vga.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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 AGOS_VGA_H
#define AGOS_VGA_H

namespace AGOS {

#include "common/pack-start.h"  // START STRUCT PACKING

// Feeble Files
struct VgaFile1Header_Feeble {
    uint16 imageCount;
    uint16 x_2;
    uint16 animationCount;
    uint16 x_3;
    uint16 imageTable;
    uint16 x_4;
    uint16 animationTable;
    uint16 x_5;
} PACKED_STRUCT;

struct ImageHeader_Feeble {
    uint16 id;
    uint16 x_1;
    uint16 scriptOffs;
    uint16 x_2;
} PACKED_STRUCT;

struct AnimationHeader_Feeble {
    uint16 scriptOffs;
    uint16 x_2;
    uint16 id;
} PACKED_STRUCT;

// Simon 1/2
struct ImageHeader_Simon {
    uint16 id;
    uint16 color;
    uint16 x_2;
    uint16 scriptOffs;
} PACKED_STRUCT;

struct AnimationHeader_Simon {
    uint16 id;
    uint16 x_2;
    uint16 scriptOffs;
} PACKED_STRUCT;


// Elvira 1/2 and Waxworks
struct ImageHeader_WW {
    uint16 id;
    uint16 color;
    uint16 x_2;
    uint16 scriptOffs;
} PACKED_STRUCT;

struct AnimationHeader_WW {
    uint16 id;
    uint16 x_1;
    uint16 x_2;
    uint16 scriptOffs;
} PACKED_STRUCT;

// Common
struct VgaFile1Header_Common {
    uint16 x_1;
    uint16 imageCount;
    uint16 x_2;
    uint16 animationCount;
    uint16 x_3;
    uint16 imageTable;
    uint16 x_4;
    uint16 animationTable;
    uint16 x_5;
} PACKED_STRUCT;

#include "common/pack-end.h"    // END STRUCT PACKING

enum DrawFlags {
    kDFFlip           = 0x1,
    kDFNonTrans       = 0x2,
    kDFSkipStoreBG    = 0x4,
    kDFCompressed     = 0x8,
    kDFCompressedFlip = 0x10,
    kDFMasked         = 0x20,

    // Feeble specific
    kDFOverlayed      = 0x10,
    kDFScaled         = 0x40,
    kDFShaded         = 0x80
};

struct VC10_state {
    int16 image;
    uint16 flags;
    byte palette;
    byte paletteMod;

    int16 x, y;
    uint16 width, height;
    uint16 draw_width, draw_height;
    uint16 x_skip, y_skip;

    byte *surf2_addr;
    uint surf2_pitch;

    byte *surf_addr;
    uint surf_pitch;

    uint16 dl, dh;

    const byte *srcPtr;
    int8 depack_cont;

    byte depack_dest[480];

    VC10_state() { memset(this, 0, sizeof(*this)); }
};

byte *vc10_depackColumn(VC10_state *vs);

} // End of namespace AGOS

#endif