History log of /frameworks/base/graphics/java/android/graphics/Bitmap.java
Revision Date Author Comments (<<< Hide modified files) (Show modified files >>>)
a78b0a2d9ebb38b86ed802b3d86de07d0b301262 07-Oct-2009 Mike Reed <reed@google.com> add (hidden) setHasAlpha() to allow clients like the view's cache to hint that a bitmap is opaque.

Knowing that a 32bit bitmap is opaque is a performance boost for some blits.
/frameworks/base/graphics/java/android/graphics/Bitmap.java
de0dfb7b65a02d4dd74c271b558adee0973fc267 23-Sep-2009 Dianne Hackborn <hackbod@google.com> Fix issue #2125720 Weather Forecast Widget - graphics do not scale

I forgot to add the new density field to the Bitmaps' parcelable data.

Change-Id: I77cf3e93e356297e0caed6fc71b62b5cd8f79124
/frameworks/base/graphics/java/android/graphics/Bitmap.java
96e240f25a97c10bba863df328ed73a82c34ff61 27-Jul-2009 Dianne Hackborn <hackbod@google.com> Fiddle with default densities to try to sanitize the API.

An issue with the density API is that bitmaps assumed the old default density,
so new programs would have to explicitly set the correct density for every bitmap
they create.

This is an attempt to fix that situation, by define the default density of bitmaps
to be the main screen's density, except for old apps where it is the original default
density.

Actually implementing this is not so great, though, because the Bitmap constructors
can't really know anything about who is calling them to know which density to use.
So at this level the compatibility mode is defined per-process -- meaning the initial
package loaded into a process defines the default bitmap density, and everyone else
loaded in later on has to live with that.

In practice this shouldn't be much of a problem, there shouldn't be much mixing of
old vs. new apps in a process. It does mean that, going forward, if a developer is
going to use shared user IDs for this, they will need to make sure either that all of
their apps are in the same compatibility mode, or that their code explicitly sets the
density of bitmaps it receives. This isn't all that great, but I think it is worth
the benefit of allowing people who write modern apps to not have to deal with bitmap
densities.

This change also does some cleanup of the density management (making sure to always
copy over bitmap densities, etc) and adds java docs to explain the various ways
density is set and used by the system.
/frameworks/base/graphics/java/android/graphics/Bitmap.java
11ea33471e1a14a8594f0b2cd012d86340dd3bd8 23-Jul-2009 Dianne Hackborn <hackbod@google.com> Allow for screen density drawables in compatibility mode.

This change allows us to use drawables that match the current screen
density even when being loaded in compatibility mode. In this case,
the bitmap is loaded in the screen density, and the bitmap and
nine-patch drawables take care of accounting for the density difference.

This should be safe for existing applications, for the most part, since
they shouldn't really be pulling the bitmap out of the drawable. For
the small rare chance of them breaking, it worth getting the correct
graphics. Also this will only happen when there is actually a resource
of the matching density, and no existing apps should have resources for
anything besides the default density (though of course all of the
framework resources will be available in the native density).

As part of this, the bitmap density API has been changed to a single
integer provider the DPI unit density.
/frameworks/base/graphics/java/android/graphics/Bitmap.java
2784ff0af88128f66ae690b73d48fb7e4a211e68 19-Jul-2009 Dianne Hackborn <hackbod@google.com> Fix issue where scaled bitmap sizes could be wrong.

The Bitmap functions to get the scaled width/height couldn't actually
do the right thing because they didn't know the destination they would
be drawing to. Now there are two forms of them, taking an explicit
parameter specifying the destination.
/frameworks/base/graphics/java/android/graphics/Bitmap.java
a53b828635fce8b6b2d3e3377d74d72070056623 17-Jul-2009 Dianne Hackborn <hackbod@google.com> Add "nodpi" density, and expose a bunch of density-related APIs.

Also update the DpiTest app to use nodpi images, and try to have a mode
where it turns off compatibility though it's not quite working.
/frameworks/base/graphics/java/android/graphics/Bitmap.java
8cdcb12752b716d0407733fecefcf1d9e926310a 18-Jun-2009 Wei-Ta Chen <weita@google.com> Add prepareToDraw() to Bitmap for fixing http://b/issue?id=1907995.

The function is used to rebuild any caches associated with the bitmap.
In the case of purgeable bitmaps, this call ensures that the pixels
are decoded for drawing, and therefore prefetching techniques
implemented by callers can be leveraged.
/frameworks/base/graphics/java/android/graphics/Bitmap.java
60b88edea7132ddce90f2dced07c6706f1502270 14-May-2009 Ken Shirriff <kens@google.com> Fix typos.
/frameworks/base/graphics/java/android/graphics/Bitmap.java
9066cfe9886ac131c34d59ed0e2d287b0e3c0087 04-Mar-2009 The Android Open Source Project <initial-contribution@android.com> auto import from //depot/cupcake/@135843
/frameworks/base/graphics/java/android/graphics/Bitmap.java
d83a98f4ce9cfa908f5c54bbd70f03eec07e7553 04-Mar-2009 The Android Open Source Project <initial-contribution@android.com> auto import from //depot/cupcake/@135843
/frameworks/base/graphics/java/android/graphics/Bitmap.java
d24b8183b93e781080b2c16c487e60d51c12da31 11-Feb-2009 The Android Open Source Project <initial-contribution@android.com> auto import from //branches/cupcake/...@130745
/frameworks/base/graphics/java/android/graphics/Bitmap.java
f1e484acb594a726fb57ad0ae4cfe902c7f35858 22-Jan-2009 The Android Open Source Project <initial-contribution@android.com> auto import from //branches/cupcake/...@127436
/frameworks/base/graphics/java/android/graphics/Bitmap.java
54b6cfa9a9e5b861a9930af873580d6dc20f773c 21-Oct-2008 The Android Open Source Project <initial-contribution@android.com> Initial Contribution
/frameworks/base/graphics/java/android/graphics/Bitmap.java