Sergio Valor
f272bab296
- Afegir GpuShaderPreset i ShaderManager per carregar shaders des de data/shaders/ - Implementar preset ntsc-md-rainbows (2 passos: encode + decode MAME NTSC) - Render loop multi-pass per shaders externs (targets intermedis R16G16B16A16_FLOAT) - cycleShader(): cicla OFF→PostFX natius→shaders externs amb tecla X - --shader <nom> per arrancar directament amb un preset extern - CMake auto-descubreix i compila data/shaders/**/*.vert/.frag → .spv - HUD F1 mostra 'Shader: <nom>' quan hi ha shader extern actiu Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
#include "shader_manager.hpp"
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#include <SDL3/SDL_log.h>
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#include <filesystem>
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#include <algorithm>
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namespace fs = std::filesystem;
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void ShaderManager::scan(const std::string& root_dir) {
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root_dir_ = root_dir;
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names_.clear();
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dirs_.clear();
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std::error_code ec;
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for (const auto& entry : fs::directory_iterator(root_dir, ec)) {
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if (!entry.is_directory()) continue;
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fs::path ini = entry.path() / "preset.ini";
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if (!fs::exists(ini)) continue;
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std::string preset_name = entry.path().filename().string();
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names_.push_back(preset_name);
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dirs_[preset_name] = entry.path().string();
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}
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if (ec) {
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SDL_Log("ShaderManager: scan error on %s: %s", root_dir.c_str(), ec.message().c_str());
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}
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std::sort(names_.begin(), names_.end());
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SDL_Log("ShaderManager: found %d preset(s) in %s", (int)names_.size(), root_dir.c_str());
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}
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GpuShaderPreset* ShaderManager::load(SDL_GPUDevice* device,
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const std::string& name,
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SDL_GPUTextureFormat swapchain_fmt,
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int w, int h) {
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auto it = loaded_.find(name);
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if (it != loaded_.end()) return it->second.get();
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auto dir_it = dirs_.find(name);
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if (dir_it == dirs_.end()) {
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SDL_Log("ShaderManager: preset '%s' not found", name.c_str());
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return nullptr;
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}
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auto preset = std::make_unique<GpuShaderPreset>();
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if (!preset->load(device, dir_it->second, swapchain_fmt, w, h)) {
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SDL_Log("ShaderManager: failed to load preset '%s'", name.c_str());
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return nullptr;
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}
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GpuShaderPreset* raw = preset.get();
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loaded_[name] = std::move(preset);
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return raw;
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}
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void ShaderManager::onResize(SDL_GPUDevice* device, SDL_GPUTextureFormat /*swapchain_fmt*/, int w, int h) {
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for (auto& [name, preset] : loaded_) {
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preset->recreateTargets(device, w, h);
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}
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}
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void ShaderManager::destroyAll(SDL_GPUDevice* device) {
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for (auto& [name, preset] : loaded_) {
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preset->destroy(device);
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}
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loaded_.clear();
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}
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