mirror of
https://github.com/libsdl-org/SDL.git
synced 2026-05-03 04:24:41 +00:00
Use SDL_bool instead an int return code in the SDL API
Most SDL functions used to indicate success or failure using an int return code. These functions have been changed to return SDL_bool. Here is a coccinelle patch to change code that previously compared the return value to 0 and changes it to a boolean test: @ bool_return_type @ identifier func =~ "^(SDL_AddEventWatch|SDL_AddHintCallback|SDL_AddSurfaceAlternateImage|SDL_AddVulkanRenderSemaphores|SDL_BindAudioStream|SDL_BindAudioStreams|SDL_BlitSurface|SDL_BlitSurface9Grid|SDL_BlitSurfaceScaled|SDL_BlitSurfaceTiled|SDL_BlitSurfaceTiledWithScale|SDL_BlitSurfaceUnchecked|SDL_BlitSurfaceUncheckedScaled|SDL_CaptureMouse|SDL_ClearAudioStream|SDL_ClearClipboardData|SDL_ClearComposition|SDL_ClearError|SDL_ClearProperty|SDL_ClearSurface|SDL_CloseIO|SDL_CloseStorage|SDL_ConvertAudioSamples|SDL_ConvertEventToRenderCoordinates|SDL_ConvertPixels|SDL_ConvertPixelsAndColorspace|SDL_CopyFile|SDL_CopyProperties|SDL_CopyStorageFile|SDL_CreateDirectory|SDL_CreateStorageDirectory|SDL_CreateWindowAndRenderer|SDL_DateTimeToTime|SDL_DestroyWindowSurface|SDL_DetachVirtualJoystick|SDL_DisableScreenSaver|SDL_EnableScreenSaver|SDL_EnumerateDirectory|SDL_EnumerateProperties|SDL_EnumerateStorageDirectory|SDL_FillSurfaceRect|SDL_FillSurfaceRects|SDL_FlashWindow|SDL_FlipSurface|SDL_FlushAudioStream|SDL_FlushRenderer|SDL_GL_DestroyContext|SDL_GL_GetAttribute|SDL_GL_GetSwapInterval|SDL_GL_LoadLibrary|SDL_GL_MakeCurrent|SDL_GL_SetAttribute|SDL_GL_SetSwapInterval|SDL_GL_SwapWindow|SDL_GetAudioDeviceFormat|SDL_GetAudioStreamFormat|SDL_GetCameraFormat|SDL_GetClosestFullscreenDisplayMode|SDL_GetCurrentRenderOutputSize|SDL_GetCurrentTime|SDL_GetDXGIOutputInfo|SDL_GetDateTimeLocalePreferences|SDL_GetDisplayBounds|SDL_GetDisplayUsableBounds|SDL_GetGDKDefaultUser|SDL_GetGDKTaskQueue|SDL_GetGamepadSensorData|SDL_GetGamepadTouchpadFinger|SDL_GetHapticEffectStatus|SDL_GetJoystickBall|SDL_GetMasksForPixelFormat|SDL_GetPathInfo|SDL_GetRectUnion|SDL_GetRectUnionFloat|SDL_GetRenderClipRect|SDL_GetRenderColorScale|SDL_GetRenderDrawBlendMode|SDL_GetRenderDrawColor|SDL_GetRenderDrawColorFloat|SDL_GetRenderLogicalPresentation|SDL_GetRenderLogicalPresentationRect|SDL_GetRenderOutputSize|SDL_GetRenderSafeArea|SDL_GetRenderScale|SDL_GetRenderVSync|SDL_GetRenderViewport|SDL_GetSensorData|SDL_GetStorageFileSize|SDL_GetStoragePathInfo|SDL_GetSurfaceAlphaMod|SDL_GetSurfaceBlendMode|SDL_GetSurfaceClipRect|SDL_GetSurfaceColorKey|SDL_GetSurfaceColorMod|SDL_GetTextInputArea|SDL_GetTextureAlphaMod|SDL_GetTextureAlphaModFloat|SDL_GetTextureBlendMode|SDL_GetTextureColorMod|SDL_GetTextureColorModFloat|SDL_GetTextureScaleMode|SDL_GetTextureSize|SDL_GetWindowAspectRatio|SDL_GetWindowBordersSize|SDL_GetWindowMaximumSize|SDL_GetWindowMinimumSize|SDL_GetWindowPosition|SDL_GetWindowRelativeMouseMode|SDL_GetWindowSafeArea|SDL_GetWindowSize|SDL_GetWindowSizeInPixels|SDL_GetWindowSurfaceVSync|SDL_HideCursor|SDL_HideWindow|SDL_Init|SDL_InitHapticRumble|SDL_InitSubSystem|SDL_LoadWAV|SDL_LoadWAV_IO|SDL_LockAudioStream|SDL_LockProperties|SDL_LockSurface|SDL_LockTexture|SDL_LockTextureToSurface|SDL_MaximizeWindow|SDL_MinimizeWindow|SDL_MixAudio|SDL_OpenURL|SDL_OutOfMemory|SDL_PauseAudioDevice|SDL_PauseAudioStreamDevice|SDL_PauseHaptic|SDL_PlayHapticRumble|SDL_PremultiplyAlpha|SDL_PremultiplySurfaceAlpha|SDL_PushEvent|SDL_PutAudioStreamData|SDL_RaiseWindow|SDL_ReadStorageFile|SDL_ReadSurfacePixel|SDL_ReadSurfacePixelFloat|SDL_RegisterApp|SDL_ReloadGamepadMappings|SDL_RemovePath|SDL_RemoveStoragePath|SDL_RemoveTimer|SDL_RenamePath|SDL_RenameStoragePath|SDL_RenderClear|SDL_RenderCoordinatesFromWindow|SDL_RenderCoordinatesToWindow|SDL_RenderFillRect|SDL_RenderFillRects|SDL_RenderGeometry|SDL_RenderGeometryRaw|SDL_RenderLine|SDL_RenderLines|SDL_RenderPoint|SDL_RenderPoints|SDL_RenderPresent|SDL_RenderRect|SDL_RenderRects|SDL_RenderTexture|SDL_RenderTexture9Grid|SDL_RenderTextureRotated|SDL_RenderTextureTiled|SDL_RequestAndroidPermission|SDL_RestoreWindow|SDL_ResumeAudioDevice|SDL_ResumeAudioStreamDevice|SDL_ResumeHaptic|SDL_RumbleGamepad|SDL_RumbleGamepadTriggers|SDL_RumbleJoystick|SDL_RumbleJoystickTriggers|SDL_RunHapticEffect|SDL_SaveBMP|SDL_SaveBMP_IO|SDL_SendAndroidMessage|SDL_SendGamepadEffect|SDL_SendJoystickEffect|SDL_SendJoystickVirtualSensorData|SDL_SetAppMetadata|SDL_SetAppMetadataProperty|SDL_SetAudioDeviceGain|SDL_SetAudioPostmixCallback|SDL_SetAudioStreamFormat|SDL_SetAudioStreamFrequencyRatio|SDL_SetAudioStreamGain|SDL_SetAudioStreamGetCallback|SDL_SetAudioStreamInputChannelMap|SDL_SetAudioStreamOutputChannelMap|SDL_SetAudioStreamPutCallback|SDL_SetBooleanProperty|SDL_SetClipboardData|SDL_SetClipboardText|SDL_SetCursor|SDL_SetFloatProperty|SDL_SetGamepadLED|SDL_SetGamepadMapping|SDL_SetGamepadPlayerIndex|SDL_SetGamepadSensorEnabled|SDL_SetHapticAutocenter|SDL_SetHapticGain|SDL_SetJoystickLED|SDL_SetJoystickPlayerIndex|SDL_SetJoystickVirtualAxis|SDL_SetJoystickVirtualBall|SDL_SetJoystickVirtualButton|SDL_SetJoystickVirtualHat|SDL_SetJoystickVirtualTouchpad|SDL_SetLinuxThreadPriority|SDL_SetLinuxThreadPriorityAndPolicy|SDL_SetLogPriorityPrefix|SDL_SetMemoryFunctions|SDL_SetNumberProperty|SDL_SetPaletteColors|SDL_SetPointerProperty|SDL_SetPointerPropertyWithCleanup|SDL_SetPrimarySelectionText|SDL_SetRenderClipRect|SDL_SetRenderColorScale|SDL_SetRenderDrawBlendMode|SDL_SetRenderDrawColor|SDL_SetRenderDrawColorFloat|SDL_SetRenderLogicalPresentation|SDL_SetRenderScale|SDL_SetRenderTarget|SDL_SetRenderVSync|SDL_SetRenderViewport|SDL_SetScancodeName|SDL_SetStringProperty|SDL_SetSurfaceAlphaMod|SDL_SetSurfaceBlendMode|SDL_SetSurfaceColorKey|SDL_SetSurfaceColorMod|SDL_SetSurfaceColorspace|SDL_SetSurfacePalette|SDL_SetSurfaceRLE|SDL_SetTLS|SDL_SetTextInputArea|SDL_SetTextureAlphaMod|SDL_SetTextureAlphaModFloat|SDL_SetTextureBlendMode|SDL_SetTextureColorMod|SDL_SetTextureColorModFloat|SDL_SetTextureScaleMode|SDL_SetThreadPriority|SDL_SetWindowAlwaysOnTop|SDL_SetWindowAspectRatio|SDL_SetWindowBordered|SDL_SetWindowFocusable|SDL_SetWindowFullscreen|SDL_SetWindowFullscreenMode|SDL_SetWindowHitTest|SDL_SetWindowIcon|SDL_SetWindowKeyboardGrab|SDL_SetWindowMaximumSize|SDL_SetWindowMinimumSize|SDL_SetWindowModalFor|SDL_SetWindowMouseGrab|SDL_SetWindowMouseRect|SDL_SetWindowOpacity|SDL_SetWindowPosition|SDL_SetWindowRelativeMouseMode|SDL_SetWindowResizable|SDL_SetWindowShape|SDL_SetWindowSize|SDL_SetWindowSurfaceVSync|SDL_SetWindowTitle|SDL_SetiOSAnimationCallback|SDL_ShowAndroidToast|SDL_ShowCursor|SDL_ShowMessageBox|SDL_ShowSimpleMessageBox|SDL_ShowWindow|SDL_ShowWindowSystemMenu|SDL_StartTextInput|SDL_StartTextInputWithProperties|SDL_StopHapticEffect|SDL_StopHapticEffects|SDL_StopHapticRumble|SDL_StopTextInput|SDL_SyncWindow|SDL_TimeToDateTime|SDL_TryLockMutex|SDL_TryLockRWLockForReading|SDL_TryLockRWLockForWriting|SDL_TryWaitSemaphore|SDL_UnlockAudioStream|SDL_UpdateHapticEffect|SDL_UpdateNVTexture|SDL_UpdateTexture|SDL_UpdateWindowSurface|SDL_UpdateWindowSurfaceRects|SDL_UpdateYUVTexture|SDL_Vulkan_CreateSurface|SDL_Vulkan_LoadLibrary|SDL_WaitConditionTimeout|SDL_WaitSemaphoreTimeout|SDL_WarpMouseGlobal|SDL_WriteStorageFile|SDL_WriteSurfacePixel|SDL_WriteSurfacePixelFloat)$"; @@ ( func( ... ) - == 0 | - func( + !func( ... ) - < 0 | - func( + !func( ... ) - != 0 | - func( + !func( ... ) - == -1 )
This commit is contained in:
Sam Lantinga
@@ -47,7 +47,7 @@ char *SDL_SYS_GetBasePath(void)
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{
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DWORD buflen = 128;
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WCHAR *path = NULL;
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char *retval = NULL;
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char *result = NULL;
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DWORD len = 0;
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int i;
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@@ -86,10 +86,10 @@ char *SDL_SYS_GetBasePath(void)
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SDL_assert(i > 0); // Should have been an absolute path.
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path[i + 1] = '\0'; // chop off filename.
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retval = WIN_StringToUTF8W(path);
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result = WIN_StringToUTF8W(path);
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SDL_free(path);
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return retval;
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return result;
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}
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char *SDL_SYS_GetPrefPath(const char *org, const char *app)
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@@ -103,7 +103,7 @@ char *SDL_SYS_GetPrefPath(const char *org, const char *app)
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*/
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WCHAR path[MAX_PATH];
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char *retval = NULL;
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char *result = NULL;
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WCHAR *worg = NULL;
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WCHAR *wapp = NULL;
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size_t new_wpath_len = 0;
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@@ -171,9 +171,9 @@ char *SDL_SYS_GetPrefPath(const char *org, const char *app)
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SDL_wcslcat(path, L"\\", SDL_arraysize(path));
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retval = WIN_StringToUTF8W(path);
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result = WIN_StringToUTF8W(path);
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return retval;
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return result;
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}
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char *SDL_SYS_GetUserFolder(SDL_Folder folder)
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@@ -181,7 +181,7 @@ char *SDL_SYS_GetUserFolder(SDL_Folder folder)
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typedef HRESULT (WINAPI *pfnSHGetKnownFolderPath)(REFGUID /* REFKNOWNFOLDERID */, DWORD, HANDLE, PWSTR*);
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HMODULE lib = LoadLibrary(L"Shell32.dll");
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pfnSHGetKnownFolderPath pSHGetKnownFolderPath = NULL;
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char *retval = NULL;
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char *result = NULL;
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if (lib) {
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pSHGetKnownFolderPath = (pfnSHGetKnownFolderPath)GetProcAddress(lib, "SHGetKnownFolderPath");
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@@ -189,7 +189,7 @@ char *SDL_SYS_GetUserFolder(SDL_Folder folder)
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if (pSHGetKnownFolderPath) {
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GUID type; // KNOWNFOLDERID
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HRESULT result;
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HRESULT hr;
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wchar_t *path;
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switch (folder) {
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@@ -242,16 +242,16 @@ char *SDL_SYS_GetUserFolder(SDL_Folder folder)
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goto done;
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};
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result = pSHGetKnownFolderPath(&type, 0x00008000 /* KF_FLAG_CREATE */, NULL, &path);
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if (SUCCEEDED(result)) {
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retval = WIN_StringToUTF8W(path);
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hr = pSHGetKnownFolderPath(&type, 0x00008000 /* KF_FLAG_CREATE */, NULL, &path);
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if (SUCCEEDED(hr)) {
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result = WIN_StringToUTF8W(path);
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} else {
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WIN_SetErrorFromHRESULT("Couldn't get folder", result);
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WIN_SetErrorFromHRESULT("Couldn't get folder", hr);
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}
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} else {
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int type;
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HRESULT result;
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HRESULT hr;
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wchar_t path[MAX_PATH];
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switch (folder) {
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@@ -309,38 +309,38 @@ char *SDL_SYS_GetUserFolder(SDL_Folder folder)
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#if 0
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// Apparently the oldest, but not supported in modern Windows
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HRESULT result = SHGetSpecialFolderPath(NULL, path, type, TRUE);
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HRESULT hr = SHGetSpecialFolderPath(NULL, path, type, TRUE);
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#endif
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/* Windows 2000/XP and later, deprecated as of Windows 10 (still
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available), available in Wine (tested 6.0.3) */
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result = SHGetFolderPathW(NULL, type, NULL, SHGFP_TYPE_CURRENT, path);
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hr = SHGetFolderPathW(NULL, type, NULL, SHGFP_TYPE_CURRENT, path);
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// use `== TRUE` for SHGetSpecialFolderPath
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if (SUCCEEDED(result)) {
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retval = WIN_StringToUTF8W(path);
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if (SUCCEEDED(hr)) {
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result = WIN_StringToUTF8W(path);
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} else {
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WIN_SetErrorFromHRESULT("Couldn't get folder", result);
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WIN_SetErrorFromHRESULT("Couldn't get folder", hr);
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}
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}
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if (retval) {
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char *newretval = (char *) SDL_realloc(retval, SDL_strlen(retval) + 2);
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if (result) {
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char *newresult = (char *) SDL_realloc(result, SDL_strlen(result) + 2);
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if (!newretval) {
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SDL_free(retval);
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retval = NULL; // will be returned
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if (!newresult) {
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SDL_free(result);
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result = NULL; // will be returned
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goto done;
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}
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retval = newretval;
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SDL_strlcat(retval, "\\", SDL_strlen(retval) + 2);
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result = newresult;
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SDL_strlcat(result, "\\", SDL_strlen(result) + 2);
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}
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done:
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if (lib) {
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FreeLibrary(lib);
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}
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return retval;
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return result;
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}
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#endif // SDL_FILESYSTEM_WINDOWS
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@@ -31,14 +31,14 @@
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int SDL_SYS_EnumerateDirectory(const char *path, const char *dirname, SDL_EnumerateDirectoryCallback cb, void *userdata)
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{
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int retval = 1;
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int result = 1;
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if (*path == '\0') { // if empty (completely at the root), we need to enumerate drive letters.
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const DWORD drives = GetLogicalDrives();
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char name[3] = { 0, ':', '\0' };
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for (int i = 'A'; (retval == 1) && (i <= 'Z'); i++) {
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for (int i = 'A'; (result == 1) && (i <= 'Z'); i++) {
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if (drives & (1 << (i - 'A'))) {
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name[0] = (char) i;
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retval = cb(userdata, dirname, name);
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result = cb(userdata, dirname, name);
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}
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}
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} else {
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@@ -63,7 +63,8 @@ int SDL_SYS_EnumerateDirectory(const char *path, const char *dirname, SDL_Enumer
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HANDLE dir = FindFirstFileExW(wpattern, FindExInfoStandard, &entw, FindExSearchNameMatch, NULL, 0);
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SDL_free(wpattern);
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if (dir == INVALID_HANDLE_VALUE) {
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return WIN_SetError("Failed to enumerate directory");
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WIN_SetError("Failed to enumerate directory");
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return -1;
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}
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do {
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@@ -77,31 +78,31 @@ int SDL_SYS_EnumerateDirectory(const char *path, const char *dirname, SDL_Enumer
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char *utf8fn = WIN_StringToUTF8W(fn);
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if (!utf8fn) {
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retval = -1;
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result = -1;
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} else {
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retval = cb(userdata, dirname, utf8fn);
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result = cb(userdata, dirname, utf8fn);
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SDL_free(utf8fn);
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}
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} while ((retval == 1) && (FindNextFileW(dir, &entw) != 0));
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} while ((result == 1) && (FindNextFileW(dir, &entw) != 0));
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FindClose(dir);
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}
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return retval;
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return result;
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}
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int SDL_SYS_RemovePath(const char *path)
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bool SDL_SYS_RemovePath(const char *path)
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{
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WCHAR *wpath = WIN_UTF8ToStringW(path);
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if (!wpath) {
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return -1;
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return false;
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}
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WIN32_FILE_ATTRIBUTE_DATA info;
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if (!GetFileAttributesExW(wpath, GetFileExInfoStandard, &info)) {
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if (GetLastError() == ERROR_FILE_NOT_FOUND) {
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// Note that ERROR_PATH_NOT_FOUND means a parent dir is missing, and we consider that an error.
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return 0; // thing is already gone, call it a success.
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return true; // thing is already gone, call it a success.
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}
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return WIN_SetError("Couldn't get path's attributes");
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}
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@@ -109,64 +110,76 @@ int SDL_SYS_RemovePath(const char *path)
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const int isdir = (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
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const BOOL rc = isdir ? RemoveDirectoryW(wpath) : DeleteFileW(wpath);
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SDL_free(wpath);
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return !rc ? WIN_SetError("Couldn't remove path") : 0;
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if (!rc) {
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return WIN_SetError("Couldn't remove path");
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}
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return true;
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}
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int SDL_SYS_RenamePath(const char *oldpath, const char *newpath)
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bool SDL_SYS_RenamePath(const char *oldpath, const char *newpath)
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{
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WCHAR *woldpath = WIN_UTF8ToStringW(oldpath);
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if (!woldpath) {
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return -1;
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return false;
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}
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WCHAR *wnewpath = WIN_UTF8ToStringW(newpath);
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if (!wnewpath) {
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SDL_free(woldpath);
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return -1;
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return false;
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}
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const BOOL rc = MoveFileExW(woldpath, wnewpath, MOVEFILE_REPLACE_EXISTING);
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SDL_free(wnewpath);
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SDL_free(woldpath);
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return !rc ? WIN_SetError("Couldn't rename path") : 0;
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if (!rc) {
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return WIN_SetError("Couldn't rename path");
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}
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return true;
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}
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int SDL_SYS_CopyFile(const char *oldpath, const char *newpath)
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bool SDL_SYS_CopyFile(const char *oldpath, const char *newpath)
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{
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WCHAR *woldpath = WIN_UTF8ToStringW(oldpath);
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if (!woldpath) {
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return -1;
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return false;
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}
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WCHAR *wnewpath = WIN_UTF8ToStringW(newpath);
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if (!wnewpath) {
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SDL_free(woldpath);
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return -1;
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return false;
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}
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const BOOL rc = CopyFileW(woldpath, wnewpath, TRUE);
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SDL_free(wnewpath);
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SDL_free(woldpath);
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return !rc ? WIN_SetError("Couldn't copy path") : 0;
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if (!rc) {
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return WIN_SetError("Couldn't copy path");
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}
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return true;
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}
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int SDL_SYS_CreateDirectory(const char *path)
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bool SDL_SYS_CreateDirectory(const char *path)
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{
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WCHAR *wpath = WIN_UTF8ToStringW(path);
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if (!wpath) {
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return -1;
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return false;
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}
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const DWORD rc = CreateDirectoryW(wpath, NULL);
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SDL_free(wpath);
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return !rc ? WIN_SetError("Couldn't create directory") : 0;
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if (!rc) {
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return WIN_SetError("Couldn't create directory");
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}
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return true;
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}
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int SDL_SYS_GetPathInfo(const char *path, SDL_PathInfo *info)
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bool SDL_SYS_GetPathInfo(const char *path, SDL_PathInfo *info)
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{
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WCHAR *wpath = WIN_UTF8ToStringW(path);
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if (!wpath) {
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return -1;
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return false;
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}
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WIN32_FILE_ATTRIBUTE_DATA winstat;
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@@ -191,7 +204,7 @@ int SDL_SYS_GetPathInfo(const char *path, SDL_PathInfo *info)
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info->modify_time = SDL_TimeFromWindows(winstat.ftLastWriteTime.dwLowDateTime, winstat.ftLastWriteTime.dwHighDateTime);
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info->access_time = SDL_TimeFromWindows(winstat.ftLastAccessTime.dwLowDateTime, winstat.ftLastAccessTime.dwHighDateTime);
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return 0;
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return true;
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}
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#endif // SDL_FSOPS_WINDOWS
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