Initial commit

engines/ags/shared/ac/view.cpp

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+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "ags/shared/ac/view.h"
+#include "ags/shared/util/stream.h"
+
+namespace AGS3 {
+
+using AGS::Shared::Stream;
+
+ViewFrame::ViewFrame()
+	: pic(0)
+	, xoffs(0)
+	, yoffs(0)
+	, speed(0)
+	, flags(0)
+	, sound(-1)
+	, audioclip(-1) {
+	reserved_for_future[0] = 0;
+	reserved_for_future[1] = 0;
+}
+
+void ViewFrame::ReadFromFile(Stream *in) {
+	pic = in->ReadInt32();
+	xoffs = in->ReadInt16();
+	yoffs = in->ReadInt16();
+	speed = in->ReadInt16();
+	in->ReadInt16(); // alignment padding to int32
+	flags = in->ReadInt32();
+	sound = in->ReadInt32();
+	in->ReadInt32(); // reserved 1
+	in->ReadInt32(); // reserved 1
+}
+
+void ViewFrame::WriteToFile(Stream *out) {
+	out->WriteInt32(pic);
+	out->WriteInt16(xoffs);
+	out->WriteInt16(yoffs);
+	out->WriteInt16(speed);
+	out->WriteInt16(0); // alignment padding to int32
+	out->WriteInt32(flags);
+	out->WriteInt32(sound);
+	out->WriteInt32(0);
+	out->WriteInt32(0);
+}
+
+ViewLoopNew::ViewLoopNew()
+	: numFrames(0)
+	, flags(0) {
+}
+
+bool ViewLoopNew::RunNextLoop() {
+	return (flags & LOOPFLAG_RUNNEXTLOOP);
+}
+
+void ViewLoopNew::Initialize(int frameCount) {
+	numFrames = frameCount;
+	flags = 0;
+	// an extra frame is allocated to prevent crashes with empty loops
+	frames.resize(numFrames > 0 ? numFrames : 1);
+}
+
+void ViewLoopNew::Dispose() {
+	frames.clear();
+	numFrames = 0;
+}
+
+void ViewLoopNew::WriteToFile_v321(Stream *out) {
+	out->WriteInt16(static_cast<uint16_t>(numFrames));
+	out->WriteInt32(flags);
+	WriteFrames(out);
+}
+
+void ViewLoopNew::WriteFrames(Stream *out) {
+	for (int i = 0; i < numFrames; ++i) {
+		frames[i].WriteToFile(out);
+	}
+}
+
+void ViewLoopNew::ReadFromFile_v321(Stream *in) {
+	Initialize(static_cast<uint16_t>(in->ReadInt16()));
+	flags = in->ReadInt32();
+	ReadFrames(in);
+}
+
+void ViewLoopNew::ReadFrames(Stream *in) {
+	for (int i = 0; i < numFrames; ++i) {
+		frames[i].ReadFromFile(in);
+	}
+}
+
+ViewStruct::ViewStruct()
+	: numLoops(0) {
+}
+
+void ViewStruct::Initialize(int loopCount) {
+	numLoops = loopCount;
+	loops.resize(numLoops);
+}
+
+void ViewStruct::Dispose() {
+	loops.clear();
+	numLoops = 0;
+}
+
+void ViewStruct::WriteToFile(Stream *out) {
+	out->WriteInt16(static_cast<uint16_t>(numLoops));
+	for (int i = 0; i < numLoops; i++) {
+		loops[i].WriteToFile_v321(out);
+	}
+}
+
+void ViewStruct::ReadFromFile(Stream *in) {
+	Initialize(static_cast<uint16_t>(in->ReadInt16()));
+
+	for (int i = 0; i < numLoops; i++) {
+		loops[i].ReadFromFile_v321(in);
+	}
+}
+
+ViewStruct272::ViewStruct272()
+	: numloops(0) {
+	memset(numframes, 0, sizeof(numframes));
+	memset(loopflags, 0, sizeof(loopflags));
+}
+
+void ViewStruct272::ReadFromFile(Stream *in) {
+	numloops = in->ReadInt16();
+	for (int i = 0; i < 16; ++i) {
+		numframes[i] = in->ReadInt16();
+	}
+	in->ReadInt16(); // alignment padding to int32
+	in->ReadArrayOfInt32(loopflags, 16);
+	for (int j = 0; j < 16; ++j) {
+		for (int i = 0; i < 20; ++i) {
+			frames[j][i].ReadFromFile(in);
+		}
+	}
+}
+
+void Convert272ViewsToNew(const std::vector<ViewStruct272> &oldv, std::vector<ViewStruct> &newv) {
+	for (size_t a = 0; a < oldv.size(); a++) {
+		newv[a].Initialize(oldv[a].numloops);
+
+		for (int b = 0; b < oldv[a].numloops; b++) {
+			newv[a].loops[b].Initialize(oldv[a].numframes[b]);
+
+			if ((oldv[a].numframes[b] > 0) &&
+			        (oldv[a].frames[b][oldv[a].numframes[b] - 1].pic == -1)) {
+				newv[a].loops[b].flags = LOOPFLAG_RUNNEXTLOOP;
+				newv[a].loops[b].numFrames--;
+			} else
+				newv[a].loops[b].flags = 0;
+
+			for (int c = 0; c < newv[a].loops[b].numFrames; c++)
+				newv[a].loops[b].frames[c] = oldv[a].frames[b][c];
+		}
+	}
+}
+
+} // namespace AGS3