SCI: Moved all the video related functions in a separate file

svn-id: r51110

1 files changed, 300 insertions, 0 deletions

diff --git a/engines/sci/engine/kvideo.cpp b/engines/sci/engine/kvideo.cpp
new file mode 100644
index 0000000000..cd103dade7
--- /dev/null
+++ b/engines/sci/engine/kvideo.cpp
@@ -0,0 +1,300 @@
+/* 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include "engines/util.h"
+#include "sci/engine/state.h"
+#include "sci/graphics/helpers.h"
+#include "sci/graphics/cursor.h"
+#include "sci/graphics/palette.h"
+#include "sci/graphics/screen.h"
+#include "graphics/cursorman.h"
+#include "graphics/video/avi_decoder.h"
+#include "graphics/video/qt_decoder.h"
+#include "sci/video/seq_decoder.h"
+#ifdef ENABLE_SCI32
+#include "sci/video/vmd_decoder.h"
+#endif
+
+namespace Sci {
+
+void playVideo(Graphics::VideoDecoder *videoDecoder) {
+	if (!videoDecoder)
+		return;
+
+	byte *scaleBuffer = 0;
+	uint16 width = videoDecoder->getWidth();
+	uint16 height = videoDecoder->getHeight();
+	uint16 screenWidth = g_system->getWidth();
+	uint16 screenHeight = g_system->getHeight();
+
+	if (screenWidth == 640 && width <= 320 && height <= 240) {
+		assert(videoDecoder->getPixelFormat().bytesPerPixel == 1);
+		width *= 2;
+		height *= 2;
+		scaleBuffer = new byte[width * height];
+	}
+
+	uint16 x = (screenWidth - width) / 2;
+	uint16 y = (screenHeight - height) / 2;
+	bool skipVideo = false;
+
+	while (!g_engine->shouldQuit() && !videoDecoder->endOfVideo() && !skipVideo) {
+		if (videoDecoder->needsUpdate()) {
+			Graphics::Surface *frame = videoDecoder->decodeNextFrame();
+			if (frame) {
+				if (scaleBuffer) {
+					// TODO: Probably should do aspect ratio correction in e.g. GK1 Windows 
+					g_sci->_gfxScreen->scale2x((byte *)frame->pixels, scaleBuffer, videoDecoder->getWidth(), videoDecoder->getHeight());
+					g_system->copyRectToScreen(scaleBuffer, width, x, y, width, height);
+				} else
+					g_system->copyRectToScreen((byte *)frame->pixels, frame->pitch, x, y, width, height);
+
+				if (videoDecoder->hasDirtyPalette())
+					videoDecoder->setSystemPalette();
+
+				g_system->updateScreen();
+			}
+		}
+
+		Common::Event event;
+		while (g_system->getEventManager()->pollEvent(event)) {
+			if ((event.type == Common::EVENT_KEYDOWN && event.kbd.keycode == Common::KEYCODE_ESCAPE) || event.type == Common::EVENT_LBUTTONUP)
+				skipVideo = true;
+		}
+
+		g_system->delayMillis(10);
+	}
+
+	delete[] scaleBuffer;
+	delete videoDecoder;
+}
+
+reg_t kShowMovie(EngineState *s, int argc, reg_t *argv) {
+	// Hide the cursor if it's showing and then show it again if it was
+	// previously visible.
+	bool reshowCursor = g_sci->_gfxCursor->isVisible();
+	if (reshowCursor)
+		g_sci->_gfxCursor->kernelHide();
+
+	uint16 screenWidth = g_system->getWidth();
+	uint16 screenHeight = g_system->getHeight();
+		
+	Graphics::VideoDecoder *videoDecoder = 0;
+
+	if (argv[0].segment != 0) {
+		Common::String filename = s->_segMan->getString(argv[0]);
+
+		if (g_sci->getPlatform() == Common::kPlatformMacintosh) {
+			// Mac QuickTime
+			// The only argument is the string for the video
+
+			// HACK: Switch to 16bpp graphics for Cinepak.
+			initGraphics(screenWidth, screenHeight, screenWidth > 320, NULL);
+
+			if (g_system->getScreenFormat().bytesPerPixel == 1) {
+				error("This video requires >8bpp color to be displayed, but could not switch to RGB color mode.");
+				return NULL_REG;
+			}
+
+			videoDecoder = new Graphics::QuickTimeDecoder();
+			if (!videoDecoder->loadFile(filename))
+				error("Could not open '%s'", filename.c_str());
+		} else {
+			// DOS SEQ
+			// SEQ's are called with no subops, just the string and delay
+			SeqDecoder *seqDecoder = new SeqDecoder();
+			seqDecoder->setFrameDelay(argv[1].toUint16()); // Time between frames in ticks
+			videoDecoder = seqDecoder;
+
+			if (!videoDecoder->loadFile(filename)) {
+				warning("Failed to open movie file %s", filename.c_str());
+				delete videoDecoder;
+				videoDecoder = 0;
+			}
+		}
+	} else {
+		// Windows AVI
+		// TODO: This appears to be some sort of subop. case 0 contains the string
+		// for the video, so we'll just play it from there for now.
+
+#ifdef ENABLE_SCI32
+		if (getSciVersion() >= SCI_VERSION_2_1) {
+			// SCI2.1 always has argv[0] as 1, the rest of the arguments seem to
+			// follow SCI1.1/2.
+			if (argv[0].toUint16() != 1)
+				error("SCI2.1 kShowMovie argv[0] not 1");
+			argv++;
+			argc--;
+		}
+#endif
+		switch (argv[0].toUint16()) {
+		case 0: {
+			Common::String filename = s->_segMan->getString(argv[1]);
+			videoDecoder = new Graphics::AviDecoder(g_system->getMixer());
+
+			if (!videoDecoder->loadFile(filename.c_str())) {
+				warning("Failed to open movie file %s", filename.c_str());
+				delete videoDecoder;
+				videoDecoder = 0;
+			}
+			break;
+		}
+		default:
+			warning("Unhandled SCI kShowMovie subop %d", argv[1].toUint16());
+		}
+	}
+
+	if (videoDecoder) {
+		playVideo(videoDecoder);
+
+		// HACK: Switch back to 8bpp if we played a QuickTime video.
+		// We also won't be copying the screen to the SCI screen...
+		if (g_system->getScreenFormat().bytesPerPixel != 1)
+			initGraphics(screenWidth, screenHeight, screenWidth > 320);
+		else {
+			g_sci->_gfxScreen->kernelSyncWithFramebuffer();
+			g_sci->_gfxPalette->kernelSyncScreenPalette();
+		}
+	}
+
+	if (reshowCursor)
+		g_sci->_gfxCursor->kernelShow();
+
+	return s->r_acc;
+}
+
+#ifdef ENABLE_SCI32
+
+reg_t kPlayVMD(EngineState *s, int argc, reg_t *argv) {
+	uint16 operation = argv[0].toUint16();
+	Graphics::VideoDecoder *videoDecoder = 0;
+	bool reshowCursor = g_sci->_gfxCursor->isVisible();
+	Common::String fileName, warningMsg;
+
+	switch (operation) {
+	case 0:	// init
+		// This is actually meant to init the video file, but we play it instead
+		fileName = s->_segMan->derefString(argv[1]);
+		// TODO: argv[2] (usually null). When it exists, it points to an "Event" object,
+		// that holds no data initially (e.g. in the intro of Phantasmagoria 1 demo).
+		// Perhaps it's meant for syncing
+		if (argv[2] != NULL_REG)
+			warning("kPlayVMD: third parameter isn't 0 (it's %04x:%04x - %s)", PRINT_REG(argv[2]), s->_segMan->getObjectName(argv[2]));
+
+		videoDecoder = new VMDDecoder(g_system->getMixer());
+
+		if (reshowCursor)
+			g_sci->_gfxCursor->kernelHide();
+
+		if (videoDecoder && videoDecoder->loadFile(fileName))
+			playVideo(videoDecoder);
+
+		if (reshowCursor)
+			g_sci->_gfxCursor->kernelShow();
+		break;
+	case 1:
+	{
+		// Set VMD parameters. Called with a maximum of 6 parameters:
+		//
+		// x, y, flags, gammaBoost, gammaFirst, gammaLast
+		//
+		// Flags are as follows:
+		// bit 0		doubled
+		// bit 1		"drop frames"?
+		// bit 2		insert black lines
+		// bit 3		unknown
+		// bit 4		gamma correction
+		// bit 5		hold black frame
+		// bit 6		hold last frame
+		// bit 7		unknown
+		// bit 8		stretch
+
+		// gammaBoost boosts palette colors in the range gammaFirst to
+		// gammaLast, but only if bit 4 in flags is set. Percent value such that
+		// 0% = no amplification These three parameters are optional if bit 4 is
+		// clear. Also note that the x, y parameters play subtle games if used
+		// with subfx 21. The subtleness has to do with creation of temporary
+		// planes and positioning relative to such planes.
+
+		int flags = argv[3].offset;
+		Common::String flagspec;
+
+		if (argc > 3) {
+			if (flags & 1)
+				flagspec += "doubled ";
+			if (flags & 2)
+				flagspec += "dropframes ";
+			if (flags & 4)
+				flagspec += "blacklines ";
+			if (flags & 8)
+				flagspec += "bit3 ";
+			if (flags & 16)
+				flagspec += "gammaboost ";
+			if (flags & 32)
+				flagspec += "holdblack ";
+			if (flags & 64)
+				flagspec += "holdlast ";
+			if (flags & 128)
+				flagspec += "bit7 ";
+			if (flags & 256)
+				flagspec += "stretch";
+
+			warning("VMDFlags: %s", flagspec.c_str());
+		}
+
+		warning("x, y: %d, %d", argv[1].offset, argv[2].offset);
+
+		if (argc > 4 && flags & 16)
+			warning("gammaBoost: %d%% between palette entries %d and %d", argv[4].offset, argv[5].offset, argv[6].offset);
+		break;
+	}
+	case 6:
+		// Play, perhaps? Or stop? This is the last call made, and takes no extra parameters
+	case 14:
+		// Takes an additional integer parameter (e.g. 3)
+	case 16:
+		// Takes an additional parameter, usually 0
+	case 21:
+		// Looks to be setting the video size and position. Called with 4 extra integer
+		// parameters (e.g. 86, 41, 235, 106)
+	default:
+		warningMsg = "PlayVMD - unsupported subop. Params: " +
+									Common::String::printf("%d", argc) + " (";
+
+		for (int i = 0; i < argc; i++) {
+			warningMsg +=  Common::String::printf("%04x:%04x", PRINT_REG(argv[i]));
+			warningMsg += (i == argc - 1 ? ")" : ", ");
+		}
+
+		warning("%s", warningMsg.c_str());
+		break;
+	}
+
+	return s->r_acc;
+}
+
+#endif
+
+} // End of namespace Sci