]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - vid_shared.c
made r_showtris transparent (quite faint actually), color coded different types of...
[xonotic/darkplaces.git] / vid_shared.c
index 044995fc71340e3345fc2aaec9afebbb9c802ea6..b0568601358366cf59067fdda4add97edb49e5e0 100644 (file)
@@ -8,6 +8,12 @@ viddef_t vid;
 qboolean isG200 = false; // LordHavoc: the Matrox G200 can't do per pixel alpha, and it uses a D3D driver for GL... ugh...
 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.
 
+// AK FIXME -> input_dest
+qboolean in_client_mouse = true;
+
+// AK where should it be placed ?
+float in_mouse_x, in_mouse_y;
+
 // GL_ARB_multitexture
 int gl_textureunits = 0;
 // GL_ARB_texture_env_combine or GL_EXT_texture_env_combine
@@ -30,17 +36,19 @@ int gl_support_clamptoedge = false;
 int gl_support_var = false;
 // GL_NV_vertex_array_range2
 int gl_support_var2 = false;
+// GL_EXT_texture_filter_anisotropic
+int gl_support_anisotropy = false;
+// GL_NV_texture_shader
+int gl_textureshader = false;
 
 // LordHavoc: if window is hidden, don't update screen
 int vid_hidden = true;
 // LordHavoc: if window is not the active window, don't hog as much CPU time,
 // let go of the mouse, turn off sound, and restore system gamma ramps...
 int vid_activewindow = true;
-// LordHavoc: whether to allow use of hwgamma (disabled when window is inactive)
-int vid_allowhwgamma = false;
 
 // we don't know until we try it!
-int vid_hardwaregammasupported = true;
+cvar_t vid_hardwaregammasupported = {CVAR_READONLY,"vid_hardwaregammasupported","1"};
 // whether hardware gamma ramps are currently in effect
 int vid_usinghwgamma = false;
 
@@ -50,11 +58,10 @@ unsigned short vid_systemgammaramps[768];
 cvar_t vid_fullscreen = {CVAR_SAVE, "vid_fullscreen", "1"};
 cvar_t vid_width = {CVAR_SAVE, "vid_width", "640"};
 cvar_t vid_height = {CVAR_SAVE, "vid_height", "480"};
-cvar_t vid_bitsperpixel = {CVAR_SAVE, "vid_bitsperpixel", "16"};
-cvar_t vid_stencil = {CVAR_SAVE, "vid_stencil", "0"};
+cvar_t vid_bitsperpixel = {CVAR_SAVE, "vid_bitsperpixel", "32"};
 
 cvar_t vid_mouse = {CVAR_SAVE, "vid_mouse", "1"};
-cvar_t gl_combine = {0, "gl_combine", "1"};
+cvar_t gl_combine = {CVAR_SAVE, "gl_combine", "1"};
 
 cvar_t in_pitch_min = {0, "in_pitch_min", "-70"};
 cvar_t in_pitch_max = {0, "in_pitch_max", "80"};
@@ -74,8 +81,8 @@ cvar_t v_color_grey_b = {CVAR_SAVE, "v_color_grey_b", "0.5"};
 cvar_t v_color_white_r = {CVAR_SAVE, "v_color_white_r", "1"};
 cvar_t v_color_white_g = {CVAR_SAVE, "v_color_white_g", "1"};
 cvar_t v_color_white_b = {CVAR_SAVE, "v_color_white_b", "1"};
-cvar_t v_overbrightbits = {CVAR_SAVE, "v_overbrightbits", "0"};
-cvar_t v_hwgamma = {0, "v_hwgamma", "1"};
+cvar_t v_hwgamma = {CVAR_SAVE, "v_hwgamma", "1"};
+cvar_t v_psycho = {0, "v_psycho", "0"};
 
 // brand of graphics chip
 const char *gl_vendor;
@@ -187,8 +194,9 @@ void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
 void (GLAPIENTRY *qglClearStencil)(GLint s);
 
 //void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
+void (GLAPIENTRY *qglTexEnvfv)(GLenum target, GLenum pname, const GLfloat *params);
 void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
-//void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
+void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
 //void (GLAPIENTRY *qglTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
 void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
 
@@ -228,14 +236,14 @@ int GL_CheckExtension(const char *name, const dllfunction_t *funcs, const char *
        int failed = false;
        const dllfunction_t *func;
 
-       Con_Printf("checking for %s...  ", name);
+       Con_DPrintf("checking for %s...  ", name);
 
        for (func = funcs;func && func->name;func++)
                *func->funcvariable = NULL;
 
-       if (disableparm && COM_CheckParm(disableparm))
+       if (disableparm && (COM_CheckParm(disableparm) || COM_CheckParm("-safe")))
        {
-               Con_Printf("disabled by commandline\n");
+               Con_DPrintf("disabled by commandline\n");
                return false;
        }
 
@@ -247,19 +255,19 @@ int GL_CheckExtension(const char *name, const dllfunction_t *funcs, const char *
                        if (!(*func->funcvariable = (void *) GL_GetProcAddress(func->name)))
                        {
                                if (!silent)
-                                       Con_Printf("missing function \"%s\" - broken driver!\n", func->name);
+                                       Con_Printf("OpenGL extension \"%s\" is missing function \"%s\" - broken driver!\n", name, func->name);
                                failed = true;
                        }
                }
                // delay the return so it prints all missing functions
                if (failed)
                        return false;
-               Con_Printf("enabled\n");
+               Con_DPrintf("enabled\n");
                return true;
        }
        else
        {
-               Con_Printf("not detected\n");
+               Con_DPrintf("not detected\n");
                return false;
        }
 }
@@ -327,8 +335,9 @@ static dllfunction_t opengl110funcs[] =
        {"glStencilOp", (void **) &qglStencilOp},
        {"glClearStencil", (void **) &qglClearStencil},
 //     {"glTexEnvf", (void **) &qglTexEnvf},
+       {"glTexEnvfv", (void **) &qglTexEnvfv},
        {"glTexEnvi", (void **) &qglTexEnvi},
-//     {"glTexParameterf", (void **) &qglTexParameterf},
+       {"glTexParameterf", (void **) &qglTexParameterf},
 //     {"glTexParameterfv", (void **) &qglTexParameterfv},
        {"glTexParameteri", (void **) &qglTexParameteri},
 //     {"glPixelStoref", (void **) &qglPixelStoref},
@@ -409,7 +418,7 @@ static dllfunction_t wglvarfuncs[] =
 
 void VID_CheckExtensions(void)
 {
-       gl_stencil = vid_stencil.integer;
+       gl_stencil = vid_bitsperpixel.integer == 32;
        gl_combine_extension = false;
        gl_dot3arb = false;
        gl_supportslockarrays = false;
@@ -421,13 +430,13 @@ void VID_CheckExtensions(void)
        if (!GL_CheckExtension("OpenGL 1.1.0", opengl110funcs, NULL, false))
                Sys_Error("OpenGL 1.1.0 functions not found\n");
 
-       Con_Printf ("GL_VENDOR: %s\n", gl_vendor);
-       Con_Printf ("GL_RENDERER: %s\n", gl_renderer);
-       Con_Printf ("GL_VERSION: %s\n", gl_version);
-       Con_Printf ("GL_EXTENSIONS: %s\n", gl_extensions);
-       Con_Printf ("%s_EXTENSIONS: %s\n", gl_platform, gl_platformextensions);
+       Con_DPrintf ("GL_VENDOR: %s\n", gl_vendor);
+       Con_DPrintf ("GL_RENDERER: %s\n", gl_renderer);
+       Con_DPrintf ("GL_VERSION: %s\n", gl_version);
+       Con_DPrintf ("GL_EXTENSIONS: %s\n", gl_extensions);
+       Con_DPrintf ("%s_EXTENSIONS: %s\n", gl_platform, gl_platformextensions);
 
-       Con_Printf("Checking OpenGL extensions...\n");
+       Con_DPrintf("Checking OpenGL extensions...\n");
 
        if (!GL_CheckExtension("glDrawRangeElements", drawrangeelementsfuncs, "-nodrawrangeelements", true))
                GL_CheckExtension("GL_EXT_draw_range_elements", drawrangeelementsextfuncs, "-nodrawrangeelements", false);
@@ -452,6 +461,10 @@ void VID_CheckExtensions(void)
        if (gl_support_var)
                gl_support_var2 = GL_CheckExtension("GL_NV_vertex_array_range2", NULL, "-novar2", false);
 
+       gl_support_anisotropy = GL_CheckExtension("GL_EXT_texture_filter_anisotropic", NULL, "-noanisotropy", false);
+
+       gl_textureshader = GL_CheckExtension("GL_NV_texture_shader", NULL, "-notextureshader", false);
+
        // we don't care if it's an extension or not, they are identical functions, so keep it simple in the rendering code
        if (qglDrawRangeElements == NULL)
                qglDrawRangeElements = qglDrawRangeElementsEXT;
@@ -505,6 +518,27 @@ void IN_PostMove(void)
        CL_AdjustAngles();
 }
 
+/*
+===========
+IN_DoMove
+===========
+*/
+void IN_ProcessMove(usercmd_t *cmd)
+{
+       // get basic movement from keyboard
+       CL_BaseMove(cmd);
+
+       // OS independent code
+       IN_PreMove();
+
+       // allow mice or other external controllers to add to the move
+       IN_Move(cmd);
+
+       // OS independent code
+       IN_PostMove();
+}
+
+
 void IN_Mouse(usercmd_t *cmd, float mx, float my)
 {
        int mouselook = (in_mlook.state & 1) || freelook.integer;
@@ -525,6 +559,14 @@ void IN_Mouse(usercmd_t *cmd, float mx, float my)
        old_mouse_x = mx;
        old_mouse_y = my;
 
+       in_mouse_x = (float) mouse_x * vid.conwidth / vid.realwidth;
+       in_mouse_y = (float) mouse_y * vid.conheight / vid.realheight;
+
+       // AK: eveything else is client stuff
+       // BTW, this should be seperated somewhen
+       if(!in_client_mouse)
+               return;
+
        // LordHavoc: viewzoom affects mouse sensitivity for sniping
        mouse_x *= sensitivity.value * cl.viewzoom;
        mouse_y *= sensitivity.value * cl.viewzoom;
@@ -550,20 +592,22 @@ void IN_Mouse(usercmd_t *cmd, float mx, float my)
 }
 
 static float cachegamma, cachebrightness, cachecontrast, cacheblack[3], cachegrey[3], cachewhite[3];
-static int cacheoverbrightbits = -1, cachecolorenable, cachehwgamma;
+static int cachecolorenable, cachehwgamma;
 #define BOUNDCVAR(cvar, m1, m2) c = &(cvar);f = bound(m1, c->value, m2);if (c->value != f) Cvar_SetValueQuick(c, f);
 void VID_UpdateGamma(qboolean force)
 {
        cvar_t *c;
        float f;
+       static int forcenextframe = false;
 
        // LordHavoc: don't mess with gamma tables if running dedicated
        if (cls.state == ca_dedicated)
                return;
 
        if (!force
-        && vid_usinghwgamma == (vid_allowhwgamma && v_hwgamma.integer)
-        && v_overbrightbits.integer == cacheoverbrightbits
+        && !forcenextframe
+        && !v_psycho.integer
+        && vid_usinghwgamma == (vid_activewindow && v_hwgamma.integer)
         && v_gamma.value == cachegamma
         && v_contrast.value == cachecontrast
         && v_brightness.value == cachebrightness
@@ -578,13 +622,15 @@ void VID_UpdateGamma(qboolean force)
         && cachewhite[1] == v_color_white_g.value
         && cachewhite[2] == v_color_white_b.value)
                return;
+               
+       forcenextframe = false;
 
-       if (vid_allowhwgamma && v_hwgamma.integer)
+       if (vid_activewindow && v_hwgamma.integer)
        {
                if (!vid_usinghwgamma)
                {
                        vid_usinghwgamma = true;
-                       vid_hardwaregammasupported = VID_GetGamma(vid_systemgammaramps);
+                       Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_GetGamma(vid_systemgammaramps));
                }
 
                BOUNDCVAR(v_gamma, 0.1, 5);cachegamma = v_gamma.value;
@@ -600,30 +646,68 @@ void VID_UpdateGamma(qboolean force)
                BOUNDCVAR(v_color_white_g, 1, 5);cachewhite[1] = v_color_white_g.value;
                BOUNDCVAR(v_color_white_b, 1, 5);cachewhite[2] = v_color_white_b.value;
                cachecolorenable = v_color_enable.integer;
-               cacheoverbrightbits = v_overbrightbits.integer;
                cachehwgamma = v_hwgamma.integer;
 
                if (cachecolorenable)
                {
-                       BuildGammaTable16((float) (1 << cacheoverbrightbits), invpow(0.5, 1 - cachegrey[0]), cachewhite[0], cacheblack[0], vid_gammaramps);
-                       BuildGammaTable16((float) (1 << cacheoverbrightbits), invpow(0.5, 1 - cachegrey[1]), cachewhite[1], cacheblack[1], vid_gammaramps + 256);
-                       BuildGammaTable16((float) (1 << cacheoverbrightbits), invpow(0.5, 1 - cachegrey[2]), cachewhite[2], cacheblack[2], vid_gammaramps + 512);
+                       BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[0]), cachewhite[0], cacheblack[0], vid_gammaramps);
+                       BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[1]), cachewhite[1], cacheblack[1], vid_gammaramps + 256);
+                       BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[2]), cachewhite[2], cacheblack[2], vid_gammaramps + 512);
                }
                else
                {
-                       BuildGammaTable16((float) (1 << cacheoverbrightbits), cachegamma, cachecontrast, cachebrightness, vid_gammaramps);
-                       BuildGammaTable16((float) (1 << cacheoverbrightbits), cachegamma, cachecontrast, cachebrightness, vid_gammaramps + 256);
-                       BuildGammaTable16((float) (1 << cacheoverbrightbits), cachegamma, cachecontrast, cachebrightness, vid_gammaramps + 512);
+                       BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps);
+                       BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps + 256);
+                       BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, vid_gammaramps + 512);
+               }
+
+               // LordHavoc: this code came from Ben Winslow and Zinx Verituse, I have
+               // immensely butchered it to work with variable framerates and fit in with
+               // the rest of darkplaces.
+               if (v_psycho.integer)
+               {
+                       int x, y;
+                       float t;
+                       static float n[3], nd[3], nt[3];
+                       static int init = true;
+                       unsigned short *ramp;
+                       forcenextframe = true;
+                       if (init)
+                       {
+                               init = false;
+                               for (x = 0;x < 3;x++)
+                               {
+                                       n[x] = lhrandom(0, 1);
+                                       nd[x] = (rand()&1)?-0.25:0.25;
+                                       nt[x] = lhrandom(1, 8.2);
+                               }
+                       }
+                       
+                       for (x = 0;x < 3;x++)
+                       {
+                               nt[x] -= host_realframetime;
+                               if (nt[x] < 0)
+                               {
+                                       nd[x] = -nd[x];
+                                       nt[x] += lhrandom(1, 8.2);
+                               }
+                               n[x] += nd[x] * host_realframetime;
+                               n[x] -= floor(n[x]);
+                       }
+               
+                       for (x = 0, ramp = vid_gammaramps;x < 3;x++)
+                               for (y = 0, t = n[x] - 0.75f;y < 256;y++, t += 0.75f * (2.0f / 256.0f))
+                                       *ramp++ = cos(t*(M_PI*2.0)) * 32767.0f + 32767.0f;
                }
 
-               vid_hardwaregammasupported = VID_SetGamma(vid_gammaramps);
+               Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_gammaramps));
        }
        else
        {
                if (vid_usinghwgamma)
                {
                        vid_usinghwgamma = false;
-                       vid_hardwaregammasupported = VID_SetGamma(vid_systemgammaramps);
+                       Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_systemgammaramps));
                }
        }
 }
@@ -639,6 +723,7 @@ void VID_RestoreSystemGamma(void)
 
 void VID_Shared_Init(void)
 {
+       Cvar_RegisterVariable(&vid_hardwaregammasupported);
        Cvar_RegisterVariable(&v_gamma);
        Cvar_RegisterVariable(&v_brightness);
        Cvar_RegisterVariable(&v_contrast);
@@ -655,13 +740,13 @@ void VID_Shared_Init(void)
        Cvar_RegisterVariable(&v_color_white_b);
 
        Cvar_RegisterVariable(&v_hwgamma);
-       Cvar_RegisterVariable(&v_overbrightbits);
+       
+       Cvar_RegisterVariable(&v_psycho);
 
        Cvar_RegisterVariable(&vid_fullscreen);
        Cvar_RegisterVariable(&vid_width);
        Cvar_RegisterVariable(&vid_height);
        Cvar_RegisterVariable(&vid_bitsperpixel);
-       Cvar_RegisterVariable(&vid_stencil);
        Cvar_RegisterVariable(&vid_mouse);
        Cvar_RegisterVariable(&gl_combine);
        Cvar_RegisterVariable(&in_pitch_min);
@@ -669,29 +754,27 @@ void VID_Shared_Init(void)
        Cvar_RegisterVariable(&m_filter);
        Cmd_AddCommand("force_centerview", Force_CenterView_f);
        Cmd_AddCommand("vid_restart", VID_Restart_f);
+       if (gamemode == GAME_GOODVSBAD2)
+               Cvar_Set("gl_combine", "0");
 }
 
 int current_vid_fullscreen;
 int current_vid_width;
 int current_vid_height;
 int current_vid_bitsperpixel;
-int current_vid_stencil;
-extern int VID_InitMode (int fullscreen, int width, int height, int bpp, int stencil);
-int VID_Mode(int fullscreen, int width, int height, int bpp, int stencil)
+int VID_Mode(int fullscreen, int width, int height, int bpp)
 {
-       Con_Printf("Video: %s %dx%dx%d %s\n", fullscreen ? "fullscreen" : "window", width, height, bpp, stencil ? "with stencil" : "without stencil");
-       if (VID_InitMode(fullscreen, width, height, bpp, stencil))
+       Con_Printf("Video: %s %dx%dx%d\n", fullscreen ? "fullscreen" : "window", width, height, bpp);
+       if (VID_InitMode(fullscreen, width, height, bpp))
        {
                current_vid_fullscreen = fullscreen;
                current_vid_width = width;
                current_vid_height = height;
                current_vid_bitsperpixel = bpp;
-               current_vid_stencil = stencil;
                Cvar_SetValueQuick(&vid_fullscreen, fullscreen);
                Cvar_SetValueQuick(&vid_width, width);
                Cvar_SetValueQuick(&vid_height, height);
                Cvar_SetValueQuick(&vid_bitsperpixel, bpp);
-               Cvar_SetValueQuick(&vid_stencil, stencil);
                return true;
        }
        else
@@ -701,43 +784,48 @@ int VID_Mode(int fullscreen, int width, int height, int bpp, int stencil)
 static void VID_OpenSystems(void)
 {
        R_Modules_Start();
-       S_Open();
-       CDAudio_Open();
+       S_Startup();
+       CDAudio_Startup();
 }
 
 static void VID_CloseSystems(void)
 {
-       CDAudio_Close();
-       S_Close();
+       CDAudio_Shutdown();
+       S_Shutdown();
        R_Modules_Shutdown();
 }
 
+int vid_commandlinecheck = true;
+
 void VID_Restart_f(void)
 {
-       Con_Printf("VID_Restart: changing from %s %dx%dx%dbpp %s, to %s %dx%dx%dbpp %s.\n",
-               current_vid_fullscreen ? "fullscreen" : "window", current_vid_width, current_vid_height, current_vid_bitsperpixel, current_vid_stencil ? "with stencil" : "without stencil",
-               vid_fullscreen.integer ? "fullscreen" : "window", vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_stencil.integer ? "with stencil" : "without stencil");
+       // don't crash if video hasn't started yet
+       if (vid_commandlinecheck)
+               return;
+
+       Con_Printf("VID_Restart: changing from %s %dx%dx%dbpp, to %s %dx%dx%dbpp.\n",
+               current_vid_fullscreen ? "fullscreen" : "window", current_vid_width, current_vid_height, current_vid_bitsperpixel,
+               vid_fullscreen.integer ? "fullscreen" : "window", vid_width.integer, vid_height.integer, vid_bitsperpixel.integer);
        VID_Close();
-       if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_stencil.integer))
+       if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer))
        {
                Con_Printf("Video mode change failed\n");
-               if (!VID_Mode(current_vid_fullscreen, current_vid_width, current_vid_height, current_vid_bitsperpixel, current_vid_stencil))
+               if (!VID_Mode(current_vid_fullscreen, current_vid_width, current_vid_height, current_vid_bitsperpixel))
                        Sys_Error("Unable to restore to last working video mode\n");
        }
        VID_OpenSystems();
 }
 
-int vid_commandlinecheck = true;
 void VID_Open(void)
 {
-       int i, width, height;
+       int i, width, height, success;
        if (vid_commandlinecheck)
        {
                // interpret command-line parameters
                vid_commandlinecheck = false;
-               if ((i = COM_CheckParm("-window")) != 0)
+               if (COM_CheckParm("-window") || COM_CheckParm("-safe"))
                        Cvar_SetValueQuick(&vid_fullscreen, false);
-               if ((i = COM_CheckParm("-fullscreen")) != 0)
+               if (COM_CheckParm("-fullscreen"))
                        Cvar_SetValueQuick(&vid_fullscreen, true);
                width = 0;
                height = 0;
@@ -755,33 +843,21 @@ void VID_Open(void)
                        Cvar_SetValueQuick(&vid_height, height);
                if ((i = COM_CheckParm("-bpp")) != 0)
                        Cvar_SetQuick(&vid_bitsperpixel, com_argv[i+1]);
-               if ((i = COM_CheckParm("-nostencil")) != 0)
-                       Cvar_SetValueQuick(&vid_stencil, 0);
-               if ((i = COM_CheckParm("-stencil")) != 0)
-                       Cvar_SetValueQuick(&vid_stencil, 1);
-       }
-
-       if (vid_stencil.integer && vid_bitsperpixel.integer != 32)
-       {
-               Con_Printf("vid_stencil not allowed without vid_bitsperpixel 32, turning off vid_stencil\n");
-               Cvar_SetValueQuick(&vid_stencil, 0);
        }
 
-       Con_Printf("Starting video system\n");
-       if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_stencil.integer))
+       Con_DPrintf("Starting video system\n");
+       success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer);
+       if (!success)
        {
                Con_Printf("Desired video mode fail, trying fallbacks...\n");
-               if (!vid_stencil.integer || !VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, false))
-               {
-                       if (vid_fullscreen.integer)
-                       {
-                               if (!VID_Mode(true, 640, 480, 16, false))
-                                       if (!VID_Mode(false, 640, 480, 16, false))
-                                               Sys_Error("Video modes failed\n");
-                       }
-                       else
-                               Sys_Error("Windowed video failed\n");
-               }
+               if (!success && vid_bitsperpixel.integer > 16)
+                       success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, 16);
+               if (!success && (vid_width.integer > 640 || vid_height.integer > 480))
+                       success = VID_Mode(vid_fullscreen.integer, 640, 480, 16);
+               if (!success && vid_fullscreen.integer)
+                       success = VID_Mode(false, 640, 480, 16);
+               if (!success)
+                       Sys_Error("Video modes failed\n");
        }
        VID_OpenSystems();
 }