diff options
Diffstat (limited to 'crop-tool/crop-tool.cpp')
-rw-r--r-- | crop-tool/crop-tool.cpp | 280 |
1 files changed, 0 insertions, 280 deletions
diff --git a/crop-tool/crop-tool.cpp b/crop-tool/crop-tool.cpp deleted file mode 100644 index 42d54baa..00000000 --- a/crop-tool/crop-tool.cpp +++ /dev/null @@ -1,280 +0,0 @@ -#undef NDEBUG - -#include "defs.hpp" -#include "atlas.hpp" -#include "anim/serialize.hpp" - -#include <cassert> -#include <cmath> -#include <cstring> - -#include <algorithm> -#include <utility> -#include <tuple> - -#include <filesystem> - -#include <Corrade/Utility/Arguments.h> -#include <Corrade/Utility/Debug.h> -#include <Corrade/Utility/DebugStl.h> - -#include <opencv2/core/mat.hpp> -#include <opencv2/imgcodecs/imgcodecs.hpp> -#include <opencv2/imgproc/imgproc.hpp> - -using Corrade::Utility::Error; -using Corrade::Utility::Debug; - -using std::filesystem::path; - -struct options -{ - double scale = 0; - path input_dir, input_file, output_dir; - int width = 0, height = 0, nframes = 0; -}; - -[[nodiscard]] -static std::tuple<cv::Vec2i, cv::Vec2i, bool> find_image_bounds(const cv::Mat4b& mat) noexcept -{ - cv::Vec2i start{mat.cols, mat.rows}, end{0, 0}; - for (int y = 0; y < mat.rows; y++) - { - const auto* ptr = mat.ptr<cv::Vec4b>(y); - for (int x = 0; x < mat.cols; x++) - { - enum {R, G, B, A}; - if (cv::Vec4b px = ptr[x]; px[A] != 0) - { - start[0] = std::min(x, start[0]); - start[1] = std::min(y, start[1]); - end[0] = std::max(x+1, end[0]); - end[1] = std::max(y+1, end[1]); - } - } - } - if (start[0] < end[0] && start[1] < end[1]) - return {start, end, true}; - else - return {{}, {}, false}; -} - -[[nodiscard]] -static bool load_file(anim_group& group, options& opts, anim_atlas& atlas, const path& filename) noexcept -{ - auto mat = progn( - cv::Mat mat = cv::imread(filename.string(), cv::IMREAD_UNCHANGED); - if (mat.empty() || mat.type() != CV_8UC4) - { - Error{} << "failed to load" << filename << "as RGBA32 image"; - return cv::Mat4b{}; - } - return cv::Mat4b(std::move(mat)); - ); - - if (mat.empty()) - return false; - - auto [start, end, bounds_ok] = find_image_bounds(mat); - - if (!bounds_ok) - { - Error{} << "no valid image data in" << filename; - return false; - } - - cv::Size size{end - start}; - - if (opts.scale == 0.0) - { - assert(opts.width || opts.height); - if (opts.width) - opts.scale = (double)opts.width / size.width; - else - opts.scale = (double)opts.height / size.height; - assert(opts.scale > 1e-6); - } - - const cv::Size dest_size = { - (int)std::round(opts.scale * size.width), - (int)std::round(opts.scale * size.height) - }; - - if (size.width < dest_size.width || size.height < dest_size.height) - { - Error{} << "refusing to upscale image" << filename; - return false; - } - - cv::Mat4b resized{size}; - cv::resize(mat({start, size}), resized, dest_size, 0, 0, cv::INTER_LANCZOS4); - - const Magnum::Vector2i ground = { - (int)std::round((group.ground[0] - start[0]) * opts.scale), - (int)std::round((group.ground[1] - start[1]) * opts.scale), - }; - - group.frames.push_back({ground, atlas.offset(), {dest_size.width, dest_size.height}}); - atlas.add_entry({&group.frames.back(), std::move(resized)}); - return true; -} - -[[nodiscard]] -static bool load_directory(anim_group& group, options& opts, anim_atlas& atlas) noexcept -{ - const auto input_dir = opts.input_dir/group.name; - - if (std::error_code ec; !std::filesystem::exists(input_dir/".", ec)) - { - Error{Error::Flag::NoSpace} << "can't open directory " << input_dir << ": " << ec.message(); - return false; - } - - int max; - for (max = 1; max <= 9999; max++) - { - char filename[9]; - sprintf(filename, "%04d.png", max); - if (std::error_code ec; !std::filesystem::exists(input_dir/filename, ec)) - break; - } - - if (max == 1) - { - Error{Error::Flag::NoSpace} << "no files in directory " << input_dir << "!"; - return false; - } - - if (!opts.nframes) - opts.nframes = max-1; - else if (opts.nframes != max-1) - { - Error{Error::Flag::NoSpace} << "wrong frame count for direction '" - << group.name << "' -- " << max-1 - << " should be " << opts.nframes; - return false; - } - - group.frames.clear(); - // atlas stores its entries through a pointer. - // vector::reserve() is necessary to avoid use-after-free. - group.frames.reserve((std::size_t)max-1); - - for (int i = 1; i < max; i++) - { - char filename[9]; - sprintf(filename, "%04d.png", i); - if (!load_file(group, opts, atlas, input_dir/filename)) - return false; - } - - atlas.advance_row(); - - return true; -} - -static char* fix_argv0(char* argv0) noexcept -{ -#ifdef _WIN32 - if (auto* c = strrchr(argv0, '\\'); c && c[1]) - { - if (auto* s = strrchr(c, '.'); s && !strcmp(".exe", s)) - *s = '\0'; - return c+1; - } -#else - if (auto* c = strrchr(argv[0], '/'); c && c[1]) - return c+1; -#endif - return argv0; -} - -using Corrade::Utility::Arguments; - -static std::tuple<options, Arguments, bool> parse_cmdline(int argc, const char* const* argv) noexcept -{ - Corrade::Utility::Arguments args{}; - args.addOption('o', "output") - .addArgument("input") - .addOption('W', "width", "") - .addOption('H', "height", ""); - args.parse(argc, argv); - options opts; - if (int w = args.value<int>("width"); w != 0) - opts.width = w; - if (int h = args.value<int>("height"); h != 0) - opts.height = h; - opts.input_file = args.value<std::string>("input"); - opts.input_dir = opts.input_file.parent_path(); - - if (opts.output_dir.empty()) - opts.output_dir = opts.input_dir; - - return { std::move(opts), std::move(args), true }; -} - -[[nodiscard]] static int usage(const Arguments& args) noexcept -{ - Error{Error::Flag::NoNewlineAtTheEnd} << args.usage(); - return EX_USAGE; -} - -[[nodiscard]] static bool check_atlas_name(const std::string& str) noexcept -{ - constexpr auto npos = std::string::npos; - - if (str.empty()) - return false; - if (str[0] == '.' || str[0] == '\\' || str[0] == '/') - return false; - if (str.find('"') != npos || str.find('\'') != npos) - return false; - if (str.find("/.") != npos || str.find("\\.") != npos) - return false; // NOLINT(readability-simplify-boolean-expr) - - return true; -} - -int main(int argc, char** argv) -{ - argv[0] = fix_argv0(argv[0]); - auto [opts, args, opts_ok] = parse_cmdline(argc, argv); - if (!opts_ok) - return usage(args); - - auto [anim_info, anim_ok] = anim::from_json(opts.input_file); - - if (!anim_ok) - return EX_DATAERR; - - if (!check_atlas_name(anim_info.name)) - { - Error{Error::Flag::NoSpace} << "atlas name '" << anim_info.name << "' contains invalid characters"; - return EX_DATAERR; - } - - if (!opts.width) - opts.width = anim_info.width; - if (!opts.height) - opts.height = anim_info.height; - opts.nframes = anim_info.nframes; - - if (!(opts.width ^ opts.height) || opts.width < 0 || opts.height < 0) - { - Error{} << "exactly one of --width, --height must be specified"; - return usage(args); - } - - anim_atlas atlas; - - for (anim_group& group : anim_info.groups) - if (!load_directory(group, opts, atlas)) - return EX_DATAERR; - - if (!atlas.dump(opts.output_dir/(anim_info.name + ".png"))) - return EX_CANTCREAT; - if (!anim_info.to_json(opts.output_dir/(anim_info.name + ".json"))) - return EX_CANTCREAT; - - return 0; -} |