650 lines
16 KiB
C++
650 lines
16 KiB
C++
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//-------------------------------------------------------------------------
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//
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// Copyright (c) 1999 Microsoft Corporation.
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//
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// camopen.cpp
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//
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// Abstract:
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//
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// Enumerate disk images to emulate camera
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//
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// Author:
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//
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// Edward Reus 27/Jul/99
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// modeled after code by Mark Enstrom
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//
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//-------------------------------------------------------------------------
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#include <windows.h>
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#include <stdio.h>
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#include <objbase.h>
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#include <tchar.h>
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#include "sti.h"
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#include "ircamera.h"
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#include <irthread.h>
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extern HINSTANCE g_hInst; // Global hInstance
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#define __GLOBALPROPVARS__
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#include "resource.h"
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#include "defprop.h"
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//-------------------------------------------------------------------------
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// IrUsdDevice::CamOpenCamera()
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//
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// Initialize the IrTran-P camera driver.
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//
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// This is a helper called by IrUsdDevice::Initialize().
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//
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// Arguments:
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//
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// pGenericStatus - camera status
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//
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// Return Value:
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//
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// HRESULT - S_OK
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//
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//-------------------------------------------------------------------------
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HRESULT IrUsdDevice::CamOpenCamera( IN OUT CAMERA_STATUS *pCameraStatus )
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{
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HRESULT hr = S_OK;
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SYSTEMTIME SystemTime;
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WIAS_TRACE((g_hInst,"IrUsdDevice::CamOpenCamerai()"));
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//
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// Initialize camera state:
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//
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memset( pCameraStatus, 0, sizeof(CAMERA_STATUS) );
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pCameraStatus->FirmwareVersion = 0x00000001;
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pCameraStatus->NumPictTaken = 20;
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pCameraStatus->NumPictRemaining = 0;
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pCameraStatus->ThumbWidth = 80;
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pCameraStatus->ThumbHeight= 60;
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pCameraStatus->PictWidth = 300;
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pCameraStatus->PictHeight = 300;
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GetSystemTime( &(pCameraStatus->CameraTime) );
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return hr;
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}
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//-------------------------------------------------------------------------
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// IrUsdDevice::CamBuildImageTree()
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//
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// Build the tree of camera images by enumerating a disk directory for
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// all .JPG files.
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//
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// Arguments:
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//
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// pCamStatus - device status
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// ppRootFile - return new root of item tree
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//
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// Return Value:
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//
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// status
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//
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//-------------------------------------------------------------------------
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HRESULT IrUsdDevice::CamBuildImageTree( OUT CAMERA_STATUS *pCamStatus,
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OUT IWiaDrvItem **ppRootFile )
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{
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HRESULT hr = S_OK;
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WIAS_TRACE((g_hInst,"IrUsdDevice::CamBuildImageTree()"));
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//
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// Create the new image root:
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//
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BSTR bstrRoot = SysAllocString(L"Root");
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if (!bstrRoot)
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{
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return E_OUTOFMEMORY;
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}
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//
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// Call Wia service library to create new root item:
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//
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hr = wiasCreateDrvItem( WiaItemTypeFolder | WiaItemTypeRoot | WiaItemTypeDevice,
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bstrRoot,
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m_bstrRootFullItemName,
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(IWiaMiniDrv*)this,
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sizeof(IRCAM_IMAGE_CONTEXT),
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NULL,
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ppRootFile );
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SysFreeString(bstrRoot);
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if (FAILED(hr))
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{
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WIAS_ERROR((g_hInst,"ddevBuildDeviceItemTree, CreateDeviceItem failed"));
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return hr;
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}
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//
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// Enumerate the root directory:
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//
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CHAR *pszImageDirectory = GetImageDirectory();
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if (!pszImageDirectory)
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{
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return E_OUTOFMEMORY;
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}
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#ifdef UNICODE
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WCHAR wszPath[MAX_PATH];
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mbstowcs( wszPath, pszImageDirectory, strlen(pszImageDirectory) );
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hr = EnumDiskImages( *ppRootFile, wszPath );
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#else
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hr = EnumDiskImages( *ppRootFile, pszImageDirectory );
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#endif
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// Don't free pszImageDirectory!!
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return (hr);
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}
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//-------------------------------------------------------------------------
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// IrUsdDevice::EnumDiskImages()
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//
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// Walk through camera temp directory looking for JPEG files to pick up.
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//
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// Arguments:
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//
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// pRootFile
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// pwszDirName
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//
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// Return Value:
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//
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// status
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//
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//-------------------------------------------------------------------------
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HRESULT IrUsdDevice::EnumDiskImages( IWiaDrvItem *pRootFile,
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TCHAR *pszDirName )
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{
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HRESULT hr = E_FAIL;
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WIN32_FIND_DATA FindData;
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TCHAR *pTempName;
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WIAS_TRACE((g_hInst,"IrUsdDevice::EnumDiskImages()"));
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pTempName = (TCHAR*)ALLOC(MAX_PATH);
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if (!pTempName)
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{
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return E_OUTOFMEMORY;
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}
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_tcscpy( pTempName, pszDirName);
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_tcscat( pTempName, TEXT("\\*.jpg") );
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//
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// Look for files at the specified directory:
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//
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HANDLE hFile = FindFirstFile( pTempName, &FindData );
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if (hFile != INVALID_HANDLE_VALUE)
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{
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BOOL bStatus;
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do {
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//
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// Add an image to this folder.
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//
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// Create file name:
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//
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_tcscpy(pTempName, pszDirName);
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_tcscat(pTempName, TEXT("\\"));
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_tcscat(pTempName, FindData.cFileName);
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//
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// Create a new DrvItem for this image and add it to the
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// DrvItem tree.
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//
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IWiaDrvItem *pNewImage;
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hr = CreateItemFromFileName(
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WiaItemTypeFile | WiaItemTypeImage,
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pTempName,
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FindData.cFileName,
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&pNewImage);
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if (FAILED(hr))
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{
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break;
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}
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hr = pNewImage->AddItemToFolder(pRootFile);
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pNewImage->Release();
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//
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// Look for the next image:
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//
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bStatus = FindNextFile(hFile,&FindData);
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} while (bStatus);
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FindClose(hFile);
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}
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//
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// Now look for directories,
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// add a new PCAMERA_FILE for each sub directory found
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//
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_tcscpy(pTempName, pszDirName);
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_tcscat(pTempName, TEXT("\\*.*"));
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hFile = FindFirstFile( pTempName,&FindData );
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if (hFile != INVALID_HANDLE_VALUE)
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{
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BOOL bStatus;
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do {
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if ( (FindData.cFileName[0] != L'.')
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&& (FindData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
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{
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//
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// Found a subdirectory:
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//
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_tcscpy(pTempName, pszDirName);
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_tcscat(pTempName, TEXT("\\"));
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_tcscat(pTempName, FindData.cFileName);
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//
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// Create a new folder for the sub-directory:
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//
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IWiaDrvItem *pNewFolder;
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hr = CreateItemFromFileName(
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WiaItemTypeFolder,
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pTempName,
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FindData.cFileName,
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&pNewFolder);
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if (FAILED(hr))
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{
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continue;
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}
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hr = pNewFolder->AddItemToFolder(pRootFile);
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pNewFolder->Release();
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if (hr == S_OK)
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{
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//
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// Enumerate the sub-folder
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//
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EnumDiskImages(pNewFolder, pTempName);
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}
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}
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bStatus = FindNextFile(hFile,&FindData);
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} while (bStatus);
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FindClose(hFile);
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}
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FREE(pTempName);
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return S_OK;
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}
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//-------------------------------------------------------------------------
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// IrUsdDevice::CreateItemFromFileName()
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//
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// Helper funtion used by EnumDiskImages to create dev items and names.
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//
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// Arguments:
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//
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// FolderType - type of item to create
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// pszPath - complete path name
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// pszName - file name
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// ppNewFolder - return new item
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//
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// Return Value:
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//
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// status
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//
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//-------------------------------------------------------------------------
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HRESULT IrUsdDevice::CreateItemFromFileName( LONG FolderType,
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TCHAR *pszPath,
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TCHAR *pszName,
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IWiaDrvItem **ppNewFolder )
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{
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HRESULT hr = S_OK;
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WCHAR wszFullItemName[MAX_PATH];
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WCHAR wszTemp[MAX_PATH];
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BSTR bstrItemName;
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BSTR bstrFullItemName;
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IWiaDrvItem *pNewFolder = 0;
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WIAS_TRACE((g_hInst,"IrUsdDevice::CreateItemFromFileName()"));
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*ppNewFolder = NULL;
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//
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// Convert path to wide char
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//
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CHAR *pszImageDirectory = ::GetImageDirectory();
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if (!pszImageDirectory)
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{
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return E_OUTOFMEMORY;
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}
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DWORD dwImageDirectoryLen = strlen(pszImageDirectory);
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#ifndef UNICODE
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MultiByteToWideChar( CP_ACP,
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0,
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pszPath + dwImageDirectoryLen,
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strlen(pszPath) - dwImageDirectoryLen - 4,
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wszTemp,
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MAX_PATH);
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#else
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wcscpy(wszTemp, pszPath+dwImageDirectoryLen);
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#endif
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if (FolderType & ~WiaItemTypeFolder)
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{
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wszTemp[_tcslen(pszPath) - strlen(pszImageDirectory) - 4] = 0;
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}
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wcscpy(wszFullItemName, m_bstrRootFullItemName);
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wcscat(wszFullItemName, wszTemp);
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//
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// Convert item name to wide char:
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//
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#ifndef UNICODE
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MultiByteToWideChar( CP_ACP,
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0,
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pszName,
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strlen(pszName)-4,
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wszTemp,
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MAX_PATH);
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#else
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wcscpy(wszTemp, pszName);
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#endif
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if (FolderType & ~WiaItemTypeFolder)
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{
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wszTemp[_tcslen(pszName)-4] = 0;
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}
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bstrItemName = SysAllocString(wszTemp);
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if (bstrItemName)
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{
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bstrFullItemName = SysAllocString(wszFullItemName);
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if (bstrFullItemName)
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{
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//
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// Call WIA to create new DrvItem
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//
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IRCAM_IMAGE_CONTEXT *pContext = 0;
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hr = wiasCreateDrvItem( FolderType,
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bstrItemName,
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bstrFullItemName,
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(IWiaMiniDrv *)this,
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sizeof(IRCAM_IMAGE_CONTEXT),
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(BYTE **)&pContext,
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&pNewFolder);
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if (hr == S_OK)
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{
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//
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// init device specific context (image path)
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//
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pContext->pszCameraImagePath = _tcsdup(pszPath);
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}
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else
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{
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WIAS_ERROR((g_hInst,"ddevBuildDeviceItemTree, wiasCreateDrvItem failed"));
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}
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SysFreeString(bstrFullItemName);
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}
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else
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{
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||
|
|
WIAS_ERROR((g_hInst,"ddevBuildDeviceItemTree, unable to allocate full item name"));
|
||
|
|
hr = E_OUTOFMEMORY;
|
||
|
|
}
|
||
|
|
|
||
|
|
SysFreeString(bstrItemName);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
WIAS_ERROR((g_hInst,"ddevBuildDeviceItemTree, unable to allocate item name"));
|
||
|
|
hr = E_OUTOFMEMORY;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Assign output value and cleanup
|
||
|
|
//
|
||
|
|
|
||
|
|
if (hr == S_OK)
|
||
|
|
{
|
||
|
|
*ppNewFolder = pNewFolder;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// delete item
|
||
|
|
//
|
||
|
|
}
|
||
|
|
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
//-------------------------------------------------------------------------
|
||
|
|
// SetItemSize()
|
||
|
|
//
|
||
|
|
// Helper function to call wias to calc new item size
|
||
|
|
//
|
||
|
|
// Arguments:
|
||
|
|
//
|
||
|
|
// pWiasContext - item
|
||
|
|
//
|
||
|
|
// Return Value:
|
||
|
|
//
|
||
|
|
// Status
|
||
|
|
//
|
||
|
|
//-------------------------------------------------------------------------
|
||
|
|
HRESULT SetItemSize( BYTE* pWiasContext )
|
||
|
|
{
|
||
|
|
HRESULT hr;
|
||
|
|
MINIDRV_TRANSFER_CONTEXT drvTranCtx;
|
||
|
|
|
||
|
|
memset( &drvTranCtx, 0, sizeof(MINIDRV_TRANSFER_CONTEXT) );
|
||
|
|
|
||
|
|
hr = wiasReadPropGuid( pWiasContext,
|
||
|
|
WIA_IPA_FORMAT,
|
||
|
|
(GUID*)&drvTranCtx.guidFormatID,
|
||
|
|
NULL,
|
||
|
|
false );
|
||
|
|
if (FAILED(hr))
|
||
|
|
{
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
hr = wiasReadPropLong( pWiasContext,
|
||
|
|
WIA_IPA_TYMED,
|
||
|
|
(LONG*)&drvTranCtx.tymed,
|
||
|
|
NULL,
|
||
|
|
false );
|
||
|
|
if (FAILED(hr))
|
||
|
|
{
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
WIAS_TRACE((g_hInst,"SetItemSize(): tymed: %d",drvTranCtx.tymed));
|
||
|
|
|
||
|
|
//
|
||
|
|
// wias works for DIB and TIFF formats.
|
||
|
|
//
|
||
|
|
// Driver doesn't support JPEG
|
||
|
|
//
|
||
|
|
|
||
|
|
hr = wiasGetImageInformation(pWiasContext,
|
||
|
|
WIAS_INIT_CONTEXT,
|
||
|
|
&drvTranCtx);
|
||
|
|
|
||
|
|
if (hr == S_OK)
|
||
|
|
{
|
||
|
|
WIAS_TRACE((g_hInst,"SetItemSize(): lItemSize: %d",drvTranCtx.lItemSize));
|
||
|
|
hr = wiasWritePropLong(pWiasContext, WIA_IPA_ITEM_SIZE, drvTranCtx.lItemSize);
|
||
|
|
hr = wiasWritePropLong(pWiasContext, WIA_IPA_BYTES_PER_LINE, drvTranCtx.cbWidthInBytes);
|
||
|
|
}
|
||
|
|
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
//-------------------------------------------------------------------------
|
||
|
|
// IrUsdDevice::InitImageInformation()
|
||
|
|
//
|
||
|
|
// Init image properties
|
||
|
|
//
|
||
|
|
// Arguments:
|
||
|
|
//
|
||
|
|
//
|
||
|
|
// Return Value:
|
||
|
|
//
|
||
|
|
// Status
|
||
|
|
//
|
||
|
|
//-------------------------------------------------------------------------
|
||
|
|
HRESULT IrUsdDevice::InitImageInformation( BYTE *pWiasContext,
|
||
|
|
IRCAM_IMAGE_CONTEXT *pContext,
|
||
|
|
LONG *plDevErrVal)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
HRESULT hr = S_OK;
|
||
|
|
CAMERA_PICTURE_INFO camInfo;
|
||
|
|
PROPVARIANT propVar;
|
||
|
|
|
||
|
|
WIAS_TRACE((g_hInst,"IrUsdDevice::InitImageInformation()"));
|
||
|
|
|
||
|
|
//
|
||
|
|
// GET image info
|
||
|
|
//
|
||
|
|
|
||
|
|
hr = CamGetPictureInfo( pContext,
|
||
|
|
&camInfo );
|
||
|
|
|
||
|
|
if (hr != S_OK)
|
||
|
|
{
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Use WIA services to write image properties:
|
||
|
|
//
|
||
|
|
wiasWritePropLong( pWiasContext,
|
||
|
|
WIA_IPC_THUMB_WIDTH,
|
||
|
|
camInfo.ThumbWidth);
|
||
|
|
|
||
|
|
wiasWritePropLong( pWiasContext,
|
||
|
|
WIA_IPC_THUMB_HEIGHT,
|
||
|
|
camInfo.ThumbHeight );
|
||
|
|
|
||
|
|
wiasWritePropLong( pWiasContext,
|
||
|
|
WIA_IPA_PIXELS_PER_LINE,
|
||
|
|
camInfo.PictWidth );
|
||
|
|
|
||
|
|
wiasWritePropLong( pWiasContext,
|
||
|
|
WIA_IPA_NUMBER_OF_LINES,
|
||
|
|
camInfo.PictHeight );
|
||
|
|
|
||
|
|
wiasWritePropGuid( pWiasContext,
|
||
|
|
WIA_IPA_PREFERRED_FORMAT,
|
||
|
|
WiaImgFmt_JPEG );
|
||
|
|
|
||
|
|
wiasWritePropLong( pWiasContext,
|
||
|
|
WIA_IPA_DEPTH,
|
||
|
|
camInfo.PictBitsPerPixel );
|
||
|
|
|
||
|
|
wiasWritePropBin( pWiasContext,
|
||
|
|
WIA_IPA_ITEM_TIME,
|
||
|
|
sizeof(SYSTEMTIME),
|
||
|
|
(PBYTE)&camInfo.TimeStamp );
|
||
|
|
|
||
|
|
wiasWritePropLong( pWiasContext,
|
||
|
|
WIA_IPA_DATATYPE,
|
||
|
|
WIA_DATA_COLOR );
|
||
|
|
|
||
|
|
wiasWritePropLong( pWiasContext,
|
||
|
|
WIA_IPA_ITEM_SIZE,
|
||
|
|
camInfo.PictCompSize );
|
||
|
|
|
||
|
|
wiasWritePropLong( pWiasContext,
|
||
|
|
WIA_IPA_BYTES_PER_LINE,
|
||
|
|
camInfo.PictBytesPerRow );
|
||
|
|
|
||
|
|
//
|
||
|
|
// Calculate item size
|
||
|
|
//
|
||
|
|
// hr = SetItemSize(pWiasContext); BUGBUG
|
||
|
|
|
||
|
|
//
|
||
|
|
// Load a thumbnail of the image:
|
||
|
|
//
|
||
|
|
PBYTE pThumb;
|
||
|
|
LONG lSize;
|
||
|
|
|
||
|
|
hr = CamLoadThumbnail(pContext, &pThumb, &lSize);
|
||
|
|
|
||
|
|
if (hr == S_OK)
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// write thumb property
|
||
|
|
//
|
||
|
|
PROPSPEC propSpec;
|
||
|
|
PROPVARIANT propVar;
|
||
|
|
|
||
|
|
propVar.vt = VT_VECTOR | VT_UI1;
|
||
|
|
propVar.caub.cElems = lSize;
|
||
|
|
propVar.caub.pElems = pThumb;
|
||
|
|
|
||
|
|
propSpec.ulKind = PRSPEC_PROPID;
|
||
|
|
propSpec.propid = WIA_IPC_THUMBNAIL;
|
||
|
|
|
||
|
|
hr = wiasWriteMultiple(pWiasContext, 1, &propSpec, &propVar);
|
||
|
|
|
||
|
|
FREE(pThumb);
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Use WIA services to set the extended property access and
|
||
|
|
// valid value information from gWiaPropInfoDefaults.
|
||
|
|
//
|
||
|
|
|
||
|
|
hr = wiasSetItemPropAttribs(pWiasContext,
|
||
|
|
NUM_CAM_ITEM_PROPS,
|
||
|
|
gPropSpecDefaults,
|
||
|
|
gWiaPropInfoDefaults);
|
||
|
|
return hr;
|
||
|
|
}
|