** ** Copyright 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. */ // This source file is automatically generated #include "jni.h" #include "JNIHelp.h" #include <android_runtime/AndroidRuntime.h> #include <utils/misc.h> #include <assert.h> #include <GLES/gl.h> #include <GLES/glext.h> /* special calls implemented in Android's GLES wrapper used to more * efficiently bound-check passed arrays */ extern "C" { GL_API void GL_APIENTRY glMatrixIndexPointerOESBounds(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr, GLsizei count); GL_API void GL_APIENTRY glWeightPointerOESBounds(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr, GLsizei count); } static int initialized = 0; static jclass nioAccessClass; static jclass bufferClass; static jmethodID getBasePointerID; static jmethodID getBaseArrayID; static jmethodID getBaseArrayOffsetID; static jfieldID positionID; static jfieldID limitID; static jfieldID elementSizeShiftID; /* Cache method IDs each time the class is loaded. */ static void nativeClassInit(JNIEnv *_env, jclass glImplClass) { jclass nioAccessClassLocal = _env->FindClass("java/nio/NIOAccess"); nioAccessClass = (jclass) _env->NewGlobalRef(nioAccessClassLocal); jclass bufferClassLocal = _env->FindClass("java/nio/Buffer"); bufferClass = (jclass) _env->NewGlobalRef(bufferClassLocal); getBasePointerID = _env->GetStaticMethodID(nioAccessClass, "getBasePointer", "(Ljava/nio/Buffer;)J"); getBaseArrayID = _env->GetStaticMethodID(nioAccessClass, "getBaseArray", "(Ljava/nio/Buffer;)Ljava/lang/Object;"); getBaseArrayOffsetID = _env->GetStaticMethodID(nioAccessClass, "getBaseArrayOffset", "(Ljava/nio/Buffer;)I"); positionID = _env->GetFieldID(bufferClass, "position", "I"); limitID = _env->GetFieldID(bufferClass, "limit", "I"); elementSizeShiftID = _env->GetFieldID(bufferClass, "_elementSizeShift", "I"); } static void * getPointer(JNIEnv *_env, jobject buffer, jarray *array, jint *remaining) { jint position; jint limit; jint elementSizeShift; jlong pointer; jint offset; void *data; position = _env->GetIntField(buffer, positionID); limit = _env->GetIntField(buffer, limitID); elementSizeShift = _env->GetIntField(buffer, elementSizeShiftID); *remaining = (limit - position) << elementSizeShift; pointer = _env->CallStaticLongMethod(nioAccessClass, getBasePointerID, buffer); if (pointer != 0L) { *array = NULL; return (void *) (jint) pointer; } *array = (jarray) _env->CallStaticObjectMethod(nioAccessClass, getBaseArrayID, buffer); offset = _env->CallStaticIntMethod(nioAccessClass, getBaseArrayOffsetID, buffer); data = _env->GetPrimitiveArrayCritical(*array, (jboolean *) 0); return (void *) ((char *) data + offset); } static void releasePointer(JNIEnv *_env, jarray array, void *data, jboolean commit) { _env->ReleasePrimitiveArrayCritical(array, data, commit ? 0 : JNI_ABORT); } static void * getDirectBufferPointer(JNIEnv *_env, jobject buffer) { char* buf = (char*) _env->GetDirectBufferAddress(buffer); if (buf) { jint position = _env->GetIntField(buffer, positionID); jint elementSizeShift = _env->GetIntField(buffer, elementSizeShiftID); buf += position << elementSizeShift; } else { jniThrowException(_env, "java/lang/IllegalArgumentException", "Must use a native order direct Buffer"); } return (void*) buf; } // --------------------------------------------------------------------------