gecko-dev/dom/camera/CameraCommon.h

/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
/* vim: set ts=2 et sw=2 tw=40: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef DOM_CAMERA_CAMERACOMMON_H
#define DOM_CAMERA_CAMERACOMMON_H

#ifndef __func__
#ifdef __FUNCTION__
#define __func__ __FUNCTION__
#else
#define __func__ __FILE__
#endif
#endif

#ifndef NAN
#define NAN std::numeric_limits<double>::quiet_NaN()
#endif

#include "nsThreadUtils.h"
#include "nsIDOMCameraManager.h"
#include "prlog.h"

#ifdef PR_LOGGING
extern PRLogModuleInfo* gCameraLog;
#define DOM_CAMERA_LOG( type, ... ) PR_LOG(gCameraLog, (PRLogModuleLevel)type, ( __VA_ARGS__ ))
#else
#define DOM_CAMERA_LOG( type, ... )
#endif

#define DOM_CAMERA_LOGA( ... )      DOM_CAMERA_LOG( 0, __VA_ARGS__ )

/**
 * From the least to the most output.
 */
enum {
  DOM_CAMERA_LOG_NOTHING,
  DOM_CAMERA_LOG_ERROR,
  DOM_CAMERA_LOG_WARNING,
  DOM_CAMERA_LOG_INFO,
  DOM_CAMERA_LOG_TRACE,
  DOM_CAMERA_LOG_REFERENCES
};

/**
 * DOM_CAMERA_LOGR() can be called before 'gCameraLog' is set, so
 * we need to handle this one a little differently.
 */
#ifdef PR_LOGGING
#define DOM_CAMERA_LOGR( ... )                                  \
  do {                                                          \
    if (gCameraLog) {                                           \
      DOM_CAMERA_LOG( DOM_CAMERA_LOG_REFERENCES, __VA_ARGS__ ); \
    }                                                           \
  } while (0)
#else
#define DOM_CAMERA_LOGR( ... )
#endif
#define DOM_CAMERA_LOGT( ... )      DOM_CAMERA_LOG( DOM_CAMERA_LOG_TRACE, __VA_ARGS__ )
#define DOM_CAMERA_LOGI( ... )      DOM_CAMERA_LOG( DOM_CAMERA_LOG_INFO, __VA_ARGS__ )
#define DOM_CAMERA_LOGW( ... )      DOM_CAMERA_LOG( DOM_CAMERA_LOG_WARNING, __VA_ARGS__ )
#define DOM_CAMERA_LOGE( ... )      DOM_CAMERA_LOG( DOM_CAMERA_LOG_ERROR, __VA_ARGS__ )

enum {
  CAMERA_PARAM_EFFECT,
  CAMERA_PARAM_WHITEBALANCE,
  CAMERA_PARAM_SCENEMODE,
  CAMERA_PARAM_FLASHMODE,
  CAMERA_PARAM_FOCUSMODE,
  CAMERA_PARAM_ZOOM,
  CAMERA_PARAM_METERINGAREAS,
  CAMERA_PARAM_FOCUSAREAS,
  CAMERA_PARAM_FOCALLENGTH,
  CAMERA_PARAM_FOCUSDISTANCENEAR,
  CAMERA_PARAM_FOCUSDISTANCEOPTIMUM,
  CAMERA_PARAM_FOCUSDISTANCEFAR,
  CAMERA_PARAM_EXPOSURECOMPENSATION,

  CAMERA_PARAM_SUPPORTED_PREVIEWSIZES,
  CAMERA_PARAM_SUPPORTED_VIDEOSIZES,
  CAMERA_PARAM_SUPPORTED_PICTURESIZES,
  CAMERA_PARAM_SUPPORTED_PICTUREFORMATS,
  CAMERA_PARAM_SUPPORTED_WHITEBALANCES,
  CAMERA_PARAM_SUPPORTED_SCENEMODES,
  CAMERA_PARAM_SUPPORTED_EFFECTS,
  CAMERA_PARAM_SUPPORTED_FLASHMODES,
  CAMERA_PARAM_SUPPORTED_FOCUSMODES,
  CAMERA_PARAM_SUPPORTED_MAXFOCUSAREAS,
  CAMERA_PARAM_SUPPORTED_MAXMETERINGAREAS,
  CAMERA_PARAM_SUPPORTED_MINEXPOSURECOMPENSATION,
  CAMERA_PARAM_SUPPORTED_MAXEXPOSURECOMPENSATION,
  CAMERA_PARAM_SUPPORTED_EXPOSURECOMPENSATIONSTEP,
  CAMERA_PARAM_SUPPORTED_ZOOM,
  CAMERA_PARAM_SUPPORTED_ZOOMRATIOS
};

class CameraErrorResult : public nsRunnable
{
public:
  CameraErrorResult(nsICameraErrorCallback* onError, const nsString& aErrorMsg)
    : mOnErrorCb(onError)
    , mErrorMsg(aErrorMsg)
  { }

  NS_IMETHOD Run()
  {
    MOZ_ASSERT(NS_IsMainThread());

    if (mOnErrorCb) {
      mOnErrorCb->HandleEvent(mErrorMsg);
    }
    return NS_OK;
  }

protected:
  nsCOMPtr<nsICameraErrorCallback> mOnErrorCb;
  const nsString mErrorMsg;
};

#ifdef PR_LOGGING

static inline void nsLogAddRefCamera(const char *file, uint32_t line, void* p, uint32_t count, const char *clazz, uint32_t size)
{
  if (count == 1) {
    DOM_CAMERA_LOGR("++++++++++++++++++++++++++++++++++++++++");
  }
  DOM_CAMERA_LOGR("%s:%d : CAMREF-ADD(%s): this=%p, mRefCnt=%d\n", file, line, clazz, p, count);
}

static inline void nsLogReleaseCamera(const char *file, uint32_t line, void* p, uint32_t count, const char *clazz, bool abortOnDelete)
{
  DOM_CAMERA_LOGR("%s:%d : CAMREF-REL(%s): this=%p, mRefCnt=%d\n", file, line, clazz, p, count);
  if (count == 0) {
    if (!abortOnDelete) {
      DOM_CAMERA_LOGR("----------------------------------------");
    } else {
      DOM_CAMERA_LOGR("---------- ABORTING ON DELETE ----------");
      *((uint32_t *)0xdeadbeef) = 0x266230;
    }
  }
}

#ifdef NS_LOG_ADDREF
#undef NS_LOG_ADDREF
#endif
#ifdef NS_LOG_RELEASE
#undef NS_LOG_RELEASE
#endif

#define NS_LOG_ADDREF( p, n, c, s ) nsLogAddRefCamera(__FILE__, __LINE__, (p), (n), (c), (s))
#ifdef DOM_CAMERA_DEBUG_REFS_ABORT_ON_DELETE
#define NS_LOG_RELEASE( p, n, c )   nsLogReleaseCamera(__FILE__, __LINE__, (p), (n), (c), DOM_CAMERA_DEBUG_REFS_ABORT_ON_DELETE)
#else
#define NS_LOG_RELEASE( p, n, c )   nsLogReleaseCamera(__FILE__, __LINE__, (p), (n), (c), false)
#endif

#endif // PR_LOGGING

#endif // DOM_CAMERA_CAMERACOMMON_H