1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_FILTERFW_CORE_VALUE_H 18 #define ANDROID_FILTERFW_CORE_VALUE_H 19 20 #ifdef __cplusplus 21 extern "C" { 22 #endif 23 24 // TODO: As this is no longer part of the proposed NDK, should we make this object-oriented (C++) 25 // instead? We can also probably clean this up a bit. 26 27 // TODO: Change this to an opaque handle? 28 typedef struct { 29 void* value; 30 int type; 31 int count; 32 } Value; 33 34 // TODO: Probably should make these const Value*? 35 int GetIntValue(Value value); 36 float GetFloatValue(Value value); 37 const char* GetStringValue(Value value); 38 const char* GetBufferValue(Value value); 39 char* GetMutableBufferValue(Value value); 40 int* GetIntArrayValue(Value value); 41 float* GetFloatArrayValue(Value value); 42 43 // TODO: Probably should make these const Value*? 44 int ValueIsNull(Value value); 45 int ValueIsInt(Value value); 46 int ValueIsFloat(Value value); 47 int ValueIsString(Value value); 48 int ValueIsBuffer(Value value); 49 int ValueIsMutableBuffer(Value value); 50 int ValueIsIntArray(Value value); 51 int ValueIsFloatArray(Value value); 52 53 Value MakeNullValue(); 54 Value MakeIntValue(int value); 55 Value MakeFloatValue(float value); 56 Value MakeStringValue(const char* value); 57 Value MakeBufferValue(const char* data, int size); 58 Value MakeBufferValueNoCopy(const char* data, int size); 59 Value MakeMutableBufferValue(const char* data, int size); 60 Value MakeMutableBufferValueNoCopy(char* data, int size); 61 Value MakeIntArrayValue(const int* values, int count); 62 Value MakeFloatArrayValue(const float* values, int count); 63 64 // Note: These only alloc if value is Null! Otherwise they overwrite, so data must fit! 65 int SetIntValue(Value* value, int new_value); 66 int SetFloatValue(Value* value, float new_value); 67 int SetStringValue(Value* value, const char* new_value); 68 int SetMutableBufferValue(Value* value, const char* new_data, int size); 69 int SetIntArrayValue(Value* value, const int* new_values, int count); 70 int SetFloatArrayValue(Value* value, const float* new_values, int count); 71 72 int GetValueCount(Value value); 73 74 void ReleaseValue(Value* value); 75 76 #ifdef __cplusplus 77 } // extern "C" 78 #endif 79 80 #endif // ANDROID_FILTERFW_FILTER_VALUE_H 81