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palm-os-sdk/PalmOne/Samples/CameraV3/Src/CameraSample.c

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/******************************************************************************
*
* Copyright (c) 1999-2000 Handspring, Inc. All rights reserved.
*
* File: CameraSample.c
*
* Release: Palm OS 5.0 (111904)
*
*****************************************************************************/
#include <PalmOS.h>
#include <68K\Hs.h>
#include <palmOneCamera.h>
#include <palmOneCreators.h>
#include "CameraSample_Rsc.h"
#include "CameraSettings.h"
/***********************************************************************
*
* Internal Constants
*
***********************************************************************/
// Define the minimum OS version we support (2.0 for now).
#define ourMinVersion sysMakeROMVersion(2,0,0,sysROMStageRelease,0)
#define kPalmOS10Version sysMakeROMVersion(1,0,0,sysROMStageRelease,0)
#define previewStartChr 's'
#define previewEndChr 'e'
#define previewChr 'p'
#define captureChr 'c'
#define sleepChr 'x'
#define wakeChr 'w'
#define testPatternChr 't'
#define eraseChr 'r'
#define previewLeft 0
#define previewTop 36
#define previewWidth 160
#define previewHeight 120
#define previewDepth 16
#define statusLeft 80
#define statusTop 1
#define statusWidth 80
#define statusHeight 12
#define camMaskRegisterSpaceIFP 0x000001 // Image flow processor registers
#define camAddressSpaceIFP (((UInt32)camMaskRegisterSpaceIFP) << 16)
/***********************************************************************
*
* Internal Structures
*
***********************************************************************/
/***********************************************************************
*
* Global variables
*
***********************************************************************/
static UInt16 gLibRefNum = sysInvalidRefNum;
static Boolean Preview = false;
static Boolean TestPattern = false;
static Boolean OldLibrary = true;
// change for GCC build by tcui
FormPtr frmP;
/***********************************************************************
*
* Internal Functions
*
***********************************************************************/
typedef struct PhotoCaptureInfo
{
WinHandle winH;
UInt8 *bufferP;
} PhotoCaptureInfo;
Err PhotoCaptureCallback(void *bufferP, UInt32 size, void *userDataP);
/***********************************************************************
*
* FUNCTION: RomVersionCompatible
*
* DESCRIPTION: This routine checks that a ROM version is meet your
* minimum requirement.
*
* PARAMETERS: requiredVersion - minimum rom version required
* (see sysFtrNumROMVersion in SystemMgr.h
* for format)
* launchFlags - flags that indicate if the application
* UI is initialized.
*
* RETURNED: error code or zero if rom is compatible
*
* REVISION HISTORY:
*
*
***********************************************************************/
static Err RomVersionCompatible(UInt32 requiredVersion, UInt16 launchFlags)
{
UInt32 romVersion;
// See if we're on in minimum required version of the ROM or later.
FtrGet(sysFtrCreator, sysFtrNumROMVersion, &romVersion);
if (romVersion < requiredVersion)
{
if ((launchFlags & (sysAppLaunchFlagNewGlobals | sysAppLaunchFlagUIApp)) ==
(sysAppLaunchFlagNewGlobals | sysAppLaunchFlagUIApp))
{
FrmAlert (RomIncompatibleAlert);
// Palm OS 1.0 will continuously relaunch this app unless we switch to
// another safe one.
if (romVersion <= kPalmOS10Version)
{
AppLaunchWithCommand(sysFileCDefaultApp, sysAppLaunchCmdNormalLaunch, NULL);
}
}
return sysErrRomIncompatible;
}
return errNone;
}
/***********************************************************************
*
* FUNCTION: DisplayError
*
* DESCRIPTION: This routine displays an error dialog.
*
* PARAMETERS: msg - error message
* err - error code
*
* RETURNED: void
*
* REVISION HISTORY:
*
*
***********************************************************************/
static void DisplayError (Char * msg, Err err)
{
Char errStr[32];
StrPrintF (errStr, "0x%x", err);
FrmCustomAlert (LibraryLoadErrorAlert, msg, errStr, NULL);
}
#if 0
#pragma mark ------------------------------------
#endif
/***********************************************************************
*
* FUNCTION: MainFormUpdateStatus
*
* DESCRIPTION: This routine draws a camera frame.
*
* PARAMETERS: frmP - pointer to the MainForm form.
* message - message to display
*
* RETURNED: nothing
*
* REVISION HISTORY:
*
*
***********************************************************************/
static void MainFormUpdateStatus (FormPtr frmP, Char * message)
{
RectangleType r;
RctSetRectangle (&r, statusLeft, statusTop, statusWidth, statusHeight);
WinEraseRectangle (&r, 0);
WinDrawChars (message, StrLen(message), statusLeft, statusTop);
}
// add for GCC build by tcui
static void TestMainFormUpdateStatus (Char * message)
{
RectangleType r;
RctSetRectangle (&r, statusLeft, statusTop, statusWidth, statusHeight);
WinEraseRectangle (&r, 0);
WinDrawChars (message, StrLen(message), statusLeft, statusTop);
}
Err PhotoCaptureCallback(void *bufferP, UInt32 size, void *userDataP)
{
PhotoCaptureInfo *captureInfoP = (PhotoCaptureInfo *) userDataP;
MemMove(captureInfoP->bufferP, bufferP, size);
captureInfoP->bufferP += size;
return errNone;
}
/***********************************************************************
*
* FUNCTION: WindowPreview
*
* DESCRIPTION: This routine draws a camera frame.
*
* PARAMETERS: none
*
* RETURNED: nothing
*
* REVISION HISTORY:
*
*
***********************************************************************/
static Err WindowPreview (void)
{
UInt32 i;
Err err = 0;
UInt16 * bits;
BitmapType * bitmapP;
// New library stuff
CamLibBitmapInfoType info;
CamLibCaptureType capture;
CamLibSettingType captureFormat;
PhotoCaptureInfo captureInfo;
CamLibSettingType settingType;
if (OldLibrary)
{
bitmapP = BmpCreate (previewWidth, previewHeight, previewDepth, 0, &err);
if (bitmapP)
{
bits = (UInt16 *) BmpGetBits (bitmapP);
for (i = 0; i < previewWidth * previewHeight; i++)
bits[i] = 0x07e0;
err = CameraLibPreview (gLibRefNum, bits,
kCameraImageFormatRGB16, previewWidth, previewHeight);
if (! err)
{
WinDrawBitmap (bitmapP, previewLeft, previewTop);
}
BmpDelete (bitmapP);
}
}
else
{
// add for bug fix #210850 by tcui
CamLibControl(gLibRefNum, kCamLibCtrlCaptureSizeGet, &settingType);
settingType.type = kCamLibImageSizeQVGA;
err = CamLibControl(gLibRefNum, kCamLibCtrlCaptureSizeSet, &settingType);
// end of add
// set the capture format
captureFormat.type = kCamLibCaptureDataFormatRGB565;
CamLibControl(gLibRefNum, kCamLibCtrlCaptureFormatSet, (void *) &captureFormat);
// get bitmap info
CamLibControl(gLibRefNum, kCamLibCtrlCaptureGetBitmapInfo, (void *) &info);
// prepare offscreen window
captureInfo.winH = WinCreateOffscreenWindow(info.width / 2, info.height / 2, nativeFormat, &err);
captureInfo.bufferP = BmpGetBits(WinGetBitmap(captureInfo.winH));
capture.userDataP = &captureInfo;
capture.callbackP = PhotoCaptureCallback;
// take a picture
CamLibControl(gLibRefNum, kCamLibCtrlCapture, &capture);
// display the picture
WinDrawBitmap(WinGetBitmap(captureInfo.winH), previewLeft, previewTop);
WinDeleteWindow(captureInfo.winH, true);
}
return err;
}
/***********************************************************************
*
* FUNCTION: WindowEraseImage
*
* DESCRIPTION: This routine erases the image.
*
* PARAMETERS: none
*
* RETURNED: nothing
*
* REVISION HISTORY:
*
*
***********************************************************************/
static void WindowEraseImage (void)
{
RectangleType r;
RGBColorType rgbColor;
IndexedColorType color;
RctSetRectangle (&r, previewLeft, previewTop, previewWidth, previewHeight);
rgbColor.index = 0; // index of color or best match to cur CLUT or unused.
rgbColor.r = 255; // amount of red, 0->255
rgbColor.g = 0; // amount of green, 0->255
rgbColor.b = 0; // amount of blue, 0->255
color = WinRGBToIndex (&rgbColor);
WinDrawRectangle (&r, 0);
color = WinSetForeColor (color);
}
/***********************************************************************
*
* FUNCTION: MainFormHandleKeyEvent
*
* DESCRIPTION: This routine performs the menu command specified.
*
* PARAMETERS: command - menu item id
*
* RETURNED: nothing
*
* REVISION HISTORY:
*
*
***********************************************************************/
static Boolean MainFormHandleKeyEvent(FormPtr frmP, EventPtr eventP)
{
Err err = 0;
UInt16 chr;
Boolean handled = false;
chr = eventP->data.keyDown.chr;
if (TxtCharIsValid(chr))
{
switch (chr)
{
case previewStartChr:
MainFormUpdateStatus (frmP, "Preview started");
err = TurnPreviewOn(gLibRefNum, OldLibrary);
Preview = true;
break;
case previewEndChr:
MainFormUpdateStatus (frmP, "Preview stopped");
err = TurnPreviewOff(gLibRefNum, OldLibrary);
Preview = false;
break;
case captureChr:
case previewChr:
if (Preview)
err = TurnPreviewOff(gLibRefNum, OldLibrary);
Preview = false;
MainFormUpdateStatus (frmP, "Capture ...");
err = WindowPreview ();
MainFormUpdateStatus (frmP, "Capture done");
break;
case sleepChr:
MainFormUpdateStatus (frmP, "Sleep");
err = CameraLibrarySleep (gLibRefNum, OldLibrary);
break;
case wakeChr:
MainFormUpdateStatus (frmP, "Wake");
err = CameraLibraryWake (gLibRefNum, OldLibrary);
break;
case eraseChr:
WindowEraseImage ();
break;
case testPatternChr:
if (! TestPattern)
{
TestPattern = true;
MainFormUpdateStatus (frmP, "Test on");
err = TurnPreviewOn(gLibRefNum, OldLibrary);
Preview = true;
err = CameraLibRegisterSet (gLibRefNum, camAddressSpaceIFP | 0x48, 0x04);
if (err)
{
DisplayError ("Get error:", err);
}
}
else
{
TestPattern = false;
MainFormUpdateStatus (frmP, "Test off");
err = CameraLibRegisterSet (gLibRefNum, 0x48, 0x00);
if (err)
{
DisplayError ("Get error:", err);
}
}
if (err)
{
DisplayError ("Get error:", err);
break;
}
break;
}
}
if (err)
{
FrmCustomAlert(LibraryLoadErrorAlert, "Error:", NULL, NULL);
}
return handled;
}
// Implement Menu/About function
#define appFileCreator 'TRCS'
/***********************************************************************
*
* FUNCTION: MainFormDoCommand
*
* DESCRIPTION: This routine performs the menu command specified.
*
* PARAMETERS: command - menu item id
*
* RETURNED: nothing
*
* REVISION HISTORY:
*
*
***********************************************************************/
static Boolean
MainFormDoCommand (
UInt16 command )
{
Boolean handled = false;
UInt16 cardNo;
LocalID dbID;
SysCurAppDatabase(&cardNo, &dbID);
switch (command)
{
case OptionsAbout:
MenuEraseStatus(0);
HsAboutHandspringApp(cardNo, dbID, "2007", "Palm DTS Team");
handled = true;
break;
default:
break;
}
return handled;
}
// About function end
/***********************************************************************
*
* FUNCTION: MainFormHandleEvent
*
* DESCRIPTION: This routine is the event handler for the
* "MainForm" of this application.
*
* PARAMETERS: eventP - a pointer to an EventType structure
*
* RETURNED: true if the event has handle and should not be passed
* to a higher level handler.
*
* REVISION HISTORY:
*
*
***********************************************************************/
static Boolean MainFormHandleEvent (EventPtr eventP)
{
Boolean handled = false;
FormPtr frmP = FrmGetActiveForm();
switch (eventP->eType)
{
case menuEvent:
{
if (Preview)
{
TurnPreviewOff(gLibRefNum, OldLibrary);
Preview = false;
}
handled = MainFormDoCommand(eventP->data.menu.itemID);
if (!Preview)
{
MainFormUpdateStatus (frmP, "Preview started");
TurnPreviewOn(gLibRefNum, OldLibrary);
Preview = true;
}
break;
}
case frmUpdateEvent:
case frmOpenEvent:
{
FrmSetFocus(frmP, noFocus);
FrmSetFocus(frmP, FrmGetObjectIndex(frmP, MainPreviewButton));
FrmDrawForm (frmP);
handled = true;
MainFormUpdateStatus (frmP, "Preview started");
TurnPreviewOn(gLibRefNum, OldLibrary);
Preview = true;
break;
}
case frmCloseEvent:
{
if (Preview)
{
TurnPreviewOff(gLibRefNum, OldLibrary);
Preview = false;
}
break;
}
case ctlSelectEvent:
{
switch (eventP->data.ctlEnter.controlID)
{
case MainPreviewButton:
// The Capture button is pressed.
// change for GCC build by tcui
//frmP = FrmGetActiveForm();
if (Preview)
TurnPreviewOff(gLibRefNum, OldLibrary);
Preview = false;
// change for GCC build by tcui
// lost the correct frmP value when return. codewarrior doesn't compile the second parameter
//MainFormUpdateStatus (frmP, "Capture ...");
//TestMainFormUpdateStatus ("Capture ...");
TestMainFormUpdateStatus ("Capture done");
WindowPreview ();
// change for GCC build by tcui
// lost the correct frmP value when return. codewarrior doesn't compile the second parameter
//MainFormUpdateStatus (frmP, "Capture done");
// this call will cause crash in GCC build
//TestMainFormUpdateStatus ("Capture done");
handled = true;
break;
}
break;
}
case keyDownEvent:
{
handled = MainFormHandleKeyEvent (frmP, eventP);
}
default:
break;
}
return handled;
}
/***********************************************************************
*
* FUNCTION: AppHandleEvent
*
* DESCRIPTION: This routine loads form resources and set the event
* handler for the form loaded.
*
* PARAMETERS: event - a pointer to an EventType structure
*
* RETURNED: true if the event has handle and should not be passed
* to a higher level handler.
*
* REVISION HISTORY:
*
*
***********************************************************************/
static Boolean AppHandleEvent(EventPtr eventP)
{
UInt16 formId;
FormPtr frmP;
if (eventP->eType == frmLoadEvent)
{
// Load the form resource.
formId = eventP->data.frmLoad.formID;
frmP = FrmInitForm(formId);
FrmSetActiveForm(frmP);
// Set the event handler for the form. The handler of the currently
// active form is called by FrmHandleEvent each time is receives an
// event.
switch (formId)
{
case MainForm:
FrmSetEventHandler(frmP, MainFormHandleEvent);
break;
default:
break;
}
return true;
}
return false;
}
/***********************************************************************
*
* FUNCTION: AppEventLoop
*
* DESCRIPTION: This routine is the event loop for the application.
*
* PARAMETERS: nothing
*
* RETURNED: nothing
*
* REVISION HISTORY:
*
*
***********************************************************************/
static void AppEventLoop(void)
{
UInt16 error;
EventType event;
UInt32 timeout = evtWaitForever;
do {
EvtGetEvent(&event, timeout);
if (! SysHandleEvent(&event))
if (! MenuHandleEvent(0, &event, &error))
if (! AppHandleEvent(&event))
FrmDispatchEvent(&event);
} while (event.eType != appStopEvent);
}
/***********************************************************************
*
* FUNCTION: AppStart
*
* DESCRIPTION: Get the current application's preferences.
*
* PARAMETERS: nothing
*
* RETURNED: Err value 0 if nothing went wrong
*
* REVISION HISTORY:
*
*
***********************************************************************/
static Err AppStart(void)
{
Err error = errNone;
UInt32 toDepth = 16;
UInt32 currentDepth;
UInt32 supportedDepths;
UInt16 cardNo = 0;
LocalID dbID = 0;
// Get current display depth.
WinScreenMode (winScreenModeGet, NULL, NULL, &currentDepth, NULL);
// Get supported display depths.
WinScreenMode (winScreenModeGetSupportedDepths, NULL, NULL, &supportedDepths, NULL);
if ((currentDepth != toDepth) && (supportedDepths & (1 << (toDepth - 1))) )
{
error = WinScreenMode (winScreenModeSet, NULL, NULL, &toDepth, NULL);
if (error)
{
FrmCustomAlert(LibraryLoadErrorAlert, "WinScreenMode error:", NULL, NULL);
return error;
}
}
// Library load (Try loading library from Treo 600)
if( gLibRefNum == sysInvalidRefNum )
{
error = SysLibFind(kCameraLibName, &gLibRefNum);
if (error)
{
error = SysLibLoad(sysFileTLibrary, kCameraLibCreator, &gLibRefNum);
if (error)
gLibRefNum = sysInvalidRefNum;
}
}
// Library load (Try loading library from Ace)
if (gLibRefNum == sysInvalidRefNum)
{
error = SysLibFind(kCamLibName, &gLibRefNum);
if (error != errNone)
error = SysLibLoad(kCamLibType, kCamLibCreator, &gLibRefNum);
if (error)
{
FrmCustomAlert(LibraryLoadErrorAlert, "Unable to load Camera library", NULL, NULL);
return error;
}
OldLibrary = false;
}
SysCurAppDatabase(&cardNo, &dbID);
SysNotifyRegister(cardNo, dbID, kPalmCreatorIDLcdState, 0, sysNotifyNormalPriority, 0);
error = CameraLibraryOpen(gLibRefNum, OldLibrary);
return error;
}
/***********************************************************************
*
* FUNCTION: AppStop
*
* DESCRIPTION: Save the current state of the application.
*
* PARAMETERS: nothing
*
* RETURNED: nothing
*
* REVISION HISTORY:
*
*
***********************************************************************/
static void AppStop(void)
{
UInt16 cardNo = 0;
LocalID dbID = 0;
// Close all the open forms.
FrmCloseAllForms ();
SysCurAppDatabase(&cardNo, &dbID);
SysNotifyUnregister(cardNo, dbID, kPalmCreatorIDLcdState, sysNotifyNormalPriority);
// Unload the Camera library
if( gLibRefNum != sysInvalidRefNum )
{
CameraLibraryClose(gLibRefNum, OldLibrary);
SysLibRemove(gLibRefNum);
}
}
/***********************************************************************
*
* FUNCTION: AppMain
*
* DESCRIPTION: This is the main entry point for the application.
*
* PARAMETERS: cmd - word value specifying the launch code.
* cmdPB - pointer to a structure that is associated with
* the launch code.
* launchFlags - word value providing extra information
* about the launch.
*
* RETURNED: Result of launch
*
* REVISION HISTORY:
*
*
***********************************************************************/
static UInt32 AppMain(UInt16 cmd, MemPtr cmdPBP, UInt16 launchFlags)
{
Err error;
error = RomVersionCompatible (ourMinVersion, launchFlags);
if (error) return (error);
switch (cmd)
{
case sysAppLaunchCmdNormalLaunch:
{
error = AppStart();
if (error)
return error;
FrmGotoForm(MainForm);
AppEventLoop();
AppStop();
break;
}
case sysAppLaunchCmdNotify:
{
SysNotifyParamType* pNotify = (SysNotifyParamType *) cmdPBP;
switch (pNotify->notifyType)
{
case kPalmCreatorIDLcdState:
{
if (pNotify->notifyDetailsP != 0)
{
// LCD is turning on
UInt16 frmID = FrmGetActiveFormID();
if (frmID == MainForm)
{
// if keyguard is on, turn it off, as
// the camera preview goes straight to screen by communicating
// with the camera driver, therefore any forms will be hidden
// by it if displayed.
Err err;
UInt32 locked = 0;
UInt32 value;
if (FtrGet(hsFtrCreator, hsFtrIDVersion, &value) == errNone)
{
err = HsAttrGet(hsAttrKeyboardLocked, 0, &locked);
if ( (err == errNone) && (locked) )
{
locked = 0;
err = HsAttrSet(hsAttrKeyboardLocked, 0, &locked);
}
}
FrmUpdateForm(MainForm, frmRedrawUpdateCode);
}
}
break;
}
default:
break;
}
}
default:
break;
}
return errNone;
}
/***********************************************************************
*
* FUNCTION: PilotMain
*
* DESCRIPTION: This is the main entry point for the application.
*
* PARAMETERS: cmd - word value specifying the launch code.
* cmdPB - pointer to a structure that is associated with the launch code.
* launchFlags - word value providing extra information about the launch.
* RETURNED: Result of launch
*
* REVISION HISTORY:
*
*
***********************************************************************/
UInt32 PilotMain( UInt16 cmd, MemPtr cmdPBP, UInt16 launchFlags)
{
return AppMain(cmd, cmdPBP, launchFlags);
}
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