4ff563725b
What can I say. I made a pact with the devil, and paid dearly. Almost a whole day's worth of debugging, actually. Not again. If this turns out to be slow we can always optimize the critical parts (with no variable param count) later, or completely remove it.
174 lines
3.6 KiB
C++
174 lines
3.6 KiB
C++
/*
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** filesystem-binding.cpp
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**
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** This file is part of mkxp.
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**
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** Copyright (C) 2013 Jonas Kulla <Nyocurio@gmail.com>
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**
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** mkxp is free software: you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation, either version 2 of the License, or
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** (at your option) any later version.
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**
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** mkxp is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with mkxp. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "binding-util.h"
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#include "globalstate.h"
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#include "filesystem.h"
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#include <QDebug>
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DEF_TYPE(FileInt);
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static VALUE
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fileIntForPath(const char *path)
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{
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SDL_RWops *ops = SDL_AllocRW();
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gState->fileSystem().openRead(*ops, path);
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VALUE klass = rb_const_get(rb_cObject, rb_intern("FileInt"));
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VALUE obj = rb_obj_alloc(klass);
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setPrivateData(obj, ops, FileIntType);
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return obj;
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}
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RB_METHOD(fileIntRead)
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{
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int length = -1;
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rb_get_args(argc, argv, "i", &length, RB_ARG_END);
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SDL_RWops *ops = getPrivateData<SDL_RWops>(self);
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if (length == -1)
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{
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Sint64 cur = SDL_RWtell(ops);
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Sint64 end = SDL_RWseek(ops, 0, SEEK_END);
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length = end - cur;
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SDL_RWseek(ops, cur, SEEK_SET);
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}
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if (length == 0)
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return Qnil;
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VALUE data = rb_str_new(0, length);
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SDL_RWread(ops, RSTRING_PTR(data), 1, length);
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return data;
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}
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RB_METHOD(fileIntClose)
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{
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RB_UNUSED_PARAM;
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SDL_RWops *ops = getPrivateData<SDL_RWops>(self);
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SDL_RWclose(ops);
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return Qnil;
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}
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RB_METHOD(fileIntGetByte)
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{
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RB_UNUSED_PARAM;
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SDL_RWops *ops = getPrivateData<SDL_RWops>(self);
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unsigned char byte;
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size_t result = SDL_RWread(ops, &byte, 1, 1);
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return (result == 1) ? rb_fix_new(byte) : Qnil;
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}
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RB_METHOD(fileIntBinmode)
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{
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RB_UNUSED_PARAM;
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return Qnil;
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}
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static void
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fileIntFreeInstance(void *inst)
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{
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SDL_RWops *ops = static_cast<SDL_RWops*>(inst);
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SDL_RWclose(ops);
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SDL_FreeRW(ops);
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}
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VALUE
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kernelLoadDataInt(const char *filename)
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{
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rb_gc_start();
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VALUE port = fileIntForPath(filename);
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VALUE marsh = rb_const_get(rb_cObject, rb_intern("Marshal"));
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// FIXME need to catch exceptions here with begin rescue
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VALUE result = rb_funcall(marsh, rb_intern("load"), 1, port);
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rb_funcall(port, rb_intern("close"), 0);
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return result;
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}
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RB_METHOD(kernelLoadData)
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{
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RB_UNUSED_PARAM;
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const char *filename;
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rb_get_args(argc, argv, "z", &filename, RB_ARG_END);
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return kernelLoadDataInt(filename);
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}
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RB_METHOD(kernelSaveData)
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{
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RB_UNUSED_PARAM;
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VALUE obj;
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VALUE filename;
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rb_get_args(argc, argv, "oS", &obj, &filename, RB_ARG_END);
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VALUE file = rb_funcall(rb_cFile, rb_intern("open"), 2, filename, rb_str_new_cstr("w"));
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VALUE marsh = rb_const_get(rb_cObject, rb_intern("Marshal"));
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rb_funcall(marsh, rb_intern("dump"), 2, obj, file);
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rb_funcall(file, rb_intern("close"), 0);
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return Qnil;
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}
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void
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fileIntBindingInit()
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{
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initType(FileIntType, "FileInt", fileIntFreeInstance);
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VALUE klass = rb_define_class("FileInt", rb_cIO);
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_rb_define_method(klass, "read", fileIntRead);
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// _rb_define_method(klass, "eof?", fileIntIsEof);
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// _rb_define_method(klass, "pos", fileIntGetPos);
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// _rb_define_method(klass, "pos=", fileIntSetPos);
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_rb_define_method(klass, "getbyte", fileIntGetByte);
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_rb_define_method(klass, "binmode", fileIntBinmode);
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_rb_define_method(klass, "close", fileIntClose);
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_rb_define_module_function(rb_mKernel, "load_data", kernelLoadData);
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_rb_define_module_function(rb_mKernel, "save_data", kernelSaveData);
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}
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