Adds bindings for jnigraphics

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@2170 8e941d3f-bd1b-0410-a28a-d453659cc2b4
2011-11-27 21:00:59 +00:00 · 2011-11-27 21:00:59 +00:00 · 311601ba92
commit 311601ba92
parent 706b8f1058
1 changed files with 88 additions and 0 deletions
--- a/bindings/android-ndk/bitmap.pas
+++ b/bindings/android-ndk/bitmap.pas
@ -0,0 +1,88 @@
+{*
+ * 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>}
+
+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.
+