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decompiler: add texture merging feature (#3083)
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598ba1aaa3
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@ -99,6 +99,36 @@ void TextureDB::add_index_texture(u32 tpage,
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}
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}
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void TextureDB::merge_textures(const fs::path& base_path) {
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for (auto& tex : textures) {
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fs::path full_path = base_path / tpage_names.at(tex.second.page) / (tex.second.name + ".png");
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if (fs::exists(full_path)) {
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lg::info("Merging {}", full_path.string().c_str());
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int w, h;
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auto merge_data = stbi_load(full_path.string().c_str(), &w, &h, 0, 4); // rgba channels
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if (!merge_data) {
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lg::warn("failed to load PNG file: {}", full_path.string().c_str());
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continue;
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} else if (w != tex.second.w || h != tex.second.h) {
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lg::warn("merge texture does not match the same dimensions: {}, {} != {} || {} != {}",
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full_path.string().c_str(), w, tex.second.w, h, tex.second.h);
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stbi_image_free(merge_data);
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continue;
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}
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// Merge any non-transparent pixels into the existing texture
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for (int i = 0; i < w * h * 4; i += 4) {
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const auto merge_pixel_a = merge_data[i + 3];
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if (merge_pixel_a != 0) {
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u32 merge_pixel;
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memcpy(&merge_pixel, &merge_data[i], sizeof(u32));
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tex.second.rgba_bytes.at(i / 4) = merge_pixel;
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}
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}
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stbi_image_free(merge_data);
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}
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}
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}
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void TextureDB::replace_textures(const fs::path& path) {
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fs::path base_path(path);
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for (auto& tex : textures) {
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@ -55,6 +55,7 @@ struct TextureDB {
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const std::string& tpage_name,
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const std::vector<std::string>& level_names);
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void merge_textures(const fs::path& base_path);
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void replace_textures(const fs::path& path);
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std::string generate_texture_dest_adjustment_table() const;
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@ -172,6 +172,15 @@ void decompile(const fs::path& iso_data_path, const std::string& data_subfolder)
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file_util::create_dir_if_needed(textures_out);
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file_util::write_text_file(textures_out / "tpage-dir.txt",
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db.process_tpages(tex_db, textures_out, config));
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// texture merges
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// TODO - put all this stuff in somewhere common
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auto texture_merge_path = file_util::get_jak_project_dir() / "game" / "assets" /
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game_version_names[config.game_version] / "texture_merges";
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if (fs::exists(texture_merge_path)) {
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tex_db.merge_textures(texture_merge_path);
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}
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// texture replacements
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auto replacements_path = file_util::get_jak_project_dir() / "texture_replacements";
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if (fs::exists(replacements_path)) {
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@ -298,6 +298,13 @@ int main(int argc, char** argv) {
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mem_log("After textures: {} MB", get_peak_rss() / (1024 * 1024));
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// Merge textures before replacing them, in other words, replacements take priority
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auto texture_merge_path = file_util::get_jak_project_dir() / "game" / "assets" /
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game_version_names[config.game_version] / "texture_merges";
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if (fs::exists(texture_merge_path)) {
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tex_db.merge_textures(texture_merge_path);
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}
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auto replacements_path = file_util::get_jak_project_dir() / "texture_replacements";
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if (fs::exists(replacements_path)) {
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tex_db.replace_textures(replacements_path);
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