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https://github.com/libretro/scummvm.git
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146 lines
2.8 KiB
C++
146 lines
2.8 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2002-2005 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*
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*/
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#ifndef GRAPHICS_ANIMATION_H
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#define GRAPHICS_ANIMATION_H
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#include "common/scummsys.h"
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#include "sound/mixer.h"
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class AudioStream;
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// Uncomment this if you are using libmpeg2 0.3.1.
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// #define USE_MPEG2_0_3_1
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#ifdef USE_MPEG2
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typedef int8 int8_t;
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typedef int16 int16_t;
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typedef int32 int32_t;
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typedef uint8 uint8_t;
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typedef uint16 uint16_t;
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typedef uint32 uint32_t;
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extern "C" {
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#include <mpeg2dec/mpeg2.h>
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}
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#ifdef USE_MPEG2_0_3_1
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typedef int mpeg2_state_t;
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typedef sequence_t mpeg2_sequence_t;
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#define STATE_BUFFER -1
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#endif
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#endif
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#ifdef BACKEND_8BIT
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#define SQR(x) ((x) * (x))
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#define SHIFT 3
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#else
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#define SHIFT 1
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#endif
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#define BITDEPTH (1 << (8 - SHIFT))
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#define ROUNDADD (1 << (SHIFT - 1))
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#define BUFFER_SIZE 4096
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namespace Graphics {
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class BaseAnimationState {
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protected:
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const int MOVIE_WIDTH;
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const int MOVIE_HEIGHT;
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SoundMixer *_snd;
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OSystem *_sys;
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uint framenum;
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uint frameskipped;
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uint32 ticks;
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#ifdef USE_MPEG2
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mpeg2dec_t *decoder;
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const mpeg2_info_t *info;
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#endif
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File *mpgfile;
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byte buffer[BUFFER_SIZE];
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PlayingSoundHandle bgSound;
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AudioStream *bgSoundStream;
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#ifdef BACKEND_8BIT
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int palnum;
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int maxPalnum;
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byte lookup[2][(BITDEPTH+1) * (BITDEPTH+1) * (BITDEPTH+1)];
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byte *lut;
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byte *lut2;
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int lutcalcnum;
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int curpal;
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int cr;
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int pos;
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struct {
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uint cnt;
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uint end;
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byte pal[4 * 256];
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} palettes[50];
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#else
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OverlayColor *overlay;
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int bitFormat;
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int16 *colortab;
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uint16 *rgb_2_pix;
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#endif
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public:
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BaseAnimationState(SoundMixer *snd, OSystem *sys, int width, int height);
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virtual ~BaseAnimationState();
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bool init(const char *name, void *audioArg = NULL);
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bool decodeFrame();
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#ifndef BACKEND_8BIT
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void buildLookup();
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#endif
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protected:
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bool checkPaletteSwitch();
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virtual void drawYUV(int width, int height, byte *const *dat) = 0;
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virtual AudioStream *createAudioStream(const char *name, void *arg);
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#ifdef BACKEND_8BIT
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void buildLookup(int p, int lines);
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virtual void setPalette(byte *pal) = 0;
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#else
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void plotYUV(int width, int height, byte *const *dat);
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#endif
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};
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} // End of namespace Graphics
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#endif
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