glx: Downgrade sRGB-ful fbconfigs

Again, NVIDIA supports this on every fbconfig, Mesa alternates it on and
off for some reason but only on some drivers, and in particular llvmpipe
doesn't try to create sRGB-ful fbconfigs. Nerf it out of the fbconfig.

Acked-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/1648>

diff --git a/src/glx/dri_common.c b/src/glx/dri_common.c
index 4577ee4..f7a1a42 100644 (file)
--- a/src/glx/dri_common.c
+++ b/src/glx/dri_common.c
@@ -278,6 +278,18 @@ driConfigEqual(const __DRIcoreExtension *core,
          }
          break;
 
+      case __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE:
+         if (!scalarEqual(config, attrib, value)) {
+            static int warned;
+            if (!warned) {
+               dri_message(_LOADER_DEBUG,
+                           "Disabling server's sRGB support\n");
+               warned = 1;
+            }
+            config->sRGBCapable = 0;
+         }
+         break;
+
       default:
          if (!scalarEqual(config, attrib, value))
             return GL_FALSE;