311601ba92
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@2170 8e941d3f-bd1b-0410-a28a-d453659cc2b4
89 lines
2.6 KiB
ObjectPascal
89 lines
2.6 KiB
ObjectPascal
{*
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* Copyright (C) 2009 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*}
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unit bitmap;
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{$mode delphi}
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{$packrecords c}
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interface
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uses
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ctypes, jni;
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{#include <stdint.h>
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#include <jni.h>}
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const
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libname='libjnigraphics.so';
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ANDROID_BITMAP_RESUT_SUCCESS = 0;
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ANDROID_BITMAP_RESULT_BAD_PARAMETER =-1;
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ANDROID_BITMAP_RESULT_JNI_EXCEPTION =-2;
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ANDROID_BITMAP_RESULT_ALLOCATION_FAILED =-3;
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type
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AndroidBitmapFormat = (
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ANDROID_BITMAP_FORMAT_NONE = 0,
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ANDROID_BITMAP_FORMAT_RGBA_8888 = 1,
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ANDROID_BITMAP_FORMAT_RGB_565 = 4,
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ANDROID_BITMAP_FORMAT_RGBA_4444 = 7,
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ANDROID_BITMAP_FORMAT_A_8 = 8
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);
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AndroidBitmapInfo = record
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width: Cardinal;//uint32_t;
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height: Cardinal;//uint32_t
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stride: Cardinal;//uint32_t
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format: Integer;//int32_t
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flags: Cardinal;//uint32_t // 0 for now
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end;
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PAndroidBitmapInfo = ^AndroidBitmapInfo;
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{**
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* Given a java bitmap object, fill out the AndroidBitmap struct for it.
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* If the call fails, the info parameter will be ignored
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*}
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function AndroidBitmap_getInfo(env: PJNIEnv;
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jbitmap: jobject; info: PAndroidBitmapInfo): cint;
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cdecl; external libname name 'AndroidBitmap_getInfo';
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{**
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* Given a java bitmap object, attempt to lock the pixel address.
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* Locking will ensure that the memory for the pixels will not move
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* until the unlockPixels call, and ensure that, if the pixels had been
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* previously purged, they will have been restored.
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*
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* If this call succeeds, it must be balanced by a call to
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* AndroidBitmap_unlockPixels, after which time the address of the pixels should
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* no longer be used.
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*
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* If this succeeds, *addrPtr will be set to the pixel address. If the call
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* fails, addrPtr will be ignored.
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*}
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function AndroidBitmap_lockPixels(env: PJNIEnv; jbitmap: jobject;
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addrPtr: PPointer {void**}): cint; cdecl; external libname name 'AndroidBitmap_lockPixels';
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{**
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* Call this to balanace a successful call to AndroidBitmap_lockPixels
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*}
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function AndroidBitmap_unlockPixels(env: PJNIEnv;
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jbitmap: jobject): cint; cdecl; external libname name 'AndroidBitmap_unlockPixels';
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implementation
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end.
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