scummvm/engines/gob/videoplayer.cpp
Simon Delamarre fc8d530e51
GOB: protection from sound-only videos without proper flags in Adibou2
Such videos may try to allocate a Surface with null width/height.

Fix the jokes "jingle" of the radio in Adibou's house.
2022-12-02 11:44:34 +01:00

956 lines
25 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#include "video/coktel_decoder.h"
#include "gob/videoplayer.h"
#include "gob/global.h"
#include "gob/dataio.h"
#include "gob/video.h"
#include "gob/game.h"
#include "gob/palanim.h"
#include "gob/inter.h"
#include "gob/map.h"
#include "gob/sound/sound.h"
namespace Gob {
VideoPlayer::Properties::Properties() : type(kVideoTypeTry), sprite(Draw::kFrontSurface),
x(-1), y(-1), width(-1), height(-1), flags(kFlagFrontSurface), switchColorMode(false),
startFrame(-1), lastFrame(-1), endFrame(-1), forceSeek(false),
breakKey(kShortKeyEscape), palCmd(8), palStart(0), palEnd(255), palFrame(-1),
noBlock(false), loop(false), fade(false), waitEndFrame(true),
hasSound(false), canceled(false) {
}
VideoPlayer::Video::Video() : decoder(0), live(false) {
}
bool VideoPlayer::Video::isEmpty() const {
return decoder == 0;
}
void VideoPlayer::Video::close() {
delete decoder;
decoder = 0;
fileName.clear();
surface.reset();
live = false;
}
const char *const VideoPlayer::_extensions[] = { "IMD", "IMD", "VMD", "RMD", "SMD" };
VideoPlayer::VideoPlayer(GobEngine *vm) : _vm(vm), _needBlit(false),
_noCursorSwitch(false), _woodruffCohCottWorkaround(false) {
}
VideoPlayer::~VideoPlayer() {
for (int i = 0; i < kVideoSlotCount; i++)
_videoSlots[i].close();
}
void VideoPlayer::evaluateFlags(Properties &properties) {
if (properties.flags & kFlagFrontSurface) {
properties.sprite = Draw::kFrontSurface;
} else if (properties.flags & kFlagOtherSurface) {
properties.sprite = properties.x;
properties.x = 0;
} else if (properties.flags & kFlagScreenSurface) {
properties.sprite = 0;
} else if (properties.flags & kFlagNoVideo) {
properties.sprite = 0;
} else {
properties.sprite = Draw::kBackSurface;
}
if (properties.noBlock && (properties.sprite == Draw::kFrontSurface))
properties.sprite = Draw::kBackSurface;
}
int VideoPlayer::openVideo(bool primary, const Common::String &file, Properties &properties) {
int slot = 0;
Video *video = 0;
if (!primary) {
slot = getNextFreeSlot();
if (slot < 0) {
warning("VideoPlayer::openVideo(): Can't open video \"%s\": No free slot", file.c_str());
return -1;
}
video = &_videoSlots[slot];
} else
video = &_videoSlots[0];
// Different video already in the slot => close that video
if (!video->isEmpty() && (video->fileName.compareToIgnoreCase(file) != 0))
video->close();
// No video => load the requested file
if (video->isEmpty()) {
// Open the video
if (!(video->decoder = openVideo(file, properties)))
return -1;
if (video->decoder->hasVideo() && !(properties.flags & kFlagNoVideo) &&
(video->decoder->isPaletted() != !_vm->isTrueColor())) {
if (!properties.switchColorMode)
return -1;
_vm->setTrueColor(!video->decoder->isPaletted());
video->decoder->colorModeChanged();
}
// Set the filename
video->fileName = file;
// WORKAROUND: In some rare cases, the cursor should still be
// displayed while a video is playing.
_noCursorSwitch = false;
if (primary && (_vm->getGameType() == kGameTypeLostInTime)) {
if (!file.compareToIgnoreCase("PORTA03") ||
!file.compareToIgnoreCase("PORTA03A") ||
!file.compareToIgnoreCase("CALE1") ||
!file.compareToIgnoreCase("AMIL2") ||
!file.compareToIgnoreCase("AMIL3B") ||
!file.compareToIgnoreCase("DELB"))
_noCursorSwitch = true;
}
// WORKAROUND: In Woodruff, Coh Cott vanished in one video on her party.
// This is a bug in video, so we work around it.
_woodruffCohCottWorkaround = false;
if (primary && (_vm->getGameType() == kGameTypeWoodruff)) {
if (!file.compareToIgnoreCase("SQ32-03"))
_woodruffCohCottWorkaround = true;
}
if (!(properties.flags & kFlagNoVideo) && (properties.sprite >= 0)) {
bool ownSurf = (properties.sprite != Draw::kFrontSurface) && (properties.sprite != Draw::kBackSurface);
bool screenSize = properties.flags & kFlagScreenSurface;
if (ownSurf) {
uint16 height = screenSize ? _vm->_width : video->decoder->getWidth();
uint16 width = screenSize ? _vm->_height : video->decoder->getHeight();
if (height > 0 && width > 0) {
_vm->_draw->_spritesArray[properties.sprite] =
_vm->_video->initSurfDesc(screenSize ? _vm->_width : video->decoder->getWidth(),
screenSize ? _vm->_height : video->decoder->getHeight(), 0);
} else {
warning("VideoPlayer::openVideo() file=%s:"
"Invalid surface dimensions (%dx%d)", file.c_str(), width, height);
}
}
if (!_vm->_draw->_spritesArray[properties.sprite] &&
(properties.sprite != Draw::kFrontSurface) &&
(properties.sprite != Draw::kBackSurface)) {
properties.sprite = -1;
video->surface.reset();
video->decoder->setSurfaceMemory();
properties.x = properties.y = 0;
} else {
video->surface = _vm->_draw->_spritesArray[properties.sprite];
if (properties.sprite == Draw::kFrontSurface)
video->surface = _vm->_draw->_frontSurface;
if (properties.sprite == Draw::kBackSurface)
video->surface = _vm->_draw->_backSurface;
video->decoder->setSurfaceMemory(video->surface->getData(),
video->surface->getWidth(), video->surface->getHeight(), video->surface->getBPP());
if (!ownSurf || (ownSurf && screenSize)) {
if ((properties.x >= 0) || (properties.y >= 0)) {
properties.x = (properties.x < 0) ? 0xFFFF : properties.x;
properties.y = (properties.y < 0) ? 0xFFFF : properties.y;
} else
properties.x = properties.y = -1;
} else
properties.x = properties.y = 0;
}
} else {
properties.sprite = -1;
video->surface.reset();
video->decoder->setSurfaceMemory();
properties.x = properties.y = 0;
}
}
video->decoder->setXY(properties.x, properties.y);
if (primary)
_needBlit = (properties.flags & kFlagUseBackSurfaceContent) && (properties.sprite == Draw::kFrontSurface);
properties.hasSound = video->decoder->hasSound();
if (!video->decoder->hasSound())
video->decoder->setFrameRate(_vm->_util->getFrameRate());
WRITE_VAR(7, video->decoder->getFrameCount());
return slot;
}
bool VideoPlayer::closeVideo(int slot) {
Video *video = getVideoBySlot(slot);
if (!video)
return false;
video->close();
return true;
}
void VideoPlayer::closeLiveSound() {
for (int i = 1; i < kVideoSlotCount; i++) {
Video *video = getVideoBySlot(i);
if (!video)
continue;
if (video->live)
closeVideo(i);
}
}
void VideoPlayer::closeAll() {
for (int i = 0; i < kVideoSlotCount; i++)
closeVideo(i);
}
bool VideoPlayer::reopenVideo(int slot) {
Video *video = getVideoBySlot(slot);
if (!video)
return true;
return reopenVideo(*video);
}
bool VideoPlayer::reopenAll() {
bool all = true;
for (int i = 0; i < kVideoSlotCount; i++)
if (!reopenVideo(i))
all = false;
return all;
}
void VideoPlayer::pauseVideo(int slot, bool pause) {
Video *video = getVideoBySlot(slot);
if (!video || !video->decoder)
return;
video->decoder->pauseVideo(pause);
}
void VideoPlayer::pauseAll(bool pause) {
for (int i = 0; i < kVideoSlotCount; i++)
pauseVideo(i, pause);
}
void VideoPlayer::finishVideoSound(int slot) {
Video *video = getVideoBySlot(slot);
if (!video || !video->decoder)
return;
video->decoder->finishSound();
}
void VideoPlayer::waitSoundEnd(int slot) {
Video *video = getVideoBySlot(slot);
if (!video || !video->decoder || video->live)
return;
video->decoder->finishSound();
while (video->decoder->isSoundPlaying())
_vm->_util->longDelay(1);
}
bool VideoPlayer::play(int slot, Properties &properties) {
Video *video = getVideoBySlot(slot);
if (!video)
return false;
bool primary = slot == 0;
if (properties.startFrame < 0)
properties.startFrame = video->decoder->getCurFrame() + 1;
if (properties.lastFrame < 0)
properties.lastFrame = video->decoder->getFrameCount() - 1;
if (properties.endFrame < 0)
properties.endFrame = properties.lastFrame;
if (properties.palFrame < 0)
properties.palFrame = properties.startFrame;
properties.startFrame--;
properties.endFrame--;
properties.palFrame--;
if (primary) {
_vm->_draw->_showCursor = _noCursorSwitch ? 3 : 0;
if (properties.fade)
_vm->_palAnim->fade(0, -2, 0);
}
bool backwards = properties.startFrame > properties.lastFrame;
properties.canceled = false;
if (properties.noBlock) {
properties.waitEndFrame = false;
video->live = true;
video->properties = properties;
updateLive(slot, true);
return true;
}
if ((_vm->getGameType() != kGameTypeUrban) && (_vm->getGameType() != kGameTypeBambou))
// NOTE: For testing (and comfort?) purposes, we enable aborting of all videos.
// Except for Urban Runner and Bambou, where it leads to glitches
properties.breakKey = kShortKeyEscape;
while ((properties.startFrame != properties.lastFrame) &&
(properties.startFrame < (int32)(video->decoder->getFrameCount() - 1))) {
playFrame(slot, properties);
if (properties.canceled)
break;
properties.startFrame += backwards ? -1 : 1;
evalBgShading(*video);
if (primary && properties.fade) {
_vm->_palAnim->fade(_vm->_global->_pPaletteDesc, -2, 0);
properties.fade = false;
}
if (!_noCursorSwitch && properties.waitEndFrame)
waitEndFrame(slot);
}
evalBgShading(*video);
return true;
}
void VideoPlayer::waitEndFrame(int slot, bool onlySound) {
Video *video = getVideoBySlot(slot);
if (!video)
return;
if (!onlySound || video->decoder->hasSound()) {
uint32 waitTime = video->decoder->getTimeToNextFrame();
if (!video->decoder->hasSound())
waitTime = video->decoder->getStaticTimeToNextFrame();
_vm->_util->delay(waitTime);
}
}
int32 VideoPlayer::getExpectedFrameFromCurrentTime(int slot) {
Video *video = getVideoBySlot(slot);
if (!video)
return -1;
return video->decoder->getExpectedFrameFromCurrentTime();
}
bool VideoPlayer::isPlayingLive() const {
const Video *video = getVideoBySlot(0);
return video && video->live;
}
void VideoPlayer::updateLive(bool force) {
for (int i = 0; i < kVideoSlotCount; i++)
updateLive(i, force);
}
void VideoPlayer::updateLive(int slot, bool force) {
Video *video = getVideoBySlot(slot);
if (!video || !video->live)
return;
int nbrOfLiveVideos = 0;
for (int i = 0; i < kVideoSlotCount; i++) {
Video *otherVideo = getVideoBySlot(i);
if (otherVideo && otherVideo->live)
++nbrOfLiveVideos;
}
if (video->properties.startFrame >= (int32)(video->decoder->getFrameCount() - 1)) {
// Video ended
if (!video->properties.loop) {
if (!(video->properties.flags & kFlagNoVideo) || nbrOfLiveVideos == 1)
WRITE_VAR_OFFSET(212, (uint32)-1);
_vm->_vidPlayer->closeVideo(slot);
return;
} else {
video->decoder->seek(0, SEEK_SET, true);
video->properties.startFrame = -1;
}
}
if (video->properties.startFrame == video->properties.lastFrame)
// Current video sequence ended
return;
if (!force && (video->decoder->getTimeToNextFrame() > 0))
return;
if (!(video->properties.flags & kFlagNoVideo) || nbrOfLiveVideos == 1)
WRITE_VAR_OFFSET(212, video->properties.startFrame + 1);
bool backwards = video->properties.startFrame > video->properties.lastFrame;
playFrame(slot, video->properties);
video->properties.startFrame += backwards ? -1 : 1;
if (video->properties.fade) {
_vm->_palAnim->fade(_vm->_global->_pPaletteDesc, -2, 0);
video->properties.fade = false;
}
}
bool VideoPlayer::playFrame(int slot, Properties &properties) {
Video *video = getVideoBySlot(slot);
if (!video)
return false;
bool primary = slot == 0;
if (video->decoder->getCurFrame() != properties.startFrame) {
if (properties.startFrame != -1) {
// Seek into the middle of the video
if (video->decoder->hasSound()) {
// But there's sound
if (properties.forceSeek) {
// And we force seeking => Seek
video->decoder->disableSound();
video->decoder->seek(properties.startFrame + 1, SEEK_SET, true);
}
} else
// No sound => We can safely seek
video->decoder->seek(properties.startFrame + 1, SEEK_SET, true);
} else {
// Seek to the start => We can safely seek
video->decoder->disableSound();
video->decoder->seek(0, SEEK_SET, true);
video->decoder->enableSound();
}
}
if (video->decoder->getCurFrame() > properties.startFrame)
// If the video is already beyond the wanted frame, skip
return true;
bool modifiedPal = false;
if (primary) {
// Pre-decoding palette and blitting, only for primary videos
if ((properties.startFrame == properties.palFrame) ||
((properties.startFrame == properties.endFrame) && (properties.palCmd == 8))) {
modifiedPal = true;
_vm->_draw->_applyPal = true;
if (properties.palCmd >= 4)
copyPalette(*video, properties.palStart, properties.palEnd);
}
if (modifiedPal && (properties.palCmd == 8) && (video->surface != _vm->_draw->_backSurface))
_vm->_video->setFullPalette(_vm->_global->_pPaletteDesc);
if (_needBlit)
_vm->_draw->forceBlit();
}
const Graphics::Surface *surface = video->decoder->decodeNextFrame();
WRITE_VAR(11, video->decoder->getCurFrame());
uint32 ignoreBorder = 0;
if (_woodruffCohCottWorkaround && (properties.startFrame == 31)) {
// WORKAROUND: This frame mistakenly masks Coh Cott, making her vanish
// To prevent that, we'll never draw that part
ignoreBorder = 50;
}
if (surface && primary) {
// Post-decoding palette and blitting, only for primary videos
if (_needBlit)
_vm->_draw->forceBlit(true);
if (modifiedPal && (properties.palCmd == 16)) {
if (video->surface == _vm->_draw->_backSurface)
_vm->_draw->forceBlit();
_vm->_palAnim->fade(_vm->_global->_pPaletteDesc, -2, 0);
_vm->_draw->_noInvalidated = true;
_vm->_video->dirtyRectsAll();
}
if (video->decoder->hasPalette() && (properties.palCmd > 1)) {
copyPalette(*video, properties.palStart, properties.palEnd);
if (video->surface != _vm->_draw->_backSurface)
_vm->_video->setFullPalette(_vm->_global->_pPaletteDesc);
else
_vm->_draw->_applyPal = true;
}
const Common::List<Common::Rect> &dirtyRects = video->decoder->getDirtyRects();
if (modifiedPal && (properties.palCmd == 8) && (video->surface == _vm->_draw->_backSurface))
_vm->_video->setFullPalette(_vm->_global->_pPaletteDesc);
if (video->surface == _vm->_draw->_backSurface) {
for (Common::List<Common::Rect>::const_iterator rect = dirtyRects.begin(); rect != dirtyRects.end(); ++rect)
_vm->_draw->invalidateRect(rect->left + ignoreBorder, rect->top, rect->right - 1, rect->bottom - 1);
if (!video->live)
_vm->_draw->blitInvalidated();
} else if (video->surface == _vm->_draw->_frontSurface) {
for (Common::List<Common::Rect>::const_iterator rect = dirtyRects.begin(); rect != dirtyRects.end(); ++rect)
_vm->_video->dirtyRectsAdd(rect->left + ignoreBorder, rect->top, rect->right - 1, rect->bottom - 1);
}
if (!video->live && ((video->decoder->getCurFrame() - 1) == properties.startFrame))
// Only retrace if we're playing the frame we actually want to play
_vm->_video->retrace();
int32 subtitle = video->decoder->getSubtitleIndex();
if (subtitle != -1)
_vm->_draw->printTotText(subtitle);
if (modifiedPal && ((properties.palCmd == 2) || (properties.palCmd == 4)))
_vm->_palAnim->fade(_vm->_global->_pPaletteDesc, -2, 0);
}
if (primary && properties.waitEndFrame)
checkAbort(*video, properties);
if ((video->decoder->getCurFrame() - 1) < properties.startFrame)
// The video played a frame we actually didn't want, so we have to adjust
properties.startFrame--;
return true;
}
void VideoPlayer::checkAbort(Video &video, Properties &properties) {
_vm->_util->processInput();
if (_vm->shouldQuit()) {
video.decoder->disableSound();
properties.canceled = true;
return;
}
if (properties.breakKey != 0) {
_vm->_util->getMouseState(&_vm->_global->_inter_mouseX,
&_vm->_global->_inter_mouseY, &_vm->_game->_mouseButtons);
_vm->_inter->storeKey(_vm->_util->checkKey());
// Check for that specific key
bool pressedBreak = (VAR(0) == (unsigned)properties.breakKey);
// Mouse buttons
if (properties.breakKey < 4)
if (_vm->_game->_mouseButtons & properties.breakKey)
pressedBreak = true;
// Any key
if (properties.breakKey == 4)
if (VAR(0) != 0)
pressedBreak = true;
if (pressedBreak) {
video.decoder->disableSound();
// Seek to the last frame. Some scripts depend on that.
video.decoder->seek(properties.endFrame + 1, SEEK_SET, true);
properties.canceled = true;
}
}
}
bool VideoPlayer::slotIsOpen(int slot) const {
return getVideoBySlot(slot) != 0;
}
Common::String VideoPlayer::getFileName(int slot) const {
const Video *video = getVideoBySlot(slot);
if (!video)
return "";
return video->fileName;
}
uint32 VideoPlayer::getFrameCount(int slot) const {
const Video *video = getVideoBySlot(slot);
if (!video)
return 0;
return video->decoder->getFrameCount();
}
uint32 VideoPlayer::getCurrentFrame(int slot) const {
const Video *video = getVideoBySlot(slot);
if (!video)
return 0;
return video->decoder->getCurFrame();
}
uint16 VideoPlayer::getWidth(int slot) const {
const Video *video = getVideoBySlot(slot);
if (!video)
return 0;
return video->decoder->getWidth();
}
uint16 VideoPlayer::getHeight(int slot) const {
const Video *video = getVideoBySlot(slot);
if (!video)
return 0;
return video->decoder->getHeight();
}
uint16 VideoPlayer::getDefaultX(int slot) const {
const Video *video = getVideoBySlot(slot);
if (!video)
return 0;
return video->decoder->getDefaultX();
}
uint16 VideoPlayer::getDefaultY(int slot) const {
const Video *video = getVideoBySlot(slot);
if (!video)
return 0;
return video->decoder->getDefaultY();
}
uint32 VideoPlayer::getFlags(int slot) const {
const Video *video = getVideoBySlot(slot);
if (!video)
return 0;
return video->decoder->getFlags();
}
const Common::List<Common::Rect> *VideoPlayer::getDirtyRects(int slot) const {
const Video *video = getVideoBySlot(slot);
if (!video)
return 0;
return &video->decoder->getDirtyRects();
}
bool VideoPlayer::hasEmbeddedFile(const Common::String &fileName, int slot) const {
const Video *video = getVideoBySlot(slot);
if (!video)
return false;
return video->decoder->hasEmbeddedFile(fileName);
}
Common::SeekableReadStream *VideoPlayer::getEmbeddedFile(const Common::String &fileName, int slot) {
const Video *video = getVideoBySlot(slot);
if (!video)
return 0;
return video->decoder->getEmbeddedFile(fileName);
}
int32 VideoPlayer::getSubtitleIndex(int slot) const {
const Video *video = getVideoBySlot(slot);
if (!video)
return -1;
return video->decoder->getSubtitleIndex();
}
void VideoPlayer::writeVideoInfo(const Common::String &file, uint16 varX, uint16 varY,
uint16 varFrames, uint16 varWidth, uint16 varHeight) {
Properties properties;
int slot = openVideo(false, file, properties);
if (slot >= 0) {
Video &video = _videoSlots[slot];
int16 x = -1, y = -1, width = -1, height = -1;
x = video.decoder->getDefaultX();
y = video.decoder->getDefaultY();
width = video.decoder->getWidth();
height = video.decoder->getHeight();
if (VAR_OFFSET(varX) == 0xFFFFFFFF)
video.decoder->getFrameCoords(1, x, y, width, height);
WRITE_VAR_OFFSET(varX , x);
WRITE_VAR_OFFSET(varY , y);
WRITE_VAR_OFFSET(varFrames, video.decoder->getFrameCount());
WRITE_VAR_OFFSET(varWidth , width);
WRITE_VAR_OFFSET(varHeight, height);
closeVideo(slot);
} else {
WRITE_VAR_OFFSET(varX , (uint32) -1);
WRITE_VAR_OFFSET(varY , (uint32) -1);
WRITE_VAR_OFFSET(varFrames, (uint32) -1);
WRITE_VAR_OFFSET(varWidth , (uint32) -1);
WRITE_VAR_OFFSET(varHeight, (uint32) -1);
}
}
bool VideoPlayer::copyFrame(int slot, Surface &dest,
uint16 left, uint16 top, uint16 width, uint16 height, uint16 x, uint16 y,
int32 transp, bool yAxisReflection) const {
const Video *video = getVideoBySlot(slot);
if (!video)
return false;
const Graphics::Surface *surface = video->decoder->getSurface();
if (!surface)
return false;
// FIXME? This currently casts away const from the pixel data. However, it
// is only used read-only in this case (as far as I can tell). Not casting
// the const qualifier away will lead to an additional allocation and copy
// of the frame data which is undesirable.
Surface src(surface->w, surface->h, surface->format.bytesPerPixel, (byte *)const_cast<void *>(surface->getPixels()));
dest.blit(src, left, top, left + width - 1, top + height - 1, x, y, transp, yAxisReflection);
return true;
}
const VideoPlayer::Video *VideoPlayer::getVideoBySlot(int slot) const {
if ((slot < 0) || (slot >= kVideoSlotCount))
return 0;
if (_videoSlots[slot].isEmpty())
return 0;
return &_videoSlots[slot];
}
VideoPlayer::Video *VideoPlayer::getVideoBySlot(int slot) {
if ((slot < 0) || (slot >= kVideoSlotCount))
return 0;
if (_videoSlots[slot].isEmpty())
return 0;
return &_videoSlots[slot];
}
int VideoPlayer::getNextFreeSlot() {
// Starting with 1, since 0 is reserved for the "primary" video
for (int i = 1; i < kVideoSlotCount; i++)
if (_videoSlots[i].isEmpty())
return i;
return -1;
}
void VideoPlayer::evalBgShading(Video &video) {
if (video.decoder->isSoundPlaying())
_vm->_sound->bgShade();
else
_vm->_sound->bgUnshade();
}
Common::String VideoPlayer::findFile(const Common::String &file, Properties &properties) {
bool hasExtension = false;
Common::String base = file;
Common::String fileName = file;
const char *posDot = strrchr(base.c_str(), '.');
if (posDot) {
hasExtension = true;
base = Common::String(base.c_str(), posDot);
posDot++;
}
if (hasExtension) {
int i;
for (i = 0; i < ARRAYSIZE(_extensions); i++) {
if (!scumm_stricmp(posDot, _extensions[i])) {
if ((properties.type != kVideoTypeTry) && (properties.type == ((Type) i))) {
warning("Attempted to open video \"%s\", but requested a different type", fileName.c_str());
return "";
}
properties.type = (Type) i;
break;
}
}
if (i >= ARRAYSIZE(_extensions))
hasExtension = false;
}
if (!hasExtension) {
// No or unrecognized extension. Probing.
int i;
for (i = 0; i < ARRAYSIZE(_extensions); i++) {
if ((properties.type == kVideoTypeTry) || (properties.type == ((Type) i))) {
fileName = base + "." + _extensions[i];
if (_vm->_dataIO->hasFile(fileName)) {
properties.type = (Type) i;
break;
}
}
}
if ((i >= ARRAYSIZE(_extensions)) || (properties.type == kVideoTypeTry)) {
warning("Couldn't open video \"%s\"", file.c_str());
return "";
}
}
return fileName;
}
::Video::CoktelDecoder *VideoPlayer::openVideo(const Common::String &file, Properties &properties) {
Common::String fileName = findFile(file, properties);
if (fileName.empty())
return 0;
Common::SeekableReadStream *stream = _vm->_dataIO->getFile(fileName);
if (!stream)
return 0;
::Video::CoktelDecoder *video = 0;
if (properties.type == kVideoTypeIMD)
video = new ::Video::IMDDecoder(_vm->_mixer, Audio::Mixer::kSFXSoundType);
else if (properties.type == kVideoTypePreIMD)
video = new ::Video::PreIMDDecoder(properties.width, properties.height, _vm->_mixer, Audio::Mixer::kSFXSoundType);
else if (properties.type == kVideoTypeVMD)
video = new ::Video::VMDDecoder(_vm->_mixer, Audio::Mixer::kSFXSoundType);
else if (properties.type == kVideoTypeRMD)
video = new ::Video::VMDDecoder(_vm->_mixer, Audio::Mixer::kSFXSoundType);
else
warning("Couldn't open video \"%s\": Invalid video Type", fileName.c_str());
if (!video) {
delete stream;
return 0;
}
if (!video->loadStream(stream)) {
delete video;
return 0;
}
properties.width = video->getWidth();
properties.height = video->getHeight();
return video;
}
bool VideoPlayer::reopenVideo(Video &video) {
if (video.isEmpty())
return true;
if (video.fileName.empty()) {
video.close();
return false;
}
Properties properties;
properties.type = video.properties.type;
Common::String fileName = findFile(video.fileName, properties);
if (fileName.empty()) {
video.close();
return false;
}
Common::SeekableReadStream *stream = _vm->_dataIO->getFile(fileName);
if (!stream) {
video.close();
return false;
}
if (!video.decoder->reloadStream(stream)) {
delete stream;
return false;
}
return true;
}
void VideoPlayer::copyPalette(const Video &video, int16 palStart, int16 palEnd) {
if (!video.decoder->hasPalette() || !video.decoder->isPaletted())
return;
if (palStart < 0)
palStart = 0;
if (palEnd < 0)
palEnd = 255;
palStart = palStart * 3;
palEnd = (palEnd + 1) * 3;
for (int i = palStart; i < palEnd; i++)
((char *)(_vm->_global->_pPaletteDesc->vgaPal))[i] = video.decoder->getPalette()[i] >> 2;
}
} // End of namespace Gob