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- /*
- 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 "quakedef.h"
- #include "r_local.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.signon != SIGNONS;
-
- 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, true);
- 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);
- Q_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
- Q_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_connected)
- return;
- if (cls.signon != SIGNONS)
- 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 ();
- }
-