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/*
* This file is part of RawTherapee.
*
* Copyright (c) 2019 Jean-Christophe FRISCH <natureh.510@gmail.com>
*
* RawTherapee is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* RawTherapee is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with RawTherapee. If not, see <https://www.gnu.org/licenses/>.
*/
#include "editbuffer.h"
#include "editcallbacks.h"
ObjectMOBuffer::ObjectMOBuffer(EditDataProvider *dataProvider) : objectMap(nullptr), objectMode(OM_255), dataProvider(dataProvider) {}
ObjectMOBuffer::~ObjectMOBuffer()
{
flush();
}
/* Upgrade or downgrade the objectModeType */
void ObjectMOBuffer::setObjectMode(ObjectMode newType)
{
if (!objectMap) {
objectMode = newType;
return;
}
int w = objectMap->get_width ();
int h = objectMap->get_height ();
if (w && h) {
switch (newType) {
case (OM_255):
if (objectMode==OM_65535) {
objectMap.clear();
objectMap = Cairo::ImageSurface::create(Cairo::FORMAT_A8, w, h);
}
break;
case (OM_65535):
if (objectMode==OM_255) {
objectMap.clear();
objectMap = Cairo::ImageSurface::create(Cairo::FORMAT_RGB16_565, w, h);
}
break;
}
}
objectMode = newType;
}
void ObjectMOBuffer::flush()
{
if (objectMap ) {
objectMap.clear();
}
}
EditSubscriber *ObjectMOBuffer::getEditSubscriber () {
if (dataProvider) {
return dataProvider->getCurrSubscriber();
} else {
return nullptr;
}
}
// Resize buffers if they already exist
void ObjectMOBuffer::resize(int newWidth, int newHeight)
{
if (!dataProvider) {
return;
}
if (const auto currSubscriber = dataProvider->getCurrSubscriber ()) {
if (currSubscriber->getEditingType() == ET_OBJECTS) {
if (objectMap && (objectMap->get_width() != newWidth || objectMap->get_height() != newHeight)) {
objectMap.clear();
}
if (!objectMap && newWidth>0 && newHeight>0) {
objectMap = Cairo::ImageSurface::create(objectMode==OM_255?Cairo::FORMAT_A8:Cairo::FORMAT_RGB16_565, newWidth, newHeight);
}
} else {
flush();
}
} else {
flush();
}
}
int ObjectMOBuffer::getObjectID(const rtengine::Coord& location)
{
int id = 0;
if (!objectMap || location.x < 0 || location.y < 0 || location.x >= objectMap->get_width() || location.y >= objectMap->get_height()) {
return -1;
}
if (objectMode == OM_255) {
// In OM_255 mode, size of pixel is 1 Byte (i.e. size of uint8_t)
memcpy(&id, ( objectMap->get_data() + location.y * objectMap->get_stride() + sizeof(std::uint8_t) * location.x ), sizeof(std::uint8_t));
} else {
// In OM_65535 mode, size of pixel is 2 Bytes (i.e. size of uint16_t)
memcpy(&id, ( objectMap->get_data() + location.y * objectMap->get_stride() + sizeof(std::uint16_t) * location.x ), sizeof(std::uint16_t));
}
return id - 1;
}
bool ObjectMOBuffer::bufferCreated()
{
EditSubscriber* subscriber;
if (dataProvider && (subscriber = dataProvider->getCurrSubscriber())) {
return subscriber->getEditingType() == ET_OBJECTS ? bool(objectMap) : false;
}
return false;
}
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