fix another incorrect free

Author: ffreyer

Diff for: GLMakie/src/GLAbstraction/GLTypes.jl

@@ -431,6 +431,8 @@ include("GLRenderObject.jl")
 ####################################################################################
 # freeing
 
+# const TRACE_FREE = Ref(false)
+
 function free(x::T, called_from_finalizer = false) where {T}
     # don't free if already freed (this should only be set by unsafe_free)
     x.id == 0 && return
@@ -439,6 +441,17 @@ function free(x::T, called_from_finalizer = false) where {T}
     #       to be active or alive here, because unsafe_free() may also do
     #       cleanup that doesn't depend on context
 
+    # if TRACE_FREE[]
+    #     try
+    #         error("tracing...")
+    #     catch e
+    #         bt = catch_backtrace()
+    #         Threads.@spawn begin
+    #             @warn "free(::$T)" exception = (e, bt)
+    #         end
+    #     end
+    # end
+
     # This may be called from the scene finalizer in which case no errors and
     # no printing allowed from the current task
     if called_from_finalizer

Diff for: GLMakie/src/gl_backend.jl

@@ -39,10 +39,10 @@ function get_texture!(context, atlas::Makie.TextureAtlas, called_from_finalizer
             catch e
                 if called_from_finalizer
                     Threads.@spawn begin
-                        @error "Cached atlas textures should be removed explicitly!" exception = (e, catch_backtrace())
+                        @error "Cached atlas textures should be removed explicitly! Dropping $(tex_func[1].id)" exception = (e, catch_backtrace())
                     end
                 else
-                    @error "Cached atlas textures should be removed explicitly!" exception = (e, catch_backtrace())
+                    @error "Cached atlas textures should be removed explicitly! Dropping $(tex_func[1].id)" exception = (e, catch_backtrace())
                 end
             end
             tex_func[1].id = 0 # Should get cleaned up when OpenGL context gets destroyed

Diff for: GLMakie/src/postprocessing.jl

@@ -399,6 +399,7 @@ function construct(::Val{:FXAA1}, screen, framebuffer, inputs, parent)
         loadshader("postprocessing/postprocess.frag"),
         view = Dict("FILTER_IN_SHADER" => filter_fxaa_in_shader ? "#define FILTER_IN_SHADER" : "")
     )
+    filter_fxaa_in_shader || pop!(inputs, :objectid_buffer)
     robj = RenderObject(inputs, shader, PostprocessPrerender(), nothing, screen.glscreen)
     robj.postrenderfunction = () -> draw_fullscreen(robj.vertexarray.id)
 

Diff for: GLMakie/test/glmakie_refimages.jl

@@ -170,7 +170,7 @@ end
 end
 
 @reference_test "render stage parameters with SSAO postprocessor" begin
-    GLMakie.closeall()
+    GLMakie.closeall() # (mostly?) for recompilation of plot shaders
     GLMakie.activate!(ssao = true)
     f = Figure()
     ps = [Point3f(x, y, sin(x * y + y-x)) for x in range(-2, 2, length=21) for y in range(-2, 2, length=21)]