]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - vid_shared.c
huge audit of dprints throughout engine, all notices of successfully
[xonotic/darkplaces.git] / vid_shared.c
index 2d1a4b77d6085942142e9b3ea0a37e6c32c5d680..c864fb99466e90bef665fb9cfa49977824ee5367 100644 (file)
@@ -83,6 +83,7 @@ cvar_t vid_width = {CVAR_SAVE, "vid_width", "640", "resolution"};
 cvar_t vid_height = {CVAR_SAVE, "vid_height", "480", "resolution"};
 cvar_t vid_bitsperpixel = {CVAR_SAVE, "vid_bitsperpixel", "32", "how many bits per pixel to render at (32 or 16, 32 is recommended)"};
 cvar_t vid_refreshrate = {CVAR_SAVE, "vid_refreshrate", "60", "refresh rate to use, in hz (higher values flicker less, if supported by your monitor)"};
+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"};
 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"};
 
 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"};
@@ -111,6 +112,7 @@ cvar_t v_color_white_r = {CVAR_SAVE, "v_color_white_r", "1", "desired color of w
 cvar_t v_color_white_g = {CVAR_SAVE, "v_color_white_g", "1", "desired color of white"};
 cvar_t v_color_white_b = {CVAR_SAVE, "v_color_white_b", "1", "desired color of white"};
 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"};
+cvar_t v_glslgamma = {CVAR_SAVE, "v_glslgamma", "0", "enables use of GLSL to apply gamma correction ramps if available (note: overrides v_hwgamma)"};
 cvar_t v_psycho = {0, "v_psycho", "0", "easter egg (does not work on Windows2000 or above)"};
 
 // brand of graphics chip
@@ -383,14 +385,14 @@ 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) || COM_CheckParm("-safe")))
        {
-               Con_Print("disabled by commandline\n");
+               Con_DPrint("disabled by commandline\n");
                return false;
        }
 
@@ -402,19 +404,19 @@ int GL_CheckExtension(const char *name, const dllfunction_t *funcs, const char *
                        if (!(*func->funcvariable = (void *) GL_GetProcAddress(func->name)))
                        {
                                if (!silent)
-                                       Con_Printf("OpenGL extension \"%s\" is missing function \"%s\" - broken driver!\n", name, func->name);
+                                       Con_DPrintf("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_Print("enabled\n");
+               Con_DPrint("enabled\n");
                return true;
        }
        else
        {
-               Con_Print("not detected\n");
+               Con_DPrint("not detected\n");
                return false;
        }
 }
@@ -736,16 +738,10 @@ void VID_CheckExtensions(void)
        if (!GL_CheckExtension("OpenGL 1.1.0", opengl110funcs, NULL, false))
                Sys_Error("OpenGL 1.1.0 functions not found");
 
-       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);
-
        CHECKGLERROR
        qglGetIntegerv(GL_MAX_TEXTURE_SIZE, &gl_max_texture_size);
 
-       Con_Print("Checking OpenGL extensions...\n");
+       Con_DPrint("Checking OpenGL extensions...\n");
 
 // COMMANDLINEOPTION: GL: -nodrawrangeelements disables GL_EXT_draw_range_elements (renders faster)
        if (!GL_CheckExtension("glDrawRangeElements", drawrangeelementsfuncs, "-nodrawrangeelements", true))
@@ -824,17 +820,80 @@ void Force_CenterView_f (void)
 static int gamma_forcenextframe = false;
 static float cachegamma, cachebrightness, cachecontrast, cacheblack[3], cachegrey[3], cachewhite[3], cachecontrastboost;
 static int cachecolorenable, cachehwgamma;
+
+unsigned int vid_gammatables_serial = 0; // so other subsystems can poll if gamma parameters have changed
+qboolean vid_gammatables_trivial = true;
+void VID_BuildGammaTables(unsigned short *ramps, int rampsize)
+{
+       if (cachecolorenable)
+       {
+               BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[0]), cachewhite[0], cacheblack[0], cachecontrastboost, ramps, rampsize);
+               BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[1]), cachewhite[1], cacheblack[1], cachecontrastboost, ramps + rampsize, rampsize);
+               BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[2]), cachewhite[2], cacheblack[2], cachecontrastboost, ramps + rampsize*2, rampsize);
+       }
+       else
+       {
+               BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, cachecontrastboost, ramps, rampsize);
+               BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, cachecontrastboost, ramps + rampsize, rampsize);
+               BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, cachecontrastboost, ramps + rampsize*2, rampsize);
+       }
+
+       // 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;
+               gamma_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] -= cl.realframetime;
+                       if (nt[x] < 0)
+                       {
+                               nd[x] = -nd[x];
+                               nt[x] += lhrandom(1, 8.2);
+                       }
+                       n[x] += nd[x] * cl.realframetime;
+                       n[x] -= floor(n[x]);
+               }
+
+               for (x = 0, ramp = ramps;x < 3;x++)
+                       for (y = 0, t = n[x] - 0.75f;y < rampsize;y++, t += 0.75f * (2.0f / rampsize))
+                               *ramp++ = (unsigned short)(cos(t*(M_PI*2.0)) * 32767.0f + 32767.0f);
+       }
+}
+
 void VID_UpdateGamma(qboolean force, int rampsize)
 {
        cvar_t *c;
        float f;
        int wantgamma;
+       qboolean gamma_changed = false;
 
        // LordHavoc: don't mess with gamma tables if running dedicated
        if (cls.state == ca_dedicated)
                return;
 
-       wantgamma = (vid_activewindow ? v_hwgamma.integer : 0);
+       wantgamma = v_hwgamma.integer;
+       if(r_glsl.integer && v_glslgamma.integer)
+               wantgamma = 0;
+       if(!vid_activewindow)
+               wantgamma = 0;
 #define BOUNDCVAR(cvar, m1, m2) c = &(cvar);f = bound(m1, c->value, m2);if (c->value != f) Cvar_SetValueQuick(c, f);
        BOUNDCVAR(v_gamma, 0.1, 5);
        BOUNDCVAR(v_contrast, 1, 5);
@@ -851,10 +910,36 @@ void VID_UpdateGamma(qboolean force, int rampsize)
        BOUNDCVAR(v_color_white_b, 1, 5);
 #undef BOUNDCVAR
 
-       if (force || v_psycho.integer)
-               gamma_forcenextframe = true;
-#define GAMMACHECK(cache, value) if (cache != (value)) gamma_forcenextframe = true;cache = (value)
-       GAMMACHECK(cachehwgamma    , wantgamma);
+       // set vid_gammatables_trivial to true if the current settings would generate the identity gamma table
+       vid_gammatables_trivial = false;
+       if(v_psycho.integer == 0)
+       if(v_contrastboost.value == 1)
+       {
+               if(v_color_enable.integer)
+               {
+                       if(v_color_black_r.value == 0)
+                       if(v_color_black_g.value == 0)
+                       if(v_color_black_b.value == 0)
+                       if(fabs(v_color_grey_r.value - 0.5) < 1e-6)
+                       if(fabs(v_color_grey_g.value - 0.5) < 1e-6)
+                       if(fabs(v_color_grey_b.value - 0.5) < 1e-6)
+                       if(v_color_white_r.value == 1)
+                       if(v_color_white_g.value == 1)
+                       if(v_color_white_b.value == 1)
+                               vid_gammatables_trivial = true;
+               }
+               else
+               {
+                       if(v_gamma.value == 1)
+                       if(v_contrast.value == 1)
+                       if(v_brightness.value == 0)
+                               vid_gammatables_trivial = true;
+               }
+       }
+
+#define GAMMACHECK(cache, value) if (cache != (value)) gamma_changed = true;cache = (value)
+       if(v_psycho.integer)
+               gamma_changed = true;
        GAMMACHECK(cachegamma      , v_gamma.value);
        GAMMACHECK(cachecontrast   , v_contrast.value);
        GAMMACHECK(cachebrightness , v_brightness.value);
@@ -869,9 +954,14 @@ void VID_UpdateGamma(qboolean force, int rampsize)
        GAMMACHECK(cachewhite[0]   , v_color_white_r.value);
        GAMMACHECK(cachewhite[1]   , v_color_white_g.value);
        GAMMACHECK(cachewhite[2]   , v_color_white_b.value);
+
+       if(gamma_changed)
+               ++vid_gammatables_serial;
+
+       GAMMACHECK(cachehwgamma    , wantgamma);
 #undef GAMMACHECK
 
-       if (!gamma_forcenextframe)
+       if (!force && !gamma_forcenextframe && !gamma_changed)
                return;
 
        gamma_forcenextframe = false;
@@ -892,57 +982,7 @@ void VID_UpdateGamma(qboolean force, int rampsize)
                        VID_GetGamma(vid_systemgammaramps, vid_gammarampsize);
                }
 
-               if (cachecolorenable)
-               {
-                       BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[0]), cachewhite[0], cacheblack[0], cachecontrastboost, vid_gammaramps, rampsize);
-                       BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[1]), cachewhite[1], cacheblack[1], cachecontrastboost, vid_gammaramps + vid_gammarampsize, rampsize);
-                       BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[2]), cachewhite[2], cacheblack[2], cachecontrastboost, vid_gammaramps + vid_gammarampsize*2, rampsize);
-               }
-               else
-               {
-                       BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, cachecontrastboost, vid_gammaramps, rampsize);
-                       BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, cachecontrastboost, vid_gammaramps + vid_gammarampsize, rampsize);
-                       BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, cachecontrastboost, vid_gammaramps + vid_gammarampsize*2, rampsize);
-               }
-
-               // 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;
-                       gamma_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] -= cl.realframetime;
-                               if (nt[x] < 0)
-                               {
-                                       nd[x] = -nd[x];
-                                       nt[x] += lhrandom(1, 8.2);
-                               }
-                               n[x] += nd[x] * cl.realframetime;
-                               n[x] -= floor(n[x]);
-                       }
-
-                       for (x = 0, ramp = vid_gammaramps;x < 3;x++)
-                               for (y = 0, t = n[x] - 0.75f;y < vid_gammarampsize;y++, t += 0.75f * (2.0f / vid_gammarampsize))
-                                       *ramp++ = (unsigned short)(cos(t*(M_PI*2.0)) * 32767.0f + 32767.0f);
-               }
+               VID_BuildGammaTables(vid_gammaramps, vid_gammarampsize);
 
                // set vid_hardwaregammasupported to true if VID_SetGamma succeeds, OR if vid_hwgamma is >= 2 (forced gamma - ignores driver return value)
                Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_gammaramps, vid_gammarampsize) || cachehwgamma >= 2);
@@ -997,6 +1037,7 @@ void VID_Shared_Init(void)
        Cvar_RegisterVariable(&v_color_white_b);
 
        Cvar_RegisterVariable(&v_hwgamma);
+       Cvar_RegisterVariable(&v_glslgamma);
 
        Cvar_RegisterVariable(&v_psycho);
 
@@ -1005,6 +1046,7 @@ void VID_Shared_Init(void)
        Cvar_RegisterVariable(&vid_height);
        Cvar_RegisterVariable(&vid_bitsperpixel);
        Cvar_RegisterVariable(&vid_refreshrate);
+       Cvar_RegisterVariable(&vid_userefreshrate);
        Cvar_RegisterVariable(&vid_stereobuffer);
        Cvar_RegisterVariable(&vid_vsync);
        Cvar_RegisterVariable(&vid_mouse);
@@ -1024,8 +1066,8 @@ void VID_Shared_Init(void)
 int VID_Mode(int fullscreen, int width, int height, int bpp, int refreshrate, int stereobuffer)
 {
        cl_ignoremousemoves = 2;
-       Con_Printf("Video: %s %dx%dx%dx%dhz%s\n", fullscreen ? "fullscreen" : "window", width, height, bpp, refreshrate, stereobuffer ? " stereo" : "");
-       if (VID_InitMode(fullscreen, width, height, bpp, refreshrate, stereobuffer))
+       Con_Printf("Initialized Video Mode: %s %dx%dx%dx%dhz%s\n", fullscreen ? "fullscreen" : "window", width, height, bpp, refreshrate, stereobuffer ? " stereo" : "");
+       if (VID_InitMode(fullscreen, width, height, bpp, vid_userefreshrate.integer ? max(1, refreshrate) : 0, stereobuffer))
        {
                vid.fullscreen = fullscreen;
                vid.width = width;
@@ -1033,11 +1075,13 @@ int VID_Mode(int fullscreen, int width, int height, int bpp, int refreshrate, in
                vid.bitsperpixel = bpp;
                vid.refreshrate = refreshrate;
                vid.stereobuffer = stereobuffer;
+               vid.userefreshrate = vid_userefreshrate.integer;
                Cvar_SetValueQuick(&vid_fullscreen, fullscreen);
                Cvar_SetValueQuick(&vid_width, width);
                Cvar_SetValueQuick(&vid_height, height);
                Cvar_SetValueQuick(&vid_bitsperpixel, bpp);
-               Cvar_SetValueQuick(&vid_refreshrate, refreshrate);
+               if(vid_userefreshrate.integer)
+                       Cvar_SetValueQuick(&vid_refreshrate, refreshrate);
                Cvar_SetValueQuick(&vid_stereobuffer, stereobuffer);
                return true;
        }
@@ -1114,7 +1158,6 @@ void VID_Start(void)
                        Cvar_SetQuick(&vid_bitsperpixel, com_argv[i+1]);
        }
 
-       Con_Print("Starting video system\n");
        success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.integer, vid_stereobuffer.integer);
        if (!success)
        {