Initial commit

engines/toltecs/animation.cpp

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+/* 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 "toltecs/toltecs.h"
+#include "toltecs/animation.h"
+#include "toltecs/palette.h"
+#include "toltecs/screen.h"
+
+namespace Toltecs {
+
+AnimationPlayer::AnimationPlayer(ToltecsEngine *vm) : _vm(vm) {
+	_animBuffer = new byte[262144]();
+
+	_resIndex = 0;
+	_width = _height = 0;
+	_frameNumber = 0;
+	_frameCount = 0;
+	_keepFrameCounter = 0;
+	_curFrameSize = _nextFrameSize = 0;
+	_nextFrameOffset = 0;
+	_firstNextFrameSize = 0;
+	_firstNextFrameOffset = 0;
+	_firstCurFrameSize = 0;
+}
+
+AnimationPlayer::~AnimationPlayer() {
+	delete[] _animBuffer;
+}
+
+void AnimationPlayer::start(uint resIndex) {
+	debug(1, "AnimationPlayer::start(%d)", resIndex);
+
+	_resIndex = resIndex;
+
+	_vm->_arc->openResource(_resIndex);
+	_height = _vm->_arc->readUint16LE();
+	_width = _vm->_arc->readUint16LE();
+	_frameCount = _vm->_arc->readUint16LE();
+	_vm->_arc->read(_vm->_palette->getAnimPalette(), 768);
+	_curFrameSize = _vm->_arc->readUint32LE();
+	_nextFrameOffset = _curFrameSize + 782;
+	_vm->_arc->read(_animBuffer, _curFrameSize);
+	_nextFrameSize = _vm->_arc->readUint32LE();
+	_vm->_arc->closeResource();
+
+	debug(1, "AnimationPlayer::start() width = %d; height = %d; frameCount = %d", _width, _height, _frameCount);
+
+	_vm->_sceneWidth = _width;
+	_vm->_sceneHeight = _height;
+
+	unpackFrame();
+
+	_keepFrameCounter = 0;
+	_frameNumber = 0;
+	// TODO mov screenFlag01, 0FFFFh
+	// TODO mov animDrawFrameFlag, 0FFFFh
+
+	_firstNextFrameOffset = _nextFrameOffset;
+	_firstCurFrameSize = _curFrameSize;
+	_firstNextFrameSize = _nextFrameSize;
+
+}
+
+void AnimationPlayer::nextFrame() {
+	debug(1, "AnimationPlayer::nextFrame()");
+
+	if (_frameNumber == _frameCount) {
+		_nextFrameOffset = _firstNextFrameOffset;
+		_curFrameSize = _firstCurFrameSize;
+		_nextFrameSize = _firstNextFrameSize;
+		_frameNumber = 1;
+	} else {
+		_frameNumber++;
+	}
+
+	debug(1, "AnimationPlayer::nextFrame() frameNumber = %d", _frameNumber);
+
+	if (_keepFrameCounter > 0) {
+		_keepFrameCounter--;
+		return;
+	}
+
+	_vm->_arc->openResource(_resIndex);
+	_vm->_arc->seek(_nextFrameOffset, SEEK_CUR);
+	_curFrameSize = _nextFrameSize;
+
+	if (_curFrameSize == 0)
+		_curFrameSize = 1;
+
+	_vm->_arc->read(_animBuffer, _curFrameSize);
+	_nextFrameSize = _vm->_arc->readUint32LE();
+	_nextFrameOffset += _curFrameSize + 4;
+
+	if (_curFrameSize > 1) {
+		unpackFrame();
+		// TODO mov animDrawFrameFlag, 0FFFFh
+	} else {
+		_keepFrameCounter = _animBuffer[0] - 1;
+		// TODO mov animDrawFrameFlag, 0
+	}
+
+	_vm->_arc->closeResource();
+
+
+}
+
+int16 AnimationPlayer::getStatus() {
+	debug(1, "AnimationPlayer::getStatus()");
+	int16 status = -1;
+	if (_frameNumber == _frameCount)
+		status = 0;
+	else if (_frameNumber == _frameCount - 1)
+		status = 1;
+	debug(1, "AnimationPlayer::getStatus() status = %d", status);
+	return status;
+}
+
+void AnimationPlayer::unpackFrame() {
+	_vm->_screen->unpackRle(_animBuffer, _vm->_screen->_frontScreen, _width, _height);
+	_vm->_screen->unpackRle(_animBuffer, _vm->_screen->_backScreen, _width, _height);
+	_vm->_screen->_fullRefresh = true;
+}
+
+void AnimationPlayer::saveState(Common::WriteStream *out) {
+	out->writeUint16LE(_resIndex);
+	// NOTE: The original engine doesn't save width/height, but we do
+	out->writeUint16LE(_width);
+	out->writeUint16LE(_height);
+	out->writeUint16LE(_frameCount);
+	out->writeUint16LE(_frameNumber);
+	out->writeUint32LE(_keepFrameCounter);
+	out->writeUint32LE(_curFrameSize);
+	out->writeUint32LE(_nextFrameSize);
+	out->writeUint32LE(_nextFrameOffset);
+	out->writeUint32LE(_firstCurFrameSize);
+	out->writeUint32LE(_firstNextFrameSize);
+	out->writeUint32LE(_firstNextFrameOffset);
+}
+
+void AnimationPlayer::loadState(Common::ReadStream *in) {
+	_resIndex = in->readUint16LE();
+	_width = in->readUint16LE();
+	_height = in->readUint16LE();
+	_frameCount = in->readUint16LE();
+	_frameNumber = in->readUint16LE();
+	_keepFrameCounter = in->readUint32LE();
+	_curFrameSize = in->readUint32LE();
+	_nextFrameSize = in->readUint32LE();
+	_nextFrameOffset = in->readUint32LE();
+	_firstCurFrameSize = in->readUint32LE();
+	_firstNextFrameSize = in->readUint32LE();
+	_firstNextFrameOffset = in->readUint32LE();
+}
+
+} // End of namespace Toltecs