486 lines
13 KiB
C++
486 lines
13 KiB
C++
/*****************************************************************************\
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FILE: pictures.cpp
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DESCRIPTION:
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Manage the pictures in the user's directories. Convert them when needed.
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Handle caching and making sure we don't use too much diskspace. Also add
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picture frame when needed.
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BryanSt 12/24/2000
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Copyright (C) Microsoft Corp 2000-2001. All rights reserved.
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\*****************************************************************************/
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#include "stdafx.h"
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#include <shlobj.h>
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#include "pictures.h"
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#include "util.h"
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#undef __IShellFolder2_FWD_DEFINED__
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#include <ccstock.h>
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CPictureManager * g_pPictureMgr = NULL;
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int CALLBACK DSACallback_FreePainting(LPVOID p, LPVOID pData)
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{
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SSPICTURE_INFO * pPInfo = (SSPICTURE_INFO *) p;
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if (pPInfo)
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{
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Str_SetPtr(&pPInfo->pszPath, NULL);
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}
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return 1;
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}
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CPictureManager::CPictureManager(CMSLogoDXScreenSaver * pMain)
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{
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m_nCurrent = 0;
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m_hdsaPictures = NULL;
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m_pMain = pMain;
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m_hdsaBatches = 0;
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m_nCurrentBatch = 0;
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_EnumPaintings();
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}
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CPictureManager::~CPictureManager()
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{
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if (m_hdsaBatches)
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{
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DSA_Destroy(m_hdsaBatches);
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m_hdsaBatches = NULL;
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}
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if (m_hdsaPictures)
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{
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DSA_DestroyCallback(m_hdsaPictures, DSACallback_FreePainting, NULL);
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m_hdsaPictures = NULL;
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}
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m_pMain = NULL;
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}
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HRESULT CPictureManager::_PInfoCreate(int nIndex, LPCTSTR pszPath)
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{
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HRESULT hr = S_OK;
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SSPICTURE_INFO pInfo = {0};
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pInfo.fInABatch = FALSE;
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pInfo.pszPath = NULL;
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Str_SetPtr(&pInfo.pszPath, pszPath);
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// We add them in a random order so the pattern doesn't get boring.
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if (-1 == DSA_InsertItem(m_hdsaPictures, nIndex, &pInfo))
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{
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// We failed so free the memory
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Str_SetPtr(&pInfo.pszPath, NULL);
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hr = E_OUTOFMEMORY;
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}
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return S_OK;
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}
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HRESULT CPictureManager::_AddPaintingsFromDir(LPCTSTR pszPath)
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{
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HRESULT hr = E_OUTOFMEMORY;
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if (!m_hdsaPictures)
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{
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m_hdsaPictures = DSA_Create(sizeof(SSPICTURE_INFO), 20);
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}
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if (m_hdsaPictures)
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{
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TCHAR szSearch[MAX_PATH];
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WIN32_FIND_DATA findFileData;
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hr = S_OK;
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StrCpyN(szSearch, pszPath, ARRAYSIZE(szSearch));
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PathAppend(szSearch, TEXT("*.*"));
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HANDLE hFindFiles = FindFirstFile(szSearch, &findFileData);
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if (INVALID_HANDLE_VALUE != hFindFiles)
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{
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while ((INVALID_HANDLE_VALUE != hFindFiles))
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{
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if (!PathIsDotOrDotDot(findFileData.cFileName))
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{
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if (!(FILE_ATTRIBUTE_DIRECTORY & findFileData.dwFileAttributes))
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{
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LPCTSTR pszExt = PathFindExtension(findFileData.cFileName);
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if (pszExt && pszExt[0] &&
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(!StrCmpI(pszExt, TEXT(".bmp"))
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|| !StrCmpI(pszExt, TEXT(".jpg"))
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|| !StrCmpI(pszExt, TEXT(".jpeg"))
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|| !StrCmpI(pszExt, TEXT(".png"))
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// || !StrCmpI(pszExt, TEXT(".gif"))
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|| !StrCmpI(pszExt, TEXT(".tiff"))
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))
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{
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int nInsertLoc = GetRandomInt(0, max(0, DSA_GetItemCount(m_hdsaPictures) - 1));
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StrCpyN(szSearch, pszPath, ARRAYSIZE(szSearch));
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PathAppend(szSearch, findFileData.cFileName);
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hr = _PInfoCreate(nInsertLoc, szSearch);
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}
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}
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else
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{
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StrCpyN(szSearch, pszPath, ARRAYSIZE(szSearch));
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PathAppend(szSearch, findFileData.cFileName);
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hr = _AddPaintingsFromDir(szSearch);
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}
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}
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if (!FindNextFile(hFindFiles, &findFileData))
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{
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break;
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}
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}
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FindClose(hFindFiles);
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}
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}
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return hr;
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}
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HRESULT CPictureManager::_EnumPaintings(void)
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{
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HRESULT hr = E_FAIL;
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TCHAR szDir[MAX_PATH];
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if (g_pConfig)
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{
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hr = S_OK;
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if (g_pConfig->GetFolderOn(CONFIG_FOLDER_MYPICTS) &&
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SHGetSpecialFolderPath(NULL, szDir, CSIDL_MYPICTURES, TRUE))
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{
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hr = _AddPaintingsFromDir(szDir);
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}
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if (g_pConfig->GetFolderOn(CONFIG_FOLDER_COMMONPICTS))
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{
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// TODO: When Common Pictures are added.
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}
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if (g_pConfig->GetFolderOn(CONFIG_FOLDER_OTHER) &&
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SUCCEEDED(g_pConfig->GetOtherDir(szDir, ARRAYSIZE(szDir))))
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{
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hr = _AddPaintingsFromDir(szDir);
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}
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// If we have less than 10 paintings, then we force add the
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// Windows wallpapers.
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if ((g_pConfig->GetFolderOn(CONFIG_FOLDER_WINPICTS) ||
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(10 > DSA_GetItemCount(m_hdsaPictures))) &&
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SHGetSpecialFolderPath(NULL, szDir, CSIDL_WINDOWS, TRUE))
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{
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PathAppend(szDir, TEXT("Web\\Wallpaper"));
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hr = _AddPaintingsFromDir(szDir);
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}
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if (m_hdsaPictures)
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{
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m_nCurrent = GetRandomInt(0, max(0, DSA_GetItemCount(m_hdsaPictures) - 1));
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}
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}
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return hr;
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}
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HRESULT CPictureManager::_LoadTexture(SSPICTURE_INFO * pInfo, BOOL fFaultInTexture)
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{
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// We keep trying until we hit the end. We give up after that.
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HRESULT hr = E_INVALIDARG;
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if (pInfo)
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{
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if (!pInfo->pTexture)
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{
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pInfo->pTexture = new CTexture(m_pMain, pInfo->pszPath, NULL, 1.0f);
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}
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hr = (pInfo->pTexture ? S_OK : E_OUTOFMEMORY);
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if (pInfo->pTexture && fFaultInTexture)
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{
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pInfo->pTexture->GetTexture(NULL); // Force the image to be paged in.
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}
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}
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return hr;
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}
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#define GNPF_NONE 0x00000000
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#define GNPF_ALREADYLOADED 0x00000001
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#define GNPF_FAULTINTEXTURE 0x00000002
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#define GNPF_ALLOWALREADYINBATCH 0x00000004
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HRESULT CPictureManager::_TryGetNextPainting(SSPICTURE_INFO ** ppInfo, DWORD dwFlags)
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{
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// We keep trying until we hit the end. We give up after that.
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HRESULT hr = E_FAIL;
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while (m_hdsaPictures &&
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FAILED(hr) && (m_nCurrent < DSA_GetItemCount(m_hdsaPictures)))
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{
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SSPICTURE_INFO * pPInfo = (SSPICTURE_INFO *) DSA_GetItemPtr(m_hdsaPictures, m_nCurrent);
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if (pPInfo && pPInfo->pszPath)
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{
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if (!pPInfo->fInABatch || (dwFlags & GNPF_ALLOWALREADYINBATCH))
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{
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if (dwFlags & GNPF_ALREADYLOADED)
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{
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if (pPInfo->pTexture && pPInfo->pTexture->IsLoadedInAnyDevice())
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{
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// The caller only wants an object that's already pre-fetched, and we just found one.
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*ppInfo = pPInfo;
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pPInfo->fInABatch = TRUE;
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hr = S_OK;
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}
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}
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else
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{
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// The caller is happen to this now. We only get this far if we failed to load it.
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hr = _LoadTexture(pPInfo, (dwFlags & GNPF_FAULTINTEXTURE));
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if (SUCCEEDED(hr))
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{
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*ppInfo = pPInfo;
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pPInfo->fInABatch = TRUE;
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}
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}
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}
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}
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m_nCurrent++;
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}
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return hr;
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}
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HRESULT CPictureManager::_GetNextWithWrap(SSPICTURE_INFO ** ppInfo, BOOL fAlreadyLoaded, BOOL fFaultInTexture)
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{
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DWORD dwFlags = ((fAlreadyLoaded ? GNPF_ALREADYLOADED : GNPF_NONE) | (fFaultInTexture ? GNPF_FAULTINTEXTURE : GNPF_NONE));
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*ppInfo = NULL;
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HRESULT hr = _TryGetNextPainting(ppInfo, dwFlags);
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if (m_nCurrent >= DSA_GetItemCount(m_hdsaPictures))
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{
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m_nCurrent = 0;
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if (FAILED(hr))
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{
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// Maybe it was necessary to wrap. We don't loop to prevent infinite recursion in corner cases.
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hr = _TryGetNextPainting(ppInfo, dwFlags);
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if (FAILED(hr))
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{
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// Maybe we have so few paintings available that we need to reuse.
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m_nCurrent = 0;
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hr = _TryGetNextPainting(ppInfo, (dwFlags | GNPF_ALLOWALREADYINBATCH));
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}
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}
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}
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if (SUCCEEDED(hr) && (10 < DSA_GetItemCount(m_hdsaPictures)) &&
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(1 == GetRandomInt(0, 4)))
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{
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// There is a one in for chance we want to skip pictures. This will keep the order somewhat random
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// while still not always going in the same order. We only do this if the user has more than 10
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// pictures or it may lap and the user will have the same picture twice in the same room.
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m_nCurrent += GetRandomInt(1, 5);
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if (m_nCurrent >= DSA_GetItemCount(m_hdsaPictures))
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{
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m_nCurrent = 0;
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}
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}
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return hr;
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}
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HRESULT CPictureManager::_CreateNewBatch(int nBatch, BOOL fFaultInTexture)
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{
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HRESULT hr = S_OK;
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SSPICTURES_BATCH batch = {0};
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int nIndex;
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for (nIndex = 0; (nIndex < ARRAYSIZE(batch.pInfo)) && SUCCEEDED(hr); nIndex++)
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{
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// First try and not get any dups
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hr = _GetNextWithWrap(&(batch.pInfo[nIndex]), FALSE, fFaultInTexture);
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}
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if (SUCCEEDED(hr))
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{
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if (-1 == DSA_AppendItem(m_hdsaBatches, &batch))
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{
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// We failed so free the memory
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hr = E_OUTOFMEMORY;
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}
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}
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return hr;
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}
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///////////////////////////////////////////////////////////////////////
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// FUNCTION: GetPainting
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///////////////////////////////////////////////////////////////////////
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HRESULT CPictureManager::GetPainting(int nBatch, int nIndex, DWORD dwFlags, CTexture ** ppTexture)
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{
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HRESULT hr = E_FAIL;
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if (!m_hdsaBatches)
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{
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m_hdsaBatches = DSA_Create(sizeof(SSPICTURES_BATCH), 20);
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}
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m_nCurrentBatch = max(m_nCurrentBatch, nBatch);
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*ppTexture = NULL;
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if (m_hdsaPictures && m_hdsaBatches)
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{
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hr = S_OK;
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while ((nBatch >= DSA_GetItemCount(m_hdsaBatches)) && SUCCEEDED(hr))
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{
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hr = _CreateNewBatch(nBatch, TRUE);
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}
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if (SUCCEEDED(hr))
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{
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SSPICTURES_BATCH * pBatch = (SSPICTURES_BATCH *) DSA_GetItemPtr(m_hdsaBatches, nBatch);
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if (pBatch && ((void *)-1 != pBatch) && pBatch->pInfo[nIndex] && pBatch->pInfo[nIndex]->pTexture)
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{
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IUnknown_Set((IUnknown **) ppTexture, (IUnknown *) pBatch->pInfo[nIndex]->pTexture);
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}
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else
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{
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hr = E_FAIL;
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}
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}
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}
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return hr;
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}
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///////////////////////////////////////////////////////////////////////
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// FUNCTION: PreFetch
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///////////////////////////////////////////////////////////////////////
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HRESULT CPictureManager::PreFetch(int nBatch, int nToFetch)
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{
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HRESULT hr = S_OK;
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while ((nBatch >= DSA_GetItemCount(m_hdsaBatches)) && SUCCEEDED(hr))
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{
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hr = _CreateNewBatch(nBatch, FALSE);
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if (FAILED(hr))
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{
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DXUtil_Trace(TEXT("ERROR: PreFetch() _CreateNewBatch failed. nBatch=%d\n"), nBatch);
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}
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}
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SSPICTURES_BATCH * pBatch = (SSPICTURES_BATCH *) DSA_GetItemPtr(m_hdsaBatches, nBatch);
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if (pBatch && (nToFetch < ARRAYSIZE(pBatch->pInfo)))
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{
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int nIndex;
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for (nIndex = 0; (nIndex < ARRAYSIZE(pBatch->pInfo)) && nToFetch; nIndex++)
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{
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if (pBatch->pInfo[nIndex] &&
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(!pBatch->pInfo[nIndex]->pTexture ||
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!pBatch->pInfo[nIndex]->pTexture->IsLoadedForThisDevice()))
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{
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hr = _LoadTexture(pBatch->pInfo[nIndex], TRUE);
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nToFetch--;
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}
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}
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}
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else
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{
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hr = E_FAIL;
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}
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return hr;
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}
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///////////////////////////////////////////////////////////////////////
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// FUNCTION: ReleaseBatch
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///////////////////////////////////////////////////////////////////////
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HRESULT CPictureManager::ReleaseBatch(int nBatch)
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{
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HRESULT hr = E_INVALIDARG;
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for (int nIndex = 0; nIndex < nBatch; nIndex++)
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{
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SSPICTURES_BATCH * pBatch = (SSPICTURES_BATCH *) DSA_GetItemPtr(m_hdsaBatches, nIndex);
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for (int nIndex2 = 0; nIndex2 < ARRAYSIZE(pBatch->pInfo); nIndex2++)
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{
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if (pBatch && pBatch->pInfo[nIndex2] && (pBatch->pInfo[nIndex2]->fInABatch || pBatch->pInfo[nIndex2]->pTexture))
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{
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ReleaseBatch(nIndex);
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DXUtil_Trace(TEXT("ERROR: ReleaseBatch() and previous batch aren't released. nBatch=%d, nIndex=%d\n"), nBatch, nIndex);
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break;
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}
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}
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}
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if (nBatch < m_nCurrentBatch)
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{
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SSPICTURES_BATCH * pBatch = (SSPICTURES_BATCH *) DSA_GetItemPtr(m_hdsaBatches, nBatch);
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if (pBatch && ((void *)-1 != pBatch))
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{
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hr = S_OK;
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for (int nIndex = 0; (nIndex < ARRAYSIZE(pBatch->pInfo)); nIndex++)
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{
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if (pBatch->pInfo[nIndex])
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{
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SAFE_RELEASE(pBatch->pInfo[nIndex]->pTexture);
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pBatch->pInfo[nIndex]->fInABatch = FALSE;
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pBatch->pInfo[nIndex] = NULL;
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}
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}
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}
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}
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else
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{
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DXUtil_Trace(TEXT("ERROR: ReleaseBatch() and batch is bad. nBatch=%d, m_nCurrentBatch=%d\n"), nBatch, m_nCurrentBatch);
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hr = E_UNEXPECTED;
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}
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return hr;
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}
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