icns_type_t icns_get_type_from_mask(icns_image_t iconImage)
{
icns_icon_info_t iconInfo;
iconInfo.iconWidth = iconImage.imageWidth;
iconInfo.iconHeight = iconImage.imageHeight;
iconInfo.iconChannels = iconImage.imageChannels;
iconInfo.iconPixelDepth = iconImage.imagePixelDepth;
iconInfo.iconBitDepth = iconInfo.iconPixelDepth * iconInfo.iconChannels;
iconInfo.iconRawDataSize = iconImage.imageDataSize;
if(iconInfo.iconBitDepth == 1)
{
int flatSize = ((iconInfo.iconWidth * iconInfo.iconHeight) / 8);
if(iconInfo.iconRawDataSize == (flatSize * 2) )
{
iconInfo.isImage = 1;
iconInfo.isMask = 1;
}
else
{
iconInfo.isImage = 0;
iconInfo.isMask = 1;
}
}
else
{
iconInfo.isImage = 0;
iconInfo.isMask = 1;
}
return icns_get_type_from_image_info(iconInfo);
}
ICNSSaver::ICNSSaver(BPositionIO *stream, uint32 rowBytes, icns_type_t type)
{
fCreated = false;
icns_icon_info_t imageTypeInfo = icns_get_image_info_for_type(type);
int iconWidth = imageTypeInfo.iconWidth;
int iconHeight = imageTypeInfo.iconWidth;
int bpp = 32;
uint8 *bits = new uint8[iconWidth * iconHeight * sizeof(uint32)];
uint8 *rowPtr = bits;
for (int i = 0; i < iconHeight; i++) {
stream->Read(rowPtr, rowBytes);
uint8 *bytePtr = rowPtr;
for (int j=0; j < iconWidth; j++) {
uint8 temp = bytePtr[0];
bytePtr[0] = bytePtr[2];
bytePtr[2] = temp;
bytePtr += sizeof(uint32);
}
rowPtr += iconWidth * sizeof(uint32);
}
icns_create_family(&fIconFamily);
icns_image_t icnsImage;
icnsImage.imageWidth = iconWidth;
icnsImage.imageHeight = iconHeight;
icnsImage.imageChannels = 4;
icnsImage.imagePixelDepth = 8;
icnsImage.imageDataSize = iconWidth * iconHeight * 4;
icnsImage.imageData = bits;
icns_icon_info_t iconInfo;
iconInfo.isImage = 1;
iconInfo.iconWidth = icnsImage.imageWidth;
iconInfo.iconHeight = icnsImage.imageHeight;
iconInfo.iconBitDepth = bpp;
iconInfo.iconChannels = (bpp == 32 ? 4 : 1);
iconInfo.iconPixelDepth = bpp / iconInfo.iconChannels;
icns_type_t iconType = icns_get_type_from_image_info(iconInfo);
if (iconType == ICNS_NULL_TYPE) {
delete bits;
free(fIconFamily);
fIconFamily = NULL;
return;
}
icns_element_t *iconElement = NULL;
int icnsErr = icns_new_element_from_image(&icnsImage, iconType,
&iconElement);
if (iconElement != NULL) {
if (icnsErr == ICNS_STATUS_OK) {
icns_set_element_in_family(&fIconFamily, iconElement);
fCreated = true;
}
free(iconElement);
}
if (iconType != ICNS_1024x1024_32BIT_ARGB_DATA
&& iconType != ICNS_512x512_32BIT_ARGB_DATA
&& iconType != ICNS_256x256_32BIT_ARGB_DATA)
{
icns_type_t maskType = icns_get_mask_type_for_icon_type(iconType);
icns_image_t icnsMask;
icns_init_image_for_type(maskType, &icnsMask);
uint32 iconDataOffset = 0;
uint32 maskDataOffset = 0;
while (iconDataOffset < icnsImage.imageDataSize
&& maskDataOffset < icnsMask.imageDataSize) {
icnsMask.imageData[maskDataOffset] =
icnsImage.imageData[iconDataOffset + 3];
iconDataOffset += 4;
maskDataOffset += 1;
}
icns_element_t *maskElement = NULL;
icnsErr = icns_new_element_from_mask(&icnsMask, maskType,
&maskElement);
if (maskElement != NULL) {
if (icnsErr == ICNS_STATUS_OK)
icns_set_element_in_family(&fIconFamily, maskElement);
else
fCreated = false;
free(maskElement);
}
icns_free_image(&icnsMask);
}
if (!fCreated) {
free(fIconFamily);
fIconFamily = NULL;
}
delete bits;
}
