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/*
* Copyright (c) 2009-2016, Albertas Vyšniauskas
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
* * Neither the name of the software author nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "FileFormat.h"
#include "ColorObject.h"
#include "ColorList.h"
#include "DynvHelpers.h"
#include "Endian.h"
#include "dynv/DynvSystem.h"
#include "dynv/DynvMemoryIO.h"
#include <string.h>
#include <iostream>
#include <fstream>
#include <list>
#include <algorithm>
using namespace std;
struct ChunkHeader{
char type[16];
uint64_t size;
};
#define CHUNK_TYPE_VERSION "GPA version"
#define CHUNK_TYPE_HANDLER_MAP "handler_map"
#define CHUNK_TYPE_COLOR_LIST "color_list"
#define CHUNK_TYPE_COLOR_POSITIONS "color_positions"
#define CHUNK_TYPE_COLOR_ACTIONS "color_actions"
static int prepare_chunk_header(struct ChunkHeader* header, const char* type, uint64_t size)
{
size_t len = strlen(type);
if (len >= sizeof(header->type))
len = sizeof(header->type) - 1;
memcpy(header->type, type, len);
memset(header->type+len, 0, sizeof(header->type) - len);
header->size = UINT64_TO_LE(size);
return 0;
}
static int check_chunk_header(struct ChunkHeader* header)
{
if (header->type[sizeof(header->type)-1] != 0) return -1;
return 0;
}
static bool color_object_position_sort(ColorObject* x, ColorObject* y)
{
return x->getPosition() < y->getPosition();
}
int palette_file_load(const char* filename, ColorList* color_list)
{
ifstream file(filename, ios::binary);
if (file.is_open()){
struct dynvIO* mem_io = dynv_io_memory_new();
struct ChunkHeader header;
file.read((char*) &header, sizeof(header));
if (file.fail()){
file.close();
dynv_io_free(mem_io);
return -1;
}
struct dynvHandlerMap* handler_map = dynv_system_get_handler_map(color_list->params);
dynvHandlerMap::HandlerVec handler_vec;
list<ColorObject*> color_objects;
while (check_chunk_header(&header) == 0){
if (strncmp(CHUNK_TYPE_HANDLER_MAP, header.type, sizeof(header.type)) == 0){
dynv_io_memory_prepare_size(mem_io, header.size);
file.read((char*) dynv_io_memory_get_buffer(mem_io), header.size);
handler_vec.clear();
dynv_handler_map_deserialize(handler_map, mem_io, handler_vec);
}else if (strncmp(CHUNK_TYPE_COLOR_LIST, header.type, sizeof(header.type)) == 0){
dynv_io_memory_prepare_size(mem_io, header.size);
file.read((char*) dynv_io_memory_get_buffer(mem_io), header.size);
for (;;){
dynvSystem *params = dynv_system_create(handler_map);
if (dynv_system_deserialize(params, handler_vec, mem_io) == 0){
auto color_object = new ColorObject();
color_object->setName(dynv_get_string_wd(params, "name", ""));
Color *color = dynv_get_color_wdc(params, "color", nullptr);
if (color != nullptr)
color_object->setColor(*color);
color_objects.push_back(color_object);
}else{
dynv_system_release(params);
break;
}
dynv_system_release(params);
}
}else if (strncmp(CHUNK_TYPE_COLOR_POSITIONS, header.type, sizeof(header.type)) == 0){
dynv_io_memory_prepare_size(mem_io, header.size);
file.read((char*) dynv_io_memory_get_buffer(mem_io), header.size);
uint32_t index, read;
for (list<ColorObject*>::iterator i=color_objects.begin(); i != color_objects.end(); ++i){
if (dynv_io_read(mem_io, &index, sizeof(uint32_t), &read) == 0){
if (read != sizeof(uint32_t)) break;
(*i)->setPosition(index);
}
}
color_objects.sort(color_object_position_sort);
for (list<ColorObject*>::iterator i=color_objects.begin(); i != color_objects.end(); ++i){
bool visible = (*i)->getPosition() != ~(size_t)0;
(*i)->setVisible(visible);
color_list_add_color_object(color_list, *i, visible);
(*i)->release();
}
}else if (strncmp(CHUNK_TYPE_VERSION, header.type, sizeof(header.type)) == 0){
dynv_io_memory_prepare_size(mem_io, header.size);
file.read((char*) dynv_io_memory_get_buffer(mem_io), header.size);
uint32_t read;
uint32_t version;
if (dynv_io_read(mem_io, &version, sizeof(uint32_t), &read) == 0){
version=UINT32_FROM_LE(version);
}
}else{
file.seekg(header.size, ios_base::cur);
if (file.fail() || file.eof())
break;
}
file.read((char*) &header, sizeof(header));
if (file.fail())
break;
}
dynv_handler_map_release(handler_map);
dynv_io_free(mem_io);
file.close();
return 0;
}
return -1;
}
int palette_file_save(const char* filename, ColorList* color_list)
{
if (!filename || !color_list) return -1;
ofstream file(filename, ios::binary);
if (file.is_open()){
struct dynvIO* mem_io=dynv_io_memory_new();
char* data;
uint32_t size;
ofstream::pos_type end_pos;
struct ChunkHeader header;
prepare_chunk_header(&header, CHUNK_TYPE_VERSION, 4);
file.write((char*)&header, sizeof(header));
uint32_t version=1*0x10000+0;
version=UINT32_TO_LE(version);
file.write((char*)&version, sizeof(uint32_t));
ofstream::pos_type handler_map_pos = file.tellp();
file.write((char*)&header, sizeof(header));
struct dynvHandlerMap* handler_map = dynv_system_get_handler_map(color_list->params);
dynv_handler_map_serialize(handler_map, mem_io);
dynv_io_memory_get_data(mem_io, &data, &size);
file.write(data, size);
dynv_io_reset(mem_io);
end_pos = file.tellp();
file.seekp(handler_map_pos);
prepare_chunk_header(&header, CHUNK_TYPE_HANDLER_MAP, end_pos-handler_map_pos-sizeof(struct ChunkHeader));
file.write((char*)&header, sizeof(header));
file.seekp(end_pos);
ofstream::pos_type colorlist_pos = file.tellp();
file.write((char*)&header, sizeof(header));
for (auto color_object: color_list->colors){
dynvSystem *params = dynv_system_create(handler_map);
dynv_set_string(params, "name", color_object->getName().c_str());
dynv_set_color(params, "color", &color_object->getColor());
dynv_system_serialize(params, mem_io);
dynv_system_release(params);
dynv_io_memory_get_data(mem_io, &data, &size);
file.write(data, size);
dynv_io_reset(mem_io);
}
dynv_handler_map_release(handler_map);
dynv_io_free(mem_io);
end_pos = file.tellp();
file.seekp(colorlist_pos);
prepare_chunk_header(&header, CHUNK_TYPE_COLOR_LIST, end_pos-colorlist_pos-sizeof(struct ChunkHeader));
file.write((char*)&header, sizeof(header));
file.seekp(end_pos);
color_list_get_positions(color_list);
uint32_t *positions=new uint32_t [color_list->colors.size()];
uint32_t *position=positions;
for (ColorList::iter i=color_list->colors.begin(); i != color_list->colors.end(); ++i){
*position = UINT32_TO_LE((*i)->getPosition());
++position;
}
prepare_chunk_header(&header, CHUNK_TYPE_COLOR_POSITIONS, color_list->colors.size()*sizeof(uint32_t));
file.write((char*)&header, sizeof(header));
file.write((char*)positions, color_list->colors.size()*sizeof(uint32_t));
delete [] positions;
file.close();
return 0;
}
return -1;
}
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