377 lines
7.0 KiB
C
377 lines
7.0 KiB
C
/*
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screen.c
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master for refresh, status bar, console, chat, notify, etc
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include "QF/cmd.h"
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#include "QF/cvar.h"
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#include "QF/draw.h"
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#include "QF/image.h"
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#include "QF/pcx.h"
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#include "QF/render.h"
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#include "QF/screen.h"
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#include "QF/sys.h"
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#include "QF/view.h"
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#include "compat.h"
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#include "r_internal.h"
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#include "sbar.h"
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/*
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background clear
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rendering
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turtle/net/ram icons
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sbar
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centerprint / slow centerprint
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notify lines
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intermission / finale overlay
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loading plaque
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console
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menu
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required background clears
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required update regions
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syncronous draw mode or async
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One off screen buffer, with updates either copied or xblited
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Need to double buffer?
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async draw will require the refresh area to be cleared, because it will be
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xblited, but sync draw can just ignore it.
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sync
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draw
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CenterPrint ()
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SlowPrint ()
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Screen_Update ();
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Sys_Printf ();
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net
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turn off messages option
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the refresh is always rendered, unless the console is full screen
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console is:
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notify lines
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half
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full
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*/
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// only the refresh window will be updated unless these variables are flagged
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int scr_copytop;
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int scr_copyeverything;
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byte *draw_chars; // 8*8 graphic characters FIXME location
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float oldfov;
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int oldsbar;
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qboolean scr_initialized; // ready to draw
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qpic_t *scr_ram;
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qpic_t *scr_net;
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qpic_t *scr_turtle;
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int scr_fullupdate;
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int clearconsole;
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viddef_t vid; // global video state
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vrect_t *pconupdate;
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vrect_t scr_vrect;
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qboolean scr_skipupdate;
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void
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R_SetVrect (vrect_t *pvrectin, vrect_t *pvrect, int lineadj)
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{
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float size;
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int h;
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// intermission is always full screen
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if (r_viewsize >= 100 || vr_data.force_fullscreen /*FIXME: better test*/) {
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size = 100.0;
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lineadj = 0;
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} else {
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size = r_viewsize;
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}
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size /= 100.0;
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h = pvrectin->height - lineadj;
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pvrect->width = pvrectin->width * size + 0.5;
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if (pvrect->width < 96) {
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size = 96.0 / pvrectin->width;
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pvrect->width = 96; // min for icons
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}
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pvrect->width &= ~7;
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pvrect->height = pvrectin->height * size + 0.5;
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if (pvrect->height > h)
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pvrect->height = h;
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pvrect->height &= ~1;
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pvrect->x = (pvrectin->width - pvrect->width) / 2;
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pvrect->y = (h - pvrect->height) / 2;
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}
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void
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SCR_CalcRefdef (void)
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{
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vrect_t vrect;
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refdef_t *refdef = r_data->refdef;
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// force a background redraw
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scr_fullupdate = 0;
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vid.recalc_refdef = 0;
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// bound field of view
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Cvar_SetValue (scr_fov, bound (1, scr_fov->value, 170));
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vrect.x = 0;
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vrect.y = 0;
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vrect.width = vid.width;
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vrect.height = vid.height;
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R_SetVrect (&vrect, &scr_vrect, vr_data.lineadj);
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refdef->vrect = scr_vrect;
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refdef->fov_x = scr_fov->value;
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refdef->fov_y =
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CalcFov (refdef->fov_x, refdef->vrect.width, refdef->vrect.height);
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// notify the refresh of the change
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vr_funcs->R_ViewChanged (vid.aspect);
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}
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float
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CalcFov (float fov_x, float width, float height)
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{
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float a, x;
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if (fov_x < 1 || fov_x > 179)
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Sys_Error ("Bad fov: %f", fov_x);
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x = width / tan (fov_x * (M_PI / 360));
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a = (x == 0) ? 90 : atan (height / x); // 0 shouldn't happen
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a = a * (360 / M_PI);
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return a;
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}
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static void
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ScreenShot_f (void)
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{
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vr_funcs->SCR_ScreenShot_f ();
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}
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/*
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SCR_SizeUp_f
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Keybinding command
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*/
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static void
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SCR_SizeUp_f (void)
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{
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if (scr_viewsize->int_val < 120) {
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Cvar_SetValue (scr_viewsize, scr_viewsize->int_val + 10);
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vid.recalc_refdef = 1;
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}
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}
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/*
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SCR_SizeDown_f
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Keybinding command
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*/
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static void
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SCR_SizeDown_f (void)
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{
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Cvar_SetValue (scr_viewsize, scr_viewsize->int_val - 10);
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vid.recalc_refdef = 1;
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}
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void
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SCR_DrawRam (void)
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{
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if (!scr_showram->int_val)
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return;
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if (!r_cache_thrash)
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return;
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vr_funcs->Draw_Pic (scr_vrect.x + 32, scr_vrect.y, scr_ram);
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}
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void
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SCR_DrawTurtle (void)
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{
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static int count;
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if (!scr_showturtle->int_val)
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return;
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if (vr_data.frametime < 0.1) {
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count = 0;
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return;
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}
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count++;
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if (count < 3)
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return;
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vr_funcs->Draw_Pic (scr_vrect.x, scr_vrect.y, scr_turtle);
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}
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void
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SCR_DrawPause (void)
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{
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qpic_t *pic;
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if (!scr_showpause->int_val) // turn off for screenshots
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return;
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if (!vr_data.paused)
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return;
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pic = vr_funcs->Draw_CachePic ("gfx/pause.lmp", true);
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vr_funcs->Draw_Pic ((vid.conwidth - pic->width) / 2,
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(vid.conheight - 48 - pic->height) / 2, pic);
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}
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void
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SCR_SetUpToDrawConsole (void)
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{
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}
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/*
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Find closest color in the palette for named color
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*/
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int
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MipColor (int r, int g, int b)
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{
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float bestdist, dist;
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int r1, g1, b1, i;
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int best = 0;
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static int lastbest;
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static int lr = -1, lg = -1, lb = -1;
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if (r == lr && g == lg && b == lb)
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return lastbest;
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bestdist = 256 * 256 * 3;
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for (i = 0; i < 256; i++) {
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int j;
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j = i * 3;
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r1 = vid.palette[j] - r;
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g1 = vid.palette[j + 1] - g;
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b1 = vid.palette[j + 2] - b;
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dist = r1 * r1 + g1 * g1 + b1 * b1;
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if (dist < bestdist) {
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bestdist = dist;
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best = i;
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}
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}
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lr = r;
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lg = g;
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lb = b;
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lastbest = best;
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return best;
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}
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// in draw.c
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static void
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SCR_DrawCharToSnap (int num, byte *dest, int width)
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{
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byte *source;
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int col, row, drawline, x;
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row = num >> 4;
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col = num & 15;
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source = draw_chars + (row << 10) + (col << 3);
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drawline = 8;
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while (drawline--) {
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for (x = 0; x < 8; x++)
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if (source[x])
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dest[x] = source[x];
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else
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dest[x] = 98;
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source += 128;
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dest -= width;
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}
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}
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void
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SCR_DrawStringToSnap (const char *s, tex_t *tex, int x, int y)
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{
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byte *dest;
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byte *buf = tex->data;
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const unsigned char *p;
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int width = tex->width;
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dest = buf + ((y * width) + x);
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p = (const unsigned char *) s;
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while (*p) {
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SCR_DrawCharToSnap (*p++, dest, width);
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dest += 8;
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}
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}
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void
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SCR_Init (void)
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{
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// register our commands
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Cmd_AddCommand ("screenshot", ScreenShot_f, "Take a screenshot, "
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"saves as qfxxx.pcx in the current directory");
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Cmd_AddCommand ("sizeup", SCR_SizeUp_f, "Increases the screen size");
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Cmd_AddCommand ("sizedown", SCR_SizeDown_f, "Decreases the screen size");
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scr_ram = vr_funcs->Draw_PicFromWad ("ram");
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scr_net = vr_funcs->Draw_PicFromWad ("net");
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scr_turtle = vr_funcs->Draw_PicFromWad ("turtle");
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vid = *vr_data.vid; // cache
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scr_initialized = true;
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}
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