mkxp-freebird/binding-mri/binding-mri.cpp

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/*
** binding-mri.cpp
**
** This file is part of mkxp.
**
** Copyright (C) 2013 Jonas Kulla <Nyocurio@gmail.com>
**
** mkxp is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 2 of the License, or
** (at your option) any later version.
**
** mkxp is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with mkxp. If not, see <http://www.gnu.org/licenses/>.
*/
#include "binding.h"
#include "binding-util.h"
#include "sharedstate.h"
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#include "eventthread.h"
#include "filesystem.h"
#include "util.h"
#include "debugwriter.h"
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#include <ruby.h>
#include <ruby/encoding.h>
#include <string>
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#include <zlib.h>
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#include <SDL_filesystem.h>
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extern const char module_rpg[];
static void mriBindingExecute();
static void mriBindingTerminate();
ScriptBinding scriptBindingImpl =
{
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mriBindingExecute,
mriBindingTerminate
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};
ScriptBinding *scriptBinding = &scriptBindingImpl;
void tableBindingInit();
void etcBindingInit();
void fontBindingInit();
void bitmapBindingInit();
void spriteBindingInit();
void viewportBindingInit();
void planeBindingInit();
void windowBindingInit();
void tilemapBindingInit();
void inputBindingInit();
void audioBindingInit();
void graphicsBindingInit();
void fileIntBindingInit();
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RB_METHOD(mriPrint);
RB_METHOD(mriP);
RB_METHOD(mriDataDirectory);
RB_METHOD(mkxpPuts);
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#ifndef RGSS3
RB_METHOD(_kernelCaller);
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#endif
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static void mriBindingInit()
{
tableBindingInit();
etcBindingInit();
fontBindingInit();
bitmapBindingInit();
spriteBindingInit();
viewportBindingInit();
planeBindingInit();
windowBindingInit();
tilemapBindingInit();
inputBindingInit();
audioBindingInit();
graphicsBindingInit();
fileIntBindingInit();
#ifdef RGSS3
_rb_define_module_function(rb_mKernel, "msgbox", mriPrint);
_rb_define_module_function(rb_mKernel, "msgbox_p", mriP);
#else
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_rb_define_module_function(rb_mKernel, "print", mriPrint);
_rb_define_module_function(rb_mKernel, "p", mriP);
#endif
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rb_eval_string(module_rpg);
VALUE mod = rb_define_module("System");
_rb_define_module_function(mod, "data_directory", mriDataDirectory);
_rb_define_module_function(mod, "puts", mkxpPuts);
#ifndef RGSS3
rb_define_alias(rb_singleton_class(rb_mKernel), "_mkxp_kernel_caller_alias", "caller");
_rb_define_module_function(rb_mKernel, "caller", _kernelCaller);
#endif
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rb_define_global_const("MKXP", Qtrue);
}
static void
showMsg(const std::string &msg)
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{
shState->eThread().showMessageBox(msg.c_str());
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}
RB_METHOD(mkxpPuts)
{
RB_UNUSED_PARAM;
const char *str;
rb_get_args(argc, argv, "z", &str RB_ARG_END);
Debug() << str;
return Qnil;
}
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static void printP(int argc, VALUE *argv,
const char *convMethod, const char *sep)
{
VALUE dispString = rb_str_buf_new(128);
ID conv = rb_intern(convMethod);
for (int i = 0; i < argc; ++i)
{
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VALUE str = rb_funcall2(argv[i], conv, 0, NULL);
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rb_str_buf_append(dispString, str);
if (i < argc)
rb_str_buf_cat2(dispString, sep);
}
showMsg(RSTRING_PTR(dispString));
}
RB_METHOD(mriPrint)
{
RB_UNUSED_PARAM;
printP(argc, argv, "to_s", "");
return Qnil;
}
RB_METHOD(mriP)
{
RB_UNUSED_PARAM;
printP(argc, argv, "inspect", "\n");
return Qnil;
}
RB_METHOD(mriDataDirectory)
{
RB_UNUSED_PARAM;
const char *org, *app;
rb_get_args(argc, argv, "zz", &org, &app RB_ARG_END);
char *path = SDL_GetPrefPath(org, app);
VALUE pathStr = rb_str_new_cstr(path);
SDL_free(path);
return pathStr;
}
#ifndef RGSS3
RB_METHOD(_kernelCaller)
{
RB_UNUSED_PARAM;
VALUE trace = rb_funcall2(rb_mKernel, rb_intern("_mkxp_kernel_caller_alias"), 0, 0);
if (rb_type(trace) != RUBY_T_ARRAY)
return trace;
long len = RARRAY_LEN(trace);
if (len < 2)
return trace;
/* Remove useless "ruby:1:in 'eval'" */
rb_ary_pop(trace);
/* Also remove trace of this helper function */
rb_ary_shift(trace);
len -= 2;
if (len == 0)
return trace;
/* RMXP does this, not sure if specific or 1.8 related */
VALUE args[] = { rb_str_new_cstr(":in `<main>'"), rb_str_new_cstr("") };
rb_funcall2(rb_ary_entry(trace, len-1), rb_intern("gsub!"), 2, args);
return trace;
}
#endif
static VALUE newStringUTF8(const char *string, long length)
{
return rb_enc_str_new(string, length, rb_utf8_encoding());
}
struct evalArg
{
VALUE string;
VALUE filename;
};
static VALUE evalHelper(evalArg *arg)
{
VALUE argv[] = { arg->string, Qnil, arg->filename };
return rb_funcall2(Qnil, rb_intern("eval"), ARRAY_SIZE(argv), argv);
}
static VALUE evalString(VALUE string, VALUE filename, int *state)
{
evalArg arg = { string, filename };
return rb_protect((VALUE (*)(VALUE))evalHelper, (VALUE)&arg, state);
}
static void runCustomScript(const std::string &filename)
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{
std::string scriptData;
if (!readFile(filename.c_str(), scriptData))
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{
showMsg(std::string("Unable to open '") + filename + "'");
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return;
}
evalString(newStringUTF8(scriptData.c_str(), scriptData.size()),
newStringUTF8(filename.c_str(), filename.size()), NULL);
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}
VALUE kernelLoadDataInt(const char *filename);
#ifdef RGSS3
#define RGSS_SECTION_STR "{%04ld}"
#else
#define RGSS_SECTION_STR "Section%03ld"
#endif
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static void runRMXPScripts()
{
const std::string &scriptPack = shState->rtData().config.game.scripts;
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if (scriptPack.empty())
{
showMsg("No game scripts specified (missing Game.ini?)");
return;
}
if (!shState->fileSystem().exists(scriptPack.c_str()))
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{
showMsg("Unable to open '" + scriptPack + "'");
return;
}
VALUE scriptArray = kernelLoadDataInt(scriptPack.c_str());
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if (rb_type(scriptArray) != RUBY_T_ARRAY)
{
showMsg("Failed to read script data");
return;
}
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rb_gv_set("$RGSS_SCRIPTS", scriptArray);
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long scriptCount = RARRAY_LEN(scriptArray);
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std::string decodeBuffer;
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decodeBuffer.resize(0x1000);
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for (long i = 0; i < scriptCount; ++i)
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{
VALUE script = rb_ary_entry(scriptArray, i);
if (rb_type(script) != RUBY_T_ARRAY)
continue;
VALUE scriptName = rb_ary_entry(script, 1);
VALUE scriptString = rb_ary_entry(script, 2);
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int result = Z_OK;
unsigned long bufferLen;
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while (true)
{
unsigned char *bufferPtr =
reinterpret_cast<unsigned char*>(const_cast<char*>(decodeBuffer.c_str()));
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const unsigned char *sourcePtr =
reinterpret_cast<const unsigned char*>(RSTRING_PTR(scriptString));
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bufferLen = decodeBuffer.length();
result = uncompress(bufferPtr, &bufferLen,
sourcePtr, RSTRING_LEN(scriptString));
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bufferPtr[bufferLen] = '\0';
if (result != Z_BUF_ERROR)
break;
decodeBuffer.resize(decodeBuffer.size()*2);
}
if (result != Z_OK)
{
static char buffer[256];
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snprintf(buffer, sizeof(buffer), "Error decoding script %ld: '%s'",
i, RSTRING_PTR(scriptName));
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showMsg(buffer);
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break;
}
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rb_ary_store(script, 3, rb_str_new_cstr(decodeBuffer.c_str()));
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}
for (long i = 0; i < scriptCount; ++i)
{
VALUE script = rb_ary_entry(scriptArray, i);
VALUE scriptDecoded = rb_ary_entry(script, 3);
VALUE string = newStringUTF8(RSTRING_PTR(scriptDecoded),
RSTRING_LEN(scriptDecoded));
VALUE fname;
if (shState->rtData().config.useScriptNames)
{
fname = rb_ary_entry(script, 1);
}
else
{
char buf[32];
int len = snprintf(buf, sizeof(buf), RGSS_SECTION_STR, i);
fname = newStringUTF8(buf, len);
}
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int state;
evalString(string, fname, &state);
if (state)
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break;
}
}
static void showExc(VALUE exc)
{
VALUE bt = rb_funcall2(exc, rb_intern("backtrace"), 0, NULL);
VALUE bt0 = rb_ary_entry(bt, 0);
VALUE name = rb_class_path(rb_obj_class(exc));
VALUE ds = rb_sprintf("%" PRIsVALUE ": %" PRIsVALUE " (%" PRIsVALUE ")",
bt0, exc, name);
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/* omit "useless" last entry (from ruby:1:in `eval') */
for (long i = 1, btlen = RARRAY_LEN(bt) - 1; i < btlen; ++i)
rb_str_catf(ds, "\n\tfrom %" PRIsVALUE, rb_ary_entry(bt, i));
Debug() << StringValueCStr(ds);
ID id_index = rb_intern("index");
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/* an "offset" argument is not needed for the first time */
VALUE argv[2] = { rb_str_new_cstr(":") };
long filelen = NUM2LONG(rb_funcall2(bt0, id_index, 1, argv));
argv[1] = LONG2NUM(filelen + 1);
VALUE tmp = rb_funcall2(bt0, id_index, ARRAY_SIZE(argv), argv);
long linelen = NUM2LONG(tmp) - filelen - 1;
VALUE file = rb_str_subseq(bt0, 0, filelen);
VALUE line = rb_str_subseq(bt0, filelen + 1, linelen);
VALUE ms = rb_sprintf("Script '%" PRIsVALUE "' line %" PRIsVALUE
": %" PRIsVALUE " occured.\n\n%" PRIsVALUE,
file, line, name, exc);
showMsg(StringValueCStr(ms));
}
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static void mriBindingExecute()
{
ruby_setup();
rb_enc_set_default_external(rb_enc_from_encoding(rb_utf8_encoding()));
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RbData rbData;
shState->setBindingData(&rbData);
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mriBindingInit();
std::string &customScript = shState->rtData().config.customScript;
if (!customScript.empty())
runCustomScript(customScript);
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else
runRMXPScripts();
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VALUE exc = rb_errinfo();
if (!NIL_P(exc) && !rb_obj_is_kind_of(exc, rb_eSystemExit))
showExc(exc);
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ruby_cleanup(0);
shState->rtData().rqTermAck = true;
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}
static void mriBindingTerminate()
{
rb_raise(rb_eSystemExit, " ");
}