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_minwidth = {0, "vid_minwidth", "0", "minimum vid_width that is acceptable (to be set in default.cfg in mods)"};
87 cvar_t vid_minheight = {0, "vid_minheight", "0", "minimum vid_height that is acceptable (to be set in default.cfg in mods)"};
88 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)"};
89 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)"};
91 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"};
92 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)"};
93 cvar_t v_brightness = {CVAR_SAVE, "v_brightness", "0", "brightness of black, useful for monitors that are too dark"};
94 cvar_t v_color_enable = {CVAR_SAVE, "v_color_enable", "0", "enables black-grey-white color correction curve controls"};
95 cvar_t v_color_black_r = {CVAR_SAVE, "v_color_black_r", "0", "desired color of black"};
96 cvar_t v_color_black_g = {CVAR_SAVE, "v_color_black_g", "0", "desired color of black"};
97 cvar_t v_color_black_b = {CVAR_SAVE, "v_color_black_b", "0", "desired color of black"};
98 cvar_t v_color_grey_r = {CVAR_SAVE, "v_color_grey_r", "0.5", "desired color of grey"};
99 cvar_t v_color_grey_g = {CVAR_SAVE, "v_color_grey_g", "0.5", "desired color of grey"};
100 cvar_t v_color_grey_b = {CVAR_SAVE, "v_color_grey_b", "0.5", "desired color of grey"};
101 cvar_t v_color_white_r = {CVAR_SAVE, "v_color_white_r", "1", "desired color of white"};
102 cvar_t v_color_white_g = {CVAR_SAVE, "v_color_white_g", "1", "desired color of white"};
103 cvar_t v_color_white_b = {CVAR_SAVE, "v_color_white_b", "1", "desired color of white"};
104 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"};
105 cvar_t v_psycho = {0, "v_psycho", "0", "easter egg (does not work on Windows2000 or above)"};
107 // brand of graphics chip
108 const char *gl_vendor;
109 // graphics chip model and other information
110 const char *gl_renderer;
111 // begins with 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0
112 const char *gl_version;
113 // extensions list, space separated
114 const char *gl_extensions;
116 const char *gl_platform;
117 // another extensions list, containing platform-specific extensions that are
118 // not in the main list
119 const char *gl_platformextensions;
120 // name of driver library (opengl32.dll, libGL.so.1, or whatever)
123 // GL_ARB_multitexture
124 void (GLAPIENTRY *qglMultiTexCoord1f) (GLenum, GLfloat);
125 void (GLAPIENTRY *qglMultiTexCoord2f) (GLenum, GLfloat, GLfloat);
126 void (GLAPIENTRY *qglMultiTexCoord3f) (GLenum, GLfloat, GLfloat, GLfloat);
127 void (GLAPIENTRY *qglMultiTexCoord4f) (GLenum, GLfloat, GLfloat, GLfloat, GLfloat);
128 void (GLAPIENTRY *qglActiveTexture) (GLenum);
129 void (GLAPIENTRY *qglClientActiveTexture) (GLenum);
131 // GL_EXT_compiled_vertex_array
132 void (GLAPIENTRY *qglLockArraysEXT) (GLint first, GLint count);
133 void (GLAPIENTRY *qglUnlockArraysEXT) (void);
135 // general GL functions
137 void (GLAPIENTRY *qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
139 void (GLAPIENTRY *qglClear)(GLbitfield mask);
141 void (GLAPIENTRY *qglAlphaFunc)(GLenum func, GLclampf ref);
142 void (GLAPIENTRY *qglBlendFunc)(GLenum sfactor, GLenum dfactor);
143 void (GLAPIENTRY *qglCullFace)(GLenum mode);
145 void (GLAPIENTRY *qglDrawBuffer)(GLenum mode);
146 void (GLAPIENTRY *qglReadBuffer)(GLenum mode);
147 void (GLAPIENTRY *qglEnable)(GLenum cap);
148 void (GLAPIENTRY *qglDisable)(GLenum cap);
149 GLboolean (GLAPIENTRY *qglIsEnabled)(GLenum cap);
151 void (GLAPIENTRY *qglEnableClientState)(GLenum cap);
152 void (GLAPIENTRY *qglDisableClientState)(GLenum cap);
154 void (GLAPIENTRY *qglGetBooleanv)(GLenum pname, GLboolean *params);
155 void (GLAPIENTRY *qglGetDoublev)(GLenum pname, GLdouble *params);
156 void (GLAPIENTRY *qglGetFloatv)(GLenum pname, GLfloat *params);
157 void (GLAPIENTRY *qglGetIntegerv)(GLenum pname, GLint *params);
159 GLenum (GLAPIENTRY *qglGetError)(void);
160 const GLubyte* (GLAPIENTRY *qglGetString)(GLenum name);
161 void (GLAPIENTRY *qglFinish)(void);
162 void (GLAPIENTRY *qglFlush)(void);
164 void (GLAPIENTRY *qglClearDepth)(GLclampd depth);
165 void (GLAPIENTRY *qglDepthFunc)(GLenum func);
166 void (GLAPIENTRY *qglDepthMask)(GLboolean flag);
167 void (GLAPIENTRY *qglDepthRange)(GLclampd near_val, GLclampd far_val);
168 void (GLAPIENTRY *qglColorMask)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
170 void (GLAPIENTRY *qglDrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
171 void (GLAPIENTRY *qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
172 void (GLAPIENTRY *qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
173 void (GLAPIENTRY *qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *ptr);
174 void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
175 void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
176 void (GLAPIENTRY *qglArrayElement)(GLint i);
178 void (GLAPIENTRY *qglColor4f)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
179 void (GLAPIENTRY *qglTexCoord1f)(GLfloat s);
180 void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
181 void (GLAPIENTRY *qglTexCoord3f)(GLfloat s, GLfloat t, GLfloat r);
182 void (GLAPIENTRY *qglTexCoord4f)(GLfloat s, GLfloat t, GLfloat r, GLfloat q);
183 void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
184 void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
185 void (GLAPIENTRY *qglBegin)(GLenum mode);
186 void (GLAPIENTRY *qglEnd)(void);
188 void (GLAPIENTRY *qglMatrixMode)(GLenum mode);
189 void (GLAPIENTRY *qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
190 void (GLAPIENTRY *qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
191 void (GLAPIENTRY *qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
192 void (GLAPIENTRY *qglPushMatrix)(void);
193 void (GLAPIENTRY *qglPopMatrix)(void);
194 void (GLAPIENTRY *qglLoadIdentity)(void);
195 void (GLAPIENTRY *qglLoadMatrixd)(const GLdouble *m);
196 void (GLAPIENTRY *qglLoadMatrixf)(const GLfloat *m);
197 void (GLAPIENTRY *qglMultMatrixd)(const GLdouble *m);
198 void (GLAPIENTRY *qglMultMatrixf)(const GLfloat *m);
199 void (GLAPIENTRY *qglRotated)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
200 void (GLAPIENTRY *qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
201 void (GLAPIENTRY *qglScaled)(GLdouble x, GLdouble y, GLdouble z);
202 void (GLAPIENTRY *qglScalef)(GLfloat x, GLfloat y, GLfloat z);
203 void (GLAPIENTRY *qglTranslated)(GLdouble x, GLdouble y, GLdouble z);
204 void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
206 void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
208 void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
209 void (GLAPIENTRY *qglStencilMask)(GLuint mask);
210 void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
211 void (GLAPIENTRY *qglClearStencil)(GLint s);
213 void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
214 void (GLAPIENTRY *qglTexEnvfv)(GLenum target, GLenum pname, const GLfloat *params);
215 void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
216 void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
217 void (GLAPIENTRY *qglTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
218 void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
220 void (GLAPIENTRY *qglGenTextures)(GLsizei n, GLuint *textures);
221 void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
222 void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
223 //void (GLAPIENTRY *qglPrioritizeTextures)(GLsizei n, const GLuint *textures, const GLclampf *priorities);
224 //GLboolean (GLAPIENTRY *qglAreTexturesResident)(GLsizei n, const GLuint *textures, GLboolean *residences);
225 GLboolean (GLAPIENTRY *qglIsTexture)(GLuint texture);
226 void (GLAPIENTRY *qglPixelStoref)(GLenum pname, GLfloat param);
227 void (GLAPIENTRY *qglPixelStorei)(GLenum pname, GLint param);
229 void (GLAPIENTRY *qglTexImage1D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
230 void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
231 void (GLAPIENTRY *qglTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels);
232 void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
233 void (GLAPIENTRY *qglCopyTexImage1D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
234 void (GLAPIENTRY *qglCopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
235 void (GLAPIENTRY *qglCopyTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
236 void (GLAPIENTRY *qglCopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
239 void (GLAPIENTRY *qglDrawRangeElementsEXT)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
241 //void (GLAPIENTRY *qglColorTableEXT)(int, int, int, int, int, const void *);
243 void (GLAPIENTRY *qglTexImage3D)(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
244 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);
245 void (GLAPIENTRY *qglCopyTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
247 void (GLAPIENTRY *qglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
249 void (GLAPIENTRY *qglPolygonOffset)(GLfloat factor, GLfloat units);
250 void (GLAPIENTRY *qglPolygonMode)(GLenum face, GLenum mode);
251 void (GLAPIENTRY *qglPolygonStipple)(const GLubyte *mask);
253 //[515]: added on 29.07.2005
254 void (GLAPIENTRY *qglLineWidth)(GLfloat width);
255 void (GLAPIENTRY *qglPointSize)(GLfloat size);
257 void (GLAPIENTRY *qglBlendEquationEXT)(GLenum);
259 void (GLAPIENTRY *qglStencilOpSeparate)(GLenum, GLenum, GLenum, GLenum);
260 void (GLAPIENTRY *qglStencilFuncSeparate)(GLenum, GLenum, GLint, GLuint);
261 void (GLAPIENTRY *qglActiveStencilFaceEXT)(GLenum);
263 void (GLAPIENTRY *qglDeleteObjectARB)(GLhandleARB obj);
264 GLhandleARB (GLAPIENTRY *qglGetHandleARB)(GLenum pname);
265 void (GLAPIENTRY *qglDetachObjectARB)(GLhandleARB containerObj, GLhandleARB attachedObj);
266 GLhandleARB (GLAPIENTRY *qglCreateShaderObjectARB)(GLenum shaderType);
267 void (GLAPIENTRY *qglShaderSourceARB)(GLhandleARB shaderObj, GLsizei count, const GLcharARB **string, const GLint *length);
268 void (GLAPIENTRY *qglCompileShaderARB)(GLhandleARB shaderObj);
269 GLhandleARB (GLAPIENTRY *qglCreateProgramObjectARB)(void);
270 void (GLAPIENTRY *qglAttachObjectARB)(GLhandleARB containerObj, GLhandleARB obj);
271 void (GLAPIENTRY *qglLinkProgramARB)(GLhandleARB programObj);
272 void (GLAPIENTRY *qglUseProgramObjectARB)(GLhandleARB programObj);
273 void (GLAPIENTRY *qglValidateProgramARB)(GLhandleARB programObj);
274 void (GLAPIENTRY *qglUniform1fARB)(GLint location, GLfloat v0);
275 void (GLAPIENTRY *qglUniform2fARB)(GLint location, GLfloat v0, GLfloat v1);
276 void (GLAPIENTRY *qglUniform3fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
277 void (GLAPIENTRY *qglUniform4fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
278 void (GLAPIENTRY *qglUniform1iARB)(GLint location, GLint v0);
279 void (GLAPIENTRY *qglUniform2iARB)(GLint location, GLint v0, GLint v1);
280 void (GLAPIENTRY *qglUniform3iARB)(GLint location, GLint v0, GLint v1, GLint v2);
281 void (GLAPIENTRY *qglUniform4iARB)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
282 void (GLAPIENTRY *qglUniform1fvARB)(GLint location, GLsizei count, const GLfloat *value);
283 void (GLAPIENTRY *qglUniform2fvARB)(GLint location, GLsizei count, const GLfloat *value);
284 void (GLAPIENTRY *qglUniform3fvARB)(GLint location, GLsizei count, const GLfloat *value);
285 void (GLAPIENTRY *qglUniform4fvARB)(GLint location, GLsizei count, const GLfloat *value);
286 void (GLAPIENTRY *qglUniform1ivARB)(GLint location, GLsizei count, const GLint *value);
287 void (GLAPIENTRY *qglUniform2ivARB)(GLint location, GLsizei count, const GLint *value);
288 void (GLAPIENTRY *qglUniform3ivARB)(GLint location, GLsizei count, const GLint *value);
289 void (GLAPIENTRY *qglUniform4ivARB)(GLint location, GLsizei count, const GLint *value);
290 void (GLAPIENTRY *qglUniformMatrix2fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
291 void (GLAPIENTRY *qglUniformMatrix3fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
292 void (GLAPIENTRY *qglUniformMatrix4fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
293 void (GLAPIENTRY *qglGetObjectParameterfvARB)(GLhandleARB obj, GLenum pname, GLfloat *params);
294 void (GLAPIENTRY *qglGetObjectParameterivARB)(GLhandleARB obj, GLenum pname, GLint *params);
295 void (GLAPIENTRY *qglGetInfoLogARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *infoLog);
296 void (GLAPIENTRY *qglGetAttachedObjectsARB)(GLhandleARB containerObj, GLsizei maxCount, GLsizei *count, GLhandleARB *obj);
297 GLint (GLAPIENTRY *qglGetUniformLocationARB)(GLhandleARB programObj, const GLcharARB *name);
298 void (GLAPIENTRY *qglGetActiveUniformARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
299 void (GLAPIENTRY *qglGetUniformfvARB)(GLhandleARB programObj, GLint location, GLfloat *params);
300 void (GLAPIENTRY *qglGetUniformivARB)(GLhandleARB programObj, GLint location, GLint *params);
301 void (GLAPIENTRY *qglGetShaderSourceARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *source);
303 //void (GLAPIENTRY *qglVertexAttrib1fARB)(GLuint index, GLfloat v0);
304 //void (GLAPIENTRY *qglVertexAttrib1sARB)(GLuint index, GLshort v0);
305 //void (GLAPIENTRY *qglVertexAttrib1dARB)(GLuint index, GLdouble v0);
306 //void (GLAPIENTRY *qglVertexAttrib2fARB)(GLuint index, GLfloat v0, GLfloat v1);
307 //void (GLAPIENTRY *qglVertexAttrib2sARB)(GLuint index, GLshort v0, GLshort v1);
308 //void (GLAPIENTRY *qglVertexAttrib2dARB)(GLuint index, GLdouble v0, GLdouble v1);
309 //void (GLAPIENTRY *qglVertexAttrib3fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2);
310 //void (GLAPIENTRY *qglVertexAttrib3sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2);
311 //void (GLAPIENTRY *qglVertexAttrib3dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2);
312 //void (GLAPIENTRY *qglVertexAttrib4fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
313 //void (GLAPIENTRY *qglVertexAttrib4sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2, GLshort v3);
314 //void (GLAPIENTRY *qglVertexAttrib4dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2, GLdouble v3);
315 //void (GLAPIENTRY *qglVertexAttrib4NubARB)(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
316 //void (GLAPIENTRY *qglVertexAttrib1fvARB)(GLuint index, const GLfloat *v);
317 //void (GLAPIENTRY *qglVertexAttrib1svARB)(GLuint index, const GLshort *v);
318 //void (GLAPIENTRY *qglVertexAttrib1dvARB)(GLuint index, const GLdouble *v);
319 //void (GLAPIENTRY *qglVertexAttrib2fvARB)(GLuint index, const GLfloat *v);
320 //void (GLAPIENTRY *qglVertexAttrib2svARB)(GLuint index, const GLshort *v);
321 //void (GLAPIENTRY *qglVertexAttrib2dvARB)(GLuint index, const GLdouble *v);
322 //void (GLAPIENTRY *qglVertexAttrib3fvARB)(GLuint index, const GLfloat *v);
323 //void (GLAPIENTRY *qglVertexAttrib3svARB)(GLuint index, const GLshort *v);
324 //void (GLAPIENTRY *qglVertexAttrib3dvARB)(GLuint index, const GLdouble *v);
325 //void (GLAPIENTRY *qglVertexAttrib4fvARB)(GLuint index, const GLfloat *v);
326 //void (GLAPIENTRY *qglVertexAttrib4svARB)(GLuint index, const GLshort *v);
327 //void (GLAPIENTRY *qglVertexAttrib4dvARB)(GLuint index, const GLdouble *v);
328 //void (GLAPIENTRY *qglVertexAttrib4ivARB)(GLuint index, const GLint *v);
329 //void (GLAPIENTRY *qglVertexAttrib4bvARB)(GLuint index, const GLbyte *v);
330 //void (GLAPIENTRY *qglVertexAttrib4ubvARB)(GLuint index, const GLubyte *v);
331 //void (GLAPIENTRY *qglVertexAttrib4usvARB)(GLuint index, const GLushort *v);
332 //void (GLAPIENTRY *qglVertexAttrib4uivARB)(GLuint index, const GLuint *v);
333 //void (GLAPIENTRY *qglVertexAttrib4NbvARB)(GLuint index, const GLbyte *v);
334 //void (GLAPIENTRY *qglVertexAttrib4NsvARB)(GLuint index, const GLshort *v);
335 //void (GLAPIENTRY *qglVertexAttrib4NivARB)(GLuint index, const GLint *v);
336 //void (GLAPIENTRY *qglVertexAttrib4NubvARB)(GLuint index, const GLubyte *v);
337 //void (GLAPIENTRY *qglVertexAttrib4NusvARB)(GLuint index, const GLushort *v);
338 //void (GLAPIENTRY *qglVertexAttrib4NuivARB)(GLuint index, const GLuint *v);
339 void (GLAPIENTRY *qglVertexAttribPointerARB)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
340 void (GLAPIENTRY *qglEnableVertexAttribArrayARB)(GLuint index);
341 void (GLAPIENTRY *qglDisableVertexAttribArrayARB)(GLuint index);
342 void (GLAPIENTRY *qglBindAttribLocationARB)(GLhandleARB programObj, GLuint index, const GLcharARB *name);
343 void (GLAPIENTRY *qglGetActiveAttribARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
344 GLint (GLAPIENTRY *qglGetAttribLocationARB)(GLhandleARB programObj, const GLcharARB *name);
345 //void (GLAPIENTRY *qglGetVertexAttribdvARB)(GLuint index, GLenum pname, GLdouble *params);
346 //void (GLAPIENTRY *qglGetVertexAttribfvARB)(GLuint index, GLenum pname, GLfloat *params);
347 //void (GLAPIENTRY *qglGetVertexAttribivARB)(GLuint index, GLenum pname, GLint *params);
348 //void (GLAPIENTRY *qglGetVertexAttribPointervARB)(GLuint index, GLenum pname, GLvoid **pointer);
350 int GL_CheckExtension(const char *name, const dllfunction_t *funcs, const char *disableparm, int silent)
353 const dllfunction_t *func;
355 Con_Printf("checking for %s... ", name);
357 for (func = funcs;func && func->name;func++)
358 *func->funcvariable = NULL;
360 if (disableparm && (COM_CheckParm(disableparm) || COM_CheckParm("-safe")))
362 Con_Print("disabled by commandline\n");
366 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)))
368 for (func = funcs;func && func->name != NULL;func++)
370 // functions are cleared before all the extensions are evaluated
371 if (!(*func->funcvariable = (void *) GL_GetProcAddress(func->name)))
374 Con_Printf("OpenGL extension \"%s\" is missing function \"%s\" - broken driver!\n", name, func->name);
378 // delay the return so it prints all missing functions
381 Con_Print("enabled\n");
386 Con_Print("not detected\n");
391 static dllfunction_t opengl110funcs[] =
393 {"glClearColor", (void **) &qglClearColor},
394 {"glClear", (void **) &qglClear},
395 {"glAlphaFunc", (void **) &qglAlphaFunc},
396 {"glBlendFunc", (void **) &qglBlendFunc},
397 {"glCullFace", (void **) &qglCullFace},
398 {"glDrawBuffer", (void **) &qglDrawBuffer},
399 {"glReadBuffer", (void **) &qglReadBuffer},
400 {"glEnable", (void **) &qglEnable},
401 {"glDisable", (void **) &qglDisable},
402 {"glIsEnabled", (void **) &qglIsEnabled},
403 {"glEnableClientState", (void **) &qglEnableClientState},
404 {"glDisableClientState", (void **) &qglDisableClientState},
405 {"glGetBooleanv", (void **) &qglGetBooleanv},
406 {"glGetDoublev", (void **) &qglGetDoublev},
407 {"glGetFloatv", (void **) &qglGetFloatv},
408 {"glGetIntegerv", (void **) &qglGetIntegerv},
409 {"glGetError", (void **) &qglGetError},
410 {"glGetString", (void **) &qglGetString},
411 {"glFinish", (void **) &qglFinish},
412 {"glFlush", (void **) &qglFlush},
413 {"glClearDepth", (void **) &qglClearDepth},
414 {"glDepthFunc", (void **) &qglDepthFunc},
415 {"glDepthMask", (void **) &qglDepthMask},
416 {"glDepthRange", (void **) &qglDepthRange},
417 {"glDrawElements", (void **) &qglDrawElements},
418 {"glColorMask", (void **) &qglColorMask},
419 {"glVertexPointer", (void **) &qglVertexPointer},
420 {"glNormalPointer", (void **) &qglNormalPointer},
421 {"glColorPointer", (void **) &qglColorPointer},
422 {"glTexCoordPointer", (void **) &qglTexCoordPointer},
423 {"glArrayElement", (void **) &qglArrayElement},
424 {"glColor4f", (void **) &qglColor4f},
425 {"glTexCoord1f", (void **) &qglTexCoord1f},
426 {"glTexCoord2f", (void **) &qglTexCoord2f},
427 {"glTexCoord3f", (void **) &qglTexCoord3f},
428 {"glTexCoord4f", (void **) &qglTexCoord4f},
429 {"glVertex2f", (void **) &qglVertex2f},
430 {"glVertex3f", (void **) &qglVertex3f},
431 {"glBegin", (void **) &qglBegin},
432 {"glEnd", (void **) &qglEnd},
433 //[515]: added on 29.07.2005
434 {"glLineWidth", (void**) &qglLineWidth},
435 {"glPointSize", (void**) &qglPointSize},
437 {"glMatrixMode", (void **) &qglMatrixMode},
438 {"glOrtho", (void **) &qglOrtho},
439 {"glFrustum", (void **) &qglFrustum},
440 {"glViewport", (void **) &qglViewport},
441 {"glPushMatrix", (void **) &qglPushMatrix},
442 {"glPopMatrix", (void **) &qglPopMatrix},
443 {"glLoadIdentity", (void **) &qglLoadIdentity},
444 {"glLoadMatrixd", (void **) &qglLoadMatrixd},
445 {"glLoadMatrixf", (void **) &qglLoadMatrixf},
446 {"glMultMatrixd", (void **) &qglMultMatrixd},
447 {"glMultMatrixf", (void **) &qglMultMatrixf},
448 {"glRotated", (void **) &qglRotated},
449 {"glRotatef", (void **) &qglRotatef},
450 {"glScaled", (void **) &qglScaled},
451 {"glScalef", (void **) &qglScalef},
452 {"glTranslated", (void **) &qglTranslated},
453 {"glTranslatef", (void **) &qglTranslatef},
454 {"glReadPixels", (void **) &qglReadPixels},
455 {"glStencilFunc", (void **) &qglStencilFunc},
456 {"glStencilMask", (void **) &qglStencilMask},
457 {"glStencilOp", (void **) &qglStencilOp},
458 {"glClearStencil", (void **) &qglClearStencil},
459 {"glTexEnvf", (void **) &qglTexEnvf},
460 {"glTexEnvfv", (void **) &qglTexEnvfv},
461 {"glTexEnvi", (void **) &qglTexEnvi},
462 {"glTexParameterf", (void **) &qglTexParameterf},
463 {"glTexParameterfv", (void **) &qglTexParameterfv},
464 {"glTexParameteri", (void **) &qglTexParameteri},
465 {"glPixelStoref", (void **) &qglPixelStoref},
466 {"glPixelStorei", (void **) &qglPixelStorei},
467 {"glGenTextures", (void **) &qglGenTextures},
468 {"glDeleteTextures", (void **) &qglDeleteTextures},
469 {"glBindTexture", (void **) &qglBindTexture},
470 // {"glPrioritizeTextures", (void **) &qglPrioritizeTextures},
471 // {"glAreTexturesResident", (void **) &qglAreTexturesResident},
472 {"glIsTexture", (void **) &qglIsTexture},
473 {"glTexImage1D", (void **) &qglTexImage1D},
474 {"glTexImage2D", (void **) &qglTexImage2D},
475 {"glTexSubImage1D", (void **) &qglTexSubImage1D},
476 {"glTexSubImage2D", (void **) &qglTexSubImage2D},
477 {"glCopyTexImage1D", (void **) &qglCopyTexImage1D},
478 {"glCopyTexImage2D", (void **) &qglCopyTexImage2D},
479 {"glCopyTexSubImage1D", (void **) &qglCopyTexSubImage1D},
480 {"glCopyTexSubImage2D", (void **) &qglCopyTexSubImage2D},
481 {"glScissor", (void **) &qglScissor},
482 {"glPolygonOffset", (void **) &qglPolygonOffset},
483 {"glPolygonMode", (void **) &qglPolygonMode},
484 {"glPolygonStipple", (void **) &qglPolygonStipple},
488 static dllfunction_t drawrangeelementsfuncs[] =
490 {"glDrawRangeElements", (void **) &qglDrawRangeElements},
494 static dllfunction_t drawrangeelementsextfuncs[] =
496 {"glDrawRangeElementsEXT", (void **) &qglDrawRangeElementsEXT},
500 static dllfunction_t multitexturefuncs[] =
502 {"glMultiTexCoord1fARB", (void **) &qglMultiTexCoord1f},
503 {"glMultiTexCoord2fARB", (void **) &qglMultiTexCoord2f},
504 {"glMultiTexCoord3fARB", (void **) &qglMultiTexCoord3f},
505 {"glMultiTexCoord4fARB", (void **) &qglMultiTexCoord4f},
506 {"glActiveTextureARB", (void **) &qglActiveTexture},
507 {"glClientActiveTextureARB", (void **) &qglClientActiveTexture},
511 static dllfunction_t compiledvertexarrayfuncs[] =
513 {"glLockArraysEXT", (void **) &qglLockArraysEXT},
514 {"glUnlockArraysEXT", (void **) &qglUnlockArraysEXT},
518 static dllfunction_t texture3dextfuncs[] =
520 {"glTexImage3DEXT", (void **) &qglTexImage3D},
521 {"glTexSubImage3DEXT", (void **) &qglTexSubImage3D},
522 {"glCopyTexSubImage3DEXT", (void **) &qglCopyTexSubImage3D},
526 static dllfunction_t atiseparatestencilfuncs[] =
528 {"glStencilOpSeparateATI", (void **) &qglStencilOpSeparate},
529 {"glStencilFuncSeparateATI", (void **) &qglStencilFuncSeparate},
533 static dllfunction_t gl2separatestencilfuncs[] =
535 {"glStencilOpSeparate", (void **) &qglStencilOpSeparate},
536 {"glStencilFuncSeparate", (void **) &qglStencilFuncSeparate},
540 static dllfunction_t stenciltwosidefuncs[] =
542 {"glActiveStencilFaceEXT", (void **) &qglActiveStencilFaceEXT},
546 static dllfunction_t blendequationfuncs[] =
548 {"glBlendEquationEXT", (void **) &qglBlendEquationEXT},
552 static dllfunction_t shaderobjectsfuncs[] =
554 {"glDeleteObjectARB", (void **) &qglDeleteObjectARB},
555 {"glGetHandleARB", (void **) &qglGetHandleARB},
556 {"glDetachObjectARB", (void **) &qglDetachObjectARB},
557 {"glCreateShaderObjectARB", (void **) &qglCreateShaderObjectARB},
558 {"glShaderSourceARB", (void **) &qglShaderSourceARB},
559 {"glCompileShaderARB", (void **) &qglCompileShaderARB},
560 {"glCreateProgramObjectARB", (void **) &qglCreateProgramObjectARB},
561 {"glAttachObjectARB", (void **) &qglAttachObjectARB},
562 {"glLinkProgramARB", (void **) &qglLinkProgramARB},
563 {"glUseProgramObjectARB", (void **) &qglUseProgramObjectARB},
564 {"glValidateProgramARB", (void **) &qglValidateProgramARB},
565 {"glUniform1fARB", (void **) &qglUniform1fARB},
566 {"glUniform2fARB", (void **) &qglUniform2fARB},
567 {"glUniform3fARB", (void **) &qglUniform3fARB},
568 {"glUniform4fARB", (void **) &qglUniform4fARB},
569 {"glUniform1iARB", (void **) &qglUniform1iARB},
570 {"glUniform2iARB", (void **) &qglUniform2iARB},
571 {"glUniform3iARB", (void **) &qglUniform3iARB},
572 {"glUniform4iARB", (void **) &qglUniform4iARB},
573 {"glUniform1fvARB", (void **) &qglUniform1fvARB},
574 {"glUniform2fvARB", (void **) &qglUniform2fvARB},
575 {"glUniform3fvARB", (void **) &qglUniform3fvARB},
576 {"glUniform4fvARB", (void **) &qglUniform4fvARB},
577 {"glUniform1ivARB", (void **) &qglUniform1ivARB},
578 {"glUniform2ivARB", (void **) &qglUniform2ivARB},
579 {"glUniform3ivARB", (void **) &qglUniform3ivARB},
580 {"glUniform4ivARB", (void **) &qglUniform4ivARB},
581 {"glUniformMatrix2fvARB", (void **) &qglUniformMatrix2fvARB},
582 {"glUniformMatrix3fvARB", (void **) &qglUniformMatrix3fvARB},
583 {"glUniformMatrix4fvARB", (void **) &qglUniformMatrix4fvARB},
584 {"glGetObjectParameterfvARB", (void **) &qglGetObjectParameterfvARB},
585 {"glGetObjectParameterivARB", (void **) &qglGetObjectParameterivARB},
586 {"glGetInfoLogARB", (void **) &qglGetInfoLogARB},
587 {"glGetAttachedObjectsARB", (void **) &qglGetAttachedObjectsARB},
588 {"glGetUniformLocationARB", (void **) &qglGetUniformLocationARB},
589 {"glGetActiveUniformARB", (void **) &qglGetActiveUniformARB},
590 {"glGetUniformfvARB", (void **) &qglGetUniformfvARB},
591 {"glGetUniformivARB", (void **) &qglGetUniformivARB},
592 {"glGetShaderSourceARB", (void **) &qglGetShaderSourceARB},
596 static dllfunction_t vertexshaderfuncs[] =
598 // {"glVertexAttrib1fARB", (void **) &qglVertexAttrib1fARB},
599 // {"glVertexAttrib1sARB", (void **) &qglVertexAttrib1sARB},
600 // {"glVertexAttrib1dARB", (void **) &qglVertexAttrib1dARB},
601 // {"glVertexAttrib2fARB", (void **) &qglVertexAttrib2fARB},
602 // {"glVertexAttrib2sARB", (void **) &qglVertexAttrib2sARB},
603 // {"glVertexAttrib2dARB", (void **) &qglVertexAttrib2dARB},
604 // {"glVertexAttrib3fARB", (void **) &qglVertexAttrib3fARB},
605 // {"glVertexAttrib3sARB", (void **) &qglVertexAttrib3sARB},
606 // {"glVertexAttrib3dARB", (void **) &qglVertexAttrib3dARB},
607 // {"glVertexAttrib4fARB", (void **) &qglVertexAttrib4fARB},
608 // {"glVertexAttrib4sARB", (void **) &qglVertexAttrib4sARB},
609 // {"glVertexAttrib4dARB", (void **) &qglVertexAttrib4dARB},
610 // {"glVertexAttrib4NubARB", (void **) &qglVertexAttrib4NubARB},
611 // {"glVertexAttrib1fvARB", (void **) &qglVertexAttrib1fvARB},
612 // {"glVertexAttrib1svARB", (void **) &qglVertexAttrib1svARB},
613 // {"glVertexAttrib1dvARB", (void **) &qglVertexAttrib1dvARB},
614 // {"glVertexAttrib2fvARB", (void **) &qglVertexAttrib1fvARB},
615 // {"glVertexAttrib2svARB", (void **) &qglVertexAttrib1svARB},
616 // {"glVertexAttrib2dvARB", (void **) &qglVertexAttrib1dvARB},
617 // {"glVertexAttrib3fvARB", (void **) &qglVertexAttrib1fvARB},
618 // {"glVertexAttrib3svARB", (void **) &qglVertexAttrib1svARB},
619 // {"glVertexAttrib3dvARB", (void **) &qglVertexAttrib1dvARB},
620 // {"glVertexAttrib4fvARB", (void **) &qglVertexAttrib1fvARB},
621 // {"glVertexAttrib4svARB", (void **) &qglVertexAttrib1svARB},
622 // {"glVertexAttrib4dvARB", (void **) &qglVertexAttrib1dvARB},
623 // {"glVertexAttrib4ivARB", (void **) &qglVertexAttrib1ivARB},
624 // {"glVertexAttrib4bvARB", (void **) &qglVertexAttrib1bvARB},
625 // {"glVertexAttrib4ubvARB", (void **) &qglVertexAttrib1ubvARB},
626 // {"glVertexAttrib4usvARB", (void **) &qglVertexAttrib1usvARB},
627 // {"glVertexAttrib4uivARB", (void **) &qglVertexAttrib1uivARB},
628 // {"glVertexAttrib4NbvARB", (void **) &qglVertexAttrib1NbvARB},
629 // {"glVertexAttrib4NsvARB", (void **) &qglVertexAttrib1NsvARB},
630 // {"glVertexAttrib4NivARB", (void **) &qglVertexAttrib1NivARB},
631 // {"glVertexAttrib4NubvARB", (void **) &qglVertexAttrib1NubvARB},
632 // {"glVertexAttrib4NusvARB", (void **) &qglVertexAttrib1NusvARB},
633 // {"glVertexAttrib4NuivARB", (void **) &qglVertexAttrib1NuivARB},
634 {"glVertexAttribPointerARB", (void **) &qglVertexAttribPointerARB},
635 {"glEnableVertexAttribArrayARB", (void **) &qglEnableVertexAttribArrayARB},
636 {"glDisableVertexAttribArrayARB", (void **) &qglDisableVertexAttribArrayARB},
637 {"glBindAttribLocationARB", (void **) &qglBindAttribLocationARB},
638 {"glGetActiveAttribARB", (void **) &qglGetActiveAttribARB},
639 {"glGetAttribLocationARB", (void **) &qglGetAttribLocationARB},
640 // {"glGetVertexAttribdvARB", (void **) &qglGetVertexAttribdvARB},
641 // {"glGetVertexAttribfvARB", (void **) &qglGetVertexAttribfvARB},
642 // {"glGetVertexAttribivARB", (void **) &qglGetVertexAttribivARB},
643 // {"glGetVertexAttribPointervARB", (void **) &qglGetVertexAttribPointervARB},
648 void VID_CheckExtensions(void)
650 gl_stencil = vid_bitsperpixel.integer == 32;
652 // reset all the gl extension variables here
653 // this should match the declarations
654 gl_max_texture_size = 0;
655 gl_max_3d_texture_size = 0;
656 gl_max_cube_map_texture_size = 0;
658 gl_combine_extension = false;
659 gl_supportslockarrays = false;
660 gl_texture3d = false;
661 gl_texturecubemap = false;
662 gl_support_arb_texture_non_power_of_two = false;
664 gl_support_clamptoedge = false;
665 gl_support_anisotropy = false;
666 gl_max_anisotropy = 1;
667 gl_support_separatestencil = false;
668 gl_support_stenciltwoside = false;
669 gl_support_ext_blend_minmax = false;
670 gl_support_ext_blend_subtract = false;
671 gl_support_shader_objects = false;
672 gl_support_shading_language_100 = false;
673 gl_support_vertex_shader = false;
674 gl_support_fragment_shader = false;
676 if (!GL_CheckExtension("OpenGL 1.1.0", opengl110funcs, NULL, false))
677 Sys_Error("OpenGL 1.1.0 functions not found");
679 Con_Printf("GL_VENDOR: %s\n", gl_vendor);
680 Con_Printf("GL_RENDERER: %s\n", gl_renderer);
681 Con_Printf("GL_VERSION: %s\n", gl_version);
682 Con_Printf("GL_EXTENSIONS: %s\n", gl_extensions);
683 Con_Printf("%s_EXTENSIONS: %s\n", gl_platform, gl_platformextensions);
686 qglGetIntegerv(GL_MAX_TEXTURE_SIZE, &gl_max_texture_size);
688 Con_Print("Checking OpenGL extensions...\n");
690 // COMMANDLINEOPTION: GL: -nodrawrangeelements disables GL_EXT_draw_range_elements (renders faster)
691 if (!GL_CheckExtension("glDrawRangeElements", drawrangeelementsfuncs, "-nodrawrangeelements", true))
692 GL_CheckExtension("GL_EXT_draw_range_elements", drawrangeelementsextfuncs, "-nodrawrangeelements", false);
694 // COMMANDLINEOPTION: GL: -nomtex disables GL_ARB_multitexture (required for faster map rendering)
695 if (GL_CheckExtension("GL_ARB_multitexture", multitexturefuncs, "-nomtex", false))
697 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &gl_textureunits);
698 // COMMANDLINEOPTION: GL: -nocombine disables GL_ARB_texture_env_combine or GL_EXT_texture_env_combine (required for bumpmapping and faster map rendering)
699 gl_combine_extension = GL_CheckExtension("GL_ARB_texture_env_combine", NULL, "-nocombine", false) || GL_CheckExtension("GL_EXT_texture_env_combine", NULL, "-nocombine", false);
700 // COMMANDLINEOPTION: GL: -nodot3 disables GL_ARB_texture_env_dot3 (required for bumpmapping)
701 if (gl_combine_extension)
702 gl_dot3arb = GL_CheckExtension("GL_ARB_texture_env_dot3", NULL, "-nodot3", false);
705 // COMMANDLINEOPTION: GL: -notexture3d disables GL_EXT_texture3D (required for spherical lights, otherwise they render as a column)
706 if ((gl_texture3d = GL_CheckExtension("GL_EXT_texture3D", texture3dextfuncs, "-notexture3d", false)))
708 qglGetIntegerv(GL_MAX_3D_TEXTURE_SIZE, &gl_max_3d_texture_size);
709 if (gl_max_3d_texture_size < 32)
711 gl_texture3d = false;
712 Con_Printf("GL_EXT_texture3D reported bogus GL_MAX_3D_TEXTURE_SIZE, disabled\n");
715 // COMMANDLINEOPTION: GL: -nocubemap disables GL_ARB_texture_cube_map (required for bumpmapping)
716 if ((gl_texturecubemap = GL_CheckExtension("GL_ARB_texture_cube_map", NULL, "-nocubemap", false)))
717 qglGetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, &gl_max_cube_map_texture_size);
718 gl_support_arb_texture_non_power_of_two = GL_CheckExtension("GL_ARB_texture_non_power_of_two", NULL, "-notexturenonpoweroftwo", false);
719 // COMMANDLINEOPTION: GL: -nocva disables GL_EXT_compiled_vertex_array (renders faster)
720 gl_supportslockarrays = GL_CheckExtension("GL_EXT_compiled_vertex_array", compiledvertexarrayfuncs, "-nocva", false);
721 // 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)
722 gl_support_clamptoedge = GL_CheckExtension("GL_EXT_texture_edge_clamp", NULL, "-noedgeclamp", false) || GL_CheckExtension("GL_SGIS_texture_edge_clamp", NULL, "-noedgeclamp", false);
724 // COMMANDLINEOPTION: GL: -noanisotropy disables GL_EXT_texture_filter_anisotropic (allows higher quality texturing)
725 if ((gl_support_anisotropy = GL_CheckExtension("GL_EXT_texture_filter_anisotropic", NULL, "-noanisotropy", false)))
726 qglGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &gl_max_anisotropy);
728 gl_support_ext_blend_minmax = GL_CheckExtension("GL_EXT_blend_minmax", blendequationfuncs, "-noblendminmax", false);
729 gl_support_ext_blend_subtract = GL_CheckExtension("GL_EXT_blend_subtract", blendequationfuncs, "-noblendsubtract", false);
731 // COMMANDLINEOPTION: GL: -noseparatestencil disables use of OpenGL2.0 glStencilOpSeparate and GL_ATI_separate_stencil extensions (accelerates shadow rendering)
732 if (!(gl_support_separatestencil = GL_CheckExtension("glStencilOpSeparate", gl2separatestencilfuncs, "-noseparatestencil", false)))
733 gl_support_separatestencil = GL_CheckExtension("GL_ATI_separate_stencil", atiseparatestencilfuncs, "-noseparatestencil", false);
734 // COMMANDLINEOPTION: GL: -nostenciltwoside disables GL_EXT_stencil_two_side (accelerates shadow rendering)
735 gl_support_stenciltwoside = GL_CheckExtension("GL_EXT_stencil_two_side", stenciltwosidefuncs, "-nostenciltwoside", false);
737 // we don't care if it's an extension or not, they are identical functions, so keep it simple in the rendering code
738 if (qglDrawRangeElements == NULL)
739 qglDrawRangeElements = qglDrawRangeElementsEXT;
741 // COMMANDLINEOPTION: GL: -noshaderobjects disables GL_ARB_shader_objects (required for vertex shader and fragment shader)
742 // COMMANDLINEOPTION: GL: -noshadinglanguage100 disables GL_ARB_shading_language_100 (required for vertex shader and fragment shader)
743 // COMMANDLINEOPTION: GL: -novertexshader disables GL_ARB_vertex_shader (allows vertex shader effects)
744 // COMMANDLINEOPTION: GL: -nofragmentshader disables GL_ARB_fragment_shader (allows pixel shader effects, can improve per pixel lighting performance and capabilities)
745 if ((gl_support_shader_objects = GL_CheckExtension("GL_ARB_shader_objects", shaderobjectsfuncs, "-noshaderobjects", false)))
746 if ((gl_support_shading_language_100 = GL_CheckExtension("GL_ARB_shading_language_100", NULL, "-noshadinglanguage100", false)))
747 if ((gl_support_vertex_shader = GL_CheckExtension("GL_ARB_vertex_shader", vertexshaderfuncs, "-novertexshader", false)))
748 gl_support_fragment_shader = GL_CheckExtension("GL_ARB_fragment_shader", NULL, "-nofragmentshader", false);
752 void Force_CenterView_f (void)
754 cl.viewangles[PITCH] = 0;
757 static int gamma_forcenextframe = false;
758 static float cachegamma, cachebrightness, cachecontrast, cacheblack[3], cachegrey[3], cachewhite[3];
759 static int cachecolorenable, cachehwgamma;
760 #define BOUNDCVAR(cvar, m1, m2) c = &(cvar);f = bound(m1, c->value, m2);if (c->value != f) Cvar_SetValueQuick(c, f);
761 void VID_UpdateGamma(qboolean force, int rampsize)
766 // LordHavoc: don't mess with gamma tables if running dedicated
767 if (cls.state == ca_dedicated)
771 && !gamma_forcenextframe
773 && cachehwgamma == (vid_activewindow ? v_hwgamma.integer : 0)
774 && v_gamma.value == cachegamma
775 && v_contrast.value == cachecontrast
776 && v_brightness.value == cachebrightness
777 && cachecolorenable == v_color_enable.integer
778 && cacheblack[0] == v_color_black_r.value
779 && cacheblack[1] == v_color_black_g.value
780 && cacheblack[2] == v_color_black_b.value
781 && cachegrey[0] == v_color_grey_r.value
782 && cachegrey[1] == v_color_grey_g.value
783 && cachegrey[2] == v_color_grey_b.value
784 && cachewhite[0] == v_color_white_r.value
785 && cachewhite[1] == v_color_white_g.value
786 && cachewhite[2] == v_color_white_b.value)
789 BOUNDCVAR(v_gamma, 0.1, 5);cachegamma = v_gamma.value;
790 BOUNDCVAR(v_contrast, 1, 5);cachecontrast = v_contrast.value;
791 BOUNDCVAR(v_brightness, 0, 0.8);cachebrightness = v_brightness.value;
792 BOUNDCVAR(v_color_black_r, 0, 0.8);cacheblack[0] = v_color_black_r.value;
793 BOUNDCVAR(v_color_black_g, 0, 0.8);cacheblack[1] = v_color_black_g.value;
794 BOUNDCVAR(v_color_black_b, 0, 0.8);cacheblack[2] = v_color_black_b.value;
795 BOUNDCVAR(v_color_grey_r, 0, 0.95);cachegrey[0] = v_color_grey_r.value;
796 BOUNDCVAR(v_color_grey_g, 0, 0.95);cachegrey[1] = v_color_grey_g.value;
797 BOUNDCVAR(v_color_grey_b, 0, 0.95);cachegrey[2] = v_color_grey_b.value;
798 BOUNDCVAR(v_color_white_r, 1, 5);cachewhite[0] = v_color_white_r.value;
799 BOUNDCVAR(v_color_white_g, 1, 5);cachewhite[1] = v_color_white_g.value;
800 BOUNDCVAR(v_color_white_b, 1, 5);cachewhite[2] = v_color_white_b.value;
801 cachecolorenable = v_color_enable.integer;
802 cachehwgamma = vid_activewindow ? v_hwgamma.integer : 0;
804 gamma_forcenextframe = false;
808 if (!vid_usinghwgamma)
810 vid_usinghwgamma = true;
811 if (vid_gammarampsize != rampsize || !vid_gammaramps)
813 vid_gammarampsize = rampsize;
815 Z_Free(vid_gammaramps);
816 vid_gammaramps = (unsigned short *)Z_Malloc(6 * vid_gammarampsize * sizeof(unsigned short));
817 vid_systemgammaramps = vid_gammaramps + 3 * vid_gammarampsize;
819 VID_GetGamma(vid_systemgammaramps, vid_gammarampsize);
822 if (cachecolorenable)
824 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[0]), cachewhite[0], cacheblack[0], vid_gammaramps, rampsize);
825 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[1]), cachewhite[1], cacheblack[1], vid_gammaramps + vid_gammarampsize, rampsize);
826 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[2]), cachewhite[2], cacheblack[2], vid_gammaramps + vid_gammarampsize*2, rampsize);
830 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps, rampsize);
831 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps + vid_gammarampsize, rampsize);
832 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps + vid_gammarampsize*2, rampsize);
835 // LordHavoc: this code came from Ben Winslow and Zinx Verituse, I have
836 // immensely butchered it to work with variable framerates and fit in with
837 // the rest of darkplaces.
838 if (v_psycho.integer)
842 static float n[3], nd[3], nt[3];
843 static int init = true;
844 unsigned short *ramp;
845 gamma_forcenextframe = true;
849 for (x = 0;x < 3;x++)
851 n[x] = lhrandom(0, 1);
852 nd[x] = (rand()&1)?-0.25:0.25;
853 nt[x] = lhrandom(1, 8.2);
857 for (x = 0;x < 3;x++)
859 nt[x] -= cl.realframetime;
863 nt[x] += lhrandom(1, 8.2);
865 n[x] += nd[x] * cl.realframetime;
869 for (x = 0, ramp = vid_gammaramps;x < 3;x++)
870 for (y = 0, t = n[x] - 0.75f;y < vid_gammarampsize;y++, t += 0.75f * (2.0f / vid_gammarampsize))
871 *ramp++ = (unsigned short)(cos(t*(M_PI*2.0)) * 32767.0f + 32767.0f);
874 // set vid_hardwaregammasupported to true if VID_SetGamma succeeds, OR if vid_hwgamma is >= 2 (forced gamma - ignores driver return value)
875 Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_gammaramps, vid_gammarampsize) || cachehwgamma >= 2);
876 // if custom gamma ramps failed (Windows stupidity), restore to system gamma
877 if(!vid_hardwaregammasupported.integer)
879 if (vid_usinghwgamma)
881 vid_usinghwgamma = false;
882 VID_SetGamma(vid_systemgammaramps, vid_gammarampsize);
888 if (vid_usinghwgamma)
890 vid_usinghwgamma = false;
891 VID_SetGamma(vid_systemgammaramps, vid_gammarampsize);
896 void VID_RestoreSystemGamma(void)
898 if (vid_usinghwgamma)
900 vid_usinghwgamma = false;
901 Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_systemgammaramps, vid_gammarampsize));
902 // force gamma situation to be reexamined next frame
903 gamma_forcenextframe = true;
907 void VID_Shared_Init(void)
909 Cvar_RegisterVariable(&vid_hardwaregammasupported);
910 Cvar_RegisterVariable(&v_gamma);
911 Cvar_RegisterVariable(&v_brightness);
912 Cvar_RegisterVariable(&v_contrast);
914 Cvar_RegisterVariable(&v_color_enable);
915 Cvar_RegisterVariable(&v_color_black_r);
916 Cvar_RegisterVariable(&v_color_black_g);
917 Cvar_RegisterVariable(&v_color_black_b);
918 Cvar_RegisterVariable(&v_color_grey_r);
919 Cvar_RegisterVariable(&v_color_grey_g);
920 Cvar_RegisterVariable(&v_color_grey_b);
921 Cvar_RegisterVariable(&v_color_white_r);
922 Cvar_RegisterVariable(&v_color_white_g);
923 Cvar_RegisterVariable(&v_color_white_b);
925 Cvar_RegisterVariable(&v_hwgamma);
927 Cvar_RegisterVariable(&v_psycho);
929 Cvar_RegisterVariable(&vid_fullscreen);
930 Cvar_RegisterVariable(&vid_width);
931 Cvar_RegisterVariable(&vid_height);
932 Cvar_RegisterVariable(&vid_bitsperpixel);
933 Cvar_RegisterVariable(&vid_refreshrate);
934 Cvar_RegisterVariable(&vid_stereobuffer);
935 Cvar_RegisterVariable(&vid_vsync);
936 Cvar_RegisterVariable(&vid_mouse);
937 Cvar_RegisterVariable(&vid_minwidth);
938 Cvar_RegisterVariable(&vid_minheight);
939 Cvar_RegisterVariable(&gl_combine);
940 Cvar_RegisterVariable(&gl_finish);
941 Cmd_AddCommand("force_centerview", Force_CenterView_f, "recenters view (stops looking up/down)");
942 Cmd_AddCommand("vid_restart", VID_Restart_f, "restarts video system (closes and reopens the window, restarts renderer)");
943 if (gamemode == GAME_GOODVSBAD2)
944 Cvar_Set("gl_combine", "0");
947 int VID_Mode(int fullscreen, int width, int height, int bpp, int refreshrate, int stereobuffer)
949 Con_Printf("Video: %s %dx%dx%dx%dhz%s\n", fullscreen ? "fullscreen" : "window", width, height, bpp, refreshrate, stereobuffer ? " stereo" : "");
950 if (VID_InitMode(fullscreen, width, height, bpp, refreshrate, stereobuffer))
952 vid.fullscreen = fullscreen;
955 vid.bitsperpixel = bpp;
956 vid.refreshrate = refreshrate;
957 vid.stereobuffer = stereobuffer;
958 Cvar_SetValueQuick(&vid_fullscreen, fullscreen);
959 Cvar_SetValueQuick(&vid_width, width);
960 Cvar_SetValueQuick(&vid_height, height);
961 Cvar_SetValueQuick(&vid_bitsperpixel, bpp);
962 Cvar_SetValueQuick(&vid_refreshrate, refreshrate);
963 Cvar_SetValueQuick(&vid_stereobuffer, stereobuffer);
970 static void VID_OpenSystems(void)
976 static void VID_CloseSystems(void)
979 R_Modules_Shutdown();
982 qboolean vid_commandlinecheck = true;
984 void VID_Restart_f(void)
986 // don't crash if video hasn't started yet
987 if (vid_commandlinecheck)
990 Con_Printf("VID_Restart: changing from %s %dx%dx%dbpp, to %s %dx%dx%dbpp.\n",
991 vid.fullscreen ? "fullscreen" : "window", vid.width, vid.height, vid.bitsperpixel,
992 vid_fullscreen.integer ? "fullscreen" : "window", vid_width.integer, vid_height.integer, vid_bitsperpixel.integer);
995 if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.integer, vid_stereobuffer.integer))
997 Con_Print("Video mode change failed\n");
998 if (!VID_Mode(vid.fullscreen, vid.width, vid.height, vid.bitsperpixel, vid.refreshrate, vid.stereobuffer))
999 Sys_Error("Unable to restore to last working video mode");
1004 // this is only called once by Host_StartVideo
1005 void VID_Start(void)
1007 int i, width, height, success;
1008 if (vid_commandlinecheck)
1010 // interpret command-line parameters
1011 vid_commandlinecheck = false;
1012 // COMMANDLINEOPTION: Video: -window performs +vid_fullscreen 0
1013 if (COM_CheckParm("-window") || COM_CheckParm("-safe"))
1014 Cvar_SetValueQuick(&vid_fullscreen, false);
1015 // COMMANDLINEOPTION: Video: -fullscreen performs +vid_fullscreen 1
1016 if (COM_CheckParm("-fullscreen"))
1017 Cvar_SetValueQuick(&vid_fullscreen, true);
1020 // 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)
1021 if ((i = COM_CheckParm("-width")) != 0)
1022 width = atoi(com_argv[i+1]);
1023 // 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)
1024 if ((i = COM_CheckParm("-height")) != 0)
1025 height = atoi(com_argv[i+1]);
1027 width = height * 4 / 3;
1029 height = width * 3 / 4;
1031 Cvar_SetValueQuick(&vid_width, width);
1033 Cvar_SetValueQuick(&vid_height, height);
1034 // COMMANDLINEOPTION: Video: -bpp <bits> performs +vid_bitsperpixel <bits> (example -bpp 32 or -bpp 16)
1035 if ((i = COM_CheckParm("-bpp")) != 0)
1036 Cvar_SetQuick(&vid_bitsperpixel, com_argv[i+1]);
1039 Con_Print("Starting video system\n");
1040 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.integer, vid_stereobuffer.integer);
1043 Con_Print("Desired video mode fail, trying fallbacks...\n");
1044 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, 60, vid_stereobuffer.integer);
1045 if (!success && vid_stereobuffer.integer)
1046 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.integer, false);
1047 if (!success && vid_bitsperpixel.integer > 16)
1048 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, 16, 60, false);
1049 if (!success && (vid_width.integer > 640 || vid_height.integer > 480))
1050 success = VID_Mode(vid_fullscreen.integer, 640, 480, 16, 60, false);
1051 if (!success && vid_fullscreen.integer)
1052 success = VID_Mode(false, 640, 480, 16, 60, false);
1054 Sys_Error("Video modes failed");