108 lines
4.8 KiB
C++
108 lines
4.8 KiB
C++
// postfx_config.cpp - Implementación del cargador de YAML del postpro.
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#include "core/config/postfx_config.hpp"
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#include <iostream>
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#include "core/resources/resource_helper.hpp"
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#include "external/fkyaml_node.hpp"
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namespace Config::PostFx {
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namespace {
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// Helper: lee `key` en `node` solo si existe; deja `dst` intacto en caso
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// contrario. Así, un YAML parcial sigue funcionando con los defaults del
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// struct para los campos que falten.
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template <typename T>
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void readField(const fkyaml::node& node, const char* key, T& dst) {
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if (node.contains(key)) {
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dst = node[key].get_value<T>();
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}
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}
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// Lee un array RGB [r, g, b] (0..255) y lo normaliza a [0..1] sobre tres
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// destinos floats. Si la clave no existe o no es secuencia de 3, deja los
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// destinos como están.
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void readRgb255(const fkyaml::node& node, const char* key, float& dst_r, float& dst_g, float& dst_b) {
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if (!node.contains(key)) {
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return;
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}
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const auto& arr = node[key];
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if (!arr.is_sequence() || arr.size() < 3) {
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return;
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}
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try {
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const auto R = arr[0].get_value<int>();
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const auto G = arr[1].get_value<int>();
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const auto B = arr[2].get_value<int>();
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dst_r = static_cast<float>(R) / 255.0F;
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dst_g = static_cast<float>(G) / 255.0F;
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dst_b = static_cast<float>(B) / 255.0F;
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} catch (...) { // @INTENTIONAL
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// Mantiene los defaults si algún elemento del RGB no es entero parseable
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// (el YAML viene de archivo, así que es razonable degradar a los defaults
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// en vez de propagar la excepción y abortar el load del postpro entero).
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}
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}
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} // namespace
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auto load(const std::string& path) -> Rendering::GPU::PostFxParams {
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Rendering::GPU::PostFxParams params{}; // valores por defecto del struct
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auto bytes = Resource::Helper::loadFile(path);
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if (bytes.empty()) {
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std::cerr << "[PostFxConfig] No se pudo cargar " << path
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<< " — usando defaults built-in\n";
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return params;
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}
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try {
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const auto* begin = reinterpret_cast<const char*>(bytes.data());
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const auto* end = begin + bytes.size();
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auto yaml = fkyaml::node::deserialize(begin, end);
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if (yaml.contains("bloom") && yaml["bloom"].is_mapping()) {
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const auto& node = yaml["bloom"];
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readField(node, "enabled", params.bloom_enabled);
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readField(node, "intensity", params.bloom_intensity);
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readField(node, "threshold", params.bloom_threshold);
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// sigma_px és el paràmetre canònic des del separable blur; acceptem
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// també `radius_px` com a alias per a configs antigues (s'interpreta
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// com sigma directament — els valors útils estan al mateix rang ~2-5).
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readField(node, "sigma_px", params.bloom_sigma_px);
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readField(node, "radius_px", params.bloom_sigma_px);
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}
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if (yaml.contains("flicker") && yaml["flicker"].is_mapping()) {
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const auto& node = yaml["flicker"];
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readField(node, "enabled", params.flicker_enabled);
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readField(node, "amplitude", params.flicker_amplitude);
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readField(node, "frequency_hz", params.flicker_frequency_hz);
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}
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if (yaml.contains("background") && yaml["background"].is_mapping()) {
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const auto& node = yaml["background"];
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readField(node, "enabled", params.background_enabled);
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readRgb255(node, "color_min", params.background_min_r, params.background_min_g, params.background_min_b);
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readRgb255(node, "color_max", params.background_max_r, params.background_max_g, params.background_max_b);
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readField(node, "pulse_frequency_hz", params.background_pulse_freq_hz);
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}
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std::cout << "[PostFxConfig] Cargado " << path
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<< " (bloom=" << (params.bloom_enabled ? "on" : "off")
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<< " intensity=" << params.bloom_intensity
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<< ", flicker=" << (params.flicker_enabled ? "on" : "off")
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<< " amp=" << params.flicker_amplitude
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<< ", bg=" << (params.background_enabled ? "on" : "off")
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<< ")\n";
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} catch (const fkyaml::exception& e) {
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std::cerr << "[PostFxConfig] Error parseando " << path << ": " << e.what()
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<< " — usando defaults built-in\n";
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}
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return params;
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}
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} // namespace Config::PostFx
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