12 // LordHavoc: these are only set in wgl
13 qboolean isG200 = false; // LordHavoc: the Matrox G200 can't do per pixel alpha, and it uses a D3D driver for GL... ugh...
14 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.
16 // AK FIXME -> input_dest
17 qboolean in_client_mouse = true;
19 // AK where should it be placed ?
20 float in_mouse_x, in_mouse_y;
21 float in_windowmouse_x, in_windowmouse_y;
23 // LordHavoc: if window is hidden, don't update screen
24 qboolean vid_hidden = true;
25 // LordHavoc: if window is not the active window, don't hog as much CPU time,
26 // let go of the mouse, turn off sound, and restore system gamma ramps...
27 qboolean vid_activewindow = true;
29 // we don't know until we try it!
30 cvar_t vid_hardwaregammasupported = {CVAR_READONLY,"vid_hardwaregammasupported","1", "indicates whether hardware gamma is supported (updated by attempts to set hardware gamma ramps)"};
32 // VorteX: more info cvars, mostly set in VID_CheckExtensions
33 cvar_t gl_info_vendor = {CVAR_READONLY, "gl_info_vendor", "", "indicates brand of graphics chip"};
34 cvar_t gl_info_renderer = {CVAR_READONLY, "gl_info_renderer", "", "indicates graphics chip model and other information"};
35 cvar_t gl_info_version = {CVAR_READONLY, "gl_info_version", "", "indicates version of current renderer. begins with 1.0.0, 1.1.0, 1.2.0, 1.3.1 etc."};
36 cvar_t gl_info_extensions = {CVAR_READONLY, "gl_info_extensions", "", "indicates extension list found by engine, space separated."};
37 cvar_t gl_info_platform = {CVAR_READONLY, "gl_info_platform", "", "indicates GL platform: WGL, GLX, or AGL."};
38 cvar_t gl_info_driver = {CVAR_READONLY, "gl_info_driver", "", "name of driver library (opengl32.dll, libGL.so.1, or whatever)."};
40 // whether hardware gamma ramps are currently in effect
41 qboolean vid_usinghwgamma = false;
43 int vid_gammarampsize = 0;
44 unsigned short *vid_gammaramps = NULL;
45 unsigned short *vid_systemgammaramps = NULL;
47 cvar_t vid_fullscreen = {CVAR_SAVE, "vid_fullscreen", "1", "use fullscreen (1) or windowed (0)"};
48 cvar_t vid_width = {CVAR_SAVE, "vid_width", "640", "resolution"};
49 cvar_t vid_height = {CVAR_SAVE, "vid_height", "480", "resolution"};
50 cvar_t vid_bitsperpixel = {CVAR_SAVE, "vid_bitsperpixel", "32", "how many bits per pixel to render at (32 or 16, 32 is recommended)"};
51 cvar_t vid_samples = {CVAR_SAVE, "vid_samples", "1", "how many anti-aliasing samples per pixel to request from the graphics driver (4 is recommended, 1 is faster)"};
52 cvar_t vid_refreshrate = {CVAR_SAVE, "vid_refreshrate", "60", "refresh rate to use, in hz (higher values flicker less, if supported by your monitor)"};
53 cvar_t vid_userefreshrate = {CVAR_SAVE, "vid_userefreshrate", "0", "set this to 1 to make vid_refreshrate used, or to 0 to let the engine choose a sane default"};
54 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"};
56 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"};
57 cvar_t vid_mouse = {CVAR_SAVE, "vid_mouse", "1", "whether to use the mouse in windowed mode (fullscreen always does)"};
58 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)"};
59 cvar_t vid_minwidth = {0, "vid_minwidth", "0", "minimum vid_width that is acceptable (to be set in default.cfg in mods)"};
60 cvar_t vid_minheight = {0, "vid_minheight", "0", "minimum vid_height that is acceptable (to be set in default.cfg in mods)"};
61 cvar_t vid_gl13 = {0, "vid_gl13", "1", "enables faster rendering using OpenGL 1.3 features (such as GL_ARB_texture_env_combine extension)"};
62 cvar_t vid_gl20 = {0, "vid_gl20", "1", "enables faster rendering using OpenGL 2.0 features (such as GL_ARB_fragment_shader extension)"};
64 cvar_t vid_cggl = {0, "vid_glcg", "1", "enables faster rendering using the Cg shader library"};
66 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)"};
68 cvar_t vid_stick_mouse = {CVAR_SAVE, "vid_stick_mouse", "0", "have the mouse stuck in the center of the screen" };
69 cvar_t vid_resizable = {CVAR_SAVE, "vid_resizable", "0", "0: window not resizable, 1: resizable, 2: window can be resized but the framebuffer isn't adjusted" };
71 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"};
72 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)"};
73 cvar_t v_brightness = {CVAR_SAVE, "v_brightness", "0", "brightness of black, useful for monitors that are too dark"};
74 cvar_t v_contrastboost = {CVAR_SAVE, "v_contrastboost", "1", "by how much to multiply the contrast in dark areas (1 is no change)"};
75 cvar_t v_color_enable = {CVAR_SAVE, "v_color_enable", "0", "enables black-grey-white color correction curve controls"};
76 cvar_t v_color_black_r = {CVAR_SAVE, "v_color_black_r", "0", "desired color of black"};
77 cvar_t v_color_black_g = {CVAR_SAVE, "v_color_black_g", "0", "desired color of black"};
78 cvar_t v_color_black_b = {CVAR_SAVE, "v_color_black_b", "0", "desired color of black"};
79 cvar_t v_color_grey_r = {CVAR_SAVE, "v_color_grey_r", "0.5", "desired color of grey"};
80 cvar_t v_color_grey_g = {CVAR_SAVE, "v_color_grey_g", "0.5", "desired color of grey"};
81 cvar_t v_color_grey_b = {CVAR_SAVE, "v_color_grey_b", "0.5", "desired color of grey"};
82 cvar_t v_color_white_r = {CVAR_SAVE, "v_color_white_r", "1", "desired color of white"};
83 cvar_t v_color_white_g = {CVAR_SAVE, "v_color_white_g", "1", "desired color of white"};
84 cvar_t v_color_white_b = {CVAR_SAVE, "v_color_white_b", "1", "desired color of white"};
85 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"};
86 cvar_t v_glslgamma = {CVAR_SAVE, "v_glslgamma", "0", "enables use of GLSL to apply gamma correction ramps if available (note: overrides v_hwgamma)"};
87 cvar_t v_psycho = {0, "v_psycho", "0", "easter egg (does not work on Windows2000 or above)"};
89 // brand of graphics chip
90 const char *gl_vendor;
91 // graphics chip model and other information
92 const char *gl_renderer;
93 // begins with 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0
94 const char *gl_version;
95 // extensions list, space separated
96 const char *gl_extensions;
98 const char *gl_platform;
99 // another extensions list, containing platform-specific extensions that are
100 // not in the main list
101 const char *gl_platformextensions;
102 // name of driver library (opengl32.dll, libGL.so.1, or whatever)
105 // GL_ARB_multitexture
106 void (GLAPIENTRY *qglMultiTexCoord1f) (GLenum, GLfloat);
107 void (GLAPIENTRY *qglMultiTexCoord2f) (GLenum, GLfloat, GLfloat);
108 void (GLAPIENTRY *qglMultiTexCoord3f) (GLenum, GLfloat, GLfloat, GLfloat);
109 void (GLAPIENTRY *qglMultiTexCoord4f) (GLenum, GLfloat, GLfloat, GLfloat, GLfloat);
110 void (GLAPIENTRY *qglActiveTexture) (GLenum);
111 void (GLAPIENTRY *qglClientActiveTexture) (GLenum);
113 // general GL functions
115 void (GLAPIENTRY *qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
117 void (GLAPIENTRY *qglClear)(GLbitfield mask);
119 void (GLAPIENTRY *qglAlphaFunc)(GLenum func, GLclampf ref);
120 void (GLAPIENTRY *qglBlendFunc)(GLenum sfactor, GLenum dfactor);
121 void (GLAPIENTRY *qglCullFace)(GLenum mode);
123 void (GLAPIENTRY *qglDrawBuffer)(GLenum mode);
124 void (GLAPIENTRY *qglReadBuffer)(GLenum mode);
125 void (GLAPIENTRY *qglEnable)(GLenum cap);
126 void (GLAPIENTRY *qglDisable)(GLenum cap);
127 GLboolean (GLAPIENTRY *qglIsEnabled)(GLenum cap);
129 void (GLAPIENTRY *qglEnableClientState)(GLenum cap);
130 void (GLAPIENTRY *qglDisableClientState)(GLenum cap);
132 void (GLAPIENTRY *qglGetBooleanv)(GLenum pname, GLboolean *params);
133 void (GLAPIENTRY *qglGetDoublev)(GLenum pname, GLdouble *params);
134 void (GLAPIENTRY *qglGetFloatv)(GLenum pname, GLfloat *params);
135 void (GLAPIENTRY *qglGetIntegerv)(GLenum pname, GLint *params);
137 GLenum (GLAPIENTRY *qglGetError)(void);
138 const GLubyte* (GLAPIENTRY *qglGetString)(GLenum name);
139 void (GLAPIENTRY *qglFinish)(void);
140 void (GLAPIENTRY *qglFlush)(void);
142 void (GLAPIENTRY *qglClearDepth)(GLclampd depth);
143 void (GLAPIENTRY *qglDepthFunc)(GLenum func);
144 void (GLAPIENTRY *qglDepthMask)(GLboolean flag);
145 void (GLAPIENTRY *qglDepthRange)(GLclampd near_val, GLclampd far_val);
146 void (GLAPIENTRY *qglColorMask)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
148 void (GLAPIENTRY *qglDrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
149 void (GLAPIENTRY *qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
150 void (GLAPIENTRY *qglDrawArrays)(GLenum mode, GLint first, GLsizei count);
151 void (GLAPIENTRY *qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
152 void (GLAPIENTRY *qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *ptr);
153 void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
154 void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
155 void (GLAPIENTRY *qglArrayElement)(GLint i);
157 void (GLAPIENTRY *qglColor4ub)(GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha);
158 void (GLAPIENTRY *qglColor4f)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
159 void (GLAPIENTRY *qglTexCoord1f)(GLfloat s);
160 void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
161 void (GLAPIENTRY *qglTexCoord3f)(GLfloat s, GLfloat t, GLfloat r);
162 void (GLAPIENTRY *qglTexCoord4f)(GLfloat s, GLfloat t, GLfloat r, GLfloat q);
163 void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
164 void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
165 void (GLAPIENTRY *qglVertex4f)(GLfloat x, GLfloat y, GLfloat z, GLfloat w);
166 void (GLAPIENTRY *qglBegin)(GLenum mode);
167 void (GLAPIENTRY *qglEnd)(void);
169 void (GLAPIENTRY *qglMatrixMode)(GLenum mode);
170 //void (GLAPIENTRY *qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
171 //void (GLAPIENTRY *qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
172 void (GLAPIENTRY *qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
173 //void (GLAPIENTRY *qglPushMatrix)(void);
174 //void (GLAPIENTRY *qglPopMatrix)(void);
175 void (GLAPIENTRY *qglLoadIdentity)(void);
176 //void (GLAPIENTRY *qglLoadMatrixd)(const GLdouble *m);
177 void (GLAPIENTRY *qglLoadMatrixf)(const GLfloat *m);
178 //void (GLAPIENTRY *qglMultMatrixd)(const GLdouble *m);
179 //void (GLAPIENTRY *qglMultMatrixf)(const GLfloat *m);
180 //void (GLAPIENTRY *qglRotated)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
181 //void (GLAPIENTRY *qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
182 //void (GLAPIENTRY *qglScaled)(GLdouble x, GLdouble y, GLdouble z);
183 //void (GLAPIENTRY *qglScalef)(GLfloat x, GLfloat y, GLfloat z);
184 //void (GLAPIENTRY *qglTranslated)(GLdouble x, GLdouble y, GLdouble z);
185 //void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
187 void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
189 void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
190 void (GLAPIENTRY *qglStencilMask)(GLuint mask);
191 void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
192 void (GLAPIENTRY *qglClearStencil)(GLint s);
194 void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
195 void (GLAPIENTRY *qglTexEnvfv)(GLenum target, GLenum pname, const GLfloat *params);
196 void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
197 void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
198 void (GLAPIENTRY *qglTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
199 void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
200 void (GLAPIENTRY *qglGetTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
201 void (GLAPIENTRY *qglGetTexParameteriv)(GLenum target, GLenum pname, GLint *params);
202 void (GLAPIENTRY *qglGetTexLevelParameterfv)(GLenum target, GLint level, GLenum pname, GLfloat *params);
203 void (GLAPIENTRY *qglGetTexLevelParameteriv)(GLenum target, GLint level, GLenum pname, GLint *params);
204 void (GLAPIENTRY *qglGetTexImage)(GLenum target, GLint level, GLenum format, GLenum type, GLvoid *pixels);
205 void (GLAPIENTRY *qglHint)(GLenum target, GLenum mode);
207 void (GLAPIENTRY *qglGenTextures)(GLsizei n, GLuint *textures);
208 void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
209 void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
210 //void (GLAPIENTRY *qglPrioritizeTextures)(GLsizei n, const GLuint *textures, const GLclampf *priorities);
211 //GLboolean (GLAPIENTRY *qglAreTexturesResident)(GLsizei n, const GLuint *textures, GLboolean *residences);
212 //GLboolean (GLAPIENTRY *qglIsTexture)(GLuint texture);
213 //void (GLAPIENTRY *qglPixelStoref)(GLenum pname, GLfloat param);
214 void (GLAPIENTRY *qglPixelStorei)(GLenum pname, GLint param);
216 //void (GLAPIENTRY *qglTexImage1D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
217 void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
218 //void (GLAPIENTRY *qglTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels);
219 void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
220 //void (GLAPIENTRY *qglCopyTexImage1D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
221 void (GLAPIENTRY *qglCopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
222 //void (GLAPIENTRY *qglCopyTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
223 void (GLAPIENTRY *qglCopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
226 void (GLAPIENTRY *qglDrawRangeElementsEXT)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
228 //void (GLAPIENTRY *qglColorTableEXT)(int, int, int, int, int, const void *);
230 void (GLAPIENTRY *qglTexImage3D)(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
231 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);
232 void (GLAPIENTRY *qglCopyTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
234 void (GLAPIENTRY *qglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
236 void (GLAPIENTRY *qglPolygonOffset)(GLfloat factor, GLfloat units);
237 void (GLAPIENTRY *qglPolygonMode)(GLenum face, GLenum mode);
238 void (GLAPIENTRY *qglPolygonStipple)(const GLubyte *mask);
240 //void (GLAPIENTRY *qglClipPlane)(GLenum plane, const GLdouble *equation);
241 //void (GLAPIENTRY *qglGetClipPlane)(GLenum plane, GLdouble *equation);
243 //[515]: added on 29.07.2005
244 void (GLAPIENTRY *qglLineWidth)(GLfloat width);
245 void (GLAPIENTRY *qglPointSize)(GLfloat size);
247 void (GLAPIENTRY *qglBlendEquationEXT)(GLenum);
249 void (GLAPIENTRY *qglStencilOpSeparate)(GLenum, GLenum, GLenum, GLenum);
250 void (GLAPIENTRY *qglStencilFuncSeparate)(GLenum, GLenum, GLint, GLuint);
251 void (GLAPIENTRY *qglActiveStencilFaceEXT)(GLenum);
253 void (GLAPIENTRY *qglDeleteObjectARB)(GLhandleARB obj);
254 GLhandleARB (GLAPIENTRY *qglGetHandleARB)(GLenum pname);
255 void (GLAPIENTRY *qglDetachObjectARB)(GLhandleARB containerObj, GLhandleARB attachedObj);
256 GLhandleARB (GLAPIENTRY *qglCreateShaderObjectARB)(GLenum shaderType);
257 void (GLAPIENTRY *qglShaderSourceARB)(GLhandleARB shaderObj, GLsizei count, const GLcharARB **string, const GLint *length);
258 void (GLAPIENTRY *qglCompileShaderARB)(GLhandleARB shaderObj);
259 GLhandleARB (GLAPIENTRY *qglCreateProgramObjectARB)(void);
260 void (GLAPIENTRY *qglAttachObjectARB)(GLhandleARB containerObj, GLhandleARB obj);
261 void (GLAPIENTRY *qglLinkProgramARB)(GLhandleARB programObj);
262 void (GLAPIENTRY *qglUseProgramObjectARB)(GLhandleARB programObj);
263 void (GLAPIENTRY *qglValidateProgramARB)(GLhandleARB programObj);
264 void (GLAPIENTRY *qglUniform1fARB)(GLint location, GLfloat v0);
265 void (GLAPIENTRY *qglUniform2fARB)(GLint location, GLfloat v0, GLfloat v1);
266 void (GLAPIENTRY *qglUniform3fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
267 void (GLAPIENTRY *qglUniform4fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
268 void (GLAPIENTRY *qglUniform1iARB)(GLint location, GLint v0);
269 void (GLAPIENTRY *qglUniform2iARB)(GLint location, GLint v0, GLint v1);
270 void (GLAPIENTRY *qglUniform3iARB)(GLint location, GLint v0, GLint v1, GLint v2);
271 void (GLAPIENTRY *qglUniform4iARB)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
272 void (GLAPIENTRY *qglUniform1fvARB)(GLint location, GLsizei count, const GLfloat *value);
273 void (GLAPIENTRY *qglUniform2fvARB)(GLint location, GLsizei count, const GLfloat *value);
274 void (GLAPIENTRY *qglUniform3fvARB)(GLint location, GLsizei count, const GLfloat *value);
275 void (GLAPIENTRY *qglUniform4fvARB)(GLint location, GLsizei count, const GLfloat *value);
276 void (GLAPIENTRY *qglUniform1ivARB)(GLint location, GLsizei count, const GLint *value);
277 void (GLAPIENTRY *qglUniform2ivARB)(GLint location, GLsizei count, const GLint *value);
278 void (GLAPIENTRY *qglUniform3ivARB)(GLint location, GLsizei count, const GLint *value);
279 void (GLAPIENTRY *qglUniform4ivARB)(GLint location, GLsizei count, const GLint *value);
280 void (GLAPIENTRY *qglUniformMatrix2fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
281 void (GLAPIENTRY *qglUniformMatrix3fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
282 void (GLAPIENTRY *qglUniformMatrix4fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
283 void (GLAPIENTRY *qglGetObjectParameterfvARB)(GLhandleARB obj, GLenum pname, GLfloat *params);
284 void (GLAPIENTRY *qglGetObjectParameterivARB)(GLhandleARB obj, GLenum pname, GLint *params);
285 void (GLAPIENTRY *qglGetInfoLogARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *infoLog);
286 void (GLAPIENTRY *qglGetAttachedObjectsARB)(GLhandleARB containerObj, GLsizei maxCount, GLsizei *count, GLhandleARB *obj);
287 GLint (GLAPIENTRY *qglGetUniformLocationARB)(GLhandleARB programObj, const GLcharARB *name);
288 void (GLAPIENTRY *qglGetActiveUniformARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
289 void (GLAPIENTRY *qglGetUniformfvARB)(GLhandleARB programObj, GLint location, GLfloat *params);
290 void (GLAPIENTRY *qglGetUniformivARB)(GLhandleARB programObj, GLint location, GLint *params);
291 void (GLAPIENTRY *qglGetShaderSourceARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *source);
293 //void (GLAPIENTRY *qglVertexAttrib1fARB)(GLuint index, GLfloat v0);
294 //void (GLAPIENTRY *qglVertexAttrib1sARB)(GLuint index, GLshort v0);
295 //void (GLAPIENTRY *qglVertexAttrib1dARB)(GLuint index, GLdouble v0);
296 //void (GLAPIENTRY *qglVertexAttrib2fARB)(GLuint index, GLfloat v0, GLfloat v1);
297 //void (GLAPIENTRY *qglVertexAttrib2sARB)(GLuint index, GLshort v0, GLshort v1);
298 //void (GLAPIENTRY *qglVertexAttrib2dARB)(GLuint index, GLdouble v0, GLdouble v1);
299 //void (GLAPIENTRY *qglVertexAttrib3fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2);
300 //void (GLAPIENTRY *qglVertexAttrib3sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2);
301 //void (GLAPIENTRY *qglVertexAttrib3dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2);
302 //void (GLAPIENTRY *qglVertexAttrib4fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
303 //void (GLAPIENTRY *qglVertexAttrib4sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2, GLshort v3);
304 //void (GLAPIENTRY *qglVertexAttrib4dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2, GLdouble v3);
305 //void (GLAPIENTRY *qglVertexAttrib4NubARB)(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
306 //void (GLAPIENTRY *qglVertexAttrib1fvARB)(GLuint index, const GLfloat *v);
307 //void (GLAPIENTRY *qglVertexAttrib1svARB)(GLuint index, const GLshort *v);
308 //void (GLAPIENTRY *qglVertexAttrib1dvARB)(GLuint index, const GLdouble *v);
309 //void (GLAPIENTRY *qglVertexAttrib2fvARB)(GLuint index, const GLfloat *v);
310 //void (GLAPIENTRY *qglVertexAttrib2svARB)(GLuint index, const GLshort *v);
311 //void (GLAPIENTRY *qglVertexAttrib2dvARB)(GLuint index, const GLdouble *v);
312 //void (GLAPIENTRY *qglVertexAttrib3fvARB)(GLuint index, const GLfloat *v);
313 //void (GLAPIENTRY *qglVertexAttrib3svARB)(GLuint index, const GLshort *v);
314 //void (GLAPIENTRY *qglVertexAttrib3dvARB)(GLuint index, const GLdouble *v);
315 //void (GLAPIENTRY *qglVertexAttrib4fvARB)(GLuint index, const GLfloat *v);
316 //void (GLAPIENTRY *qglVertexAttrib4svARB)(GLuint index, const GLshort *v);
317 //void (GLAPIENTRY *qglVertexAttrib4dvARB)(GLuint index, const GLdouble *v);
318 //void (GLAPIENTRY *qglVertexAttrib4ivARB)(GLuint index, const GLint *v);
319 //void (GLAPIENTRY *qglVertexAttrib4bvARB)(GLuint index, const GLbyte *v);
320 //void (GLAPIENTRY *qglVertexAttrib4ubvARB)(GLuint index, const GLubyte *v);
321 //void (GLAPIENTRY *qglVertexAttrib4usvARB)(GLuint index, const GLushort *v);
322 //void (GLAPIENTRY *qglVertexAttrib4uivARB)(GLuint index, const GLuint *v);
323 //void (GLAPIENTRY *qglVertexAttrib4NbvARB)(GLuint index, const GLbyte *v);
324 //void (GLAPIENTRY *qglVertexAttrib4NsvARB)(GLuint index, const GLshort *v);
325 //void (GLAPIENTRY *qglVertexAttrib4NivARB)(GLuint index, const GLint *v);
326 //void (GLAPIENTRY *qglVertexAttrib4NubvARB)(GLuint index, const GLubyte *v);
327 //void (GLAPIENTRY *qglVertexAttrib4NusvARB)(GLuint index, const GLushort *v);
328 //void (GLAPIENTRY *qglVertexAttrib4NuivARB)(GLuint index, const GLuint *v);
329 void (GLAPIENTRY *qglVertexAttribPointerARB)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
330 void (GLAPIENTRY *qglEnableVertexAttribArrayARB)(GLuint index);
331 void (GLAPIENTRY *qglDisableVertexAttribArrayARB)(GLuint index);
332 void (GLAPIENTRY *qglBindAttribLocationARB)(GLhandleARB programObj, GLuint index, const GLcharARB *name);
333 void (GLAPIENTRY *qglGetActiveAttribARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
334 GLint (GLAPIENTRY *qglGetAttribLocationARB)(GLhandleARB programObj, const GLcharARB *name);
335 //void (GLAPIENTRY *qglGetVertexAttribdvARB)(GLuint index, GLenum pname, GLdouble *params);
336 //void (GLAPIENTRY *qglGetVertexAttribfvARB)(GLuint index, GLenum pname, GLfloat *params);
337 //void (GLAPIENTRY *qglGetVertexAttribivARB)(GLuint index, GLenum pname, GLint *params);
338 //void (GLAPIENTRY *qglGetVertexAttribPointervARB)(GLuint index, GLenum pname, GLvoid **pointer);
340 //GL_ARB_vertex_buffer_object
341 void (GLAPIENTRY *qglBindBufferARB) (GLenum target, GLuint buffer);
342 void (GLAPIENTRY *qglDeleteBuffersARB) (GLsizei n, const GLuint *buffers);
343 void (GLAPIENTRY *qglGenBuffersARB) (GLsizei n, GLuint *buffers);
344 GLboolean (GLAPIENTRY *qglIsBufferARB) (GLuint buffer);
345 GLvoid* (GLAPIENTRY *qglMapBufferARB) (GLenum target, GLenum access);
346 GLboolean (GLAPIENTRY *qglUnmapBufferARB) (GLenum target);
347 void (GLAPIENTRY *qglBufferDataARB) (GLenum target, GLsizeiptrARB size, const GLvoid *data, GLenum usage);
348 void (GLAPIENTRY *qglBufferSubDataARB) (GLenum target, GLintptrARB offset, GLsizeiptrARB size, const GLvoid *data);
350 //GL_EXT_framebuffer_object
351 GLboolean (GLAPIENTRY *qglIsRenderbufferEXT)(GLuint renderbuffer);
352 void (GLAPIENTRY *qglBindRenderbufferEXT)(GLenum target, GLuint renderbuffer);
353 void (GLAPIENTRY *qglDeleteRenderbuffersEXT)(GLsizei n, const GLuint *renderbuffers);
354 void (GLAPIENTRY *qglGenRenderbuffersEXT)(GLsizei n, GLuint *renderbuffers);
355 void (GLAPIENTRY *qglRenderbufferStorageEXT)(GLenum target, GLenum internalformat, GLsizei width, GLsizei height);
356 void (GLAPIENTRY *qglGetRenderbufferParameterivEXT)(GLenum target, GLenum pname, GLint *params);
357 GLboolean (GLAPIENTRY *qglIsFramebufferEXT)(GLuint framebuffer);
358 void (GLAPIENTRY *qglBindFramebufferEXT)(GLenum target, GLuint framebuffer);
359 void (GLAPIENTRY *qglDeleteFramebuffersEXT)(GLsizei n, const GLuint *framebuffers);
360 void (GLAPIENTRY *qglGenFramebuffersEXT)(GLsizei n, GLuint *framebuffers);
361 GLenum (GLAPIENTRY *qglCheckFramebufferStatusEXT)(GLenum target);
362 //void (GLAPIENTRY *qglFramebufferTexture1DEXT)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
363 void (GLAPIENTRY *qglFramebufferTexture2DEXT)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
364 void (GLAPIENTRY *qglFramebufferTexture3DEXT)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset);
365 void (GLAPIENTRY *qglFramebufferRenderbufferEXT)(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer);
366 void (GLAPIENTRY *qglGetFramebufferAttachmentParameterivEXT)(GLenum target, GLenum attachment, GLenum pname, GLint *params);
367 void (GLAPIENTRY *qglGenerateMipmapEXT)(GLenum target);
369 void (GLAPIENTRY *qglDrawBuffersARB)(GLsizei n, const GLenum *bufs);
371 void (GLAPIENTRY *qglCompressedTexImage3DARB)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const void *data);
372 void (GLAPIENTRY *qglCompressedTexImage2DARB)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void *data);
373 //void (GLAPIENTRY *qglCompressedTexImage1DARB)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLint border, GLsizei imageSize, const void *data);
374 void (GLAPIENTRY *qglCompressedTexSubImage3DARB)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void *data);
375 void (GLAPIENTRY *qglCompressedTexSubImage2DARB)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *data);
376 //void (GLAPIENTRY *qglCompressedTexSubImage1DARB)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const void *data);
377 void (GLAPIENTRY *qglGetCompressedTexImageARB)(GLenum target, GLint lod, void *img);
379 void (GLAPIENTRY *qglGenQueriesARB)(GLsizei n, GLuint *ids);
380 void (GLAPIENTRY *qglDeleteQueriesARB)(GLsizei n, const GLuint *ids);
381 GLboolean (GLAPIENTRY *qglIsQueryARB)(GLuint qid);
382 void (GLAPIENTRY *qglBeginQueryARB)(GLenum target, GLuint qid);
383 void (GLAPIENTRY *qglEndQueryARB)(GLenum target);
384 void (GLAPIENTRY *qglGetQueryivARB)(GLenum target, GLenum pname, GLint *params);
385 void (GLAPIENTRY *qglGetQueryObjectivARB)(GLuint qid, GLenum pname, GLint *params);
386 void (GLAPIENTRY *qglGetQueryObjectuivARB)(GLuint qid, GLenum pname, GLuint *params);
389 #define sscanf sscanf_s
392 int GL_CheckExtension(const char *minglver_or_ext, const dllfunction_t *funcs, const char *disableparm, int silent)
395 const dllfunction_t *func;
396 struct { int major, minor; } min_version, curr_version;
397 char extstr[MAX_INPUTLINE];
400 if(sscanf(minglver_or_ext, "%d.%d", &min_version.major, &min_version.minor) == 2)
401 ext = 0; // opengl version
402 else if(minglver_or_ext[0] != toupper(minglver_or_ext[0]))
403 ext = -1; // pseudo name
405 ext = 1; // extension name
408 Con_DPrintf("checking for %s... ", minglver_or_ext);
410 Con_DPrintf("checking for OpenGL %s core features... ", minglver_or_ext);
412 for (func = funcs;func && func->name;func++)
413 *func->funcvariable = NULL;
415 if (disableparm && (COM_CheckParm(disableparm) || COM_CheckParm("-safe")))
417 Con_DPrint("disabled by commandline\n");
421 if (ext == 1) // opengl extension
423 if (!strstr(gl_extensions ? gl_extensions : "", minglver_or_ext) && !strstr(gl_platformextensions ? gl_platformextensions : "", minglver_or_ext))
425 Con_DPrint("not detected\n");
430 if(ext == 0) // opengl version
432 if (sscanf(gl_version, "%d.%d", &curr_version.major, &curr_version.minor) < 2)
433 curr_version.major = curr_version.minor = 1;
435 if (curr_version.major < min_version.major || (curr_version.major == min_version.major && curr_version.minor < min_version.minor))
437 Con_DPrintf("not detected (OpenGL %d.%d loaded)\n", curr_version.major, curr_version.minor);
442 for (func = funcs;func && func->name != NULL;func++)
444 // Con_DPrintf("\n %s... ", func->name);
446 // functions are cleared before all the extensions are evaluated
447 if (!(*func->funcvariable = (void *) GL_GetProcAddress(func->name)))
450 Con_DPrintf("%s is missing function \"%s\" - broken driver!\n", minglver_or_ext, func->name);
452 Con_Printf("OpenGL %s core features are missing function \"%s\" - broken driver!\n", minglver_or_ext, func->name);
456 // delay the return so it prints all missing functions
459 // VorteX: add to found extension list
460 dpsnprintf(extstr, sizeof(extstr), "%s %s ", gl_info_extensions.string, minglver_or_ext);
461 Cvar_SetQuick(&gl_info_extensions, extstr);
463 Con_DPrint("enabled\n");
467 static dllfunction_t opengl110funcs[] =
469 {"glClearColor", (void **) &qglClearColor},
470 {"glClear", (void **) &qglClear},
471 {"glAlphaFunc", (void **) &qglAlphaFunc},
472 {"glBlendFunc", (void **) &qglBlendFunc},
473 {"glCullFace", (void **) &qglCullFace},
474 {"glDrawBuffer", (void **) &qglDrawBuffer},
475 {"glReadBuffer", (void **) &qglReadBuffer},
476 {"glEnable", (void **) &qglEnable},
477 {"glDisable", (void **) &qglDisable},
478 {"glIsEnabled", (void **) &qglIsEnabled},
479 {"glEnableClientState", (void **) &qglEnableClientState},
480 {"glDisableClientState", (void **) &qglDisableClientState},
481 {"glGetBooleanv", (void **) &qglGetBooleanv},
482 {"glGetDoublev", (void **) &qglGetDoublev},
483 {"glGetFloatv", (void **) &qglGetFloatv},
484 {"glGetIntegerv", (void **) &qglGetIntegerv},
485 {"glGetError", (void **) &qglGetError},
486 {"glGetString", (void **) &qglGetString},
487 {"glFinish", (void **) &qglFinish},
488 {"glFlush", (void **) &qglFlush},
489 {"glClearDepth", (void **) &qglClearDepth},
490 {"glDepthFunc", (void **) &qglDepthFunc},
491 {"glDepthMask", (void **) &qglDepthMask},
492 {"glDepthRange", (void **) &qglDepthRange},
493 {"glDrawElements", (void **) &qglDrawElements},
494 {"glDrawArrays", (void **) &qglDrawArrays},
495 {"glColorMask", (void **) &qglColorMask},
496 {"glVertexPointer", (void **) &qglVertexPointer},
497 {"glNormalPointer", (void **) &qglNormalPointer},
498 {"glColorPointer", (void **) &qglColorPointer},
499 {"glTexCoordPointer", (void **) &qglTexCoordPointer},
500 {"glArrayElement", (void **) &qglArrayElement},
501 {"glColor4ub", (void **) &qglColor4ub},
502 {"glColor4f", (void **) &qglColor4f},
503 {"glTexCoord1f", (void **) &qglTexCoord1f},
504 {"glTexCoord2f", (void **) &qglTexCoord2f},
505 {"glTexCoord3f", (void **) &qglTexCoord3f},
506 {"glTexCoord4f", (void **) &qglTexCoord4f},
507 {"glVertex2f", (void **) &qglVertex2f},
508 {"glVertex3f", (void **) &qglVertex3f},
509 {"glVertex4f", (void **) &qglVertex4f},
510 {"glBegin", (void **) &qglBegin},
511 {"glEnd", (void **) &qglEnd},
512 //[515]: added on 29.07.2005
513 {"glLineWidth", (void**) &qglLineWidth},
514 {"glPointSize", (void**) &qglPointSize},
516 {"glMatrixMode", (void **) &qglMatrixMode},
517 // {"glOrtho", (void **) &qglOrtho},
518 // {"glFrustum", (void **) &qglFrustum},
519 {"glViewport", (void **) &qglViewport},
520 // {"glPushMatrix", (void **) &qglPushMatrix},
521 // {"glPopMatrix", (void **) &qglPopMatrix},
522 {"glLoadIdentity", (void **) &qglLoadIdentity},
523 // {"glLoadMatrixd", (void **) &qglLoadMatrixd},
524 {"glLoadMatrixf", (void **) &qglLoadMatrixf},
525 // {"glMultMatrixd", (void **) &qglMultMatrixd},
526 // {"glMultMatrixf", (void **) &qglMultMatrixf},
527 // {"glRotated", (void **) &qglRotated},
528 // {"glRotatef", (void **) &qglRotatef},
529 // {"glScaled", (void **) &qglScaled},
530 // {"glScalef", (void **) &qglScalef},
531 // {"glTranslated", (void **) &qglTranslated},
532 // {"glTranslatef", (void **) &qglTranslatef},
533 {"glReadPixels", (void **) &qglReadPixels},
534 {"glStencilFunc", (void **) &qglStencilFunc},
535 {"glStencilMask", (void **) &qglStencilMask},
536 {"glStencilOp", (void **) &qglStencilOp},
537 {"glClearStencil", (void **) &qglClearStencil},
538 {"glTexEnvf", (void **) &qglTexEnvf},
539 {"glTexEnvfv", (void **) &qglTexEnvfv},
540 {"glTexEnvi", (void **) &qglTexEnvi},
541 {"glTexParameterf", (void **) &qglTexParameterf},
542 {"glTexParameterfv", (void **) &qglTexParameterfv},
543 {"glTexParameteri", (void **) &qglTexParameteri},
544 {"glGetTexImage", (void **) &qglGetTexImage},
545 {"glGetTexParameterfv", (void **) &qglGetTexParameterfv},
546 {"glGetTexParameteriv", (void **) &qglGetTexParameteriv},
547 {"glGetTexLevelParameterfv", (void **) &qglGetTexLevelParameterfv},
548 {"glGetTexLevelParameteriv", (void **) &qglGetTexLevelParameteriv},
549 {"glHint", (void **) &qglHint},
550 // {"glPixelStoref", (void **) &qglPixelStoref},
551 {"glPixelStorei", (void **) &qglPixelStorei},
552 {"glGenTextures", (void **) &qglGenTextures},
553 {"glDeleteTextures", (void **) &qglDeleteTextures},
554 {"glBindTexture", (void **) &qglBindTexture},
555 // {"glPrioritizeTextures", (void **) &qglPrioritizeTextures},
556 // {"glAreTexturesResident", (void **) &qglAreTexturesResident},
557 // {"glIsTexture", (void **) &qglIsTexture},
558 // {"glTexImage1D", (void **) &qglTexImage1D},
559 {"glTexImage2D", (void **) &qglTexImage2D},
560 // {"glTexSubImage1D", (void **) &qglTexSubImage1D},
561 {"glTexSubImage2D", (void **) &qglTexSubImage2D},
562 // {"glCopyTexImage1D", (void **) &qglCopyTexImage1D},
563 {"glCopyTexImage2D", (void **) &qglCopyTexImage2D},
564 // {"glCopyTexSubImage1D", (void **) &qglCopyTexSubImage1D},
565 {"glCopyTexSubImage2D", (void **) &qglCopyTexSubImage2D},
566 {"glScissor", (void **) &qglScissor},
567 {"glPolygonOffset", (void **) &qglPolygonOffset},
568 {"glPolygonMode", (void **) &qglPolygonMode},
569 {"glPolygonStipple", (void **) &qglPolygonStipple},
570 // {"glClipPlane", (void **) &qglClipPlane},
571 // {"glGetClipPlane", (void **) &qglGetClipPlane},
575 static dllfunction_t drawrangeelementsfuncs[] =
577 {"glDrawRangeElements", (void **) &qglDrawRangeElements},
581 static dllfunction_t drawrangeelementsextfuncs[] =
583 {"glDrawRangeElementsEXT", (void **) &qglDrawRangeElementsEXT},
587 static dllfunction_t multitexturefuncs[] =
589 {"glMultiTexCoord1fARB", (void **) &qglMultiTexCoord1f},
590 {"glMultiTexCoord2fARB", (void **) &qglMultiTexCoord2f},
591 {"glMultiTexCoord3fARB", (void **) &qglMultiTexCoord3f},
592 {"glMultiTexCoord4fARB", (void **) &qglMultiTexCoord4f},
593 {"glActiveTextureARB", (void **) &qglActiveTexture},
594 {"glClientActiveTextureARB", (void **) &qglClientActiveTexture},
598 static dllfunction_t texture3dextfuncs[] =
600 {"glTexImage3DEXT", (void **) &qglTexImage3D},
601 {"glTexSubImage3DEXT", (void **) &qglTexSubImage3D},
602 {"glCopyTexSubImage3DEXT", (void **) &qglCopyTexSubImage3D},
606 static dllfunction_t atiseparatestencilfuncs[] =
608 {"glStencilOpSeparateATI", (void **) &qglStencilOpSeparate},
609 {"glStencilFuncSeparateATI", (void **) &qglStencilFuncSeparate},
613 static dllfunction_t gl2separatestencilfuncs[] =
615 {"glStencilOpSeparate", (void **) &qglStencilOpSeparate},
616 {"glStencilFuncSeparate", (void **) &qglStencilFuncSeparate},
620 static dllfunction_t stenciltwosidefuncs[] =
622 {"glActiveStencilFaceEXT", (void **) &qglActiveStencilFaceEXT},
626 static dllfunction_t blendequationfuncs[] =
628 {"glBlendEquationEXT", (void **) &qglBlendEquationEXT},
632 static dllfunction_t shaderobjectsfuncs[] =
634 {"glDeleteObjectARB", (void **) &qglDeleteObjectARB},
635 {"glGetHandleARB", (void **) &qglGetHandleARB},
636 {"glDetachObjectARB", (void **) &qglDetachObjectARB},
637 {"glCreateShaderObjectARB", (void **) &qglCreateShaderObjectARB},
638 {"glShaderSourceARB", (void **) &qglShaderSourceARB},
639 {"glCompileShaderARB", (void **) &qglCompileShaderARB},
640 {"glCreateProgramObjectARB", (void **) &qglCreateProgramObjectARB},
641 {"glAttachObjectARB", (void **) &qglAttachObjectARB},
642 {"glLinkProgramARB", (void **) &qglLinkProgramARB},
643 {"glUseProgramObjectARB", (void **) &qglUseProgramObjectARB},
644 {"glValidateProgramARB", (void **) &qglValidateProgramARB},
645 {"glUniform1fARB", (void **) &qglUniform1fARB},
646 {"glUniform2fARB", (void **) &qglUniform2fARB},
647 {"glUniform3fARB", (void **) &qglUniform3fARB},
648 {"glUniform4fARB", (void **) &qglUniform4fARB},
649 {"glUniform1iARB", (void **) &qglUniform1iARB},
650 {"glUniform2iARB", (void **) &qglUniform2iARB},
651 {"glUniform3iARB", (void **) &qglUniform3iARB},
652 {"glUniform4iARB", (void **) &qglUniform4iARB},
653 {"glUniform1fvARB", (void **) &qglUniform1fvARB},
654 {"glUniform2fvARB", (void **) &qglUniform2fvARB},
655 {"glUniform3fvARB", (void **) &qglUniform3fvARB},
656 {"glUniform4fvARB", (void **) &qglUniform4fvARB},
657 {"glUniform1ivARB", (void **) &qglUniform1ivARB},
658 {"glUniform2ivARB", (void **) &qglUniform2ivARB},
659 {"glUniform3ivARB", (void **) &qglUniform3ivARB},
660 {"glUniform4ivARB", (void **) &qglUniform4ivARB},
661 {"glUniformMatrix2fvARB", (void **) &qglUniformMatrix2fvARB},
662 {"glUniformMatrix3fvARB", (void **) &qglUniformMatrix3fvARB},
663 {"glUniformMatrix4fvARB", (void **) &qglUniformMatrix4fvARB},
664 {"glGetObjectParameterfvARB", (void **) &qglGetObjectParameterfvARB},
665 {"glGetObjectParameterivARB", (void **) &qglGetObjectParameterivARB},
666 {"glGetInfoLogARB", (void **) &qglGetInfoLogARB},
667 {"glGetAttachedObjectsARB", (void **) &qglGetAttachedObjectsARB},
668 {"glGetUniformLocationARB", (void **) &qglGetUniformLocationARB},
669 {"glGetActiveUniformARB", (void **) &qglGetActiveUniformARB},
670 {"glGetUniformfvARB", (void **) &qglGetUniformfvARB},
671 {"glGetUniformivARB", (void **) &qglGetUniformivARB},
672 {"glGetShaderSourceARB", (void **) &qglGetShaderSourceARB},
676 static dllfunction_t vertexshaderfuncs[] =
678 // {"glVertexAttrib1fARB", (void **) &qglVertexAttrib1fARB},
679 // {"glVertexAttrib1sARB", (void **) &qglVertexAttrib1sARB},
680 // {"glVertexAttrib1dARB", (void **) &qglVertexAttrib1dARB},
681 // {"glVertexAttrib2fARB", (void **) &qglVertexAttrib2fARB},
682 // {"glVertexAttrib2sARB", (void **) &qglVertexAttrib2sARB},
683 // {"glVertexAttrib2dARB", (void **) &qglVertexAttrib2dARB},
684 // {"glVertexAttrib3fARB", (void **) &qglVertexAttrib3fARB},
685 // {"glVertexAttrib3sARB", (void **) &qglVertexAttrib3sARB},
686 // {"glVertexAttrib3dARB", (void **) &qglVertexAttrib3dARB},
687 // {"glVertexAttrib4fARB", (void **) &qglVertexAttrib4fARB},
688 // {"glVertexAttrib4sARB", (void **) &qglVertexAttrib4sARB},
689 // {"glVertexAttrib4dARB", (void **) &qglVertexAttrib4dARB},
690 // {"glVertexAttrib4NubARB", (void **) &qglVertexAttrib4NubARB},
691 // {"glVertexAttrib1fvARB", (void **) &qglVertexAttrib1fvARB},
692 // {"glVertexAttrib1svARB", (void **) &qglVertexAttrib1svARB},
693 // {"glVertexAttrib1dvARB", (void **) &qglVertexAttrib1dvARB},
694 // {"glVertexAttrib2fvARB", (void **) &qglVertexAttrib1fvARB},
695 // {"glVertexAttrib2svARB", (void **) &qglVertexAttrib1svARB},
696 // {"glVertexAttrib2dvARB", (void **) &qglVertexAttrib1dvARB},
697 // {"glVertexAttrib3fvARB", (void **) &qglVertexAttrib1fvARB},
698 // {"glVertexAttrib3svARB", (void **) &qglVertexAttrib1svARB},
699 // {"glVertexAttrib3dvARB", (void **) &qglVertexAttrib1dvARB},
700 // {"glVertexAttrib4fvARB", (void **) &qglVertexAttrib1fvARB},
701 // {"glVertexAttrib4svARB", (void **) &qglVertexAttrib1svARB},
702 // {"glVertexAttrib4dvARB", (void **) &qglVertexAttrib1dvARB},
703 // {"glVertexAttrib4ivARB", (void **) &qglVertexAttrib1ivARB},
704 // {"glVertexAttrib4bvARB", (void **) &qglVertexAttrib1bvARB},
705 // {"glVertexAttrib4ubvARB", (void **) &qglVertexAttrib1ubvARB},
706 // {"glVertexAttrib4usvARB", (void **) &qglVertexAttrib1usvARB},
707 // {"glVertexAttrib4uivARB", (void **) &qglVertexAttrib1uivARB},
708 // {"glVertexAttrib4NbvARB", (void **) &qglVertexAttrib1NbvARB},
709 // {"glVertexAttrib4NsvARB", (void **) &qglVertexAttrib1NsvARB},
710 // {"glVertexAttrib4NivARB", (void **) &qglVertexAttrib1NivARB},
711 // {"glVertexAttrib4NubvARB", (void **) &qglVertexAttrib1NubvARB},
712 // {"glVertexAttrib4NusvARB", (void **) &qglVertexAttrib1NusvARB},
713 // {"glVertexAttrib4NuivARB", (void **) &qglVertexAttrib1NuivARB},
714 {"glVertexAttribPointerARB", (void **) &qglVertexAttribPointerARB},
715 {"glEnableVertexAttribArrayARB", (void **) &qglEnableVertexAttribArrayARB},
716 {"glDisableVertexAttribArrayARB", (void **) &qglDisableVertexAttribArrayARB},
717 {"glBindAttribLocationARB", (void **) &qglBindAttribLocationARB},
718 {"glGetActiveAttribARB", (void **) &qglGetActiveAttribARB},
719 {"glGetAttribLocationARB", (void **) &qglGetAttribLocationARB},
720 // {"glGetVertexAttribdvARB", (void **) &qglGetVertexAttribdvARB},
721 // {"glGetVertexAttribfvARB", (void **) &qglGetVertexAttribfvARB},
722 // {"glGetVertexAttribivARB", (void **) &qglGetVertexAttribivARB},
723 // {"glGetVertexAttribPointervARB", (void **) &qglGetVertexAttribPointervARB},
727 static dllfunction_t vbofuncs[] =
729 {"glBindBufferARB" , (void **) &qglBindBufferARB},
730 {"glDeleteBuffersARB" , (void **) &qglDeleteBuffersARB},
731 {"glGenBuffersARB" , (void **) &qglGenBuffersARB},
732 {"glIsBufferARB" , (void **) &qglIsBufferARB},
733 {"glMapBufferARB" , (void **) &qglMapBufferARB},
734 {"glUnmapBufferARB" , (void **) &qglUnmapBufferARB},
735 {"glBufferDataARB" , (void **) &qglBufferDataARB},
736 {"glBufferSubDataARB" , (void **) &qglBufferSubDataARB},
740 static dllfunction_t fbofuncs[] =
742 {"glIsRenderbufferEXT" , (void **) &qglIsRenderbufferEXT},
743 {"glBindRenderbufferEXT" , (void **) &qglBindRenderbufferEXT},
744 {"glDeleteRenderbuffersEXT" , (void **) &qglDeleteRenderbuffersEXT},
745 {"glGenRenderbuffersEXT" , (void **) &qglGenRenderbuffersEXT},
746 {"glRenderbufferStorageEXT" , (void **) &qglRenderbufferStorageEXT},
747 {"glGetRenderbufferParameterivEXT" , (void **) &qglGetRenderbufferParameterivEXT},
748 {"glIsFramebufferEXT" , (void **) &qglIsFramebufferEXT},
749 {"glBindFramebufferEXT" , (void **) &qglBindFramebufferEXT},
750 {"glDeleteFramebuffersEXT" , (void **) &qglDeleteFramebuffersEXT},
751 {"glGenFramebuffersEXT" , (void **) &qglGenFramebuffersEXT},
752 {"glCheckFramebufferStatusEXT" , (void **) &qglCheckFramebufferStatusEXT},
753 // {"glFramebufferTexture1DEXT" , (void **) &qglFramebufferTexture1DEXT},
754 {"glFramebufferTexture2DEXT" , (void **) &qglFramebufferTexture2DEXT},
755 {"glFramebufferTexture3DEXT" , (void **) &qglFramebufferTexture3DEXT},
756 {"glFramebufferRenderbufferEXT" , (void **) &qglFramebufferRenderbufferEXT},
757 {"glGetFramebufferAttachmentParameterivEXT" , (void **) &qglGetFramebufferAttachmentParameterivEXT},
758 {"glGenerateMipmapEXT" , (void **) &qglGenerateMipmapEXT},
762 static dllfunction_t texturecompressionfuncs[] =
764 {"glCompressedTexImage3DARB", (void **) &qglCompressedTexImage3DARB},
765 {"glCompressedTexImage2DARB", (void **) &qglCompressedTexImage2DARB},
766 // {"glCompressedTexImage1DARB", (void **) &qglCompressedTexImage1DARB},
767 {"glCompressedTexSubImage3DARB", (void **) &qglCompressedTexSubImage3DARB},
768 {"glCompressedTexSubImage2DARB", (void **) &qglCompressedTexSubImage2DARB},
769 // {"glCompressedTexSubImage1DARB", (void **) &qglCompressedTexSubImage1DARB},
770 {"glGetCompressedTexImageARB", (void **) &qglGetCompressedTexImageARB},
774 static dllfunction_t occlusionqueryfuncs[] =
776 {"glGenQueriesARB", (void **) &qglGenQueriesARB},
777 {"glDeleteQueriesARB", (void **) &qglDeleteQueriesARB},
778 {"glIsQueryARB", (void **) &qglIsQueryARB},
779 {"glBeginQueryARB", (void **) &qglBeginQueryARB},
780 {"glEndQueryARB", (void **) &qglEndQueryARB},
781 {"glGetQueryivARB", (void **) &qglGetQueryivARB},
782 {"glGetQueryObjectivARB", (void **) &qglGetQueryObjectivARB},
783 {"glGetQueryObjectuivARB", (void **) &qglGetQueryObjectuivARB},
787 static dllfunction_t drawbuffersfuncs[] =
789 {"glDrawBuffersARB", (void **) &qglDrawBuffersARB},
793 void VID_CheckExtensions(void)
795 // clear the extension flags
796 memset(&vid.support, 0, sizeof(vid.support));
798 // VorteX: reset extensions info cvar, it got filled by GL_CheckExtension
799 Cvar_SetQuick(&gl_info_extensions, "");
800 if (!GL_CheckExtension("1.1", opengl110funcs, NULL, false))
801 Sys_Error("OpenGL 1.1.0 functions not found");
805 Con_DPrint("Checking OpenGL extensions...\n");
807 vid.forcevbo = false;
808 vid.support.amd_texture_texture4 = GL_CheckExtension("GL_AMD_texture_texture4", NULL, "-notexture4", false);
809 vid.support.arb_depth_texture = GL_CheckExtension("GL_ARB_depth_texture", NULL, "-nodepthtexture", false);
810 vid.support.arb_draw_buffers = GL_CheckExtension("GL_ARB_draw_buffers", drawbuffersfuncs, "-nodrawbuffers", false);
811 vid.support.arb_fragment_shader = GL_CheckExtension("GL_ARB_fragment_shader", NULL, "-nofragmentshader", false);
812 vid.support.arb_multitexture = GL_CheckExtension("GL_ARB_multitexture", multitexturefuncs, "-nomtex", false);
813 vid.support.arb_occlusion_query = GL_CheckExtension("GL_ARB_occlusion_query", occlusionqueryfuncs, "-noocclusionquery", false);
814 vid.support.arb_shader_objects = GL_CheckExtension("GL_ARB_shader_objects", shaderobjectsfuncs, "-noshaderobjects", false);
815 vid.support.arb_shading_language_100 = GL_CheckExtension("GL_ARB_shading_language_100", NULL, "-noshadinglanguage100", false);
816 vid.support.arb_shadow = GL_CheckExtension("GL_ARB_shadow", NULL, "-noshadow", false);
817 vid.support.arb_texture_compression = GL_CheckExtension("GL_ARB_texture_compression", texturecompressionfuncs, "-notexturecompression", false);
818 vid.support.arb_texture_cube_map = GL_CheckExtension("GL_ARB_texture_cube_map", NULL, "-nocubemap", false);
819 vid.support.arb_texture_env_combine = GL_CheckExtension("GL_ARB_texture_env_combine", NULL, "-nocombine", false) || GL_CheckExtension("GL_EXT_texture_env_combine", NULL, "-nocombine", false);
820 vid.support.arb_texture_gather = GL_CheckExtension("GL_ARB_texture_gather", NULL, "-notexturegather", false);
821 vid.support.arb_texture_non_power_of_two = GL_CheckExtension("GL_ARB_texture_non_power_of_two", NULL, "-notexturenonpoweroftwo", false);
822 vid.support.arb_texture_rectangle = GL_CheckExtension("GL_ARB_texture_rectangle", NULL, "-norectangle", false);
823 vid.support.arb_vertex_buffer_object = GL_CheckExtension("GL_ARB_vertex_buffer_object", vbofuncs, "-novbo", false);
824 vid.support.arb_vertex_shader = GL_CheckExtension("GL_ARB_vertex_shader", vertexshaderfuncs, "-novertexshader", false);
825 vid.support.ati_separate_stencil = GL_CheckExtension("2.0", gl2separatestencilfuncs, "-noseparatestencil", true) || GL_CheckExtension("GL_ATI_separate_stencil", atiseparatestencilfuncs, "-noseparatestencil", false);
826 vid.support.ext_blend_minmax = GL_CheckExtension("GL_EXT_blend_minmax", blendequationfuncs, "-noblendminmax", false);
827 vid.support.ext_blend_subtract = GL_CheckExtension("GL_EXT_blend_subtract", blendequationfuncs, "-noblendsubtract", false);
828 vid.support.ext_draw_range_elements = GL_CheckExtension("1.2", drawrangeelementsfuncs, "-nodrawrangeelements", true) || GL_CheckExtension("GL_EXT_draw_range_elements", drawrangeelementsextfuncs, "-nodrawrangeelements", false);
829 vid.support.ext_framebuffer_object = GL_CheckExtension("GL_EXT_framebuffer_object", fbofuncs, "-nofbo", false);
830 vid.support.ext_stencil_two_side = GL_CheckExtension("GL_EXT_stencil_two_side", stenciltwosidefuncs, "-nostenciltwoside", false);
831 vid.support.ext_texture_3d = GL_CheckExtension("GL_EXT_texture3D", texture3dextfuncs, "-notexture3d", false);
832 vid.support.ext_texture_compression_s3tc = GL_CheckExtension("GL_EXT_texture_compression_s3tc", NULL, "-nos3tc", false);
833 vid.support.ext_texture_edge_clamp = GL_CheckExtension("GL_EXT_texture_edge_clamp", NULL, "-noedgeclamp", false) || GL_CheckExtension("GL_SGIS_texture_edge_clamp", NULL, "-noedgeclamp", false);
834 vid.support.ext_texture_filter_anisotropic = GL_CheckExtension("GL_EXT_texture_filter_anisotropic", NULL, "-noanisotropy", false);
835 // COMMANDLINEOPTION: GL: -noanisotropy disables GL_EXT_texture_filter_anisotropic (allows higher quality texturing)
836 // COMMANDLINEOPTION: GL: -noblendminmax disables GL_EXT_blend_minmax
837 // COMMANDLINEOPTION: GL: -noblendsubtract disables GL_EXT_blend_subtract
838 // COMMANDLINEOPTION: GL: -nocombine disables GL_ARB_texture_env_combine or GL_EXT_texture_env_combine (required for bumpmapping and faster map rendering)
839 // COMMANDLINEOPTION: GL: -nocubemap disables GL_ARB_texture_cube_map (required for bumpmapping)
840 // COMMANDLINEOPTION: GL: -nodepthtexture disables use of GL_ARB_depth_texture (required for shadowmapping)
841 // COMMANDLINEOPTION: GL: -nodrawbuffers disables use of GL_ARB_draw_buffers (required for r_shadow_deferredprepass)
842 // COMMANDLINEOPTION: GL: -nodrawrangeelements disables GL_EXT_draw_range_elements (renders faster)
843 // 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)
844 // COMMANDLINEOPTION: GL: -nofbo disables GL_EXT_framebuffer_object (which accelerates rendering), only used if GL_ARB_fragment_shader is also available
845 // COMMANDLINEOPTION: GL: -nofragmentshader disables GL_ARB_fragment_shader (allows pixel shader effects, can improve per pixel lighting performance and capabilities)
846 // COMMANDLINEOPTION: GL: -nomtex disables GL_ARB_multitexture (required for faster map rendering)
847 // COMMANDLINEOPTION: GL: -noocclusionquery disables GL_ARB_occlusion_query (which allows coronas to fade according to visibility, and potentially used for rendering optimizations)
848 // COMMANDLINEOPTION: GL: -norectangle disables GL_ARB_texture_rectangle (required for bumpmapping)
849 // COMMANDLINEOPTION: GL: -nos3tc disables GL_EXT_texture_compression_s3tc (which allows use of .dds texture caching)
850 // COMMANDLINEOPTION: GL: -noseparatestencil disables use of OpenGL2.0 glStencilOpSeparate and GL_ATI_separate_stencil extensions (which accelerate shadow rendering)
851 // COMMANDLINEOPTION: GL: -noshaderobjects disables GL_ARB_shader_objects (required for vertex shader and fragment shader)
852 // COMMANDLINEOPTION: GL: -noshadinglanguage100 disables GL_ARB_shading_language_100 (required for vertex shader and fragment shader)
853 // COMMANDLINEOPTION: GL: -noshadow disables use of GL_ARB_shadow (required for hardware shadowmap filtering)
854 // COMMANDLINEOPTION: GL: -nostenciltwoside disables GL_EXT_stencil_two_side (which accelerate shadow rendering)
855 // COMMANDLINEOPTION: GL: -notexture3d disables GL_EXT_texture3D (required for spherical lights, otherwise they render as a column)
856 // COMMANDLINEOPTION: GL: -notexture4 disables GL_AMD_texture_texture4 (which provides fetch4 sampling)
857 // COMMANDLINEOPTION: GL: -notexturecompression disables GL_ARB_texture_compression (which saves video memory if it is supported, but can also degrade image quality, see gl_texturecompression cvar documentation for more information)
858 // COMMANDLINEOPTION: GL: -notexturegather disables GL_ARB_texture_gather (which provides fetch4 sampling)
859 // COMMANDLINEOPTION: GL: -notexturenonpoweroftwo disables GL_ARB_texture_non_power_of_two (which saves video memory if it is supported, but crashes on some buggy drivers)
860 // COMMANDLINEOPTION: GL: -novbo disables GL_ARB_vertex_buffer_object (which accelerates rendering)
861 // COMMANDLINEOPTION: GL: -novertexshader disables GL_ARB_vertex_shader (allows vertex shader effects)
863 vid.maxtexturesize_2d = 0;
864 vid.maxtexturesize_3d = 0;
865 vid.maxtexturesize_cubemap = 0;
867 vid.teximageunits = 1;
868 vid.texarrayunits = 1;
869 vid.max_anisotropy = 1;
870 vid.maxdrawbuffers = 1;
872 if (vid.support.arb_draw_buffers)
873 qglGetIntegerv(GL_MAX_DRAW_BUFFERS_ARB, (GLint*)&vid.maxdrawbuffers);
875 // disable non-power-of-two textures on Radeon X1600 and other cards that do not accelerate it with some filtering modes / repeat modes that we use
876 // we detect these cards by checking if the hardware supports vertex texture fetch (Geforce6 does, Radeon X1600 does not, all GL3-class hardware does)
877 if(vid.support.arb_texture_non_power_of_two)
880 if (vid.support.arb_vertex_shader)
881 qglGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB, &val);CHECKGLERROR
883 vid.support.arb_texture_non_power_of_two = false;
886 // we don't care if it's an extension or not, they are identical functions, so keep it simple in the rendering code
887 if (qglDrawRangeElements == NULL)
888 qglDrawRangeElements = qglDrawRangeElementsEXT;
890 qglGetIntegerv(GL_MAX_TEXTURE_SIZE, (GLint*)&vid.maxtexturesize_2d);
891 if (vid.support.ext_texture_filter_anisotropic)
892 qglGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, (GLint*)&vid.max_anisotropy);
893 if (vid.support.arb_texture_cube_map)
894 qglGetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, (GLint*)&vid.maxtexturesize_cubemap);
895 if (vid.support.arb_texture_rectangle)
896 qglGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE_ARB, (GLint*)&vid.maxtexturesize_rectangle);
897 if (vid.support.ext_texture_3d)
898 qglGetIntegerv(GL_MAX_3D_TEXTURE_SIZE, (GLint*)&vid.maxtexturesize_3d);
900 // verify that 3d textures are really supported
901 if (vid.support.ext_texture_3d && vid.maxtexturesize_3d < 32)
903 vid.support.ext_texture_3d = false;
904 Con_Printf("GL_EXT_texture3D reported bogus GL_MAX_3D_TEXTURE_SIZE, disabled\n");
907 vid.texunits = vid.teximageunits = vid.texarrayunits = 1;
908 if (vid.support.arb_multitexture)
909 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, (GLint*)&vid.texunits);
910 if (vid_gl20.integer && vid.support.arb_fragment_shader && vid.support.arb_vertex_shader && vid.support.arb_shader_objects)
912 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, (GLint*)&vid.texunits);
913 qglGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS_ARB, (int *)&vid.teximageunits);CHECKGLERROR
914 qglGetIntegerv(GL_MAX_TEXTURE_COORDS_ARB, (int *)&vid.texarrayunits);CHECKGLERROR
915 vid.texunits = bound(4, vid.texunits, MAX_TEXTUREUNITS);
916 vid.teximageunits = bound(16, vid.teximageunits, MAX_TEXTUREUNITS);
917 vid.texarrayunits = bound(8, vid.texarrayunits, MAX_TEXTUREUNITS);
918 Con_DPrintf("Using GL2.0 rendering path - %i texture matrix, %i texture images, %i texcoords%s\n", vid.texunits, vid.teximageunits, vid.texarrayunits, vid.support.ext_framebuffer_object ? ", shadowmapping supported" : "");
919 vid.renderpath = RENDERPATH_GL20;
922 else if (vid_cggl.integer && (vid.cgcontext = cgCreateContext()))
925 vid.teximageunits = 16;
926 vid.texarrayunits = 8;
927 Con_DPrintf("Using NVIDIA Cg rendering path - %i texture matrix, %i texture images, %i texcoords%s\n", vid.texunits, vid.teximageunits, vid.texarrayunits, vid.support.ext_framebuffer_object ? ", shadowmapping supported" : "");
928 vid.renderpath = RENDERPATH_CGGL;
931 else if (vid.support.arb_texture_env_combine && vid.texunits >= 2 && vid_gl13.integer)
933 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, (GLint*)&vid.texunits);
934 vid.texunits = bound(1, vid.texunits, MAX_TEXTUREUNITS);
935 vid.teximageunits = vid.texunits;
936 vid.texarrayunits = vid.texunits;
937 Con_DPrintf("Using GL1.3 rendering path - %i texture units, single pass rendering\n", vid.texunits);
938 vid.renderpath = RENDERPATH_GL13;
942 vid.texunits = bound(1, vid.texunits, MAX_TEXTUREUNITS);
943 vid.teximageunits = vid.texunits;
944 vid.texarrayunits = vid.texunits;
945 Con_DPrintf("Using GL1.1 rendering path - %i texture units, two pass rendering\n", vid.texunits);
946 vid.renderpath = RENDERPATH_GL11;
949 // VorteX: set other info (maybe place them in VID_InitMode?)
950 Cvar_SetQuick(&gl_info_vendor, gl_vendor);
951 Cvar_SetQuick(&gl_info_renderer, gl_renderer);
952 Cvar_SetQuick(&gl_info_version, gl_version);
953 Cvar_SetQuick(&gl_info_platform, gl_platform ? gl_platform : "");
954 Cvar_SetQuick(&gl_info_driver, gl_driver);
957 void Force_CenterView_f (void)
959 cl.viewangles[PITCH] = 0;
962 static int gamma_forcenextframe = false;
963 static float cachegamma, cachebrightness, cachecontrast, cacheblack[3], cachegrey[3], cachewhite[3], cachecontrastboost;
964 static int cachecolorenable, cachehwgamma;
966 unsigned int vid_gammatables_serial = 0; // so other subsystems can poll if gamma parameters have changed
967 qboolean vid_gammatables_trivial = true;
968 void VID_BuildGammaTables(unsigned short *ramps, int rampsize)
970 if (cachecolorenable)
972 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[0]), cachewhite[0], cacheblack[0], cachecontrastboost, ramps, rampsize);
973 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[1]), cachewhite[1], cacheblack[1], cachecontrastboost, ramps + rampsize, rampsize);
974 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[2]), cachewhite[2], cacheblack[2], cachecontrastboost, ramps + rampsize*2, rampsize);
978 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, cachecontrastboost, ramps, rampsize);
979 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, cachecontrastboost, ramps + rampsize, rampsize);
980 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, cachecontrastboost, ramps + rampsize*2, rampsize);
983 // LordHavoc: this code came from Ben Winslow and Zinx Verituse, I have
984 // immensely butchered it to work with variable framerates and fit in with
985 // the rest of darkplaces.
986 if (v_psycho.integer)
990 static float n[3], nd[3], nt[3];
991 static int init = true;
992 unsigned short *ramp;
993 gamma_forcenextframe = true;
997 for (x = 0;x < 3;x++)
999 n[x] = lhrandom(0, 1);
1000 nd[x] = (rand()&1)?-0.25:0.25;
1001 nt[x] = lhrandom(1, 8.2);
1005 for (x = 0;x < 3;x++)
1007 nt[x] -= cl.realframetime;
1011 nt[x] += lhrandom(1, 8.2);
1013 n[x] += nd[x] * cl.realframetime;
1014 n[x] -= floor(n[x]);
1017 for (x = 0, ramp = ramps;x < 3;x++)
1018 for (y = 0, t = n[x] - 0.75f;y < rampsize;y++, t += 0.75f * (2.0f / rampsize))
1019 *ramp++ = (unsigned short)(cos(t*(M_PI*2.0)) * 32767.0f + 32767.0f);
1023 void VID_UpdateGamma(qboolean force, int rampsize)
1028 qboolean gamma_changed = false;
1030 // LordHavoc: don't mess with gamma tables if running dedicated
1031 if (cls.state == ca_dedicated)
1034 wantgamma = v_hwgamma.integer;
1035 switch(vid.renderpath)
1037 case RENDERPATH_GL20:
1038 case RENDERPATH_CGGL:
1039 if (v_glslgamma.integer)
1042 case RENDERPATH_GL13:
1043 case RENDERPATH_GL11:
1046 if(!vid_activewindow)
1048 #define BOUNDCVAR(cvar, m1, m2) c = &(cvar);f = bound(m1, c->value, m2);if (c->value != f) Cvar_SetValueQuick(c, f);
1049 BOUNDCVAR(v_gamma, 0.1, 5);
1050 BOUNDCVAR(v_contrast, 1, 5);
1051 BOUNDCVAR(v_brightness, 0, 0.8);
1052 //BOUNDCVAR(v_contrastboost, 0.0625, 16);
1053 BOUNDCVAR(v_color_black_r, 0, 0.8);
1054 BOUNDCVAR(v_color_black_g, 0, 0.8);
1055 BOUNDCVAR(v_color_black_b, 0, 0.8);
1056 BOUNDCVAR(v_color_grey_r, 0, 0.95);
1057 BOUNDCVAR(v_color_grey_g, 0, 0.95);
1058 BOUNDCVAR(v_color_grey_b, 0, 0.95);
1059 BOUNDCVAR(v_color_white_r, 1, 5);
1060 BOUNDCVAR(v_color_white_g, 1, 5);
1061 BOUNDCVAR(v_color_white_b, 1, 5);
1064 // set vid_gammatables_trivial to true if the current settings would generate the identity gamma table
1065 vid_gammatables_trivial = false;
1066 if(v_psycho.integer == 0)
1067 if(v_contrastboost.value == 1)
1069 if(v_color_enable.integer)
1071 if(v_color_black_r.value == 0)
1072 if(v_color_black_g.value == 0)
1073 if(v_color_black_b.value == 0)
1074 if(fabs(v_color_grey_r.value - 0.5) < 1e-6)
1075 if(fabs(v_color_grey_g.value - 0.5) < 1e-6)
1076 if(fabs(v_color_grey_b.value - 0.5) < 1e-6)
1077 if(v_color_white_r.value == 1)
1078 if(v_color_white_g.value == 1)
1079 if(v_color_white_b.value == 1)
1080 vid_gammatables_trivial = true;
1084 if(v_gamma.value == 1)
1085 if(v_contrast.value == 1)
1086 if(v_brightness.value == 0)
1087 vid_gammatables_trivial = true;
1091 #define GAMMACHECK(cache, value) if (cache != (value)) gamma_changed = true;cache = (value)
1092 if(v_psycho.integer)
1093 gamma_changed = true;
1094 GAMMACHECK(cachegamma , v_gamma.value);
1095 GAMMACHECK(cachecontrast , v_contrast.value);
1096 GAMMACHECK(cachebrightness , v_brightness.value);
1097 GAMMACHECK(cachecontrastboost, v_contrastboost.value);
1098 GAMMACHECK(cachecolorenable, v_color_enable.integer);
1099 GAMMACHECK(cacheblack[0] , v_color_black_r.value);
1100 GAMMACHECK(cacheblack[1] , v_color_black_g.value);
1101 GAMMACHECK(cacheblack[2] , v_color_black_b.value);
1102 GAMMACHECK(cachegrey[0] , v_color_grey_r.value);
1103 GAMMACHECK(cachegrey[1] , v_color_grey_g.value);
1104 GAMMACHECK(cachegrey[2] , v_color_grey_b.value);
1105 GAMMACHECK(cachewhite[0] , v_color_white_r.value);
1106 GAMMACHECK(cachewhite[1] , v_color_white_g.value);
1107 GAMMACHECK(cachewhite[2] , v_color_white_b.value);
1110 ++vid_gammatables_serial;
1112 GAMMACHECK(cachehwgamma , wantgamma);
1115 if (!force && !gamma_forcenextframe && !gamma_changed)
1118 gamma_forcenextframe = false;
1122 if (!vid_usinghwgamma)
1124 vid_usinghwgamma = true;
1125 if (vid_gammarampsize != rampsize || !vid_gammaramps)
1127 vid_gammarampsize = rampsize;
1129 Z_Free(vid_gammaramps);
1130 vid_gammaramps = (unsigned short *)Z_Malloc(6 * vid_gammarampsize * sizeof(unsigned short));
1131 vid_systemgammaramps = vid_gammaramps + 3 * vid_gammarampsize;
1133 VID_GetGamma(vid_systemgammaramps, vid_gammarampsize);
1136 VID_BuildGammaTables(vid_gammaramps, vid_gammarampsize);
1138 // set vid_hardwaregammasupported to true if VID_SetGamma succeeds, OR if vid_hwgamma is >= 2 (forced gamma - ignores driver return value)
1139 Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_gammaramps, vid_gammarampsize) || cachehwgamma >= 2);
1140 // if custom gamma ramps failed (Windows stupidity), restore to system gamma
1141 if(!vid_hardwaregammasupported.integer)
1143 if (vid_usinghwgamma)
1145 vid_usinghwgamma = false;
1146 VID_SetGamma(vid_systemgammaramps, vid_gammarampsize);
1152 if (vid_usinghwgamma)
1154 vid_usinghwgamma = false;
1155 VID_SetGamma(vid_systemgammaramps, vid_gammarampsize);
1160 void VID_RestoreSystemGamma(void)
1162 if (vid_usinghwgamma)
1164 vid_usinghwgamma = false;
1165 Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_systemgammaramps, vid_gammarampsize));
1166 // force gamma situation to be reexamined next frame
1167 gamma_forcenextframe = true;
1171 void VID_Shared_Init(void)
1173 Cvar_RegisterVariable(&vid_hardwaregammasupported);
1174 Cvar_RegisterVariable(&gl_info_vendor);
1175 Cvar_RegisterVariable(&gl_info_renderer);
1176 Cvar_RegisterVariable(&gl_info_version);
1177 Cvar_RegisterVariable(&gl_info_extensions);
1178 Cvar_RegisterVariable(&gl_info_platform);
1179 Cvar_RegisterVariable(&gl_info_driver);
1180 Cvar_RegisterVariable(&v_gamma);
1181 Cvar_RegisterVariable(&v_brightness);
1182 Cvar_RegisterVariable(&v_contrastboost);
1183 Cvar_RegisterVariable(&v_contrast);
1185 Cvar_RegisterVariable(&v_color_enable);
1186 Cvar_RegisterVariable(&v_color_black_r);
1187 Cvar_RegisterVariable(&v_color_black_g);
1188 Cvar_RegisterVariable(&v_color_black_b);
1189 Cvar_RegisterVariable(&v_color_grey_r);
1190 Cvar_RegisterVariable(&v_color_grey_g);
1191 Cvar_RegisterVariable(&v_color_grey_b);
1192 Cvar_RegisterVariable(&v_color_white_r);
1193 Cvar_RegisterVariable(&v_color_white_g);
1194 Cvar_RegisterVariable(&v_color_white_b);
1196 Cvar_RegisterVariable(&v_hwgamma);
1197 Cvar_RegisterVariable(&v_glslgamma);
1199 Cvar_RegisterVariable(&v_psycho);
1201 Cvar_RegisterVariable(&vid_fullscreen);
1202 Cvar_RegisterVariable(&vid_width);
1203 Cvar_RegisterVariable(&vid_height);
1204 Cvar_RegisterVariable(&vid_bitsperpixel);
1205 Cvar_RegisterVariable(&vid_samples);
1206 Cvar_RegisterVariable(&vid_refreshrate);
1207 Cvar_RegisterVariable(&vid_userefreshrate);
1208 Cvar_RegisterVariable(&vid_stereobuffer);
1209 Cvar_RegisterVariable(&vid_vsync);
1210 Cvar_RegisterVariable(&vid_mouse);
1211 Cvar_RegisterVariable(&vid_grabkeyboard);
1212 Cvar_RegisterVariable(&vid_stick_mouse);
1213 Cvar_RegisterVariable(&vid_resizable);
1214 Cvar_RegisterVariable(&vid_minwidth);
1215 Cvar_RegisterVariable(&vid_minheight);
1216 Cvar_RegisterVariable(&vid_gl13);
1217 Cvar_RegisterVariable(&vid_gl20);
1219 Cvar_RegisterVariable(&vid_cggl);
1221 Cvar_RegisterVariable(&gl_finish);
1222 Cmd_AddCommand("force_centerview", Force_CenterView_f, "recenters view (stops looking up/down)");
1223 Cmd_AddCommand("vid_restart", VID_Restart_f, "restarts video system (closes and reopens the window, restarts renderer)");
1226 int VID_Mode(int fullscreen, int width, int height, int bpp, float refreshrate, int stereobuffer, int samples)
1229 memset(&mode, 0, sizeof(mode));
1230 mode.fullscreen = fullscreen;
1232 mode.height = height;
1233 mode.bitsperpixel = bpp;
1234 mode.refreshrate = vid_userefreshrate.integer ? max(1, refreshrate) : 0;
1235 mode.userefreshrate = vid_userefreshrate.integer;
1236 mode.stereobuffer = stereobuffer;
1237 mode.samples = samples;
1238 cl_ignoremousemoves = 2;
1239 if (VID_InitMode(&mode))
1241 // accept the (possibly modified) mode
1243 vid.fullscreen = vid.mode.fullscreen;
1244 vid.width = vid.mode.width;
1245 vid.height = vid.mode.height;
1246 vid.bitsperpixel = vid.mode.bitsperpixel;
1247 vid.refreshrate = vid.mode.refreshrate;
1248 vid.userefreshrate = vid.mode.userefreshrate;
1249 vid.stereobuffer = vid.mode.stereobuffer;
1250 vid.samples = vid.mode.samples;
1251 vid.stencil = vid.mode.bitsperpixel > 16;
1252 Con_Printf("Video Mode: %s %dx%dx%dx%.2fhz%s%s\n", mode.fullscreen ? "fullscreen" : "window", mode.width, mode.height, mode.bitsperpixel, mode.refreshrate, mode.stereobuffer ? " stereo" : "", mode.samples > 1 ? va(" (%ix AA)", mode.samples) : "");
1254 Cvar_SetValueQuick(&vid_fullscreen, vid.mode.fullscreen);
1255 Cvar_SetValueQuick(&vid_width, vid.mode.width);
1256 Cvar_SetValueQuick(&vid_height, vid.mode.height);
1257 Cvar_SetValueQuick(&vid_bitsperpixel, vid.mode.bitsperpixel);
1258 Cvar_SetValueQuick(&vid_samples, vid.mode.samples);
1259 if(vid_userefreshrate.integer)
1260 Cvar_SetValueQuick(&vid_refreshrate, vid.mode.refreshrate);
1261 Cvar_SetValueQuick(&vid_stereobuffer, vid.mode.stereobuffer);
1269 static void VID_OpenSystems(void)
1275 static void VID_CloseSystems(void)
1278 R_Modules_Shutdown();
1281 qboolean vid_commandlinecheck = true;
1283 void VID_Restart_f(void)
1285 // don't crash if video hasn't started yet
1286 if (vid_commandlinecheck)
1289 Con_Printf("VID_Restart: changing from %s %dx%dx%dbpp%s%s, to %s %dx%dx%dbpp%s%s.\n",
1290 vid.mode.fullscreen ? "fullscreen" : "window", vid.mode.width, vid.mode.height, vid.mode.bitsperpixel, vid.mode.fullscreen && vid.mode.userefreshrate ? va("x%.2fhz", vid.mode.refreshrate) : "", vid.mode.samples > 1 ? va(" (%ix AA)", vid.mode.samples) : "",
1291 vid_fullscreen.integer ? "fullscreen" : "window", vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_fullscreen.integer && vid_userefreshrate.integer ? va("x%.2fhz", vid_refreshrate.value) : "", vid_samples.integer > 1 ? va(" (%ix AA)", vid_samples.integer) : "");
1294 if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.value, vid_stereobuffer.integer, vid_samples.integer))
1296 Con_Print("Video mode change failed\n");
1297 if (!VID_Mode(vid.mode.fullscreen, vid.mode.width, vid.mode.height, vid.mode.bitsperpixel, vid.mode.refreshrate, vid.mode.stereobuffer, vid.mode.samples))
1298 Sys_Error("Unable to restore to last working video mode");
1303 const char *vidfallbacks[][2] =
1305 {"vid_stereobuffer", "0"},
1306 {"vid_samples", "1"},
1307 {"vid_userefreshrate", "0"},
1308 {"vid_width", "640"},
1309 {"vid_height", "480"},
1310 {"vid_bitsperpixel", "16"},
1314 // this is only called once by Host_StartVideo
1315 void VID_Start(void)
1317 int i, width, height, success;
1318 if (vid_commandlinecheck)
1320 // interpret command-line parameters
1321 vid_commandlinecheck = false;
1322 // COMMANDLINEOPTION: Video: -window performs +vid_fullscreen 0
1323 if (COM_CheckParm("-window") || COM_CheckParm("-safe"))
1324 Cvar_SetValueQuick(&vid_fullscreen, false);
1325 // COMMANDLINEOPTION: Video: -fullscreen performs +vid_fullscreen 1
1326 if (COM_CheckParm("-fullscreen"))
1327 Cvar_SetValueQuick(&vid_fullscreen, true);
1330 // 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)
1331 if ((i = COM_CheckParm("-width")) != 0)
1332 width = atoi(com_argv[i+1]);
1333 // 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)
1334 if ((i = COM_CheckParm("-height")) != 0)
1335 height = atoi(com_argv[i+1]);
1337 width = height * 4 / 3;
1339 height = width * 3 / 4;
1341 Cvar_SetValueQuick(&vid_width, width);
1343 Cvar_SetValueQuick(&vid_height, height);
1344 // COMMANDLINEOPTION: Video: -bpp <bits> performs +vid_bitsperpixel <bits> (example -bpp 32 or -bpp 16)
1345 if ((i = COM_CheckParm("-bpp")) != 0)
1346 Cvar_SetQuick(&vid_bitsperpixel, com_argv[i+1]);
1349 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.value, vid_stereobuffer.integer, vid_samples.integer);
1352 Con_Print("Desired video mode fail, trying fallbacks...\n");
1353 for (i = 0;!success && vidfallbacks[i][0] != NULL;i++)
1355 Cvar_Set(vidfallbacks[i][0], vidfallbacks[i][1]);
1356 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.value, vid_stereobuffer.integer, vid_samples.integer);
1359 Sys_Error("Video modes failed");
1364 int VID_SortModes_Compare(const void *a_, const void *b_)
1366 vid_mode_t *a = (vid_mode_t *) a_;
1367 vid_mode_t *b = (vid_mode_t *) b_;
1368 if(a->width > b->width)
1370 if(a->width < b->width)
1372 if(a->height > b->height)
1374 if(a->height < b->height)
1376 if(a->refreshrate > b->refreshrate)
1378 if(a->refreshrate < b->refreshrate)
1384 if(a->pixelheight_num * b->pixelheight_denom > a->pixelheight_denom * b->pixelheight_num)
1386 if(a->pixelheight_num * b->pixelheight_denom < a->pixelheight_denom * b->pixelheight_num)
1390 size_t VID_SortModes(vid_mode_t *modes, size_t count, qboolean usebpp, qboolean userefreshrate, qboolean useaspect)
1396 qsort(modes, count, sizeof(*modes), VID_SortModes_Compare);
1397 // 2. remove duplicates
1398 for(i = 0; i < count; ++i)
1400 if(modes[i].width && modes[i].height)
1404 if(modes[i].width != modes[i-1].width)
1406 if(modes[i].height != modes[i-1].height)
1409 if(modes[i].refreshrate != modes[i-1].refreshrate)
1412 if(modes[i].bpp != modes[i-1].bpp)
1415 if(modes[i].pixelheight_num * modes[i-1].pixelheight_denom != modes[i].pixelheight_denom * modes[i-1].pixelheight_num)
1418 // a dupe, or a bogus mode!
1420 memmove(&modes[i], &modes[i+1], sizeof(*modes) * (count-1 - i));
1421 --i; // check this index again, as mode i+1 is now here