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/* ScummVM - Scumm Interpreter
* Copyright (C) 2002-2004 The ScummVM project
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#ifndef GRAPHICS_ANIMATION_H
#define GRAPHICS_ANIMATION_H
#include "common/scummsys.h"
#include "sound/mixer.h"
class AudioStream;
// Uncomment this if you are using libmpeg2 0.3.1.
// #define USE_MPEG2_0_3_1
#ifdef USE_MPEG2
typedef int8 int8_t;
typedef int16 int16_t;
typedef int32 int32_t;
typedef uint8 uint8_t;
typedef uint16 uint16_t;
typedef uint32 uint32_t;
extern "C" {
#include <mpeg2dec/mpeg2.h>
}
#ifdef USE_MPEG2_0_3_1
typedef int mpeg2_state_t;
typedef sequence_t mpeg2_sequence_t;
#define STATE_BUFFER -1
#endif
#endif
#ifdef BACKEND_8BIT
#define SQR(x) ((x) * (x))
#define SHIFT 3
#else
#define SHIFT 1
#endif
#define BITDEPTH (1 << (8 - SHIFT))
#define ROUNDADD (1 << (SHIFT - 1))
#define BUFFER_SIZE 4096
namespace Graphics {
class BaseAnimationState {
protected:
const int MOVIE_WIDTH;
const int MOVIE_HEIGHT;
SoundMixer *_snd;
OSystem *_sys;
uint framenum;
uint frameskipped;
uint32 ticks;
#ifdef USE_MPEG2
mpeg2dec_t *decoder;
const mpeg2_info_t *info;
#endif
File *mpgfile;
byte buffer[BUFFER_SIZE];
PlayingSoundHandle bgSound;
AudioStream *bgSoundStream;
#ifdef BACKEND_8BIT
int palnum;
int maxPalnum;
byte lookup[2][(BITDEPTH+1) * (BITDEPTH+1) * (BITDEPTH+1)];
byte *lut;
byte *lut2;
int lutcalcnum;
int curpal;
int cr;
int pos;
struct {
uint cnt;
uint end;
byte pal[4 * 256];
} palettes[50];
#else
static OverlayColor *lookup;
OverlayColor *overlay;
#endif
public:
BaseAnimationState(SoundMixer *snd, OSystem *sys, int width, int height);
virtual ~BaseAnimationState();
bool init(const char *name, void *audioArg = NULL);
bool decodeFrame();
#ifndef BACKEND_8BIT
void invalidateLookup(bool rebuild);
#endif
protected:
bool checkPaletteSwitch();
virtual void drawYUV(int width, int height, byte *const *dat) = 0;
virtual AudioStream *createAudioStream(const char *name, void *arg);
#ifdef BACKEND_8BIT
void buildLookup(int p, int lines);
virtual void setPalette(byte *pal) = 0;
#else
void buildLookup(void);
void plotYUV(OverlayColor *lut, int width, int height, byte *const *dat);
#endif
};
} // End of namespace Graphics
#endif
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