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/*
* image_file_handle.cpp - Image file handle
*
* Copyright (c) 2016 Intel Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Author: Wind Yuan <[email protected]>
* Author: Yinhang Liu <[email protected]>
*/
#include "image_file_handle.h"
namespace XCam {
ImageFileHandle::~ImageFileHandle ()
{
close ();
}
XCamReturn
ImageFileHandle::open (const char *name, const char *option)
{
XCAM_ASSERT (name);
if (!name)
return XCAM_RETURN_ERROR_FILE;
close ();
XCAM_ASSERT (!_file_name && !_fp);
_fp = fopen (name, option);
if (!_fp)
return XCAM_RETURN_ERROR_FILE;
_file_name = strndup (name, 512);
return XCAM_RETURN_NO_ERROR;
}
XCamReturn
ImageFileHandle::close ()
{
if (_fp) {
fclose (_fp);
_fp = NULL;
}
if (_file_name) {
xcam_free (_file_name);
_file_name = NULL;
}
return XCAM_RETURN_NO_ERROR;
}
XCamReturn
ImageFileHandle::rewind ()
{
if (!is_valid ())
return XCAM_RETURN_ERROR_FILE;
return (fseek(_fp, 0L, SEEK_SET) == 0) ? XCAM_RETURN_NO_ERROR : XCAM_RETURN_ERROR_FILE;
}
bool
ImageFileHandle::end_of_file()
{
if (!is_valid ())
return true; // maybe false?
return feof (_fp);
}
XCamReturn
ImageFileHandle::read_buf (const SmartPtr<BufferProxy> &buf)
{
const VideoBufferInfo info = buf->get_video_info ();
VideoBufferPlanarInfo planar;
uint8_t *memory = NULL;
XCamReturn ret = XCAM_RETURN_NO_ERROR;
XCAM_ASSERT (is_valid ());
memory = buf->map ();
for (uint32_t index = 0; index < info.components; index++) {
info.get_planar_info (planar, index);
uint32_t line_bytes = planar.width * planar.pixel_bytes;
for (uint32_t i = 0; i < planar.height; i++) {
if (fread (memory + info.offsets [index] + i * info.strides [index], 1, line_bytes, _fp) != line_bytes) {
if (end_of_file ())
ret = XCAM_RETURN_BYPASS;
else {
XCAM_LOG_ERROR ("read file failed, size doesn't match");
ret = XCAM_RETURN_ERROR_FILE;
}
}
}
}
buf->unmap ();
return ret;
}
XCamReturn
ImageFileHandle::write_buf (const SmartPtr<BufferProxy> buf)
{
const VideoBufferInfo info = buf->get_video_info ();
VideoBufferPlanarInfo planar;
uint8_t *memory = NULL;
XCamReturn ret = XCAM_RETURN_NO_ERROR;
XCAM_ASSERT (is_valid ());
memory = buf->map ();
for (uint32_t index = 0; index < info.components; index++) {
info.get_planar_info (planar, index);
uint32_t line_bytes = planar.width * planar.pixel_bytes;
for (uint32_t i = 0; i < planar.height; i++) {
if (fwrite (memory + info.offsets [index] + i * info.strides [index], 1, line_bytes, _fp) != line_bytes) {
XCAM_LOG_ERROR ("read file failed, size doesn't match");
ret = XCAM_RETURN_ERROR_FILE;
}
}
}
buf->unmap ();
return ret;
}
}