vid.h

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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.
 
*/
// vid.h -- video driver defs
 
#ifndef VID_H
#define VID_H
 
#include <stddef.h>
#include "qtypes.h"
struct cmd_state_s;
 
#define ENGINE_ICON ( (gamemode == GAME_NEXUIZ) ? nexuiz_xpm : darkplaces_xpm )
 
extern int cl_available;
 
#define MAX_TEXTUREUNITS 32
 
typedef enum renderpath_e
{
    RENDERPATH_GL32,
    RENDERPATH_GLES2
}
renderpath_t;
 
typedef struct viddef_support_s
{
    int glversion; 
    int glshaderversion; 
    qbool amd_texture_texture4;
    qbool arb_texture_gather;
    qbool ext_texture_compression_s3tc;
    qbool ext_texture_filter_anisotropic;
    qbool ext_texture_srgb;
    qbool arb_debug_output;
}
viddef_support_t;
 
typedef struct viddef_mode_s
{
    int display;
    qbool fullscreen;
    qbool desktopfullscreen; 
    int width;
    int height;
    int bitsperpixel;
    float refreshrate;
    qbool stereobuffer;
    int samples;
}
viddef_mode_t;
 
typedef struct viddef_s
{
    // these are set by VID_Mode
    // used in many locations in the renderer
    viddef_mode_t mode; 
    qbool stencil;
    qbool sRGB2D; 
    qbool sRGB3D; 
    qbool sRGBcapable2D; 
    qbool sRGBcapable3D; 
 
    renderpath_t renderpath;
    qbool allowalphatocoverage; 
 
    unsigned int maxtexturesize_2d;
    unsigned int maxtexturesize_3d;
    unsigned int maxtexturesize_cubemap;
    unsigned int max_anisotropy;
    unsigned int maxdrawbuffers;
 
    viddef_support_t support;
 
    int forcetextype; 
 
    int xPos, yPos; 
} viddef_t;

extern viddef_t vid;
 
#define MAXJOYAXIS 16
// if this is changed, the corresponding code in vid_shared.c must be updated
#define MAXJOYBUTTON 36
typedef struct vid_joystate_s
{
    float axis[MAXJOYAXIS]; 
    unsigned char button[MAXJOYBUTTON]; 
    qbool is360; 
}
vid_joystate_t;
 
extern vid_joystate_t vid_joystate;
 
extern cvar_t joy_index;
extern cvar_t joy_enable;
extern cvar_t joy_detected;
extern cvar_t joy_active;
 
float VID_JoyState_GetAxis(const vid_joystate_t *joystate, int axis, float sensitivity, float deadzone);
void VID_ApplyJoyState(vid_joystate_t *joystate);
void VID_BuildJoyState(vid_joystate_t *joystate);
void VID_Shared_BuildJoyState_Begin(vid_joystate_t *joystate);
void VID_Shared_BuildJoyState_Finish(vid_joystate_t *joystate);
int VID_Shared_SetJoystick(int index);
qbool VID_JoyBlockEmulatedKeys(int keycode);
void VID_EnableJoystick(qbool enable);
 
extern cvar_t cl_demo_mousegrab;
extern qbool scr_loading;
 
extern qbool vid_hidden;
extern qbool vid_activewindow;
extern qbool vid_supportrefreshrate;
 
extern cvar_t vid_fullscreen;
extern cvar_t vid_borderless;
extern cvar_t vid_width;
extern cvar_t vid_height;
extern cvar_t vid_bitsperpixel;
extern cvar_t vid_samples;
extern cvar_t vid_refreshrate;
extern cvar_t vid_touchscreen_density;
extern cvar_t vid_touchscreen_xdpi;
extern cvar_t vid_touchscreen_ydpi;
extern cvar_t vid_vsync;
extern cvar_t vid_mouse;
extern cvar_t vid_mouse_clickthrough;
extern cvar_t vid_minimize_on_focus_loss;
extern cvar_t vid_grabkeyboard;
extern cvar_t vid_touchscreen;
extern cvar_t vid_touchscreen_showkeyboard;
extern cvar_t vid_touchscreen_supportshowkeyboard;
extern cvar_t vid_stick_mouse;
extern cvar_t vid_resizable;
extern cvar_t vid_desktopfullscreen;
extern cvar_t vid_display;
extern cvar_t vid_info_displaycount;
#ifdef WIN32
extern cvar_t vid_ignore_taskbar;
#endif
extern cvar_t vid_minwidth;
extern cvar_t vid_minheight;
extern cvar_t vid_sRGB;
extern cvar_t vid_sRGB_fallback;
 
extern cvar_t gl_finish;
 
extern cvar_t v_gamma;
extern cvar_t v_contrast;
extern cvar_t v_brightness;
extern cvar_t v_color_enable;
extern cvar_t v_color_black_r;
extern cvar_t v_color_black_g;
extern cvar_t v_color_black_b;
extern cvar_t v_color_grey_r;
extern cvar_t v_color_grey_g;
extern cvar_t v_color_grey_b;
extern cvar_t v_color_white_r;
extern cvar_t v_color_white_g;
extern cvar_t v_color_white_b;
 
extern cvar_t gl_info_vendor;
extern cvar_t gl_info_renderer;
extern cvar_t gl_info_version;
extern cvar_t gl_info_extensions;
extern cvar_t gl_info_driver;

extern const char *gl_vendor;
extern const char *gl_renderer;
extern const char *gl_version;
 
 
void *GL_GetProcAddress(const char *name);
qbool GL_CheckExtension(const char *name, const char *disableparm, int silent);
qbool GL_ExtensionSupported(const char *name);
 
void VID_Shared_Init(void);
 
void GL_InitFunctions(void);
void GL_Setup(void);
 
void VID_ClearExtensions(void);

void VID_Init (void);

void VID_Shutdown (void);

int VID_SetMode (int modenum);

qbool VID_InitMode(const viddef_mode_t *mode);
 

void VID_UpdateGamma(void);
 
qbool VID_HasScreenKeyboardSupport(void);
void VID_ShowKeyboard(qbool show);
qbool VID_ShowingKeyboard(void);
 
void VID_Finish (void);
 
void VID_Restart_f(struct cmd_state_s *cmd);
 
void VID_Start(void);
void VID_Stop(void);
 
extern unsigned int vid_gammatables_serial; 
extern qbool vid_gammatables_trivial; 
void VID_BuildGammaTables(unsigned short *ramps, int rampsize);
void VID_ApplyGammaToColor(const float *rgb, float *out);
 
typedef struct
{
    int width, height, bpp, refreshrate;
    int pixelheight_num, pixelheight_denom;
}
vid_mode_t;
vid_mode_t VID_GetDesktopMode(void);
size_t VID_ListModes(vid_mode_t *modes, size_t maxcount);
size_t VID_SortModes(vid_mode_t *modes, size_t count, qbool usebpp, qbool userefreshrate, qbool useaspect);
void VID_Soft_SharedSetup(void);
 
#endif