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/*
* Copyright (c) 2023 Lain Bailey <lain@obsproject.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "darray.h"
#include "array-serializer.h"
static size_t array_output_write(void *param, const void *data, size_t size)
{
struct array_output_data *output = param;
if (output->cur_pos < output->bytes.num) {
size_t new_size = output->cur_pos + size;
if (new_size > output->bytes.num) {
darray_ensure_capacity(sizeof(uint8_t),
&output->bytes.da, new_size);
output->bytes.num = new_size;
}
memcpy(output->bytes.array + output->cur_pos, data, size);
output->cur_pos += size;
} else {
da_push_back_array(output->bytes, (uint8_t *)data, size);
output->cur_pos += size;
}
return size;
}
static int64_t array_output_get_pos(void *param)
{
struct array_output_data *data = param;
return (int64_t)data->bytes.num;
}
static int64_t array_output_seek(void *param, int64_t offset,
enum serialize_seek_type seek_type)
{
struct array_output_data *output = param;
size_t new_pos = 0;
switch (seek_type) {
case SERIALIZE_SEEK_START:
new_pos = offset;
break;
case SERIALIZE_SEEK_CURRENT:
new_pos = output->cur_pos + offset;
break;
case SERIALIZE_SEEK_END:
new_pos = output->bytes.num - offset;
break;
}
if (new_pos > output->bytes.num)
return -1;
output->cur_pos = new_pos;
return (int64_t)new_pos;
}
void array_output_serializer_init(struct serializer *s,
struct array_output_data *data)
{
memset(s, 0, sizeof(struct serializer));
memset(data, 0, sizeof(struct array_output_data));
s->data = data;
s->write = array_output_write;
s->get_pos = array_output_get_pos;
s->seek = array_output_seek;
}
void array_output_serializer_free(struct array_output_data *data)
{
da_free(data->bytes);
}
void array_output_serializer_reset(struct array_output_data *data)
{
da_clear(data->bytes);
data->cur_pos = 0;
}
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