+++ /dev/null
-/*
- * The 3D Studio File Format Library
- * Copyright (C) 1996-2001 by J.E. Hoffmann <je-h@gmx.net>
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation; either version 2.1 of the License, or (at
- * your option) any later version.
- *
- * This program 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 Lesser General Public
- * License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * $Id: io.c,v 1.3 2001/07/11 13:47:35 jeh Exp $
- */
-#define LIB3DS_EXPORT
-#include <lib3ds/io.h>
-#include <stdlib.h>
-#include <string.h>
-
-
-/*!
- * \defgroup io Binary Input/Ouput Abstraction Layer
- *
- * \author J.E. Hoffmann <je-h@gmx.net>
- */
-
-
-struct _Lib3dsIo {
- void *self;
- Lib3dsIoErrorFunc error_func;
- Lib3dsIoSeekFunc seek_func;
- Lib3dsIoTellFunc tell_func;
- Lib3dsIoReadFunc read_func;
- Lib3dsIoWriteFunc write_func;
-};
-
-
-Lib3dsIo*
-lib3ds_io_new(void *self, Lib3dsIoErrorFunc error_func, Lib3dsIoSeekFunc seek_func,
- Lib3dsIoTellFunc tell_func, Lib3dsIoReadFunc read_func, Lib3dsIoWriteFunc write_func)
-{
- Lib3dsIo *io = calloc(sizeof(Lib3dsIo),1);
- ASSERT(io);
- if (!io) {
- return 0;
- }
-
- io->self = self;
- io->error_func = error_func;
- io->seek_func = seek_func;
- io->tell_func = tell_func;
- io->read_func = read_func;
- io->write_func = write_func;
-
- return io;
-}
-
-
-void
-lib3ds_io_free(Lib3dsIo *io)
-{
- ASSERT(io);
- if (!io) {
- return;
- }
- free(io);
-}
-
-
-Lib3dsBool
-lib3ds_io_error(Lib3dsIo *io)
-{
- ASSERT(io);
- if (!io || !io->error_func) {
- return 0;
- }
- return (*io->error_func)(io->self);
-}
-
-
-long
-lib3ds_io_seek(Lib3dsIo *io, long offset, Lib3dsIoSeek origin)
-{
- ASSERT(io);
- if (!io || !io->seek_func) {
- return 0;
- }
- return (*io->seek_func)(io->self, offset, origin);
-}
-
-
-long
-lib3ds_io_tell(Lib3dsIo *io)
-{
- ASSERT(io);
- if (!io || !io->tell_func) {
- return 0;
- }
- return (*io->tell_func)(io->self);
-}
-
-
-int
-lib3ds_io_read(Lib3dsIo *io, Lib3dsByte *buffer, int size)
-{
- ASSERT(io);
- if (!io || !io->read_func) {
- return 0;
- }
- return (*io->read_func)(io->self, buffer, size);
-}
-
-
-int
-lib3ds_io_write(Lib3dsIo *io, const Lib3dsByte *buffer, int size)
-{
- ASSERT(io);
- if (!io || !io->write_func) {
- return 0;
- }
- return (*io->write_func)(io->self, buffer, size);
-}
-
-
-/*!
- * \ingroup io
- *
- * Read a byte from a file stream.
- */
-Lib3dsByte
-lib3ds_io_read_byte(Lib3dsIo *io)
-{
- Lib3dsByte b;
-
- ASSERT(io);
- lib3ds_io_read(io, &b, 1);
- return(b);
-}
-
-
-/**
- * Read a word from a file stream in little endian format.
- */
-Lib3dsWord
-lib3ds_io_read_word(Lib3dsIo *io)
-{
- Lib3dsByte b[2];
- Lib3dsWord w;
-
- ASSERT(io);
- lib3ds_io_read(io, b, 2);
- w=((Lib3dsWord)b[1] << 8) |
- ((Lib3dsWord)b[0]);
- return(w);
-}
-
-
-/*!
- * \ingroup io
- *
- * Read a dword from file a stream in little endian format.
- */
-Lib3dsDword
-lib3ds_io_read_dword(Lib3dsIo *io)
-{
- Lib3dsByte b[4];
- Lib3dsDword d;
-
- ASSERT(io);
- lib3ds_io_read(io, b, 4);
- d=((Lib3dsDword)b[3] << 24) |
- ((Lib3dsDword)b[2] << 16) |
- ((Lib3dsDword)b[1] << 8) |
- ((Lib3dsDword)b[0]);
- return(d);
-}
-
-
-/*!
- * \ingroup io
- *
- * Read a signed byte from a file stream.
- */
-Lib3dsIntb
-lib3ds_io_read_intb(Lib3dsIo *io)
-{
- Lib3dsIntb b;
-
- ASSERT(io);
- lib3ds_io_read(io, (Lib3dsByte*)&b, 1);
- return(b);
-}
-
-
-/*!
- * \ingroup io
- *
- * Read a signed word from a file stream in little endian format.
- */
-Lib3dsIntw
-lib3ds_io_read_intw(Lib3dsIo *io)
-{
- Lib3dsByte b[2];
- Lib3dsWord w;
-
- ASSERT(io);
- lib3ds_io_read(io, b, 2);
- w=((Lib3dsWord)b[1] << 8) |
- ((Lib3dsWord)b[0]);
- return((Lib3dsIntw)w);
-}
-
-
-/*!
- * \ingroup io
- *
- * Read a signed dword a from file stream in little endian format.
- */
-Lib3dsIntd
-lib3ds_io_read_intd(Lib3dsIo *io)
-{
- Lib3dsByte b[4];
- Lib3dsDword d;
-
- ASSERT(io);
- lib3ds_io_read(io, b, 4);
- d=((Lib3dsDword)b[3] << 24) |
- ((Lib3dsDword)b[2] << 16) |
- ((Lib3dsDword)b[1] << 8) |
- ((Lib3dsDword)b[0]);
- return((Lib3dsIntd)d);
-}
-
-
-/*!
- * \ingroup io
- *
- * Read a float from a file stream in little endian format.
- */
-Lib3dsFloat
-lib3ds_io_read_float(Lib3dsIo *io)
-{
- Lib3dsByte b[4];
- Lib3dsDword d;
-
- ASSERT(io);
- lib3ds_io_read(io, b, 4);
- d=((Lib3dsDword)b[3] << 24) |
- ((Lib3dsDword)b[2] << 16) |
- ((Lib3dsDword)b[1] << 8) |
- ((Lib3dsDword)b[0]);
- return(*((Lib3dsFloat*)&d));
-}
-
-
-/*!
- * \ingroup io
- * \ingroup vector
- *
- * Read a vector from a file stream in little endian format.
- *
- * \param io IO input handle.
- * \param v The vector to store the data.
- */
-Lib3dsBool
-lib3ds_io_read_vector(Lib3dsIo *io, Lib3dsVector v)
-{
- ASSERT(io);
-
- v[0]=lib3ds_io_read_float(io);
- v[1]=lib3ds_io_read_float(io);
- v[2]=lib3ds_io_read_float(io);
-
- return(!lib3ds_io_error(io));
-}
-
-
-/*!
- * \ingroup io
- */
-Lib3dsBool
-lib3ds_io_read_rgb(Lib3dsIo *io, Lib3dsRgb rgb)
-{
- ASSERT(io);
-
- rgb[0]=lib3ds_io_read_float(io);
- rgb[1]=lib3ds_io_read_float(io);
- rgb[2]=lib3ds_io_read_float(io);
-
- return(!lib3ds_io_error(io));
-}
-
-
-/*!
- * \ingroup io
- *
- * Read a zero-terminated string from a file stream.
- *
- * \param io IO input handle.
- * \param s The buffer to store the read string.
- * \param buflen Buffer length.
- *
- * \return True on success, False otherwise.
- */
-Lib3dsBool
-lib3ds_io_read_string(Lib3dsIo *io, char *s, int buflen)
-{
- char c;
- int k=0;
-
- ASSERT(io);
- for (;;) {
- if (lib3ds_io_read(io, (Lib3dsByte*)&c, 1)!=1) {
- return LIB3DS_FALSE;
- }
- *s++ = c;
- if (!c) {
- break;
- }
- ++k;
- if (k>=buflen) {
- return(LIB3DS_FALSE);
- }
- }
-
- return(!lib3ds_io_error(io));
-}
-
-
-/*!
- * \ingroup io
- *
- * Writes a byte into a file stream.
- */
-Lib3dsBool
-lib3ds_io_write_byte(Lib3dsIo *io, Lib3dsByte b)
-{
- ASSERT(io);
- if (lib3ds_io_write(io, &b, 1)!=1) {
- return(LIB3DS_FALSE);
- }
- return(LIB3DS_TRUE);
-}
-
-
-/*!
- * \ingroup io
- *
- * Writes a word into a little endian file stream.
- */
-Lib3dsBool
-lib3ds_io_write_word(Lib3dsIo *io, Lib3dsWord w)
-{
- Lib3dsByte b[2];
-
- ASSERT(io);
- b[1]=((Lib3dsWord)w & 0xFF00) >> 8;
- b[0]=((Lib3dsWord)w & 0x00FF);
- if (lib3ds_io_write(io, b, 2)!=2) {
- return(LIB3DS_FALSE);
- }
- return(LIB3DS_TRUE);
-}
-
-
-/*!
- * \ingroup io
- *
- * Writes a dword into a little endian file stream.
- */
-Lib3dsBool
-lib3ds_io_write_dword(Lib3dsIo *io, Lib3dsDword d)
-{
- Lib3dsByte b[4];
-
- ASSERT(io);
- b[3]=(Lib3dsByte)(((Lib3dsDword)d & 0xFF000000) >> 24);
- b[2]=(Lib3dsByte)(((Lib3dsDword)d & 0x00FF0000) >> 16);
- b[1]=(Lib3dsByte)(((Lib3dsDword)d & 0x0000FF00) >> 8);
- b[0]=(Lib3dsByte)(((Lib3dsDword)d & 0x000000FF));
- if (lib3ds_io_write(io, b, 4)!=4) {
- return(LIB3DS_FALSE);
- }
- return(LIB3DS_TRUE);
-}
-
-
-/*!
- * \ingroup io
- *
- * Writes a signed byte in a file stream.
- */
-Lib3dsBool
-lib3ds_io_write_intb(Lib3dsIo *io, Lib3dsIntb b)
-{
- ASSERT(io);
- if (lib3ds_io_write(io, (Lib3dsByte*)&b, 1)!=1) {
- return(LIB3DS_FALSE);
- }
- return(LIB3DS_TRUE);
-}
-
-
-/*!
- * \ingroup io
- *
- * Writes a signed word into a little endian file stream.
- */
-Lib3dsBool
-lib3ds_io_write_intw(Lib3dsIo *io, Lib3dsIntw w)
-{
- Lib3dsByte b[2];
-
- ASSERT(io);
- b[1]=((Lib3dsWord)w & 0xFF00) >> 8;
- b[0]=((Lib3dsWord)w & 0x00FF);
- if (lib3ds_io_write(io, b, 2)!=2) {
- return(LIB3DS_FALSE);
- }
- return(LIB3DS_TRUE);
-}
-
-
-/*!
- * \ingroup io
- *
- * Writes a signed dword into a little endian file stream.
- */
-Lib3dsBool
-lib3ds_io_write_intd(Lib3dsIo *io, Lib3dsIntd d)
-{
- Lib3dsByte b[4];
-
- ASSERT(io);
- b[3]=(Lib3dsByte)(((Lib3dsDword)d & 0xFF000000) >> 24);
- b[2]=(Lib3dsByte)(((Lib3dsDword)d & 0x00FF0000) >> 16);
- b[1]=(Lib3dsByte)(((Lib3dsDword)d & 0x0000FF00) >> 8);
- b[0]=(Lib3dsByte)(((Lib3dsDword)d & 0x000000FF));
- if (lib3ds_io_write(io, b, 4)!=4) {
- return(LIB3DS_FALSE);
- }
- return(LIB3DS_TRUE);
-}
-
-
-/*!
- * \ingroup io
- *
- * Writes a float into a little endian file stream.
- */
-Lib3dsBool
-lib3ds_io_write_float(Lib3dsIo *io, Lib3dsFloat l)
-{
- Lib3dsByte b[4];
- Lib3dsDword d;
-
- ASSERT(io);
- d=*((Lib3dsDword*)&l);
- b[3]=(Lib3dsByte)(((Lib3dsDword)d & 0xFF000000) >> 24);
- b[2]=(Lib3dsByte)(((Lib3dsDword)d & 0x00FF0000) >> 16);
- b[1]=(Lib3dsByte)(((Lib3dsDword)d & 0x0000FF00) >> 8);
- b[0]=(Lib3dsByte)(((Lib3dsDword)d & 0x000000FF));
- if (lib3ds_io_write(io, b, 4)!=4) {
- return(LIB3DS_FALSE);
- }
- return(LIB3DS_TRUE);
-}
-
-
-/*!
- * \ingroup io
- * \ingroup vector
- *
- * Writes a vector into a file stream in little endian format.
- */
-Lib3dsBool
-lib3ds_io_write_vector(Lib3dsIo *io, Lib3dsVector v)
-{
- int i;
- for (i=0; i<3; ++i) {
- if (!lib3ds_io_write_float(io, v[i])) {
- return(LIB3DS_FALSE);
- }
- }
- return(LIB3DS_TRUE);
-}
-
-
-/*!
- * \ingroup io
- */
-Lib3dsBool
-lib3ds_io_write_rgb(Lib3dsIo *io, Lib3dsRgb rgb)
-{
- int i;
- for (i=0; i<3; ++i) {
- if (!lib3ds_io_write_float(io, rgb[i])) {
- return(LIB3DS_FALSE);
- }
- }
- return(LIB3DS_TRUE);
-}
-
-
-/*!
- * \ingroup io
- *
- * Writes a zero-terminated string into a file stream.
- */
-Lib3dsBool
-lib3ds_io_write_string(Lib3dsIo *io, const char *s)
-{
- ASSERT(s);
- ASSERT(io);
- lib3ds_io_write(io, (const Lib3dsByte*)s, strlen(s)+1);
- return(!lib3ds_io_error(io));
-}
projects / summerhack / blobdiff