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//-----------------------------------------------------------------------------
// Name: palette.cpp
// Developer: Wolfire Games LLC
// Description:
// License: Read below
//-----------------------------------------------------------------------------
//
//
// Copyright 2022 Wolfire Games LLC
//
// 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.
//
//-----------------------------------------------------------------------------
#include "palette.h"
#include <Internal/memwrite.h>
#include <tinyxml.h>
void ReadPaletteFromRAM( OGPalette &palette, const std::vector<char> &data )
{
int index=0;
int num_colors;
memread(&num_colors, sizeof(int), 1, data, index);
palette.resize(num_colors);
for(int i=0; i<num_colors; ++i){
LabeledColor &lc = palette[i];
int str_len;
memread(&str_len, sizeof(int), 1, data, index);
lc.label.resize(str_len);
memread(&lc.label[0], sizeof(char), str_len, data, index);
memread(&lc.color, sizeof(vec3), 1, data, index);
memread(&lc.channel, sizeof(char), 1, data, index);
}
}
void WritePaletteToRAM( const OGPalette& palette, std::vector<char> &data )
{
int num_colors = palette.size();
memwrite(&num_colors, sizeof(int), 1, data);
for(int i=0; i<num_colors; ++i){
const LabeledColor &lc = palette[i];
int str_len = lc.label.size();
memwrite(&str_len, sizeof(int), 1, data);
memwrite(&lc.label[0], sizeof(char), str_len, data);
memwrite(&lc.color, sizeof(vec3), 1, data);
memwrite(&lc.channel, sizeof(char), 1, data);
}
}
void WritePaletteToXML( const OGPalette & palette, TiXmlElement* palette_el )
{
for(unsigned i=0; i<palette.size(); ++i){
TiXmlElement* color_el = new TiXmlElement("Color");
palette_el->LinkEndChild(color_el);
const std::string &label = palette[i].label;
const vec3 &color = palette[i].color;
const char& channel = palette[i].channel;
color_el->SetAttribute("label", label.c_str());
color_el->SetAttribute("channel", channel);
color_el->SetDoubleAttribute("red", color[0]);
color_el->SetDoubleAttribute("green", color[1]);
color_el->SetDoubleAttribute("blue", color[2]);
}
}
void ReadPaletteFromXML( OGPalette &palette, const TiXmlElement* palette_el )
{
const TiXmlElement* color_el = palette_el->FirstChildElement("Color");
while(color_el){
LabeledColor lc;
vec3 &color = lc.color;
std::string &label = lc.label;
char &channel = lc.channel;
color_el->QueryFloatAttribute("red", &color[0]);
color_el->QueryFloatAttribute("green", &color[1]);
color_el->QueryFloatAttribute("blue", &color[2]);
int channel_int;
color_el->QueryIntAttribute("channel", &channel_int);
channel = channel_int;
const char* c = color_el->Attribute("label");
if(c){
label = c;
}
if(!label.empty() && channel < max_palette_elements){
palette.push_back(lc);
}
color_el = color_el->NextSiblingElement();
}
}
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