360 lines
8.6 KiB
C++
360 lines
8.6 KiB
C++
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#include "main.h"
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#include "./pngLoader.h"
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#include "./browserObject.h"
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#include "./ifc_wasabihelper.h"
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#include <shlwapi.h>
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#include <strsafe.h>
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#ifndef LOAD_LIBRARY_AS_IMAGE_RESOURCE
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#define LOAD_LIBRARY_AS_IMAGE_RESOURCE 0x000000020
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#endif //LOAD_LIBRARY_AS_IMAGE_RESOURCE
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PngLoader::PngLoader(HINSTANCE hInstance, LPCWSTR pszName, BOOL fPremultiply)
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: ref(1), instance(hInstance), name(NULL), flags(0)
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{
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name = Plugin_DuplicateResString(pszName);
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if (FALSE != fPremultiply)
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flags |= flagPremultiply;
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}
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PngLoader::~PngLoader()
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{
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Plugin_FreeResString(name);
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}
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HRESULT PngLoader::CreateInstance(HINSTANCE hInstance, LPCWSTR pszName, BOOL fPremultiply, ifc_omimageloader **imageLoader)
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{
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if (NULL == imageLoader) return E_POINTER;
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*imageLoader = NULL;
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if (NULL == pszName) return E_INVALIDARG;
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*imageLoader = new PngLoader(hInstance, pszName, fPremultiply);
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if (NULL == *imageLoader) return E_OUTOFMEMORY;
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return S_OK;
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}
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size_t PngLoader::AddRef()
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{
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return InterlockedIncrement((LONG*)&ref);
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}
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size_t PngLoader::Release()
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{
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if (0 == ref)
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return ref;
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LONG r = InterlockedDecrement((LONG*)&ref);
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if (0 == r)
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delete(this);
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return r;
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}
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int PngLoader::QueryInterface(GUID interface_guid, void **object)
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{
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return E_NOINTERFACE;
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}
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static HRESULT PngLoader_LoadResourceData(const void *data, unsigned int size, void **dataOut, int *cx, int *cy, BOOL fPremultiply)
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{
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if (NULL == data) return E_INVALIDARG;
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svc_imageLoader *loader = NULL;
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ifc_wasabihelper *wasabi = NULL;
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if (FAILED(Plugin_GetWasabiHelper(&wasabi))) return E_UNEXPECTED;
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HRESULT hr = wasabi->GetPngLoader(&loader);
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wasabi->Release();
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if (FAILED(hr)) return hr;
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*dataOut = (FALSE == fPremultiply) ?
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loader->loadImageData(data, size, cx, cy) :
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loader->loadImage(data, size, cx, cy);
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if (NULL == *dataOut)
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hr = E_OUTOFMEMORY;
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loader->Release();
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return hr;
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}
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static HRESULT PngLoader_LoadFromResource(HINSTANCE hInstance, LPCWSTR pszName, LPCWSTR pszType, void **dataOut, int *cx, int *cy, BOOL fPremultiply)
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{
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UINT errorCode = 0;
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HRSRC res = FindResourceW(hInstance, pszName, pszType);
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if (NULL == res)
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{
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errorCode = GetLastError();
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return HRESULT_FROM_WIN32(errorCode);
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}
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HRESULT hr;
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HANDLE handle = LoadResource(hInstance, res);
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if (NULL == handle)
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{
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errorCode = GetLastError();
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hr = HRESULT_FROM_WIN32(errorCode);
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}
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else
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{
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UINT resourceSize = SizeofResource(hInstance, res);
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if (0 == resourceSize)
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{
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errorCode = GetLastError();
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hr = HRESULT_FROM_WIN32(errorCode);
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}
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else
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{
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void *resourceData = LockResource(handle);
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if (NULL == resourceData)
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hr = E_OUTOFMEMORY;
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else
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hr = PngLoader_LoadResourceData(resourceData, resourceSize, dataOut, cx, cy, fPremultiply);
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}
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FreeResource(handle);
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}
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return hr;
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}
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static HRESULT PngLoader_ParseResProtocol(LPWSTR pszAddress, LPCWSTR defaultType, HINSTANCE *module, LPCWSTR *resourceName, LPCWSTR *resourceType)
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{
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if (NULL == module || NULL == resourceName || NULL == resourceType)
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return E_POINTER;
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if (NULL == pszAddress || L'\0' == *pszAddress)
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return E_INVALIDARG;
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INT cchAddress = lstrlenW(pszAddress);
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const WCHAR szPrefix[] = L"res://";
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INT cchPrefix = ARRAYSIZE(szPrefix) - 1;
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if (cchAddress <= cchPrefix)
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return S_FALSE;
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if (CSTR_EQUAL != CompareStringW(CSTR_INVARIANT, NORM_IGNORECASE, pszAddress, cchPrefix, szPrefix, cchPrefix))
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return S_FALSE;
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pszAddress += cchPrefix;
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cchAddress -= cchPrefix;
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LPWSTR resType = NULL;
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LPWSTR resName = NULL;
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LPWSTR p = pszAddress + cchAddress;
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while (p != pszAddress && L'/' != *p) p--;
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if (p != pszAddress && p < (pszAddress + cchAddress))
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{
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resName = p + 1;
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*p = L'\0';
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p--;
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}
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if (NULL == resName || L'\0' == *resName)
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return E_FAIL;
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while (p != pszAddress && L'/' != *p) p--;
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if (p != pszAddress && p < resName)
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{
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resType = p + 1;
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if (L'\0' == *resType)
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{
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resType = NULL;
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}
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else
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{
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resType = p + 1;
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*p = L'\0';
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p--;
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}
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}
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HINSTANCE hModule = LoadLibraryExW(pszAddress, NULL, LOAD_LIBRARY_AS_DATAFILE | LOAD_LIBRARY_AS_IMAGE_RESOURCE);
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if (NULL == hModule)
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{
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UINT errorCode = GetLastError();
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if (NULL != resType)
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{
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*(resType - 1) = L'/';
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resType = NULL;
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hModule = LoadLibraryExW(pszAddress, NULL, LOAD_LIBRARY_AS_DATAFILE | LOAD_LIBRARY_AS_IMAGE_RESOURCE);
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if (NULL == hModule) errorCode = GetLastError();
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}
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if (ERROR_SUCCESS != errorCode)
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return HRESULT_FROM_WIN32(errorCode);
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}
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if (NULL == resType)
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resType = (LPWSTR)defaultType;
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if (NULL != resType && FALSE == IS_INTRESOURCE(resType) && L'#' == *resType)
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{
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INT typeId = 0;
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if (FALSE != StrToIntExW(resType + 1, STIF_DEFAULT, &typeId))
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resType = MAKEINTRESOURCEW(typeId);
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}
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if (NULL != resName && FALSE == IS_INTRESOURCE(resName) && L'#' == *resName)
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{
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INT nameId;
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if (FALSE != StrToIntExW(resName + 1, STIF_DEFAULT, &nameId))
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resName = MAKEINTRESOURCEW(nameId);
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}
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*module = hModule;
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*resourceName = resName;
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*resourceType = resType;
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return S_OK;
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}
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static HRESULT PngLoader_LoadFromFile(LPWSTR pszPath, void **dataOut, int *cx, int *cy, BOOL fPremultiply)
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{
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HINSTANCE resModule = NULL;
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LPCWSTR resName = NULL, resType = NULL;
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HRESULT hr = PngLoader_ParseResProtocol(pszPath, RT_RCDATA, &resModule, &resName, &resType);
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if (S_OK == hr)
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return PngLoader_LoadFromResource(resModule, resName, resType, dataOut, cx, cy, fPremultiply);
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if (FAILED(hr))
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return hr;
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UINT errorCode = 0;
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HANDLE hFile = CreateFileW(pszPath, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN, NULL);
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if (INVALID_HANDLE_VALUE == hFile)
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{
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errorCode = GetLastError();
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return HRESULT_FROM_WIN32(errorCode);
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}
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UINT resourceSize = GetFileSize(hFile, NULL);
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if (INVALID_FILE_SIZE == resourceSize)
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{
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errorCode = GetLastError();
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hr = HRESULT_FROM_WIN32(errorCode);
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}
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else
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{
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void *resourceData = malloc(resourceSize);
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if (NULL == resourceData)
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hr = E_OUTOFMEMORY;
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else
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{
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DWORD readed = 0;
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if (0 == ReadFile(hFile, resourceData, resourceSize, &readed, NULL) || resourceSize != readed)
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{
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errorCode = GetLastError();
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hr = HRESULT_FROM_WIN32(errorCode);
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}
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else
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{
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hr = PngLoader_LoadResourceData(resourceData, resourceSize, dataOut, cx, cy, fPremultiply);
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}
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free(resourceData);
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}
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}
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CloseHandle(hFile);
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return hr;
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}
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HRESULT PngLoader::LoadData(int *widthOut, int *heightOut, void** dataOut)
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{
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if (NULL == dataOut)
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return E_POINTER;
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*dataOut = NULL;
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return (NULL == instance && !IS_INTRESOURCE(name))?
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PngLoader_LoadFromFile(name, dataOut, widthOut, heightOut, (0 != (flagPremultiply & flags))) :
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PngLoader_LoadFromResource(instance, name, RT_RCDATA, dataOut, widthOut, heightOut, (0 != (flagPremultiply & flags)));
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}
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HRESULT PngLoader::FreeData(void *data)
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{
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if (NULL == data)
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return S_FALSE;
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ifc_wasabihelper *wasabi = NULL;
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HRESULT hr = Plugin_GetWasabiHelper(&wasabi);
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if (SUCCEEDED(hr) && wasabi != NULL)
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{
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api_memmgr *memoryManager = NULL;
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hr = wasabi->GetMemoryManager(&memoryManager);
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if (SUCCEEDED(hr) && memoryManager != NULL)
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{
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memoryManager->sysFree(data);
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memoryManager->Release();
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}
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wasabi->Release();
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}
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return hr;
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}
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HRESULT PngLoader::LoadBitmapEx(HBITMAP *bitmapOut, BITMAPINFOHEADER *headerInfo, void **dataOut)
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{
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INT imageCX, imageCY;
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if(NULL == bitmapOut) return E_POINTER;
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void *data = NULL;
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HRESULT hr = LoadData(&imageCX, &imageCY, &data);
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if (FAILED(hr)) return hr;
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ZeroMemory(headerInfo, sizeof(BITMAPINFOHEADER));
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headerInfo->biSize = sizeof(BITMAPINFOHEADER);
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headerInfo->biCompression = BI_RGB;
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headerInfo->biBitCount = 32;
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headerInfo->biPlanes = 1;
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headerInfo->biWidth = imageCX;
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headerInfo->biHeight = -imageCY;
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*bitmapOut = CreateDIBSection(NULL, (LPBITMAPINFO)headerInfo, DIB_RGB_COLORS, dataOut, NULL, 0);
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if (NULL != (*bitmapOut))
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{
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CopyMemory((*dataOut), data, headerInfo->biWidth * abs(headerInfo->biHeight) * sizeof(DWORD));
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}
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else
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{
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*dataOut = NULL;
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hr = E_FAIL;
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}
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FreeData(data);
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return hr;
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}
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HRESULT PngLoader::LoadBitmap(HBITMAP *bitmapOut, int *widthOut, int *heightOut)
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{
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BITMAPINFOHEADER header = {0};
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void *pixelData = NULL;
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if(NULL == bitmapOut) return E_POINTER;
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HRESULT hr = LoadBitmapEx(bitmapOut, &header, &pixelData);
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if (SUCCEEDED(hr))
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{
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if (NULL != widthOut) *widthOut = header.biWidth;
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if (NULL != heightOut) *heightOut = header.biHeight;
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}
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else
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{
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if (NULL != widthOut) *widthOut = 0;
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if (NULL != heightOut) *heightOut = 0;
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}
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return hr;
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}
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#define CBCLASS PngLoader
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START_DISPATCH;
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CB(ADDREF, AddRef);
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CB(RELEASE, Release);
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CB(QUERYINTERFACE, QueryInterface);
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CB(API_LOADDATA, LoadData);
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CB(API_FREEDATA, FreeData);
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CB(API_LOADBITMAP, LoadBitmap);
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CB(API_LOADBITMAPEX, LoadBitmapEx);
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END_DISPATCH;
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#undef CBCLASS
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