1 files changed, 18 insertions, 3 deletions
diff --git a/gfx/wr/webrender/src/pattern.rs b/gfx/wr/webrender/src/pattern.rs
index 36a06fa2b9..f4ddd51f9f 100644
--- a/gfx/wr/webrender/src/pattern.rs
+++ b/gfx/wr/webrender/src/pattern.rs
@@ -10,12 +10,14 @@ use api::{ColorF, PremultipliedColorF};
 #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 pub enum PatternKind {
     ColorOrTexture = 0,
+    RadialGradient = 1,
+    ConicGradient = 2,
 
-    Mask = 1,
+    Mask = 3,
     // When adding patterns, don't forget to update the NUM_PATTERNS constant.
 }
 
-pub const NUM_PATTERNS: u32 = 2;
+pub const NUM_PATTERNS: u32 = 4;
 
 impl PatternKind {
     pub fn from_u32(val: u32) -> Self {
@@ -61,8 +63,21 @@ impl Pattern {
         Pattern {
             kind: PatternKind::ColorOrTexture,
             shader_input: PatternShaderInput::default(),
-            base_color: PremultipliedColorF::BLACK,
+            base_color: PremultipliedColorF::WHITE,
             is_opaque: false,
         }
     }
+
+    pub fn supports_segmented_rendering(&self) -> bool {
+        match self.kind {
+            PatternKind::ColorOrTexture | PatternKind::Mask => {
+                true
+            }
+            PatternKind::RadialGradient | PatternKind::ConicGradient => {
+                // TODO: We need to fix up the layout coords mismatch in pattern
+                //       and quad rendering to allow these to be segmented.
+                false
+            }
+        }
+    }
 }