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myst3 added a function to uncompress the faces' watermasks

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This commit is contained in:
bbouclet 2009-09-17 13:40:15 +02:00 committed by Bastien Bouclet
parent e50eace777
commit a82878aca7
3 changed files with 47 additions and 1 deletions
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2
engines/myst3/directorysubentry.h
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@ -36,7 +36,7 @@ class DirectorySubEntry {
byte _type;
public:
enum ResourceType {kFaceTexture};
enum ResourceType {kFaceTexture, kFaceMask};
void readFromStream(Common::SeekableReadStream &inStream);
void dump();

45
engines/myst3/room.cpp
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@ -25,6 +25,8 @@
#include "engines/myst3/room.h"
#include "common/debug.h"
namespace Myst3 {
void Room::setFaceTextureJPEG(int face, Graphics::JPEG *jpeg) {
@ -61,6 +63,49 @@ void Room::setFaceTextureRGB(int face, Graphics::Surface *texture) {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
}
void Room::dumpFaceMask(Archive &archive, uint16 index, int face) {
byte *mask = new byte[640 * 640];
memset(mask, 0, sizeof(mask));
uint32 headerOffset = 0;
uint32 dataOffset = 0;
Common::MemoryReadStream *maskStream = archive.dumpToMemory(index, face, DirectorySubEntry::kFaceMask);
while (headerOffset < 400) {
int blockX = (headerOffset / sizeof(dataOffset)) % 10;
int blockY = (headerOffset / sizeof(dataOffset)) / 10;
maskStream->seek(headerOffset, SEEK_SET);
dataOffset = maskStream->readUint32LE();
headerOffset = maskStream->pos();
debug("%d %d %d %d", headerOffset, dataOffset, blockX, blockY);
if (dataOffset != 0) {
maskStream->seek(dataOffset, SEEK_SET);
for(int i = 63; i >= 0; i--) {
int x = 0;
byte numValues = maskStream->readByte();
for (int j = 0; j < numValues; j++) {
byte repeat = maskStream->readByte();
byte value = maskStream->readByte();
for (int k = 0; k < repeat; k++) {
mask[((blockY * 64) + i) * 640 + blockX * 64 + x] = value;
x++;
}
}
}
}
}
Common::DumpFile outFile;
outFile.open("dump/1-1.masku");
outFile.write(mask, sizeof(mask));
outFile.close();
delete[] mask;
}
void Room::load(Archive &archive, uint16 index) {
for (int i = 0; i < 6; i++) {
Common::MemoryReadStream *jpegStream = archive.dumpToMemory(index, i + 1, DirectorySubEntry::kFaceTexture);

1
engines/myst3/room.h
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@ -51,6 +51,7 @@ class Room {
void setFaceTextureJPEG(int face, Graphics::JPEG *jpeg);
void draw();
void load(Archive &archive, uint16 index);
void dumpFaceMask(Archive &archive, uint16 index, int face);
};
} // end of namespace Myst3