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
29 #define ENGINE_ICON ( (gamemode == GAME_NEXUIZ) ? nexuiz_xpm : darkplaces_xpm )
31 extern int cl_available;
33 #define MAX_TEXTUREUNITS 32
35 typedef enum renderpath_e
42 typedef struct viddef_support_s
44 int glversion; // this is at least 32
45 int glshaderversion; // this is at least 150 (GL 3.2)
46 qbool amd_texture_texture4;
47 qbool arb_texture_gather;
48 qbool ext_texture_compression_s3tc;
49 qbool ext_texture_filter_anisotropic;
50 qbool ext_texture_srgb;
51 qbool arb_debug_output;
55 typedef struct viddef_mode_s
68 typedef struct viddef_s
70 // these are set by VID_Mode
72 // used in many locations in the renderer
82 qbool sRGB2D; // whether 2D rendering is sRGB corrected (based on sRGBcapable2D)
83 qbool sRGB3D; // whether 3D rendering is sRGB corrected (based on sRGBcapable3D)
84 qbool sRGBcapable2D; // whether 2D rendering can be sRGB corrected (renderpath)
85 qbool sRGBcapable3D; // whether 3D rendering can be sRGB corrected (renderpath)
87 renderpath_t renderpath;
88 qbool allowalphatocoverage; // indicates the GL_AlphaToCoverage function works on this renderpath and framebuffer
90 unsigned int maxtexturesize_2d;
91 unsigned int maxtexturesize_3d;
92 unsigned int maxtexturesize_cubemap;
93 unsigned int max_anisotropy;
94 unsigned int maxdrawbuffers;
96 viddef_support_t support;
98 int forcetextype; // always use GL_BGRA for D3D, always use GL_RGBA for GLES, etc
101 // global video state
103 extern void (*vid_menudrawfn)(void);
104 extern void (*vid_menukeyfn)(int key);
106 #define MAXJOYAXIS 16
107 // if this is changed, the corresponding code in vid_shared.c must be updated
108 #define MAXJOYBUTTON 36
109 typedef struct vid_joystate_s
111 float axis[MAXJOYAXIS]; // -1 to +1
112 unsigned char button[MAXJOYBUTTON]; // 0 or 1
113 qbool is360; // indicates this joystick is a Microsoft Xbox 360 Controller For Windows
117 extern vid_joystate_t vid_joystate;
119 extern cvar_t joy_index;
120 extern cvar_t joy_enable;
121 extern cvar_t joy_detected;
122 extern cvar_t joy_active;
124 float VID_JoyState_GetAxis(const vid_joystate_t *joystate, int axis, float sensitivity, float deadzone);
125 void VID_ApplyJoyState(vid_joystate_t *joystate);
126 void VID_BuildJoyState(vid_joystate_t *joystate);
127 void VID_Shared_BuildJoyState_Begin(vid_joystate_t *joystate);
128 void VID_Shared_BuildJoyState_Finish(vid_joystate_t *joystate);
129 int VID_Shared_SetJoystick(int index);
130 qbool VID_JoyBlockEmulatedKeys(int keycode);
131 void VID_EnableJoystick(qbool enable);
133 extern qbool vid_hidden;
134 extern qbool vid_activewindow;
135 extern qbool vid_supportrefreshrate;
137 extern cvar_t vid_fullscreen;
138 extern cvar_t vid_borderless;
139 extern cvar_t vid_width;
140 extern cvar_t vid_height;
141 extern cvar_t vid_bitsperpixel;
142 extern cvar_t vid_samples;
143 extern cvar_t vid_refreshrate;
144 extern cvar_t vid_userefreshrate;
145 extern cvar_t vid_touchscreen_density;
146 extern cvar_t vid_touchscreen_xdpi;
147 extern cvar_t vid_touchscreen_ydpi;
148 extern cvar_t vid_vsync;
149 extern cvar_t vid_mouse;
150 extern cvar_t vid_mouse_clickthrough;
151 extern cvar_t vid_grabkeyboard;
152 extern cvar_t vid_touchscreen;
153 extern cvar_t vid_touchscreen_showkeyboard;
154 extern cvar_t vid_touchscreen_supportshowkeyboard;
155 extern cvar_t vid_stick_mouse;
156 extern cvar_t vid_resizable;
157 extern cvar_t vid_desktopfullscreen;
159 extern cvar_t vid_ignore_taskbar;
161 extern cvar_t vid_minwidth;
162 extern cvar_t vid_minheight;
163 extern cvar_t vid_sRGB;
164 extern cvar_t vid_sRGB_fallback;
166 extern cvar_t gl_finish;
168 extern cvar_t v_gamma;
169 extern cvar_t v_contrast;
170 extern cvar_t v_brightness;
171 extern cvar_t v_color_enable;
172 extern cvar_t v_color_black_r;
173 extern cvar_t v_color_black_g;
174 extern cvar_t v_color_black_b;
175 extern cvar_t v_color_grey_r;
176 extern cvar_t v_color_grey_g;
177 extern cvar_t v_color_grey_b;
178 extern cvar_t v_color_white_r;
179 extern cvar_t v_color_white_g;
180 extern cvar_t v_color_white_b;
182 extern cvar_t gl_info_vendor;
183 extern cvar_t gl_info_renderer;
184 extern cvar_t gl_info_version;
185 extern cvar_t gl_info_extensions;
186 extern cvar_t gl_info_driver;
188 // brand of graphics chip
189 extern const char *gl_vendor;
190 // graphics chip model and other information
191 extern const char *gl_renderer;
192 // begins with 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0
193 extern const char *gl_version;
196 void *GL_GetProcAddress(const char *name);
197 qbool GL_CheckExtension(const char *name, const char *disableparm, int silent);
198 qbool GL_ExtensionSupported(const char *name);
200 void VID_Shared_Init(void);
202 void GL_InitFunctions(void);
205 void VID_ClearExtensions(void);
207 void VID_Init (void);
210 void VID_Shutdown (void);
211 // Called at shutdown
213 int VID_SetMode (int modenum);
214 // sets the mode; only used by the Quake engine for resetting to mode 0 (the
215 // base mode) on memory allocation failures
217 qbool VID_InitMode(viddef_mode_t *mode);
218 // allocates and opens an appropriate OpenGL context (and its window)
221 // updates cachegamma variables and bumps vid_gammatables_serial if anything changed
222 // (ONLY to be called from VID_Finish!)
223 void VID_UpdateGamma(void);
225 qbool VID_HasScreenKeyboardSupport(void);
226 void VID_ShowKeyboard(qbool show);
227 qbool VID_ShowingKeyboard(void);
229 void VID_SetMouse(qbool relative, qbool hidecursor);
230 void VID_Finish (void);
232 void VID_Restart_f(struct cmd_state_s *cmd);
234 void VID_Start(void);
237 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
238 extern qbool 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
239 void VID_BuildGammaTables(unsigned short *ramps, int rampsize); // builds the current gamma tables into an array (needs 3*rampsize items)
240 void VID_ApplyGammaToColor(const float *rgb, float *out); // applies current gamma settings to a color (0-1 range)
244 int width, height, bpp, refreshrate;
245 int pixelheight_num, pixelheight_denom;
248 vid_mode_t VID_GetDesktopMode(void);
249 size_t VID_ListModes(vid_mode_t *modes, size_t maxcount);
250 size_t VID_SortModes(vid_mode_t *modes, size_t count, qbool usebpp, qbool userefreshrate, qbool useaspect);
251 void VID_Soft_SharedSetup(void);