SDL_sysfilesystem.cpp
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "../../SDL_internal.h"
/* TODO, WinRT: remove the need to compile this with C++/CX (/ZW) extensions, and if possible, without C++ at all
*/
#ifdef __WINRT__
extern "C" {
#include "SDL_filesystem.h"
#include "SDL_error.h"
#include "SDL_hints.h"
#include "SDL_stdinc.h"
#include "SDL_system.h"
#include "../../core/windows/SDL_windows.h"
}
#include <string>
#include <unordered_map>
using namespace std;
using namespace Windows::Storage;
extern "C" const wchar_t *
SDL_WinRTGetFSPathUNICODE(SDL_WinRT_Path pathType)
{
switch (pathType) {
case SDL_WINRT_PATH_INSTALLED_LOCATION:
{
static wstring path;
if (path.empty()) {
path = Windows::ApplicationModel::Package::Current->InstalledLocation->Path->Data();
}
return path.c_str();
}
case SDL_WINRT_PATH_LOCAL_FOLDER:
{
static wstring path;
if (path.empty()) {
path = ApplicationData::Current->LocalFolder->Path->Data();
}
return path.c_str();
}
#if (WINAPI_FAMILY != WINAPI_FAMILY_PHONE_APP) || (NTDDI_VERSION > NTDDI_WIN8)
case SDL_WINRT_PATH_ROAMING_FOLDER:
{
static wstring path;
if (path.empty()) {
path = ApplicationData::Current->RoamingFolder->Path->Data();
}
return path.c_str();
}
case SDL_WINRT_PATH_TEMP_FOLDER:
{
static wstring path;
if (path.empty()) {
path = ApplicationData::Current->TemporaryFolder->Path->Data();
}
return path.c_str();
}
#endif
default:
break;
}
SDL_Unsupported();
return NULL;
}
extern "C" const char *
SDL_WinRTGetFSPathUTF8(SDL_WinRT_Path pathType)
{
typedef unordered_map<SDL_WinRT_Path, string> UTF8PathMap;
static UTF8PathMap utf8Paths;
UTF8PathMap::iterator searchResult = utf8Paths.find(pathType);
if (searchResult != utf8Paths.end()) {
return searchResult->second.c_str();
}
const wchar_t * ucs2Path = SDL_WinRTGetFSPathUNICODE(pathType);
if (!ucs2Path) {
return NULL;
}
char * utf8Path = WIN_StringToUTF8(ucs2Path);
utf8Paths[pathType] = utf8Path;
SDL_free(utf8Path);
return utf8Paths[pathType].c_str();
}
extern "C" char *
SDL_GetBasePath(void)
{
const char * srcPath = SDL_WinRTGetFSPathUTF8(SDL_WINRT_PATH_INSTALLED_LOCATION);
size_t destPathLen;
char * destPath = NULL;
if (!srcPath) {
SDL_SetError("Couldn't locate our basepath: %s", SDL_GetError());
return NULL;
}
destPathLen = SDL_strlen(srcPath) + 2;
destPath = (char *) SDL_malloc(destPathLen);
if (!destPath) {
SDL_OutOfMemory();
return NULL;
}
SDL_snprintf(destPath, destPathLen, "%s\\", srcPath);
return destPath;
}
extern "C" char *
SDL_GetPrefPath(const char *org, const char *app)
{
/* WinRT note: The 'SHGetFolderPath' API that is used in Windows 7 and
* earlier is not available on WinRT or Windows Phone. WinRT provides
* a similar API, but SHGetFolderPath can't be called, at least not
* without violating Microsoft's app-store requirements.
*/
const WCHAR * srcPath = NULL;
WCHAR path[MAX_PATH];
char *retval = NULL;
WCHAR* worg = NULL;
WCHAR* wapp = NULL;
size_t new_wpath_len = 0;
BOOL api_result = FALSE;
srcPath = SDL_WinRTGetFSPathUNICODE(SDL_WINRT_PATH_LOCAL_FOLDER);
if ( ! srcPath) {
SDL_SetError("Unable to find a source path");
return NULL;
}
if (SDL_wcslen(srcPath) >= MAX_PATH) {
SDL_SetError("Path too long.");
return NULL;
}
SDL_wcslcpy(path, srcPath, SDL_arraysize(path));
worg = WIN_UTF8ToString(org);
if (worg == NULL) {
SDL_OutOfMemory();
return NULL;
}
wapp = WIN_UTF8ToString(app);
if (wapp == NULL) {
SDL_free(worg);
SDL_OutOfMemory();
return NULL;
}
new_wpath_len = SDL_wcslen(worg) + SDL_wcslen(wapp) + SDL_wcslen(path) + 3;
if ((new_wpath_len + 1) > MAX_PATH) {
SDL_free(worg);
SDL_free(wapp);
SDL_SetError("Path too long.");
return NULL;
}
SDL_wcslcat(path, L"\\", new_wpath_len + 1);
SDL_wcslcat(path, worg, new_wpath_len + 1);
SDL_free(worg);
api_result = CreateDirectoryW(path, NULL);
if (api_result == FALSE) {
if (GetLastError() != ERROR_ALREADY_EXISTS) {
SDL_free(wapp);
WIN_SetError("Couldn't create a prefpath.");
return NULL;
}
}
SDL_wcslcat(path, L"\\", new_wpath_len + 1);
SDL_wcslcat(path, wapp, new_wpath_len + 1);
SDL_free(wapp);
api_result = CreateDirectoryW(path, NULL);
if (api_result == FALSE) {
if (GetLastError() != ERROR_ALREADY_EXISTS) {
WIN_SetError("Couldn't create a prefpath.");
return NULL;
}
}
SDL_wcslcat(path, L"\\", new_wpath_len + 1);
retval = WIN_StringToUTF8(path);
return retval;
}
#endif /* __WINRT__ */
WIN_UTF8ToString
#define WIN_UTF8ToString(S)
Definition: SDL_windows.h:46
srcPath
GLuint srcPath
Definition: SDL_opengl_glext.h:9163
SDL_GetError
#define SDL_GetError
Definition: SDL_dynapi_overrides.h:119
std
STL namespace.
retval
SDL_bool retval
Definition: testgamecontroller.c:65
SDL_system.h
SDL_wcslen
#define SDL_wcslen
Definition: SDL_dynapi_overrides.h:396
SDL_free
void SDL_free(void *mem)
SDL_hints.h
WIN_StringToUTF8
#define WIN_StringToUTF8(S)
Definition: SDL_windows.h:45
SDL_wcslcat
#define SDL_wcslcat
Definition: SDL_dynapi_overrides.h:398
SDL_wcslcpy
#define SDL_wcslcpy
Definition: SDL_dynapi_overrides.h:397
NULL
#define NULL
Definition: begin_code.h:143
SDL_OutOfMemory
#define SDL_OutOfMemory()
Definition: SDL_error.h:52
WIN_SetError
int WIN_SetError(const char *prefix)
SDL_SetError
#define SDL_SetError
Definition: SDL_dynapi_overrides.h:36
SDL_stdinc.h
SDL_strlen
#define SDL_strlen
Definition: SDL_dynapi_overrides.h:399
SDL_GetPrefPath
#define SDL_GetPrefPath
Definition: SDL_dynapi_overrides.h:140
SDL_filesystem.h
Include file for filesystem SDL API functions.
SDL_WinRTGetFSPathUTF8
#define SDL_WinRTGetFSPathUTF8
Definition: SDL_dynapi_overrides.h:583
SDL_snprintf
#define SDL_snprintf
Definition: SDL_dynapi_overrides.h:46
SDL_arraysize
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:93
SDL_malloc
#define SDL_malloc
Definition: SDL_dynapi_overrides.h:380
path
GLsizei const GLchar *const * path
Definition: SDL_opengl_glext.h:3730
SDL_WinRTGetFSPathUNICODE
#define SDL_WinRTGetFSPathUNICODE
Definition: SDL_dynapi_overrides.h:582
FALSE
#define FALSE
Definition: edid-parse.c:32
SDL_GetBasePath
char * SDL_GetBasePath(void)
Get the path where the application resides.
SDL_error.h
SDL_Unsupported
#define SDL_Unsupported()
Definition: SDL_error.h:53