Commit b0626f19 authored by Bob Owen's avatar Bob Owen
Browse files

Bug 1850983: Add check for correct format in DrawTarget::IntoLuminanceSource. r=jrmuizel a=pascalc 

Differential Revision: https://phabricator.services.mozilla.com/D187561
parent a0f0a4b7

gfx/2d/DrawTarget.cpp

+5 −0
Original line number Diff line number Diff line
@@ -189,6 +189,11 @@ void DrawTarget::StrokeGlyphs(ScaledFont* aFont, const GlyphBuffer& aBuffer, 


already_AddRefed<SourceSurface> DrawTarget::IntoLuminanceSource(

    LuminanceType aMaskType, float aOpacity) {

  // The default IntoLuminanceSource implementation needs a format of B8G8R8A8.

  if (mFormat != SurfaceFormat::B8G8R8A8) {

    return nullptr;

  }



  RefPtr<SourceSurface> surface = Snapshot();

  if (!surface) {

    return nullptr;