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 16
31 typedef enum renderpath_e
38 typedef struct viddef_support_s
40 qboolean gl20shaders130; // indicates glBindFragDataLocation is available
41 int glshaderversion; // typical values: 100 110 120 130 140 ...
42 qboolean amd_texture_texture4;
43 qboolean arb_draw_buffers;
44 qboolean arb_occlusion_query;
45 qboolean arb_query_buffer_object;
46 qboolean arb_texture_compression;
47 qboolean arb_texture_gather;
48 qboolean ext_blend_minmax;
49 qboolean ext_blend_subtract;
50 qboolean ext_blend_func_separate;
51 qboolean ext_packed_depth_stencil;
52 qboolean ext_texture_compression_s3tc;
53 qboolean ext_texture_filter_anisotropic;
54 qboolean ext_texture_srgb;
55 qboolean arb_texture_float;
56 qboolean arb_half_float_pixel;
57 qboolean arb_half_float_vertex;
58 qboolean arb_multisample;
62 typedef struct viddef_mode_s
69 qboolean userefreshrate;
70 qboolean stereobuffer;
75 typedef struct viddef_s
77 // these are set by VID_Mode
79 // used in many locations in the renderer
85 qboolean userefreshrate;
86 qboolean stereobuffer;
89 qboolean sRGB2D; // whether 2D rendering is sRGB corrected (based on sRGBcapable2D)
90 qboolean sRGB3D; // whether 3D rendering is sRGB corrected (based on sRGBcapable3D)
91 qboolean sRGBcapable2D; // whether 2D rendering can be sRGB corrected (renderpath)
92 qboolean sRGBcapable3D; // whether 3D rendering can be sRGB corrected (renderpath)
94 renderpath_t renderpath;
95 qboolean allowalphatocoverage; // indicates the GL_AlphaToCoverage function works on this renderpath and framebuffer
97 unsigned int texunits;
98 unsigned int teximageunits;
99 unsigned int texarrayunits;
100 unsigned int drawrangeelements_maxvertices;
101 unsigned int drawrangeelements_maxindices;
103 unsigned int maxtexturesize_2d;
104 unsigned int maxtexturesize_3d;
105 unsigned int maxtexturesize_cubemap;
106 unsigned int max_anisotropy;
107 unsigned int maxdrawbuffers;
109 viddef_support_t support;
111 int forcetextype; // always use GL_BGRA for D3D, always use GL_RGBA for GLES, etc
114 // global video state
116 extern void (*vid_menudrawfn)(void);
117 extern void (*vid_menukeyfn)(int key);
119 #define MAXJOYAXIS 16
120 // if this is changed, the corresponding code in vid_shared.c must be updated
121 #define MAXJOYBUTTON 36
122 typedef struct vid_joystate_s
124 float axis[MAXJOYAXIS]; // -1 to +1
125 unsigned char button[MAXJOYBUTTON]; // 0 or 1
126 qboolean is360; // indicates this joystick is a Microsoft Xbox 360 Controller For Windows
130 extern vid_joystate_t vid_joystate;
132 extern cvar_t joy_index;
133 extern cvar_t joy_enable;
134 extern cvar_t joy_detected;
135 extern cvar_t joy_active;
137 float VID_JoyState_GetAxis(const vid_joystate_t *joystate, int axis, float sensitivity, float deadzone);
138 void VID_ApplyJoyState(vid_joystate_t *joystate);
139 void VID_BuildJoyState(vid_joystate_t *joystate);
140 void VID_Shared_BuildJoyState_Begin(vid_joystate_t *joystate);
141 void VID_Shared_BuildJoyState_Finish(vid_joystate_t *joystate);
142 int VID_Shared_SetJoystick(int index);
143 qboolean VID_JoyBlockEmulatedKeys(int keycode);
144 void VID_EnableJoystick(qboolean enable);
146 extern qboolean vid_hidden;
147 extern qboolean vid_activewindow;
148 extern qboolean vid_supportrefreshrate;
150 extern cvar_t vid_fullscreen;
151 extern cvar_t vid_width;
152 extern cvar_t vid_height;
153 extern cvar_t vid_bitsperpixel;
154 extern cvar_t vid_samples;
155 extern cvar_t vid_refreshrate;
156 extern cvar_t vid_userefreshrate;
157 extern cvar_t vid_touchscreen_density;
158 extern cvar_t vid_touchscreen_xdpi;
159 extern cvar_t vid_touchscreen_ydpi;
160 extern cvar_t vid_vsync;
161 extern cvar_t vid_mouse;
162 extern cvar_t vid_grabkeyboard;
163 extern cvar_t vid_touchscreen;
164 extern cvar_t vid_touchscreen_showkeyboard;
165 extern cvar_t vid_touchscreen_supportshowkeyboard;
166 extern cvar_t vid_stick_mouse;
167 extern cvar_t vid_resizable;
168 extern cvar_t vid_desktopfullscreen;
169 extern cvar_t vid_minwidth;
170 extern cvar_t vid_minheight;
171 extern cvar_t vid_sRGB;
172 extern cvar_t vid_sRGB_fallback;
174 extern cvar_t gl_finish;
176 extern cvar_t v_gamma;
177 extern cvar_t v_contrast;
178 extern cvar_t v_brightness;
179 extern cvar_t v_color_enable;
180 extern cvar_t v_color_black_r;
181 extern cvar_t v_color_black_g;
182 extern cvar_t v_color_black_b;
183 extern cvar_t v_color_grey_r;
184 extern cvar_t v_color_grey_g;
185 extern cvar_t v_color_grey_b;
186 extern cvar_t v_color_white_r;
187 extern cvar_t v_color_white_g;
188 extern cvar_t v_color_white_b;
190 // brand of graphics chip
191 extern const char *gl_vendor;
192 // graphics chip model and other information
193 extern const char *gl_renderer;
194 // begins with 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0
195 extern const char *gl_version;
196 // extensions list, space separated
197 extern const char *gl_extensions;
199 extern const char *gl_platform;
200 // another extensions list, containing platform-specific extensions that are
201 // not in the main list
202 extern const char *gl_platformextensions;
203 // name of driver library (opengl32.dll, libGL.so.1, or whatever)
204 extern char gl_driver[256];
206 void *GL_GetProcAddress(const char *name);
207 qboolean GL_CheckExtension(const char *minglver_or_ext, const dllfunction_t *funcs, const char *disableparm, int silent);
209 void VID_Shared_Init(void);
213 void VID_ClearExtensions(void);
214 void VID_CheckExtensions(void);
216 void VID_Init (void);
219 void VID_Shutdown (void);
220 // Called at shutdown
222 int VID_SetMode (int modenum);
223 // sets the mode; only used by the Quake engine for resetting to mode 0 (the
224 // base mode) on memory allocation failures
226 qboolean VID_InitMode(viddef_mode_t *mode);
227 // allocates and opens an appropriate OpenGL context (and its window)
230 // updates cachegamma variables and bumps vid_gammatables_serial if anything changed
231 // (ONLY to be called from VID_Finish!)
232 void VID_UpdateGamma(void);
234 qboolean VID_HasScreenKeyboardSupport(void);
235 void VID_ShowKeyboard(qboolean show);
236 qboolean VID_ShowingKeyboard(void);
238 void VID_SetMouse (qboolean fullscreengrab, qboolean relative, qboolean hidecursor);
239 void VID_Finish (void);
241 void VID_Restart_f(void);
243 void VID_Start(void);
246 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
247 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
248 void VID_BuildGammaTables(unsigned short *ramps, int rampsize); // builds the current gamma tables into an array (needs 3*rampsize items)
249 void VID_ApplyGammaToColor(const float *rgb, float *out); // applies current gamma settings to a color (0-1 range)
253 int width, height, bpp, refreshrate;
254 int pixelheight_num, pixelheight_denom;
257 vid_mode_t *VID_GetDesktopMode(void);
258 size_t VID_ListModes(vid_mode_t *modes, size_t maxcount);
259 size_t VID_SortModes(vid_mode_t *modes, size_t count, qboolean usebpp, qboolean userefreshrate, qboolean useaspect);
260 void VID_Soft_SharedSetup(void);