As we rely on surface promotion to support wide color content, it is increasingly important that we can understand why a promotable surface was rejected for promotion. At minimum, we need this to go to `gfxDebug`, possibly `gfxWarning`. Eventually we should consider exposing this to we authors through the Developer Console or similar mechanism.
Bug 1898621 Comment 0 Edit History
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As we rely on surface promotion to support wide color content, it is increasingly important that we can understand why a promotable surface was rejected for promotion. At minimum, we need this to go to `gfxDebug`, possibly `gfxWarning`. Eventually we should consider exposing this to web authors through the Developer Console or similar mechanism.