/* vid_glx.c OpenGL GLX video driver Copyright (C) 1996-1997 Id Software, Inc. Copyright (C) 2000 Marcus Sundberg [mackan@stacken.kth.se] This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to: Free Software Foundation, Inc. 59 Temple Place - Suite 330 Boston, MA 02111-1307, USA */ static const char rcsid[] = "$Id$"; #ifdef HAVE_CONFIG_H # include "config.h" #endif #ifdef HAVE_STRING_H # include #endif #ifdef HAVE_STRINGS_H # include #endif #ifdef HAVE_DLOPEN # include #endif #include #include #include #ifdef HAVE_DGA # include #endif #include "QF/cmd.h" #include "QF/console.h" #include "QF/cvar.h" #include "QF/input.h" #include "QF/qargs.h" #include "QF/qendian.h" #include "QF/sys.h" #include "QF/va.h" #include "QF/vid.h" #include "QF/GL/funcs.h" #include "compat.h" #include "context_x11.h" #include "sbar.h" #include "r_cvar.h" #define WARP_WIDTH 320 #define WARP_HEIGHT 200 /* GLXContext is a pointer to opaque data. */ typedef struct __GLXcontextRec *GLXContext; #define GLX_RGBA 4 // true if RGBA mode #define GLX_DOUBLEBUFFER 5 // double buffering supported #define GLX_RED_SIZE 8 // number of red component bits #define GLX_GREEN_SIZE 9 // number of green component bits #define GLX_BLUE_SIZE 10 // number of blue component bits #define GLX_DEPTH_SIZE 12 // number of depth bits static GLXContext ctx = NULL; typedef XID GLXDrawable; void (* qfglXSwapBuffers) (Display *dpy, GLXDrawable drawable); XVisualInfo* (* qfglXChooseVisual) (Display *dpy, int screen, int *attribList); GLXContext (* qfglXCreateContext) (Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct); Bool (* qfglXMakeCurrent) (Display *dpy, GLXDrawable drawable, GLXContext ctx); /*-----------------------------------------------------------------------*/ #if defined(HAVE_DLOPEN) void * (* glGetProcAddress) (const char *symbol) = NULL; void * (* getProcAddress) (void *handle, const char *symbol); void * QFGL_LoadLibrary (void) { void *handle; if (!(handle = dlopen (gl_driver->string, RTLD_NOW))) { Sys_Error ("Couldn't load OpenGL library %s: %s", gl_driver->string, dlerror ()); } getProcAddress = dlsym; glGetProcAddress = dlsym (handle, "glXGetProcAddressARB"); return handle; } #else # error "Cannot load libraries: %s was not configured with DSO support" // the following is to avoid other compiler errors void * (* getProcAddress) (void *handle, const char *symbol); void * QFGL_LoadLibrary (void) { return 0; } #endif // HAVE_DLOPEN void VID_Shutdown (void) { if (!vid.initialized) return; Con_Printf ("VID_Shutdown\n"); X11_RestoreVidMode (); X11_CloseDisplay (); } void GL_Init (void) { GL_Init_Common (); } void GL_EndRendering (void) { qfglFinish (); qfglXSwapBuffers (x_disp, x_win); Sbar_Changed (); } void VID_Center_f (void) { X11_ForceViewPort (); } void VID_Init (unsigned char *palette) { int i; int attrib[] = { GLX_RGBA, GLX_RED_SIZE, 1, GLX_GREEN_SIZE, 1, GLX_BLUE_SIZE, 1, GLX_DOUBLEBUFFER, GLX_DEPTH_SIZE, 1, None }; GL_Pre_Init (); qfglXSwapBuffers = QFGL_ProcAddress (libgl_handle, "glXSwapBuffers", true); qfglXChooseVisual = QFGL_ProcAddress (libgl_handle, "glXChooseVisual", true); qfglXCreateContext = QFGL_ProcAddress (libgl_handle, "glXCreateContext", true); qfglXMakeCurrent = QFGL_ProcAddress (libgl_handle, "glXMakeCurrent", true); Cmd_AddCommand ("vid_center", VID_Center_f, "Center the view port on the " "quake window in a virtual desktop.\n"); VID_GetWindowSize (640, 480); Con_CheckResize (); // Now that we have a window size, fix console vid.maxwarpwidth = WARP_WIDTH; vid.maxwarpheight = WARP_HEIGHT; vid.colormap8 = vid_colormap; vid.fullbright = 256 - LittleLong (*((int *) vid.colormap8 + 2048)); /* Interpret command-line params */ /* Set vid parameters */ if ((i = COM_CheckParm ("-conwidth"))) vid.conwidth = atoi (com_argv[i + 1]); else vid.conwidth = scr_width; vid.conwidth &= 0xfff8; // make it a multiple of eight vid.conwidth = max (vid.conwidth, 320); // pick a conheight that matches with correct aspect vid.conheight = vid.conwidth * 3 / 4; if ((i = COM_CheckParm ("-conheight"))) // conheight no smaller than // 200px vid.conheight = atoi (com_argv[i + 1]); vid.conheight = max (vid.conheight, 200); X11_OpenDisplay (); x_visinfo = qfglXChooseVisual (x_disp, x_screen, attrib); if (!x_visinfo) { Sys_Error ("Error couldn't get an RGB, Double-buffered, Depth visual"); } x_vis = x_visinfo->visual; X11_SetVidMode (scr_width, scr_height); X11_CreateWindow (scr_width, scr_height); /* Invisible cursor */ X11_CreateNullCursor (); XSync (x_disp, 0); ctx = qfglXCreateContext (x_disp, x_visinfo, NULL, True); qfglXMakeCurrent (x_disp, x_win, ctx); vid.height = vid.conheight = min (vid.conheight, scr_height); vid.width = vid.conwidth = min (vid.conwidth, scr_width); vid.aspect = ((float) vid.height / (float) vid.width) * (320.0 / 240.0); vid.numpages = 2; // InitSig (); // trap evil signals GL_Init (); VID_InitGamma (palette); // Check for 8-bit extension and initialize if present VID_Init8bitPalette (); VID_SetPalette (palette); Con_Printf ("Video mode %dx%d initialized.\n", scr_width, scr_height); vid.initialized = true; vid.recalc_refdef = 1; // force a surface cache flush } void VID_Init_Cvars () { X11_Init_Cvars (); } void VID_SetCaption (const char *text) { if (text && *text) { char *temp = strdup (text); X11_SetCaption (va ("%s %s: %s", PROGRAM, VERSION, temp)); free (temp); } else { X11_SetCaption (va ("%s %s", PROGRAM, VERSION)); } } void VID_ForceViewPort(void) { X11_ForceViewPort (); } qboolean VID_SetGamma (double gamma) { return X11_SetGamma (gamma); }