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      1 /*
      2  * Copyright (C) 2009 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_ANDROID_NATIVES_H
     18 #define ANDROID_ANDROID_NATIVES_H
     19 
     20 #include <sys/types.h>
     21 #include <string.h>
     22 
     23 #include <hardware/gralloc.h>
     24 #include <system/window.h>
     25 // FIXME: remove this header, it's for legacy use.  native_window is pulled from frameworks/base/native/include/android/
     26 #include <android/native_window.h>
     27 // ---------------------------------------------------------------------------
     28 
     29 /* FIXME: this is legacy for pixmaps */
     30 typedef struct egl_native_pixmap_t
     31 {
     32     int32_t     version;    /* must be 32 */
     33     int32_t     width;
     34     int32_t     height;
     35     int32_t     stride;
     36     uint8_t*    data;
     37     uint8_t     format;
     38     uint8_t     rfu[3];
     39     union {
     40         uint32_t    compressedFormat;
     41         int32_t     vstride;
     42     };
     43     int32_t     reserved;
     44 } egl_native_pixmap_t;
     45 
     46 /*****************************************************************************/
     47 
     48 #ifdef __cplusplus
     49 
     50 #include <utils/RefBase.h>
     51 
     52 namespace android {
     53 
     54 /*
     55  * This helper class turns an EGL android_native_xxx type into a C++
     56  * reference-counted object; with proper type conversions.
     57  */
     58 template <typename NATIVE_TYPE, typename TYPE, typename REF>
     59 class EGLNativeBase : public NATIVE_TYPE, public REF
     60 {
     61 public:
     62     // Disambiguate between the incStrong in REF and NATIVE_TYPE
     63     void incStrong(const void* id) const {
     64         REF::incStrong(id);
     65     }
     66     void decStrong(const void* id) const {
     67         REF::decStrong(id);
     68     }
     69 
     70 protected:
     71     typedef EGLNativeBase<NATIVE_TYPE, TYPE, REF> BASE;
     72     EGLNativeBase() : NATIVE_TYPE(), REF() {
     73         NATIVE_TYPE::common.incRef = incRef;
     74         NATIVE_TYPE::common.decRef = decRef;
     75     }
     76     static inline TYPE* getSelf(NATIVE_TYPE* self) {
     77         return static_cast<TYPE*>(self);
     78     }
     79     static inline TYPE const* getSelf(NATIVE_TYPE const* self) {
     80         return static_cast<TYPE const *>(self);
     81     }
     82     static inline TYPE* getSelf(android_native_base_t* base) {
     83         return getSelf(reinterpret_cast<NATIVE_TYPE*>(base));
     84     }
     85     static inline TYPE const * getSelf(android_native_base_t const* base) {
     86         return getSelf(reinterpret_cast<NATIVE_TYPE const*>(base));
     87     }
     88     static void incRef(android_native_base_t* base) {
     89         EGLNativeBase* self = getSelf(base);
     90         self->incStrong(self);
     91     }
     92     static void decRef(android_native_base_t* base) {
     93         EGLNativeBase* self = getSelf(base);
     94         self->decStrong(self);
     95     }
     96 };
     97 
     98 } // namespace android
     99 #endif // __cplusplus
    100 
    101 /*****************************************************************************/
    102 
    103 #endif /* ANDROID_ANDROID_NATIVES_H */
    104