glthread: unbind framebuffers in glDeleteFramebuffers

Tests:
    dEQP-GLES2.functional.lifetime.delete_bound.framebuffer
    dEQP-GLES2.functional.state_query.integers.framebuffer_binding_getinteger

Fixes: e48f676835 - glthread: don't sync for more glGetIntegerv enums for glretrace

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17976>
(cherry picked from commit eb4036ea5b)

.pick_status.json

@@ -373,7 +373,7 @@
         "description": "glthread: unbind framebuffers in glDeleteFramebuffers",
         "nominated": true,
         "nomination_type": 1,
-        "resolution": 0,
+        "resolution": 1,
         "main_sha": null,
         "because_sha": "e48f676835d110f907e5cd55d659dae511e4af2d"
     },

src/mapi/glapi/gen/ARB_framebuffer_object.xml

@@ -209,7 +209,8 @@
         <glx rop="236"/>
     </function>
 
-    <function name="DeleteFramebuffers" es2="2.0">
+    <function name="DeleteFramebuffers" es2="2.0"
+              marshal_call_after="_mesa_glthread_DeleteFramebuffers(ctx, n, framebuffers);">
         <param name="n" type="GLsizei" counter="true"/>
         <param name="framebuffers" type="const GLuint *" count="n"/>
 	<glx rop="4320"/>

src/mesa/main/glthread_marshal.h

@@ -779,6 +779,20 @@ _mesa_glthread_DeleteLists(struct gl_context *ctx, GLsizei range)
    _mesa_glthread_flush_batch(ctx);
 }
 
+static inline void
+_mesa_glthread_DeleteFramebuffers(struct gl_context *ctx, GLsizei n,
+                                  const GLuint *ids)
+{
+   if (ctx->GLThread.CurrentDrawFramebuffer) {
+      for (int i = 0; i < n; i++) {
+         if (ctx->GLThread.CurrentDrawFramebuffer == ids[i]) {
+            ctx->GLThread.CurrentDrawFramebuffer = 0;
+            break;
+         }
+      }
+   }
+}
+
 struct marshal_cmd_CallList
 {
    struct marshal_cmd_base cmd_base;