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;
61 //GL_ARB_vertex_buffer_object
62 int gl_support_arb_vertex_buffer_object;
64 // LordHavoc: if window is hidden, don't update screen
65 qboolean vid_hidden = true;
66 // LordHavoc: if window is not the active window, don't hog as much CPU time,
67 // let go of the mouse, turn off sound, and restore system gamma ramps...
68 qboolean vid_activewindow = true;
70 // we don't know until we try it!
71 cvar_t vid_hardwaregammasupported = {CVAR_READONLY,"vid_hardwaregammasupported","1", "indicates whether hardware gamma is supported (updated by attempts to set hardware gamma ramps)"};
72 // whether hardware gamma ramps are currently in effect
73 qboolean vid_usinghwgamma = false;
75 int vid_gammarampsize = 0;
76 unsigned short *vid_gammaramps = NULL;
77 unsigned short *vid_systemgammaramps = NULL;
79 cvar_t vid_fullscreen = {CVAR_SAVE, "vid_fullscreen", "1", "use fullscreen (1) or windowed (0)"};
80 cvar_t vid_width = {CVAR_SAVE, "vid_width", "640", "resolution"};
81 cvar_t vid_height = {CVAR_SAVE, "vid_height", "480", "resolution"};
82 cvar_t vid_bitsperpixel = {CVAR_SAVE, "vid_bitsperpixel", "32", "how many bits per pixel to render at (32 or 16, 32 is recommended)"};
83 cvar_t vid_refreshrate = {CVAR_SAVE, "vid_refreshrate", "60", "refresh rate to use, in hz (higher values flicker less, if supported by your monitor)"};
84 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"};
86 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"};
87 cvar_t vid_mouse = {CVAR_SAVE, "vid_mouse", "1", "whether to use the mouse in windowed mode (fullscreen always does)"};
88 cvar_t vid_grabkeyboard = {CVAR_SAVE, "vid_grabkeyboard", "0", "whether to grab the keyboard when mouse is active (prevents use of volume control keys, music player keys, etc on some keyboards)"};
89 cvar_t vid_minwidth = {0, "vid_minwidth", "0", "minimum vid_width that is acceptable (to be set in default.cfg in mods)"};
90 cvar_t vid_minheight = {0, "vid_minheight", "0", "minimum vid_height that is acceptable (to be set in default.cfg in mods)"};
91 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)"};
92 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)"};
94 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"};
95 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)"};
96 cvar_t v_brightness = {CVAR_SAVE, "v_brightness", "0", "brightness of black, useful for monitors that are too dark"};
97 cvar_t v_color_enable = {CVAR_SAVE, "v_color_enable", "0", "enables black-grey-white color correction curve controls"};
98 cvar_t v_color_black_r = {CVAR_SAVE, "v_color_black_r", "0", "desired color of black"};
99 cvar_t v_color_black_g = {CVAR_SAVE, "v_color_black_g", "0", "desired color of black"};
100 cvar_t v_color_black_b = {CVAR_SAVE, "v_color_black_b", "0", "desired color of black"};
101 cvar_t v_color_grey_r = {CVAR_SAVE, "v_color_grey_r", "0.5", "desired color of grey"};
102 cvar_t v_color_grey_g = {CVAR_SAVE, "v_color_grey_g", "0.5", "desired color of grey"};
103 cvar_t v_color_grey_b = {CVAR_SAVE, "v_color_grey_b", "0.5", "desired color of grey"};
104 cvar_t v_color_white_r = {CVAR_SAVE, "v_color_white_r", "1", "desired color of white"};
105 cvar_t v_color_white_g = {CVAR_SAVE, "v_color_white_g", "1", "desired color of white"};
106 cvar_t v_color_white_b = {CVAR_SAVE, "v_color_white_b", "1", "desired color of white"};
107 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"};
108 cvar_t v_psycho = {0, "v_psycho", "0", "easter egg (does not work on Windows2000 or above)"};
110 // brand of graphics chip
111 const char *gl_vendor;
112 // graphics chip model and other information
113 const char *gl_renderer;
114 // begins with 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0
115 const char *gl_version;
116 // extensions list, space separated
117 const char *gl_extensions;
119 const char *gl_platform;
120 // another extensions list, containing platform-specific extensions that are
121 // not in the main list
122 const char *gl_platformextensions;
123 // name of driver library (opengl32.dll, libGL.so.1, or whatever)
126 // GL_ARB_multitexture
127 void (GLAPIENTRY *qglMultiTexCoord1f) (GLenum, GLfloat);
128 void (GLAPIENTRY *qglMultiTexCoord2f) (GLenum, GLfloat, GLfloat);
129 void (GLAPIENTRY *qglMultiTexCoord3f) (GLenum, GLfloat, GLfloat, GLfloat);
130 void (GLAPIENTRY *qglMultiTexCoord4f) (GLenum, GLfloat, GLfloat, GLfloat, GLfloat);
131 void (GLAPIENTRY *qglActiveTexture) (GLenum);
132 void (GLAPIENTRY *qglClientActiveTexture) (GLenum);
134 // GL_EXT_compiled_vertex_array
135 void (GLAPIENTRY *qglLockArraysEXT) (GLint first, GLint count);
136 void (GLAPIENTRY *qglUnlockArraysEXT) (void);
138 // general GL functions
140 void (GLAPIENTRY *qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
142 void (GLAPIENTRY *qglClear)(GLbitfield mask);
144 void (GLAPIENTRY *qglAlphaFunc)(GLenum func, GLclampf ref);
145 void (GLAPIENTRY *qglBlendFunc)(GLenum sfactor, GLenum dfactor);
146 void (GLAPIENTRY *qglCullFace)(GLenum mode);
148 void (GLAPIENTRY *qglDrawBuffer)(GLenum mode);
149 void (GLAPIENTRY *qglReadBuffer)(GLenum mode);
150 void (GLAPIENTRY *qglEnable)(GLenum cap);
151 void (GLAPIENTRY *qglDisable)(GLenum cap);
152 GLboolean (GLAPIENTRY *qglIsEnabled)(GLenum cap);
154 void (GLAPIENTRY *qglEnableClientState)(GLenum cap);
155 void (GLAPIENTRY *qglDisableClientState)(GLenum cap);
157 void (GLAPIENTRY *qglGetBooleanv)(GLenum pname, GLboolean *params);
158 void (GLAPIENTRY *qglGetDoublev)(GLenum pname, GLdouble *params);
159 void (GLAPIENTRY *qglGetFloatv)(GLenum pname, GLfloat *params);
160 void (GLAPIENTRY *qglGetIntegerv)(GLenum pname, GLint *params);
162 GLenum (GLAPIENTRY *qglGetError)(void);
163 const GLubyte* (GLAPIENTRY *qglGetString)(GLenum name);
164 void (GLAPIENTRY *qglFinish)(void);
165 void (GLAPIENTRY *qglFlush)(void);
167 void (GLAPIENTRY *qglClearDepth)(GLclampd depth);
168 void (GLAPIENTRY *qglDepthFunc)(GLenum func);
169 void (GLAPIENTRY *qglDepthMask)(GLboolean flag);
170 void (GLAPIENTRY *qglDepthRange)(GLclampd near_val, GLclampd far_val);
171 void (GLAPIENTRY *qglColorMask)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
173 void (GLAPIENTRY *qglDrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
174 void (GLAPIENTRY *qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
175 void (GLAPIENTRY *qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
176 void (GLAPIENTRY *qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *ptr);
177 void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
178 void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
179 void (GLAPIENTRY *qglArrayElement)(GLint i);
181 void (GLAPIENTRY *qglColor4f)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
182 void (GLAPIENTRY *qglTexCoord1f)(GLfloat s);
183 void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
184 void (GLAPIENTRY *qglTexCoord3f)(GLfloat s, GLfloat t, GLfloat r);
185 void (GLAPIENTRY *qglTexCoord4f)(GLfloat s, GLfloat t, GLfloat r, GLfloat q);
186 void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
187 void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
188 void (GLAPIENTRY *qglBegin)(GLenum mode);
189 void (GLAPIENTRY *qglEnd)(void);
191 void (GLAPIENTRY *qglMatrixMode)(GLenum mode);
192 void (GLAPIENTRY *qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
193 void (GLAPIENTRY *qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
194 void (GLAPIENTRY *qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
195 void (GLAPIENTRY *qglPushMatrix)(void);
196 void (GLAPIENTRY *qglPopMatrix)(void);
197 void (GLAPIENTRY *qglLoadIdentity)(void);
198 void (GLAPIENTRY *qglLoadMatrixd)(const GLdouble *m);
199 void (GLAPIENTRY *qglLoadMatrixf)(const GLfloat *m);
200 void (GLAPIENTRY *qglMultMatrixd)(const GLdouble *m);
201 void (GLAPIENTRY *qglMultMatrixf)(const GLfloat *m);
202 void (GLAPIENTRY *qglRotated)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
203 void (GLAPIENTRY *qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
204 void (GLAPIENTRY *qglScaled)(GLdouble x, GLdouble y, GLdouble z);
205 void (GLAPIENTRY *qglScalef)(GLfloat x, GLfloat y, GLfloat z);
206 void (GLAPIENTRY *qglTranslated)(GLdouble x, GLdouble y, GLdouble z);
207 void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
209 void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
211 void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
212 void (GLAPIENTRY *qglStencilMask)(GLuint mask);
213 void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
214 void (GLAPIENTRY *qglClearStencil)(GLint s);
216 void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
217 void (GLAPIENTRY *qglTexEnvfv)(GLenum target, GLenum pname, const GLfloat *params);
218 void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
219 void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
220 void (GLAPIENTRY *qglTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
221 void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
223 void (GLAPIENTRY *qglGenTextures)(GLsizei n, GLuint *textures);
224 void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
225 void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
226 //void (GLAPIENTRY *qglPrioritizeTextures)(GLsizei n, const GLuint *textures, const GLclampf *priorities);
227 //GLboolean (GLAPIENTRY *qglAreTexturesResident)(GLsizei n, const GLuint *textures, GLboolean *residences);
228 GLboolean (GLAPIENTRY *qglIsTexture)(GLuint texture);
229 void (GLAPIENTRY *qglPixelStoref)(GLenum pname, GLfloat param);
230 void (GLAPIENTRY *qglPixelStorei)(GLenum pname, GLint param);
232 void (GLAPIENTRY *qglTexImage1D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
233 void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
234 void (GLAPIENTRY *qglTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels);
235 void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
236 void (GLAPIENTRY *qglCopyTexImage1D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
237 void (GLAPIENTRY *qglCopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
238 void (GLAPIENTRY *qglCopyTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
239 void (GLAPIENTRY *qglCopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
242 void (GLAPIENTRY *qglDrawRangeElementsEXT)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
244 //void (GLAPIENTRY *qglColorTableEXT)(int, int, int, int, int, const void *);
246 void (GLAPIENTRY *qglTexImage3D)(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
247 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);
248 void (GLAPIENTRY *qglCopyTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
250 void (GLAPIENTRY *qglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
252 void (GLAPIENTRY *qglPolygonOffset)(GLfloat factor, GLfloat units);
253 void (GLAPIENTRY *qglPolygonMode)(GLenum face, GLenum mode);
254 void (GLAPIENTRY *qglPolygonStipple)(const GLubyte *mask);
256 //[515]: added on 29.07.2005
257 void (GLAPIENTRY *qglLineWidth)(GLfloat width);
258 void (GLAPIENTRY *qglPointSize)(GLfloat size);
260 void (GLAPIENTRY *qglBlendEquationEXT)(GLenum);
262 void (GLAPIENTRY *qglStencilOpSeparate)(GLenum, GLenum, GLenum, GLenum);
263 void (GLAPIENTRY *qglStencilFuncSeparate)(GLenum, GLenum, GLint, GLuint);
264 void (GLAPIENTRY *qglActiveStencilFaceEXT)(GLenum);
266 void (GLAPIENTRY *qglDeleteObjectARB)(GLhandleARB obj);
267 GLhandleARB (GLAPIENTRY *qglGetHandleARB)(GLenum pname);
268 void (GLAPIENTRY *qglDetachObjectARB)(GLhandleARB containerObj, GLhandleARB attachedObj);
269 GLhandleARB (GLAPIENTRY *qglCreateShaderObjectARB)(GLenum shaderType);
270 void (GLAPIENTRY *qglShaderSourceARB)(GLhandleARB shaderObj, GLsizei count, const GLcharARB **string, const GLint *length);
271 void (GLAPIENTRY *qglCompileShaderARB)(GLhandleARB shaderObj);
272 GLhandleARB (GLAPIENTRY *qglCreateProgramObjectARB)(void);
273 void (GLAPIENTRY *qglAttachObjectARB)(GLhandleARB containerObj, GLhandleARB obj);
274 void (GLAPIENTRY *qglLinkProgramARB)(GLhandleARB programObj);
275 void (GLAPIENTRY *qglUseProgramObjectARB)(GLhandleARB programObj);
276 void (GLAPIENTRY *qglValidateProgramARB)(GLhandleARB programObj);
277 void (GLAPIENTRY *qglUniform1fARB)(GLint location, GLfloat v0);
278 void (GLAPIENTRY *qglUniform2fARB)(GLint location, GLfloat v0, GLfloat v1);
279 void (GLAPIENTRY *qglUniform3fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
280 void (GLAPIENTRY *qglUniform4fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
281 void (GLAPIENTRY *qglUniform1iARB)(GLint location, GLint v0);
282 void (GLAPIENTRY *qglUniform2iARB)(GLint location, GLint v0, GLint v1);
283 void (GLAPIENTRY *qglUniform3iARB)(GLint location, GLint v0, GLint v1, GLint v2);
284 void (GLAPIENTRY *qglUniform4iARB)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
285 void (GLAPIENTRY *qglUniform1fvARB)(GLint location, GLsizei count, const GLfloat *value);
286 void (GLAPIENTRY *qglUniform2fvARB)(GLint location, GLsizei count, const GLfloat *value);
287 void (GLAPIENTRY *qglUniform3fvARB)(GLint location, GLsizei count, const GLfloat *value);
288 void (GLAPIENTRY *qglUniform4fvARB)(GLint location, GLsizei count, const GLfloat *value);
289 void (GLAPIENTRY *qglUniform1ivARB)(GLint location, GLsizei count, const GLint *value);
290 void (GLAPIENTRY *qglUniform2ivARB)(GLint location, GLsizei count, const GLint *value);
291 void (GLAPIENTRY *qglUniform3ivARB)(GLint location, GLsizei count, const GLint *value);
292 void (GLAPIENTRY *qglUniform4ivARB)(GLint location, GLsizei count, const GLint *value);
293 void (GLAPIENTRY *qglUniformMatrix2fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
294 void (GLAPIENTRY *qglUniformMatrix3fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
295 void (GLAPIENTRY *qglUniformMatrix4fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
296 void (GLAPIENTRY *qglGetObjectParameterfvARB)(GLhandleARB obj, GLenum pname, GLfloat *params);
297 void (GLAPIENTRY *qglGetObjectParameterivARB)(GLhandleARB obj, GLenum pname, GLint *params);
298 void (GLAPIENTRY *qglGetInfoLogARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *infoLog);
299 void (GLAPIENTRY *qglGetAttachedObjectsARB)(GLhandleARB containerObj, GLsizei maxCount, GLsizei *count, GLhandleARB *obj);
300 GLint (GLAPIENTRY *qglGetUniformLocationARB)(GLhandleARB programObj, const GLcharARB *name);
301 void (GLAPIENTRY *qglGetActiveUniformARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
302 void (GLAPIENTRY *qglGetUniformfvARB)(GLhandleARB programObj, GLint location, GLfloat *params);
303 void (GLAPIENTRY *qglGetUniformivARB)(GLhandleARB programObj, GLint location, GLint *params);
304 void (GLAPIENTRY *qglGetShaderSourceARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *source);
306 //void (GLAPIENTRY *qglVertexAttrib1fARB)(GLuint index, GLfloat v0);
307 //void (GLAPIENTRY *qglVertexAttrib1sARB)(GLuint index, GLshort v0);
308 //void (GLAPIENTRY *qglVertexAttrib1dARB)(GLuint index, GLdouble v0);
309 //void (GLAPIENTRY *qglVertexAttrib2fARB)(GLuint index, GLfloat v0, GLfloat v1);
310 //void (GLAPIENTRY *qglVertexAttrib2sARB)(GLuint index, GLshort v0, GLshort v1);
311 //void (GLAPIENTRY *qglVertexAttrib2dARB)(GLuint index, GLdouble v0, GLdouble v1);
312 //void (GLAPIENTRY *qglVertexAttrib3fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2);
313 //void (GLAPIENTRY *qglVertexAttrib3sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2);
314 //void (GLAPIENTRY *qglVertexAttrib3dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2);
315 //void (GLAPIENTRY *qglVertexAttrib4fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
316 //void (GLAPIENTRY *qglVertexAttrib4sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2, GLshort v3);
317 //void (GLAPIENTRY *qglVertexAttrib4dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2, GLdouble v3);
318 //void (GLAPIENTRY *qglVertexAttrib4NubARB)(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
319 //void (GLAPIENTRY *qglVertexAttrib1fvARB)(GLuint index, const GLfloat *v);
320 //void (GLAPIENTRY *qglVertexAttrib1svARB)(GLuint index, const GLshort *v);
321 //void (GLAPIENTRY *qglVertexAttrib1dvARB)(GLuint index, const GLdouble *v);
322 //void (GLAPIENTRY *qglVertexAttrib2fvARB)(GLuint index, const GLfloat *v);
323 //void (GLAPIENTRY *qglVertexAttrib2svARB)(GLuint index, const GLshort *v);
324 //void (GLAPIENTRY *qglVertexAttrib2dvARB)(GLuint index, const GLdouble *v);
325 //void (GLAPIENTRY *qglVertexAttrib3fvARB)(GLuint index, const GLfloat *v);
326 //void (GLAPIENTRY *qglVertexAttrib3svARB)(GLuint index, const GLshort *v);
327 //void (GLAPIENTRY *qglVertexAttrib3dvARB)(GLuint index, const GLdouble *v);
328 //void (GLAPIENTRY *qglVertexAttrib4fvARB)(GLuint index, const GLfloat *v);
329 //void (GLAPIENTRY *qglVertexAttrib4svARB)(GLuint index, const GLshort *v);
330 //void (GLAPIENTRY *qglVertexAttrib4dvARB)(GLuint index, const GLdouble *v);
331 //void (GLAPIENTRY *qglVertexAttrib4ivARB)(GLuint index, const GLint *v);
332 //void (GLAPIENTRY *qglVertexAttrib4bvARB)(GLuint index, const GLbyte *v);
333 //void (GLAPIENTRY *qglVertexAttrib4ubvARB)(GLuint index, const GLubyte *v);
334 //void (GLAPIENTRY *qglVertexAttrib4usvARB)(GLuint index, const GLushort *v);
335 //void (GLAPIENTRY *qglVertexAttrib4uivARB)(GLuint index, const GLuint *v);
336 //void (GLAPIENTRY *qglVertexAttrib4NbvARB)(GLuint index, const GLbyte *v);
337 //void (GLAPIENTRY *qglVertexAttrib4NsvARB)(GLuint index, const GLshort *v);
338 //void (GLAPIENTRY *qglVertexAttrib4NivARB)(GLuint index, const GLint *v);
339 //void (GLAPIENTRY *qglVertexAttrib4NubvARB)(GLuint index, const GLubyte *v);
340 //void (GLAPIENTRY *qglVertexAttrib4NusvARB)(GLuint index, const GLushort *v);
341 //void (GLAPIENTRY *qglVertexAttrib4NuivARB)(GLuint index, const GLuint *v);
342 void (GLAPIENTRY *qglVertexAttribPointerARB)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
343 void (GLAPIENTRY *qglEnableVertexAttribArrayARB)(GLuint index);
344 void (GLAPIENTRY *qglDisableVertexAttribArrayARB)(GLuint index);
345 void (GLAPIENTRY *qglBindAttribLocationARB)(GLhandleARB programObj, GLuint index, const GLcharARB *name);
346 void (GLAPIENTRY *qglGetActiveAttribARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
347 GLint (GLAPIENTRY *qglGetAttribLocationARB)(GLhandleARB programObj, const GLcharARB *name);
348 //void (GLAPIENTRY *qglGetVertexAttribdvARB)(GLuint index, GLenum pname, GLdouble *params);
349 //void (GLAPIENTRY *qglGetVertexAttribfvARB)(GLuint index, GLenum pname, GLfloat *params);
350 //void (GLAPIENTRY *qglGetVertexAttribivARB)(GLuint index, GLenum pname, GLint *params);
351 //void (GLAPIENTRY *qglGetVertexAttribPointervARB)(GLuint index, GLenum pname, GLvoid **pointer);
353 //GL_ARB_vertex_buffer_object
354 void (GLAPIENTRY *qglBindBufferARB) (GLenum target, GLuint buffer);
355 void (GLAPIENTRY *qglDeleteBuffersARB) (GLsizei n, const GLuint *buffers);
356 void (GLAPIENTRY *qglGenBuffersARB) (GLsizei n, GLuint *buffers);
357 GLboolean (GLAPIENTRY *qglIsBufferARB) (GLuint buffer);
358 GLvoid* (GLAPIENTRY *qglMapBufferARB) (GLenum target, GLenum access);
359 GLboolean (GLAPIENTRY *qglUnmapBufferARB) (GLenum target);
360 void (GLAPIENTRY *qglBufferDataARB) (GLenum target, GLsizeiptrARB size, const GLvoid *data, GLenum usage);
361 void (GLAPIENTRY *qglBufferSubDataARB) (GLenum target, GLintptrARB offset, GLsizeiptrARB size, const GLvoid *data);
363 int GL_CheckExtension(const char *name, const dllfunction_t *funcs, const char *disableparm, int silent)
366 const dllfunction_t *func;
368 Con_Printf("checking for %s... ", name);
370 for (func = funcs;func && func->name;func++)
371 *func->funcvariable = NULL;
373 if (disableparm && (COM_CheckParm(disableparm) || COM_CheckParm("-safe")))
375 Con_Print("disabled by commandline\n");
379 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)))
381 for (func = funcs;func && func->name != NULL;func++)
383 // functions are cleared before all the extensions are evaluated
384 if (!(*func->funcvariable = (void *) GL_GetProcAddress(func->name)))
387 Con_Printf("OpenGL extension \"%s\" is missing function \"%s\" - broken driver!\n", name, func->name);
391 // delay the return so it prints all missing functions
394 Con_Print("enabled\n");
399 Con_Print("not detected\n");
404 static dllfunction_t opengl110funcs[] =
406 {"glClearColor", (void **) &qglClearColor},
407 {"glClear", (void **) &qglClear},
408 {"glAlphaFunc", (void **) &qglAlphaFunc},
409 {"glBlendFunc", (void **) &qglBlendFunc},
410 {"glCullFace", (void **) &qglCullFace},
411 {"glDrawBuffer", (void **) &qglDrawBuffer},
412 {"glReadBuffer", (void **) &qglReadBuffer},
413 {"glEnable", (void **) &qglEnable},
414 {"glDisable", (void **) &qglDisable},
415 {"glIsEnabled", (void **) &qglIsEnabled},
416 {"glEnableClientState", (void **) &qglEnableClientState},
417 {"glDisableClientState", (void **) &qglDisableClientState},
418 {"glGetBooleanv", (void **) &qglGetBooleanv},
419 {"glGetDoublev", (void **) &qglGetDoublev},
420 {"glGetFloatv", (void **) &qglGetFloatv},
421 {"glGetIntegerv", (void **) &qglGetIntegerv},
422 {"glGetError", (void **) &qglGetError},
423 {"glGetString", (void **) &qglGetString},
424 {"glFinish", (void **) &qglFinish},
425 {"glFlush", (void **) &qglFlush},
426 {"glClearDepth", (void **) &qglClearDepth},
427 {"glDepthFunc", (void **) &qglDepthFunc},
428 {"glDepthMask", (void **) &qglDepthMask},
429 {"glDepthRange", (void **) &qglDepthRange},
430 {"glDrawElements", (void **) &qglDrawElements},
431 {"glColorMask", (void **) &qglColorMask},
432 {"glVertexPointer", (void **) &qglVertexPointer},
433 {"glNormalPointer", (void **) &qglNormalPointer},
434 {"glColorPointer", (void **) &qglColorPointer},
435 {"glTexCoordPointer", (void **) &qglTexCoordPointer},
436 {"glArrayElement", (void **) &qglArrayElement},
437 {"glColor4f", (void **) &qglColor4f},
438 {"glTexCoord1f", (void **) &qglTexCoord1f},
439 {"glTexCoord2f", (void **) &qglTexCoord2f},
440 {"glTexCoord3f", (void **) &qglTexCoord3f},
441 {"glTexCoord4f", (void **) &qglTexCoord4f},
442 {"glVertex2f", (void **) &qglVertex2f},
443 {"glVertex3f", (void **) &qglVertex3f},
444 {"glBegin", (void **) &qglBegin},
445 {"glEnd", (void **) &qglEnd},
446 //[515]: added on 29.07.2005
447 {"glLineWidth", (void**) &qglLineWidth},
448 {"glPointSize", (void**) &qglPointSize},
450 {"glMatrixMode", (void **) &qglMatrixMode},
451 {"glOrtho", (void **) &qglOrtho},
452 {"glFrustum", (void **) &qglFrustum},
453 {"glViewport", (void **) &qglViewport},
454 {"glPushMatrix", (void **) &qglPushMatrix},
455 {"glPopMatrix", (void **) &qglPopMatrix},
456 {"glLoadIdentity", (void **) &qglLoadIdentity},
457 {"glLoadMatrixd", (void **) &qglLoadMatrixd},
458 {"glLoadMatrixf", (void **) &qglLoadMatrixf},
459 {"glMultMatrixd", (void **) &qglMultMatrixd},
460 {"glMultMatrixf", (void **) &qglMultMatrixf},
461 {"glRotated", (void **) &qglRotated},
462 {"glRotatef", (void **) &qglRotatef},
463 {"glScaled", (void **) &qglScaled},
464 {"glScalef", (void **) &qglScalef},
465 {"glTranslated", (void **) &qglTranslated},
466 {"glTranslatef", (void **) &qglTranslatef},
467 {"glReadPixels", (void **) &qglReadPixels},
468 {"glStencilFunc", (void **) &qglStencilFunc},
469 {"glStencilMask", (void **) &qglStencilMask},
470 {"glStencilOp", (void **) &qglStencilOp},
471 {"glClearStencil", (void **) &qglClearStencil},
472 {"glTexEnvf", (void **) &qglTexEnvf},
473 {"glTexEnvfv", (void **) &qglTexEnvfv},
474 {"glTexEnvi", (void **) &qglTexEnvi},
475 {"glTexParameterf", (void **) &qglTexParameterf},
476 {"glTexParameterfv", (void **) &qglTexParameterfv},
477 {"glTexParameteri", (void **) &qglTexParameteri},
478 {"glPixelStoref", (void **) &qglPixelStoref},
479 {"glPixelStorei", (void **) &qglPixelStorei},
480 {"glGenTextures", (void **) &qglGenTextures},
481 {"glDeleteTextures", (void **) &qglDeleteTextures},
482 {"glBindTexture", (void **) &qglBindTexture},
483 // {"glPrioritizeTextures", (void **) &qglPrioritizeTextures},
484 // {"glAreTexturesResident", (void **) &qglAreTexturesResident},
485 {"glIsTexture", (void **) &qglIsTexture},
486 {"glTexImage1D", (void **) &qglTexImage1D},
487 {"glTexImage2D", (void **) &qglTexImage2D},
488 {"glTexSubImage1D", (void **) &qglTexSubImage1D},
489 {"glTexSubImage2D", (void **) &qglTexSubImage2D},
490 {"glCopyTexImage1D", (void **) &qglCopyTexImage1D},
491 {"glCopyTexImage2D", (void **) &qglCopyTexImage2D},
492 {"glCopyTexSubImage1D", (void **) &qglCopyTexSubImage1D},
493 {"glCopyTexSubImage2D", (void **) &qglCopyTexSubImage2D},
494 {"glScissor", (void **) &qglScissor},
495 {"glPolygonOffset", (void **) &qglPolygonOffset},
496 {"glPolygonMode", (void **) &qglPolygonMode},
497 {"glPolygonStipple", (void **) &qglPolygonStipple},
501 static dllfunction_t drawrangeelementsfuncs[] =
503 {"glDrawRangeElements", (void **) &qglDrawRangeElements},
507 static dllfunction_t drawrangeelementsextfuncs[] =
509 {"glDrawRangeElementsEXT", (void **) &qglDrawRangeElementsEXT},
513 static dllfunction_t multitexturefuncs[] =
515 {"glMultiTexCoord1fARB", (void **) &qglMultiTexCoord1f},
516 {"glMultiTexCoord2fARB", (void **) &qglMultiTexCoord2f},
517 {"glMultiTexCoord3fARB", (void **) &qglMultiTexCoord3f},
518 {"glMultiTexCoord4fARB", (void **) &qglMultiTexCoord4f},
519 {"glActiveTextureARB", (void **) &qglActiveTexture},
520 {"glClientActiveTextureARB", (void **) &qglClientActiveTexture},
524 static dllfunction_t compiledvertexarrayfuncs[] =
526 {"glLockArraysEXT", (void **) &qglLockArraysEXT},
527 {"glUnlockArraysEXT", (void **) &qglUnlockArraysEXT},
531 static dllfunction_t texture3dextfuncs[] =
533 {"glTexImage3DEXT", (void **) &qglTexImage3D},
534 {"glTexSubImage3DEXT", (void **) &qglTexSubImage3D},
535 {"glCopyTexSubImage3DEXT", (void **) &qglCopyTexSubImage3D},
539 static dllfunction_t atiseparatestencilfuncs[] =
541 {"glStencilOpSeparateATI", (void **) &qglStencilOpSeparate},
542 {"glStencilFuncSeparateATI", (void **) &qglStencilFuncSeparate},
546 static dllfunction_t gl2separatestencilfuncs[] =
548 {"glStencilOpSeparate", (void **) &qglStencilOpSeparate},
549 {"glStencilFuncSeparate", (void **) &qglStencilFuncSeparate},
553 static dllfunction_t stenciltwosidefuncs[] =
555 {"glActiveStencilFaceEXT", (void **) &qglActiveStencilFaceEXT},
559 static dllfunction_t blendequationfuncs[] =
561 {"glBlendEquationEXT", (void **) &qglBlendEquationEXT},
565 static dllfunction_t shaderobjectsfuncs[] =
567 {"glDeleteObjectARB", (void **) &qglDeleteObjectARB},
568 {"glGetHandleARB", (void **) &qglGetHandleARB},
569 {"glDetachObjectARB", (void **) &qglDetachObjectARB},
570 {"glCreateShaderObjectARB", (void **) &qglCreateShaderObjectARB},
571 {"glShaderSourceARB", (void **) &qglShaderSourceARB},
572 {"glCompileShaderARB", (void **) &qglCompileShaderARB},
573 {"glCreateProgramObjectARB", (void **) &qglCreateProgramObjectARB},
574 {"glAttachObjectARB", (void **) &qglAttachObjectARB},
575 {"glLinkProgramARB", (void **) &qglLinkProgramARB},
576 {"glUseProgramObjectARB", (void **) &qglUseProgramObjectARB},
577 {"glValidateProgramARB", (void **) &qglValidateProgramARB},
578 {"glUniform1fARB", (void **) &qglUniform1fARB},
579 {"glUniform2fARB", (void **) &qglUniform2fARB},
580 {"glUniform3fARB", (void **) &qglUniform3fARB},
581 {"glUniform4fARB", (void **) &qglUniform4fARB},
582 {"glUniform1iARB", (void **) &qglUniform1iARB},
583 {"glUniform2iARB", (void **) &qglUniform2iARB},
584 {"glUniform3iARB", (void **) &qglUniform3iARB},
585 {"glUniform4iARB", (void **) &qglUniform4iARB},
586 {"glUniform1fvARB", (void **) &qglUniform1fvARB},
587 {"glUniform2fvARB", (void **) &qglUniform2fvARB},
588 {"glUniform3fvARB", (void **) &qglUniform3fvARB},
589 {"glUniform4fvARB", (void **) &qglUniform4fvARB},
590 {"glUniform1ivARB", (void **) &qglUniform1ivARB},
591 {"glUniform2ivARB", (void **) &qglUniform2ivARB},
592 {"glUniform3ivARB", (void **) &qglUniform3ivARB},
593 {"glUniform4ivARB", (void **) &qglUniform4ivARB},
594 {"glUniformMatrix2fvARB", (void **) &qglUniformMatrix2fvARB},
595 {"glUniformMatrix3fvARB", (void **) &qglUniformMatrix3fvARB},
596 {"glUniformMatrix4fvARB", (void **) &qglUniformMatrix4fvARB},
597 {"glGetObjectParameterfvARB", (void **) &qglGetObjectParameterfvARB},
598 {"glGetObjectParameterivARB", (void **) &qglGetObjectParameterivARB},
599 {"glGetInfoLogARB", (void **) &qglGetInfoLogARB},
600 {"glGetAttachedObjectsARB", (void **) &qglGetAttachedObjectsARB},
601 {"glGetUniformLocationARB", (void **) &qglGetUniformLocationARB},
602 {"glGetActiveUniformARB", (void **) &qglGetActiveUniformARB},
603 {"glGetUniformfvARB", (void **) &qglGetUniformfvARB},
604 {"glGetUniformivARB", (void **) &qglGetUniformivARB},
605 {"glGetShaderSourceARB", (void **) &qglGetShaderSourceARB},
609 static dllfunction_t vertexshaderfuncs[] =
611 // {"glVertexAttrib1fARB", (void **) &qglVertexAttrib1fARB},
612 // {"glVertexAttrib1sARB", (void **) &qglVertexAttrib1sARB},
613 // {"glVertexAttrib1dARB", (void **) &qglVertexAttrib1dARB},
614 // {"glVertexAttrib2fARB", (void **) &qglVertexAttrib2fARB},
615 // {"glVertexAttrib2sARB", (void **) &qglVertexAttrib2sARB},
616 // {"glVertexAttrib2dARB", (void **) &qglVertexAttrib2dARB},
617 // {"glVertexAttrib3fARB", (void **) &qglVertexAttrib3fARB},
618 // {"glVertexAttrib3sARB", (void **) &qglVertexAttrib3sARB},
619 // {"glVertexAttrib3dARB", (void **) &qglVertexAttrib3dARB},
620 // {"glVertexAttrib4fARB", (void **) &qglVertexAttrib4fARB},
621 // {"glVertexAttrib4sARB", (void **) &qglVertexAttrib4sARB},
622 // {"glVertexAttrib4dARB", (void **) &qglVertexAttrib4dARB},
623 // {"glVertexAttrib4NubARB", (void **) &qglVertexAttrib4NubARB},
624 // {"glVertexAttrib1fvARB", (void **) &qglVertexAttrib1fvARB},
625 // {"glVertexAttrib1svARB", (void **) &qglVertexAttrib1svARB},
626 // {"glVertexAttrib1dvARB", (void **) &qglVertexAttrib1dvARB},
627 // {"glVertexAttrib2fvARB", (void **) &qglVertexAttrib1fvARB},
628 // {"glVertexAttrib2svARB", (void **) &qglVertexAttrib1svARB},
629 // {"glVertexAttrib2dvARB", (void **) &qglVertexAttrib1dvARB},
630 // {"glVertexAttrib3fvARB", (void **) &qglVertexAttrib1fvARB},
631 // {"glVertexAttrib3svARB", (void **) &qglVertexAttrib1svARB},
632 // {"glVertexAttrib3dvARB", (void **) &qglVertexAttrib1dvARB},
633 // {"glVertexAttrib4fvARB", (void **) &qglVertexAttrib1fvARB},
634 // {"glVertexAttrib4svARB", (void **) &qglVertexAttrib1svARB},
635 // {"glVertexAttrib4dvARB", (void **) &qglVertexAttrib1dvARB},
636 // {"glVertexAttrib4ivARB", (void **) &qglVertexAttrib1ivARB},
637 // {"glVertexAttrib4bvARB", (void **) &qglVertexAttrib1bvARB},
638 // {"glVertexAttrib4ubvARB", (void **) &qglVertexAttrib1ubvARB},
639 // {"glVertexAttrib4usvARB", (void **) &qglVertexAttrib1usvARB},
640 // {"glVertexAttrib4uivARB", (void **) &qglVertexAttrib1uivARB},
641 // {"glVertexAttrib4NbvARB", (void **) &qglVertexAttrib1NbvARB},
642 // {"glVertexAttrib4NsvARB", (void **) &qglVertexAttrib1NsvARB},
643 // {"glVertexAttrib4NivARB", (void **) &qglVertexAttrib1NivARB},
644 // {"glVertexAttrib4NubvARB", (void **) &qglVertexAttrib1NubvARB},
645 // {"glVertexAttrib4NusvARB", (void **) &qglVertexAttrib1NusvARB},
646 // {"glVertexAttrib4NuivARB", (void **) &qglVertexAttrib1NuivARB},
647 {"glVertexAttribPointerARB", (void **) &qglVertexAttribPointerARB},
648 {"glEnableVertexAttribArrayARB", (void **) &qglEnableVertexAttribArrayARB},
649 {"glDisableVertexAttribArrayARB", (void **) &qglDisableVertexAttribArrayARB},
650 {"glBindAttribLocationARB", (void **) &qglBindAttribLocationARB},
651 {"glGetActiveAttribARB", (void **) &qglGetActiveAttribARB},
652 {"glGetAttribLocationARB", (void **) &qglGetAttribLocationARB},
653 // {"glGetVertexAttribdvARB", (void **) &qglGetVertexAttribdvARB},
654 // {"glGetVertexAttribfvARB", (void **) &qglGetVertexAttribfvARB},
655 // {"glGetVertexAttribivARB", (void **) &qglGetVertexAttribivARB},
656 // {"glGetVertexAttribPointervARB", (void **) &qglGetVertexAttribPointervARB},
660 static dllfunction_t vbofuncs[] =
662 {"glBindBufferARB" , (void **) &qglBindBufferARB},
663 {"glDeleteBuffersARB" , (void **) &qglDeleteBuffersARB},
664 {"glGenBuffersARB" , (void **) &qglGenBuffersARB},
665 {"glIsBufferARB" , (void **) &qglIsBufferARB},
666 {"glMapBufferARB" , (void **) &qglMapBufferARB},
667 {"glUnmapBufferARB" , (void **) &qglUnmapBufferARB},
668 {"glBufferDataARB" , (void **) &qglBufferDataARB},
669 {"glBufferSubDataARB" , (void **) &qglBufferSubDataARB},
673 void VID_CheckExtensions(void)
675 gl_stencil = vid_bitsperpixel.integer == 32;
677 // reset all the gl extension variables here
678 // this should match the declarations
679 gl_max_texture_size = 0;
680 gl_max_3d_texture_size = 0;
681 gl_max_cube_map_texture_size = 0;
683 gl_combine_extension = false;
684 gl_supportslockarrays = false;
685 gl_texture3d = false;
686 gl_texturecubemap = false;
687 gl_support_arb_texture_non_power_of_two = false;
689 gl_support_clamptoedge = false;
690 gl_support_anisotropy = false;
691 gl_max_anisotropy = 1;
692 gl_support_separatestencil = false;
693 gl_support_stenciltwoside = false;
694 gl_support_ext_blend_minmax = false;
695 gl_support_ext_blend_subtract = false;
696 gl_support_shader_objects = false;
697 gl_support_shading_language_100 = false;
698 gl_support_vertex_shader = false;
699 gl_support_fragment_shader = false;
700 gl_support_arb_vertex_buffer_object = false;
702 if (!GL_CheckExtension("OpenGL 1.1.0", opengl110funcs, NULL, false))
703 Sys_Error("OpenGL 1.1.0 functions not found");
705 Con_Printf("GL_VENDOR: %s\n", gl_vendor);
706 Con_Printf("GL_RENDERER: %s\n", gl_renderer);
707 Con_Printf("GL_VERSION: %s\n", gl_version);
708 Con_Printf("GL_EXTENSIONS: %s\n", gl_extensions);
709 Con_Printf("%s_EXTENSIONS: %s\n", gl_platform, gl_platformextensions);
712 qglGetIntegerv(GL_MAX_TEXTURE_SIZE, &gl_max_texture_size);
714 Con_Print("Checking OpenGL extensions...\n");
716 // COMMANDLINEOPTION: GL: -nodrawrangeelements disables GL_EXT_draw_range_elements (renders faster)
717 if (!GL_CheckExtension("glDrawRangeElements", drawrangeelementsfuncs, "-nodrawrangeelements", true))
718 GL_CheckExtension("GL_EXT_draw_range_elements", drawrangeelementsextfuncs, "-nodrawrangeelements", false);
720 // COMMANDLINEOPTION: GL: -nomtex disables GL_ARB_multitexture (required for faster map rendering)
721 if (GL_CheckExtension("GL_ARB_multitexture", multitexturefuncs, "-nomtex", false))
723 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &gl_textureunits);
724 // COMMANDLINEOPTION: GL: -nocombine disables GL_ARB_texture_env_combine or GL_EXT_texture_env_combine (required for bumpmapping and faster map rendering)
725 gl_combine_extension = GL_CheckExtension("GL_ARB_texture_env_combine", NULL, "-nocombine", false) || GL_CheckExtension("GL_EXT_texture_env_combine", NULL, "-nocombine", false);
726 // COMMANDLINEOPTION: GL: -nodot3 disables GL_ARB_texture_env_dot3 (required for bumpmapping)
727 if (gl_combine_extension)
728 gl_dot3arb = GL_CheckExtension("GL_ARB_texture_env_dot3", NULL, "-nodot3", false);
731 // COMMANDLINEOPTION: GL: -notexture3d disables GL_EXT_texture3D (required for spherical lights, otherwise they render as a column)
732 if ((gl_texture3d = GL_CheckExtension("GL_EXT_texture3D", texture3dextfuncs, "-notexture3d", false)))
734 qglGetIntegerv(GL_MAX_3D_TEXTURE_SIZE, &gl_max_3d_texture_size);
735 if (gl_max_3d_texture_size < 32)
737 gl_texture3d = false;
738 Con_Printf("GL_EXT_texture3D reported bogus GL_MAX_3D_TEXTURE_SIZE, disabled\n");
741 // COMMANDLINEOPTION: GL: -nocubemap disables GL_ARB_texture_cube_map (required for bumpmapping)
742 if ((gl_texturecubemap = GL_CheckExtension("GL_ARB_texture_cube_map", NULL, "-nocubemap", false)))
743 qglGetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, &gl_max_cube_map_texture_size);
744 gl_support_arb_texture_non_power_of_two = GL_CheckExtension("GL_ARB_texture_non_power_of_two", NULL, "-notexturenonpoweroftwo", false);
745 // COMMANDLINEOPTION: GL: -nocva disables GL_EXT_compiled_vertex_array (renders faster)
746 gl_supportslockarrays = GL_CheckExtension("GL_EXT_compiled_vertex_array", compiledvertexarrayfuncs, "-nocva", false);
747 // 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)
748 gl_support_clamptoedge = GL_CheckExtension("GL_EXT_texture_edge_clamp", NULL, "-noedgeclamp", false) || GL_CheckExtension("GL_SGIS_texture_edge_clamp", NULL, "-noedgeclamp", false);
750 // COMMANDLINEOPTION: GL: -noanisotropy disables GL_EXT_texture_filter_anisotropic (allows higher quality texturing)
751 if ((gl_support_anisotropy = GL_CheckExtension("GL_EXT_texture_filter_anisotropic", NULL, "-noanisotropy", false)))
752 qglGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &gl_max_anisotropy);
754 gl_support_ext_blend_minmax = GL_CheckExtension("GL_EXT_blend_minmax", blendequationfuncs, "-noblendminmax", false);
755 gl_support_ext_blend_subtract = GL_CheckExtension("GL_EXT_blend_subtract", blendequationfuncs, "-noblendsubtract", false);
757 // COMMANDLINEOPTION: GL: -noseparatestencil disables use of OpenGL2.0 glStencilOpSeparate and GL_ATI_separate_stencil extensions (which accelerate shadow rendering)
758 if (!(gl_support_separatestencil = GL_CheckExtension("glStencilOpSeparate", gl2separatestencilfuncs, "-noseparatestencil", false)))
759 gl_support_separatestencil = GL_CheckExtension("GL_ATI_separate_stencil", atiseparatestencilfuncs, "-noseparatestencil", false);
760 // COMMANDLINEOPTION: GL: -nostenciltwoside disables GL_EXT_stencil_two_side (which accelerate shadow rendering)
761 gl_support_stenciltwoside = GL_CheckExtension("GL_EXT_stencil_two_side", stenciltwosidefuncs, "-nostenciltwoside", false);
763 // COMMANDLINEOPTION: GL: -novbo disables GL_ARB_vertex_buffer_object (which accelerates rendering)
764 gl_support_arb_vertex_buffer_object = GL_CheckExtension("GL_ARB_vertex_buffer_object", vbofuncs, "-novbo", false);
766 // we don't care if it's an extension or not, they are identical functions, so keep it simple in the rendering code
767 if (qglDrawRangeElements == NULL)
768 qglDrawRangeElements = qglDrawRangeElementsEXT;
770 // COMMANDLINEOPTION: GL: -noshaderobjects disables GL_ARB_shader_objects (required for vertex shader and fragment shader)
771 // COMMANDLINEOPTION: GL: -noshadinglanguage100 disables GL_ARB_shading_language_100 (required for vertex shader and fragment shader)
772 // COMMANDLINEOPTION: GL: -novertexshader disables GL_ARB_vertex_shader (allows vertex shader effects)
773 // COMMANDLINEOPTION: GL: -nofragmentshader disables GL_ARB_fragment_shader (allows pixel shader effects, can improve per pixel lighting performance and capabilities)
774 if ((gl_support_shader_objects = GL_CheckExtension("GL_ARB_shader_objects", shaderobjectsfuncs, "-noshaderobjects", false)))
775 if ((gl_support_shading_language_100 = GL_CheckExtension("GL_ARB_shading_language_100", NULL, "-noshadinglanguage100", false)))
776 if ((gl_support_vertex_shader = GL_CheckExtension("GL_ARB_vertex_shader", vertexshaderfuncs, "-novertexshader", false)))
777 gl_support_fragment_shader = GL_CheckExtension("GL_ARB_fragment_shader", NULL, "-nofragmentshader", false);
781 void Force_CenterView_f (void)
783 cl.viewangles[PITCH] = 0;
786 static int gamma_forcenextframe = false;
787 static float cachegamma, cachebrightness, cachecontrast, cacheblack[3], cachegrey[3], cachewhite[3];
788 static int cachecolorenable, cachehwgamma;
789 void VID_UpdateGamma(qboolean force, int rampsize)
795 // LordHavoc: don't mess with gamma tables if running dedicated
796 if (cls.state == ca_dedicated)
799 wantgamma = (vid_activewindow ? v_hwgamma.integer : 0);
800 #define BOUNDCVAR(cvar, m1, m2) c = &(cvar);f = bound(m1, c->value, m2);if (c->value != f) Cvar_SetValueQuick(c, f);
801 BOUNDCVAR(v_gamma, 0.1, 5);
802 BOUNDCVAR(v_contrast, 1, 5);
803 BOUNDCVAR(v_brightness, 0, 0.8);
804 BOUNDCVAR(v_color_black_r, 0, 0.8);
805 BOUNDCVAR(v_color_black_g, 0, 0.8);
806 BOUNDCVAR(v_color_black_b, 0, 0.8);
807 BOUNDCVAR(v_color_grey_r, 0, 0.95);
808 BOUNDCVAR(v_color_grey_g, 0, 0.95);
809 BOUNDCVAR(v_color_grey_b, 0, 0.95);
810 BOUNDCVAR(v_color_white_r, 1, 5);
811 BOUNDCVAR(v_color_white_g, 1, 5);
812 BOUNDCVAR(v_color_white_b, 1, 5);
815 if (force || v_psycho.integer)
816 gamma_forcenextframe = true;
817 #define GAMMACHECK(cache, value) if (cache != (value)) gamma_forcenextframe = true;cache = (value)
818 GAMMACHECK(cachehwgamma , wantgamma);
819 GAMMACHECK(cachegamma , v_gamma.value);
820 GAMMACHECK(cachecontrast , v_contrast.value);
821 GAMMACHECK(cachebrightness , v_brightness.value);
822 GAMMACHECK(cachecolorenable, v_color_enable.integer);
823 GAMMACHECK(cacheblack[0] , v_color_black_r.value);
824 GAMMACHECK(cacheblack[1] , v_color_black_g.value);
825 GAMMACHECK(cacheblack[2] , v_color_black_b.value);
826 GAMMACHECK(cachegrey[0] , v_color_grey_r.value);
827 GAMMACHECK(cachegrey[1] , v_color_grey_g.value);
828 GAMMACHECK(cachegrey[2] , v_color_grey_b.value);
829 GAMMACHECK(cachewhite[0] , v_color_white_r.value);
830 GAMMACHECK(cachewhite[1] , v_color_white_g.value);
831 GAMMACHECK(cachewhite[2] , v_color_white_b.value);
834 if (!gamma_forcenextframe)
837 gamma_forcenextframe = false;
841 if (!vid_usinghwgamma)
843 vid_usinghwgamma = true;
844 if (vid_gammarampsize != rampsize || !vid_gammaramps)
846 vid_gammarampsize = rampsize;
848 Z_Free(vid_gammaramps);
849 vid_gammaramps = (unsigned short *)Z_Malloc(6 * vid_gammarampsize * sizeof(unsigned short));
850 vid_systemgammaramps = vid_gammaramps + 3 * vid_gammarampsize;
852 VID_GetGamma(vid_systemgammaramps, vid_gammarampsize);
855 if (cachecolorenable)
857 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[0]), cachewhite[0], cacheblack[0], vid_gammaramps, rampsize);
858 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[1]), cachewhite[1], cacheblack[1], vid_gammaramps + vid_gammarampsize, rampsize);
859 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[2]), cachewhite[2], cacheblack[2], vid_gammaramps + vid_gammarampsize*2, rampsize);
863 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps, rampsize);
864 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps + vid_gammarampsize, rampsize);
865 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps + vid_gammarampsize*2, rampsize);
868 // LordHavoc: this code came from Ben Winslow and Zinx Verituse, I have
869 // immensely butchered it to work with variable framerates and fit in with
870 // the rest of darkplaces.
871 if (v_psycho.integer)
875 static float n[3], nd[3], nt[3];
876 static int init = true;
877 unsigned short *ramp;
878 gamma_forcenextframe = true;
882 for (x = 0;x < 3;x++)
884 n[x] = lhrandom(0, 1);
885 nd[x] = (rand()&1)?-0.25:0.25;
886 nt[x] = lhrandom(1, 8.2);
890 for (x = 0;x < 3;x++)
892 nt[x] -= cl.realframetime;
896 nt[x] += lhrandom(1, 8.2);
898 n[x] += nd[x] * cl.realframetime;
902 for (x = 0, ramp = vid_gammaramps;x < 3;x++)
903 for (y = 0, t = n[x] - 0.75f;y < vid_gammarampsize;y++, t += 0.75f * (2.0f / vid_gammarampsize))
904 *ramp++ = (unsigned short)(cos(t*(M_PI*2.0)) * 32767.0f + 32767.0f);
907 // set vid_hardwaregammasupported to true if VID_SetGamma succeeds, OR if vid_hwgamma is >= 2 (forced gamma - ignores driver return value)
908 Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_gammaramps, vid_gammarampsize) || cachehwgamma >= 2);
909 // if custom gamma ramps failed (Windows stupidity), restore to system gamma
910 if(!vid_hardwaregammasupported.integer)
912 if (vid_usinghwgamma)
914 vid_usinghwgamma = false;
915 VID_SetGamma(vid_systemgammaramps, vid_gammarampsize);
921 if (vid_usinghwgamma)
923 vid_usinghwgamma = false;
924 VID_SetGamma(vid_systemgammaramps, vid_gammarampsize);
929 void VID_RestoreSystemGamma(void)
931 if (vid_usinghwgamma)
933 vid_usinghwgamma = false;
934 Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_systemgammaramps, vid_gammarampsize));
935 // force gamma situation to be reexamined next frame
936 gamma_forcenextframe = true;
940 void VID_Shared_Init(void)
942 Cvar_RegisterVariable(&vid_hardwaregammasupported);
943 Cvar_RegisterVariable(&v_gamma);
944 Cvar_RegisterVariable(&v_brightness);
945 Cvar_RegisterVariable(&v_contrast);
947 Cvar_RegisterVariable(&v_color_enable);
948 Cvar_RegisterVariable(&v_color_black_r);
949 Cvar_RegisterVariable(&v_color_black_g);
950 Cvar_RegisterVariable(&v_color_black_b);
951 Cvar_RegisterVariable(&v_color_grey_r);
952 Cvar_RegisterVariable(&v_color_grey_g);
953 Cvar_RegisterVariable(&v_color_grey_b);
954 Cvar_RegisterVariable(&v_color_white_r);
955 Cvar_RegisterVariable(&v_color_white_g);
956 Cvar_RegisterVariable(&v_color_white_b);
958 Cvar_RegisterVariable(&v_hwgamma);
960 Cvar_RegisterVariable(&v_psycho);
962 Cvar_RegisterVariable(&vid_fullscreen);
963 Cvar_RegisterVariable(&vid_width);
964 Cvar_RegisterVariable(&vid_height);
965 Cvar_RegisterVariable(&vid_bitsperpixel);
966 Cvar_RegisterVariable(&vid_refreshrate);
967 Cvar_RegisterVariable(&vid_stereobuffer);
968 Cvar_RegisterVariable(&vid_vsync);
969 Cvar_RegisterVariable(&vid_mouse);
970 Cvar_RegisterVariable(&vid_grabkeyboard);
971 Cvar_RegisterVariable(&vid_minwidth);
972 Cvar_RegisterVariable(&vid_minheight);
973 Cvar_RegisterVariable(&gl_combine);
974 Cvar_RegisterVariable(&gl_finish);
975 Cmd_AddCommand("force_centerview", Force_CenterView_f, "recenters view (stops looking up/down)");
976 Cmd_AddCommand("vid_restart", VID_Restart_f, "restarts video system (closes and reopens the window, restarts renderer)");
977 if (gamemode == GAME_GOODVSBAD2)
978 Cvar_Set("gl_combine", "0");
981 int VID_Mode(int fullscreen, int width, int height, int bpp, int refreshrate, int stereobuffer)
983 Con_Printf("Video: %s %dx%dx%dx%dhz%s\n", fullscreen ? "fullscreen" : "window", width, height, bpp, refreshrate, stereobuffer ? " stereo" : "");
984 if (VID_InitMode(fullscreen, width, height, bpp, refreshrate, stereobuffer))
986 vid.fullscreen = fullscreen;
989 vid.bitsperpixel = bpp;
990 vid.refreshrate = refreshrate;
991 vid.stereobuffer = stereobuffer;
992 Cvar_SetValueQuick(&vid_fullscreen, fullscreen);
993 Cvar_SetValueQuick(&vid_width, width);
994 Cvar_SetValueQuick(&vid_height, height);
995 Cvar_SetValueQuick(&vid_bitsperpixel, bpp);
996 Cvar_SetValueQuick(&vid_refreshrate, refreshrate);
997 Cvar_SetValueQuick(&vid_stereobuffer, stereobuffer);
1004 static void VID_OpenSystems(void)
1010 static void VID_CloseSystems(void)
1013 R_Modules_Shutdown();
1016 qboolean vid_commandlinecheck = true;
1018 void VID_Restart_f(void)
1020 // don't crash if video hasn't started yet
1021 if (vid_commandlinecheck)
1024 Con_Printf("VID_Restart: changing from %s %dx%dx%dbpp, to %s %dx%dx%dbpp.\n",
1025 vid.fullscreen ? "fullscreen" : "window", vid.width, vid.height, vid.bitsperpixel,
1026 vid_fullscreen.integer ? "fullscreen" : "window", vid_width.integer, vid_height.integer, vid_bitsperpixel.integer);
1029 if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.integer, vid_stereobuffer.integer))
1031 Con_Print("Video mode change failed\n");
1032 if (!VID_Mode(vid.fullscreen, vid.width, vid.height, vid.bitsperpixel, vid.refreshrate, vid.stereobuffer))
1033 Sys_Error("Unable to restore to last working video mode");
1038 // this is only called once by Host_StartVideo
1039 void VID_Start(void)
1041 int i, width, height, success;
1042 if (vid_commandlinecheck)
1044 // interpret command-line parameters
1045 vid_commandlinecheck = false;
1046 // COMMANDLINEOPTION: Video: -window performs +vid_fullscreen 0
1047 if (COM_CheckParm("-window") || COM_CheckParm("-safe"))
1048 Cvar_SetValueQuick(&vid_fullscreen, false);
1049 // COMMANDLINEOPTION: Video: -fullscreen performs +vid_fullscreen 1
1050 if (COM_CheckParm("-fullscreen"))
1051 Cvar_SetValueQuick(&vid_fullscreen, true);
1054 // 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)
1055 if ((i = COM_CheckParm("-width")) != 0)
1056 width = atoi(com_argv[i+1]);
1057 // 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)
1058 if ((i = COM_CheckParm("-height")) != 0)
1059 height = atoi(com_argv[i+1]);
1061 width = height * 4 / 3;
1063 height = width * 3 / 4;
1065 Cvar_SetValueQuick(&vid_width, width);
1067 Cvar_SetValueQuick(&vid_height, height);
1068 // COMMANDLINEOPTION: Video: -bpp <bits> performs +vid_bitsperpixel <bits> (example -bpp 32 or -bpp 16)
1069 if ((i = COM_CheckParm("-bpp")) != 0)
1070 Cvar_SetQuick(&vid_bitsperpixel, com_argv[i+1]);
1073 Con_Print("Starting video system\n");
1074 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.integer, vid_stereobuffer.integer);
1077 Con_Print("Desired video mode fail, trying fallbacks...\n");
1078 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, 60, vid_stereobuffer.integer);
1079 if (!success && vid_stereobuffer.integer)
1080 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.integer, false);
1081 if (!success && vid_bitsperpixel.integer > 16)
1082 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, 16, 60, false);
1083 if (!success && (vid_width.integer > 640 || vid_height.integer > 480))
1084 success = VID_Mode(vid_fullscreen.integer, 640, 480, 16, 60, false);
1085 if (!success && vid_fullscreen.integer)
1086 success = VID_Mode(false, 640, 480, 16, 60, false);
1088 Sys_Error("Video modes failed");