From 33cb13dee5a527ac445ea1b13d42723e4eb3e3b0 Mon Sep 17 00:00:00 2001 From: Franklin Wei Date: Mon, 13 Oct 2014 21:00:47 -0400 Subject: Xworld - Another World interpreter for Rockbox Co-conspirators: Franklin Wei, Benjamin Brown -------------------------------------------------------------------- This work is based on: - Fabien Sanglard's "Fabother World" based on - Piotr Padkowski's newRaw interpreter which was based on - Gregory Montoir's reverse engineering of - Eric Chahi's assembly code -------------------------------------------------------------------- Progress: * The plugin runs pretty nicely (with sound!) on most color targets * Keymaps for color LCD targets are complete * The manual entry is finished * Grayscale/monochrome support is NOT PLANNED - the game looks horrible in grayscale! :p -------------------------------------------------------------------- Notes: * The original game strings were built-in to the executable, and were copyrighted and could not be used. * This port ships with an alternate set of strings by default, but can load the "official" strings from a file at runtime. -------------------------------------------------------------------- To be done (in descending order of importance): * vertical stride compatibility <30% done> * optimization <10% done> Change-Id: I3155b0d97c2ac470cb8a2040f40d4139ddcebfa5 Reviewed-on: http://gerrit.rockbox.org/1077 Reviewed-by: Michael Giacomelli --- apps/plugins/xworld/file.c | 172 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 172 insertions(+) create mode 100644 apps/plugins/xworld/file.c (limited to 'apps/plugins/xworld/file.c') diff --git a/apps/plugins/xworld/file.c b/apps/plugins/xworld/file.c new file mode 100644 index 0000000000..8353544ef5 --- /dev/null +++ b/apps/plugins/xworld/file.c @@ -0,0 +1,172 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2014 Franklin Wei, Benjamin Brown + * Copyright (C) 2004 Gregory Montoir + * + * This program 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. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ***************************************************************************/ + +#include "plugin.h" +#include "file.h" + +void file_create(struct File* f, bool gzipped) { + f->gzipped = gzipped; + f->fd = -1; + f->ioErr = false; +} + +bool file_open(struct File* f, const char *filename, const char *directory, const char *mode) { + char buf[512]; + rb->snprintf(buf, 512, "%s/%s", directory, filename); + char *p = buf + rb->strlen(directory) + 1; + string_lower(p); + + int flags = 0; + for(int i = 0; mode[i]; ++i) + { + switch(mode[i]) + { + case 'w': + flags |= O_WRONLY | O_CREAT | O_TRUNC; + break; + case 'r': + flags |= O_RDONLY; + break; + default: + break; + } + } + f->fd = -1; + debug(DBG_FILE, "trying %s first", buf); + f->fd = rb->open(buf, flags, 0666); + if (f->fd < 0) { // let's try uppercase + string_upper(p); + debug(DBG_FILE, "now trying %s uppercase", buf); + f->fd = rb->open(buf, flags, 0666); + } + if(f->fd > 0) + return true; + else + return false; +} + +void file_close(struct File* f) { + if(f->gzipped) + { + } + else + { + rb->close(f->fd); + } +} + +bool file_ioErr(struct File* f) { + return f->ioErr; +} + +void file_seek(struct File* f, int32_t off) { + if(f->gzipped) + { + } + else + { + rb->lseek(f->fd, off, SEEK_SET); + } +} +int file_read(struct File* f, void *ptr, uint32_t size) { + if(f->gzipped) + { + return -1; + } + else + { + unsigned int rc = rb->read(f->fd, ptr, size); + if(rc != size) + f->ioErr = true; + return rc; + } +} +uint8_t file_readByte(struct File* f) { + uint8_t b; + if(f->gzipped) + { + b = 0xff; + } + else + { + if(rb->read(f->fd, &b, 1) != 1) + { + f->ioErr = true; + debug(DBG_FILE, "file read failed"); + } + } + return b; +} + +uint16_t file_readUint16BE(struct File* f) { + uint8_t hi = file_readByte(f); + uint8_t lo = file_readByte(f); + return (hi << 8) | lo; +} + +uint32_t file_readUint32BE(struct File* f) { + uint16_t hi = file_readUint16BE(f); + uint16_t lo = file_readUint16BE(f); + return (hi << 16) | lo; +} + +int file_write(struct File* f, void *ptr, uint32_t size) { + if(f->gzipped) + { + return 0; + } + else + { + return rb->write(f->fd, ptr, size); + } +} + +void file_writeByte(struct File* f, uint8_t b) { + file_write(f, &b, 1); +} + +void file_writeUint16BE(struct File* f, uint16_t n) { + file_writeByte(f, n >> 8); + file_writeByte(f, n & 0xFF); +} + +void file_writeUint32BE(struct File* f, uint32_t n) { + file_writeUint16BE(f, n >> 16); + file_writeUint16BE(f, n & 0xFFFF); +} + +void file_remove(const char* filename, const char* directory) +{ + char buf[512]; + rb->snprintf(buf, 512, "%s/%s", directory, filename); + char *p = buf + rb->strlen(directory) + 1; + string_lower(p); + if(rb->file_exists(buf)) + { + rb->remove(buf); + } + else + { + string_upper(p); + rb->remove(buf); + } +} -- cgit v1.2.3