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;
17 float in_windowmouse_x, in_windowmouse_y;
19 // LordHavoc: if window is hidden, don't update screen
20 qboolean vid_hidden = true;
21 // LordHavoc: if window is not the active window, don't hog as much CPU time,
22 // let go of the mouse, turn off sound, and restore system gamma ramps...
23 qboolean vid_activewindow = true;
25 // we don't know until we try it!
26 cvar_t vid_hardwaregammasupported = {CVAR_READONLY,"vid_hardwaregammasupported","1", "indicates whether hardware gamma is supported (updated by attempts to set hardware gamma ramps)"};
28 // VorteX: more info cvars, mostly set in VID_CheckExtensions
29 cvar_t gl_info_vendor = {CVAR_READONLY, "gl_info_vendor", "", "indicates brand of graphics chip"};
30 cvar_t gl_info_renderer = {CVAR_READONLY, "gl_info_renderer", "", "indicates graphics chip model and other information"};
31 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."};
32 cvar_t gl_info_extensions = {CVAR_READONLY, "gl_info_extensions", "", "indicates extension list found by engine, space separated."};
33 cvar_t gl_info_platform = {CVAR_READONLY, "gl_info_platform", "", "indicates GL platform: WGL, GLX, or AGL."};
34 cvar_t gl_info_driver = {CVAR_READONLY, "gl_info_driver", "", "name of driver library (opengl32.dll, libGL.so.1, or whatever)."};
36 // whether hardware gamma ramps are currently in effect
37 qboolean vid_usinghwgamma = false;
39 int vid_gammarampsize = 0;
40 unsigned short *vid_gammaramps = NULL;
41 unsigned short *vid_systemgammaramps = NULL;
43 cvar_t vid_fullscreen = {CVAR_SAVE, "vid_fullscreen", "1", "use fullscreen (1) or windowed (0)"};
44 cvar_t vid_width = {CVAR_SAVE, "vid_width", "640", "resolution"};
45 cvar_t vid_height = {CVAR_SAVE, "vid_height", "480", "resolution"};
46 cvar_t vid_bitsperpixel = {CVAR_SAVE, "vid_bitsperpixel", "32", "how many bits per pixel to render at (32 or 16, 32 is recommended)"};
47 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)"};
48 cvar_t vid_refreshrate = {CVAR_SAVE, "vid_refreshrate", "60", "refresh rate to use, in hz (higher values flicker less, if supported by your monitor)"};
49 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"};
50 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"};
52 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"};
53 cvar_t vid_mouse = {CVAR_SAVE, "vid_mouse", "1", "whether to use the mouse in windowed mode (fullscreen always does)"};
54 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)"};
55 cvar_t vid_minwidth = {0, "vid_minwidth", "0", "minimum vid_width that is acceptable (to be set in default.cfg in mods)"};
56 cvar_t vid_minheight = {0, "vid_minheight", "0", "minimum vid_height that is acceptable (to be set in default.cfg in mods)"};
57 cvar_t r_textureunits = {0, "r_textureunits", "32", "number of texture units to use in GL 1.1 and GL 1.3 rendering paths"};
58 cvar_t gl_combine = {0, "gl_combine", "1", "enables the OpenGL 1.3 rendering path"};
59 cvar_t r_glsl = {CVAR_SAVE, "r_glsl", "1", "enables the OpenGL 2.0 rendering path"};
60 cvar_t vid_gl13 = {0, "vid_gl13", "1", "enables faster rendering using OpenGL 1.3 features (such as GL_ARB_texture_env_combine extension)"};
61 cvar_t vid_gl20 = {0, "vid_gl20", "1", "enables faster rendering using OpenGL 2.0 features (such as GL_ARB_fragment_shader extension)"};
62 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)"};
64 cvar_t vid_stick_mouse = {CVAR_SAVE, "vid_stick_mouse", "0", "have the mouse stuck in the center of the screen" };
65 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" };
67 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"};
68 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)"};
69 cvar_t v_brightness = {CVAR_SAVE, "v_brightness", "0", "brightness of black, useful for monitors that are too dark"};
70 cvar_t v_contrastboost = {CVAR_SAVE, "v_contrastboost", "1", "by how much to multiply the contrast in dark areas (1 is no change)"};
71 cvar_t v_color_enable = {CVAR_SAVE, "v_color_enable", "0", "enables black-grey-white color correction curve controls"};
72 cvar_t v_color_black_r = {CVAR_SAVE, "v_color_black_r", "0", "desired color of black"};
73 cvar_t v_color_black_g = {CVAR_SAVE, "v_color_black_g", "0", "desired color of black"};
74 cvar_t v_color_black_b = {CVAR_SAVE, "v_color_black_b", "0", "desired color of black"};
75 cvar_t v_color_grey_r = {CVAR_SAVE, "v_color_grey_r", "0.5", "desired color of grey"};
76 cvar_t v_color_grey_g = {CVAR_SAVE, "v_color_grey_g", "0.5", "desired color of grey"};
77 cvar_t v_color_grey_b = {CVAR_SAVE, "v_color_grey_b", "0.5", "desired color of grey"};
78 cvar_t v_color_white_r = {CVAR_SAVE, "v_color_white_r", "1", "desired color of white"};
79 cvar_t v_color_white_g = {CVAR_SAVE, "v_color_white_g", "1", "desired color of white"};
80 cvar_t v_color_white_b = {CVAR_SAVE, "v_color_white_b", "1", "desired color of white"};
81 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"};
82 cvar_t v_glslgamma = {CVAR_SAVE, "v_glslgamma", "0", "enables use of GLSL to apply gamma correction ramps if available (note: overrides v_hwgamma)"};
83 cvar_t v_psycho = {0, "v_psycho", "0", "easter egg (does not work on Windows2000 or above)"};
85 // brand of graphics chip
86 const char *gl_vendor;
87 // graphics chip model and other information
88 const char *gl_renderer;
89 // begins with 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0
90 const char *gl_version;
91 // extensions list, space separated
92 const char *gl_extensions;
94 const char *gl_platform;
95 // another extensions list, containing platform-specific extensions that are
96 // not in the main list
97 const char *gl_platformextensions;
98 // name of driver library (opengl32.dll, libGL.so.1, or whatever)
101 // GL_ARB_multitexture
102 void (GLAPIENTRY *qglMultiTexCoord1f) (GLenum, GLfloat);
103 void (GLAPIENTRY *qglMultiTexCoord2f) (GLenum, GLfloat, GLfloat);
104 void (GLAPIENTRY *qglMultiTexCoord3f) (GLenum, GLfloat, GLfloat, GLfloat);
105 void (GLAPIENTRY *qglMultiTexCoord4f) (GLenum, GLfloat, GLfloat, GLfloat, GLfloat);
106 void (GLAPIENTRY *qglActiveTexture) (GLenum);
107 void (GLAPIENTRY *qglClientActiveTexture) (GLenum);
109 // GL_EXT_compiled_vertex_array
110 void (GLAPIENTRY *qglLockArraysEXT) (GLint first, GLint count);
111 void (GLAPIENTRY *qglUnlockArraysEXT) (void);
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 *qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
151 void (GLAPIENTRY *qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *ptr);
152 void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
153 void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
154 void (GLAPIENTRY *qglArrayElement)(GLint i);
156 void (GLAPIENTRY *qglColor4f)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
157 void (GLAPIENTRY *qglTexCoord1f)(GLfloat s);
158 void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
159 void (GLAPIENTRY *qglTexCoord3f)(GLfloat s, GLfloat t, GLfloat r);
160 void (GLAPIENTRY *qglTexCoord4f)(GLfloat s, GLfloat t, GLfloat r, GLfloat q);
161 void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
162 void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
163 void (GLAPIENTRY *qglBegin)(GLenum mode);
164 void (GLAPIENTRY *qglEnd)(void);
166 void (GLAPIENTRY *qglMatrixMode)(GLenum mode);
167 void (GLAPIENTRY *qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
168 void (GLAPIENTRY *qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
169 void (GLAPIENTRY *qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
170 void (GLAPIENTRY *qglPushMatrix)(void);
171 void (GLAPIENTRY *qglPopMatrix)(void);
172 void (GLAPIENTRY *qglLoadIdentity)(void);
173 void (GLAPIENTRY *qglLoadMatrixd)(const GLdouble *m);
174 void (GLAPIENTRY *qglLoadMatrixf)(const GLfloat *m);
175 void (GLAPIENTRY *qglMultMatrixd)(const GLdouble *m);
176 void (GLAPIENTRY *qglMultMatrixf)(const GLfloat *m);
177 void (GLAPIENTRY *qglRotated)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
178 void (GLAPIENTRY *qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
179 void (GLAPIENTRY *qglScaled)(GLdouble x, GLdouble y, GLdouble z);
180 void (GLAPIENTRY *qglScalef)(GLfloat x, GLfloat y, GLfloat z);
181 void (GLAPIENTRY *qglTranslated)(GLdouble x, GLdouble y, GLdouble z);
182 void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
184 void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
186 void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
187 void (GLAPIENTRY *qglStencilMask)(GLuint mask);
188 void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
189 void (GLAPIENTRY *qglClearStencil)(GLint s);
191 void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
192 void (GLAPIENTRY *qglTexEnvfv)(GLenum target, GLenum pname, const GLfloat *params);
193 void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
194 void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
195 void (GLAPIENTRY *qglTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
196 void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
197 void (GLAPIENTRY *qglHint)(GLenum target, GLenum mode);
199 void (GLAPIENTRY *qglGenTextures)(GLsizei n, GLuint *textures);
200 void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
201 void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
202 //void (GLAPIENTRY *qglPrioritizeTextures)(GLsizei n, const GLuint *textures, const GLclampf *priorities);
203 //GLboolean (GLAPIENTRY *qglAreTexturesResident)(GLsizei n, const GLuint *textures, GLboolean *residences);
204 GLboolean (GLAPIENTRY *qglIsTexture)(GLuint texture);
205 void (GLAPIENTRY *qglPixelStoref)(GLenum pname, GLfloat param);
206 void (GLAPIENTRY *qglPixelStorei)(GLenum pname, GLint param);
208 //void (GLAPIENTRY *qglTexImage1D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
209 void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
210 //void (GLAPIENTRY *qglTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels);
211 void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
212 //void (GLAPIENTRY *qglCopyTexImage1D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
213 void (GLAPIENTRY *qglCopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
214 //void (GLAPIENTRY *qglCopyTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
215 void (GLAPIENTRY *qglCopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
218 void (GLAPIENTRY *qglDrawRangeElementsEXT)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
220 //void (GLAPIENTRY *qglColorTableEXT)(int, int, int, int, int, const void *);
222 void (GLAPIENTRY *qglTexImage3D)(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
223 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);
224 void (GLAPIENTRY *qglCopyTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
226 void (GLAPIENTRY *qglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
228 void (GLAPIENTRY *qglPolygonOffset)(GLfloat factor, GLfloat units);
229 void (GLAPIENTRY *qglPolygonMode)(GLenum face, GLenum mode);
230 void (GLAPIENTRY *qglPolygonStipple)(const GLubyte *mask);
232 void (GLAPIENTRY *qglClipPlane)(GLenum plane, const GLdouble *equation);
233 void (GLAPIENTRY *qglGetClipPlane)(GLenum plane, GLdouble *equation);
235 //[515]: added on 29.07.2005
236 void (GLAPIENTRY *qglLineWidth)(GLfloat width);
237 void (GLAPIENTRY *qglPointSize)(GLfloat size);
239 void (GLAPIENTRY *qglBlendEquationEXT)(GLenum);
241 void (GLAPIENTRY *qglStencilOpSeparate)(GLenum, GLenum, GLenum, GLenum);
242 void (GLAPIENTRY *qglStencilFuncSeparate)(GLenum, GLenum, GLint, GLuint);
243 void (GLAPIENTRY *qglActiveStencilFaceEXT)(GLenum);
245 void (GLAPIENTRY *qglDeleteObjectARB)(GLhandleARB obj);
246 GLhandleARB (GLAPIENTRY *qglGetHandleARB)(GLenum pname);
247 void (GLAPIENTRY *qglDetachObjectARB)(GLhandleARB containerObj, GLhandleARB attachedObj);
248 GLhandleARB (GLAPIENTRY *qglCreateShaderObjectARB)(GLenum shaderType);
249 void (GLAPIENTRY *qglShaderSourceARB)(GLhandleARB shaderObj, GLsizei count, const GLcharARB **string, const GLint *length);
250 void (GLAPIENTRY *qglCompileShaderARB)(GLhandleARB shaderObj);
251 GLhandleARB (GLAPIENTRY *qglCreateProgramObjectARB)(void);
252 void (GLAPIENTRY *qglAttachObjectARB)(GLhandleARB containerObj, GLhandleARB obj);
253 void (GLAPIENTRY *qglLinkProgramARB)(GLhandleARB programObj);
254 void (GLAPIENTRY *qglUseProgramObjectARB)(GLhandleARB programObj);
255 void (GLAPIENTRY *qglValidateProgramARB)(GLhandleARB programObj);
256 void (GLAPIENTRY *qglUniform1fARB)(GLint location, GLfloat v0);
257 void (GLAPIENTRY *qglUniform2fARB)(GLint location, GLfloat v0, GLfloat v1);
258 void (GLAPIENTRY *qglUniform3fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
259 void (GLAPIENTRY *qglUniform4fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
260 void (GLAPIENTRY *qglUniform1iARB)(GLint location, GLint v0);
261 void (GLAPIENTRY *qglUniform2iARB)(GLint location, GLint v0, GLint v1);
262 void (GLAPIENTRY *qglUniform3iARB)(GLint location, GLint v0, GLint v1, GLint v2);
263 void (GLAPIENTRY *qglUniform4iARB)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
264 void (GLAPIENTRY *qglUniform1fvARB)(GLint location, GLsizei count, const GLfloat *value);
265 void (GLAPIENTRY *qglUniform2fvARB)(GLint location, GLsizei count, const GLfloat *value);
266 void (GLAPIENTRY *qglUniform3fvARB)(GLint location, GLsizei count, const GLfloat *value);
267 void (GLAPIENTRY *qglUniform4fvARB)(GLint location, GLsizei count, const GLfloat *value);
268 void (GLAPIENTRY *qglUniform1ivARB)(GLint location, GLsizei count, const GLint *value);
269 void (GLAPIENTRY *qglUniform2ivARB)(GLint location, GLsizei count, const GLint *value);
270 void (GLAPIENTRY *qglUniform3ivARB)(GLint location, GLsizei count, const GLint *value);
271 void (GLAPIENTRY *qglUniform4ivARB)(GLint location, GLsizei count, const GLint *value);
272 void (GLAPIENTRY *qglUniformMatrix2fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
273 void (GLAPIENTRY *qglUniformMatrix3fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
274 void (GLAPIENTRY *qglUniformMatrix4fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
275 void (GLAPIENTRY *qglGetObjectParameterfvARB)(GLhandleARB obj, GLenum pname, GLfloat *params);
276 void (GLAPIENTRY *qglGetObjectParameterivARB)(GLhandleARB obj, GLenum pname, GLint *params);
277 void (GLAPIENTRY *qglGetInfoLogARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *infoLog);
278 void (GLAPIENTRY *qglGetAttachedObjectsARB)(GLhandleARB containerObj, GLsizei maxCount, GLsizei *count, GLhandleARB *obj);
279 GLint (GLAPIENTRY *qglGetUniformLocationARB)(GLhandleARB programObj, const GLcharARB *name);
280 void (GLAPIENTRY *qglGetActiveUniformARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
281 void (GLAPIENTRY *qglGetUniformfvARB)(GLhandleARB programObj, GLint location, GLfloat *params);
282 void (GLAPIENTRY *qglGetUniformivARB)(GLhandleARB programObj, GLint location, GLint *params);
283 void (GLAPIENTRY *qglGetShaderSourceARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *source);
285 //void (GLAPIENTRY *qglVertexAttrib1fARB)(GLuint index, GLfloat v0);
286 //void (GLAPIENTRY *qglVertexAttrib1sARB)(GLuint index, GLshort v0);
287 //void (GLAPIENTRY *qglVertexAttrib1dARB)(GLuint index, GLdouble v0);
288 //void (GLAPIENTRY *qglVertexAttrib2fARB)(GLuint index, GLfloat v0, GLfloat v1);
289 //void (GLAPIENTRY *qglVertexAttrib2sARB)(GLuint index, GLshort v0, GLshort v1);
290 //void (GLAPIENTRY *qglVertexAttrib2dARB)(GLuint index, GLdouble v0, GLdouble v1);
291 //void (GLAPIENTRY *qglVertexAttrib3fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2);
292 //void (GLAPIENTRY *qglVertexAttrib3sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2);
293 //void (GLAPIENTRY *qglVertexAttrib3dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2);
294 //void (GLAPIENTRY *qglVertexAttrib4fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
295 //void (GLAPIENTRY *qglVertexAttrib4sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2, GLshort v3);
296 //void (GLAPIENTRY *qglVertexAttrib4dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2, GLdouble v3);
297 //void (GLAPIENTRY *qglVertexAttrib4NubARB)(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
298 //void (GLAPIENTRY *qglVertexAttrib1fvARB)(GLuint index, const GLfloat *v);
299 //void (GLAPIENTRY *qglVertexAttrib1svARB)(GLuint index, const GLshort *v);
300 //void (GLAPIENTRY *qglVertexAttrib1dvARB)(GLuint index, const GLdouble *v);
301 //void (GLAPIENTRY *qglVertexAttrib2fvARB)(GLuint index, const GLfloat *v);
302 //void (GLAPIENTRY *qglVertexAttrib2svARB)(GLuint index, const GLshort *v);
303 //void (GLAPIENTRY *qglVertexAttrib2dvARB)(GLuint index, const GLdouble *v);
304 //void (GLAPIENTRY *qglVertexAttrib3fvARB)(GLuint index, const GLfloat *v);
305 //void (GLAPIENTRY *qglVertexAttrib3svARB)(GLuint index, const GLshort *v);
306 //void (GLAPIENTRY *qglVertexAttrib3dvARB)(GLuint index, const GLdouble *v);
307 //void (GLAPIENTRY *qglVertexAttrib4fvARB)(GLuint index, const GLfloat *v);
308 //void (GLAPIENTRY *qglVertexAttrib4svARB)(GLuint index, const GLshort *v);
309 //void (GLAPIENTRY *qglVertexAttrib4dvARB)(GLuint index, const GLdouble *v);
310 //void (GLAPIENTRY *qglVertexAttrib4ivARB)(GLuint index, const GLint *v);
311 //void (GLAPIENTRY *qglVertexAttrib4bvARB)(GLuint index, const GLbyte *v);
312 //void (GLAPIENTRY *qglVertexAttrib4ubvARB)(GLuint index, const GLubyte *v);
313 //void (GLAPIENTRY *qglVertexAttrib4usvARB)(GLuint index, const GLushort *v);
314 //void (GLAPIENTRY *qglVertexAttrib4uivARB)(GLuint index, const GLuint *v);
315 //void (GLAPIENTRY *qglVertexAttrib4NbvARB)(GLuint index, const GLbyte *v);
316 //void (GLAPIENTRY *qglVertexAttrib4NsvARB)(GLuint index, const GLshort *v);
317 //void (GLAPIENTRY *qglVertexAttrib4NivARB)(GLuint index, const GLint *v);
318 //void (GLAPIENTRY *qglVertexAttrib4NubvARB)(GLuint index, const GLubyte *v);
319 //void (GLAPIENTRY *qglVertexAttrib4NusvARB)(GLuint index, const GLushort *v);
320 //void (GLAPIENTRY *qglVertexAttrib4NuivARB)(GLuint index, const GLuint *v);
321 void (GLAPIENTRY *qglVertexAttribPointerARB)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
322 void (GLAPIENTRY *qglEnableVertexAttribArrayARB)(GLuint index);
323 void (GLAPIENTRY *qglDisableVertexAttribArrayARB)(GLuint index);
324 void (GLAPIENTRY *qglBindAttribLocationARB)(GLhandleARB programObj, GLuint index, const GLcharARB *name);
325 void (GLAPIENTRY *qglGetActiveAttribARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
326 GLint (GLAPIENTRY *qglGetAttribLocationARB)(GLhandleARB programObj, const GLcharARB *name);
327 //void (GLAPIENTRY *qglGetVertexAttribdvARB)(GLuint index, GLenum pname, GLdouble *params);
328 //void (GLAPIENTRY *qglGetVertexAttribfvARB)(GLuint index, GLenum pname, GLfloat *params);
329 //void (GLAPIENTRY *qglGetVertexAttribivARB)(GLuint index, GLenum pname, GLint *params);
330 //void (GLAPIENTRY *qglGetVertexAttribPointervARB)(GLuint index, GLenum pname, GLvoid **pointer);
332 //GL_ARB_vertex_buffer_object
333 void (GLAPIENTRY *qglBindBufferARB) (GLenum target, GLuint buffer);
334 void (GLAPIENTRY *qglDeleteBuffersARB) (GLsizei n, const GLuint *buffers);
335 void (GLAPIENTRY *qglGenBuffersARB) (GLsizei n, GLuint *buffers);
336 GLboolean (GLAPIENTRY *qglIsBufferARB) (GLuint buffer);
337 GLvoid* (GLAPIENTRY *qglMapBufferARB) (GLenum target, GLenum access);
338 GLboolean (GLAPIENTRY *qglUnmapBufferARB) (GLenum target);
339 void (GLAPIENTRY *qglBufferDataARB) (GLenum target, GLsizeiptrARB size, const GLvoid *data, GLenum usage);
340 void (GLAPIENTRY *qglBufferSubDataARB) (GLenum target, GLintptrARB offset, GLsizeiptrARB size, const GLvoid *data);
342 //GL_EXT_framebuffer_object
343 GLboolean (GLAPIENTRY *qglIsRenderbufferEXT)(GLuint renderbuffer);
344 void (GLAPIENTRY *qglBindRenderbufferEXT)(GLenum target, GLuint renderbuffer);
345 void (GLAPIENTRY *qglDeleteRenderbuffersEXT)(GLsizei n, const GLuint *renderbuffers);
346 void (GLAPIENTRY *qglGenRenderbuffersEXT)(GLsizei n, GLuint *renderbuffers);
347 void (GLAPIENTRY *qglRenderbufferStorageEXT)(GLenum target, GLenum internalformat, GLsizei width, GLsizei height);
348 void (GLAPIENTRY *qglGetRenderbufferParameterivEXT)(GLenum target, GLenum pname, GLint *params);
349 GLboolean (GLAPIENTRY *qglIsFramebufferEXT)(GLuint framebuffer);
350 void (GLAPIENTRY *qglBindFramebufferEXT)(GLenum target, GLuint framebuffer);
351 void (GLAPIENTRY *qglDeleteFramebuffersEXT)(GLsizei n, const GLuint *framebuffers);
352 void (GLAPIENTRY *qglGenFramebuffersEXT)(GLsizei n, GLuint *framebuffers);
353 GLenum (GLAPIENTRY *qglCheckFramebufferStatusEXT)(GLenum target);
354 //void (GLAPIENTRY *qglFramebufferTexture1DEXT)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
355 void (GLAPIENTRY *qglFramebufferTexture2DEXT)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
356 void (GLAPIENTRY *qglFramebufferTexture3DEXT)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset);
357 void (GLAPIENTRY *qglFramebufferRenderbufferEXT)(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer);
358 void (GLAPIENTRY *qglGetFramebufferAttachmentParameterivEXT)(GLenum target, GLenum attachment, GLenum pname, GLint *params);
359 void (GLAPIENTRY *qglGenerateMipmapEXT)(GLenum target);
361 void (GLAPIENTRY *qglCompressedTexImage3DARB)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const void *data);
362 void (GLAPIENTRY *qglCompressedTexImage2DARB)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void *data);
363 //void (GLAPIENTRY *qglCompressedTexImage1DARB)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLint border, GLsizei imageSize, const void *data);
364 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);
365 void (GLAPIENTRY *qglCompressedTexSubImage2DARB)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *data);
366 //void (GLAPIENTRY *qglCompressedTexSubImage1DARB)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const void *data);
367 void (GLAPIENTRY *qglGetCompressedTexImageARB)(GLenum target, GLint lod, void *img);
369 void (GLAPIENTRY *qglGenQueriesARB)(GLsizei n, GLuint *ids);
370 void (GLAPIENTRY *qglDeleteQueriesARB)(GLsizei n, const GLuint *ids);
371 GLboolean (GLAPIENTRY *qglIsQueryARB)(GLuint qid);
372 void (GLAPIENTRY *qglBeginQueryARB)(GLenum target, GLuint qid);
373 void (GLAPIENTRY *qglEndQueryARB)(GLenum target);
374 void (GLAPIENTRY *qglGetQueryivARB)(GLenum target, GLenum pname, GLint *params);
375 void (GLAPIENTRY *qglGetQueryObjectivARB)(GLuint qid, GLenum pname, GLint *params);
376 void (GLAPIENTRY *qglGetQueryObjectuivARB)(GLuint qid, GLenum pname, GLuint *params);
379 #define sscanf sscanf_s
382 int GL_CheckExtension(const char *minglver_or_ext, const dllfunction_t *funcs, const char *disableparm, int silent)
385 const dllfunction_t *func;
386 struct { int major, minor; } min_version, curr_version;
387 char extstr[MAX_INPUTLINE];
390 if(sscanf(minglver_or_ext, "%d.%d", &min_version.major, &min_version.minor) == 2)
391 ext = 0; // opengl version
392 else if(minglver_or_ext[0] != toupper(minglver_or_ext[0]))
393 ext = -1; // pseudo name
395 ext = 1; // extension name
398 Con_DPrintf("checking for %s... ", minglver_or_ext);
400 Con_DPrintf("checking for OpenGL %s core features... ", minglver_or_ext);
402 for (func = funcs;func && func->name;func++)
403 *func->funcvariable = NULL;
405 if (disableparm && (COM_CheckParm(disableparm) || COM_CheckParm("-safe")))
407 Con_DPrint("disabled by commandline\n");
411 if (ext == 1) // opengl extension
413 if (!strstr(gl_extensions ? gl_extensions : "", minglver_or_ext) && !strstr(gl_platformextensions ? gl_platformextensions : "", minglver_or_ext))
415 Con_DPrint("not detected\n");
420 if(ext == 0) // opengl version
422 sscanf(gl_version, "%d.%d", &curr_version.major, &curr_version.minor);
424 if (curr_version.major < min_version.major || (curr_version.major == min_version.major && curr_version.minor < min_version.minor))
426 Con_DPrintf("not detected (OpenGL %d.%d loaded)\n", curr_version.major, curr_version.minor);
431 for (func = funcs;func && func->name != NULL;func++)
433 // Con_DPrintf("\n %s... ", func->name);
435 // functions are cleared before all the extensions are evaluated
436 if (!(*func->funcvariable = (void *) GL_GetProcAddress(func->name)))
441 Con_DPrintf("%s is missing function \"%s\" - broken driver!\n", minglver_or_ext, func->name);
443 Con_DPrintf("OpenGL %s core features are missing function \"%s\" - broken driver!\n", minglver_or_ext, func->name);
448 // delay the return so it prints all missing functions
451 // VorteX: add to found extension list
452 dpsnprintf(extstr, sizeof(extstr), "%s %s ", gl_info_extensions.string, minglver_or_ext);
453 Cvar_SetQuick(&gl_info_extensions, extstr);
455 Con_DPrint("enabled\n");
459 static dllfunction_t opengl110funcs[] =
461 {"glClearColor", (void **) &qglClearColor},
462 {"glClear", (void **) &qglClear},
463 {"glAlphaFunc", (void **) &qglAlphaFunc},
464 {"glBlendFunc", (void **) &qglBlendFunc},
465 {"glCullFace", (void **) &qglCullFace},
466 {"glDrawBuffer", (void **) &qglDrawBuffer},
467 {"glReadBuffer", (void **) &qglReadBuffer},
468 {"glEnable", (void **) &qglEnable},
469 {"glDisable", (void **) &qglDisable},
470 {"glIsEnabled", (void **) &qglIsEnabled},
471 {"glEnableClientState", (void **) &qglEnableClientState},
472 {"glDisableClientState", (void **) &qglDisableClientState},
473 {"glGetBooleanv", (void **) &qglGetBooleanv},
474 {"glGetDoublev", (void **) &qglGetDoublev},
475 {"glGetFloatv", (void **) &qglGetFloatv},
476 {"glGetIntegerv", (void **) &qglGetIntegerv},
477 {"glGetError", (void **) &qglGetError},
478 {"glGetString", (void **) &qglGetString},
479 {"glFinish", (void **) &qglFinish},
480 {"glFlush", (void **) &qglFlush},
481 {"glClearDepth", (void **) &qglClearDepth},
482 {"glDepthFunc", (void **) &qglDepthFunc},
483 {"glDepthMask", (void **) &qglDepthMask},
484 {"glDepthRange", (void **) &qglDepthRange},
485 {"glDrawElements", (void **) &qglDrawElements},
486 {"glColorMask", (void **) &qglColorMask},
487 {"glVertexPointer", (void **) &qglVertexPointer},
488 {"glNormalPointer", (void **) &qglNormalPointer},
489 {"glColorPointer", (void **) &qglColorPointer},
490 {"glTexCoordPointer", (void **) &qglTexCoordPointer},
491 {"glArrayElement", (void **) &qglArrayElement},
492 {"glColor4f", (void **) &qglColor4f},
493 {"glTexCoord1f", (void **) &qglTexCoord1f},
494 {"glTexCoord2f", (void **) &qglTexCoord2f},
495 {"glTexCoord3f", (void **) &qglTexCoord3f},
496 {"glTexCoord4f", (void **) &qglTexCoord4f},
497 {"glVertex2f", (void **) &qglVertex2f},
498 {"glVertex3f", (void **) &qglVertex3f},
499 {"glBegin", (void **) &qglBegin},
500 {"glEnd", (void **) &qglEnd},
501 //[515]: added on 29.07.2005
502 {"glLineWidth", (void**) &qglLineWidth},
503 {"glPointSize", (void**) &qglPointSize},
505 {"glMatrixMode", (void **) &qglMatrixMode},
506 {"glOrtho", (void **) &qglOrtho},
507 {"glFrustum", (void **) &qglFrustum},
508 {"glViewport", (void **) &qglViewport},
509 {"glPushMatrix", (void **) &qglPushMatrix},
510 {"glPopMatrix", (void **) &qglPopMatrix},
511 {"glLoadIdentity", (void **) &qglLoadIdentity},
512 {"glLoadMatrixd", (void **) &qglLoadMatrixd},
513 {"glLoadMatrixf", (void **) &qglLoadMatrixf},
514 {"glMultMatrixd", (void **) &qglMultMatrixd},
515 {"glMultMatrixf", (void **) &qglMultMatrixf},
516 {"glRotated", (void **) &qglRotated},
517 {"glRotatef", (void **) &qglRotatef},
518 {"glScaled", (void **) &qglScaled},
519 {"glScalef", (void **) &qglScalef},
520 {"glTranslated", (void **) &qglTranslated},
521 {"glTranslatef", (void **) &qglTranslatef},
522 {"glReadPixels", (void **) &qglReadPixels},
523 {"glStencilFunc", (void **) &qglStencilFunc},
524 {"glStencilMask", (void **) &qglStencilMask},
525 {"glStencilOp", (void **) &qglStencilOp},
526 {"glClearStencil", (void **) &qglClearStencil},
527 {"glTexEnvf", (void **) &qglTexEnvf},
528 {"glTexEnvfv", (void **) &qglTexEnvfv},
529 {"glTexEnvi", (void **) &qglTexEnvi},
530 {"glTexParameterf", (void **) &qglTexParameterf},
531 {"glTexParameterfv", (void **) &qglTexParameterfv},
532 {"glTexParameteri", (void **) &qglTexParameteri},
533 {"glHint", (void **) &qglHint},
534 {"glPixelStoref", (void **) &qglPixelStoref},
535 {"glPixelStorei", (void **) &qglPixelStorei},
536 {"glGenTextures", (void **) &qglGenTextures},
537 {"glDeleteTextures", (void **) &qglDeleteTextures},
538 {"glBindTexture", (void **) &qglBindTexture},
539 // {"glPrioritizeTextures", (void **) &qglPrioritizeTextures},
540 // {"glAreTexturesResident", (void **) &qglAreTexturesResident},
541 {"glIsTexture", (void **) &qglIsTexture},
542 // {"glTexImage1D", (void **) &qglTexImage1D},
543 {"glTexImage2D", (void **) &qglTexImage2D},
544 // {"glTexSubImage1D", (void **) &qglTexSubImage1D},
545 {"glTexSubImage2D", (void **) &qglTexSubImage2D},
546 // {"glCopyTexImage1D", (void **) &qglCopyTexImage1D},
547 {"glCopyTexImage2D", (void **) &qglCopyTexImage2D},
548 // {"glCopyTexSubImage1D", (void **) &qglCopyTexSubImage1D},
549 {"glCopyTexSubImage2D", (void **) &qglCopyTexSubImage2D},
550 {"glScissor", (void **) &qglScissor},
551 {"glPolygonOffset", (void **) &qglPolygonOffset},
552 {"glPolygonMode", (void **) &qglPolygonMode},
553 {"glPolygonStipple", (void **) &qglPolygonStipple},
554 {"glClipPlane", (void **) &qglClipPlane},
555 {"glGetClipPlane", (void **) &qglGetClipPlane},
559 static dllfunction_t drawrangeelementsfuncs[] =
561 {"glDrawRangeElements", (void **) &qglDrawRangeElements},
565 static dllfunction_t drawrangeelementsextfuncs[] =
567 {"glDrawRangeElementsEXT", (void **) &qglDrawRangeElementsEXT},
571 static dllfunction_t multitexturefuncs[] =
573 {"glMultiTexCoord1fARB", (void **) &qglMultiTexCoord1f},
574 {"glMultiTexCoord2fARB", (void **) &qglMultiTexCoord2f},
575 {"glMultiTexCoord3fARB", (void **) &qglMultiTexCoord3f},
576 {"glMultiTexCoord4fARB", (void **) &qglMultiTexCoord4f},
577 {"glActiveTextureARB", (void **) &qglActiveTexture},
578 {"glClientActiveTextureARB", (void **) &qglClientActiveTexture},
582 static dllfunction_t compiledvertexarrayfuncs[] =
584 {"glLockArraysEXT", (void **) &qglLockArraysEXT},
585 {"glUnlockArraysEXT", (void **) &qglUnlockArraysEXT},
589 static dllfunction_t texture3dextfuncs[] =
591 {"glTexImage3DEXT", (void **) &qglTexImage3D},
592 {"glTexSubImage3DEXT", (void **) &qglTexSubImage3D},
593 {"glCopyTexSubImage3DEXT", (void **) &qglCopyTexSubImage3D},
597 static dllfunction_t atiseparatestencilfuncs[] =
599 {"glStencilOpSeparateATI", (void **) &qglStencilOpSeparate},
600 {"glStencilFuncSeparateATI", (void **) &qglStencilFuncSeparate},
604 static dllfunction_t gl2separatestencilfuncs[] =
606 {"glStencilOpSeparate", (void **) &qglStencilOpSeparate},
607 {"glStencilFuncSeparate", (void **) &qglStencilFuncSeparate},
611 static dllfunction_t stenciltwosidefuncs[] =
613 {"glActiveStencilFaceEXT", (void **) &qglActiveStencilFaceEXT},
617 static dllfunction_t blendequationfuncs[] =
619 {"glBlendEquationEXT", (void **) &qglBlendEquationEXT},
623 static dllfunction_t shaderobjectsfuncs[] =
625 {"glDeleteObjectARB", (void **) &qglDeleteObjectARB},
626 {"glGetHandleARB", (void **) &qglGetHandleARB},
627 {"glDetachObjectARB", (void **) &qglDetachObjectARB},
628 {"glCreateShaderObjectARB", (void **) &qglCreateShaderObjectARB},
629 {"glShaderSourceARB", (void **) &qglShaderSourceARB},
630 {"glCompileShaderARB", (void **) &qglCompileShaderARB},
631 {"glCreateProgramObjectARB", (void **) &qglCreateProgramObjectARB},
632 {"glAttachObjectARB", (void **) &qglAttachObjectARB},
633 {"glLinkProgramARB", (void **) &qglLinkProgramARB},
634 {"glUseProgramObjectARB", (void **) &qglUseProgramObjectARB},
635 {"glValidateProgramARB", (void **) &qglValidateProgramARB},
636 {"glUniform1fARB", (void **) &qglUniform1fARB},
637 {"glUniform2fARB", (void **) &qglUniform2fARB},
638 {"glUniform3fARB", (void **) &qglUniform3fARB},
639 {"glUniform4fARB", (void **) &qglUniform4fARB},
640 {"glUniform1iARB", (void **) &qglUniform1iARB},
641 {"glUniform2iARB", (void **) &qglUniform2iARB},
642 {"glUniform3iARB", (void **) &qglUniform3iARB},
643 {"glUniform4iARB", (void **) &qglUniform4iARB},
644 {"glUniform1fvARB", (void **) &qglUniform1fvARB},
645 {"glUniform2fvARB", (void **) &qglUniform2fvARB},
646 {"glUniform3fvARB", (void **) &qglUniform3fvARB},
647 {"glUniform4fvARB", (void **) &qglUniform4fvARB},
648 {"glUniform1ivARB", (void **) &qglUniform1ivARB},
649 {"glUniform2ivARB", (void **) &qglUniform2ivARB},
650 {"glUniform3ivARB", (void **) &qglUniform3ivARB},
651 {"glUniform4ivARB", (void **) &qglUniform4ivARB},
652 {"glUniformMatrix2fvARB", (void **) &qglUniformMatrix2fvARB},
653 {"glUniformMatrix3fvARB", (void **) &qglUniformMatrix3fvARB},
654 {"glUniformMatrix4fvARB", (void **) &qglUniformMatrix4fvARB},
655 {"glGetObjectParameterfvARB", (void **) &qglGetObjectParameterfvARB},
656 {"glGetObjectParameterivARB", (void **) &qglGetObjectParameterivARB},
657 {"glGetInfoLogARB", (void **) &qglGetInfoLogARB},
658 {"glGetAttachedObjectsARB", (void **) &qglGetAttachedObjectsARB},
659 {"glGetUniformLocationARB", (void **) &qglGetUniformLocationARB},
660 {"glGetActiveUniformARB", (void **) &qglGetActiveUniformARB},
661 {"glGetUniformfvARB", (void **) &qglGetUniformfvARB},
662 {"glGetUniformivARB", (void **) &qglGetUniformivARB},
663 {"glGetShaderSourceARB", (void **) &qglGetShaderSourceARB},
667 static dllfunction_t vertexshaderfuncs[] =
669 // {"glVertexAttrib1fARB", (void **) &qglVertexAttrib1fARB},
670 // {"glVertexAttrib1sARB", (void **) &qglVertexAttrib1sARB},
671 // {"glVertexAttrib1dARB", (void **) &qglVertexAttrib1dARB},
672 // {"glVertexAttrib2fARB", (void **) &qglVertexAttrib2fARB},
673 // {"glVertexAttrib2sARB", (void **) &qglVertexAttrib2sARB},
674 // {"glVertexAttrib2dARB", (void **) &qglVertexAttrib2dARB},
675 // {"glVertexAttrib3fARB", (void **) &qglVertexAttrib3fARB},
676 // {"glVertexAttrib3sARB", (void **) &qglVertexAttrib3sARB},
677 // {"glVertexAttrib3dARB", (void **) &qglVertexAttrib3dARB},
678 // {"glVertexAttrib4fARB", (void **) &qglVertexAttrib4fARB},
679 // {"glVertexAttrib4sARB", (void **) &qglVertexAttrib4sARB},
680 // {"glVertexAttrib4dARB", (void **) &qglVertexAttrib4dARB},
681 // {"glVertexAttrib4NubARB", (void **) &qglVertexAttrib4NubARB},
682 // {"glVertexAttrib1fvARB", (void **) &qglVertexAttrib1fvARB},
683 // {"glVertexAttrib1svARB", (void **) &qglVertexAttrib1svARB},
684 // {"glVertexAttrib1dvARB", (void **) &qglVertexAttrib1dvARB},
685 // {"glVertexAttrib2fvARB", (void **) &qglVertexAttrib1fvARB},
686 // {"glVertexAttrib2svARB", (void **) &qglVertexAttrib1svARB},
687 // {"glVertexAttrib2dvARB", (void **) &qglVertexAttrib1dvARB},
688 // {"glVertexAttrib3fvARB", (void **) &qglVertexAttrib1fvARB},
689 // {"glVertexAttrib3svARB", (void **) &qglVertexAttrib1svARB},
690 // {"glVertexAttrib3dvARB", (void **) &qglVertexAttrib1dvARB},
691 // {"glVertexAttrib4fvARB", (void **) &qglVertexAttrib1fvARB},
692 // {"glVertexAttrib4svARB", (void **) &qglVertexAttrib1svARB},
693 // {"glVertexAttrib4dvARB", (void **) &qglVertexAttrib1dvARB},
694 // {"glVertexAttrib4ivARB", (void **) &qglVertexAttrib1ivARB},
695 // {"glVertexAttrib4bvARB", (void **) &qglVertexAttrib1bvARB},
696 // {"glVertexAttrib4ubvARB", (void **) &qglVertexAttrib1ubvARB},
697 // {"glVertexAttrib4usvARB", (void **) &qglVertexAttrib1usvARB},
698 // {"glVertexAttrib4uivARB", (void **) &qglVertexAttrib1uivARB},
699 // {"glVertexAttrib4NbvARB", (void **) &qglVertexAttrib1NbvARB},
700 // {"glVertexAttrib4NsvARB", (void **) &qglVertexAttrib1NsvARB},
701 // {"glVertexAttrib4NivARB", (void **) &qglVertexAttrib1NivARB},
702 // {"glVertexAttrib4NubvARB", (void **) &qglVertexAttrib1NubvARB},
703 // {"glVertexAttrib4NusvARB", (void **) &qglVertexAttrib1NusvARB},
704 // {"glVertexAttrib4NuivARB", (void **) &qglVertexAttrib1NuivARB},
705 {"glVertexAttribPointerARB", (void **) &qglVertexAttribPointerARB},
706 {"glEnableVertexAttribArrayARB", (void **) &qglEnableVertexAttribArrayARB},
707 {"glDisableVertexAttribArrayARB", (void **) &qglDisableVertexAttribArrayARB},
708 {"glBindAttribLocationARB", (void **) &qglBindAttribLocationARB},
709 {"glGetActiveAttribARB", (void **) &qglGetActiveAttribARB},
710 {"glGetAttribLocationARB", (void **) &qglGetAttribLocationARB},
711 // {"glGetVertexAttribdvARB", (void **) &qglGetVertexAttribdvARB},
712 // {"glGetVertexAttribfvARB", (void **) &qglGetVertexAttribfvARB},
713 // {"glGetVertexAttribivARB", (void **) &qglGetVertexAttribivARB},
714 // {"glGetVertexAttribPointervARB", (void **) &qglGetVertexAttribPointervARB},
718 static dllfunction_t vbofuncs[] =
720 {"glBindBufferARB" , (void **) &qglBindBufferARB},
721 {"glDeleteBuffersARB" , (void **) &qglDeleteBuffersARB},
722 {"glGenBuffersARB" , (void **) &qglGenBuffersARB},
723 {"glIsBufferARB" , (void **) &qglIsBufferARB},
724 {"glMapBufferARB" , (void **) &qglMapBufferARB},
725 {"glUnmapBufferARB" , (void **) &qglUnmapBufferARB},
726 {"glBufferDataARB" , (void **) &qglBufferDataARB},
727 {"glBufferSubDataARB" , (void **) &qglBufferSubDataARB},
731 static dllfunction_t fbofuncs[] =
733 {"glIsRenderbufferEXT" , (void **) &qglIsRenderbufferEXT},
734 {"glBindRenderbufferEXT" , (void **) &qglBindRenderbufferEXT},
735 {"glDeleteRenderbuffersEXT" , (void **) &qglDeleteRenderbuffersEXT},
736 {"glGenRenderbuffersEXT" , (void **) &qglGenRenderbuffersEXT},
737 {"glRenderbufferStorageEXT" , (void **) &qglRenderbufferStorageEXT},
738 {"glGetRenderbufferParameterivEXT" , (void **) &qglGetRenderbufferParameterivEXT},
739 {"glIsFramebufferEXT" , (void **) &qglIsFramebufferEXT},
740 {"glBindFramebufferEXT" , (void **) &qglBindFramebufferEXT},
741 {"glDeleteFramebuffersEXT" , (void **) &qglDeleteFramebuffersEXT},
742 {"glGenFramebuffersEXT" , (void **) &qglGenFramebuffersEXT},
743 {"glCheckFramebufferStatusEXT" , (void **) &qglCheckFramebufferStatusEXT},
744 // {"glFramebufferTexture1DEXT" , (void **) &qglFramebufferTexture1DEXT},
745 {"glFramebufferTexture2DEXT" , (void **) &qglFramebufferTexture2DEXT},
746 {"glFramebufferTexture3DEXT" , (void **) &qglFramebufferTexture3DEXT},
747 {"glFramebufferRenderbufferEXT" , (void **) &qglFramebufferRenderbufferEXT},
748 {"glGetFramebufferAttachmentParameterivEXT" , (void **) &qglGetFramebufferAttachmentParameterivEXT},
749 {"glGenerateMipmapEXT" , (void **) &qglGenerateMipmapEXT},
753 static dllfunction_t texturecompressionfuncs[] =
755 {"glCompressedTexImage3DARB", (void **) &qglCompressedTexImage3DARB},
756 {"glCompressedTexImage2DARB", (void **) &qglCompressedTexImage2DARB},
757 // {"glCompressedTexImage1DARB", (void **) &qglCompressedTexImage1DARB},
758 {"glCompressedTexSubImage3DARB", (void **) &qglCompressedTexSubImage3DARB},
759 {"glCompressedTexSubImage2DARB", (void **) &qglCompressedTexSubImage2DARB},
760 // {"glCompressedTexSubImage1DARB", (void **) &qglCompressedTexSubImage1DARB},
761 {"glGetCompressedTexImageARB", (void **) &qglGetCompressedTexImageARB},
765 static dllfunction_t occlusionqueryfuncs[] =
767 {"glGenQueriesARB", (void **) &qglGenQueriesARB},
768 {"glDeleteQueriesARB", (void **) &qglDeleteQueriesARB},
769 {"glIsQueryARB", (void **) &qglIsQueryARB},
770 {"glBeginQueryARB", (void **) &qglBeginQueryARB},
771 {"glEndQueryARB", (void **) &qglEndQueryARB},
772 {"glGetQueryivARB", (void **) &qglGetQueryivARB},
773 {"glGetQueryObjectivARB", (void **) &qglGetQueryObjectivARB},
774 {"glGetQueryObjectuivARB", (void **) &qglGetQueryObjectuivARB},
778 void VID_CheckExtensions(void)
780 // clear the extension flags
781 memset(&vid.support, 0, sizeof(vid.support));
783 // VorteX: reset extensions info cvar, it got filled by GL_CheckExtension
784 Cvar_SetQuick(&gl_info_extensions, "");
785 if (!GL_CheckExtension("1.1", opengl110funcs, NULL, false))
786 Sys_Error("OpenGL 1.1.0 functions not found");
790 Con_DPrint("Checking OpenGL extensions...\n");
792 vid.support.amd_texture_texture4 = GL_CheckExtension("GL_AMD_texture_texture4", NULL, "-notexture4", false);
793 vid.support.arb_depth_texture = GL_CheckExtension("GL_ARB_depth_texture", NULL, "-nodepthtexture", false);
794 vid.support.arb_fragment_shader = GL_CheckExtension("GL_ARB_fragment_shader", NULL, "-nofragmentshader", false);
795 vid.support.arb_multitexture = GL_CheckExtension("GL_ARB_multitexture", multitexturefuncs, "-nomtex", false);
796 vid.support.arb_occlusion_query = GL_CheckExtension("GL_ARB_occlusion_query", occlusionqueryfuncs, "-noocclusionquery", false);
797 vid.support.arb_shader_objects = GL_CheckExtension("GL_ARB_shader_objects", shaderobjectsfuncs, "-noshaderobjects", false);
798 vid.support.arb_shading_language_100 = GL_CheckExtension("GL_ARB_shading_language_100", NULL, "-noshadinglanguage100", false);
799 vid.support.arb_shadow = GL_CheckExtension("GL_ARB_shadow", NULL, "-noshadow", false);
800 vid.support.arb_texture_compression = GL_CheckExtension("GL_ARB_texture_compression", texturecompressionfuncs, "-notexturecompression", false);
801 vid.support.arb_texture_cube_map = GL_CheckExtension("GL_ARB_texture_cube_map", NULL, "-nocubemap", false);
802 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);
803 vid.support.arb_texture_gather = GL_CheckExtension("GL_ARB_texture_gather", NULL, "-notexturegather", false);
804 vid.support.arb_texture_non_power_of_two = GL_CheckExtension("GL_ARB_texture_non_power_of_two", NULL, "-notexturenonpoweroftwo", false);
805 vid.support.arb_texture_rectangle = GL_CheckExtension("GL_ARB_texture_rectangle", NULL, "-norectangle", false);
806 vid.support.arb_vertex_buffer_object = GL_CheckExtension("GL_ARB_vertex_buffer_object", vbofuncs, "-novbo", false);
807 vid.support.arb_vertex_shader = GL_CheckExtension("GL_ARB_vertex_shader", vertexshaderfuncs, "-novertexshader", false);
808 vid.support.ati_separate_stencil = GL_CheckExtension("2.0", gl2separatestencilfuncs, "-noseparatestencil", true) || GL_CheckExtension("GL_ATI_separate_stencil", atiseparatestencilfuncs, "-noseparatestencil", false);
809 vid.support.ext_blend_minmax = GL_CheckExtension("GL_EXT_blend_minmax", blendequationfuncs, "-noblendminmax", false);
810 vid.support.ext_blend_subtract = GL_CheckExtension("GL_EXT_blend_subtract", blendequationfuncs, "-noblendsubtract", false);
811 vid.support.ext_compiled_vertex_array = GL_CheckExtension("GL_EXT_compiled_vertex_array", compiledvertexarrayfuncs, "-nocva", false);
812 vid.support.ext_draw_range_elements = GL_CheckExtension("1.2", drawrangeelementsfuncs, "-nodrawrangeelements", true) || GL_CheckExtension("GL_EXT_draw_range_elements", drawrangeelementsextfuncs, "-nodrawrangeelements", false);
813 vid.support.ext_framebuffer_object = GL_CheckExtension("GL_EXT_framebuffer_object", fbofuncs, "-nofbo", false);
814 vid.support.ext_stencil_two_side = GL_CheckExtension("GL_EXT_stencil_two_side", stenciltwosidefuncs, "-nostenciltwoside", false);
815 vid.support.ext_texture_3d = GL_CheckExtension("GL_EXT_texture3D", texture3dextfuncs, "-notexture3d", false);
816 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);
817 vid.support.ext_texture_filter_anisotropic = GL_CheckExtension("GL_EXT_texture_filter_anisotropic", NULL, "-noanisotropy", false);
818 vid.support.nv_blend_square = GL_CheckExtension("GL_NV_blend_square", NULL, "-noblendsquare", false);
819 // COMMANDLINEOPTION: GL: -noanisotropy disables GL_EXT_texture_filter_anisotropic (allows higher quality texturing)
820 // COMMANDLINEOPTION: GL: -noblendminmax disables GL_EXT_blend_minmax
821 // COMMANDLINEOPTION: GL: -noblendsquare disables GL_NV_blend_square
822 // COMMANDLINEOPTION: GL: -noblendsubtract disables GL_EXT_blend_subtract
823 // COMMANDLINEOPTION: GL: -nocombine disables GL_ARB_texture_env_combine or GL_EXT_texture_env_combine (required for bumpmapping and faster map rendering)
824 // COMMANDLINEOPTION: GL: -nocubemap disables GL_ARB_texture_cube_map (required for bumpmapping)
825 // COMMANDLINEOPTION: GL: -nocva disables GL_EXT_compiled_vertex_array (renders faster)
826 // COMMANDLINEOPTION: GL: -nodepthtexture disables use of GL_ARB_depth_texture (required for shadowmapping)
827 // COMMANDLINEOPTION: GL: -nodrawrangeelements disables GL_EXT_draw_range_elements (renders faster)
828 // 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)
829 // COMMANDLINEOPTION: GL: -nofbo disables GL_EXT_framebuffer_object (which accelerates rendering), only used if GL_ARB_fragment_shader is also available
830 // COMMANDLINEOPTION: GL: -nofragmentshader disables GL_ARB_fragment_shader (allows pixel shader effects, can improve per pixel lighting performance and capabilities)
831 // COMMANDLINEOPTION: GL: -nomtex disables GL_ARB_multitexture (required for faster map rendering)
832 // COMMANDLINEOPTION: GL: -noocclusionquery disables GL_ARB_occlusion_query (which allows coronas to fade according to visibility, and potentially used for rendering optimizations)
833 // COMMANDLINEOPTION: GL: -norectangle disables GL_ARB_texture_rectangle (required for bumpmapping)
834 // COMMANDLINEOPTION: GL: -noseparatestencil disables use of OpenGL2.0 glStencilOpSeparate and GL_ATI_separate_stencil extensions (which accelerate shadow rendering)
835 // COMMANDLINEOPTION: GL: -noshaderobjects disables GL_ARB_shader_objects (required for vertex shader and fragment shader)
836 // COMMANDLINEOPTION: GL: -noshadinglanguage100 disables GL_ARB_shading_language_100 (required for vertex shader and fragment shader)
837 // COMMANDLINEOPTION: GL: -noshadow disables use of GL_ARB_shadow (required for hardware shadowmap filtering)
838 // COMMANDLINEOPTION: GL: -nostenciltwoside disables GL_EXT_stencil_two_side (which accelerate shadow rendering)
839 // COMMANDLINEOPTION: GL: -notexture3d disables GL_EXT_texture3D (required for spherical lights, otherwise they render as a column)
840 // COMMANDLINEOPTION: GL: -notexture4 disables GL_AMD_texture_texture4 (which provides fetch4 sampling)
841 // 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)
842 // COMMANDLINEOPTION: GL: -notexturegather disables GL_ARB_texture_gather (which provides fetch4 sampling)
843 // 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)
844 // COMMANDLINEOPTION: GL: -novbo disables GL_ARB_vertex_buffer_object (which accelerates rendering)
845 // COMMANDLINEOPTION: GL: -novertexshader disables GL_ARB_vertex_shader (allows vertex shader effects)
847 vid.maxtexturesize_2d = 0;
848 vid.maxtexturesize_3d = 0;
849 vid.maxtexturesize_cubemap = 0;
851 vid.teximageunits = 1;
852 vid.texarrayunits = 1;
853 vid.max_anisotropy = 1;
855 // 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
856 // we detect these cards by checking if the hardware supports vertex texture fetch (Geforce6 does, Radeon X1600 does not, all GL3-class hardware does)
857 if(vid.support.arb_texture_non_power_of_two)
860 if (vid.support.arb_vertex_shader)
861 qglGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB, &val);CHECKGLERROR
863 vid.support.arb_texture_non_power_of_two = false;
866 // we don't care if it's an extension or not, they are identical functions, so keep it simple in the rendering code
867 if (qglDrawRangeElements == NULL)
868 qglDrawRangeElements = qglDrawRangeElementsEXT;
870 qglGetIntegerv(GL_MAX_TEXTURE_SIZE, (GLint*)&vid.maxtexturesize_2d);
871 if (vid.support.ext_texture_filter_anisotropic)
872 qglGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, (GLint*)&vid.max_anisotropy);
873 if (vid.support.arb_texture_cube_map)
874 qglGetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, (GLint*)&vid.maxtexturesize_cubemap);
875 if (vid.support.arb_texture_rectangle)
876 qglGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE_ARB, (GLint*)&vid.maxtexturesize_rectangle);
877 if (vid.support.ext_texture_3d)
878 qglGetIntegerv(GL_MAX_3D_TEXTURE_SIZE, (GLint*)&vid.maxtexturesize_3d);
880 // verify that 3d textures are really supported
881 if (vid.support.ext_texture_3d && vid.maxtexturesize_3d < 32)
883 vid.support.ext_texture_3d = false;
884 Con_Printf("GL_EXT_texture3D reported bogus GL_MAX_3D_TEXTURE_SIZE, disabled\n");
887 vid.texunits = vid.teximageunits = vid.texarrayunits = 1;
888 if (vid.support.arb_fragment_shader && vid_gl20.integer)
890 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, (GLint*)&vid.texunits);
891 qglGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS_ARB, (int *)&vid.teximageunits);CHECKGLERROR
892 qglGetIntegerv(GL_MAX_TEXTURE_COORDS_ARB, (int *)&vid.texarrayunits);CHECKGLERROR
893 vid.texunits = bound(4, vid.texunits, MAX_TEXTUREUNITS);
894 vid.teximageunits = bound(16, vid.teximageunits, MAX_TEXTUREUNITS);
895 vid.texarrayunits = bound(8, vid.texarrayunits, MAX_TEXTUREUNITS);
896 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" : "");
897 vid.renderpath = RENDERPATH_GL20;
899 else if (vid.support.arb_texture_env_combine && vid.texunits >= 2 && vid_gl13.integer)
901 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, (GLint*)&vid.texunits);
902 vid.texunits = bound(1, vid.texunits, MAX_TEXTUREUNITS);
903 vid.teximageunits = vid.texunits;
904 vid.texarrayunits = vid.texunits;
905 Con_DPrintf("Using GL1.3 rendering path - %i texture units, single pass rendering\n", vid.texunits);
906 vid.renderpath = RENDERPATH_GL13;
910 if (vid.support.arb_multitexture)
911 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, (GLint*)&vid.texunits);
912 vid.texunits = bound(1, vid.texunits, MAX_TEXTUREUNITS);
913 vid.teximageunits = vid.texunits;
914 vid.texarrayunits = vid.texunits;
915 Con_DPrintf("Using GL1.1 rendering path - %i texture units, two pass rendering\n", vid.texunits);
916 vid.renderpath = RENDERPATH_GL11;
919 // VorteX: set other info (maybe place them in VID_InitMode?)
920 Cvar_SetQuick(&gl_info_vendor, gl_vendor);
921 Cvar_SetQuick(&gl_info_renderer, gl_renderer);
922 Cvar_SetQuick(&gl_info_version, gl_version);
923 Cvar_SetQuick(&gl_info_platform, gl_platform ? gl_platform : "");
924 Cvar_SetQuick(&gl_info_driver, gl_driver);
927 void Force_CenterView_f (void)
929 cl.viewangles[PITCH] = 0;
932 static int gamma_forcenextframe = false;
933 static float cachegamma, cachebrightness, cachecontrast, cacheblack[3], cachegrey[3], cachewhite[3], cachecontrastboost;
934 static int cachecolorenable, cachehwgamma;
936 unsigned int vid_gammatables_serial = 0; // so other subsystems can poll if gamma parameters have changed
937 qboolean vid_gammatables_trivial = true;
938 void VID_BuildGammaTables(unsigned short *ramps, int rampsize)
940 if (cachecolorenable)
942 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[0]), cachewhite[0], cacheblack[0], cachecontrastboost, ramps, rampsize);
943 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[1]), cachewhite[1], cacheblack[1], cachecontrastboost, ramps + rampsize, rampsize);
944 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[2]), cachewhite[2], cacheblack[2], cachecontrastboost, ramps + rampsize*2, rampsize);
948 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, cachecontrastboost, ramps, rampsize);
949 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, cachecontrastboost, ramps + rampsize, rampsize);
950 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, cachecontrastboost, ramps + rampsize*2, rampsize);
953 // LordHavoc: this code came from Ben Winslow and Zinx Verituse, I have
954 // immensely butchered it to work with variable framerates and fit in with
955 // the rest of darkplaces.
956 if (v_psycho.integer)
960 static float n[3], nd[3], nt[3];
961 static int init = true;
962 unsigned short *ramp;
963 gamma_forcenextframe = true;
967 for (x = 0;x < 3;x++)
969 n[x] = lhrandom(0, 1);
970 nd[x] = (rand()&1)?-0.25:0.25;
971 nt[x] = lhrandom(1, 8.2);
975 for (x = 0;x < 3;x++)
977 nt[x] -= cl.realframetime;
981 nt[x] += lhrandom(1, 8.2);
983 n[x] += nd[x] * cl.realframetime;
987 for (x = 0, ramp = ramps;x < 3;x++)
988 for (y = 0, t = n[x] - 0.75f;y < rampsize;y++, t += 0.75f * (2.0f / rampsize))
989 *ramp++ = (unsigned short)(cos(t*(M_PI*2.0)) * 32767.0f + 32767.0f);
993 void VID_UpdateGamma(qboolean force, int rampsize)
998 qboolean gamma_changed = false;
1000 // LordHavoc: don't mess with gamma tables if running dedicated
1001 if (cls.state == ca_dedicated)
1004 wantgamma = v_hwgamma.integer;
1005 if(r_glsl.integer && v_glslgamma.integer)
1007 if(!vid_activewindow)
1009 #define BOUNDCVAR(cvar, m1, m2) c = &(cvar);f = bound(m1, c->value, m2);if (c->value != f) Cvar_SetValueQuick(c, f);
1010 BOUNDCVAR(v_gamma, 0.1, 5);
1011 BOUNDCVAR(v_contrast, 1, 5);
1012 BOUNDCVAR(v_brightness, 0, 0.8);
1013 //BOUNDCVAR(v_contrastboost, 0.0625, 16);
1014 BOUNDCVAR(v_color_black_r, 0, 0.8);
1015 BOUNDCVAR(v_color_black_g, 0, 0.8);
1016 BOUNDCVAR(v_color_black_b, 0, 0.8);
1017 BOUNDCVAR(v_color_grey_r, 0, 0.95);
1018 BOUNDCVAR(v_color_grey_g, 0, 0.95);
1019 BOUNDCVAR(v_color_grey_b, 0, 0.95);
1020 BOUNDCVAR(v_color_white_r, 1, 5);
1021 BOUNDCVAR(v_color_white_g, 1, 5);
1022 BOUNDCVAR(v_color_white_b, 1, 5);
1025 // set vid_gammatables_trivial to true if the current settings would generate the identity gamma table
1026 vid_gammatables_trivial = false;
1027 if(v_psycho.integer == 0)
1028 if(v_contrastboost.value == 1)
1030 if(v_color_enable.integer)
1032 if(v_color_black_r.value == 0)
1033 if(v_color_black_g.value == 0)
1034 if(v_color_black_b.value == 0)
1035 if(fabs(v_color_grey_r.value - 0.5) < 1e-6)
1036 if(fabs(v_color_grey_g.value - 0.5) < 1e-6)
1037 if(fabs(v_color_grey_b.value - 0.5) < 1e-6)
1038 if(v_color_white_r.value == 1)
1039 if(v_color_white_g.value == 1)
1040 if(v_color_white_b.value == 1)
1041 vid_gammatables_trivial = true;
1045 if(v_gamma.value == 1)
1046 if(v_contrast.value == 1)
1047 if(v_brightness.value == 0)
1048 vid_gammatables_trivial = true;
1052 #define GAMMACHECK(cache, value) if (cache != (value)) gamma_changed = true;cache = (value)
1053 if(v_psycho.integer)
1054 gamma_changed = true;
1055 GAMMACHECK(cachegamma , v_gamma.value);
1056 GAMMACHECK(cachecontrast , v_contrast.value);
1057 GAMMACHECK(cachebrightness , v_brightness.value);
1058 GAMMACHECK(cachecontrastboost, v_contrastboost.value);
1059 GAMMACHECK(cachecolorenable, v_color_enable.integer);
1060 GAMMACHECK(cacheblack[0] , v_color_black_r.value);
1061 GAMMACHECK(cacheblack[1] , v_color_black_g.value);
1062 GAMMACHECK(cacheblack[2] , v_color_black_b.value);
1063 GAMMACHECK(cachegrey[0] , v_color_grey_r.value);
1064 GAMMACHECK(cachegrey[1] , v_color_grey_g.value);
1065 GAMMACHECK(cachegrey[2] , v_color_grey_b.value);
1066 GAMMACHECK(cachewhite[0] , v_color_white_r.value);
1067 GAMMACHECK(cachewhite[1] , v_color_white_g.value);
1068 GAMMACHECK(cachewhite[2] , v_color_white_b.value);
1071 ++vid_gammatables_serial;
1073 GAMMACHECK(cachehwgamma , wantgamma);
1076 if (!force && !gamma_forcenextframe && !gamma_changed)
1079 gamma_forcenextframe = false;
1083 if (!vid_usinghwgamma)
1085 vid_usinghwgamma = true;
1086 if (vid_gammarampsize != rampsize || !vid_gammaramps)
1088 vid_gammarampsize = rampsize;
1090 Z_Free(vid_gammaramps);
1091 vid_gammaramps = (unsigned short *)Z_Malloc(6 * vid_gammarampsize * sizeof(unsigned short));
1092 vid_systemgammaramps = vid_gammaramps + 3 * vid_gammarampsize;
1094 VID_GetGamma(vid_systemgammaramps, vid_gammarampsize);
1097 VID_BuildGammaTables(vid_gammaramps, vid_gammarampsize);
1099 // set vid_hardwaregammasupported to true if VID_SetGamma succeeds, OR if vid_hwgamma is >= 2 (forced gamma - ignores driver return value)
1100 Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_gammaramps, vid_gammarampsize) || cachehwgamma >= 2);
1101 // if custom gamma ramps failed (Windows stupidity), restore to system gamma
1102 if(!vid_hardwaregammasupported.integer)
1104 if (vid_usinghwgamma)
1106 vid_usinghwgamma = false;
1107 VID_SetGamma(vid_systemgammaramps, vid_gammarampsize);
1113 if (vid_usinghwgamma)
1115 vid_usinghwgamma = false;
1116 VID_SetGamma(vid_systemgammaramps, vid_gammarampsize);
1121 void VID_RestoreSystemGamma(void)
1123 if (vid_usinghwgamma)
1125 vid_usinghwgamma = false;
1126 Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_systemgammaramps, vid_gammarampsize));
1127 // force gamma situation to be reexamined next frame
1128 gamma_forcenextframe = true;
1132 void VID_Shared_Init(void)
1134 Cvar_RegisterVariable(&vid_hardwaregammasupported);
1135 Cvar_RegisterVariable(&gl_info_vendor);
1136 Cvar_RegisterVariable(&gl_info_renderer);
1137 Cvar_RegisterVariable(&gl_info_version);
1138 Cvar_RegisterVariable(&gl_info_extensions);
1139 Cvar_RegisterVariable(&gl_info_platform);
1140 Cvar_RegisterVariable(&gl_info_driver);
1141 Cvar_RegisterVariable(&v_gamma);
1142 Cvar_RegisterVariable(&v_brightness);
1143 Cvar_RegisterVariable(&v_contrastboost);
1144 Cvar_RegisterVariable(&v_contrast);
1146 Cvar_RegisterVariable(&v_color_enable);
1147 Cvar_RegisterVariable(&v_color_black_r);
1148 Cvar_RegisterVariable(&v_color_black_g);
1149 Cvar_RegisterVariable(&v_color_black_b);
1150 Cvar_RegisterVariable(&v_color_grey_r);
1151 Cvar_RegisterVariable(&v_color_grey_g);
1152 Cvar_RegisterVariable(&v_color_grey_b);
1153 Cvar_RegisterVariable(&v_color_white_r);
1154 Cvar_RegisterVariable(&v_color_white_g);
1155 Cvar_RegisterVariable(&v_color_white_b);
1157 Cvar_RegisterVariable(&v_hwgamma);
1158 Cvar_RegisterVariable(&v_glslgamma);
1160 Cvar_RegisterVariable(&v_psycho);
1162 Cvar_RegisterVariable(&vid_fullscreen);
1163 Cvar_RegisterVariable(&vid_width);
1164 Cvar_RegisterVariable(&vid_height);
1165 Cvar_RegisterVariable(&vid_bitsperpixel);
1166 Cvar_RegisterVariable(&vid_samples);
1167 Cvar_RegisterVariable(&vid_refreshrate);
1168 Cvar_RegisterVariable(&vid_userefreshrate);
1169 Cvar_RegisterVariable(&vid_stereobuffer);
1170 Cvar_RegisterVariable(&vid_vsync);
1171 Cvar_RegisterVariable(&vid_mouse);
1172 Cvar_RegisterVariable(&vid_grabkeyboard);
1173 Cvar_RegisterVariable(&vid_stick_mouse);
1174 Cvar_RegisterVariable(&vid_resizable);
1175 Cvar_RegisterVariable(&vid_minwidth);
1176 Cvar_RegisterVariable(&vid_minheight);
1177 Cvar_RegisterVariable(&r_textureunits);
1178 Cvar_RegisterVariable(&gl_combine);
1179 Cvar_RegisterVariable(&r_glsl);
1180 Cvar_RegisterVariable(&vid_gl13);
1181 Cvar_RegisterVariable(&vid_gl20);
1182 Cvar_RegisterVariable(&gl_finish);
1183 Cmd_AddCommand("force_centerview", Force_CenterView_f, "recenters view (stops looking up/down)");
1184 Cmd_AddCommand("vid_restart", VID_Restart_f, "restarts video system (closes and reopens the window, restarts renderer)");
1187 int VID_Mode(int fullscreen, int width, int height, int bpp, float refreshrate, int stereobuffer, int samples)
1190 memset(&mode, 0, sizeof(mode));
1191 mode.fullscreen = fullscreen;
1193 mode.height = height;
1194 mode.bitsperpixel = bpp;
1195 mode.refreshrate = vid_userefreshrate.integer ? max(1, refreshrate) : 0;
1196 mode.userefreshrate = vid_userefreshrate.integer;
1197 mode.stereobuffer = stereobuffer;
1198 mode.samples = samples;
1199 cl_ignoremousemoves = 2;
1200 if (VID_InitMode(&mode))
1202 // accept the (possibly modified) mode
1204 vid.fullscreen = vid.mode.fullscreen;
1205 vid.width = vid.mode.width;
1206 vid.height = vid.mode.height;
1207 vid.bitsperpixel = vid.mode.bitsperpixel;
1208 vid.refreshrate = vid.mode.refreshrate;
1209 vid.userefreshrate = vid.mode.userefreshrate;
1210 vid.stereobuffer = vid.mode.stereobuffer;
1211 vid.samples = vid.mode.samples;
1212 vid.stencil = vid.mode.bitsperpixel > 16;
1213 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) : "");
1215 Cvar_SetValueQuick(&vid_fullscreen, vid.mode.fullscreen);
1216 Cvar_SetValueQuick(&vid_width, vid.mode.width);
1217 Cvar_SetValueQuick(&vid_height, vid.mode.height);
1218 Cvar_SetValueQuick(&vid_bitsperpixel, vid.mode.bitsperpixel);
1219 Cvar_SetValueQuick(&vid_samples, vid.mode.samples);
1220 if(vid_userefreshrate.integer)
1221 Cvar_SetValueQuick(&vid_refreshrate, vid.mode.refreshrate);
1222 Cvar_SetValueQuick(&vid_stereobuffer, vid.mode.stereobuffer);
1230 static void VID_OpenSystems(void)
1236 static void VID_CloseSystems(void)
1239 R_Modules_Shutdown();
1242 qboolean vid_commandlinecheck = true;
1244 void VID_Restart_f(void)
1246 // don't crash if video hasn't started yet
1247 if (vid_commandlinecheck)
1250 Con_Printf("VID_Restart: changing from %s %dx%dx%dbpp%s%s, to %s %dx%dx%dbpp%s%s.\n",
1251 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) : "",
1252 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) : "");
1255 if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.value, vid_stereobuffer.integer, vid_samples.integer))
1257 Con_Print("Video mode change failed\n");
1258 if (!VID_Mode(vid.mode.fullscreen, vid.mode.width, vid.mode.height, vid.mode.bitsperpixel, vid.mode.refreshrate, vid.mode.stereobuffer, vid.mode.samples))
1259 Sys_Error("Unable to restore to last working video mode");
1264 const char *vidfallbacks[][2] =
1266 {"vid_stereobuffer", "0"},
1267 {"vid_samples", "1"},
1268 {"vid_userefreshrate", "0"},
1269 {"vid_width", "640"},
1270 {"vid_height", "480"},
1271 {"vid_bitsperpixel", "16"},
1275 // this is only called once by Host_StartVideo
1276 void VID_Start(void)
1278 int i, width, height, success;
1279 if (vid_commandlinecheck)
1281 // interpret command-line parameters
1282 vid_commandlinecheck = false;
1283 // COMMANDLINEOPTION: Video: -window performs +vid_fullscreen 0
1284 if (COM_CheckParm("-window") || COM_CheckParm("-safe"))
1285 Cvar_SetValueQuick(&vid_fullscreen, false);
1286 // COMMANDLINEOPTION: Video: -fullscreen performs +vid_fullscreen 1
1287 if (COM_CheckParm("-fullscreen"))
1288 Cvar_SetValueQuick(&vid_fullscreen, true);
1291 // 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)
1292 if ((i = COM_CheckParm("-width")) != 0)
1293 width = atoi(com_argv[i+1]);
1294 // 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)
1295 if ((i = COM_CheckParm("-height")) != 0)
1296 height = atoi(com_argv[i+1]);
1298 width = height * 4 / 3;
1300 height = width * 3 / 4;
1302 Cvar_SetValueQuick(&vid_width, width);
1304 Cvar_SetValueQuick(&vid_height, height);
1305 // COMMANDLINEOPTION: Video: -bpp <bits> performs +vid_bitsperpixel <bits> (example -bpp 32 or -bpp 16)
1306 if ((i = COM_CheckParm("-bpp")) != 0)
1307 Cvar_SetQuick(&vid_bitsperpixel, com_argv[i+1]);
1310 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.value, vid_stereobuffer.integer, vid_samples.integer);
1313 Con_Print("Desired video mode fail, trying fallbacks...\n");
1314 for (i = 0;!success && vidfallbacks[i][0] != NULL;i++)
1316 Cvar_Set(vidfallbacks[i][0], vidfallbacks[i][1]);
1317 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.value, vid_stereobuffer.integer, vid_samples.integer);
1320 Sys_Error("Video modes failed");
1325 int VID_SortModes_Compare(const void *a_, const void *b_)
1327 vid_mode_t *a = (vid_mode_t *) a_;
1328 vid_mode_t *b = (vid_mode_t *) b_;
1329 if(a->width > b->width)
1331 if(a->width < b->width)
1333 if(a->height > b->height)
1335 if(a->height < b->height)
1337 if(a->refreshrate > b->refreshrate)
1339 if(a->refreshrate < b->refreshrate)
1345 if(a->pixelheight_num * b->pixelheight_denom > a->pixelheight_denom * b->pixelheight_num)
1347 if(a->pixelheight_num * b->pixelheight_denom < a->pixelheight_denom * b->pixelheight_num)
1351 size_t VID_SortModes(vid_mode_t *modes, size_t count, qboolean usebpp, qboolean userefreshrate, qboolean useaspect)
1357 qsort(modes, count, sizeof(*modes), VID_SortModes_Compare);
1358 // 2. remove duplicates
1359 for(i = 0; i < count; ++i)
1361 if(modes[i].width && modes[i].height)
1365 if(modes[i].width != modes[i-1].width)
1367 if(modes[i].height != modes[i-1].height)
1370 if(modes[i].refreshrate != modes[i-1].refreshrate)
1373 if(modes[i].bpp != modes[i-1].bpp)
1376 if(modes[i].pixelheight_num * modes[i-1].pixelheight_denom != modes[i].pixelheight_denom * modes[i-1].pixelheight_num)
1379 // a dupe, or a bogus mode!
1381 memmove(&modes[i], &modes[i+1], sizeof(*modes) * (count-1 - i));
1382 --i; // check this index again, as mode i+1 is now here