hybris/egl/platforms/common/nativewindowbase.h

   1 #ifndef NATIVEWINDOWBASE_H
   2 #define NATIVEWINDOWBASE_H
   3
   4 /* for ICS window.h */
   5 #include <string.h>
   6 #include <android/system/window.h>
   7 #include <EGL/egl.h>
   8 #include "support.h"
   9 #include <stdarg.h>
  10 #include <assert.h>
  11
  12 #ifdef DEBUG
  13 #include <stdio.h>
  14 #endif
  15
  16 #define NO_ERROR                0L
  17 #define BAD_VALUE               -1
  18
  19 /**
  20  * @brief A Class to do common ANativeBuffer initialization and thunk c-style
  21  *        callbacks into C++ method calls.
  22  **/
  23 class BaseNativeWindowBuffer : public ANativeWindowBuffer
  24 {
  25 protected:
  26         BaseNativeWindowBuffer();
  27         virtual ~BaseNativeWindowBuffer() ;
  28
  29 public:
  30         /* When passing the buffer to EGL functions it's required to pass always the native
  31          * buffer. This method takes care about proper casting. */
  32         ANativeWindowBuffer* getNativeBuffer() const;
  33
  34 private:
  35         unsigned int refcount;
  36         static void _decRef(struct android_native_base_t* base);
  37         static void _incRef(struct android_native_base_t* base);
  38 };
  39
  40 /**
  41  * @brief A Class to do common ANativeWindow initialization and thunk c-style
  42  *        callbacks into C++ method calls.
  43  **/
  44 class BaseNativeWindow : public ANativeWindow
  45 {
  46 public:
  47         operator EGLNativeWindowType()
  48         {
  49                 EGLNativeWindowType ret = reinterpret_cast<EGLNativeWindowType>(static_cast<ANativeWindow *>(this));
  50                 return ret;
  51         }
  52
  53 protected:
  54         BaseNativeWindow();
  55         virtual ~BaseNativeWindow();
  56
  57         // does this require more magic?
  58         unsigned int refcount;
  59         static void _decRef(struct android_native_base_t* base);
  60         static void _incRef(struct android_native_base_t* base);
  61
  62         // these have to be implemented in the concrete implementation, eg. FBDEV or offscreen window
  63         virtual int setSwapInterval(int interval) = 0;
  64
  65         virtual int dequeueBuffer(BaseNativeWindowBuffer **buffer, int *fenceFd) = 0;
  66         virtual int queueBuffer(BaseNativeWindowBuffer *buffer, int fenceFd) = 0;
  67         virtual int cancelBuffer(BaseNativeWindowBuffer *buffer, int fenceFd) = 0;
  68         virtual int lockBuffer(BaseNativeWindowBuffer *buffer) = 0; // DEPRECATED
  69
  70         virtual unsigned int type() const = 0;
  71         virtual unsigned int width() const = 0;
  72         virtual unsigned int height() const = 0;
  73         virtual unsigned int format() const = 0;
  74         virtual unsigned int defaultWidth() const = 0;
  75         virtual unsigned int defaultHeight() const = 0;
  76         virtual unsigned int queueLength() const = 0;
  77         virtual unsigned int transformHint() const = 0;
  78         //perform interfaces
  79         virtual int setBuffersFormat(int format) = 0;
  80         virtual int setBuffersDimensions(int width, int height) = 0;
  81         virtual int setUsage(int usage) = 0;
  82         virtual int setBufferCount(int cnt) = 0;
  83 private:
  84         static int _setSwapInterval(struct ANativeWindow* window, int interval);
  85         static int _dequeueBuffer_DEPRECATED(ANativeWindow* window, ANativeWindowBuffer** buffer);
  86         static const char *_native_window_operation(int what);
  87         static const char *_native_query_operation(int what);
  88         static int _lockBuffer_DEPRECATED(struct ANativeWindow* window, ANativeWindowBuffer* buffer);
  89         static int _queueBuffer_DEPRECATED(struct ANativeWindow* window, ANativeWindowBuffer* buffer);
  90         static int _query(const struct ANativeWindow* window, int what, int* value);
  91         static int _perform(struct ANativeWindow* window, int operation, ... );
  92         static int _cancelBuffer_DEPRECATED(struct ANativeWindow* window, ANativeWindowBuffer* buffer);
  93         static int _queueBuffer(struct ANativeWindow *window, ANativeWindowBuffer *buffer, int fenceFd);
  94         static int _dequeueBuffer(struct ANativeWindow *window, ANativeWindowBuffer **buffer, int *fenceFd);
  95         static int _cancelBuffer(struct ANativeWindow *window, ANativeWindowBuffer *buffer, int fenceFd);
  96 };
  97
  98 #endif