+/*
+Copyright (C) 2003, 2010 - Wolfire Games
+Copyright (C) 2010-2016 - Lugaru contributors (see AUTHORS file)
+
+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.
+
+Lugaru 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 Lugaru. If not, see <http://www.gnu.org/licenses/>.
+*/
+
#include <stdlib.h>
#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, ...)
{
struct BinIOUnpackContext context;
BinIOInitFormatCursor(&cursor, format);
-
+
context.data = (const unsigned char*)buffer;
va_copy(context.args, args);
-
+
while (BinIONextChar(&context, &cursor, BinIOUnpack)) {}
va_end(context.args);
size_t n_bytes = BinIOFormatByteCount(format);
void* buffer = malloc(n_bytes);
fread(buffer, n_bytes, 1, file);
-
+
vsunpackf(buffer, format, args);
-
+
free(buffer);
}