tomato-testing/src/message_image_loader.cpp

83 lines
2.1 KiB
C++

#include "./message_image_loader.hpp"
#include "./image_loader_sdl_bmp.hpp"
#include "./image_loader_stb.hpp"
#include "./image_loader_webp.hpp"
#include "./media_meta_info_loader.hpp"
#include <solanaceae/message3/components.hpp>
#include <iostream>
#include <fstream>
#include <cassert>
#include <vector>
// fwd
namespace Message {
uint64_t getTimeMS(void);
}
MessageImageLoader::MessageImageLoader(void) {
_image_loaders.push_back(std::make_unique<ImageLoaderSDLBMP>());
_image_loaders.push_back(std::make_unique<ImageLoaderWebP>());
_image_loaders.push_back(std::make_unique<ImageLoaderSTB>());
}
std::optional<TextureEntry> MessageImageLoader::load(TextureUploaderI& tu, Message3Handle m) {
if (!static_cast<bool>(m)) {
return std::nullopt;
}
if (m.all_of<Message::Components::TagNotImage>()) {
return std::nullopt;
}
if (m.all_of<Message::Components::Transfer::FileInfoLocal>()) {
const auto& file_list = m.get<Message::Components::Transfer::FileInfoLocal>().file_list;
assert(!file_list.empty());
const auto& file_path = file_list.front();
std::ifstream file(file_path, std::ios::binary);
if (file.is_open()) {
std::vector<uint8_t> tmp_buffer;
while (file.good()) {
auto ch = file.get();
if (ch == EOF) {
break;
} else {
tmp_buffer.push_back(ch);
}
}
// try all loaders after another
for (auto& il : _image_loaders) {
auto res = il->loadFromMemoryRGBA(tmp_buffer.data(), tmp_buffer.size());
if (res.frames.empty() || res.height == 0 || res.width == 0) {
continue;
}
TextureEntry new_entry;
new_entry.timestamp_last_rendered = Message::getTimeMS();
new_entry.current_texture = 0;
for (const auto& [ms, data] : res.frames) {
const auto n_t = tu.uploadRGBA(data.data(), res.width, res.height);
new_entry.textures.push_back(n_t);
new_entry.frame_duration.push_back(ms);
}
new_entry.width = res.width;
new_entry.height = res.height;
std::cout << "MIL: loaded image file " << file_path << "\n";
return new_entry;
}
}
}
std::cerr << "MIL: failed to load message\n";
return std::nullopt;
}