ZVISION: Create a folder structure for ZVision source files

I personally used filters within my IDE, but since others are now joining the project,
it was brought to my attention that some better organization would be nice.

3 files changed, 284 insertions, 0 deletions

diff --git a/engines/zvision/video/video.cpp b/engines/zvision/video/video.cpp
new file mode 100644
index 0000000000..894ae3a055
--- /dev/null
+++ b/engines/zvision/video/video.cpp
@@ -0,0 +1,171 @@
+/* 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"
+
+#include "zvision/zvision.h"
+
+#include "zvision/clock.h"
+#include "zvision/render_manager.h"
+
+#include "common/system.h"
+
+#include "video/video_decoder.h"
+
+#include "engines/util.h"
+
+#include "graphics/surface.h"
+
+
+namespace ZVision {
+
+// Taken/modified from SCI
+void scaleBuffer(const byte *src, byte *dst, uint32 srcWidth, uint32 srcHeight, byte bytesPerPixel, uint scaleAmount) {
+	assert(bytesPerPixel == 1 || bytesPerPixel == 2);
+
+	const uint32 newWidth = srcWidth * scaleAmount;
+	const uint32 pitch = newWidth * bytesPerPixel;
+	const byte *srcPtr = src;
+
+	if (bytesPerPixel == 1) {
+		for (uint32 y = 0; y < srcHeight; ++y) {
+			for (uint32 x = 0; x < srcWidth; ++x) {
+				const byte color = *srcPtr++;
+
+				for (uint i = 0; i < scaleAmount; ++i) {
+					dst[i] = color;
+					dst[pitch + i] = color;
+				}
+				dst += scaleAmount;
+			}
+			dst += pitch;
+		}
+	} else if (bytesPerPixel == 2) {
+		for (uint32 y = 0; y < srcHeight; ++y) {
+			for (uint32 x = 0; x < srcWidth; ++x) {
+				const byte color = *srcPtr++;
+				const byte color2 = *srcPtr++;
+
+				for (uint i = 0; i < scaleAmount; ++i) {
+					uint index = i *2;
+
+					dst[index] = color;
+					dst[index + 1] = color2;
+					dst[pitch + index] = color;
+					dst[pitch + index + 1] = color2;
+				}
+				dst += 2 * scaleAmount;
+			}
+			dst += pitch;
+		}
+	}
+}
+
+void ZVision::playVideo(Video::VideoDecoder &videoDecoder, const Common::Rect &destRect, bool skippable) {
+	byte bytesPerPixel = videoDecoder.getPixelFormat().bytesPerPixel;
+
+	uint16 origWidth = videoDecoder.getWidth();
+	uint16 origHeight = videoDecoder.getHeight();
+
+	uint scale = 1;
+	// If destRect is empty, no specific scaling was requested. However, we may choose to do scaling anyway
+	if (destRect.isEmpty()) {
+		// Most videos are very small. Therefore we do a simple 2x scale
+		if (origWidth * 2 <= 640 && origHeight * 2 <= 480) {
+			scale = 2;
+		}
+	} else {
+		// Assume bilinear scaling. AKA calculate the scale from just the width.
+		// Also assume that the scaling is in integral intervals. AKA no 1.5x scaling
+		// TODO: Test ^these^ assumptions
+		scale = destRect.width() / origWidth;
+
+		// TODO: Test if we need to support downscale.
+	}
+
+	uint16 pitch = origWidth * bytesPerPixel;
+
+	uint16 finalWidth = origWidth * scale;
+	uint16 finalHeight = origHeight * scale;
+
+	byte *scaledVideoFrameBuffer = 0;
+	if (scale != 1) {
+		scaledVideoFrameBuffer = new byte[finalWidth * finalHeight * bytesPerPixel];
+	}
+
+	uint16 x = ((WINDOW_WIDTH - finalWidth) / 2) + destRect.left;
+	uint16 y = ((WINDOW_HEIGHT - finalHeight) / 2) + destRect.top;
+
+	_clock.stop();
+	videoDecoder.start();
+
+	// Only continue while the video is still playing
+	while (!shouldQuit() && !videoDecoder.endOfVideo() && videoDecoder.isPlaying()) {
+		// Check for engine quit and video stop key presses
+		while (!videoDecoder.endOfVideo() && videoDecoder.isPlaying() && _eventMan->pollEvent(_event)) {
+			switch (_event.type) {
+			case Common::EVENT_KEYDOWN:
+				switch (_event.kbd.keycode) {
+				case Common::KEYCODE_q:
+					if (_event.kbd.hasFlags(Common::KBD_CTRL))
+						quitGame();
+					break;
+				case Common::KEYCODE_SPACE:
+					if (skippable) {
+						videoDecoder.stop();
+					}
+					break;
+				default:
+					break;
+				}
+			default:
+				break;
+			}
+		}
+
+		if (videoDecoder.needsUpdate()) {
+			const Graphics::Surface *frame = videoDecoder.decodeNextFrame();
+
+			if (frame) {
+				if (scale != 1) {
+					scaleBuffer((const byte *)frame->getPixels(), scaledVideoFrameBuffer, origWidth, origHeight, bytesPerPixel, scale);
+					_system->copyRectToScreen(scaledVideoFrameBuffer, pitch * 2, x, y, finalWidth, finalHeight);
+				} else {
+					_system->copyRectToScreen((const byte *)frame->getPixels(), pitch, x, y, finalWidth, finalHeight);
+				}
+			}
+		}
+
+		// Always update the screen so the mouse continues to render
+		_system->updateScreen();
+
+		_system->delayMillis(videoDecoder.getTimeToNextFrame());
+	}
+
+	_clock.start();
+
+	if (scale != 1) {
+		delete[] scaledVideoFrameBuffer;
+	}
+}
+
+} // End of namespace ZVision
diff --git a/engines/zvision/video/zork_avi_decoder.cpp b/engines/zvision/video/zork_avi_decoder.cpp
new file mode 100644
index 0000000000..a614f77bb7
--- /dev/null
+++ b/engines/zvision/video/zork_avi_decoder.cpp
@@ -0,0 +1,53 @@
+/* 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"
+
+#include "zvision/zork_avi_decoder.h"
+
+#include "zvision/zork_raw.h"
+
+#include "common/stream.h"
+
+#include "audio/audiostream.h"
+
+
+namespace ZVision {
+
+Video::AVIDecoder::AVIAudioTrack *ZorkAVIDecoder::createAudioTrack(Video::AVIDecoder::AVIStreamHeader sHeader, Video::AVIDecoder::PCMWaveFormat wvInfo) {
+	ZorkAVIDecoder::ZorkAVIAudioTrack *audioTrack = new ZorkAVIDecoder::ZorkAVIAudioTrack(sHeader, wvInfo, _soundType);
+	return (Video::AVIDecoder::AVIAudioTrack *)audioTrack;
+}
+
+void ZorkAVIDecoder::ZorkAVIAudioTrack::queueSound(Common::SeekableReadStream *stream) {
+	if (_audStream) {
+		if (_wvInfo.tag == kWaveFormatZorkPCM) {
+			assert(_wvInfo.size == 8);
+			_audStream->queueAudioStream(makeRawZorkStream(stream, _wvInfo.samplesPerSec, _audStream->isStereo(), DisposeAfterUse::YES), DisposeAfterUse::YES);
+		}
+	} else {
+		delete stream;
+	}
+}
+
+} // End of namespace ZVision
diff --git a/engines/zvision/video/zork_avi_decoder.h b/engines/zvision/video/zork_avi_decoder.h
new file mode 100644
index 0000000000..ec2be1bb13
--- /dev/null
+++ b/engines/zvision/video/zork_avi_decoder.h
@@ -0,0 +1,60 @@
+/* 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.
+ *
+ *
+ */
+
+#ifndef ZORK_AVI_DECODER_H
+#define ZORK_AVI_DECODER_H
+
+#include "video/avi_decoder.h"
+ 
+
+namespace ZVision {
+
+class ZorkAVIDecoder : public Video::AVIDecoder {
+public:
+	ZorkAVIDecoder(Audio::Mixer::SoundType soundType = Audio::Mixer::kPlainSoundType) :
+	  Video::AVIDecoder(soundType) {}
+
+	  virtual ~ZorkAVIDecoder() {}
+
+private:
+	class ZorkAVIAudioTrack : public Video::AVIDecoder::AVIAudioTrack {
+	public:
+		ZorkAVIAudioTrack(const AVIStreamHeader &streamHeader, const PCMWaveFormat &waveFormat, Audio::Mixer::SoundType soundType) :
+			Video::AVIDecoder::AVIAudioTrack(streamHeader, waveFormat, soundType) {}
+		virtual ~ZorkAVIAudioTrack() {}
+
+		void queueSound(Common::SeekableReadStream *stream);
+	};
+
+	Video::AVIDecoder::AVIAudioTrack *createAudioTrack(Video::AVIDecoder::AVIStreamHeader sHeader, Video::AVIDecoder::PCMWaveFormat wvInfo);
+
+private:
+	// Audio Codecs
+	enum {
+		kWaveFormatZorkPCM = 17	// special Zork PCM audio format (clashes with MS IMA ADPCM)
+	};
+};
+
+} // End of namespace ZVision
+ 
+#endif