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Added Android file reader.

This commit is contained in:
Branimir Karadžić 2017-07-24 21:04:24 -07:00
parent 5dd943c937
commit 93a2bbb6c6
1 changed files with 79 additions and 1 deletions
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80
examples/common/entry/entry_android.cpp
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@ -9,8 +9,8 @@
#include <bgfx/platform.h>
#include <stdio.h>
#include <bx/thread.h>
#include <bx/file.h>
#include <android/input.h>
#include <android/log.h>
@ -91,6 +91,84 @@ namespace entry
static int32_t threadFunc(void* _userData);
};
class FileReaderAndroid : public bx::FileReaderI
{
public:
FileReaderAndroid(AAssetManager* _assetManager, AAsset* _file)
: m_assetManager(_assetManager)
, m_file(_file)
, m_open(false)
{
}
virtual ~FileReaderAndroid()
{
close();
}
virtual bool open(const bx::FilePath& _filePath, bx::Error* _err) override
{
BX_CHECK(NULL != _err, "Reader/Writer interface calling functions must handle errors.");
if (NULL != m_file)
{
BX_ERROR_SET(_err, BX_ERROR_READERWRITER_ALREADY_OPEN, "FileReader: File is already open.");
return false;
}
m_file = AAssetManager_open(m_assetManager, _filePath.get(), AASSET_MODE_RANDOM);
if (NULL == m_file)
{
BX_ERROR_SET(_err, BX_ERROR_READERWRITER_OPEN, "FileReader: Failed to open file.");
return false;
}
m_open = true;
return true;
}
virtual void close() override
{
if (m_open
&& NULL != m_file)
{
AAsset_close(m_file);
m_file = NULL;
}
}
virtual int64_t seek(int64_t _offset, bx::Whence::Enum _whence) override
{
BX_CHECK(NULL != m_file, "Reader/Writer file is not open.");
return AAsset_seek64(m_file, _offset, _whence);
}
virtual int32_t read(void* _data, int32_t _size, bx::Error* _err) override
{
BX_CHECK(NULL != m_file, "Reader/Writer file is not open.");
BX_CHECK(NULL != _err, "Reader/Writer interface calling functions must handle errors.");
int32_t size = (int32_t)AAsset_read(m_file, _data, _size);
if (size != _size)
{
if (0 == AAsset_getRemainingLength(m_file) )
{
BX_ERROR_SET(_err, BX_ERROR_READERWRITER_EOF, "FileReader: EOF.");
}
return size >= 0 ? size : 0;
}
return size;
}
private:
AAssetManager* m_assetManager;
AAsset* m_file;
bool m_open;
};
struct Context
{
Context()