
void
SCR_BeginLoadingPlaque(void)
{
S_StopAllSounds(true);
if (cls.state != ca_active)
return;
// redraw with no console and the loading plaque
Con_ClearNotify();
scr_centertime_off = 0;
scr_con_current = 0;
scr_drawloading = true;
scr_fullupdate = 0;
Sbar_Changed();
SCR_UpdateScreen();
scr_drawloading = false;
scr_disabled_for_loading = true;
scr_disabled_time = realtime;
scr_fullupdate = 0;
}
/*
===============
SCR_EndLoadingPlaque
================
*/
void
SCR_EndLoadingPlaque(void)
{
scr_disabled_for_loading = false;
scr_fullupdate = 0;
Con_ClearNotify();
}
//=============================================================================
char *scr_notifystring;
qboolean scr_drawdialog;
void
SCR_DrawNotifyString(void)
{
char *start;
int l;
int j;
int x, y;
start = scr_notifystring;
y = vid.height * 0.35;
do {
// scan the width of the line
for (l = 0; l < 40; l++)
if (start[l] == '\n' || !start[l])
break;
x = (vid.width - l * 8) / 2;
for (j = 0; j < l; j++, x += 8)
Draw_Character(x, y, start[j]);
y += 8;
while (*start && *start != '\n')
start++;
if (!*start)
break;
start++; // skip the \n
} while (1);
}
/*
==================
SCR_ModalMessage
Displays a text string in the center of the screen and waits for a Y or N
keypress.
==================
*/
int
SCR_ModalMessage(char *text)
{
if (cls.state == ca_dedicated)
return true;
scr_notifystring = text;
// draw a fresh screen
scr_fullupdate = 0;
scr_drawdialog = true;
SCR_UpdateScreen();
scr_drawdialog = false;
S_ClearBuffer(); // so dma doesn't loop current sound
do {
key_count = -1; // wait for a key down and up
Sys_SendKeyEvents();
} while (key_lastpress != 'y' && key_lastpress != 'n'
&& key_lastpress != K_ESCAPE);
scr_fullupdate = 0;
SCR_UpdateScreen();
return key_lastpress == 'y';
}
//=============================================================================
/*
===============
SCR_BringDownConsole
Brings the console down and fades the palettes back to normal
================
*/
void
SCR_BringDownConsole(void)
{
int i;
scr_centertime_off = 0;
for (i = 0; i < 20 && scr_conlines != scr_con_current; i++)
SCR_UpdateScreen();
cl.cshifts[0].percent = 0; // no area contents palette on next frame
VID_SetPalette(host_basepal);
}
/*
==================
SCR_UpdateScreen
This is called every frame, and can also be called explicitly to flush
text to the screen.
WARNING: be very careful calling this from elsewhere, because the refresh
needs almost the entire 256k of stack space!
==================
*/
void
SCR_UpdateScreen(void)
{
static float oldscr_viewsize;
static float oldlcd_x;
vrect_t vrect;
if (scr_skipupdate || block_drawing)
return;
scr_copytop = 0;
scr_copyeverything = 0;
if (scr_disabled_for_loading) {
if (realtime - scr_disabled_time > 60) {
scr_disabled_for_loading = false;
Con_Printf("load failed.\n");
} else
return;
}
if (cls.state == ca_dedicated)
return; // stdout only
if (!scr_initialized || !con_initialized)
return; // not initialized yet
if (scr_viewsize.value != oldscr_viewsize) {
oldscr_viewsize = scr_viewsize.value;
vid.recalc_refdef = 1;
}
//
// check for vid changes
//
if (oldfov != scr_fov.value) {
oldfov = scr_fov.value;
vid.recalc_refdef = true;
}
if (oldlcd_x != lcd_x.value) {
oldlcd_x = lcd_x.value;
vid.recalc_refdef = true;
}
if (oldscreensize != scr_viewsize.value) {
oldscreensize = scr_viewsize.value;
vid.recalc_refdef = true;
}
if (vid.recalc_refdef) {
// something changed, so reorder the screen
SCR_CalcRefdef();
}
//
// do 3D refresh drawing, and then update the screen
//
D_EnableBackBufferAccess(); // of all overlay stuff if drawing directly
if (scr_fullupdate++ < vid.numpages) { // clear the entire screen
scr_copyeverything = 1;
Draw_TileClear(0, 0, vid.width, vid.height);
Sbar_Changed();
}
pconupdate = NULL;
SCR_SetUpToDrawConsole();
SCR_EraseCenterString();
D_DisableBackBufferAccess(); // for adapters that can't stay mapped in
// for linear writes all the time
VID_LockBuffer();
V_RenderView();
VID_UnlockBuffer();
D_EnableBackBufferAccess(); // of all overlay stuff if drawing directly
if (scr_drawdialog) {
Sbar_Draw();
Draw_FadeScreen();
SCR_DrawNotifyString();
scr_copyeverything = true;
} else if (scr_drawloading) {
SCR_DrawLoading();
Sbar_Draw();
} else if (cl.intermission == 1 && key_dest == key_game) {
Sbar_IntermissionOverlay();
} else if (cl.intermission == 2 && key_dest == key_game) {
Sbar_FinaleOverlay();
SCR_CheckDrawCenterString();
} else if (cl.intermission == 3 && key_dest == key_game) {
SCR_CheckDrawCenterString();
} else {
SCR_DrawRam();
SCR_DrawNet();
SCR_DrawTurtle();
SCR_DrawPause();
SCR_CheckDrawCenterString();
Sbar_Draw();
SCR_DrawConsole();
M_Draw();
}
D_DisableBackBufferAccess(); // for adapters that can't stay mapped in
// for linear writes all the time
if (pconupdate) {
D_UpdateRects(pconupdate);
}
V_UpdatePalette();
//
// update one of three areas
//
if (scr_copyeverything) {
vrect.x = 0;
vrect.y = 0;
vrect.width = vid.width;
vrect.height = vid.height;
vrect.pnext = 0;
VID_Update(&vrect);
} else if (scr_copytop) {
vrect.x = 0;
vrect.y = 0;
vrect.width = vid.width;
vrect.height = vid.height - sb_lines;
vrect.pnext = 0;
VID_Update(&vrect);
} else {
vrect.x = scr_vrect.x;
vrect.y = scr_vrect.y;
vrect.width = scr_vrect.width;
vrect.height = scr_vrect.height;
vrect.pnext = 0;
VID_Update(&vrect);
}
}
/*
==================
SCR_UpdateWholeScreen
==================
*/
void
SCR_UpdateWholeScreen(void)
{
scr_fullupdate = 0;
SCR_UpdateScreen();
}