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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 #ifndef __COMMON_HOST_CONNECTION_H
     17 #define __COMMON_HOST_CONNECTION_H
     18 
     19 #include "IOStream.h"
     20 #include "renderControl_enc.h"
     21 #include "ChecksumCalculator.h"
     22 
     23 class GLEncoder;
     24 class gl_client_context_t;
     25 class GL2Encoder;
     26 class gl2_client_context_t;
     27 
     28 class HostConnection
     29 {
     30 public:
     31     static HostConnection *get();
     32     ~HostConnection();
     33 
     34     GLEncoder *glEncoder();
     35     GL2Encoder *gl2Encoder();
     36     renderControl_encoder_context_t *rcEncoder();
     37     ChecksumCalculator *checksumHelper() { return &m_checksumHelper; }
     38 
     39     void flush() {
     40         if (m_stream) {
     41             m_stream->flush();
     42         }
     43     }
     44 
     45 private:
     46     HostConnection();
     47     static gl_client_context_t  *s_getGLContext();
     48     static gl2_client_context_t *s_getGL2Context();
     49     // setProtocol initilizes GL communication protocol for checksums
     50     // should be called when m_rcEnc is created
     51     void setChecksumHelper(renderControl_encoder_context_t *rcEnc);
     52 
     53 private:
     54     IOStream *m_stream;
     55     GLEncoder   *m_glEnc;
     56     GL2Encoder  *m_gl2Enc;
     57     renderControl_encoder_context_t *m_rcEnc;
     58     ChecksumCalculator m_checksumHelper;
     59 };
     60 
     61 #endif
     62