And as I said, decodeByteArray is for compressed images, such as PNG
and JPG. It does not work with uncompressed byte buffers that are in
R8G8B8A8 or R5G6B5 formats. What is needed are the lockPixels and
unlockPixels methods on a mutable Bitmap.
On Dec 2, 1:15 am, Christine [EMAIL PROTECTED]
Also, the Bitmap class internally (in the C++ JNI atleast) supports
the all familiar lockPixels and unlockPixels methods, which allows
direct access to the byte buffer. I would suggest extending the Java
API to include those methods.
On Dec 2, 1:00 am, Koush [EMAIL PROTECTED] wrote:
Dianne
{ SkImageDecoder_GIF_Factory, SkImageDecoder::kGIF_Format },
{ SkImageDecoder_PNG_Factory, SkImageDecoder::kPNG_Format },
{ SkImageDecoder_ICO_Factory, SkImageDecoder::kICO_Format },
{ SkImageDecoder_WBMP_Factory, SkImageDecoder::kWBMP_Format },
{
As John says, why don't you use BitmapFactory.decodeByteArray?
On Dec 2, 10:03 am, Koush [EMAIL PROTECTED] wrote:
Also, the Bitmap class internally (in the C++ JNI atleast) supports
the all familiar lockPixels and unlockPixels methods, which allows
direct access to the byte buffer. I would
Dianne Hackborn: I am asking this in the context of how to create a
screenshot application. Taking screenshots is not possible on the G1
anyways, because reading from /dev/graphics/fb0 is only available to
root and shell and not available to actual applications. Thus is only
works on hacked
The only ways to specify the pixels directly are via:
- consing up a BMP in memory
- using setPixels(...) api (which takes 32bit ARGB ints)
I apologize there there is no direct API that takes 565 values as input.
On Dec 2, 2008, at 4:41 AM, Koush wrote:
{ SkImageDecoder_GIF_Factory,
If that's the case, then this discussion shouldn't be on android-developers,
which is for developing with the SDK. Let's move it to one of the open
source platform groups.
On Tue, Dec 2, 2008 at 1:00 AM, Koush [EMAIL PROTECTED] wrote:
Dianne Hackborn: I am asking this in the context of how to
I inspected Bitmap.cpp and found this function:
static jboolean Bitmap_writeToParcel(JNIEnv* env, jobject,
const SkBitmap* bitmap,
jboolean isMutable, jobject
parcel) {
if (parcel == NULL) {
SkDebugf(---
DO NOT DO THIS. This marshalling format is private to the system and class,
and can change arbitrarily across releases.
On Mon, Dec 1, 2008 at 2:58 PM, Koush [EMAIL PROTECTED] wrote:
I inspected Bitmap.cpp and found this function:
static jboolean Bitmap_writeToParcel(JNIEnv* env, jobject,
BitmapFactory.decodeByteArray ?
http://code.google.com/android/reference/android/graphics/BitmapFactory.html
On Dec 1, 5:58 pm, Koush [EMAIL PROTECTED] wrote:
I inspected Bitmap.cpp and found this function:
static jboolean Bitmap_writeToParcel(JNIEnv* env, jobject,
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