diff options
Diffstat (limited to 'engines/prince/detail/animation.cpp')
| -rw-r--r-- | engines/prince/detail/animation.cpp | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/engines/prince/detail/animation.cpp b/engines/prince/detail/animation.cpp new file mode 100644 index 0000000000..8b4a72b2f8 --- /dev/null +++ b/engines/prince/detail/animation.cpp @@ -0,0 +1,102 @@ +/* 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.
+ *
+ */
+
+#include "prince/detail/animation.h"
+#include "prince/decompress.h"
+
+#include "common/debug.h"
+#include "common/endian.h"
+
+namespace Prince { namespace Detail {
+
+Animation::Animation(byte *data, uint32 dataSize)
+ : _data(data), _dataSize(dataSize) {
+}
+
+Animation::~Animation() {
+ free(_data);
+}
+
+int16 Animation::getLoopCount() const {
+ return READ_LE_UINT16(_data + 2);
+}
+
+int16 Animation::getBaseX() const {
+ return READ_LE_UINT16(_data + 8);
+}
+
+int16 Animation::getBaseY() const {
+ return READ_LE_UINT16(_data + 10);
+}
+
+uint Animation::getPhaseCount() const {
+ return READ_LE_UINT16(_data + 4);
+}
+
+uint Animation::getFrameCount() const {
+ return READ_LE_UINT16(_data + 6);
+}
+
+int16 Animation::getPhaseOffsetX(uint phaseIndex) const {
+ return READ_LE_UINT16(getPhaseEntry(phaseIndex) + 0);
+}
+
+int16 Animation::getPhaseOffsetY(uint phaseIndex) const {
+ return READ_LE_UINT16(getPhaseEntry(phaseIndex) + 2);
+}
+
+int16 Animation::getPhaseFrameIndex(uint phaseIndex) const {
+ return READ_LE_UINT16(getPhaseEntry(phaseIndex) + 4);
+}
+
+Graphics::Surface *Animation::getFrame(uint frameIndex) {
+ byte *frameData = _data + READ_LE_UINT32(_data + 16 + frameIndex * 4);
+ int16 width = READ_LE_UINT16(frameData + 0);
+ int16 height = READ_LE_UINT16(frameData + 2);
+ debug("width = %d; height = %d", width, height);
+ Graphics::Surface *surf = new Graphics::Surface();
+ surf->create(width, height, Graphics::PixelFormat::createFormatCLUT8());
+ debug("frameData %p", frameData);
+ if (READ_BE_UINT32(frameData + 4) == 0x6D61736D) {
+ // Compressed
+ Decompressor dec;
+ uint32 ddataSize = READ_LE_UINT32(frameData + 8);
+ byte *ddata = new byte[ddataSize];
+ dec.decompress(frameData + 12, ddata, ddataSize);
+ for (uint16 i = 0; i < height; ++i) {
+ memcpy(surf->getBasePtr(0, i), ddata + width * i, width);
+ }
+ delete[] ddata;
+ } else {
+ // Uncompressed
+ for (uint16 i = 0; i < height; ++i) {
+ memcpy(surf->getBasePtr(0, i), frameData + 4 + width * i, width);
+ }
+ }
+ return surf;
+}
+
+byte *Animation::getPhaseEntry(uint phaseIndex) const {
+ return _data + READ_LE_UINT32(_data + 12) + phaseIndex * 8;
+}
+
+} }
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