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 glshaderversion; // this is at least 150 (GL 3.2)
45 qbool amd_texture_texture4;
46 qbool arb_texture_gather;
47 qbool ext_texture_compression_s3tc;
48 qbool ext_texture_filter_anisotropic;
49 qbool ext_texture_srgb;
50 qbool arb_debug_output;
54 typedef struct viddef_mode_s
67 typedef struct viddef_s
69 // these are set by VID_Mode
71 // used in many locations in the renderer
81 qbool sRGB2D; // whether 2D rendering is sRGB corrected (based on sRGBcapable2D)
82 qbool sRGB3D; // whether 3D rendering is sRGB corrected (based on sRGBcapable3D)
83 qbool sRGBcapable2D; // whether 2D rendering can be sRGB corrected (renderpath)
84 qbool sRGBcapable3D; // whether 3D rendering can be sRGB corrected (renderpath)
86 renderpath_t renderpath;
87 qbool allowalphatocoverage; // indicates the GL_AlphaToCoverage function works on this renderpath and framebuffer
89 unsigned int maxtexturesize_2d;
90 unsigned int maxtexturesize_3d;
91 unsigned int maxtexturesize_cubemap;
92 unsigned int max_anisotropy;
93 unsigned int maxdrawbuffers;
95 viddef_support_t support;
97 int forcetextype; // always use GL_BGRA for D3D, always use GL_RGBA for GLES, etc
100 // global video state
102 extern void (*vid_menudrawfn)(void);
103 extern void (*vid_menukeyfn)(int key);
105 #define MAXJOYAXIS 16
106 // if this is changed, the corresponding code in vid_shared.c must be updated
107 #define MAXJOYBUTTON 36
108 typedef struct vid_joystate_s
110 float axis[MAXJOYAXIS]; // -1 to +1
111 unsigned char button[MAXJOYBUTTON]; // 0 or 1
112 qbool is360; // indicates this joystick is a Microsoft Xbox 360 Controller For Windows
116 extern vid_joystate_t vid_joystate;
118 extern struct cvar_s joy_index;
119 extern struct cvar_s joy_enable;
120 extern struct cvar_s joy_detected;
121 extern struct cvar_s joy_active;
123 float VID_JoyState_GetAxis(const vid_joystate_t *joystate, int axis, float sensitivity, float deadzone);
124 void VID_ApplyJoyState(vid_joystate_t *joystate);
125 void VID_BuildJoyState(vid_joystate_t *joystate);
126 void VID_Shared_BuildJoyState_Begin(vid_joystate_t *joystate);
127 void VID_Shared_BuildJoyState_Finish(vid_joystate_t *joystate);
128 int VID_Shared_SetJoystick(int index);
129 qbool VID_JoyBlockEmulatedKeys(int keycode);
130 void VID_EnableJoystick(qbool enable);
132 extern qbool vid_hidden;
133 extern qbool vid_activewindow;
134 extern qbool vid_supportrefreshrate;
136 extern struct cvar_s vid_fullscreen;
137 extern struct cvar_s vid_borderless;
138 extern struct cvar_s vid_width;
139 extern struct cvar_s vid_height;
140 extern struct cvar_s vid_bitsperpixel;
141 extern struct cvar_s vid_samples;
142 extern struct cvar_s vid_refreshrate;
143 extern struct cvar_s vid_userefreshrate;
144 extern struct cvar_s vid_touchscreen_density;
145 extern struct cvar_s vid_touchscreen_xdpi;
146 extern struct cvar_s vid_touchscreen_ydpi;
147 extern struct cvar_s vid_vsync;
148 extern struct cvar_s vid_mouse;
149 extern struct cvar_s vid_mouse_clickthrough;
150 extern struct cvar_s vid_grabkeyboard;
151 extern struct cvar_s vid_touchscreen;
152 extern struct cvar_s vid_touchscreen_showkeyboard;
153 extern struct cvar_s vid_touchscreen_supportshowkeyboard;
154 extern struct cvar_s vid_stick_mouse;
155 extern struct cvar_s vid_resizable;
156 extern struct cvar_s vid_desktopfullscreen;
158 extern struct cvar_s vid_ignore_taskbar;
160 extern struct cvar_s vid_minwidth;
161 extern struct cvar_s vid_minheight;
162 extern struct cvar_s vid_sRGB;
163 extern struct cvar_s vid_sRGB_fallback;
165 extern struct cvar_s gl_finish;
167 extern struct cvar_s v_gamma;
168 extern struct cvar_s v_contrast;
169 extern struct cvar_s v_brightness;
170 extern struct cvar_s v_color_enable;
171 extern struct cvar_s v_color_black_r;
172 extern struct cvar_s v_color_black_g;
173 extern struct cvar_s v_color_black_b;
174 extern struct cvar_s v_color_grey_r;
175 extern struct cvar_s v_color_grey_g;
176 extern struct cvar_s v_color_grey_b;
177 extern struct cvar_s v_color_white_r;
178 extern struct cvar_s v_color_white_g;
179 extern struct cvar_s v_color_white_b;
181 // brand of graphics chip
182 extern const char *gl_vendor;
183 // graphics chip model and other information
184 extern const char *gl_renderer;
185 // begins with 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0
186 extern const char *gl_version;
187 // extensions list, space separated
188 extern const char *gl_extensions;
190 extern const char *gl_platform;
191 // name of driver library (opengl32.dll, libGL.so.1, or whatever)
192 extern char gl_driver[256];
194 void *GL_GetProcAddress(const char *name);
195 qbool GL_CheckExtension(const char *name, const char *disableparm, int silent);
196 qbool GL_ExtensionSupported(const char *name);
198 void VID_Shared_Init(void);
202 void VID_ClearExtensions(void);
204 void VID_Init (void);
207 void VID_Shutdown (void);
208 // Called at shutdown
210 int VID_SetMode (int modenum);
211 // sets the mode; only used by the Quake engine for resetting to mode 0 (the
212 // base mode) on memory allocation failures
214 qbool VID_InitMode(viddef_mode_t *mode);
215 // allocates and opens an appropriate OpenGL context (and its window)
218 // updates cachegamma variables and bumps vid_gammatables_serial if anything changed
219 // (ONLY to be called from VID_Finish!)
220 void VID_UpdateGamma(void);
222 qbool VID_HasScreenKeyboardSupport(void);
223 void VID_ShowKeyboard(qbool show);
224 qbool VID_ShowingKeyboard(void);
226 void VID_SetMouse(qbool relative, qbool hidecursor);
227 void VID_Finish (void);
229 void VID_Restart_f(struct cmd_state_s *cmd);
231 void VID_Start(void);
234 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
235 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
236 void VID_BuildGammaTables(unsigned short *ramps, int rampsize); // builds the current gamma tables into an array (needs 3*rampsize items)
237 void VID_ApplyGammaToColor(const float *rgb, float *out); // applies current gamma settings to a color (0-1 range)
241 int width, height, bpp, refreshrate;
242 int pixelheight_num, pixelheight_denom;
245 vid_mode_t *VID_GetDesktopMode(void);
246 size_t VID_ListModes(vid_mode_t *modes, size_t maxcount);
247 size_t VID_SortModes(vid_mode_t *modes, size_t count, qbool usebpp, qbool userefreshrate, qbool useaspect);
248 void VID_Soft_SharedSetup(void);