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
41 qboolean gl20shaders130; // indicates glBindFragDataLocation is available
42 int glshaderversion; // typical values: 100 110 120 130 140 ...
43 qboolean amd_texture_texture4;
44 qboolean arb_depth_texture;
45 qboolean arb_draw_buffers;
46 qboolean arb_framebuffer_object;
47 qboolean arb_multitexture;
48 qboolean arb_occlusion_query;
49 qboolean arb_query_buffer_object;
51 qboolean arb_texture_compression;
52 qboolean arb_texture_cube_map;
53 qboolean arb_texture_env_combine;
54 qboolean arb_texture_gather;
55 qboolean arb_texture_non_power_of_two;
56 qboolean arb_vertex_buffer_object;
57 qboolean arb_uniform_buffer_object;
58 qboolean ext_blend_minmax;
59 qboolean ext_blend_subtract;
60 qboolean ext_blend_func_separate;
61 qboolean ext_draw_range_elements;
62 qboolean ext_framebuffer_object;
63 qboolean ext_packed_depth_stencil;
64 qboolean ext_texture_3d;
65 qboolean ext_texture_compression_s3tc;
66 qboolean ext_texture_edge_clamp;
67 qboolean ext_texture_filter_anisotropic;
68 qboolean ext_texture_srgb;
69 qboolean arb_texture_float;
70 qboolean arb_half_float_pixel;
71 qboolean arb_half_float_vertex;
72 qboolean arb_multisample;
76 typedef struct viddef_mode_s
83 qboolean userefreshrate;
84 qboolean stereobuffer;
89 typedef struct viddef_s
91 // these are set by VID_Mode
93 // used in many locations in the renderer
99 qboolean userefreshrate;
100 qboolean stereobuffer;
103 qboolean sRGB2D; // whether 2D rendering is sRGB corrected (based on sRGBcapable2D)
104 qboolean sRGB3D; // whether 3D rendering is sRGB corrected (based on sRGBcapable3D)
105 qboolean sRGBcapable2D; // whether 2D rendering can be sRGB corrected (renderpath)
106 qboolean sRGBcapable3D; // whether 3D rendering can be sRGB corrected (renderpath)
108 renderpath_t renderpath;
109 qboolean forcevbo; // some renderpaths can not operate without it
110 qboolean allowalphatocoverage; // indicates the GL_AlphaToCoverage function works on this renderpath and framebuffer
112 unsigned int texunits;
113 unsigned int teximageunits;
114 unsigned int texarrayunits;
115 unsigned int drawrangeelements_maxvertices;
116 unsigned int drawrangeelements_maxindices;
118 unsigned int maxtexturesize_2d;
119 unsigned int maxtexturesize_3d;
120 unsigned int maxtexturesize_cubemap;
121 unsigned int max_anisotropy;
122 unsigned int maxdrawbuffers;
124 viddef_support_t support;
126 int forcetextype; // always use GL_BGRA for D3D, always use GL_RGBA for GLES, etc
129 // global video state
131 extern void (*vid_menudrawfn)(void);
132 extern void (*vid_menukeyfn)(int key);
134 #define MAXJOYAXIS 16
135 // if this is changed, the corresponding code in vid_shared.c must be updated
136 #define MAXJOYBUTTON 36
137 typedef struct vid_joystate_s
139 float axis[MAXJOYAXIS]; // -1 to +1
140 unsigned char button[MAXJOYBUTTON]; // 0 or 1
141 qboolean is360; // indicates this joystick is a Microsoft Xbox 360 Controller For Windows
145 extern vid_joystate_t vid_joystate;
147 extern cvar_t joy_index;
148 extern cvar_t joy_enable;
149 extern cvar_t joy_detected;
150 extern cvar_t joy_active;
152 float VID_JoyState_GetAxis(const vid_joystate_t *joystate, int axis, float sensitivity, float deadzone);
153 void VID_ApplyJoyState(vid_joystate_t *joystate);
154 void VID_BuildJoyState(vid_joystate_t *joystate);
155 void VID_Shared_BuildJoyState_Begin(vid_joystate_t *joystate);
156 void VID_Shared_BuildJoyState_Finish(vid_joystate_t *joystate);
157 int VID_Shared_SetJoystick(int index);
158 qboolean VID_JoyBlockEmulatedKeys(int keycode);
159 void VID_EnableJoystick(qboolean enable);
161 extern qboolean vid_hidden;
162 extern qboolean vid_activewindow;
163 extern qboolean vid_supportrefreshrate;
165 extern cvar_t vid_fullscreen;
166 extern cvar_t vid_width;
167 extern cvar_t vid_height;
168 extern cvar_t vid_bitsperpixel;
169 extern cvar_t vid_samples;
170 extern cvar_t vid_refreshrate;
171 extern cvar_t vid_userefreshrate;
172 extern cvar_t vid_touchscreen_density;
173 extern cvar_t vid_touchscreen_xdpi;
174 extern cvar_t vid_touchscreen_ydpi;
175 extern cvar_t vid_vsync;
176 extern cvar_t vid_mouse;
177 extern cvar_t vid_grabkeyboard;
178 extern cvar_t vid_touchscreen;
179 extern cvar_t vid_touchscreen_showkeyboard;
180 extern cvar_t vid_touchscreen_supportshowkeyboard;
181 extern cvar_t vid_stick_mouse;
182 extern cvar_t vid_resizable;
183 extern cvar_t vid_desktopfullscreen;
184 extern cvar_t vid_minwidth;
185 extern cvar_t vid_minheight;
186 extern cvar_t vid_sRGB;
187 extern cvar_t vid_sRGB_fallback;
189 extern cvar_t gl_finish;
191 extern cvar_t v_gamma;
192 extern cvar_t v_contrast;
193 extern cvar_t v_brightness;
194 extern cvar_t v_color_enable;
195 extern cvar_t v_color_black_r;
196 extern cvar_t v_color_black_g;
197 extern cvar_t v_color_black_b;
198 extern cvar_t v_color_grey_r;
199 extern cvar_t v_color_grey_g;
200 extern cvar_t v_color_grey_b;
201 extern cvar_t v_color_white_r;
202 extern cvar_t v_color_white_g;
203 extern cvar_t v_color_white_b;
205 // brand of graphics chip
206 extern const char *gl_vendor;
207 // graphics chip model and other information
208 extern const char *gl_renderer;
209 // begins with 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0
210 extern const char *gl_version;
211 // extensions list, space separated
212 extern const char *gl_extensions;
214 extern const char *gl_platform;
215 // another extensions list, containing platform-specific extensions that are
216 // not in the main list
217 extern const char *gl_platformextensions;
218 // name of driver library (opengl32.dll, libGL.so.1, or whatever)
219 extern char gl_driver[256];
221 void *GL_GetProcAddress(const char *name);
222 qboolean GL_CheckExtension(const char *minglver_or_ext, const dllfunction_t *funcs, const char *disableparm, int silent);
224 void VID_Shared_Init(void);
228 void VID_ClearExtensions(void);
229 void VID_CheckExtensions(void);
231 void VID_Init (void);
234 void VID_Shutdown (void);
235 // Called at shutdown
237 int VID_SetMode (int modenum);
238 // sets the mode; only used by the Quake engine for resetting to mode 0 (the
239 // base mode) on memory allocation failures
241 qboolean VID_InitMode(viddef_mode_t *mode);
242 // allocates and opens an appropriate OpenGL context (and its window)
245 // updates cachegamma variables and bumps vid_gammatables_serial if anything changed
246 // (ONLY to be called from VID_Finish!)
247 void VID_UpdateGamma(void);
249 qboolean VID_HasScreenKeyboardSupport(void);
250 void VID_ShowKeyboard(qboolean show);
251 qboolean VID_ShowingKeyboard(void);
253 void VID_SetMouse (qboolean fullscreengrab, qboolean relative, qboolean hidecursor);
254 void VID_Finish (void);
256 void VID_Restart_f(void);
258 void VID_Start(void);
261 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
262 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
263 void VID_BuildGammaTables(unsigned short *ramps, int rampsize); // builds the current gamma tables into an array (needs 3*rampsize items)
264 void VID_ApplyGammaToColor(const float *rgb, float *out); // applies current gamma settings to a color (0-1 range)
268 int width, height, bpp, refreshrate;
269 int pixelheight_num, pixelheight_denom;
272 vid_mode_t *VID_GetDesktopMode(void);
273 size_t VID_ListModes(vid_mode_t *modes, size_t maxcount);
274 size_t VID_SortModes(vid_mode_t *modes, size_t count, qboolean usebpp, qboolean userefreshrate, qboolean useaspect);
275 void VID_Soft_SharedSetup(void);