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-rw-r--r--graphics/video/coktel_decoder.cpp2757
1 files changed, 0 insertions, 2757 deletions
diff --git a/graphics/video/coktel_decoder.cpp b/graphics/video/coktel_decoder.cpp
deleted file mode 100644
index fdb244ddf2..0000000000
--- a/graphics/video/coktel_decoder.cpp
+++ /dev/null
@@ -1,2757 +0,0 @@
-/* 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.
- *
- * $URL$
- * $Id$
- *
- */
-
-#include "common/scummsys.h"
-
-#include "graphics/video/coktel_decoder.h"
-
-#include "graphics/video/codecs/codec.h"
-#include "graphics/video/codecs/indeo3.h"
-
-#ifdef GRAPHICS_VIDEO_COKTELDECODER_H
-
-#include "sound/audiostream.h"
-#include "sound/decoders/raw.h"
-#include "common/memstream.h"
-
-static const uint32 kVideoCodecIndeo3 = MKID_BE('iv32');
-
-namespace Graphics {
-
-CoktelDecoder::State::State() : flags(0), speechId(0) {
-}
-
-
-CoktelDecoder::CoktelDecoder(Audio::Mixer *mixer, Audio::Mixer::SoundType soundType) :
- _mixer(mixer), _soundType(soundType), _width(0), _height(0), _x(0), _y(0),
- _defaultX(0), _defaultY(0), _features(0), _frameCount(0), _paletteDirty(false),
- _ownSurface(true), _frameRate(12), _hasSound(false), _soundEnabled(false),
- _soundStage(kSoundNone), _audioStream(0) {
-
- assert(_mixer);
-
- memset(_palette, 0, 768);
-}
-
-CoktelDecoder::~CoktelDecoder() {
-}
-
-bool CoktelDecoder::evaluateSeekFrame(int32 &frame, int whence) const {
- if (!isVideoLoaded())
- // Nothing to do
- return false;
-
- // Find the frame to which to seek
- if (whence == SEEK_CUR)
- frame += _curFrame;
- else if (whence == SEEK_END)
- frame = _frameCount - frame - 1;
- else if (whence == SEEK_SET)
- frame--;
- else
- return false;
-
- if ((frame < -1) || (frame >= ((int32) _frameCount)))
- // Out of range
- return false;
-
- return true;
-}
-
-void CoktelDecoder::setSurfaceMemory(void *mem, uint16 width, uint16 height, uint8 bpp) {
- freeSurface();
-
- if (!hasVideo())
- return;
-
- // Sanity checks
- assert((width > 0) && (height > 0));
- assert(bpp == getPixelFormat().bytesPerPixel);
-
- // Create a surface over this memory
- _surface.w = width;
- _surface.h = height;
- _surface.pitch = width * bpp;
- _surface.pixels = mem;
- _surface.bytesPerPixel = bpp;
-
- _ownSurface = false;
-}
-
-void CoktelDecoder::setSurfaceMemory() {
- freeSurface();
- createSurface();
-
- _ownSurface = true;
-}
-
-const Surface *CoktelDecoder::getSurface() const {
- if (!isVideoLoaded())
- return 0;
-
- return &_surface;
-}
-
-bool CoktelDecoder::hasSurface() {
- return _surface.pixels != 0;
-}
-
-void CoktelDecoder::createSurface() {
- if (hasSurface())
- return;
-
- if (!hasVideo())
- return;
-
- if ((_width > 0) && (_height > 0))
- _surface.create(_width, _height, getPixelFormat().bytesPerPixel);
-
- _ownSurface = true;
-}
-
-void CoktelDecoder::freeSurface() {
- if (!_ownSurface) {
- _surface.w = 0;
- _surface.h = 0;
- _surface.pitch = 0;
- _surface.pixels = 0;
- _surface.bytesPerPixel = 0;
- } else
- _surface.free();
-
- _ownSurface = true;
-}
-
-void CoktelDecoder::setXY(uint16 x, uint16 y) {
- _x = x;
- _y = y;
-}
-
-void CoktelDecoder::setXY() {
- setXY(_defaultX, _defaultY);
-}
-
-void CoktelDecoder::setFrameRate(Common::Rational frameRate) {
- _frameRate = frameRate;
-}
-
-uint16 CoktelDecoder::getDefaultX() const {
- return _defaultX;
-}
-
-uint16 CoktelDecoder::getDefaultY() const {
- return _defaultY;
-}
-
-const Common::List<Common::Rect> &CoktelDecoder::getDirtyRects() const {
- return _dirtyRects;
-}
-
-bool CoktelDecoder::hasPalette() const {
- return (_features & kFeaturesPalette) != 0;
-}
-
-bool CoktelDecoder::hasVideo() const {
- return true;
-}
-
-bool CoktelDecoder::hasSound() const {
- return _hasSound;
-}
-
-bool CoktelDecoder::isSoundEnabled() const {
- return _soundEnabled;
-}
-
-bool CoktelDecoder::isSoundPlaying() const {
- return _audioStream && _mixer->isSoundHandleActive(_audioHandle);
-}
-
-void CoktelDecoder::enableSound() {
- if (!hasSound() || isSoundEnabled())
- return;
-
- // Sanity check
- if (_mixer->getOutputRate() == 0)
- return;
-
- // Only possible on the first frame
- if (_curFrame > -1)
- return;
-
- _soundEnabled = true;
-}
-
-void CoktelDecoder::disableSound() {
- if (_audioStream) {
- if ((_soundStage == kSoundPlaying) || (_soundStage == kSoundFinished)) {
- _audioStream->finish();
- _mixer->stopHandle(_audioHandle);
- }
-
- delete _audioStream;
- }
-
- _soundEnabled = false;
- _soundStage = kSoundNone;
-
- _audioStream = 0;
-}
-
-void CoktelDecoder::colorModeChanged() {
-}
-
-bool CoktelDecoder::getFrameCoords(int16 frame, int16 &x, int16 &y, int16 &width, int16 &height) {
- return false;
-}
-
-bool CoktelDecoder::hasEmbeddedFiles() const {
- return false;
-}
-
-bool CoktelDecoder::hasEmbeddedFile(const Common::String &fileName) const {
- return false;
-}
-
-Common::SeekableReadStream *CoktelDecoder::getEmbeddedFile(const Common::String &fileName) const {
- return 0;
-}
-
-int32 CoktelDecoder::getSubtitleIndex() const {
- return -1;
-}
-
-bool CoktelDecoder::isPaletted() const {
- return true;
-}
-
-void CoktelDecoder::close() {
- disableSound();
- freeSurface();
-
- _x = 0;
- _y = 0;
-
- _defaultX = 0;
- _defaultY = 0;
-
- _features = 0;
-
- _frameCount = 0;
-
- _hasSound = false;
-}
-
-uint16 CoktelDecoder::getWidth() const {
- return _width;
-}
-
-uint16 CoktelDecoder::getHeight() const {
- return _height;
-}
-
-uint32 CoktelDecoder::getFrameCount() const {
- return _frameCount;
-}
-
-const byte *CoktelDecoder::getPalette() {
- return _palette;
-}
-
-bool CoktelDecoder::hasDirtyPalette() const {
- return (_features & kFeaturesPalette) && _paletteDirty;
-}
-
-uint32 CoktelDecoder::deLZ77(byte *dest, const byte *src, uint32 srcSize, uint32 destSize) {
- uint32 frameLength = READ_LE_UINT32(src);
- if (frameLength > destSize) {
- warning("CoktelDecoder::deLZ77(): Uncompressed size bigger than buffer size (%d > %d)", frameLength, destSize);
- return 0;
- }
-
- assert(srcSize >= 4);
-
- uint32 realSize = frameLength;
-
- src += 4;
- srcSize -= 4;
-
- uint16 bufPos1;
- bool mode;
- if ((READ_LE_UINT16(src) == 0x1234) && (READ_LE_UINT16(src + 2) == 0x5678)) {
- assert(srcSize >= 4);
-
- src += 4;
- srcSize -= 4;
-
- bufPos1 = 273;
- mode = 1; // 123Ch (cmp al, 12h)
- } else {
- bufPos1 = 4078;
- mode = 0; // 275h (jnz +2)
- }
-
- byte buf[4370];
- memset(buf, 32, bufPos1);
-
- uint8 chunkCount = 1;
- uint8 chunkBitField = 0;
-
- while (frameLength > 0) {
- chunkCount--;
-
- if (chunkCount == 0) {
- chunkCount = 8;
- chunkBitField = *src++;
- }
-
- if (chunkBitField % 2) {
- assert(srcSize >= 1);
-
- chunkBitField >>= 1;
- buf[bufPos1] = *src;
- *dest++ = *src++;
- bufPos1 = (bufPos1 + 1) % 4096;
- frameLength--;
- srcSize--;
- continue;
- }
- chunkBitField >>= 1;
-
- assert(srcSize >= 2);
-
- uint16 tmp = READ_LE_UINT16(src);
- uint16 chunkLength = ((tmp & 0xF00) >> 8) + 3;
-
- src += 2;
- srcSize -= 2;
-
- if ((mode && ((chunkLength & 0xFF) == 0x12)) ||
- (!mode && (chunkLength == 0))) {
- assert(srcSize >= 1);
-
- chunkLength = *src++ + 0x12;
- srcSize--;
- }
-
- uint16 bufPos2 = (tmp & 0xFF) + ((tmp >> 4) & 0x0F00);
- if (((tmp + chunkLength) >= 4096) ||
- ((chunkLength + bufPos1) >= 4096)) {
-
- for (int i = 0; i < chunkLength; i++, dest++) {
- *dest = buf[bufPos2];
- buf[bufPos1] = buf[bufPos2];
- bufPos1 = (bufPos1 + 1) % 4096;
- bufPos2 = (bufPos2 + 1) % 4096;
- }
-
- } else if (((tmp + chunkLength) < bufPos1) ||
- ((chunkLength + bufPos1) < bufPos2)) {
-
- memcpy(dest, buf + bufPos2, chunkLength);
- memmove(buf + bufPos1, buf + bufPos2, chunkLength);
-
- dest += chunkLength;
- bufPos1 += chunkLength;
- bufPos2 += chunkLength;
-
- } else {
-
- for (int i = 0; i < chunkLength; i++, dest++, bufPos1++, bufPos2++) {
- *dest = buf[bufPos2];
- buf[bufPos1] = buf[bufPos2];
- }
-
- }
- frameLength -= chunkLength;
-
- }
-
- return realSize;
-}
-
-void CoktelDecoder::deRLE(byte *&destPtr, const byte *&srcPtr, int16 destLen, int16 srcLen) {
- srcPtr++;
-
- if (srcLen & 1) {
- byte data = *srcPtr++;
-
- if (destLen > 0) {
- *destPtr++ = data;
- destLen--;
- }
- }
-
- srcLen >>= 1;
-
- while (srcLen > 0) {
- uint8 tmp = *srcPtr++;
- if (tmp & 0x80) { // Verbatim copy
- tmp &= 0x7F;
-
- int16 copyCount = MAX<int16>(0, MIN<int16>(destLen, tmp * 2));
-
- memcpy(destPtr, srcPtr, copyCount);
-
- srcPtr += tmp * 2;
- destPtr += copyCount;
- destLen -= copyCount;
- } else { // 2 bytes tmp times
- for (int i = 0; (i < tmp) && (destLen > 0); i++) {
- for (int j = 0; j < 2; j++) {
- if (destLen <= 0)
- break;
-
- *destPtr++ = srcPtr[j];
- destLen--;
- }
- }
- srcPtr += 2;
- }
- srcLen -= tmp;
- }
-}
-
-// A whole, completely filled block
-void CoktelDecoder::renderBlockWhole(Surface &dstSurf, const byte *src, Common::Rect &rect) {
- Common::Rect srcRect = rect;
-
- rect.clip(dstSurf.w, dstSurf.h);
-
- byte *dst = (byte *)dstSurf.pixels + (rect.top * dstSurf.pitch) + rect.left * dstSurf.bytesPerPixel;
- for (int i = 0; i < rect.height(); i++) {
- memcpy(dst, src, rect.width() * dstSurf.bytesPerPixel);
-
- src += srcRect.width() * dstSurf.bytesPerPixel;
- dst += dstSurf.pitch;
- }
-}
-
-// A quarter-wide whole, completely filled block
-void CoktelDecoder::renderBlockWhole4X(Surface &dstSurf, const byte *src, Common::Rect &rect) {
- Common::Rect srcRect = rect;
-
- rect.clip(dstSurf.w, dstSurf.h);
-
- byte *dst = (byte *)dstSurf.pixels + (rect.top * dstSurf.pitch) + rect.left;
- for (int i = 0; i < rect.height(); i++) {
- byte *dstRow = dst;
- const byte *srcRow = src;
-
- int16 count = rect.width();
- while (count >= 0) {
- memset(dstRow, *srcRow, MIN<int16>(count, 4));
-
- count -= 4;
- dstRow += 4;
- srcRow += 1;
- }
-
- src += srcRect.width() / 4;
- dst += dstSurf.pitch;
- }
-}
-
-// A half-high whole, completely filled block
-void CoktelDecoder::renderBlockWhole2Y(Surface &dstSurf, const byte *src, Common::Rect &rect) {
- Common::Rect srcRect = rect;
-
- rect.clip(dstSurf.w, dstSurf.h);
-
- int16 height = rect.height();
-
- byte *dst = (byte *)dstSurf.pixels + (rect.top * dstSurf.pitch) + rect.left;
- while (height > 1) {
- memcpy(dst , src, rect.width());
- memcpy(dst + dstSurf.pitch, src, rect.width());
-
- height -= 2;
- src += srcRect.width();
- dst += 2 * dstSurf.pitch;
- }
-
- if (height == 1)
- memcpy(dst, src, rect.width());
-}
-
-// A sparse block
-void CoktelDecoder::renderBlockSparse(Surface &dstSurf, const byte *src, Common::Rect &rect) {
- Common::Rect srcRect = rect;
-
- rect.clip(dstSurf.w, dstSurf.h);
-
- byte *dst = (byte *)dstSurf.pixels + (rect.top * dstSurf.pitch) + rect.left;
- for (int i = 0; i < rect.height(); i++) {
- byte *dstRow = dst;
- int16 pixWritten = 0;
-
- while (pixWritten < srcRect.width()) {
- int16 pixCount = *src++;
-
- if (pixCount & 0x80) { // Data
- int16 copyCount;
-
- pixCount = MIN((pixCount & 0x7F) + 1, srcRect.width() - pixWritten);
- copyCount = CLIP<int16>(rect.width() - pixWritten, 0, pixCount);
- memcpy(dstRow, src, copyCount);
-
- pixWritten += pixCount;
- dstRow += pixCount;
- src += pixCount;
- } else { // "Hole"
- pixWritten += pixCount + 1;
- dstRow += pixCount + 1;
- }
-
- }
-
- dst += dstSurf.pitch;
- }
-}
-
-// A half-high sparse block
-void CoktelDecoder::renderBlockSparse2Y(Surface &dstSurf, const byte *src, Common::Rect &rect) {
- warning("renderBlockSparse2Y");
-
- Common::Rect srcRect = rect;
-
- rect.clip(dstSurf.w, dstSurf.h);
-
- byte *dst = (byte *)dstSurf.pixels + (rect.top * dstSurf.pitch) + rect.left;
- for (int i = 0; i < rect.height(); i += 2) {
- byte *dstRow = dst;
- int16 pixWritten = 0;
-
- while (pixWritten < srcRect.width()) {
- int16 pixCount = *src++;
-
- if (pixCount & 0x80) { // Data
- int16 copyCount;
-
- pixCount = MIN((pixCount & 0x7F) + 1, srcRect.width() - pixWritten);
- copyCount = CLIP<int16>(rect.width() - pixWritten, 0, pixCount);
- memcpy(dstRow , src, pixCount);
- memcpy(dstRow + dstSurf.pitch, src, pixCount);
-
- pixWritten += pixCount;
- dstRow += pixCount;
- src += pixCount;
- } else { // "Hole"
- pixWritten += pixCount + 1;
- dstRow += pixCount + 1;
- }
-
- }
-
- dst += dstSurf.pitch;
- }
-}
-
-void CoktelDecoder::renderBlockRLE(Surface &dstSurf, const byte *src, Common::Rect &rect) {
- Common::Rect srcRect = rect;
-
- rect.clip(dstSurf.w, dstSurf.h);
-
- byte *dst = (byte *)dstSurf.pixels + (rect.top * dstSurf.pitch) + rect.left;
- for (int i = 0; i < rect.height(); i++) {
- byte *dstRow = dst;
- int16 pixWritten = 0;
-
- while (pixWritten < srcRect.width()) {
- int16 pixCount = *src++;
-
- if (pixCount & 0x80) {
- int16 copyCount;
-
- pixCount = MIN((pixCount & 0x7F) + 1, srcRect.width() - pixWritten);
- copyCount = CLIP<int16>(rect.width() - pixWritten, 0, pixCount);
-
- if (*src != 0xFF) { // Normal copy
-
- memcpy(dstRow, src, copyCount);
- dstRow += copyCount;
- src += pixCount;
- } else
- deRLE(dstRow, src, copyCount, pixCount);
-
- pixWritten += pixCount;
- } else { // "Hole"
- int16 copyCount = CLIP<int16>(rect.width() - pixWritten, 0, pixCount + 1);
-
- dstRow += copyCount;
- pixWritten += pixCount + 1;
- }
-
- }
-
- dst += dstSurf.pitch;
- }
-}
-
-Common::Rational CoktelDecoder::getFrameRate() const {
- return _frameRate;
-}
-
-uint32 CoktelDecoder::getStaticTimeToNextFrame() const {
- return (1000 / _frameRate).toInt();
-}
-
-inline void CoktelDecoder::unsignedToSigned(byte *buffer, int length) {
- while (length-- > 0) *buffer++ ^= 0x80;
-}
-
-
-PreIMDDecoder::PreIMDDecoder(uint16 width, uint16 height,
- Audio::Mixer *mixer, Audio::Mixer::SoundType soundType) : CoktelDecoder(mixer, soundType),
- _stream(0), _videoBuffer(0), _videoBufferSize(0) {
-
- _width = width;
- _height = height;
-}
-
-PreIMDDecoder::~PreIMDDecoder() {
- close();
-}
-
-bool PreIMDDecoder::seek(int32 frame, int whence, bool restart) {
- if (!evaluateSeekFrame(frame, whence))
- return false;
-
- if (frame == _curFrame)
- // Nothing to do
- return true;
-
- // Run through the frames
- _curFrame = -1;
- _stream->seek(2);
- while (_curFrame != frame) {
- uint16 frameSize = _stream->readUint16LE();
-
- _stream->skip(frameSize + 2);
-
- _curFrame++;
- }
-
- return true;
-}
-
-bool PreIMDDecoder::load(Common::SeekableReadStream *stream) {
- // Since PreIMDs don't have any width and height values stored,
- // we need them to be specified in the constructor
- assert((_width > 0) && (_height > 0));
-
- close();
-
- _stream = stream;
-
- _stream->seek(0);
-
- _frameCount = _stream->readUint16LE();
-
- _videoBufferSize = _width * _height;
- _videoBuffer = new byte[_videoBufferSize];
-
- memset(_videoBuffer, 0, _videoBufferSize);
-
- return true;
-}
-
-void PreIMDDecoder::close() {
- reset();
-
- CoktelDecoder::close();
-
- delete _stream;
-
- delete[] _videoBuffer;
-
- _stream = 0;
-
- _videoBuffer = 0;
- _videoBufferSize = 0;
-}
-
-bool PreIMDDecoder::isVideoLoaded() const {
- return _stream != 0;
-}
-
-const Surface *PreIMDDecoder::decodeNextFrame() {
- if (!isVideoLoaded() || endOfVideo())
- return 0;
-
- createSurface();
-
- processFrame();
- renderFrame();
-
- if (_curFrame == 0)
- _startTime = g_system->getMillis();
-
- return &_surface;
-}
-
-void PreIMDDecoder::processFrame() {
- _curFrame++;
-
- uint16 frameSize = _stream->readUint16LE();
- if (_stream->eos() || (frameSize == 0))
- return;
-
- uint32 nextFramePos = _stream->pos() + frameSize + 2;
-
- byte cmd;
-
- cmd = _stream->readByte();
- frameSize--;
-
- if (cmd == 0) {
- // Palette. Ignored by Fascination, though.
-
- // NOTE: If we ever find another game using this format,
- // palettes may need to be evaluated.
-
- _stream->skip(768);
-
- frameSize -= 769;
-
- cmd = _stream->readByte();
- }
-
- if (cmd != 2) {
- // Partial frame data
-
- uint32 fSize = frameSize;
- uint32 vidSize = _videoBufferSize;
-
- byte *vidBuffer = _videoBuffer;
-
- while ((fSize > 0) && (vidSize > 0)) {
- uint32 n = _stream->readByte();
- fSize--;
-
- if ((n & 0x80) != 0) {
- // Data
-
- n = MIN<uint32>((n & 0x7F) + 1, MIN(fSize, vidSize));
-
- _stream->read(vidBuffer, n);
-
- vidBuffer += n;
- vidSize -= n;
- fSize -= n;
-
- } else {
- // Skip
-
- n = MIN<uint32>(n + 1, vidSize);
-
- vidBuffer += n;
- vidSize -= n;
- }
- }
-
- } else {
- // Full direct frame
-
- uint32 vidSize = MIN<uint32>(_videoBufferSize, frameSize);
-
- _stream->read(_videoBuffer, vidSize);
- }
-
- _stream->seek(nextFramePos);
-}
-
-// Just a simple blit
-void PreIMDDecoder::renderFrame() {
- _dirtyRects.clear();
-
- uint16 w = CLIP<int32>(_surface.w - _x, 0, _width);
- uint16 h = CLIP<int32>(_surface.h - _y, 0, _height);
-
- const byte *src = _videoBuffer;
- byte *dst = (byte *)_surface.pixels + (_y * _surface.pitch) + _x;
-
- uint32 frameDataSize = _videoBufferSize;
-
- while (h-- > 0) {
- uint32 n = MIN<uint32>(w, frameDataSize);
-
- memcpy(dst, src, n);
-
- src += _width;
- dst += _surface.pitch;
-
- frameDataSize -= n;
- }
-
- _dirtyRects.push_back(Common::Rect(_x, _y, _x + _width, _y + _height));
-}
-
-PixelFormat PreIMDDecoder::getPixelFormat() const {
- return PixelFormat::createFormatCLUT8();
-}
-
-
-IMDDecoder::IMDDecoder(Audio::Mixer *mixer, Audio::Mixer::SoundType soundType) : CoktelDecoder(mixer, soundType),
- _stream(0), _version(0), _stdX(-1), _stdY(-1), _stdWidth(-1), _stdHeight(-1),
- _flags(0), _firstFramePos(0), _framePos(0), _frameCoords(0), _videoBufferSize(0),
- _soundFlags(0), _soundFreq(0), _soundSliceSize(0), _soundSlicesCount(0) {
-
- _videoBuffer [0] = 0;
- _videoBuffer [1] = 0;
- _videoBufferLen[0] = 0;
- _videoBufferLen[1] = 0;
-}
-
-IMDDecoder::~IMDDecoder() {
- close();
-}
-
-bool IMDDecoder::seek(int32 frame, int whence, bool restart) {
- if (!evaluateSeekFrame(frame, whence))
- return false;
-
- if (frame == _curFrame)
- // Nothing to do
- return true;
-
- // Try every possible way to find a file offset to that frame
- uint32 framePos = 0;
- if (frame == -1) {
- // First frame, we know that position
-
- framePos = _firstFramePos;
-
- } else if (frame == 0) {
- // Second frame, can be calculated from the first frame's position
-
- framePos = _firstFramePos;
- _stream->seek(framePos);
- framePos += _stream->readUint16LE() + 4;
-
- } else if (_framePos) {
- // If we have an array of frame positions, use that
-
- framePos = _framePos[frame + 1];
-
- } else if (restart && (_soundStage == kSoundNone)) {
- // If we are asked to restart the video if necessary and have no
- // audio to worry about, restart the video and run through the frames
-
- _curFrame = 0;
- _stream->seek(_firstFramePos);
-
- for (int i = ((frame > _curFrame) ? _curFrame : 0); i <= frame; i++)
- processFrame();
-
- return true;
-
- } else {
- // Not possible
-
- warning("IMDDecoder::seek(): Frame %d is not directly accessible", frame + 1);
- return false;
- }
-
- // Seek
- _stream->seek(framePos);
- _curFrame = frame;
-
- return true;
-}
-
-void IMDDecoder::setXY(uint16 x, uint16 y) {
- // Adjusting the standard coordinates
- if (_stdX != -1) {
- if (x != 0xFFFF)
- _stdX = _stdX - _x + x;
- if (y != 0xFFFF)
- _stdY = _stdY - _y + y;
- }
-
- // Going through the coordinate table as well
- if (_frameCoords) {
- for (uint32 i = 0; i < _frameCount; i++) {
- if (_frameCoords[i].left != -1) {
- if (x != 0xFFFF) {
- _frameCoords[i].left = _frameCoords[i].left - _x + x;
- _frameCoords[i].right = _frameCoords[i].right - _x + x;
- }
- if (y != 0xFFFF) {
- _frameCoords[i].top = _frameCoords[i].top - _y + y;
- _frameCoords[i].bottom = _frameCoords[i].bottom - _y + y;
- }
- }
- }
- }
-
- if (x != 0xFFFF)
- _x = x;
- if (y != 0xFFFF)
- _y = y;
-}
-
-bool IMDDecoder::load(Common::SeekableReadStream *stream) {
- close();
-
- _stream = stream;
-
- uint16 handle;
-
- handle = _stream->readUint16LE();
- _version = _stream->readByte();
-
- // Version checking
- if ((handle != 0) || (_version < 2)) {
- warning("IMDDecoder::load(): Version incorrect (%d, 0x%X)", handle, _version);
- close();
- return false;
- }
-
- // Rest header
- _features = _stream->readByte();
- _frameCount = _stream->readUint16LE();
- _defaultX = _stream->readSint16LE();
- _defaultY = _stream->readSint16LE();
- _width = _stream->readSint16LE();
- _height = _stream->readSint16LE();
- _flags = _stream->readUint16LE();
- _firstFramePos = _stream->readUint16LE();
-
- _x = _defaultX;
- _y = _defaultY;
-
- // IMDs always have video
- _features |= kFeaturesVideo;
- // IMDs always have palettes
- _features |= kFeaturesPalette;
-
- // Palette
- for (int i = 0; i < 768; i++)
- _palette[i] = _stream->readByte() << 2;
-
- _paletteDirty = true;
-
- if (!loadCoordinates()) {
- close();
- return false;
- }
-
- uint32 framePosPos, frameCoordsPos;
- if (!loadFrameTableOffsets(framePosPos, frameCoordsPos)) {
- close();
- return false;
- }
-
- if (!assessAudioProperties()) {
- close();
- return false;
- }
-
- if (!assessVideoProperties()) {
- close();
- return false;
- }
-
- if (!loadFrameTables(framePosPos, frameCoordsPos)) {
- close();
- return false;
- }
-
- // Seek to the first frame
- _stream->seek(_firstFramePos);
-
- return true;
-}
-
-bool IMDDecoder::loadCoordinates() {
- // Standard coordinates
- if (_version >= 3) {
- uint16 count = _stream->readUint16LE();
- if (count > 1) {
- warning("IMDDecoder::loadCoordinates(): More than one standard coordinate quad found (%d)", count);
- return false;
- }
-
- if (count != 0) {
- _stdX = _stream->readSint16LE();
- _stdY = _stream->readSint16LE();
- _stdWidth = _stream->readSint16LE();
- _stdHeight = _stream->readSint16LE();
- _features |= kFeaturesStdCoords;
- } else
- _stdX = _stdY = _stdWidth = _stdHeight = -1;
-
- } else
- _stdX = _stdY = _stdWidth = _stdHeight = -1;
-
- return true;
-}
-
-bool IMDDecoder::loadFrameTableOffsets(uint32 &framePosPos, uint32 &frameCoordsPos) {
- framePosPos = 0;
- frameCoordsPos = 0;
-
- // Frame positions
- if (_version >= 4) {
- framePosPos = _stream->readUint32LE();
- if (framePosPos != 0) {
- _framePos = new uint32[_frameCount];
- _features |= kFeaturesFramePos;
- }
- }
-
- // Frame coordinates
- if (_features & kFeaturesFrameCoords)
- frameCoordsPos = _stream->readUint32LE();
-
- return true;
-}
-
-bool IMDDecoder::assessVideoProperties() {
- uint32 suggestedVideoBufferSize = 0;
-
- // Sizes of the frame data and extra video buffer
- if (_features & kFeaturesDataSize) {
- uint32 size1, size2;
-
- size1 = _stream->readUint16LE();
- if (size1 == 0) {
- size1 = _stream->readUint32LE();
- size2 = _stream->readUint32LE();
- } else
- size2 = _stream->readUint16LE();
-
- suggestedVideoBufferSize = MAX(size1, size2);
- }
-
- _videoBufferSize = _width * _height + 1000;
-
- if (suggestedVideoBufferSize > _videoBufferSize) {
- warning("Suggested video buffer size greater than what should be needed (%d, %d, %dx%d",
- suggestedVideoBufferSize, _videoBufferSize, _width, _height);
-
- _videoBufferSize = suggestedVideoBufferSize;
- }
-
- for (int i = 0; i < 2; i++) {
- _videoBuffer[i] = new byte[_videoBufferSize];
- memset(_videoBuffer[i], 0, _videoBufferSize);
- }
-
- return true;
-}
-
-bool IMDDecoder::assessAudioProperties() {
- if (_features & kFeaturesSound) {
- _soundFreq = _stream->readSint16LE();
- _soundSliceSize = _stream->readSint16LE();
- _soundSlicesCount = _stream->readSint16LE();
-
- if (_soundFreq < 0)
- _soundFreq = -_soundFreq;
-
- if (_soundSlicesCount < 0)
- _soundSlicesCount = -_soundSlicesCount - 1;
-
- if (_soundSlicesCount > 40) {
- warning("IMDDecoder::assessAudioProperties(): More than 40 sound slices found (%d)", _soundSlicesCount);
- return false;
- }
-
- _frameRate = Common::Rational(_soundFreq, _soundSliceSize);
-
- _hasSound = true;
- _soundEnabled = true;
- _soundStage = kSoundLoaded;
-
- _audioStream = Audio::makeQueuingAudioStream(_soundFreq, false);
- }
-
- return true;
-}
-
-bool IMDDecoder::loadFrameTables(uint32 framePosPos, uint32 frameCoordsPos) {
- // Positions table
- if (_framePos) {
- _stream->seek(framePosPos);
- for (uint32 i = 0; i < _frameCount; i++)
- _framePos[i] = _stream->readUint32LE();
- }
-
- // Coordinates table
- if (_features & kFeaturesFrameCoords) {
- _stream->seek(frameCoordsPos);
- _frameCoords = new Coord[_frameCount];
- assert(_frameCoords);
- for (uint32 i = 0; i < _frameCount; i++) {
- _frameCoords[i].left = _stream->readSint16LE();
- _frameCoords[i].top = _stream->readSint16LE();
- _frameCoords[i].right = _stream->readSint16LE();
- _frameCoords[i].bottom = _stream->readSint16LE();
- }
- }
-
- return true;
-}
-
-void IMDDecoder::close() {
- reset();
-
- CoktelDecoder::close();
-
- delete _stream;
-
- delete[] _framePos;
- delete[] _frameCoords;
-
- delete[] _videoBuffer[0];
- delete[] _videoBuffer[1];
-
- _stream = 0;
-
- _version = 0;
-
- _stdX = -1;
- _stdY = -1;
- _stdWidth = -1;
- _stdHeight = -1;
-
- _flags = 0;
-
- _firstFramePos = 0;
- _framePos = 0;
- _frameCoords = 0;
-
- _videoBufferSize = 0;
- _videoBuffer [0] = 0;
- _videoBuffer [1] = 0;
- _videoBufferLen[0] = 0;
- _videoBufferLen[1] = 0;
-
- _soundFlags = 0;
- _soundFreq = 0;
- _soundSliceSize = 0;
- _soundSlicesCount = 0;
-
- _hasSound = false;
- _soundEnabled = false;
- _soundStage = kSoundNone;
-}
-
-bool IMDDecoder::isVideoLoaded() const {
- return _stream != 0;
-}
-
-const Surface *IMDDecoder::decodeNextFrame() {
- if (!isVideoLoaded() || endOfVideo())
- return 0;
-
- createSurface();
-
- processFrame();
-
- if (_curFrame == 0)
- _startTime = g_system->getMillis();
-
- return &_surface;
-}
-
-void IMDDecoder::processFrame() {
- _curFrame++;
-
- _dirtyRects.clear();
-
- _paletteDirty = false;
-
- uint32 cmd = 0;
- bool hasNextCmd = false;
- bool startSound = false;
-
- do {
- cmd = _stream->readUint16LE();
-
- if ((cmd & kCommandBreakMask) == kCommandBreak) {
- // Flow control
-
- if (cmd == kCommandBreak) {
- _stream->skip(2);
- cmd = _stream->readUint16LE();
- }
-
- // Break
- if (cmd == kCommandBreakSkip0) {
- continue;
- } else if (cmd == kCommandBreakSkip16) {
- cmd = _stream->readUint16LE();
- _stream->skip(cmd);
- continue;
- } else if (cmd == kCommandBreakSkip32) {
- cmd = _stream->readUint32LE();
- _stream->skip(cmd);
- continue;
- }
- }
-
- // Audio
- if (cmd == kCommandNextSound) {
-
- nextSoundSlice(hasNextCmd);
- cmd = _stream->readUint16LE();
-
- } else if (cmd == kCommandStartSound) {
-
- startSound = initialSoundSlice(hasNextCmd);
- cmd = _stream->readUint16LE();
-
- } else
- emptySoundSlice(hasNextCmd);
-
- // Set palette
- if (cmd == kCommandPalette) {
- _stream->skip(2);
-
- _paletteDirty = true;
-
- for (int i = 0; i < 768; i++)
- _palette[i] = _stream->readByte() << 2;
-
- cmd = _stream->readUint16LE();
- }
-
- hasNextCmd = false;
-
- if (cmd == kCommandJump) {
- // Jump to frame
-
- int16 frame = _stream->readSint16LE();
- if (_framePos) {
- _curFrame = frame - 1;
- _stream->seek(_framePos[frame]);
-
- hasNextCmd = true;
- }
-
- } else if (cmd == kCommandVideoData) {
-
- _videoBufferLen[0] = _stream->readUint32LE() + 2;
- _stream->read(_videoBuffer[0], _videoBufferLen[0]);
-
- Common::Rect rect = calcFrameCoords(_curFrame);
-
- if (renderFrame(rect))
- _dirtyRects.push_back(rect);
-
- } else if (cmd != 0) {
-
- _videoBufferLen[0] = cmd + 2;
- _stream->read(_videoBuffer[0], _videoBufferLen[0]);
-
- Common::Rect rect = calcFrameCoords(_curFrame);
-
- if (renderFrame(rect))
- _dirtyRects.push_back(rect);
-
- }
-
- } while (hasNextCmd);
-
- // Start the audio stream if necessary
- if (startSound && _soundEnabled) {
- _mixer->playStream(_soundType, &_audioHandle, _audioStream,
- -1, Audio::Mixer::kMaxChannelVolume, 0, DisposeAfterUse::NO);
- _soundStage = kSoundPlaying;
- }
-
- // End the audio stream if necessary
- if ((_curFrame >= (int32)(_frameCount - 1)) && (_soundStage == kSoundPlaying)) {
- _audioStream->finish();
- _soundStage = kSoundFinished;
- }
-
-}
-
-Common::Rect IMDDecoder::calcFrameCoords(uint32 frame) {
- Common::Rect rect;
-
- if (frame == 0) {
- // First frame is always a full "keyframe"
-
- rect.left = _x;
- rect.top = _y;
- rect.right = _x + _width;
- rect.bottom = _y + _height;
- } else if (_frameCoords && ((_frameCoords[frame].left != -1))) {
- // We have frame coordinates for that frame
-
- rect.left = _frameCoords[frame].left;
- rect.top = _frameCoords[frame].top;
- rect.right = _frameCoords[frame].right + 1;
- rect.bottom = _frameCoords[frame].bottom + 1;
- } else if (_stdX != -1) {
- // We have standard coordinates
-
- rect.left = _stdX;
- rect.top = _stdY;
- rect.right = _stdX + _stdWidth;
- rect.bottom = _stdY + _stdHeight;
- } else {
- // Otherwise, it must be a full "keyframe"
-
- rect.left = _x;
- rect.top = _y;
- rect.right = _x + _width;
- rect.bottom = _y + _height;
- }
-
- return rect;
-}
-
-bool IMDDecoder::renderFrame(Common::Rect &rect) {
- if (!rect.isValidRect())
- // Invalid rendering area
- return false;
-
- // Clip the rendering area to the video's visible area
- rect.clip(Common::Rect(_x, _y, _x + _width, _y + _height));
- if (!rect.isValidRect() || rect.isEmpty())
- // Result is empty => nothing to do
- return false;
-
- byte *dataPtr = _videoBuffer[0];
- uint32 dataSize = _videoBufferLen[0] - 1;
-
- uint8 type = *dataPtr++;
-
- if (type & 0x10) {
- // Palette data
-
- // One byte index
- int index = *dataPtr++;
-
- int count = MIN((255 - index) * 3, 48);
- for (int i = 0; i < count; i++)
- _palette[index * 3 + i] = dataPtr[i] << 2;
-
- dataPtr += 48;
- dataSize -= 49;
- type ^= 0x10;
-
- _paletteDirty = true;
- }
-
- if (type & 0x80) {
- // Frame data is compressed
-
- type &= 0x7F;
-
- if ((type == 2) && (rect.width() == _surface.w) && (_x == 0)) {
- // Directly uncompress onto the video surface
- deLZ77((byte *)_surface.pixels + (_y * _surface.pitch), dataPtr, dataSize,
- _surface.w * _surface.h * _surface.bytesPerPixel);
- return true;
- }
-
- _videoBufferLen[1] = deLZ77(_videoBuffer[1], dataPtr, dataSize, _videoBufferSize);
-
- dataPtr = _videoBuffer[1];
- dataSize = _videoBufferLen[1];
- }
-
- // Evaluate the block type
- if (type == 0x01)
- renderBlockSparse (_surface, dataPtr, rect);
- else if (type == 0x02)
- renderBlockWhole (_surface, dataPtr, rect);
- else if (type == 0x42)
- renderBlockWhole4X (_surface, dataPtr, rect);
- else if ((type & 0x0F) == 0x02)
- renderBlockWhole2Y (_surface, dataPtr, rect);
- else
- renderBlockSparse2Y(_surface, dataPtr, rect);
-
- return true;
-}
-
-void IMDDecoder::nextSoundSlice(bool hasNextCmd) {
- if (hasNextCmd || !_soundEnabled || !_audioStream) {
- // Skip sound
-
- _stream->skip(_soundSliceSize);
- return;
- }
-
- // Read, convert, queue
-
- byte *soundBuf = (byte *)malloc(_soundSliceSize);
-
- _stream->read(soundBuf, _soundSliceSize);
- unsignedToSigned(soundBuf, _soundSliceSize);
-
- _audioStream->queueBuffer(soundBuf, _soundSliceSize, DisposeAfterUse::YES, 0);
-}
-
-bool IMDDecoder::initialSoundSlice(bool hasNextCmd) {
- int dataLength = _soundSliceSize * _soundSlicesCount;
-
- if (hasNextCmd || !_soundEnabled) {
- // Skip sound
-
- _stream->skip(dataLength);
- return false;
- }
-
- if (!_audioStream || (_soundStage == kSoundFinished)) {
- delete _audioStream;
-
- _audioStream = Audio::makeQueuingAudioStream(_soundFreq, false);
- _soundStage = kSoundLoaded;
- }
-
- // Read, convert, queue
-
- byte *soundBuf = (byte *)malloc(dataLength);
-
- _stream->read(soundBuf, dataLength);
- unsignedToSigned(soundBuf, dataLength);
-
- _audioStream->queueBuffer(soundBuf, dataLength, DisposeAfterUse::YES, 0);
-
- return _soundStage == kSoundLoaded;
-}
-
-void IMDDecoder::emptySoundSlice(bool hasNextCmd) {
- if (hasNextCmd || !_soundEnabled || !_audioStream)
- return;
-
- // Create an empty sound buffer and queue it
-
- byte *soundBuf = (byte *)malloc(_soundSliceSize);
-
- memset(soundBuf, 0, _soundSliceSize);
-
- _audioStream->queueBuffer(soundBuf, _soundSliceSize, DisposeAfterUse::YES, 0);
-}
-
-PixelFormat IMDDecoder::getPixelFormat() const {
- return PixelFormat::createFormatCLUT8();
-}
-
-
-VMDDecoder::File::File() {
- offset = 0;
- size = 0;
- realSize = 0;
-}
-
-
-VMDDecoder::Part::Part() {
- type = kPartTypeSeparator;
- field_1 = 0;
- field_E = 0;
- size = 0;
- left = 0;
- top = 0;
- right = 0;
- bottom = 0;
- id = 0;
- flags = 0;
-}
-
-
-VMDDecoder::Frame::Frame() {
- parts = 0;
- offset = 0;
-}
-
-VMDDecoder::Frame::~Frame() {
- delete[] parts;
-}
-
-
-const uint16 VMDDecoder::_tableDPCM[128] = {
- 0x0000, 0x0008, 0x0010, 0x0020, 0x0030, 0x0040, 0x0050, 0x0060, 0x0070, 0x0080,
- 0x0090, 0x00A0, 0x00B0, 0x00C0, 0x00D0, 0x00E0, 0x00F0, 0x0100, 0x0110, 0x0120,
- 0x0130, 0x0140, 0x0150, 0x0160, 0x0170, 0x0180, 0x0190, 0x01A0, 0x01B0, 0x01C0,
- 0x01D0, 0x01E0, 0x01F0, 0x0200, 0x0208, 0x0210, 0x0218, 0x0220, 0x0228, 0x0230,
- 0x0238, 0x0240, 0x0248, 0x0250, 0x0258, 0x0260, 0x0268, 0x0270, 0x0278, 0x0280,
- 0x0288, 0x0290, 0x0298, 0x02A0, 0x02A8, 0x02B0, 0x02B8, 0x02C0, 0x02C8, 0x02D0,
- 0x02D8, 0x02E0, 0x02E8, 0x02F0, 0x02F8, 0x0300, 0x0308, 0x0310, 0x0318, 0x0320,
- 0x0328, 0x0330, 0x0338, 0x0340, 0x0348, 0x0350, 0x0358, 0x0360, 0x0368, 0x0370,
- 0x0378, 0x0380, 0x0388, 0x0390, 0x0398, 0x03A0, 0x03A8, 0x03B0, 0x03B8, 0x03C0,
- 0x03C8, 0x03D0, 0x03D8, 0x03E0, 0x03E8, 0x03F0, 0x03F8, 0x0400, 0x0440, 0x0480,
- 0x04C0, 0x0500, 0x0540, 0x0580, 0x05C0, 0x0600, 0x0640, 0x0680, 0x06C0, 0x0700,
- 0x0740, 0x0780, 0x07C0, 0x0800, 0x0900, 0x0A00, 0x0B00, 0x0C00, 0x0D00, 0x0E00,
- 0x0F00, 0x1000, 0x1400, 0x1800, 0x1C00, 0x2000, 0x3000, 0x4000
-};
-
-const int32 VMDDecoder::_tableADPCM[] = {
- 7, 8, 9, 10, 11, 12, 13, 14,
- 16, 17, 19, 21, 23, 25, 28, 31,
- 34, 37, 41, 45, 50, 55, 60, 66,
- 73, 80, 88, 97, 107, 118, 130, 143,
- 157, 173, 190, 209, 230, 253, 279, 307,
- 337, 371, 408, 449, 494, 544, 598, 658,
- 724, 796, 876, 963, 1060, 1166, 1282, 1411,
- 1552, 1707, 1878, 2066, 2272, 2499, 2749, 3024,
- 3327, 3660, 4026, 4428, 4871, 5358, 5894, 6484,
- 7132, 7845, 8630, 9493, 10442, 11487, 12635, 13899,
- 15289, 16818, 18500, 20350, 22385, 24623, 27086, 29794,
- 32767, 0
-};
-
-const int32 VMDDecoder::_tableADPCMStep[] = {
- -1, -1, -1, -1, 2, 4, 6, 8,
- -1, -1, -1, -1, 2, 4, 6, 8
-};
-
-VMDDecoder::VMDDecoder(Audio::Mixer *mixer, Audio::Mixer::SoundType soundType) : CoktelDecoder(mixer, soundType),
- _stream(0), _version(0), _flags(0), _frameInfoOffset(0), _partsPerFrame(0), _frames(0),
- _soundFlags(0), _soundFreq(0), _soundSliceSize(0), _soundSlicesCount(0),
- _soundBytesPerSample(0), _soundStereo(0), _soundHeaderSize(0), _soundDataSize(0),
- _audioFormat(kAudioFormat8bitRaw), _hasVideo(false), _videoCodec(0),
- _blitMode(0), _bytesPerPixel(0), _firstFramePos(0), _videoBufferSize(0),
- _externalCodec(false), _codec(0), _subtitle(-1), _isPaletted(true) {
-
- _videoBuffer [0] = 0;
- _videoBuffer [1] = 0;
- _videoBuffer [2] = 0;
- _videoBufferLen[0] = 0;
- _videoBufferLen[1] = 0;
- _videoBufferLen[2] = 0;
-}
-
-VMDDecoder::~VMDDecoder() {
- close();
-}
-
-bool VMDDecoder::seek(int32 frame, int whence, bool restart) {
- if (!evaluateSeekFrame(frame, whence))
- return false;
-
- if (frame == _curFrame)
- // Nothing to do
- return true;
-
- // Restart sound
- if (_hasSound && (frame == -1) &&
- ((_soundStage == kSoundNone) || (_soundStage == kSoundFinished))) {
-
- delete _audioStream;
-
- _soundStage = kSoundLoaded;
- _audioStream = Audio::makeQueuingAudioStream(_soundFreq, _soundStereo != 0);
- }
-
- _subtitle = -1;
-
- if ((_blitMode > 0) && (_flags & 0x4000)) {
- if (_curFrame > frame) {
- _stream->seek(_frames[0].offset);
- _curFrame = -1;
- }
-
- while (frame > _curFrame)
- decodeNextFrame();
-
- return true;
- }
-
- // Seek
- _stream->seek(_frames[frame + 1].offset);
- _curFrame = frame;
- _startTime = g_system->getMillis() - ((frame + 2) * getStaticTimeToNextFrame());
-
-
- return true;
-}
-
-void VMDDecoder::setXY(uint16 x, uint16 y) {
- uint16 curX = _x;
- uint16 setX = x;
-
- if ((x != 0xFFFF) && (_blitMode == 1)) {
- curX *= _bytesPerPixel;
- setX *= _bytesPerPixel;
- }
-
- for (uint32 i = 0; i < _frameCount; i++) {
- for (int j = 0; j < _partsPerFrame; j++) {
-
- if (_frames[i].parts[j].type == kPartTypeVideo) {
- if (x != 0xFFFF) {
- _frames[i].parts[j].left = _frames[i].parts[j].left - curX + setX;
- _frames[i].parts[j].right = _frames[i].parts[j].right - curX + setX;
- }
- if (y != 0xFFFF) {
- _frames[i].parts[j].top = _frames[i].parts[j].top - _y + y;
- _frames[i].parts[j].bottom = _frames[i].parts[j].bottom - _y + y;
- }
- }
-
- }
- }
-
- if (x != 0xFFFF)
- _x = x;
- if (y != 0xFFFF)
- _y = y;
-}
-
-bool VMDDecoder::openExternalCodec() {
- delete _codec;
- _codec = 0;
-
- if (_externalCodec) {
- if (_videoCodec == kVideoCodecIndeo3) {
- _isPaletted = false;
-
-#ifdef USE_INDEO3
- _codec = new Indeo3Decoder(_width, _height);
-#else
- warning("VMDDecoder::openExternalCodec(): Indeo3 decoder not compiled in");
-#endif
-
- } else {
- warning("VMDDecoder::openExternalCodec(): Unknown video codec FourCC \"%s\"",
- tag2str(_videoCodec));
- return false;
- }
- }
-
- return true;
-}
-
-void VMDDecoder::colorModeChanged() {
- openExternalCodec();
-}
-
-bool VMDDecoder::load(Common::SeekableReadStream *stream) {
- close();
-
- _stream = stream;
-
- _stream->seek(0);
-
- uint16 headerLength;
- uint16 handle;
-
- headerLength = _stream->readUint16LE();
- handle = _stream->readUint16LE();
- _version = _stream->readUint16LE();
-
- // Version checking
- if (headerLength == 50) {
- // Newer version, used in Addy 5 upwards
- warning("VMDDecoder::load(): TODO: Addy 5 videos");
- } else if (headerLength == 814) {
- // Old version
- _features |= kFeaturesPalette;
- } else {
- warning("VMDDecoder::load(): Version incorrect (%d, %d, %d)", headerLength, handle, _version);
- close();
- return false;
- }
-
- _frameCount = _stream->readUint16LE();
-
- _defaultX = _stream->readSint16LE();
- _defaultY = _stream->readSint16LE();
- _width = _stream->readSint16LE();
- _height = _stream->readSint16LE();
-
- _x = _defaultX;
- _y = _defaultY;
-
- if ((_width != 0) && (_height != 0)) {
-
- _hasVideo = true;
- _features |= kFeaturesVideo;
-
- } else
- _hasVideo = false;
-
- _bytesPerPixel = 1;
- if (_version & 4)
- _bytesPerPixel = handle + 1;
-
- if (_bytesPerPixel > 3) {
- warning("VMDDecoder::load(): Requested %d bytes per pixel (%d, %d, %d)",
- _bytesPerPixel, headerLength, handle, _version);
- close();
- return false;
- }
-
- _flags = _stream->readUint16LE();
-
- _partsPerFrame = _stream->readUint16LE();
- _firstFramePos = _stream->readUint32LE();
-
- _videoCodec = _stream->readUint32BE();
-
- if (_features & kFeaturesPalette) {
- for (int i = 0; i < 768; i++)
- _palette[i] = _stream->readByte() << 2;
-
- _paletteDirty = true;
- }
-
- uint32 videoBufferSize1 = _stream->readUint32LE();
- uint32 videoBufferSize2 = _stream->readUint32LE();
-
- _videoBufferSize = MAX(videoBufferSize1, videoBufferSize2);
-
- if (_hasVideo) {
- if (!assessVideoProperties()) {
- close();
- return false;
- }
- }
-
- _soundFreq = _stream->readSint16LE();
- _soundSliceSize = _stream->readSint16LE();
- _soundSlicesCount = _stream->readSint16LE();
- _soundFlags = _stream->readUint16LE();
-
- _hasSound = (_soundFreq != 0);
-
- if (_hasSound) {
- if (!assessAudioProperties()) {
- close();
- return false;
- }
- } else
- _frameRate = 12;
-
- _frameInfoOffset = _stream->readUint32LE();
-
- int numFiles;
- if (!readFrameTable(numFiles)) {
- close();
- return false;
- }
-
- _stream->seek(_firstFramePos);
-
- if (numFiles == 0)
- return true;
-
- _files.reserve(numFiles);
- if (!readFiles()) {
- close();
- return false;
- }
-
- _stream->seek(_firstFramePos);
- return true;
-}
-
-bool VMDDecoder::assessVideoProperties() {
- _isPaletted = true;
-
- if ((_version & 2) && !(_version & 8)) {
- _externalCodec = true;
- _videoBufferSize = 0;
- } else
- _externalCodec = false;
-
- if (!openExternalCodec())
- return false;
-
- if (_externalCodec)
- _blitMode = 0;
- else if (_bytesPerPixel == 1)
- _blitMode = 0;
- else if ((_bytesPerPixel == 2) || (_bytesPerPixel == 3)) {
- int n = (_flags & 0x80) ? 2 : 3;
-
- _blitMode = _bytesPerPixel - 1;
- _bytesPerPixel = n;
-
- _isPaletted = false;
- }
-
- if (_blitMode == 1) {
- _width /= _bytesPerPixel;
- _defaultX /= _bytesPerPixel;
- _x /= _bytesPerPixel;
- }
-
- if (_hasVideo) {
- uint32 suggestedVideoBufferSize = _videoBufferSize;
-
- _videoBufferSize = _width * _height * _bytesPerPixel + 1000;
-
- if ((suggestedVideoBufferSize > _videoBufferSize) && (suggestedVideoBufferSize < 2097152)) {
- warning("Suggested video buffer size greater than what should be needed (%d, %d, %dx%d",
- suggestedVideoBufferSize, _videoBufferSize, _width, _height);
-
- _videoBufferSize = suggestedVideoBufferSize;
- }
-
- for (int i = 0; i < 3; i++) {
- _videoBuffer[i] = new byte[_videoBufferSize];
- memset(_videoBuffer[i], 0, _videoBufferSize);
-
- _8bppSurface[i].w = _width * _bytesPerPixel;
- _8bppSurface[i].h = _height;
- _8bppSurface[i].pitch = _width * _bytesPerPixel;
- _8bppSurface[i].pixels = _videoBuffer[i];
- _8bppSurface[i].bytesPerPixel = 1;
- }
- }
-
- return true;
-}
-
-bool VMDDecoder::assessAudioProperties() {
- bool supportedFormat = true;
-
- _features |= kFeaturesSound;
-
- _soundStereo = (_soundFlags & 0x8000) ? 1 : ((_soundFlags & 0x200) ? 2 : 0);
-
- if (_soundSliceSize < 0) {
- _soundBytesPerSample = 2;
- _soundSliceSize = -_soundSliceSize;
-
- if (_soundFlags & 0x10) {
- _audioFormat = kAudioFormat16bitADPCM;
- _soundHeaderSize = 3;
- _soundDataSize = _soundSliceSize >> 1;
-
- if (_soundStereo > 0)
- supportedFormat = false;
-
- } else {
- _audioFormat = kAudioFormat16bitDPCM;
- _soundHeaderSize = 1;
- _soundDataSize = _soundSliceSize;
-
- if (_soundStereo == 1) {
- supportedFormat = false;
- } else if (_soundStereo == 2) {
- _soundDataSize = 2 * _soundDataSize + 2;
- _soundHeaderSize = 4;
- }
-
- }
- } else {
- _soundBytesPerSample = 1;
- _audioFormat = kAudioFormat8bitRaw;
- _soundHeaderSize = 0;
- _soundDataSize = _soundSliceSize;
-
- if (_soundStereo > 0)
- supportedFormat = false;
- }
-
- if (!supportedFormat) {
- warning("VMDDecoder::assessAudioProperties(): Unsupported audio format: %d bits, encoding %d, stereo %d",
- _soundBytesPerSample * 8, _audioFormat, _soundStereo);
- return false;
- }
-
- _frameRate = Common::Rational(_soundFreq, _soundSliceSize);
-
- _hasSound = true;
- _soundEnabled = true;
- _soundStage = kSoundLoaded;
-
- _audioStream = Audio::makeQueuingAudioStream(_soundFreq, _soundStereo != 0);
-
- return true;
-}
-
-bool VMDDecoder::readFrameTable(int &numFiles) {
- numFiles = 0;
-
- _stream->seek(_frameInfoOffset);
- _frames = new Frame[_frameCount];
- for (uint16 i = 0; i < _frameCount; i++) {
- _frames[i].parts = new Part[_partsPerFrame];
- _stream->skip(2); // Unknown
- _frames[i].offset = _stream->readUint32LE();
- }
-
- for (uint16 i = 0; i < _frameCount; i++) {
- bool separator = false;
-
- for (uint16 j = 0; j < _partsPerFrame; j++) {
-
- _frames[i].parts[j].type = (PartType) _stream->readByte();
- _frames[i].parts[j].field_1 = _stream->readByte();
- _frames[i].parts[j].size = _stream->readUint32LE();
-
- if (_frames[i].parts[j].type == kPartTypeAudio) {
-
- _frames[i].parts[j].flags = _stream->readByte();
- _stream->skip(9); // Unknown
-
- } else if (_frames[i].parts[j].type == kPartTypeVideo) {
-
- _frames[i].parts[j].left = _stream->readUint16LE();
- _frames[i].parts[j].top = _stream->readUint16LE();
- _frames[i].parts[j].right = _stream->readUint16LE();
- _frames[i].parts[j].bottom = _stream->readUint16LE();
- _frames[i].parts[j].field_E = _stream->readByte();
- _frames[i].parts[j].flags = _stream->readByte();
-
- } else if (_frames[i].parts[j].type == kPartTypeSubtitle) {
- _frames[i].parts[j].id = _stream->readUint16LE();
- // Speech text file name
- _stream->skip(8);
- } else if (_frames[i].parts[j].type == kPartTypeFile) {
- if (!separator)
- numFiles++;
- _stream->skip(10);
- } else if (_frames[i].parts[j].type == kPartTypeSeparator) {
- separator = true;
- _stream->skip(10);
- } else {
- // Unknown type
- _stream->skip(10);
- }
-
- }
- }
-
- return true;
-}
-
-bool VMDDecoder::readFiles() {
- uint32 ssize = _stream->size();
- for (uint16 i = 0; i < _frameCount; i++) {
- _stream->seek(_frames[i].offset);
-
- for (uint16 j = 0; j < _partsPerFrame; j++) {
- if (_frames[i].parts[j].type == kPartTypeSeparator)
- break;
-
- if (_frames[i].parts[j].type == kPartTypeFile) {
- File file;
-
- file.offset = _stream->pos() + 20;
- file.size = _frames[i].parts[j].size;
- file.realSize = _stream->readUint32LE();
-
- char name[16];
-
- _stream->read(name, 16);
- name[15] = '\0';
-
- file.name = name;
-
- _stream->skip(_frames[i].parts[j].size - 20);
-
- if ((((uint32) file.realSize) >= ssize) || (file.name == ""))
- continue;
-
- _files.push_back(file);
-
- } else
- _stream->skip(_frames[i].parts[j].size);
- }
- }
-
- return true;
-}
-
-void VMDDecoder::close() {
- reset();
-
- CoktelDecoder::close();
-
- delete _stream;
-
- delete[] _frames;
-
- delete[] _videoBuffer[0];
- delete[] _videoBuffer[1];
- delete[] _videoBuffer[2];
-
- delete _codec;
-
- _files.clear();
-
-
- _stream = 0;
-
- _version = 0;
- _flags = 0;
-
- _frameInfoOffset = 0;
- _partsPerFrame = 0;
- _frames = 0;
-
- _soundFlags = 0;
- _soundFreq = 0;
- _soundSliceSize = 0;
- _soundSlicesCount = 0;
- _soundBytesPerSample = 0;
- _soundStereo = 0;
- _soundHeaderSize = 0;
- _soundDataSize = 0;
- _audioFormat = kAudioFormat8bitRaw;
-
- _hasVideo = false;
- _videoCodec = 0;
- _blitMode = 0;
- _bytesPerPixel = 0;
-
- _firstFramePos = 0;
-
- _videoBufferSize = 0;
- _videoBuffer [0] = 0;
- _videoBuffer [1] = 0;
- _videoBuffer [2] = 0;
- _videoBufferLen[0] = 0;
- _videoBufferLen[1] = 0;
- _videoBufferLen[2] = 0;
-
- _externalCodec = false;
- _codec = 0;
-
- _isPaletted = true;
-}
-
-bool VMDDecoder::isVideoLoaded() const {
- return _stream != 0;
-}
-
-const Surface *VMDDecoder::decodeNextFrame() {
- if (!isVideoLoaded() || endOfVideo())
- return 0;
-
- createSurface();
-
- processFrame();
-
- if (_curFrame == 0)
- _startTime = g_system->getMillis();
-
- return &_surface;
-}
-
-void VMDDecoder::processFrame() {
- _curFrame++;
-
- _dirtyRects.clear();
-
- _paletteDirty = false;
- _subtitle = -1;
-
- bool startSound = false;
-
- for (uint16 i = 0; i < _partsPerFrame; i++) {
- uint32 pos = _stream->pos();
-
- Part &part = _frames[_curFrame].parts[i];
-
- if (part.type == kPartTypeAudio) {
-
- if (part.flags == 1) {
- // Next sound slice data
-
- if (_soundEnabled) {
- filledSoundSlice(part.size);
-
- if (_soundStage == kSoundLoaded)
- startSound = true;
-
- } else
- _stream->skip(part.size);
-
- } else if (part.flags == 2) {
- // Initial sound data (all slices)
-
- if (_soundEnabled) {
- uint32 mask = _stream->readUint32LE();
- filledSoundSlices(part.size - 4, mask);
-
- if (_soundStage == kSoundLoaded)
- startSound = true;
-
- } else
- _stream->skip(part.size);
-
- } else if (part.flags == 3) {
- // Empty sound slice
-
- if (_soundEnabled) {
- emptySoundSlice(_soundDataSize * _soundBytesPerSample);
-
- if (_soundStage == kSoundLoaded)
- startSound = true;
- }
-
- _stream->skip(part.size);
- } else if (part.flags == 4) {
- warning("VMDDecoder::processFrame(): TODO: Addy 5 sound type 4 (%d)", part.size);
- disableSound();
- _stream->skip(part.size);
- } else {
- warning("VMDDecoder::processFrame(): Unknown sound type %d", part.flags);
- _stream->skip(part.size);
- }
-
- _stream->seek(pos + part.size);
-
- } else if ((part.type == kPartTypeVideo) && !_hasVideo) {
-
- warning("VMDDecoder::processFrame(): Header claims there's no video, but video found (%d)", part.size);
- _stream->skip(part.size);
-
- } else if ((part.type == kPartTypeVideo) && _hasVideo) {
-
- uint32 size = part.size;
-
- // New palette
- if (part.flags & 2) {
- uint8 index = _stream->readByte();
- uint8 count = _stream->readByte();
-
- for (int j = 0; j < ((count + 1) * 3); j++)
- _palette[index * 3 + j] = _stream->readByte() << 2;
-
- _stream->skip((255 - count) * 3);
-
- _paletteDirty = true;
-
- size -= (768 + 2);
- }
-
- _stream->read(_videoBuffer[0], size);
- _videoBufferLen[0] = size;
-
- Common::Rect rect(part.left, part.top, part.right + 1, part.bottom + 1);
- if (renderFrame(rect))
- _dirtyRects.push_back(rect);
-
- } else if (part.type == kPartTypeSeparator) {
-
- // Ignore
-
- } else if (part.type == kPartTypeFile) {
-
- // Ignore
- _stream->skip(part.size);
-
- } else if (part.type == kPartType4) {
-
- // Unknown, ignore
- _stream->skip(part.size);
-
- } else if (part.type == kPartTypeSubtitle) {
-
- _subtitle = part.id;
- _stream->skip(part.size);
-
- } else {
-
- warning("VMDDecoder::processFrame(): Unknown frame part type %d, size %d (%d of %d)",
- part.type, part.size, i + 1, _partsPerFrame);
-
- }
- }
-
- if (startSound && _soundEnabled) {
- if (_hasSound && _audioStream) {
- _mixer->playStream(_soundType, &_audioHandle, _audioStream,
- -1, Audio::Mixer::kMaxChannelVolume, 0, DisposeAfterUse::NO);
- _soundStage = kSoundPlaying;
- } else
- _soundStage = kSoundNone;
- }
-
- if (((uint32)_curFrame == (_frameCount - 1)) && (_soundStage == 2)) {
- _audioStream->finish();
- _soundStage = kSoundFinished;
- }
-}
-
-bool VMDDecoder::renderFrame(Common::Rect &rect) {
- Common::Rect realRect, fakeRect;
- if (!getRenderRects(rect, realRect, fakeRect))
- return false;
-
- if (_externalCodec) {
- if (!_codec)
- return false;
-
- Common::MemoryReadStream frameStream(_videoBuffer[0], _videoBufferLen[0]);
- const Surface *codecSurf = _codec->decodeImage(&frameStream);
- if (!codecSurf)
- return false;
-
- rect = Common::Rect(_x, _y, _x + codecSurf->w, _y + codecSurf->h);
- rect.clip(Common::Rect(_x, _y, _x + _width, _y + _height));
-
- renderBlockWhole(_surface, (const byte *) codecSurf->pixels, rect);
- return true;
- }
-
- uint8 srcBuffer = 0;
- byte *dataPtr = _videoBuffer[srcBuffer];
- uint32 dataSize = _videoBufferLen[srcBuffer] - 1;
-
- uint8 type = *dataPtr++;
-
- if (type & 0x80) {
- // Frame data is compressed
-
- type &= 0x7F;
-
- if ((type == 2) && (rect.width() == _surface.w) && (_x == 0) && (_blitMode == 0)) {
- // Directly uncompress onto the video surface
- deLZ77((byte *)_surface.pixels + (_y * _surface.pitch), dataPtr, dataSize,
- _surface.w * _surface.h * _surface.bytesPerPixel);
- return true;
- }
-
- srcBuffer = 1;
- _videoBufferLen[srcBuffer] =
- deLZ77(_videoBuffer[srcBuffer], dataPtr, dataSize, _videoBufferSize);
-
- dataPtr = _videoBuffer[srcBuffer];
- dataSize = _videoBufferLen[srcBuffer];
- }
-
- Common::Rect *blockRect = &fakeRect;
- Surface *surface = &_surface;
- if (_blitMode == 0) {
- *blockRect = Common::Rect(blockRect->left + _x, blockRect->top + _y,
- blockRect->right + _x, blockRect->bottom + _y);
- } else {
- surface = &_8bppSurface[2];
- }
-
- // Evaluate the block type
- if (type == 0x01)
- renderBlockSparse (*surface, dataPtr, *blockRect);
- else if (type == 0x02)
- renderBlockWhole (*surface, dataPtr, *blockRect);
- else if (type == 0x03)
- renderBlockRLE (*surface, dataPtr, *blockRect);
- else if (type == 0x42)
- renderBlockWhole4X (*surface, dataPtr, *blockRect);
- else if ((type & 0x0F) == 0x02)
- renderBlockWhole2Y (*surface, dataPtr, *blockRect);
- else
- renderBlockSparse2Y(*surface, dataPtr, *blockRect);
-
- if (_blitMode > 0) {
- if (_bytesPerPixel == 2)
- blit16(*surface, *blockRect);
- else if (_bytesPerPixel == 3)
- blit24(*surface, *blockRect);
-
- *blockRect = Common::Rect(blockRect->left + _x, blockRect->top + _y,
- blockRect->right + _x, blockRect->bottom + _y);
- }
-
- rect = *blockRect;
- return true;
-}
-
-bool VMDDecoder::getRenderRects(const Common::Rect &rect,
- Common::Rect &realRect, Common::Rect &fakeRect) {
-
- realRect = rect;
- fakeRect = rect;
-
- if (_blitMode == 0) {
-
- realRect = Common::Rect(realRect.left - _x, realRect.top - _y,
- realRect.right - _x, realRect.bottom - _y);
-
- fakeRect = Common::Rect(fakeRect.left - _x, fakeRect.top - _y,
- fakeRect.right - _x, fakeRect.bottom - _y);
-
- } else if (_blitMode == 1) {
-
- realRect = Common::Rect(rect.left / _bytesPerPixel, rect.top,
- rect.right / _bytesPerPixel, rect.bottom);
-
- realRect = Common::Rect(realRect.left - _x, realRect.top - _y,
- realRect.right - _x, realRect.bottom - _y);
-
- fakeRect = Common::Rect(fakeRect.left - _x * _bytesPerPixel, fakeRect.top - _y,
- fakeRect.right - _x * _bytesPerPixel, fakeRect.bottom - _y);
-
- } else if (_blitMode == 2) {
-
- fakeRect = Common::Rect(rect.left * _bytesPerPixel, rect.top,
- rect.right * _bytesPerPixel, rect.bottom);
-
- realRect = Common::Rect(realRect.left - _x, realRect.top - _y,
- realRect.right - _x, realRect.bottom - _y);
-
- fakeRect = Common::Rect(fakeRect.left - _x * _bytesPerPixel, fakeRect.top - _y,
- fakeRect.right - _x * _bytesPerPixel, fakeRect.bottom - _y);
-
- }
-
- realRect.clip(Common::Rect(_surface.w, _surface.h));
- fakeRect.clip(Common::Rect(_surface.w * _bytesPerPixel, _surface.h));
-
- if (!realRect.isValidRect() || realRect.isEmpty())
- return false;
- if (!fakeRect.isValidRect() || realRect.isEmpty())
- return false;
-
- return true;
-}
-
-void VMDDecoder::blit16(const Surface &srcSurf, Common::Rect &rect) {
- rect = Common::Rect(rect.left / 2, rect.top, rect.right / 2, rect.bottom);
-
- Common::Rect srcRect = rect;
-
- rect.clip(_surface.w, _surface.h);
-
- PixelFormat pixelFormat = getPixelFormat();
-
- const byte *src = (byte *)srcSurf.pixels +
- (srcRect.top * srcSurf.pitch) + srcRect.left * _bytesPerPixel;
- byte *dst = (byte *)_surface.pixels +
- ((_y + rect.top) * _surface.pitch) + (_x + rect.left) * _surface.bytesPerPixel;
-
- for (int i = 0; i < rect.height(); i++) {
- const byte *srcRow = src;
- byte *dstRow = dst;
-
- for (int j = 0; j < rect.width(); j++, srcRow += 2, dstRow += _surface.bytesPerPixel) {
- uint16 data = READ_LE_UINT16(srcRow);
-
- byte r = ((data & 0x7C00) >> 10) << 3;
- byte g = ((data & 0x03E0) >> 5) << 3;
- byte b = ((data & 0x001F) >> 0) << 3;
-
- uint32 c = pixelFormat.RGBToColor(r, g, b);
- if ((r == 0) && (g == 0) && (b == 0))
- c = 0;
-
- if (_surface.bytesPerPixel == 2)
- *((uint16 *)dstRow) = (uint16) c;
- }
-
- src += srcSurf .pitch;
- dst += _surface.pitch;
- }
-}
-
-void VMDDecoder::blit24(const Surface &srcSurf, Common::Rect &rect) {
- rect = Common::Rect(rect.left / 3, rect.top, rect.right / 3, rect.bottom);
-
- Common::Rect srcRect = rect;
-
- rect.clip(_surface.w, _surface.h);
-
- PixelFormat pixelFormat = getPixelFormat();
-
- const byte *src = (byte *)srcSurf.pixels +
- (srcRect.top * srcSurf.pitch) + srcRect.left * _bytesPerPixel;
- byte *dst = (byte *)_surface.pixels +
- ((_y + rect.top) * _surface.pitch) + (_x + rect.left) * _surface.bytesPerPixel;
-
- for (int i = 0; i < rect.height(); i++) {
- const byte *srcRow = src;
- byte *dstRow = dst;
-
- for (int j = 0; j < rect.width(); j++, srcRow += 3, dstRow += _surface.bytesPerPixel) {
- byte r = srcRow[2];
- byte g = srcRow[1];
- byte b = srcRow[0];
-
- uint32 c = pixelFormat.RGBToColor(r, g, b);
- if ((r == 0) && (g == 0) && (b == 0))
- c = 0;
-
- if (_surface.bytesPerPixel == 2)
- *((uint16 *)dstRow) = (uint16) c;
- }
-
- src += srcSurf .pitch;
- dst += _surface.pitch;
- }
-}
-
-void VMDDecoder::emptySoundSlice(uint32 size) {
- byte *sound = soundEmpty(size);
-
- if (sound) {
- uint32 flags = 0;
- flags |= (_soundBytesPerSample == 2) ? Audio::FLAG_16BITS : 0;
- flags |= (_soundStereo > 0) ? Audio::FLAG_STEREO : 0;
-
- _audioStream->queueBuffer(sound, size, DisposeAfterUse::YES, flags);
- }
-}
-
-void VMDDecoder::filledSoundSlice(uint32 size) {
- byte *sound = 0;
- if (_audioFormat == kAudioFormat8bitRaw)
- sound = sound8bitRaw(size);
- else if (_audioFormat == kAudioFormat16bitDPCM)
- sound = sound16bitDPCM(size);
- else if (_audioFormat == kAudioFormat16bitADPCM)
- sound = sound16bitADPCM(size);
-
- if (sound) {
- uint32 flags = 0;
- flags |= (_soundBytesPerSample == 2) ? Audio::FLAG_16BITS : 0;
- flags |= (_soundStereo > 0) ? Audio::FLAG_STEREO : 0;
-
- _audioStream->queueBuffer(sound, size, DisposeAfterUse::YES, flags);
- }
-}
-
-void VMDDecoder::filledSoundSlices(uint32 size, uint32 mask) {
- bool fillInfo[32];
-
- uint8 max;
- uint8 n = evaluateMask(mask, fillInfo, max);
-
- int32 extraSize;
-
- extraSize = size - n * _soundDataSize;
-
- if (_soundSlicesCount > 32)
- extraSize -= (_soundSlicesCount - 32) * _soundDataSize;
-
- if (n > 0)
- extraSize /= n;
-
- for (uint8 i = 0; i < max; i++)
- if (fillInfo[i])
- filledSoundSlice(_soundDataSize + extraSize);
- else
- emptySoundSlice(_soundDataSize * _soundBytesPerSample);
-
- if (_soundSlicesCount > 32)
- filledSoundSlice((_soundSlicesCount - 32) * _soundDataSize + _soundHeaderSize);
-}
-
-uint8 VMDDecoder::evaluateMask(uint32 mask, bool *fillInfo, uint8 &max) {
- max = MIN<int>(_soundSlicesCount - 1, 31);
-
- uint8 n = 0;
- for (int i = 0; i < max; i++) {
-
- if (!(mask & 1)) {
- n++;
- *fillInfo++ = true;
- } else
- *fillInfo++ = false;
-
- mask >>= 1;
- }
-
- return n;
-}
-
-byte *VMDDecoder::soundEmpty(uint32 &size) {
- if (!_audioStream)
- return 0;
-
- byte *soundBuf = (byte *)malloc(size);
- memset(soundBuf, 0, size);
-
- return soundBuf;
-}
-
-byte *VMDDecoder::sound8bitRaw(uint32 &size) {
- if (!_audioStream) {
- _stream->skip(size);
- return 0;
- }
-
- byte *soundBuf = (byte *)malloc(size);
- _stream->read(soundBuf, size);
- unsignedToSigned(soundBuf, size);
-
- return soundBuf;
-}
-
-byte *VMDDecoder::sound16bitDPCM(uint32 &size) {
- if (!_audioStream) {
- _stream->skip(size);
- return 0;
- }
-
- int32 init[2];
-
- init[0] = _stream->readSint16LE();
- size -= 2;
-
- if (_soundStereo > 0) {
- init[1] = _stream->readSint16LE();
- size -= 2;
- }
-
- byte *data = new byte[size];
- byte *sound = 0;
-
- if (_stream->read(data, size) == size)
- sound = deDPCM(data, size, init);
-
- delete[] data;
-
- return sound;
-}
-
-byte *VMDDecoder::sound16bitADPCM(uint32 &size) {
- if (!_audioStream) {
- _stream->skip(size);
- return 0;
- }
-
- int32 init = _stream->readSint16LE();
- size -= 2;
-
- int32 index = _stream->readByte();
- size--;
-
- byte *data = new byte[size];
- byte *sound = 0;
-
- if (_stream->read(data, size) == size)
- sound = deADPCM(data, size, init, index);
-
- delete[] data;
-
- return sound;
-}
-
-byte *VMDDecoder::deDPCM(const byte *data, uint32 &size, int32 init[2]) {
- if (!data || (size == 0))
- return 0;
-
- int channels = (_soundStereo > 0) ? 2 : 1;
-
- uint32 inSize = size;
- uint32 outSize = size + channels;
-
- int16 *out = (int16 *)malloc(outSize * 2);
- byte *sound = (byte *)out;
-
- if (!out)
- return 0;
-
- int channel = 0;
-
- for (int i = 0; i < channels; i++) {
- *out++ = TO_BE_16(init[channel]);
-
- channel = (channel + 1) % channels;
- }
-
- while (inSize-- > 0) {
- if (*data & 0x80)
- init[channel] -= _tableDPCM[*data++ & 0x7F];
- else
- init[channel] += _tableDPCM[*data++];
-
- init[channel] = CLIP<int32>(init[channel], -32768, 32767);
- *out++ = TO_BE_16(init[channel]);
-
- channel = (channel + 1) % channels;
- }
-
- size = outSize * 2;
- return sound;
-}
-
-// Yet another IMA ADPCM variant
-byte *VMDDecoder::deADPCM(const byte *data, uint32 &size, int32 init, int32 index) {
- if (!data || (size == 0))
- return 0;
-
- uint32 outSize = size * 2;
-
- int16 *out = (int16 *)malloc(outSize * 2);
- byte *sound = (byte *) out;
-
- index = CLIP<int32>(index, 0, 88);
-
- int32 predictor = _tableADPCM[index];
-
- uint32 dataByte = 0;
- bool newByte = true;
-
- size *= 2;
- while (size -- > 0) {
- byte code = 0;
-
- if (newByte) {
- dataByte = *data++;
- code = (dataByte >> 4) & 0xF;
- } else
- code = dataByte & 0xF;
-
- newByte = !newByte;
-
- index += _tableADPCMStep[code];
- index = CLIP<int32>(index, 0, 88);
-
- int32 value = predictor / 8;
-
- if (code & 4)
- value += predictor;
- if (code & 2)
- value += predictor / 2;
- if (code & 1)
- value += predictor / 4;
-
- if (code & 8)
- init -= value;
- else
- init += value;
-
- init = CLIP<int32>(init, -32768, 32767);
-
- predictor = _tableADPCM[index];
-
- *out++ = TO_BE_16(init);
- }
-
- size = outSize * 2;
- return sound;
-}
-
-PixelFormat VMDDecoder::getPixelFormat() const {
- if (_externalCodec) {
- if (_codec)
- return _codec->getPixelFormat();
-
- // If we don't have the needed codec, just assume it's in the
- // current screen format
- return g_system->getScreenFormat();
- }
-
- if (_blitMode > 0)
- return g_system->getScreenFormat();
-
- return PixelFormat::createFormatCLUT8();
-}
-
-bool VMDDecoder::getPartCoords(int16 frame, PartType type, int16 &x, int16 &y, int16 &width, int16 &height) {
- if (frame >= ((int32) _frameCount))
- return false;
-
- Frame &f = _frames[frame];
-
- // Look for a part matching the requested type, stopping at a separator
- Part *part = 0;
- for (int i = 0; i < _partsPerFrame; i++) {
- Part &p = f.parts[i];
-
- if ((p.type == kPartTypeSeparator) || (p.type == type)) {
- part = &p;
- break;
- }
- }
-
- if (!part)
- return false;
-
- x = part->left;
- y = part->top;
- width = part->right - part->left + 1;
- height = part->bottom - part->top + 1;
-
- return true;
-}
-
-bool VMDDecoder::getFrameCoords(int16 frame, int16 &x, int16 &y, int16 &width, int16 &height) {
- return getPartCoords(frame, kPartTypeVideo, x, y, width, height);
-}
-
-bool VMDDecoder::hasEmbeddedFiles() const {
- return !_files.empty();
-}
-
-bool VMDDecoder::hasEmbeddedFile(const Common::String &fileName) const {
- for (Common::Array<File>::const_iterator file = _files.begin(); file != _files.end(); ++file)
- if (!file->name.compareToIgnoreCase(fileName))
- return true;
-
- return false;
-}
-
-Common::SeekableReadStream *VMDDecoder::getEmbeddedFile(const Common::String &fileName) const {
- const File *file = 0;
-
- for (Common::Array<File>::const_iterator it = _files.begin(); it != _files.end(); ++it)
- if (!it->name.compareToIgnoreCase(fileName)) {
- file = &*it;
- break;
- }
-
- if (!file)
- return 0;
-
- if ((file->size - 20) != file->realSize) {
- warning("VMDDecoder::getEmbeddedFile(): Sizes for \"%s\" differ! (%d, %d)",
- fileName.c_str(), (file->size - 20), file->realSize);
- return 0;
- }
-
- if (!_stream->seek(file->offset)) {
- warning("VMDDecoder::getEmbeddedFile(): Can't seek to offset %d to (file \"%s\")",
- file->offset, fileName.c_str());
- return 0;
- }
-
- byte *data = (byte *) malloc(file->realSize);
- if (_stream->read(data, file->realSize) != file->realSize) {
- free(data);
- warning("VMDDecoder::getEmbeddedFile(): Couldn't read %d bytes (file \"%s\")",
- file->realSize, fileName.c_str());
- return 0;
- }
-
- Common::MemoryReadStream *stream =
- new Common::MemoryReadStream(data, file->realSize, DisposeAfterUse::YES);
-
- return stream;
-}
-
-int32 VMDDecoder::getSubtitleIndex() const {
- return _subtitle;
-}
-
-bool VMDDecoder::hasVideo() const {
- return _hasVideo;
-}
-
-bool VMDDecoder::isPaletted() const {
- return _isPaletted;
-}
-
-} // End of namespace Graphics
-
-#endif // GRAPHICS_VIDEO_COKTELDECODER_H
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