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 // OpenGL2.0 core glStencilOpSeparate, or GL_ATI_separate_stencil
46 int gl_support_separatestencil = false;
47 // GL_EXT_stencil_two_side
48 int gl_support_stenciltwoside = false;
49 // GL_EXT_blend_minmax
50 int gl_support_ext_blend_minmax = false;
51 // GL_EXT_blend_subtract
52 int gl_support_ext_blend_subtract = false;
53 // GL_ARB_shader_objects
54 int gl_support_shader_objects = false;
55 // GL_ARB_shading_language_100
56 int gl_support_shading_language_100 = false;
57 // GL_ARB_vertex_shader
58 int gl_support_vertex_shader = false;
59 // GL_ARB_fragment_shader
60 int gl_support_fragment_shader = false;
62 // LordHavoc: if window is hidden, don't update screen
63 qboolean vid_hidden = true;
64 // LordHavoc: if window is not the active window, don't hog as much CPU time,
65 // let go of the mouse, turn off sound, and restore system gamma ramps...
66 qboolean vid_activewindow = true;
68 // we don't know until we try it!
69 cvar_t vid_hardwaregammasupported = {CVAR_READONLY,"vid_hardwaregammasupported","1", "indicates whether hardware gamma is supported (updated by attempts to set hardware gamma ramps)"};
70 // whether hardware gamma ramps are currently in effect
71 qboolean vid_usinghwgamma = false;
73 int vid_gammarampsize = 0;
74 unsigned short *vid_gammaramps = NULL;
75 unsigned short *vid_systemgammaramps = NULL;
77 cvar_t vid_fullscreen = {CVAR_SAVE, "vid_fullscreen", "1", "use fullscreen (1) or windowed (0)"};
78 cvar_t vid_width = {CVAR_SAVE, "vid_width", "640", "resolution"};
79 cvar_t vid_height = {CVAR_SAVE, "vid_height", "480", "resolution"};
80 cvar_t vid_bitsperpixel = {CVAR_SAVE, "vid_bitsperpixel", "32", "how many bits per pixel to render at (32 or 16, 32 is recommended)"};
81 cvar_t vid_refreshrate = {CVAR_SAVE, "vid_refreshrate", "60", "refresh rate to use, in hz (higher values flicker less, if supported by your monitor)"};
82 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"};
84 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"};
85 cvar_t vid_mouse = {CVAR_SAVE, "vid_mouse", "1", "whether to use the mouse in windowed mode (fullscreen always does)"};
86 cvar_t vid_grabkeyboard = {CVAR_SAVE, "vid_grabkeyboard", "1", "whether to grab the keyboard when mouse is active (prevents use of volume control keys, music player keys, etc on some keyboards)"};
87 cvar_t vid_minwidth = {0, "vid_minwidth", "0", "minimum vid_width that is acceptable (to be set in default.cfg in mods)"};
88 cvar_t vid_minheight = {0, "vid_minheight", "0", "minimum vid_height that is acceptable (to be set in default.cfg in mods)"};
89 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)"};
90 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)"};
92 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"};
93 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)"};
94 cvar_t v_brightness = {CVAR_SAVE, "v_brightness", "0", "brightness of black, useful for monitors that are too dark"};
95 cvar_t v_color_enable = {CVAR_SAVE, "v_color_enable", "0", "enables black-grey-white color correction curve controls"};
96 cvar_t v_color_black_r = {CVAR_SAVE, "v_color_black_r", "0", "desired color of black"};
97 cvar_t v_color_black_g = {CVAR_SAVE, "v_color_black_g", "0", "desired color of black"};
98 cvar_t v_color_black_b = {CVAR_SAVE, "v_color_black_b", "0", "desired color of black"};
99 cvar_t v_color_grey_r = {CVAR_SAVE, "v_color_grey_r", "0.5", "desired color of grey"};
100 cvar_t v_color_grey_g = {CVAR_SAVE, "v_color_grey_g", "0.5", "desired color of grey"};
101 cvar_t v_color_grey_b = {CVAR_SAVE, "v_color_grey_b", "0.5", "desired color of grey"};
102 cvar_t v_color_white_r = {CVAR_SAVE, "v_color_white_r", "1", "desired color of white"};
103 cvar_t v_color_white_g = {CVAR_SAVE, "v_color_white_g", "1", "desired color of white"};
104 cvar_t v_color_white_b = {CVAR_SAVE, "v_color_white_b", "1", "desired color of white"};
105 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"};
106 cvar_t v_psycho = {0, "v_psycho", "0", "easter egg (does not work on Windows2000 or above)"};
108 // brand of graphics chip
109 const char *gl_vendor;
110 // graphics chip model and other information
111 const char *gl_renderer;
112 // begins with 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0
113 const char *gl_version;
114 // extensions list, space separated
115 const char *gl_extensions;
117 const char *gl_platform;
118 // another extensions list, containing platform-specific extensions that are
119 // not in the main list
120 const char *gl_platformextensions;
121 // name of driver library (opengl32.dll, libGL.so.1, or whatever)
124 // GL_ARB_multitexture
125 void (GLAPIENTRY *qglMultiTexCoord1f) (GLenum, GLfloat);
126 void (GLAPIENTRY *qglMultiTexCoord2f) (GLenum, GLfloat, GLfloat);
127 void (GLAPIENTRY *qglMultiTexCoord3f) (GLenum, GLfloat, GLfloat, GLfloat);
128 void (GLAPIENTRY *qglMultiTexCoord4f) (GLenum, GLfloat, GLfloat, GLfloat, GLfloat);
129 void (GLAPIENTRY *qglActiveTexture) (GLenum);
130 void (GLAPIENTRY *qglClientActiveTexture) (GLenum);
132 // GL_EXT_compiled_vertex_array
133 void (GLAPIENTRY *qglLockArraysEXT) (GLint first, GLint count);
134 void (GLAPIENTRY *qglUnlockArraysEXT) (void);
136 // general GL functions
138 void (GLAPIENTRY *qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
140 void (GLAPIENTRY *qglClear)(GLbitfield mask);
142 void (GLAPIENTRY *qglAlphaFunc)(GLenum func, GLclampf ref);
143 void (GLAPIENTRY *qglBlendFunc)(GLenum sfactor, GLenum dfactor);
144 void (GLAPIENTRY *qglCullFace)(GLenum mode);
146 void (GLAPIENTRY *qglDrawBuffer)(GLenum mode);
147 void (GLAPIENTRY *qglReadBuffer)(GLenum mode);
148 void (GLAPIENTRY *qglEnable)(GLenum cap);
149 void (GLAPIENTRY *qglDisable)(GLenum cap);
150 GLboolean (GLAPIENTRY *qglIsEnabled)(GLenum cap);
152 void (GLAPIENTRY *qglEnableClientState)(GLenum cap);
153 void (GLAPIENTRY *qglDisableClientState)(GLenum cap);
155 void (GLAPIENTRY *qglGetBooleanv)(GLenum pname, GLboolean *params);
156 void (GLAPIENTRY *qglGetDoublev)(GLenum pname, GLdouble *params);
157 void (GLAPIENTRY *qglGetFloatv)(GLenum pname, GLfloat *params);
158 void (GLAPIENTRY *qglGetIntegerv)(GLenum pname, GLint *params);
160 GLenum (GLAPIENTRY *qglGetError)(void);
161 const GLubyte* (GLAPIENTRY *qglGetString)(GLenum name);
162 void (GLAPIENTRY *qglFinish)(void);
163 void (GLAPIENTRY *qglFlush)(void);
165 void (GLAPIENTRY *qglClearDepth)(GLclampd depth);
166 void (GLAPIENTRY *qglDepthFunc)(GLenum func);
167 void (GLAPIENTRY *qglDepthMask)(GLboolean flag);
168 void (GLAPIENTRY *qglDepthRange)(GLclampd near_val, GLclampd far_val);
169 void (GLAPIENTRY *qglColorMask)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
171 void (GLAPIENTRY *qglDrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
172 void (GLAPIENTRY *qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
173 void (GLAPIENTRY *qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
174 void (GLAPIENTRY *qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *ptr);
175 void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
176 void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
177 void (GLAPIENTRY *qglArrayElement)(GLint i);
179 void (GLAPIENTRY *qglColor4f)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
180 void (GLAPIENTRY *qglTexCoord1f)(GLfloat s);
181 void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
182 void (GLAPIENTRY *qglTexCoord3f)(GLfloat s, GLfloat t, GLfloat r);
183 void (GLAPIENTRY *qglTexCoord4f)(GLfloat s, GLfloat t, GLfloat r, GLfloat q);
184 void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
185 void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
186 void (GLAPIENTRY *qglBegin)(GLenum mode);
187 void (GLAPIENTRY *qglEnd)(void);
189 void (GLAPIENTRY *qglMatrixMode)(GLenum mode);
190 void (GLAPIENTRY *qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
191 void (GLAPIENTRY *qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
192 void (GLAPIENTRY *qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
193 void (GLAPIENTRY *qglPushMatrix)(void);
194 void (GLAPIENTRY *qglPopMatrix)(void);
195 void (GLAPIENTRY *qglLoadIdentity)(void);
196 void (GLAPIENTRY *qglLoadMatrixd)(const GLdouble *m);
197 void (GLAPIENTRY *qglLoadMatrixf)(const GLfloat *m);
198 void (GLAPIENTRY *qglMultMatrixd)(const GLdouble *m);
199 void (GLAPIENTRY *qglMultMatrixf)(const GLfloat *m);
200 void (GLAPIENTRY *qglRotated)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
201 void (GLAPIENTRY *qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
202 void (GLAPIENTRY *qglScaled)(GLdouble x, GLdouble y, GLdouble z);
203 void (GLAPIENTRY *qglScalef)(GLfloat x, GLfloat y, GLfloat z);
204 void (GLAPIENTRY *qglTranslated)(GLdouble x, GLdouble y, GLdouble z);
205 void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
207 void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
209 void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
210 void (GLAPIENTRY *qglStencilMask)(GLuint mask);
211 void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
212 void (GLAPIENTRY *qglClearStencil)(GLint s);
214 void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
215 void (GLAPIENTRY *qglTexEnvfv)(GLenum target, GLenum pname, const GLfloat *params);
216 void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
217 void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
218 void (GLAPIENTRY *qglTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
219 void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
221 void (GLAPIENTRY *qglGenTextures)(GLsizei n, GLuint *textures);
222 void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
223 void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
224 //void (GLAPIENTRY *qglPrioritizeTextures)(GLsizei n, const GLuint *textures, const GLclampf *priorities);
225 //GLboolean (GLAPIENTRY *qglAreTexturesResident)(GLsizei n, const GLuint *textures, GLboolean *residences);
226 GLboolean (GLAPIENTRY *qglIsTexture)(GLuint texture);
227 void (GLAPIENTRY *qglPixelStoref)(GLenum pname, GLfloat param);
228 void (GLAPIENTRY *qglPixelStorei)(GLenum pname, GLint param);
230 void (GLAPIENTRY *qglTexImage1D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
231 void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
232 void (GLAPIENTRY *qglTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels);
233 void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
234 void (GLAPIENTRY *qglCopyTexImage1D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
235 void (GLAPIENTRY *qglCopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
236 void (GLAPIENTRY *qglCopyTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
237 void (GLAPIENTRY *qglCopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
240 void (GLAPIENTRY *qglDrawRangeElementsEXT)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
242 //void (GLAPIENTRY *qglColorTableEXT)(int, int, int, int, int, const void *);
244 void (GLAPIENTRY *qglTexImage3D)(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
245 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);
246 void (GLAPIENTRY *qglCopyTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
248 void (GLAPIENTRY *qglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
250 void (GLAPIENTRY *qglPolygonOffset)(GLfloat factor, GLfloat units);
251 void (GLAPIENTRY *qglPolygonMode)(GLenum face, GLenum mode);
252 void (GLAPIENTRY *qglPolygonStipple)(const GLubyte *mask);
254 //[515]: added on 29.07.2005
255 void (GLAPIENTRY *qglLineWidth)(GLfloat width);
256 void (GLAPIENTRY *qglPointSize)(GLfloat size);
258 void (GLAPIENTRY *qglBlendEquationEXT)(GLenum);
260 void (GLAPIENTRY *qglStencilOpSeparate)(GLenum, GLenum, GLenum, GLenum);
261 void (GLAPIENTRY *qglStencilFuncSeparate)(GLenum, GLenum, GLint, GLuint);
262 void (GLAPIENTRY *qglActiveStencilFaceEXT)(GLenum);
264 void (GLAPIENTRY *qglDeleteObjectARB)(GLhandleARB obj);
265 GLhandleARB (GLAPIENTRY *qglGetHandleARB)(GLenum pname);
266 void (GLAPIENTRY *qglDetachObjectARB)(GLhandleARB containerObj, GLhandleARB attachedObj);
267 GLhandleARB (GLAPIENTRY *qglCreateShaderObjectARB)(GLenum shaderType);
268 void (GLAPIENTRY *qglShaderSourceARB)(GLhandleARB shaderObj, GLsizei count, const GLcharARB **string, const GLint *length);
269 void (GLAPIENTRY *qglCompileShaderARB)(GLhandleARB shaderObj);
270 GLhandleARB (GLAPIENTRY *qglCreateProgramObjectARB)(void);
271 void (GLAPIENTRY *qglAttachObjectARB)(GLhandleARB containerObj, GLhandleARB obj);
272 void (GLAPIENTRY *qglLinkProgramARB)(GLhandleARB programObj);
273 void (GLAPIENTRY *qglUseProgramObjectARB)(GLhandleARB programObj);
274 void (GLAPIENTRY *qglValidateProgramARB)(GLhandleARB programObj);
275 void (GLAPIENTRY *qglUniform1fARB)(GLint location, GLfloat v0);
276 void (GLAPIENTRY *qglUniform2fARB)(GLint location, GLfloat v0, GLfloat v1);
277 void (GLAPIENTRY *qglUniform3fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
278 void (GLAPIENTRY *qglUniform4fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
279 void (GLAPIENTRY *qglUniform1iARB)(GLint location, GLint v0);
280 void (GLAPIENTRY *qglUniform2iARB)(GLint location, GLint v0, GLint v1);
281 void (GLAPIENTRY *qglUniform3iARB)(GLint location, GLint v0, GLint v1, GLint v2);
282 void (GLAPIENTRY *qglUniform4iARB)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
283 void (GLAPIENTRY *qglUniform1fvARB)(GLint location, GLsizei count, const GLfloat *value);
284 void (GLAPIENTRY *qglUniform2fvARB)(GLint location, GLsizei count, const GLfloat *value);
285 void (GLAPIENTRY *qglUniform3fvARB)(GLint location, GLsizei count, const GLfloat *value);
286 void (GLAPIENTRY *qglUniform4fvARB)(GLint location, GLsizei count, const GLfloat *value);
287 void (GLAPIENTRY *qglUniform1ivARB)(GLint location, GLsizei count, const GLint *value);
288 void (GLAPIENTRY *qglUniform2ivARB)(GLint location, GLsizei count, const GLint *value);
289 void (GLAPIENTRY *qglUniform3ivARB)(GLint location, GLsizei count, const GLint *value);
290 void (GLAPIENTRY *qglUniform4ivARB)(GLint location, GLsizei count, const GLint *value);
291 void (GLAPIENTRY *qglUniformMatrix2fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
292 void (GLAPIENTRY *qglUniformMatrix3fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
293 void (GLAPIENTRY *qglUniformMatrix4fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
294 void (GLAPIENTRY *qglGetObjectParameterfvARB)(GLhandleARB obj, GLenum pname, GLfloat *params);
295 void (GLAPIENTRY *qglGetObjectParameterivARB)(GLhandleARB obj, GLenum pname, GLint *params);
296 void (GLAPIENTRY *qglGetInfoLogARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *infoLog);
297 void (GLAPIENTRY *qglGetAttachedObjectsARB)(GLhandleARB containerObj, GLsizei maxCount, GLsizei *count, GLhandleARB *obj);
298 GLint (GLAPIENTRY *qglGetUniformLocationARB)(GLhandleARB programObj, const GLcharARB *name);
299 void (GLAPIENTRY *qglGetActiveUniformARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
300 void (GLAPIENTRY *qglGetUniformfvARB)(GLhandleARB programObj, GLint location, GLfloat *params);
301 void (GLAPIENTRY *qglGetUniformivARB)(GLhandleARB programObj, GLint location, GLint *params);
302 void (GLAPIENTRY *qglGetShaderSourceARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *source);
304 //void (GLAPIENTRY *qglVertexAttrib1fARB)(GLuint index, GLfloat v0);
305 //void (GLAPIENTRY *qglVertexAttrib1sARB)(GLuint index, GLshort v0);
306 //void (GLAPIENTRY *qglVertexAttrib1dARB)(GLuint index, GLdouble v0);
307 //void (GLAPIENTRY *qglVertexAttrib2fARB)(GLuint index, GLfloat v0, GLfloat v1);
308 //void (GLAPIENTRY *qglVertexAttrib2sARB)(GLuint index, GLshort v0, GLshort v1);
309 //void (GLAPIENTRY *qglVertexAttrib2dARB)(GLuint index, GLdouble v0, GLdouble v1);
310 //void (GLAPIENTRY *qglVertexAttrib3fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2);
311 //void (GLAPIENTRY *qglVertexAttrib3sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2);
312 //void (GLAPIENTRY *qglVertexAttrib3dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2);
313 //void (GLAPIENTRY *qglVertexAttrib4fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
314 //void (GLAPIENTRY *qglVertexAttrib4sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2, GLshort v3);
315 //void (GLAPIENTRY *qglVertexAttrib4dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2, GLdouble v3);
316 //void (GLAPIENTRY *qglVertexAttrib4NubARB)(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
317 //void (GLAPIENTRY *qglVertexAttrib1fvARB)(GLuint index, const GLfloat *v);
318 //void (GLAPIENTRY *qglVertexAttrib1svARB)(GLuint index, const GLshort *v);
319 //void (GLAPIENTRY *qglVertexAttrib1dvARB)(GLuint index, const GLdouble *v);
320 //void (GLAPIENTRY *qglVertexAttrib2fvARB)(GLuint index, const GLfloat *v);
321 //void (GLAPIENTRY *qglVertexAttrib2svARB)(GLuint index, const GLshort *v);
322 //void (GLAPIENTRY *qglVertexAttrib2dvARB)(GLuint index, const GLdouble *v);
323 //void (GLAPIENTRY *qglVertexAttrib3fvARB)(GLuint index, const GLfloat *v);
324 //void (GLAPIENTRY *qglVertexAttrib3svARB)(GLuint index, const GLshort *v);
325 //void (GLAPIENTRY *qglVertexAttrib3dvARB)(GLuint index, const GLdouble *v);
326 //void (GLAPIENTRY *qglVertexAttrib4fvARB)(GLuint index, const GLfloat *v);
327 //void (GLAPIENTRY *qglVertexAttrib4svARB)(GLuint index, const GLshort *v);
328 //void (GLAPIENTRY *qglVertexAttrib4dvARB)(GLuint index, const GLdouble *v);
329 //void (GLAPIENTRY *qglVertexAttrib4ivARB)(GLuint index, const GLint *v);
330 //void (GLAPIENTRY *qglVertexAttrib4bvARB)(GLuint index, const GLbyte *v);
331 //void (GLAPIENTRY *qglVertexAttrib4ubvARB)(GLuint index, const GLubyte *v);
332 //void (GLAPIENTRY *qglVertexAttrib4usvARB)(GLuint index, const GLushort *v);
333 //void (GLAPIENTRY *qglVertexAttrib4uivARB)(GLuint index, const GLuint *v);
334 //void (GLAPIENTRY *qglVertexAttrib4NbvARB)(GLuint index, const GLbyte *v);
335 //void (GLAPIENTRY *qglVertexAttrib4NsvARB)(GLuint index, const GLshort *v);
336 //void (GLAPIENTRY *qglVertexAttrib4NivARB)(GLuint index, const GLint *v);
337 //void (GLAPIENTRY *qglVertexAttrib4NubvARB)(GLuint index, const GLubyte *v);
338 //void (GLAPIENTRY *qglVertexAttrib4NusvARB)(GLuint index, const GLushort *v);
339 //void (GLAPIENTRY *qglVertexAttrib4NuivARB)(GLuint index, const GLuint *v);
340 void (GLAPIENTRY *qglVertexAttribPointerARB)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
341 void (GLAPIENTRY *qglEnableVertexAttribArrayARB)(GLuint index);
342 void (GLAPIENTRY *qglDisableVertexAttribArrayARB)(GLuint index);
343 void (GLAPIENTRY *qglBindAttribLocationARB)(GLhandleARB programObj, GLuint index, const GLcharARB *name);
344 void (GLAPIENTRY *qglGetActiveAttribARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
345 GLint (GLAPIENTRY *qglGetAttribLocationARB)(GLhandleARB programObj, const GLcharARB *name);
346 //void (GLAPIENTRY *qglGetVertexAttribdvARB)(GLuint index, GLenum pname, GLdouble *params);
347 //void (GLAPIENTRY *qglGetVertexAttribfvARB)(GLuint index, GLenum pname, GLfloat *params);
348 //void (GLAPIENTRY *qglGetVertexAttribivARB)(GLuint index, GLenum pname, GLint *params);
349 //void (GLAPIENTRY *qglGetVertexAttribPointervARB)(GLuint index, GLenum pname, GLvoid **pointer);
351 int GL_CheckExtension(const char *name, const dllfunction_t *funcs, const char *disableparm, int silent)
354 const dllfunction_t *func;
356 Con_Printf("checking for %s... ", name);
358 for (func = funcs;func && func->name;func++)
359 *func->funcvariable = NULL;
361 if (disableparm && (COM_CheckParm(disableparm) || COM_CheckParm("-safe")))
363 Con_Print("disabled by commandline\n");
367 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)))
369 for (func = funcs;func && func->name != NULL;func++)
371 // functions are cleared before all the extensions are evaluated
372 if (!(*func->funcvariable = (void *) GL_GetProcAddress(func->name)))
375 Con_Printf("OpenGL extension \"%s\" is missing function \"%s\" - broken driver!\n", name, func->name);
379 // delay the return so it prints all missing functions
382 Con_Print("enabled\n");
387 Con_Print("not detected\n");
392 static dllfunction_t opengl110funcs[] =
394 {"glClearColor", (void **) &qglClearColor},
395 {"glClear", (void **) &qglClear},
396 {"glAlphaFunc", (void **) &qglAlphaFunc},
397 {"glBlendFunc", (void **) &qglBlendFunc},
398 {"glCullFace", (void **) &qglCullFace},
399 {"glDrawBuffer", (void **) &qglDrawBuffer},
400 {"glReadBuffer", (void **) &qglReadBuffer},
401 {"glEnable", (void **) &qglEnable},
402 {"glDisable", (void **) &qglDisable},
403 {"glIsEnabled", (void **) &qglIsEnabled},
404 {"glEnableClientState", (void **) &qglEnableClientState},
405 {"glDisableClientState", (void **) &qglDisableClientState},
406 {"glGetBooleanv", (void **) &qglGetBooleanv},
407 {"glGetDoublev", (void **) &qglGetDoublev},
408 {"glGetFloatv", (void **) &qglGetFloatv},
409 {"glGetIntegerv", (void **) &qglGetIntegerv},
410 {"glGetError", (void **) &qglGetError},
411 {"glGetString", (void **) &qglGetString},
412 {"glFinish", (void **) &qglFinish},
413 {"glFlush", (void **) &qglFlush},
414 {"glClearDepth", (void **) &qglClearDepth},
415 {"glDepthFunc", (void **) &qglDepthFunc},
416 {"glDepthMask", (void **) &qglDepthMask},
417 {"glDepthRange", (void **) &qglDepthRange},
418 {"glDrawElements", (void **) &qglDrawElements},
419 {"glColorMask", (void **) &qglColorMask},
420 {"glVertexPointer", (void **) &qglVertexPointer},
421 {"glNormalPointer", (void **) &qglNormalPointer},
422 {"glColorPointer", (void **) &qglColorPointer},
423 {"glTexCoordPointer", (void **) &qglTexCoordPointer},
424 {"glArrayElement", (void **) &qglArrayElement},
425 {"glColor4f", (void **) &qglColor4f},
426 {"glTexCoord1f", (void **) &qglTexCoord1f},
427 {"glTexCoord2f", (void **) &qglTexCoord2f},
428 {"glTexCoord3f", (void **) &qglTexCoord3f},
429 {"glTexCoord4f", (void **) &qglTexCoord4f},
430 {"glVertex2f", (void **) &qglVertex2f},
431 {"glVertex3f", (void **) &qglVertex3f},
432 {"glBegin", (void **) &qglBegin},
433 {"glEnd", (void **) &qglEnd},
434 //[515]: added on 29.07.2005
435 {"glLineWidth", (void**) &qglLineWidth},
436 {"glPointSize", (void**) &qglPointSize},
438 {"glMatrixMode", (void **) &qglMatrixMode},
439 {"glOrtho", (void **) &qglOrtho},
440 {"glFrustum", (void **) &qglFrustum},
441 {"glViewport", (void **) &qglViewport},
442 {"glPushMatrix", (void **) &qglPushMatrix},
443 {"glPopMatrix", (void **) &qglPopMatrix},
444 {"glLoadIdentity", (void **) &qglLoadIdentity},
445 {"glLoadMatrixd", (void **) &qglLoadMatrixd},
446 {"glLoadMatrixf", (void **) &qglLoadMatrixf},
447 {"glMultMatrixd", (void **) &qglMultMatrixd},
448 {"glMultMatrixf", (void **) &qglMultMatrixf},
449 {"glRotated", (void **) &qglRotated},
450 {"glRotatef", (void **) &qglRotatef},
451 {"glScaled", (void **) &qglScaled},
452 {"glScalef", (void **) &qglScalef},
453 {"glTranslated", (void **) &qglTranslated},
454 {"glTranslatef", (void **) &qglTranslatef},
455 {"glReadPixels", (void **) &qglReadPixels},
456 {"glStencilFunc", (void **) &qglStencilFunc},
457 {"glStencilMask", (void **) &qglStencilMask},
458 {"glStencilOp", (void **) &qglStencilOp},
459 {"glClearStencil", (void **) &qglClearStencil},
460 {"glTexEnvf", (void **) &qglTexEnvf},
461 {"glTexEnvfv", (void **) &qglTexEnvfv},
462 {"glTexEnvi", (void **) &qglTexEnvi},
463 {"glTexParameterf", (void **) &qglTexParameterf},
464 {"glTexParameterfv", (void **) &qglTexParameterfv},
465 {"glTexParameteri", (void **) &qglTexParameteri},
466 {"glPixelStoref", (void **) &qglPixelStoref},
467 {"glPixelStorei", (void **) &qglPixelStorei},
468 {"glGenTextures", (void **) &qglGenTextures},
469 {"glDeleteTextures", (void **) &qglDeleteTextures},
470 {"glBindTexture", (void **) &qglBindTexture},
471 // {"glPrioritizeTextures", (void **) &qglPrioritizeTextures},
472 // {"glAreTexturesResident", (void **) &qglAreTexturesResident},
473 {"glIsTexture", (void **) &qglIsTexture},
474 {"glTexImage1D", (void **) &qglTexImage1D},
475 {"glTexImage2D", (void **) &qglTexImage2D},
476 {"glTexSubImage1D", (void **) &qglTexSubImage1D},
477 {"glTexSubImage2D", (void **) &qglTexSubImage2D},
478 {"glCopyTexImage1D", (void **) &qglCopyTexImage1D},
479 {"glCopyTexImage2D", (void **) &qglCopyTexImage2D},
480 {"glCopyTexSubImage1D", (void **) &qglCopyTexSubImage1D},
481 {"glCopyTexSubImage2D", (void **) &qglCopyTexSubImage2D},
482 {"glScissor", (void **) &qglScissor},
483 {"glPolygonOffset", (void **) &qglPolygonOffset},
484 {"glPolygonMode", (void **) &qglPolygonMode},
485 {"glPolygonStipple", (void **) &qglPolygonStipple},
489 static dllfunction_t drawrangeelementsfuncs[] =
491 {"glDrawRangeElements", (void **) &qglDrawRangeElements},
495 static dllfunction_t drawrangeelementsextfuncs[] =
497 {"glDrawRangeElementsEXT", (void **) &qglDrawRangeElementsEXT},
501 static dllfunction_t multitexturefuncs[] =
503 {"glMultiTexCoord1fARB", (void **) &qglMultiTexCoord1f},
504 {"glMultiTexCoord2fARB", (void **) &qglMultiTexCoord2f},
505 {"glMultiTexCoord3fARB", (void **) &qglMultiTexCoord3f},
506 {"glMultiTexCoord4fARB", (void **) &qglMultiTexCoord4f},
507 {"glActiveTextureARB", (void **) &qglActiveTexture},
508 {"glClientActiveTextureARB", (void **) &qglClientActiveTexture},
512 static dllfunction_t compiledvertexarrayfuncs[] =
514 {"glLockArraysEXT", (void **) &qglLockArraysEXT},
515 {"glUnlockArraysEXT", (void **) &qglUnlockArraysEXT},
519 static dllfunction_t texture3dextfuncs[] =
521 {"glTexImage3DEXT", (void **) &qglTexImage3D},
522 {"glTexSubImage3DEXT", (void **) &qglTexSubImage3D},
523 {"glCopyTexSubImage3DEXT", (void **) &qglCopyTexSubImage3D},
527 static dllfunction_t atiseparatestencilfuncs[] =
529 {"glStencilOpSeparateATI", (void **) &qglStencilOpSeparate},
530 {"glStencilFuncSeparateATI", (void **) &qglStencilFuncSeparate},
534 static dllfunction_t gl2separatestencilfuncs[] =
536 {"glStencilOpSeparate", (void **) &qglStencilOpSeparate},
537 {"glStencilFuncSeparate", (void **) &qglStencilFuncSeparate},
541 static dllfunction_t stenciltwosidefuncs[] =
543 {"glActiveStencilFaceEXT", (void **) &qglActiveStencilFaceEXT},
547 static dllfunction_t blendequationfuncs[] =
549 {"glBlendEquationEXT", (void **) &qglBlendEquationEXT},
553 static dllfunction_t shaderobjectsfuncs[] =
555 {"glDeleteObjectARB", (void **) &qglDeleteObjectARB},
556 {"glGetHandleARB", (void **) &qglGetHandleARB},
557 {"glDetachObjectARB", (void **) &qglDetachObjectARB},
558 {"glCreateShaderObjectARB", (void **) &qglCreateShaderObjectARB},
559 {"glShaderSourceARB", (void **) &qglShaderSourceARB},
560 {"glCompileShaderARB", (void **) &qglCompileShaderARB},
561 {"glCreateProgramObjectARB", (void **) &qglCreateProgramObjectARB},
562 {"glAttachObjectARB", (void **) &qglAttachObjectARB},
563 {"glLinkProgramARB", (void **) &qglLinkProgramARB},
564 {"glUseProgramObjectARB", (void **) &qglUseProgramObjectARB},
565 {"glValidateProgramARB", (void **) &qglValidateProgramARB},
566 {"glUniform1fARB", (void **) &qglUniform1fARB},
567 {"glUniform2fARB", (void **) &qglUniform2fARB},
568 {"glUniform3fARB", (void **) &qglUniform3fARB},
569 {"glUniform4fARB", (void **) &qglUniform4fARB},
570 {"glUniform1iARB", (void **) &qglUniform1iARB},
571 {"glUniform2iARB", (void **) &qglUniform2iARB},
572 {"glUniform3iARB", (void **) &qglUniform3iARB},
573 {"glUniform4iARB", (void **) &qglUniform4iARB},
574 {"glUniform1fvARB", (void **) &qglUniform1fvARB},
575 {"glUniform2fvARB", (void **) &qglUniform2fvARB},
576 {"glUniform3fvARB", (void **) &qglUniform3fvARB},
577 {"glUniform4fvARB", (void **) &qglUniform4fvARB},
578 {"glUniform1ivARB", (void **) &qglUniform1ivARB},
579 {"glUniform2ivARB", (void **) &qglUniform2ivARB},
580 {"glUniform3ivARB", (void **) &qglUniform3ivARB},
581 {"glUniform4ivARB", (void **) &qglUniform4ivARB},
582 {"glUniformMatrix2fvARB", (void **) &qglUniformMatrix2fvARB},
583 {"glUniformMatrix3fvARB", (void **) &qglUniformMatrix3fvARB},
584 {"glUniformMatrix4fvARB", (void **) &qglUniformMatrix4fvARB},
585 {"glGetObjectParameterfvARB", (void **) &qglGetObjectParameterfvARB},
586 {"glGetObjectParameterivARB", (void **) &qglGetObjectParameterivARB},
587 {"glGetInfoLogARB", (void **) &qglGetInfoLogARB},
588 {"glGetAttachedObjectsARB", (void **) &qglGetAttachedObjectsARB},
589 {"glGetUniformLocationARB", (void **) &qglGetUniformLocationARB},
590 {"glGetActiveUniformARB", (void **) &qglGetActiveUniformARB},
591 {"glGetUniformfvARB", (void **) &qglGetUniformfvARB},
592 {"glGetUniformivARB", (void **) &qglGetUniformivARB},
593 {"glGetShaderSourceARB", (void **) &qglGetShaderSourceARB},
597 static dllfunction_t vertexshaderfuncs[] =
599 // {"glVertexAttrib1fARB", (void **) &qglVertexAttrib1fARB},
600 // {"glVertexAttrib1sARB", (void **) &qglVertexAttrib1sARB},
601 // {"glVertexAttrib1dARB", (void **) &qglVertexAttrib1dARB},
602 // {"glVertexAttrib2fARB", (void **) &qglVertexAttrib2fARB},
603 // {"glVertexAttrib2sARB", (void **) &qglVertexAttrib2sARB},
604 // {"glVertexAttrib2dARB", (void **) &qglVertexAttrib2dARB},
605 // {"glVertexAttrib3fARB", (void **) &qglVertexAttrib3fARB},
606 // {"glVertexAttrib3sARB", (void **) &qglVertexAttrib3sARB},
607 // {"glVertexAttrib3dARB", (void **) &qglVertexAttrib3dARB},
608 // {"glVertexAttrib4fARB", (void **) &qglVertexAttrib4fARB},
609 // {"glVertexAttrib4sARB", (void **) &qglVertexAttrib4sARB},
610 // {"glVertexAttrib4dARB", (void **) &qglVertexAttrib4dARB},
611 // {"glVertexAttrib4NubARB", (void **) &qglVertexAttrib4NubARB},
612 // {"glVertexAttrib1fvARB", (void **) &qglVertexAttrib1fvARB},
613 // {"glVertexAttrib1svARB", (void **) &qglVertexAttrib1svARB},
614 // {"glVertexAttrib1dvARB", (void **) &qglVertexAttrib1dvARB},
615 // {"glVertexAttrib2fvARB", (void **) &qglVertexAttrib1fvARB},
616 // {"glVertexAttrib2svARB", (void **) &qglVertexAttrib1svARB},
617 // {"glVertexAttrib2dvARB", (void **) &qglVertexAttrib1dvARB},
618 // {"glVertexAttrib3fvARB", (void **) &qglVertexAttrib1fvARB},
619 // {"glVertexAttrib3svARB", (void **) &qglVertexAttrib1svARB},
620 // {"glVertexAttrib3dvARB", (void **) &qglVertexAttrib1dvARB},
621 // {"glVertexAttrib4fvARB", (void **) &qglVertexAttrib1fvARB},
622 // {"glVertexAttrib4svARB", (void **) &qglVertexAttrib1svARB},
623 // {"glVertexAttrib4dvARB", (void **) &qglVertexAttrib1dvARB},
624 // {"glVertexAttrib4ivARB", (void **) &qglVertexAttrib1ivARB},
625 // {"glVertexAttrib4bvARB", (void **) &qglVertexAttrib1bvARB},
626 // {"glVertexAttrib4ubvARB", (void **) &qglVertexAttrib1ubvARB},
627 // {"glVertexAttrib4usvARB", (void **) &qglVertexAttrib1usvARB},
628 // {"glVertexAttrib4uivARB", (void **) &qglVertexAttrib1uivARB},
629 // {"glVertexAttrib4NbvARB", (void **) &qglVertexAttrib1NbvARB},
630 // {"glVertexAttrib4NsvARB", (void **) &qglVertexAttrib1NsvARB},
631 // {"glVertexAttrib4NivARB", (void **) &qglVertexAttrib1NivARB},
632 // {"glVertexAttrib4NubvARB", (void **) &qglVertexAttrib1NubvARB},
633 // {"glVertexAttrib4NusvARB", (void **) &qglVertexAttrib1NusvARB},
634 // {"glVertexAttrib4NuivARB", (void **) &qglVertexAttrib1NuivARB},
635 {"glVertexAttribPointerARB", (void **) &qglVertexAttribPointerARB},
636 {"glEnableVertexAttribArrayARB", (void **) &qglEnableVertexAttribArrayARB},
637 {"glDisableVertexAttribArrayARB", (void **) &qglDisableVertexAttribArrayARB},
638 {"glBindAttribLocationARB", (void **) &qglBindAttribLocationARB},
639 {"glGetActiveAttribARB", (void **) &qglGetActiveAttribARB},
640 {"glGetAttribLocationARB", (void **) &qglGetAttribLocationARB},
641 // {"glGetVertexAttribdvARB", (void **) &qglGetVertexAttribdvARB},
642 // {"glGetVertexAttribfvARB", (void **) &qglGetVertexAttribfvARB},
643 // {"glGetVertexAttribivARB", (void **) &qglGetVertexAttribivARB},
644 // {"glGetVertexAttribPointervARB", (void **) &qglGetVertexAttribPointervARB},
649 void VID_CheckExtensions(void)
651 gl_stencil = vid_bitsperpixel.integer == 32;
653 // reset all the gl extension variables here
654 // this should match the declarations
655 gl_max_texture_size = 0;
656 gl_max_3d_texture_size = 0;
657 gl_max_cube_map_texture_size = 0;
659 gl_combine_extension = false;
660 gl_supportslockarrays = false;
661 gl_texture3d = false;
662 gl_texturecubemap = false;
663 gl_support_arb_texture_non_power_of_two = false;
665 gl_support_clamptoedge = false;
666 gl_support_anisotropy = false;
667 gl_max_anisotropy = 1;
668 gl_support_separatestencil = false;
669 gl_support_stenciltwoside = false;
670 gl_support_ext_blend_minmax = false;
671 gl_support_ext_blend_subtract = false;
672 gl_support_shader_objects = false;
673 gl_support_shading_language_100 = false;
674 gl_support_vertex_shader = false;
675 gl_support_fragment_shader = false;
677 if (!GL_CheckExtension("OpenGL 1.1.0", opengl110funcs, NULL, false))
678 Sys_Error("OpenGL 1.1.0 functions not found");
680 Con_Printf("GL_VENDOR: %s\n", gl_vendor);
681 Con_Printf("GL_RENDERER: %s\n", gl_renderer);
682 Con_Printf("GL_VERSION: %s\n", gl_version);
683 Con_Printf("GL_EXTENSIONS: %s\n", gl_extensions);
684 Con_Printf("%s_EXTENSIONS: %s\n", gl_platform, gl_platformextensions);
687 qglGetIntegerv(GL_MAX_TEXTURE_SIZE, &gl_max_texture_size);
689 Con_Print("Checking OpenGL extensions...\n");
691 // COMMANDLINEOPTION: GL: -nodrawrangeelements disables GL_EXT_draw_range_elements (renders faster)
692 if (!GL_CheckExtension("glDrawRangeElements", drawrangeelementsfuncs, "-nodrawrangeelements", true))
693 GL_CheckExtension("GL_EXT_draw_range_elements", drawrangeelementsextfuncs, "-nodrawrangeelements", false);
695 // COMMANDLINEOPTION: GL: -nomtex disables GL_ARB_multitexture (required for faster map rendering)
696 if (GL_CheckExtension("GL_ARB_multitexture", multitexturefuncs, "-nomtex", false))
698 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &gl_textureunits);
699 // COMMANDLINEOPTION: GL: -nocombine disables GL_ARB_texture_env_combine or GL_EXT_texture_env_combine (required for bumpmapping and faster map rendering)
700 gl_combine_extension = GL_CheckExtension("GL_ARB_texture_env_combine", NULL, "-nocombine", false) || GL_CheckExtension("GL_EXT_texture_env_combine", NULL, "-nocombine", false);
701 // COMMANDLINEOPTION: GL: -nodot3 disables GL_ARB_texture_env_dot3 (required for bumpmapping)
702 if (gl_combine_extension)
703 gl_dot3arb = GL_CheckExtension("GL_ARB_texture_env_dot3", NULL, "-nodot3", false);
706 // COMMANDLINEOPTION: GL: -notexture3d disables GL_EXT_texture3D (required for spherical lights, otherwise they render as a column)
707 if ((gl_texture3d = GL_CheckExtension("GL_EXT_texture3D", texture3dextfuncs, "-notexture3d", false)))
709 qglGetIntegerv(GL_MAX_3D_TEXTURE_SIZE, &gl_max_3d_texture_size);
710 if (gl_max_3d_texture_size < 32)
712 gl_texture3d = false;
713 Con_Printf("GL_EXT_texture3D reported bogus GL_MAX_3D_TEXTURE_SIZE, disabled\n");
716 // COMMANDLINEOPTION: GL: -nocubemap disables GL_ARB_texture_cube_map (required for bumpmapping)
717 if ((gl_texturecubemap = GL_CheckExtension("GL_ARB_texture_cube_map", NULL, "-nocubemap", false)))
718 qglGetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, &gl_max_cube_map_texture_size);
719 gl_support_arb_texture_non_power_of_two = GL_CheckExtension("GL_ARB_texture_non_power_of_two", NULL, "-notexturenonpoweroftwo", false);
720 // COMMANDLINEOPTION: GL: -nocva disables GL_EXT_compiled_vertex_array (renders faster)
721 gl_supportslockarrays = GL_CheckExtension("GL_EXT_compiled_vertex_array", compiledvertexarrayfuncs, "-nocva", false);
722 // 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)
723 gl_support_clamptoedge = GL_CheckExtension("GL_EXT_texture_edge_clamp", NULL, "-noedgeclamp", false) || GL_CheckExtension("GL_SGIS_texture_edge_clamp", NULL, "-noedgeclamp", false);
725 // COMMANDLINEOPTION: GL: -noanisotropy disables GL_EXT_texture_filter_anisotropic (allows higher quality texturing)
726 if ((gl_support_anisotropy = GL_CheckExtension("GL_EXT_texture_filter_anisotropic", NULL, "-noanisotropy", false)))
727 qglGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &gl_max_anisotropy);
729 gl_support_ext_blend_minmax = GL_CheckExtension("GL_EXT_blend_minmax", blendequationfuncs, "-noblendminmax", false);
730 gl_support_ext_blend_subtract = GL_CheckExtension("GL_EXT_blend_subtract", blendequationfuncs, "-noblendsubtract", false);
732 // COMMANDLINEOPTION: GL: -noseparatestencil disables use of OpenGL2.0 glStencilOpSeparate and GL_ATI_separate_stencil extensions (which accelerate shadow rendering)
733 if (!(gl_support_separatestencil = GL_CheckExtension("glStencilOpSeparate", gl2separatestencilfuncs, "-noseparatestencil", false)))
734 gl_support_separatestencil = GL_CheckExtension("GL_ATI_separate_stencil", atiseparatestencilfuncs, "-noseparatestencil", false);
735 // COMMANDLINEOPTION: GL: -nostenciltwoside disables GL_EXT_stencil_two_side (which accelerate shadow rendering)
736 gl_support_stenciltwoside = GL_CheckExtension("GL_EXT_stencil_two_side", stenciltwosidefuncs, "-nostenciltwoside", false);
738 // we don't care if it's an extension or not, they are identical functions, so keep it simple in the rendering code
739 if (qglDrawRangeElements == NULL)
740 qglDrawRangeElements = qglDrawRangeElementsEXT;
742 // COMMANDLINEOPTION: GL: -noshaderobjects disables GL_ARB_shader_objects (required for vertex shader and fragment shader)
743 // COMMANDLINEOPTION: GL: -noshadinglanguage100 disables GL_ARB_shading_language_100 (required for vertex shader and fragment shader)
744 // COMMANDLINEOPTION: GL: -novertexshader disables GL_ARB_vertex_shader (allows vertex shader effects)
745 // COMMANDLINEOPTION: GL: -nofragmentshader disables GL_ARB_fragment_shader (allows pixel shader effects, can improve per pixel lighting performance and capabilities)
746 if ((gl_support_shader_objects = GL_CheckExtension("GL_ARB_shader_objects", shaderobjectsfuncs, "-noshaderobjects", false)))
747 if ((gl_support_shading_language_100 = GL_CheckExtension("GL_ARB_shading_language_100", NULL, "-noshadinglanguage100", false)))
748 if ((gl_support_vertex_shader = GL_CheckExtension("GL_ARB_vertex_shader", vertexshaderfuncs, "-novertexshader", false)))
749 gl_support_fragment_shader = GL_CheckExtension("GL_ARB_fragment_shader", NULL, "-nofragmentshader", false);
753 void Force_CenterView_f (void)
755 cl.viewangles[PITCH] = 0;
758 static int gamma_forcenextframe = false;
759 static float cachegamma, cachebrightness, cachecontrast, cacheblack[3], cachegrey[3], cachewhite[3];
760 static int cachecolorenable, cachehwgamma;
761 void VID_UpdateGamma(qboolean force, int rampsize)
767 // LordHavoc: don't mess with gamma tables if running dedicated
768 if (cls.state == ca_dedicated)
771 wantgamma = (vid_activewindow ? v_hwgamma.integer : 0);
772 #define BOUNDCVAR(cvar, m1, m2) c = &(cvar);f = bound(m1, c->value, m2);if (c->value != f) Cvar_SetValueQuick(c, f);
773 BOUNDCVAR(v_gamma, 0.1, 5);
774 BOUNDCVAR(v_contrast, 1, 5);
775 BOUNDCVAR(v_brightness, 0, 0.8);
776 BOUNDCVAR(v_color_black_r, 0, 0.8);
777 BOUNDCVAR(v_color_black_g, 0, 0.8);
778 BOUNDCVAR(v_color_black_b, 0, 0.8);
779 BOUNDCVAR(v_color_grey_r, 0, 0.95);
780 BOUNDCVAR(v_color_grey_g, 0, 0.95);
781 BOUNDCVAR(v_color_grey_b, 0, 0.95);
782 BOUNDCVAR(v_color_white_r, 1, 5);
783 BOUNDCVAR(v_color_white_g, 1, 5);
784 BOUNDCVAR(v_color_white_b, 1, 5);
787 if (force || v_psycho.integer)
788 gamma_forcenextframe = true;
789 #define GAMMACHECK(cache, value) if (cache != (value)) gamma_forcenextframe = true;cache = (value)
790 GAMMACHECK(cachehwgamma , wantgamma);
791 GAMMACHECK(cachegamma , v_gamma.value);
792 GAMMACHECK(cachecontrast , v_contrast.value);
793 GAMMACHECK(cachebrightness , v_brightness.value);
794 GAMMACHECK(cachecolorenable, v_color_enable.integer);
795 GAMMACHECK(cacheblack[0] , v_color_black_r.value);
796 GAMMACHECK(cacheblack[1] , v_color_black_g.value);
797 GAMMACHECK(cacheblack[2] , v_color_black_b.value);
798 GAMMACHECK(cachegrey[0] , v_color_grey_r.value);
799 GAMMACHECK(cachegrey[1] , v_color_grey_g.value);
800 GAMMACHECK(cachegrey[2] , v_color_grey_b.value);
801 GAMMACHECK(cachewhite[0] , v_color_white_r.value);
802 GAMMACHECK(cachewhite[1] , v_color_white_g.value);
803 GAMMACHECK(cachewhite[2] , v_color_white_b.value);
806 if (!gamma_forcenextframe)
809 gamma_forcenextframe = false;
813 if (!vid_usinghwgamma)
815 vid_usinghwgamma = true;
816 if (vid_gammarampsize != rampsize || !vid_gammaramps)
818 vid_gammarampsize = rampsize;
820 Z_Free(vid_gammaramps);
821 vid_gammaramps = (unsigned short *)Z_Malloc(6 * vid_gammarampsize * sizeof(unsigned short));
822 vid_systemgammaramps = vid_gammaramps + 3 * vid_gammarampsize;
824 VID_GetGamma(vid_systemgammaramps, vid_gammarampsize);
827 if (cachecolorenable)
829 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[0]), cachewhite[0], cacheblack[0], vid_gammaramps, rampsize);
830 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[1]), cachewhite[1], cacheblack[1], vid_gammaramps + vid_gammarampsize, rampsize);
831 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[2]), cachewhite[2], cacheblack[2], vid_gammaramps + vid_gammarampsize*2, rampsize);
835 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps, rampsize);
836 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps + vid_gammarampsize, rampsize);
837 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps + vid_gammarampsize*2, rampsize);
840 // LordHavoc: this code came from Ben Winslow and Zinx Verituse, I have
841 // immensely butchered it to work with variable framerates and fit in with
842 // the rest of darkplaces.
843 if (v_psycho.integer)
847 static float n[3], nd[3], nt[3];
848 static int init = true;
849 unsigned short *ramp;
850 gamma_forcenextframe = true;
854 for (x = 0;x < 3;x++)
856 n[x] = lhrandom(0, 1);
857 nd[x] = (rand()&1)?-0.25:0.25;
858 nt[x] = lhrandom(1, 8.2);
862 for (x = 0;x < 3;x++)
864 nt[x] -= cl.realframetime;
868 nt[x] += lhrandom(1, 8.2);
870 n[x] += nd[x] * cl.realframetime;
874 for (x = 0, ramp = vid_gammaramps;x < 3;x++)
875 for (y = 0, t = n[x] - 0.75f;y < vid_gammarampsize;y++, t += 0.75f * (2.0f / vid_gammarampsize))
876 *ramp++ = (unsigned short)(cos(t*(M_PI*2.0)) * 32767.0f + 32767.0f);
879 // set vid_hardwaregammasupported to true if VID_SetGamma succeeds, OR if vid_hwgamma is >= 2 (forced gamma - ignores driver return value)
880 Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_gammaramps, vid_gammarampsize) || cachehwgamma >= 2);
881 // if custom gamma ramps failed (Windows stupidity), restore to system gamma
882 if(!vid_hardwaregammasupported.integer)
884 if (vid_usinghwgamma)
886 vid_usinghwgamma = false;
887 VID_SetGamma(vid_systemgammaramps, vid_gammarampsize);
893 if (vid_usinghwgamma)
895 vid_usinghwgamma = false;
896 VID_SetGamma(vid_systemgammaramps, vid_gammarampsize);
901 void VID_RestoreSystemGamma(void)
903 if (vid_usinghwgamma)
905 vid_usinghwgamma = false;
906 Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_systemgammaramps, vid_gammarampsize));
907 // force gamma situation to be reexamined next frame
908 gamma_forcenextframe = true;
912 void VID_Shared_Init(void)
914 Cvar_RegisterVariable(&vid_hardwaregammasupported);
915 Cvar_RegisterVariable(&v_gamma);
916 Cvar_RegisterVariable(&v_brightness);
917 Cvar_RegisterVariable(&v_contrast);
919 Cvar_RegisterVariable(&v_color_enable);
920 Cvar_RegisterVariable(&v_color_black_r);
921 Cvar_RegisterVariable(&v_color_black_g);
922 Cvar_RegisterVariable(&v_color_black_b);
923 Cvar_RegisterVariable(&v_color_grey_r);
924 Cvar_RegisterVariable(&v_color_grey_g);
925 Cvar_RegisterVariable(&v_color_grey_b);
926 Cvar_RegisterVariable(&v_color_white_r);
927 Cvar_RegisterVariable(&v_color_white_g);
928 Cvar_RegisterVariable(&v_color_white_b);
930 Cvar_RegisterVariable(&v_hwgamma);
932 Cvar_RegisterVariable(&v_psycho);
934 Cvar_RegisterVariable(&vid_fullscreen);
935 Cvar_RegisterVariable(&vid_width);
936 Cvar_RegisterVariable(&vid_height);
937 Cvar_RegisterVariable(&vid_bitsperpixel);
938 Cvar_RegisterVariable(&vid_refreshrate);
939 Cvar_RegisterVariable(&vid_stereobuffer);
940 Cvar_RegisterVariable(&vid_vsync);
941 Cvar_RegisterVariable(&vid_mouse);
942 Cvar_RegisterVariable(&vid_grabkeyboard);
943 Cvar_RegisterVariable(&vid_minwidth);
944 Cvar_RegisterVariable(&vid_minheight);
945 Cvar_RegisterVariable(&gl_combine);
946 Cvar_RegisterVariable(&gl_finish);
947 Cmd_AddCommand("force_centerview", Force_CenterView_f, "recenters view (stops looking up/down)");
948 Cmd_AddCommand("vid_restart", VID_Restart_f, "restarts video system (closes and reopens the window, restarts renderer)");
949 if (gamemode == GAME_GOODVSBAD2)
950 Cvar_Set("gl_combine", "0");
953 int VID_Mode(int fullscreen, int width, int height, int bpp, int refreshrate, int stereobuffer)
955 Con_Printf("Video: %s %dx%dx%dx%dhz%s\n", fullscreen ? "fullscreen" : "window", width, height, bpp, refreshrate, stereobuffer ? " stereo" : "");
956 if (VID_InitMode(fullscreen, width, height, bpp, refreshrate, stereobuffer))
958 vid.fullscreen = fullscreen;
961 vid.bitsperpixel = bpp;
962 vid.refreshrate = refreshrate;
963 vid.stereobuffer = stereobuffer;
964 Cvar_SetValueQuick(&vid_fullscreen, fullscreen);
965 Cvar_SetValueQuick(&vid_width, width);
966 Cvar_SetValueQuick(&vid_height, height);
967 Cvar_SetValueQuick(&vid_bitsperpixel, bpp);
968 Cvar_SetValueQuick(&vid_refreshrate, refreshrate);
969 Cvar_SetValueQuick(&vid_stereobuffer, stereobuffer);
976 static void VID_OpenSystems(void)
982 static void VID_CloseSystems(void)
985 R_Modules_Shutdown();
988 qboolean vid_commandlinecheck = true;
990 void VID_Restart_f(void)
992 // don't crash if video hasn't started yet
993 if (vid_commandlinecheck)
996 Con_Printf("VID_Restart: changing from %s %dx%dx%dbpp, to %s %dx%dx%dbpp.\n",
997 vid.fullscreen ? "fullscreen" : "window", vid.width, vid.height, vid.bitsperpixel,
998 vid_fullscreen.integer ? "fullscreen" : "window", vid_width.integer, vid_height.integer, vid_bitsperpixel.integer);
1001 if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.integer, vid_stereobuffer.integer))
1003 Con_Print("Video mode change failed\n");
1004 if (!VID_Mode(vid.fullscreen, vid.width, vid.height, vid.bitsperpixel, vid.refreshrate, vid.stereobuffer))
1005 Sys_Error("Unable to restore to last working video mode");
1010 // this is only called once by Host_StartVideo
1011 void VID_Start(void)
1013 int i, width, height, success;
1014 if (vid_commandlinecheck)
1016 // interpret command-line parameters
1017 vid_commandlinecheck = false;
1018 // COMMANDLINEOPTION: Video: -window performs +vid_fullscreen 0
1019 if (COM_CheckParm("-window") || COM_CheckParm("-safe"))
1020 Cvar_SetValueQuick(&vid_fullscreen, false);
1021 // COMMANDLINEOPTION: Video: -fullscreen performs +vid_fullscreen 1
1022 if (COM_CheckParm("-fullscreen"))
1023 Cvar_SetValueQuick(&vid_fullscreen, true);
1026 // 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)
1027 if ((i = COM_CheckParm("-width")) != 0)
1028 width = atoi(com_argv[i+1]);
1029 // 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)
1030 if ((i = COM_CheckParm("-height")) != 0)
1031 height = atoi(com_argv[i+1]);
1033 width = height * 4 / 3;
1035 height = width * 3 / 4;
1037 Cvar_SetValueQuick(&vid_width, width);
1039 Cvar_SetValueQuick(&vid_height, height);
1040 // COMMANDLINEOPTION: Video: -bpp <bits> performs +vid_bitsperpixel <bits> (example -bpp 32 or -bpp 16)
1041 if ((i = COM_CheckParm("-bpp")) != 0)
1042 Cvar_SetQuick(&vid_bitsperpixel, com_argv[i+1]);
1045 Con_Print("Starting video system\n");
1046 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.integer, vid_stereobuffer.integer);
1049 Con_Print("Desired video mode fail, trying fallbacks...\n");
1050 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, 60, vid_stereobuffer.integer);
1051 if (!success && vid_stereobuffer.integer)
1052 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.integer, false);
1053 if (!success && vid_bitsperpixel.integer > 16)
1054 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, 16, 60, false);
1055 if (!success && (vid_width.integer > 640 || vid_height.integer > 480))
1056 success = VID_Mode(vid_fullscreen.integer, 640, 480, 16, 60, false);
1057 if (!success && vid_fullscreen.integer)
1058 success = VID_Mode(false, 640, 480, 16, 60, false);
1060 Sys_Error("Video modes failed");