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|
/* ScummVM - Scumm Interpreter
* Copyright (C) 2002-2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "common/stdafx.h"
#include "graphics/animation.h"
#include "sound/audiostream.h"
#include "common/config-manager.h"
#include "common/file.h"
#include "common/system.h"
#include "common/util.h"
#include "graphics/scaler/intern.h"
namespace Graphics {
BaseAnimationState::BaseAnimationState(Audio::Mixer *snd, OSystem *sys, int width, int height)
: _movieWidth(width), _movieHeight(height), _snd(snd), _sys(sys) {
#ifndef BACKEND_8BIT
const int screenW = _sys->getOverlayWidth();
const int screenH = _sys->getOverlayHeight();
_movieScale = MIN(screenW / _movieWidth, screenH / _movieHeight);
assert (_movieScale >= 1);
if (_movieScale > 3)
_movieScale = 3;
_colorTab = NULL;
_rgbToPix = NULL;
_bitFormat = 0;
#endif
}
BaseAnimationState::~BaseAnimationState() {
#ifdef USE_MPEG2
_snd->stopHandle(_bgSound);
if (_mpegDecoder)
mpeg2_close(_mpegDecoder);
delete _mpegFile;
#ifndef BACKEND_8BIT
_sys->hideOverlay();
free(_overlay);
free(_colorTab);
free(_rgbToPix);
#endif
delete _bgSoundStream;
#endif
}
bool BaseAnimationState::init(const char *name, void *audioArg) {
#ifdef USE_MPEG2
char tempFile[512];
_mpegDecoder = NULL;
_mpegFile = NULL;
_bgSoundStream = NULL;
#ifdef BACKEND_8BIT
uint i, p;
// Load lookup palettes
sprintf(tempFile, "%s.pal", name);
Common::File f;
if (!f.open(tempFile)) {
warning("Cutscene: %s palette missing", tempFile);
return false;
}
p = 0;
while (1) {
_palettes[p].end = f.readUint16LE();
_palettes[p].cnt = f.readUint16LE();
if (f.ioFailed())
break;
for (i = 0; i < _palettes[p].cnt; i++) {
_palettes[p].pal[4 * i] = f.readByte();
_palettes[p].pal[4 * i + 1] = f.readByte();
_palettes[p].pal[4 * i + 2] = f.readByte();
_palettes[p].pal[4 * i + 3] = 0;
}
for (; i < 256; i++) {
_palettes[p].pal[4 * i] = 0;
_palettes[p].pal[4 * i + 1] = 0;
_palettes[p].pal[4 * i + 2] = 0;
_palettes[p].pal[4 * i + 3] = 0;
}
p++;
}
f.close();
_palNum = 0;
_maxPalNum = p;
setPalette(_palettes[_palNum].pal);
_lut = _lut2 = _yuvLookup[0];
_curPal = -1;
_cr = 0;
buildLookup(_palNum, 256);
_lut2 = _yuvLookup[1];
_lutCalcNum = (BITDEPTH + _palettes[_palNum].end + 2) / (_palettes[_palNum].end + 2);
#else
buildLookup();
_overlay = (OverlayColor*)calloc(_movieScale * _movieWidth * _movieScale * _movieHeight, sizeof(OverlayColor));
_sys->showOverlay();
#endif
// Open MPEG2 stream
_mpegFile = new Common::File();
sprintf(tempFile, "%s.mp2", name);
if (!_mpegFile->open(tempFile)) {
warning("Cutscene: Could not open %s", tempFile);
return false;
}
// Load and configure decoder
_mpegDecoder = mpeg2_init();
if (_mpegDecoder == NULL) {
warning("Cutscene: Could not allocate an MPEG2 decoder");
return false;
}
_mpegInfo = mpeg2_info(_mpegDecoder);
_frameNum = 0;
_frameSkipped = 0;
_ticks = _sys->getMillis();
// Play audio
_bgSoundStream = createAudioStream(name, audioArg);
if (_bgSoundStream != NULL) {
_snd->playInputStream(Audio::Mixer::kSFXSoundType, &_bgSound, _bgSoundStream, -1, 255, 0, false);
} else {
warning("Cutscene: Could not open Audio Track for %s", name);
}
return true;
#else /* USE_MPEG2 */
return false;
#endif
}
Audio::AudioStream *BaseAnimationState::createAudioStream(const char *name, void *arg) {
return Audio::AudioStream::openStreamFile(name);
}
bool BaseAnimationState::decodeFrame() {
#ifdef USE_MPEG2
mpeg2_state_t state;
const mpeg2_sequence_t *sequence_i;
size_t size = (size_t) -1;
static byte buf[BUFFER_SIZE];
do {
state = mpeg2_parse(_mpegDecoder);
sequence_i = _mpegInfo->sequence;
switch (state) {
case STATE_BUFFER:
size = _mpegFile->read(buf, BUFFER_SIZE);
mpeg2_buffer(_mpegDecoder, buf, buf + size);
break;
case STATE_SLICE:
case STATE_END:
if (_mpegInfo->display_fbuf) {
/* simple audio video sync code:
* we calculate the actual frame by taking the elapsed audio time and try
* to stay inside +- 1 frame of this calculated frame number by dropping
* frames if we run behind and delaying if we are too fast
*/
if (checkPaletteSwitch() || (_bgSoundStream == NULL) ||
((_snd->getSoundElapsedTime(_bgSound) * 12) / 1000 < _frameNum + 1) ||
_frameSkipped > 10) {
if (_frameSkipped > 10) {
warning("force frame %i redraw", _frameNum);
_frameSkipped = 0;
}
drawYUV(sequence_i->width, sequence_i->height, _mpegInfo->display_fbuf->buf);
if (_bgSoundStream && _snd->isSoundHandleActive(_bgSound)) {
while (_snd->isSoundHandleActive(_bgSound) && (_snd->getSoundElapsedTime(_bgSound) * 12) / 1000 < _frameNum) {
_sys->delayMillis(10);
}
// In case the background sound ends prematurely, update
// _ticks so that we can still fall back on the no-sound
// sync case for the subsequent frames.
_ticks = _sys->getMillis();
} else {
_ticks += 83;
while (_sys->getMillis() < _ticks)
_sys->delayMillis(10);
}
} else {
warning("dropped frame %i", _frameNum);
_frameSkipped++;
}
#ifdef BACKEND_8BIT
buildLookup(_palNum + 1, _lutCalcNum);
#endif
_frameNum++;
return true;
}
break;
default:
break;
}
} while (size);
#endif
return false;
}
bool BaseAnimationState::checkPaletteSwitch() {
#ifdef BACKEND_8BIT
// if we have reached the last image with this palette, switch to new one
if (_frameNum == _palettes[_palNum].end) {
unsigned char *l = _lut2;
_palNum++;
setPalette(_palettes[_palNum].pal);
_lutCalcNum = (BITDEPTH + _palettes[_palNum].end - (_frameNum + 1) + 2) / (_palettes[_palNum].end - (_frameNum + 1) + 2);
_lut2 = _lut;
_lut = l;
return true;
}
#endif
return false;
}
#ifdef BACKEND_8BIT
/**
* Build 'Best-Match' RGB lookup table
*/
void BaseAnimationState::buildLookup(int p, int lines) {
int y, cb;
int r, g, b, ii;
if (p >= _maxPalNum)
return;
if (p != _curPal) {
_curPal = p;
_cr = 0;
_pos = 0;
}
if (_cr > BITDEPTH)
return;
for (ii = 0; ii < lines; ii++) {
r = (-16 * 256 + (int) (256 * 1.596) * ((_cr << SHIFT) - 128)) / 256;
for (cb = 0; cb <= BITDEPTH; cb++) {
g = (-16 * 256 - (int) (0.813 * 256) * ((_cr << SHIFT) - 128) - (int) (0.391 * 256) * ((cb << SHIFT) - 128)) / 256;
b = (-16 * 256 + (int) (2.018 * 256) * ((cb << SHIFT) - 128)) / 256;
for (y = 0; y <= BITDEPTH; y++) {
int idx, bst = 0;
int dis = 2 * SQR(r - _palettes[p].pal[0]) + 4 * SQR(g - _palettes[p].pal[1]) + SQR(b - _palettes[p].pal[2]);
for (idx = 1; idx < 256; idx++) {
long d2 = 2 * SQR(r - _palettes[p].pal[4 * idx]) + 4 * SQR(g - _palettes[p].pal[4 * idx + 1]) + SQR(b - _palettes[p].pal[4 * idx + 2]);
if (d2 < dis) {
bst = idx;
dis = d2;
}
}
_lut2[_pos++] = bst;
r += (1 << SHIFT);
g += (1 << SHIFT);
b += (1 << SHIFT);
}
r -= (BITDEPTH + 1) * (1 << SHIFT);
}
_cr++;
if (_cr > BITDEPTH)
return;
}
}
#else
// The YUV to RGB conversion code is derived from SDL's YUV overlay code, which
// in turn appears to be derived from mpeg_play. The following copyright
// notices have been included in accordance with the original license. Please
// note that the term "software" in this context only applies to the two
// functions buildLookup() and plotYUV() below.
// Copyright (c) 1995 The Regents of the University of California.
// All rights reserved.
//
// Permission to use, copy, modify, and distribute this software and its
// documentation for any purpose, without fee, and without written agreement is
// hereby granted, provided that the above copyright notice and the following
// two paragraphs appear in all copies of this software.
//
// IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
// DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
// OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
// CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
// ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
// PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
// Copyright (c) 1995 Erik Corry
// All rights reserved.
//
// Permission to use, copy, modify, and distribute this software and its
// documentation for any purpose, without fee, and without written agreement is
// hereby granted, provided that the above copyright notice and the following
// two paragraphs appear in all copies of this software.
//
// IN NO EVENT SHALL ERIK CORRY BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
// SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF
// THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF ERIK CORRY HAS BEEN ADVISED
// OF THE POSSIBILITY OF SUCH DAMAGE.
//
// ERIK CORRY SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
// PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS"
// BASIS, AND ERIK CORRY HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT,
// UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
// Portions of this software Copyright (c) 1995 Brown University.
// All rights reserved.
//
// Permission to use, copy, modify, and distribute this software and its
// documentation for any purpose, without fee, and without written agreement
// is hereby granted, provided that the above copyright notice and the
// following two paragraphs appear in all copies of this software.
//
// IN NO EVENT SHALL BROWN UNIVERSITY BE LIABLE TO ANY PARTY FOR
// DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
// OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF BROWN
// UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// BROWN UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
// PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS"
// BASIS, AND BROWN UNIVERSITY HAS NO OBLIGATION TO PROVIDE MAINTENANCE,
// SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
void BaseAnimationState::buildLookup() {
// Do we already have lookup tables for this bit format?
if (gBitFormat == _bitFormat && _colorTab && _rgbToPix)
return;
free(_colorTab);
free(_rgbToPix);
_colorTab = (int16 *)malloc(4 * 256 * sizeof(int16));
int16 *Cr_r_tab = &_colorTab[0 * 256];
int16 *Cr_g_tab = &_colorTab[1 * 256];
int16 *Cb_g_tab = &_colorTab[2 * 256];
int16 *Cb_b_tab = &_colorTab[3 * 256];
_rgbToPix = (OverlayColor *)malloc(3 * 768 * sizeof(OverlayColor));
OverlayColor *r_2_pix_alloc = &_rgbToPix[0 * 768];
OverlayColor *g_2_pix_alloc = &_rgbToPix[1 * 768];
OverlayColor *b_2_pix_alloc = &_rgbToPix[2 * 768];
int16 CR, CB;
int i;
// Generate the tables for the display surface
for (i = 0; i < 256; i++) {
// Gamma correction (luminescence table) and chroma correction
// would be done here. See the Berkeley mpeg_play sources.
CR = CB = (i - 128);
Cr_r_tab[i] = (int16) ( (0.419 / 0.299) * CR);
Cr_g_tab[i] = (int16) (-(0.299 / 0.419) * CR);
Cb_g_tab[i] = (int16) (-(0.114 / 0.331) * CB);
Cb_b_tab[i] = (int16) ( (0.587 / 0.331) * CB);
}
// Set up entries 0-255 in rgb-to-pixel value tables.
for (i = 0; i < 256; i++) {
r_2_pix_alloc[i + 256] = _sys->RGBToColor(i, 0, 0);
g_2_pix_alloc[i + 256] = _sys->RGBToColor(0, i, 0);
b_2_pix_alloc[i + 256] = _sys->RGBToColor(0, 0, i);
}
// Spread out the values we have to the rest of the array so that we do
// not need to check for overflow.
for (i = 0; i < 256; i++) {
r_2_pix_alloc[i] = r_2_pix_alloc[256];
r_2_pix_alloc[i + 512] = r_2_pix_alloc[511];
g_2_pix_alloc[i] = g_2_pix_alloc[256];
g_2_pix_alloc[i + 512] = g_2_pix_alloc[511];
b_2_pix_alloc[i] = b_2_pix_alloc[256];
b_2_pix_alloc[i + 512] = b_2_pix_alloc[511];
}
_bitFormat = gBitFormat;
}
void BaseAnimationState::plotYUV(int width, int height, byte *const *dat) {
switch (_movieScale) {
case 1:
plotYUV1x(width, height, dat);
break;
case 2:
plotYUV2x(width, height, dat);
break;
case 3:
plotYUV3x(width, height, dat);
break;
}
}
void BaseAnimationState::plotYUV1x(int width, int height, byte *const *dat) {
OverlayColor *ptr = _overlay + _movieWidth * (_movieHeight - height) / 2 + (_movieWidth - width) / 2;
byte *lum = dat[0];
byte *cr = dat[2];
byte *cb = dat[1];
byte *lum2 = lum + width;
int16 cr_r;
int16 crb_g;
int16 cb_b;
OverlayColor *row1 = ptr;
OverlayColor *row2 = ptr + _movieWidth;
int x, y;
for (y = 0; y < height; y += 2) {
OverlayColor *r1 = row1;
OverlayColor *r2 = row2;
for (x = 0; x < width; x += 2) {
register byte L;
cr_r = 0 * 768 + 256 + _colorTab[*cr + 0 * 256];
crb_g = 1 * 768 + 256 + _colorTab[*cr + 1 * 256] + _colorTab[*cb + 2 * 256];
cb_b = 2 * 768 + 256 + _colorTab[*cb + 3 * 256];
++cr;
++cb;
L = *lum++;
*r1++ = _rgbToPix[L + cr_r] | _rgbToPix[L + crb_g] | _rgbToPix[L + cb_b];
L = *lum++;
*r1++ = _rgbToPix[L + cr_r] | _rgbToPix[L + crb_g] | _rgbToPix[L + cb_b];
// Now, do second row.
L = *lum2++;
*r2++ = _rgbToPix[L + cr_r] | _rgbToPix[L + crb_g] | _rgbToPix[L + cb_b];
L = *lum2++;
*r2++ = _rgbToPix[L + cr_r] | _rgbToPix[L + crb_g] | _rgbToPix[L + cb_b];
}
lum += width;
lum2 += width;
row1 += 2 * _movieWidth;
row2 += 2 * _movieWidth;
}
}
void BaseAnimationState::plotYUV2x(int width, int height, byte *const *dat) {
OverlayColor *ptr = _overlay + 2 * _movieWidth * (_movieHeight - height) + _movieWidth - width;
byte *lum = dat[0];
byte *cr = dat[2];
byte *cb = dat[1];
byte *lum2 = lum + width;
int16 cr_r;
int16 crb_g;
int16 cb_b;
OverlayColor *row1 = ptr;
OverlayColor *row2 = ptr + 2 * 2 * _movieWidth;
int x, y;
for (y = 0; y < height; y += 2) {
OverlayColor *r1 = row1;
OverlayColor *r2 = row2;
for (x = 0; x < width; x += 2) {
register byte L;
register OverlayColor C;
cr_r = 0 * 768 + 256 + _colorTab[*cr + 0 * 256];
crb_g = 1 * 768 + 256 + _colorTab[*cr + 1 * 256] + _colorTab[*cb + 2 * 256];
cb_b = 2 * 768 + 256 + _colorTab[*cb + 3 * 256];
++cr;
++cb;
L = *lum++;
C = _rgbToPix[L + cr_r] | _rgbToPix[L + crb_g] | _rgbToPix[L + cb_b];
*r1++ = C;
*r1++ = C;
L = *lum++;
C = _rgbToPix[L + cr_r] | _rgbToPix[L + crb_g] | _rgbToPix[L + cb_b];
*r1++ = C;
*r1++ = C;
// Now, do second row.
L = *lum2++;
C = _rgbToPix[L + cr_r] | _rgbToPix[L + crb_g] | _rgbToPix[L + cb_b];
*r2++ = C;
*r2++ = C;
L = *lum2++;
C = _rgbToPix[L + cr_r] | _rgbToPix[L + crb_g] | _rgbToPix[L + cb_b];
*r2++ = C;
*r2++ = C;
}
memcpy(row1 + 2 * _movieWidth, row1, 2 * _movieWidth * sizeof(OverlayColor));
memcpy(row2 + 2 * _movieWidth, row2, 2 * _movieWidth * sizeof(OverlayColor));
lum += width;
lum2 += width;
row1 += 4 * 2 * _movieWidth;
row2 += 4 * 2 * _movieWidth;
}
}
void BaseAnimationState::plotYUV3x(int width, int height, byte *const *dat) {
OverlayColor *ptr = _overlay + (3 * (_movieHeight - height) / 2) * 3 * _movieWidth + 3 * (_movieWidth - width ) / 2;
byte *lum = dat[0];
byte *cr = dat[2];
byte *cb = dat[1];
byte *lum2 = lum + width;
int16 cr_r;
int16 crb_g;
int16 cb_b;
OverlayColor *row1 = ptr;
OverlayColor *row2 = ptr + 3 * 3 * _movieWidth;
int x, y;
for (y = 0; y < height; y += 2) {
OverlayColor *r1 = row1;
OverlayColor *r2 = row2;
for (x = 0; x < width; x += 2) {
register byte L;
register OverlayColor C;
cr_r = 0 * 768 + 256 + _colorTab[*cr + 0 * 256];
crb_g = 1 * 768 + 256 + _colorTab[*cr + 1 * 256] + _colorTab[*cb + 2 * 256];
cb_b = 2 * 768 + 256 + _colorTab[*cb + 3 * 256];
++cr;
++cb;
L = *lum++;
C = _rgbToPix[L + cr_r] | _rgbToPix[L + crb_g] | _rgbToPix[L + cb_b];
*r1++ = C;
*r1++ = C;
*r1++ = C;
L = *lum++;
C = _rgbToPix[L + cr_r] | _rgbToPix[L + crb_g] | _rgbToPix[L + cb_b];
*r1++ = C;
*r1++ = C;
*r1++ = C;
// Now, do second row.
L = *lum2++;
C = _rgbToPix[L + cr_r] | _rgbToPix[L + crb_g] | _rgbToPix[L + cb_b];
*r2++ = C;
*r2++ = C;
*r2++ = C;
L = *lum2++;
C = _rgbToPix[L + cr_r] | _rgbToPix[L + crb_g] | _rgbToPix[L + cb_b];
*r2++ = C;
*r2++ = C;
*r2++ = C;
}
memcpy(row1 + 3 * _movieWidth, row1, 3 * _movieWidth * sizeof(OverlayColor));
memcpy(row1 + 2 * 3 * _movieWidth, row1, 3 * _movieWidth * sizeof(OverlayColor));
memcpy(row2 + 3 * _movieWidth, row2, 3 * _movieWidth * sizeof(OverlayColor));
memcpy(row2 + 2 * 3 * _movieWidth, row2, 3 * _movieWidth * sizeof(OverlayColor));
lum += width;
lum2 += width;
row1 += 6 * 3 * _movieWidth;
row2 += 6 * 3 * _movieWidth;
}
}
#endif
} // End of namespace Graphics
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