aboutsummaryrefslogtreecommitdiff
path: root/image/codecs/indeo3.h
diff options
context:
space:
mode:
Diffstat (limited to 'image/codecs/indeo3.h')
-rw-r--r--image/codecs/indeo3.h94
1 files changed, 94 insertions, 0 deletions
diff --git a/image/codecs/indeo3.h b/image/codecs/indeo3.h
new file mode 100644
index 0000000000..275cbc1654
--- /dev/null
+++ b/image/codecs/indeo3.h
@@ -0,0 +1,94 @@
+/* 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 "common/scummsys.h"
+
+/* Intel Indeo 3 decompressor, derived from ffmpeg.
+ *
+ * Original copyright note:
+ * Intel Indeo 3 (IV31, IV32, etc.) video decoder for ffmpeg
+ * written, produced, and directed by Alan Smithee
+ */
+
+#ifndef IMAGE_CODECS_INDEO3_H
+#define IMAGE_CODECS_INDEO3_H
+
+#include "image/codecs/codec.h"
+
+namespace Image {
+
+/**
+ * Intel Indeo 3 decoder.
+ *
+ * Used in video:
+ * - AVIDecoder
+ * - VMDDecoder
+ */
+class Indeo3Decoder : public Codec {
+public:
+ Indeo3Decoder(uint16 width, uint16 height);
+ ~Indeo3Decoder();
+
+ const Graphics::Surface *decodeImage(Common::SeekableReadStream *stream);
+ Graphics::PixelFormat getPixelFormat() const;
+
+ static bool isIndeo3(Common::SeekableReadStream &stream);
+
+private:
+ Graphics::Surface *_surface;
+
+ Graphics::PixelFormat _pixelFormat;
+
+ static const int _corrector_type_0[24];
+ static const int _corrector_type_2[8];
+ static const uint32 correction[];
+ static const uint32 correctionloworder[];
+ static const uint32 correctionhighorder[];
+
+ struct YUVBufs {
+ byte *Ybuf;
+ byte *Ubuf;
+ byte *Vbuf;
+ byte *the_buf;
+ uint32 the_buf_size;
+ uint16 y_w, y_h;
+ uint16 uv_w, uv_h;
+ };
+
+ YUVBufs _iv_frame[2];
+ YUVBufs *_cur_frame;
+ YUVBufs *_ref_frame;
+
+ byte *_ModPred;
+ uint16 *_corrector_type;
+
+ void buildModPred();
+ void allocFrames();
+
+ void decodeChunk(byte *cur, byte *ref, int width, int height,
+ const byte *buf1, uint32 fflags2, const byte *hdr,
+ const byte *buf2, int min_width_160);
+};
+
+} // End of namespace Image
+
+#endif