RingRacers/src/screen.h
Eidolon 591af1ab95 Add parallelsoftware cvar
In the rare case where kernel thread scheduling causes hitching issues
(SteamOS?), there should be an option to dynamically toggle multithread
dispatch of plane drawing.
2024-01-29 19:26:04 -06:00

186 lines
5.4 KiB
C

// SONIC ROBO BLAST 2
//-----------------------------------------------------------------------------
// Copyright (C) 1998-2000 by DooM Legacy Team.
// Copyright (C) 1999-2020 by Sonic Team Junior.
//
// This program is free software distributed under the
// terms of the GNU General Public License, version 2.
// See the 'LICENSE' file for more details.
//-----------------------------------------------------------------------------
/// \file screen.h
/// \brief Handles multiple resolutions, 8bpp/16bpp(highcolor) modes
#ifndef __SCREEN_H__
#define __SCREEN_H__
#include "command.h"
#if defined (_WIN32) && !defined (__CYGWIN__)
#define RPC_NO_WINDOWS_H
#include <windows.h>
#define DNWH HWND
#else
#define DNWH void * // unused in DOS version
#endif
#ifdef __cplusplus
extern "C" {
#endif
// quickhack for V_Init()... to be cleaned up
#ifdef NOPOSTPROCESSING
#define NUMSCREENS 2
#else
#define NUMSCREENS 5
#endif
// Size of statusbar.
#define ST_HEIGHT 32
#define ST_WIDTH 320
// used now as a maximum video mode size for extra vesa modes.
// we try to re-allocate a minimum of buffers for stability of the memory,
// so all the small-enough tables based on screen size, are allocated once
// and for all at the maximum size.
#define MAXVIDWIDTH 1920 // don't set this too high because actually
#define MAXVIDHEIGHT 1200 // lots of tables are allocated with the MAX size.
#define BASEVIDWIDTH 320 // NEVER CHANGE THIS! This is the original
#define BASEVIDHEIGHT 200 // resolution of the graphics.
// global video state
struct viddef_t
{
INT32 modenum; // vidmode num indexes videomodes list
UINT8 *buffer; // invisible screens buffer
size_t rowbytes; // bytes per scanline of the VIDEO mode
INT32 width; // PIXELS per scanline
INT32 height;
UINT32 realwidth; // real pixel width of window/screen
UINT32 realheight; // real pixel height of window/screen
union { // don't need numpages for OpenGL, so we can use it for fullscreen/windowed mode
INT32 numpages; // always 1, page flipping todo
INT32 windowed; // windowed or fullscren mode?
} u;
INT32 recalc; // if true, recalc vid-based stuff
UINT8 *direct; // linear frame buffer, or vga base mem.
INT32 dupx, dupy; // scale 1, 2, 3 value for menus & overlays
INT32/*fixed_t*/ fdupx, fdupy; // same as dupx, dupy, but exact value when aspect ratio isn't 320/200
INT32 bpp; // BYTES per pixel: 1 = 256color, 2 = highcolor
INT32 baseratio; // Used to get the correct value for lighting walls
// for Win32 version
DNWH WndParent; // handle of the application's window
UINT8 smalldupx, smalldupy; // factor for a little bit of scaling
UINT8 meddupx, meddupy; // factor for moderate, but not full, scaling
#ifdef HWRENDER
INT32/*fixed_t*/ fsmalldupx, fsmalldupy;
INT32/*fixed_t*/ fmeddupx, fmeddupy;
INT32 glstate;
#endif
};
enum
{
VID_GL_LIBRARY_NOTLOADED = 0,
VID_GL_LIBRARY_LOADED = 1,
VID_GL_LIBRARY_ERROR = -1,
};
// internal additional info for vesa modes only
struct vesa_extra_t
{
INT32 vesamode; // vesa mode number plus LINEAR_MODE bit
void *plinearmem; // linear address of start of frame buffer
};
// a video modes from the video modes list,
// note: video mode 0 is always standard VGA320x200.
struct vmode_t
{
vmode_t *pnext;
char *name;
UINT32 width, height;
UINT32 rowbytes; // bytes per scanline
UINT32 bytesperpixel; // 1 for 256c, 2 for highcolor
INT32 windowed; // if true this is a windowed mode
INT32 numpages;
vesa_extra_t *pextradata; // vesa mode extra data
#ifdef _WIN32
INT32 (WINAPI *setmode)(viddef_t *lvid, vmode_t *pcurrentmode);
#else
INT32 (*setmode)(viddef_t *lvid, vmode_t *pcurrentmode);
#endif
INT32 misc; // misc for display driver (r_opengl.dll etc)
};
#define NUMSPECIALMODES 4
extern vmode_t specialmodes[NUMSPECIALMODES];
// ----------------
// screen variables
// ----------------
extern viddef_t vid;
extern INT32 setmodeneeded; // mode number to set if needed, or 0
extern UINT8 setrenderneeded;
extern double averageFPS;
void SCR_ChangeRenderer(void);
extern CV_PossibleValue_t cv_renderer_t[];
extern INT32 scr_bpp;
extern UINT8 *scr_borderpatch; // patch used to fill the view borders
extern consvar_t cv_scr_width, cv_scr_height, cv_scr_depth, cv_renderview, cv_renderer, cv_renderhitbox, cv_fullscreen;
extern consvar_t cv_vhseffect, cv_shittyscreen;
extern consvar_t cv_parallelsoftware;
// wait for page flipping to end or not
extern consvar_t cv_vidwait;
extern consvar_t cv_timescale;
// Initialize the screen
void SCR_Startup(void);
// Change video mode, only at the start of a refresh.
void SCR_SetMode(void);
// Set drawer functions for Software
void SCR_SetDrawFuncs(void);
// Set current column / span drawers
void R_SetColumnFunc(size_t id, boolean brightmapped);
void R_SetSpanFunc(size_t id, boolean npo2, boolean brightmapped);
boolean R_SetSpanFuncFlat(size_t id); // flat color
// Compare current column drawer
boolean R_CheckColumnFunc(size_t id);
// Recalc screen size dependent stuff
void SCR_Recalc(void);
// Check parms once at startup
void SCR_CheckDefaultMode(void);
// Set the mode number which is saved in the config
void SCR_SetDefaultMode(void);
void SCR_CalculateFPS(void);
FUNCMATH boolean SCR_IsAspectCorrect(INT32 width, INT32 height);
// move out to main code for consistency
void SCR_DisplayTicRate(void);
void SCR_ClosedCaptions(void);
void SCR_DisplayLocalPing(void);
void SCR_DisplayMarathonInfo(void);
#undef DNWH
#ifdef __cplusplus
} // extern "C"
#endif
#endif //__SCREEN_H__