hybris/egl/platforms/fbdev/fbdev_window.h

   1 /*
   2  * Copyright (C) 2013 libhybris
   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 FBDEV_WINDOW_H
  18 #define FBDEV_WINDOW_H
  19
  20 #include "nativewindowbase.h"
  21 #include <linux/fb.h>
  22 #include <android/hardware/gralloc.h>
  23
  24 #include <list>
  25
  26
  27 class FbDevNativeWindowBuffer : public BaseNativeWindowBuffer {
  28 friend class FbDevNativeWindow;
  29
  30 protected:
  31     FbDevNativeWindowBuffer(alloc_device_t* alloc,
  32                             unsigned int width,
  33                             unsigned int height,
  34                             unsigned int format,
  35                             unsigned int usage) ;
  36    virtual ~FbDevNativeWindowBuffer() ;
  37
  38 protected:
  39     int busy;
  40     int status;
  41     alloc_device_t* m_alloc;
  42 };
  43
  44
  45 class FbDevNativeWindow : public BaseNativeWindow {
  46 public:
  47     FbDevNativeWindow(gralloc_module_t* gralloc, alloc_device_t* alloc,
  48          framebuffer_device_t* fbDev);
  49     ~FbDevNativeWindow();
  50
  51 protected:
  52     // overloads from BaseNativeWindow
  53     virtual int setSwapInterval(int interval);
  54
  55     virtual int dequeueBuffer(BaseNativeWindowBuffer** buffer, int* fenceFd);
  56     virtual int queueBuffer(BaseNativeWindowBuffer* buffer, int fenceFd);
  57     virtual int cancelBuffer(BaseNativeWindowBuffer* buffer, int fenceFd);
  58     virtual int lockBuffer(BaseNativeWindowBuffer* buffer);
  59
  60     virtual unsigned int type() const;
  61     virtual unsigned int width() const;
  62     virtual unsigned int height() const;
  63     virtual unsigned int format() const;
  64     virtual unsigned int defaultWidth() const;
  65     virtual unsigned int defaultHeight() const;
  66     virtual unsigned int queueLength() const;
  67     virtual unsigned int transformHint() const;
  68     // perform calls
  69     virtual int setUsage(int usage);
  70     virtual int setBuffersFormat(int format);
  71     virtual int setBuffersDimensions(int width, int height);
  72     virtual int setBufferCount(int cnt);
  73
  74 private:
  75     void destroyBuffers();
  76
  77 private:
  78     framebuffer_device_t* m_fbDev;
  79     alloc_device_t* m_alloc;
  80     unsigned int m_usage;
  81     unsigned int m_bufFormat;
  82     int m_freeBufs;
  83     std::list<FbDevNativeWindowBuffer*> m_bufList;
  84     FbDevNativeWindowBuffer* m_frontBuf;
  85 };
  86
  87 #endif
  88 // vim: noai:ts=4:sw=4:ss=4:expandtab