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Don't leave gralloc-only host connections hanging.
[android-x86/device-generic-goldfish-opengl.git] / system / OpenglSystemCommon / HostConnection.h
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 #include <string>
24
25 class GLEncoder;
26 class gl_client_context_t;
27 class GL2Encoder;
28 class gl2_client_context_t;
29
30 class HostConnection
31 {
32 public:
33     static HostConnection *get();
34     static void exit();
35     ~HostConnection();
36
37     GLEncoder *glEncoder();
38     GL2Encoder *gl2Encoder();
39     renderControl_encoder_context_t *rcEncoder();
40     ChecksumCalculator *checksumHelper() { return &m_checksumHelper; }
41
42     void flush() {
43         if (m_stream) {
44             m_stream->flush();
45         }
46     }
47
48     void setGrallocOnly(bool gralloc_only) {
49         m_grallocOnly = gralloc_only;
50     }
51
52     bool isGrallocOnly() const { return m_grallocOnly; }
53
54 private:
55     HostConnection();
56     static gl_client_context_t  *s_getGLContext();
57     static gl2_client_context_t *s_getGL2Context();
58
59     std::string queryGLExtensions(renderControl_encoder_context_t *rcEnc);
60     // setProtocol initilizes GL communication protocol for checksums
61     // should be called when m_rcEnc is created
62     void setChecksumHelper(renderControl_encoder_context_t *rcEnc);
63
64 private:
65     IOStream *m_stream;
66     GLEncoder   *m_glEnc;
67     GL2Encoder  *m_gl2Enc;
68     renderControl_encoder_context_t *m_rcEnc;
69     ChecksumCalculator m_checksumHelper;
70     bool m_grallocOnly;
71 };
72
73 #endif