Index: cc/layers/render_surface_impl.cc |
diff --git a/cc/layers/render_surface_impl.cc b/cc/layers/render_surface_impl.cc |
index fc05a4e6dee59052179b009ea85efe6d4a4cf1f5..3243dbeac2c9a62003e69dc6d110b2711b685b7f 100644 |
--- a/cc/layers/render_surface_impl.cc |
+++ b/cc/layers/render_surface_impl.cc |
@@ -416,15 +416,18 @@ void RenderSurfaceImpl::AppendQuads(RenderPass* render_pass, |
TileMaskLayer(render_pass, shared_quad_state, visible_layer_rect); |
return; |
} |
- mask_layer->GetContentsResourceId(&mask_resource_id, &mask_texture_size); |
+ gfx::SizeF mask_uv_size; |
+ mask_layer->GetContentsResourceId(&mask_resource_id, &mask_texture_size, |
+ &mask_uv_size); |
gfx::SizeF unclipped_mask_target_size = gfx::ScaleSize( |
gfx::SizeF(OwningEffectNode()->unscaled_mask_target_size), |
surface_contents_scale.x(), surface_contents_scale.y()); |
- // Convert content_rect from target space to normalized space. |
- // Where unclipped_mask_target_size maps to gfx::Size(1, 1). |
- mask_uv_rect = gfx::ScaleRect(gfx::RectF(content_rect()), |
- 1.0f / unclipped_mask_target_size.width(), |
- 1.0f / unclipped_mask_target_size.height()); |
+ // Convert content_rect from target space to normalized mask UV space. |
+ // Where |unclipped_mask_target_size| maps to |mask_uv_size|. |
+ mask_uv_rect = gfx::ScaleRect( |
+ gfx::RectF(content_rect()), |
+ mask_uv_size.width() / unclipped_mask_target_size.width(), |
+ mask_uv_size.height() / unclipped_mask_target_size.height()); |
} |
gfx::RectF tex_coord_rect(gfx::Rect(content_rect().size())); |