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 // value of GL_MAX_TEXTURE_<various>_SIZE
20 int gl_max_texture_size = 0;
21 int gl_max_3d_texture_size = 0;
22 int gl_max_cube_map_texture_size = 0;
23 int gl_max_rectangle_texture_size = 0;
24 // GL_ARB_multitexture
25 int gl_textureunits = 1;
26 // GL_ARB_texture_env_combine or GL_EXT_texture_env_combine
27 int gl_combine_extension = false;
28 // GL_EXT_compiled_vertex_array
29 int gl_supportslockarrays = false;
30 // 3D textures available
31 int gl_texture3d = false;
32 // GL_ARB_texture_cubemap
33 int gl_texturecubemap = false;
34 // GL_ARB_texture_rectangle
35 int gl_texturerectangle = false;
36 // GL_ARB_texture_non_power_of_two
37 int gl_support_arb_texture_non_power_of_two = false;
38 // GL_ARB_texture_env_dot3
39 int gl_dot3arb = false;
40 // GL_ARB_depth_texture
41 int gl_depthtexture = false;
43 int gl_support_arb_shadow = false;
44 // GL_SGIS_texture_edge_clamp
45 int gl_support_clamptoedge = false;
46 // GL_EXT_texture_filter_anisotropic
47 int gl_support_anisotropy = false;
48 int gl_max_anisotropy = 1;
49 // OpenGL2.0 core glStencilOpSeparate, or GL_ATI_separate_stencil
50 int gl_support_separatestencil = false;
51 // GL_EXT_stencil_two_side
52 int gl_support_stenciltwoside = false;
53 // GL_EXT_blend_minmax
54 int gl_support_ext_blend_minmax = false;
55 // GL_EXT_blend_subtract
56 int gl_support_ext_blend_subtract = false;
57 // GL_ARB_shader_objects
58 int gl_support_shader_objects = false;
59 // GL_ARB_shading_language_100
60 int gl_support_shading_language_100 = false;
61 // GL_ARB_vertex_shader
62 int gl_support_vertex_shader = false;
63 // GL_ARB_fragment_shader
64 int gl_support_fragment_shader = false;
65 //GL_ARB_vertex_buffer_object
66 int gl_support_arb_vertex_buffer_object = false;
67 //GL_EXT_framebuffer_object
68 int gl_support_ext_framebuffer_object = false;
69 //GL_ARB_texture_compression
70 int gl_support_texture_compression = false;
71 //GL_ARB_occlusion_query
72 int gl_support_arb_occlusion_query = false;
73 //GL_AMD_texture_texture4
74 int gl_support_amd_texture_texture4 = false;
75 //GL_ARB_texture_gather
76 int gl_support_arb_texture_gather = false;
78 // LordHavoc: if window is hidden, don't update screen
79 qboolean vid_hidden = true;
80 // LordHavoc: if window is not the active window, don't hog as much CPU time,
81 // let go of the mouse, turn off sound, and restore system gamma ramps...
82 qboolean vid_activewindow = true;
84 // we don't know until we try it!
85 cvar_t vid_hardwaregammasupported = {CVAR_READONLY,"vid_hardwaregammasupported","1", "indicates whether hardware gamma is supported (updated by attempts to set hardware gamma ramps)"};
87 // VorteX: more info cvars, mostly set in VID_CheckExtensions
88 cvar_t gl_info_vendor = {CVAR_READONLY, "gl_info_vendor", "", "indicates brand of graphics chip"};
89 cvar_t gl_info_renderer = {CVAR_READONLY, "gl_info_renderer", "", "indicates graphics chip model and other information"};
90 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."};
91 cvar_t gl_info_extensions = {CVAR_READONLY, "gl_info_extensions", "", "indicates extension list found by engine, space separated."};
92 cvar_t gl_info_platform = {CVAR_READONLY, "gl_info_platform", "", "indicates GL platform: WGL, GLX, or AGL."};
93 cvar_t gl_info_driver = {CVAR_READONLY, "gl_info_driver", "", "name of driver library (opengl32.dll, libGL.so.1, or whatever)."};
95 // whether hardware gamma ramps are currently in effect
96 qboolean vid_usinghwgamma = false;
98 int vid_gammarampsize = 0;
99 unsigned short *vid_gammaramps = NULL;
100 unsigned short *vid_systemgammaramps = NULL;
102 cvar_t vid_fullscreen = {CVAR_SAVE, "vid_fullscreen", "1", "use fullscreen (1) or windowed (0)"};
103 cvar_t vid_width = {CVAR_SAVE, "vid_width", "640", "resolution"};
104 cvar_t vid_height = {CVAR_SAVE, "vid_height", "480", "resolution"};
105 cvar_t vid_bitsperpixel = {CVAR_SAVE, "vid_bitsperpixel", "32", "how many bits per pixel to render at (32 or 16, 32 is recommended)"};
106 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)"};
107 cvar_t vid_refreshrate = {CVAR_SAVE, "vid_refreshrate", "60", "refresh rate to use, in hz (higher values flicker less, if supported by your monitor)"};
108 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"};
109 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"};
111 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"};
112 cvar_t vid_mouse = {CVAR_SAVE, "vid_mouse", "1", "whether to use the mouse in windowed mode (fullscreen always does)"};
113 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)"};
114 cvar_t vid_minwidth = {0, "vid_minwidth", "0", "minimum vid_width that is acceptable (to be set in default.cfg in mods)"};
115 cvar_t vid_minheight = {0, "vid_minheight", "0", "minimum vid_height that is acceptable (to be set in default.cfg in mods)"};
116 cvar_t gl_combine = {0, "gl_combine", "1", "enables faster rendering using GL_ARB_texture_env_combine extension (part of OpenGL 1.3 and above)"};
117 cvar_t vid_gl13 = {0, "vid_gl13", "1", "enables faster rendering using OpenGL 1.3 features (such as GL_ARB_texture_env_combine extension)"};
118 cvar_t vid_gl20 = {0, "vid_gl20", "1", "enables faster rendering using OpenGL 2.0 features (such as GL_ARB_fragment_shader extension)"};
119 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)"};
121 cvar_t vid_stick_mouse = {CVAR_SAVE, "vid_stick_mouse", "0", "have the mouse stuck in the center of the screen" };
122 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" };
124 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"};
125 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)"};
126 cvar_t v_brightness = {CVAR_SAVE, "v_brightness", "0", "brightness of black, useful for monitors that are too dark"};
127 cvar_t v_contrastboost = {CVAR_SAVE, "v_contrastboost", "1", "by how much to multiply the contrast in dark areas (1 is no change)"};
128 cvar_t v_color_enable = {CVAR_SAVE, "v_color_enable", "0", "enables black-grey-white color correction curve controls"};
129 cvar_t v_color_black_r = {CVAR_SAVE, "v_color_black_r", "0", "desired color of black"};
130 cvar_t v_color_black_g = {CVAR_SAVE, "v_color_black_g", "0", "desired color of black"};
131 cvar_t v_color_black_b = {CVAR_SAVE, "v_color_black_b", "0", "desired color of black"};
132 cvar_t v_color_grey_r = {CVAR_SAVE, "v_color_grey_r", "0.5", "desired color of grey"};
133 cvar_t v_color_grey_g = {CVAR_SAVE, "v_color_grey_g", "0.5", "desired color of grey"};
134 cvar_t v_color_grey_b = {CVAR_SAVE, "v_color_grey_b", "0.5", "desired color of grey"};
135 cvar_t v_color_white_r = {CVAR_SAVE, "v_color_white_r", "1", "desired color of white"};
136 cvar_t v_color_white_g = {CVAR_SAVE, "v_color_white_g", "1", "desired color of white"};
137 cvar_t v_color_white_b = {CVAR_SAVE, "v_color_white_b", "1", "desired color of white"};
138 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"};
139 cvar_t v_glslgamma = {CVAR_SAVE, "v_glslgamma", "0", "enables use of GLSL to apply gamma correction ramps if available (note: overrides v_hwgamma)"};
140 cvar_t v_psycho = {0, "v_psycho", "0", "easter egg (does not work on Windows2000 or above)"};
142 // brand of graphics chip
143 const char *gl_vendor;
144 // graphics chip model and other information
145 const char *gl_renderer;
146 // begins with 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0
147 const char *gl_version;
148 // extensions list, space separated
149 const char *gl_extensions;
151 const char *gl_platform;
152 // another extensions list, containing platform-specific extensions that are
153 // not in the main list
154 const char *gl_platformextensions;
155 // name of driver library (opengl32.dll, libGL.so.1, or whatever)
158 // GL_ARB_multitexture
159 void (GLAPIENTRY *qglMultiTexCoord1f) (GLenum, GLfloat);
160 void (GLAPIENTRY *qglMultiTexCoord2f) (GLenum, GLfloat, GLfloat);
161 void (GLAPIENTRY *qglMultiTexCoord3f) (GLenum, GLfloat, GLfloat, GLfloat);
162 void (GLAPIENTRY *qglMultiTexCoord4f) (GLenum, GLfloat, GLfloat, GLfloat, GLfloat);
163 void (GLAPIENTRY *qglActiveTexture) (GLenum);
164 void (GLAPIENTRY *qglClientActiveTexture) (GLenum);
166 // GL_EXT_compiled_vertex_array
167 void (GLAPIENTRY *qglLockArraysEXT) (GLint first, GLint count);
168 void (GLAPIENTRY *qglUnlockArraysEXT) (void);
170 // general GL functions
172 void (GLAPIENTRY *qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
174 void (GLAPIENTRY *qglClear)(GLbitfield mask);
176 void (GLAPIENTRY *qglAlphaFunc)(GLenum func, GLclampf ref);
177 void (GLAPIENTRY *qglBlendFunc)(GLenum sfactor, GLenum dfactor);
178 void (GLAPIENTRY *qglCullFace)(GLenum mode);
180 void (GLAPIENTRY *qglDrawBuffer)(GLenum mode);
181 void (GLAPIENTRY *qglReadBuffer)(GLenum mode);
182 void (GLAPIENTRY *qglEnable)(GLenum cap);
183 void (GLAPIENTRY *qglDisable)(GLenum cap);
184 GLboolean (GLAPIENTRY *qglIsEnabled)(GLenum cap);
186 void (GLAPIENTRY *qglEnableClientState)(GLenum cap);
187 void (GLAPIENTRY *qglDisableClientState)(GLenum cap);
189 void (GLAPIENTRY *qglGetBooleanv)(GLenum pname, GLboolean *params);
190 void (GLAPIENTRY *qglGetDoublev)(GLenum pname, GLdouble *params);
191 void (GLAPIENTRY *qglGetFloatv)(GLenum pname, GLfloat *params);
192 void (GLAPIENTRY *qglGetIntegerv)(GLenum pname, GLint *params);
194 GLenum (GLAPIENTRY *qglGetError)(void);
195 const GLubyte* (GLAPIENTRY *qglGetString)(GLenum name);
196 void (GLAPIENTRY *qglFinish)(void);
197 void (GLAPIENTRY *qglFlush)(void);
199 void (GLAPIENTRY *qglClearDepth)(GLclampd depth);
200 void (GLAPIENTRY *qglDepthFunc)(GLenum func);
201 void (GLAPIENTRY *qglDepthMask)(GLboolean flag);
202 void (GLAPIENTRY *qglDepthRange)(GLclampd near_val, GLclampd far_val);
203 void (GLAPIENTRY *qglColorMask)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
205 void (GLAPIENTRY *qglDrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
206 void (GLAPIENTRY *qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
207 void (GLAPIENTRY *qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
208 void (GLAPIENTRY *qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *ptr);
209 void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
210 void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
211 void (GLAPIENTRY *qglArrayElement)(GLint i);
213 void (GLAPIENTRY *qglColor4f)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
214 void (GLAPIENTRY *qglTexCoord1f)(GLfloat s);
215 void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
216 void (GLAPIENTRY *qglTexCoord3f)(GLfloat s, GLfloat t, GLfloat r);
217 void (GLAPIENTRY *qglTexCoord4f)(GLfloat s, GLfloat t, GLfloat r, GLfloat q);
218 void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
219 void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
220 void (GLAPIENTRY *qglBegin)(GLenum mode);
221 void (GLAPIENTRY *qglEnd)(void);
223 void (GLAPIENTRY *qglMatrixMode)(GLenum mode);
224 void (GLAPIENTRY *qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
225 void (GLAPIENTRY *qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
226 void (GLAPIENTRY *qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
227 void (GLAPIENTRY *qglPushMatrix)(void);
228 void (GLAPIENTRY *qglPopMatrix)(void);
229 void (GLAPIENTRY *qglLoadIdentity)(void);
230 void (GLAPIENTRY *qglLoadMatrixd)(const GLdouble *m);
231 void (GLAPIENTRY *qglLoadMatrixf)(const GLfloat *m);
232 void (GLAPIENTRY *qglMultMatrixd)(const GLdouble *m);
233 void (GLAPIENTRY *qglMultMatrixf)(const GLfloat *m);
234 void (GLAPIENTRY *qglRotated)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
235 void (GLAPIENTRY *qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
236 void (GLAPIENTRY *qglScaled)(GLdouble x, GLdouble y, GLdouble z);
237 void (GLAPIENTRY *qglScalef)(GLfloat x, GLfloat y, GLfloat z);
238 void (GLAPIENTRY *qglTranslated)(GLdouble x, GLdouble y, GLdouble z);
239 void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
241 void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
243 void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
244 void (GLAPIENTRY *qglStencilMask)(GLuint mask);
245 void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
246 void (GLAPIENTRY *qglClearStencil)(GLint s);
248 void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
249 void (GLAPIENTRY *qglTexEnvfv)(GLenum target, GLenum pname, const GLfloat *params);
250 void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
251 void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
252 void (GLAPIENTRY *qglTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
253 void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
254 void (GLAPIENTRY *qglHint)(GLenum target, GLenum mode);
256 void (GLAPIENTRY *qglGenTextures)(GLsizei n, GLuint *textures);
257 void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
258 void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
259 //void (GLAPIENTRY *qglPrioritizeTextures)(GLsizei n, const GLuint *textures, const GLclampf *priorities);
260 //GLboolean (GLAPIENTRY *qglAreTexturesResident)(GLsizei n, const GLuint *textures, GLboolean *residences);
261 GLboolean (GLAPIENTRY *qglIsTexture)(GLuint texture);
262 void (GLAPIENTRY *qglPixelStoref)(GLenum pname, GLfloat param);
263 void (GLAPIENTRY *qglPixelStorei)(GLenum pname, GLint param);
265 //void (GLAPIENTRY *qglTexImage1D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
266 void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
267 //void (GLAPIENTRY *qglTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels);
268 void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
269 //void (GLAPIENTRY *qglCopyTexImage1D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
270 void (GLAPIENTRY *qglCopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
271 //void (GLAPIENTRY *qglCopyTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
272 void (GLAPIENTRY *qglCopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
275 void (GLAPIENTRY *qglDrawRangeElementsEXT)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
277 //void (GLAPIENTRY *qglColorTableEXT)(int, int, int, int, int, const void *);
279 void (GLAPIENTRY *qglTexImage3D)(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
280 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);
281 void (GLAPIENTRY *qglCopyTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
283 void (GLAPIENTRY *qglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
285 void (GLAPIENTRY *qglPolygonOffset)(GLfloat factor, GLfloat units);
286 void (GLAPIENTRY *qglPolygonMode)(GLenum face, GLenum mode);
287 void (GLAPIENTRY *qglPolygonStipple)(const GLubyte *mask);
289 void (GLAPIENTRY *qglClipPlane)(GLenum plane, const GLdouble *equation);
290 void (GLAPIENTRY *qglGetClipPlane)(GLenum plane, GLdouble *equation);
292 //[515]: added on 29.07.2005
293 void (GLAPIENTRY *qglLineWidth)(GLfloat width);
294 void (GLAPIENTRY *qglPointSize)(GLfloat size);
296 void (GLAPIENTRY *qglBlendEquationEXT)(GLenum);
298 void (GLAPIENTRY *qglStencilOpSeparate)(GLenum, GLenum, GLenum, GLenum);
299 void (GLAPIENTRY *qglStencilFuncSeparate)(GLenum, GLenum, GLint, GLuint);
300 void (GLAPIENTRY *qglActiveStencilFaceEXT)(GLenum);
302 void (GLAPIENTRY *qglDeleteObjectARB)(GLhandleARB obj);
303 GLhandleARB (GLAPIENTRY *qglGetHandleARB)(GLenum pname);
304 void (GLAPIENTRY *qglDetachObjectARB)(GLhandleARB containerObj, GLhandleARB attachedObj);
305 GLhandleARB (GLAPIENTRY *qglCreateShaderObjectARB)(GLenum shaderType);
306 void (GLAPIENTRY *qglShaderSourceARB)(GLhandleARB shaderObj, GLsizei count, const GLcharARB **string, const GLint *length);
307 void (GLAPIENTRY *qglCompileShaderARB)(GLhandleARB shaderObj);
308 GLhandleARB (GLAPIENTRY *qglCreateProgramObjectARB)(void);
309 void (GLAPIENTRY *qglAttachObjectARB)(GLhandleARB containerObj, GLhandleARB obj);
310 void (GLAPIENTRY *qglLinkProgramARB)(GLhandleARB programObj);
311 void (GLAPIENTRY *qglUseProgramObjectARB)(GLhandleARB programObj);
312 void (GLAPIENTRY *qglValidateProgramARB)(GLhandleARB programObj);
313 void (GLAPIENTRY *qglUniform1fARB)(GLint location, GLfloat v0);
314 void (GLAPIENTRY *qglUniform2fARB)(GLint location, GLfloat v0, GLfloat v1);
315 void (GLAPIENTRY *qglUniform3fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
316 void (GLAPIENTRY *qglUniform4fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
317 void (GLAPIENTRY *qglUniform1iARB)(GLint location, GLint v0);
318 void (GLAPIENTRY *qglUniform2iARB)(GLint location, GLint v0, GLint v1);
319 void (GLAPIENTRY *qglUniform3iARB)(GLint location, GLint v0, GLint v1, GLint v2);
320 void (GLAPIENTRY *qglUniform4iARB)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
321 void (GLAPIENTRY *qglUniform1fvARB)(GLint location, GLsizei count, const GLfloat *value);
322 void (GLAPIENTRY *qglUniform2fvARB)(GLint location, GLsizei count, const GLfloat *value);
323 void (GLAPIENTRY *qglUniform3fvARB)(GLint location, GLsizei count, const GLfloat *value);
324 void (GLAPIENTRY *qglUniform4fvARB)(GLint location, GLsizei count, const GLfloat *value);
325 void (GLAPIENTRY *qglUniform1ivARB)(GLint location, GLsizei count, const GLint *value);
326 void (GLAPIENTRY *qglUniform2ivARB)(GLint location, GLsizei count, const GLint *value);
327 void (GLAPIENTRY *qglUniform3ivARB)(GLint location, GLsizei count, const GLint *value);
328 void (GLAPIENTRY *qglUniform4ivARB)(GLint location, GLsizei count, const GLint *value);
329 void (GLAPIENTRY *qglUniformMatrix2fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
330 void (GLAPIENTRY *qglUniformMatrix3fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
331 void (GLAPIENTRY *qglUniformMatrix4fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
332 void (GLAPIENTRY *qglGetObjectParameterfvARB)(GLhandleARB obj, GLenum pname, GLfloat *params);
333 void (GLAPIENTRY *qglGetObjectParameterivARB)(GLhandleARB obj, GLenum pname, GLint *params);
334 void (GLAPIENTRY *qglGetInfoLogARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *infoLog);
335 void (GLAPIENTRY *qglGetAttachedObjectsARB)(GLhandleARB containerObj, GLsizei maxCount, GLsizei *count, GLhandleARB *obj);
336 GLint (GLAPIENTRY *qglGetUniformLocationARB)(GLhandleARB programObj, const GLcharARB *name);
337 void (GLAPIENTRY *qglGetActiveUniformARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
338 void (GLAPIENTRY *qglGetUniformfvARB)(GLhandleARB programObj, GLint location, GLfloat *params);
339 void (GLAPIENTRY *qglGetUniformivARB)(GLhandleARB programObj, GLint location, GLint *params);
340 void (GLAPIENTRY *qglGetShaderSourceARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *source);
342 //void (GLAPIENTRY *qglVertexAttrib1fARB)(GLuint index, GLfloat v0);
343 //void (GLAPIENTRY *qglVertexAttrib1sARB)(GLuint index, GLshort v0);
344 //void (GLAPIENTRY *qglVertexAttrib1dARB)(GLuint index, GLdouble v0);
345 //void (GLAPIENTRY *qglVertexAttrib2fARB)(GLuint index, GLfloat v0, GLfloat v1);
346 //void (GLAPIENTRY *qglVertexAttrib2sARB)(GLuint index, GLshort v0, GLshort v1);
347 //void (GLAPIENTRY *qglVertexAttrib2dARB)(GLuint index, GLdouble v0, GLdouble v1);
348 //void (GLAPIENTRY *qglVertexAttrib3fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2);
349 //void (GLAPIENTRY *qglVertexAttrib3sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2);
350 //void (GLAPIENTRY *qglVertexAttrib3dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2);
351 //void (GLAPIENTRY *qglVertexAttrib4fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
352 //void (GLAPIENTRY *qglVertexAttrib4sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2, GLshort v3);
353 //void (GLAPIENTRY *qglVertexAttrib4dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2, GLdouble v3);
354 //void (GLAPIENTRY *qglVertexAttrib4NubARB)(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
355 //void (GLAPIENTRY *qglVertexAttrib1fvARB)(GLuint index, const GLfloat *v);
356 //void (GLAPIENTRY *qglVertexAttrib1svARB)(GLuint index, const GLshort *v);
357 //void (GLAPIENTRY *qglVertexAttrib1dvARB)(GLuint index, const GLdouble *v);
358 //void (GLAPIENTRY *qglVertexAttrib2fvARB)(GLuint index, const GLfloat *v);
359 //void (GLAPIENTRY *qglVertexAttrib2svARB)(GLuint index, const GLshort *v);
360 //void (GLAPIENTRY *qglVertexAttrib2dvARB)(GLuint index, const GLdouble *v);
361 //void (GLAPIENTRY *qglVertexAttrib3fvARB)(GLuint index, const GLfloat *v);
362 //void (GLAPIENTRY *qglVertexAttrib3svARB)(GLuint index, const GLshort *v);
363 //void (GLAPIENTRY *qglVertexAttrib3dvARB)(GLuint index, const GLdouble *v);
364 //void (GLAPIENTRY *qglVertexAttrib4fvARB)(GLuint index, const GLfloat *v);
365 //void (GLAPIENTRY *qglVertexAttrib4svARB)(GLuint index, const GLshort *v);
366 //void (GLAPIENTRY *qglVertexAttrib4dvARB)(GLuint index, const GLdouble *v);
367 //void (GLAPIENTRY *qglVertexAttrib4ivARB)(GLuint index, const GLint *v);
368 //void (GLAPIENTRY *qglVertexAttrib4bvARB)(GLuint index, const GLbyte *v);
369 //void (GLAPIENTRY *qglVertexAttrib4ubvARB)(GLuint index, const GLubyte *v);
370 //void (GLAPIENTRY *qglVertexAttrib4usvARB)(GLuint index, const GLushort *v);
371 //void (GLAPIENTRY *qglVertexAttrib4uivARB)(GLuint index, const GLuint *v);
372 //void (GLAPIENTRY *qglVertexAttrib4NbvARB)(GLuint index, const GLbyte *v);
373 //void (GLAPIENTRY *qglVertexAttrib4NsvARB)(GLuint index, const GLshort *v);
374 //void (GLAPIENTRY *qglVertexAttrib4NivARB)(GLuint index, const GLint *v);
375 //void (GLAPIENTRY *qglVertexAttrib4NubvARB)(GLuint index, const GLubyte *v);
376 //void (GLAPIENTRY *qglVertexAttrib4NusvARB)(GLuint index, const GLushort *v);
377 //void (GLAPIENTRY *qglVertexAttrib4NuivARB)(GLuint index, const GLuint *v);
378 void (GLAPIENTRY *qglVertexAttribPointerARB)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
379 void (GLAPIENTRY *qglEnableVertexAttribArrayARB)(GLuint index);
380 void (GLAPIENTRY *qglDisableVertexAttribArrayARB)(GLuint index);
381 void (GLAPIENTRY *qglBindAttribLocationARB)(GLhandleARB programObj, GLuint index, const GLcharARB *name);
382 void (GLAPIENTRY *qglGetActiveAttribARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
383 GLint (GLAPIENTRY *qglGetAttribLocationARB)(GLhandleARB programObj, const GLcharARB *name);
384 //void (GLAPIENTRY *qglGetVertexAttribdvARB)(GLuint index, GLenum pname, GLdouble *params);
385 //void (GLAPIENTRY *qglGetVertexAttribfvARB)(GLuint index, GLenum pname, GLfloat *params);
386 //void (GLAPIENTRY *qglGetVertexAttribivARB)(GLuint index, GLenum pname, GLint *params);
387 //void (GLAPIENTRY *qglGetVertexAttribPointervARB)(GLuint index, GLenum pname, GLvoid **pointer);
389 //GL_ARB_vertex_buffer_object
390 void (GLAPIENTRY *qglBindBufferARB) (GLenum target, GLuint buffer);
391 void (GLAPIENTRY *qglDeleteBuffersARB) (GLsizei n, const GLuint *buffers);
392 void (GLAPIENTRY *qglGenBuffersARB) (GLsizei n, GLuint *buffers);
393 GLboolean (GLAPIENTRY *qglIsBufferARB) (GLuint buffer);
394 GLvoid* (GLAPIENTRY *qglMapBufferARB) (GLenum target, GLenum access);
395 GLboolean (GLAPIENTRY *qglUnmapBufferARB) (GLenum target);
396 void (GLAPIENTRY *qglBufferDataARB) (GLenum target, GLsizeiptrARB size, const GLvoid *data, GLenum usage);
397 void (GLAPIENTRY *qglBufferSubDataARB) (GLenum target, GLintptrARB offset, GLsizeiptrARB size, const GLvoid *data);
399 //GL_EXT_framebuffer_object
400 GLboolean (GLAPIENTRY *qglIsRenderbufferEXT)(GLuint renderbuffer);
401 void (GLAPIENTRY *qglBindRenderbufferEXT)(GLenum target, GLuint renderbuffer);
402 void (GLAPIENTRY *qglDeleteRenderbuffersEXT)(GLsizei n, const GLuint *renderbuffers);
403 void (GLAPIENTRY *qglGenRenderbuffersEXT)(GLsizei n, GLuint *renderbuffers);
404 void (GLAPIENTRY *qglRenderbufferStorageEXT)(GLenum target, GLenum internalformat, GLsizei width, GLsizei height);
405 void (GLAPIENTRY *qglGetRenderbufferParameterivEXT)(GLenum target, GLenum pname, GLint *params);
406 GLboolean (GLAPIENTRY *qglIsFramebufferEXT)(GLuint framebuffer);
407 void (GLAPIENTRY *qglBindFramebufferEXT)(GLenum target, GLuint framebuffer);
408 void (GLAPIENTRY *qglDeleteFramebuffersEXT)(GLsizei n, const GLuint *framebuffers);
409 void (GLAPIENTRY *qglGenFramebuffersEXT)(GLsizei n, GLuint *framebuffers);
410 GLenum (GLAPIENTRY *qglCheckFramebufferStatusEXT)(GLenum target);
411 //void (GLAPIENTRY *qglFramebufferTexture1DEXT)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
412 void (GLAPIENTRY *qglFramebufferTexture2DEXT)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
413 void (GLAPIENTRY *qglFramebufferTexture3DEXT)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset);
414 void (GLAPIENTRY *qglFramebufferRenderbufferEXT)(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer);
415 void (GLAPIENTRY *qglGetFramebufferAttachmentParameterivEXT)(GLenum target, GLenum attachment, GLenum pname, GLint *params);
416 void (GLAPIENTRY *qglGenerateMipmapEXT)(GLenum target);
418 void (GLAPIENTRY *qglCompressedTexImage3DARB)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const void *data);
419 void (GLAPIENTRY *qglCompressedTexImage2DARB)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void *data);
420 //void (GLAPIENTRY *qglCompressedTexImage1DARB)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLint border, GLsizei imageSize, const void *data);
421 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);
422 void (GLAPIENTRY *qglCompressedTexSubImage2DARB)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *data);
423 //void (GLAPIENTRY *qglCompressedTexSubImage1DARB)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const void *data);
424 void (GLAPIENTRY *qglGetCompressedTexImageARB)(GLenum target, GLint lod, void *img);
426 void (GLAPIENTRY *qglGenQueriesARB)(GLsizei n, GLuint *ids);
427 void (GLAPIENTRY *qglDeleteQueriesARB)(GLsizei n, const GLuint *ids);
428 GLboolean (GLAPIENTRY *qglIsQueryARB)(GLuint qid);
429 void (GLAPIENTRY *qglBeginQueryARB)(GLenum target, GLuint qid);
430 void (GLAPIENTRY *qglEndQueryARB)(GLenum target);
431 void (GLAPIENTRY *qglGetQueryivARB)(GLenum target, GLenum pname, GLint *params);
432 void (GLAPIENTRY *qglGetQueryObjectivARB)(GLuint qid, GLenum pname, GLint *params);
433 void (GLAPIENTRY *qglGetQueryObjectuivARB)(GLuint qid, GLenum pname, GLuint *params);
436 #define sscanf sscanf_s
439 int GL_CheckExtension(const char *minglver_or_ext, const dllfunction_t *funcs, const char *disableparm, int silent)
442 const dllfunction_t *func;
443 struct { int major, minor; } min_version, curr_version;
444 char extstr[MAX_INPUTLINE];
447 if(sscanf(minglver_or_ext, "%d.%d", &min_version.major, &min_version.minor) == 2)
448 ext = 0; // opengl version
449 else if(minglver_or_ext[0] != toupper(minglver_or_ext[0]))
450 ext = -1; // pseudo name
452 ext = 1; // extension name
455 Con_DPrintf("checking for %s... ", minglver_or_ext);
457 Con_DPrintf("checking for OpenGL %s core features... ", minglver_or_ext);
459 for (func = funcs;func && func->name;func++)
460 *func->funcvariable = NULL;
462 if (disableparm && (COM_CheckParm(disableparm) || COM_CheckParm("-safe")))
464 Con_DPrint("disabled by commandline\n");
468 if (ext == 1) // opengl extension
470 if (!strstr(gl_extensions ? gl_extensions : "", minglver_or_ext) && !strstr(gl_platformextensions ? gl_platformextensions : "", minglver_or_ext))
472 Con_DPrint("not detected\n");
477 if(ext == 0) // opengl version
479 sscanf(gl_version, "%d.%d", &curr_version.major, &curr_version.minor);
481 if (curr_version.major < min_version.major || (curr_version.major == min_version.major && curr_version.minor < min_version.minor))
483 Con_DPrintf("not detected (OpenGL %d.%d loaded)\n", curr_version.major, curr_version.minor);
488 for (func = funcs;func && func->name != NULL;func++)
490 // Con_DPrintf("\n %s... ", func->name);
492 // functions are cleared before all the extensions are evaluated
493 if (!(*func->funcvariable = (void *) GL_GetProcAddress(func->name)))
498 Con_DPrintf("%s is missing function \"%s\" - broken driver!\n", minglver_or_ext, func->name);
500 Con_DPrintf("OpenGL %s core features are missing function \"%s\" - broken driver!\n", minglver_or_ext, func->name);
505 // delay the return so it prints all missing functions
508 // VorteX: add to found extension list
509 dpsnprintf(extstr, sizeof(extstr), "%s %s ", gl_info_extensions.string, minglver_or_ext);
510 Cvar_SetQuick(&gl_info_extensions, extstr);
512 Con_DPrint("enabled\n");
516 static dllfunction_t opengl110funcs[] =
518 {"glClearColor", (void **) &qglClearColor},
519 {"glClear", (void **) &qglClear},
520 {"glAlphaFunc", (void **) &qglAlphaFunc},
521 {"glBlendFunc", (void **) &qglBlendFunc},
522 {"glCullFace", (void **) &qglCullFace},
523 {"glDrawBuffer", (void **) &qglDrawBuffer},
524 {"glReadBuffer", (void **) &qglReadBuffer},
525 {"glEnable", (void **) &qglEnable},
526 {"glDisable", (void **) &qglDisable},
527 {"glIsEnabled", (void **) &qglIsEnabled},
528 {"glEnableClientState", (void **) &qglEnableClientState},
529 {"glDisableClientState", (void **) &qglDisableClientState},
530 {"glGetBooleanv", (void **) &qglGetBooleanv},
531 {"glGetDoublev", (void **) &qglGetDoublev},
532 {"glGetFloatv", (void **) &qglGetFloatv},
533 {"glGetIntegerv", (void **) &qglGetIntegerv},
534 {"glGetError", (void **) &qglGetError},
535 {"glGetString", (void **) &qglGetString},
536 {"glFinish", (void **) &qglFinish},
537 {"glFlush", (void **) &qglFlush},
538 {"glClearDepth", (void **) &qglClearDepth},
539 {"glDepthFunc", (void **) &qglDepthFunc},
540 {"glDepthMask", (void **) &qglDepthMask},
541 {"glDepthRange", (void **) &qglDepthRange},
542 {"glDrawElements", (void **) &qglDrawElements},
543 {"glColorMask", (void **) &qglColorMask},
544 {"glVertexPointer", (void **) &qglVertexPointer},
545 {"glNormalPointer", (void **) &qglNormalPointer},
546 {"glColorPointer", (void **) &qglColorPointer},
547 {"glTexCoordPointer", (void **) &qglTexCoordPointer},
548 {"glArrayElement", (void **) &qglArrayElement},
549 {"glColor4f", (void **) &qglColor4f},
550 {"glTexCoord1f", (void **) &qglTexCoord1f},
551 {"glTexCoord2f", (void **) &qglTexCoord2f},
552 {"glTexCoord3f", (void **) &qglTexCoord3f},
553 {"glTexCoord4f", (void **) &qglTexCoord4f},
554 {"glVertex2f", (void **) &qglVertex2f},
555 {"glVertex3f", (void **) &qglVertex3f},
556 {"glBegin", (void **) &qglBegin},
557 {"glEnd", (void **) &qglEnd},
558 //[515]: added on 29.07.2005
559 {"glLineWidth", (void**) &qglLineWidth},
560 {"glPointSize", (void**) &qglPointSize},
562 {"glMatrixMode", (void **) &qglMatrixMode},
563 {"glOrtho", (void **) &qglOrtho},
564 {"glFrustum", (void **) &qglFrustum},
565 {"glViewport", (void **) &qglViewport},
566 {"glPushMatrix", (void **) &qglPushMatrix},
567 {"glPopMatrix", (void **) &qglPopMatrix},
568 {"glLoadIdentity", (void **) &qglLoadIdentity},
569 {"glLoadMatrixd", (void **) &qglLoadMatrixd},
570 {"glLoadMatrixf", (void **) &qglLoadMatrixf},
571 {"glMultMatrixd", (void **) &qglMultMatrixd},
572 {"glMultMatrixf", (void **) &qglMultMatrixf},
573 {"glRotated", (void **) &qglRotated},
574 {"glRotatef", (void **) &qglRotatef},
575 {"glScaled", (void **) &qglScaled},
576 {"glScalef", (void **) &qglScalef},
577 {"glTranslated", (void **) &qglTranslated},
578 {"glTranslatef", (void **) &qglTranslatef},
579 {"glReadPixels", (void **) &qglReadPixels},
580 {"glStencilFunc", (void **) &qglStencilFunc},
581 {"glStencilMask", (void **) &qglStencilMask},
582 {"glStencilOp", (void **) &qglStencilOp},
583 {"glClearStencil", (void **) &qglClearStencil},
584 {"glTexEnvf", (void **) &qglTexEnvf},
585 {"glTexEnvfv", (void **) &qglTexEnvfv},
586 {"glTexEnvi", (void **) &qglTexEnvi},
587 {"glTexParameterf", (void **) &qglTexParameterf},
588 {"glTexParameterfv", (void **) &qglTexParameterfv},
589 {"glTexParameteri", (void **) &qglTexParameteri},
590 {"glHint", (void **) &qglHint},
591 {"glPixelStoref", (void **) &qglPixelStoref},
592 {"glPixelStorei", (void **) &qglPixelStorei},
593 {"glGenTextures", (void **) &qglGenTextures},
594 {"glDeleteTextures", (void **) &qglDeleteTextures},
595 {"glBindTexture", (void **) &qglBindTexture},
596 // {"glPrioritizeTextures", (void **) &qglPrioritizeTextures},
597 // {"glAreTexturesResident", (void **) &qglAreTexturesResident},
598 {"glIsTexture", (void **) &qglIsTexture},
599 // {"glTexImage1D", (void **) &qglTexImage1D},
600 {"glTexImage2D", (void **) &qglTexImage2D},
601 // {"glTexSubImage1D", (void **) &qglTexSubImage1D},
602 {"glTexSubImage2D", (void **) &qglTexSubImage2D},
603 // {"glCopyTexImage1D", (void **) &qglCopyTexImage1D},
604 {"glCopyTexImage2D", (void **) &qglCopyTexImage2D},
605 // {"glCopyTexSubImage1D", (void **) &qglCopyTexSubImage1D},
606 {"glCopyTexSubImage2D", (void **) &qglCopyTexSubImage2D},
607 {"glScissor", (void **) &qglScissor},
608 {"glPolygonOffset", (void **) &qglPolygonOffset},
609 {"glPolygonMode", (void **) &qglPolygonMode},
610 {"glPolygonStipple", (void **) &qglPolygonStipple},
611 {"glClipPlane", (void **) &qglClipPlane},
612 {"glGetClipPlane", (void **) &qglGetClipPlane},
616 static dllfunction_t drawrangeelementsfuncs[] =
618 {"glDrawRangeElements", (void **) &qglDrawRangeElements},
622 static dllfunction_t drawrangeelementsextfuncs[] =
624 {"glDrawRangeElementsEXT", (void **) &qglDrawRangeElementsEXT},
628 static dllfunction_t multitexturefuncs[] =
630 {"glMultiTexCoord1fARB", (void **) &qglMultiTexCoord1f},
631 {"glMultiTexCoord2fARB", (void **) &qglMultiTexCoord2f},
632 {"glMultiTexCoord3fARB", (void **) &qglMultiTexCoord3f},
633 {"glMultiTexCoord4fARB", (void **) &qglMultiTexCoord4f},
634 {"glActiveTextureARB", (void **) &qglActiveTexture},
635 {"glClientActiveTextureARB", (void **) &qglClientActiveTexture},
639 static dllfunction_t compiledvertexarrayfuncs[] =
641 {"glLockArraysEXT", (void **) &qglLockArraysEXT},
642 {"glUnlockArraysEXT", (void **) &qglUnlockArraysEXT},
646 static dllfunction_t texture3dextfuncs[] =
648 {"glTexImage3DEXT", (void **) &qglTexImage3D},
649 {"glTexSubImage3DEXT", (void **) &qglTexSubImage3D},
650 {"glCopyTexSubImage3DEXT", (void **) &qglCopyTexSubImage3D},
654 static dllfunction_t atiseparatestencilfuncs[] =
656 {"glStencilOpSeparateATI", (void **) &qglStencilOpSeparate},
657 {"glStencilFuncSeparateATI", (void **) &qglStencilFuncSeparate},
661 static dllfunction_t gl2separatestencilfuncs[] =
663 {"glStencilOpSeparate", (void **) &qglStencilOpSeparate},
664 {"glStencilFuncSeparate", (void **) &qglStencilFuncSeparate},
668 static dllfunction_t stenciltwosidefuncs[] =
670 {"glActiveStencilFaceEXT", (void **) &qglActiveStencilFaceEXT},
674 static dllfunction_t blendequationfuncs[] =
676 {"glBlendEquationEXT", (void **) &qglBlendEquationEXT},
680 static dllfunction_t shaderobjectsfuncs[] =
682 {"glDeleteObjectARB", (void **) &qglDeleteObjectARB},
683 {"glGetHandleARB", (void **) &qglGetHandleARB},
684 {"glDetachObjectARB", (void **) &qglDetachObjectARB},
685 {"glCreateShaderObjectARB", (void **) &qglCreateShaderObjectARB},
686 {"glShaderSourceARB", (void **) &qglShaderSourceARB},
687 {"glCompileShaderARB", (void **) &qglCompileShaderARB},
688 {"glCreateProgramObjectARB", (void **) &qglCreateProgramObjectARB},
689 {"glAttachObjectARB", (void **) &qglAttachObjectARB},
690 {"glLinkProgramARB", (void **) &qglLinkProgramARB},
691 {"glUseProgramObjectARB", (void **) &qglUseProgramObjectARB},
692 {"glValidateProgramARB", (void **) &qglValidateProgramARB},
693 {"glUniform1fARB", (void **) &qglUniform1fARB},
694 {"glUniform2fARB", (void **) &qglUniform2fARB},
695 {"glUniform3fARB", (void **) &qglUniform3fARB},
696 {"glUniform4fARB", (void **) &qglUniform4fARB},
697 {"glUniform1iARB", (void **) &qglUniform1iARB},
698 {"glUniform2iARB", (void **) &qglUniform2iARB},
699 {"glUniform3iARB", (void **) &qglUniform3iARB},
700 {"glUniform4iARB", (void **) &qglUniform4iARB},
701 {"glUniform1fvARB", (void **) &qglUniform1fvARB},
702 {"glUniform2fvARB", (void **) &qglUniform2fvARB},
703 {"glUniform3fvARB", (void **) &qglUniform3fvARB},
704 {"glUniform4fvARB", (void **) &qglUniform4fvARB},
705 {"glUniform1ivARB", (void **) &qglUniform1ivARB},
706 {"glUniform2ivARB", (void **) &qglUniform2ivARB},
707 {"glUniform3ivARB", (void **) &qglUniform3ivARB},
708 {"glUniform4ivARB", (void **) &qglUniform4ivARB},
709 {"glUniformMatrix2fvARB", (void **) &qglUniformMatrix2fvARB},
710 {"glUniformMatrix3fvARB", (void **) &qglUniformMatrix3fvARB},
711 {"glUniformMatrix4fvARB", (void **) &qglUniformMatrix4fvARB},
712 {"glGetObjectParameterfvARB", (void **) &qglGetObjectParameterfvARB},
713 {"glGetObjectParameterivARB", (void **) &qglGetObjectParameterivARB},
714 {"glGetInfoLogARB", (void **) &qglGetInfoLogARB},
715 {"glGetAttachedObjectsARB", (void **) &qglGetAttachedObjectsARB},
716 {"glGetUniformLocationARB", (void **) &qglGetUniformLocationARB},
717 {"glGetActiveUniformARB", (void **) &qglGetActiveUniformARB},
718 {"glGetUniformfvARB", (void **) &qglGetUniformfvARB},
719 {"glGetUniformivARB", (void **) &qglGetUniformivARB},
720 {"glGetShaderSourceARB", (void **) &qglGetShaderSourceARB},
724 static dllfunction_t vertexshaderfuncs[] =
726 // {"glVertexAttrib1fARB", (void **) &qglVertexAttrib1fARB},
727 // {"glVertexAttrib1sARB", (void **) &qglVertexAttrib1sARB},
728 // {"glVertexAttrib1dARB", (void **) &qglVertexAttrib1dARB},
729 // {"glVertexAttrib2fARB", (void **) &qglVertexAttrib2fARB},
730 // {"glVertexAttrib2sARB", (void **) &qglVertexAttrib2sARB},
731 // {"glVertexAttrib2dARB", (void **) &qglVertexAttrib2dARB},
732 // {"glVertexAttrib3fARB", (void **) &qglVertexAttrib3fARB},
733 // {"glVertexAttrib3sARB", (void **) &qglVertexAttrib3sARB},
734 // {"glVertexAttrib3dARB", (void **) &qglVertexAttrib3dARB},
735 // {"glVertexAttrib4fARB", (void **) &qglVertexAttrib4fARB},
736 // {"glVertexAttrib4sARB", (void **) &qglVertexAttrib4sARB},
737 // {"glVertexAttrib4dARB", (void **) &qglVertexAttrib4dARB},
738 // {"glVertexAttrib4NubARB", (void **) &qglVertexAttrib4NubARB},
739 // {"glVertexAttrib1fvARB", (void **) &qglVertexAttrib1fvARB},
740 // {"glVertexAttrib1svARB", (void **) &qglVertexAttrib1svARB},
741 // {"glVertexAttrib1dvARB", (void **) &qglVertexAttrib1dvARB},
742 // {"glVertexAttrib2fvARB", (void **) &qglVertexAttrib1fvARB},
743 // {"glVertexAttrib2svARB", (void **) &qglVertexAttrib1svARB},
744 // {"glVertexAttrib2dvARB", (void **) &qglVertexAttrib1dvARB},
745 // {"glVertexAttrib3fvARB", (void **) &qglVertexAttrib1fvARB},
746 // {"glVertexAttrib3svARB", (void **) &qglVertexAttrib1svARB},
747 // {"glVertexAttrib3dvARB", (void **) &qglVertexAttrib1dvARB},
748 // {"glVertexAttrib4fvARB", (void **) &qglVertexAttrib1fvARB},
749 // {"glVertexAttrib4svARB", (void **) &qglVertexAttrib1svARB},
750 // {"glVertexAttrib4dvARB", (void **) &qglVertexAttrib1dvARB},
751 // {"glVertexAttrib4ivARB", (void **) &qglVertexAttrib1ivARB},
752 // {"glVertexAttrib4bvARB", (void **) &qglVertexAttrib1bvARB},
753 // {"glVertexAttrib4ubvARB", (void **) &qglVertexAttrib1ubvARB},
754 // {"glVertexAttrib4usvARB", (void **) &qglVertexAttrib1usvARB},
755 // {"glVertexAttrib4uivARB", (void **) &qglVertexAttrib1uivARB},
756 // {"glVertexAttrib4NbvARB", (void **) &qglVertexAttrib1NbvARB},
757 // {"glVertexAttrib4NsvARB", (void **) &qglVertexAttrib1NsvARB},
758 // {"glVertexAttrib4NivARB", (void **) &qglVertexAttrib1NivARB},
759 // {"glVertexAttrib4NubvARB", (void **) &qglVertexAttrib1NubvARB},
760 // {"glVertexAttrib4NusvARB", (void **) &qglVertexAttrib1NusvARB},
761 // {"glVertexAttrib4NuivARB", (void **) &qglVertexAttrib1NuivARB},
762 {"glVertexAttribPointerARB", (void **) &qglVertexAttribPointerARB},
763 {"glEnableVertexAttribArrayARB", (void **) &qglEnableVertexAttribArrayARB},
764 {"glDisableVertexAttribArrayARB", (void **) &qglDisableVertexAttribArrayARB},
765 {"glBindAttribLocationARB", (void **) &qglBindAttribLocationARB},
766 {"glGetActiveAttribARB", (void **) &qglGetActiveAttribARB},
767 {"glGetAttribLocationARB", (void **) &qglGetAttribLocationARB},
768 // {"glGetVertexAttribdvARB", (void **) &qglGetVertexAttribdvARB},
769 // {"glGetVertexAttribfvARB", (void **) &qglGetVertexAttribfvARB},
770 // {"glGetVertexAttribivARB", (void **) &qglGetVertexAttribivARB},
771 // {"glGetVertexAttribPointervARB", (void **) &qglGetVertexAttribPointervARB},
775 static dllfunction_t vbofuncs[] =
777 {"glBindBufferARB" , (void **) &qglBindBufferARB},
778 {"glDeleteBuffersARB" , (void **) &qglDeleteBuffersARB},
779 {"glGenBuffersARB" , (void **) &qglGenBuffersARB},
780 {"glIsBufferARB" , (void **) &qglIsBufferARB},
781 {"glMapBufferARB" , (void **) &qglMapBufferARB},
782 {"glUnmapBufferARB" , (void **) &qglUnmapBufferARB},
783 {"glBufferDataARB" , (void **) &qglBufferDataARB},
784 {"glBufferSubDataARB" , (void **) &qglBufferSubDataARB},
788 static dllfunction_t fbofuncs[] =
790 {"glIsRenderbufferEXT" , (void **) &qglIsRenderbufferEXT},
791 {"glBindRenderbufferEXT" , (void **) &qglBindRenderbufferEXT},
792 {"glDeleteRenderbuffersEXT" , (void **) &qglDeleteRenderbuffersEXT},
793 {"glGenRenderbuffersEXT" , (void **) &qglGenRenderbuffersEXT},
794 {"glRenderbufferStorageEXT" , (void **) &qglRenderbufferStorageEXT},
795 {"glGetRenderbufferParameterivEXT" , (void **) &qglGetRenderbufferParameterivEXT},
796 {"glIsFramebufferEXT" , (void **) &qglIsFramebufferEXT},
797 {"glBindFramebufferEXT" , (void **) &qglBindFramebufferEXT},
798 {"glDeleteFramebuffersEXT" , (void **) &qglDeleteFramebuffersEXT},
799 {"glGenFramebuffersEXT" , (void **) &qglGenFramebuffersEXT},
800 {"glCheckFramebufferStatusEXT" , (void **) &qglCheckFramebufferStatusEXT},
801 // {"glFramebufferTexture1DEXT" , (void **) &qglFramebufferTexture1DEXT},
802 {"glFramebufferTexture2DEXT" , (void **) &qglFramebufferTexture2DEXT},
803 {"glFramebufferTexture3DEXT" , (void **) &qglFramebufferTexture3DEXT},
804 {"glFramebufferRenderbufferEXT" , (void **) &qglFramebufferRenderbufferEXT},
805 {"glGetFramebufferAttachmentParameterivEXT" , (void **) &qglGetFramebufferAttachmentParameterivEXT},
806 {"glGenerateMipmapEXT" , (void **) &qglGenerateMipmapEXT},
810 static dllfunction_t texturecompressionfuncs[] =
812 {"glCompressedTexImage3DARB", (void **) &qglCompressedTexImage3DARB},
813 {"glCompressedTexImage2DARB", (void **) &qglCompressedTexImage2DARB},
814 // {"glCompressedTexImage1DARB", (void **) &qglCompressedTexImage1DARB},
815 {"glCompressedTexSubImage3DARB", (void **) &qglCompressedTexSubImage3DARB},
816 {"glCompressedTexSubImage2DARB", (void **) &qglCompressedTexSubImage2DARB},
817 // {"glCompressedTexSubImage1DARB", (void **) &qglCompressedTexSubImage1DARB},
818 {"glGetCompressedTexImageARB", (void **) &qglGetCompressedTexImageARB},
822 static dllfunction_t occlusionqueryfuncs[] =
824 {"glGenQueriesARB", (void **) &qglGenQueriesARB},
825 {"glDeleteQueriesARB", (void **) &qglDeleteQueriesARB},
826 {"glIsQueryARB", (void **) &qglIsQueryARB},
827 {"glBeginQueryARB", (void **) &qglBeginQueryARB},
828 {"glEndQueryARB", (void **) &qglEndQueryARB},
829 {"glGetQueryivARB", (void **) &qglGetQueryivARB},
830 {"glGetQueryObjectivARB", (void **) &qglGetQueryObjectivARB},
831 {"glGetQueryObjectuivARB", (void **) &qglGetQueryObjectuivARB},
835 void VID_CheckExtensions(void)
837 // clear the extension flags
838 memset(&vid.support, 0, sizeof(vid.support));
840 // VorteX: reset extensions info cvar, it got filled by GL_CheckExtension
841 Cvar_SetQuick(&gl_info_extensions, "");
842 if (!GL_CheckExtension("1.1", opengl110funcs, NULL, false))
843 Sys_Error("OpenGL 1.1.0 functions not found");
847 Con_DPrint("Checking OpenGL extensions...\n");
849 vid.support.amd_texture_texture4 = GL_CheckExtension("GL_AMD_texture_texture4", NULL, "-notexture4", false);
850 vid.support.arb_depth_texture = GL_CheckExtension("GL_ARB_depth_texture", NULL, "-nodepthtexture", false);
851 vid.support.arb_fragment_shader = GL_CheckExtension("GL_ARB_fragment_shader", NULL, "-nofragmentshader", false);
852 vid.support.arb_multitexture = GL_CheckExtension("GL_ARB_multitexture", multitexturefuncs, "-nomtex", false);
853 vid.support.arb_occlusion_query = GL_CheckExtension("GL_ARB_occlusion_query", occlusionqueryfuncs, "-noocclusionquery", false);
854 vid.support.arb_shader_objects = GL_CheckExtension("GL_ARB_shader_objects", shaderobjectsfuncs, "-noshaderobjects", false);
855 vid.support.arb_shading_language_100 = GL_CheckExtension("GL_ARB_shading_language_100", NULL, "-noshadinglanguage100", false);
856 vid.support.arb_shadow = GL_CheckExtension("GL_ARB_shadow", NULL, "-noshadow", false);
857 vid.support.arb_texture_compression = GL_CheckExtension("GL_ARB_texture_compression", texturecompressionfuncs, "-notexturecompression", false);
858 vid.support.arb_texture_cube_map = GL_CheckExtension("GL_ARB_texture_cube_map", NULL, "-nocubemap", false);
859 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);
860 vid.support.arb_texture_gather = GL_CheckExtension("GL_ARB_texture_gather", NULL, "-notexturegather", false);
861 vid.support.arb_texture_non_power_of_two = GL_CheckExtension("GL_ARB_texture_non_power_of_two", NULL, "-notexturenonpoweroftwo", false);
862 vid.support.arb_texture_rectangle = GL_CheckExtension("GL_ARB_texture_rectangle", NULL, "-norectangle", false);
863 vid.support.arb_vertex_buffer_object = GL_CheckExtension("GL_ARB_vertex_buffer_object", vbofuncs, "-novbo", false);
864 vid.support.arb_vertex_shader = GL_CheckExtension("GL_ARB_vertex_shader", vertexshaderfuncs, "-novertexshader", false);
865 vid.support.ati_separate_stencil = GL_CheckExtension("2.0", gl2separatestencilfuncs, "-noseparatestencil", true) || GL_CheckExtension("GL_ATI_separate_stencil", atiseparatestencilfuncs, "-noseparatestencil", false);
866 vid.support.ext_blend_minmax = GL_CheckExtension("GL_EXT_blend_minmax", blendequationfuncs, "-noblendminmax", false);
867 vid.support.ext_blend_subtract = GL_CheckExtension("GL_EXT_blend_subtract", blendequationfuncs, "-noblendsubtract", false);
868 vid.support.ext_compiled_vertex_array = GL_CheckExtension("GL_EXT_compiled_vertex_array", compiledvertexarrayfuncs, "-nocva", false);
869 vid.support.ext_draw_range_elements = GL_CheckExtension("1.2", drawrangeelementsfuncs, "-nodrawrangeelements", true) || GL_CheckExtension("GL_EXT_draw_range_elements", drawrangeelementsextfuncs, "-nodrawrangeelements", false);
870 vid.support.ext_framebuffer_object = GL_CheckExtension("GL_EXT_framebuffer_object", fbofuncs, "-nofbo", false);
871 vid.support.ext_stencil_two_side = GL_CheckExtension("GL_EXT_stencil_two_side", stenciltwosidefuncs, "-nostenciltwoside", false);
872 vid.support.ext_texture_3d = GL_CheckExtension("GL_EXT_texture3D", texture3dextfuncs, "-notexture3d", false);
873 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);
874 vid.support.ext_texture_filter_anisotropic = GL_CheckExtension("GL_EXT_texture_filter_anisotropic", NULL, "-noanisotropy", false);
875 vid.support.nv_blend_square = GL_CheckExtension("GL_NV_blend_square", NULL, "-noblendsquare", false);
876 // COMMANDLINEOPTION: GL: -noanisotropy disables GL_EXT_texture_filter_anisotropic (allows higher quality texturing)
877 // COMMANDLINEOPTION: GL: -noblendminmax disables GL_EXT_blend_minmax
878 // COMMANDLINEOPTION: GL: -noblendsquare disables GL_NV_blend_square
879 // COMMANDLINEOPTION: GL: -noblendsubtract disables GL_EXT_blend_subtract
880 // COMMANDLINEOPTION: GL: -nocombine disables GL_ARB_texture_env_combine or GL_EXT_texture_env_combine (required for bumpmapping and faster map rendering)
881 // COMMANDLINEOPTION: GL: -nocubemap disables GL_ARB_texture_cube_map (required for bumpmapping)
882 // COMMANDLINEOPTION: GL: -nocva disables GL_EXT_compiled_vertex_array (renders faster)
883 // COMMANDLINEOPTION: GL: -nodepthtexture disables use of GL_ARB_depth_texture (required for shadowmapping)
884 // COMMANDLINEOPTION: GL: -nodrawrangeelements disables GL_EXT_draw_range_elements (renders faster)
885 // 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)
886 // COMMANDLINEOPTION: GL: -nofbo disables GL_EXT_framebuffer_object (which accelerates rendering), only used if GL_ARB_fragment_shader is also available
887 // COMMANDLINEOPTION: GL: -nofragmentshader disables GL_ARB_fragment_shader (allows pixel shader effects, can improve per pixel lighting performance and capabilities)
888 // COMMANDLINEOPTION: GL: -nomtex disables GL_ARB_multitexture (required for faster map rendering)
889 // COMMANDLINEOPTION: GL: -noocclusionquery disables GL_ARB_occlusion_query (which allows coronas to fade according to visibility, and potentially used for rendering optimizations)
890 // COMMANDLINEOPTION: GL: -norectangle disables GL_ARB_texture_rectangle (required for bumpmapping)
891 // COMMANDLINEOPTION: GL: -noseparatestencil disables use of OpenGL2.0 glStencilOpSeparate and GL_ATI_separate_stencil extensions (which accelerate shadow rendering)
892 // COMMANDLINEOPTION: GL: -noshaderobjects disables GL_ARB_shader_objects (required for vertex shader and fragment shader)
893 // COMMANDLINEOPTION: GL: -noshadinglanguage100 disables GL_ARB_shading_language_100 (required for vertex shader and fragment shader)
894 // COMMANDLINEOPTION: GL: -noshadow disables use of GL_ARB_shadow (required for hardware shadowmap filtering)
895 // COMMANDLINEOPTION: GL: -nostenciltwoside disables GL_EXT_stencil_two_side (which accelerate shadow rendering)
896 // COMMANDLINEOPTION: GL: -notexture3d disables GL_EXT_texture3D (required for spherical lights, otherwise they render as a column)
897 // COMMANDLINEOPTION: GL: -notexture4 disables GL_AMD_texture_texture4 (which provides fetch4 sampling)
898 // 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)
899 // COMMANDLINEOPTION: GL: -notexturegather disables GL_ARB_texture_gather (which provides fetch4 sampling)
900 // 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)
901 // COMMANDLINEOPTION: GL: -novbo disables GL_ARB_vertex_buffer_object (which accelerates rendering)
902 // COMMANDLINEOPTION: GL: -novertexshader disables GL_ARB_vertex_shader (allows vertex shader effects)
904 vid.maxtexturesize_2d = 0;
905 vid.maxtexturesize_3d = 0;
906 vid.maxtexturesize_cubemap = 0;
908 vid.teximageunits = 1;
909 vid.texarrayunits = 1;
910 vid.max_anisotropy = 1;
912 // 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
913 // we detect these cards by checking if the hardware supports vertex texture fetch (Geforce6 does, Radeon X1600 does not, all GL3-class hardware does)
914 if(vid.support.arb_texture_non_power_of_two)
917 if (vid.support.arb_vertex_shader)
918 qglGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB, &val);CHECKGLERROR
920 vid.support.arb_texture_non_power_of_two = false;
923 // we don't care if it's an extension or not, they are identical functions, so keep it simple in the rendering code
924 if (qglDrawRangeElements == NULL)
925 qglDrawRangeElements = qglDrawRangeElementsEXT;
927 qglGetIntegerv(GL_MAX_TEXTURE_SIZE, (GLint*)&vid.maxtexturesize_2d);
928 if (vid.support.ext_texture_filter_anisotropic)
929 qglGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, (GLint*)&vid.max_anisotropy);
930 if (vid.support.arb_texture_cube_map)
931 qglGetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, (GLint*)&vid.maxtexturesize_cubemap);
932 if (vid.support.arb_texture_rectangle)
933 qglGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE_ARB, (GLint*)&vid.maxtexturesize_rectangle);
934 if (vid.support.ext_texture_3d)
935 qglGetIntegerv(GL_MAX_3D_TEXTURE_SIZE, (GLint*)&vid.maxtexturesize_3d);
937 // verify that 3d textures are really supported
938 if (vid.support.ext_texture_3d && vid.maxtexturesize_3d < 32)
940 vid.support.ext_texture_3d = false;
941 Con_Printf("GL_EXT_texture3D reported bogus GL_MAX_3D_TEXTURE_SIZE, disabled\n");
944 vid.texunits = vid.teximageunits = vid.texarrayunits = 1;
945 if (vid.support.arb_fragment_shader && vid_gl20.integer)
947 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, (GLint*)&vid.texunits);
948 qglGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS_ARB, (int *)&vid.teximageunits);CHECKGLERROR
949 qglGetIntegerv(GL_MAX_TEXTURE_COORDS_ARB, (int *)&vid.texarrayunits);CHECKGLERROR
950 vid.texunits = bound(4, vid.texunits, MAX_TEXTUREUNITS);
951 vid.teximageunits = bound(16, vid.teximageunits, MAX_TEXTUREUNITS);
952 vid.texarrayunits = bound(8, vid.texarrayunits, MAX_TEXTUREUNITS);
953 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" : "");
954 vid.renderpath = RENDERPATH_GL20;
956 else if (vid.support.arb_texture_env_combine && vid.texunits >= 2 && vid_gl13.integer)
958 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, (GLint*)&vid.texunits);
959 vid.texunits = bound(1, vid.texunits, MAX_TEXTUREUNITS);
960 vid.teximageunits = vid.texunits;
961 vid.texarrayunits = vid.texunits;
962 Con_DPrintf("Using GL1.3 rendering path - %i texture units, single pass rendering\n", vid.texunits);
963 vid.renderpath = RENDERPATH_GL13;
967 if (vid.support.arb_multitexture)
968 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, (GLint*)&vid.texunits);
969 vid.texunits = bound(1, vid.texunits, MAX_TEXTUREUNITS);
970 vid.teximageunits = vid.texunits;
971 vid.texarrayunits = vid.texunits;
972 Con_DPrintf("Using GL1.1 rendering path - %i texture units, two pass rendering\n", vid.texunits);
973 vid.renderpath = RENDERPATH_GL11;
976 gl_max_texture_size = vid.maxtexturesize_2d;
977 gl_max_3d_texture_size = vid.maxtexturesize_3d;
978 gl_max_cube_map_texture_size = vid.maxtexturesize_cubemap;
979 gl_textureunits = vid.texunits;
980 gl_max_anisotropy = vid.max_anisotropy;
982 gl_combine_extension = vid.support.arb_texture_env_combine;
983 gl_supportslockarrays = vid.support.ext_compiled_vertex_array;
984 gl_texture3d = vid.support.ext_texture_3d;
985 gl_texturecubemap = vid.support.arb_texture_cube_map;
986 gl_texturerectangle = vid.support.arb_texture_rectangle;
987 gl_support_arb_texture_non_power_of_two = vid.support.arb_texture_non_power_of_two;
988 gl_dot3arb = vid.support.arb_texture_env_dot3;
989 gl_depthtexture = vid.support.arb_depth_texture;
990 gl_support_arb_shadow = vid.support.arb_shadow;
991 gl_support_clamptoedge = vid.support.ext_texture_edge_clamp;
992 gl_support_anisotropy = vid.support.ext_texture_filter_anisotropic;
993 gl_support_separatestencil = vid.support.ati_separate_stencil;
994 gl_support_stenciltwoside = vid.support.ext_stencil_two_side;
995 gl_support_ext_blend_minmax = vid.support.ext_blend_minmax;
996 gl_support_ext_blend_subtract = vid.support.ext_blend_subtract;
997 gl_support_shader_objects = vid.support.arb_shader_objects;
998 gl_support_shading_language_100 = vid.support.arb_shading_language_100;
999 gl_support_vertex_shader = vid.support.arb_vertex_shader;
1000 gl_support_fragment_shader = vid.support.arb_fragment_shader;
1001 gl_support_arb_vertex_buffer_object = vid.support.arb_vertex_buffer_object;
1002 gl_support_ext_framebuffer_object = vid.support.ext_framebuffer_object;
1003 gl_support_texture_compression = vid.support.arb_texture_compression;
1004 gl_support_arb_occlusion_query = vid.support.arb_occlusion_query;
1005 gl_support_amd_texture_texture4 = vid.support.amd_texture_texture4;
1006 gl_support_arb_texture_gather = vid.support.arb_texture_gather;
1008 // VorteX: set other info (maybe place them in VID_InitMode?)
1009 Cvar_SetQuick(&gl_info_vendor, gl_vendor);
1010 Cvar_SetQuick(&gl_info_renderer, gl_renderer);
1011 Cvar_SetQuick(&gl_info_version, gl_version);
1012 Cvar_SetQuick(&gl_info_platform, gl_platform ? gl_platform : "");
1013 Cvar_SetQuick(&gl_info_driver, gl_driver);
1016 void Force_CenterView_f (void)
1018 cl.viewangles[PITCH] = 0;
1021 static int gamma_forcenextframe = false;
1022 static float cachegamma, cachebrightness, cachecontrast, cacheblack[3], cachegrey[3], cachewhite[3], cachecontrastboost;
1023 static int cachecolorenable, cachehwgamma;
1025 unsigned int vid_gammatables_serial = 0; // so other subsystems can poll if gamma parameters have changed
1026 qboolean vid_gammatables_trivial = true;
1027 void VID_BuildGammaTables(unsigned short *ramps, int rampsize)
1029 if (cachecolorenable)
1031 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[0]), cachewhite[0], cacheblack[0], cachecontrastboost, ramps, rampsize);
1032 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[1]), cachewhite[1], cacheblack[1], cachecontrastboost, ramps + rampsize, rampsize);
1033 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[2]), cachewhite[2], cacheblack[2], cachecontrastboost, ramps + rampsize*2, rampsize);
1037 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, cachecontrastboost, ramps, rampsize);
1038 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, cachecontrastboost, ramps + rampsize, rampsize);
1039 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, cachecontrastboost, ramps + rampsize*2, rampsize);
1042 // LordHavoc: this code came from Ben Winslow and Zinx Verituse, I have
1043 // immensely butchered it to work with variable framerates and fit in with
1044 // the rest of darkplaces.
1045 if (v_psycho.integer)
1049 static float n[3], nd[3], nt[3];
1050 static int init = true;
1051 unsigned short *ramp;
1052 gamma_forcenextframe = true;
1056 for (x = 0;x < 3;x++)
1058 n[x] = lhrandom(0, 1);
1059 nd[x] = (rand()&1)?-0.25:0.25;
1060 nt[x] = lhrandom(1, 8.2);
1064 for (x = 0;x < 3;x++)
1066 nt[x] -= cl.realframetime;
1070 nt[x] += lhrandom(1, 8.2);
1072 n[x] += nd[x] * cl.realframetime;
1073 n[x] -= floor(n[x]);
1076 for (x = 0, ramp = ramps;x < 3;x++)
1077 for (y = 0, t = n[x] - 0.75f;y < rampsize;y++, t += 0.75f * (2.0f / rampsize))
1078 *ramp++ = (unsigned short)(cos(t*(M_PI*2.0)) * 32767.0f + 32767.0f);
1082 void VID_UpdateGamma(qboolean force, int rampsize)
1087 qboolean gamma_changed = false;
1089 // LordHavoc: don't mess with gamma tables if running dedicated
1090 if (cls.state == ca_dedicated)
1093 wantgamma = v_hwgamma.integer;
1094 if(r_glsl.integer && v_glslgamma.integer)
1096 if(!vid_activewindow)
1098 #define BOUNDCVAR(cvar, m1, m2) c = &(cvar);f = bound(m1, c->value, m2);if (c->value != f) Cvar_SetValueQuick(c, f);
1099 BOUNDCVAR(v_gamma, 0.1, 5);
1100 BOUNDCVAR(v_contrast, 1, 5);
1101 BOUNDCVAR(v_brightness, 0, 0.8);
1102 //BOUNDCVAR(v_contrastboost, 0.0625, 16);
1103 BOUNDCVAR(v_color_black_r, 0, 0.8);
1104 BOUNDCVAR(v_color_black_g, 0, 0.8);
1105 BOUNDCVAR(v_color_black_b, 0, 0.8);
1106 BOUNDCVAR(v_color_grey_r, 0, 0.95);
1107 BOUNDCVAR(v_color_grey_g, 0, 0.95);
1108 BOUNDCVAR(v_color_grey_b, 0, 0.95);
1109 BOUNDCVAR(v_color_white_r, 1, 5);
1110 BOUNDCVAR(v_color_white_g, 1, 5);
1111 BOUNDCVAR(v_color_white_b, 1, 5);
1114 // set vid_gammatables_trivial to true if the current settings would generate the identity gamma table
1115 vid_gammatables_trivial = false;
1116 if(v_psycho.integer == 0)
1117 if(v_contrastboost.value == 1)
1119 if(v_color_enable.integer)
1121 if(v_color_black_r.value == 0)
1122 if(v_color_black_g.value == 0)
1123 if(v_color_black_b.value == 0)
1124 if(fabs(v_color_grey_r.value - 0.5) < 1e-6)
1125 if(fabs(v_color_grey_g.value - 0.5) < 1e-6)
1126 if(fabs(v_color_grey_b.value - 0.5) < 1e-6)
1127 if(v_color_white_r.value == 1)
1128 if(v_color_white_g.value == 1)
1129 if(v_color_white_b.value == 1)
1130 vid_gammatables_trivial = true;
1134 if(v_gamma.value == 1)
1135 if(v_contrast.value == 1)
1136 if(v_brightness.value == 0)
1137 vid_gammatables_trivial = true;
1141 #define GAMMACHECK(cache, value) if (cache != (value)) gamma_changed = true;cache = (value)
1142 if(v_psycho.integer)
1143 gamma_changed = true;
1144 GAMMACHECK(cachegamma , v_gamma.value);
1145 GAMMACHECK(cachecontrast , v_contrast.value);
1146 GAMMACHECK(cachebrightness , v_brightness.value);
1147 GAMMACHECK(cachecontrastboost, v_contrastboost.value);
1148 GAMMACHECK(cachecolorenable, v_color_enable.integer);
1149 GAMMACHECK(cacheblack[0] , v_color_black_r.value);
1150 GAMMACHECK(cacheblack[1] , v_color_black_g.value);
1151 GAMMACHECK(cacheblack[2] , v_color_black_b.value);
1152 GAMMACHECK(cachegrey[0] , v_color_grey_r.value);
1153 GAMMACHECK(cachegrey[1] , v_color_grey_g.value);
1154 GAMMACHECK(cachegrey[2] , v_color_grey_b.value);
1155 GAMMACHECK(cachewhite[0] , v_color_white_r.value);
1156 GAMMACHECK(cachewhite[1] , v_color_white_g.value);
1157 GAMMACHECK(cachewhite[2] , v_color_white_b.value);
1160 ++vid_gammatables_serial;
1162 GAMMACHECK(cachehwgamma , wantgamma);
1165 if (!force && !gamma_forcenextframe && !gamma_changed)
1168 gamma_forcenextframe = false;
1172 if (!vid_usinghwgamma)
1174 vid_usinghwgamma = true;
1175 if (vid_gammarampsize != rampsize || !vid_gammaramps)
1177 vid_gammarampsize = rampsize;
1179 Z_Free(vid_gammaramps);
1180 vid_gammaramps = (unsigned short *)Z_Malloc(6 * vid_gammarampsize * sizeof(unsigned short));
1181 vid_systemgammaramps = vid_gammaramps + 3 * vid_gammarampsize;
1183 VID_GetGamma(vid_systemgammaramps, vid_gammarampsize);
1186 VID_BuildGammaTables(vid_gammaramps, vid_gammarampsize);
1188 // set vid_hardwaregammasupported to true if VID_SetGamma succeeds, OR if vid_hwgamma is >= 2 (forced gamma - ignores driver return value)
1189 Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_gammaramps, vid_gammarampsize) || cachehwgamma >= 2);
1190 // if custom gamma ramps failed (Windows stupidity), restore to system gamma
1191 if(!vid_hardwaregammasupported.integer)
1193 if (vid_usinghwgamma)
1195 vid_usinghwgamma = false;
1196 VID_SetGamma(vid_systemgammaramps, vid_gammarampsize);
1202 if (vid_usinghwgamma)
1204 vid_usinghwgamma = false;
1205 VID_SetGamma(vid_systemgammaramps, vid_gammarampsize);
1210 void VID_RestoreSystemGamma(void)
1212 if (vid_usinghwgamma)
1214 vid_usinghwgamma = false;
1215 Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_systemgammaramps, vid_gammarampsize));
1216 // force gamma situation to be reexamined next frame
1217 gamma_forcenextframe = true;
1221 void VID_Shared_Init(void)
1223 Cvar_RegisterVariable(&vid_hardwaregammasupported);
1224 Cvar_RegisterVariable(&gl_info_vendor);
1225 Cvar_RegisterVariable(&gl_info_renderer);
1226 Cvar_RegisterVariable(&gl_info_version);
1227 Cvar_RegisterVariable(&gl_info_extensions);
1228 Cvar_RegisterVariable(&gl_info_platform);
1229 Cvar_RegisterVariable(&gl_info_driver);
1230 Cvar_RegisterVariable(&v_gamma);
1231 Cvar_RegisterVariable(&v_brightness);
1232 Cvar_RegisterVariable(&v_contrastboost);
1233 Cvar_RegisterVariable(&v_contrast);
1235 Cvar_RegisterVariable(&v_color_enable);
1236 Cvar_RegisterVariable(&v_color_black_r);
1237 Cvar_RegisterVariable(&v_color_black_g);
1238 Cvar_RegisterVariable(&v_color_black_b);
1239 Cvar_RegisterVariable(&v_color_grey_r);
1240 Cvar_RegisterVariable(&v_color_grey_g);
1241 Cvar_RegisterVariable(&v_color_grey_b);
1242 Cvar_RegisterVariable(&v_color_white_r);
1243 Cvar_RegisterVariable(&v_color_white_g);
1244 Cvar_RegisterVariable(&v_color_white_b);
1246 Cvar_RegisterVariable(&v_hwgamma);
1247 Cvar_RegisterVariable(&v_glslgamma);
1249 Cvar_RegisterVariable(&v_psycho);
1251 Cvar_RegisterVariable(&vid_fullscreen);
1252 Cvar_RegisterVariable(&vid_width);
1253 Cvar_RegisterVariable(&vid_height);
1254 Cvar_RegisterVariable(&vid_bitsperpixel);
1255 Cvar_RegisterVariable(&vid_samples);
1256 Cvar_RegisterVariable(&vid_refreshrate);
1257 Cvar_RegisterVariable(&vid_userefreshrate);
1258 Cvar_RegisterVariable(&vid_stereobuffer);
1259 Cvar_RegisterVariable(&vid_vsync);
1260 Cvar_RegisterVariable(&vid_mouse);
1261 Cvar_RegisterVariable(&vid_grabkeyboard);
1262 Cvar_RegisterVariable(&vid_stick_mouse);
1263 Cvar_RegisterVariable(&vid_resizable);
1264 Cvar_RegisterVariable(&vid_minwidth);
1265 Cvar_RegisterVariable(&vid_minheight);
1266 Cvar_RegisterVariable(&gl_combine);
1267 Cvar_RegisterVariable(&vid_gl13);
1268 Cvar_RegisterVariable(&vid_gl20);
1269 Cvar_RegisterVariable(&gl_finish);
1270 Cmd_AddCommand("force_centerview", Force_CenterView_f, "recenters view (stops looking up/down)");
1271 Cmd_AddCommand("vid_restart", VID_Restart_f, "restarts video system (closes and reopens the window, restarts renderer)");
1274 int VID_Mode(int fullscreen, int width, int height, int bpp, float refreshrate, int stereobuffer, int samples)
1277 memset(&mode, 0, sizeof(mode));
1278 mode.fullscreen = fullscreen;
1280 mode.height = height;
1281 mode.bitsperpixel = bpp;
1282 mode.refreshrate = vid_userefreshrate.integer ? max(1, refreshrate) : 0;
1283 mode.userefreshrate = vid_userefreshrate.integer;
1284 mode.stereobuffer = stereobuffer;
1285 mode.samples = samples;
1286 cl_ignoremousemoves = 2;
1287 if (VID_InitMode(&mode))
1289 // accept the (possibly modified) mode
1291 vid.fullscreen = vid.mode.fullscreen;
1292 vid.width = vid.mode.width;
1293 vid.height = vid.mode.height;
1294 vid.bitsperpixel = vid.mode.bitsperpixel;
1295 vid.refreshrate = vid.mode.refreshrate;
1296 vid.userefreshrate = vid.mode.userefreshrate;
1297 vid.stereobuffer = vid.mode.stereobuffer;
1298 vid.samples = vid.mode.samples;
1299 vid.stencil = vid.mode.bitsperpixel > 16;
1300 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) : "");
1302 Cvar_SetValueQuick(&vid_fullscreen, vid.mode.fullscreen);
1303 Cvar_SetValueQuick(&vid_width, vid.mode.width);
1304 Cvar_SetValueQuick(&vid_height, vid.mode.height);
1305 Cvar_SetValueQuick(&vid_bitsperpixel, vid.mode.bitsperpixel);
1306 Cvar_SetValueQuick(&vid_samples, vid.mode.samples);
1307 if(vid_userefreshrate.integer)
1308 Cvar_SetValueQuick(&vid_refreshrate, vid.mode.refreshrate);
1309 Cvar_SetValueQuick(&vid_stereobuffer, vid.mode.stereobuffer);
1317 static void VID_OpenSystems(void)
1323 static void VID_CloseSystems(void)
1326 R_Modules_Shutdown();
1329 qboolean vid_commandlinecheck = true;
1331 void VID_Restart_f(void)
1333 // don't crash if video hasn't started yet
1334 if (vid_commandlinecheck)
1337 Con_Printf("VID_Restart: changing from %s %dx%dx%dbpp%s%s, to %s %dx%dx%dbpp%s%s.\n",
1338 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) : "",
1339 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) : "");
1342 if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.value, vid_stereobuffer.integer, vid_samples.integer))
1344 Con_Print("Video mode change failed\n");
1345 if (!VID_Mode(vid.mode.fullscreen, vid.mode.width, vid.mode.height, vid.mode.bitsperpixel, vid.mode.refreshrate, vid.mode.stereobuffer, vid.mode.samples))
1346 Sys_Error("Unable to restore to last working video mode");
1351 const char *vidfallbacks[][2] =
1353 {"vid_stereobuffer", "0"},
1354 {"vid_samples", "1"},
1355 {"vid_userefreshrate", "0"},
1356 {"vid_width", "640"},
1357 {"vid_height", "480"},
1358 {"vid_bitsperpixel", "16"},
1362 // this is only called once by Host_StartVideo
1363 void VID_Start(void)
1365 int i, width, height, success;
1366 if (vid_commandlinecheck)
1368 // interpret command-line parameters
1369 vid_commandlinecheck = false;
1370 // COMMANDLINEOPTION: Video: -window performs +vid_fullscreen 0
1371 if (COM_CheckParm("-window") || COM_CheckParm("-safe"))
1372 Cvar_SetValueQuick(&vid_fullscreen, false);
1373 // COMMANDLINEOPTION: Video: -fullscreen performs +vid_fullscreen 1
1374 if (COM_CheckParm("-fullscreen"))
1375 Cvar_SetValueQuick(&vid_fullscreen, true);
1378 // 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)
1379 if ((i = COM_CheckParm("-width")) != 0)
1380 width = atoi(com_argv[i+1]);
1381 // 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)
1382 if ((i = COM_CheckParm("-height")) != 0)
1383 height = atoi(com_argv[i+1]);
1385 width = height * 4 / 3;
1387 height = width * 3 / 4;
1389 Cvar_SetValueQuick(&vid_width, width);
1391 Cvar_SetValueQuick(&vid_height, height);
1392 // COMMANDLINEOPTION: Video: -bpp <bits> performs +vid_bitsperpixel <bits> (example -bpp 32 or -bpp 16)
1393 if ((i = COM_CheckParm("-bpp")) != 0)
1394 Cvar_SetQuick(&vid_bitsperpixel, com_argv[i+1]);
1397 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.value, vid_stereobuffer.integer, vid_samples.integer);
1400 Con_Print("Desired video mode fail, trying fallbacks...\n");
1401 for (i = 0;!success && vidfallbacks[i][0] != NULL;i++)
1403 Cvar_Set(vidfallbacks[i][0], vidfallbacks[i][1]);
1404 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.value, vid_stereobuffer.integer, vid_samples.integer);
1407 Sys_Error("Video modes failed");
1412 int VID_SortModes_Compare(const void *a_, const void *b_)
1414 vid_mode_t *a = (vid_mode_t *) a_;
1415 vid_mode_t *b = (vid_mode_t *) b_;
1416 if(a->width > b->width)
1418 if(a->width < b->width)
1420 if(a->height > b->height)
1422 if(a->height < b->height)
1424 if(a->refreshrate > b->refreshrate)
1426 if(a->refreshrate < b->refreshrate)
1432 if(a->pixelheight_num * b->pixelheight_denom > a->pixelheight_denom * b->pixelheight_num)
1434 if(a->pixelheight_num * b->pixelheight_denom < a->pixelheight_denom * b->pixelheight_num)
1438 size_t VID_SortModes(vid_mode_t *modes, size_t count, qboolean usebpp, qboolean userefreshrate, qboolean useaspect)
1444 qsort(modes, count, sizeof(*modes), VID_SortModes_Compare);
1445 // 2. remove duplicates
1446 for(i = 0; i < count; ++i)
1448 if(modes[i].width && modes[i].height)
1452 if(modes[i].width != modes[i-1].width)
1454 if(modes[i].height != modes[i-1].height)
1457 if(modes[i].refreshrate != modes[i-1].refreshrate)
1460 if(modes[i].bpp != modes[i-1].bpp)
1463 if(modes[i].pixelheight_num * modes[i-1].pixelheight_denom != modes[i].pixelheight_denom * modes[i-1].pixelheight_num)
1466 // a dupe, or a bogus mode!
1468 memmove(&modes[i], &modes[i+1], sizeof(*modes) * (count-1 - i));
1469 --i; // check this index again, as mode i+1 is now here