static int add_png_to_family(icns_family_t **iconFamily, char *pngname)
{
FILE *pngfile;
int icnsErr = ICNS_STATUS_OK;
icns_image_t icnsImage;
icns_image_t icnsMask;
icns_type_t iconType;
icns_type_t maskType;
icns_icon_info_t iconInfo;
icns_element_t *iconElement = NULL;
icns_element_t *maskElement = NULL;
char iconStr[5] = {0,0,0,0,0};
char maskStr[5] = {0,0,0,0,0};
int iconDataOffset = 0;
int maskDataOffset = 0;
char isHiDPI = 0;
int pngnamelen = strlen(pngname);
int namea2xpng = pngnamelen - 7;
png_bytep buffer;
int width, height, bpp;
if(namea2xpng > 0) {
if(memcmp(&pngname[namea2xpng],"@2x.png",7) == 0) {
isHiDPI = 1;
}
if(memcmp(&pngname[namea2xpng],"@2X.PNG",7) == 0) {
isHiDPI = 1;
}
}
pngfile = fopen(pngname, "rb");
if (pngfile == NULL)
{
fprintf(stderr, "Could not open '%s' for reading: %s\n", pngname, strerror(errno));
return FALSE;
}
if (!read_png(pngfile, &buffer, &bpp, &width, &height))
{
fprintf(stderr, "Failed to read PNG file\n");
fclose(pngfile);
return FALSE;
}
fclose(pngfile);
icnsImage.imageWidth = width;
icnsImage.imageHeight = height;
icnsImage.imageChannels = 4;
icnsImage.imagePixelDepth = 8;
icnsImage.imageDataSize = width * height * 4;
icnsImage.imageData = buffer;
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;
iconType = icns_get_type_from_image_info_advanced(iconInfo,isHiDPI);
maskType = icns_get_mask_type_for_icon_type(iconType);
icns_type_str(iconType,iconStr);
icns_type_str(maskType,maskStr);
/* Only convert the icons that match sizes icns supports */
if (iconType == ICNS_NULL_TYPE)
{
fprintf(stderr, "Unable to determine icon type: PNG file '%s' is %dx%d\n", pngname, width, height);
free(buffer);
return FALSE;
}
if (bpp != 32)
{
fprintf(stderr, "Bit depth %d unsupported in '%s'\n", bpp, pngname);
free(buffer);
return FALSE;
}
icns_set_print_errors(0);
if (icns_get_element_from_family(*iconFamily, iconType, &iconElement) == ICNS_STATUS_OK)
{
icns_set_print_errors(1);
fprintf(stderr, "Duplicate icon element of type '%s' detected (%s)\n", iconStr, pngname);
free(buffer);
return FALSE;
}
icns_set_print_errors(1);
#if DEBUG_ICNSUTIL
if(maskType != ICNS_NULL_TYPE)
{
printf("Using icns type '%s', mask '%s' for '%s'\n", iconStr, maskStr, pngname);
}
else
{
printf("Using icns type '%s' (ARGB) for '%s'\n", iconStr, pngname);
}
#endif
icnsErr = icns_new_element_from_image(&icnsImage, iconType, &iconElement);
if (iconElement != NULL)
{
if (icnsErr == ICNS_STATUS_OK)
{
icns_set_element_in_family(iconFamily, iconElement);
}
free(iconElement);
}
if(maskType != ICNS_NULL_TYPE)
{
icns_init_image_for_type(maskType, &icnsMask);
iconDataOffset = 0;
maskDataOffset = 0;
while ((iconDataOffset < icnsImage.imageDataSize) && (maskDataOffset < icnsMask.imageDataSize))
{
icnsMask.imageData[maskDataOffset] = icnsImage.imageData[iconDataOffset+3];
iconDataOffset += 4; /* move to the next alpha byte */
maskDataOffset += 1; /* move to the next byte */
}
icnsErr = icns_new_element_from_mask(&icnsMask, maskType, &maskElement);
if (maskElement != NULL)
{
if (icnsErr == ICNS_STATUS_OK)
{
icns_set_element_in_family(iconFamily, maskElement);
}
free(maskElement);
}
icns_free_image(&icnsMask);
}
free(buffer);
return TRUE;
}
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;
}