2 Copyright (C) 1996-1997 Id Software, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 // vid.h -- video driver defs
25 #define ENGINE_ICON ( (gamemode == GAME_NEXUIZ) ? nexuiz_xpm : darkplaces_xpm )
27 extern int cl_available;
29 #define MAX_TEXTUREUNITS 32
31 typedef enum renderpath_e
38 typedef struct viddef_support_s
40 int glshaderversion; // this is at least 150 (GL 3.2)
41 qboolean amd_texture_texture4;
42 qboolean arb_texture_gather;
43 qboolean ext_texture_compression_s3tc;
44 qboolean ext_texture_filter_anisotropic;
45 qboolean ext_texture_srgb;
46 qboolean arb_debug_output;
50 typedef struct viddef_mode_s
57 qboolean userefreshrate;
58 qboolean stereobuffer;
63 typedef struct viddef_s
65 // these are set by VID_Mode
67 // used in many locations in the renderer
73 qboolean userefreshrate;
74 qboolean stereobuffer;
77 qboolean sRGB2D; // whether 2D rendering is sRGB corrected (based on sRGBcapable2D)
78 qboolean sRGB3D; // whether 3D rendering is sRGB corrected (based on sRGBcapable3D)
79 qboolean sRGBcapable2D; // whether 2D rendering can be sRGB corrected (renderpath)
80 qboolean sRGBcapable3D; // whether 3D rendering can be sRGB corrected (renderpath)
82 renderpath_t renderpath;
83 qboolean allowalphatocoverage; // indicates the GL_AlphaToCoverage function works on this renderpath and framebuffer
85 unsigned int maxtexturesize_2d;
86 unsigned int maxtexturesize_3d;
87 unsigned int maxtexturesize_cubemap;
88 unsigned int max_anisotropy;
89 unsigned int maxdrawbuffers;
91 viddef_support_t support;
93 int forcetextype; // always use GL_BGRA for D3D, always use GL_RGBA for GLES, etc
98 extern void (*vid_menudrawfn)(void);
99 extern void (*vid_menukeyfn)(int key);
101 #define MAXJOYAXIS 16
102 // if this is changed, the corresponding code in vid_shared.c must be updated
103 #define MAXJOYBUTTON 36
104 typedef struct vid_joystate_s
106 float axis[MAXJOYAXIS]; // -1 to +1
107 unsigned char button[MAXJOYBUTTON]; // 0 or 1
108 qboolean is360; // indicates this joystick is a Microsoft Xbox 360 Controller For Windows
112 extern vid_joystate_t vid_joystate;
114 extern cvar_t joy_index;
115 extern cvar_t joy_enable;
116 extern cvar_t joy_detected;
117 extern cvar_t joy_active;
119 float VID_JoyState_GetAxis(const vid_joystate_t *joystate, int axis, float sensitivity, float deadzone);
120 void VID_ApplyJoyState(vid_joystate_t *joystate);
121 void VID_BuildJoyState(vid_joystate_t *joystate);
122 void VID_Shared_BuildJoyState_Begin(vid_joystate_t *joystate);
123 void VID_Shared_BuildJoyState_Finish(vid_joystate_t *joystate);
124 int VID_Shared_SetJoystick(int index);
125 qboolean VID_JoyBlockEmulatedKeys(int keycode);
126 void VID_EnableJoystick(qboolean enable);
128 extern qboolean vid_hidden;
129 extern qboolean vid_activewindow;
130 extern qboolean vid_supportrefreshrate;
132 extern cvar_t vid_fullscreen;
133 extern cvar_t vid_borderless;
134 extern cvar_t vid_width;
135 extern cvar_t vid_height;
136 extern cvar_t vid_bitsperpixel;
137 extern cvar_t vid_samples;
138 extern cvar_t vid_refreshrate;
139 extern cvar_t vid_userefreshrate;
140 extern cvar_t vid_touchscreen_density;
141 extern cvar_t vid_touchscreen_xdpi;
142 extern cvar_t vid_touchscreen_ydpi;
143 extern cvar_t vid_vsync;
144 extern cvar_t vid_mouse;
145 extern cvar_t vid_mouse_clickthrough;
146 extern cvar_t vid_grabkeyboard;
147 extern cvar_t vid_touchscreen;
148 extern cvar_t vid_touchscreen_showkeyboard;
149 extern cvar_t vid_touchscreen_supportshowkeyboard;
150 extern cvar_t vid_stick_mouse;
151 extern cvar_t vid_resizable;
152 extern cvar_t vid_desktopfullscreen;
154 extern cvar_t vid_ignore_taskbar;
156 extern cvar_t vid_minwidth;
157 extern cvar_t vid_minheight;
158 extern cvar_t vid_sRGB;
159 extern cvar_t vid_sRGB_fallback;
161 extern cvar_t gl_finish;
163 extern cvar_t v_gamma;
164 extern cvar_t v_contrast;
165 extern cvar_t v_brightness;
166 extern cvar_t v_color_enable;
167 extern cvar_t v_color_black_r;
168 extern cvar_t v_color_black_g;
169 extern cvar_t v_color_black_b;
170 extern cvar_t v_color_grey_r;
171 extern cvar_t v_color_grey_g;
172 extern cvar_t v_color_grey_b;
173 extern cvar_t v_color_white_r;
174 extern cvar_t v_color_white_g;
175 extern cvar_t v_color_white_b;
177 // brand of graphics chip
178 extern const char *gl_vendor;
179 // graphics chip model and other information
180 extern const char *gl_renderer;
181 // begins with 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0
182 extern const char *gl_version;
183 // extensions list, space separated
184 extern const char *gl_extensions;
186 extern const char *gl_platform;
187 // name of driver library (opengl32.dll, libGL.so.1, or whatever)
188 extern char gl_driver[256];
190 void *GL_GetProcAddress(const char *name);
191 qboolean GL_CheckExtension(const char *name, const char *disableparm, int silent);
192 qboolean GL_ExtensionSupported(const char *name);
194 void VID_Shared_Init(void);
198 void VID_ClearExtensions(void);
200 void VID_Init (void);
203 void VID_Shutdown (void);
204 // Called at shutdown
206 int VID_SetMode (int modenum);
207 // sets the mode; only used by the Quake engine for resetting to mode 0 (the
208 // base mode) on memory allocation failures
210 qboolean VID_InitMode(viddef_mode_t *mode);
211 // allocates and opens an appropriate OpenGL context (and its window)
214 // updates cachegamma variables and bumps vid_gammatables_serial if anything changed
215 // (ONLY to be called from VID_Finish!)
216 void VID_UpdateGamma(void);
218 qboolean VID_HasScreenKeyboardSupport(void);
219 void VID_ShowKeyboard(qboolean show);
220 qboolean VID_ShowingKeyboard(void);
222 void VID_SetMouse (qboolean fullscreengrab, qboolean relative, qboolean hidecursor);
223 void VID_Finish (void);
225 void VID_Restart_f(cmd_state_t *cmd);
227 void VID_Start(void);
230 extern unsigned int vid_gammatables_serial; // so other subsystems can poll if gamma parameters have changed; this starts with 0 and gets increased by 1 each time the gamma parameters get changed and VID_BuildGammaTables should be called again
231 extern qboolean vid_gammatables_trivial; // this is set to true if all color control values are at default setting, and it therefore would make no sense to use the gamma table
232 void VID_BuildGammaTables(unsigned short *ramps, int rampsize); // builds the current gamma tables into an array (needs 3*rampsize items)
233 void VID_ApplyGammaToColor(const float *rgb, float *out); // applies current gamma settings to a color (0-1 range)
237 int width, height, bpp, refreshrate;
238 int pixelheight_num, pixelheight_denom;
241 vid_mode_t *VID_GetDesktopMode(void);
242 size_t VID_ListModes(vid_mode_t *modes, size_t maxcount);
243 size_t VID_SortModes(vid_mode_t *modes, size_t count, qboolean usebpp, qboolean userefreshrate, qboolean useaspect);
244 void VID_Soft_SharedSetup(void);