X-Git-Url: https://git.jsancho.org/?a=blobdiff_plain;f=Source%2Funpack.c;h=c40c5b7cb42ecda8d20990a4d6f915bb1d10c067;hb=14a1f983de1723c52b252c161997651cecbef2e1;hp=a2cc44d9ebd2ae695a1b19c7cc3910701731189d;hpb=0cca0c495c7dc29d134a10d7eed5de1f377c99bf;p=lugaru.git diff --git a/Source/unpack.c b/Source/unpack.c index a2cc44d..c40c5b7 100644 --- a/Source/unpack.c +++ b/Source/unpack.c @@ -1,8 +1,54 @@ +/* +Copyright (C) 2003, 2010 - Wolfire Games + +This file is part of Lugaru. + +Lugaru 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 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 General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ + #include #include "binio.h" #include "private.h" -#include "unpack_private.h" + +struct BinIOUnpackContext +{ + const uint8_t *data; + va_list args; +}; + +static void BinIOUnpack(void *context, int type, int byte_order, int count) +{ + struct BinIOUnpackContext *ctx = (struct BinIOUnpackContext*)context; + if (count == -1) + { + count = 1; + } + + switch (type) + { + case BinIO_TYPE_IGNORE_BYTE: ctx->data += 1 * count; break; + case BinIO_TYPE_BYTE: BinIOConvert1(byte_order, BinIO_HOST_BYTE_ORDER, ctx->data, va_arg(ctx->args, uint8_t *), count); ctx->data += 1 * count; break; + case BinIO_TYPE_INT16: BinIOConvert2(byte_order, BinIO_HOST_BYTE_ORDER, ctx->data, va_arg(ctx->args, uint8_t *), count); ctx->data += 2 * count; break; + case BinIO_TYPE_INT32: BinIOConvert4(byte_order, BinIO_HOST_BYTE_ORDER, ctx->data, va_arg(ctx->args, uint8_t *), count); ctx->data += 4 * count; break; + case BinIO_TYPE_INT64: BinIOConvert8(byte_order, BinIO_HOST_BYTE_ORDER, ctx->data, va_arg(ctx->args, uint8_t *), count); ctx->data += 8 * count; break; + case BinIO_TYPE_FLOAT32: BinIOConvert4(byte_order, BinIO_HOST_BYTE_ORDER, ctx->data, va_arg(ctx->args, uint8_t *), count); ctx->data += 4 * count; break; + case BinIO_TYPE_FLOAT64: BinIOConvert8(byte_order, BinIO_HOST_BYTE_ORDER, ctx->data, va_arg(ctx->args, uint8_t *), count); ctx->data += 8 * count; break; + } +} void unpackf(const char *format, ...) { @@ -36,9 +82,11 @@ void vsunpackf(const void *buffer, const char *format, va_list args) BinIOInitFormatCursor(&cursor, format); context.data = (const unsigned char*)buffer; - context.args = args; + va_copy(context.args, args); while (BinIONextChar(&context, &cursor, BinIOUnpack)) {} + + va_end(context.args); } void vfunpackf(FILE *file, const char *format, va_list args)