vid_shared.c

   1
   2 #include "quakedef.h"
   3
   4 // global video state
   5 viddef_t vid;
   6
   7 // LordHavoc: these are only set in wgl
   8 qboolean isG200 = false; // LordHavoc: the Matrox G200 can't do per pixel alpha, and it uses a D3D driver for GL... ugh...
   9 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.
  10
  11 // AK FIXME -> input_dest
  12 qboolean in_client_mouse = true;
  13
  14 // AK where should it be placed ?
  15 float in_mouse_x, in_mouse_y;
  16
  17 // GL_ARB_multitexture
  18 int gl_textureunits = 0;
  19 // GL_ARB_texture_env_combine or GL_EXT_texture_env_combine
  20 int gl_combine_extension = false;
  21 // GL_EXT_compiled_vertex_array
  22 int gl_supportslockarrays = false;
  23 // GLX_SGI_video_sync or WGL_EXT_swap_control
  24 int gl_videosyncavailable = false;
  25 // stencil available
  26 int gl_stencil = false;
  27 // 3D textures available
  28 int gl_texture3d = false;
  29 // GL_ARB_texture_cubemap
  30 int gl_texturecubemap = false;
  31 // GL_ARB_texture_env_dot3
  32 int gl_dot3arb = false;
  33 // GL_SGIS_texture_edge_clamp
  34 int gl_support_clamptoedge = false;
  35 // GL_NV_vertex_array_range
  36 int gl_support_var = false;
  37 // GL_NV_vertex_array_range2
  38 int gl_support_var2 = false;
  39 // GL_EXT_texture_filter_anisotropic
  40 int gl_support_anisotropy = false;
  41 // GL_NV_texture_shader
  42 int gl_textureshader = false;
  43 // GL_EXT_stencil_two_side
  44 int gl_support_stenciltwoside = false;
  45
  46 // LordHavoc: if window is hidden, don't update screen
  47 int vid_hidden = true;
  48 // LordHavoc: if window is not the active window, don't hog as much CPU time,
  49 // let go of the mouse, turn off sound, and restore system gamma ramps...
  50 int vid_activewindow = true;
  51
  52 // we don't know until we try it!
  53 cvar_t vid_hardwaregammasupported = {CVAR_READONLY,"vid_hardwaregammasupported","1"};
  54 // whether hardware gamma ramps are currently in effect
  55 int vid_usinghwgamma = false;
  56
  57 unsigned short vid_gammaramps[768];
  58 unsigned short vid_systemgammaramps[768];
  59
  60 cvar_t vid_fullscreen = {CVAR_SAVE, "vid_fullscreen", "1"};
  61 cvar_t vid_width = {CVAR_SAVE, "vid_width", "640"};
  62 cvar_t vid_height = {CVAR_SAVE, "vid_height", "480"};
  63 cvar_t vid_bitsperpixel = {CVAR_SAVE, "vid_bitsperpixel", "32"};
  64
  65 cvar_t vid_mouse = {CVAR_SAVE, "vid_mouse", "1"};
  66 cvar_t gl_combine = {CVAR_SAVE, "gl_combine", "1"};
  67
  68 cvar_t in_pitch_min = {0, "in_pitch_min", "-70"};
  69 cvar_t in_pitch_max = {0, "in_pitch_max", "80"};
  70
  71 cvar_t m_filter = {CVAR_SAVE, "m_filter","0"};
  72
  73 cvar_t v_gamma = {CVAR_SAVE, "v_gamma", "1"};
  74 cvar_t v_contrast = {CVAR_SAVE, "v_contrast", "1"};
  75 cvar_t v_brightness = {CVAR_SAVE, "v_brightness", "0"};
  76 cvar_t v_color_enable = {CVAR_SAVE, "v_color_enable", "0"};
  77 cvar_t v_color_black_r = {CVAR_SAVE, "v_color_black_r", "0"};
  78 cvar_t v_color_black_g = {CVAR_SAVE, "v_color_black_g", "0"};
  79 cvar_t v_color_black_b = {CVAR_SAVE, "v_color_black_b", "0"};
  80 cvar_t v_color_grey_r = {CVAR_SAVE, "v_color_grey_r", "0.5"};
  81 cvar_t v_color_grey_g = {CVAR_SAVE, "v_color_grey_g", "0.5"};
  82 cvar_t v_color_grey_b = {CVAR_SAVE, "v_color_grey_b", "0.5"};
  83 cvar_t v_color_white_r = {CVAR_SAVE, "v_color_white_r", "1"};
  84 cvar_t v_color_white_g = {CVAR_SAVE, "v_color_white_g", "1"};
  85 cvar_t v_color_white_b = {CVAR_SAVE, "v_color_white_b", "1"};
  86 cvar_t v_hwgamma = {CVAR_SAVE, "v_hwgamma", "1"};
  87 cvar_t v_psycho = {0, "v_psycho", "0"};
  88
  89 // brand of graphics chip
  90 const char *gl_vendor;
  91 // graphics chip model and other information
  92 const char *gl_renderer;
  93 // begins with 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0
  94 const char *gl_version;
  95 // extensions list, space separated
  96 const char *gl_extensions;
  97 // WGL, GLX, or AGL
  98 const char *gl_platform;
  99 // another extensions list, containing platform-specific extensions that are
 100 // not in the main list
 101 const char *gl_platformextensions;
 102 // name of driver library (opengl32.dll, libGL.so.1, or whatever)
 103 char gl_driver[256];
 104
 105 // GL_ARB_multitexture
 106 void (GLAPIENTRY *qglMultiTexCoord2f) (GLenum, GLfloat, GLfloat);
 107 void (GLAPIENTRY *qglMultiTexCoord3f) (GLenum, GLfloat, GLfloat, GLfloat);
 108 void (GLAPIENTRY *qglActiveTexture) (GLenum);
 109 void (GLAPIENTRY *qglClientActiveTexture) (GLenum);
 110
 111 // GL_EXT_compiled_vertex_array
 112 void (GLAPIENTRY *qglLockArraysEXT) (GLint first, GLint count);
 113 void (GLAPIENTRY *qglUnlockArraysEXT) (void);
 114
 115 //GL_NV_vertex_array_range
 116 GLvoid *(GLAPIENTRY *qglAllocateMemoryNV)(GLsizei size, GLfloat readFrequency, GLfloat writeFrequency, GLfloat priority);
 117 GLvoid (GLAPIENTRY *qglFreeMemoryNV)(GLvoid *pointer);
 118 GLvoid (GLAPIENTRY *qglVertexArrayRangeNV)(GLsizei length, GLvoid *pointer);
 119 GLvoid (GLAPIENTRY *qglFlushVertexArrayRangeNV)(GLvoid);
 120
 121 // general GL functions
 122
 123 void (GLAPIENTRY *qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
 124
 125 void (GLAPIENTRY *qglClear)(GLbitfield mask);
 126
 127 void (GLAPIENTRY *qglAlphaFunc)(GLenum func, GLclampf ref);
 128 void (GLAPIENTRY *qglBlendFunc)(GLenum sfactor, GLenum dfactor);
 129 void (GLAPIENTRY *qglCullFace)(GLenum mode);
 130
 131 void (GLAPIENTRY *qglDrawBuffer)(GLenum mode);
 132 void (GLAPIENTRY *qglReadBuffer)(GLenum mode);
 133 void (GLAPIENTRY *qglEnable)(GLenum cap);
 134 void (GLAPIENTRY *qglDisable)(GLenum cap);
 135 GLboolean (GLAPIENTRY *qglIsEnabled)(GLenum cap);
 136
 137 void (GLAPIENTRY *qglEnableClientState)(GLenum cap);
 138 void (GLAPIENTRY *qglDisableClientState)(GLenum cap);
 139
 140 void (GLAPIENTRY *qglGetBooleanv)(GLenum pname, GLboolean *params);
 141 void (GLAPIENTRY *qglGetDoublev)(GLenum pname, GLdouble *params);
 142 void (GLAPIENTRY *qglGetFloatv)(GLenum pname, GLfloat *params);
 143 void (GLAPIENTRY *qglGetIntegerv)(GLenum pname, GLint *params);
 144
 145 GLenum (GLAPIENTRY *qglGetError)(void);
 146 const GLubyte* (GLAPIENTRY *qglGetString)(GLenum name);
 147 void (GLAPIENTRY *qglFinish)(void);
 148 void (GLAPIENTRY *qglFlush)(void);
 149
 150 void (GLAPIENTRY *qglClearDepth)(GLclampd depth);
 151 void (GLAPIENTRY *qglDepthFunc)(GLenum func);
 152 void (GLAPIENTRY *qglDepthMask)(GLboolean flag);
 153 void (GLAPIENTRY *qglDepthRange)(GLclampd near_val, GLclampd far_val);
 154 void (GLAPIENTRY *qglColorMask)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
 155
 156 void (GLAPIENTRY *qglDrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
 157 void (GLAPIENTRY *qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
 158 void (GLAPIENTRY *qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
 159 void (GLAPIENTRY *qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *ptr);
 160 void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
 161 void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
 162 void (GLAPIENTRY *qglArrayElement)(GLint i);
 163
 164 void (GLAPIENTRY *qglColor4f)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
 165 void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
 166 void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
 167 void (GLAPIENTRY *qglTexCoord3f)(GLfloat s, GLfloat t, GLfloat r);
 168 void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
 169 void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
 170 void (GLAPIENTRY *qglBegin)(GLenum mode);
 171 void (GLAPIENTRY *qglEnd)(void);
 172
 173 void (GLAPIENTRY *qglMatrixMode)(GLenum mode);
 174 void (GLAPIENTRY *qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
 175 void (GLAPIENTRY *qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
 176 void (GLAPIENTRY *qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
 177 void (GLAPIENTRY *qglPushMatrix)(void);
 178 void (GLAPIENTRY *qglPopMatrix)(void);
 179 void (GLAPIENTRY *qglLoadIdentity)(void);
 180 void (GLAPIENTRY *qglLoadMatrixd)(const GLdouble *m);
 181 void (GLAPIENTRY *qglLoadMatrixf)(const GLfloat *m);
 182 void (GLAPIENTRY *qglMultMatrixd)(const GLdouble *m);
 183 void (GLAPIENTRY *qglMultMatrixf)(const GLfloat *m);
 184 void (GLAPIENTRY *qglRotated)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
 185 void (GLAPIENTRY *qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
 186 void (GLAPIENTRY *qglScaled)(GLdouble x, GLdouble y, GLdouble z);
 187 void (GLAPIENTRY *qglScalef)(GLfloat x, GLfloat y, GLfloat z);
 188 void (GLAPIENTRY *qglTranslated)(GLdouble x, GLdouble y, GLdouble z);
 189 void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
 190
 191 void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
 192
 193 void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
 194 void (GLAPIENTRY *qglStencilMask)(GLuint mask);
 195 void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
 196 void (GLAPIENTRY *qglClearStencil)(GLint s);
 197
 198 void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
 199 void (GLAPIENTRY *qglTexEnvfv)(GLenum target, GLenum pname, const GLfloat *params);
 200 void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
 201 void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
 202 void (GLAPIENTRY *qglTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
 203 void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
 204
 205 void (GLAPIENTRY *qglGenTextures)(GLsizei n, GLuint *textures);
 206 void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
 207 void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
 208 //void (GLAPIENTRY *qglPrioritizeTextures)(GLsizei n, const GLuint *textures, const GLclampf *priorities);
 209 //GLboolean (GLAPIENTRY *qglAreTexturesResident)(GLsizei n, const GLuint *textures, GLboolean *residences);
 210 GLboolean (GLAPIENTRY *qglIsTexture)(GLuint texture);
 211 void (GLAPIENTRY *qglPixelStoref)(GLenum pname, GLfloat param);
 212 void (GLAPIENTRY *qglPixelStorei)(GLenum pname, GLint param);
 213
 214 void (GLAPIENTRY *qglTexImage1D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
 215 void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
 216 void (GLAPIENTRY *qglTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels);
 217 void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
 218 void (GLAPIENTRY *qglCopyTexImage1D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
 219 void (GLAPIENTRY *qglCopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
 220 void (GLAPIENTRY *qglCopyTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
 221 void (GLAPIENTRY *qglCopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
 222
 223
 224 void (GLAPIENTRY *qglDrawRangeElementsEXT)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
 225
 226 //void (GLAPIENTRY *qglColorTableEXT)(int, int, int, int, int, const void *);
 227
 228 void (GLAPIENTRY *qglTexImage3D)(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
 229 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);
 230 void (GLAPIENTRY *qglCopyTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
 231
 232 void (GLAPIENTRY *qglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
 233
 234 void (GLAPIENTRY *qglPolygonOffset)(GLfloat factor, GLfloat units);
 235
 236 void (GLAPIENTRY *qglActiveStencilFaceEXT)(GLenum);
 237
 238 int GL_CheckExtension(const char *name, const dllfunction_t *funcs, const char *disableparm, int silent)
 239 {
 240         int failed = false;
 241         const dllfunction_t *func;
 242
 243         Con_DPrintf("checking for %s...  ", name);
 244
 245         for (func = funcs;func && func->name;func++)
 246                 *func->funcvariable = NULL;
 247
 248         if (disableparm && (COM_CheckParm(disableparm) || COM_CheckParm("-safe")))
 249         {
 250                 Con_DPrint("disabled by commandline\n");
 251                 return false;
 252         }
 253
 254         if (strstr(gl_extensions, name) || strstr(gl_platformextensions, name) || (strncmp(name, "GL_", 3) && strncmp(name, "WGL_", 4) && strncmp(name, "GLX_", 4) && strncmp(name, "AGL_", 4)))
 255         {
 256                 for (func = funcs;func && func->name != NULL;func++)
 257                 {
 258                         // functions are cleared before all the extensions are evaluated
 259                         if (!(*func->funcvariable = (void *) GL_GetProcAddress(func->name)))
 260                         {
 261                                 if (!silent)
 262                                         Con_Printf("OpenGL extension \"%s\" is missing function \"%s\" - broken driver!\n", name, func->name);
 263                                 failed = true;
 264                         }
 265                 }
 266                 // delay the return so it prints all missing functions
 267                 if (failed)
 268                         return false;
 269                 Con_DPrint("enabled\n");
 270                 return true;
 271         }
 272         else
 273         {
 274                 Con_DPrint("not detected\n");
 275                 return false;
 276         }
 277 }
 278
 279 static dllfunction_t opengl110funcs[] =
 280 {
 281         {"glClearColor", (void **) &qglClearColor},
 282         {"glClear", (void **) &qglClear},
 283         {"glAlphaFunc", (void **) &qglAlphaFunc},
 284         {"glBlendFunc", (void **) &qglBlendFunc},
 285         {"glCullFace", (void **) &qglCullFace},
 286         {"glDrawBuffer", (void **) &qglDrawBuffer},
 287         {"glReadBuffer", (void **) &qglReadBuffer},
 288         {"glEnable", (void **) &qglEnable},
 289         {"glDisable", (void **) &qglDisable},
 290         {"glIsEnabled", (void **) &qglIsEnabled},
 291         {"glEnableClientState", (void **) &qglEnableClientState},
 292         {"glDisableClientState", (void **) &qglDisableClientState},
 293         {"glGetBooleanv", (void **) &qglGetBooleanv},
 294         {"glGetDoublev", (void **) &qglGetDoublev},
 295         {"glGetFloatv", (void **) &qglGetFloatv},
 296         {"glGetIntegerv", (void **) &qglGetIntegerv},
 297         {"glGetError", (void **) &qglGetError},
 298         {"glGetString", (void **) &qglGetString},
 299         {"glFinish", (void **) &qglFinish},
 300         {"glFlush", (void **) &qglFlush},
 301         {"glClearDepth", (void **) &qglClearDepth},
 302         {"glDepthFunc", (void **) &qglDepthFunc},
 303         {"glDepthMask", (void **) &qglDepthMask},
 304         {"glDepthRange", (void **) &qglDepthRange},
 305         {"glDrawElements", (void **) &qglDrawElements},
 306         {"glColorMask", (void **) &qglColorMask},
 307         {"glVertexPointer", (void **) &qglVertexPointer},
 308         {"glNormalPointer", (void **) &qglNormalPointer},
 309         {"glColorPointer", (void **) &qglColorPointer},
 310         {"glTexCoordPointer", (void **) &qglTexCoordPointer},
 311         {"glArrayElement", (void **) &qglArrayElement},
 312         {"glColor4f", (void **) &qglColor4f},
 313         {"glTexCoord2f", (void **) &qglTexCoord2f},
 314         {"glTexCoord3f", (void **) &qglTexCoord3f},
 315         {"glVertex2f", (void **) &qglVertex2f},
 316         {"glVertex3f", (void **) &qglVertex3f},
 317         {"glBegin", (void **) &qglBegin},
 318         {"glEnd", (void **) &qglEnd},
 319         {"glMatrixMode", (void **) &qglMatrixMode},
 320         {"glOrtho", (void **) &qglOrtho},
 321         {"glFrustum", (void **) &qglFrustum},
 322         {"glViewport", (void **) &qglViewport},
 323         {"glPushMatrix", (void **) &qglPushMatrix},
 324         {"glPopMatrix", (void **) &qglPopMatrix},
 325         {"glLoadIdentity", (void **) &qglLoadIdentity},
 326         {"glLoadMatrixd", (void **) &qglLoadMatrixd},
 327         {"glLoadMatrixf", (void **) &qglLoadMatrixf},
 328         {"glMultMatrixd", (void **) &qglMultMatrixd},
 329         {"glMultMatrixf", (void **) &qglMultMatrixf},
 330         {"glRotated", (void **) &qglRotated},
 331         {"glRotatef", (void **) &qglRotatef},
 332         {"glScaled", (void **) &qglScaled},
 333         {"glScalef", (void **) &qglScalef},
 334         {"glTranslated", (void **) &qglTranslated},
 335         {"glTranslatef", (void **) &qglTranslatef},
 336         {"glReadPixels", (void **) &qglReadPixels},
 337         {"glStencilFunc", (void **) &qglStencilFunc},
 338         {"glStencilMask", (void **) &qglStencilMask},
 339         {"glStencilOp", (void **) &qglStencilOp},
 340         {"glClearStencil", (void **) &qglClearStencil},
 341         {"glTexEnvf", (void **) &qglTexEnvf},
 342         {"glTexEnvfv", (void **) &qglTexEnvfv},
 343         {"glTexEnvi", (void **) &qglTexEnvi},
 344         {"glTexParameterf", (void **) &qglTexParameterf},
 345         {"glTexParameterfv", (void **) &qglTexParameterfv},
 346         {"glTexParameteri", (void **) &qglTexParameteri},
 347         {"glPixelStoref", (void **) &qglPixelStoref},
 348         {"glPixelStorei", (void **) &qglPixelStorei},
 349         {"glGenTextures", (void **) &qglGenTextures},
 350         {"glDeleteTextures", (void **) &qglDeleteTextures},
 351         {"glBindTexture", (void **) &qglBindTexture},
 352 //      {"glPrioritizeTextures", (void **) &qglPrioritizeTextures},
 353 //      {"glAreTexturesResident", (void **) &qglAreTexturesResident},
 354         {"glIsTexture", (void **) &qglIsTexture},
 355         {"glTexImage1D", (void **) &qglTexImage1D},
 356         {"glTexImage2D", (void **) &qglTexImage2D},
 357         {"glTexSubImage1D", (void **) &qglTexSubImage1D},
 358         {"glTexSubImage2D", (void **) &qglTexSubImage2D},
 359         {"glCopyTexImage1D", (void **) &qglCopyTexImage1D},
 360         {"glCopyTexImage2D", (void **) &qglCopyTexImage2D},
 361         {"glCopyTexSubImage1D", (void **) &qglCopyTexSubImage1D},
 362         {"glCopyTexSubImage2D", (void **) &qglCopyTexSubImage2D},
 363         {"glScissor", (void **) &qglScissor},
 364         {"glPolygonOffset", (void **) &qglPolygonOffset},
 365         {NULL, NULL}
 366 };
 367
 368 static dllfunction_t drawrangeelementsfuncs[] =
 369 {
 370         {"glDrawRangeElements", (void **) &qglDrawRangeElements},
 371         {NULL, NULL}
 372 };
 373
 374 static dllfunction_t drawrangeelementsextfuncs[] =
 375 {
 376         {"glDrawRangeElementsEXT", (void **) &qglDrawRangeElementsEXT},
 377         {NULL, NULL}
 378 };
 379
 380 static dllfunction_t multitexturefuncs[] =
 381 {
 382         {"glMultiTexCoord2fARB", (void **) &qglMultiTexCoord2f},
 383         {"glMultiTexCoord3fARB", (void **) &qglMultiTexCoord3f},
 384         {"glActiveTextureARB", (void **) &qglActiveTexture},
 385         {"glClientActiveTextureARB", (void **) &qglClientActiveTexture},
 386         {NULL, NULL}
 387 };
 388
 389 static dllfunction_t compiledvertexarrayfuncs[] =
 390 {
 391         {"glLockArraysEXT", (void **) &qglLockArraysEXT},
 392         {"glUnlockArraysEXT", (void **) &qglUnlockArraysEXT},
 393         {NULL, NULL}
 394 };
 395
 396 static dllfunction_t texture3dextfuncs[] =
 397 {
 398         {"glTexImage3DEXT", (void **) &qglTexImage3D},
 399         {"glTexSubImage3DEXT", (void **) &qglTexSubImage3D},
 400         {"glCopyTexSubImage3DEXT", (void **) &qglCopyTexSubImage3D},
 401         {NULL, NULL}
 402 };
 403
 404 static dllfunction_t glxvarfuncs[] =
 405 {
 406         {"glXAllocateMemoryNV", (void **) &qglAllocateMemoryNV},
 407         {"glXFreeMemoryNV", (void **) &qglFreeMemoryNV},
 408         {"glVertexArrayRangeNV", (void **) &qglVertexArrayRangeNV},
 409         {"glFlushVertexArrayRangeNV", (void **) &qglFlushVertexArrayRangeNV},
 410         {NULL, NULL}
 411 };
 412
 413 static dllfunction_t wglvarfuncs[] =
 414 {
 415         {"wglAllocateMemoryNV", (void **) &qglAllocateMemoryNV},
 416         {"wglFreeMemoryNV", (void **) &qglFreeMemoryNV},
 417         {"glVertexArrayRangeNV", (void **) &qglVertexArrayRangeNV},
 418         {"glFlushVertexArrayRangeNV", (void **) &qglFlushVertexArrayRangeNV},
 419         {NULL, NULL}
 420 };
 421
 422 static dllfunction_t stenciltwosidefuncs[] =
 423 {
 424         {"glActiveStencilFaceEXT", (void **) &qglActiveStencilFaceEXT},
 425         {NULL, NULL}
 426 };
 427
 428
 429 void VID_CheckExtensions(void)
 430 {
 431         gl_stencil = vid_bitsperpixel.integer == 32;
 432         gl_combine_extension = false;
 433         gl_dot3arb = false;
 434         gl_supportslockarrays = false;
 435         gl_textureunits = 1;
 436         gl_support_clamptoedge = false;
 437         gl_support_var = false;
 438         gl_support_var2 = false;
 439         gl_support_stenciltwoside = false;
 440
 441         if (!GL_CheckExtension("OpenGL 1.1.0", opengl110funcs, NULL, false))
 442                 Sys_Error("OpenGL 1.1.0 functions not found\n");
 443
 444         Con_DPrintf("GL_VENDOR: %s\n", gl_vendor);
 445         Con_DPrintf("GL_RENDERER: %s\n", gl_renderer);
 446         Con_DPrintf("GL_VERSION: %s\n", gl_version);
 447         Con_DPrintf("GL_EXTENSIONS: %s\n", gl_extensions);
 448         Con_DPrintf("%s_EXTENSIONS: %s\n", gl_platform, gl_platformextensions);
 449
 450         Con_DPrint("Checking OpenGL extensions...\n");
 451
 452         if (!GL_CheckExtension("glDrawRangeElements", drawrangeelementsfuncs, "-nodrawrangeelements", true))
 453                 GL_CheckExtension("GL_EXT_draw_range_elements", drawrangeelementsextfuncs, "-nodrawrangeelements", false);
 454
 455         if (GL_CheckExtension("GL_ARB_multitexture", multitexturefuncs, "-nomtex", false))
 456         {
 457                 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &gl_textureunits);
 458                 gl_combine_extension = GL_CheckExtension("GL_ARB_texture_env_combine", NULL, "-nocombine", false) || GL_CheckExtension("GL_EXT_texture_env_combine", NULL, "-nocombine", false);
 459                 if (gl_combine_extension)
 460                         gl_dot3arb = GL_CheckExtension("GL_ARB_texture_env_dot3", NULL, "-nodot3", false);
 461         }
 462
 463         gl_texture3d = GL_CheckExtension("GL_EXT_texture3D", texture3dextfuncs, "-notexture3d", false);
 464         gl_texturecubemap = GL_CheckExtension("GL_ARB_texture_cube_map", NULL, "-nocubemap", false);
 465         gl_supportslockarrays = GL_CheckExtension("GL_EXT_compiled_vertex_array", compiledvertexarrayfuncs, "-nocva", false);
 466         gl_support_clamptoedge = GL_CheckExtension("GL_EXT_texture_edge_clamp", NULL, "-noedgeclamp", false) || GL_CheckExtension("GL_SGIS_texture_edge_clamp", NULL, "-noedgeclamp", false);
 467
 468         if (!strcmp(gl_platform, "GLX"))
 469                 gl_support_var = GL_CheckExtension("GL_NV_vertex_array_range", glxvarfuncs, "-novar", false);
 470         else if (!strcmp(gl_platform, "WGL"))
 471                 gl_support_var = GL_CheckExtension("GL_NV_vertex_array_range", wglvarfuncs, "-novar", false);
 472         if (gl_support_var)
 473                 gl_support_var2 = GL_CheckExtension("GL_NV_vertex_array_range2", NULL, "-novar2", false);
 474
 475         gl_support_anisotropy = GL_CheckExtension("GL_EXT_texture_filter_anisotropic", NULL, "-noanisotropy", false);
 476
 477         gl_textureshader = GL_CheckExtension("GL_NV_texture_shader", NULL, "-notextureshader", false);
 478
 479         gl_support_stenciltwoside = GL_CheckExtension("GL_EXT_stencil_two_side", stenciltwosidefuncs, "-nostenciltwoside", false);
 480
 481         // we don't care if it's an extension or not, they are identical functions, so keep it simple in the rendering code
 482         if (qglDrawRangeElements == NULL)
 483                 qglDrawRangeElements = qglDrawRangeElementsEXT;
 484 }
 485
 486 int vid_vertexarrays_are_var = false;
 487 void *VID_AllocVertexArrays(mempool_t *pool, int size, int fast, float readfrequency, float writefrequency, float priority)
 488 {
 489         void *m;
 490         vid_vertexarrays_are_var = false;
 491         if (fast && qglAllocateMemoryNV)
 492         {
 493                 CHECKGLERROR
 494                 m = qglAllocateMemoryNV(size, readfrequency, writefrequency, priority);
 495                 CHECKGLERROR
 496                 if (m)
 497                 {
 498                         vid_vertexarrays_are_var = true;
 499                         return m;
 500                 }
 501         }
 502         return Mem_Alloc(pool, size);
 503 }
 504
 505 void VID_FreeVertexArrays(void *pointer)
 506 {
 507         if (vid_vertexarrays_are_var)
 508         {
 509                 CHECKGLERROR
 510                 qglFreeMemoryNV(pointer);
 511                 CHECKGLERROR
 512         }
 513         else
 514                 Mem_Free(pointer);
 515         vid_vertexarrays_are_var = false;
 516 }
 517
 518 void Force_CenterView_f (void)
 519 {
 520         cl.viewangles[PITCH] = 0;
 521 }
 522
 523 void IN_PreMove(void)
 524 {
 525 }
 526
 527 void CL_AdjustAngles(void);
 528 void IN_PostMove(void)
 529 {
 530         // clamp after the move as well to prevent messed up rendering angles
 531         CL_AdjustAngles();
 532 }
 533
 534 /*
 535 ===========
 536 IN_DoMove
 537 ===========
 538 */
 539 void IN_ProcessMove(usercmd_t *cmd)
 540 {
 541         // get basic movement from keyboard
 542         CL_BaseMove(cmd);
 543
 544         // OS independent code
 545         IN_PreMove();
 546
 547         // allow mice or other external controllers to add to the move
 548         IN_Move(cmd);
 549
 550         // OS independent code
 551         IN_PostMove();
 552 }
 553
 554
 555 void IN_Mouse(usercmd_t *cmd, float mx, float my)
 556 {
 557         int mouselook = (in_mlook.state & 1) || freelook.integer;
 558         float mouse_x, mouse_y;
 559         static float old_mouse_x = 0, old_mouse_y = 0;
 560
 561         if (m_filter.integer)
 562         {
 563                 mouse_x = (mx + old_mouse_x) * 0.5;
 564                 mouse_y = (my + old_mouse_y) * 0.5;
 565         }
 566         else
 567         {
 568                 mouse_x = mx;
 569                 mouse_y = my;
 570         }
 571
 572         old_mouse_x = mx;
 573         old_mouse_y = my;
 574
 575         in_mouse_x = (float) mouse_x * vid.conwidth / vid.realwidth;
 576         in_mouse_y = (float) mouse_y * vid.conheight / vid.realheight;
 577
 578         // AK: eveything else is client stuff
 579         // BTW, this should be seperated somewhen
 580         if(!in_client_mouse)
 581                 return;
 582
 583         // LordHavoc: viewzoom affects mouse sensitivity for sniping
 584         mouse_x *= sensitivity.value * cl.viewzoom;
 585         mouse_y *= sensitivity.value * cl.viewzoom;
 586
 587         // Add mouse X/Y movement to cmd
 588         if ((in_strafe.state & 1) || (lookstrafe.integer && mouselook))
 589                 cmd->sidemove += m_side.value * mouse_x;
 590         else
 591                 cl.viewangles[YAW] -= m_yaw.value * mouse_x;
 592
 593         if (mouselook)
 594                 V_StopPitchDrift();
 595
 596         if (mouselook && !(in_strafe.state & 1))
 597                 cl.viewangles[PITCH] += m_pitch.value * mouse_y;
 598         else
 599         {
 600                 if ((in_strafe.state & 1) && noclip_anglehack)
 601                         cmd->upmove -= m_forward.value * mouse_y;
 602                 else
 603                         cmd->forwardmove -= m_forward.value * mouse_y;
 604         }
 605 }
 606
 607 static float cachegamma, cachebrightness, cachecontrast, cacheblack[3], cachegrey[3], cachewhite[3];
 608 static int cachecolorenable, cachehwgamma;
 609 #define BOUNDCVAR(cvar, m1, m2) c = &(cvar);f = bound(m1, c->value, m2);if (c->value != f) Cvar_SetValueQuick(c, f);
 610 void VID_UpdateGamma(qboolean force)
 611 {
 612         cvar_t *c;
 613         float f;
 614         static int forcenextframe = false;
 615
 616         // LordHavoc: don't mess with gamma tables if running dedicated
 617         if (cls.state == ca_dedicated)
 618                 return;
 619
 620         if (!force
 621          && !forcenextframe
 622          && !v_psycho.integer
 623          && vid_usinghwgamma == (vid_activewindow && v_hwgamma.integer)
 624          && v_gamma.value == cachegamma
 625          && v_contrast.value == cachecontrast
 626          && v_brightness.value == cachebrightness
 627          && cachecolorenable == v_color_enable.integer
 628          && cacheblack[0] == v_color_black_r.value
 629          && cacheblack[1] == v_color_black_g.value
 630          && cacheblack[2] == v_color_black_b.value
 631          && cachegrey[0] == v_color_grey_r.value
 632          && cachegrey[1] == v_color_grey_g.value
 633          && cachegrey[2] == v_color_grey_b.value
 634          && cachewhite[0] == v_color_white_r.value
 635          && cachewhite[1] == v_color_white_g.value
 636          && cachewhite[2] == v_color_white_b.value)
 637                 return;
 638
 639         forcenextframe = false;
 640
 641         if (vid_activewindow && v_hwgamma.integer)
 642         {
 643                 if (!vid_usinghwgamma)
 644                 {
 645                         vid_usinghwgamma = true;
 646                         Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_GetGamma(vid_systemgammaramps));
 647                 }
 648
 649                 BOUNDCVAR(v_gamma, 0.1, 5);cachegamma = v_gamma.value;
 650                 BOUNDCVAR(v_contrast, 1, 5);cachecontrast = v_contrast.value;
 651                 BOUNDCVAR(v_brightness, 0, 0.8);cachebrightness = v_brightness.value;
 652                 BOUNDCVAR(v_color_black_r, 0, 0.8);cacheblack[0] = v_color_black_r.value;
 653                 BOUNDCVAR(v_color_black_g, 0, 0.8);cacheblack[1] = v_color_black_g.value;
 654                 BOUNDCVAR(v_color_black_b, 0, 0.8);cacheblack[2] = v_color_black_b.value;
 655                 BOUNDCVAR(v_color_grey_r, 0, 0.95);cachegrey[0] = v_color_grey_r.value;
 656                 BOUNDCVAR(v_color_grey_g, 0, 0.95);cachegrey[1] = v_color_grey_g.value;
 657                 BOUNDCVAR(v_color_grey_b, 0, 0.95);cachegrey[2] = v_color_grey_b.value;
 658                 BOUNDCVAR(v_color_white_r, 1, 5);cachewhite[0] = v_color_white_r.value;
 659                 BOUNDCVAR(v_color_white_g, 1, 5);cachewhite[1] = v_color_white_g.value;
 660                 BOUNDCVAR(v_color_white_b, 1, 5);cachewhite[2] = v_color_white_b.value;
 661                 cachecolorenable = v_color_enable.integer;
 662                 cachehwgamma = v_hwgamma.integer;
 663
 664                 if (cachecolorenable)
 665                 {
 666                         BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[0]), cachewhite[0], cacheblack[0], vid_gammaramps);
 667                         BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[1]), cachewhite[1], cacheblack[1], vid_gammaramps + 256);
 668                         BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[2]), cachewhite[2], cacheblack[2], vid_gammaramps + 512);
 669                 }
 670                 else
 671                 {
 672                         BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps);
 673                         BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps + 256);
 674                         BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps + 512);
 675                 }
 676
 677                 // LordHavoc: this code came from Ben Winslow and Zinx Verituse, I have
 678                 // immensely butchered it to work with variable framerates and fit in with
 679                 // the rest of darkplaces.
 680                 if (v_psycho.integer)
 681                 {
 682                         int x, y;
 683                         float t;
 684                         static float n[3], nd[3], nt[3];
 685                         static int init = true;
 686                         unsigned short *ramp;
 687                         forcenextframe = true;
 688                         if (init)
 689                         {
 690                                 init = false;
 691                                 for (x = 0;x < 3;x++)
 692                                 {
 693                                         n[x] = lhrandom(0, 1);
 694                                         nd[x] = (rand()&1)?-0.25:0.25;
 695                                         nt[x] = lhrandom(1, 8.2);
 696                                 }
 697                         }
 698
 699                         for (x = 0;x < 3;x++)
 700                         {
 701                                 nt[x] -= host_realframetime;
 702                                 if (nt[x] < 0)
 703                                 {
 704                                         nd[x] = -nd[x];
 705                                         nt[x] += lhrandom(1, 8.2);
 706                                 }
 707                                 n[x] += nd[x] * host_realframetime;
 708                                 n[x] -= floor(n[x]);
 709                         }
 710
 711                         for (x = 0, ramp = vid_gammaramps;x < 3;x++)
 712                                 for (y = 0, t = n[x] - 0.75f;y < 256;y++, t += 0.75f * (2.0f / 256.0f))
 713                                         *ramp++ = cos(t*(M_PI*2.0)) * 32767.0f + 32767.0f;
 714                 }
 715
 716                 Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_gammaramps));
 717         }
 718         else
 719         {
 720                 if (vid_usinghwgamma)
 721                 {
 722                         vid_usinghwgamma = false;
 723                         Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_systemgammaramps));
 724                 }
 725         }
 726 }
 727
 728 void VID_RestoreSystemGamma(void)
 729 {
 730         if (vid_usinghwgamma)
 731         {
 732                 vid_usinghwgamma = false;
 733                 VID_SetGamma(vid_systemgammaramps);
 734         }
 735 }
 736
 737 void VID_Shared_Init(void)
 738 {
 739         Cvar_RegisterVariable(&vid_hardwaregammasupported);
 740         Cvar_RegisterVariable(&v_gamma);
 741         Cvar_RegisterVariable(&v_brightness);
 742         Cvar_RegisterVariable(&v_contrast);
 743
 744         Cvar_RegisterVariable(&v_color_enable);
 745         Cvar_RegisterVariable(&v_color_black_r);
 746         Cvar_RegisterVariable(&v_color_black_g);
 747         Cvar_RegisterVariable(&v_color_black_b);
 748         Cvar_RegisterVariable(&v_color_grey_r);
 749         Cvar_RegisterVariable(&v_color_grey_g);
 750         Cvar_RegisterVariable(&v_color_grey_b);
 751         Cvar_RegisterVariable(&v_color_white_r);
 752         Cvar_RegisterVariable(&v_color_white_g);
 753         Cvar_RegisterVariable(&v_color_white_b);
 754
 755         Cvar_RegisterVariable(&v_hwgamma);
 756
 757         Cvar_RegisterVariable(&v_psycho);
 758
 759         Cvar_RegisterVariable(&vid_fullscreen);
 760         Cvar_RegisterVariable(&vid_width);
 761         Cvar_RegisterVariable(&vid_height);
 762         Cvar_RegisterVariable(&vid_bitsperpixel);
 763         Cvar_RegisterVariable(&vid_mouse);
 764         Cvar_RegisterVariable(&gl_combine);
 765         Cvar_RegisterVariable(&in_pitch_min);
 766         Cvar_RegisterVariable(&in_pitch_max);
 767         Cvar_RegisterVariable(&m_filter);
 768         Cmd_AddCommand("force_centerview", Force_CenterView_f);
 769         Cmd_AddCommand("vid_restart", VID_Restart_f);
 770         if (gamemode == GAME_GOODVSBAD2)
 771                 Cvar_Set("gl_combine", "0");
 772 }
 773
 774 int current_vid_fullscreen;
 775 int current_vid_width;
 776 int current_vid_height;
 777 int current_vid_bitsperpixel;
 778 int VID_Mode(int fullscreen, int width, int height, int bpp)
 779 {
 780         Con_Printf("Video: %s %dx%dx%d\n", fullscreen ? "fullscreen" : "window", width, height, bpp);
 781         if (VID_InitMode(fullscreen, width, height, bpp))
 782         {
 783                 current_vid_fullscreen = fullscreen;
 784                 current_vid_width = width;
 785                 current_vid_height = height;
 786                 current_vid_bitsperpixel = bpp;
 787                 Cvar_SetValueQuick(&vid_fullscreen, fullscreen);
 788                 Cvar_SetValueQuick(&vid_width, width);
 789                 Cvar_SetValueQuick(&vid_height, height);
 790                 Cvar_SetValueQuick(&vid_bitsperpixel, bpp);
 791                 return true;
 792         }
 793         else
 794                 return false;
 795 }
 796
 797 static void VID_OpenSystems(void)
 798 {
 799         R_Modules_Start();
 800         S_Startup();
 801         CDAudio_Startup();
 802 }
 803
 804 static void VID_CloseSystems(void)
 805 {
 806         CDAudio_Shutdown();
 807         S_Shutdown();
 808         R_Modules_Shutdown();
 809 }
 810
 811 int vid_commandlinecheck = true;
 812
 813 void VID_Restart_f(void)
 814 {
 815         // don't crash if video hasn't started yet
 816         if (vid_commandlinecheck)
 817                 return;
 818
 819         Con_Printf("VID_Restart: changing from %s %dx%dx%dbpp, to %s %dx%dx%dbpp.\n",
 820                 current_vid_fullscreen ? "fullscreen" : "window", current_vid_width, current_vid_height, current_vid_bitsperpixel,
 821                 vid_fullscreen.integer ? "fullscreen" : "window", vid_width.integer, vid_height.integer, vid_bitsperpixel.integer);
 822         VID_Close();
 823         if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer))
 824         {
 825                 Con_Print("Video mode change failed\n");
 826                 if (!VID_Mode(current_vid_fullscreen, current_vid_width, current_vid_height, current_vid_bitsperpixel))
 827                         Sys_Error("Unable to restore to last working video mode\n");
 828         }
 829         VID_OpenSystems();
 830 }
 831
 832 void VID_Open(void)
 833 {
 834         int i, width, height, success;
 835         if (vid_commandlinecheck)
 836         {
 837                 // interpret command-line parameters
 838                 vid_commandlinecheck = false;
 839                 if (COM_CheckParm("-window") || COM_CheckParm("-safe"))
 840                         Cvar_SetValueQuick(&vid_fullscreen, false);
 841                 if (COM_CheckParm("-fullscreen"))
 842                         Cvar_SetValueQuick(&vid_fullscreen, true);
 843                 width = 0;
 844                 height = 0;
 845                 if ((i = COM_CheckParm("-width")) != 0)
 846                         width = atoi(com_argv[i+1]);
 847                 if ((i = COM_CheckParm("-height")) != 0)
 848                         height = atoi(com_argv[i+1]);
 849                 if (width == 0)
 850                         width = height * 4 / 3;
 851                 if (height == 0)
 852                         height = width * 3 / 4;
 853                 if (width)
 854                         Cvar_SetValueQuick(&vid_width, width);
 855                 if (height)
 856                         Cvar_SetValueQuick(&vid_height, height);
 857                 if ((i = COM_CheckParm("-bpp")) != 0)
 858                         Cvar_SetQuick(&vid_bitsperpixel, com_argv[i+1]);
 859         }
 860
 861         Con_DPrint("Starting video system\n");
 862         success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer);
 863         if (!success)
 864         {
 865                 Con_Print("Desired video mode fail, trying fallbacks...\n");
 866                 if (!success && vid_bitsperpixel.integer > 16)
 867                         success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, 16);
 868                 if (!success && (vid_width.integer > 640 || vid_height.integer > 480))
 869                         success = VID_Mode(vid_fullscreen.integer, 640, 480, 16);
 870                 if (!success && vid_fullscreen.integer)
 871                         success = VID_Mode(false, 640, 480, 16);
 872                 if (!success)
 873                         Sys_Error("Video modes failed\n");
 874         }
 875         VID_OpenSystems();
 876 }
 877
 878 void VID_Close(void)
 879 {
 880         VID_CloseSystems();
 881         VID_Shutdown();
 882 }
 883