Add initial DXA support for HE games

svn-id: r22384

1 files changed, 274 insertions, 0 deletions

diff --git a/engines/scumm/he/animation_he.cpp b/engines/scumm/he/animation_he.cpp
new file mode 100644
index 0000000000..c7f9455a46
--- /dev/null
+++ b/engines/scumm/he/animation_he.cpp
@@ -0,0 +1,274 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2001  Ludvig Strigeus
+ * Copyright (C) 2001-2006 The ScummVM project
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include "common/stdafx.h"
+
+#include "common/rect.h"
+
+#include "scumm/he/animation_he.h"
+#include "scumm/he/intern_he.h"
+
+#ifdef USE_ZLIB
+#include <zlib.h>
+#endif
+
+namespace Scumm {
+
+MoviePlayer::MoviePlayer(ScummEngine_v90he *vm)
+	: _vm(vm) {
+
+	_frameBuffer1 = 0;
+	_frameBuffer2 = 0;
+
+	_width = 0;
+	_height = 0;
+
+	_frameSize = 0;
+	_framesCount = 0;
+	_frameNum = 0;
+	_framesPerSec = 0;
+	_frameTicks = 0;
+
+	_flags = 0;
+	_wizResNum = 0;
+}
+
+MoviePlayer::~MoviePlayer() {
+}
+
+int MoviePlayer::getWidth() {
+	if (_fd.isOpen() == false)
+		return 0;
+	return _width;
+}
+
+int MoviePlayer::getHeight() {
+	if (_fd.isOpen() == false)
+		return 0;
+	return _height;
+}
+
+int MoviePlayer::getCurFrame() {
+	if (_fd.isOpen() == false)
+		return -1;
+	return _frameNum;
+}
+
+int MoviePlayer::getFrameCount() {
+	if (_fd.isOpen() == false)
+		return 0;
+	return _framesCount;
+}
+
+int MoviePlayer::getImageNum() {
+	if (_fd.isOpen() == false)
+		return 0;
+	return _wizResNum;
+}
+
+int MoviePlayer::load(const char *filename, int flags, int image) {
+	char filename2[100];
+	uint32 tag;
+	int32 frameRate;
+
+	if (_fd.isOpen() == true) {
+		close();
+	}
+
+	// Change file extension to dxa
+	strcpy(filename2, filename);
+	int len = strlen(filename2) - 3;
+	filename2[len++] = 'd';
+	filename2[len++] = 'x';
+	filename2[len++] = 'a';
+	
+	if (_fd.open(filename2) == false) {
+		warning("Failed to load video file %s", filename2);
+		return -1;
+	} 
+	debug(0, "Playing video %s", filename2);
+
+	tag = _fd.readUint32BE();
+	assert(tag == MKID_BE('DEXA'));
+
+	_fd.readByte();
+	_framesCount = _fd.readUint16BE();
+	frameRate = _fd.readUint32BE();
+
+	if (frameRate > 0)
+		_framesPerSec = 1000 / frameRate;
+	else if (frameRate < 0)
+		_framesPerSec = 100000 / (-frameRate);
+	else
+		_framesPerSec = 10;
+
+        if (frameRate < 0)
+                _frameTicks = -frameRate / 100;
+	else
+		_frameTicks = frameRate;
+
+	_width = _fd.readUint16BE();
+	_height = _fd.readUint16BE();
+
+	// Skip sound tag
+	_fd.readUint32BE();
+
+	debug(0, "frames_count %d width %d height %d rate %d ticks %d", _framesCount, _width, _height, _framesPerSec, _frameTicks);
+
+	_frameSize = _width * _height;
+	_frameBuffer1 = (uint8 *)malloc(_frameSize);
+	_frameBuffer2 = (uint8 *)malloc(_frameSize);
+	if (!_frameBuffer1 || !_frameBuffer2) {
+		error("error allocating frame tables, size %d\n", _frameSize);
+	}
+
+	if (flags & 2) {
+		_vm->_wiz->createWizEmptyImage(image, 0, 0, _width, _height);
+	}
+
+	_frameNum = 0;
+
+	_flags = flags;
+	_wizResNum = image;
+
+	return 0;
+}
+
+void MoviePlayer::close() {
+	_fd.close();
+	free(_frameBuffer1);
+	free(_frameBuffer2);
+}
+
+void MoviePlayer::handleNextFrame() {
+	if (_fd.isOpen() == false) {
+		return;
+	}
+
+	VirtScreen *pvs = &_vm->virtscr[kMainVirtScreen];
+	uint8 *dst;
+
+	decodeFrame();
+
+	if (_flags & 2) {
+		uint8 *dstPtr = _vm->getResourceAddress(rtImage, _wizResNum);
+		assert(dstPtr);
+		dst = _vm->findWrappedBlock(MKID_BE('WIZD'), dstPtr, 0, 0);
+		assert(dst);
+		copyFrame(dst, 0, 0);
+	} else if (_flags & 1) {
+		dst = pvs->getBackPixels(0, 0);
+		copyFrame(dst, 0, 0);
+		
+		Common::Rect imageRect(_width, _height);
+		_vm->gdi.copyVirtScreenBuffers(imageRect);
+	} else {
+		dst = pvs->getPixels(0, 0);
+		copyFrame(dst, 0, 0);
+
+		_vm->markRectAsDirty(kMainVirtScreen, 0, 0, _width, _height);
+	}
+
+	_frameNum++;
+	if (_frameNum == _framesCount) {
+		close();
+	}
+}
+
+void MoviePlayer::copyFrame(byte *dst, uint x, uint y) {
+	uint h = _height;
+	uint w = _width;
+
+	dst += y * _vm->_screenWidth + x;
+	byte *src = _frameBuffer1;
+
+	do {
+		memcpy(dst, src, w);
+		dst += _vm->_screenWidth;
+		src += _width;
+	} while (--h);
+}
+
+void MoviePlayer::decodeZlib(uint8 *data, int size, int totalSize) {
+#ifdef USE_ZLIB
+	uint8 *temp = (uint8 *)malloc(size);
+	if (temp) {
+		memcpy(temp, data, size);
+    	z_stream d_stream;
+    	d_stream.zalloc = (alloc_func)0;
+    	d_stream.zfree = (free_func)0;
+    	d_stream.opaque = (voidpf)0;
+    	d_stream.next_in = temp;
+    	d_stream.avail_in = size;
+    	d_stream.total_in = size;
+    	d_stream.next_out = data;
+    	d_stream.avail_out = totalSize;
+    	inflateInit(&d_stream);
+        inflate(&d_stream, Z_FINISH);
+    	inflateEnd(&d_stream);
+		free(temp);
+	}
+#endif
+}
+
+void MoviePlayer::decodeFrame() {
+	uint32 tag;
+
+	tag = _fd.readUint32BE();
+	if (tag == MKID_BE('CMAP')) {
+		uint8 rgb[768];
+
+		_fd.read(rgb, ARRAYSIZE(rgb));
+		_vm->setPaletteFromPtr(rgb, 256);
+	}
+
+	tag = _fd.readUint32BE();
+	if (tag == MKID_BE('FRAM')) {
+		uint8 type = _fd.readByte();
+		uint32 size = _fd.readUint32BE();
+		debug(0, "frame %d type %d size %d", _frameNum, type, size);
+
+		_fd.read(_frameBuffer2, size);
+
+		switch (type) {
+		case 2:
+		case 3:
+			decodeZlib(_frameBuffer2, size, _frameSize);
+			break;
+		default:
+			error("decodeFrame: Unknown compression type %d", type);
+		}
+		if (type == 2) {
+			memcpy(_frameBuffer1, _frameBuffer2, _frameSize);
+		} else {
+			for (int j = 0; j < _height; ++j) {
+				for (int i = 0; i < _width; ++i) {
+					const int offs = j * _width + i;
+					_frameBuffer1[offs] ^= _frameBuffer2[offs];
+				}
+			}
+		}
+	}
+}
+
+} // End of namespace Simon