/* gl_screen.c master for refresh, status bar, console, chat, notify, etc Copyright (C) 1996-1997 Id Software, Inc. Copyright (C) 1999,2000 Nelson Rush. Copyright (C) 1999,2000 contributors of the QuakeForge project Please see the file "AUTHORS" for a list of contributors 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: Free Software Foundation, Inc. 59 Temple Place - Suite 330 Boston, MA 02111-1307, USA $Id$ */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* background clear rendering turtle/net/ram icons sbar centerprint / slow centerprint notify lines intermission / finale overlay loading plaque console menu required background clears required update regions syncronous draw mode or async One off screen buffer, with updates either copied or xblited Need to double buffer? async draw will require the refresh area to be cleared, because it will be xblited, but sync draw can just ignore it. sync draw CenterPrint () SlowPrint () Screen_Update (); Con_Printf (); net turn off messages option the refresh is allways rendered, unless the console is full screen console is: notify lines half full */ int glx, gly, glwidth, glheight; // 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; cvar_t *scr_fov; cvar_t *scr_conspeed; cvar_t *scr_centertime; cvar_t *scr_showram; cvar_t *scr_showturtle; cvar_t *scr_showpause; cvar_t *scr_printspeed; cvar_t *scr_allowsnap; cvar_t *scr_consize; cvar_t *gl_triplebuffer; extern cvar_t *crosshair; 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; int sb_lines; viddef_t vid; // global video state vrect_t scr_vrect; qboolean scr_disabled_for_loading; qboolean scr_drawloading; float scr_disabled_time; qboolean block_drawing; void SCR_ScreenShot_f (void); void SCR_RSShot_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_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 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) { float size; int h; qboolean full = false; 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"); 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; if (scr_viewsize->value >= 100.0) { full = true; size = 100.0; } else size = scr_viewsize->value; if (cl.intermission) { full = true; size = 100.0; sb_lines = 0; } size /= 100.0; if (!cl_sbar->value && full) h = vid.height; else h = vid.height - sb_lines; r_refdef.vrect.width = vid.width * size; if (r_refdef.vrect.width < 96) { size = 96.0 / r_refdef.vrect.width; r_refdef.vrect.width = 96; // min for icons } r_refdef.vrect.height = vid.height * size; if (cl_sbar->value || !full) { if (r_refdef.vrect.height > vid.height - sb_lines) r_refdef.vrect.height = vid.height - sb_lines; } else if (r_refdef.vrect.height > vid.height) r_refdef.vrect.height = vid.height; r_refdef.vrect.x = (vid.width - r_refdef.vrect.width)/2; if (full) r_refdef.vrect.y = 0; else r_refdef.vrect.y = (h - r_refdef.vrect.height)/2; r_refdef.fov_x = scr_fov->value; r_refdef.fov_y = CalcFov (r_refdef.fov_x, r_refdef.vrect.width, r_refdef.vrect.height); scr_vrect = r_refdef.vrect; } /* ================= SCR_SizeUp_f Keybinding command ================= */ void SCR_SizeUp_f (void) { scr_viewsize->value = scr_viewsize->value+10; vid.recalc_refdef = 1; } /* ================= SCR_SizeDown_f Keybinding command ================= */ void SCR_SizeDown_f (void) { scr_viewsize->value = scr_viewsize->value-10; vid.recalc_refdef = 1; } //============================================================================ void SCR_InitCvars (void) { scr_fov = Cvar_Get ("fov","90",CVAR_NONE,"None"); scr_viewsize = Cvar_Get ("viewsize","100",CVAR_ARCHIVE,"None"); scr_conspeed = Cvar_Get ("scr_conspeed","300",CVAR_ARCHIVE,"None"); scr_showram = Cvar_Get ("scr_showram","1",CVAR_NONE,"None"); scr_showturtle = Cvar_Get ("scr_showturtle","0",CVAR_NONE,"None"); scr_showpause = Cvar_Get ("scr_showpause","1",CVAR_NONE,"None"); scr_centertime = Cvar_Get ("scr_centertime","2",CVAR_NONE,"None"); scr_printspeed = Cvar_Get ("scr_printspeed","8",CVAR_NONE,"None"); scr_allowsnap = Cvar_Get ("scr_allowsnap","1",CVAR_NONE,"None"); scr_consize = Cvar_Get ("scr_consize", "0.5", CVAR_NONE, "sets console size (0.5 is half screen"); gl_triplebuffer = Cvar_Get ("gl_triplebuffer","1",CVAR_ARCHIVE,"None"); } /* ================== SCR_Init ================== */ void SCR_Init (void) { // // register our commands // Cmd_AddCommand ("screenshot",SCR_ScreenShot_f); Cmd_AddCommand ("snap",SCR_RSShot_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) { #ifdef QUAKEWORLD if (cls.netchan.outgoing_sequence - cls.netchan.incoming_acknowledged < UPDATE_BACKUP-1) #else if (realtime - cl.last_received_message < 0.3) #endif return; if (cls.demoplayback) return; Draw_Pic (scr_vrect.x+64, scr_vrect.y, scr_net); } /* =============== SCR_DrawFPS Backported by Jules Bean from quakeworld client =============== */ void SCR_DrawFPS (void) { extern cvar_t *show_fps; static double lastframetime; double t; extern int fps_count; static int lastfps; int x, y; char st[80]; if (!show_fps->value) return; t = Sys_DoubleTime(); if ((t - lastframetime) >= 1.0) { lastfps = fps_count; fps_count = 0; lastframetime = t; } snprintf(st, sizeof(st), "%3d FPS", lastfps); x = vid.width - strlen(st) * 8 - 8; y = vid.height - sb_lines - 8; // Draw_TileClear(x, y, strlen(st) * 8, 8); Draw_String(x, y, st); } /* ============== 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 if (cls.state != ca_active) { scr_conlines = vid.height; // full screen scr_con_current = scr_conlines; } else if (key_dest == key_console) { scr_conlines = vid.height * max(0.2, min(scr_consize->value, 1)); } else scr_conlines = 0; // none visible if (scr_conlines < scr_con_current) { scr_con_current -= scr_conspeed->value * host_frametime * 4; 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 * 4; if (scr_conlines < scr_con_current) scr_con_current = scr_conlines; } if (clearconsole++ < vid.numpages) { Sbar_Changed (); } else if (clearnotify++ < vid.numpages) { } 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 _TargaHeader { unsigned char id_length, colormap_type, image_type; unsigned short colormap_index, colormap_length; unsigned char colormap_size; unsigned short x_origin, y_origin, width, height; unsigned char pixel_size, attributes; } TargaHeader; /* ================== SCR_ScreenShot_f ================== */ void SCR_ScreenShot_f (void) { byte *buffer; char pcxname[80]; char checkname[MAX_OSPATH]; int i, c, temp; // // find a file name to save it to // strcpy(pcxname,"quake00.tga"); for (i=0 ; i<=99 ; i++) { pcxname[5] = i/10 + '0'; pcxname[6] = i%10 + '0'; snprintf(checkname, sizeof(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; } buffer = malloc(glwidth*glheight*3 + 18); memset (buffer, 0, 18); buffer[2] = 2; // uncompressed type buffer[12] = glwidth&255; buffer[13] = glwidth>>8; buffer[14] = glheight&255; buffer[15] = glheight>>8; buffer[16] = 24; // pixel size glReadPixels (glx, gly, glwidth, glheight, GL_RGB, GL_UNSIGNED_BYTE, buffer+18 ); // swap rgb to bgr c = 18+glwidth*glheight*3; for (i=18 ; imanufacturer = 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; data += rowbytes * (height - 1); for (i=0 ; i>4; col = num&15; source = draw_chars + (row<<10) + (col<<3); drawline = 8; while (drawline--) { for (x=0 ; x<8 ; x++) if (source[x]) dest[x] = source[x]; else dest[x] = 98; source += 128; dest -= width; } } void SCR_DrawStringToSnap (const char *s, byte *buf, int x, int y, int width) { byte *dest; const unsigned char *p; dest = buf + ((y * width) + x); p = (const unsigned char *)s; while (*p) { SCR_DrawCharToSnap(*p++, dest, width); dest += 8; } } /* ================== SCR_RSShot_f ================== */ void SCR_RSShot_f (void) { // int i; int x, y; unsigned char *src, *dest; char pcxname[80]; // char checkname[MAX_OSPATH]; unsigned char *newbuf; int w, h; int dx, dy, dex, dey, nx; int r, b, g; int count; float fracw, frach; char st[80]; time_t now; #ifdef QUAKEWORLD if (CL_IsUploading()) return; // already one pending #endif if (cls.state < ca_onserver) return; // gotta be connected Con_Printf("Remote screen shot requested.\n"); #if 0 // // find a file name to save it to // strcpy(pcxname,"mquake00.pcx"); for (i=0 ; i<=99 ; i++) { pcxname[6] = i/10 + '0'; pcxname[7] = i%10 + '0'; snprintf(checkname, sizeof(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"); return; } #endif // // save the pcx file // newbuf = malloc(glheight * glwidth * 3); glReadPixels (glx, gly, glwidth, glheight, GL_RGB, GL_UNSIGNED_BYTE, newbuf ); w = (vid.width < RSSHOT_WIDTH) ? glwidth : RSSHOT_WIDTH; h = (vid.height < RSSHOT_HEIGHT) ? glheight : RSSHOT_HEIGHT; fracw = (float)glwidth / (float)w; frach = (float)glheight / (float)h; for (y = 0; y < h; y++) { dest = newbuf + (w*3 * y); for (x = 0; x < w; x++) { r = g = b = 0; dx = x * fracw; dex = (x + 1) * fracw; if (dex == dx) dex++; // at least one dy = y * frach; dey = (y + 1) * frach; if (dey == dy) dey++; // at least one count = 0; for (/* */; dy < dey; dy++) { src = newbuf + (glwidth * 3 * dy) + dx * 3; for (nx = dx; nx < dex; nx++) { r += *src++; g += *src++; b += *src++; count++; } } r /= count; g /= count; b /= count; *dest++ = r; *dest++ = b; *dest++ = g; } } // convert to eight bit for (y = 0; y < h; y++) { src = newbuf + (w * 3 * y); dest = newbuf + (w * y); for (x = 0; x < w; x++) { *dest++ = MipColor(src[0], src[1], src[2]); src += 3; } } time(&now); strcpy(st, ctime(&now)); st[strlen(st) - 1] = 0; SCR_DrawStringToSnap (st, newbuf, w - strlen(st)*8, h - 1, w); strncpy(st, cls.servername, sizeof(st)); st[sizeof(st) - 1] = 0; SCR_DrawStringToSnap (st, newbuf, w - strlen(st)*8, h - 11, w); #ifdef QUAKEWORLD strncpy(st, name->string, sizeof(st)); #else strncpy(st, cl_name->string, sizeof(st)); #endif st[sizeof(st) - 1] = 0; SCR_DrawStringToSnap (st, newbuf, w - strlen(st)*8, h - 21, w); WritePCXfile (pcxname, newbuf, w, h, w, host_basepal, true); free(newbuf); 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 0) { // left Draw_TileClear (0, 0, r_refdef.vrect.x, vid.height - sb_lines); // right Draw_TileClear (r_refdef.vrect.x + r_refdef.vrect.width, 0, vid.width - r_refdef.vrect.x + r_refdef.vrect.width, vid.height - sb_lines); } if (r_refdef.vrect.y > 0) { // top Draw_TileClear (r_refdef.vrect.x, 0, r_refdef.vrect.x + r_refdef.vrect.width, r_refdef.vrect.y); // bottom Draw_TileClear (r_refdef.vrect.x, r_refdef.vrect.y + r_refdef.vrect.height, r_refdef.vrect.width, vid.height - sb_lines - (r_refdef.vrect.height + r_refdef.vrect.y)); } } float oldsbar = 0; /* ================== 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) { if (block_drawing) return; vid.numpages = 2 + gl_triplebuffer->value; 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 (!scr_initialized || !con_initialized) return; // not initialized yet if (oldsbar != cl_sbar->value) { oldsbar = cl_sbar->value; vid.recalc_refdef = true; } GL_BeginRendering (&glx, &gly, &glwidth, &glheight); // // determine size of refresh window // if (oldfov != scr_fov->value) { oldfov = scr_fov->value; vid.recalc_refdef = true; } if (vid.recalc_refdef) SCR_CalcRefdef (); // // do 3D refresh drawing, and then update the screen // SCR_SetUpToDrawConsole (); V_RenderView (); GL_Set2D (); // // draw any areas not covered by the refresh // SCR_TileClear (); #ifdef QUAKEWORLD if (r_netgraph->value) R_NetGraph (); #endif 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 (crosshair->value) Draw_Crosshair(); SCR_DrawRam (); SCR_DrawNet (); SCR_DrawFPS (); SCR_DrawTurtle (); SCR_DrawPause (); SCR_CheckDrawCenterString (); Sbar_Draw (); SCR_DrawConsole (); M_Draw (); } V_UpdatePalette (); GL_EndRendering (); }