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author | Jez Ng <me@jezng.com> | 2013-07-10 15:38:26 -0700 |
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committer | Jez Ng <me@jezng.com> | 2013-07-10 15:38:26 -0700 |
commit | d0bd6cc8c29492a3be79c02239bb09e644f674f6 (patch) | |
tree | aec501fc19fbd532227ed2a8375918b62bcac68c /src/library_sdl.js | |
parent | 827d8314b1ecab7e2ea5d171521c505928c55202 (diff) |
Add comment.
Diffstat (limited to 'src/library_sdl.js')
-rw-r--r-- | src/library_sdl.js | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/library_sdl.js b/src/library_sdl.js index de644aac..646aa54c 100644 --- a/src/library_sdl.js +++ b/src/library_sdl.js @@ -1066,6 +1066,9 @@ var LibrarySDL = { }, SDL_SetColorKey: function(surf, flag, key) { + // SetColorKey assigns one color to be rendered as transparent. I don't + // think the canvas API allows for anything like this, and iterating through + // each pixel to replace that color seems prohibitively expensive. Runtime.warnOnce('SDL_SetColorKey is a no-op for performance reasons'); return 0; }, |