diff --git a/src/gfx_api.rs b/src/gfx_api.rs
index d3419454..4c135684 100644
--- a/src/gfx_api.rs
+++ b/src/gfx_api.rs
@@ -570,33 +570,6 @@ impl dyn GfxFramebuffer {
         )
     }
 
-    pub fn render_custom(
-        self: &Rc<Self>,
-        acquire_sync: AcquireSync,
-        release_sync: ReleaseSync,
-        cd: &Rc<ColorDescription>,
-        scale: Scale,
-        clear: Option<&Color>,
-        clear_cd: &Rc<LinearColorDescription>,
-        blend_buffer: Option<&Rc<dyn GfxBlendBuffer>>,
-        blend_cd: &Rc<ColorDescription>,
-        f: &mut dyn FnMut(&mut RendererBase),
-    ) -> Result<Option<FdSync>, GfxError> {
-        let mut ops = vec![];
-        let mut renderer = self.renderer_base(&mut ops, scale, Transform::None);
-        f(&mut renderer);
-        self.render(
-            acquire_sync,
-            release_sync,
-            cd,
-            &ops,
-            clear,
-            clear_cd,
-            blend_buffer,
-            blend_cd,
-        )
-    }
-
     pub fn create_render_pass(
         &self,
         node: &dyn Node,
@@ -967,45 +940,6 @@ impl Debug for GfxError {
     }
 }
 
-impl GfxFormat {
-    pub fn cross_intersect(&self, other: &GfxFormat) -> GfxFormat {
-        assert_eq!(self.format, other.format);
-        GfxFormat {
-            format: self.format,
-            read_modifiers: self
-                .read_modifiers
-                .iter()
-                .copied()
-                .filter(|m| other.write_modifiers.contains_key(m))
-                .collect(),
-            write_modifiers: self
-                .write_modifiers
-                .iter()
-                .map(|(m, v)| (*m, v.clone()))
-                .filter(|(m, _)| other.read_modifiers.contains(m))
-                .collect(),
-            supports_shm: self.supports_shm && other.supports_shm,
-        }
-    }
-}
-
-pub fn cross_intersect_formats(
-    local: &AHashMap<u32, GfxFormat>,
-    remote: &AHashMap<u32, GfxFormat>,
-) -> AHashMap<u32, GfxFormat> {
-    let mut res = AHashMap::new();
-    for lf in local.values() {
-        if let Some(rf) = remote.get(&lf.format.drm) {
-            let f = lf.cross_intersect(rf);
-            if f.read_modifiers.is_empty() && f.write_modifiers.is_empty() {
-                continue;
-            }
-            res.insert(f.format.drm, f);
-        }
-    }
-    res
-}
-
 impl PendingShmTransfer {
     pub fn new(cancel: Rc<dyn AsyncShmGfxTextureTransferCancellable>, id: u64) -> Self {
         Self { cancel, id }
diff --git a/src/renderer/renderer_base.rs b/src/renderer/renderer_base.rs
index a4f4ad41..2252cea5 100644
--- a/src/renderer/renderer_base.rs
+++ b/src/renderer/renderer_base.rs
@@ -27,10 +27,6 @@ pub struct RendererBase<'a> {
 }
 
 impl RendererBase<'_> {
-    pub fn scale(&self) -> Scale {
-        self.scale
-    }
-
     pub fn scale_point(&self, mut x: i32, mut y: i32) -> (i32, i32) {
         if self.scaled {
             [x, y] = self.scale.pixel_size([x, y]);
@@ -38,14 +34,6 @@ impl RendererBase<'_> {
         (x, y)
     }
 
-    pub fn scale_point_f(&self, mut x: f32, mut y: f32) -> (f32, f32) {
-        if self.scaled {
-            x = (x as f64 * self.scalef) as _;
-            y = (y as f64 * self.scalef) as _;
-        }
-        (x, y)
-    }
-
     pub fn scale_rect(&self, mut rect: Rect) -> Rect {
         if self.scaled {
             let [x1, y1, x2, y2] =
@@ -56,17 +44,6 @@ impl RendererBase<'_> {
         rect
     }
 
-    pub fn scale_rect_f(&self, mut rect: (f32, f32, f32, f32)) -> (f32, f32, f32, f32) {
-        if self.scaled {
-            let x1 = (rect.0 as f64 * self.scalef).round() as _;
-            let y1 = (rect.1 as f64 * self.scalef).round() as _;
-            let x2 = (rect.2 as f64 * self.scalef).round() as _;
-            let y2 = (rect.3 as f64 * self.scalef).round() as _;
-            rect = (x1, y1, x2, y2)
-        }
-        rect
-    }
-
     pub fn fill_scaled_boxes(
         &mut self,
         boxes: &[Rect],
@@ -138,49 +115,6 @@ impl RendererBase<'_> {
         }
     }
 
-    pub fn fill_boxes_f(
-        &mut self,
-        boxes: &[(f32, f32, f32, f32)],
-        color: &Color,
-        cd: &Rc<LinearColorDescription>,
-        render_intent: RenderIntent,
-    ) {
-        self.fill_boxes2_f(boxes, color, cd, render_intent, 0.0, 0.0);
-    }
-
-    pub fn fill_boxes2_f(
-        &mut self,
-        boxes: &[(f32, f32, f32, f32)],
-        color: &Color,
-        cd: &Rc<LinearColorDescription>,
-        render_intent: RenderIntent,
-        dx: f32,
-        dy: f32,
-    ) {
-        if boxes.is_empty() || *color == Color::TRANSPARENT {
-            return;
-        }
-        let (dx, dy) = self.scale_point_f(dx, dy);
-        for bx in boxes {
-            let (x1, y1, x2, y2) = self.scale_rect_f(*bx);
-            self.ops.push(GfxApiOpt::FillRect(FillRect {
-                rect: FramebufferRect::new(
-                    x1 + dx,
-                    y1 + dy,
-                    x2 + dx,
-                    y2 + dy,
-                    self.transform,
-                    self.fb_width,
-                    self.fb_height,
-                ),
-                color: *color,
-                alpha: None,
-                render_intent,
-                cd: cd.clone(),
-            }));
-        }
-    }
-
     pub fn render_texture(
         &mut self,
         texture: &Rc<dyn GfxTexture>,