tomato/src/image_loader_qoi.cpp
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improve windows debug conformity
2024-05-29 09:46:35 +02:00

92 lines
2.1 KiB
C++

#include "./image_loader_qoi.hpp"
#include <cstdint>
#include <qoi/qoi.h>
#include <iostream>
ImageLoaderQOI::ImageInfo ImageLoaderQOI::loadInfoFromMemory(const uint8_t* data, uint64_t data_size) {
ImageInfo res;
qoi_desc desc;
// TODO: only read the header
auto* ret = qoi_decode(data, data_size, &desc, 4);
if (ret == nullptr) {
return res;
}
free(ret);
res.width = desc.width;
res.height = desc.height;
//desc.colorspace;
return res;
}
ImageLoaderQOI::ImageResult ImageLoaderQOI::loadFromMemoryRGBA(const uint8_t* data, uint64_t data_size) {
ImageResult res;
qoi_desc desc;
uint8_t* img_data = static_cast<uint8_t*>(
qoi_decode(data, data_size, &desc, 4)
);
if (img_data == nullptr) {
// not readable
return res;
}
res.width = desc.width;
res.height = desc.height;
auto& new_frame = res.frames.emplace_back();
new_frame.ms = 0;
new_frame.data = {img_data, img_data+(desc.width*desc.height*4)};
free(img_data);
return res;
}
std::vector<uint8_t> ImageEncoderQOI::encodeToMemoryRGBA(const ImageResult& input_image, const std::map<std::string, float>&) {
if (input_image.frames.empty()) {
std::cerr << "IEQOI error: empty image\n";
return {};
}
if (input_image.frames.size() > 1) {
std::cerr << "IEQOI warning: image with animation, only first frame will be encoded!\n";
return {};
}
// TODO: look into RDO (eg https://github.com/richgel999/rdopng)
//int png_compression_level = 8;
//if (extra_options.count("png_compression_level")) {
//png_compression_level = extra_options.at("png_compression_level");
//}
qoi_desc desc;
desc.width = input_image.width;
desc.height = input_image.height;
desc.channels = 4;
desc.colorspace = QOI_SRGB; // TODO: decide
int out_len {0};
uint8_t* enc_data = static_cast<uint8_t*>(qoi_encode(
input_image.frames.front().data.data(),
&desc,
&out_len
));
if (enc_data == nullptr) {
std::cerr << "IEQOI error: qoi_encode failed!\n";
return {};
}
std::vector<uint8_t> new_data(enc_data, enc_data+out_len);
free(enc_data); // TODO: a streaming encoder would be better
return new_data;
}