8 // LordHavoc: these are only set in wgl
9 qboolean isG200 = false; // LordHavoc: the Matrox G200 can't do per pixel alpha, and it uses a D3D driver for GL... ugh...
10 qboolean isRagePro = false; // LordHavoc: the ATI Rage Pro has limitations with per pixel alpha (the color scaler does not apply to per pixel alpha images...), although not as bad as a G200.
12 // AK FIXME -> input_dest
13 qboolean in_client_mouse = true;
15 // AK where should it be placed ?
16 float in_mouse_x, in_mouse_y;
18 // value of GL_MAX_TEXTURE_<various>_SIZE
19 int gl_max_texture_size = 0;
20 int gl_max_3d_texture_size = 0;
21 int gl_max_cube_map_texture_size = 0;
22 // GL_ARB_multitexture
23 int gl_textureunits = 1;
24 // GL_ARB_texture_env_combine or GL_EXT_texture_env_combine
25 int gl_combine_extension = false;
26 // GL_EXT_compiled_vertex_array
27 int gl_supportslockarrays = false;
28 // GLX_SGI_swap_control or WGL_EXT_swap_control
29 int gl_videosyncavailable = false;
31 int gl_stencil = false;
32 // 3D textures available
33 int gl_texture3d = false;
34 // GL_ARB_texture_cubemap
35 int gl_texturecubemap = false;
36 // GL_ARB_texture_non_power_of_two
37 int gl_support_arb_texture_non_power_of_two = false;
38 // GL_ARB_texture_env_dot3
39 int gl_dot3arb = false;
40 // GL_SGIS_texture_edge_clamp
41 int gl_support_clamptoedge = false;
42 // GL_EXT_texture_filter_anisotropic
43 int gl_support_anisotropy = false;
44 int gl_max_anisotropy = 1;
45 // GL_EXT_stencil_two_side
46 int gl_support_stenciltwoside = false;
47 // GL_ARB_shader_objects
48 int gl_support_shader_objects = false;
49 // GL_ARB_shading_language_100
50 int gl_support_shading_language_100 = false;
51 // GL_ARB_vertex_shader
52 int gl_support_vertex_shader = false;
53 // GL_ARB_fragment_shader
54 int gl_support_fragment_shader = false;
56 // LordHavoc: if window is hidden, don't update screen
57 qboolean vid_hidden = true;
58 // LordHavoc: if window is not the active window, don't hog as much CPU time,
59 // let go of the mouse, turn off sound, and restore system gamma ramps...
60 qboolean vid_activewindow = true;
62 // we don't know until we try it!
63 cvar_t vid_hardwaregammasupported = {CVAR_READONLY,"vid_hardwaregammasupported","1", "indicates whether hardware gamma is supported (updated by attempts to set hardware gamma ramps)"};
64 // whether hardware gamma ramps are currently in effect
65 qboolean vid_usinghwgamma = false;
67 int vid_gammarampsize = 0;
68 unsigned short *vid_gammaramps = NULL;
69 unsigned short *vid_systemgammaramps = NULL;
71 cvar_t vid_fullscreen = {CVAR_SAVE, "vid_fullscreen", "1", "use fullscreen (1) or windowed (0)"};
72 cvar_t vid_width = {CVAR_SAVE, "vid_width", "640", "resolution"};
73 cvar_t vid_height = {CVAR_SAVE, "vid_height", "480", "resolution"};
74 cvar_t vid_bitsperpixel = {CVAR_SAVE, "vid_bitsperpixel", "32", "how many bits per pixel to render at (32 or 16, 32 is recommended)"};
75 cvar_t vid_refreshrate = {CVAR_SAVE, "vid_refreshrate", "60", "refresh rate to use, in hz (higher values flicker less, if supported by your monitor)"};
76 cvar_t vid_stereobuffer = {CVAR_SAVE, "vid_stereobuffer", "0", "enables 'quad-buffered' stereo rendering for stereo shutterglasses, HMD (head mounted display) devices, or polarized stereo LCDs, if supported by your drivers"};
78 cvar_t vid_vsync = {CVAR_SAVE, "vid_vsync", "0", "sync to vertical blank, prevents 'tearing' (seeing part of one frame and part of another on the screen at the same time), automatically disabled when doing timedemo benchmarks"};
79 cvar_t vid_mouse = {CVAR_SAVE, "vid_mouse", "1", "whether to use the mouse in windowed mode (fullscreen always does)"};
80 cvar_t vid_minwidth = {0, "vid_minwidth", "0", "minimum vid_width that is acceptable (to be set in default.cfg in mods)"};
81 cvar_t vid_minheight = {0, "vid_minheight", "0", "minimum vid_height that is acceptable (to be set in default.cfg in mods)"};
82 cvar_t gl_combine = {0, "gl_combine", "1", "faster rendering by using GL_ARB_texture_env_combine extension (part of OpenGL 1.3 and above)"};
83 cvar_t gl_finish = {0, "gl_finish", "0", "make the cpu wait for the graphics processor at the end of each rendered frame (can help with strange input or video lag problems on some machines)"};
85 cvar_t v_gamma = {CVAR_SAVE, "v_gamma", "1", "inverse gamma correction value, a brightness effect that does not affect white or black, and tends to make the image grey and dull"};
86 cvar_t v_contrast = {CVAR_SAVE, "v_contrast", "1", "brightness of white (values above 1 give a brighter image with increased color saturation, unlike v_gamma)"};
87 cvar_t v_brightness = {CVAR_SAVE, "v_brightness", "0", "brightness of black, useful for monitors that are too dark"};
88 cvar_t v_color_enable = {CVAR_SAVE, "v_color_enable", "0", "enables black-grey-white color correction curve controls"};
89 cvar_t v_color_black_r = {CVAR_SAVE, "v_color_black_r", "0", "desired color of black"};
90 cvar_t v_color_black_g = {CVAR_SAVE, "v_color_black_g", "0", "desired color of black"};
91 cvar_t v_color_black_b = {CVAR_SAVE, "v_color_black_b", "0", "desired color of black"};
92 cvar_t v_color_grey_r = {CVAR_SAVE, "v_color_grey_r", "0.5", "desired color of grey"};
93 cvar_t v_color_grey_g = {CVAR_SAVE, "v_color_grey_g", "0.5", "desired color of grey"};
94 cvar_t v_color_grey_b = {CVAR_SAVE, "v_color_grey_b", "0.5", "desired color of grey"};
95 cvar_t v_color_white_r = {CVAR_SAVE, "v_color_white_r", "1", "desired color of white"};
96 cvar_t v_color_white_g = {CVAR_SAVE, "v_color_white_g", "1", "desired color of white"};
97 cvar_t v_color_white_b = {CVAR_SAVE, "v_color_white_b", "1", "desired color of white"};
98 cvar_t v_hwgamma = {CVAR_SAVE, "v_hwgamma", "1", "enables use of hardware gamma correction ramps if available (note: does not work very well on Windows2000 and above), values are 0 = off, 1 = attempt to use hardware gamma, 2 = use hardware gamma whether it works or not"};
99 cvar_t v_psycho = {0, "v_psycho", "0", "easter egg (does not work on Windows2000 or above)"};
101 // brand of graphics chip
102 const char *gl_vendor;
103 // graphics chip model and other information
104 const char *gl_renderer;
105 // begins with 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0
106 const char *gl_version;
107 // extensions list, space separated
108 const char *gl_extensions;
110 const char *gl_platform;
111 // another extensions list, containing platform-specific extensions that are
112 // not in the main list
113 const char *gl_platformextensions;
114 // name of driver library (opengl32.dll, libGL.so.1, or whatever)
117 // GL_ARB_multitexture
118 void (GLAPIENTRY *qglMultiTexCoord1f) (GLenum, GLfloat);
119 void (GLAPIENTRY *qglMultiTexCoord2f) (GLenum, GLfloat, GLfloat);
120 void (GLAPIENTRY *qglMultiTexCoord3f) (GLenum, GLfloat, GLfloat, GLfloat);
121 void (GLAPIENTRY *qglMultiTexCoord4f) (GLenum, GLfloat, GLfloat, GLfloat, GLfloat);
122 void (GLAPIENTRY *qglActiveTexture) (GLenum);
123 void (GLAPIENTRY *qglClientActiveTexture) (GLenum);
125 // GL_EXT_compiled_vertex_array
126 void (GLAPIENTRY *qglLockArraysEXT) (GLint first, GLint count);
127 void (GLAPIENTRY *qglUnlockArraysEXT) (void);
129 // general GL functions
131 void (GLAPIENTRY *qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
133 void (GLAPIENTRY *qglClear)(GLbitfield mask);
135 void (GLAPIENTRY *qglAlphaFunc)(GLenum func, GLclampf ref);
136 void (GLAPIENTRY *qglBlendFunc)(GLenum sfactor, GLenum dfactor);
137 void (GLAPIENTRY *qglCullFace)(GLenum mode);
139 void (GLAPIENTRY *qglDrawBuffer)(GLenum mode);
140 void (GLAPIENTRY *qglReadBuffer)(GLenum mode);
141 void (GLAPIENTRY *qglEnable)(GLenum cap);
142 void (GLAPIENTRY *qglDisable)(GLenum cap);
143 GLboolean (GLAPIENTRY *qglIsEnabled)(GLenum cap);
145 void (GLAPIENTRY *qglEnableClientState)(GLenum cap);
146 void (GLAPIENTRY *qglDisableClientState)(GLenum cap);
148 void (GLAPIENTRY *qglGetBooleanv)(GLenum pname, GLboolean *params);
149 void (GLAPIENTRY *qglGetDoublev)(GLenum pname, GLdouble *params);
150 void (GLAPIENTRY *qglGetFloatv)(GLenum pname, GLfloat *params);
151 void (GLAPIENTRY *qglGetIntegerv)(GLenum pname, GLint *params);
153 GLenum (GLAPIENTRY *qglGetError)(void);
154 const GLubyte* (GLAPIENTRY *qglGetString)(GLenum name);
155 void (GLAPIENTRY *qglFinish)(void);
156 void (GLAPIENTRY *qglFlush)(void);
158 void (GLAPIENTRY *qglClearDepth)(GLclampd depth);
159 void (GLAPIENTRY *qglDepthFunc)(GLenum func);
160 void (GLAPIENTRY *qglDepthMask)(GLboolean flag);
161 void (GLAPIENTRY *qglDepthRange)(GLclampd near_val, GLclampd far_val);
162 void (GLAPIENTRY *qglColorMask)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
164 void (GLAPIENTRY *qglDrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
165 void (GLAPIENTRY *qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
166 void (GLAPIENTRY *qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
167 void (GLAPIENTRY *qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *ptr);
168 void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
169 void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
170 void (GLAPIENTRY *qglArrayElement)(GLint i);
172 void (GLAPIENTRY *qglColor4f)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
173 void (GLAPIENTRY *qglTexCoord1f)(GLfloat s);
174 void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
175 void (GLAPIENTRY *qglTexCoord3f)(GLfloat s, GLfloat t, GLfloat r);
176 void (GLAPIENTRY *qglTexCoord4f)(GLfloat s, GLfloat t, GLfloat r, GLfloat q);
177 void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
178 void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
179 void (GLAPIENTRY *qglBegin)(GLenum mode);
180 void (GLAPIENTRY *qglEnd)(void);
182 void (GLAPIENTRY *qglMatrixMode)(GLenum mode);
183 void (GLAPIENTRY *qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
184 void (GLAPIENTRY *qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
185 void (GLAPIENTRY *qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
186 void (GLAPIENTRY *qglPushMatrix)(void);
187 void (GLAPIENTRY *qglPopMatrix)(void);
188 void (GLAPIENTRY *qglLoadIdentity)(void);
189 void (GLAPIENTRY *qglLoadMatrixd)(const GLdouble *m);
190 void (GLAPIENTRY *qglLoadMatrixf)(const GLfloat *m);
191 void (GLAPIENTRY *qglMultMatrixd)(const GLdouble *m);
192 void (GLAPIENTRY *qglMultMatrixf)(const GLfloat *m);
193 void (GLAPIENTRY *qglRotated)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
194 void (GLAPIENTRY *qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
195 void (GLAPIENTRY *qglScaled)(GLdouble x, GLdouble y, GLdouble z);
196 void (GLAPIENTRY *qglScalef)(GLfloat x, GLfloat y, GLfloat z);
197 void (GLAPIENTRY *qglTranslated)(GLdouble x, GLdouble y, GLdouble z);
198 void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
200 void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
202 void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
203 void (GLAPIENTRY *qglStencilMask)(GLuint mask);
204 void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
205 void (GLAPIENTRY *qglClearStencil)(GLint s);
207 void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
208 void (GLAPIENTRY *qglTexEnvfv)(GLenum target, GLenum pname, const GLfloat *params);
209 void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
210 void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
211 void (GLAPIENTRY *qglTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
212 void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
214 void (GLAPIENTRY *qglGenTextures)(GLsizei n, GLuint *textures);
215 void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
216 void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
217 //void (GLAPIENTRY *qglPrioritizeTextures)(GLsizei n, const GLuint *textures, const GLclampf *priorities);
218 //GLboolean (GLAPIENTRY *qglAreTexturesResident)(GLsizei n, const GLuint *textures, GLboolean *residences);
219 GLboolean (GLAPIENTRY *qglIsTexture)(GLuint texture);
220 void (GLAPIENTRY *qglPixelStoref)(GLenum pname, GLfloat param);
221 void (GLAPIENTRY *qglPixelStorei)(GLenum pname, GLint param);
223 void (GLAPIENTRY *qglTexImage1D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
224 void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
225 void (GLAPIENTRY *qglTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels);
226 void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
227 void (GLAPIENTRY *qglCopyTexImage1D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
228 void (GLAPIENTRY *qglCopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
229 void (GLAPIENTRY *qglCopyTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
230 void (GLAPIENTRY *qglCopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
233 void (GLAPIENTRY *qglDrawRangeElementsEXT)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
235 //void (GLAPIENTRY *qglColorTableEXT)(int, int, int, int, int, const void *);
237 void (GLAPIENTRY *qglTexImage3D)(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
238 void (GLAPIENTRY *qglTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const GLvoid *pixels);
239 void (GLAPIENTRY *qglCopyTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
241 void (GLAPIENTRY *qglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
243 void (GLAPIENTRY *qglPolygonOffset)(GLfloat factor, GLfloat units);
244 void (GLAPIENTRY *qglPolygonMode)(GLenum face, GLenum mode);
245 void (GLAPIENTRY *qglPolygonStipple)(const GLubyte *mask);
247 //[515]: added on 29.07.2005
248 void (GLAPIENTRY *qglLineWidth)(GLfloat width);
249 void (GLAPIENTRY *qglPointSize)(GLfloat size);
251 void (GLAPIENTRY *qglActiveStencilFaceEXT)(GLenum);
253 void (GLAPIENTRY *qglDeleteObjectARB)(GLhandleARB obj);
254 GLhandleARB (GLAPIENTRY *qglGetHandleARB)(GLenum pname);
255 void (GLAPIENTRY *qglDetachObjectARB)(GLhandleARB containerObj, GLhandleARB attachedObj);
256 GLhandleARB (GLAPIENTRY *qglCreateShaderObjectARB)(GLenum shaderType);
257 void (GLAPIENTRY *qglShaderSourceARB)(GLhandleARB shaderObj, GLsizei count, const GLcharARB **string, const GLint *length);
258 void (GLAPIENTRY *qglCompileShaderARB)(GLhandleARB shaderObj);
259 GLhandleARB (GLAPIENTRY *qglCreateProgramObjectARB)(void);
260 void (GLAPIENTRY *qglAttachObjectARB)(GLhandleARB containerObj, GLhandleARB obj);
261 void (GLAPIENTRY *qglLinkProgramARB)(GLhandleARB programObj);
262 void (GLAPIENTRY *qglUseProgramObjectARB)(GLhandleARB programObj);
263 void (GLAPIENTRY *qglValidateProgramARB)(GLhandleARB programObj);
264 void (GLAPIENTRY *qglUniform1fARB)(GLint location, GLfloat v0);
265 void (GLAPIENTRY *qglUniform2fARB)(GLint location, GLfloat v0, GLfloat v1);
266 void (GLAPIENTRY *qglUniform3fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
267 void (GLAPIENTRY *qglUniform4fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
268 void (GLAPIENTRY *qglUniform1iARB)(GLint location, GLint v0);
269 void (GLAPIENTRY *qglUniform2iARB)(GLint location, GLint v0, GLint v1);
270 void (GLAPIENTRY *qglUniform3iARB)(GLint location, GLint v0, GLint v1, GLint v2);
271 void (GLAPIENTRY *qglUniform4iARB)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
272 void (GLAPIENTRY *qglUniform1fvARB)(GLint location, GLsizei count, const GLfloat *value);
273 void (GLAPIENTRY *qglUniform2fvARB)(GLint location, GLsizei count, const GLfloat *value);
274 void (GLAPIENTRY *qglUniform3fvARB)(GLint location, GLsizei count, const GLfloat *value);
275 void (GLAPIENTRY *qglUniform4fvARB)(GLint location, GLsizei count, const GLfloat *value);
276 void (GLAPIENTRY *qglUniform1ivARB)(GLint location, GLsizei count, const GLint *value);
277 void (GLAPIENTRY *qglUniform2ivARB)(GLint location, GLsizei count, const GLint *value);
278 void (GLAPIENTRY *qglUniform3ivARB)(GLint location, GLsizei count, const GLint *value);
279 void (GLAPIENTRY *qglUniform4ivARB)(GLint location, GLsizei count, const GLint *value);
280 void (GLAPIENTRY *qglUniformMatrix2fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
281 void (GLAPIENTRY *qglUniformMatrix3fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
282 void (GLAPIENTRY *qglUniformMatrix4fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
283 void (GLAPIENTRY *qglGetObjectParameterfvARB)(GLhandleARB obj, GLenum pname, GLfloat *params);
284 void (GLAPIENTRY *qglGetObjectParameterivARB)(GLhandleARB obj, GLenum pname, GLint *params);
285 void (GLAPIENTRY *qglGetInfoLogARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *infoLog);
286 void (GLAPIENTRY *qglGetAttachedObjectsARB)(GLhandleARB containerObj, GLsizei maxCount, GLsizei *count, GLhandleARB *obj);
287 GLint (GLAPIENTRY *qglGetUniformLocationARB)(GLhandleARB programObj, const GLcharARB *name);
288 void (GLAPIENTRY *qglGetActiveUniformARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
289 void (GLAPIENTRY *qglGetUniformfvARB)(GLhandleARB programObj, GLint location, GLfloat *params);
290 void (GLAPIENTRY *qglGetUniformivARB)(GLhandleARB programObj, GLint location, GLint *params);
291 void (GLAPIENTRY *qglGetShaderSourceARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *source);
293 //void (GLAPIENTRY *qglVertexAttrib1fARB)(GLuint index, GLfloat v0);
294 //void (GLAPIENTRY *qglVertexAttrib1sARB)(GLuint index, GLshort v0);
295 //void (GLAPIENTRY *qglVertexAttrib1dARB)(GLuint index, GLdouble v0);
296 //void (GLAPIENTRY *qglVertexAttrib2fARB)(GLuint index, GLfloat v0, GLfloat v1);
297 //void (GLAPIENTRY *qglVertexAttrib2sARB)(GLuint index, GLshort v0, GLshort v1);
298 //void (GLAPIENTRY *qglVertexAttrib2dARB)(GLuint index, GLdouble v0, GLdouble v1);
299 //void (GLAPIENTRY *qglVertexAttrib3fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2);
300 //void (GLAPIENTRY *qglVertexAttrib3sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2);
301 //void (GLAPIENTRY *qglVertexAttrib3dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2);
302 //void (GLAPIENTRY *qglVertexAttrib4fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
303 //void (GLAPIENTRY *qglVertexAttrib4sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2, GLshort v3);
304 //void (GLAPIENTRY *qglVertexAttrib4dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2, GLdouble v3);
305 //void (GLAPIENTRY *qglVertexAttrib4NubARB)(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
306 //void (GLAPIENTRY *qglVertexAttrib1fvARB)(GLuint index, const GLfloat *v);
307 //void (GLAPIENTRY *qglVertexAttrib1svARB)(GLuint index, const GLshort *v);
308 //void (GLAPIENTRY *qglVertexAttrib1dvARB)(GLuint index, const GLdouble *v);
309 //void (GLAPIENTRY *qglVertexAttrib2fvARB)(GLuint index, const GLfloat *v);
310 //void (GLAPIENTRY *qglVertexAttrib2svARB)(GLuint index, const GLshort *v);
311 //void (GLAPIENTRY *qglVertexAttrib2dvARB)(GLuint index, const GLdouble *v);
312 //void (GLAPIENTRY *qglVertexAttrib3fvARB)(GLuint index, const GLfloat *v);
313 //void (GLAPIENTRY *qglVertexAttrib3svARB)(GLuint index, const GLshort *v);
314 //void (GLAPIENTRY *qglVertexAttrib3dvARB)(GLuint index, const GLdouble *v);
315 //void (GLAPIENTRY *qglVertexAttrib4fvARB)(GLuint index, const GLfloat *v);
316 //void (GLAPIENTRY *qglVertexAttrib4svARB)(GLuint index, const GLshort *v);
317 //void (GLAPIENTRY *qglVertexAttrib4dvARB)(GLuint index, const GLdouble *v);
318 //void (GLAPIENTRY *qglVertexAttrib4ivARB)(GLuint index, const GLint *v);
319 //void (GLAPIENTRY *qglVertexAttrib4bvARB)(GLuint index, const GLbyte *v);
320 //void (GLAPIENTRY *qglVertexAttrib4ubvARB)(GLuint index, const GLubyte *v);
321 //void (GLAPIENTRY *qglVertexAttrib4usvARB)(GLuint index, const GLushort *v);
322 //void (GLAPIENTRY *qglVertexAttrib4uivARB)(GLuint index, const GLuint *v);
323 //void (GLAPIENTRY *qglVertexAttrib4NbvARB)(GLuint index, const GLbyte *v);
324 //void (GLAPIENTRY *qglVertexAttrib4NsvARB)(GLuint index, const GLshort *v);
325 //void (GLAPIENTRY *qglVertexAttrib4NivARB)(GLuint index, const GLint *v);
326 //void (GLAPIENTRY *qglVertexAttrib4NubvARB)(GLuint index, const GLubyte *v);
327 //void (GLAPIENTRY *qglVertexAttrib4NusvARB)(GLuint index, const GLushort *v);
328 //void (GLAPIENTRY *qglVertexAttrib4NuivARB)(GLuint index, const GLuint *v);
329 void (GLAPIENTRY *qglVertexAttribPointerARB)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
330 void (GLAPIENTRY *qglEnableVertexAttribArrayARB)(GLuint index);
331 void (GLAPIENTRY *qglDisableVertexAttribArrayARB)(GLuint index);
332 void (GLAPIENTRY *qglBindAttribLocationARB)(GLhandleARB programObj, GLuint index, const GLcharARB *name);
333 void (GLAPIENTRY *qglGetActiveAttribARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
334 GLint (GLAPIENTRY *qglGetAttribLocationARB)(GLhandleARB programObj, const GLcharARB *name);
335 //void (GLAPIENTRY *qglGetVertexAttribdvARB)(GLuint index, GLenum pname, GLdouble *params);
336 //void (GLAPIENTRY *qglGetVertexAttribfvARB)(GLuint index, GLenum pname, GLfloat *params);
337 //void (GLAPIENTRY *qglGetVertexAttribivARB)(GLuint index, GLenum pname, GLint *params);
338 //void (GLAPIENTRY *qglGetVertexAttribPointervARB)(GLuint index, GLenum pname, GLvoid **pointer);
340 int GL_CheckExtension(const char *name, const dllfunction_t *funcs, const char *disableparm, int silent)
343 const dllfunction_t *func;
345 Con_Printf("checking for %s... ", name);
347 for (func = funcs;func && func->name;func++)
348 *func->funcvariable = NULL;
350 if (disableparm && (COM_CheckParm(disableparm) || COM_CheckParm("-safe")))
352 Con_Print("disabled by commandline\n");
356 if (strstr(gl_extensions, name) || strstr(gl_platformextensions, name) || (strncmp(name, "GL_", 3) && strncmp(name, "WGL_", 4) && strncmp(name, "GLX_", 4) && strncmp(name, "AGL_", 4)))
358 for (func = funcs;func && func->name != NULL;func++)
360 // functions are cleared before all the extensions are evaluated
361 if (!(*func->funcvariable = (void *) GL_GetProcAddress(func->name)))
364 Con_Printf("OpenGL extension \"%s\" is missing function \"%s\" - broken driver!\n", name, func->name);
368 // delay the return so it prints all missing functions
371 Con_Print("enabled\n");
376 Con_Print("not detected\n");
381 static dllfunction_t opengl110funcs[] =
383 {"glClearColor", (void **) &qglClearColor},
384 {"glClear", (void **) &qglClear},
385 {"glAlphaFunc", (void **) &qglAlphaFunc},
386 {"glBlendFunc", (void **) &qglBlendFunc},
387 {"glCullFace", (void **) &qglCullFace},
388 {"glDrawBuffer", (void **) &qglDrawBuffer},
389 {"glReadBuffer", (void **) &qglReadBuffer},
390 {"glEnable", (void **) &qglEnable},
391 {"glDisable", (void **) &qglDisable},
392 {"glIsEnabled", (void **) &qglIsEnabled},
393 {"glEnableClientState", (void **) &qglEnableClientState},
394 {"glDisableClientState", (void **) &qglDisableClientState},
395 {"glGetBooleanv", (void **) &qglGetBooleanv},
396 {"glGetDoublev", (void **) &qglGetDoublev},
397 {"glGetFloatv", (void **) &qglGetFloatv},
398 {"glGetIntegerv", (void **) &qglGetIntegerv},
399 {"glGetError", (void **) &qglGetError},
400 {"glGetString", (void **) &qglGetString},
401 {"glFinish", (void **) &qglFinish},
402 {"glFlush", (void **) &qglFlush},
403 {"glClearDepth", (void **) &qglClearDepth},
404 {"glDepthFunc", (void **) &qglDepthFunc},
405 {"glDepthMask", (void **) &qglDepthMask},
406 {"glDepthRange", (void **) &qglDepthRange},
407 {"glDrawElements", (void **) &qglDrawElements},
408 {"glColorMask", (void **) &qglColorMask},
409 {"glVertexPointer", (void **) &qglVertexPointer},
410 {"glNormalPointer", (void **) &qglNormalPointer},
411 {"glColorPointer", (void **) &qglColorPointer},
412 {"glTexCoordPointer", (void **) &qglTexCoordPointer},
413 {"glArrayElement", (void **) &qglArrayElement},
414 {"glColor4f", (void **) &qglColor4f},
415 {"glTexCoord1f", (void **) &qglTexCoord1f},
416 {"glTexCoord2f", (void **) &qglTexCoord2f},
417 {"glTexCoord3f", (void **) &qglTexCoord3f},
418 {"glTexCoord4f", (void **) &qglTexCoord4f},
419 {"glVertex2f", (void **) &qglVertex2f},
420 {"glVertex3f", (void **) &qglVertex3f},
421 {"glBegin", (void **) &qglBegin},
422 {"glEnd", (void **) &qglEnd},
423 //[515]: added on 29.07.2005
424 {"glLineWidth", (void**) &qglLineWidth},
425 {"glPointSize", (void**) &qglPointSize},
427 {"glMatrixMode", (void **) &qglMatrixMode},
428 {"glOrtho", (void **) &qglOrtho},
429 {"glFrustum", (void **) &qglFrustum},
430 {"glViewport", (void **) &qglViewport},
431 {"glPushMatrix", (void **) &qglPushMatrix},
432 {"glPopMatrix", (void **) &qglPopMatrix},
433 {"glLoadIdentity", (void **) &qglLoadIdentity},
434 {"glLoadMatrixd", (void **) &qglLoadMatrixd},
435 {"glLoadMatrixf", (void **) &qglLoadMatrixf},
436 {"glMultMatrixd", (void **) &qglMultMatrixd},
437 {"glMultMatrixf", (void **) &qglMultMatrixf},
438 {"glRotated", (void **) &qglRotated},
439 {"glRotatef", (void **) &qglRotatef},
440 {"glScaled", (void **) &qglScaled},
441 {"glScalef", (void **) &qglScalef},
442 {"glTranslated", (void **) &qglTranslated},
443 {"glTranslatef", (void **) &qglTranslatef},
444 {"glReadPixels", (void **) &qglReadPixels},
445 {"glStencilFunc", (void **) &qglStencilFunc},
446 {"glStencilMask", (void **) &qglStencilMask},
447 {"glStencilOp", (void **) &qglStencilOp},
448 {"glClearStencil", (void **) &qglClearStencil},
449 {"glTexEnvf", (void **) &qglTexEnvf},
450 {"glTexEnvfv", (void **) &qglTexEnvfv},
451 {"glTexEnvi", (void **) &qglTexEnvi},
452 {"glTexParameterf", (void **) &qglTexParameterf},
453 {"glTexParameterfv", (void **) &qglTexParameterfv},
454 {"glTexParameteri", (void **) &qglTexParameteri},
455 {"glPixelStoref", (void **) &qglPixelStoref},
456 {"glPixelStorei", (void **) &qglPixelStorei},
457 {"glGenTextures", (void **) &qglGenTextures},
458 {"glDeleteTextures", (void **) &qglDeleteTextures},
459 {"glBindTexture", (void **) &qglBindTexture},
460 // {"glPrioritizeTextures", (void **) &qglPrioritizeTextures},
461 // {"glAreTexturesResident", (void **) &qglAreTexturesResident},
462 {"glIsTexture", (void **) &qglIsTexture},
463 {"glTexImage1D", (void **) &qglTexImage1D},
464 {"glTexImage2D", (void **) &qglTexImage2D},
465 {"glTexSubImage1D", (void **) &qglTexSubImage1D},
466 {"glTexSubImage2D", (void **) &qglTexSubImage2D},
467 {"glCopyTexImage1D", (void **) &qglCopyTexImage1D},
468 {"glCopyTexImage2D", (void **) &qglCopyTexImage2D},
469 {"glCopyTexSubImage1D", (void **) &qglCopyTexSubImage1D},
470 {"glCopyTexSubImage2D", (void **) &qglCopyTexSubImage2D},
471 {"glScissor", (void **) &qglScissor},
472 {"glPolygonOffset", (void **) &qglPolygonOffset},
473 {"glPolygonMode", (void **) &qglPolygonMode},
474 {"glPolygonStipple", (void **) &qglPolygonStipple},
478 static dllfunction_t drawrangeelementsfuncs[] =
480 {"glDrawRangeElements", (void **) &qglDrawRangeElements},
484 static dllfunction_t drawrangeelementsextfuncs[] =
486 {"glDrawRangeElementsEXT", (void **) &qglDrawRangeElementsEXT},
490 static dllfunction_t multitexturefuncs[] =
492 {"glMultiTexCoord1fARB", (void **) &qglMultiTexCoord1f},
493 {"glMultiTexCoord2fARB", (void **) &qglMultiTexCoord2f},
494 {"glMultiTexCoord3fARB", (void **) &qglMultiTexCoord3f},
495 {"glMultiTexCoord4fARB", (void **) &qglMultiTexCoord4f},
496 {"glActiveTextureARB", (void **) &qglActiveTexture},
497 {"glClientActiveTextureARB", (void **) &qglClientActiveTexture},
501 static dllfunction_t compiledvertexarrayfuncs[] =
503 {"glLockArraysEXT", (void **) &qglLockArraysEXT},
504 {"glUnlockArraysEXT", (void **) &qglUnlockArraysEXT},
508 static dllfunction_t texture3dextfuncs[] =
510 {"glTexImage3DEXT", (void **) &qglTexImage3D},
511 {"glTexSubImage3DEXT", (void **) &qglTexSubImage3D},
512 {"glCopyTexSubImage3DEXT", (void **) &qglCopyTexSubImage3D},
516 static dllfunction_t stenciltwosidefuncs[] =
518 {"glActiveStencilFaceEXT", (void **) &qglActiveStencilFaceEXT},
522 static dllfunction_t shaderobjectsfuncs[] =
524 {"glDeleteObjectARB", (void **) &qglDeleteObjectARB},
525 {"glGetHandleARB", (void **) &qglGetHandleARB},
526 {"glDetachObjectARB", (void **) &qglDetachObjectARB},
527 {"glCreateShaderObjectARB", (void **) &qglCreateShaderObjectARB},
528 {"glShaderSourceARB", (void **) &qglShaderSourceARB},
529 {"glCompileShaderARB", (void **) &qglCompileShaderARB},
530 {"glCreateProgramObjectARB", (void **) &qglCreateProgramObjectARB},
531 {"glAttachObjectARB", (void **) &qglAttachObjectARB},
532 {"glLinkProgramARB", (void **) &qglLinkProgramARB},
533 {"glUseProgramObjectARB", (void **) &qglUseProgramObjectARB},
534 {"glValidateProgramARB", (void **) &qglValidateProgramARB},
535 {"glUniform1fARB", (void **) &qglUniform1fARB},
536 {"glUniform2fARB", (void **) &qglUniform2fARB},
537 {"glUniform3fARB", (void **) &qglUniform3fARB},
538 {"glUniform4fARB", (void **) &qglUniform4fARB},
539 {"glUniform1iARB", (void **) &qglUniform1iARB},
540 {"glUniform2iARB", (void **) &qglUniform2iARB},
541 {"glUniform3iARB", (void **) &qglUniform3iARB},
542 {"glUniform4iARB", (void **) &qglUniform4iARB},
543 {"glUniform1fvARB", (void **) &qglUniform1fvARB},
544 {"glUniform2fvARB", (void **) &qglUniform2fvARB},
545 {"glUniform3fvARB", (void **) &qglUniform3fvARB},
546 {"glUniform4fvARB", (void **) &qglUniform4fvARB},
547 {"glUniform1ivARB", (void **) &qglUniform1ivARB},
548 {"glUniform2ivARB", (void **) &qglUniform2ivARB},
549 {"glUniform3ivARB", (void **) &qglUniform3ivARB},
550 {"glUniform4ivARB", (void **) &qglUniform4ivARB},
551 {"glUniformMatrix2fvARB", (void **) &qglUniformMatrix2fvARB},
552 {"glUniformMatrix3fvARB", (void **) &qglUniformMatrix3fvARB},
553 {"glUniformMatrix4fvARB", (void **) &qglUniformMatrix4fvARB},
554 {"glGetObjectParameterfvARB", (void **) &qglGetObjectParameterfvARB},
555 {"glGetObjectParameterivARB", (void **) &qglGetObjectParameterivARB},
556 {"glGetInfoLogARB", (void **) &qglGetInfoLogARB},
557 {"glGetAttachedObjectsARB", (void **) &qglGetAttachedObjectsARB},
558 {"glGetUniformLocationARB", (void **) &qglGetUniformLocationARB},
559 {"glGetActiveUniformARB", (void **) &qglGetActiveUniformARB},
560 {"glGetUniformfvARB", (void **) &qglGetUniformfvARB},
561 {"glGetUniformivARB", (void **) &qglGetUniformivARB},
562 {"glGetShaderSourceARB", (void **) &qglGetShaderSourceARB},
566 static dllfunction_t vertexshaderfuncs[] =
568 // {"glVertexAttrib1fARB", (void **) &qglVertexAttrib1fARB},
569 // {"glVertexAttrib1sARB", (void **) &qglVertexAttrib1sARB},
570 // {"glVertexAttrib1dARB", (void **) &qglVertexAttrib1dARB},
571 // {"glVertexAttrib2fARB", (void **) &qglVertexAttrib2fARB},
572 // {"glVertexAttrib2sARB", (void **) &qglVertexAttrib2sARB},
573 // {"glVertexAttrib2dARB", (void **) &qglVertexAttrib2dARB},
574 // {"glVertexAttrib3fARB", (void **) &qglVertexAttrib3fARB},
575 // {"glVertexAttrib3sARB", (void **) &qglVertexAttrib3sARB},
576 // {"glVertexAttrib3dARB", (void **) &qglVertexAttrib3dARB},
577 // {"glVertexAttrib4fARB", (void **) &qglVertexAttrib4fARB},
578 // {"glVertexAttrib4sARB", (void **) &qglVertexAttrib4sARB},
579 // {"glVertexAttrib4dARB", (void **) &qglVertexAttrib4dARB},
580 // {"glVertexAttrib4NubARB", (void **) &qglVertexAttrib4NubARB},
581 // {"glVertexAttrib1fvARB", (void **) &qglVertexAttrib1fvARB},
582 // {"glVertexAttrib1svARB", (void **) &qglVertexAttrib1svARB},
583 // {"glVertexAttrib1dvARB", (void **) &qglVertexAttrib1dvARB},
584 // {"glVertexAttrib2fvARB", (void **) &qglVertexAttrib1fvARB},
585 // {"glVertexAttrib2svARB", (void **) &qglVertexAttrib1svARB},
586 // {"glVertexAttrib2dvARB", (void **) &qglVertexAttrib1dvARB},
587 // {"glVertexAttrib3fvARB", (void **) &qglVertexAttrib1fvARB},
588 // {"glVertexAttrib3svARB", (void **) &qglVertexAttrib1svARB},
589 // {"glVertexAttrib3dvARB", (void **) &qglVertexAttrib1dvARB},
590 // {"glVertexAttrib4fvARB", (void **) &qglVertexAttrib1fvARB},
591 // {"glVertexAttrib4svARB", (void **) &qglVertexAttrib1svARB},
592 // {"glVertexAttrib4dvARB", (void **) &qglVertexAttrib1dvARB},
593 // {"glVertexAttrib4ivARB", (void **) &qglVertexAttrib1ivARB},
594 // {"glVertexAttrib4bvARB", (void **) &qglVertexAttrib1bvARB},
595 // {"glVertexAttrib4ubvARB", (void **) &qglVertexAttrib1ubvARB},
596 // {"glVertexAttrib4usvARB", (void **) &qglVertexAttrib1usvARB},
597 // {"glVertexAttrib4uivARB", (void **) &qglVertexAttrib1uivARB},
598 // {"glVertexAttrib4NbvARB", (void **) &qglVertexAttrib1NbvARB},
599 // {"glVertexAttrib4NsvARB", (void **) &qglVertexAttrib1NsvARB},
600 // {"glVertexAttrib4NivARB", (void **) &qglVertexAttrib1NivARB},
601 // {"glVertexAttrib4NubvARB", (void **) &qglVertexAttrib1NubvARB},
602 // {"glVertexAttrib4NusvARB", (void **) &qglVertexAttrib1NusvARB},
603 // {"glVertexAttrib4NuivARB", (void **) &qglVertexAttrib1NuivARB},
604 {"glVertexAttribPointerARB", (void **) &qglVertexAttribPointerARB},
605 {"glEnableVertexAttribArrayARB", (void **) &qglEnableVertexAttribArrayARB},
606 {"glDisableVertexAttribArrayARB", (void **) &qglDisableVertexAttribArrayARB},
607 {"glBindAttribLocationARB", (void **) &qglBindAttribLocationARB},
608 {"glGetActiveAttribARB", (void **) &qglGetActiveAttribARB},
609 {"glGetAttribLocationARB", (void **) &qglGetAttribLocationARB},
610 // {"glGetVertexAttribdvARB", (void **) &qglGetVertexAttribdvARB},
611 // {"glGetVertexAttribfvARB", (void **) &qglGetVertexAttribfvARB},
612 // {"glGetVertexAttribivARB", (void **) &qglGetVertexAttribivARB},
613 // {"glGetVertexAttribPointervARB", (void **) &qglGetVertexAttribPointervARB},
618 void VID_CheckExtensions(void)
620 gl_stencil = vid_bitsperpixel.integer == 32;
622 // reset all the gl extension variables here
623 // this should match the declarations
624 gl_max_texture_size = 0;
625 gl_max_3d_texture_size = 0;
626 gl_max_cube_map_texture_size = 0;
628 gl_combine_extension = false;
629 gl_supportslockarrays = false;
630 gl_texture3d = false;
631 gl_texturecubemap = false;
632 gl_support_arb_texture_non_power_of_two = false;
634 gl_support_clamptoedge = false;
635 gl_support_anisotropy = false;
636 gl_max_anisotropy = 1;
637 gl_support_stenciltwoside = false;
638 gl_support_shader_objects = false;
639 gl_support_shading_language_100 = false;
640 gl_support_vertex_shader = false;
641 gl_support_fragment_shader = false;
643 if (!GL_CheckExtension("OpenGL 1.1.0", opengl110funcs, NULL, false))
644 Sys_Error("OpenGL 1.1.0 functions not found");
646 Con_Printf("GL_VENDOR: %s\n", gl_vendor);
647 Con_Printf("GL_RENDERER: %s\n", gl_renderer);
648 Con_Printf("GL_VERSION: %s\n", gl_version);
649 Con_Printf("GL_EXTENSIONS: %s\n", gl_extensions);
650 Con_Printf("%s_EXTENSIONS: %s\n", gl_platform, gl_platformextensions);
653 qglGetIntegerv(GL_MAX_TEXTURE_SIZE, &gl_max_texture_size);
655 Con_Print("Checking OpenGL extensions...\n");
657 // COMMANDLINEOPTION: GL: -nodrawrangeelements disables GL_EXT_draw_range_elements (renders faster)
658 if (!GL_CheckExtension("glDrawRangeElements", drawrangeelementsfuncs, "-nodrawrangeelements", true))
659 GL_CheckExtension("GL_EXT_draw_range_elements", drawrangeelementsextfuncs, "-nodrawrangeelements", false);
661 // COMMANDLINEOPTION: GL: -nomtex disables GL_ARB_multitexture (required for faster map rendering)
662 if (GL_CheckExtension("GL_ARB_multitexture", multitexturefuncs, "-nomtex", false))
664 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &gl_textureunits);
665 // COMMANDLINEOPTION: GL: -nocombine disables GL_ARB_texture_env_combine or GL_EXT_texture_env_combine (required for bumpmapping and faster map rendering)
666 gl_combine_extension = GL_CheckExtension("GL_ARB_texture_env_combine", NULL, "-nocombine", false) || GL_CheckExtension("GL_EXT_texture_env_combine", NULL, "-nocombine", false);
667 // COMMANDLINEOPTION: GL: -nodot3 disables GL_ARB_texture_env_dot3 (required for bumpmapping)
668 if (gl_combine_extension)
669 gl_dot3arb = GL_CheckExtension("GL_ARB_texture_env_dot3", NULL, "-nodot3", false);
672 // COMMANDLINEOPTION: GL: -notexture3d disables GL_EXT_texture3D (required for spherical lights, otherwise they render as a column)
673 if ((gl_texture3d = GL_CheckExtension("GL_EXT_texture3D", texture3dextfuncs, "-notexture3d", false)))
675 qglGetIntegerv(GL_MAX_3D_TEXTURE_SIZE, &gl_max_3d_texture_size);
676 if (gl_max_3d_texture_size < 32)
678 gl_texture3d = false;
679 Con_Printf("GL_EXT_texture3D reported bogus GL_MAX_3D_TEXTURE_SIZE, disabled\n");
682 // COMMANDLINEOPTION: GL: -nocubemap disables GL_ARB_texture_cube_map (required for bumpmapping)
683 if ((gl_texturecubemap = GL_CheckExtension("GL_ARB_texture_cube_map", NULL, "-nocubemap", false)))
684 qglGetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, &gl_max_cube_map_texture_size);
685 gl_support_arb_texture_non_power_of_two = GL_CheckExtension("GL_ARB_texture_non_power_of_two", NULL, "-notexturenonpoweroftwo", false);
686 // COMMANDLINEOPTION: GL: -nocva disables GL_EXT_compiled_vertex_array (renders faster)
687 gl_supportslockarrays = GL_CheckExtension("GL_EXT_compiled_vertex_array", compiledvertexarrayfuncs, "-nocva", false);
688 // COMMANDLINEOPTION: GL: -noedgeclamp disables GL_EXT_texture_edge_clamp or GL_SGIS_texture_edge_clamp (recommended, some cards do not support the other texture clamp method)
689 gl_support_clamptoedge = GL_CheckExtension("GL_EXT_texture_edge_clamp", NULL, "-noedgeclamp", false) || GL_CheckExtension("GL_SGIS_texture_edge_clamp", NULL, "-noedgeclamp", false);
691 // COMMANDLINEOPTION: GL: -noanisotropy disables GL_EXT_texture_filter_anisotropic (allows higher quality texturing)
692 if ((gl_support_anisotropy = GL_CheckExtension("GL_EXT_texture_filter_anisotropic", NULL, "-noanisotropy", false)))
693 qglGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &gl_max_anisotropy);
695 // COMMANDLINEOPTION: GL: -nostenciltwoside disables GL_EXT_stencil_two_side (accelerates shadow rendering)
696 gl_support_stenciltwoside = GL_CheckExtension("GL_EXT_stencil_two_side", stenciltwosidefuncs, "-nostenciltwoside", false);
698 // we don't care if it's an extension or not, they are identical functions, so keep it simple in the rendering code
699 if (qglDrawRangeElements == NULL)
700 qglDrawRangeElements = qglDrawRangeElementsEXT;
702 // COMMANDLINEOPTION: GL: -noshaderobjects disables GL_ARB_shader_objects (required for vertex shader and fragment shader)
703 // COMMANDLINEOPTION: GL: -noshadinglanguage100 disables GL_ARB_shading_language_100 (required for vertex shader and fragment shader)
704 // COMMANDLINEOPTION: GL: -novertexshader disables GL_ARB_vertex_shader (allows vertex shader effects)
705 // COMMANDLINEOPTION: GL: -nofragmentshader disables GL_ARB_fragment_shader (allows pixel shader effects, can improve per pixel lighting performance and capabilities)
706 if ((gl_support_shader_objects = GL_CheckExtension("GL_ARB_shader_objects", shaderobjectsfuncs, "-noshaderobjects", false)))
707 if ((gl_support_shading_language_100 = GL_CheckExtension("GL_ARB_shading_language_100", NULL, "-noshadinglanguage100", false)))
708 if ((gl_support_vertex_shader = GL_CheckExtension("GL_ARB_vertex_shader", vertexshaderfuncs, "-novertexshader", false)))
709 gl_support_fragment_shader = GL_CheckExtension("GL_ARB_fragment_shader", NULL, "-nofragmentshader", false);
713 void Force_CenterView_f (void)
715 cl.viewangles[PITCH] = 0;
718 static int gamma_forcenextframe = false;
719 static float cachegamma, cachebrightness, cachecontrast, cacheblack[3], cachegrey[3], cachewhite[3];
720 static int cachecolorenable, cachehwgamma;
721 #define BOUNDCVAR(cvar, m1, m2) c = &(cvar);f = bound(m1, c->value, m2);if (c->value != f) Cvar_SetValueQuick(c, f);
722 void VID_UpdateGamma(qboolean force, int rampsize)
727 // LordHavoc: don't mess with gamma tables if running dedicated
728 if (cls.state == ca_dedicated)
732 && !gamma_forcenextframe
734 && cachehwgamma == (vid_activewindow ? v_hwgamma.integer : 0)
735 && v_gamma.value == cachegamma
736 && v_contrast.value == cachecontrast
737 && v_brightness.value == cachebrightness
738 && cachecolorenable == v_color_enable.integer
739 && cacheblack[0] == v_color_black_r.value
740 && cacheblack[1] == v_color_black_g.value
741 && cacheblack[2] == v_color_black_b.value
742 && cachegrey[0] == v_color_grey_r.value
743 && cachegrey[1] == v_color_grey_g.value
744 && cachegrey[2] == v_color_grey_b.value
745 && cachewhite[0] == v_color_white_r.value
746 && cachewhite[1] == v_color_white_g.value
747 && cachewhite[2] == v_color_white_b.value)
750 BOUNDCVAR(v_gamma, 0.1, 5);cachegamma = v_gamma.value;
751 BOUNDCVAR(v_contrast, 1, 5);cachecontrast = v_contrast.value;
752 BOUNDCVAR(v_brightness, 0, 0.8);cachebrightness = v_brightness.value;
753 BOUNDCVAR(v_color_black_r, 0, 0.8);cacheblack[0] = v_color_black_r.value;
754 BOUNDCVAR(v_color_black_g, 0, 0.8);cacheblack[1] = v_color_black_g.value;
755 BOUNDCVAR(v_color_black_b, 0, 0.8);cacheblack[2] = v_color_black_b.value;
756 BOUNDCVAR(v_color_grey_r, 0, 0.95);cachegrey[0] = v_color_grey_r.value;
757 BOUNDCVAR(v_color_grey_g, 0, 0.95);cachegrey[1] = v_color_grey_g.value;
758 BOUNDCVAR(v_color_grey_b, 0, 0.95);cachegrey[2] = v_color_grey_b.value;
759 BOUNDCVAR(v_color_white_r, 1, 5);cachewhite[0] = v_color_white_r.value;
760 BOUNDCVAR(v_color_white_g, 1, 5);cachewhite[1] = v_color_white_g.value;
761 BOUNDCVAR(v_color_white_b, 1, 5);cachewhite[2] = v_color_white_b.value;
762 cachecolorenable = v_color_enable.integer;
763 cachehwgamma = vid_activewindow ? v_hwgamma.integer : 0;
765 gamma_forcenextframe = false;
769 if (!vid_usinghwgamma)
771 vid_usinghwgamma = true;
772 if (vid_gammarampsize != rampsize || !vid_gammaramps)
774 vid_gammarampsize = rampsize;
776 Z_Free(vid_gammaramps);
777 vid_gammaramps = (unsigned short *)Z_Malloc(6 * vid_gammarampsize * sizeof(unsigned short));
778 vid_systemgammaramps = vid_gammaramps + 3 * vid_gammarampsize;
780 VID_GetGamma(vid_systemgammaramps, vid_gammarampsize);
783 if (cachecolorenable)
785 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[0]), cachewhite[0], cacheblack[0], vid_gammaramps, rampsize);
786 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[1]), cachewhite[1], cacheblack[1], vid_gammaramps + vid_gammarampsize, rampsize);
787 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[2]), cachewhite[2], cacheblack[2], vid_gammaramps + vid_gammarampsize*2, rampsize);
791 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps, rampsize);
792 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps + vid_gammarampsize, rampsize);
793 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps + vid_gammarampsize*2, rampsize);
796 // LordHavoc: this code came from Ben Winslow and Zinx Verituse, I have
797 // immensely butchered it to work with variable framerates and fit in with
798 // the rest of darkplaces.
799 if (v_psycho.integer)
803 static float n[3], nd[3], nt[3];
804 static int init = true;
805 unsigned short *ramp;
806 gamma_forcenextframe = true;
810 for (x = 0;x < 3;x++)
812 n[x] = lhrandom(0, 1);
813 nd[x] = (rand()&1)?-0.25:0.25;
814 nt[x] = lhrandom(1, 8.2);
818 for (x = 0;x < 3;x++)
820 nt[x] -= cl.realframetime;
824 nt[x] += lhrandom(1, 8.2);
826 n[x] += nd[x] * cl.realframetime;
830 for (x = 0, ramp = vid_gammaramps;x < 3;x++)
831 for (y = 0, t = n[x] - 0.75f;y < vid_gammarampsize;y++, t += 0.75f * (2.0f / vid_gammarampsize))
832 *ramp++ = (unsigned short)(cos(t*(M_PI*2.0)) * 32767.0f + 32767.0f);
835 // set vid_hardwaregammasupported to true if VID_SetGamma succeeds, OR if vid_hwgamma is >= 2 (forced gamma - ignores driver return value)
836 Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_gammaramps, vid_gammarampsize) || cachehwgamma >= 2);
837 // if custom gamma ramps failed (Windows stupidity), restore to system gamma
838 if(!vid_hardwaregammasupported.integer)
840 if (vid_usinghwgamma)
842 vid_usinghwgamma = false;
843 VID_SetGamma(vid_systemgammaramps, vid_gammarampsize);
849 if (vid_usinghwgamma)
851 vid_usinghwgamma = false;
852 VID_SetGamma(vid_systemgammaramps, vid_gammarampsize);
857 void VID_RestoreSystemGamma(void)
859 if (vid_usinghwgamma)
861 vid_usinghwgamma = false;
862 Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_systemgammaramps, vid_gammarampsize));
863 // force gamma situation to be reexamined next frame
864 gamma_forcenextframe = true;
868 void VID_Shared_Init(void)
870 Cvar_RegisterVariable(&vid_hardwaregammasupported);
871 Cvar_RegisterVariable(&v_gamma);
872 Cvar_RegisterVariable(&v_brightness);
873 Cvar_RegisterVariable(&v_contrast);
875 Cvar_RegisterVariable(&v_color_enable);
876 Cvar_RegisterVariable(&v_color_black_r);
877 Cvar_RegisterVariable(&v_color_black_g);
878 Cvar_RegisterVariable(&v_color_black_b);
879 Cvar_RegisterVariable(&v_color_grey_r);
880 Cvar_RegisterVariable(&v_color_grey_g);
881 Cvar_RegisterVariable(&v_color_grey_b);
882 Cvar_RegisterVariable(&v_color_white_r);
883 Cvar_RegisterVariable(&v_color_white_g);
884 Cvar_RegisterVariable(&v_color_white_b);
886 Cvar_RegisterVariable(&v_hwgamma);
888 Cvar_RegisterVariable(&v_psycho);
890 Cvar_RegisterVariable(&vid_fullscreen);
891 Cvar_RegisterVariable(&vid_width);
892 Cvar_RegisterVariable(&vid_height);
893 Cvar_RegisterVariable(&vid_bitsperpixel);
894 Cvar_RegisterVariable(&vid_refreshrate);
895 Cvar_RegisterVariable(&vid_stereobuffer);
896 Cvar_RegisterVariable(&vid_vsync);
897 Cvar_RegisterVariable(&vid_mouse);
898 Cvar_RegisterVariable(&vid_minwidth);
899 Cvar_RegisterVariable(&vid_minheight);
900 Cvar_RegisterVariable(&gl_combine);
901 Cvar_RegisterVariable(&gl_finish);
902 Cmd_AddCommand("force_centerview", Force_CenterView_f, "recenters view (stops looking up/down)");
903 Cmd_AddCommand("vid_restart", VID_Restart_f, "restarts video system (closes and reopens the window, restarts renderer)");
904 if (gamemode == GAME_GOODVSBAD2)
905 Cvar_Set("gl_combine", "0");
908 int VID_Mode(int fullscreen, int width, int height, int bpp, int refreshrate, int stereobuffer)
910 Con_Printf("Video: %s %dx%dx%dx%dhz%s\n", fullscreen ? "fullscreen" : "window", width, height, bpp, refreshrate, stereobuffer ? " stereo" : "");
911 if (VID_InitMode(fullscreen, width, height, bpp, refreshrate, stereobuffer))
913 vid.fullscreen = fullscreen;
916 vid.bitsperpixel = bpp;
917 vid.refreshrate = refreshrate;
918 vid.stereobuffer = stereobuffer;
919 Cvar_SetValueQuick(&vid_fullscreen, fullscreen);
920 Cvar_SetValueQuick(&vid_width, width);
921 Cvar_SetValueQuick(&vid_height, height);
922 Cvar_SetValueQuick(&vid_bitsperpixel, bpp);
923 Cvar_SetValueQuick(&vid_refreshrate, refreshrate);
924 Cvar_SetValueQuick(&vid_stereobuffer, stereobuffer);
931 static void VID_OpenSystems(void)
937 static void VID_CloseSystems(void)
940 R_Modules_Shutdown();
943 qboolean vid_commandlinecheck = true;
945 void VID_Restart_f(void)
947 // don't crash if video hasn't started yet
948 if (vid_commandlinecheck)
951 Con_Printf("VID_Restart: changing from %s %dx%dx%dbpp, to %s %dx%dx%dbpp.\n",
952 vid.fullscreen ? "fullscreen" : "window", vid.width, vid.height, vid.bitsperpixel,
953 vid_fullscreen.integer ? "fullscreen" : "window", vid_width.integer, vid_height.integer, vid_bitsperpixel.integer);
956 if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.integer, vid_stereobuffer.integer))
958 Con_Print("Video mode change failed\n");
959 if (!VID_Mode(vid.fullscreen, vid.width, vid.height, vid.bitsperpixel, vid.refreshrate, vid.stereobuffer))
960 Sys_Error("Unable to restore to last working video mode");
965 // this is only called once by Host_StartVideo
968 int i, width, height, success;
969 if (vid_commandlinecheck)
971 // interpret command-line parameters
972 vid_commandlinecheck = false;
973 // COMMANDLINEOPTION: Video: -window performs +vid_fullscreen 0
974 if (COM_CheckParm("-window") || COM_CheckParm("-safe"))
975 Cvar_SetValueQuick(&vid_fullscreen, false);
976 // COMMANDLINEOPTION: Video: -fullscreen performs +vid_fullscreen 1
977 if (COM_CheckParm("-fullscreen"))
978 Cvar_SetValueQuick(&vid_fullscreen, true);
981 // COMMANDLINEOPTION: Video: -width <pixels> performs +vid_width <pixels> and also +vid_height <pixels*3/4> if only -width is specified (example: -width 1024 sets 1024x768 mode)
982 if ((i = COM_CheckParm("-width")) != 0)
983 width = atoi(com_argv[i+1]);
984 // COMMANDLINEOPTION: Video: -height <pixels> performs +vid_height <pixels> and also +vid_width <pixels*4/3> if only -height is specified (example: -height 768 sets 1024x768 mode)
985 if ((i = COM_CheckParm("-height")) != 0)
986 height = atoi(com_argv[i+1]);
988 width = height * 4 / 3;
990 height = width * 3 / 4;
992 Cvar_SetValueQuick(&vid_width, width);
994 Cvar_SetValueQuick(&vid_height, height);
995 // COMMANDLINEOPTION: Video: -bpp <bits> performs +vid_bitsperpixel <bits> (example -bpp 32 or -bpp 16)
996 if ((i = COM_CheckParm("-bpp")) != 0)
997 Cvar_SetQuick(&vid_bitsperpixel, com_argv[i+1]);
1000 Con_Print("Starting video system\n");
1001 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.integer, vid_stereobuffer.integer);
1004 Con_Print("Desired video mode fail, trying fallbacks...\n");
1005 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, 60, vid_stereobuffer.integer);
1006 if (!success && vid_stereobuffer.integer)
1007 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.integer, false);
1008 if (!success && vid_bitsperpixel.integer > 16)
1009 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, 16, 60, false);
1010 if (!success && (vid_width.integer > 640 || vid_height.integer > 480))
1011 success = VID_Mode(vid_fullscreen.integer, 640, 480, 16, 60, false);
1012 if (!success && vid_fullscreen.integer)
1013 success = VID_Mode(false, 640, 480, 16, 60, false);
1015 Sys_Error("Video modes failed");