Initial commit of Command & Conquer Red Alert source code.

WINVQ/INCLUDE/VQM32/MIXFILE.H

@@ -0,0 +1,105 @@
+/*
+**	Command & Conquer Red Alert(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef VQMMIXFILE_H
+#define VQMMIXFILE_H
+/****************************************************************************
+*
+*         C O N F I D E N T I A L -- W E S T W O O D  S T U D I O S
+*
+*----------------------------------------------------------------------------
+*
+* FILE
+*     mixfile.h
+*
+* DESCRIPTION
+*     A mix file is basically a group of files concatinated together
+*     proceeded by a header describing where in the file each individual
+*     entry is located. These definitions are provided to simplify the access
+*     to these file entries.
+*
+* PROGRAMMER
+*     Denzil E. Long, Jr.
+*
+* DATE
+*     January 26, 1995
+*
+****************************************************************************/
+
+/* Disable structure alignment.*/
+#ifdef __WATCOMC__
+#pragma pack(1);
+#endif
+
+/*---------------------------------------------------------------------------
+ * STRUCTURE DEFINITIONS
+ *-------------------------------------------------------------------------*/
+
+/* MIXHeader: Mix file data header.
+ *
+ * Count - Number of entries contained in this mix file.
+ * Size  - Size of Mix file.
+ */
+typedef struct _MIXHeader {
+	short Count;
+	long  Size;
+} MIXHeader;
+
+/* MIXSubBlock: Mix file entry descriptor.
+ *
+ * CRC    - Unique entry identifier.
+ * Offset - Offset from beginning of data segment to entry.
+ * Size   - Size of entry.
+ */
+typedef struct _MIXSubBlock {
+	long CRC;
+	long Offset;
+	long Size;
+} MIXSubBlock;
+
+/* MIXHandle: Mix file handle.
+ *
+ * Name    - Pointer to the name of the mix file this handle is for.
+ * Size    - Size of entire mix file.
+ * FH      - DOS file handle of opened entry.
+ * Count   - Number of files contained in this mix.
+ * Entries - Array of 'Count' MIXSubBlock structure entries.
+ */
+typedef struct _MIXHandle {
+	char        *Name;
+	long        Size;
+	long        FH;
+	long        Count;
+	MIXSubBlock Entries[];
+} MIXHandle;
+
+/*---------------------------------------------------------------------------
+ * PROTOTYPES
+ *-------------------------------------------------------------------------*/
+
+MIXHandle *OpenMix(char *name);
+void CloseMix(MIXHandle *mix);
+long OpenMixEntry(MIXHandle *mix, char *name);
+
+/* Restore original alignment */
+#ifdef __WATCOMC__
+#pragma pack();
+#endif
+
+#endif /* VQMMIXFILE_H */
+