vid_sRGB_fallback: now 3 is unconditional, and 2 also falls back if framebuffer is...

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@11452 d7cf8633-e32d-0410-b094-e92efae38249
::stable-branch::merge=be1e5756811400102d2d73ce685e6d6bb1397b96

diff --git a/vid_shared.c b/vid_shared.c
index 6f7af37aeda84e369d6e95f14dd087de70bef01e..8c417fa5a4043bc715838e3a70d5143a3795daef 100644 (file)
--- a/vid_shared.c
+++ b/vid_shared.c
@@ -177,7 +177,7 @@ cvar_t vid_gl13 = {0, "vid_gl13", "1", "enables faster rendering using OpenGL 1.
 cvar_t vid_gl20 = {0, "vid_gl20", "1", "enables faster rendering using OpenGL 2.0 features (such as GL_ARB_fragment_shader extension)"};
 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)"};
 cvar_t vid_sRGB = {CVAR_SAVE, "vid_sRGB", "0", "if hardware is capable, modify rendering to be gamma corrected for the sRGB color standard (computer monitors, TVs), recommended"};
-cvar_t vid_sRGB_fallback = {CVAR_SAVE, "vid_sRGB_fallback", "0", "do an approximate sRGB fallback if not properly supported by hardware (2: always use the fallback even if sRGB is supported)"};
+cvar_t vid_sRGB_fallback = {CVAR_SAVE, "vid_sRGB_fallback", "0", "do an approximate sRGB fallback if not properly supported by hardware (2: also use the fallback if framebuffer is 8bit, 3: always use the fallback even if sRGB is supported)"};
 
 cvar_t vid_touchscreen = {0, "vid_touchscreen", "0", "Use touchscreen-style input (no mouse grab, track mouse motion only while button is down, screen areas for mimicing joystick axes and buttons"};
 cvar_t vid_stick_mouse = {CVAR_SAVE, "vid_stick_mouse", "0", "have the mouse stuck in the center of the screen" };
@@ -202,6 +202,8 @@ cvar_t v_glslgamma = {CVAR_SAVE, "v_glslgamma", "1", "enables use of GLSL to app
 cvar_t v_glslgamma_2d = {CVAR_SAVE, "v_glslgamma_2d", "0", "applies GLSL gamma to 2d pictures (HUD, fonts)"};
 cvar_t v_psycho = {0, "v_psycho", "0", "easter egg"};
 
+extern cvar_t r_viewfbo;
+
 // brand of graphics chip
 const char *gl_vendor;
 // graphics chip model and other information
@@ -1772,8 +1774,16 @@ int VID_Mode(int fullscreen, int width, int height, int bpp, float refreshrate,
                vid.userefreshrate = vid.mode.userefreshrate;
                vid.stereobuffer   = vid.mode.stereobuffer;
                vid.stencil        = vid.mode.bitsperpixel > 16;
-               vid.sRGB2D         = vid_sRGB.integer >= 1 && vid_sRGB_fallback.integer <= 1 && vid.sRGBcapable2D;
-               vid.sRGB3D         = vid_sRGB.integer >= 1 && vid_sRGB_fallback.integer <= 1 && vid.sRGBcapable3D;
+               vid.sRGB2D         = vid_sRGB.integer >= 1 && vid.sRGBcapable2D;
+               vid.sRGB3D         = vid_sRGB.integer >= 1 && vid.sRGBcapable3D;
+
+               if(
+                       (vid_sRGB_fallback.integer >= 3) // force fallback
+                       ||
+                       (vid_sRGB_fallback.integer >= 2 && // fallback if framebuffer is 8bit
+                               !(r_viewfbo.integer >= 2 && vid.support.ext_framebuffer_object && vid.samples < 2))
+               )
+                       vid.sRGB2D = vid.sRGB3D = false;
 
                if(vid.samples != vid.mode.samples)
                        Con_Printf("NOTE: requested %dx AA, got %dx AA\n", vid.mode.samples, vid.samples);