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{*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*}
unit bitmap;
{$mode delphi}
{$packrecords c}
interface
uses
ctypes, jni;
{#include <stdint.h>
#include <jni.h>}
{$linklib jnigraphics}
const
libname='libjnigraphics.so';
ANDROID_BITMAP_RESUT_SUCCESS = 0;
ANDROID_BITMAP_RESULT_BAD_PARAMETER =-1;
ANDROID_BITMAP_RESULT_JNI_EXCEPTION =-2;
ANDROID_BITMAP_RESULT_ALLOCATION_FAILED =-3;
type
AndroidBitmapFormat = (
ANDROID_BITMAP_FORMAT_NONE = 0,
ANDROID_BITMAP_FORMAT_RGBA_8888 = 1,
ANDROID_BITMAP_FORMAT_RGB_565 = 4,
ANDROID_BITMAP_FORMAT_RGBA_4444 = 7,
ANDROID_BITMAP_FORMAT_A_8 = 8
);
AndroidBitmapInfo = record
width: Cardinal;//uint32_t;
height: Cardinal;//uint32_t
stride: Cardinal;//uint32_t
format: Integer;//int32_t
flags: Cardinal;//uint32_t // 0 for now
end;
PAndroidBitmapInfo = ^AndroidBitmapInfo;
{**
* Given a java bitmap object, fill out the AndroidBitmap struct for it.
* If the call fails, the info parameter will be ignored
*}
function AndroidBitmap_getInfo(env: PJNIEnv;
jbitmap: jobject; info: PAndroidBitmapInfo): cint;
cdecl; external libname name 'AndroidBitmap_getInfo';
{**
* Given a java bitmap object, attempt to lock the pixel address.
* Locking will ensure that the memory for the pixels will not move
* until the unlockPixels call, and ensure that, if the pixels had been
* previously purged, they will have been restored.
*
* If this call succeeds, it must be balanced by a call to
* AndroidBitmap_unlockPixels, after which time the address of the pixels should
* no longer be used.
*
* If this succeeds, *addrPtr will be set to the pixel address. If the call
* fails, addrPtr will be ignored.
*}
function AndroidBitmap_lockPixels(env: PJNIEnv; jbitmap: jobject;
addrPtr: PPointer {void**}): cint; cdecl; external libname name 'AndroidBitmap_lockPixels';
{**
* Call this to balanace a successful call to AndroidBitmap_lockPixels
*}
function AndroidBitmap_unlockPixels(env: PJNIEnv;
jbitmap: jobject): cint; cdecl; external libname name 'AndroidBitmap_unlockPixels';
implementation
end.
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