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
26  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
27  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  */
29 
30 #ifndef __GL_COMMON_H__
31 #define __GL_COMMON_H__
32 
33 #include <sync/sync.h>
34 #include <utils/debug.h>
35 #include <vector>
36 #include <string>
37 
38 #include "glengine.h"
39 #include "EGLImageWrapper.h"
40 
41 namespace sdm {
42 
43 struct GLRect {
44   float left = 0.0f;
45   float top = 0.0f;
46   float right = 0.0f;
47   float bottom = 0.0f;
48 };
49 
50 struct GLContext {
51   EGLDisplay egl_display = EGL_NO_DISPLAY;
52   EGLContext egl_context = EGL_NO_CONTEXT;
53   EGLSurface egl_surface = EGL_NO_SURFACE;
54   uint32_t program_id = 0;
55 };
56 
57 class GLCommon {
58  public:
59   virtual GLuint LoadProgram(int vertex_entries, const char **vertex, int fragment_entries,
60                              const char **fragment);
61   virtual void DumpShaderLog(int shader);
62   virtual void MakeCurrent(const GLContext *ctx);
63   virtual void SetProgram(uint32_t id);
64   virtual void SetDestinationBuffer(const private_handle_t *dst_hnd);
65   virtual void SetSourceBuffer(const private_handle_t *src_hnd);
66   virtual void DestroyContext(GLContext *ctx);
67   virtual void DeleteProgram(uint32_t id);
68   virtual int WaitOnInputFence(const std::vector<shared_ptr<Fence>> &in_fences);
69   virtual int CreateOutputFence(shared_ptr<Fence> *out_fence);
70   virtual void ClearCache();
71   virtual void SetRealTimePriority();
72   virtual void SetViewport(const GLRect &dst_rect);
73 
74  protected:
~GLCommon()75   virtual ~GLCommon() { }
76 
77  private:
78   EGLImageWrapper image_wrapper_;
79 };
80 
81 }  // namespace sdm
82 
83 #endif  // __GL_COMMON_H__
84