text: /*
   * Copyright (C) 2006 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #ifndef ANDROID_SF_ISURFACE_COMPOSER_H
  #define ANDROID_SF_ISURFACE_COMPOSER_H
  
  #include <stdint.h>
  #include <sys/types.h>
  
  #include <utils/RefBase.h>
  #include <utils/Errors.h>
  
  #include <binder/IInterface.h>
  
  #include <ui/PixelFormat.h>
  
  #include <surfaceflinger/ISurfaceFlingerClient.h>
  
  namespace android {
  // ----------------------------------------------------------------------------
  
  class ISurfaceComposer : public IInterface
  {
  public:
      DECLARE_META_INTERFACE(SurfaceComposer);
  
      enum { // (keep in sync with Surface.java)
          eHidden             = 0x00000004,
          eDestroyBackbuffer  = 0x00000020,
          eSecure             = 0x00000080,
          eNonPremultiplied   = 0x00000100,
          ePushBuffers        = 0x00000200,
  
          eFXSurfaceNormal    = 0x00000000,
          eFXSurfaceBlur      = 0x00010000,
          eFXSurfaceDim       = 0x00020000,
          eFXSurfaceMask      = 0x000F0000,
      };
  
      enum {
          ePositionChanged            = 0x00000001,
          eLayerChanged               = 0x00000002,
          eSizeChanged                = 0x00000004,
          eAlphaChanged               = 0x00000008,
          eMatrixChanged              = 0x00000010,
          eTransparentRegionChanged   = 0x00000020,
          eVisibilityChanged          = 0x00000040,
          eFreezeTintChanged          = 0x00000080,
      };
  
      enum {
          eLayerHidden        = 0x01,
          eLayerFrozen        = 0x02,
          eLayerDither        = 0x04,
          eLayerFilter        = 0x08,
          eLayerBlurFreeze    = 0x10
      };
  
      enum {
          eOrientationDefault     = 0,
          eOrientation90          = 1,
          eOrientation180         = 2,
          eOrientation270         = 3,
          eOrientationSwapMask    = 0x01
      };
      
      // flags for setOrientation
      enum {
          eOrientationAnimationDisable = 0x00000001
      };
  
      /* create connection with surface flinger, requires
       * ACCESS_SURFACE_FLINGER permission
       */
  
      virtual sp<ISurfaceFlingerClient> createConnection() = 0;
  
      /* retrieve the control block */
      virtual sp<IMemoryHeap> getCblk() const = 0;
  
      /* open/close transactions. requires ACCESS_SURFACE_FLINGER permission */
      virtual void openGlobalTransaction() = 0;
      virtual void closeGlobalTransaction() = 0;
  
      /* [un]freeze display. requires ACCESS_SURFACE_FLINGER permission */
      virtual status_t freezeDisplay(DisplayID dpy, uint32_t flags) = 0;
      virtual status_t unfreezeDisplay(DisplayID dpy, uint32_t flags) = 0;
  
      /* Set display orientation. requires ACCESS_SURFACE_FLINGER permission */
      virtual int setOrientation(DisplayID dpy, int orientation, uint32_t flags) = 0;
  
      /* signal that we're done booting.
       * Requires ACCESS_SURFACE_FLINGER permission
       */
      virtual void bootFinished() = 0;
  
      /* Signal surfaceflinger that there might be some work to do
       * This is an ASYNCHRONOUS call.
       */
      virtual void signal() const = 0;
  };
  
  // ----------------------------------------------------------------------------
  
  class BnSurfaceComposer : public BnInterface<ISurfaceComposer>
  {
  public:
      enum {
          // Note: BOOT_FINISHED must remain this value, it is called from
          // Java by ActivityManagerService.
          BOOT_FINISHED = IBinder::FIRST_CALL_TRANSACTION,
          CREATE_CONNECTION,
          GET_CBLK,
          OPEN_GLOBAL_TRANSACTION,
          CLOSE_GLOBAL_TRANSACTION,
          SET_ORIENTATION,
          FREEZE_DISPLAY,
          UNFREEZE_DISPLAY,
          SIGNAL
      };
  
      virtual status_t    onTransact( uint32_t code,
                                      const Parcel& data,
                                      Parcel* reply,
                                      uint32_t flags = 0);
  };
  
  // ----------------------------------------------------------------------------
  
  }; // namespace android
  
  #endif // ANDROID_SF_ISURFACE_COMPOSER_H
  