Replace NativeFile to use SDL IO functions.

Also remove Android-specific code from it as SDL is now able to handle them.

CMakeLists.txt

@@ -482,11 +482,9 @@ add_library(love_filesystem_physfs STATIC
 	src/modules/filesystem/physfs/PhysfsIo.h
 	src/modules/filesystem/physfs/PhysfsIo.cpp
 )
-if(ANDROID)
-	target_link_libraries(love_filesystem_physfs PUBLIC
-		lovedep::SDL
-	)
-endif()
+target_link_libraries(love_filesystem_physfs PUBLIC
+	lovedep::SDL
+)
 
 add_library(love_filesystem INTERFACE)
 target_link_libraries(love_filesystem INTERFACE
@@ -1962,7 +1960,7 @@ love_group_projects(NAME "liblove" NESTED TARGETS ${LIBLOVE_DEPENDENCIES})
 love_group_projects(NAME "liblove/libraries" NESTED TARGETS ${LIBLOVE_LIBRARIES})
 love_group_projects(NAME "liblove" TARGETS liblove ${LOVE_EXTRA_DEPENDECIES})
 
-love_group_projects(NAME "lovedep" TARGETS lovedep::SDL3 lovedep::Freetype lovedep::Harfbuzz lovedep::OpenAL lovedep::Modplug lovedep::Theora lovedep::Vorbis lovedep::Ogg lovedep::Zlib lovedep::Lua)
+love_group_projects(NAME "lovedep" TARGETS lovedep::SDL lovedep::Freetype lovedep::Harfbuzz lovedep::OpenAL lovedep::Modplug lovedep::Theora lovedep::Vorbis lovedep::Ogg lovedep::Zlib lovedep::Lua)
 love_group_projects(NAME "lovedep" TARGETS lua51 alcommon al-excommon harfbuzz-subset zlib)
 
 

src/modules/filesystem/NativeFile.cpp

@@ -42,22 +42,22 @@ namespace filesystem
 {
 
 NativeFile::NativeFile(const std::string &filename, Mode mode)
-	: filename(filename)
-	, file(nullptr)
-	, mode(MODE_CLOSED)
-	, bufferMode(BUFFER_NONE)
-	, bufferSize(0)
+: filename(filename)
+, file(nullptr)
+, mode(MODE_CLOSED)
+, bufferMode(BUFFER_NONE)
+, bufferSize(0)
 {
 	if (!open(mode))
 		throw love::Exception("Could not open file at path %s", filename.c_str());
 }
 
 NativeFile::NativeFile(const NativeFile &other)
-	: filename(other.filename)
-	, file(nullptr)
-	, mode(MODE_CLOSED)
-	, bufferMode(other.bufferMode)
-	, bufferSize(other.bufferSize)
+: filename(other.filename)
+, file(nullptr)
+, mode(MODE_CLOSED)
+, bufferMode(other.bufferMode)
+, bufferSize(other.bufferSize)
 {
 	if (!open(other.mode))
 		throw love::Exception("Could not open file at path %s", filename.c_str());
@@ -86,49 +86,23 @@ bool NativeFile::open(Mode newmode)
 	if (file != nullptr)
 		return false;
 
-#if defined(LOVE_ANDROID)
-	// Try to handle content:// URI
-	int fd = love::android::getFDFromContentProtocol(filename.c_str());
-	if (fd != -1)
+	file = SDL_IOFromFile(filename.c_str(), getModeString(newmode));
+	if (file == nullptr)
 	{
-		if (newmode != MODE_READ)
-		{
-			::close(fd);
-			throw love::Exception("%s is read-only.", filename.c_str());
-		}
+		std::string err = SDL_GetError();
 
-		file = fdopen(fd, "rb");
+		if (err != "")
+			throw love::Exception("Could not open file %s: %s", filename.c_str(), err.c_str());
 	}
 	else
-		file = fopen(filename.c_str(), getModeString(newmode));
-#elif defined(LOVE_WINDOWS)
-	// make sure non-ASCII filenames work.
-	std::wstring modestr = to_widestr(getModeString(newmode));
-	std::wstring wfilename = to_widestr(filename);
-
-	file = _wfopen(wfilename.c_str(), modestr.c_str());
-#else
-	file = fopen(filename.c_str(), getModeString(newmode));
-#endif
-
-	if (newmode == MODE_READ && file == nullptr)
-		throw love::Exception("Could not open file %s. Does not exist.", filename.c_str());
-
-	mode = newmode;
-
-	if (file != nullptr && !setBuffer(bufferMode, bufferSize))
-	{
-		// Revert to buffer defaults if we don't successfully set the buffer.
-		bufferMode = BUFFER_NONE;
-		bufferSize = 0;
-	}
+		mode = newmode;
 
 	return file != nullptr;
 }
 
 bool NativeFile::close()
 {
-	if (file == nullptr || fclose(file) != 0)
+	if (file == nullptr || !SDL_CloseIO(file))
 		return false;
 
 	mode = MODE_CLOSED;
@@ -144,44 +118,8 @@ bool NativeFile::isOpen() const
 
 int64 NativeFile::getSize()
 {
-	int fd = file ? fileno(file) : -1;
-
-#ifdef LOVE_WINDOWS
-	
-	struct _stat64 buf;
-
-	if (fd != -1)
-	{
-		if (_fstat64(fd, &buf) != 0)
-			return -1;
-	}
-	else
-	{
-		// make sure non-ASCII filenames work.
-		std::wstring wfilename = to_widestr(filename);
-
-		if (_wstat64(wfilename.c_str(), &buf) != 0)
-			return -1;
-	}
-
-	return (int64) buf.st_size;
-
-#else
-
-	// Assume POSIX support...
-	struct stat buf;
-
-	if (fd != -1)
-	{
-		if (fstat(fd, &buf) != 0)
-			return -1;
-	}
-	else if (stat(filename.c_str(), &buf) != 0)
-		return -1;
-
-	return (int64) buf.st_size;
-
-#endif
+	int64 size = SDL_GetIOSize(file);
+	return std::max(size, -1LL);
 }
 
 int64 NativeFile::read(void *dst, int64 size)
@@ -192,7 +130,7 @@ int64 NativeFile::read(void *dst, int64 size)
 	if (size < 0)
 		throw love::Exception("Invalid read size.");
 
-	size_t read = fread(dst, 1, (size_t) size, file);
+	size_t read = SDL_ReadIO(file, dst, (size_t) size);
 
 	return (int64) read;
 }
@@ -205,7 +143,7 @@ bool NativeFile::write(const void *data, int64 size)
 	if (size < 0)
 		throw love::Exception("Invalid write size.");
 
-	int64 written = (int64) fwrite(data, 1, (size_t) size, file);
+	int64 written = SDL_WriteIO(file, data, (size_t) size);
 
 	return written == size;
 }
@@ -215,7 +153,7 @@ bool NativeFile::flush()
 	if (!file || (mode != MODE_WRITE && mode != MODE_APPEND))
 		throw love::Exception("File is not opened for writing.");
 
-	return fflush(file) == 0;
+	return SDL_FlushIO(file);
 }
 
 bool NativeFile::isEOF()
@@ -228,11 +166,7 @@ int64 NativeFile::tell()
 	if (file == nullptr)
 		return -1;
 
-#ifdef LOVE_WINDOWS
-	return (int64) _ftelli64(file);
-#else
-	return (int64) ftello(file);
-#endif
+	return SDL_TellIO(file);
 }
 
 bool NativeFile::seek(int64 pos, SeekOrigin origin)
@@ -240,18 +174,13 @@ bool NativeFile::seek(int64 pos, SeekOrigin origin)
 	if (file == nullptr)
 		return false;
 
-	int forigin = SEEK_SET;
+	SDL_IOWhence whence = SDL_IO_SEEK_SET;
 	if (origin == SEEKORIGIN_CURRENT)
-		forigin = SEEK_CUR;
+		whence = SDL_IO_SEEK_CUR;
 	else if (origin == SEEKORIGIN_END)
-		forigin = SEEK_END;
+		whence = SDL_IO_SEEK_END;
 
-	// TODO
-#ifdef LOVE_WINDOWS
-	return _fseeki64(file, pos, forigin) == 0;
-#else
-	return fseeko(file, (off_t) pos, forigin) == 0;
-#endif
+	return SDL_SeekIO(file, pos, whence) >= 0;
 }
 
 bool NativeFile::setBuffer(BufferMode bufmode, int64 size)
@@ -262,32 +191,7 @@ bool NativeFile::setBuffer(BufferMode bufmode, int64 size)
 	if (bufmode == BUFFER_NONE)
 		size = 0;
 
-	// If the file isn't open, we'll make sure the buffer values are set in
-	// NativeFile::open.
-	if (!isOpen())
-	{
-		bufferMode = bufmode;
-		bufferSize = size;
-		return true;
-	}
-
-	int vbufmode;
-	switch (bufmode)
-	{
-	case File::BUFFER_NONE:
-	default:
-		vbufmode = _IONBF;
-		break;
-	case File::BUFFER_LINE:
-		vbufmode = _IOLBF;
-		break;
-	case File::BUFFER_FULL:
-		vbufmode = _IOFBF;
-		break;
-	}
-
-	if (setvbuf(file, nullptr, vbufmode, (size_t) size) != 0)
-		return false;
+	// FIXME: SDL doesn't have option to set buffering.
 
 	bufferMode = bufmode;
 	bufferSize = size;
@@ -323,6 +227,9 @@ const char *NativeFile::getModeString(Mode mode)
 	case File::MODE_WRITE:
 		return "wb";
 	case File::MODE_APPEND:
+		// Note: PhysFS "append" allows the user to
+		// seek the write pointer, but it's not possible
+		// to do so with standard fopen-style modes.
 		return "ab";
 	}
 }

src/modules/filesystem/NativeFile.h

@@ -25,6 +25,9 @@
 // C
 #include <cstdio>
 
+// SDL
+#include <SDL3/SDL_iostream.h>
+
 namespace love
 {
 namespace filesystem
@@ -69,7 +72,7 @@ private:
 
 	std::string filename;
 
-	FILE *file;
+	SDL_IOStream *file;
 
 	Mode mode;