scummvm/engines/twine/flamovies.h
2020-10-24 16:12:55 +02:00

138 lines
3.3 KiB
C++

/* 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 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef TWINE_FLAMOVIES_H
#define TWINE_FLAMOVIES_H
#include "common/scummsys.h"
#include "common/file.h"
namespace TwinE {
/** FLA movie directory */
#define FLA_DIR "fla/"
/** Original FLA screen width */
#define FLASCREEN_WIDTH 320
/** Original FLA screen height */
#define FLASCREEN_HEIGHT 200
/** FLA movie header structure */
struct FLAHeaderStruct {
/** FLA version */
int8 version[6] {0};
/** Number of frames */
int32 numOfFrames = 0;
/** Frames per second */
int8 speed = 0;
/** Unknown var1 */
int8 var1 = 0;
/** Frame width */
int16 xsize = 0;
/** Frame height */
int16 ysize = 0;
};
/** FLA movie frame structure */
struct FLAFrameDataStruct {
/** Current frame size */
int8 videoSize = 0;
/** Dummy variable */
int8 dummy = 0;
/** Unknown frameVar0 */
int32 frameVar0 = 0;
};
/** FLA movie sample structure */
struct FLASampleStruct {
/** Number os samples */
int16 sampleNum = 0;
/** Sample frequency */
int16 freq = 0;
/** Numbers of time to repeat */
int16 repeat = 0;
/** Dummy variable */
int8 dummy = 0;
/** Unknown x */
uint8 x = 0;
/** Unknown y */
uint8 y = 0;
};
/** FLA Frame Opcode types */
enum FlaFrameOpcode {
kLoadPalette = 0,
kFade = 1,
kPlaySample = 2,
kStopSample = 4,
kDeltaFrame = 5,
kKeyFrame = 7
};
class TwinEEngine;
class FlaMovies {
private:
TwinEEngine *_engine;
Common::File file;
/** Auxiliar FLA fade out variable */
int32 _fadeOut = 0;
/** Auxiliar FLA fade out variable to count frames between the fade */
int32 fadeOutFrames = 0;
/** FLA movie sample auxiliar table */
int32 flaSampleTable[100] {0};
/** Number of samples in FLA movie */
int32 samplesInFla = 0;
/** FLA movie header data */
FLAHeaderStruct flaHeaderData;
/** FLA movie header data */
FLAFrameDataStruct frameData;
void drawKeyFrame(uint8 *ptr, int32 width, int32 height);
void drawDeltaFrame(uint8 *ptr, int32 width);
/**
* Scale FLA movie 2 times
* According with the settins we can put the original aspect radio stretch
* to fullscreen or preserve it and use top and button black bars
*/
void scaleFla2x();
void processFrame();
public:
FlaMovies(TwinEEngine *engine);
/** FLA movie file buffer */
uint8 flaBuffer[FLASCREEN_WIDTH * FLASCREEN_HEIGHT] {0};
/**
* Play FLA movies
* @param flaName FLA movie name
*/
void playFlaMovie(const char *flaName);
};
} // namespace TwinE
#endif