mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-13 08:27:39 +00:00
495dd759f0
Viewport and FOV updates are now separate so updating one doesn't cause recalculations of the other. Also, perspective setup is now done directly from the tangents of the half angles for fov_x and fov_y making the renderers independent of fov/aspect mode. I imagine things are a bit of a mess with view size changes, and especially screen size changes (not supported yet anyway), and vulkan winds up updating its projection matrices every frame, but everything that's expected to work does (vulkan errors out for fisheye or warp due to frame buffer creation not being supported yet).
625 lines
14 KiB
C
625 lines
14 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/dstring.h"
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#include "QF/image.h"
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#include "QF/png.h"
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#include "QF/pcx.h"
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#include "QF/quakefs.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/va.h"
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#include "QF/scene/entity.h"
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#include "QF/scene/transform.h"
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#include "QF/ui/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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// only the refresh window will be updated unless these variables are flagged
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int scr_copytop;
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byte *draw_chars; // 8*8 graphic characters FIXME location
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qboolean r_cache_thrash; // set if surface cache is thrashing
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qboolean scr_skipupdate;
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static qboolean scr_initialized;// ready to draw
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static qpic_t *scr_ram;
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static qpic_t *scr_turtle;
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static framebuffer_t *fisheye_cube_map;
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static framebuffer_t *warp_buffer;
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static float fov_x, fov_y;
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static float tan_fov_x, tan_fov_y;
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static mat4f_t box_rotations[] = {
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[BOX_FRONT] = {
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{ 1, 0, 0, 0}, // front
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{ 0, 1, 0, 0},
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{ 0, 0, 1, 0},
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{ 0, 0, 0, 1}
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},
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[BOX_RIGHT] = {
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{ 0,-1, 0, 0}, // right
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{ 1, 0, 0, 0},
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{ 0, 0, 1, 0},
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{ 0, 0, 0, 1}
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},
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[BOX_BEHIND] = {
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{-1, 0, 0, 0}, // back
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{ 0,-1, 0, 0},
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{ 0, 0, 1, 0},
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{ 0, 0, 0, 1}
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},
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[BOX_LEFT] = {
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{ 0, 1, 0, 0}, // left
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{-1, 0, 0, 0},
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{ 0, 0, 1, 0},
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{ 0, 0, 0, 1}
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},
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[BOX_TOP] = {
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{ 0, 0, 1, 0}, // top
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{ 0, 1, 0, 0},
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{-1, 0, 0, 0},
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{ 0, 0, 0, 1}
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},
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[BOX_BOTTOM] = {
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{ 0, 0,-1, 0}, // bottom
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{ 0, 1, 0, 0},
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{ 1, 0, 0, 0},
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{ 0, 0, 0, 1}
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},
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};
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static void
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set_vrect (const vrect_t *vrectin, vrect_t *vrect, int lineadj)
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{
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float size;
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int h;
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size = min (r_viewsize, 100);
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if (r_data->force_fullscreen) {
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// intermission is always full screen
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size = 100.0;
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lineadj = 0;
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}
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size /= 100.0;
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h = vrectin->height - lineadj;
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vrect->width = vrectin->width * size + 0.5;
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if (vrect->width < 96) {
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size = 96.0 / vrectin->width;
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vrect->width = 96; // min for icons
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}
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vrect->width &= ~7;
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vrect->height = vrectin->height * size + 0.5;
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if (vrect->height > h)
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vrect->height = h;
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vrect->height &= ~1;
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vrect->x = (vrectin->width - vrect->width) / 2;
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vrect->y = (h - vrect->height) / 2;
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}
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void//FIXME remove when sw warp is cleaned up
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R_SetVrect (const vrect_t *vrectin, vrect_t *vrect, int lineadj)
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{
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set_vrect (vrectin, vrect, lineadj);
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}
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void
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SCR_SetFOV (float fov)
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{
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refdef_t *refdef = r_data->refdef;
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double f = fov * M_PI / 360;
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double c = cos(f);
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double s = sin(f);
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double w = refdef->vrect.width;
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double h = refdef->vrect.height;
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fov_x = fov;
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fov_y = 360 * atan2 (s * h, c * w) / M_PI;
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tan_fov_x = s / c;
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tan_fov_y = (s * h) / (c * w);
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r_funcs->set_fov (tan_fov_x, tan_fov_y);
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}
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static void
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SCR_CalcRefdef (void)
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{
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view_t *view = r_data->scr_view;
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const vrect_t *rect = &r_data->refdef->vrect;
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r_data->vid->recalc_refdef = 0;
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view_setgeometry (view, rect->x, rect->y, rect->width, rect->height);
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// force a background redraw
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r_data->scr_fullupdate = 0;
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}
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static void
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render_scene (void)
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{
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r_framecount++;
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EntQueue_Clear (r_ent_queue);
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r_funcs->render_view ();
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r_funcs->draw_entities (r_ent_queue);
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r_funcs->draw_particles (&r_psystem);
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r_funcs->draw_transparent ();
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}
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static void
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render_side (int side)
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{
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mat4f_t camera;
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mat4f_t camera_inverse;
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mat4f_t rotinv;
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memcpy (camera, r_refdef.camera, sizeof (camera));
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memcpy (camera_inverse, r_refdef.camera_inverse, sizeof (camera_inverse));
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mmulf (r_refdef.camera, camera, box_rotations[side]);
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mat4ftranspose (rotinv, box_rotations[side]);
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mmulf (r_refdef.camera_inverse, rotinv, camera_inverse);
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//FIXME see fixme in r_screen.c
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r_refdef.frame.mat[0] = -r_refdef.camera[1];
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r_refdef.frame.mat[1] = r_refdef.camera[0];
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r_refdef.frame.mat[2] = r_refdef.camera[2];
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r_refdef.frame.mat[3] = r_refdef.camera[3];
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refdef_t *refdef = r_data->refdef;
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R_SetFrustum (refdef->frustum, &refdef->frame, 90, 90);
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r_funcs->bind_framebuffer (&fisheye_cube_map[side]);
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render_scene ();
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memcpy (r_refdef.camera, camera, sizeof (camera));
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memcpy (r_refdef.camera_inverse, camera_inverse, sizeof (camera_inverse));
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}
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void
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SCR_UpdateScreen (transform_t *camera, double realtime, SCR_Func *scr_funcs)
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{
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if (scr_skipupdate || !scr_initialized) {
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return;
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}
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if (r_timegraph->int_val || r_speeds->int_val || r_dspeeds->int_val) {
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r_time1 = Sys_DoubleTime ();
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}
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if (scr_fisheye->int_val && !fisheye_cube_map) {
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fisheye_cube_map = r_funcs->create_cube_map (r_data->vid->height);
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}
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refdef_t *refdef = r_data->refdef;
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if (camera) {
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Transform_GetWorldMatrix (camera, refdef->camera);
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Transform_GetWorldInverse (camera, refdef->camera_inverse);
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} else {
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mat4fidentity (refdef->camera);
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mat4fidentity (refdef->camera_inverse);
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}
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// FIXME pre-rotate the camera 90 degrees about the z axis such that the
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// camera forward vector (camera Y) points along the world +X axis and the
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// camera right vector (camera X) points along the world -Y axis. This
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// should not be necessary here but is due to AngleVectors (and thus
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// AngleQuat for compatibility) treating X as forward and Y as left (or -Y
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// as right). Fixing this would take an audit of the usage of both, but is
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// probably worthwhile in the long run.
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refdef->frame.mat[0] = -refdef->camera[1];
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refdef->frame.mat[1] = refdef->camera[0];
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refdef->frame.mat[2] = refdef->camera[2];
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refdef->frame.mat[3] = refdef->camera[3];
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R_SetFrustum (refdef->frustum, &refdef->frame, fov_x, fov_y);
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r_data->realtime = realtime;
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scr_copytop = r_data->scr_copyeverything = 0;
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if (r_data->vid->recalc_refdef) {
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SCR_CalcRefdef ();
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}
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R_RunParticles (r_data->frametime);
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R_AnimateLight ();
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refdef->viewleaf = 0;
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if (refdef->worldmodel) {
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vec4f_t position = refdef->frame.position;
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refdef->viewleaf = Mod_PointInLeaf (&position[0], refdef->worldmodel);
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r_dowarpold = r_dowarp;
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if (r_waterwarp->int_val) {
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r_dowarp = refdef->viewleaf->contents <= CONTENTS_WATER;
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}
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if (r_dowarp && !warp_buffer) {
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warp_buffer = r_funcs->create_frame_buffer (r_data->vid->width,
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r_data->vid->height);
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}
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}
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R_MarkLeaves ();
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R_PushDlights (vec3_origin);
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r_funcs->begin_frame ();
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if (r_dowarp) {
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r_funcs->bind_framebuffer (warp_buffer);
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}
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if (scr_fisheye->int_val) {
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int side = fisheye_cube_map->width;
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vrect_t feye = { 0, 0, side, side };
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r_funcs->set_viewport (&feye);
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r_funcs->set_fov (1, 1); //FIXME shouldn't be every frame (2d stuff)
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switch (scr_fviews->int_val) {
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case 6: render_side (BOX_BEHIND);
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case 5: render_side (BOX_BOTTOM);
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case 4: render_side (BOX_TOP);
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case 3: render_side (BOX_LEFT);
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case 2: render_side (BOX_RIGHT);
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default:render_side (BOX_FRONT);
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}
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r_funcs->bind_framebuffer (0);
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r_funcs->set_viewport (&r_refdef.vrect);
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r_funcs->post_process (fisheye_cube_map);
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} else {
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r_funcs->set_viewport (&r_refdef.vrect);
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render_scene ();
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if (r_dowarp) {
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r_funcs->bind_framebuffer (0);
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r_funcs->post_process (warp_buffer);
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}
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}
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r_funcs->set_2d (0);
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view_draw (r_data->scr_view);
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r_funcs->set_2d (1);
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while (*scr_funcs) {
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(*scr_funcs) ();
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scr_funcs++;
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}
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r_funcs->end_frame ();
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}
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static void
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update_vrect (void)
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{
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r_data->vid->recalc_refdef = 1;
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vrect_t vrect;
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refdef_t *refdef = r_data->refdef;
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vrect.x = 0;
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vrect.y = 0;
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vrect.width = r_data->vid->width;
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vrect.height = r_data->vid->height;
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set_vrect (&vrect, &refdef->vrect, r_data->lineadj);
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SCR_SetFOV (scr_fov->value);
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}
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void
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SCR_SetFullscreen (qboolean fullscreen)
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{
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if (r_data->force_fullscreen == fullscreen) {
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return;
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}
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r_data->force_fullscreen = fullscreen;
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update_vrect ();
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}
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void
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SCR_SetBottomMargin (int lines)
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{
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r_data->lineadj = lines;
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update_vrect ();
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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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dstring_t *name = dstring_new ();
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// find a file name to save it to
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if (!QFS_NextFilename (name, va (0, "%s/qf",
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qfs_gamedir->dir.shots), ".png")) {
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Sys_Printf ("SCR_ScreenShot_f: Couldn't create a PNG file\n");
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} else {
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tex_t *tex;
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tex = r_funcs->SCR_CaptureBGR ();
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WritePNGqfs (name->str, tex->data, tex->width, tex->height);
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free (tex);
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Sys_Printf ("Wrote %s/%s\n", qfs_userpath, name->str);
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}
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dstring_delete (name);
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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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r_data->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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r_data->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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//FIXME view
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r_funcs->Draw_Pic (r_data->scr_view->xpos + 32, r_data->scr_view->ypos,
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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 (r_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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//FIXME view
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r_funcs->Draw_Pic (r_data->scr_view->xpos, r_data->scr_view->ypos,
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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 (!r_data->paused)
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return;
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//FIXME view conwidth
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pic = r_funcs->Draw_CachePic ("gfx/pause.lmp", true);
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r_funcs->Draw_Pic ((r_data->vid->conview->xlen - pic->width) / 2,
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(r_data->vid->conview->ylen - 48 - pic->height) / 2,
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pic);
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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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static 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 = r_data->vid->palette[j] - r;
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g1 = r_data->vid->palette[j + 1] - g;
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b1 = r_data->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;
|
|
dest -= width;
|
|
}
|
|
|
|
}
|
|
|
|
void
|
|
SCR_DrawStringToSnap (const char *s, tex_t *tex, int x, int y)
|
|
{
|
|
byte *dest;
|
|
byte *buf = tex->data;
|
|
const unsigned char *p;
|
|
int width = tex->width;
|
|
|
|
dest = buf + ((y * width) + x);
|
|
|
|
p = (const unsigned char *) s;
|
|
while (*p) {
|
|
SCR_DrawCharToSnap (*p++, dest, width);
|
|
dest += 8;
|
|
}
|
|
}
|
|
|
|
tex_t *
|
|
SCR_SnapScreen (unsigned width, unsigned height)
|
|
{
|
|
byte *src, *dest;
|
|
float fracw, frach;
|
|
unsigned count, dex, dey, dx, dy, nx, r, g, b, x, y, w, h;
|
|
tex_t *tex;
|
|
|
|
tex_t *snap = r_funcs->SCR_CaptureBGR ();
|
|
|
|
//FIXME casts
|
|
w = ((unsigned)snap->width < width) ? (unsigned)snap->width : width;
|
|
h = ((unsigned)snap->height < height) ? (unsigned)snap->height : height;
|
|
|
|
fracw = (float) snap->width / (float) w;
|
|
frach = (float) snap->height / (float) h;
|
|
|
|
tex = malloc (sizeof (tex_t) + w * h);
|
|
tex->data = (byte *) (tex + 1);
|
|
if (!tex)
|
|
return 0;
|
|
|
|
tex->width = w;
|
|
tex->height = h;
|
|
tex->palette = r_data->vid->palette;
|
|
|
|
for (y = 0; y < h; y++) {
|
|
dest = tex->data + (w * 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 = snap->data + (snap->width * 3 * dy) + dx * 3;
|
|
for (nx = dx; nx < dex; nx++) {
|
|
b += *src++;
|
|
g += *src++;
|
|
r += *src++;
|
|
count++;
|
|
}
|
|
}
|
|
r /= count;
|
|
g /= count;
|
|
b /= count;
|
|
*dest++ = MipColor (r, g, b);
|
|
}
|
|
}
|
|
free (snap);
|
|
|
|
return tex;
|
|
}
|
|
|
|
static void
|
|
viewsize_listener (void *data, const cvar_t *cvar)
|
|
{
|
|
update_vrect ();
|
|
}
|
|
|
|
void
|
|
SCR_Init (void)
|
|
{
|
|
// register our commands
|
|
Cmd_AddCommand ("screenshot", ScreenShot_f, "Take a screenshot, "
|
|
"saves as qfxxxx.png in the QF directory");
|
|
Cmd_AddCommand ("sizeup", SCR_SizeUp_f, "Increases the screen size");
|
|
Cmd_AddCommand ("sizedown", SCR_SizeDown_f, "Decreases the screen size");
|
|
|
|
scr_ram = r_funcs->Draw_PicFromWad ("ram");
|
|
scr_turtle = r_funcs->Draw_PicFromWad ("turtle");
|
|
|
|
scr_initialized = true;
|
|
|
|
r_ent_queue = EntQueue_New (mod_num_types);
|
|
|
|
Cvar_AddListener (scr_viewsize, viewsize_listener, 0);
|
|
update_vrect ();
|
|
}
|