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cogl-bitmap: Update the format after (un)premultiplying

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The pixel format of the bitmap needs to have its premult flag cleared
or set after the premult conversion otherwise it may get converted
again.
This commit is contained in:
Neil Roberts 2010-02-06 00:12:10 +00:00
parent 45215cb426
commit b9a9bf60b7
2 changed files with 5 additions and 2 deletions
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4
cogl/cogl-bitmap-fallback.c
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@ -379,6 +379,8 @@ _cogl_bitmap_fallback_unpremult (CoglBitmap *bmp)
} }
} }
bmp->format &= ~COGL_PREMULT_BIT;
return TRUE; return TRUE;
} }
@ -414,6 +416,8 @@ _cogl_bitmap_fallback_premult (CoglBitmap *bmp)
} }
} }
bmp->format |= COGL_PREMULT_BIT;
return TRUE; return TRUE;
} }

3
cogl/cogl-texture.c
View File

@ -415,8 +415,7 @@ cogl_texture_new_from_file (const gchar *filename,
internal_format = _cogl_texture_determine_internal_format (bmp->format, internal_format = _cogl_texture_determine_internal_format (bmp->format,
internal_format); internal_format);
if (!_cogl_texture_needs_premult_conversion (bmp->format, internal_format) || if (!_cogl_texture_needs_premult_conversion (bmp->format, internal_format) ||
_cogl_bitmap_convert_premult_status (bmp, _cogl_bitmap_convert_premult_status (bmp, bmp->format ^ COGL_PREMULT_BIT))
bmp->format ^= COGL_PREMULT_BIT))
handle = cogl_texture_new_from_bitmap (bmp, flags, internal_format); handle = cogl_texture_new_from_bitmap (bmp, flags, internal_format);
cogl_handle_unref (bmp); cogl_handle_unref (bmp);