1 files changed, 121 insertions, 0 deletions
diff --git a/engines/parallaction/disk.cpp b/engines/parallaction/disk.cpp
new file mode 100644
index 0000000000..a58fa35655
--- /dev/null
+++ b/engines/parallaction/disk.cpp
@@ -0,0 +1,121 @@
+#include "parallaction/disk.h"
+#include "parallaction/graphics.h"
+#include "parallaction/iff.h"
+
+namespace Parallaction {
+
+void ILBMLoader::setupBuffer(uint32 w, uint32 h) {
+	_intBuffer = 0;
+	switch (_bodyMode) {
+	case BODYMODE_SURFACE:
+		if (!_surf) {
+			_surf = new Graphics::Surface;
+			assert(_surf);
+		}
+		_surf->create(w, h, 1);
+		_mode  = ILBMDecoder::ILBM_UNPACK_PLANES;
+		_intBuffer = (byte*)_surf->pixels;
+		break;
+
+	case BODYMODE_MASKBUFFER:
+		if (!_maskBuffer) {
+			_maskBuffer = new MaskBuffer;
+			assert(_maskBuffer);
+		}
+		_maskBuffer->create(w, h);
+		_mode  = ILBMDecoder::ILBM_2_PACK_PLANES;
+		_intBuffer = _maskBuffer->data;
+		break;
+
+	case BODYMODE_PATHBUFFER:
+		if (!_pathBuffer) {
+			_pathBuffer = new PathBuffer;
+			assert(_pathBuffer);
+		}
+		_pathBuffer->create(w, h);
+		_mode  = ILBMDecoder::ILBM_1_PACK_PLANES;
+		_intBuffer = _pathBuffer->data;
+		break;
+
+	default:
+		error("Invalid bodyMode '%i' for ILBMLoader", _bodyMode);
+		break;
+	}
+}
+
+bool ILBMLoader::callback(IFFChunk &chunk) {
+	switch (chunk._type) {
+	case ID_BMHD:
+		_decoder.loadHeader(chunk._stream);
+		break;
+
+	case ID_CMAP:
+		if (_palette) {
+			chunk._stream->read(_palette, chunk._size);
+		}
+		break;
+
+	case ID_CRNG:
+		if (_crng) {
+			PaletteFxRange *ptr = &_crng[_numCRNG];
+			chunk._stream->read((byte*)ptr, chunk._size);
+			ptr->_timer = FROM_BE_16(ptr->_timer);
+			ptr->_step = FROM_BE_16(ptr->_step);
+			ptr->_flags = FROM_BE_16(ptr->_flags);
+			++_numCRNG;
+		}
+		break;
+
+	case ID_BODY:
+		setupBuffer(_decoder._header.width, _decoder._header.height);
+		assert(_intBuffer);
+		_decoder.loadBitmap(_mode, _intBuffer, chunk._stream);
+		return true;	// stop the parser
+	}
+
+	return false;
+}
+
+void ILBMLoader::load(Common::ReadStream *in, bool disposeStream) {
+	IFFParser parser(in, disposeStream);
+	Common::Functor1Mem< IFFChunk&, bool, ILBMLoader > c(this, &ILBMLoader::callback);
+	parser.parse(c);
+}
+
+ILBMLoader::ILBMLoader(uint32 bodyMode, byte *palette, PaletteFxRange *crng) {
+	_bodyMode = bodyMode;
+	_surf = 0;
+	_maskBuffer = 0;
+	_pathBuffer = 0;
+	_palette = palette;
+	_crng = crng;
+	_numCRNG = 0;
+}
+
+ILBMLoader::ILBMLoader(Graphics::Surface *surf, byte *palette, PaletteFxRange *crng) {
+	_bodyMode = ILBMLoader::BODYMODE_SURFACE;
+	_surf = surf;
+	_palette = palette;
+	_crng = crng;
+	_numCRNG = 0;
+}
+
+ILBMLoader::ILBMLoader(MaskBuffer *buffer) {
+	_bodyMode = ILBMLoader::BODYMODE_MASKBUFFER;
+	_maskBuffer = buffer;
+	_palette = 0;
+	_crng = 0;
+	_numCRNG = 0;
+}
+
+ILBMLoader::ILBMLoader(PathBuffer *buffer) {
+	_bodyMode = ILBMLoader::BODYMODE_PATHBUFFER;
+	_pathBuffer = buffer;
+	_palette = 0;
+	_crng = 0;
+	_numCRNG = 0;
+}
+
+
+
+}