mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-28 04:34:50 +00:00
10eeb453d6
and memcpying it does. This commit also contains some code protected by #ifdef DXA_EXPERIMENT_MAXD that allows for reading an extended header on a .dxa file and using a MAXD chunk, if found, to reduce the amount of memory required to play a movie. Whether this gets enabled or not will ultimately depend on whether the savings are justified (i.e. if we can find a case where it makes enough difference). svn-id: r28047
135 lines
2.9 KiB
C++
135 lines
2.9 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.
|
|
*
|
|
* $URL$
|
|
* $Id$
|
|
*
|
|
*/
|
|
|
|
#ifndef GRAPHICS_DXA_PLAYER_H
|
|
#define GRAPHICS_DXA_PLAYER_H
|
|
|
|
#include "common/scummsys.h"
|
|
#include "common/file.h"
|
|
|
|
namespace Common {
|
|
class File;
|
|
}
|
|
|
|
namespace Graphics {
|
|
|
|
enum ScaleMode {
|
|
S_NONE,
|
|
S_INTERLACED,
|
|
S_DOUBLE
|
|
};
|
|
|
|
class DXAPlayer {
|
|
protected:
|
|
byte *_frameBuffer1;
|
|
byte *_frameBuffer2;
|
|
byte *_scaledBuffer;
|
|
byte *_drawBuffer;
|
|
byte *_inBuffer;
|
|
uint32 _inBufferSize;
|
|
byte *_decompBuffer;
|
|
uint32 _decompBufferSize;
|
|
uint16 _width;
|
|
uint16 _height, _curHeight;
|
|
uint16 _framesCount;
|
|
uint32 _framesPerSec;
|
|
uint16 _frameNum;
|
|
uint32 _frameSize;
|
|
uint16 _frameSkipped;
|
|
uint32 _frameTicks;
|
|
ScaleMode _scaleMode;
|
|
|
|
public:
|
|
DXAPlayer();
|
|
virtual ~DXAPlayer();
|
|
|
|
Common::SeekableReadStream *_fd;
|
|
|
|
/**
|
|
* Returns the width of the video
|
|
* @return the width of the video
|
|
*/
|
|
int getWidth();
|
|
|
|
/**
|
|
* Returns the height of the video
|
|
* @return the height of the video
|
|
*/
|
|
int getHeight();
|
|
|
|
/**
|
|
* Returns the current frame number of the video
|
|
* @return the current frame number of the video
|
|
*/
|
|
int getCurFrame();
|
|
|
|
/**
|
|
* Returns the amount of frames in the video
|
|
* @return the amount of frames in the video
|
|
*/
|
|
int getFrameCount();
|
|
|
|
/**
|
|
* Load a DXA encoded video file
|
|
* @param filename the filename to load
|
|
*/
|
|
bool loadFile(const char *filename);
|
|
|
|
/**
|
|
* Close a DXA encoded video file
|
|
*/
|
|
void closeFile();
|
|
|
|
protected:
|
|
/**
|
|
* Set palette, based on current frame
|
|
* @param pal the palette data
|
|
*/
|
|
virtual void setPalette(byte *pal) = 0;
|
|
|
|
/**
|
|
* Copy current frame into the specified position of the destination
|
|
* buffer.
|
|
* @param dst the buffer
|
|
* @param x the x position of the buffer
|
|
* @param y the y position of the buffer
|
|
* @param pitch the pitch of buffer
|
|
*/
|
|
void copyFrameToBuffer(byte *dst, uint x, uint y, uint pitch);
|
|
|
|
/**
|
|
* Decode the next frame
|
|
*/
|
|
void decodeNextFrame();
|
|
|
|
void decodeZlib(byte *data, int size, int totalSize);
|
|
void decode12(int size);
|
|
void decode13(int size);
|
|
};
|
|
|
|
} // End of namespace Graphics
|
|
|
|
#endif
|