file_system.cpp

#include "file_system.h"
 
 
#ifdef __EMSCRIPTEN__
#include "platforms/wasm/fs_wasm.h"
#elif __has_include(<SD.h>)
// work in progress.
//#include "platforms/fs_sdcard_arduino.hpp"
#endif
 
#include "namespace.h"
 
 
FASTLED_NAMESPACE_BEGIN
 
// WEAK SYMBOL
// Override this if you want to supply a file system for your platform.
__attribute__((weak)) FsImplRef make_sdcard_filesystem(int cs_pin) {
    return FsImplRef::Null();
}
 
bool FileSystem::beginSd(int cs_pin) {
    mFs = make_sdcard_filesystem(cs_pin);
    if (!mFs) {
        return false;
    }
    mFs->begin();
    return true;
}
 
bool FileSystem::begin(FsImplRef platform_filesystem) {
    mFs = platform_filesystem;
    if (!mFs) {
        return false;
    }
    mFs->begin();
    return true;
}
 
size_t FileHandle::bytesLeft() const { return size() - pos(); }
 
FileSystem::FileSystem() : mFs() {}
 
 
void FileSystem::end() {
    if (mFs) {
        mFs->end();
    }
}
 
void FileSystem::close(FileHandleRef file) { mFs->close(file); }
 
FileHandleRef FileSystem::openRead(const char *path) { return mFs->openRead(path); }
Video FileSystem::openVideo(const char *path, size_t pixelsPerFrame, float fps, size_t nFrameHistory) {
    Video video;
    FileHandleRef file = openRead(path);
    if (!file) {
        return video;
    }
    video.begin(file, pixelsPerFrame, fps, nFrameHistory);
    return video;
}
 
FASTLED_NAMESPACE_END