diff options
Diffstat (limited to 'hl/tools/gif2h5/writehdf.c')
| -rw-r--r-- | hl/tools/gif2h5/writehdf.c | 410 |
1 files changed, 410 insertions, 0 deletions
diff --git a/hl/tools/gif2h5/writehdf.c b/hl/tools/gif2h5/writehdf.c new file mode 100644 index 0000000..7afccdf --- /dev/null +++ b/hl/tools/gif2h5/writehdf.c @@ -0,0 +1,410 @@ +#include "gif.h" +#include <string.h> +#include <stdlib.h> +#include <string.h> + +/******************************************************************* +** Function: write_text_attribute +** Use: Just a small wrapper to write text attributes easily +********************************************************************/ +int write_text_attribute(hid_t dataset_id , char *attr_name , char *attr_value) { + + /* variables for the attributes */ + hsize_t attr_dims_size; /* dimensions for the attribute */ + hid_t attr_dataspace_id; /* dataspaces needed for the various attributes */ + hid_t attr_attr_id; /* attribute id */ + herr_t status; /* check return status */ + hid_t attr_type_id; + + + /* check strings */ + if (!attr_name || !attr_value) + return -1; + + /* figure out size of the data */ + attr_dims_size = strlen(attr_value) + 1; + + /* set the type to string */ + attr_type_id = H5Tcopy(H5T_C_S1); + H5Tset_size(attr_type_id , attr_dims_size); + + /* create the dataspace for the attribute */ + attr_dataspace_id = H5Screate_simple(1 , &attr_dims_size , NULL); + + /* create the attribute */ + attr_attr_id = H5Acreate(dataset_id , attr_name , attr_type_id , attr_dataspace_id , H5P_DEFAULT); + + /* write out the attribute data */ + if ((status = H5Awrite(attr_attr_id , attr_type_id , attr_value)) < 0) + return -1; + + /* close the attribute */ + if ((status = H5Aclose(attr_attr_id)) < 0) + return -1; + + /* close the dataspace */ + if ((status = H5Sclose(attr_dataspace_id)) < 0) { + fprintf(stderr , "Unable to close attribute dataspace. Aborting \n"); + return -1; + } + + return 0; + +} + +int +WriteHDF(GifMemoryStruct, HDFName , GIFFileName) +GIFTOMEM GifMemoryStruct; +char *HDFName; +char *GIFFileName; +{ + GIFHEAD gifHead; /* GIF Header structure */ + GIFIMAGEDESC* gifImageDesc; /* Logical Image Descriptor struct */ + + long ImageCount , /* number of images */ + CommentCount, /* number of comments */ + ApplicationCount , /* number of application extensions */ + PlainTextCount; /* number of plain text extensions */ + + char ImageName[256], /* Image name for the GR Image */ + CommentName[256], + ApplicationName[256], + PlainTextName[256]; + + char GroupName[VSNAMELENMAX]; /* so that we can name the subgroups appropriately */ + + /* H5 variables */ + hid_t file_id; /* H5 file id */ + hid_t image_id; /* H5 id for the whole image */ + hid_t pal_id; /* H5 id for the palette */ + herr_t status; /* status variable */ + hobj_ref_t pal_ref; /* Create a reference for the palette */ + + /* temp counter */ + int i; + + + + + + + /* get the GIFMem stuff */ + gifHead = *(GifMemoryStruct.GifHeader); + + /* get some data from gifHead */ + ImageCount = (WORD)gifHead.ImageCount; + CommentCount = (WORD)gifHead.CommentCount; + ApplicationCount = (WORD)gifHead.ApplicationCount; + PlainTextCount = (WORD)gifHead.PlainTextCount; + + /* get the main group name from GIFFileName */ + GroupName[0]= '/'; + if (strncpy(GroupName , GIFFileName , VSNAMELENMAX-2) == NULL) { + fprintf(stderr , "strncpy failed\n"); + exit(1); + } + GroupName[VSNAMELENMAX] = '\0'; + + + if ((file_id = H5Fcreate(HDFName , H5F_ACC_TRUNC , H5P_DEFAULT , H5P_DEFAULT)) < 0) { + /* error occured opening the HDF File for write */ + fprintf(stderr , "HDF file could not be opened for writing\n"); + fprintf(stderr , "NOTE: GIF file must be present in the same directory as the binary on UNIX systems.\n"); + exit(1); + } + + /* create a group within the root group to hold the gif image */ + /* might want to make a different naming style out here */ + image_id = H5Gcreate(file_id, GroupName , 0); + + /* first create the global palette if there is one */ + if (gifHead.PackedField & 0x80) { /* global palette exists */ + hid_t dataspace_id; /* identifier for dataspace */ + hsize_t dims[2]; /* specify the dimensions of the palette */ + + hsize_t dimsr[1] = {1}; /* needed to store reference */ + hid_t ref_dataspace_id; /* dataspace id for references */ + hid_t ref_dataset_id; /* dataset id for references */ + + /* size of the palette is tablesize (rows) X 3 (columns) */ + dims[0] = gifHead.TableSize; + dims[1] = 3; + + /* create the dataspace */ + if ((dataspace_id = H5Screate_simple(2 , dims , NULL)) < 0) { + fprintf(stderr , "Could not create dataspace for palette. Aborting...\n"); + return -1; + } + + /* create the palette dataset */ + if ((pal_id = H5Dcreate(image_id , "Global Palette" , H5T_NATIVE_UINT8 , dataspace_id , H5P_DEFAULT )) < 0) { + fprintf(stderr , "Could not create palette dataset. Aborting...\n"); + return -1; + } + + /* write the palette data out */ + /****** Ask Elena about VOIDP ******/ + if ((status = H5Dwrite(pal_id , H5T_NATIVE_UINT8 , H5S_ALL , H5S_ALL , H5P_DEFAULT , (void *)gifHead.HDFPalette)) < 0) { + fprintf(stderr , "Error writing dataset. Aborting...\n"); + return -1; + } + + /* set palette attributes */ + + /* attribute CLASS = PALETTE */ + if ((write_text_attribute(pal_id , "CLASS" , "PALETTE")) < 0) { + fprintf(stderr , "Unable to write palette attributes. Aborting\n"); + return -1; + } + + /* attribute PAL_COLORMODEL = RGB */ + if ((write_text_attribute(pal_id , "PAL_COLORMODEL" , "RGB")) < 0) { + fprintf(stderr , "Unable to write palette attributes. Aborting\n"); + return -1; + } + + /* attribute PAL_TYPE = STANDARD8 */ + if ((write_text_attribute(pal_id , "PAL_TYPE" , "STANDARD8")) < 0) { + fprintf(stderr , "Unable to write palette attributes. Aborting\n"); + return -1; + } + + /* attribute PAL_VERSION = 1.0 */ + if ((write_text_attribute(pal_id , "PAL_VERSION" , "1.0")) < 0) { + fprintf(stderr , "Unable to write palette attributes. Aborting\n"); + return -1; + } + + /* create dataspace for the dataset to store references */ + ref_dataspace_id = H5Screate_simple(1 , dimsr , NULL); + + /* create a dataset to store the references */ + ref_dataset_id = H5Dcreate(image_id , "Palette Reference" , H5T_STD_REF_OBJ , ref_dataspace_id , H5P_DEFAULT); + + /* create a reference to the palette */ + if ((status = H5Rcreate(&pal_ref , image_id , "Global Palette" , H5R_OBJECT , -1)) < 0) { + fprintf(stderr , "Unable to create palette reference\n"); + return -1; + } + + /* write the reference out */ + if ((status = H5Dwrite(ref_dataset_id , H5T_STD_REF_OBJ, H5S_ALL, H5S_ALL , H5P_DEFAULT, &pal_ref)) < 0) { + fprintf(stderr , "Unable to write Palette Reference"); + return -1; + } + + /* close dataset */ + if ((status = H5Dclose(ref_dataset_id)) < 0) { + fprintf(stderr , "Unable to close palette dataset.\n"); + return -1; + } + + /* close dataspace */ + if ((status = H5Sclose(ref_dataspace_id)) < 0) { + fprintf(stderr , "Unable to close palette dataspace.\n"); + return -1; + } + + /* close everything */ + if ((status = H5Dclose(pal_id)) < 0) { + fprintf(stderr , "Unable to close palette dataset. Aborting.\n"); + return -1; + } + + if ((status = H5Sclose(dataspace_id)) < 0) { + fprintf(stderr , "Unable to close palette dataspace. Aborting.\n"); + return -1; + } + + } + + for(i=0 ; i < ImageCount ; i++) { + /* variables for the images */ + hsize_t dims[2]; /* dimensions for the dataset */ + hid_t dataspace_id; /* identifier for the dataspace */ + hid_t sub_image_id; /* wierd name to distinguish from the group_id */ + + /* variables for the attributes */ + hsize_t attr_dims[2]; /* dimensions for the attribute */ + hid_t attr_dataspace_id; /* dataspaces needed for the various attributes */ + hid_t attr_attr_id; /* attribute id */ + BYTE minmax[2]; /* lower and upper minmax values */ + + /* initialise minmax */ + minmax[0] = 0 ; minmax[1] = 255; + + /* get the gifImageDesc */ + gifImageDesc = GifMemoryStruct.GifImageDesc[i]; + + /* set the dimensions */ + dims[0] = gifImageDesc->ImageHeight; + dims[1] = gifImageDesc->ImageWidth; + + /* create the empty dataspace */ + if ((dataspace_id = H5Screate_simple(2 , dims , NULL)) < 0) { + fprintf(stderr , "Could not create image dataspace. Aborting\n"); + return -1; + } + + /* create the image name */ + sprintf(ImageName , "Image%d" , i); + + /* create the image data set */ + if ((sub_image_id = H5Dcreate(image_id , ImageName , H5T_NATIVE_UINT8 , dataspace_id , H5P_DEFAULT)) < 0) { + fprintf(stderr , "Could not create dataset for image. Aborting... \n"); + return -1; + } + + /* write out the image */ + /****** Ask Elena about VOIDP ******/ + if ((status = H5Dwrite(sub_image_id , H5T_NATIVE_UINT8 , H5S_ALL , H5S_ALL , H5P_DEFAULT , (void *)(gifImageDesc->Image))) < 0) { + fprintf(stderr , "Error writing image. Aborting... \n"); + return -1; + } + + /* set the attributes */ + /* This info is available at http://hdf.ncsa.uiuc.edu/HDF5/doc/ImageSpec.html */ + /* The following attributes must be set for each image: + ** --------------------------------------- + ** Attribute Name Value + ** CLASS IMAGE + ** IMAGE_VERSION 1.0 + ** IMAGE_SUBCLASS IMAGE_BITMAP + ** PALETTE ref. to palette datasets + ** IMAGE_MINMAXRANGE [0,255] + ** --------------------------------------- + */ + + /**************************************** + ** Attribute: CLASS + ** Value : IMAGE + *****************************************/ + + if (write_text_attribute(sub_image_id , "CLASS" , "IMAGE") < 0) { + fprintf(stderr , "Unable to write CLASS = IMAGE attribute\n"); + return -1; + } + + /**************************************** + ** Attribute: IMAGE_VERSION + ** Value : 1.0 + *****************************************/ + + if (write_text_attribute(sub_image_id , "IMAGE_VERSION" , "1.0") < 0) { + fprintf(stderr , "Unable to write IMAGE_VERSION attribute\n"); + return -1; + } + + /**************************************** + ** Attribute: IMAGE_SUBCLASS + ** Value : IMAGE_BITMAP + *****************************************/ + + if (write_text_attribute(sub_image_id , "IMAGE_SUBCLASS" , "IMAGE_BITMAP") < 0) { + fprintf(stderr , "Unable to write IMAGE_SUBCLASS attribute\n"); + return -1; + } + + /**************************************** + ** Attribute: IMAGE_COLORMODEL + ** Value : RGB + *****************************************/ + + if (write_text_attribute(sub_image_id , "IMAGE_COLORMODEL" , "RGB") < 0) { + fprintf(stderr , "Unable to write IMAGE_SUBCLASS attribute\n"); + return -1; + } + + /**************************************** + ** Attribute: PALETTE + ** Value : Reference to Palette + *****************************************/ + + /**** MAKE SURE PALETTE EXISTS!!! ****/ + if (gifHead.PackedField & 0x80) { /* global palette exists */ + + attr_dims[0] = 1; + + /* create the dataspace for the attribute */ + attr_dataspace_id = H5Screate_simple(1 , attr_dims , NULL); + + /* create the attribute */ + attr_attr_id = H5Acreate(sub_image_id , "PALETTE" , H5T_STD_REF_OBJ , attr_dataspace_id , H5P_DEFAULT); + + if ((status = H5Awrite(attr_attr_id , H5T_STD_REF_OBJ , &pal_ref)) < 0) { + fprintf(stderr , "Unable to write attribute. Aborting \n"); + return -1; + } + + /* close the attribute */ + if ((status = H5Aclose(attr_attr_id)) < 0) { + fprintf(stderr , "Unable to close CLASS IMAGE attribute. Aborting.\n"); + return -1; + } + + /* close the dataspace */ + if ((status = H5Sclose(attr_dataspace_id)) < 0) { + fprintf(stderr , "Unable to close attribute dataspace. Aborting \n"); + return -1; + } + + } + + /**************************************** + ** Attribute: IMAGE_MINMAXRANGE + ** Value : minmax + *****************************************/ + + attr_dims[0] = 2; + + /* create the dataspace for the attribute */ + attr_dataspace_id = H5Screate_simple(1 , attr_dims , NULL); + + /* create the attribute */ + attr_attr_id = H5Acreate(sub_image_id , "IMAGE_MINMAXRANGE" , H5T_NATIVE_UINT8 , attr_dataspace_id , H5P_DEFAULT); + + if ((status = H5Awrite(attr_attr_id , H5T_NATIVE_UINT8 , minmax)) < 0) { + fprintf(stderr , "Unable to write attribute. Aborting \n"); + return -1; + } + + /* close the attribute */ + if ((status = H5Aclose(attr_attr_id)) < 0) { + fprintf(stderr , "Unable to close CLASS IMAGE attribute. Aborting.\n"); + return -1; + } + + /* close the dataspace */ + if ((status = H5Sclose(attr_dataspace_id)) < 0) { + fprintf(stderr , "Unable to close attribute dataspace. Aborting \n"); + return -1; + } + + + /* close everything */ + if ((status = H5Dclose(sub_image_id)) < 0) { + fprintf(stderr , "Unable to close image dataset. Aborting \n"); + return -1; + } + + if ((status = H5Sclose(dataspace_id)) < 0) { + fprintf(stderr , "Unable to close image dataspace. Aborting \n"); + return -1; + } + + } + + /* close the main image group */ + if ((status = H5Gclose(image_id)) < 0) { + fprintf(stderr , "Could not close the image group. Aborting...\n"); + return -1; + } + + /* close the H5 file */ + if ((status = H5Fclose(file_id)) < 0) { + fprintf(stderr , "Could not close HDF5 file. Aborting...\n"); + return -1; + } + + return(0); +} |