static void
prep_infoblock(ide_device_info *device)
{
ide_device_infoblock *infoblock = &device->infoblock;
B_BENDIAN_TO_HOST_MULTI((uint16 *)infoblock->serial_number,
sizeof(infoblock->serial_number) / 2);
B_BENDIAN_TO_HOST_MULTI( (uint16 *)infoblock->firmware_version,
sizeof(infoblock->firmware_version) / 2);
B_BENDIAN_TO_HOST_MULTI( (uint16 *)infoblock->model_number,
sizeof(infoblock->model_number) / 2);
infoblock->LBA_total_sectors = B_LENDIAN_TO_HOST_INT32(infoblock->LBA_total_sectors);
infoblock->LBA48_total_sectors = B_LENDIAN_TO_HOST_INT64(infoblock->LBA48_total_sectors);
}
Layer*
Layer::readLayer(BFile& file, ImageView* imageView, int32 new_id,
bool is_little_endian, int32 compression_method)
{
// This is the new way of reading the layers.
int32 marker;
if (file.Read(&marker,sizeof(int32)) != sizeof(int32))
return NULL;
if (is_little_endian)
marker = B_LENDIAN_TO_HOST_INT32(marker);
else
marker = B_BENDIAN_TO_HOST_INT32(marker);
if (marker != PROJECT_FILE_LAYER_START_MARKER)
return NULL;
int32 width;
int32 height;
layer_type layerType;
int32 layer_visibility;
int64 length;
if (file.Read(&width,sizeof(int32)) != sizeof(int32))
return NULL;
if (file.Read(&height,sizeof(int32)) != sizeof(int32))
return NULL;
if (file.Read(&layerType,sizeof(int32)) != sizeof(int32))
return NULL;
if (file.Read(&layer_visibility,sizeof(int32)) != sizeof(int32))
return NULL;
if (file.Read(&length,sizeof(int64)) != sizeof(int64))
return NULL;
if (is_little_endian) {
width = B_LENDIAN_TO_HOST_INT32(width);
height = B_LENDIAN_TO_HOST_INT32(height);
layerType = layer_type(B_LENDIAN_TO_HOST_INT32(layerType));
length = B_LENDIAN_TO_HOST_INT64(length);
}
else {
width = B_BENDIAN_TO_HOST_INT32(width);
height = B_BENDIAN_TO_HOST_INT32(height);
layerType = layer_type(B_BENDIAN_TO_HOST_INT32(layerType));
length = B_BENDIAN_TO_HOST_INT64(length);
}
Layer* layer = new Layer(BRect(0, 0, width - 1, height - 1), new_id,
imageView, layerType);
layer->SetVisibility((uint32(layer_visibility) == 0xFFFFFFFF));
int8* bits = (int8*)layer->Bitmap()->Bits();
if (file.Read(bits,length) != length) {
delete layer;
return NULL;
}
// Read the end-marker.
if (file.Read(&marker,sizeof(int32)) != sizeof(int32)) {
delete layer;
return NULL;
}
if (is_little_endian)
marker = B_LENDIAN_TO_HOST_INT32(marker);
else
marker = B_BENDIAN_TO_HOST_INT32(marker);
if (marker != PROJECT_FILE_LAYER_END_MARKER) {
delete layer;
return NULL;
}
// Here try to read the extra-data block.
if (file.Read(&marker,sizeof(int32)) == sizeof(int32)) {
if (is_little_endian)
marker = B_LENDIAN_TO_HOST_INT32(marker);
else
marker = B_BENDIAN_TO_HOST_INT32(marker);
if (marker == PROJECT_FILE_LAYER_EXTRA_DATA_START_MARKER) {
// Read the length of this section
int32 length;
if (file.Read(&length,sizeof(int32)) != sizeof(int32)) {
delete layer;
return NULL;
}
if (is_little_endian)
length = B_LENDIAN_TO_HOST_INT32(length);
else
length = B_BENDIAN_TO_HOST_INT32(length);
// Read the transparency coefficient
float coeff;
if (file.Read(&coeff,sizeof(float)) != sizeof(float)) {
delete layer;
return NULL;
}
if (is_little_endian)
coeff = B_LENDIAN_TO_HOST_FLOAT(coeff);
else
coeff = B_BENDIAN_TO_HOST_FLOAT(coeff);
layer->SetTransparency(coeff);
length -= sizeof(float);
// Skip the extra data that we do not recognize.
file.Seek(length,SEEK_CUR);
// Here we should get the end-marker for layer's extra data
if (file.Read(&marker,sizeof(int32)) != sizeof(int32)) {
delete layer;
return NULL;
}
if (is_little_endian)
marker = B_LENDIAN_TO_HOST_INT32(marker);
else
marker = B_BENDIAN_TO_HOST_INT32(marker);
if (marker != PROJECT_FILE_LAYER_EXTRA_DATA_END_MARKER) {
delete layer;
return NULL;
}
}
else {
// Somehow -sizeof(int32) does not seem to work????
file.Seek(-4,SEEK_CUR);
}
}
// Before returning calculate the layer's miniature image.
layer->calc_mini_image();
return layer;
}
