1 /*
2  * Copyright (c) 2019-2020, The Linux Foundation. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are
6  * met:
7     * Redistributions of source code must retain the above copyright
8       notice, this list of conditions and the following disclaimer.
9     * Redistributions in binary form must reproduce the above
10       copyright notice, this list of conditions and the following
11       disclaimer in the documentation and/or other materials provided
12       with the distribution.
13     * Neither the name of The Linux Foundation nor the names of its
14       contributors may be used to endorse or promote products derived
15       from this software without specific prior written permission.
16 
17  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
18  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
24  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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27  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  */
29 
30 #ifndef __GL_LAYER_STITCH_IMPL_H__
31 #define __GL_LAYER_STITCH_IMPL_H__
32 
33 #include <sync/sync.h>
34 
35 #include <vector>
36 
37 #include "gl_layer_stitch.h"
38 #include "gl_common.h"
39 
40 namespace sdm {
41 
42 class GLLayerStitchImpl : public GLLayerStitch, public GLCommon {
43  public:
44   explicit GLLayerStitchImpl(bool secure);
45   virtual ~GLLayerStitchImpl();
46   virtual int Blit(const std::vector<StitchParams> &stitch_params, shared_ptr<Fence> *release_fence);
47   virtual int CreateContext(bool secure);
48   virtual int Init();
49   virtual int Deinit();
50  private:
51   bool secure_ = false;
52   GLContext ctx_;
53 
54   void InitContext();
55   void ClearWithTransparency(const GLRect &scissor_rect);
56   int NeedsGLScissor(const std::vector<StitchParams> &stitch_params);
57 };
58 
59 }  // namespace sdm
60 
61 #endif  // __GL_LAYER_STITCH_IMPL_H__
62