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      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_SURFACE_TEXTURE_LAYER_H
     18 #define ANDROID_SURFACE_TEXTURE_LAYER_H
     19 
     20 #include <stdlib.h>
     21 #include <stdint.h>
     22 #include <sys/types.h>
     23 
     24 #include <utils/Errors.h>
     25 #include <gui/SurfaceTexture.h>
     26 
     27 namespace android {
     28 // ---------------------------------------------------------------------------
     29 
     30 class Layer;
     31 
     32 class SurfaceTextureLayer : public SurfaceTexture
     33 {
     34     wp<Layer> mLayer;
     35     uint32_t mDefaultFormat;
     36 
     37 public:
     38     SurfaceTextureLayer(GLuint tex, const sp<Layer>& layer);
     39     ~SurfaceTextureLayer();
     40 
     41     status_t setDefaultBufferSize(uint32_t w, uint32_t h);
     42     status_t setDefaultBufferFormat(uint32_t format);
     43 
     44 public:
     45     virtual status_t setBufferCount(int bufferCount);
     46 
     47 protected:
     48     virtual status_t queueBuffer(int buf, int64_t timestamp,
     49             uint32_t* outWidth, uint32_t* outHeight, uint32_t* outTransform);
     50 
     51     virtual status_t dequeueBuffer(int *buf, uint32_t w, uint32_t h,
     52             uint32_t format, uint32_t usage);
     53 
     54     virtual status_t connect(int api,
     55             uint32_t* outWidth, uint32_t* outHeight, uint32_t* outTransform);
     56 };
     57 
     58 // ---------------------------------------------------------------------------
     59 }; // namespace android
     60 
     61 #endif // ANDROID_SURFACE_TEXTURE_LAYER_H
     62